A quick-release caliper brake for a bicycle wheel

Abstract

The utility model relates to a bicycle brake and technical field, specifically disclose a bicycle wheel quick release formula pincer brake, including left arm, right arm, central shaft, reset spring, brake lining assembly brake body that is composed, left arm and right arm bottom end symmetry is equipped with brake lining assembly, right arm other end is equipped with brake cable fixed structure with left arm and is equipped with brake cable support structure and adapts corresponding, brake cable fixed structure includes: with eccentric adjusting assembly and fixed wire subassembly connected in eccentric adjusting assembly one side of right arm pivot connection, eccentric adjusting assembly configuration is the brake cable on the tension fixed subassembly makes two brake lining assembly be in the braking state, adjusts the brake cable on the slack fixed wire subassembly and makes left arm, right arm bottom end be in the open state for two brake lining assembly between the wheel unloading, reached under the condition without removing the brake cable, can change the brake cable's slack, tight state quickly, the efficiency of wheel group unloading, assembling is improved quickly.

Description

Technical Field

[0001] This invention relates to the field of bicycle brakes and related technologies, specifically to a quick-release clamp brake for bicycle wheels. Background Technology

[0002] Clamp brakes are generally used on bicycles and racing bikes as braking components. Their structure is generally as follows: CN219687544U An improved caliper brake, which is fastened to the front and rear forks of the vehicle body by a through screw set at the center of the rear side of the caliper brake. The brake cable is adjusted and tightened so that the brake blocks set symmetrically at the bottom clamp and brake the wheelset. Because the gaps between the front and rear wheelsets and the front and rear forks of a bicycle are very small, the brake cables must be loosened before the pivot brake caliper arms can be unfolded to make room for the wheelset to be easily removed and installed. After the wheelset is installed, the brake cables must be installed, adjusted and tightened. Moreover, loosening and tightening the brake cables often requires the assistance of tools, making the removal and replacement of the wheelset cumbersome, inconvenient and inefficient.

[0003] Therefore, there is an urgent need in this field for a method that can quickly change the tightness of the brake cable, thereby rapidly improving the efficiency of wheelset disassembly and assembly without removing the brake cable. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a quick-release caliper brake for bicycle wheels. It allows for rapid adjustment of the brake cable's tension without disconnecting the cable, significantly improving the efficiency of wheelset assembly and disassembly. This overcomes the problem of existing caliper brakes requiring auxiliary tools to loosen the brake cable before creating space for wheelset assembly and disassembly, which makes the process inconvenient.

[0005] To achieve the above objectives, this application adopts the following technical solution: This invention relates to a quick-release caliper brake for bicycle wheels, comprising a brake body consisting of a left arm, a right arm, a central shaft, a return spring, and brake pad assemblies. Brake pad assemblies are symmetrically arranged at the bottom ends of the left and right arms. A brake cable fixing structure is provided at the other end of the right arm, which is adapted to correspond to the brake cable support structure provided on the left arm. The brake cable fixing structure includes an eccentric adjustment assembly pivotally connected to the right arm and a cable fixing assembly connected to one side of the eccentric adjustment assembly. The eccentric adjustment assembly is configured to tension the brake cable on the fixing assembly so that the two brake pad assemblies are in a ready-to-brake state, and to adjust and loosen the brake cable on the cable fixing assembly so that the bottom ends of the left and right arms are in an open state to allow the wheel to be released between the two brake pad assemblies.

[0006] Further: One end of the right arm is provided with a connecting through hole, and one side of the connecting through hole is provided with an abutment limiting part. The eccentric adjustment component is adapted to and rotatably connected to the connecting through hole, and the wire fixing component is connected to the rear end of the eccentric adjustment component.

[0007] Further: The eccentric adjustment assembly includes: a connector, an eccentric adjustment seat, a T-shaped spacer, and a limiting cam. The eccentric adjustment seat includes: an annular actuating part, a columnar pivoting part coaxially arranged with the annular actuating part, a stop part arranged on one side of the bottom end of the columnar pivoting part, and an eccentric connecting hole penetrating one side of the axis of the eccentric adjustment seat. The T-shaped spacer is sleeved between the columnar pivoting part and the connecting through hole. The limiting cam has a stop hole adapted to the stop part in the middle. The limiting cam has a buckle part adapted to the abutting limiting part on the outer side. The wire fixing assembly is connected to the eccentric adjustment seat through the connector.

[0008] Furthermore: the stop portion is formed by the notch surface of the bottom surface of the protruding columnar pivot portion and the extension of one side of the columnar pivot portion; the stop hole is a semi-circular hole or an arc-shaped hole adapted to the stop portion; the eccentric connecting hole is opened on one side of the stop portion.

[0009] Furthermore, the eccentric connecting hole is provided with a countersunk hole structure at one end near the annular actuating part, and an actuating handle is also provided on one side of the annular actuating part.

[0010] Furthermore: Two T-shaped spacers are provided and are arranged opposite to each other on the columnar pivot part, and the flange surfaces of the two T-shaped spacers respectively abut against the annular actuating part and the limiting cam side.

[0011] Further: The wire fixing assembly includes: a wire pressing seat, a wire pressing plate, and fastener bolts. The wire pressing seat is provided with a wire pressing part adapted to the wire pressing plate. The wire pressing part is provided with a threaded hole adapted to the fastener bolts. One side of the wire pressing seat is provided with a connecting shaft part adapted to the eccentric connecting hole. The center of the connecting shaft part is provided with a threaded connecting hole adapted to the connector.

[0012] Furthermore, it also includes a side shaft and a connecting arm. One end of the connecting arm is pivotally connected to the left arm via a central shaft. The other end of the connecting arm is rotatably connected to the right arm via a side shaft on one side of the central shaft, and one end of the left arm is positioned between the right arm and the connecting arm. The other end of the left arm abuts against a limiting boss provided on the rear side of the right arm. A return spring is provided at the front end of the central shaft, and both ends abut against the left arm and the connecting arm respectively.

[0013] Compared with the prior art, the present invention has the following advantages: This application provides a brake cable support structure and a brake cable fixing structure at corresponding positions on the left and right arms to secure and connect the brake cable, tightening it within the braking stroke range. Braking the bicycle wheel can be achieved by manipulating the handle connected to the other end of the brake cable. An eccentric adjustment component, rotatable relative to the right arm, is installed on the brake cable fixing structure, with a cable fixing component on one side to secure the brake cable. Rotating the eccentric adjustment component causes the brake cable on the cable fixing component to rotate eccentrically, loosening the tensioned brake cable. The left and right arms then open under the action of a return spring, moving away from the wheel and creating space for wheel removal and installation. After wheel removal and installation, returning the eccentric adjustment component to its original position allows for braking without repeated cable tightening adjustments. Wheel removal and installation, as well as brake cable tightening, are convenient, time-saving, and labor-saving. The eccentric adjustment component allows for changing the brake cable's tension without removing the brakes or brake cable, thus improving the efficiency of wheelset removal and installation.

[0014] By setting the side axis and connecting arm, the left and right arms rotate around the central axis and the side axis respectively, with the point where the left and right arms meet as the pivot point A. This extends the length of the braking power arm, thereby adjusting and improving the ratio of the power arm to the resistance arm, reducing the braking force required by this application. Riders only need a small braking force to achieve the ideal braking effect. At the same time, the setting of the pivot point A enables the left and right arms to move in sync, improving the stability of braking with both arms. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a partial exploded view of the present invention; Figure 3 This is an exploded view of the brake wire fixing structure of the present invention; Figure 4 This is a schematic diagram of the explosion structure of the brake wire fixing structure of the present invention from another direction; Figure 5 This is a three-dimensional sectional view of the brake cable fixing structure of the present invention.

[0016] Attached image labels: Left arm 1; Right arm 2; Connecting through hole 21; Abutment limiting part 22; Limiting boss 23; Central shaft 3; Return spring 4; Brake skin assembly 5; Brake cable fixing structure 6; Eccentric adjustment assembly 61; Connector 611; Eccentric adjustment seat 612; Annular actuating part 6121; Columnar pivoting part 6122; Stopping part 6123; Eccentric connecting hole 6124; Actuating handle 6125; T-shaped spacer 613; Limiting cam 614; Stopping hole 6141; Buckle part 6142; Cable fixing assembly 62; Cable pressing seat 621; Cable pressing part 6211; Threaded hole 6212; Connecting shaft part 6213; Threaded connecting hole 6214; Cable pressing plate 622; Fastener bolt 623; Brake cable support structure 7; Side shaft 8; and connecting rod arm 9. Detailed Implementation

[0017] To enhance understanding of the present invention, the invention will be further described in detail below with reference to the accompanying drawings. This embodiment is only used to explain the invention and does not constitute a limitation on the scope of protection of the invention.

[0018] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the combination or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1-5The diagram shows a quick-release caliper brake for bicycle wheels, comprising a brake body consisting of a left arm 1, a right arm 2, a central shaft 3, a return spring 4, and a brake pad assembly 5. Brake pad assemblies 5 are symmetrically arranged at the bottom ends of the left arm 1 and the right arm 2. A brake cable fixing structure 6 is provided at the other end of the left arm 1, corresponding to a brake cable support structure 7 on the right arm 2. The brake cable fixing structure 6 includes an eccentric adjustment assembly 61 pivotally connected to the right arm 2 and a cable fixing assembly 62 connected to one side of the eccentric adjustment assembly 61. The brake cable on the tensioning and fixing assembly 62 is configured to put the two brake pad assemblies 5 in a ready-to-brake state, and the brake cable on the loosening and fixing assembly 62 is adjusted to put the bottom ends of the left arm 1 and the right arm 2 in an open state to allow the wheel between the two brake pad assemblies 5 to be unloaded; one end of the right arm 2 is provided with a connecting through hole 21, and a stop limiting part 22 is provided on one side of the connecting through hole 21. The eccentric adjustment assembly 61 is adapted to be rotatably connected to the connecting through hole 21, and the fixing assembly 62 is connected to the rear end of the eccentric adjustment assembly 61; this application achieves this by using the left arm 1 and the right arm 2 Brake cable support structure 7 and brake cable fixing structure 6 are respectively set at corresponding positions to fix and support the brake cable, and tighten the brake cable within the braking stroke range. The bicycle wheel can be braked by operating the handle connected to the other end of the brake cable. An eccentric adjustment component 61 that can rotate relative to the right arm 2 is set on the brake cable fixing structure 6, and a cable fixing component 62 that fixes the brake cable is set on one side of the eccentric adjustment component 61. Rotating the eccentric adjustment component 61 causes the brake cable on the cable fixing component 62 to rotate eccentrically, so that the taut brake cable is eccentrically loosened. Under the action of the return spring, the left and right arms open away from the wheel and make room for the wheel to be removed and installed. After the wheel is removed and installed, simply turn the eccentric adjustment component 61 back to its original position to perform the braking operation. There is no need to repeatedly adjust the brake cable tension. The wheel removal and installation and brake cable tensioning operations are time-saving, labor-saving, convenient and quick. The setting of the eccentric adjustment component can easily and easily change the looseness and tightness of the brake cable, thereby improving the efficiency of wheelset removal and installation.

[0020] Specifically, the eccentric adjustment assembly 61 includes: a connector 611, an eccentric adjustment seat 612, a T-shaped spacer 613, and a limiting cam 614. The eccentric adjustment seat 612 includes: an annular actuating part 6121, a columnar pivoting part 6122 coaxially arranged with the annular actuating part 6121, a stop part 6123 disposed on one side of the bottom end of the columnar pivoting part 6122, and an eccentric connecting hole 6124 penetrating one side of the axis of the eccentric adjustment seat 6122. The diameter of the annular actuating part 6121 is larger than that of the connecting through hole 21, and the diameter of the columnar pivoting part 6122 is smaller than that of the connecting through hole 21. In the connecting hole 21; to avoid wear between the cylindrical pivot part 6122 and the connecting hole 21 during rotation, and to improve the smoothness of rotation and positioning effect, a T-shaped spacer 613 is fitted between the cylindrical pivot part 6122 and the connecting hole 21; the middle of the limiting cam 614 is provided with a stop hole 6141 adapted to the stop part 6123, and the outer side of the limiting cam 614 is provided with a buckling part 6142 adapted to the abutting limiting part 22, wherein: the buckling part 6142 is set to ensure that when it abuts the abutting limiting part 22, the brake cable is in the tightest position at the farthest eccentricity, and when the eccentricity adjusting seat 612 is rotated, the brake cable is in a slowly tightened position. The wire is stretched, and when rotated 180 degrees, it is at its maximum loosening position, which is controlled by the return spring 4. The limiting cam 614 is fitted onto the other end of the stop part 6123 and abuts against the wire fixing assembly 62. Preferably, the limiting cam 614 and the T-shaped spacer 613 are made of plastic. The wire fixing assembly 62 is connected to the eccentric adjustment seat 612 via a connector 611, which is a bolt. The eccentric connection hole 6124 is a countersunk hole structure at the end near the annular actuating part 6121. The wire fixing assembly 62 includes: a wire pressing seat 621, a wire pressing plate 622, and fastener bolts 623. The wire pressing base 621 is provided with a wire pressing part 6211 that is adapted to the wire pressing plate 622. The wire pressing part 6211 is provided with a threaded hole 6212 adapted to the fastener bolt 623. The wire pressing base 621 is provided with a connecting shaft part 6213 adapted to the eccentric connecting hole 6124 on one side. The center of the connecting shaft part 6213 is provided with a threaded connecting hole 6214 adapted to the connector 611. The wire pressing base 621 is designed as a semi-cylindrical structure coaxial with the connecting shaft part 6213, and its diameter is larger than that of the connecting shaft part 6213. When connected, the inner end of the wire pressing base 621 abuts against the outside of the stop part 6123 and the limiting cam 614.

[0021] An alternative implementation, such as Figure 3-5 As shown: the stop part 6123 is formed by the notch surface of the bottom surface of the protruding columnar pivot part and the extension of one side of the columnar pivot part; the stop hole 6141 is a semi-circular hole or an arc-shaped hole that fits the stop part 6123; the eccentric connecting hole 6124 is opened on one side of the stop part 6123.

[0022] An alternative implementation, such as Figure 1-4 As shown: To improve the convenience of rotation operation, a toggle handle 6125 is also provided on one side of the annular toggle part 6121.

[0023] An alternative implementation, such as Figure 3-5 As shown: Two T-shaped spacers 613 are provided and are arranged opposite to each other on the columnar pivot part 6122. The flange surfaces of the two T-shaped spacers 613 abut against one side of the annular actuating part 6121 and the limiting cam 614, respectively.

[0024] An alternative implementation, such as Figure 3-5 As shown, it also includes a side shaft 8 and a connecting arm 9. The connecting arm 9 is pivotally connected to the left arm 1 at one end via a central shaft 3. The other end of the connecting arm 9 is rotatably connected to the right arm 2 on one side of the central shaft 3 via the side shaft 8, with one end of the left arm 1 positioned between the right arm 2 and the connecting arm 9. The other end of the left arm 1 abuts against a limiting boss 23 located on the rear side of the right arm 2. A return spring 4 is located at the front end of the central shaft 3, with both ends abutting against the left arm 1 and the connecting arm 9 respectively. By setting the side shaft 8 and the connecting arm 9, the left and right arms rotate around the central shaft 3 and the side shaft 8 respectively, with the point where the left and right arms abut as the pivot point A. This extends the length of the braking power arm, thereby adjusting and improving the ratio of the power arm to the resistance arm, reducing the braking force of this application. The rider only needs a small braking force to achieve the ideal braking effect. At the same time, the setting of the pivot point A allows the left and right arms to move synchronously, improving the braking stability of both arms.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of the present invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A quick-release caliper brake for bicycle wheels, comprising a brake body consisting of a left arm (1), a right arm (2), a central shaft (3), a return spring (4), and a brake pad assembly (5), wherein the brake pad assemblies (5) are symmetrically arranged at the bottom ends of the left arm (1) and the right arm (2), and a brake cable fixing structure (6) is provided at the other end of the right arm (2) and is adapted to correspond with the brake cable support structure (7) provided on the left arm (1), characterized in that: The brake cable fixing structure (6) includes: an eccentric adjustment assembly (61) pivotally connected to the right arm (2) and a cable fixing assembly (62) connected to one side of the eccentric adjustment assembly (61). The eccentric adjustment assembly (61) is configured to tension the brake cable on the fixing assembly (62) so that the two brake pad assemblies (5) are in a ready-to-brake state, and to adjust and loosen the brake cable on the cable fixing assembly (62) so that the bottom ends of the left arm (1) and the right arm (2) are in an open state for the wheel between the two brake pad assemblies (5) to be unloaded.

2. The quick-release clamp brake for bicycle wheels according to claim 1, characterized in that: The right arm (2) has a connecting through hole (21) at one end, and a stop limiting part (22) is provided on one side of the connecting through hole (21). The eccentric adjustment component (61) is adapted to rotate and connected to the connecting through hole (21), and the fixed wire component (62) is connected to the rear end of the eccentric adjustment component (61).

3. The quick-release clamp brake for bicycle wheels according to claim 2, characterized in that: The eccentric adjustment assembly (61) includes: a connector (611), an eccentric adjustment seat (612), a T-shaped spacer (613), and a limiting cam (614). The eccentric adjustment seat (612) includes: an annular actuating part (6121), a columnar pivoting part (6122) coaxially arranged with the annular actuating part (6121), a stop part (6123) arranged on one side of the bottom end of the columnar pivoting part (6122), and a through part arranged on one side of the axis of the eccentric adjustment seat (612). The eccentric connecting hole (6124) is provided. The T-shaped spacer (613) is sleeved between the columnar pivot part (6122) and the connecting through hole (21). The middle part of the limiting cam (614) is provided with a stop hole (6141) adapted to the stop part (6123). The outer side of the limiting cam (614) is provided with a buckle part (6142) adapted to the abutting limiting part (22). The wire fixing assembly (62) is connected to the eccentric adjusting seat (612) through the connector (611).

4. The quick-release clamp brake for bicycle wheels according to claim 3, characterized in that: The stop part (6123) is formed by the notch surface of the bottom surface of the protruding columnar pivot part and the extension of one side of the columnar pivot part; the stop hole (6141) is a semi-circular hole or an arc-shaped hole adapted to the stop part (6123); the eccentric connecting hole (6124) is opened on one side of the stop part (6123).

5. The quick-release clamp brake for bicycle wheels according to claim 4, characterized in that: The eccentric connecting hole (6124) is provided with a countersunk hole structure at one end near the annular actuating part (6121), and an actuating handle (6125) is also provided on one side of the annular actuating part (6121).

6. The quick-release clamp brake for bicycle wheels according to claim 3, characterized in that: Two T-shaped spacers (613) are provided and are arranged opposite to each other on the columnar pivot (6122). The flange surfaces of the two T-shaped spacers (613) respectively abut against one side of the annular actuating part (6121) and the limiting cam (614).

7. The quick-release clamp brake for bicycle wheels according to claim 1, characterized in that: The wire fixing assembly (62) includes: a wire clamping seat (621), a wire clamping plate (622), and a fastener bolt (623). The wire clamping seat (621) is provided with a wire clamping part (6211) adapted to the wire clamping plate (622). The wire clamping part (6211) is provided with a threaded hole (6212) adapted to the fastener bolt (623). A connecting shaft part (6213) adapted to the eccentric connecting hole (6124) is provided on one side of the wire clamping seat (621). A threaded connecting hole (6214) adapted to the connecting member (611) is provided at the center of the connecting shaft part (6213).

8. The bicycle wheel quick-release clamp brake according to any one of claims 1-7, characterized in that: It also includes a side shaft (8) and a connecting arm (9). The connecting arm (9) is pivotally connected to the left arm (1) at one end via a central shaft (3). The other end of the connecting arm (9) is rotatably connected to the right arm (2) via the side shaft (8) on one side of the central shaft (3), and one end of the left arm (1) is placed between the right arm (2) and the connecting arm (9). The other end of the left arm (1) abuts against the limiting boss (23) provided on the rear side of the right arm (2). The return spring (4) is provided at the front end of the central shaft (3) and its two ends abut against the left arm (1) and the connecting arm (9) respectively.

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