Foldable easy-to-store frame structure of bicycle

Abstract

The utility model discloses a foldable easy-to-store bicycle frame structure which comprises a front frame assembly, a supporting assembly is fixed on one side of the front frame assembly, a stabilizing assembly is fixed on one side of the front frame assembly, a damping assembly is in threaded connection with the interior of the supporting assembly, the stabilizing assembly comprises a second fixing frame, and the second fixing frame is fixed on one side of the front frame assembly. The front frame assembly comprises a seat tube, a cross beam is fixed to one side of the seat tube, a handle tube is fixed to the end of the cross beam, and a supporting beam is fixed to one side of the handle tube. According to the bicycle frame, the stabilizing rods and the supporting rods can be folded in the mode that the damping assemblies are detached, so that the occupied space of the bicycle frame can be reduced when the bicycle frame is mailed, and the damping performance of a bicycle can be improved through the damping assemblies.

Description

A foldable and easy-to-store bicycle frame structure Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a foldable and easy-to-store bicycle frame structure. Background Technology

[0002] Bicycles are a green mode of transportation. As the number of cars in my country increases, more and more people are buying bicycles online. However, most bicycles are now shipped disassembled, and the frames are mostly welded as a whole to maintain rigidity. This results in a large size for shipping, and most ordinary bicycles do not have shock absorption.

[0003] Chinese Patent Publication No. CN213262801U discloses a foldable bicycle frame, belonging to the field of bicycle technology. It solves the problem of instability when dragging a folded bicycle frame, leading to difficulty in dragging. A foldable bicycle frame includes a front frame, a rear fork, and a hinge axle. The lower part of the front frame has an inclined bushing, and the hinge axle passes through the bushing. The rear fork has a connecting fork, which is rotatably connected to the hinge axle. The rear fork can rotate around the hinge axle so that the wheel mounting part of the rear fork is located to the side of the wheel mounting part of the front frame. This foldable bicycle frame allows both wheels to roll simultaneously when dragged after folding, making dragging the folded bicycle frame stable and easy.

[0004] The existing bicycle frame structure for easy storage has the following problems: although the frame can be folded, its structure makes manufacturing complicated, thus increasing manufacturing costs. In addition, the frame has poor stability, cannot bear large weights, and does not have good shock absorption.

[0005] Therefore, there is an urgent need to design a foldable and easy-to-store bicycle frame structure to solve the above problems. Summary of the Invention

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a foldable and easily stored bicycle frame structure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A foldable and easy-to-store bicycle frame structure includes a front frame assembly. A support assembly is fixed to one side of the front frame assembly, and a stabilizing assembly is fixed to one side of the front frame assembly. A shock-absorbing assembly is threadedly connected inside the support assembly. The stabilizing assembly includes a second fixing frame, which is fixed to one side of the front frame assembly. A second fixing shaft is fixed inside the second fixing frame. A second rotating cylinder is rotatably connected to one side of the second fixing shaft. A stabilizing rod is fixed to one side of the second rotating cylinder. A sleeve block is fixed to the end of the stabilizing rod, and a sleeve hole is opened on one side of the sleeve block.

[0009] Furthermore, the front frame assembly includes a seat tube, a crossbeam is fixed to one side of the seat tube, and a handle tube is fixed to the end of the crossbeam.

[0010] Furthermore, a support beam is fixed to one side of the handle tube, and a foot pedal tube is fixed to the end of the seat tube.

[0011] Furthermore, the support assembly includes a fixing frame, which is fixed to one side of the seat tube. A fixing shaft is fixed inside the fixing frame, and a rotating cylinder is rotatably connected to one side of the fixing shaft. A support rod is fixed to one side of the rotating cylinder.

[0012] Furthermore, a support block one is fixed to one side of the support rod, a threaded hole is opened on one side of the support block one, and a support block two is fixed to one side of the support rod.

[0013] Furthermore, a through hole is provided on one side of the second support block, a fixing block is fixed to the end of the support rod, and a slot is provided on one side of the fixing block.

[0014] Furthermore, the shock-absorbing assembly includes a threaded bolt, which is threadedly connected inside a threaded hole. A slide rod is sleeved on one side of the threaded bolt, and a spring is sleeved on one side of the slide rod.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. By unscrewing the bolts from the threaded holes using the stabilizing components, the slide bar can be removed from between support block one and support block two. This allows the stabilizing bar to rotate with reference to cylinder two, while the support bar can also rotate with reference to cylinder one. As a result, the rear half of the frame can be folded, thus reducing the space occupied when packing and shipping the frame. Furthermore, the triangular connection between the support bar, stabilizing bar, and seat post effectively improves the frame's stability, and the manufacturing structure is simple.

[0017] 2. By using the shock-absorbing components, the support rod, seat post, and stabilizer rod form a triangle. Both the support rod and the stabilizer rod can rotate. Therefore, with the support of the rear wheel of the bicycle, and the sleeve at the end of the stabilizer rod can move a short distance on the slide rod, the frame can ensure stability and sturdiness while also using springs for shock absorption, thereby increasing the comfort of riding the bicycle.

[0018] 3. By using the support components, the support rod rotates around the rotating cylinder as a reference, and under the constraint of the stabilizing rod, the support rod can move up and down, thus enabling the bicycle to absorb shocks when riding. Furthermore, the support rod can be folded after the shock-absorbing components are removed.

[0019] 4. By using the front frame assembly, which is welded together as a whole, the bicycle frame is made sturdy and reliable. At the same time, the support and stabilizing components are fixedly connected to the seat post, so that the rear half of the bicycle frame can both absorb shock and maintain sturdiness and stability. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of a foldable and easy-to-store bicycle frame structure proposed in this utility model.

[0021] Figure 2 is a schematic diagram of the support components of a foldable and easy-to-store bicycle frame structure proposed in this utility model.

[0022] Figure 3 is a schematic diagram of the sturdy components of a foldable and easy-to-store bicycle frame structure proposed in this utility model.

[0023] Figure 4 is a partially enlarged schematic diagram of a foldable and easy-to-store bicycle frame structure proposed in this utility model.

[0024] In the diagram: 1. Front frame assembly; 2. Seat post; 3. Crossbeam; 4. Handlebar; 5. Support beam; 6. Pedal tube; 7. Support assembly; 8. Fixed frame one; 9. Fixed shaft one; 10. Rotary drum one; 11. Support rod; 12. Support block one; 13. Threaded hole; 14. Support block two; 15. Through hole; 16. Fixed block; 17. Slot; 18. Stabilizing assembly; 19. Fixed frame two; 20. Fixed shaft two; 21. Rotary drum two; 22. Stabilizing rod; 23. Sleeve block; 24. Sleeve hole; 25. Shock absorption assembly; 26. Threaded bolt; 27. Slide rod; 28. Spring. Detailed Implementation

[0025] 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.

[0026] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please refer to Figures 1 to 4. A foldable and easy-to-store bicycle frame structure includes a front frame assembly 1. A support assembly 7 is fixed to one side of the front frame assembly 1, and a stabilizing assembly 18 is fixed to one side of the front frame assembly 1. A shock-absorbing assembly 25 is threadedly connected inside the support assembly 7. The stabilizing assembly 18 includes a second fixing frame 19, which serves as a transition connection between the stabilizing rod 22 and the seat post 2. The second fixing frame 19 is fixed to one side of the front frame assembly 1. A second fixing shaft 20 is fixed inside the second fixing frame 19. The second fixing shaft 20 serves as a sleeve for connecting a second rotating cylinder 21. The second fixing shaft 20 is rotatably connected to the second rotating cylinder 21 on one side. A stabilizing rod 22 is fixed to one side of the rotating cylinder 21. A sleeve block 23 is fixed to the end of the stabilizing rod 22. The sleeve block 23 can slide on a sliding rod 27. A sleeve hole 24 is opened on one side of the sleeve block 23.

[0029] Furthermore, the front frame assembly 1 includes a seat post 2, a crossbeam 3 fixed to one side of the seat post 2, the crossbeam 3 and the support beam 5 play a role in enhancing stability, a handlebar tube 4 fixed to the end of the crossbeam 3, a support beam 5 fixed to one side of the handlebar tube 4, and a pedal tube 6 fixed to the end of the seat post 2.

[0030] Furthermore, the support assembly 7 includes a fixing frame 8, which is fixed to one side of the seat tube 2. A fixing shaft 9 is fixed inside the fixing frame 8. A rotating cylinder 10 is rotatably connected to one side of the fixing shaft 9. A support rod 11 is fixed to one side of the rotating cylinder 10. A support block 12 is fixed to one side of the support rod 11. A threaded hole 13 is provided on one side of the support block 12, which facilitates the screwing in of the threaded bolt 26. A second support block 14 is fixed to one side of the support rod 11. A through hole 15 is provided on one side of the support block 14, which facilitates the threaded bolt 26 to pass through the support block 14. A fixing block 16 is fixed to the end of the support rod 11. A slot 17 is provided on one side of the fixing block 16.

[0031] Furthermore, the shock absorber assembly 25 includes a threaded bolt 26, which is threaded into the threaded hole 13. A slide rod 27 is sleeved on one side of the threaded bolt 26. The length of the slide rod 27 is several millimeters shorter than the gap between the first support block 12 and the second support block 14. This ensures that when the stabilizing rod 22 drives the slide rod 27 to rotate, the slide rod 27 can be pulled out from between the first support block 12 and the second support block 14. A spring 28 is sleeved on one side of the slide rod 27. The spring 28, through compression, can ensure that the vehicle has a certain deformation buffer when on bumpy roads, thereby achieving the purpose of shock absorption.

[0032] Working principle: When using the bicycle, simply flip the support rod 11 upwards and the stabilizing rod 22 downwards during mailing. Then, use cable ties to bind the support rod 11 and the stabilizing rod 22 to one side of the seat post 2. This greatly reduces the packaging size of the frame. After mailing to the destination, simply remove the cable ties, take out the threaded bolt 26, insert the threaded bolt 26 into the through hole 15, insert the slide rod 27 into the sleeve hole 24, and put the spring 28 on one side of the slide rod 27. Then, rotate the stabilizing rod 22 so that the slide rod 27 is between the support block 12 and the support block 24. Then, push the threaded bolt 26 so that it passes through the slide rod 27 and is screwed into the threaded hole 13. This makes the seat post 2, support rod 11, and stabilizing rod 22 form a triangle. Since both the support rod 11 and the stabilizing rod 22 can rotate, and the stabilizing rod 22 can slide on the slide rod 27, the rotation of the support rod 11 can cause the sleeve block 23 to compress the spring 28, thereby achieving the purpose of shock absorption. Then you can install the handlebars, front and rear wheels, pedals, and other accessories.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A foldable stowable bicycle frame structure comprising a front frame assembly (1) characterised in that: A support component (7) is fixed on one side of the front frame assembly (1), and a stabilizing component (18) is fixed on one side of the front frame assembly (1). A shock-absorbing component (25) is threaded inside the support component (7). The stabilizing component (18) includes a second fixing frame (19). The second fixing frame (19) is fixed on one side of the front frame assembly (1). A second fixing shaft (20) is fixed inside the second fixing frame (19). A second rotating cylinder (21) is rotatably connected on one side of the second fixing shaft (20). A stabilizing rod (22) is fixed on one side of the second rotating cylinder (21). A sleeve block (23) is fixed at the end of the stabilizing rod (22). A sleeve hole (24) is opened on one side of the sleeve block (23).

2. The foldable and compact bicycle frame structure of claim 1, wherein: The front frame assembly (1) includes a seat tube (2), a crossbeam (3) is fixed to one side of the seat tube (2), and a handle tube (4) is fixed to the end of the crossbeam (3).

3. The foldable stowable bicycle frame structure of claim 2, wherein: A support beam (5) is fixed to one side of the handle tube (4), and a foot pedal tube (6) is fixed to the end of the seat tube (2).

4. The foldable stowable bicycle frame structure of claim 2, wherein: The support assembly (7) includes a fixing frame (8), which is fixed on one side of the seat tube (2). A fixing shaft (9) is fixed inside the fixing frame (8). A rotating cylinder (10) is rotatably connected to one side of the fixing shaft (9). A support rod (11) is fixed to one side of the rotating cylinder (10).

5. The foldable stowable bicycle frame structure of claim 4, wherein: A support block (12) is fixed on one side of the support rod (11), and a threaded hole (13) is opened on one side of the support block (12). A support block (14) is fixed on one side of the support rod (11).

6. The foldable stowable bicycle frame structure of claim 5, wherein: The second support block (14) has a through hole (15) on one side, and a fixing block (16) is fixed at the end of the support rod (11). A slot (17) is provided on one side of the fixing block (16).

7. The foldable stowable bicycle frame structure of claim 5 wherein: The shock-absorbing assembly (25) includes a threaded bolt (26), which is threaded into the threaded hole (13). A slide rod (27) is sleeved on one side of the threaded bolt (26), and a spring (28) is sleeved on one side of the slide rod (27).

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