Anti-pinch bicycle chain mechanism

Abstract

The utility model discloses an anti-rolling and anti-clamping bicycle chain mechanism, and relates to the field of bicycle chain covers. The electric bicycle comprises a bicycle frame, a chain wheel is arranged on one side of the bicycle frame in a rotating mode, a chain is arranged on the chain wheel, a protection assembly is arranged on the outer side of the chain wheel, and the protection assembly comprises an upper protection shell. The fixed connection between the lower protective shell and the upper protective shell can be easily released, and the operation enables the lower protective shell to rotate around the rotating shaft relative to the upper protective shell, so that the inner side chain wheel and the chain which are originally shielded can be conveniently exposed to the outside; and the exposed crankset and the chain are convenient for maintenance personnel to intuitively check the wear condition and timely process the wear condition, so that the normal operation of the bicycle is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bicycle chain cover, concretely to a bicycle chain mechanism of anti -winding clamp. BACKGROUND

[0002] The bicycle chain cover is an important accessory for protecting the chain from external impurities, which can prolong the service life of the chain, reduce wear and tear, maintain chain lubrication, improve riding efficiency and stability, and has various types and materials, such as full cover, half cover and ring cover, and plastic, metal and carbon fiber.

[0003] The current bicycle chain in the process of use, with its chain disc bite position, the user's trousers often slightly over this place, easy to occur trousers clamp on the chain, or trousers caused certain pollution, the traditional solution mostly in the chain disc and chain bite outside the installation tooth disc cover or chain cover, so as to reduce the probability of trousers clamp on the chain above, but, when the chain cover is installed, a use problem is produced, concretely speaking: the chain cover blocks the part of the outside area of the tooth disc, resulting in subsequent chain position adjustment or maintenance of the place, the operation space is relatively narrow, which reduces the maintenance convenience of the chain. SUMMARY

[0004] Therefore, the utility model discloses the purpose is to provide a kind of anti-winding clamp bicycle chain mechanism, to solve the technical problem that chain cover or tooth disc cover although can effectively reduce trousers be clamped or polluted, but also brought the inconvenience of maintenance.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of anti-winding clamp bicycle chain mechanism, including frame, the frame one side rotation is provided with tooth disc, and tooth disc is provided with chain, the outside of tooth disc is provided with protection assembly, the protection assembly includes the upper protection shell in the upper side of tooth disc, the upper protection shell one side is rotatably connected with lower protection shell by pivot, the lower protection shell top one side is fixedly provided with movable piece, the upper protection shell top one side is fixedly provided with fixed piece, the fixed piece is fastened and connected with movable piece by fastening bolt, for limiting the rotation angle of lower protection shell.

[0006] By adopting the above technical scheme, the outside protection assembly effectively prevents trousers or other articles from being wound into the chain and tooth disc during riding, greatly improving the safety of riding.

[0007] Further, the movable piece is provided with a movable slot for providing the movable slot of fastening bolt when the lower protection shell rotates.

[0008] By adopting the above technical solution, the movable groove provides the necessary space for the rotation of the lower protective shell, so that the protective component can be easily opened and closed while maintaining the protective effect, greatly improving the convenience of use.

[0009] Furthermore, a clamp is bolted to the frame, a connecting piece is bolted to one side of the clamp, and the bolt mounting groove is a straight groove for fine-tuning the mounting position of the connecting piece.

[0010] By adopting the above technical solution, the bolt installation groove on one side of the clamp is designed as a straight groove, so that the installation position of the connecting piece can be fine-tuned, greatly improving the flexibility and accuracy of the installation.

[0011] Furthermore, the lower part of the connecting piece is bolted to the upper protective shell, and the bolt mounting groove is a straight groove, which is used to fine-tune the installation position of the upper protective shell and the lower protective shell.

[0012] By adopting the above technical solution, the installation positions of the upper protective shell and the lower protective shell can also be fine-tuned, further improving the installation accuracy and stability of the protective component and ensuring the maximization of the protective effect.

[0013] Furthermore, a side plate is provided on one side of the lower protective shell to limit the position of the chain.

[0014] By adopting the above technical solution, the side plate provided on one side of the lower protective shell effectively limits the position of the chain, preventing the chain from deviating or jumping out during riding, thereby ensuring the stability and safety of riding.

[0015] Furthermore, a cavity is formed between the side plate and the lower protective shell, and a rubber anti-collision pad is attached to the inner side of the cavity.

[0016] By adopting the above technical solution, the rubber anti-collision pad effectively reduces the impact and wear of the chain on the protective components during movement, thereby extending the service life of the product.

[0017] Furthermore, the protective components are all made of stainless steel, and the outer sides are evenly coated with anti-rust paint.

[0018] By adopting the above technical solutions, the stainless steel material has excellent corrosion resistance and strength, and can withstand erosion and wear in various harsh environments during riding.

[0019] In summary, the present invention has the following beneficial effects:

[0020] 1. The utility model discloses a protection assembly, the fastening bolt on the fixed piece of activity piece is twisted, can easily remove the fixed connection between lower protection shell and upper protection shell, this operation makes lower protection shell can rotate about the pivot relative to upper protection shell, can conveniently expose the originally blocked inside tooth disc and chain in the outside, the exposed tooth disc and chain also facilitate the intuitive inspection of maintenance personnel to its wear and tear, in time handle, ensure the normal operation of bicycle,

[0021] 2. The utility model discloses a rubber anticollision pad is set up, because chain can produce greater vibration and impact force when running, and the softness and elasticity of rubber anticollision pad can absorb these impacts, reduce the wear and tear to protection assembly, thereby prolong the service life of protection assembly, simultaneously, rubber anticollision pad still plays the role of protection chain and tooth disc and is not damaged, it can prevent chain from hard contact with protection assembly when high -speed running, reduce the damage that produces because of friction and collision, in addition, rubber anticollision pad still has good noise reduction effect. DRAWINGS

[0022] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0023] Figure 2 It is the structure schematic diagram of protection assembly of the utility model;

[0024] Figure 3 It is the back structure schematic diagram of protection assembly of the utility model;

[0025] Figure 4 It is the utility model Figure 2 The structure schematic diagram of enlarged A place in.

[0026] In the drawing: 1, frame; 2, tooth disc; 3, chain; 4, protection assembly; 401, hoop; 402, connecting piece; 403, upper protection shell; 404, lower protection shell; 405, pivot; 406, activity piece; 407, fixed piece; 408, activity groove; 409, fastening bolt; 410, side plate. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely in connection with the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary, for explaining the utility model only, and can not be understood as limiting the utility model.

[0028] Embodiment one:

[0029] A kind of anti-winding bicycle chain mechanism, such as Figures 1-4As shown, including the frame 1, one side of the frame 1 is provided with the tooth disc 2, and the tooth disc 2 is provided with the chain 3, and the outer side of the tooth disc 2 is provided with the protection assembly 4, the protection assembly 4 includes the upper protection shell 403, the upper protection shell 403 is rotatably connected with the lower protection shell 404 through the rotating shaft 405 on one side, the lower protection shell 404 is fixedly provided with the movable piece 406 on one side of the top, the upper protection shell 403 is fixedly provided with the fixed piece 407 on one side of the top, the fixed piece 407 is fastened and connected with the movable piece 406 through the fastening bolt 409, for limiting the rotation angle of the lower protection shell 404, the outer side of the protection assembly 4 effectively prevents the trousers or other articles from being rolled into the chain and the tooth disc during riding, greatly improving the safety of riding, the upper protection shell 403 and the lower protection shell 404 in the protection assembly 4 are rotatably connected through the rotating shaft 405, so that the protection is more flexible, at the same time, the fastening bolt 409 fastening connection on the fixed piece 407 and the movable piece 406 limits the rotation angle of the lower protection shell 404, ensuring the stability and reliability of the protection assembly 4, even on the bumpy road, it can also maintain good protection effect.

[0030] Referring to Figure 3 , Figure 4 , the movable slot 408 is formed on the movable piece 406, which provides a movable slot for the fastening bolt 409 when the lower protection shell 404 rotates, and the movable slot 408 provides the necessary space for the rotation of the lower protection shell 404, so that the protection assembly 4 can be conveniently opened and closed while maintaining the protection effect, greatly improving the convenience of use, at the same time, the movable slot 408 adapts to the activity range of the fastening bolt 409, ensuring that the fastening bolt 409 will not be hindered during rotation, thereby ensuring the stability and durability of the protection assembly 4.

[0031] Referring to Figure 2 , Figure 3 , the clamp 401 is fastened on the frame 1 by bolts, the connecting piece 402 is bolted on one side of the clamp 401, and the bolted slot is a straight slot, which is used for fine adjustment of the installation position of the connecting piece 402, the bolted slot on one side of the clamp 401 is designed as a straight slot, so that the installation position of the connecting piece 402 can be fine adjusted, greatly improving the flexibility and accuracy of installation, at the same time, by fine adjusting the position of the connecting piece 402, it can ensure that the cooperation between the protection assembly 4 and the frame 1 is more closely, reducing the shaking or abnormal sound caused by inaccurate installation position.

[0032] Referring to Figure 2 , Figure 3 , Figure 4The lower side of the connecting piece 402 is bolted with the upper protective shell 403, and the bolted groove is a straight groove, which is used for fine adjustment of the installation position of the upper protective shell 403 and the lower protective shell 404, so that the installation position of the upper protective shell 403 and the lower protective shell 404 can also be fine adjusted, further improving the installation precision and stability of the protective assembly 4, ensuring the maximization of the protection effect, and at the same time, through fine adjustment of the positions of the upper protective shell 403 and the lower protective shell 404, the protective assembly 4 can be more fitted to the contour of the chain 3 and the sprocket 2, reducing the safety hazards caused by loose protection.

[0033] Referring to Figure 3 One side of the lower protective shell 404 is provided with a side plate 410 for limiting the position of the chain 3, and the side plate 410 provided on one side of the lower protective shell 404 effectively limits the position of the chain 3, preventing the chain 3 from deviating or jumping out during riding, thereby ensuring the stability and safety of riding, and at the same time, the side plate 410 also takes into account the motion trajectory and mechanical properties of the chain 3, ensuring the protection effect without increasing additional resistance or wear.

[0034] Embodiment two:

[0035] Referring to Figure 3 A cavity is formed between the side plate 410 and the lower protective shell 404, and the inner side of the cavity is attached with a rubber anti-collision pad, which effectively reduces the impact and wear of the protective assembly 4 by the chain 3 during movement, prolonging the service life of the product, and at the same time, the softness and elasticity of the rubber anti-collision pad also enable the protective assembly 4 to better absorb vibration and impact when encountering bumpy roads or sudden situations, protecting the chain 3 and the sprocket 2 from being damaged, and also having a noise reduction effect.

[0036] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 The position of the protective assembly 4 is made of stainless steel, and the outer side is uniformly coated with anti-rust paint. Stainless steel has excellent corrosion resistance and strength, and can resist erosion and wear in various harsh environments during riding. At the same time, the use of stainless steel also makes the protective assembly 4 more lightweight and sturdy, improving the durability and reliability of the product. In addition, the uniform coating of anti-rust paint on the outer side of the protective assembly 4 further enhances its rust resistance, prolonging the service life of the product.

[0037] The utility model discloses an implementation principle is: first, the hoop 401 is installed on the frame 1, subsequently, the bolt installation connecting piece 402 on one side of hoop 401, the lower side of connecting piece 402 is installed through the bolt upper protective housing 403, through the bolt straight slot installation of hoop 401 and connecting piece 402, connecting piece 402 and upper protective housing 403, can carry out position fine adjustment, at this moment, the upper side of chain 3 and sprocket 2 is shielded by upper protective housing 403, lower protective housing 404, thereby prevent the trousers of outside user from being clamped in the inside of chain 3 and sprocket 2;

[0038] when needing to overhaul and maintain chain 3, first, the fastening bolt 409 on movable piece 406 and fixed piece 407 is screwed, causes lower protective housing 404 to be rotatablely connected with upper protective housing 403 through pivot 405, subsequently, lower protective housing 404 is rotated, causes the inside sprocket 2 and chain 3 to be exposed to the outside, provides enough space for the maintenance of sprocket 2 and chain 3, improves the maintenance convenience of sprocket 2 and chain 3.

[0039] The part not involved in the utility model is same as prior art or can adopt prior art to realize, and here, do not carry out too much repetition.

[0040] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and it is not the limitation of the utility model, and the specific features, structure, material or characteristics described can be combined in any one or more embodiments or examples in the suitable way, and the person skilled in the art can make the modification, replacement and change without creative contribution after reading the specification, but as long as in the patent right claim range of the utility model, it is protected by the patent law.

Claims

1. A pinch-proof bicycle chain mechanism, characterized by: The utility model provides a kind of chain hoist, including frame (1), one side of the frame (1) is rotatably provided with tooth disc (2), and chain (3) is provided on tooth disc (2), the outside of tooth disc (2) is provided with protective assembly (4), the protective assembly (4) includes upper protective shell (403) on the side above tooth disc (2), one side of the upper protective shell (403) is rotatably connected with lower protective shell (404) by pivot (405), the top side of the lower protective shell (404) is fixedly provided with movable piece (406), the top side of the upper protective shell (403) is fixedly provided with fixed piece (407), the fixed piece (407) is fastened and connected with movable piece (406) by fastening bolt (409), for limiting the rotation angle of lower protective shell (404).

2. The anti-jam bicycle chain mechanism of claim 1, wherein: The movable piece (406) is provided with movable slot (408) for providing the movable slot of fastening bolt (409) when lower protective shell (404) rotates.

3. The anti-jam bicycle chain mechanism of claim 1, wherein: The frame (1) is bolted with hoop (401), one side of the hoop (401) is bolted with connecting piece (402), and bolted slot is straight slot, for fine adjustment of the installation position of connecting piece (402).

4. The anti-jam bicycle chain mechanism of claim 3, wherein: The lower side of the connecting piece (402) is bolted with upper protective shell (403), and bolted slot is straight slot, for fine adjustment of the installation position of upper protective shell (403) and lower protective shell (404).

5. The anti-jam bicycle chain mechanism of claim 1, wherein: One side of the lower protective shell (404) is provided with side plate (410) for limiting the position of chain (3).

6. The anti-jam bicycle chain mechanism of claim 5, wherein: The cavity is formed between the side plate (410) and the lower protective shell (404), and the inner side of the cavity is attached with rubber anti-collision pad.

7. The anti-jam bicycle chain mechanism of claim 1, wherein: The position of the protective assembly (4) is stainless steel, and the outside is uniformly coated with rust-proof paint.

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