A bicycle speed regulator and a bicycle

Abstract

The utility model discloses a bicycle speed regulator and bicycle, bicycle speed regulator includes speed regulator shell, speed regulator worm, speed handle, speed handlebar cover, worm wheel, worm wheel bearing, first adjusting steel wire rope fluted pulley, second adjusting steel wire rope fluted pulley, rear -view mirror support and tap cover, the upper portion in speed regulator shell is transversely installed with speed regulator worm through worm bearing, and the lower portion in speed regulator shell is longitudinally installed with the worm wheel of meshing with speed regulator worm through worm wheel bearing, the left side of speed regulator shell is equipped with extension pipe, is equipped with tap cover on extension pipe, and tap cover is locked on extension pipe through rear -view mirror support. The utility model discloses through worm wheel worm drive and double fluted pulley linkage design realizes accurate speed control, and the whole has the characteristics of compact structure, labour saving, convenient adjustment, speed linear and high reliability, can realize the effect of speed regulation, constant speed, stepless speed regulation, realizes the sliding positioning of traction support before and after to the millimeter level, avoids the phenomenon of riding when jumping the file.

Description

Technical Field

[0001] This utility model relates to the field of bicycles, specifically to a bicycle speed controller and a bicycle. Background Technology

[0002] A bicycle is a two-wheeled mode of transportation, consisting of a frame, two wheels, two pedals, and a chain. It can be ridden manually, requiring no fuel, making it a green and healthy mode of transportation. Bicycles have wide applications in transportation, sports, and recreation, and are often referred to as "a crystallization of human ingenuity." There are many types of bicycles, including touring bikes, road bikes, mountain bikes, and folding bikes.

[0003] The patent publication number CN 219565380 U discloses a steel wire rope traction variable torque bicycle. However, although the length of the steel wire rope 14 can be adjusted by adjusting the rope tensioner 11, and the sliding sleeve drives the irregular bracket to move to change the length of the traction arm and torque, the rope tensioner 11 is installed on the frame 3, which is not easy to adjust during riding, and the adjustment accuracy is not high. Summary of the Invention

[0004] The purpose of this utility model is to provide a bicycle speed regulator and a bicycle that overcomes the shortcomings of the prior art.

[0005] The technical solution of this utility model:

[0006] A bicycle speed controller includes a speed controller housing, a speed regulating worm gear, a speed regulating handle, a speed regulating handle sleeve, a worm wheel, a worm wheel bearing, a first adjusting wire rope grooved pulley, a second adjusting wire rope grooved pulley, a rearview mirror bracket, and a stem sleeve.

[0007] The speed controller housing has a speed control worm installed laterally on the upper part of the housing via a worm bearing. The right end of the speed control worm has an external thread, and the speed control handle has an internal thread that mates with the external thread. The speed control handle is connected to the speed control worm via the thread and is fixed by the speed control handle positioning bolt. The speed control handle sleeve is installed on the outside of the speed control handle.

[0008] A worm wheel that meshes with the speed regulating worm is longitudinally mounted inside the lower part of the speed governor housing via a worm wheel bearing;

[0009] An extension tube is provided on the left side of the speed governor housing. The left end of the speed regulating worm passes through the extension tube and is axially limited by a limiting bolt.

[0010] The extension tube is equipped with a faucet sleeve, which is locked to the extension tube by a rearview mirror bracket.

[0011] Furthermore, a front stop bolt and a rear stop bolt are respectively provided on the left side of the speed regulator housing in the front and rear directions.

[0012] Furthermore, the upper surface of the governor housing is provided with a right brake lever mounting hole and a lubrication hole.

[0013] This utility model also provides a bicycle, including: the above-mentioned bicycle speed controller.

[0014] This invention achieves precise speed control through a worm gear transmission and double grooved wheel linkage design. The speed adjustment handle sleeve drives the worm to rotate the worm wheel, causing the two adjusting wire rope grooved wheels to rotate in opposite directions, thus changing the lever arm length by sliding the traction bracket. This allows for synchronous adjustment of pedaling force as the vehicle speed increases or decreases. The extension tube and rearview mirror bracket enhance installation stability, while the lubrication port ensures smooth long-term operation. The overall design features a compact structure, easy operation, convenient adjustment, linear speed change, and high reliability. It can achieve speed adjustment, constant speed, and stepless speed change, and the traction bracket can be positioned at the millimeter level, preventing gear skipping during riding. Attached Figure Description

[0015] Figure 1 This is a three-dimensional exploded view of a preferred embodiment of the present invention;

[0016] Figure 2 This is a top exploded view of a preferred embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of a preferred embodiment of the present utility model;

[0018] Figure 4 This is a top view of a preferred embodiment of the present invention;

[0019] Figure 5 for Figure 4 Sectional view along AA;

[0020] Figure 6 This is a schematic diagram of the installation of this utility model on a faucet;

[0021] Figure 7 This is a schematic diagram illustrating the adjustment of this utility model on a bicycle;

[0022] Figure 8 This is a schematic diagram illustrating the adjustment of this utility model from another perspective on a bicycle;

[0023] Figure 9 This is a schematic diagram of the structure of this utility model on a bicycle;

[0024] In the diagram: 1. Speed ​​controller housing; 2. Speed ​​regulating worm gear; 3. Worm gear bearing; 4. Speed ​​regulating handle; 5. Speed ​​regulating handle sleeve; 6. Speed ​​regulating handle positioning bolt; 7. Limit bolt; 8. Worm gear; 9. Worm gear bearing; 10. First adjusting wire rope grooved pulley; 11. First main adjusting wire rope; 12. Second adjusting wire rope grooved pulley; 13. Second main adjusting wire rope; 15. Rear stop bolt; 14. Front stop bolt; 16. Rearview mirror bracket; 17. Handle handle; 18. Lubrication and oiling hole; 19. Right brake lever mounting hole; 20. Extension tube; 21. Right brake lever; 22. Handle handle; 23. First sub-adjusting wire rope; 24. Second sub-adjusting wire rope; 25. Traction bracket; 26. Adjusting wire rope transition pulley; 27. Foot arm. Detailed Implementation

[0025] The present invention can be further described through the following embodiments; however, the scope of the present invention is not limited to the following embodiments. It should be understood that the embodiments described herein are disclosed by way of illustration only, and the present invention is not intended to limit its scope to the details of the construction and arrangement of the components described below or illustrated in the figures. Furthermore, in describing preferred embodiments, specific terminology will be used for clarity. It should be understood that each specific term includes: all technical equivalents that operate in a similar manner to achieve a similar purpose.

[0026] Example: Please refer to Figures 1 to 5 As shown, a bicycle speed controller includes a speed controller housing 1, a speed regulating worm gear 2, a speed regulating handle 4, a speed regulating handle sleeve 5, a worm wheel 8, a worm wheel bearing 9, a first adjusting wire rope grooved pulley 10, a second adjusting wire rope grooved pulley 12, a rearview mirror bracket 16, and a handlebar sleeve 17.

[0027] The speed controller housing 1 has a speed regulating worm 2 installed horizontally in the upper part of the housing via a worm bearing 3. The right end of the speed regulating worm 2 has an external thread. The speed regulating handle 4 has an internal thread that mates with the external thread. The speed regulating handle 4 is connected to the speed regulating worm 2 via the thread and is fixed by the speed regulating handle positioning bolt 6 to prevent the speed regulating handle 4 from loosening when it reverses. The speed regulating handle sleeve 5 is installed on the outside of the speed regulating handle 4 to increase friction.

[0028] A worm wheel 8, which meshes with the speed regulating worm 2, is longitudinally mounted on the lower part of the inner part of the speed regulator housing 1 via a worm wheel bearing 9;

[0029] An extension tube 20 is provided on the left side of the speed controller housing 1. The left end of the speed regulating worm 2 passes through the extension tube 20 and is axially limited by the limiting bolt 7 to prevent the speed regulating worm 2 from loosening to the right.

[0030] The extension tube 20 is equipped with a faucet sleeve 17, which is locked to the extension tube 20 by a rearview mirror bracket 16.

[0031] In this embodiment, a front stop bolt 14 and a rear stop bolt 15 are respectively provided on the left side of the speed regulator housing 1 in the front and rear directions, which serve to fix the wire rope sleeve.

[0032] In this embodiment, the upper surface of the speed controller housing 1 is provided with a right brake lever mounting hole 19 and a lubrication hole 18.

[0033] See Figure 1 , Figures 6 to 9 As shown, during installation, one end of the first main adjusting wire rope 11 and the second main adjusting wire rope 13 are respectively wound and fixed on the first adjusting wire rope groove wheel 10 and the second adjusting wire rope groove wheel 12. The other end of the first main adjusting wire rope 11 is connected to two first sub-adjusting wire ropes 23, and the other end of the second main adjusting wire rope 13 is connected to two second sub-adjusting wire ropes 24. The two first sub-adjusting wire ropes 23 are respectively connected to the traction bracket 25, and the two second sub-adjusting wire ropes 24 are respectively connected to the traction bracket 25 after passing around the adjusting wire rope transition pulleys 26 on the two side foot arms 27. The traction bracket 25 is slidably installed on the foot arms 27.

[0034] By twisting the speed regulating handle 5, the speed regulating worm 2 is driven to rotate. The rotation of the speed regulating worm 2 drives the worm wheel 8 and the two adjusting wire rope grooved wheels to rotate, which in turn drives the adjusting wire rope wound on the two adjusting wire rope grooved wheels to rotate synchronously. During the rotation of the two adjusting wire rope grooved wheels, one adjusting wire rope grooved wheel takes in the rope, and the other adjusting wire rope grooved wheel releases the rope. By adjusting the rotation direction of the two adjusting wire rope grooved wheels, the traction bracket 25 can be moved to change the length of the traction arm and the torque, thus achieving the function of speed change.

[0035] More specifically, when the speed adjustment handle 5 is turned clockwise, the speed adjustment worm 2 drives the worm wheel 8 to rotate forward. The rotation of the worm wheel 8 drives the first adjusting wire rope groove wheel 10 to release the rope, and the second adjusting wire rope groove wheel 12 to retract the rope. When the second adjusting wire rope groove wheel 12 retracts the rope, the second main adjusting wire rope 13 pulls the two second sub-adjusting wire ropes 24, and the traction bracket 25 slides forward. The power arm increases, the vehicle speed increases, and the pedaling force also increases.

[0036] Conversely, when the speed adjustment handle 5 is turned counterclockwise, the speed adjustment worm 2 drives the worm wheel 8 to reverse, and the reverse rotation of the worm wheel 8 drives the first adjusting wire rope groove wheel 10 to wind up the rope, and the second adjusting wire rope groove wheel 12 to unwind the rope. When the first adjusting wire rope groove wheel 10 winds up the rope, the first main adjusting wire rope 11 pulls the two first sub-adjusting wire ropes 23, the traction bracket 25 slides backward, the power arm shortens, the vehicle speed slows down, and the pedaling force is also reduced.

[0037] This utility model also provides a bicycle, including: the above-mentioned bicycle speed controller.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bicycle speed controller, characterized by, Includes speed controller housing (1), speed regulating worm gear (2), speed regulating handle (4), speed regulating handle sleeve (5), worm wheel (8), worm wheel bearing (9), first adjusting wire rope grooved wheel (10), second adjusting wire rope grooved wheel (12), rearview mirror bracket (16), and faucet sleeve (17). The speed regulator housing (1) is horizontally mounted with a speed regulating worm (2) through a worm bearing (3) in the upper part. The right end of the speed regulating worm (2) has an external thread. The speed regulating handle (4) has an internal thread that mates with the external thread. The speed regulating handle (4) is connected to the speed regulating worm (2) through the thread and is fixed by the speed regulating handle positioning bolt (6). The speed regulating handle sleeve (5) is installed on the outside of the speed regulating handle (4). A worm wheel (8) that meshes with the speed regulating worm (2) is longitudinally installed in the lower part of the inner part of the speed regulator housing (1) via a worm wheel bearing (9). The left side of the speed controller housing (1) is provided with an extension tube (20), and the left end of the speed regulating worm (2) passes through the extension tube (20) and is axially limited by the limiting bolt (7); The extension tube (20) is equipped with a faucet sleeve (17), which is locked to the extension tube (20) by a rearview mirror bracket (16).

2. The bicycle speed controller according to claim 1, characterized in that, The governor housing (1) is provided with a front stop bolt (14) and a rear stop bolt (15) on the left side in the front and rear directions, respectively.

3. The bicycle speed controller according to claim 1, characterized in that, The upper surface of the governor housing (1) is provided with a right brake lever mounting hole (19) and a lubrication hole (18).

4. A bicycle, characterized in that, include: The bicycle speed controller as described in any one of claims 1-3.

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