CN102582479B - Supporting device - Google Patents

Abstract

The invention provides a supporting device which is suitable for a child car safety seat and comprises a connecting piece arranged on the bottom surface of the seat and a supporting component telescopically clamped in the connecting piece, wherein the supporting component comprises a supporting seat and a plurality of supporting tubes, the supporting tubes are connected in pairs to form a first connecting end and a second connecting end, the first connecting end is telescopically clamped in the connecting piece, and the second connecting end protrudes out of the connecting piece and is fixedly connected with the supporting seat. The supporting device can be extended and retracted in multiple ways, so that the extension and retraction stroke is long, the height adjustment is not limited, and the using effect is good.

Description

Support device

technical field

The invention relates to a support device, in particular to a support device suitable for child car safety seats.

Background technique

For parents with children, using a stroller as a child's means of transportation when carrying children out can avoid the inconvenience of carrying or holding children, but when the journey is far away, you need to take a car. The safety facilities set up, such as seat belts, airbags, etc., are not suitable for children, and may even cause harm to children. In order to ensure the safety of children in cars, many parents install child car safety seats in cars. A child car safety seat is a seat that is tied to a car seat for a child to ride, has restraint equipment, and can restrain the child in the event of a car accident to ensure the safety of the child.

The existing child car safety seat includes a support device for adjusting the height of the seat. The device device includes a connecting piece arranged at the front end of the seat ground and a support that is engaged with the connecting piece and supported on the car floor. Assemblies, the support assembly can move up and down relative to the connecting piece, so as to adjust the seat height of the child car safety seat, and the support assembly can be made Locked at different heights, so that the child car safety seat can be applied to different car models. In the prior art, the support assembly includes a support tube and a support seat, and the connection seat is provided with a fixed tube and an engaging mechanism, and the upper end of the support tube is telescopically engaged with the engaging mechanism. In the fixed tube, the lower end of the support tube protrudes outside the connector and is fixedly connected to the support seat. Since the support assembly in the prior art only includes one support tube and the accommodation space of the connector is limited, the The expansion and contraction process of the support tube is relatively short, so that the adjustment height of the child car safety seat is limited, thereby affecting the use effect.

Therefore, it is necessary to provide an improved support device to overcome the above-mentioned defects.

Contents of the invention

The purpose of the present invention is to provide a support device that can be multi-telescopic, so that the stretching process is long, the height adjustment is not limited, and the use effect is good.

In order to achieve the above object, the present invention provides a supporting device, which is suitable for a child car safety seat, comprising a connecting piece arranged on the bottom surface of the seat and a supporting assembly telescopically engaged in the connecting piece, the The support assembly includes a support base and a number of support tubes, the support tubes are connected in pairs to form a first connection end and a second connection end, and the first connection end is telescopically engaged in the connector, The second connecting end protrudes from the connecting piece and is fixedly connected to the supporting base.

Preferably, the support assembly includes a first support tube and a second support tube, a fixed tube is fixed inside the connector, the second support tube is telescopically engaged in the fixed tube, and the first support tube is The upper end of a support tube is telescopically engaged in the second support tube, and the lower end of the first support tube protrudes outside the connecting piece and is fixedly connected to the support base.

In a specific embodiment of the present invention, an adjustment button is provided on the support base, and when the adjustment button is operated, the first support tube can move relative to the second support tube, thereby changing the support The distance between the seat and the connector.

Preferably, a first engaging member and a tie rod assembly are provided inside the first supporting tube, the first engaging member is shrinkably protruded outside the first supporting tube, and the second supporting tube is provided with There are several lower engaging holes, the pull rod assembly is slidably arranged in the first support tube, the first engaging member is detachably engaged in any of the lower engaging holes, when the adjustment When the button moves toward the pull rod assembly, the pull rod assembly slides and drives the first engaging member to separate from the lower engaging hole, so that the first support tube can be retracted into the second support tube, When the adjustment button moves away from the pull rod assembly, the pull rod assembly slides and drives the first engaging member to engage in the lower engaging hole.

Preferably, a first stop piece protrudes from the first support tube, and a first stop piece matched with the first stop piece is provided on the side wall of the second support tube. The first stop member resists the first stop block to push the second support tube to slide.

Preferably, a second stop piece protrudes from the second support tube, and a second stop block matching the second stop piece is provided on the side wall of the fixed tube.

Preferably, an engaging assembly is provided inside the connector, and an upper engaging hole is also provided on the second support tube, and the upper and lower engaging holes are respectively provided on two sides of the second support tube. With respect to the side wall, the engaging component is detachably engaged in any one of the upper engaging holes, and the first engaging member is detachably engaged in any of the lower engaging holes.

Preferably, the pull rod assembly includes a pull rod, a fixing piece and a return spring, the fixing piece is accommodated in the pull rod, the pull rod is slidably arranged in the first support tube, and the side wall of the pull rod A sliding hole is opened, the first stop member passes through the sliding hole and is fixedly connected between the first support tube and the fixing member, and the return spring resists the fixing member and the pull rod Between; the fixing part has a protrusion that protrudes out of the first support tube and interferes with the engaging assembly. When the first support tube is close to the upper engaging part, the protrusion Collision with the arc-shaped hook makes the arc-shaped hook disengage from the upper engaging hole.

Preferably, the upper end of the adjustment button protrudes outside the support base, the lower end is provided with a first slope, and the lower end of the pull rod is provided with a second slope matching the adjustment button.

Preferably, the fixing member is provided with an engaging groove, the side wall of the first support tube is provided with an opening communicating with the engaging groove, and the first engaging member is accommodated in the engaging groove The inside and part of it can be folded and protrude outside the opening.

Preferably, a first long hole is opened on two opposite side walls of the fixing part, a second long hole is opened through the first engaging part, and a sliding block is slidably passed through the first long hole. The elongated hole and the second elongated hole are fixedly connected to the pull rod, an oblique angle is formed between the second elongated hole and the first elongated hole, and the sliding block can drive the first engaging member to be detachable snapped into the lower snap hole.

Preferably, the sliding hole, the first elongated hole and the second elongated hole are waist-shaped holes.

Preferably, the engaging assembly includes a pivot shaft, an elastic member and an upper engaging member, the upper engaging member is pivotally connected to the side wall of the connecting member through the pivot shaft, and the elastic members are respectively When the side wall of the fixing tube is in contact with the rear end of the upper engaging member, the front end of the upper engaging member forms an arc-shaped hook, and the arc-shaped hook is detachably engaged on the upper engaging member. snap hole.

Preferably, a locking assembly is also provided in the connecting piece, a locking hole is opened on the side wall of the second support tube, the locking assembly passes through the fixing tube and is detachably clamped on the locking inside the hole.

Preferably, the connecting piece has a cavity, and the fixing tube, the locking component and the engaging component are all accommodated in the cavity.

Preferably, the locking assembly includes a pushing spring and a locking piece, the pushing spring interferes between the locking piece and the side wall of the cavity, and the fixing tube is provided with a hole for the locking piece to pass through. A fixing hole, the locking piece passes through the fixing hole and is detachably engaged in the locking hole, and the first stop member detachably resists the locking piece.

In another specific embodiment of the present invention, the pull rod assembly includes a pull rod, a fixing piece and a return spring, the fixing piece is accommodated in the pull rod, and the pull rod is slidably arranged in the first support tube, A sliding hole is opened on the side wall of the pull rod, the first stop member passes through the sliding hole and is fixedly connected between the first support tube and the fixing member, and the return spring is in contact with the between the fixing member and the tie rod.

Preferably, the snap-fit component includes a pivot shaft, an elastic member and a snap-fit button, the snap-fit button is pivotally connected in the connecting piece through the pivot shaft and partially protrudes outside the connecting piece , the elastic members are in contact with the side wall of the fixing tube and the rear end of the engaging button respectively, and the front end of the engaging button forms an arc-shaped hook, and the arc-shaped hook is detachably engaged In the upper engaging hole, when the rear end of the engaging button is pressed, the arc hook rotates around the pivot shaft to separate from the upper engaging hole.

In yet another specific embodiment of the present invention, a locking assembly is also provided in the connecting piece, a locking hole is opened on the side wall of the second support tube, and the locking assembly passes through the fixing tube and can be separated. snap into the locking hole.

Preferably, a second engaging member protrudes from the first support tube, and a retraction locking hole is opened on the side wall of the second supporting tube, and the second engaging member is detachably engaged with the The retraction into the locking hole.

Preferably, a release block protrudes inside the connecting part, and the release block detachably resists the second engaging part. When the second engaging part approaches the releasing block, the The release lock block interferes with the second engaging member to separate the second engaging member from the retracting locking hole.

Preferably, a first stop piece protrudes from the first support tube, and a first stop piece matched with the first stop piece is provided on the side wall of the second support tube. The first stop member resists the first stop block to push the second support tube to slide.

Preferably, a second stop piece protrudes from the second support tube, and a second stop block matching the second stop piece is provided on the side wall of the fixed tube.

Preferably, the first supporting tube is provided with a plurality of first engaging holes, and the first engaging holes include first upper and lower holes respectively opened on two opposite side walls of the first supporting tube. Engaging holes, the second supporting tube is provided with a plurality of second engaging holes, and the second engaging holes include second upper and lower two respectively opened on two opposite side walls of the second supporting tube. snap hole.

Preferably, an engaging assembly and an engaging button are also provided in the connector, the engaging assembly includes a pivot shaft, an elastic element, and an engaging element, and the pivot shaft passes through the engaging element so that The engaging member is pivotally connected to the connecting member, the elastic member is in contact with the side wall of the fixed pipe and the rear end of the engaging member, and the front end of the engaging member forms an arc hook, so The engaging button is in contact with the rear end of the engaging member, and the arc-shaped hook is detachably engaged in the first and second engaging holes. When the engaging button is pressed, the arc The shape clip rotates around the pivot shaft so as to be separated from the first and second engaging holes.

Preferably, the first support tube is provided with a first telescopic hole and a second telescopic hole, the upper end of the second engaging member is telescopically passed through the first telescopic hole, and the second The lower end of the engaging part is telescopically passed through the second telescopic hole, and a slot is opened on the second engaging part.

Preferably, it also includes an elastic body, the elastic member includes a first elastic part and a second elastic part, the first elastic part is clamped in the slot, and the second elastic part is clamped in the on the first support tube.

Preferably, both sides of the upper end of the second engaging member respectively form a first inclined surface and a second inclined surface, the first inclined surface is located close to the upper end side of the first support tube, and the second inclined surface The inclined surface is located close to the lower end side of the first support tube, and the release block is matched with the first inclined surface.

Preferably, the connecting piece forms a cavity, and the fixing tube, the locking component and the engaging component are all accommodated in the cavity.

Preferably, the locking assembly includes a pushing spring and a locking piece, the pushing spring interferes between the locking piece and the side wall of the cavity, and the fixing tube is provided with a hole for the locking piece to pass through. A fixing hole, the locking piece passes through the fixing hole and is detachably engaged in the locking hole, and the first stop member detachably resists the locking piece.

In yet another specific embodiment of the present invention, the supporting device includes a connecting piece arranged on the bottom surface of the seat and a supporting assembly telescopically engaged in the connecting piece, and the supporting assembly includes a supporting seat and several The support tubes are connected in pairs to form a first connection end and a second connection end, the first connection end is telescopically engaged in the connector, and the second connection end is Extending outside the connecting piece and fixedly connected to the support seat, the connecting piece is provided with a snap-fit assembly that is snap-connected with the first connection end, and a snap-fit assembly is provided between two of the plurality of support tubes. The clamping component fixes the stretched position between the support tubes. When the clamping assembly or the clamping component is operated, the telescopic distance between the connecting component and the several support tubes Change.

Preferably, the support seat is provided with an adjustment button connected to the engaging member, and the adjusting button drives the engaging member to move, so that the support tubes connected in pairs are detached from the fixation, thereby changing the The connection position between the above-mentioned support tubes.

Preferably, when the engaging assembly is operated to disengage from the first connecting end, the connection position between the support tube and the connecting piece changes.

Preferably, it also includes a pull rod assembly, the engaging member is arranged in the pull rod assembly, the adjustment button is connected with the pull rod assembly and can drive the pull rod assembly to slide, so that the pull rod assembly drives the card Assemblies move.

Preferably, the pull rod assembly has a projection, and when the pull rod assembly is close to the engaging assembly, the projection interferes with the engaging assembly so that the engaging assembly is operated to break away from the first connection end, so that the connection position between the support pipe and the connecting piece changes.

Compared with the prior art, the support assembly of the support device of the present invention includes a plurality of support tubes connected in pairs. Since the first connection ends of the plurality of support tubes are telescopically clamped in the connector, the second connection ends It protrudes outside the connecting piece and is fixedly connected to the support base. Therefore, under the condition that the accommodation space of the connecting piece remains unchanged, the expansion and contraction process of the support device is equal to the sum of the expansion and contraction processes of the several support tubes. Therefore, The expansion and contraction process of the support assembly is greatly increased, so that the height adjustment of the child car safety seat is not limited by the space of the connecting piece, so the use effect is good.

The present invention will become clearer through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention.

Description of drawings

Fig. 1 is a structural schematic diagram of a specific embodiment of the supporting device of the present invention.

FIG. 2 is a structural schematic view of the supporting device shown in FIG. 1 at another angle.

Fig. 3 is a structural schematic view of another state of the supporting device shown in Fig. 1 .

FIG. 4 is a cross-sectional view of the supporting device shown in FIG. 3 .

FIG. 5 is an enlarged view of the structure of part A shown in FIG. 4 .

FIG. 6 is a cross-sectional view of the support device shown in FIG. 1 at another angle.

FIG. 7 is an enlarged view of the structure of part B shown in FIG. 6 .

FIG. 8 is a partial structural schematic diagram of the supporting device shown in FIG. 1 .

FIG. 9 is an exploded view of part of the structure of the supporting device shown in FIG. 8 .

FIG. 10 is a partial structural sectional view of the supporting device shown in FIG. 8 .

FIG. 11 is a cross-sectional view of the supporting device shown in FIG. 1 at another angle.

FIG. 12 is an enlarged view of the structure of part C shown in FIG. 11 .

Fig. 13 is a cross-sectional view of another state of the supporting device shown in Fig. 1 .

Fig. 14 is a cross-sectional view of another state of the supporting device shown in Fig. 1 .

Fig. 15 is a cross-sectional view of another state of the support device shown in Fig. 1 .

Fig. 16 is a schematic structural view of another specific embodiment of the supporting device of the present invention.

Fig. 17 is a cross-sectional view of another state of the supporting device shown in Fig. 16 .

Fig. 18 is a cross-sectional view of another state of the supporting device shown in Fig. 16 .

FIG. 19 is an enlarged view of the structure of part D shown in FIG. 18 .

FIG. 20 is an enlarged view of the structure of part E shown in FIG. 18 .

Fig. 21 is a cross-sectional view of another state of the supporting device shown in Fig. 16 .

Fig. 22 is a structural diagram of another specific embodiment of the supporting device of the present invention.

Fig. 23 is a cross-sectional view of another state of the supporting device shown in Fig. 22 .

FIG. 24 is an enlarged view of the structure of part F shown in FIG. 23 .

Fig. 25 is a cross-sectional view of the support device shown in Fig. 23 at another angle.

Fig. 26 is a cross-sectional view of another state of the supporting device shown in Fig. 25 .

Fig. 27 is an enlarged view of the structure of part G shown in Fig. 26 .

Fig. 28 is a cross-sectional view of another state of the supporting device shown in Fig. 25 .

Fig. 29 is an enlarged view of the structure of part H shown in Fig. 28 .

FIG. 30 is a partial structural view of the supporting device shown in FIG. 22 .

Fig. 31 is a partial structural cross-sectional view of the supporting device shown in Fig. 30 .

Fig. 32 is an exploded view of part of the structure of the supporting device shown in Fig. 30 .

Detailed ways

Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements. As mentioned above, the present invention provides a multi-telescopic support device, so that the stretching process is long, the height adjustment is not limited, and the use effect is good.

With reference to Fig. 1, the supporting device 1 of the present invention is suitable for a child car safety seat (not shown), and the supporting device 1 includes a connecting piece 10 and a retractable ground clamp arranged on the bottom surface of the seat (not shown). The support assembly 20 fits in the connector 10, and the support assembly 20 includes a support base 23 and several support tubes. In this embodiment, the support tube includes a first support tube 21 and a second support tube 22, a fixed tube 11 is fixed inside the connector 10, and the fixed tube 11 is sleeved on the outside of the second support tube 22 , the upper end of the second support pipe 22 forms a first connection end, and the first connection end is telescopically engaged in the fixed pipe 11, and the second support pipe 22 is sleeved on the first support The outer side of the tube 21, the upper end of the first support tube 21 is telescopically engaged in the second support tube 22, so that the first support tube 21 can slide and expand relative to the second support tube 22, and the first support tube 21 The lower end of the support tube 21 forms a second connection end, and the second connection end protrudes from the connection member 10 and is fixedly connected to the support seat 23 . Optionally, the number of the support tubes may also be three, four or more.

1-15, in a specific embodiment of the present invention, a locking hole 220 and a plurality of engaging holes 222 are opened on the side wall of the second support tube 22, and the outer side wall of the upper end of the second support tube 22 is A second stopper 221 is protruded upward, and the engaging hole 222 includes upper and lower engaging holes 222a and 222b respectively provided on two opposite side walls of the second support tube 22. The fixing tube 11 A second stop block 111 matching the second stop member 221 is provided on the inner side wall of the lower end of the bottom end of the inner wall. When the second support tube 22 moves away from the fixed tube 11, the second stop block 111 is used To prevent the second support tube 22 from sliding out of the fixing tube 11 .

Referring to Figures 1-7, the connector 10 includes a front cover 10a and a rear cover 10b, the front cover 10a and the rear cover 10b are closed and connected to form a cavity 100, and the cavity 100 is provided with The locking component 12 , the upper engaging component 13 and the fixing tube 11 . The locking assembly 12 includes a pushing spring 121 and a locking piece 122. The pushing spring 121 is in contact between one end of the locking piece 122 and the side wall of the rear cover 10b. The fixing hole 110 through which the locking piece 122 passes, the other end of the locking piece 122 passes through the fixing hole 110 and is detachably engaged in the locking hole 220 of the second support tube 22, and is engaged with the One end of the locking piece 122 in the locking hole 220 forms a slope structure 1220, and two limiting blocks 123 are protruded inside the rear cover 10b, and a limiting interval is formed between the limiting blocks 123. The locking piece 122 is slidably disposed in the limit interval; the upper engaging component 13 includes a pivot shaft 131, an elastic member 132 and an upper engaging member 133, and the upper engaging member 133 passes through the pivot joint The shaft 131 is pivotally connected to the inner side wall of the front cover 10a, the elastic member 132 is in contact with the outer side wall of the fixed tube 11 and the rear end of the upper engaging member 133 respectively, and the upper engaging member The front end of 133 forms an arc-shaped hook 1330, and the arc-shaped hook 1330 is detachably engaged in the upper engaging hole 222a.

Referring to Figures 8-15, a first engaging member 211 and a first stopper 212 protrude from the outer wall of the upper end of the first support tube 21, and a pull rod assembly 24 is provided inside the first support tube 21, so that The pull rod assembly 24 includes a pull rod 241, a fixing member 242 and a return spring 243, the upper end of the pull rod 241 is provided with a receiving groove 2410, the fixing member 242 is accommodated in the receiving groove 2410, and the side of the receiving groove 2410 A sliding hole 2411 is opened on the wall, and the first stop member 212 passes through the opening (not numbered in the figure) on the first support tube 21 and the sliding hole 2411 and is fixedly connected to the fixing member 245 by a fixing member 245. A piece 242, so that the fixing piece 242 is fixedly connected in the first support tube 21, the return spring 243 interferes between the fixing piece 242 and the side wall of the receiving groove 2410, and the fixing piece 242 has a protrusion protruding from the The protrusion 2420 on the outside of the first support tube 21 and in contact with the arc-shaped hook 1330 of the upper engaging member 133, the end of the protrusion 2420 is inclined, and the lower end of the pull rod 241 is provided with an adjustment groove 2412 And one side of the adjustment groove 2412 forms a first slope 2413, the support seat 23 is provided with an adjustment button 230, the upper end of the adjustment button 230 protrudes outside the support seat 23, and the adjustment button 230 The lower end is provided with a second slope 2300 matching the first slope 2413 . Specifically, the fixing member 242 is provided with an engaging groove 2422 , the side wall of the first support tube 21 is provided with an opening 210 communicating with the engaging groove 2422 , and two opposite sides of the engaging groove 2422 A first elongated hole 2423 is correspondingly opened on the side wall. The first engaging member 211 is provided with a pawl 2112. The first engaging member 211 is accommodated in the engaging groove 2422 and the pawl 2112 can be received. protrude out of the opening 210 so as to be detachably engaged in the lower engaging hole 222b. More specifically, a second elongated hole 2110 is penetrating through the first engaging member 211, an oblique angle is formed between the second elongated hole 2110 and the first elongated hole 2423, and a sliding block 244 is provided. The sliding block 244 is a rivet. The rivet is riveted to the openings on both sides of the pull rod 241 and slidably passes through the first long hole 2423 and the second long hole 2110. When the pull rod 241 moves, the rivet will move along the second long hole. A long hole 2423 moves, and drives the first engaging member 211 to move along the second elongated hole 2110, so that the first engaging member 211 can be accommodated in the engaging groove 2422 or protruded from the The engaging groove 2422 is outside. During the telescopic process of the first support tube 21, the first stop member 212 detachably resists the slope structure 1220 of the locking piece 122, and the inner wall of the lower end of the second support tube 22 is provided with a The first stop block 223 matched with the first stop member 212 is used to stop the first support tube 21 when the first support tube 21 moves away from the second support tube 22. The first support tube 21 slides out of the second support tube 22 . The adjusting button 23 has two states of pressing and popping up. When the adjusting button 23 is pressed, the first engaging member 211 is separated from the lower engaging hole 222b; when the adjusting button 23 When springing up, the first engaging member 211 is engaged in the lower engaging hole 222b. In this embodiment, the sliding hole 2411 , the first long hole 2423 and the second long hole 2110 are waist-shaped holes; the first and second stoppers 212 and 221 are screws.

The working principle of the supporting device in this embodiment will be described in detail below with reference to Figures 1-15, specifically as follows:

In the initial state, the first support tube 21 and the second support tube 22 are accommodated in the fixed tube 11 at the same time, and the first support tube 21 is stretched toward the cavity 100 of the connector 10 At this time, the locking piece 122 is engaged in the locking hole 220 of the second support tube 22 so that the second support tube 22 is always kept in the state of being accommodated in the fixed tube 11, so that the support assembly 20 Only the first support tube 22 is stretched relative to the fixed tube 11. During the stretching process of the first support tube 21, the first engaging members 211 are respectively engaged with different lower clamps. When the first support tube 21 stretches to the position where the first stopper 212 touches the slope structure 1220 of the locking piece 122, the locking piece 122 is separated from the locking hole 220 At this time, the second support tube 22 is out of the locked state with the fixed tube 11 and can be stretched toward the outside of the cavity 100. At the same time, the first stopper 212 is received by the first stopper. 223, it can no longer be stretched outward, so that there is no relative position change between the first support tube 21 and the second support tube 22, but the relative position of the second support tube 22 relative to the The fixed tube 11 is relatively stretched. During the stretching process of the second support tube 22, the upper engaging members 133 are respectively engaged in different upper engaging holes 222a; when the adjustment button is pressed 230, the second inclined surface 2300 of the adjustment button 230 slides relative to the first inclined surface 2413, so that the pull rod 241 slides toward the direction of the support seat 23, while the pull rod 241 slides, the rivet moves from The end of the first elongated hole 2423 close to the supporting base 23 slides to the other end, and the rivet also slides in the second elongated hole 2110 from the end away from the pawl 2112 to the other end, the Under the action of the second elongated hole 2110, the first engaging member 211 is retracted into the engaging groove 2422, so that the pawl 2112 of the first engaging member 211 can pass through the lower engaging hole 222b. separated, and then the first support tube 21 can be retracted into the fixed second support tube 22 to adjust to the required support length; when the first support tube 21 continues to retract into the second In the second support tube 22, until the first support tube 21 can no longer be retracted into the second support tube 22, the protrusion 2420 of the fixing part 242 interferes with the arc-shaped hook 1330 of the upper engaging part 133. position, the upper engaging member 133 is pushed and separated from the upper engaging hole 222a (as shown in FIG. 15 ), so that the second support tube 22 can be retracted into the fixing tube 11 and Adjust to the required support length; when the second support tube 22 is fully retracted into the fixed tube 11, release the adjustment button 230 to make it pop up, at this time, the first engaging member 211 engages In the lower engaging hole 222b, the upper engaging member 133 is engaged in the upper engaging hole 222a and the locking piece 122 is engaged in the locking hole 220.

Referring to Figures 16-21, in another embodiment of the invention, the cavity 100 of the connector 10 is provided with a button assembly 14 and the fixing tube 11, and the side wall of the second support tube 22 is provided with a There are a number of engaging holes 222 and a second stopper 221 protrudes from the outer side wall of the upper end of the second support tube 22, and a second stopper 221 is provided on the inner sidewall of the lower end of the fixed tube 11. For the matched second stop block 111 , the engagement hole 222 includes upper and lower engagement holes 222 a and 222 b respectively disposed on two opposite side walls of the second support tube 22 . The engaging button assembly 14 protrudes from the connector 10 and the front end of the engaging button assembly 14 is detachably engaged in the upper engaging hole 222a; the upper end of the first support tube 21 The outer wall is protruded with a first engaging member 211 and a first stopper 212, the first engaging member 211 is detachably engaged in the lower engaging hole 222b, and the second supporting tube 22 A first stop block 223 matching the first stop member 212 is provided on the inner wall of the lower end of the lower end; an adjustment button 230 is provided inside the support seat 23, and the adjustment button 230 has two functions of pressing and popping up. state, when the adjusting button 230 is pressed, the first engaging member 211 is separated from the lower engaging hole 222b, and when the adjusting button 230 is popped up, the first engaging member 211 engages in the lower engaging hole 222b.

In this embodiment, the first support tube 21 is provided with a pull rod assembly 24', the pull rod assembly 24' includes a pull rod 241', a fixing piece 242' and a return spring 243', and the upper end of the pull rod 241' is opened There is a receiving groove 2410', the fixing member 242' is completely received in the receiving groove 2410', a sliding hole (not shown) is opened on the side wall of the receiving groove 2410', and the first stop The piece 212 passes through the opening (not labeled in the figure) on the first support tube 21 and the sliding hole 2411 and is fixedly connected to the fixing piece 242', so that the fixing piece 242' is fixedly connected in the first support tube 21, The return spring 243' interferes between the fixing member 242' and the side wall of the receiving groove 2410', the lower end of the pull rod 241' is provided with an adjusting groove 2412', and one side of the adjusting groove 2412' A first slope 2413' is formed, and a second slope 2300 matching the first slope 2413' is provided at the lower end of the adjustment button 230. More specifically, the engaging button assembly 14 includes a pivot shaft 141, an elastic member 142, and an engaging button 143. A hollow slot 101 is opened on the front cover 10a of the connector 10, and the engaging button 143 passes through The pivot shaft 141 is pivotally connected to the sidewall of the hollow slot 101 and partially protrudes outside the hollow slot 101, and the elastic member 142 is in contact with the outer sidewall of the fixed tube 11 and the card respectively. The rear end of the engagement button 143, the front end of the engagement button 143 forms an arc-shaped hook 1430, by pressing the rear end of the engagement button 143, the front end of the engagement button 143 winds around the pivot shaft 141 Rotate, so that the arc-shaped hook 1430 is separated from the upper engaging hole 222a.

Other structures in this embodiment are the same as those described in the above embodiments, and will not be described again here. The working principle of the support device 1' in this embodiment is briefly described below: in the initial state, the first support tube 21 and the second support tube 22 are simultaneously accommodated in the fixed tube 11, and the first The support tube 21 is stretched toward the outside of the cavity 100, and when the first stopper 212 of the first support tube 21 touches the first stop block 223, the first support tube 21 drives the first The two support tubes 22 are stretched. During the stretching process of the first support tube 21, the first engaging members 211 are respectively engaged in different lower engaging holes 222b. During the stretching process driven by the first support tube 21, the arc-shaped hooks 1430 of the engaging button 143 are respectively engaged in different upper engaging holes 222a; when the adjusting button 230 is pressed, the After the first engaging member 211 is separated from the lower engaging hole 222b, the first supporting tube 21 can be retracted into the second supporting tube 22, and when the engaging button 143 is pressed, the arc After the hook 1430 is separated from the upper engaging hole 222a, the second support tube 22 can be retracted into the fixed tube 11, so the user can freely operate the adjustment button 230 to make the first The support tube 21 is retracted into the second support tube 22 , or the engaging button 143 is pressed to retract the second support tube 22 into the fixing tube 11 .

Referring to Figures 22-32, in yet another embodiment of the present invention, the side wall of the second support tube 22" of the support device 1" is provided with a locking hole 224, an indentation locking hole 225 and a number of second locking holes. The hole 226 and the second stop member 227 protrude from the outer side wall of the upper end of the second support tube 22 ", and the second engaging hole 226 includes two opposite holes respectively opened in the second support tube 22 ". The second upper and lower engaging holes 226a, 226b on the side wall, the inner wall of the lower end of the fixed pipe 11" is provided with a second stop block 112 matching the second stop piece 227, the first The two stop blocks 112 are used to prevent the second support tube 22" from sliding out of the fixing tube 11".

The connector 10" includes a front cover 10a" and a rear cover 10b", the front cover 10a" and the rear cover 10b" are closed and connected to form a cavity 100", and the cavity 100" is equipped with There are locking components 15, engaging components 16, engaging buttons 17, release blocks 18 and the fixing tube 11". The locking assembly 15 includes a push spring 151 and a locking piece 152, the pushing spring 151 is in contact between the locking piece 152 and the inner surface of the rear cover 10b", and the fixing tube 11' is opened for the The locking piece 152 passes through the fixing hole 113, the locking piece 152 passes through the fixing hole 113 and is detachably engaged in the locking hole 224, and is engaged in the locking hole 224. One end of the piece 152 forms a slope structure 1520, and two limiting blocks 153 are protruded inside the rear cover 10b, and a limiting interval is formed between the limiting blocks 153, and the locking piece 152 is slidably arranged on the within the above-mentioned limit range.

A plurality of first engaging holes 213 are opened on the side wall of the first supporting tube 21", and a second engaging member 214 and a first stopper 215 are provided on the first supporting tube 21". The two engaging parts 214 and the first stopper 215 protrude from the outer wall of the first supporting tube 21", and the first engaging hole 213 includes two holes respectively opened in the first supporting tube 21". The first upper and lower engaging holes 213a, 213b on two opposite side walls, the second engaging member 214 is detachably engaged in the retracted locking hole 225, and the first stopper 215 can be Separately against the slope structure 1520 of the locking piece 152 and the inner wall of the lower end of the second support tube 22" is provided with a first stop block 228 matching the first stop member 215, the first The stop block 228 is used to prevent the first support tube 21 ″ from sliding out of the second support tube 22 ″, and the release block 18 detachably resists the second engaging member 214 .

23-24, the snap button 17 includes an upper snap button 17a and a lower snap button 17b, the snap assembly 16 includes upper and lower snap assemblies 16a, 16b, and the upper snap assembly 16a includes The upper pivot shaft 161a, the upper elastic member 162a and the upper engaging member 163a, the upper pivot shaft 161a passes through the upper engaging member 163a so that the upper engaging member 163a is pivotally connected to the rear cover 10b", the upper elastic member 162a is in contact with the outer wall of the fixed pipe 11" and the rear end of the upper engaging member 163a respectively, and the front end of the upper engaging member 163 forms an upper arc hook 1630, the upper engaging button 17a protrudes from the left side wall of the rear cover 10b" and touches the rear end of the upper engaging member 163a, and the upper arc-shaped hook 1630a is detachably engaged with In the first and second upper engaging holes 226a and 213a; the lower engaging component 16b includes a lower pivot shaft 161b, a lower elastic member 162b and a lower engaging member 163b, and the lower pivot shaft 161b passes through The lower engaging member 163b makes the lower engaging member 163b pivotally connected to the inner side of the rear cover 10b", and the lower elastic member 162b is in contact with the outer wall of the fixing tube 11" and the The rear end of the lower engaging member 163b, the front end of the lower engaging member 163b forms a lower arc-shaped hook 1630b, and the lower engaging button 17b protrudes from the right side wall of the rear cover 10b″ and touches the Referring to the rear end of the lower engaging member 163b, the lower arc hook 1630b is detachably engaged in the first and second lower engaging holes 226b, 213b.

Referring to Figures 28-32, the first support tube 21" is provided with corresponding first telescopic holes 216 and second telescopic holes 217, and the upper end of the second engaging member 214 is telescopically passed through the In the first telescopic hole 216, the lower end of the second engaging member 214 is telescopically passed through the second telescopic hole 217, and the second engaging member 214 close to the front end of the first support tube 21" The side surface is provided with an upwardly inclined slot 2140 . Also includes an elastic body 25, the elastic member 25 includes a first elastic part 251, a connecting part 252 and a second elastic part 253, the first elastic part 251 is clamped in the slot 2140, the connecting part 252 The end of the first elastic part 251 is extended downwards while being bent backward, and the second elastic part 253 is formed by the horizontal extension of the connecting part 252 and the end of the second elastic part 253 is bent. The hook 254 is locked in the slot 218 provided on the first support tube 21".

In this embodiment, the two sides of the upper end of the second engaging member 214 respectively form a first inclined surface 2141 and a second inclined surface 2142, and the first inclined surface 2141 is located close to the first support tube 21". The upper end side of the upper end side of the second inclined surface 2142 is located close to the lower end side of the second support pipe 22", the inner surface of the lower end of the front cover 10a" is protruded with the release block 18, the The release block 18 is provided with an inclined surface matching the first inclined surface 2141 .

The working principle of the support device in this embodiment is: in the initial state, the first support tube 21 ″ and the second support tube 22 ″ are accommodated in the cavity 100 ″ of the connector 10 ″ at the same time, and the The first support tube 21" stretches outward from the cavity 100" away from the connector 10", at this time the locking piece 152 is engaged in the locking hole 224 of the second support tube 22", During the stretching process of the first supporting tube 21", the upper and lower engaging parts 163a, 163b are respectively engaged in different first and second upper engaging holes 226a, 213a and first and second lower engaging holes 226a and 213a simultaneously. In the locking holes 226b, 213b; when the first support tube 21" is stretched to the position where the first stopper 215 touches the slope structure 1520 of the locking piece 152, the locking piece 152 is extended from the lock At this time, the second support tube 22" is out of the locked state and can be stretched outward. At the same time, the first stop member 215 is restricted by the first stop block 228 , can no longer be stretched outward. During the stretching process of the second support tube 22", the upper and lower engaging parts 163a, 163b are respectively engaged in different second upper engaging holes 226a and second In the lower engaging hole 226b; when the upper and lower engaging buttons 17a, 17b are pressed simultaneously, the arc-shaped hooks 1630a, 1630b of the upper and lower engaging members 163a, 163b respectively wrap around the upper and lower The pivot shafts 161a, 161b are rotated to separate from the first and second engaging holes 213, 226, so that the second support tube 22" can be retracted into the fixed tube 11", and the first The support tube 21" moves synchronously with the second support tube 22" under the action of the second engaging member 214. When the second support tube 22" retracts into the release block 18 and resists the first When the second engaging member 214 is in position, the second engaging member 214 is separated from the indentation locking hole 225, so that the first support tube 21" can be further retracted into the second support tube 22. "Inside.

To sum up, the support assembly 20 of the support device 1 of the present invention includes several support tubes. Since the first connection ends of the several support tubes are telescopically clamped in the connector 10, the second connection ends protrude from the The connecting piece 10 is fixedly connected to the supporting seat 23, therefore, under the condition that the accommodation space of the connecting piece 10 remains unchanged, the expansion and contraction process of the support device 1 is equal to the sum of the expansion and contraction processes of the several support tubes, Therefore, the expansion and contraction process of the support assembly 20 is greatly increased, so that the height adjustment of the child car safety seat is not limited by the space of the connecting piece, so the use effect is good.

The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the above-disclosed embodiments, but should cover various modifications and equivalent combinations made according to the essence of the present invention.

Claims (30)

1. a bracing or strutting arrangement, be applicable to safety chair seats of car for children, the attaching parts and the telescopically that comprise the bottom surface of being located at seat are sticked in the supporting component in described attaching parts, it is characterized in that, described supporting component comprises supporting seat and some support tubes, thereby described some support tubes are connected between two and form the first coupling end and the second coupling end, described the first coupling end telescopically is sticked in to be located in described attaching parts, and described the second coupling end convexedly stretches in outside described attaching parts and is fixedly connected with described supporting seat;

In described attaching parts, be provided with the assembly that engages with described the first coupling end engagement connection, when described engaging assembly is operated, the distance of stretch out and draw back between described attaching parts and described some support tubes changes;

Wherein, described attaching parts comprises front cover body and rear cover body, and described front cover body and rear cover body cover and be connected and form a cavity;

Described supporting component comprises the first support tube and the second support tube, in described attaching parts, be fixed with stationary pipes, described the second support tube telescopically is sticked in described stationary pipes, the upper end telescopically of described the first support tube is sticked in described the second support tube, the lower end of described the first support tube convexedly stretches in outside described attaching parts and is fixedly connected with described supporting seat, in described attaching parts, be also provided with locked component, on the sidewall of described the second support tube, offer lock hole, described locked component is also arranged in described lock hole separably through described stationary pipes.

2. bracing or strutting arrangement as claimed in claim 1, it is characterized in that, in described the first support tube, be provided with the first engagement piece, described the first engagement piece is convexly set in outside described the first support tube collapsiblely, described supporting seat is provided with adjusting button, when described adjusting button is operated, described the first support tube can move with respect to described the second support tube, thereby changes the distance of described supporting seat and described attaching parts.

3. bracing or strutting arrangement as claimed in claim 2, it is characterized in that, in described the first support tube, be provided with rod assembly, described the second support tube is provided with some lower connecting holes, described rod assembly is located in described the first support tube slidably, described the first engagement piece is sticked in arbitrary described lower connecting hole separably, when described adjusting button moves towards described rod assembly, described rod assembly slides and drives described the first engagement piece connecting hole from described to separate, thereby described the first support tube can retraction described in the second support tube, when described adjusting button moves away from described rod assembly, described rod assembly slides and drives described the first engagement piece to be sticked in described lower connecting hole.

4. bracing or strutting arrangement as claimed in claim 3, it is characterized in that, on described the first support tube, convex with the first stop bit part, the sidewall of described the second support tube is provided with the first stop block mating with described the first stop bit part, thereby described the first stop bit part is conflicted, the first stop block promotes described the second support tube slip.

5. bracing or strutting arrangement as claimed in claim 4, is characterized in that, convexes with the second stop bit part on described the second support tube, and the sidewall of described stationary pipes is provided with the second stop block mating with described the second stop bit part.

6. bracing or strutting arrangement as claimed in claim 5, it is characterized in that, in described attaching parts, be provided with engaging assembly, on described the second support tube, be also provided with connecting hole, described upper and lower connecting hole is located at respectively two opposing sidewalls of described the second support tube, described engaging assembly is sticked in arbitrary described upper connecting hole separably, and described the first engagement piece is sticked in arbitrary described lower connecting hole separably.

7. bracing or strutting arrangement as claimed in claim 6, it is characterized in that, described rod assembly comprises pull bar, connecting element and retracing spring, described connecting element is contained in described pull bar, described pull bar is located in described the first support tube slidably, on the sidewall of described pull bar, offer sliding eye, described the first stop bit part passes described sliding eye and is fixedly connected on described the first support tube and described connecting element, and described retracing spring contacts between described connecting element and described pull bar.

8. bracing or strutting arrangement as claimed in claim 7, is characterized in that, the upper end of described adjusting button is protruding is exposed to that described supporting seat is outer, lower end is provided with the first inclined-plane, and the lower end of described pull bar is provided with the second inclined-plane mating with described adjusting button.

9. bracing or strutting arrangement as claimed in claim 7, it is characterized in that, described connecting element offers engagement groove, and the sidewall of described the first support tube offers the perforate being communicated with described engagement groove, and described the first engagement piece is contained in described engagement groove and part can fold protruding being exposed to outside described perforate.

10. bracing or strutting arrangement as claimed in claim 9, it is characterized in that, in two opposing sidewalls of described connecting element, offer the first slotted hole, on described the first engagement piece, run through and offer the second slotted hole, one sliding shoe passes slidably described the first slotted hole and the second slotted hole and is fixedly connected on described pull bar, between described the second slotted hole and described the first slotted hole, form oblique angle, described sliding shoe drives described the first engagement piece to be sticked in separably in described lower connecting hole.

11. bracing or strutting arrangements as claimed in claim 10, is characterized in that, described sliding eye, the first slotted hole and the second slotted hole are waist-shaped hole.

12. bracing or strutting arrangements as claimed in claim 8, it is characterized in that, described engaging assembly comprises drive-connecting shaft, elastic component and upper engagement piece, described upper engagement piece is articulated in the sidewall of described attaching parts by described drive-connecting shaft, described elastic component contacts at respectively the rear end of sidewall and the described upper engagement piece of described stationary pipes, the front end of described upper engagement piece forms an arc snap fit, and described arc snap fit is sticked in described upper connecting hole separably.

13. bracing or strutting arrangements as claimed in claim 12, it is characterized in that, described connecting element has that to protrude out described the first support tube outer and engage with described the projection that assembly is conflicted, when described the first support tube is during near described upper engagement piece, the described projection described arc snap fit of conflicting makes described arc snap fit depart from described upper connecting hole.

14. bracing or strutting arrangements as claimed in claim 13, is characterized in that, described stationary pipes, locked component and engaging assembly are all contained in described cavity.

15. bracing or strutting arrangements as claimed in claim 14, it is characterized in that, described locked component comprises promotion spring and locking plate, described promotion spring contacts between described locking plate and the sidewall of described cavity, described stationary pipes offers the fixed orifice wearing for described locking plate, described locking plate is through described fixed orifice being sticked in separably in described lock hole, described the first stop bit part described locking plate of conflicting separably.

16. bracing or strutting arrangements as claimed in claim 1, is characterized in that, on described the first support tube, convex with the second engagement piece, offer retraction lock hole on the sidewall of described the second support tube, and described the second engagement piece is sticked in described retraction lock hole separably.

17. bracing or strutting arrangements as claimed in claim 16, it is characterized in that, in described attaching parts, convex with release the lock piece, described release the lock piece described the second engagement piece of conflicting separably, when described the second engagement piece is during near described release the lock piece, described release the lock piece described the second engagement piece of conflicting is separated described the second engagement piece in described retraction lock hole.

18. bracing or strutting arrangements as claimed in claim 17, it is characterized in that, on described the first support tube, convex with the first stop bit part, the sidewall of described the second support tube is provided with the first stop block mating with described the first stop bit part, thereby described the first stop bit part is conflicted, the first stop block promotes described the second support tube slip.

19. bracing or strutting arrangements as claimed in claim 18, is characterized in that, convex with the second stop bit part on described the second support tube, and the sidewall of described stationary pipes is provided with the second stop block mating with described the second stop bit part.

20. bracing or strutting arrangements as claimed in claim 19, it is characterized in that, on described the first support tube, offer some the first connecting holes, described the first connecting hole comprises the first upper and lower connecting hole in two opposing sidewalls that are opened in respectively described the first support tube, on described the second support tube, offer some the second connecting holes, described the second connecting hole comprises the second upper and lower connecting hole in two opposing sidewalls that are opened in respectively described the second support tube.

21. bracing or strutting arrangements as claimed in claim 20, it is characterized in that, in described attaching parts, be also provided with engaging assembly and engaging button, described engaging assembly comprises drive-connecting shaft, elastic component and engagement piece, described drive-connecting shaft is articulated in described attaching parts described engagement piece through described engagement piece, described elastic component contacts at the rear end of sidewall and the described engagement piece of described stationary pipes, the front end of described engagement piece forms arc snap fit, the conflict rear end of described engagement piece of described engaging button, described arc snap fit is sticked in described first separably, the second connecting hole, when pressing described engaging button, thereby described arc snap fit rotates from described first around described drive-connecting shaft, in the second connecting hole, separate.

22. bracing or strutting arrangements as claimed in claim 16, it is characterized in that, on described the first support tube, offer the first telescopic hole and the second telescopic hole, the upper end telescopically of described the second engagement piece is arranged in described the first telescopic hole, the lower end telescopically of described the second engagement piece is arranged in described the second telescopic hole, on described the second engagement piece, offers fluting.

23. bracing or strutting arrangements as claimed in claim 22, it is characterized in that, also comprise elastic body, described elastic component comprises the first elastic portion and the second elastic portion, described the first elastic portion is arranged in described fluting, and described the second elastic portion is arranged on described the first support tube.

24. bracing or strutting arrangements as claimed in claim 17, it is characterized in that, the both sides of the upper end of described the second engagement piece form respectively the first dip plane and the second dip plane, described the first dip plane is positioned at the upper end side near described the first support tube, described the second dip plane is positioned at the lower end side near described the first support tube, and described release the lock piece mates with described the first dip plane.

25. bracing or strutting arrangements as claimed in claim 21, is characterized in that, described stationary pipes, locked component and engaging assembly are all contained in described cavity.

26. bracing or strutting arrangements as claimed in claim 25, it is characterized in that, described locked component comprises promotion spring and locking plate, described promotion spring contacts between described locking plate and the sidewall of described cavity, described stationary pipes offers the fixed orifice wearing for described locking plate, described locking plate is through described fixed orifice being sticked in separably in described lock hole, described the first stop bit part described locking plate of conflicting separably.

27. 1 kinds of bracing or strutting arrangements, be applicable to safety chair seats of car for children, the attaching parts and the telescopically that comprise the bottom surface of being located at seat are sticked in the supporting component in described attaching parts, it is characterized in that, described supporting component comprises supporting seat and some support tubes, thereby described some support tubes are connected between two and form the first coupling end and the second coupling end, described the first coupling end telescopically is sticked in to be located in described attaching parts, described the second coupling end convexedly stretches in outside described attaching parts and is fixedly connected with described supporting seat, in described attaching parts, be provided with the assembly that engages with described the first coupling end engagement connection, described some support tubes are provided with engagement piece between any two, stretch position between the fixing described support tube of described engagement piece, when described engaging assembly is operated, distance of stretch out and draw back between described attaching parts and described some support tubes changes, when described engagement piece is operated, the distance of stretch out and draw back between described some support tubes changes,

Wherein, described supporting component comprises the first support tube and the second support tube, in described attaching parts, be fixed with stationary pipes, described the second support tube telescopically is sticked in described stationary pipes, the upper end telescopically of described the first support tube is sticked in described the second support tube, the lower end of described the first support tube convexedly stretches in outside described attaching parts and is fixedly connected with described supporting seat, in described attaching parts, be also provided with locked component, on the sidewall of described the second support tube, offer lock hole, described locked component is also arranged in described lock hole separably through described stationary pipes.

Bracing or strutting arrangement described in 28. claims 27, it is characterized in that, described supporting seat is provided with the adjusting button being connected with described engagement piece, described adjusting button drives described engagement piece to move, described in making between two connected support tube depart from fixing, thereby change the connection location between described support tube.

29. bracing or strutting arrangements as claimed in claim 28, it is characterized in that, also comprise rod assembly, described engagement piece is located in described rod assembly, described adjusting button is connected with described rod assembly and can drives described rod assembly to slide, thereby described rod assembly drives described engagement piece to move.

30. bracing or strutting arrangements as claimed in claim 29, it is characterized in that, described rod assembly has projection, when described rod assembly is during near described engaging assembly, the described projection described engaging assembly of conflicting makes described engaging assembly be operated and depart from described the first coupling end, thereby the connection location between described support tube and described attaching parts changes.