A foldable baby stroller

Abstract

This utility model relates to the field of baby strollers and discloses a foldable baby stroller, including a frame, a push handle, and a seat; a folding mechanism for folding the baby stroller; a locking mechanism for locking the folding mechanism and installed inside the folding mechanism; and a fixing mechanism for fixing the folding mechanism after folding and installed inside the folding mechanism. The folding mechanism includes a fixed frame and a rotating frame. One side of the fixed frame is fixedly connected to the outer wall of the frame, and a rotating block is rotatably connected inside the frame. One side of the rotating frame is fixedly connected to the outer wall of the rotating block. Universal wheels are installed at the bottom of both the fixed frame and the rotating frame. In this utility model, the rotating frame can be rotated, and the retaining ball on the rotating frame can be spring-loaded into slot one or slot two, thus switching the baby stroller's open and folding modes, thereby reducing the space occupied when placing the baby stroller and improving the convenience of placing the baby stroller.

Description

Technical Field

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

[0002] In the rich tapestry of parenting, strollers undoubtedly play a vital role, becoming an indispensable tool for accompanying babies on outings. They not only provide a safe, comfortable, and spacious environment for babies, ensuring they can rest peacefully or curiously observe their surroundings during outings, but also greatly facilitate parents' activities with their children. Whether it's a leisurely walk in the park, a busy shopping trip, or a long-distance visit to relatives and friends, strollers effectively reduce the burden on parents, making outings with babies easier and more convenient, thereby enhancing the entire family's travel experience.

[0003] However, most baby strollers on the market currently lack folding functionality, resulting in them taking up relatively large spaces when stored. Whether for daily family storage or to fit in a car trunk or public transportation storage area, the inability to effectively compress their size often makes the placement process extremely difficult. In some cases, the sheer size of some baby strollers makes it impossible to fit them into narrow spaces, causing great inconvenience to parents during use. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a foldable baby stroller, which aims to improve the problem that existing baby strollers are inconvenient to fold and store, thus making them inconvenient to place.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a foldable baby stroller, including a frame, a push handle, and a seat; a folding mechanism for folding the baby stroller; a locking mechanism for locking the folding mechanism and installed inside the folding mechanism; and a fixing mechanism for fixing the folding mechanism after folding and installed inside the folding mechanism. The folding mechanism includes a fixed frame and a rotating frame. One side of the fixed frame is fixedly connected to the outer wall of the frame. A rotating block is rotatably connected inside the frame. One side of the rotating frame is fixedly connected to the outer wall of the rotating block. Universal wheels are installed at the bottom of both the fixed frame and the rotating frame. A support frame one is rotatably connected to the outer wall of the fixed frame, and a support frame two is rotatably connected to the outer wall of the rotating frame. The support frame one and support frame two are rotatably connected. The locking mechanism includes a locking ball, which is slidably connected inside the rotating frame. A locking groove one and a locking groove two are provided inside the frame. A spring is provided on one side of the locking ball, allowing the locking ball to engage with the locking groove one and the locking groove two.

[0006] Furthermore, the fixing mechanism includes a connecting rod, a first fixing column, and a second fixing column. The first fixing column is fixedly installed on the outer wall of the fixing frame, the second fixing column is fixedly installed on the outer wall of the rotating frame, and one side of the connecting rod is rotatably connected to the outer wall of the fixing frame.

[0007] Furthermore, both the first and second fixed posts can slide into the interior of the connecting rod, and the connecting rod is rotatably connected to a rotating shaft inside.

[0008] Furthermore, a ratchet is fixedly connected to one side of the outer wall of the rotating shaft, and a rotating disk is fixedly connected to the other side of the outer wall of the fixed column.

[0009] Furthermore, multiple stop bars are fixedly connected to the outer wall of the rotating disk.

[0010] Furthermore, a ratchet is rotatably connected inside the connecting rod.

[0011] Furthermore, the pawl engages with the ratchet.

[0012] Furthermore, a handle is fixedly connected to the outer wall of the pawl.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the baby stroller can rotate the rotating frame, and the locking ball on the rotating frame can be locked into the locking slot one or the locking slot two by the spring, so that the opening and folding modes of the baby stroller can be switched, thereby reducing the space occupied when the baby stroller is placed and improving the convenience of placing the baby stroller.

[0015] 2. In this utility model, the fixed post 2 is connected to the connecting rod, so the fixed post 2 can slide into the connecting rod and be locked inside the connecting rod by the stop bar. At the same time, with the cooperation of the ratchet and the pawl, the stop bar can be fixed, thereby fixing the fixed post 2 and improving the stability of the stroller after folding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a foldable baby stroller proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the support structure of a foldable baby stroller proposed in this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the connecting rod of a foldable baby stroller proposed in this utility model.

[0019] Legend:

[0020] 1. Bracket; 2. Push handle; 3. Seat; 4. Fixing frame; 5. Rotating frame; 6. Casters; 7. Support frame one; 8. Support frame two; 9. Connecting rod; 10. Fixing post one; 11. Fixing post two; 12. Slot one; 13. Slot two; 14. Rotating block; 15. Ball bearing; 16. Spring; 17. Pawl; 18. Handle; 19. Ratchet; 20. Rotating shaft; 21. Rotating disc; 22. Stop bar. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a foldable baby stroller, including a support frame 1, a push handle 2, and a seat 3; a folding mechanism for folding the baby stroller; a locking mechanism for locking the folding mechanism and installed inside the folding mechanism; and a fixing mechanism for fixing the folding mechanism after folding and installed inside the folding mechanism. The folding mechanism includes a fixed frame 4 and a rotating frame 5. One side of the fixed frame 4 is fixedly connected to the outer wall of the support frame 1. A rotating block 14 is rotatably connected inside the support frame 1. One side of the rotating frame 5 is fixedly connected to the outer wall of the rotating block 14. Universal wheels 6 are installed at the bottom of both the fixed frame 4 and the rotating frame 5. A support frame 7 is rotatably connected to the outer wall of the fixed frame 4, and a support frame 8 is rotatably connected to the outer wall of the rotating frame 5. The support frame 7 and the support frame 8 are rotatably connected. The locking mechanism includes a locking ball 15, which is slidably connected inside the rotating frame 5. The support frame 1 has a locking groove 12 and a locking groove 13. A spring 16 is provided on one side of the locking ball 15, and the locking ball 15 can be locked into the locking groove 12 and the locking groove 13.

[0023] Specifically, when the stroller needs to be placed, the operator can manually push the rotating frame 5, causing it to rotate within the support 1 using the rotating block 14. When the rotating frame 5 is subjected to external force, the inner wall of the support 1 will push the locking ball 15 accordingly. At this time, the locking ball 15 needs to overcome the elastic force generated by the spring 16 and retract back into the rotating frame 5. In this way, the rotating frame 5 can slide freely inside the support 1. During this process, the spring 16 is compressed, and its stored elastic force will cause the locking ball 15 to be locked into the preset locking slot 12 and locking slot 13.

[0024] After the rotating frame 5 completes its folding action, the locking ball 15 will engage with the inside of the second locking slot 13, ensuring that the rotating frame 5 and the fixed frame 4 can overlap, thus enabling the entire stroller to achieve a compact folded storage state. When the rotating frame 5 needs to be opened for use, the locking ball 15 will automatically engage with the inside of the first locking slot 12, ensuring the stable unfolding of the rotating frame 5. At the same time, the opening action of the rotating frame 5 will cause the first support frame 7 and the second support frame 8 to unfold synchronously. These two support frames will jointly provide stable support for the fixed frame 4 and the rotating frame 5.

[0025] To ensure stability during the folding process of the fixed frame 4 and the rotating frame 5, the operator can rotate the connecting rod 9 on the fixed frame 4 to connect it to the second fixed post 11 on the outer wall of the rotating frame 5. When the second fixed post 11 is inserted into the connecting rod 9, it will further push the internal stop bar 22. The stop bar 22 rotates with the assistance of the rotating disk 21. The rotation of the rotating disk 21 will drive the ratchet 19 to rotate synchronously through the rotating shaft 20. The presence of the pawl 17 restricts the reverse rotation of the ratchet 19, thereby ensuring that the rotating disk 21 and its connected stop bar 22 cannot rotate in the reverse direction. In this way, the stop bar 22 can firmly fix the second fixed post 11 inside the connecting rod 9 to prevent it from slipping out, thus ensuring the stability of the fixed frame 4 and the rotating frame 5 in the folded state.

[0026] When it is necessary to open the connecting rod 9, the operator only needs to press the handle 18 to control the opening of the pawl 17, so that the ratchet 19 is unrestricted and can rotate in the opposite direction with the rotating disk 21, thereby allowing the fixed post 2 11 to slide out of the interior of the connecting rod 9, and completing the opening operation of the connecting rod 9.

[0027] Working principle: When the stroller needs to be placed, the rotating frame 5 can be pushed, causing it to rotate inside the support 1 with the help of the rotating block 14. When the rotating frame 5 is under force, the inner wall of the support 1 pushes the retaining ball 15, causing it to retract into the rotating frame 5 against the force of the spring 16. This allows the rotating frame 5 to slide inside the support 1. The compression force of the spring 16 allows the retaining ball 15 to engage with slot 12 and slot 23. When the rotating frame 5 is folded, the retaining ball 15 engages with slot 23, causing the rotating frame 5 to overlap with the fixed frame 4, allowing the stroller to be folded and stored. When the rotating frame 5 is opened, the retaining ball 15 engages with slot 12. At the same time, opening the rotating frame 5 will cause support frames 17 and 28 to open, thus supporting the fixed frame 4 and the rotating frame 5. When the fixed frame 4 and the rotating frame 5 are folded, to ensure the stability of the folded fixed frame 4 and the rotating frame 5, the fixed frame 4 can be... When the connecting rod 9 rotates, it connects to the fixed post 11 on the outer wall of the rotating frame 5. The fixed post 11 then inserts into the connecting rod 9. After the fixed post 11 enters the connecting rod 9, it pushes the stop rod 22, causing the stop rod 22 to rotate with the help of the rotating disk 21. After the rotating disk 21 rotates, it drives the ratchet 19 to rotate through the rotating shaft 20. The ratchet 19 is restricted by the pawl 17, preventing it from rotating in the opposite direction. Thus, the rotating disk 21 that fixes the stop rod 22 is also unable to rotate in the opposite direction. This prevents the stop rod 22 from fixing the fixed post 11 inside the connecting rod 9 and preventing it from sliding out. The connecting rod 9 and the fixed post 11 cooperate to keep the fixed frame 4 and the rotating frame 5 folded stably. When the connecting rod 9 needs to be opened, the handle 18 can be pressed to open the pawl 17. The ratchet 19 will then lose the restriction of the pawl 17, allowing the ratchet 19 and the rotating disk 21 to rotate in opposite directions, thus allowing the fixed post 11 to slide out of the connecting rod 9.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foldable baby stroller, comprising a frame (1), a push handle (2), and a seat (3), characterized in that: Folding mechanism for folding the stroller; A locking mechanism, used to lock the folding mechanism, is installed inside the folding mechanism; The fixing mechanism is used to fix the folding mechanism after it is folded, and is installed inside the folding mechanism; The folding mechanism includes a fixed frame (4) and a rotating frame (5). One side of the fixed frame (4) is fixedly connected to the outer wall of the support (1). A rotating block (14) is rotatably connected inside the support (1). One side of the rotating frame (5) is fixedly connected to the outer wall of the rotating block (14). Universal wheels (6) are installed at the bottom of both the fixed frame (4) and the rotating frame (5). A support frame one (7) is rotatably connected to the outer wall of the fixed frame (4). A support frame two (8) is rotatably connected to the outer wall of the rotating frame (5). The support frame one (7) and the support frame two (8) are rotatably connected. The locking mechanism includes a locking ball (15), which is slidably connected inside the rotating frame (5). The bracket (1) has a first locking groove (12) and a second locking groove (13) inside. A spring (16) is provided on one side of the locking ball (15), and the locking ball (15) can be locked into the first locking groove (12) and the second locking groove (13).

2. A collapsible pushchair according to claim 1, wherein: The fixing mechanism includes a connecting rod (9), a first fixing column (10) and a second fixing column (11). The first fixing column (10) is fixedly installed on the outer wall of the fixing frame (4), and the second fixing column (11) is fixedly installed on the outer wall of the rotating frame (5). One side of the connecting rod (9) is rotatably connected to the outer wall of the fixing frame (4).

3. A collapsible pushchair according to claim 2, wherein: Both the first fixed post (10) and the second fixed post (11) can slide into the interior of the connecting rod (9), and the connecting rod (9) is rotatably connected to a rotating shaft (20).

4. A collapsible pushchair according to claim 3, wherein: A ratchet (19) is fixedly connected to one side of the outer wall of the rotating shaft (20), and a rotating disk (21) is fixedly connected to the other side of the outer wall of the fixed column (10).

5. A collapsible pushchair according to claim 4, wherein: Multiple stop bars (22) are fixedly connected to the outer wall of the rotating disk (21).

6. The collapsible stroller of claim 3, wherein: The connecting rod (9) is rotatably connected to a pawl (17).

7. A collapsible pushchair according to claim 6, wherein: The pawl (17) engages with the ratchet (19).

8. A collapsible pushchair according to claim 7, wherein: A handle (18) is fixedly connected to the outer wall of the pawl (17).

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