Special tool for detecting tension of bicycle spoke

Abstract

The utility model discloses a bicycle spoke tension detection special tool comprising a measuring assembly, the measuring assembly comprises a first handle, and the outer surface of the first handle is fixedly provided with a tension test meter. The main connecting rod rotates anticlockwise to drive the auxiliary connecting rod to move, the auxiliary connecting rod drives the second adjusting sleeve to rotate clockwise by means of the push rod, and then the transmission belt drives the third adjusting sleeve to rotate clockwise. The first detection screw and the second detection screw move together to drive the second detection screw and the third detection screw to move towards the first adjusting sleeve, so that the effect of effectively clamping the spoke from multiple sides is achieved, the second detection screw and the third detection screw move together with the first detection screw, the spoke is stably clamped in the middle, and the detection accuracy is improved. Therefore, the tension of the spoke can be accurately detected by the tension test meter, and the reliability and accuracy of spoke tension detection are improved.

Description

Technical Field

[0001] This utility model relates to the field of bicycle repair and testing technology, and in particular to a special tool for testing bicycle spoke tension. Background Technology

[0002] With the development of bicycle manufacturing technology, the performance requirements for bicycles are becoming increasingly demanding, making precise control of spoke tension even more crucial. For example, high-performance bicycles require spokes to withstand higher stresses during riding, thus the accuracy of spoke tension directly affects the bicycle's safety and riding performance. However, existing testing tools with similar structures still have many shortcomings in practical use. For instance, in the spoke clamping process, the testing screws may not work well together, potentially resulting in uneven clamping or inaccurate spoke clamping. Therefore, a dedicated tool for testing bicycle spoke tension needs to be designed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a special tool for testing the tension of bicycle spokes.

[0004] This utility model is achieved using the following technical solution:

[0005] A special tool for testing bicycle spoke tension includes a measuring component. The measuring component includes a first handle, on the outer surface of which a tension test gauge is fixedly mounted. A second handle is rotatably mounted on the outer surface of the first handle, and a limit rod is fixedly mounted on the outer surface of the second handle. The tool also includes:

[0006] A first fixing component includes a screw mounting base fixedly mounted on the outer surface of a first handle, wherein a first detection screw is internally threaded onto the screw mounting base, and a main connecting rod is provided at the rear end of the first detection screw.

[0007] The second fixing component includes an auxiliary connecting rod fixedly installed on the outer surface of the main connecting rod. The bottom of the auxiliary connecting rod is provided with a second adjusting sleeve. The interior of the second adjusting sleeve is provided with a second detection screw. The bottom of the second detection screw is provided with a third detection screw via a transmission belt.

[0008] In a further improvement, a first adjusting sleeve is threaded onto the outer surface of the first detection screw, and a main connecting rod is fixedly installed on the outer surface of the first adjusting sleeve. A limit groove is formed inside the main connecting rod.

[0009] The limiting groove provides a structural basis for the movement of the main connecting rod, ensuring the stability of the main connecting rod during rotation, thereby improving the compactness of the entire tool structure and the coordination of the movement of each component.

[0010] In a further improvement, a limiting rod is slidably installed inside the limiting groove, a push rod is fixedly installed on the outer surface of the second adjusting sleeve, and an auxiliary connecting rod is sleeved on the outer surface of the push rod.

[0011] The second adjusting sleeve, connected to the auxiliary connecting rod via the push rod, provides a transmission structure basis for the subsequent rotation of the second adjusting sleeve, which helps to realize the movement of the second detection screw, thereby enhancing the linkage of the entire internal structure of the tool.

[0012] In a further improvement, the auxiliary connecting rod is fixedly installed on the outer surface of the main connecting rod on the side away from the push rod, and the second adjusting sleeve is internally threaded with a second detection screw.

[0013] The threaded connection between the second adjusting sleeve and the second detection screw provides a structural basis for the movement of the second detection screw when the second adjusting sleeve rotates, ensuring that the second detection screw can move in a predetermined manner, thereby improving the accuracy of the tool's clamping operation on the spokes.

[0014] In a further improvement, the second detection screw is slidably installed inside the second handle, and a third detection screw is slidably installed inside the second handle, with a third adjusting sleeve threaded onto the outer surface of the third detection screw.

[0015] This allows the second and third detection screws to move relative to each other inside the second handle, and the threaded connection between the third detection screw and the third adjusting sleeve provides structural protection for the movement of the third detection screw during subsequent transmission. This helps to improve the adaptability of the entire tool to spokes in different positions during spoke detection, ensuring that the spokes can be accurately clamped and detected.

[0016] In a further improvement, a transmission belt is fitted onto the outer surface of the third adjusting sleeve, and the side of the transmission belt away from the third adjusting sleeve is fitted onto the outer surface of the second adjusting sleeve.

[0017] When the second adjusting sleeve rotates, it can drive the third adjusting sleeve to rotate synchronously through the transmission belt, thereby ensuring the coordination of the movement of the second and third detection screws and improving the synchronization and stability of the entire tool when clamping spokes.

[0018] In a further improvement, the threads on the outer surface of the first detection screw are set to right-hand threads, while the threads on the outer surfaces of the second and third detection screws are set to left-hand threads.

[0019] The first detection screw with a right-hand thread moves toward the first adjusting sleeve when the main connecting rod rotates counterclockwise, while the second and third detection screws with a left-hand thread move toward the first adjusting sleeve when the corresponding adjusting sleeves rotate clockwise. This ensures that the three detection screws can simultaneously approach the spokes, achieving stable clamping of the spokes and improving the accuracy of spoke tension detection.

[0020] The beneficial effects of this utility model are as follows:

[0021] In this invention, the gripping and releasing operations of the first and second handles cause a change in the angle between them, which in turn drives the main connecting rod to rotate counterclockwise. At the same time, the limiting rod slides within the limiting groove to ensure that the main connecting rod rotates along a predetermined trajectory. This causes the first detection screw to move towards the first adjusting sleeve, thus preparing one side for subsequent spoke clamping. The movement of the first detection screw adjusts the structural state of one side of the tool, laying the foundation for stable clamping of the spokes and improving the accuracy of the initial structural adjustment when the tool performs tension detection on the spokes.

[0022] In this invention, the counterclockwise rotation of the main connecting rod drives the movement of the auxiliary connecting rod. The auxiliary connecting rod, through a push rod, drives the second adjusting sleeve to rotate clockwise, and then the transmission belt drives the third adjusting sleeve to rotate clockwise. Utilizing the left-hand thread characteristics of the outer surfaces of the second and third detection screws, the second and third detection screws tend to move towards the first adjusting sleeve, thereby achieving effective clamping of the spokes from multiple sides. The movement of the second and third detection screws together with the first detection screw ensures that the spokes are stably clamped in the middle, which is beneficial for the tension tester to accurately detect the spoke tension and improves the reliability and accuracy of spoke tension detection. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the rear end of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the first handle structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the second handle structure of this utility model. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] A special tool for testing bicycle spoke tension includes a measuring component 1. The measuring component 1 includes a first handle 101, a tension gauge 102 fixedly mounted on the outer surface of the first handle 101, a second handle 103 rotatably mounted on the outer surface of the first handle 101, and a limit rod 104 fixedly mounted on the outer surface of the second handle 103. The tool also includes:

[0029] The first fixing component 2 includes a screw mounting base 201 fixedly installed on the outer surface of the first handle 101. The screw mounting base 201 is internally threaded with a first detection screw 202, and a main connecting rod 204 is provided at the rear end of the first detection screw 202.

[0030] The second fixing component 3 includes an auxiliary connecting rod 301 fixedly installed on the outer surface of the main connecting rod 204. A second adjusting sleeve 302 is provided at the bottom of the auxiliary connecting rod 301. A second detection screw 303 is provided inside the second adjusting sleeve 302. A third detection screw 306 is provided at the bottom of the second detection screw 303 via a transmission belt 304.

[0031] The outer surface of the first detection screw 202 is threadedly connected to the first adjusting sleeve 203. The outer surface of the first adjusting sleeve 203 is fixedly installed with the main connecting rod 204. The main connecting rod 204 has a limit groove 205 inside.

[0032] A limit rod 104 is slidably installed inside the limit groove 205, and a push rod is fixedly installed on the outer surface of the second adjusting sleeve 302. An auxiliary connecting rod 301 is sleeved on the outer surface of the push rod.

[0033] After the staff releases the first handle 101 and the second handle 103, the first handle 101 and the second handle 103 are no longer parallel and there is a certain angle between them. This change in angle causes the main connecting rod 204 to rotate counterclockwise. Since the first adjusting sleeve 203 is fixedly installed on the other side of the main connecting rod 204, and the thread on the outer surface of the first detection screw 202 is a right-hand thread, according to the characteristics of the right-hand thread, when the main connecting rod 204 rotates counterclockwise, the first detection screw 202 moves toward the first adjusting sleeve 203.

[0034] The auxiliary connecting rod 301 is fixedly installed on the outer surface of the main connecting rod 204 on the side away from the push rod, and the second adjusting sleeve 302 is internally threaded with a second detection screw 303.

[0035] The second detection screw 303 is slidably installed inside the second handle 103, and the third detection screw 306 is slidably installed inside the second handle 103. The outer surface of the third detection screw 306 is threadedly connected to the third adjusting sleeve 305.

[0036] A transmission belt 304 is sleeved on the outer surface of the third adjusting sleeve 305, and the side of the transmission belt 304 away from the third adjusting sleeve 305 is sleeved on the outer surface of the second adjusting sleeve 302.

[0037] The threads on the outer surface of the first detection screw 202 are set to right-hand threads, while the threads on the outer surfaces of the second detection screw 303 and the third detection screw 306 are set to left-hand threads.

[0038] When the second adjusting sleeve 302 rotates clockwise, the second detection screw 303 moves toward the first adjusting sleeve 203. As the second adjusting sleeve 302 rotates clockwise, and under the action of the transmission belt 304, the third adjusting sleeve 305 also rotates clockwise. The thread on the outer surface of the third detection screw 306 is a left-hand thread, so when the third adjusting sleeve 305 rotates clockwise, the third detection screw 306 also moves toward the first adjusting sleeve 203.

[0039] The working principle is as follows: The operator holds the first handle 101 and the second handle 103, bringing the tool into a constricted state. This facilitates placing the tool in a suitable position for inspecting bicycle spokes. The operator moves the spoke to be inspected to the left of the first inspection screw 202 and the third inspection screw 306, and to the right of the second inspection screw 303. After releasing the first handle 101 and the second handle 103, they are no longer parallel, forming an angle. This change in angle causes the main connecting rod 204 to rotate counterclockwise. The main connecting rod 204 is fixedly mounted with a first adjusting sleeve 203 on the other side, and the thread on the outer surface of the first detection screw 202 is a right-hand thread. According to the characteristics of the right-hand thread, when the main connecting rod 204 rotates counterclockwise, the first detection screw 202 moves toward the first adjusting sleeve 203. During the counterclockwise rotation of the main connecting rod 204, the limiting rod 104 slides in the limiting groove 205 to ensure that the rotation of the main connecting rod 204 is on a predetermined trajectory, preventing it from deviating or moving irregularly, thereby ensuring the accuracy and stability of the movement of the entire internal structure of the tool.

[0040] As the main connecting rod 204 rotates counterclockwise, the auxiliary connecting rod 301 moves along with it. The auxiliary connecting rod 301, along with the push rod on the outer surface of the second adjusting sleeve 302, rotates the second adjusting sleeve 302. At this time, the second adjusting sleeve 302 is rotating clockwise. Because the thread on the outer surface of the second detection screw 303 is a left-hand thread, according to the characteristics of the left-hand thread, when the second adjusting sleeve 302 rotates clockwise, the second detection screw 303 moves toward the first adjusting sleeve 203. Since the second adjusting sleeve 302 rotates clockwise, and under the action of the transmission belt 304, the third adjusting sleeve 305 also rotates clockwise. The thread on the outer surface of the third detection screw 306 is a left-hand thread, so when the third adjusting sleeve 305 rotates clockwise, the third detection screw 306 also moves toward the first adjusting sleeve 203.

[0041] By moving the first detection screw 202, the second detection screw 303, and the third detection screw 306 toward the first adjusting sleeve 203, their outer surfaces can clamp the spokes. After the spokes are clamped, the tension of the spokes will generate a reaction force on the tool. The tension gauge 102 can detect this reaction force, thereby realizing the detection of the spoke tension. This is because the tension gauge 102 is installed on the outer surface of the first handle 101 and can sense the stress change of the entire tool under the action of spoke tension, and thus obtain the tension value of the spokes.

Claims

1. A special tool for testing bicycle spoke tension, comprising a measuring component, the measuring component including a first handle, a tension test gauge fixedly mounted on the outer surface of the first handle, a second handle rotatably mounted on the outer surface of the first handle, and a limit rod fixedly mounted on the outer surface of the second handle, characterized in that... Also includes: A first fixing component includes a screw mounting base fixedly mounted on the outer surface of a first handle, wherein a first detection screw is internally threaded onto the screw mounting base, and a main connecting rod is provided at the rear end of the first detection screw. The second fixing component includes an auxiliary connecting rod fixedly installed on the outer surface of the main connecting rod. The bottom of the auxiliary connecting rod is provided with a second adjusting sleeve. The interior of the second adjusting sleeve is provided with a second detection screw. The bottom of the second detection screw is provided with a third detection screw via a transmission belt.

2. The special tool for testing bicycle spoke tension as described in claim 1, characterized in that: The outer surface of the first detection screw is threaded with a first adjusting sleeve, and the outer surface of the first adjusting sleeve is fixedly mounted with a main connecting rod. The main connecting rod has a limit groove inside.

3. The special tool for testing bicycle spoke tension as described in claim 2, characterized in that: A limiting rod is slidably installed inside the limiting groove, and a push rod is fixedly installed on the outer surface of the second adjusting sleeve. An auxiliary connecting rod is sleeved on the outer surface of the push rod.

4. A special tool for testing bicycle spoke tension as described in claim 3, characterized in that: The auxiliary connecting rod is fixedly installed on the outer surface of the main connecting rod on the side away from the push rod, and the second adjusting sleeve is internally threaded with a second detection screw.

5. A special tool for testing bicycle spoke tension as described in claim 4, characterized in that: The second detection screw is slidably installed inside the second handle, and a third detection screw is slidably installed inside the second handle. The outer surface of the third detection screw is threadedly connected to a third adjusting sleeve.

6. A special tool for testing bicycle spoke tension as described in claim 5, characterized in that: A transmission belt is fitted onto the outer surface of the third adjusting sleeve, and the side of the transmission belt away from the third adjusting sleeve is fitted onto the outer surface of the second adjusting sleeve.

7. A special tool for testing bicycle spoke tension as described in claim 1, characterized in that: The threads on the outer surface of the first detection screw are right-hand threads, while the threads on the outer surfaces of the second and third detection screws are left-hand threads.

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