Brake cable tightness adjusting device
By designing a brake line elastic adjustment device, the tension of the brake line is automatically adjusted by using the torsion spring and ratchet system, the problem of loosening of the bicycle brake line is solved, achieving convenient and efficient adjustment effect.
Patent Information
- Application Number
- CN202422851336.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The bicycle brake line is easily loosened after a long time of use, resulting in a decrease in the sensitivity of the brake system. The existing adjustment methods require professional tools and are time-consuming and labor-intensive.
A brake line elastic adjustment device is designed, including adjustment box, rotation shaft, torsion spring, support ear plate, abutment sleeve and abutment rod, and the tension force of the brake line is automatically adjusted through the torsion spring action of the torsion spring, and precise adjustment is achieved using ratchets and pawls, and convenient operation is combined with the handwheel.
It improves the convenience and accuracy of brake line tightness adjustment, reduces operation difficulty, extends the service life of the torsion spring, and ensures the stability and reliability of the brake system.
Smart Images
Figure CN223253191U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle braking systems, and in particular to a brake line tension adjustment device. Background Art
[0002] A bicycle, also known as a cycle or bicycle, is typically a small, two-wheeled land vehicle. Riders pedal and are a green and environmentally friendly means of transportation.
[0003] After long-term use, the bicycle's brake system may become less sensitive, that is, the brake line becomes loose, which may easily lead to the brake system being unable to pull the brake pads in time to stop the wheel during riding.
[0004] However, when riding, in order to adjust the tension of the brake line, the screw assembly on the brake disc needs to be removed before the brake line can be adjusted. This not only requires professional tools, but also is time-consuming and labor-intensive to adjust the brake line, making it less practical. Utility Model Content
[0005] In order to improve the convenience of adjusting the tightness of a bicycle brake line, the present application provides a brake line tension adjustment device.
[0006] The present application provides a brake line tension adjustment device that adopts the following technical solution:
[0007] A brake line tension adjustment device comprises a brake line body and an adjustment box for the brake line body to pass through, the adjustment box comprises a box bottom and a box body detachably connected to the box bottom, a rotating shaft is rotatably connected to the box bottom, an adjustment assembly is rotatably connected to the rotating shaft, the adjustment assembly comprises two supporting ear plates, the supporting ear plates are rotatably connected to the rotating shaft, one end of the adjustment assembly away from the rotating shaft abuts against the brake line body, a torsion spring is sleeved on the rotating shaft, and is connected between the box bottom and one of the supporting ear plates.
[0008] By adopting the above technical solution, when the brake cable body is not loose, the adjustment component is in contact with the brake cable, and at this time, the torsion spring is in a stressed state; when the brake cable body is loose, the torsion spring causes the support ear plate of the adjustment component to rotate on the rotating shaft under the action of torsion, thereby continuing to press against the brake cable body, thereby adjusting the tension of the brake cable, allowing people to brake normally when braking, thereby improving the convenience of adjusting the tightness of the brake cable body.
[0009] Optionally, the adjusting assembly also includes an abutment sleeve and an abutment rod, the support ear plate is fixedly connected to the abutment sleeve, the end of the abutment rod away from the brake line body is fixedly connected to the limit plate, a sliding groove is provided on the abutment sleeve, the limit plate is slidably connected in the sliding groove of the abutment sleeve, and the end of the abutment sleeve away from the support ear plate is provided with a fixed plate for preventing the abutment rod from detaching from the abutment sleeve, and an abutment spring is provided in the sliding groove between the limit plate and the inner bottom surface of the abutment sleeve.
[0010] By adopting this technical solution, when braking, the brake cable body tightens, and the abutment rod slides within the abutment sleeve under the action of the tightening force of the brake cable body. When braking is released, the brake cable body returns to its normal state, and the abutment rod returns to its normal position under the action of the abutment spring. While riding can be bumpy, the sliding fit between the abutment rod and the abutment sleeve reduces the number of times the torsion spring is subjected to force during braking, thereby increasing the service life of the torsion spring.
[0011] Optionally, an avoidance groove is formed at one end of the abutment rod away from the limiting plate, an I-shaped wheel is rotatably connected in the avoidance groove, and the brake line body abuts against the I-shaped wheel.
[0012] By adopting the above technical solution and using the I-shaped wheel, not only the brake cable body can be limited, but also the friction force is greatly reduced, thereby increasing the service life of the brake cable body.
[0013] Optionally, an adjustment port is provided at one end of the abutment sleeve close to the supporting ear plate, the adjustment port is connected to the slide groove, a steel wire rope is wound between the supporting ear plates, one end of the steel wire rope is fixedly connected to the rotating shaft, and the other end passes through the adjustment port and is fixedly connected to the limit plate, a ratchet is sleeved on the rotating shaft, an insertion rod is passed through the box body, and a pawl is sleeved on the insertion rod for engaging with the ratchet.
[0014] By adopting the above technical solution, the cooperation of the ratchet, the pawl and the wire rope can control the sliding amount of the abutment rod out of the abutment sleeve, making the adjustment component more precise and improving the user's comfort when riding.
[0015] Optionally, one end of the insertion rod away from the pawl is connected to a pressing block, and a reset member is sleeved between the box body and the pressing block, with one end of the reset member abutting against the box body and the other end abutting against the pressing block.
[0016] By adopting the above technical solution, after adjusting the tension of the brake line body, the adjustment assembly needs to be restored to the initial use state. At this time, the pressing block is pushed to release the limit of the pawl on the ratchet. Then, when the abutment rod is adjusted into place, the pressing block is released. Under the action of the reset member, the pawl and the ratchet are engaged with each other. While improving convenience, it also ensures that the pawl is re-engaged with the ratchet to prevent accidental loosening, thereby ensuring the stability and reliability of the brake system.
[0017] Optionally, a hand wheel is sleeved on one end of the rotating shaft away from the bottom of the box.
[0018] By adopting the above technical solution, the provision of the handwheel makes the operation of the rotating shaft more convenient, improving the convenience and efficiency of adjusting the tension of the brake line. The user can adjust the tension of the brake line by manually rotating the handwheel without the need for professional tools, thereby improving the convenience of adjustment.
[0019] Optionally, a steering indicator head is provided on a side of the handwheel away from the box body.
[0020] By adopting the above technical solution, a steering indicator head is provided on the side of the handwheel away from the box body, so that the user can intuitively see the rotation direction of the handwheel when adjusting the tightness of the brake line, thereby completing the adjustment operation more conveniently and quickly, improving the user experience and adjustment efficiency.
[0021] Optionally, a tensioning column is fixedly connected to the bottom of the box, and the brake line body passes between the tensioning column and the I-shaped wheel.
[0022] By adopting this technical solution, the tensioning post fixed to the bottom of the box ensures a more stable passage of the brake cable through the I-spool, reducing the possibility of cable deviation during adjustment, thereby improving the accuracy and reliability of brake cable tension adjustment. Furthermore, the presence of the tensioning post increases the tension in the brake cable, ensuring the responsiveness and braking force of the brake system.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. When the brake cable is not loose, the adjustment assembly contacts the brake cable, and the torsion spring is under tension. When the brake cable is loose, the torsion spring causes the support ear of the adjustment assembly to rotate on the rotating shaft under the action of torque, thereby continuing to press against the brake cable, thereby adjusting the tension of the brake cable. This allows people to pull the brake pads normally when braking, thus improving the convenience of adjusting the tension of the brake cable.
[0025] 2. When braking, the brake cable is tightened, and the abutment rod slides within the abutment sleeve under the tightening force of the brake cable. When braking is complete, the brake cable returns to its normal state, and the abutment rod is restored under the action of the abutment spring. Riding can also be bumpy, and the cooperation of the abutment rod and the abutment sleeve can reduce the number of times the torsion spring is subjected to force during braking, thereby increasing the service life of the torsion spring.
[0026] 3. After adjusting the tension of the brake cable body, the adjustment assembly needs to be restored to the initial state. At this time, the limit on the ratchet is released by pushing the pressing block. Then, when the abutment rod is adjusted into place, the pressing block is released. Under the action of the reset member, the pawl is engaged with the ratchet, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of this application.
[0028] Figure 2 It is a schematic diagram of the internal structure of this regulating device.
[0029] Figure 3 This is a schematic diagram of the half-section structure of this adjustment component.
[0030] Figure 4 yes Figure 1 A local enlarged view of point A in the middle.
[0031] Explanation of the accompanying reference numerals: 01, brake cable body; 1, adjustment box; 11, box bottom; 12, box body; 13, rotating shaft; 131, torsion spring; 2, adjustment assembly; 21, support ear plate; 22, abutment sleeve; 221, slide groove; 222, fixing plate; 223, adjustment port; 23, abutment rod; 231, limit plate; 232, avoidance groove; 24, abutment spring; 25, I-wheel; 26, wire rope; 3, ratchet; 31, pawl; 32, insertion rod; 33, reset member; 34, pressing block; 4, handwheel; 41, steering indicator head; 5, tensioning column. DETAILED DESCRIPTION
[0032] The present application is further described in detail below with reference to Figures 1-4.
[0033] An embodiment of the present application discloses a brake cable tension adjustment device.
[0034] Reference Figure 1 As shown in Figure 2, a brake cable tension adjustment device includes a brake cable body 01 and an adjustment box 1. The adjustment box 1 includes a box bottom 11 and a box body 12. The box body 12 has threading openings at both the front and rear ends along its length. The brake cable body 01 passes through the threading openings. The box body 12 is detachably connected to the box bottom 11 by screws, which facilitates later disassembly and maintenance. A rotating shaft 13 is rotatably connected to the box bottom 11. An adjustment assembly 2 is rotatably connected to the rotating shaft 13. The adjustment assembly 2 includes two support lugs 21, which are rotatably connected to the rotating shaft 13. A torsion spring 131 is sleeved on the end of the rotating shaft 13 near the box bottom 11. One end of the torsion spring 131 is fixedly connected to the box bottom 11, and the other end is fixedly connected to one of the support lugs 21. The brake cable body 01 abuts against the end of the adjustment assembly 2 away from the support lug 21.
[0035] Reference Figure 1 As shown in Figure 2, when the brake cable body 01 is not loose, it presses against the adjustment assembly 2, applying force to the torsion spring 131. When the brake cable body 01 becomes loose, the torsion force of the torsion spring 131 causes the support lug 21 of the adjustment assembly 2 to rotate, further tightening the brake cable body 01. This increases the tension in the brake cable body 01, allowing the rider to brake normally while riding, and improving the convenience of adjusting the tension of the brake cable body 01.
[0036] Referring to Figures 2 and 3, the adjustment assembly 2 also includes an abutment sleeve 22 and an abutment rod 23. The support lug 21 is fixedly connected to the abutment sleeve 22. The abutment sleeve 22 defines a slot 221, and the abutment rod 23 slides within the slot 221 of the abutment sleeve 22. A limit plate 231 is fixedly connected to the end of the abutment rod 23 that abuts the brake cable body 01. A fixed plate 222 is fixedly connected to the end of the abutment sleeve 22 that abuts the support lug 21. The arrangement of the fixed plate 222 and the limit plate 231 prevents the abutment rod 23 from sliding out of the slot 221. A clearance groove 232 is defined on the end of the abutment rod 23 that abuts the limit plate 231. A spool 25 is rotatably connected within the clearance groove 232, against which the brake cable body 01 abuts. An abutment spring 24 is located within the slot 221, positioned between the abutment sleeve 22 and the limit plate 231.
[0037] Referring to Figures 2 and 3, when braking, the brake cable body 01 is tightened. Since the abutment sleeve 22 and the abutment rod 23 are slidably connected, when the brake cable body 01 is tightened, it pushes the abutment rod 23 to slide within the slide groove 221 of the abutment sleeve 22, thereby imparting a certain amount of displacement during braking. At this time, the abutment spring 24 is in a stressed state. When braking is released, the abutment rod 23 is pushed back by the abutment spring 24, causing the I-shaped pulley 25 on the abutment rod 23 to continue to abut the brake cable body 01, maintaining the tension on the brake cable body 01.
[0038] 2 to 4 , an adjusting opening 223 is formed on one side of the abutting sleeve 22 close to the supporting ear plate 21 , and the adjusting opening 223 allows the sliding groove 221 to communicate with the outside. The cam 221 is fixedly provided with a lever 222 on the upper end of the cam 221 and is secured to the bottom of the cam 221 by the lever 222. The cam 222 is secured to the bottom of the cam 221 by the lever 222.
[0039] Referring to Figures 2 to 4 , when the brake cable body 01 is not loose, the reset member 33 is in a compressed state, and the abutment rod 23 is mostly slidably connected within the abutment sleeve 22. If the brake cable body 01 becomes loose, the user simply pushes the pressing block 34, causing the pawl 31 to contact the stopper on the ratchet wheel 3. The reset member 33 then pushes the abutment rod 23 toward one end of the fixed plate 222 of the abutment sleeve 22, increasing the tension in the brake cable body 01 and adjusting the tension. If the brake cable body 01 is stretched too far, or to reset the adjustment mechanism after a ride, the handwheel 4 can be used to rotate the rotating shaft 13, causing the wire rope 26 to wind around it. The stopper plate 231 abuts the reset member 33, compressing it and facilitating the next use.
[0040] Referring to Figures 1 and 2, a tensioning post 5 is fixedly connected to the bottom 11 of the box, and the brake cable body 01 passes between the tensioning post 5 and the spool 25. In this embodiment, two components are provided, including the rotating shaft 13, adjustment assembly 2, torsion spring 131, fixing plate 222, stop plate 231, wire rope 26, reset member 33, handwheel 4, ratchet 3, pawl 31, insertion rod 32, spool 25, and contact spring 24. The brake cable body 01 is arranged in a serpentine pattern, interlaced along the wiring direction, around the tensioning post 5 and the spool 25. This improves the precision of the adjustment device in adjusting the tension of the brake cable body 01.
[0041] The implementation principle of the brake line tension adjustment device in the embodiment of the present application is as follows:
[0042] During riding, due to frequent braking, especially on bumpy roads, the brake cable body 01 may become loose after prolonged use. In this case, the user only needs to push the pressing block 34 to make the pawl 31 contact the restriction of the ratchet 3, and then the abutment spring 24 in the slide groove 221 pushes the abutment rod 23 to slide in the abutment sleeve 22. This allows the I-shaped wheel 25 on the abutment rod 23 to continue to abut against the brake cable body 01, thereby adjusting the tension of the brake cable body 01.
[0043] If the user pushes the pressing block 34 too much, causing the tension of the brake cable body 01 to be too great, the user can rotate the rotating shaft 13 to make the wire rope 26 coil around the rotating shaft 13. During this process, the abutment rod 23 slides within the abutment sleeve 22, causing the abutment spring 24 to be stressed, changing the sliding amount of the abutment rod 23, thereby adjusting the tension of the brake cable body 01. This improves the convenience of the adjustment device.
[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A brake line tension adjustment device, characterized in that: The invention comprises a brake line body (01) and an adjusting box (1) for the brake line body (01) to pass through, wherein the adjusting box (1) comprises a box bottom (11) and a box body (12) detachably connected to the box bottom (11), a rotating shaft (13) is rotatably connected to the box bottom (11), an adjusting assembly (2) is rotatably connected to the rotating shaft (13), and the adjusting assembly (2) comprises two supporting ear plates (21), the supporting ear plates (21) are rotatably connected to the rotating shaft (13), an end of the adjusting assembly (2) away from the rotating shaft (13) abuts against the brake line body (01), a torsion spring (131) is sleeved on the rotating shaft (13) and connected between the box bottom (11) and one of the supporting ear plates (21).
2. A brake cable tension adjustment device according to claim 1, characterized in that: The adjusting assembly (2) further comprises an abutting sleeve (22) and an abutting rod (23), the supporting ear plate (21) is fixedly connected to the abutting sleeve (22), one end of the abutting rod (23) away from the brake line body (01) is fixedly connected to a limiting plate (231), a sliding groove (221) is provided on the abutting sleeve (22), the limiting plate (231) is slidably connected in the sliding groove (221) of the abutting sleeve (22), one end of the abutting sleeve (22) away from the supporting ear plate (21) is provided with a fixing plate (222) for preventing the abutting rod (23) from detaching from the abutting sleeve (22), and an abutting spring (24) is provided in the sliding groove (221) between the limiting plate (231) and the inner bottom surface of the abutting sleeve (22).
3. A brake cable tension adjustment device according to claim 2, characterized in that: An escape groove (232) is provided at one end of the abutting rod (23) away from the limiting plate (231), and a spool (25) is rotatably connected in the escape groove (232), and the brake line body (01) abuts against the spool (25).
4. A brake cable tension adjustment device according to claim 2, characterized in that: An adjusting port (223) is provided at one end of the abutting sleeve (22) close to the supporting ear plate (21), and the adjusting port (223) is communicated with the slide groove (221). A steel wire rope (26) is wound between the supporting ear plates (21), one end of the steel wire rope (26) is fixedly connected to the rotating shaft (13), and the other end passes through the adjusting port (223) and is fixedly connected to the limiting plate (231). A ratchet (3) is sleeved on the rotating shaft (13), and an insertion rod (32) is inserted through the box body (12). A ratchet pawl (31) that engages with the ratchet (3) is sleeved on the insertion rod (32).
5. A brake cable tension adjustment device according to claim 4, characterized in that: One end of the insertion rod (32) away from the pawl (31) is connected to a pressing block (34), and a reset member (33) is sleeved between the box body (12) and the pressing block (34). One end of the reset member (33) abuts against the box body (12), and the other end abuts against the pressing block (34).
6. A brake cable tension adjustment device according to claim 1, characterized in that: A hand wheel (4) is sleeved on one end of the rotating shaft (13) away from the box bottom (11).
7. A brake cable tension adjustment device according to claim 6, characterized in that: A steering indicator head (41) is provided on the side of the hand wheel (4) away from the box body (12).
8. The brake cable tension adjustment device according to claim 1, characterized in that: A tensioning column (5) is fixedly connected to the box bottom (11), and the brake line body (01) passes between the tensioning column (5) and the I-shaped wheel (25).