CN110682958A - a baby carriage - Google Patents

Abstract

The invention discloses a baby carriage, comprising: a baby carriage frame and a seat assembly, wherein the baby carriage frame includes a front foot assembly, a rear foot assembly and a handle assembly pivotally connected in sequence; the seat assembly includes a seat plate, a backrest and an armrest pipe; The connecting rod assembly is movably connected between the front foot assembly and the handle assembly, a backrest unlocking mechanism is arranged between the backrest and the seat plate, and a linkage unlocking mechanism is arranged between the armrest tube and the seat plate. During the folding process of the stroller, the backrest is unlocked. The mechanism drives the backrest to separate from the seat plate, and then rotates the backrest toward the seat plate. During this process, the linkage unlocking mechanism promotes the separation of the armrest tube and the seat plate, and then rotates relative to the seat plate, thereby realizing the linkage unlocking of the armrest tube and the backrest. In the process of folding the handle assembly toward the seat plate, the seat plate is folded near the front foot assembly through the connecting rod assembly, thereby realizing the rapid folding of the stroller and improving the convenience of folding and storage of the stroller.

Description

a baby carriage

technical field

The present invention relates to a baby carriage.

Background technique

A general stroller includes a stroller frame and a seat assembly disposed on the stroller frame. The stroller frame includes a front foot assembly, a rear foot assembly and a handle assembly pivotally connected to each other, and the seat assembly includes a seat plate, a backrest and an armrest tube, wherein, The seat plate is connected with the frame of the stroller.

In the process of folding the stroller, each component needs to be folded and stored near the front foot assembly or the rear foot assembly to form a folded state with a small volume. The front foot assembly and the rear foot assembly, the rear foot assembly and the handle assembly, the seat plate and the backrest, and the seat plate and the armrest tube are connected by a set of joint structures, and each set of joint structures is equipped with an unlocking mechanism In order to unlock the two, and then realize the folding, but at present, these unlocking mechanisms are independent of each other, and multiple unlocking and folding operations are required to realize the folding of the stroller frame, seat assembly and the stroller as a whole, resulting in very difficult folding and storage. convenient.

For example, for the seat assembly, the backrest and the armrest tube are both rotatably arranged on the seat panel, and the armrest tube is located between the seat panel and the backrest. When the seat assembly is folded and stored, the armrest tube needs to be unlocked and folded to the vicinity of the seat panel. , and then unlock the backrest separately and fold it near the seat plate, which makes it very inconvenient to fold;

In addition, at present, most of the unlocking mechanisms of the joint structure between the front foot assembly and the rear foot assembly are unlocked by pressing the first clutch block. During the process of folding the stroller frame, the user needs to simultaneously press the two positions on the stroller frame. Only the unlocking button on the side can unlock the front foot assembly and the rear foot assembly, which makes the folding process very inconvenient and affects the convenience of use.

Secondly, at present, the unlocking mechanism of the joint structure between the handle assembly and the rear foot assembly mostly adopts the button unlocking structure. The ordinary button unlocking structure needs to keep pressing the buttons located on both sides of the stroller frame, and then fold the handle assembly to the vicinity of the rear foot assembly. , and then release the button, so that the joint structure between the handle assembly and the rear foot assembly is combined again, resulting in difficult operation and inconvenience.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a stroller that is convenient for the backrest and the armrest to be folded.

The technical scheme adopted by the present invention to solve its technical problems is:

A stroller includes: a stroller frame and a seat assembly, the stroller frame includes a front foot assembly, a rear foot assembly and a handle assembly that are pivoted in sequence through a first pivot shaft; the seat assembly includes: a seat plate, a backrest and a handrail pipe; the seat plate is movably connected between the front foot assembly and the handle assembly through a link assembly, and can be folded near the front foot assembly; the seat plate is provided with a seat plate joint, the seat plate joint a second pivot shaft is arranged on it; a backrest joint is arranged on the backrest, and the backrest joint is rotatably arranged on the seat plate joint through the second pivot shaft; the first clutch member is movably arranged on the second pivot shaft, It is located between the seat plate joint and the backrest joint, and is used to connect or separate the backrest joint and the seat plate joint; the first elastic member is connected with the first clutch member and is used to drive the first clutch member to connect the backrest joint. It is connected with the seat plate joint; the backrest unlocking mechanism is movably arranged on the second pivot shaft, and can drive the first clutch member and the seat plate joint or the first clutch member and the backrest joint to separate, so that the backrest can rotate relative to the seat plate The handrail pipe is provided with a handrail pipe joint, and the handrail pipe joint is rotatably arranged on the second pivot shaft and is located on one side of the backrest joint; the second clutch member is movably arranged on the second pivot shaft, used to connect or separate the handrail pipe joint and the seat plate joint; the second elastic piece is connected with the second clutch piece, and is used to drive the second clutch piece to connect the handrail pipe joint and the seat plate joint; linkage; The unlocking mechanism is arranged between the second clutch member and the backrest joint, and can drive the second clutch member to separate from the seat panel joint, so that the armrest tube can rotate relative to the seat panel.

Preferably, the backrest unlocking mechanism includes a backrest unlocking member rotatably disposed on the second pivot shaft and a rotational driving mechanism connected with the backrest unlocking member, the rotational driving mechanism is used to drive the backrest unlocking member to rotate around the backrest unlocking member. The second pivot is rotated, the backrest unlocking member is located between the first clutch member and the backrest joint, the end face of the backrest unlocking member facing the first clutch member abuts the first clutch member, and the end face of the backrest unlocking member facing the backrest joint and the backrest A first wedge-shaped mechanism capable of driving the first clutch member to approach or move away from the joint of the seat plate is arranged between the joints.

Preferably, the first wedge-shaped mechanism includes at least one first arc-shaped groove formed on the end surface of the backrest unlocking member facing the backrest joint, one end of the first arc-shaped groove is provided with a first stop plane, and the first arc The other end of the groove is provided with a first inclined surface, the end surface of the backrest joint facing the first clutch member is provided with a first drive block matched with the first arc groove, and both ends of the first drive block are respectively provided with a first drive block. There is a second stop plane matched with the first stop plane and a second inclined plane matched with the first inclined plane, and the rotation driving mechanism is used to drive the first stop plane to abut or drive the second stop plane The first inclined plane and the second inclined plane move relatively.

Preferably, the front foot assembly has two front foot joints rotatably arranged at both ends of the first pivot shaft, and the rear foot assembly has two rear foot joints rotatably arranged at both ends of the first pivot shaft, the same A first clutch block is movably arranged between the front foot joint and the rear foot joint on the side, and the first clutch block can be clamped on the front foot joint and/or the rear foot joint; the third elastic member is connected with the first clutch block, It is used to drive the first clutch block to be clamped on the adjacent front foot joint and rear foot joint at the same time; the handle is rotatably arranged on the first pivot; the two linkage rods are in one-to-one correspondence with the two first clutch blocks respectively, One end of the linkage rod is pressed against the adjacent first clutch block, and the other end of the linkage rod is in active contact with the handle; the rotating and pressing mechanism is connected between the handle and the linkage rod, so that the When the handle is rotated upwards, the rotating push mechanism can drive the linkage rod to push the first clutch block, so that the first clutch block is separated from the front foot joint or the rear foot joint, and then the first clutch block is located at the first pivot shaft. The front foot assembly and the rear foot assembly on both sides are folded together.

Preferably, the front foot joint is provided with a guide hole for the telescopic movement of the linkage rod toward the first clutch block, and the rotation and push mechanism includes a push slope provided on the handle and a linkage with the linkage a fourth elastic member connected by a rod, the pushing slope can rotate with the handle and push the linkage rod to move towards the first clutch block, and the fourth elastic member is used to drive the linkage rod away from the first clutch block one end against the push slope.

Preferably, an accommodating groove is formed on the handle, and the end of the linkage rod away from the first clutch block can move in the accommodating groove, the pushing slope is arranged inside the accommodating groove, and the pushing slope is A helical arc surface is formed by spiraling upward around the axis of the first pivot shaft.

Preferably, the handle assembly is provided with a handle joint, a second clutch block is movably arranged between the handle joint and the rear foot joint, and the second clutch block can be clamped on the handle joint and/or the rear foot joint , the handle joint is movably provided with a push piece for driving the second clutch block to separate from the handle joint, the push piece is connected with a fifth elastic piece that drives it to reset, and the first pivot is connected to the push piece There is a push-locking mechanism therebetween, and when the pusher moves axially relative to the first pivot shaft to push the second clutch block, the push-lock mechanism can lock the pusher on the first clutch block. on a pivot; when the pressing member rotates relative to the first pivot, the pressing locking mechanism can unlock and separate the pressing member from the first pivot, so that the handle joint and the rear foot joint can rotate relative to each other.

Preferably, the push-locking mechanism includes an elastic movable piece and a snap portion matching with the elastic movable piece, one of the elastic movable piece and the snap portion is arranged on the first pivot shaft, and the other is arranged on the first pivot shaft. on the pusher.

Preferably, the elastic movable member includes a movable piece telescopically arranged on the circumferential side surface of the first pivot shaft and a compression spring arranged inside the first pivot shaft and connected with the movable piece, and the engaging portion includes a movable piece. On the protruding part on the pushing part, the front side of the protruding part is provided with a fifth guiding inclined surface, and the rear side of the protruding part is provided with a stop surface.

Preferably, the seat assembly further includes a foot tube, the foot tube is rotatably arranged on the seat plate through a rotating arm, and the rotating arm is provided with a plurality of fourth meshing teeth distributed around the circumference of its rotating shaft; the third clutch member, It is movably arranged on the seat plate, and there are a number of fifth meshing teeth that can be engaged with the fourth meshing teeth. The teeth are combined or separated; the sixth elastic part is connected with the third clutch part or the rotating arm, and is used to drive the fourth meshing tooth to combine with the fifth meshing tooth; The upper limit part of the upper swing angle of the rotating arm and the lower limit part used to limit the lower swing angle of the rotating arm; the rotating clutch mechanism is movably connected between the third clutch member and the rotating arm, and can be connected with all The upper limit part is in contact so that the fourth meshing tooth and the fifth meshing tooth are separated and locked along the rotation axis direction of the rotating arm; or the rotating clutch mechanism is in contact with the lower limit part to unlock the fourth meshing tooth and the fifth meshing tooth In the disengaged state, the fourth meshing teeth are combined with the fifth meshing teeth.

The beneficial effects of the present invention are: when the baby carriage with the above structure folds and stores the seat assembly, the backrest unlocking mechanism is used to drive the first clutch member and the seat plate joint or the first clutch member and the backrest joint to separate, and then the backrest is rotated toward the seat plate direction, During this process, the linkage unlocking mechanism between the seat plate joint and the second clutch member promotes the separation of the second clutch member and the seat plate joint, so that the armrest tube can rotate relative to the seat plate, so as to realize the linkage unlocking of the armrest tube and the backrest. Meanwhile, when the handle assembly is folded toward the seat plate, the seat plate is folded near the front foot assembly through the connecting rod assembly, thereby realizing the rapid folding of the stroller and improving the convenience of folding and storage of the stroller.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the schematic diagram of one embodiment of the stroller of the present invention;

Fig. 2 is the appearance schematic diagram of the seat assembly in Fig. 1;

3 is a schematic structural diagram of the first clutch member, the second pivot shaft, the backrest unlocking member, the backrest joint, the second clutch member and the armrest pipe joint of FIG. 2 in a disassembled state;

Fig. 4 is the partial enlarged schematic diagram of A part of Fig. 3;

FIG. 5 is a schematic diagram of another perspective of the overall structure of FIG. 4;

6 is a schematic diagram of the internal structure of the pivot joint of the seat plate, the backrest and the armrest tube of FIG. 2;

7 is a schematic structural diagram of a second pivot;

Fig. 8 is the structural representation of the backrest joint;

Fig. 9 is the structural representation of the backrest unlocking member;

Fig. 10 is the appearance schematic diagram of the stroller frame in Fig. 1;

Figure 11 is a schematic exploded view of the structure of Figure 10 after the handle assembly is removed;

FIG. 12 is a schematic diagram of the internal structure of the interlocking handle, the linkage rod and the rotating pushing mechanism of FIG. 10;

Figure 13 is a schematic structural diagram of the combination of the handle joint, the rear foot joint and the pusher;

FIG. 14 is a schematic exploded view of the structure from another perspective of FIG. 13 ;

FIG. 15 is a schematic diagram of the internal structure of a viewing angle of FIG. 13;

Fig. 16 is a partial enlarged schematic view of part B of Fig. 15;

Figure 17 is a schematic structural diagram of the separation of the movable piece from the first pivot;

Figure 18 is a schematic exploded view of the structure of the joint of the foot tube and the seat plate;

FIG. 19 is a schematic structural diagram of FIG. 18 from another perspective;

Figure 20 is a schematic diagram of the internal structure of the foot tube joint structure when the foot tube is fixed relative to the seat plate;

Figure 21 is a schematic diagram of the internal structure of the foot tube joint structure when the foot tube rotates relative to the seat plate;

FIG. 22 is a schematic structural diagram of the combination of the linkage member and the third clutch member.

Detailed ways

This part will describe the specific embodiments of the present invention in detail, and the preferred embodiments of the present invention are shown in the accompanying drawings. Each technical feature and overall technical solution of the invention should not be construed as limiting the protection scope of the invention.

Referring to FIGS. 1 to 6 , a stroller includes: a stroller frame 100 and a seat assembly 200 , the stroller frame 100 includes a front foot assembly 110 , a rear foot assembly 120 and a handle assembly pivotally connected in sequence through a first pivot 101 130; the seat assembly 200 includes: a seat plate 210, a backrest 220 and an armrest tube 230; the seat plate 210 is movably connected between the front foot assembly 110 and the handle assembly 130 through a link assembly 250, and can be retracted. Stacked near the front foot assembly 110, the connecting rod assembly 250, the handle assembly 130 and the front foot assembly 110 together form a plane four-bar mechanism; the seat plate 210 is provided with a seat plate joint 211, and the seat plate joint 211 is provided with a first Two pivot shafts 201; the backrest 220 is provided with a backrest joint 221, and the backrest joint 221 is rotatably arranged on the seat plate joint 211 through the second pivot shaft 201; the first clutch member 202 is movably arranged on the second pivot shaft The shaft 201 is located between the seat plate joint 211 and the backrest joint 221, and is used to connect or separate the backrest joint 221 and the seat plate joint 211; the first elastic member (not shown in the figure) is connected to the first The clutch member 202 is connected to drive the first clutch member 202 to connect the backrest joint 221 with the seat plate joint 211; the backrest unlocking mechanism, movably arranged on the second pivot shaft 201, can drive the first clutch member 202 to connect with the seat plate joint 211. The seat plate joint 211 or the first clutch member 202 is separated from the backrest joint 221 so that the backrest 220 can rotate relative to the seat plate 210; the armrest tube 230 is provided with a armrest tube joint 231, and the armrest tube joint 231 is rotatably arranged on the The second pivot shaft 201 is located on one side of the backrest joint 221; the second clutch member 203 is movably arranged on the second pivot shaft 201 and is used to connect or separate the armrest tube joint 231 and the seat plate joint 211 The second elastic member is connected with the second clutch member 203 and is used to drive the second clutch member 203 to connect the armrest tube joint 231 with the seat plate joint 211; Between the backrest joints 221 , the second clutch member 203 can be driven to separate from the seat plate joint 211 , so that the armrest tube 230 can rotate relative to the seat plate 210 . In the stroller with the above structure, when the seat assembly 200 is folded and stored, the backrest unlocking mechanism is used to drive the first clutch member 202 and the seat panel joint 211 or the first clutch member 202 and the backrest joint 221 to separate, and then the backrest 220 is rotated toward the seat panel 210. During this process, the linkage unlocking mechanism between the seat plate joint 211 and the second clutch member 203 promotes the separation of the second clutch member 203 from the seat plate joint 211 so that the armrest tube 230 can rotate relative to the seat plate 210, thereby realizing the armrest tube 230. The linkage with the backrest 220 is unlocked, and at the same time, in the process of folding the handle assembly 130 toward the seat plate 210, the seat plate 210 is folded near the front foot assembly 110 through the link assembly 250, and then the handle assembly 130 and the front foot assembly 110 are folded in sequence. It is folded together with the seat assembly 200 near the rear foot assembly 120, thereby realizing the rapid folding of the stroller and improving the convenience of folding and storage of the stroller.

4 and 5 , wherein, the backrest unlocking mechanism includes a backrest unlocking member 204 rotatably disposed on the second pivot shaft 201 and a rotation driving mechanism connected with the backrest unlocking member 204 , and the rotation driving mechanism is used for The backrest unlocking member 204 is driven to rotate around the second pivot shaft 201 , the backrest unlocking member 204 is located between the first clutch member 202 and the backrest joint 221 , and the backrest unlocking member 204 faces the end surface of the first clutch member 202 and the first clutch member 202 . A clutch member 202 is in contact with each other, and a first wedge-shaped mechanism capable of driving the first clutch member 202 toward or away from the seat plate joint 211 is provided between the end surface of the backrest unlocking member 204 facing the backrest joint 221 and the backrest joint 221 . The rotation driving mechanism includes a wire rope connected to the backrest unlocking member 204, and a rotating member connected to the other end of the wire rope is provided on the backrest 220. The rotating member is provided with a torsion spring for resetting. When the rotating member is rotated, the wire rope pulls the backrest unlocking member. 204 rotates relative to the backrest joint 221 , and the first wedge-shaped mechanism forces the backrest unlocking member 204 to push the first clutch member 202 to move toward the seat plate joint 211 , thereby realizing the unlocking between the backrest 220 and the seat plate 210 . The rotation driving mechanism is a common technical means for those skilled in the art, and will not be described in detail here.

4, 5, 8, and 9, preferably, the first wedge-shaped mechanism includes at least one first arc-shaped groove 205 opened on the end surface of the backrest unlocking member 204 toward the backrest joint 221. The first arc-shaped groove One end of the 205 is provided with a first stop plane 2051, the other end of the first arc-shaped groove 205 is provided with a first inclined surface 2052, and the end surface of the backrest joint 221 facing the first clutch member 202 is provided with the first arc-shaped groove. 205 is matched with the first drive block 206, the two ends of the first drive block 206 are respectively provided with a second stop plane 2061 matched with the first stop plane 2051 and a second stop plane 2061 matched with the first inclined plane 2052. Inclined surface 2062, the rotational driving mechanism is used to drive the first stop plane 2051 to abut against the second stop plane 2061 or to drive the first inclined plane 2052 and the second inclined plane 2062 to move relatively.

Preferably, a plurality of first meshing teeth 2021 are distributed around the circumference of the second pivot shaft 201 on the first clutch member 202 , and a plurality of first meshing teeth 2021 are arranged on the seat plate joint 211 for matching with the first meshing teeth 2021 . The tooth slot 2111, the back joint 221 is provided with a plurality of second tooth slots 2211 matched with the first meshing teeth 2021. In the working state, the first meshing teeth 2021 on the first clutch member 202 are in the first elastic member. Under the action of the first tooth slot 2111 and the second tooth slot 2211 at the same time, when the backrest unlocking member 204 rotates, the backrest unlocking member 204 can push the first clutch member 202 to move toward the inner seat plate joint 211, and the first meshing teeth 2021 is separated from the second tooth slot 2211 and only combined with the first tooth slot 2111. One side of the first meshing tooth 2021 is provided with a first locking plane 20211, and the other side of the first meshing tooth 2021 is provided with a first locking plane 20211. A guide inclined surface 20212, the second tooth slot 2211 is provided with a second locking plane 22111 matching with the first locking plane 20211 and a second guiding inclined surface 22112 matching with the first guide inclined plane 20212, the backrest 220 rotates away from the seat plate 210, the second locking plane 22111 abuts against the first locking plane 20211, so that the backrest 220 is fixed relative to the seat plate 210, and when the backrest 220 is close to the seat plate 210 During rotation, the second guide inclined surface 22112 can move relative to the first guide inclined surface 20212 so that the second tooth slot 2211 is combined with another first meshing tooth 2021 , thereby adjusting the angle between the backrest 220 and the seat plate 210 . When the backrest unlocking mechanism does not work, the backrest 220 can only be rotated in a direction close to the seat panel 210 to adjust the angle between the backrest 220 and the seat panel 210 , but cannot be rotated in a direction away from the seat panel 210 to adjust the angle between the backrest 220 and the seat panel 210 . The angle between the seat plates 210 .

Referring to FIGS. 4 and 5 , preferably, the first clutch member 202 is provided with a first arc-shaped limiting groove 2022 whose center is located on the axis of the second pivot shaft 201 , and the backrest joint 221 is provided with The first arc-shaped limit block 2212 matched with the first arc-shaped limit slot 2022, the cooperation of the first arc-shaped limit slot 2022 and the first arc-shaped limit block 2212 is used to limit the backrest in the use state The range of the included angle between 220 and the seat plate 210 .

Referring to FIG. 7 , preferably, a plurality of second meshing teeth 2011 are distributed around the axis of the second pivot shaft 201 , and a plurality of third meshing teeth 2011 are arranged on the second clutch member 203 . The tooth slot 2031, the second elastic member drives the third tooth slot 2031 to engage with the second meshing tooth 2011, referring to FIG. 4 and FIG. 5, the interlocking unlocking mechanism includes the backrest joint 221 facing the second clutch member The first unlocking slope 271 on the end face of the 203, the second clutch member 203 is provided with a second unlocking slope 272 that cooperates with the first unlocking slope 271. When the backrest joint 221 rotates relative to the second clutch member 203, the first unlocking slope 272 is set. An unlocking slope 271 moves upward along the second unlocking slope 272 to separate the third tooth slot 2031 from the second engaging tooth 2011 . Wherein, the outline of the second clutch member 203 is provided with a plurality of third meshing teeth 2033, the handrail tube joint 231 is provided with a fourth tooth slot 2311 matching the third meshing teeth 2033, the third meshing The teeth 2033 can reciprocate along the depth direction of the fourth tooth slot 2311 and keep the third meshing tooth 2033 coupled with the fourth tooth slot 2311. When the linkage unlocking mechanism is not working, the second clutch member 203 acts on the second elastic member Next, using the cooperation between the third tooth slot 2031 and the second meshing tooth 2011, the armrest tube joint 231 is connected to the second pivot shaft 201 through the second clutch 203, and when the backrest joint 221 faces the armrest tube joint 231 When the seat plate 210 is rotated in the direction, the first unlocking slope 271 can be linked with the second unlocking slope 272 to move the second clutch member 203 toward the handrail tube joint 231 , so that the handrail tube joint 231 is disconnected from the second pivot shaft 201 .

5 and 7, preferably, a third locking plane 20111 is provided on one side of the second meshing teeth 2011, and a third guiding slope 20112 is provided on the other side of the second meshing teeth 2011. The tooth slot 2031 is provided with a fourth locking plane 20311 matching the third locking plane 20111 and a fourth guiding inclined plane 20312 matching with the third guiding inclined plane 20112. When the handrail tube 230 rotates toward the seat plate 210, The fourth locking plane 20311 is in contact with the third locking plane 20111. When the armrest tube 230 rotates away from the seat plate 210, the fourth guiding inclined plane 20312 can move upward along the third guiding inclined plane 20112 and make the third tooth slot 2031 Combined with another second meshing tooth 2011 . Further, the angle between the armrest tube 230 and the seat plate 210 is adjusted. When the linkage unlocking mechanism does not work, the armrest tube 230 can only be moved away from the seat because the force on the armrest tube 230 is pushed forward during use. The direction of the plate 210 is rotated to adjust the angle between the armrest tube 230 and the seat plate 210 , and the angle between the armrest tube 230 and the seat plate 210 cannot be adjusted by rotating in a direction close to the seat plate 210 .

Referring to FIG. 5 and FIG. 7 , preferably, the second clutch member 203 is provided with a second arc-shaped limiting groove 2032 whose center is located on the axis of the second pivot shaft 201 , and the second pivot shaft 201 There is a second arc-shaped limit block 2012 matched with the second arc-shaped limit slot 2032, and the cooperation between the second arc-shaped limit slot 2032 and the second arc-shaped limit block 2012 is used to limit the use state The range of the included angle between the lower armrest tube 230 and the seat plate 210 .

Referring to FIGS. 10 to 12 , the front foot assembly 110 has two front foot joints 102 rotatably disposed at both ends of the first pivot shaft 101 , and the rear foot assembly 120 has two front foot joints 102 rotatably disposed on the first pivot shaft 101 , respectively. The rear foot joints 103 at both ends of the shaft 101 are movably provided with a first clutch block 104 between the front foot joint 102 and the rear foot joint 103 on the same side, and the first clutch block 104 can be clamped to the front foot joint 102 and/or the rear foot On the joint 103; the third elastic member 107, connected with the first clutch block 104, is used to drive the first clutch block 104 to be clamped on the adjacent front foot joint 102 and the rear foot joint 103 at the same time; On a pivot 101; two linkage rods 106 correspond to the two first clutch blocks 104 one-to-one, one end of the linkage rod 106 is pressed against the adjacent first clutch block 104, and the other side of the linkage rod 106 One end is in active contact with the handle 105; the push mechanism 108 is rotated to connect between the handle 105 and the linkage rod 106. When the handle 105 is rotated upward, the push mechanism 108 can be rotated to drive the linkage The rod 106 pushes the first clutch block 104 to separate the first clutch block 104 from the front foot joint 102 or the rear foot joint 103 , thereby connecting the front foot assembly 110 and the rear foot assembly 120 on both sides of the first pivot 101 folded together.

11 and 12 , the front foot joint 102 is provided with a guide hole 1021 for the linkage rod 106 to telescopically move toward the first clutch block 104 , and the rotation and pressing mechanism 108 includes a handle provided on the handle The push ramp 1081 on the 105 and the fourth elastic member 1082 connected with the linkage rod 106, the push ramp 1081 can follow the handle 105 to rotate and push the linkage rod 106 to move toward the first clutch block 104, so The fourth elastic member 1082 is used to drive one end of the linkage rod 106 away from the first clutch block 104 to abut on the pushing slope 1081 .

Referring to FIG. 12 , an accommodating groove 1051 is defined on the handle 105 , and the end of the linkage rod 106 away from the first clutch block 104 can move in the accommodating groove 1051 , and the pushing slope 1081 is provided in the accommodating groove 1051 . Inside the accommodating groove 1051, the accommodating groove 1051 has a limiting function to prevent the linkage rod 106 from being completely disengaged from the pushing inclined plane 1081 due to external force. A spiral arc surface, during the upward rotation of the handle 105, the spiral arc surface can push the linkage rod 106 to uniformly feed and move along the axial direction of the pivot shaft 101, thereby improving the movement stability of the linkage rod 106.

The axial direction of the guide hole 1021 is parallel to the pivot shaft 101, so that the pushing direction of the linkage rod 106 is parallel to the axial movement of the clutch block 104, thereby reducing the radial load on the pivot shaft 101 and ensuring that the linkage rod 106 Smoothness of telescopic movement.

Referring to FIGS. 13 and 14 , a handle joint 131 is provided on the handle assembly 130 , and a second clutch block 132 is movably disposed between the handle joint 131 and the rear foot joint 103 , and the second clutch block 132 can be clamped to On the handle joint 131 and/or the rear foot joint 103, a pushing member 133 for driving the second clutch block 132 to separate from the handle joint 131 is movably provided on the handle joint 131, and the pushing member 133 is connected with a pushing member 133 for driving it to reset. The moving fifth elastic member 134, a pushing locking mechanism 135 is provided between the first pivot shaft 101 and the pushing member 133, and the pushing member 133 moves axially relative to the first pivot shaft 101 to push the When the second clutch block 132 is closed, the pushing locking mechanism 135 can lock the pushing member 133 on the first pivot shaft 101; when the pushing member 133 rotates relative to the first pivot shaft 101, the The pushing locking mechanism 135 can unlock and separate the pushing member 133 from the first pivot shaft 101 , so that the handle joint 131 and the rear foot joint 103 can rotate relative to each other.

The above-mentioned key unlocking structure does not need to keep pressing the pressing member 133 to lock the pressing member 133 to unlock the handle joint 131 and the rear foot joint 103 . The handle joint 131 and the rear foot joint 103 are combined again under the action of the second clutch block 132, thereby greatly improving the convenience of storing the stroller and facilitating the operation and use.

14 to 16, in some embodiments of the present invention, the push-locking mechanism 135 includes an elastic movable member 1351 and an engaging portion 1352 matching with the elastic movable member 1351, the elastic movable member 1351 and the card One of the joint portions 1352 is arranged on the first pivot shaft 101 , and the other is arranged on the pushing member 133 . Here, the elastic movable member 1351 is movably arranged on the first pivot shaft 101 , and the engaging portion 1352 is fixedly arranged on the pushing member 133 . In other embodiments, the push-locking mechanism 135 can also be replaced by a combination of a card slot and a snap member, wherein the snap member is provided on the push member 133, and the card slot is opened on the circumference of the first pivot shaft 101 on the side surface.

16, in some embodiments of the present invention, the elastic movable member 1351 includes a movable piece 13511 telescopically arranged on the circumferential side of the first pivot shaft 101 and a movable piece 13511 disposed inside the first pivot shaft 101 and connected to the first pivot shaft 101. The compression spring 13512 connected to the movable piece 13511, the engaging portion 1352 includes a protruding portion provided on the pushing member 133, the front side of the protruding portion is provided with a fifth guiding slope 13521, and the protruding portion is A stop surface 13522 is provided on the rear side. When the pushing member 133 is pressed toward the first pivot shaft 101, the fifth guiding inclined surface 13521 is in contact with the movable piece 13511, the movable piece 13511 is forced to move downward, and then the movable piece 13511 moves to the position opposite to the stop surface 13522. position, the movable piece 13511 moves upward under the action of the compression spring 13512, and under the action of the fifth elastic member 134, the side surface of the movable piece 13511 abuts against the stop surface 13522, thereby locking the pushing piece 133, at this time, the handle The joint 131 and the rear foot joint 103 can rotate relative to each other, and when the handle joint 131 and the rear foot joint 103 rotate relative to a certain angle, the movable piece 13511 is completely separated from the stop surface 13522, and the pushing member 133 and the second clutch block 132 are reset. sports.

Referring to FIG. 16 , in order to enable the movable piece 13511 to enter the stop surface 13522 smoothly, a transition slope 13523 is connected between the upper end surface of the raised portion and the stop surface 13522 to avoid jamming.

As a preferred embodiment of the present invention, a limiting mechanism 136 for limiting the telescopic distance of the movable piece 13511 is provided between the movable piece 13511 and the first pivot shaft 101 . Referring to FIG. 17 , in this embodiment, the limiting mechanism 136 includes an elongated limiting hole 1361 and a limiting post 1362 matching with the limiting hole 1361 , and the limiting hole 1361 is opened in the movable On the plate 13511, the limit post 1362 is arranged on the first pivot shaft 101 and passes through the limit hole 1361. When the movable plate 13511 protrudes outward along the radial direction of the first pivot shaft 101, the limit hole 1361 and the limit The cooperation of the post 1362 can limit the telescopic distance of the movable piece 13511 to ensure the stability of the push locking mechanism 135 .

The seat assembly 200 further includes a foot tube 240, the foot tube 240 is rotatably arranged on the seat plate 210 through a rotating arm 241, and the rotating arm 241 is provided with a plurality of fourth meshing teeth 242 distributed around the circumference of the rotating shaft. ; The third clutch member 243, movably arranged on the seat plate 210, is provided with a number of fifth engagement teeth 244 that can engage with the fourth engagement tooth 242, and the fifth engagement tooth 244 is provided with the fourth engagement tooth The fifth locking plane 2441 abutting against 242, the fifth engaging tooth 244 further includes a sixth guiding inclined plane 2442 connected with the fifth locking plane 2441, and the sixth guiding inclined plane 2442 is connected to two adjacent fifth locking planes 2441 between. Preferably, the part where the fourth meshing tooth 242 abuts against the fifth locking plane 2441 is a plane, so as to improve the stability of the contact between the two, the third clutch member 243 can be telescopically moved along the direction of the rotation axis of the rotating arm 241 to make The fifth meshing tooth 244 is combined with or separated from the fourth meshing tooth 242; the sixth elastic member (not shown in the figure) is connected with the third clutch member 243 or the rotating arm 241, and is used to drive the fourth meshing tooth 242 to The fifth meshing teeth 244 are combined. In this embodiment, the sixth elastic member is a compression spring whose two ends are respectively abutted against the seat assembly 210 and the third clutch member 243. The compression spring can drive the third clutch member 243 toward the The direction of the rotating arm 241 is close, so that the fourth meshing tooth 242 is combined with the fifth meshing tooth 244; the third clutch member 243 is provided with an upper limit portion 245 and The lower limit portion 246 for limiting the swing angle of the rotating arm 241; the rotating clutch mechanism is movably connected between the third clutch member 243 and the rotating arm 241, and can be in contact with the upper limit portion 245 so that the fourth meshing teeth 242 and the fifth meshing teeth 244 are separated and locked along the direction of the rotation axis of the rotating arm 241; or the rotating clutch mechanism contacts the lower limit portion 246 to unlock the fourth meshing teeth 242 and the fifth meshing The disengaged state of the teeth 244 causes the fourth meshing teeth 242 to be coupled with the fifth meshing teeth 244 .

In the use state, the foot tube 240 is pressed down by the leg of the child, and the fourth engaging teeth 242 on the rotating arm 241 abut on the fifth locking plane 2441 so that the rotating arm 241 cannot be opposed to the seat assembly 210 Rotate downward, and at the same time combine with the fifth meshing tooth 244; and when the angle of the foot tube 240 needs to be adjusted, the rotating arm 241 can be driven to rotate and swing up to the upper limit portion 245, and thereafter, the rotating arm 241 is movably connected to rotate The clutch mechanism drives the fourth meshing teeth 242 and the fifth meshing teeth 244 to separate and lock along the direction of the rotation axis of the rotating arm 241. After that, the rotating arm 241 can freely swing down to the lower limit portion 246 so that the fourth meshing teeth 242 and the fifth meshing teeth 242 and The meshing teeth 244 are combined again, so that the foot tube 240 is reset to the lowest position of its swivel angle, and then the foot tube 240 can swing upward again to different angles to adjust the position of the foot tube 240, thereby realizing the angle of the foot tube 240 Adjustment; the pedal tube joint structure of the above structure can realize the angle adjustment of the pedal tube without the need for a separate unlocking structure independent of the pedal tube joint structure, and the adjustment operation is simple and convenient.

As a preferred embodiment of the present invention, the rotary clutch mechanism includes a link member 247 movably arranged on the third clutch member 243 , and the link member 247 can rotate around the rotation axis of the rotary arm 241 and can follow the third clutch member 243 along the The rotating arm 241 moves telescopically in the direction of the axis of rotation. The linkage 247 is provided with an unlocking tooth slot 2471 and a locking tooth slot 2472 located on one side of the unlocking tooth slot 2471 , and the rotating arm 241 is provided with the unlocking tooth slot. 2471 and the locking tooth grooves 2472 are matched with the engaging teeth 248. When the engaging teeth 248 are combined with the locking tooth grooves 2472, the fifth engaging teeth 244 are separated from the fourth engaging teeth 242.

In the working state, the engaging teeth 248 are combined with the unlocking tooth slots 2471, and at the same time, under the action of the elastic element, the fifth engaging teeth 244 and the fourth engaging teeth 242 are combined. When the 240 receives a downward force, the fourth engaging teeth 242 and the fifth locking plane 2441 are in contact with each other through the plane, and the foot tube 240 will not swing downward. When the foot tube 240 needs to adjust the angle upward, it is only necessary to rotate the rotating arm 241 to make the fourth meshing teeth 242 move upward along a sixth guiding inclined surface 2442. At this time, the blocking block 2473 of the linkage member 247 is at the upper position. Between 245 and the lower limit portion 246, it can rotate freely, and the third clutch member 243 is subjected to an inward force to move inward in the axial direction. The fifth locking plane 2441 and the third clutch member 243 move outward in the axial direction under the action of the elastic member, so that the fourth meshing teeth 242 and the fifth meshing teeth 244 re-engage. When the blocking block 2473 of the linking member 247 abuts against the upper limit portion 245, the linking member 247 cannot continue to rotate. When the rotating arm 241 continues to rotate to make the rotating arm 241 swing upward, the coupling teeth 248 are disengaged from the unlocking tooth slots 2471. and enter the locking tooth slot 2472. During this process, the coupling teeth 248 can push the linkage member 247 and the fifth meshing teeth 244 to move inwardly together in the axial direction, so as to realize the locking between the coupling teeth 248 and the linkage member 247, and the fourth The meshing teeth 242 and the fifth meshing teeth 244 are separated, and then the rotating arm 241 can drive the linkage 247 to rotate until the blocking block 2473 abuts against the lower limit portion 246, and then the rotating arm 241 continues to swing downward, combining the teeth 248 with the locking The tooth slot 2472 is separated and enters the unlocking tooth slot 2471. After that, the fourth meshing tooth 242 and the fifth meshing tooth 244 are combined again, and the foot tube 240 on the rotating arm 241 is reset to the lowest position of the hem. After that, the rotation The arm 241 can adjust the swing-up angle of multiple gears along the sixth guide slope 2442 of the plurality of fifth meshing teeth 244 .

Preferably, in some embodiments of the present invention, the locking tooth slot 2472 and the upper end of the unlocking tooth slot 2471 are connected by an arc-shaped transition surface, and the arc-shaped transition surface is beneficial for the coupling teeth 248 to smoothly enter the locking tooth slot 2472 or unlock the cogging 2471.

Wherein, a first intersection formed by the intersection of the fifth locking plane 2441 and the sixth guide slope 2442, the lowest point of the locking tooth slot 2472 protrudes outward from the first intersection.

Preferably, in some embodiments of the present invention, the unlocking tooth slot 2471 is provided with an unlocking slope 24711 with a slope greater than that of the sixth guiding slope 2442, so as to prevent the engaging teeth 248 from entering the locking tooth slot 2472 or unlocking the tooth slot At 2471, an axial jump occurred, affecting the stability of the foot tube joint structure.

Preferably, in some embodiments of the present invention, the linkage member 247 is provided with two sets of opposite unlocking tooth slots 2471 and locking tooth slots 2472, and the rotating arm 241 is provided with two and two sets of unlocking tooth slots 2471 and the locking tooth grooves 2472 have a one-to-one correspondence with the teeth 248, which helps to further improve the stability of the movement.

Preferably, in some embodiments of the present invention, the rotating arm 241 is provided with a third pivot shaft 249 for pivoting on the seat plate assembly 210 , and both the linkage member 247 and the third clutch member 243 are provided with The shaft hole through which the third pivot shaft 249 passes, the coupling teeth 248 are arranged on the cylindrical surface of the third pivot shaft 249 , and a plurality of fourth meshing teeth 242 are distributed around the circumference of the third pivot shaft 249 and surround the coupling teeth 248 Outside, the rotating arm 241 , the third pivot shaft 249 , the coupling teeth 248 and the fourth meshing teeth 242 are integrally formed, which can reduce the cost and time of manufacturing parts.

The above embodiments are only preferred solutions of the present invention, and the present invention may also have other embodiments, such as reasonable combinations of the technical solutions described in the multiple embodiments. Those skilled in the art can also make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope set by the claims of the present application.

Claims (10)

1. A stroller, comprising:

a stroller frame (100) and a seat assembly (200), the stroller frame (100) comprising a front foot assembly (110), a rear foot assembly (120) and a handle assembly (130) pivotally connected in sequence by a first pivot (101); the seat assembly (200) includes: a seat plate (210), a backrest (220) and armrest tubes (230);

the seat board (210) is movably connected between the front foot assembly (110) and the handle assembly (130) through a connecting rod assembly (250) and can be folded near the front foot assembly (110);

the seat board (210) is provided with a seat board joint (211), and the seat board joint (211) is provided with a second pivot (201);

the backrest (220) is provided with a backrest joint (221), and the backrest joint (221) is rotatably arranged on the seat plate joint (211) through the second pivot (201);

the first clutch piece (202) is movably arranged on the second pivot (201), is positioned between the seat plate joint (211) and the backrest joint (221) and is used for connecting or separating the backrest joint (221) and the seat plate joint (211);

the first elastic piece is connected with the first clutch piece (202) and used for driving the first clutch piece (202) to connect the backrest joint (221) with the seat plate joint (211);

the backrest unlocking mechanism is movably arranged on the second pivot (201) and can drive the first clutch piece (202) to be separated from the seat plate joint (211) or the first clutch piece (202) to be separated from the backrest joint (221) so that the backrest (220) can rotate relative to the seat plate (210);

the armrest tube (230) is provided with an armrest tube joint (231), and the armrest tube joint (231) is rotatably arranged on the second pivot (201) and is positioned at one side of the backrest joint (221);

the second clutch piece (203) is movably arranged on the second pivot (201) and is used for connecting or separating the handrail pipe joint (231) with or from the seat plate joint (211);

the second elastic piece is connected with the second clutch piece (203) and used for driving the second clutch piece (203) to connect the handrail tube joint (231) with the seat plate joint (211);

and the linkage unlocking mechanism is arranged between the second clutch piece (203) and the backrest joint (221), and can drive the second clutch piece (203) to be separated from the seat plate joint (211) so that the armrest tube (230) can rotate relative to the seat plate (210).

2. A stroller according to claim 1, wherein:

the backrest unlocking mechanism comprises a backrest unlocking piece (204) and a rotation driving mechanism, the backrest unlocking piece (204) is rotatably arranged on the second pivot (201), the rotation driving mechanism is connected with the backrest unlocking piece (204), the rotation driving mechanism is used for driving the backrest unlocking piece (204) to rotate around the second pivot (201), the backrest unlocking piece (204) is located between the first clutch piece (202) and the backrest joint (221), the end face, facing the first clutch piece (202), of the backrest unlocking piece (204) is abutted against the first clutch piece (202), and a first wedge-shaped mechanism capable of driving the first clutch piece (202) to be close to or far away from the seat plate joint (211) is arranged between the end face, facing the backrest joint (221), of the backrest unlocking piece (204) and the backrest joint (221).

3. A stroller according to claim 2, wherein:

the first wedge-shaped mechanism comprises at least one first arc-shaped groove (205) which is arranged on the end surface of the backrest unlocking piece (204) facing to the backrest joint (221), one end of the first arc-shaped groove (205) is provided with a first stop plane (2051), the other end of the first arc-shaped groove (205) is provided with a first inclined plane (2052), a first driving block (206) matched with the first arc-shaped groove (205) is arranged on the end surface of the backrest joint (221) facing the first clutch piece (202), two ends of the first driving block (206) are respectively provided with a second stop plane (2061) matched with the first stop plane (2051) and a second inclined plane (2062) matched with the first inclined plane (2052), the rotary driving mechanism is used for driving the first stop plane (2051) to abut against the second stop plane (2061) or driving the first inclined plane (2052) and the second inclined plane (2062) to move relatively.

4. A stroller according to claim 1, wherein:

the front foot assembly (110) is provided with two front foot joints (102) which are respectively rotatably arranged at two ends of the first pivot (101), the rear foot assembly (120) is provided with two rear foot joints (103) which are respectively rotatably arranged at two ends of the first pivot (101), a first clutch block (104) is movably arranged between the front foot joint (102) and the rear foot joint (103) on the same side, and the first clutch block (104) can be clamped on the front foot joints (102) and/or the rear foot joints (103);

the third elastic piece (107) is connected with the first clutch block (104) and used for driving the first clutch block (104) to be simultaneously clamped on the front foot joint (102) and the rear foot joint (103) adjacent to the first clutch block;

a carrying handle (105) which is rotatably arranged on the first pivot (101);

the two linkage rods (106) are respectively in one-to-one correspondence with the two first clutch blocks (104), one end of each linkage rod (106) is pressed against the adjacent first clutch block (104), and the other end of each linkage rod (106) is movably abutted against the lifting handle (105);

and the rotating pushing mechanism (108) is coupled between the lifting handle (105) and the linkage rod (106), when the lifting handle (105) rotates upwards, the rotating pushing mechanism (108) can drive the linkage rod (106) to push the first clutch block (104) so as to separate the first clutch block (104) from the front foot joint (102) or the rear foot joint (103), and further fold the front foot assembly (110) and the rear foot assembly (120) which are positioned on two sides of the first pivot (101).

5. A stroller according to claim 4, wherein:

the front foot joint (102) is provided with a guide hole (1021) for the linkage rod (106) to stretch and retract towards the first clutch block (104), the rotating pushing mechanism (108) comprises a pushing inclined plane (1081) arranged on the lifting handle (105) and a fourth elastic piece (1082) connected with the linkage rod (106), the pushing inclined plane (1081) can rotate along with the lifting handle (105) and push the linkage rod (106) to move towards the first clutch block (104), and the fourth elastic piece (1082) is used for driving one end, far away from the first clutch block (104), of the linkage rod (106) to abut against the pushing inclined plane (1081).

6. A stroller according to claim 5, wherein:

an accommodating groove (1051) is formed in the lifting handle (105), one end, far away from the first clutch block (104), of the linkage rod (106) can move in the accommodating groove (1051), the pushing inclined plane (1081) is arranged in the accommodating groove (1051), and the pushing inclined plane (1081) winds the axis of the first pivot (101) and spirals upwards to form a spiral arc surface.

7. A stroller according to claim 1, wherein:

a handle joint (131) is arranged on the handle component (130), a second clutch block (132) is movably arranged between the handle joint (131) and the hind foot joint (103), the second clutch block (132) can be clamped on the handle joint (131) and/or the hind foot joint (103), a pushing piece (133) used for driving the second clutch block (132) to be separated from the handle joint (131) is movably arranged on the handle joint (131), the pushing element (133) is connected with a fifth elastic element (134) for driving the pushing element to reset, a pushing locking mechanism (135) is arranged between the first pivot (101) and the pushing piece (133), when the pushing piece (133) moves axially relative to the first pivot (101) to push the second clutch piece (132), the push lock mechanism (135) is capable of locking a push piece (133) on the first pivot (101); when the pushing piece (133) rotates relative to the first pivot (101), the pushing locking mechanism (135) can unlock and separate the pushing piece (133) and the first pivot (101), so that the handle joint (131) and the rear foot joint (103) can rotate relative to each other.

8. A stroller according to claim 7, wherein:

the push locking mechanism (135) comprises an elastic movable piece (1351) and a clamping part (1352) matched with the elastic movable piece (1351), one of the elastic movable piece (1351) and the clamping part (1352) is arranged on the first pivot shaft (101), and the other one of the elastic movable piece (1351) and the clamping part (1352) is arranged on the push piece (133).

9. A stroller according to claim 8, wherein:

the elastic movable piece (1351) comprises a movable sheet (13511) telescopically arranged on the circumferential side face of the first pivot (101) and a compression spring (13512) which is arranged inside the first pivot (101) and connected with the movable sheet (13511), the clamping portion (1352) comprises a protruding portion arranged on the pushing piece (133), a fifth guide inclined plane (13521) is arranged on the front side of the protruding portion, and a stop surface (13522) is arranged on the rear side of the protruding portion.

10. A stroller according to claim 1, wherein:

the seat assembly (200) further comprises a pedal pipe (240), the pedal pipe (240) is rotatably arranged on the seat plate (210) through a rotating arm (241), and a plurality of fourth meshing teeth (242) distributed around the circumference of the rotating shaft of the rotating arm (241) are arranged on the rotating arm (241); the third clutch member (243) is movably arranged on the seat plate (210) and is provided with a plurality of fifth meshing teeth (244) which can be meshed with the fourth meshing teeth (242), and the third clutch member (243) can move telescopically along the rotating shaft direction of the rotating arm (241) so that the fifth meshing teeth (244) are combined with or separated from the fourth meshing teeth (242); a sixth elastic member connected to the third clutch member 243 or the rotating arm 241 for urging the fourth engaging tooth 242 to be engaged with the fifth engaging tooth 244; the third clutch member (243) is provided with an upper limit part (245) for limiting the swing-up angle of the rotating arm (241) and a lower limit part (246) for limiting the swing-down angle of the rotating arm (241); a rotating clutch mechanism movably coupled between the third clutch member (243) and the rotating arm (241) and contactable with the upper positioning portion (245) to separate and lock the fourth engaging tooth (242) and the fifth engaging tooth (244) in a direction of a rotation shaft of the rotating arm (241); or the rotating clutch mechanism is contacted with the lower limit part (246) to unlock the separated state of the fourth meshing teeth (242) and the fifth meshing teeth (244) so as to enable the fourth meshing teeth (242) and the fifth meshing teeth (244) to be combined.

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