A bicycle chain guide to prevent chain slippage

Abstract

This utility model discloses a bicycle chain guide to prevent chain slippage, comprising a coil body, a connecting rod, a connecting plate, and a chain guide body. One end of the coil body has an opening, and tensioning members are located at both ends of the opening. A second tensioning member is located on one side of the coil body, and a mounting opening is located at the bottom of the second tensioning member. The connecting rod is fixedly nested within the mounting opening. The chain guide body is fixedly connected to the connecting plate by bolts. The chain guide body includes a chain guide side plate, a chain guide top plate, and a chain guide connecting plate. The chain guide side plates are located on both sides of the chain guide top plate, and the chain guide connecting plate is located on top of the chain guide top plate. This bicycle chain guide to prevent chain slippage features an advanced design, compact structure, and ease of use. It allows for easy replacement of connecting rods of different lengths according to actual needs, thus meeting the requirements of heavy-duty bicycles. It also allows the chain guide body to be moved to a lower position to accommodate models where the chainring is lower than the frame.

Description

Technical Field

[0001] This utility model belongs to the technical field of bicycle parts, specifically relating to a bicycle chain guide to prevent chain slippage. Background Technology

[0002] A chain guide is an important device in a bicycle drivetrain used to stabilize the chain position and prevent it from falling off, playing a crucial role, especially on rough terrain or during intense riding. On bumpy roads, during jumps, or at high speeds, the chain may slip off the chainring (front sprocket) or freewheel (rear sprocket) due to severe vibration or lateral displacement. The chain guide physically limits this chain movement, preventing it from falling off, reducing lateral chain sway during riding, improving drivetrain efficiency, and preventing friction between the chain and the frame or any unusual noises.

[0003] A chain guide mainly consists of a chain guide plate, a mounting bracket, and a connecting rod. The chain guide plate is the core component that directly contacts and guides the chain. The mounting bracket is the key component for load-bearing and connection, used to fix the entire chain guide to the frame. The connecting rod connects the mounting bracket and the chain guide plate; its length and angle determine the position of the chain guide plate relative to the chainring. Although some chain guide designs allow for fine-tuning of the connecting rod's length or angle for more precise chain guide plate positioning, the overall length of the connecting rod is still relatively short, which cannot meet the needs of fat bikes. Furthermore, most chain guides on the market are fixed to the bicycle's round seat tube. Due to the minimum height of the round seat tube, chain guides cannot meet the needs of bikes where the chainring is lower than the frame. Therefore, there is an urgent need to design a bicycle chain guide to prevent chain slippage and solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a bicycle chain guide to prevent chain slippage, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bicycle chain guide to prevent chain slippage, comprising:

[0006] The main body of the cable tie has an opening at one end, and tensioning members one corresponding to the left and right sides of the opening at both ends. Tensioning members two corresponding to the top and bottom sides of the main body of the cable tie are provided on one side, and an installation port is provided at the bottom of the tensioning members two.

[0007] A connecting rod is fixedly nested inside an installation port. One end of the connecting rod is fixed with a connecting block, and one end of the connecting rod is provided with a connecting groove that passes through the connecting block.

[0008] A connecting piece, wherein a locking hole is provided on one side of the top end of the connecting piece and a connecting groove is provided on the other side, the connecting block is nested in the connecting groove, and the connecting piece is also provided with a strip-shaped hole;

[0009] The guide chain body is fixedly connected to the connecting piece by bolts. The guide chain body includes an integrally formed guide chain side plate, a guide chain top plate, and a guide chain connecting plate. The guide chain side plates are disposed on both sides of the guide chain top plate, and the guide chain connecting plate is disposed on the top of the guide chain top plate.

[0010] Furthermore, both the first tensioning member and the second tensioning member have through holes at their ends, and a fixing member that can adjust the distance between the first tensioning member and the second tensioning member passes through the through holes.

[0011] Furthermore, one end of the through hole is provided with a regular hexagonal step, and the other end is provided with a circular step, the central axes of the regular hexagonal step, the through hole and the circular step coincide.

[0012] Furthermore, both the connecting block and the second connecting groove are regular hexagonal structures with the same dimensions, and both the locking hole and the first connecting groove are circular structures with the same inner diameter. The central axes of the connecting block, the first connecting groove, the locking hole, and the second connecting groove coincide, and the inner wall of the first connecting groove is provided with internal threads.

[0013] Furthermore, a limiting block is fixed on one side of the guide chain side plate, and the limiting block is slidably connected to the strip hole.

[0014] Furthermore, one side of the chain guide plate is provided with a connecting hole, which is correspondingly provided with the strip hole and fixedly connected by bolts.

[0015] Furthermore, one end of the guide chain body is provided with a front stop arc groove, and the other end is provided with a rear stop arc groove, and the bottom of the guide chain top plate is provided with a groove.

[0016] The technical effects and advantages of this utility model are as follows: This bicycle chain guide is advanced in design, compact in structure, and easy to use. By setting tensioning component two and installation port, it is convenient to replace the connecting rod of different lengths according to actual needs, thus meeting the needs of fat tire bicycles. By setting connecting plate, strip hole and limiting block, it is convenient to move the chain guide body up and down according to actual needs, thus moving the chain guide body to a lower position to meet the needs of bicycle models where the chainring is lower than the frame. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main body of the coil of this utility model;

[0019] Figure 3 This is a schematic diagram of the connecting rod of this utility model;

[0020] Figure 4This is a schematic diagram of the structure of the connecting piece of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the guide chain body of this utility model.

[0022] In the diagram: 100, main body of the coil; 101, opening; 102, tensioning component one; 103, tensioning component two; 104, mounting port; 105, through hole; 200, connecting rod; 201, connecting block; 202, connecting groove one; 300, connecting piece; 301, locking hole; 302, connecting groove two; 303, strip hole; 400, main body of the guide chain; 401, side plate of the guide chain; 4011, limiting block; 402, top plate of the guide chain; 403, connecting plate of the guide chain; 4031, connecting hole; 404, front stop arc groove; 405, rear stop arc groove; 406, groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device 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 limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] This utility model provides, for example Figure 1-5 The bicycle chain guide shown includes:

[0027] The main body 100 of the cable tie has an opening 101 at one end, and tensioning members 102 corresponding to the left and right sides at both ends of the opening 101. Tensioning members 2 103 corresponding to the top and bottom sides are provided on one side of the main body 100 of the cable tie. The bottom end of tensioning member 2 103 is provided with an installation port 104. The main body 100 of the cable tie, tensioning members 1 102 and tensioning members 2 103 are integrally molded.

[0028] The connecting rod 200 is fixedly nested in the mounting port 104. One end of the connecting rod 200 is fixed with a connecting block 201, and one end of the connecting rod 200 is provided with a connecting groove 202 that passes through the connecting block 201.

[0029] The connecting piece 300 has a locking hole 301 on one side of its top end and a connecting groove 302 on the other side. The connecting block 201 is nested in the connecting groove 302. The connecting piece 300 also has a strip hole 303.

[0030] The guide chain body 400 is fixedly connected to the connecting piece 300 by bolts. The guide chain body 400 includes an integrally formed guide chain side plate 401, a guide chain top plate 402 and a guide chain connecting plate 403. The guide chain side plate 401 is disposed on both sides of the guide chain top plate 402 and the guide chain connecting plate 403 is disposed on the top of the guide chain top plate 402.

[0031] For example, see Figures 1-2 As shown, both tensioning member 102 and tensioning member 2 103 have through holes 105 at their ends, and a fixing member that can adjust the distance between tensioning member 102 or tensioning member 2 103 passes through the through hole 105.

[0032] In this technical solution, the fixing component is a bolt pair consisting of bolts and nuts. The bolts pass through the through hole 105. By tightening or loosening the nuts, the two corresponding tensioning components can be adjusted to face or move away from each other, which facilitates the installation or removal of the coil body 100 from the frame, and also facilitates the installation or removal of the connecting rod 200 from the coil body 100.

[0033] For example, see Figures 1-2 As shown, one end of the through hole 105 is provided with a regular hexagonal step, and the other end is provided with a circular step. The central axes of the regular hexagonal step, the through hole 105, and the circular step coincide.

[0034] In this technical solution, after adjusting the tensioning component one or tensioning component two by means of bolt pair, the bolt head and nut can be hidden in the regular hexagonal step and the circular step respectively, making the appearance of the chain guide more aesthetically pleasing.

[0035] For example, see Figures 3-4As shown, the connecting block 201 and the second connecting groove 302 are both regular hexagonal structures with the same dimensions. The locking hole 301 and the first connecting groove 202 are both circular structures with the same inner diameter. The central axes of the connecting block 201, the first connecting groove 202, the locking hole 301 and the second connecting groove 302 coincide. The inner wall of the first connecting groove 202 is provided with internal threads.

[0036] In this technical solution, the connecting block 201 is conveniently embedded in the second connecting groove 302, and then the bolt is passed through the locking hole 301 and tightened into the first connecting groove 202, so that the connecting piece 300 and the connecting rod 200 are conveniently fixedly connected together.

[0037] For example, see Figure 5 As shown, a limiting block 4011 is fixed on one side of the guide chain side plate 401, and the limiting block 4011 is slidably connected to the strip hole 303.

[0038] In this technical solution, the limiting block 4011 is a strip-shaped columnar structure, which can restrict the relative rotation between the guide chain body 400 and the connecting piece 300, thereby ensuring that the angle of the guide chain body 400 does not change during the up-and-down movement, which is beneficial to improving the adjustment accuracy.

[0039] For example, see Figure 1 and Figure 5 As shown, a connecting hole 4031 is provided on one side of the chain connecting plate 403. The connecting hole 4031 is correspondingly provided with the strip hole 303 and is fixedly connected by bolts.

[0040] In this technical solution, it is convenient to fix the chain guide body 400 and the connecting piece 300 together.

[0041] For example, see Figure 1 and Figure 5 As shown, one end of the guide chain body 400 is provided with a front stop arc groove 404, and the other end is provided with a rear stop arc groove 405. The bottom of the guide chain top plate 402 is provided with a groove 406.

[0042] In this technical solution, the chain guide body 400 is located above the joint between the chain and the toothed sprocket, that is, at the meshing front end of the chain and the toothed sprocket. The chain is guided into the chain guide body 400 through the front stop arc groove 404, and then guided out of the chain guide body 400 through the rear stop arc groove 405. The chain guide side plate 401 can restrict the left and right movement of the chain, and the chain guide top plate 402 can restrict the up and down swing of the chain, which can effectively prevent the chain from accidentally falling off. The bottom of the chain guide top plate 402 is provided with a groove 406, which can avoid friction between the chain and the chain guide top plate 402 during normal operation and extend the service life of the chain.

[0043] Working principle: When using this bicycle chain guide, firstly, the main body 100 of the chain loop is fitted onto the bicycle's round stem tube and secured by the tensioning member 102. Then, the connecting rod 200 is embedded in the mounting port 104 and secured by the tensioning member 203. Next, the bolt is passed through the locking hole 301 and tightened into the connecting groove 202, so that the connecting piece 300 is fixedly connected to one end of the connecting rod 200. Then, the bolt is passed through the connecting hole 4031 and the strip hole 303 and locked by the nut, so that the chain guide body 400 is fixedly connected to the connecting piece 300. This bicycle chain guide is advanced in design, compact in structure, and easy to use. By setting tensioning component 203 and mounting port 104, it is easy to replace the connecting rod 200 of different lengths according to actual needs, thus meeting the needs of fat tire bicycles. By setting connecting piece 300, strip hole 303 and limiting block 4011, it is easy to move the chain guide body 400 up and down according to actual needs, thus moving the chain guide body 400 to a lower position to meet the needs of bicycle models where the chainring is lower than the frame.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bicycle chain guide to prevent chain slippage, characterized in that, include: The main body (100) of the coil has an opening (101) at one end, and tensioning members (102) corresponding to the left and right sides at both ends of the opening (101). Tensioning members (2) corresponding to the upper and lower sides are provided on one side of the main body (100), and an installation port (104) is provided at the bottom end of the tensioning member (2). A connecting rod (200) is fixedly nested in the mounting port (104). One end of the connecting rod (200) is fixed with a connecting block (201). One end of the connecting rod (200) is provided with a connecting groove (202) that passes through the connecting block (201). A connecting piece (300) is provided with a locking hole (301) on one side of its top end and a connecting groove (302) on the other side. The connecting block (201) is nested in the connecting groove (302). The connecting piece (300) is also provided with a strip hole (303). The guide chain body (400) is fixedly connected to the connecting piece (300) by bolts. The guide chain body (400) includes an integrally formed guide chain side plate (401), a guide chain top plate (402) and a guide chain connecting plate (403). The guide chain side plate (401) is disposed on both sides of the guide chain top plate (402), and the guide chain connecting plate (403) is disposed on the top of the guide chain top plate (402).

2. The chain drop-out prevention and guide device for a bicycle according to claim 1, characterized by: Both tensioning member one (102) and tensioning member two (103) have through holes (105) at their ends. A fixing member that can adjust the distance between tensioning member one (102) or tensioning member two (103) passes through the through hole (105).

3. The bicycle chain guide device for preventing chain slippage according to claim 2, characterized in that: One end of the through hole (105) is provided with a regular hexagonal step, and the other end is provided with a circular step. The central axes of the regular hexagonal step, the through hole (105) and the circular step coincide.

4. The chain drop-out prevention and guide device for bicycle as claimed in claim 1 wherein: The connecting block (201) and the second connecting groove (302) are both regular hexagonal structures with the same size. The locking hole (301) and the first connecting groove (202) are both circular structures with the same inner diameter. The central axes of the connecting block (201), the first connecting groove (202), the locking hole (301) and the second connecting groove (302) coincide. The inner wall of the first connecting groove (202) is provided with internal threads.

5. The chain drop out prevention and guide device for bicycles according to claim 1, characterized in that: A limiting block (4011) is fixed on one side of the guide chain side plate (401), and the limiting block (4011) is slidably connected to the strip hole (303).

6. The chain drop out prevention and guide device for bicycles according to claim 1, characterized in that: The chain guide plate (403) has a connecting hole (4031) on one side. The connecting hole (4031) is provided in correspondence with the strip hole (303) and is fixedly connected by bolts.

7. The chain drop out prevention and guide of claim 1 wherein: One end of the guide chain body (400) is provided with a front stop arc groove (404), and the other end is provided with a rear stop arc groove (405). The bottom of the guide chain top plate (402) is provided with a groove (406).

Images