A foldable baby stroller

Abstract

This utility model relates to the field of baby strollers, and in particular to a foldable baby stroller, including an unfolding component, comprising a linkage plate, a front support for auxiliary movement on the surface of the linkage plate, a rear support assembly for supporting the rear end between the linkage plate and the front support, and a seat post assembly for placing the seat cushion between the rear support assembly and the linkage plate; an extension component, including two lower push rods fixedly connected to the outer surface of the rear support assembly, with upper push rods slidably connected to the inner walls of the two lower push rods. Through the unfolding component, the folding and unfolding operations of the stroller are achieved by utilizing the linkage plate in cooperation with the track wall. When the user folds the stroller frame, the linkage plate does not have a linkage effect, reducing the number of frictions. When the stroller frame is unfolded, the linkage plate and the track wall provide support and assistance for unfolding, thereby reducing damage to the linkage plate, increasing its service life, and facilitating repeated folding and unfolding operations by the user.

Description

Technical Field

[0001] This utility model relates to the field of baby strollers, and in particular to a foldable baby stroller. Background Technology

[0002] The existing baby stroller is a very common children's product that can carry babies to outdoor activities. It usually consists of a frame and wheels. The frame is mounted on the wheels by support legs. Baby strollers are usually foldable. When unfolded, they can carry the baby during the journey. When folded, they reduce their size and can be easily put into the car body for carrying.

[0003] During use, baby strollers are frequently folded and unfolded, which causes repeated wear and tear on the joint parts. After prolonged use, the parts may become damaged, requiring the stroller to be disassembled and reassembled, a rather complicated process. Utility Model Content

[0004] In view of the problem that the joint parts of strollers are prone to damage after repeated folding and unfolding operations in the above or existing technologies, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: It includes an unfolding component, comprising a linkage piece, the surface of which is provided with a front support for auxiliary movement; a rear support assembly supporting the rear end is provided between the linkage piece and the front support; and a seat post assembly for placing a seat cushion is provided between the rear support assembly and the linkage piece; the extension component includes two downward push rods fixedly connected to the outer surface of the rear support assembly; upper push rods are slidably connected to the inner walls of the two downward push rods; an auxiliary frame is fixedly connected to one end of the two upper push rods away from the downward push rods; and an opening and closing block is slidably connected to the surface of the auxiliary frame.

[0006] As a preferred embodiment of the foldable baby stroller of this utility model, the rear support assembly includes a rear support body mounted on the surface of the front support, a joint is installed at the connection position between the rear support body and the front support, and a track wall is provided on the side of the joint.

[0007] As a preferred embodiment of the foldable baby stroller of this utility model, the seat post assembly includes a seat post body mounted on the surface of the rear support body. The surface of the seat post body is provided with a first docking hole and a second docking hole. An end sleeve is installed on the surface of the first docking hole. The surface of the linkage plate is provided with a first round hole and a second round hole. The first round hole and the hole near the end sleeve are coaxial.

[0008] As a preferred embodiment of the foldable baby stroller of this utility model, the two holes on the joint surface are both double-layered holes, and the holes can perform pre-limiting operations on the installed parts.

[0009] As a preferred embodiment of the foldable baby stroller of this utility model, the linkage piece has a matching contour on the side near the track wall, and the bends of the track wall and the contour surface are both arc surfaces.

[0010] As a preferred embodiment of the foldable baby stroller of this utility model, the auxiliary frame has two protruding handles on its surface, and the surface of the handles is slidably connected with a soft sleeve.

[0011] As a preferred embodiment of the foldable baby stroller of this utility model, the opening and closing block is located in the middle section of the auxiliary block, and the opening and closing block is internally connected to a drive locking tongue.

[0012] The beneficial effects of this foldable baby stroller: 1. By using the unfolding components, the folding and unfolding operations of the trolley are achieved through the cooperation of the linkage plate and the track wall. When the user folds the frame, the linkage plate does not have a linkage effect, reducing the number of frictions. When the frame is unfolded, the linkage plate and the track wall cooperate to provide support and help unfold, thereby reducing the damage to the linkage plate, increasing the service life of the linkage plate, and making it convenient for the user to perform folding and unfolding operations multiple times. 2. By extending the component, the locking tongue is unlocked using the opening and closing block, thereby disengaging the upper push rod from the lower push rod. At this point, it can extend to a certain length and cooperate with the locking tongue to achieve the limit. The auxiliary frame can also help the user to perform folding operations, achieving a quick folding effect. This facilitates the user's pushing during movement and bending assistance during folding. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of a foldable baby stroller.

[0015] Figure 2 For foldable baby strollers Figure 1 A partial disassembly diagram of the main structure.

[0016] Figure 3This is a schematic diagram of the track wall and linkage plate in a foldable baby stroller.

[0017] Figure 4 This is a schematic diagram of the retractable upper push rod structure of a foldable baby stroller.

[0018] Figure 5 This is a schematic diagram of the structure of a foldable baby stroller with the lower push rod bent.

[0019] Figure 6 This is a schematic diagram of the fully folded structure of a foldable baby stroller.

[0020] Figure 7 For foldable baby strollers Figure 6 A schematic diagram of the cross-sectional side structure.

[0021] Figure 8 This is a cross-sectional view of the unfolded lower push rod structure of a foldable baby stroller.

[0022] Figure 9 This is a cross-sectional view of the fully extended lower push rod of a foldable baby stroller.

[0023] Figure 10 This is a cross-sectional view of the upper push rod of a foldable baby stroller when fully extended.

[0024] In the diagram: 10. Linkage plate; 101. First circular hole; 102. Second circular hole; 11. Front support; 12. Rear support assembly; 121. Rear support body; 122. Joint; 123. Track wall; 13. Seat post assembly; 131. Seat post body; 132. First docking hole; 133. Second docking hole; 134. End sleeve; 20. Lower push rod; 21. Upper push rod; 22. Auxiliary frame; 23. Opening / closing block. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Example 1, referring to Figures 1-10 This is the first embodiment of the present invention. This embodiment provides a foldable baby stroller that can reduce the wear and tear of the linkage plate 10 over a long period of time. It includes an unfolding component, including the linkage plate 10. The surface of the linkage plate 10 is provided with a front support 11 for assisting movement. A rear support assembly 12 for supporting the rear end is provided between the linkage plate 10 and the front support 11. A seat post assembly 13 for placing the seat cushion is provided between the rear support assembly 12 and the linkage plate 10.

[0027] Specifically, the front support 11 and the rear support assembly 12 can support the entire component, while the surface of the seat post assembly 13 can be used to place and install a baby carrier for carrying the baby. Furthermore, users can increase the convenience of carrying the baby outdoors by using a stroller, and the linkage plate 10 can work with the rear support assembly 12 to achieve the overall linkage deployment.

[0028] Furthermore, the rear support assembly 12 includes a rear support body 121 mounted on the surface of the front support 11. A joint 122 is installed at the connection position between the rear support body 121 and the front support 11, and a track wall 123 is provided on the side of the joint 122. The seat post assembly 13 includes a seat post body 131 mounted on the surface of the rear support body 121. A first mating hole 132 and a second mating hole 133 are provided on the surface of the seat post body 131. An end sleeve 134 is installed on the surface of the first mating hole 132. A first circular hole 101 and a second circular hole 102 are provided on the surface of the linkage plate 10. The first circular hole 101 and the hole near the end sleeve 134 are coaxial.

[0029] The rear support body 121, the front support 11 and the seat pole body 131 can be unfolded by the cooperation of the track wall 123 on the surface of the joint 122 and the linkage plate 10. After unfolding, the linkage plate 10 is disengaged from the track wall 123, so there is no linkage relationship when the trolley is folded, which reduces the friction damage to the linkage plate 10.

[0030] Preferably, both holes on the surface of joint 122 are double-layered holes, which can pre-limit the installed parts. The side of linkage plate 10 closest to track wall 123 has a matching profile, and the bends of track wall 123 and profile surface are both arc surfaces.

[0031] It should be noted that the double-layer holes can help the parts that need to be connected to enter the external hole position in advance, reduce the movement position, help the holes of the two parts to be in the same position, and improve the stability after installation. The contour of the track wall 123 fits the linkage plate 10, and its arc surface structure can increase the smoothness during the movement.

[0032] When the trolley is folded and needs to be unfolded, the outline of the linkage plate 10 rests against the track wall 123 of the joint 122. At this time, the linkage plate 10 provides support. Furthermore, the user can apply force from the right side to the left side to flip the seat post body 131. With the cooperation of the linkage plate 10, the entire trolley can be unfolded. Figure 7 The state transition is Figure 8 And further fully expanded to Figure 9In this state, the user can place the seat pocket adapted to the seat post body 131 on the surface, allowing the baby to sit inside the seat pocket. The user can then push the stroller to move its position. When the stroller needs to be folded and placed in the trunk of a vehicle, the user needs to limit the rollers on the underside of the rear support body 121. The user then flips the seat post body 131 towards the front support 11. At this point, the linkage plate 10 does not contact the track wall 123 on the surface of the joint 122, preventing pressure wear. When the seat post body 131 and the front support 11 rotate to... Figure 6 The folding operation is complete when the device is in its current state, making it convenient for users to carry.

[0033] Example 2, refer to Figures 1-10 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides an extension component for a foldable baby stroller based on embodiment 1, which solves the problem of no driving parts during the folding process of the stroller. It includes an extension component, which includes two lower push rods 20 fixedly connected to the outer surface of the rear support assembly 12. The inner walls of the two lower push rods 20 are slidably connected to upper push rods 21. The ends of the two upper push rods 21 away from the lower push rods 20 are fixedly connected to an auxiliary frame 22. The surface of the auxiliary frame 22 is slidably connected to an opening and closing block 23.

[0034] Specifically, when the frame is unfolded, the upper push rod 21 can slide to its maximum distance, at which point it is limited and cannot slide any further. When the frame is folded, the upper push rod 21 can retract into the lower push rod 20. At this time, the drive lock tongue does not limit the upper push rod 21. Furthermore, the auxiliary frame 22 can assist in the folding operation of the trolley. The pressure of the upper inclined surface can improve the convenience of rotation and folding.

[0035] Furthermore, the surface of the auxiliary frame 22 has two protruding handles, and the surfaces of the handles are slidably connected to soft sleeves. The opening and closing block 23 is located in the middle section of the auxiliary block, and the internal part of the opening and closing block 23 is connected to a drive lock tongue.

[0036] It should be noted that the handle helps the user to grasp and push the cart, and the soft sleeve increases the comfort during the gripping process. The internal drive lock tongue can limit the upper push rod 21, so that the upper push rod 21 will not slip after it is unfolded, thus improving the stability after unfolding.

[0037] In use, after the user unfolds the seat post body 131 and the rear support body 121, the user can press the opening and closing block 23 to disengage the internal drive latch. At this time, the user can pull the auxiliary frame 22 outward and hold it in the handle position. The auxiliary frame 22 can then drive the upper push rod 21 to slide outward to a certain length. When the opening and closing block 23 is released, it can limit the upper push rod 21, preventing it from sliding further. The unfolded upper push rod 21 helps the user push the upper push rod. When the trolley is being pushed and folded, by holding the opening and closing block 23 to disengage from the upper push rod 21, the upper push rod 21 can be retracted to the bottom of the inner wall of the lower push rod 20. At the same time, the user can hold the handle and exert a clockwise rotation force on the lower push rod 20, the seat rod body 131, and the front bracket 11, which can assist in the folding operation. The drive lock tongue will not limit the upper push rod 21 at this time, and the upper push rod 21 can slide out directly when unfolded, improving the convenience of folding and unfolding.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A foldable stroller, characterized by: The utility model relates to a folding chair, including, The stretching component includes two lower push rods (20) fixedly connected to the outer surface of the rear support assembly (12), the inner walls of the two lower push rods (20) are slidably connected with upper push rods (21), the ends of the two upper push rods (21) away from the lower push rods (20) are fixedly connected with auxiliary frames (22), the surface of the auxiliary frame (22) is slidably connected with opening and closing blocks (23). The rear support assembly (12) includes a rear support main body (121) installed on the surface of the front support (11), a joint (122) is installed at the connecting position of the rear support main body (121) and the front support (11), and a track wall (123) is formed in the side of the joint (122).

2. The foldable stroller of claim 1, wherein: The seat rod assembly (13) includes a seat rod main body (131) installed on the surface of the rear support main body (121), a first butt joint hole (132) and a second butt joint hole (133) are formed in the surface of the seat rod main body (131), an end sleeve (134) is installed on the surface of the first butt joint hole (132), a first circular hole (101) and a second circular hole (102) are formed in the surface of the linkage piece (10), and the first circular hole (101) is coaxially arranged with the hole near the side of the end sleeve (134).

3. The foldable stroller of claim 2, wherein: The two holes in the surface of the joint (122) are double-layer holes, and the holes can pre-limit the installed parts.

4. The foldable stroller of claim 2, wherein: The side of the linkage piece (10) near the track wall (123) has a contour matched with the track wall (123), and the bending parts of the track wall (123) and the contour surface are both circular arc surfaces.

5. The foldable stroller of claim 2, wherein: The surface of the auxiliary frame (22) protrudes two handles, and the surface of the handles is slidably connected with soft sleeves.

6. The foldable stroller of claim 1, wherein: The opening and closing block (23) is arranged at the middle section of the auxiliary block, and a driving lock tongue is connected in the opening and closing block (23).

7. The foldable stroller of claim 1, wherein: ​

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