A test tool for bicycle brakes

Abstract

This invention discloses a testing fixture for bicycle brakes, comprising a flexible interchangeable component. The flexible interchangeable component includes a U-shaped frame, a rotating roller, a hemispherical block test plate, a rectangular block test plate, a smooth test plate, and locking blocks. The support frame is movably connected to the U-shaped frame at both ends via shafts. The motor output end is fixedly connected to the side shaft of the U-shaped frame. Locking blocks are engaged between the U-shaped frames, and rotating rollers are fixedly connected between the locking blocks. The outer ring of the rotating rollers is fixedly connected to the hemispherical block test plate, the rectangular block test plate, and the smooth test plate. The hemispherical and rectangular block test plates are arranged alternately to simulate bumpy road conditions, while the smooth test plate simulates a smooth paved road surface. The motor drives the U-shaped frame to rotate the rotating rollers synchronously, allowing for switching between various road conditions to conduct brake tests, significantly improving the completeness and reference value of bicycle brake performance test data.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically to a testing fixture for bicycle brakes. Background Technology

[0002] Bicycle brake testing fixtures are specialized jigs designed to simulate real-world bicycle riding conditions and standardize the testing of disc brake performance. They eliminate testing errors caused by manual operation and differences in bicycle assembly, and are used for factory quality inspection, R&D verification, and third-party testing.

[0003] In existing bicycle brake testing fixtures, the rotating roller that drives the wheel to rotate is usually fixed with a single shape. This setting can only realize the braking test of the wheel on a single road surface, thus affecting the comprehensiveness of the test results. Therefore, a new structure is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a testing fixture for bicycle brakes, thereby solving the problems mentioned in the background section. To solve these technical problems, this invention is achieved through the following technical solution: This invention relates to a testing fixture for bicycle brakes, comprising: A support drive assembly includes a base, a support frame, a bending plate, and a motor. The support frame is fixedly connected to both sides of the top of the base, one end of the bending plate is fixedly connected to the side of the support frame, and the other end of the bending plate is fixedly connected to the motor. It also includes a flexible replacement component, which includes a U-shaped frame, a rotating roller, a hemispherical block test plate, a rectangular block test plate, a smooth test plate, and a locking block. The two ends of the support frame are movably connected to the U-shaped frame through shafts. The motor output end is fixedly connected to the side shaft of the U-shaped frame. The locking blocks are locked between the U-shaped frames. The rotating roller is fixedly connected between the locking blocks. The outer ring of the rotating roller is fixedly connected to the hemispherical block test plate, the rectangular block test plate, and the smooth test plate.

[0005] Preferably, there are a total of two rotating rollers, one of which is fixedly connected to a hemispherical block test plate and a rectangular block test plate on its outer ring, and the hemispherical block test plate and the rectangular block test plate are arranged alternately.

[0006] Preferably, the support drive assembly further includes a hydraulic cylinder and a clamping block, with the hydraulic cylinder fixedly connected to both sides of the top center of the base, and the clamping block fixedly connected to the telescopic end of the hydraulic cylinder.

[0007] Preferably, an arc-shaped groove is formed at one end of the clamping block.

[0008] Preferably, it also includes a quick-release assembly, which includes a first locking groove, a second locking groove, and a locking rod. The first locking groove is opened through both ends of the U-shaped frame, and the second locking groove is opened through the middle of the card block. The locking rod is movably inserted between the first locking groove and the second locking groove.

[0009] Preferably, the quick-assembly assembly further includes an L-shaped plate, a guide groove, a baffle, and a spring. The L-shaped plate is fixedly connected to the side of the U-shaped frame. A guide groove is formed through the L-shaped plate. A locking rod is movably connected in the guide groove. The baffle is fixedly connected to the outer ring of the locking rod. The spring is movably sleeved on the outer ring of the locking rod.

[0010] Preferably, the locking rod is configured in a T-shape.

[0011] The present invention has the following beneficial effects: This invention features a flexible, interchangeable component consisting of a U-shaped frame, a locking block, a rotating roller, a hemispherical test plate, a rectangular test plate, and a smooth test plate. This breaks away from the limitations of traditional fixtures that only offer a single test surface. The hemispherical and rectangular test plates are arranged alternately to simulate bumpy road conditions, while the smooth test plate simulates a smooth, paved road surface. A motor drives the U-shaped frame to rotate the rotating roller synchronously, allowing for switching between various road conditions to conduct brake tests. This significantly improves the completeness and reference value of bicycle brake performance test data. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall invention; Figure 2 This is a schematic diagram of the movable connection of the locking rod in this utility model; Figure 3 This is a schematic diagram showing the connection between the hemispherical block test plate and the rectangular block test plate of the present invention; Figure 4 This is a schematic diagram of the connection of the smooth test plate of the present invention.

[0014] The attached diagram lists the components represented by each number as follows: 101. Base; 102. Support frame; 103. Bending plate; 104. Motor; 105. Hydraulic cylinder; 106. Clamping block; 201. U-shaped frame; 202. Rotating roller; 203. Hemispherical block test plate; 204. Rectangular block test plate; 205. Smooth test plate; 206. Clamping block; 301. First locking groove; 302. Second locking groove; 303. Locking rod; 304. L-shaped plate; 305. Guide groove; 306. Baffle; 307. Spring. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] Please see Figure 1-4 As shown, the present invention is a testing fixture for bicycle brakes, comprising: The support drive assembly includes a base 101, a support frame 102, a bending plate 103, and a motor 104. The support frame 102 is fixedly connected to both sides of the top of the base 101, one end of the bending plate 103 is fixedly connected to the side of the support frame 102, and the other end of the bending plate 103 is fixedly connected to the motor 104. It also includes a flexible replacement component, which includes a U-shaped frame 201, a rotating roller 202, a hemispherical block test plate 203, a rectangular block test plate 204, a smooth test plate 205, and a locking block 206. The two ends of the support frame 102 are movably connected to the U-shaped frame 201 through shafts. The output end of the motor 104 is fixedly connected to the side shaft of the U-shaped frame 201. The locking blocks 206 are locked between the U-shaped frames 201. The rotating roller 202 is fixedly connected between the locking blocks 206 respectively. The outer ring of the rotating roller 202 is fixedly connected to the hemispherical block test plate 203, the rectangular block test plate 204, and the smooth test plate 205 respectively. The support frame 102 ensures the installation of the bending plate 103, and the bending plate 103 ensures the secure installation of the motor 104. The motor 104 works in conjunction with the side shaft of the U-shaped frame 201 to drive the U-shaped frame 201 to rotate. The U-shaped frame 201 works in conjunction with the locking block 206 to ensure the rotation of the rotating roller 202, thereby ensuring the rotation of the spherical block test plate 203, the rectangular block test plate 204, and the smooth test plate 205, thus enabling the bicycle to be tested on different road surfaces.

[0018] There are a total of two rotating rollers 202. One of them is fixedly connected to the hemispherical block test plate 203 and the rectangular block test plate 204 on its outer ring, and the hemispherical block test plate 203 and the rectangular block test plate 204 are arranged alternately. The two rotating rollers 202 provide a guarantee for the centralized installation of the hemispherical block test plate 203 and the rectangular block test plate 204, and at the same time provide a guarantee for the individual installation of the smooth test plate 205. The smooth test plate 205 simulates a flat road surface, while the hemispherical block test plate 203 and the rectangular block test plate 204 simulate a pothole road surface.

[0019] The support drive assembly also includes a hydraulic cylinder 105 and a clamping block 106. The hydraulic cylinder 105 is fixedly connected to both sides of the top center of the base 101, and the clamping block 106 is fixedly connected to the telescopic end of the hydraulic cylinder 105. An arc-shaped groove is opened at one end of the clamping block 106. The hydraulic cylinder 105 provides a guarantee for the clamping block 106 to securely hold the bicycle, and the arc-shaped groove on the clamping block 106 can further enhance the stability of the connection with the frame.

[0020] Working principle: Before testing, the bicycle frame is placed in the middle of the base 101. The hydraulic cylinders 105 on both sides are activated. The telescopic ends of the hydraulic cylinders 105 push the clamping block 106. The clamping block 106 clamps and fixes the bicycle frame by the arc groove at its end, completing the positioning of the whole vehicle. Then, the motor 104 is started. The output end of the motor 104 drives the side shaft of the U-shaped frame 201 to rotate. The U-shaped frame 201 drives the internal locking block 206 to rotate synchronously. The locking block 206 carries the rotating roller 202 to rotate together. One of the rotating rollers 202 has hemispherical block test plates 203 and rectangular block test plates 204 arranged alternately on its outer ring to simulate uneven road surfaces. The other rotating roller 202 is equipped with a smooth test plate 205 to simulate a flat paved road surface. The test plate on the surface of the rotating roller 202 is in contact with the bicycle tire to simulate the road conditions of the vehicle driving. The operator controls the bicycle brakes to complete the braking performance test under different road conditions. This step can switch between multiple road conditions to carry out brake tests, which greatly improves the completeness and reference value of the bicycle braking performance test data.

[0021] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes: The quick-release assembly includes a first locking groove 301, a second locking groove 302, and a locking rod 303. The first locking groove 301 is opened through both ends of the U-shaped frame 201, and the second locking groove 302 is opened through the middle of the locking block 206. The locking rod 303 is movably inserted between the first locking groove 301 and the second locking groove 302. The locking rod 303 works in conjunction with the first locking groove 301 and the second locking groove 302 to ensure the engagement and disassembly of the locking block 206, thereby ensuring the replacement of the two rotating rollers 202.

[0022] The quick-assembly assembly also includes an L-shaped plate 304, a guide groove 305, a baffle 306, and a spring 307. The side of the U-shaped frame 201 is fixedly connected to the L-shaped plate 304. The guide groove 305 is opened through the L-shaped plate 304. The locking rod 303 is movably connected in the guide groove 305. The outer ring of the locking rod 303 is fixedly connected to the baffle 306. The outer ring of the locking rod 303 is movably sleeved with the spring 307. The guide groove 305 on the L-shaped plate 304 ensures the guiding movement of the locking rod 303. The baffle 306 limits the spring 307. The force generated by the spring 307 firmly inserts the locking rod 303 into the first locking groove 301 and the second locking groove 302.

[0023] The locking rod 303 is designed with a T-shaped structure. The locking lever 303 has a T-shaped structure, which makes it easy for the user to pull it, thereby speeding up the replacement rate between the rotating rollers 202.

[0024] Working principle: When the rotating roller 202 needs to be replaced, pull the T-shaped locking rod 303 outward. The locking rod 303 slides outward along the guide groove 305 on the L-shaped plate 304. The baffle 306 on the outer ring of the locking rod 303 simultaneously compresses the spring 307. The spring 307 is compressed. When the locking rod 303 is completely disengaged from the first locking groove 301 of the U-shaped frame 201 and the second locking groove 302 of the locking block 206, the locking limit between the U-shaped frame 201 and the locking block 206 is released. The locking block 206 and the rotating roller 202 fixed on it can then be removed. After replacing the rotating roller 202 with one suitable for the road surface type, align the new locking block 206. The U-shaped frame 201 has an internal slot that aligns with the first locking slot 301 and the second locking slot 302. The locking rod 303 is released, and the compressed spring 307 rebounds, pushing the baffle 306 to insert the locking rod 303 inwards. The locking rod 303 simultaneously passes through both sets of locking slots, re-locking the U-shaped frame 201 and the locking block 206. This completes the quick assembly and disassembly of the rotating roller 202, allowing for the switching of different road surface simulation test modules. In this step, after replacing the roller body of a different test panel, the locking rod 303 is released, and the spring 307 automatically rebounds to lock, eliminating the need for additional disassembly tools. This significantly shortens the switching time between different road surface test modules and improves testing efficiency.

[0025] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A testing fixture for bicycle brakes, characterized in that, include: The support drive assembly includes a base (101), a support frame (102), a bending plate (103), and a motor (104). The support frame (102) is fixedly connected to both sides of the top of the base (101). One end of the bending plate (103) is fixedly connected to the side of the support frame (102), and the other end of the bending plate (103) is fixedly connected to the motor (104). It also includes a flexible replacement component, which includes a U-shaped frame (201), a rotating roller (202), a hemispherical block test plate (203), a rectangular block test plate (204), a smooth test plate (205), and a locking block (206). The two ends of the support frame (102) are movably connected to the U-shaped frame (201) through shafts. The output end of the motor (104) is fixedly connected to the side shaft of the U-shaped frame (201). The locking blocks (206) are locked between the U-shaped frames (201). The rotating roller (202) is fixedly connected between the locking blocks (206). The outer ring of the rotating roller (202) is fixedly connected to the hemispherical block test plate (203), the rectangular block test plate (204), and the smooth test plate (205).

2. The testing fixture for bicycle brakes according to claim 1, characterized in that: The rotating roller (202) is provided in a total of two, one of which is fixedly connected to the hemispherical block test plate (203) and the rectangular block test plate (204) on its outer ring, and the hemispherical block test plate (203) and the rectangular block test plate (204) are arranged alternately.

3. The testing fixture for bicycle brakes according to claim 1, characterized in that: The support drive assembly also includes a hydraulic cylinder (105) and a clamping block (106). The hydraulic cylinder (105) is fixedly connected to both sides of the top center of the base (101), and the clamping block (106) is fixedly connected to the telescopic end of the hydraulic cylinder (105).

4. The testing fixture for bicycle brakes according to claim 3, characterized in that: An arc-shaped groove is provided at one end of the clamping block (106).

5. A testing fixture for bicycle brakes according to claim 1, characterized in that: It also includes a quick-release assembly, which includes a first locking groove (301), a second locking groove (302), and a locking rod (303). The first locking groove (301) is opened through both ends of the U-shaped frame (201), and the second locking groove (302) is opened through the middle of the card block (206). The locking rod (303) is movably inserted between the first locking groove (301) and the second locking groove (302).

6. A testing fixture for bicycle brakes according to claim 5, characterized in that: The quick-assembly assembly also includes an L-shaped plate (304), a guide groove (305), a baffle (306), and a spring (307). The side of the U-shaped frame (201) is fixedly connected to the L-shaped plate (304). The guide groove (305) is opened through the L-shaped plate (304). The locking rod (303) is movably connected in the guide groove (305). The baffle (306) is fixedly connected to the outer ring of the locking rod (303). The spring (307) is movably sleeved on the outer ring of the locking rod (303).

7. A testing fixture for bicycle brakes according to claim 6, characterized in that: The locking rod (303) is T-shaped in shape.

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