Baby stroller

Abstract

The utility model discloses a child stroller which comprises a stroller frame with an unfolded state and a folded state, the stroller frame comprises a front support, a rear support and a push rod, the rear support is rotatably connected with the front support, and the push rod is rotatably or slidably connected with the front support; a limiting structure is further arranged between the front support and the rear support, the limiting structure comprises a blocking part arranged on the front support, the blocking part is located on a rotating path where the rear support rotates in the direction away from the front support, and when the stroller frame is in the unfolded state, the blocking part abuts against the rear support in a matched mode so as to prevent the rear support from rotating in the direction away from the front support. When the stroller is unfolded from the folded state, the rear support only needs to be rotated in the direction away from the front support till the rear support abuts against the blocking part in a matched mode, and the stroller is convenient to unfold. In addition, the stability of the stroller in the unfolded state is good, and the safety performance of the stroller can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's articles technical field, concretely relates to a children's cart. BACKGROUND

[0002] Children's cart is mainly used when adults carry children to go out. In order to make children's cart convenient to carry and store when not in use, most children's carts can be folded. Children's cart generally includes a cart frame, the cart frame includes a front support and a rear support, and the front support and the rear support are rotationally connected. In the prior art, the relative position between the front support and the rear support is only locked by a locking mechanism, so that the stability of the children's cart in the unfolded use state is relatively poor. Moreover, when the children's cart is unfolded from the folded state, the locking mechanism can be locked only when the rear support is rotated to the unfolded use state. Therefore, when the children's cart is unfolded, the rotation angle of the rear support needs to be controlled to ensure that it is in the unfolded state, which makes the unfolding operation of the children's cart inconvenient. SUMMARY

[0003] The utility model aims at the deficiency in the prior art, and provides a children's cart which is convenient to unfold and has good stability when unfolded.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0005] A children's cart includes a cart frame having an unfolded state and a folded state, the cart frame includes a front support, a rear support and a push rod, the rear support is rotationally connected with the front support, and the push rod is rotationally or slidingly connected with the front support. A limiting structure is further arranged between the front support and the rear support, the limiting structure includes a blocking portion arranged on the front support, the blocking portion is located on the rotation path of the rear support rotating away from the front support, and the blocking portion is in abutting cooperation with the rear support to prevent the rear support from rotating away from the front support when the cart frame is in the unfolded state.

[0006] Preferably, the front support and the rear support are rotationally connected along a first shaft, and the projection of the blocking portion in the vertical direction is located below the first shaft in the unfolded state.

[0007] Further, the front support includes a front support rod and a connecting piece arranged on the front support rod.

[0008] The rear support includes oppositely arranged first and second rear support rods, and the first and second rear support rods are respectively rotationally connected on the opposite sides of the connecting piece.

[0009] The stopper comprises a first stopper arranged on the connecting piece and abutting against the first rear supporting rod and a second stopper abutting against the second rear supporting rod;

[0010] The first stopper and the second stopper extend leftward or rightward from the rear of the connecting piece and outward of the connecting piece, and are integrally formed with the connecting piece.

[0011] Further, the rear support is provided with a clearance corresponding to the position of the stopper, and in the unfolded state, the stopper is located in the clearance, and part of the outer wall of the rear support is located in the same plane as the rear of the connecting piece.

[0012] Further, the first shaft and the stopper are located at opposite ends of the connecting piece, and the first shaft is close to the upper end of the connecting piece, and the stopper is close to the lower end of the connecting piece.

[0013] Further, in the unfolded state, the first shaft and the stopper are located on the upper and lower sides of the front supporting rod, respectively.

[0014] Further, the first rear supporting rod and the second rear supporting rod are symmetrically arranged on both sides of the connecting piece, and in the extension direction of the first rear supporting rod and the second rear supporting rod, the distance between the first rear supporting rod and the second rear supporting rod gradually increases away from the connecting piece.

[0015] The size of the connecting piece gradually increases from top to bottom in the left-right direction, and in the unfolded state, the first rear supporting rod and the second rear supporting rod are respectively attached to the two outer walls of the connecting piece arranged opposite in the left-right direction.

[0016] Preferably, the stroller further comprises a locking mechanism and an unlocking mechanism for unlocking the locking mechanism, the locking mechanism comprises a locking piece arranged on one of the front support and the rear support and a locking slot arranged on the other and matched with the locking piece; the locking piece is movably arranged in a locking position and an unlocking position, in the locking position, the locking piece is positioned in the locking slot, and in the unlocking position, the locking piece is separated from the locking slot;

[0017] The locking piece is rotatably arranged on the front support, and the locking slot is arranged on the rear support;

[0018] The locking mechanism further comprises a resilient piece for driving the locking piece to rotate in the direction of inserting the locking slot, one end of the resilient piece is arranged on the locking piece, and the other end of the resilient piece is arranged on the front support.

[0019] Furthermore, the unlocking mechanism includes a linkage mechanism that cooperates with the push rod and the locking member respectively. When the push rod moves toward the front bracket, the push rod drives the locking member to move through the linkage mechanism to unlock the locking mechanism.

[0020] Furthermore, the linkage mechanism includes a linkage member slidably mounted on the front bracket, the linkage member cooperating with the lower part of the push rod and the locking member respectively; one end of the linkage member abuts against the lower part of the push rod via an inclined surface; the locking member is provided with a mating part, and the other end of the linkage member abuts against the mating part.

[0021] Furthermore, the locking member is also provided with a locking part. When the locking mechanism is in the locked state, the locking part is inserted into the lock groove; when the locking mechanism is in the unlocked state, the locking part is disengaged from the lock groove. The locking part and the mating part are respectively located on opposite sides of the pivot shaft that rotatably connects the locking member and the front bracket on the locking member.

[0022] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: When the stroller of this utility model is unfolded from the folded state, it is only necessary to rotate the rear support away from the front support until the rear support and the stop are engaged, making the unfolding operation of the stroller convenient. Moreover, when the stroller is used in the unfolded state, in addition to locking the relative positions of the front and rear supports through the locking mechanism, the rear support is also limited to rotate away from the front support through the limiting structure. This makes the stroller more stable in the unfolded state and can improve the safety performance of the stroller. Attached Figure Description

[0023] Appendix Figure 1 This is a three-dimensional schematic diagram of the stroller in the unfolded state of Embodiment 1.

[0024] Appendix Figure 2 This is a side view of the stroller in the unfolded state of Embodiment 1.

[0025] Appendix Figure 3 This is a three-dimensional schematic diagram of the stroller in the unfolded state of Embodiment 1 (with the fabric cover removed);

[0026] Appendix Figure 4 This is a side view of the stroller in the unfolded state of Embodiment 1 (with the fabric cover removed);

[0027] Appendix Figure 5 This is a three-dimensional schematic diagram of the stroller in Embodiment 1 during the folding process (with the fabric cover removed);

[0028] Appendix Figure 6Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0029] Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear); Figure 7 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0030] Figure 8 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0031] Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear); Figure 9 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0032] Figure 10 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear); Figure 9 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0033] Figure 11 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear); Figure 10 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0034] Figure 12 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0035] Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear); Figure 13 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0036] Figure 14 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0037] Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear); Figure 15 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0038] Figure 16 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0039] Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear); Figure 17 Fig. 2 is a perspective view of the stroller of Fig. 1 in the unfolded condition (looking from the front to the rear);

[0040] ​​​​​​Wherein: 11, front support; 111, front support rod; 112, connecting piece; 113, blocking part; 113a, matching surface; 12, rear support; 121, first rear support rod; 122, second rear support rod; 123, rear connecting rod; 12a, lock groove; 12b, avoiding space; 13, push rod; 131, first inclined surface; 14, push handle; 141, cross rod; 142, side rod; 15, first shaft; 16, connecting rod; 2, locking piece; 21, locking part; 22, matching part; 3, rotating shaft; 4, elastic piece; 5, linkage; 611, first seat rod; 612, second seat rod; 62, seat plate; 71, pull rope; 72, cloth cover; 81, handrail; 82, sunshade rod; 91, front wheel assembly; 92, rear wheel assembly. DETAILED DESCRIPTION

[0041] The technical scheme of the utility model will be further described below in combination with the drawings and specific embodiments.

[0042] In the following description, the directions such as "front", "rear", "left", "right", "up", "down" and the like are all according to the directions shown in the drawings. Figure 2 In the drawings, the left direction is "front", the right direction is "rear", the up direction is "up" and the down direction is "down". The vertical direction of the drawings is "left" and "right". The above-mentioned directions are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation and be operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0043] Embodiment 1

[0044] As shown in Figures 1-9 , the utility model discloses a child stroller, which comprises a stroller frame having an unfolded state and a folded state, a seat arranged on the stroller frame, a front wheel assembly 91 arranged at the bottom front part of the stroller frame and a rear wheel assembly 92 arranged at the bottom rear part of the stroller frame.

[0045] The stroller frame comprises a front support 11, a rear support 12 and a push rod 13. The front wheel assembly 91 is arranged at the lower part of the front support 11, and the rear wheel assembly 92 is arranged at the lower part of the rear support 12. The upper part of the rear support 12 is rotationally connected with the front support 11 around the first shaft 15. In this embodiment, the lower part of the push rod 13 is slidingly connected with the upper part of the front support 11, so that the push rod 13 can be slidingly arranged relative to the front support 11 along the length extension direction of the front support 11.

[0046] In the embodiment, the front support 11 comprises a front support rod 111 and a connecting piece 112. The front support rod 111 is located at the middle of the child stroller in the left-right direction, and extends upward from front to back when the stroller frame is in the unfolded state, and the front wheel assembly 91 is arranged at the lower part of the front support rod 111. The connecting piece 112 is fixedly arranged on the front support rod 111.

[0047] The rear support 12 comprises a first rear support rod 121 and a second rear support rod 122, which are respectively arranged on the left and right sides of the connecting piece 112, and the upper parts of the first rear support rod 121 and the second rear support rod 122 are respectively rotatably connected to the corresponding side of the connecting piece 112 through the first shaft 15. The rear support 12 further comprises a rear connecting rod 123, the two ends of which are respectively connected to the first rear support rod 121 and the second rear support rod 122.

[0048] Preferably, the first rear support rod 121 and the second rear support rod 122 are symmetrically arranged on the left and right sides of the connecting piece 112. In the extension direction of the first rear support rod 121 and the second rear support rod 122, the distance between the first rear support rod 121 and the second rear support rod 122 gradually increases away from the connecting piece 112, which makes the stability of the child stroller in the unfolded state higher.

[0049] The size of the connecting piece 112 in the left-right direction gradually increases from top to bottom, and in the unfolded state, the first rear support rod 121 and the second rear support rod 122 are respectively attached to the two outer walls of the connecting piece 112 arranged in opposite directions in the left-right direction, so that the structure of the child stroller is compact, and the stability of the child stroller in the unfolded state can also be improved.

[0050] Preferably, the front support rod 111 has a lumen extending along the length direction thereof, and the push rod 13 is slidably arranged in the lumen of the front support rod 111 along the length direction of the lumen. The upper and lower ends of the lumen of the front support rod 111 are both open, so that the upper part of the push rod 13 extends to the outside of the upper part of the lumen, and the lower part of the push rod 13 can be retracted into the lumen or extend to the outside of the lower part of the lumen.

[0051] The push rod 13 can be a single rod or a plurality of rods sequentially connected.

[0052] The upper part of the push rod 13 is fixedly provided with a push handle 14, which comprises a cross rod 141 extending in the left-right direction and side rods 142 respectively extending forward from the left and right ends of the cross rod 141.

[0053] In the embodiment, the front support rod 111 and the push rod 13 are both arc-shaped structures, and when the child stroller is in the unfolded state, most of the push rod 13 extends to the outside of the lumen of the front support rod 111 from the upper end of the lumen, and the push rod 13 and the front support rod 111 extend in the same arc direction, so that the appearance of the child stroller is beautiful, likeFigures 1-4 as shown.

[0054] When the stroller is folded, the push rod 13 slides down and gradually shrinks into the tube cavity of the front support rod 111, and the rear support 12 rotates and gradually approaches the front support 11. The folding process is as shown in Figure 5 and Figure 6 as shown.

[0055] When the stroller is in the folded state, most of the upper part of the push rod 13 shrinks into the tube cavity of the front support rod 111, the rear support 12 approaches the front support rod 111, and the lower part of the push rod 13 extends from the lower part of the tube cavity of the front support rod 111 to the outside of the tube cavity of the front support rod 111. The lower part of the push rod 13 can be supported on the ground together with the front wheel assembly 91 and / or the rear wheel assembly 92, as shown in Figure 7 and Figure 8 as shown, so that the stroller is compact in structure and small in size after being folded, and can also stand on the ground.

[0056] The stroller also includes a limiting structure that limits the rotation of the rear support 12 when the stroller is unfolded from the folded state and the rear support 12 rotates away from the front support 11, thereby limiting the rear support 12 at a position where the stroller is in an unfolded state.

[0057] As shown in Figures 3-8 , the limiting structure includes a blocking portion 113 provided on the front support 11, and the blocking portion 113 is located on the rotation path of the rear support 112 rotating away from the front support 11. When the stroller frame is in the unfolded state, the blocking portion 113 abuts against the rear support 12 to cooperate, thereby blocking the rotation of the rear support 12, so that the rear support 12 cannot continue to rotate away from the front support 11, and the stroller frame is in the unfolded state.

[0058] The first shaft 15 and the blocking portion 113 are respectively located at opposite ends of the connecting piece 112, and the first shaft 15 is close to the upper end of the connecting piece 112, and the blocking portion 113 is close to the lower end of the connecting piece 112. In this way, the distance between the first shaft 15 and the blocking portion 113 is relatively large, which can improve the connection strength between the front support 11 and the rear support 12 when the stroller is in the unfolded state.

[0059] Preferably, when the stroller is in the unfolded state, the first shaft 15 and the blocking portion 113 are respectively located on the upper and lower sides of the front support rod 111.

[0060] Specifically, the blocking portion 113 includes a first blocking portion and a second blocking portion respectively provided on the left and right sides of the connecting piece 112, and the first blocking portion and the second blocking portion respectively extend from the rear of the connecting piece 112 to the left or right side of the connecting piece 112 and to the outside of the connecting piece 112. When the stroller frame is in the unfolded state, the first rear support rod 121 abuts against the first blocking portion, and the second rear support rod 122 abuts against the second blocking portion.

[0061] As shown in Figure 5 and Figure 6 , the blocking part 113 is provided with a matching surface 113a on one side of the rear support 12, which matches the outer contour surface of the rear support 12. When the stroller is in the unfolded state, the matching surface 113a matches the rear support 12, so as to better limit the position of the rear support 12 and make the appearance of the stroller more beautiful.

[0062] Alternatively, a avoiding space can also be provided on the rear support 12, and the blocking part 113 is located in the avoiding space when the stroller is in the unfolded state.

[0063] The stroller further comprises a locking mechanism having a locked state and an unlocked state. When the stroller is in the unfolded state, the locking mechanism is in the locked state, and the relative positions of the front support 11 and the rear support 12 are locked by the locking mechanism, so that the front support 11 and the rear support 12 cannot rotate relative to each other. When the locking mechanism is in the unlocked state, the rear support 12 can be rotated towards the front support 11 to fold the stroller.

[0064] As shown in Figure 10 and Figure 11 , the locking mechanism comprises a locking piece 2 and a locking groove 12a matched with the locking piece 2. The locking piece 2 is rotatably arranged on one of the front support 11 and the rear support 12 about a rotating shaft 3, and the locking groove 12a is arranged on the other one of the front support 11 and the rear support 12. In the embodiment, the locking piece 2 is rotatably arranged on the connecting piece 112 about the rotating shaft 3, and the locking groove 12a is arranged on the rear support 12. When the locking mechanism is in the locked state, the locking piece 2 is partially inserted into the locking groove 12a, so as to limit the positions of the front support 11 and the rear support 12, and make them unable to rotate relative to each other, as shown in Figure 10 and Figure 11 . When the locking mechanism is in the unlocked state, the locking piece 2 is out of the locking groove 12a, and the front support 11 and the rear support 12 can rotate relative to each other.

[0065] Specifically, the locking piece 2 is provided with a locking part 21, which is inserted into the locking groove 12a when the locking mechanism is in the locked state, as shown in Figure 10 and Figure 11 . When the locking mechanism is in the unlocked state, the locking part 21 is out of the locking groove 12a.

[0066] As shown in Figure 10 and Figure 11As shown, the locking mechanism further comprises an elastic member 4, and the elastic force of the elastic member 4 is used to drive the locking member 2 to rotate in the direction of inserting the locking portion 21 into the locking groove 12a. One end of the elastic member 4 is arranged on the locking member 2, and the other end of the elastic member 4 is arranged on the connecting member 112.

[0067] The stroller further comprises a linkage mechanism, and when the stroller is folded, the push rod 13 moves towards the front support rod 11, which can drive the locking mechanism to be unlocked. Thus, when the stroller is folded, the locking mechanism does not need to be operated separately, and the folding operation of the stroller is convenient.

[0068] As shown in Figure 10 and Figure 11 The linkage mechanism comprises a linkage member 5, which is slidably arranged on the connecting member 112 of the front support 11, and the linkage member 5 is matched with the lower part of the push rod 13 and the locking member 2 respectively.

[0069] In this embodiment, the lower part of the push rod 13 is provided with a first inclined surface 131, and one end of the linkage member 5 is provided with a second inclined surface which is matched with the first inclined surface 131. When the stroller is in the unfolded state, the first inclined surface 131 is away from the second inclined surface. When the stroller is folded, the push rod 13 slides downwards, so that the first inclined surface 131 gradually approaches the second inclined surface until the first inclined surface 131 is matched with the second inclined surface. When the first inclined surface 131 is matched with the second inclined surface, the push rod 13 continues to slide, which can drive the linkage member 5 to slide relative to the connecting member 112.

[0070] As shown in Figure 10 and Figure 11 The locking member 2 is further provided with a matching portion 22, and the other end of the linkage member 5 is matched with the matching portion 22. Preferably, the locking portion 21 and the matching portion 22 are respectively located on the opposite sides of the rotating shaft 3 on the locking member 2. When the linkage member 5 slides relative to the connecting member 112 under the drive of the push rod 13, the linkage member 5 acts on the matching portion 22, so that the locking member 2 rotates relative to the connecting member 112 around the rotating shaft 3, thereby making the locking portion 21 out of the locking groove 12a, and the locking mechanism is in the unlocked state.

[0071] In this embodiment, the locking mechanism is arranged on the left and right sides respectively, and the locking mechanisms on the left and right sides are respectively arranged between the first rear support rod 121 and the connecting member 112 and between the second rear support rod 122 and the connecting member 112. Correspondingly, the linkage members 5 are also arranged on the left and right sides respectively, and the lower part of the push rod 13 is provided with the first inclined surface 131 on the left and right sides respectively to match with the linkage member 5 on the corresponding side.

[0072] In this embodiment, the seat comprises a seat frame, which is arranged on the rear support 12 and integrally formed with the rear support 12. In this way, the seat frame and the rear support 12 form an integral structure, so that the structure of the stroller is simple. Moreover, the integral structure formed by the seat frame and the rear support 12 and the front support 11 form a cross structure, and are rotatably connected at the intersection, so that the structure stability of the stroller frame in the unfolded state is good.

[0073] The seat frame comprises first and second seat rods 611 and 612 arranged on opposite sides, the first seat rod 611 extends forward from the upper portion of the first rear support rod 121, and the second seat rod 612 extends forward from the upper portion of the second rear support rod 122, the first seat rod 611 is integrally formed with the first rear support rod 121, and the second seat rod 612 is integrally formed with the second rear support rod 122.

[0074] The first and second seat rods 611 and 612 extend forward while also extending leftward or rightward to the outside of the stroller, so that the distance between the first and second seat rods 611 and 612 on the left and right sides is increased, thereby increasing the seating space for children to sit, so as to improve the comfort of the stroller in use.

[0075] The seat can further comprise a seat plate 62, which is fixedly arranged on the first and second seat rods 611 and 612, as shown in Figure 9 .

[0076] The stroller further comprises a pull rope 71 and a cloth cover 72, the pull rope 71 is arranged between the seat and the push rod 13, and the cloth cover 72 is arranged on the pull rope 71, the cloth cover 72 and the seat form an overall forward opening load bearing space. The support strength of the cloth cover 72 can be improved by supporting the cloth cover 72 through the pull rope 71.

[0077] Specifically, the pull ropes 71 are arranged on the left and right sides, respectively, and the lower portions of the pull ropes 71 on the left and right sides are arranged on the first and second seat rods 611 and 612, respectively. The lower portions of the pull ropes 71 on the left and right sides can also be arranged on the left and right sides of the seat plate 62, respectively. The upper portions of the pull ropes 71 on each side are arranged on the corresponding side rods 142, as shown in Figure 1 and Figure 2 .

[0078] Embodiment 2

[0079] As shown in Figure 12 and Figure 13 , in this embodiment, the lower portion of the push rod 13 is rotatably connected to the upper portion of the front support rod 111, and the rotatable connection between the push rod 13 and the front support rod 111 is located above the connecting piece 112.

[0080] When the stroller is folded, the push rod 13 is rotated forward to approach the front support rod 111. In this embodiment, a linkage mechanism can also be provided between the push rod 13 and the locking mechanism to drive the locking mechanism to unlock when the push rod 13 is rotated relative to the front support rod 111.

[0081] The rest is the same as in Embodiment 1.

[0082] Embodiment 3

[0083] In this embodiment, as shown in Figure 14 , the seat includes a seat plate 62, and the stroller frame further includes a connecting rod 16, the rear part of the seat plate 62 is rotatably connected to the upper part of the front support 11, one end of the connecting rod 16 is movably connected to the upper part of the rear support 12, and the other end of the connecting rod 16 is movably connected to the front part of the seat plate 62.

[0084] Specifically, one end of the connecting rod 16 is rotatably connected to the rear support 12, and the other end of the connecting rod 16 is rotatably connected to the seat plate 62; or one end of the connecting rod 16 is rotatably connected to the rear support 12, and the other end of the connecting rod 16 is slidably connected to the seat plate 62. In this way, a four-bar linkage mechanism or a slider-crank mechanism is formed between the front support 11, the seat plate 62, the connecting rod 16 and the rear support 12, so that the seat plate 62 can be rotated synchronously relative to the front support 11 when the rear support 12 is rotated relative to the front support 11. In this way, during the unfolding or folding operation of the stroller, the rotation of the rear support 12 can be linked to rotate the seat plate 62 relative to the front support 11, without the need for separate operation to rotate the seat plate 62 relative to the front support 11, so that the folding and unfolding operation of the stroller is convenient.

[0085] In this embodiment, the lower parts of the two side pull ropes 71 are arranged on the left and right sides of the seat plate 62, respectively.

[0086] In this embodiment, as shown in Figure 17 , the rear support 12 is provided with a clearance space 12b corresponding to the position of the blocking part 113, when the stroller frame is in the unfolded state, the blocking part 113 is located in the clearance space 12b, and part of the outer wall of the rear support 112 and the rear part of the connecting piece 112 are located in the same plane, which makes the appearance of the stroller neat and beautiful when it is unfolded.

[0087] The rest is the same as in Embodiment 1.

[0088] In the above three embodiments, when the stroller is in the unfolded state, the stroller can further include a handrail 81, as shown in Figure 16 , the handrail 81 can be detachably connected to the cloth cover 72. When the handrail 81 is not needed, it can also be detached from the cloth cover 72, so that the appearance of the stroller is neat and beautiful, and the problem that the connection of the handrail 81 to the cloth cover 72 may affect the use of the stroller can be avoided.

[0089] The handrail 81 is made of hard material, which can prevent children from sliding out of the seat, protect children, and make children sleep when they are tired and sleepy, improve comfort, and make the overall appearance of the stroller better. The handrail 81 is preferably a hard plastic part.

[0090] The cloth cover 72 has oppositely arranged first and second sides, which are respectively located on the left and right sides of the seat, and the two ends of the handrail 81 are respectively detachably arranged on the first and second sides.

[0091] When the stroller is in the unfolded state, the stroller can further include a sunshade rod 82, which is rotatably arranged on the pull rope 71, as shown in Figure 14 and Figure 16 .

[0092] The above examples are only to illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A children's stroller, characterized in that: The trolley frame includes an unfolded state and a folded state. The trolley frame includes a front support, a rear support, and a push rod. The rear support is rotatably connected to the front support, and the push rod is rotatably or slidably connected to the front support. A limiting structure is also provided between the front support and the rear support. The limiting structure includes a stop provided on the front support. The stop is located on the rotation path of the rear support in a direction away from the front support. When the trolley frame is in the unfolded state, the stop abuts against the rear support to prevent the rear support from rotating away from the front support.

2. The stroller according to claim 1, characterized in that: The front bracket and the rear bracket are rotatably connected along the first axis. In the unfolded state, the projection of the stop in the vertical direction is located below the first axis.

3. The stroller according to claim 2, characterized in that: The front support includes a front support rod and a connector disposed on the front support rod; The rear support includes a first rear support rod and a second rear support rod arranged opposite to each other, and the first rear support rod and the second rear support rod are respectively rotatably connected to the opposite sides of the connector; The stop includes a first stop disposed on the connector and abutting against the first rear support rod and a second stop abutting against the second rear support rod; The first stop and the second stop extend from the rear of the connector to the left or to the right and outward from the connector, respectively, and both the first stop and the second stop are integrally formed with the connector.

4. The stroller according to claim 3, characterized in that: A clearance space is provided on the rear support corresponding to the position of the stop. In the unfolded state, the stop is located in the clearance space, and part of the outer wall of the rear support and the rear part of the connector are located in the same plane.

5. The stroller according to claim 3, characterized in that: The first shaft and the stop are located at opposite ends of the connector, with the first shaft near the upper end of the connector and the stop near the lower end of the connector.

6. The stroller according to claim 5, characterized in that: In the unfolded state, the first shaft and the stop are located on the upper and lower sides of the front support rod, respectively.

7. The stroller according to claim 3, characterized in that: The first rear support rod and the second rear support rod are symmetrically arranged on both sides of the connector; in the extending direction of the first rear support rod and the second rear support rod, the distance between the first rear support rod and the second rear support rod gradually increases as they move away from the connector; The dimensions of the connector gradually increase from top to bottom in the left-right direction. In the unfolded state, the first rear support rod and the second rear support rod are respectively attached to the two outer walls of the connector that are set opposite to each other in the left-right direction.

8. The stroller according to claim 1, characterized in that: The stroller also includes a locking mechanism and an unlocking mechanism for unlocking the locking mechanism. The locking mechanism includes a locking member disposed on one of the front support and the rear support, and a locking groove disposed on the other and cooperating with the locking member. The locking member is movably disposed in a locked position and an unlocked position. In the locked position, the locking member is positioned in the locking groove, and in the unlocked position, the locking member is disengaged from the locking groove. The locking element is rotatably mounted on the front bracket, and the locking groove is mounted on the rear bracket; The locking mechanism further includes an elastic element for driving the locking member to rotate in the direction of insertion into the locking groove. One end of the elastic element is disposed on the locking member, and the other end of the elastic element is disposed on the front bracket.

9. The stroller according to claim 8, characterized in that: The unlocking mechanism includes a linkage mechanism that cooperates with the push rod and the locking member respectively. When the push rod moves toward the front bracket, the push rod drives the locking member to move through the linkage mechanism to unlock the locking mechanism.

10. The stroller according to claim 9, characterized in that: The linkage mechanism includes a linkage component that is slidably mounted on the front bracket. The linkage component cooperates with the lower part of the push rod and the locking component respectively. One end of the linkage component abuts against the lower part of the push rod via an inclined surface. The locking component is provided with a mating part, and the other end of the linkage component abuts against the mating part.

11. The stroller according to claim 10, characterized in that: The locking member is also provided with a locking part, which is inserted into the lock groove when the locking mechanism is in the locked state. When the locking mechanism is in the unlocked state, the locking part disengages from the lock groove; the locking part and the mating part are respectively located on opposite sides of the pivot on which the locking part is rotatably connected to the front bracket.

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