CN201961351U - Strollers with second seat back reclining mechanism - Google Patents

Abstract

The utility model discloses a perambulator with second seat back inclination guiding mechanism, by the second seat, the perambulator skeleton, a pair of locating lever and an operating parts are constituteed, wherein the second seat passes through pivot seat and perambulator skeleton pivotal connection, be equipped with the guide rail on the perambulator skeleton, the locating lever is connected with the guide rail card hook, the operating parts can apply or remove the card hook of this locating lever and guide rail with the locating lever interlock for the tip of second seat can be followed the guide rail and slided and fix a position, thereby adjust the inclination of this second seat. The second seat is clamped on the baby carriage framework through the guide rail and the positioning hole, so that the second seat can be conveniently detached and the angle between the second seat and the baby carriage framework can be adjusted; 2. the side bracket on the second seat can be conveniently pivoted relative to the rear foot tube on the baby carriage so as to be conveniently folded and unfolded; 3. the buckle mechanism is provided with a blocking piece as a safety mechanism, which can ensure that the release piece can not be pressed to be separated from the pivot seat.

Description

Strollers with second seat back reclining mechanism

technical field

The utility model relates to a baby carriage, in particular to a baby carriage provided with a second seat back inclination angle adjustment mechanism.

Background technique

The stroller is a tool that can be pushed by the caregiver and go out for a walk. The existing stroller can push two babies out for a walk at a time. There are two forms of front and back arrangement, no matter which form, the biggest problem is that it is bulky and complex in structure, difficult to control and reduce manufacturing cost.

U.S. Patent No. 6,045,145 discloses a baby carriage with a detachable auxiliary chair, which is to add a second seat to a single-seat baby carriage frame to become a double-seat baby carriage, although the aforementioned complex and heavy problems can be solved , but its disadvantage is that the auxiliary chair, that is, the second seat, cannot be folded together with the stroller frame, and it will also block the entry and exit route of the first seat when used. The second seat must be removed before getting out of the car. Quite inconvenient. The stroller described in WO28127128 discloses a second seat on the front seat, but the second seat cannot adjust the inclination angle and cannot provide a more comfortable use state for infants; for this reason, Chinese patent ZL200920151372.9 discloses a The baby carriage of the second seat mechanism includes a baby carriage frame and a second seat, and the second seat is detachably connected with the connecting mechanism, and the inclination angle can be adjusted relative to the baby carriage frame through a positioning hole, thereby The utility model can provide the convenience of using the stroller and the convenience of changing the seat upwards, but has the disadvantage that the angle cannot be adjusted continuously and is not convenient enough.

Contents of the invention

The technical problem to be solved by the utility model is to provide a baby carriage provided with a second seat backrest inclination angle adjustment mechanism. A guide rail is provided on the rear leg tube of each baby carriage frame for the lower end of the backrest bracket of the second seat to Among them, slide the positioning to change the inclination angle of the double backrest.

The baby carriage provided with the second seat backrest inclination angle adjustment mechanism described in the utility model includes a baby carriage frame, a first seat and a pair of rear leg tubes, and the pair of rear leg tubes are respectively provided with a pivot seat and a guide rail;

A second seat is provided with a backrest bracket and a pair of side brackets, wherein the pair of side brackets are respectively pivotally connected to both sides of the backrest bracket with their upper ends, and connected to the pivot seat with their lower ends; and the backrest bracket is connected with The lower ends of both sides snap into and slide along the guide rails on the pair of rear tubes;

A pair of positioning rods, which are located at the lower ends of the two sides of the backrest bracket and engage with the guide rail; and an operating part, which is linked with the positioning rods, can release the engagement between the pair of positioning rods and the guide rail, so that the backrest bracket The end of the backrest can be slid along the rail to reposition, thereby adjusting the inclination angle of the backrest support.

In addition, a plurality of positioning holes are provided in the guide rail for the pair of positioning rods to engage with it; a pair of elastic elements respectively apply bias to the pair of positioning rods, so that the pair of positioning rods remain engaged with the guide rail; The operating part is installed on the upper end of the backrest bracket to drive the pair of positioning rods to contact the catch between the pair of positioning rods and the guide rail; the pivot seat is provided with a fastening part for the side bracket to be detachable ground connection, wherein the lower ends of the pair of side brackets are respectively provided with a hook portion to fasten with the fastening portion.

The backrest inclination adjustment mechanism further includes a link connected between the positioning rod and the operating member, so that the operating member can drive the positioning rod from the far end; Outside, a guide block is provided at the lower end to slide in the guide rail, a hook portion is respectively provided at the lower end of the pair of side brackets to fasten with the pivot seat, and a buckle mechanism is respectively provided, wherein the buckle mechanism includes a The clamping block keeps the opening of the hook closed by an elastic element, and a release piece is linked with the clamping block to open the opening of the hook. The clamping block is provided with an inclined surface.

The baby carriage provided with the second seat backrest inclination adjustment mechanism described in the utility model has the following advantages:

1. The second seat can be locked on the rear leg tube through the guide rail and the positioning hole, so that the second seat can be easily disassembled and the angle between it and the rear leg tube can be adjusted;

2. The side bracket is buckled with the pivot seat through the hook, and the pivot seat is fixed on the rear leg tube, so that the side bracket can be conveniently pivoted relative to the rear leg tube for folding and unfolding;

3. There is a blocking plate on the buckle mechanism as a safety mechanism, which can ensure that the release part cannot be pressed and disengaged from the pivot seat.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a second seat installed on a stroller frame;

Fig. 2 is a schematic side view of the second seat installed on the stroller frame;

Fig. 3 is a schematic side view of the second seat and the frame in a detached state;

Fig. 4 is a three-dimensional schematic diagram of the decomposition of the connecting mechanism components described in the present invention;

Fig. 5 is a schematic side view of the second seat in a folded state;

Fig. 6 is a three-dimensional exploded schematic view of the second seat component, the backrest inclination adjustment mechanism and the buckle mechanism components;

Fig. 7 is a schematic diagram of the collapsed state of the skeleton of the utility model;

Fig. 8 is a schematic cross-sectional view of the release action of the buckle mechanism when the safety mechanism of the present invention is in the release position;

Fig. 9 is a schematic cross-sectional view showing the buckling mechanism of the utility model and the pivoting seat hooking state and the safety mechanism being located in the stop range;

Fig. 10 is a schematic diagram of the buckle mechanism releasing the hook of the connecting mechanism when the safety mechanism is in the release position;

Fig. 11 is a schematic diagram of the movement of the side bracket of the second seat detached from the pivot seat of the utility model;

Figure 12 is a schematic cross-sectional view of the guide block of the second seat of the present invention located in the guide rail and the positioning rod and positioning hole of the backrest inclination adjustment mechanism;

Fig. 13 is a schematic diagram of the positioning action of the backrest support at different inclination angles by the second seat backrest inclination adjustment mechanism of the present invention;

Fig. 14 is a three-dimensional schematic diagram of the guide block of the second seat backrest bracket of the present invention being blocked by the stop block of the stop mechanism and detached from the guide rail;

Figure 15 is a three-dimensional schematic diagram of the temporary positioning part where the guide block of the backrest bracket of the second seat is located in the position of the holding groove of the guide seat;

Fig. 16 is an exploded perspective view of the stopper mechanism components of the present invention;

Fig. 17 is a three-dimensional schematic diagram of the stop block of the stop mechanism of the present invention located inside the guide rail;

Figure 18 is a schematic cross-sectional view of the operation action of the stopper mechanism of the present invention;

Fig. 19 is a schematic diagram showing that the stopper mechanism of the present invention releases the restriction on the guide block of the backrest bracket, and then makes the guide block break away from the support guide;

Fig. 20 is a three-dimensional schematic diagram of the safety mechanism of the present invention when the blocking piece is located in the stopper range;

Fig. 21 is a three-dimensional schematic view of the safety mechanism of the second seat of the present invention when it is in the release position.

Description of main components

2: first seat 3: connection mechanism 4: second seat 5: Backrest tilt adjustment mechanism 6: Buckle mechanism 7: stop mechanism 8: security agency 10: stroller skeleton 11: front leg 12: rear tube 13: push rack 14: Linkage frame 17: rear wheel seat 31: pivot seat 32: Support guide 33: Buckle 34: guide seat 35: guide 36: to open 37: positioning hole 38: holding slot 41: backrest bracket 42: side bracket 43: Guide block 44: Pivot seat 45: Hook 46: first transverse fixing rod 47: Second transverse fixing bar 51: Operating parts 52: positioning rod 53: Linkage 54: elastic element 55: Driver 61: block 62: elastic element 63: release piece 64: Linkage 65: Slider 66: Flexure 67: drive unit 68: inclined plane 69: putter 71: stop block 72: elastic element 73: release piece 74: drive bevel 81: Block 82: end 83: Stop range 84: release position 100: status of use 200: folded state 300: Detached state

Detailed ways

As shown in Figures 1 and 2, the baby stroller provided with the second seatback inclination angle adjustment mechanism can be installed on the frame 10 of a general single-seat tricycle and a four-wheel single-seat baby carriage.

The stroller frame 10 as shown in Fig. 1 and Fig. 2 is composed of a first seat 2, a front leg frame 11, a rear leg tube 12, a push frame 13, a moving frame 14, and a folding joint group 15, etc. The components are pivotally connected, and have a deployed state 100 as shown in FIG. 1 and a folded state 200 as shown in FIG. 5 . Wherein the linkage frame 14 is pivotally connected between the front leg frame 11 and the push frame 13, and is used to link the front and rear leg tubes 11/12 and the push frame 13 so that they can be unfolded or moved closer to each other. The first seat 2 can be a seat frame, a car safety seat, a basket or a seat frame made of woven cloth, and is detachably connected by a pair of sockets 16 provided on the stroller frame 10 . The first seat 2 can be reversibly inserted into the socket 16, so the baby on the first seat 2 can be selected to face the pusher or back to the pusher.

Two rear leg pipes 12 of the stroller frame 10 are respectively provided with a connecting mechanism 3 for detachably connecting the second seat 4; The detached state 300 of the second seat 4 shown in FIG. 3 is presented. When in use, only the first seat 2 can be installed, and the second seat 4 can also be installed additionally.

As shown in FIG. 4 , the connecting mechanism 3 includes a pivot base 31 and a supporting guide 32 . Wherein the pivot seat 31 can be fixedly connected to the underside of the rear leg tube 12, and can also be integrally formed with the rear wheel base 17. Furthermore, a buckle 33 can be set on the pivot seat 31, for example, the buckle The portion 33 is implemented as a fixed cross bar for the lower end of the side bracket 42 of the second seat 4 to be fastened with it.

The support guide 32 is fixed on the rear leg tube 12 and includes a guide seat 34 and a guide rail 35. The guide seat 34 is affixed to one end of the support guide 32, and an opening 36 is provided for the lower end of the backrest bracket 41 of the second seat 4 to enter. Or leave the guide rail 35. Furthermore, a retaining groove 38 can be provided in the opening 36 to prevent the lower end of the backrest support 41 from detaching from the guide rail 35 from the opening 36 during use.

The guide rail 35 can be similar to a dovetail groove or can be a T-shaped guide rail, which can slide back and forth between the lower end of the backrest support 41 of the second seat 4 and the guide rail 35. A plurality of positioning holes 37 can be set in the guide rail 35, so that the backrest support 41 can The lower end is selected to be locked and positioned in the guide rail 35 .

The second seat 4 as shown in Figure 3 comprises a backrest support 41, a pair of side supports 42 and a backrest inclination adjustment mechanism 5; The lower ends of both sides are respectively provided with a guide block 43 for sliding in the guide rail 35. Further, the guide block 43 can be a circular protrusion or a roller, so that it can roll back and forth along the guide rail 35 and slide to lower the guide block. 43 and the friction force of guide rail 35.

Furthermore, a first transverse fixed rod 46 as shown in Figure 1 can be set at the lower end of the backrest support 41 to keep the width of the lower end of the backrest support 41 constant, ensuring that the lower end of the backrest support 41 normally slides between the guide rails 35 Inside.

As shown in Fig. 6 and Fig. 9, the upper end of the side bracket 42 can be connected to the middle section of the backrest bracket 41 through a pivot seat 44, and a hook portion 45 can be provided at the lower end to fasten with the fastening portion 33 of the pivot seat 31, Furthermore, a second horizontal fixing bar 47 can be set at the lower ends of the side brackets 42 at both ends to keep the width of the lower ends of the side brackets 42 constant, so that the hooks 45 at the two lower ends can be aligned with the two pivot seats 31 at the same time. The fastening part 33.

The side bracket 42 is provided with a buckle mechanism 6 at the opening of the hook portion 45, including a clamping block 61 and a release member 63, wherein the clamping block 61 is biased by an elastic element 62 to elastically close the hook The opening of the part 45 makes the hook part 45 and the fastening part 33 unable to be separated automatically after hooking up, so that the lower end of the side bracket 42 is connected with the pivot seat 31. Further, the clamping block 61 can be provided with an inclined surface for fastening. When connecting, the clamping block 61 can be pushed away by applying force against the fastening portion 33 by the inclined surface, so that the fastening portion 33 slides over the inclined surface and enters the hook portion 45 .

The release part 63 can be a sliding sleeve 65 provided on the side support 42 for directly driving the block 61, and can also be linked with the block 61 to drive the block 61 through a linking part 64, so that the hook portion of the side support 42 45 can be disengaged from the fastening portion 33 of the pivot seat 31, so as to remove the second seat 4.

The release member 63 shown in Fig. 6, Fig. 9 to Fig. 11 can be a button installed on the end of the side bracket 42, and the linkage 64 can include a flexible part 66 and a driving part 67, wherein the driving part 67 Adjacent to the button, there is an inclined surface 68 for the push rod 69 extending from the button to drive the block 61 through the linkage 64 to release the hooking or buckling of the hook portion 45 to the fastening portion 33 .

The backrest inclination adjustment mechanism 5 shown in Figure 6, Figure 12, and Figure 13 includes an operating part 51, a pair of positioning rods 52, a pair of linkage parts 53 and a pair of elastic elements 54; wherein the positioning rods 52 are mounted on A driving part 55 is installed in the lower end of the backrest bracket 41 along with the driving part 55, and the bias is applied by the elastic element 54, so that one end passes through and protrudes from the guide block 43 and snaps into the positioning hole 37 in the guide rail 35 , so that the lower end of the backrest bracket 41 can be positioned in the guide rail 35 of the rear leg tube 12, thereby fixing the backrest bracket 41 at an optional inclination angle.

The operating part 51 can be arranged on the upper end of the back support 41 near the middle position, and can be braked or pulled by one hand. The linkage 53 can pass through the inside of the backrest bracket 41, and one end is connected to the positioning rod 52 or the driving member 55, and the other end is connected to the operating member 51, so that the operating member 51 can drive the positioning rod 52 away from the positioning hole 37 from the far end. Allow the lower end of the back support 41 to resume sliding back and forth along the guide rail 35.

As shown in Fig. 1, Fig. 2, Fig. 6, Fig. 12 and Fig. 15, when the second seat 4 is to be mounted on the stroller frame 10, the lower end of the side support 42 can be hooked to the pivot seat 31 first, and the The guide block 43 provided at the lower end of the backrest bracket 41 of the second seat 4 snaps into the opening 36 of the guide seat 34, and the positioning rod 52 enters the holding groove 38. Then, the positioning rod 52 is retracted into the guide by using the backrest angle adjustment mechanism 5. block 43, allowing the guide block 43 to enter the guide rail 35 and slide back and forth to adjust the backrest support 41 to an appropriate inclination angle.

When the second seat 4 is in the use state 100, and the angle of inclination of the backrest bracket 41 is to be changed, the operating member 51 can be pulled or pulled to make the positioning rod 52 shrink into the guide block 43 and break away from the positioning hole 37, so that the backrest bracket 41 The lower end of the backrest can slide back and forth along the guide rail 35 to change the inclination angle of the backrest support 41, so as to provide a selection of multiple support angles.

When the lower end of the back support 41 continues to slide along the guide rail 35, the back support 41 continuously increases the inclination angle until it is close to the side support 42, and the second seat 4 will move from the use state 100 to the folded state 200 as shown in FIG. 5 .

As shown in Fig. 3, Fig. 5, Fig. 16, and Fig. 19, in order to prevent the lower end of the backrest bracket 41 from accidentally disengaging from the opening 36 in the folded state 200, a positioning hole 37 closest to the opening 36 and the opening 36 are provided. A stop mechanism 7 is blocked. The stop mechanism 7 may include a stop block 71, an elastic element 72 and a release member 73, wherein the stop block 71 is movably installed between the positioning hole 37 closest to the opening 36 in the guide rail 35 and the opening 36 Between, and keep protruding into the guide rail 35 by the elastic element 72, to stop the guide rail 43 at the lower end of the back support 41 from rushing out of the opening 36 accidentally and breaking away from the guide rail 35.

Furthermore, an inclined surface can be provided on the stop block 71 towards the direction of the outlet 36. When the guide block 43 enters the guide rail 35 from the opening 36, the stop block 71 can be smoothly entered into the guide rail 35 by pressing the inclined surface to shrink the stop block 71. .

The release piece 73 can be provided with a drive bevel 74, and when the release piece 73 is pressed, the stop block 71 is driven by the drive bevel 74, so that it retracts and removes the blocking of the guide block 43, so that the guide block 43 can pass through the opening 36. The guide rail 35 is disengaged, so that the second seat 4 can be detached from the stroller frame 10 .

As shown in Fig. 5, Fig. 8, Fig. 10, Fig. 13, Fig. 20 and Fig. 21, in order to avoid incomplete locking of the second seat 4 caused by improper operation, or to prevent the side bracket 42 from accidentally disengaging from the pivot seat during use 31, a safety mechanism 8 can be established between the second seat 4 and the buckle mechanism 6 to prevent it.

As shown in FIG. 20 , the safety mechanism 8 includes a baffle 81 installed on the backrest bracket 41 , and further, the baffle 81 can be a release mechanism located on the pivot seat 44 adjacent to the buckle mechanism 6 . The position of the piece 63 extends laterally out of the annular piece to form a stop range 83 .

The linkage 64 of the buckle mechanism 6 can be provided with a stop end 82 to be linked with the release piece 63. When the release piece 63 is pressed to drive the linkage 64, the stop end 82 is forced to protrude from the upper end of the side bracket 42; , when the stop end 82 is blocked and cannot protrude from the upper end of the side bracket 42, the release member 63 cannot be pressed.

When the lower end of the backrest bracket 41 slides back and forth in the distribution range of each positioning hole 37, the stopper range 83 of the blocking plate 81 completely covers the stopper end 82, so that it cannot protrude from the upper end of the side bracket 42, thus causing the release member 63 cannot be pressed, so that the second seat 4 is in use, thereby ensuring that the lower end of the side support 42 will not be disengaged from the pivot seat due to the release member 63 being accidentally pressed.

When the back support 41 moves toward one end of the guide rail 35 and moves to the detachable range of the back support 41 through the position of the stop block 71, the second seat 4 will first enter its folded state 200, and the stop end 82 will just break away from it. The stop range 83 of the blocking piece 81 is transferred to a release position 84 that can protrude from the upper end of the side bracket 42. At this time, as long as the release member 63 is pressed, the block 61 can be driven through the linkage 64 to make the side The lower end of the bracket 42 is disengaged from the pivot seat 31 so that the second seat 4 can be removed from the frame 10 of the stroller.

The baby carriage provided with the second seat backrest inclination angle adjustment mechanism described in the utility model is provided with a guide rail on the rear leg tube of the skeleton, and the lower end of the backrest bracket of the second seat can be slid and positioned therein to change the inclination angle of the backrest, which can facilitate Position it accurately and make the occupant ride comfortably.

The above description is a preferred embodiment of the present utility model, but it is not limited thereto. Any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model all belong to the technical solution of the utility model. within range.

Claims (10)

1. A baby carriage provided with a second seat back reclining angle adjustment mechanism, characterized in that it comprises: A stroller frame with a first seat and a pair of rear leg tubes, the pair of rear leg tubes are respectively provided with a pivot seat and a guide rail; A second seat is provided with a backrest bracket and a pair of side brackets, wherein the pair of side brackets are respectively pivotally connected to both sides of the backrest bracket with their upper ends, and connected to the pivot seat with their lower ends; and the backrest bracket is connected with The lower ends of both sides snap into and slide along the guide rails on the pair of rear tubes; a pair of positioning rods, which are arranged at the lower ends of both sides of the backrest bracket to engage with the guide rail; and An operating part is linked with the positioning rod to release the clamping of the pair of positioning rods and the guide rail, so that the end of the backrest bracket can slide along the guide rail for repositioning, thereby adjusting the inclination angle of the backrest bracket. 2 . The stroller provided with the second seat back reclining angle adjustment mechanism according to claim 1 , wherein a plurality of positioning holes are provided in the guide rail for the pair of positioning rods to engage with it. 3 . 3. The baby stroller provided with the second seat back reclining angle adjustment mechanism according to claim 1, characterized in that: said operating member is installed on the upper end of the backrest bracket to drive the pair of positioning rods to contact the pair of positioning rods The catch between the guide rail. 4 . The stroller with the second seat back reclining mechanism according to claim 1 , wherein the pivot seat is provided with a fastening portion for the side bracket to be detachably connected thereto. 5 . The stroller provided with the second seat back reclining angle adjustment mechanism according to claim 4 , wherein a hook portion is respectively provided at the lower ends of the pair of side supports to fasten with the fastening portion. 5 . 6. The baby stroller provided with the second seat back reclining angle adjustment mechanism according to claim 1, wherein the backrest reclining angle adjusting mechanism further includes a linkage member connected between the positioning rod and the operating member, so that The operating member is able to drive the positioning rod from the distal end. 7. According to claim 1, the baby stroller provided with the second seat back reclining angle adjustment mechanism is characterized in that: the pair of backrest brackets can not only wear a woven fabric, but also have a guide block at the lower end to slide in the guide rail . 8. The stroller provided with the second seat back reclining angle adjustment mechanism according to claim 1, wherein a hook portion is respectively provided at the lower ends of the pair of side supports to fasten with the pivot seat, and a There is a buckle mechanism. 9. The stroller provided with the second seat back reclining angle adjustment mechanism according to claim 8, wherein the buckle mechanism comprises: a block, which is held closed by an elastic member to close the opening of the hook; and A release piece is linked with the clamping block to open the opening of the hook. 10. The stroller provided with the second seat back reclining angle adjustment mechanism according to claim 9, characterized in that: said block is provided with an inclined surface.

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