A new device for clamping a bicycle chain

Abstract

The utility model discloses a novel device of clamping bicycle chain, including the casing, the inside of casing is provided with the pipe body, the outer wall of pipe body is provided with the locking nut, and the pipe body is fixed with the casing through the locking nut, the outer wall of pipe body is provided with the second sliding block, and the both sides of second sliding block are provided with first sliding block and third sliding block respectively, and first sliding block, second sliding block and third sliding block all are provided with through -hole, and the inside of through -hole is provided with adjusting screw, the utility model discloses the cooperation of three sliding blocks and adjusting screw can directly push the relative sliding of sliding block, and then drive the pipe body to adjust the front and back position in casing, realize the quick adjustment of chain tightness, adopt the locking nut to fix the relative position of pipe body and casing, especially after adjusting screw completes chain clamping, can effectively prevent the pipe body from deviating through locking locking nut, and the overall structure of device is compact, can directly replace traditional round five -way through welding or adaptive installation, and the five -way position compatibility of bicycle frame is good.

Description

Technical Field

[0001] This utility model relates to the field of bicycle parts technology, specifically to a novel device for clamping bicycle chains. Background Technology

[0002] During bicycle use, the tension of the chain directly affects the riding experience and transmission efficiency. In current technology, the tensioning and adjustment of bicycle chains mostly rely on the traditional round bottom bracket structure, which achieves chain tensioning through fixed components. The adjustment method is relatively simple, and the process requires disassembling or moving multiple components, making it cumbersome.

[0003] The core drawback of traditional chain clamping devices lies in their fixed position: the circular bottom bracket cannot be flexibly adjusted for forward or backward movement using a simple structure. This results in low precision in chain tension adjustment, and after adjustment, the chain is prone to shifting due to loose components, affecting the stability of the chain drive. Furthermore, traditional structures often employ complex linkage components, which are not only inconvenient to install and maintain but also bulky and poorly compatible with bicycle frames. Therefore, there is an urgent need to design a novel chain clamping device to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a novel device for clamping bicycle chains, thereby addressing the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A novel device for clamping a bicycle chain includes a housing, an inner tube being provided inside the housing, a locking nut being provided on the outer wall of the tube, and the tube being fixed to the housing by the locking nut;

[0007] The outer wall of the tube is provided with a second slider, and a first slider and a third slider are respectively provided on both sides of the second slider. The first slider, the second slider and the third slider are all provided with through holes, and an adjusting screw is provided inside the through holes.

[0008] Preferably, the inner diameter of the through hole of the first slider, the second slider, and the third slider is adapted to the outer diameter of the adjusting screw.

[0009] Preferably, there are two locking nuts, each located on one side of the bottom of the housing.

[0010] Preferably, the first and third sliders have the same structure and are symmetrically arranged on both sides of the second slider.

[0011] Preferably, the first slider, the second slider, and the third slider slide relative to each other by adjusting the screw, thereby driving the tube to adjust its front and rear position within the housing to clamp the chain.

[0012] Preferably, the locking nut is locked after the adjusting screw completes the chain clamping adjustment, so as to fix the relative position of the tube body and the housing and ensure the stability of the bottom bracket.

[0013] In the above technical solution, the novel device for clamping bicycle chains provided by this utility model has the following advantages:

[0014] (1) By using the three sliders and adjusting screws, the sliders can be pushed to slide relative to each other, thereby driving the tube to adjust its position in the housing, thus achieving rapid adjustment of the chain tension. There is no need to disassemble multiple parts, and the operation is simple and intuitive.

[0015] (2) The relative position of the tube and the housing is fixed by using a locking nut. Especially after the adjusting screw has finished clamping the chain, the locking nut can effectively prevent the tube from shifting, ensure the stability of the bottom bracket position, and prevent the chain from loosening or slipping during transmission.

[0016] (3) The device has a compact overall structure and can directly replace the traditional round bottom bracket by welding or fitting. It has good compatibility with the bottom bracket position of the bicycle frame, and the symmetrical slider design ensures the balance of the adjustment process and improves the durability of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural view of an embodiment of a novel device for clamping bicycle chains according to the present invention.

[0019] Figure 2 This is a perspective view of the tube structure provided for an embodiment of a novel device for clamping bicycle chains according to the present invention.

[0020] Figure 3 This is a perspective view of a locking nut structure provided for an embodiment of a novel device for clamping bicycle chains according to the present invention.

[0021] Figure 4 This is a perspective view of an adjusting screw structure provided for an embodiment of a novel device for clamping bicycle chains according to the present invention.

[0022] 1. Housing; 2. Tube body; 3. Locking nut; 4. First slider; 5. Second slider; 6. Third slider; 7. Adjusting screw. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown in the figure, a novel device for clamping a bicycle chain provided by this utility model includes a housing 1, a tube 2 disposed inside the housing 1, a locking nut 3 disposed on the outer wall of the tube 2, and the tube 2 being fixed to the housing 1 by the locking nut 3; a second slider 5 disposed on the outer wall of the tube 2, a first slider 4 and a third slider 6 disposed on both sides of the second slider 5 respectively, and the first slider 4, the second slider 5 and the third slider 6 are all provided with through holes, and an adjusting screw 7 is disposed inside the through holes.

[0025] In this embodiment, a housing 1 is included. The housing 1 serves as the basic load-bearing structure of the device. It is in the shape of a hollow cavity and is welded and fixed to the bottom bracket position of the bicycle frame to replace the traditional round bottom bracket. Its inner wall is fitted with the outer wall of the tube 2 with a clearance to reserve space for the tube 2 to move back and forth.

[0026] The shell 1 has a tube 2 inside, which passes through the shell 1. The outer wall of the tube 2 is machined with external threads to match the locking nut 3. The middle outer wall of the tube 2 is fixedly connected to the second slider 5, and the axis of the tube 2 is parallel to the bottom bracket axis of the bicycle frame. It is the core transmission component that drives the chain clamping.

[0027] The outer wall of the tube body 2 is provided with a locking nut 3. The tube body 2 is fixed to the shell 1 by the locking nut 3. The inner diameter of the locking nut 3 is adapted to the external thread of the tube body 2. When tightened, the relative position of the tube body 2 and the shell 1 can be fixed by squeezing the outer wall of the shell 1.

[0028] The outer wall of the tube body 2 is provided with a second slider 5. The first slider 4 and the third slider 6 are respectively provided on both sides of the second slider 5. All three are block structures. The second slider 5 is fixed to the outer wall of the tube body 2. The first slider 4 and the third slider 6 are located on both sides of the second slider 5 and are all sleeved on the outer wall of the tube body 2 and slide in cooperation with the tube body 2.

[0029] The first slider 4, the second slider 5, and the third slider 6 are all provided with through holes. An adjusting screw 7 is provided inside the through hole. The adjusting screw 7 is a long rod-shaped threaded part that passes through the through holes of the first slider 4, the second slider 5, and the third slider 6 in sequence and engages with the internal threads of the three. Its two ends extend to the outside of the first slider 4 and the third slider 6, respectively, so as to facilitate the tool to tighten it.

[0030] Specifically, the inner diameter of the through holes of the first slider 4, the second slider 5, and the third slider 6 is adapted to the outer diameter of the adjusting screw 7. The center of each of the three sliders is provided with a coaxial through hole. The inner wall of the through hole is machined with internal threads, and the inner diameter of the through hole is fully adapted to the outer diameter of the adjusting screw 7, so as to ensure that the adjusting screw 7 can pass through the three sliders and realize threaded transmission.

[0031] Specifically, there are two locking nuts 3, which are respectively set on one side of the bottom of the housing 1.

[0032] Furthermore, the first slider 4 and the third slider 6 have the same structure and are symmetrically arranged on both sides of the second slider 5. The first slider 4 and the third slider 6 have the same structure and are symmetrically distributed. The side of the first slider 4 and the third slider 6 that is close to the second slider 5 is machined with an inclined contact surface, which is adapted to the inclined surfaces on both sides of the second slider 5 to form a wedge-shaped fit structure.

[0033] It should be noted that the first slider 4, the second slider 5 and the third slider 6 slide relative to each other by the push of the adjusting screw 7, thereby driving the tube 2 to adjust its front and rear position in the housing 1 to clamp the chain.

[0034] It should be noted that the locking nut 3 is locked after the adjusting screw 7 completes the chain clamping adjustment, so as to fix the relative position of the tube body 2 and the housing 1 and ensure the stability of the bottom bracket.

[0035] Working steps: 1. Weld the housing 1 of the device to the bottom bracket position of the bicycle frame, replacing the traditional round bottom bracket. At this time, the tube 2 is initially connected to the housing 1 through the locking nut 3 on the outer wall, so as to maintain the stable installation of the device on the frame.

[0036] 2. Ensure that the first slider 4, the second slider 5 and the third slider 6 are in their initial positions, that the through holes of the three are aligned, that the adjusting screw 7 is inserted into the through hole and that no external force is applied to push the slider, and that the locking nut 3 is not fully tightened, leaving room for subsequent adjustment.

[0037] 3. Rotate the adjusting screw 7. Under the action of thread transmission, the adjusting screw 7 pushes the first slider 4, the second slider 5 and the third slider 6 to slide relative to each other along the outer wall of the tube body 2.

[0038] Fourth, due to the coordinated action of the three sliders, the tube 2 is moved to adjust its position back and forth within the housing 1, thereby clamping the bicycle chain until the chain reaches the appropriate tension.

[0039] 5. After the chain tension is adjusted, tighten the locking nut 3 on the outer wall of the tube 2 to fix the relative position of the tube 2 and the housing 1, ensuring the stability of the bottom bracket position and preventing the slider or tube 2 from shifting due to vibration or other factors during bicycle operation, thus ensuring the chain clamping state remains reliable.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel device for clamping a bicycle chain, comprising a housing (1), characterized in that, The shell (1) is provided with a tube (2) inside, and a locking nut (3) is provided on the outer wall of the tube (2). The tube (2) is fixed to the shell (1) by the locking nut (3). The outer wall of the tube (2) is provided with a second slider (5), and a first slider (4) and a third slider (6) are provided on both sides of the second slider (5). The first slider (4), the second slider (5) and the third slider (6) are all provided with through holes, and an adjusting screw (7) is provided inside the through hole.

2. The novel device for clamping a bicycle chain according to claim 1, characterized in that, The inner diameter of the through hole of the first slider (4), the second slider (5) and the third slider (6) is adapted to the outer diameter of the adjusting screw (7).

3. The novel device for clamping a bicycle chain according to claim 1, characterized in that, There are two locking nuts (3), which are respectively set on one side of the bottom of the housing (1).

4. The novel device for clamping a bicycle chain according to claim 1, characterized in that, The first slider (4) and the third slider (6) have the same structure and are symmetrically arranged on both sides of the second slider (5).

5. A novel device for clamping a bicycle chain according to claim 1, characterized in that, The first slider (4), the second slider (5) and the third slider (6) slide relative to each other by the push of the adjusting screw (7), thereby driving the tube (2) to adjust its front and rear position in the housing (1) to clamp the chain.

6. The novel device for clamping a bicycle chain according to claim 1, characterized in that, The locking nut (3) is locked after the adjusting screw (7) completes the chain clamping adjustment, so as to fix the relative position of the tube (2) and the housing (1) and ensure the stability of the bottom bracket.

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