Folding structure of baby carriage frame

Abstract

The utility model discloses a folding structure of a baby carriage frame. Comprising a bicycle folding pull handle, a stay wire body, a stay wire head resistor body, a stay wire spring, a T-shaped stay wire resistor body, a damping rod folding iron sheet, a bicycle folding clamp guide groove, a bicycle folding clamp T-shaped stay wire resistor fixing position, a guide groove protrusion, a bicycle folding spring, a bicycle folding clamp body, a damping rod fixing rubber piece, a guide groove clamping groove, a bicycle folding clamp clamping groove, a basket folding iron sheet, a rear foot U-shaped pipe and a basket pipe. A triangular supporting structure is adopted, the baby carriage can be more stable when being pushed, the phenomena of shaking and instability are effectively reduced, safer and more comfortable riding experience is provided for children, and the iron pipe is ingeniously additionally arranged below the baby carriage folding clamp for supporting so as to solve the problem that the stress of the baby carriage folding clamp part in a traditional baby carriage is weak. The strength of stress points is increased, the weight pressure from a vehicle body and a riding child is effectively dispersed, and the overall bearing capacity and stability of the frame are further improved.

Description

Technical Field

[0001] This utility model relates to the field of children's vehicle frame technology, and in particular to a folding structure for children's vehicle frames. Background Technology

[0002] A stroller is a means of transportation for children, used to push them on the street, shopping, or for walks. The stroller frame is the supporting structure of the stroller, which supports components such as the seat and tires, and directly affects the stroller's performance and safety.

[0003] Currently, some children's stroller frames on the market still have room for improvement in terms of stability when used, especially during dynamic movement, where they may experience some degree of swaying or instability. This is mainly due to some limitations in the frame structure design, particularly the folding clip area, which often becomes the weakest point in the entire structure after the frame is unfolded. This area not only has to bear the weight of the frame itself but also has to cope with various dynamic loads generated by the child while riding, so its stress state and durability are particularly important. Utility Model Content

[0004] The purpose of this invention is to provide a folding structure for a children's stroller frame to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a folding structure for a children's stroller frame, including a push handle assembly, a seat interface fixedly connected to the push handle assembly, an upper shock absorber shell rotatably connected to the seat interface, a shock absorber tube sleeved on the upper shock absorber shell, a shock absorber fixing rubber piece sleeved at the other end of the shock absorber tube, a foot tube and a rear foot U-shaped tube fixedly connected to the shock absorber fixing rubber piece, a shock absorber spring, an embedded upper shock absorber inner sleeve and a folding clip guide groove are provided inside the shock absorber tube, and a folding clip spring and a folding clip body are provided inside the folding clip guide groove.

[0006] As a further technical solution of this utility model, a pull cable body is provided in the seat interface, a pull cable head resisting body is provided at one end of the pull cable body, and a pull cable spring, a T-shaped pull cable resisting body and a pull cable tail resisting body are provided at the other end of the pull cable body. A pull cable retaining groove is provided in the push handle assembly, and the pull cable spring is engaged with the pull cable retaining groove, the seat interface and the embedded shock-absorbing inner sleeve.

[0007] As a further technical solution of this utility model, a retractable handle is sleeved on the push handle assembly, and a cable head stop limiter is provided on the retractable handle, and the cable head stop limiter is engaged with the cable head stop body.

[0008] As a further technical solution of this utility model, one end of the vehicle return card guide groove is provided with a vehicle return card T-shaped pull wire stop fixing point, and the other end of the vehicle return card guide groove is provided with a guide groove protrusion, and the vehicle return card T-shaped pull wire stop fixing point is engaged with the T-shaped pull wire stop body.

[0009] As a further technical solution of this utility model, one end of the vehicle return card body is provided with a pull wire tail stop fixing point, and the other end of the vehicle return card body is provided with a vehicle return card locking point. The pull wire tail stop fixing point is locked onto the pull wire tail stop body. The shock absorber fixing rubber part is provided with a guide groove and a vehicle return card slot, and the vehicle return card locking point is locked into the vehicle return card slot.

[0010] As a further technical solution of this utility model, the shock-absorbing tube is rotatably connected to a shock-absorbing rod folding iron sheet and a vegetable basket folding iron sheet. The other end of the shock-absorbing rod folding iron sheet is rotatably connected to the outer wall of one side of the shock-absorbing rod fixing rubber part, and the other end of the vegetable basket folding iron sheet is rotatably connected to a vegetable basket tube.

[0011] As a further technical solution of this utility model, the upper shock absorber rod housing is fitted with bolts, and the bolts are fitted onto the shock absorber tube and the embedded upper shock absorber inner sleeve.

[0012] As a further technical solution of this utility model, a front cover is fixedly connected to one side of the outer wall of the seat interface, and a rear cover is fixedly connected to the other side of the outer wall of the seat interface.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model adopts a triangular support structure, which makes the vehicle more stable when pushed, effectively reducing shaking and instability, and providing children with a safer and more comfortable riding experience. Addressing the problem of weak stress on the folding bracket in traditional children's vehicles, an iron pipe support is cleverly added below the folding bracket. This not only increases the strength of the stress point but also effectively distributes the weight pressure from the vehicle body and the child, further improving the overall load-bearing capacity and stability of the frame. Furthermore, the U-shaped tube at the rear foot is placed directly above the folding bracket, significantly enhancing the stability of the vehicle after unfolding. The U-shaped tube design not only increases the rigidity of the frame but also provides additional support and protection for the folding bracket area through its unique shape and position, effectively preventing structural damage or deformation caused by uneven stress or accidental impact. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is an exploded view of the structure of this utility model;

[0016] Figure 2This is a three-dimensional structural diagram of the retractable handle, cable slot strip, and cable body of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the vehicle receiving card guide groove, vehicle receiving card body, and shock absorber rod fixing rubber parts of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the draw wire body of this utility model;

[0019] Figure 5 for Figure 4 Enlarged structural diagram of region A in the middle;

[0020] Figure 6 for Figure 4 A magnified structural diagram of region B in the middle;

[0021] Figure 7 This is a side view sectional view of the structure of the present invention in its unfolded state;

[0022] Figure 8 for Figure 7 Enlarged cross-sectional view of the C region under locked conditions;

[0023] Figure 9 for Figure 7 Enlarged cross-sectional view of the C region in the unlocked state;

[0024] Figure 10 This is a side view of the structure of the present invention in a semi-folded state;

[0025] Figure 11 This is a side view of the structure of the present invention in its folded state;

[0026] Figure 12 This is a side view sectional view of the structure of the present invention in its unfolded state;

[0027] Figure 13 This is a side view sectional diagram of the present invention in its folded state;

[0028] Figure 14 This is a partial side view sectional diagram of the present invention;

[0029] Figure 15 This is a partial cross-sectional view of the structure of this utility model before shock absorption;

[0030] Figure 16 This is a schematic diagram of a partial cross-sectional structure of the present invention after shock absorption.

[0031] In the diagram: 1. Retractable handle; 101. Cable end retainer; 2. Cable retainer groove; 3. Seat interface; 4. Cable body; 401. Cable end retainer; 402. Cable spring; 403. T-shaped cable retainer; 404. Cable end retainer; 5. Push handle assembly; 6. Interface front cover; 7. Interface rear cover; 8. Upper shock absorber housing; 9. Bolt; 10. Shock absorber tube; 11. Shock absorber spring; 12. Embedded upper shock absorber inner sleeve; 13. 14. Shock absorber folding sheet; 1401. Car retrieval card guide groove; 1402. Car retrieval card T-shaped pull cable stop fixing point; 15. Guide groove protrusion; 16. Car retrieval spring; 17. Car retrieval card body; 1801. Pull cable tail stop fixing point; 19. Car retrieval card locking position; 10. Foot tube; 11. Shock absorber fixing rubber parts; 12. Guide groove slot; 13. Car retrieval card slot; 14. Vegetable basket folding sheet; 25. Rear foot U-shaped tube; 26. Vegetable basket tube. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] Please see the appendix Figure 1 - Appendix Figure 16This utility model provides an embodiment of a folding structure for a children's stroller frame, including a push handle assembly 5. A seat interface 3 is fixedly connected to the push handle assembly 5. An upper shock absorber housing 8 is rotatably connected to the seat interface 3. A shock absorber tube 10 is sleeved on the upper shock absorber housing 8. A shock absorber fixing rubber part 18 is sleeved on the other end of the shock absorber tube 10. A foot tube 17 and a rear foot U-shaped tube 20 are fixedly connected to the shock absorber fixing rubber part 18. A shock absorber spring 11, an embedded upper shock absorber inner sleeve 12, and a folding clip guide groove 14 are provided inside the shock absorber tube 10. A folding clip spring 15 and a folding clip body 16 are provided inside the folding clip guide groove 14. A pull cable body 4 is provided inside the seat interface 3. A pull cable head resist body 401 is provided at one end of the pull cable body 4, and a pull cable head resist body 401 is provided at the other end of the pull cable body 4. The push handle assembly 5 includes a pull spring 402, a T-shaped pull cable stop body 403, and a pull cable tail stop body 404. A pull cable slot strip 2 is provided inside the push handle assembly 5, and the pull spring 402 is engaged with the pull cable slot strip 2, the seat interface 3, and the embedded shock-absorbing inner sleeve 12. The pull cable body 4 is used for the transmission components to perform folding operations. A folding handle 1 is sleeved on the push handle assembly 5, and a pull cable head stop limiting clip 101 is provided on the folding handle 1. The pull cable head stop limiting clip 101 is engaged with the pull cable head stop body 401, and the pull cable head stop limiting clip 101 is used to fix the pull cable head stop body 401. One end of the folding guide groove 14 has a folding T-shaped pull cable stop fixing point 1401, and the other end of the folding guide groove 14 has a guide groove protrusion 1402. 1401 is snapped onto the T-shaped pull cord stop body 403, and the T-shaped pull cord stop fixing part 1401 of the take-up card is used to fix the T-shaped pull cord stop body 403; one end of the take-up card body 16 has a pull cord tail stop fixing part 1601, and the other end of the take-up card body 16 has a take-up card locking part 1602, and the pull cord tail stop fixing part 1601 is snapped onto the pull cord tail stop body 404; the shock absorber fixing rubber part 18 has a guide groove locking groove 1801 and a take-up card locking groove 1802, and the take-up card locking part 1602 is snapped into the take-up card locking groove 1802; the pull cord tail stop fixing part 1601 is used to fix the pull cord tail stop body 404, and the take-up card locking groove 1802 is used to fix the take-up card locking part 1602; a shock absorber is rotatably connected to the shock absorber tube 10. The shock absorber rod folding iron plate 13 and the vegetable basket folding iron plate 19 are rotatably connected at one end to the outer wall of the shock absorber rod fixing rubber part 18. The other end of the vegetable basket folding iron plate 19 is rotatably connected to the vegetable basket tube 21. The shock absorber rod folding iron plate 13 and the vegetable basket folding iron plate 19 are used to fold the shock absorber tube 10 and the vegetable basket tube 21. A bolt 9 is sleeved on the upper shock absorber rod housing 8, and the bolt 9 is sleeved on the shock absorber tube 10 and the embedded upper shock absorber inner sleeve 12. The bolt 9 is used to connect the upper shock absorber rod housing 8, the shock absorber tube 10 and the embedded upper shock absorber inner sleeve 12. A front cover 6 is fixedly connected to one side of the outer wall of the seat interface 3, and a rear cover 7 is fixedly connected to the other side of the outer wall of the seat interface 3. The front cover 6 and the rear cover 7 are used to protect the seat interface 3.

[0034] Working principle: When using this utility model, the user gently pulls the retractable handle 1 upwards at an angle. The retractable handle 1 is connected to and drives the cable body 4 through its built-in cable head stop limiter 101. The other end of the cable body 4 is pulled upwards by the cable tail stopper 404 to move the retractable card body 16. During this process, the retractable spring 15 naturally contracts in response to the upward movement of the retractable card body 16, thus releasing and preparing the spring's stored energy. Then, as the retractable card body 16 moves upwards, the retractable card slot 1602, which was originally embedded in the retractable card slot 1802, disengages, and the frame unlocks. At this time, the push handle assembly 5 can be further pressed down, causing the retractable card slot 1602 to slide smoothly out along the guide groove on the surface of the shock absorber fixing rubber part 18. At the same time, the push handle assembly 5... The downward pressure of assembly 5 generates an additional torque, forcing the shock absorber tube 10 to rotate gracefully clockwise around its axis. This rotation of the shock absorber tube 10 simultaneously drives the closely connected shock absorber rod folding plate 13 to rotate in coordination. The shock absorber rod folding plate 13 drives the basket folding plate 19 to rotate clockwise, and the basket folding plate 19 drives the basket tube 21 to rotate downward, completing the frame folding. When unfolding the frame, lifting the push handle assembly 5 causes it to rotate. The upper shock absorber rod housing 8, shock absorber tube 10, shock absorber rod folding plate 13, basket folding plate 19, and basket tube 21 rotate counterclockwise as the push handle assembly 5 is lifted, in the opposite direction to when the frame is unfolded. When the frame unfolding clamp body 16 follows the guide groove on the shock absorber rod fixing rubber part 18 under the elastic force of the frame unfolding spring 15... When the spring slides into the take-up card slot 1802, and the guide protrusion 1402 on the take-up card guide groove 14 also engages with the guide groove slot 1801, the frame unfolding function is realized. When the frame is fully unfolded, the take-up card guide groove 14 and the take-up card body 16 are exactly above the rear foot U-shaped tube 20 on the foot tube 17, making the frame structure more stable. The main working principle of the shock absorber is the connecting bolt 9 fixed on the upper shock absorber rod housing 8. At the same time, the bolt 9 is connected to the shock absorber tube 10 through a long slot sliding hole set on the shock absorber tube 10. The upper end of the shock absorber spring 11 abuts against the upper shock absorber rod housing 8, and the lower end abuts against the embedded upper shock absorber inner sleeve 12 that is fixedly embedded in the shock absorber tube 10. When the upper shock absorber rod housing 8 is pressed down, it directly squeezes the inner sleeve 12 placed in the upper shock absorber housing 8. The shock-absorbing spring 11 between the upper shock absorber rod housing 8 and the shock absorber tube 10 contracts, causing the connecting bolt 9 fixed on the upper shock absorber rod housing 8 to slide up and down along the long slot on the shock absorber tube 10, moving the upper shock absorber rod housing 8 away from or close to the shock absorber tube 10, thus achieving a shock absorption effect and realizing the seat shock absorption function. The interface front cover 6 and interface rear cover 7 are used to protect the seat interface 3. The cable tail stop fixing point 1601 is used to fix the cable tail stop body 404. The T-shaped cable stop fixing point 1401 is used to fix the T-shaped cable stop body 403. The cable stop groove strip 2 ensures that the cable body 4 maintains a stable path and tension during frame folding and unfolding, thereby preventing the cable from loosening or falling off and improving the stability and safety of the frame structure.The pull head stop limiter 101 is used to fix the pull head stop body 401, and the pull spring 402 is used to provide tension and restoring force, helping the pull system to coordinate with other components and return to the initial state.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A folding structure of a stroller frame comprising a push handle group (5), characterized in that: The push handle assembly (5) is fixedly connected to a seat interface (3), and the seat interface (3) is rotatably connected to an upper shock absorber housing (8). The upper shock absorber housing (8) is fitted with a shock absorber tube (10), and the other end of the shock absorber tube (10) is fitted with a shock absorber fixing rubber part (18). The shock absorber fixing rubber part (18) is fixedly connected to a foot tube (17) and a rear foot U-shaped tube (20). The shock absorber tube (10) is provided with a shock absorber spring (11), an embedded upper shock absorber inner sleeve (12), and a return card guide groove (14). The return card guide groove (14) is provided with a return spring (15) and a return card body (16).

2. The folding structure of a children's stroller frame according to claim 1, characterized in that: The seat interface (3) is provided with a pull cable body (4), one end of the pull cable body (4) is provided with a pull cable head resist body (401), and the other end of the pull cable body (4) is provided with a pull cable spring (402), a T-shaped pull cable resist body (403) and a pull cable tail resist body (404). The push handle assembly (5) is provided with a pull cable slot strip (2), and the pull cable spring (402) is engaged with the pull cable slot strip (2), the seat interface (3) and the embedded shock-absorbing inner sleeve (12).

3. The folding structure of a stroller frame according to claim 2, characterized in that: The push handle assembly (5) is fitted with a retractable handle (1), and the retractable handle (1) is provided with a cable head stop limiter (101), and the cable head stop limiter (101) is engaged with the cable head stop body (401).

4. The folding structure of claim 1, wherein: One end of the vehicle receiving card guide groove (14) is provided with a vehicle receiving card T-shaped pull wire stop fixing point (1401), and the other end of the vehicle receiving card guide groove (14) is provided with a guide groove protrusion (1402), and the vehicle receiving card T-shaped pull wire stop fixing point (1401) is engaged with the T-shaped pull wire stop body (403).

5. The folding structure of a children's stroller frame according to claim 1, characterized in that: One end of the vehicle receiving card body (16) is provided with a pull wire tail stop fixing point (1601), and the other end of the vehicle receiving card body (16) is provided with a vehicle receiving card slot (1602). The pull wire tail stop fixing point (1601) is attached to the pull wire tail stop body (404). The shock absorber fixing rubber part (18) is provided with a guide groove slot (1801) and a vehicle receiving card slot (1802). The vehicle receiving card slot (1602) is attached to the vehicle receiving card slot (1802).

6. The folding structure of a children's stroller frame according to claim 1, characterized in that: The shock-absorbing tube (10) is rotatably connected to a shock-absorbing rod folding iron plate (13) and a vegetable basket folding iron plate (19). The other end of the shock-absorbing rod folding iron plate (13) is rotatably connected to the outer wall of one side of the shock-absorbing rod fixing rubber part (18), and the other end of the vegetable basket folding iron plate (19) is rotatably connected to a vegetable basket tube (21).

7. The folding structure of claim 1, wherein: Bolts (9) are fitted onto the outer shell (8) of the upper shock absorber rod, and the bolts (9) are fitted onto the shock absorber tube (10) and the inner sleeve (12) of the upper shock absorber.

8. The folding structure of claim 2, wherein: A front cover (6) is fixedly connected to one side of the outer wall of the seat interface (3), and a rear cover (7) is fixedly connected to the other side of the outer wall of the seat interface (3).

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