A folder for a bicycle handlebar

Abstract

The utility model relates to bicycle handlebar technical field discloses a folder for bicycle handlebar, including the handlebar and two handlebar bodies, the surface of handlebar is opened with recess, the surface of handlebar is slidingly inserted with round bar, one end of round bar is located in recess, one end of round bar is fixedly connected with fixed plate, the surface of fixed plate is fixedly connected with two bolts, two bolts are slidingly inserted in the surface of handlebar, one end of bolt is located in recess, the surface of handlebar is opened with two through -holes, the surface of handlebar body is fixedly connected with pivot, the inner wall rotation of pivot and through -hole, one end of handlebar body located in recess is fixedly connected with two limit blocks, this bicycle handlebar folder reaches without special tool, and the bolt plug -in is completed barehanded, realizes the quick folding and unfolding of handlebar, solves the problem that traditional handlebar dismouting is complicated, time -consuming and laboursaving.

Description

Technical Field

[0001] This utility model relates to the field of bicycle handlebar technology, specifically a folding device for bicycle handlebars. Background Technology

[0002] The handlebars are rod-shaped components mounted on the front of a bicycle for the rider to grip and control. They are usually connected to the front fork and generally include a grip area, mounting positions for control components such as brake levers and shift paddles. Some handlebars may also be equipped with auxiliary handlebars, racks, or light brackets. Riders can change the direction of the front wheel by turning the handlebars to control the riding path, and use the control components on the handlebars to perform operations such as braking and shifting. They are one of the core components that ensure the bicycle's steering flexibility and riding control.

[0003] As a lateral extension component, the handlebars are typically as wide as or even wider than the wheelbase of a bicycle. When transporting a bicycle, the overall lateral dimensions remain large, making it difficult to fit into limited spaces such as car trunks or home storage rooms. Therefore, it is often necessary to disassemble the handlebars and separate them from the stem for individual storage. However, in actual use, this operation requires specialized tools such as Allen wrenches, making it impossible to quickly disassemble and assemble by hand. This is extremely inconvenient for outdoor or transport scenarios where tools are unavailable. Furthermore, the disassembly and reassembly process requires repeatedly tightening bolts, which is time-consuming and labor-intensive. To address this, we propose a folding mechanism for bicycle handlebars. Utility Model Content

[0004] The purpose of this invention is to provide a folding device for bicycle handlebars to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a folding device for bicycle handlebars, comprising a stem and two handlebar bodies. The surface of the stem has a groove, and a round rod is slidably inserted into the surface of the stem. One end of the round rod is located within the groove, and a fixing plate is fixedly connected to one end of the round rod. Two pins are fixedly connected to the surface of the fixing plate, and both pins are slidably inserted into the surface of the stem, with one end of each pin located within the groove. Two through holes are formed on the surface of the stem. A rotating shaft is fixedly connected to the surface of each handlebar body, rotating against the inner wall of the through holes. Two limiting blocks are fixedly connected to the end of each handlebar body located within the groove, and limiting holes are formed on the surface of each limiting block. The size of the pins matches the size of the limiting holes.

[0006] The effect achieved by the above components is that the pins can be inserted and removed by hand without special tools, enabling the handlebars to be quickly folded and unfolded, thus solving the problem of cumbersome, time-consuming and labor-intensive disassembly and assembly of traditional handlebars.

[0007] Preferably, a guide block is fixedly connected to one end of the rotating shaft, and a guide frame is fixedly connected to the surface of the handle, with the guide block fitting against the inner wall of the guide frame.

[0008] The effect achieved by the above components is that during rotation, the guide block slides along the inner wall of the guide frame, limiting the rotation trajectory of the handlebar body, so that the limiting hole on the limiting block can be accurately aligned with the pin, improving the ease of operation and avoiding the situation where it cannot be fixed due to misalignment.

[0009] Preferably, a spring is fitted onto the arc surface of the round rod, and the two ends of the spring are fixedly connected to the inner wall of the round rod and the groove, respectively.

[0010] The above components achieve the following effects: when folding, simply pull the round rod to overcome the spring force to remove the pin. After releasing, the spring automatically resets and locks, further simplifying the operation process. At the same time, the spring force can enhance the stability of the pin when inserted into the limiting hole.

[0011] Preferably, one end of the round rod is fixedly connected to a limiting ring, the inner wall of the limiting ring slides through the limiting rod, and both ends of the limiting rod are fixedly connected to the inner wall of the groove.

[0012] The effect achieved by the above components is that the movement of the round rod will cause the limiting ring to slide along the arc surface of the limiting rod, thereby providing precise guidance for the sliding direction of the round rod, preventing the round rod from tilting or deviating when it moves the pin, and ensuring that the pin can be stably and accurately inserted into or disengaged from the limiting hole.

[0013] Preferably, a pull ring is fixedly connected to the surface of the fixing plate.

[0014] The effect achieved by the above components is that when the pull ring is pulled, the movement of the pull ring will drive the round rod to move with the help of the fixed plate, so that the pull ring can easily pull the fixed plate.

[0015] Preferably, a disc is fixedly connected to one end of the rotating shaft, a column is fixedly connected to the surface of the disc, a groove is formed on the surface of the handle, a slider is slidably connected to the inner wall of the groove, two fixed columns are fixedly connected to the surface of the slider, and a connecting arm is rotatably connected to the arc surface of the fixed column and the column.

[0016] The effect achieved by the above components is as follows: pushing one side of the handlebar body to drive the pivot to rotate in the through hole, the handlebar body on that side drives the disc and the stem to rotate synchronously, the stem pulls the slider along the groove of the stem through the connecting arm, and the slider then drives the disc and handlebar body on the other side to rotate synchronously through the connecting arm on the other side, so as to realize the synchronous folding of the two handlebars, ensure that the two handlebars move in unison, and avoid the asynchronous state of the two handlebars caused by unilateral operation.

[0017] Preferably, a protective cover is fixedly connected to the surface of the stand, and the surface of the protective cover has an arc-shaped hole, the size of which is adapted to the size of the fixing plate.

[0018] The effects achieved by the above components are as follows: the protective cover is fixed on the stem surface, which can cover the core components such as the pin, spring, and round rod inside the groove. The size of the arc hole is adapted to the fixed plate, which not only does not affect the sliding action of the pin driven by the fixed plate, but also provides a certain degree of protection for the fixed plate, while improving the overall aesthetics of the folding device.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This invention involves pulling the pull ring away from the stem. The pull ring moves, and the fixed plate moves the rod. As the fixed plate moves, the pin gradually disengages from the limiting hole. Once the pin disengages, the locking of the limiting block is released. At this point, the handlebar body is pushed, causing the pivot to rotate within the through hole. When the handlebar body rotates to the appropriate angle, pressing the pull ring causes the rod to move the fixed plate closer to the stem. This movement of the fixed plate causes the pin to insert into another limiting hole, thus fixing the limiting block and locking the folded handlebar body. Finally, the handlebar body is folded to a position parallel to the stem, reducing the lateral dimensions of the bicycle and facilitating storage and transportation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the stand of this utility model; Figure 3 This is a schematic diagram of the structure of the pin of this utility model; Figure 4 This is a structural schematic diagram of the handlebar body of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A in the image; Figure 6 This is a schematic diagram of the stand from another angle of the present invention.

[0021] In the diagram: 1. Stem; 2. Handlebar body; 3. Groove; 4. Round rod; 5. Fixing plate; 6. Pin; 7. Through hole; 8. Shaft; 9. Limiting block; 10. Limiting hole; 11. Guide block; 12. Guide frame; 13. Spring; 14. Limiting ring; 15. Limiting rod; 16. Pull ring; 17. Disc; 18. Post; 19. Slide groove; 20. Slider; 21. Fixing post; 22. Connecting arm; 23. Protective cover; 24. Arc-shaped hole. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-2 This utility model provides a technical solution: a folding device for bicycle handlebars, including a stem 1 and two handlebar bodies 2. The surface of the stem 1 has a groove 3. A round rod 4 is slidably inserted into the surface of the stem 1. One end of the round rod 4 is located in the groove 3. A fixing plate 5 is fixedly connected to one end of the round rod 4. Two pins 6 are fixedly connected to the surface of the fixing plate 5. Both pins 6 are slidably inserted into the surface of the stem 1. One end of the pin 6 is located in the groove 3. Two through holes 7 are opened on the surface of the stem 1. A rotating shaft 8 is fixedly connected to the surface of the handlebar body 2. The rotating shaft 8 rotates with the inner wall of the through hole 7. Two limiting blocks 9 are fixedly connected to one end of the handlebar body 2 located in the groove 3. Limiting holes 10 are opened on the surface of the limiting blocks 9. The size of the pins 6 is adapted to the size of the limiting holes 10, so that the pins 6 can be inserted and removed by hand without special tools, realizing the rapid folding and unfolding of the handlebars, solving the problem of cumbersome, time-consuming and labor-intensive disassembly and assembly of traditional handlebars.

[0024] Reference Figure 3-6As shown in this embodiment: a guide block 11 is fixedly connected to one end of the rotating shaft 8, and a guide frame 12 is fixedly connected to the surface of the handlebar 1. The guide block 11 fits against the inner wall of the guide frame 12. During rotation, the guide block 11 slides along the inner wall of the guide frame 12, limiting the rotation trajectory of the handlebar body 2, so that the limiting hole 10 on the limiting block 9 can be accurately aligned with the pin 6, improving the convenience of operation and avoiding the situation where it cannot be fixed due to alignment deviation. A spring 13 is sleeved on the arc surface of the round rod 4. The two ends of the spring 13 are fixedly connected to the inner wall of the round rod 4 and the groove 3, respectively. When folding, the pin 6 can be pulled out by simply pulling the round rod 4 to overcome the elastic force of the spring 13. After releasing, the spring 13 automatically resets and locks, further simplifying the operation process. At the same time, the elastic force of the spring 13 can enhance the stability of the pin 6 inserted into the limiting hole 10. One end of the round rod 4 is fixedly connected to a limiting ring 14. The inner wall of the limiting ring 14 slides through a limiting rod 15. Both ends of the limiting rod 15 are fixedly connected to the inner wall of the groove 3. When the round rod 4 moves, it will cause the limiting ring 14 to slide along the arc surface of the limiting rod 15, thereby providing precise guidance for the sliding direction of the round rod 4. This prevents the round rod 4 from tilting or shifting when it moves the pin 6, ensuring that the pin 6 can be stably and accurately inserted into or disengaged from the limiting hole 10. A pull ring 16 is fixedly connected to the surface of the fixing plate 5. Pulling the pull ring 16 will cause the round rod 4 to move with the help of the fixing plate 5. The pull ring 16 facilitates the pulling of the fixing plate 5. One end of the rotating shaft 8 is fixedly connected to a disc 17, and a column 18 is fixedly connected to the surface of the disc 17. A groove 19 is opened on the surface of the handlebar 1, and a slider 20 is slidably connected to the inner wall of the groove 19. Two fixed posts 21 are fixedly connected to the surface of the slider 20. The fixed posts 21 and the arc surface of the column 18 are rotatably connected to a connecting arm 22. Pushing one side of the handlebar body 2 drives the rotating shaft 8 to rotate in the through hole 7. The handlebar body 2 on this side drives the disc 17 and the column 18 to rotate synchronously. The column 18 pulls the slider 20 along the groove 19 of the handlebar 1 through the connecting arm 22. The slider 20 then drives the disc 17 and the handlebar body 2 on the other side to rotate synchronously through the connecting arm 22 on the other side, so as to realize the synchronous folding of the handlebars on both sides, ensure that the actions of the handlebars on both sides are consistent, and avoid the asynchronous state of the handlebars on both sides due to unilateral operation. A protective cover 23 is fixedly connected to the surface of the handlebar 1. The surface of the protective cover 23 has an arc-shaped hole 24. The size of the arc-shaped hole 24 is adapted to the size of the fixing plate 5. The protective cover 23 is fixed to the surface of the handlebar 1 and can cover the core components such as the pin 6, spring 13, and round rod 4 inside the groove 3. The size of the arc-shaped hole 24 is adapted to the fixing plate 5, which does not affect the sliding action of the pin 6 driven by the fixing plate 5, and can also play a certain protective role for the fixing plate 5, while improving the overall aesthetics of the folding device.

[0025] Working principle: Under the natural elastic force of spring 13, the round rod 4 drives the fixing plate 5 and the pin 6 to move synchronously, so that the pin 6 is embedded in the limiting hole 10 on the limiting block 9 of the handlebar body 2, and the limiting block 9 is firmly locked in the groove 3 of the stem 1. At this time, the handlebar body 2 is in a horizontally unfolded state, and the connection is stable, which can meet the steering and control needs during riding. When it is necessary to fold the handlebar, hold the pull ring 16 on the fixing plate 5 and pull the pull ring 16 away from the stem 1. The pull ring 16 will move and pass through the arc hole 24. The movement of the pull ring 16 will drive the round rod 4 to move with the help of the fixing plate 5. The movement of the round rod 4 will compress the spring 13. At the same time, the movement of the fixing plate 5 will drive the pin 6 to gradually disengage from the limiting hole 10. The movement of the round rod 4 will drive the limiting plate 13 to move. The positioning ring 14 slides along the arc surface of the limiting rod 15, thereby providing precise guidance for the sliding direction of the round rod 4. This prevents the round rod 4 from tilting or shifting when it moves the pin 6, ensuring that the pin 6 can be stably and accurately inserted into or disengaged from the limiting hole 10. When the pin 6 is disengaged from the limiting hole 10, the locking of the limiting block 9 is released. At this time, pushing one side of the handlebar body 2 drives the rotating shaft 8 to rotate in the through hole 7. The handlebar body 2 on this side drives the disc 17 and the column 18 to rotate synchronously. The column 18 pulls the slider 20 along the slide groove 19 of the stem 1 through the connecting arm 22. The slider 20 then drives the disc 17 and the handlebar body 2 on the other side to rotate synchronously through the connecting arm 22 on the other side, realizing the synchronous folding of the handlebars on both sides. During the rotation, the guide block 11. Slide along the inner wall of the guide frame 12 to limit the rotation trajectory of the handlebar body 2, so that the limiting hole 10 on the limiting block 9 can be precisely aligned with the pin 6, improving the convenience of operation and avoiding the situation where it cannot be fixed due to misalignment. Then, release the pull ring 16. The round rod 4 will drive the fixing plate 5 to move closer to the stem 1 with the help of the spring 13. The movement of the fixing plate 5 will drive the pin 6 to insert into another limiting hole 10, thereby fixing the limiting block 9 and locking the folded handlebar body 2. Finally, the handlebar body 2 is folded to a state parallel to the stem 1, reducing the lateral size of the bicycle and making it easier to store and transport. The protective cover 23 is fixed on the surface of the stem 1 and can cover the pin 6, spring 13, round rod 4 and other core components inside the groove 3. The core component, the arc-shaped hole 24, is adapted to the size of the fixing plate 5. It does not affect the sliding action of the fixing plate 5 driving the pin 6, and can also provide a certain degree of protection for the fixing plate 5. At the same time, it improves the overall aesthetics of the folding device. When the handlebar body 2 is unfolded, the folded handlebar body 2 is pushed in the opposite direction. Under the action of the linkage structure, the two sides of the handlebar body 2 rotate synchronously around the pivot 8 in the opposite direction. The guide block 11 slides along the inner wall of the guide frame 12 and guides. When the handlebar body 2 is fully unfolded, the limiting hole 10 on the limiting block 9 is precisely aligned with the pin 6. At this time, the pull ring 16 is released, the spring 13 returns to its original elasticity, and pushes the round rod 4, the fixing plate 5 and the pin 6 to move inward. The pin 6 automatically inserts into the limiting hole 10, completing the re-fixation of the handlebar body 2 and restoring the riding state.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folding device for bicycle handlebars, comprising a stem (1) and two handlebar bodies (2), characterized in that: The surface of the stem (1) is provided with a groove (3), and a round rod (4) is slidably inserted into the surface of the stem (1). One end of the round rod (4) is located in the groove (3), and a fixing plate (5) is fixedly connected to one end of the round rod (4). Two pins (6) are fixedly connected to the surface of the fixing plate (5). Both pins (6) are slidably inserted into the surface of the stem (1). One end of the pin (6) is located in the groove (3). Two through holes (7) are provided on the surface of the stem (1). A rotating shaft (8) is fixedly connected to the surface of the handlebar body (2). The rotating shaft (8) rotates with the inner wall of the through hole (7). Two limiting blocks (9) are fixedly connected to one end of the handlebar body (2) located in the groove (3). Limiting holes (10) are provided on the surface of the limiting blocks (9). The size of the pin (6) is adapted to the size of the limiting hole (10).

2. A folding device for bicycle handlebars according to claim 1, characterized in that: One end of the rotating shaft (8) is fixedly connected to a guide block (11), and the surface of the handle (1) is fixedly connected to a guide frame (12). The guide block (11) is attached to the inner wall of the guide frame (12).

3. A folding device for bicycle handlebars according to claim 1, characterized in that: A spring (13) is fitted onto the arc surface of the round rod (4), and the two ends of the spring (13) are fixedly connected to the inner wall of the round rod (4) and the groove (3), respectively.

4. A folding device for bicycle handlebars according to claim 1, characterized in that: One end of the round rod (4) is fixedly connected to a limiting ring (14), and the inner wall of the limiting ring (14) slides through a limiting rod (15). Both ends of the limiting rod (15) are fixedly connected to the inner wall of the groove (3).

5. A folding device for bicycle handlebars according to claim 1, characterized in that: A pull ring (16) is fixedly connected to the surface of the fixing plate (5).

6. A folding device for bicycle handlebars according to claim 1, characterized in that: One end of the rotating shaft (8) is fixedly connected to a disc (17), and a column (18) is fixedly connected to the surface of the disc (17). A groove (19) is opened on the surface of the handle (1), and a slider (20) is slidably connected to the inner wall of the groove (19). Two fixed columns (21) are fixedly connected to the surface of the slider (20), and a connecting arm (22) is rotatably connected to the arc surface of the fixed column (21) and the column (18).

7. A folding device for bicycle handlebars according to claim 1, characterized in that: A protective cover (23) is fixedly connected to the surface of the handle (1). An arc-shaped hole (24) is opened on the surface of the protective cover (23). The size of the arc-shaped hole (24) is adapted to the size of the fixing plate (5).

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