Bicycle control device capable of smoothly drawing pull wire

Abstract

The utility model relates to a bicycle control device capable of smoothly drawing a pull wire, and aims to solve the problem that a speed change wire of bicycle control equipment is easy to block, the bicycle control device capable of smoothly drawing the pull wire comprises a shell, and one end of the shell is provided with a wiring port; the shell is internally provided with a base which is provided with a connecting shaft; the wire drawing disc is arranged on the connecting shaft in a sleeving manner; one end of the variable-speed cable is connected to the cable pulling disc, and the other end of the variable-speed cable extends out of the cable passing opening; the ratchet disc rotates synchronously with the wire pulling disc, and a plurality of ratchets are arranged on the ratchet disc; the driving unit is matched with the ratchets and used for driving the ratchet disc to rotate forwards and backwards; a shifting cable moving channel is formed between the cable outlet and the positioning hole and is parallel to the cable pulling disc. The moving channel is parallel to the wire pulling disc, so that when the position of the speed changing wire is changed by changing the position of the wire pulling disc to achieve the speed changing function, the rotating action and the speed changing wire pushing and pulling action can be in the same plane as much as possible, and the bending angle of the speed changing wire stretching out of the wire passing opening can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of bicycle accessories, and specifically relates to a bicycle control device with a smooth pull-out cable. Background Technology

[0002] Existing patent application CN 109665060 A discloses a bicycle control device, which includes a shifting unit, a winding plate, and a positioning plate. The winding plate is connected to the gear cable and moves synchronously with the positioning plate. The shifting unit controls the positioning plate, causing it to rotate, which in turn drives the winding plate to rotate, thus enabling shifting up and down. One end of the bicycle control device has a cable outlet, and the other end has a first operating lever and a second operating lever linked to the shifting unit. The cable outlet is located close to the handlebars so that the gear cable can be routed along the surface or inside of the handlebars. However, the plane on which the winding plate and the positioning plate are located is parallel to the handlebars. The end of the gear cable is fixed to the winding plate. When shifting gears, the gear cable rotates in the plane on which the winding plate is located and performs a push-pull action along the cable outlet. However, the rotation and push-pull actions of the gear cable are in an almost perpendicular plane. This causes the gear cable to form a large bending angle during cable routing, resulting in uneven cable routing and causing the gear cable to jam, thus affecting gear shifting. Utility Model Content

[0003] To address the problem of gear cables easily getting stuck in bicycle control devices, this invention provides a bicycle control device that allows for smooth cable pulling. By aligning the plane of the cable pull reel's rotation with the direction of the gear cable's push-pull motion, the problem of gear cables easily getting stuck is solved.

[0004] The technical solution adopted by this utility model is as follows: A bicycle control device with a smooth pull-out cable, comprising a housing, one end of which is provided with a cable outlet; the housing contains:

[0005] Connecting shaft;

[0006] A cable reel, which is sleeved on the connecting shaft and can rotate around the connecting shaft, and the cable reel is provided with positioning holes;

[0007] A speed change cable, one end of which is fixed at the positioning hole and the other end extends from the outlet.

[0008] A ratchet disc, which rotates synchronously with the wire pull disc;

[0009] A drive unit, which cooperates with the ratchet disk, is used to drive the ratchet disk to rotate in both directions;

[0010] A moving channel for the speed change cable is formed between the cable outlet and the positioning hole, and the moving channel is parallel to the cable reel.

[0011] The moving channel is parallel to the pull reel, so that when the position of the gear shift cable is changed by changing the position of the pull reel to achieve the gear shifting function, the rotation and pushing / pulling actions of the gear shift cable can be in the same plane as much as possible, which can reduce the bending angle of the gear shift cable when it extends from the outlet.

[0012] Furthermore, a brake handle is provided at one end of the outer casing relative to the outlet. The brake handle is rotatably mounted on the outer casing via a pin. One end of a brake cable is connected to the brake handle, and the other end extends from the outlet. There are no other obstacles between the brake handle and the outlet, and the cable runs smoothly without any bends. The brake handle rotates around the pin, and braking is achieved by pulling the brake cable when the brake handle is swung.

[0013] Furthermore, the driving unit includes:

[0014] The drive disk is mounted on the connecting shaft;

[0015] The drive paddle is rotatably mounted inside the drive disc and is linked to the ratchet disc.

[0016] The gear shift lever is located on one side of the housing and is linked to the drive disc to the gear shift paddle, which can cooperate with the drive paddle.

[0017] A deceleration paddle is located on one side of the drive disc and can rotate into contact with the drive paddle.

[0018] The downshift handle is linked to the downshift paddle.

[0019] The ratchet disc is provided with a ratchet groove, and the inner wall of the ratchet groove is convex and concave to form a plurality of ratchet teeth. The drive pawl is disposed in the ratchet groove and can slide along the ratchet teeth.

[0020] When shifting gears, the shift lever drives the drive disc to rotate, causing the drive paddle to slide along the ratchet in the forward direction, thereby causing the ratchet disc to rotate in the forward direction;

[0021] When downshifting, the downshift handle drives the downshift paddle to rotate, pushing the drive paddle to slide in the opposite direction along the ratchet, thereby causing the ratchet disc to rotate in the opposite direction.

[0022] Furthermore, the brake handle is provided with a positioning shaft perpendicular to the pin, and the gear shift handle is sleeved on the positioning shaft. A first return spring is also provided on the positioning shaft, and the gear shift handle returns to its original position by the torque provided by the first return spring. The brake handle rotates around the pin, and the gear shift handle swings laterally along the positioning shaft. In this way, the rotation of the brake handle and the swing of the gear shift handle are in different directions. Although the gear shift handle is located on the brake handle, the two do not affect each other when they work independently, achieving a compact structure and reasonable layout.

[0023] Furthermore, the ratchet disc is provided with protruding teeth on its side, and a stop pawl engages with the protruding teeth. The stop pawl is coaxial with and opposite to the de-shift lever. When the de-shift lever drives the de-shift lever to rotate, the stop pawl disengages from the protruding teeth. The stop pawl effectively prevents slippage, ensuring that both shifting and de-shifting only slide one gear.

[0024] Furthermore, the working surface of the downshift lever is perpendicular to the working surface of the upshift lever. This arrangement facilitates the distinction between upshifting and downshifting actions. In existing designs, the downshift lever and upshift lever operate in two concentric planes. This causes the swing distance of the upshift and downshift levers to affect not only each other but also the size of the ratchet, thus preventing a compact and reasonable layout of the entire bicycle control device. In this application, the working surface of the downshift lever is set at an angle to the working surface of the upshift lever, and preferably the working surface of the downshift lever is perpendicular to the working surface of the upshift lever. This ensures that even if the ratchet is small, the downshift and upshift levers do not interfere with each other's operation.

[0025] Furthermore, the drive paddle and the gear shift lever are linked by a helical gear assembly, which has a protruding arm located on the swing path of the gear shift lever.

[0026] Furthermore, the de-shift handle includes a handle body rotatably mounted on the housing via a rotating shaft. The handle body is provided with a second return spring and a protrusion. The handle body returns to its original position via the second return spring. The protrusion can push the de-shift paddle to rotate, thereby pushing the drive paddle to slide in the opposite direction along the ratchet, causing the ratchet disc to rotate in the opposite direction.

[0027] Furthermore, the drive disc is provided with a cover plate, and the cover plate has a through hole. The drive paddle passes through the through hole and abuts against the ratchet. The cover plate on the drive disc can surround the drive paddle, effectively preventing the drive paddle from dislodging, and can also limit the swing angle of the drive paddle through the through hole.

[0028] Furthermore, the drive disc returns to its original position via a first return torsion spring. This return torsion spring provides elastic force, giving the drive disc a rotational return force, thereby ensuring continuous adjustment.

[0029] Furthermore, the pull-line disc is provided with a positioning rib, and the ratchet disc is provided with a positioning groove. The positioning rib is inserted into the positioning groove, thereby realizing the positioning of the pull-line disc and the ratchet disc.

[0030] The beneficial effects of this utility model are as follows: This application is a bicycle control device with a smooth cable pull. The moving channel is parallel to the cable pull reel. In this way, when the position of the gear cable is changed by changing the position of the cable pull reel to realize the gear shifting function, the rotation action and the plane on which it is located and the action of pushing and pulling the gear cable can be in the same plane as much as possible. This can minimize the bending angle of the gear cable when it is running, thereby ensuring smooth operation. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure;

[0032] Figure 2 This is a schematic diagram of the structure without an outer shell;

[0033] Figure 3 A schematic diagram of the structure without the shift lever and the unshift lever;

[0034] Figure 4 This is a schematic diagram of the internal assembly structure;

[0035] Figure 5 This is a schematic diagram of the drawstring reel structure;

[0036] Figure 6 This is a schematic diagram of the brake lever structure;

[0037] Figure 7 This is a schematic diagram of the ratchet disc structure;

[0038] In the diagram: 1-Outer shell; 11-Cable outlet; 2-Support plate; 21-Connecting shaft; 22-First return torsion spring; 3-Pull cable reel; 31-Positioning rib; 32-Positioning hole; 4-Gear cable; 5-Ratchet; 51-Outer tooth; 52-Positioning groove; 53-Ratchet groove; 531-Ratchet; 6-Drive unit; 61-Anti-reverse pawl; 62-Shift lever; 63-Cover plate; 631-Through hole; 64-Disengage lever; 641-Rotating shaft; 642-Lever body; 643-Second return spring; 644 - Protrusion; 65- Drive disc; 66- Reverse shift paddle; 661- Second torsion spring; 662- Push cylinder; 663- Connecting rod; 67- Drive paddle; 671- Paddle torsion spring; 68- Positioning plate; 7- Brake handle; 71- Pin; 72- Brake cable; 73- Positioning shaft; 74- First return spring; 75- Fixing pin; 76- Brake cable fixing seat; 761- Limiting hole; 8- Helical gear assembly; 81- Protrusion arm; 82- Gear part; 83- Helical gear; 9- Base; 10- Third return torsion spring. Detailed Implementation

[0039] The technical solutions of the embodiments of this utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0040] A bicycle control device with a smooth pull-out cable, such as Figures 1 to 7 As shown, it includes a housing 1, one end of which is provided with a cable outlet 11; the housing 1 contains:

[0041] Support plate 2, on which a connecting shaft 21 is provided;

[0042] Base 9 is connected to the other end of connecting shaft 21;

[0043] The positioning piece 68 is connected to the support plate 2 via a connecting rod 663 and to the base 9 via a rotating shaft 641;

[0044] A cable reel 3 is sleeved on the connecting shaft 21 and can rotate around the connecting shaft 21. The cable reel 3 is provided with a positioning hole 32. The cable reel 3 is returned to its original position by a third return torsion spring 10.

[0045] The speed change cable 4 has one end fixed at the positioning hole 32 and the other end extending from the outlet 11.

[0046] The ratchet disc 5 rotates synchronously with the pull wire disc 3; the ratchet disc 5 is provided with a ratchet groove 53 and an externally protruding tooth 51, and the inner wall of the ratchet groove 53 is convex and concave to form a plurality of ratchet teeth 531;

[0047] Drive unit 6, which cooperates with ratchet disk 5, is used to drive ratchet disk 5 to rotate in both directions;

[0048] The drive unit 6 includes:

[0049] A drive disk 65 is mounted on the connecting shaft 21; the drive disk 65 returns to its original position via a first return torsion spring 22; the first return torsion spring 22 provides elastic force to provide rotational return force to the drive disk 65, thereby ensuring continuous adjustment; a positioning piece 68 is sandwiched between the drive disk 65 and the ratchet disk 5.

[0050] A drive paddle 67 is rotatably disposed within the drive disc 65. The drive paddle 67 is located within the ratchet groove 53 and can slide along the ratchet 531. The drive paddle 67 is reset by a paddle torsion spring.

[0051] The gear shift lever 62 is located on one side of the housing 1 and is linked to the drive disc 65 to the gear shift paddle 66, which can cooperate with the drive paddle 67.

[0052] The helical gear assembly 8 includes a gear portion 82 and a helical gear 83 disposed on the periphery of the drive disc 65. The helical gear 83 is disposed on the base 9. The helical gear 83 is linked to the gear shift handle 62. A protruding arm 81 is disposed on the helical gear 83. The protruding arm 81 is located on the swing path of the gear shift handle 62.

[0053] A deceleration paddle 66 is disposed on one side of the drive disc 65 and is capable of rotatably contacting the drive paddle 67; specifically, it is disposed on the connecting rod 663.

[0054] The de-shift handle 64 is linked to the de-shift paddle 66. The de-shift handle 64 includes a handle body 642 rotatably mounted on the housing 1 via a rotating shaft 641. The handle body 642 is provided with a second return spring 643 and a protrusion 644. The handle body 642 returns to its original position via the second return spring 643, and the protrusion 644 can push the de-shift paddle 66 to rotate. The end of the protrusion 644 is provided with a push cylinder 662. In this structure, the rotating shaft 641 serves as both a connector between the support plate 2 and the base 9 and also supports the rotation of the de-shift handle 64.

[0055] The anti-reverse pawl 61 is rotatably mounted on the connecting rod 663 and located on the side of the ratchet disc 5, and can cooperate with the external protruding tooth 51; the anti-reverse pawl 61 is returned to its original position by the second torsion spring 661;

[0056] The outlet 11 and the positioning hole 32 form a moving channel for the speed change cable 4, and the moving channel is parallel to the cable reel 3; in this embodiment, the speed change cable 4 passes through the outlet 11 and the positioning hole 32 to form the moving channel.

[0057] When shifting gears, the shift lever 62 drives the drive disc 65 to rotate, causing the drive paddle 67 to slide along the ratchet 531 in the forward direction, thereby causing the ratchet disc 5 to rotate in the forward direction.

[0058] When shifting out of gear, the shifting handle 64 pushes the cylinder between the shifting paddle 66 and the anti-shifting pawl 61, driving the shifting paddle 66 to slide in the opposite direction along the ratchet 531, and causing the anti-shifting pawl 61 to leave the ratchet disc 5, thereby causing the ratchet disc 5 to rotate in the opposite direction, thus ensuring that only one ratchet 531 rotates at a time.

[0059] The plane in which the rotation of the cable reel 3 occurs is parallel to the direction of the push-pull of the gear cable 4. This way, when the position of the gear cable 4 is changed by changing the position of the cable reel 3 to achieve the gear shifting function, the rotation and the push-pull of the gear cable 4 can be in the same plane as much as possible. This can reduce the bending angle of the gear cable 4 when it extends from the outlet 11.

[0060] The outer casing 1 has a brake handle 7 at one end relative to the outlet 11. The brake handle 7 is rotatably mounted on the outer casing 1 via a pin 71. One end of the brake cable 72 is connected to the brake handle 7, and the other end extends from the outlet 11. There are no other obstacles between the brake handle 7 and the outlet 11, and the cable runs smoothly without any bends. The brake handle 7 rotates around the pin 71, and the braking operation is completed by pulling the brake cable 72 when the brake handle 7 swings.

[0061] The brake handle 7 is provided with a positioning shaft 73 (in this embodiment, a fixing screw is used) perpendicular to the pin 71. The shift lever 62 is sleeved on the positioning shaft 73. A first return spring 74 is also provided on the positioning shaft 73. The shift lever 62 returns to its original position through the torque provided by the first return spring 74. The brake handle 7 rotates around the pin 71, and the shift lever 62 swings laterally along the positioning shaft 73. In this way, the rotation of the brake handle 7 and the swing direction of the shift lever 62 are different. Although the shift lever 62 is set on the brake handle 7, the two do not affect each other when working alone, achieving the purpose of compact structure and reasonable layout. In this embodiment, the brake handle 7 is provided with a brake cable fixing seat 76 with a limiting hole 761, which is positioned by a fixing pin 75. The limiting hole 761 and the cable outlet 11 are arranged opposite each other and as parallel as possible. One end of the brake cable 72 is set at the limiting hole 761, and the other end extends from the cable outlet 11. There are no other obstacles between the brake cable 72 and the outlet 11, and there are no other bends in the cable routing, making it easy to pull the brake cable 72. The brake handle 7 is set to rotate around the pin 71, and the braking operation is completed by pulling the brake cable 72 when the brake handle 7 swings.

[0062] The brake handle 7 is provided with a fixing screw 73 perpendicular to the pin 71. The gear shift handle 62 is sleeved on the brake handle 7. The brake handle 7 is also provided with a first return spring 74. The gear shift handle 62 returns to its original position by the torque provided by the first return spring 74. When the brake handle 7 rotates around the pin 71, the fixing screw 73 of the gear shift handle 62 swings laterally. In this way, the rotation of the brake handle 7 and the swing direction of the gear shift handle 62 are different. Although the gear shift handle 62 is set on the brake handle 7, the two do not affect each other when working independently, achieving the purpose of compact structure and reasonable layout.

[0063] The anti-reverse pawl 61 and the gear shift handle 62 are linked by a helical gear assembly 8. The helical gear assembly 8 is provided with a protruding arm 81, which is located on the swing path of the gear shift handle 62. The helical gear assembly 8 can convert the swing in the vertical plane into rotation in the horizontal plane. The helical gear assembly 8 includes a first gear 82 disposed at the edge of the drive disc 65 and a second gear 83 disposed on the housing 1. The protruding arm 81 is disposed on the second gear 83, and the first gear 82 engages with the gear shift turntable and rotates synchronously.

[0064] The cable reel 3 is provided with a positioning rib 31, and the ratchet disc 5 is provided with a positioning groove 52. The positioning rib 31 is inserted into the positioning groove 52, thereby achieving the positioning of the cable reel 3 and the ratchet disc 5. The plane in which the cable reel 3 rotates is parallel to the pushing and pulling direction of the gear cable 4. In this way, when the position of the gear cable 4 is changed by changing the position of the cable reel 3 to achieve the gear changing function, the rotation action and the pushing and pulling action of the gear cable 4 can be as close to the same plane as possible. This can reduce the bending angle of the gear cable 4 when it extends from the cable outlet 11.

[0065] The helical gear assembly 8 can convert the oscillation in the vertical plane into rotation in the horizontal plane. The helical gear assembly 8 includes a first gear 82 disposed at the edge of the drive disk 65 and a second gear 83 disposed on the housing 1. The protruding arm 81 is disposed on the second gear 83. The first gear 82 engages with the gear shift turntable and rotates synchronously.

[0066] The drive disc 65 is provided with a cover plate 63, and the cover plate 63 has a through hole 631. The drive paddle 67 passes through the through hole 631 and abuts against the ratchet. The cover plate 63 on the drive disc 65 can surround the drive paddle 67, effectively preventing the drive paddle 67 from falling out, and can also limit the swing angle of the drive paddle 67 through the through hole 631.

[0067] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A bicycle control device with a smooth pull-out cable, characterized in that, Includes a housing (1), one end of which is provided with a cable outlet (11); the housing (1) contains: Connecting shaft (21); A pull wire disc (3) is sleeved on the connecting shaft (21) and can rotate around the connecting shaft (21). The pull wire disc (3) is provided with a positioning hole (32). The speed change cable (4) has one end fixed at the positioning hole (32) and the other end extending from the outlet (11); A ratchet disc (5) rotates synchronously with the wire pull disc (3); The drive unit (6) cooperates with the ratchet disk (5) to drive the ratchet disk (5) to rotate in both directions; The outlet (11) and the positioning hole (32) form a moving channel for the speed change line (4), and the moving channel is parallel to the pull reel (3).

2. The bicycle control device with a smooth drawstring cable according to claim 1, characterized in that, The outer casing (1) is provided with a brake handle (7) at one end relative to the outlet (11). The brake handle (7) is rotatably mounted on the outer casing (1) via a pin (71). One end of a brake cable (72) is connected to the brake handle (7), and the other end extends out from the outlet (11).

3. The bicycle control device with a smooth draw cable according to claim 2, characterized in that, The driving unit (6) includes: A drive disk (65) is mounted on the connecting shaft (21); The drive paddle (67) is rotatably disposed within the drive disc (65) and is linked to the ratchet disc (5); The gear shift lever (62) is located on one side of the housing (1) and is linked to the drive disc (65) to the gear shift paddle (66), which can cooperate with the drive paddle (67); A deceleration paddle (66) is disposed on one side of the drive disc (65) and is capable of rotating into contact with the drive paddle (67); The downshift handle (64) is linked to the downshift paddle (66); The ratchet disc (5) is provided with a ratchet groove (53), and the inner wall of the ratchet groove (53) is convex and concave to form a plurality of ratchet teeth (531). The drive paddle (67) is disposed in the ratchet groove (53) and can slide along the ratchet teeth (531). When shifting gears, the shift lever (62) drives the drive disc (65) to rotate, causing the drive paddle (67) to slide along the ratchet (531) in the forward direction, thereby causing the ratchet disc (5) to rotate in the forward direction; When shifting down, the shift handle (64) drives the shift paddle (66) to rotate, pushing the drive paddle (67) to slide in the opposite direction along the ratchet (531), thereby causing the ratchet disc (5) to rotate in the opposite direction.

4. The bicycle control device with a smooth draw cable according to claim 3, characterized in that, The brake handle (7) is provided with a positioning shaft (73) perpendicular to the pin (71). The gear shift handle (62) is sleeved on the positioning shaft (73). The positioning shaft (73) is also provided with a first return spring (74). The gear shift handle (62) returns to its original position by the torque provided by the first return spring (74).

5. The bicycle control device with a smooth draw cable according to claim 3, characterized in that, The ratchet disc (5) is also provided with an externally protruding tooth (51) on its side. A stop pawl (61) is engaged with the externally protruding tooth (51). The stop pawl (61) is coaxial with the deceleration paddle (66) and is arranged in opposite directions. When the deceleration handle (64) drives the deceleration paddle (66) to rotate, the stop pawl (61) leaves the externally protruding tooth (51).

6. The bicycle control device with a smooth draw cable according to claim 3 or 4, characterized in that, The drive paddle (67) and the gear shift lever (62) are linked by a helical gear assembly (8). The helical gear assembly (8) is provided with a protruding arm (81), which is located on the swing path of the gear shift lever (62).

7. The bicycle control device with a smooth draw cable according to claim 6, characterized in that, The de-shift handle (64) includes a handle body (642) rotatably mounted on the housing (1) via a rotating shaft (641). The handle body (642) is provided with a second return spring (643) and a protrusion (644). The handle body (642) returns to its original position via the second return spring (643). The protrusion (644) can push the de-shift paddle (66) to rotate, thereby pushing the drive paddle to slide in the opposite direction along the ratchet (531), causing the ratchet disc (5) to rotate in the opposite direction.

8. The bicycle control device with a smooth draw cable according to claim 3, characterized in that, The drive plate (65) is provided with a cover plate (63), and the cover plate (63) is provided with a through hole (631). The drive paddle (67) passes through the through hole (631) and abuts against the ratchet (531).

9. The bicycle control device with a smooth drawstring cable according to claim 3, characterized in that, The drive disk (65) returns to its original position via a first return torsion spring (22).

10. The bicycle control device with a smooth draw cable according to claim 1, characterized in that, The pull-line disc (3) is provided with a positioning rib (31), and the ratchet disc (5) is provided with a positioning groove (52). The positioning rib (31) is inserted into the positioning groove (52) to achieve the positioning of the pull-line disc (3) and the ratchet disc (5).

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