Chain with surface anti-abrasion function

Abstract

The chain with the surface anti-abrasion function comprises a supporting device, a covering device is connected to the side end of the supporting device in a sliding and inserted mode, and the covering device comprises a first cover plate, a first alignment plate, an L-shaped extending frame, a plug pin, a bolt, a second alignment plate and a second cover plate. The first alignment plate and the second alignment plate are symmetrically and fixedly installed at the bottoms and the tops of the side ends of the first cover plate and the second cover plate, the bolts are inserted into the first alignment plate and the second alignment plate in a threaded mode, and the L-shaped extension frames are symmetrically and fixedly installed at the top end of the first cover plate and the bottom end of the second cover plate. The bolt is fixedly installed at the top of the side end of the L-shaped extending frame, the supporting device comprises a protection disc, a chain wheel and a chain, the chain wheel is rotatably installed in the side end of the protection disc, and the chain is connected to the outer ring of the chain wheel in a meshed and sleeved mode. Through the arrangement of the supporting device and the covering device, the purpose of covering and protecting the chain is achieved.

Description

Technical Field

[0001] This utility model relates to the field of chain technology, specifically to a chain with surface abrasion resistance. Background Technology

[0002] The bicycle chain is the core component of the bicycle drivetrain, and its technological development directly affects riding efficiency, power transmission, and overall performance.

[0003] For example, a bicycle chain structure, as disclosed in Chinese Patent Publication No. CN206309868U, includes a plurality of link units connected in series. This chain engages with a rear sprocket and can change position between different gears in the rear sprocket. Furthermore, each link unit includes two outer link plates, two inner link plates, and a link pin. The outer edges of the two outer link plates have a large-angle bevel.

[0004] The bicycle chain in the aforementioned patent can only be quickly disassembled during use. However, existing bicycle chains, due to the lack of protective components on their outer surface, are easily damaged by external objects impacting and rubbing against them. Therefore, a device is needed to address this problem. Utility Model Content

[0005] The purpose of this invention is to provide a chain with surface abrasion resistance to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a chain with surface anti-wear function, including a support device, a cover device slidably inserted into the side end of the support device, the cover device including a first cover plate, a first alignment plate, an L-shaped extension frame, a pin, a bolt, a second alignment plate and a second cover plate, the first alignment plate and the second alignment plate being symmetrically fixedly installed at the bottom and top of the side ends of the first cover plate and the second cover plate, the bolt being threadedly inserted into the inside of the first alignment plate and the second alignment plate, the L-shaped extension frame being symmetrically fixedly installed at the top of the first cover plate and the bottom of the second cover plate, and the pin being fixedly installed at the top of the side end of the L-shaped extension frame.

[0007] Preferably, the support device includes a protective disc, a sprocket, and a chain. The sprocket is rotatably mounted inside the side end of the protective disc, and the chain is engaged with the outer ring of the sprocket.

[0008] Preferably, the pins are symmetrically slidably inserted into the interior of the protective disc.

[0009] Preferably, the protective disc has symmetrically provided insertion holes at its top and bottom.

[0010] Preferably, the second cover plate and the first cover plate have an arc groove at opposite ends.

[0011] Preferably, threaded holes are provided inside the second alignment plate and the first alignment plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In use, this device can be installed on the side of the protective disc via the first and second cover plates, allowing the protective disc, the first and second cover plates to enclose and protect the sprocket and chain, preventing external objects from directly impacting them. Simultaneously, the first and second cover plates can be disassembled in sections, facilitating user maintenance of the sprocket and chain. Furthermore, bolts can be used to connect the first and second alignment plates, securing them together and ensuring a stable installation on the side of the protective disc, thus completing the protection of the sprocket and chain. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the support device structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the covering device structure of this utility model.

[0017] In the figure: 1-support device, 2-covering device, 3-protective disc, 4-sprocket, 5-chain, 6-first cover plate, 7-first alignment plate, 8-L-shaped extension frame, 9-pin, 10-bolt, 11-second alignment plate, 12-second cover plate. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3An embodiment of this utility model provides a chain with surface anti-wear function, including a support device 1. A cover device 2 is slidably inserted into the side end of the support device 1. The cover device 2 includes a first cover plate 6, a first alignment plate 7, an L-shaped extension frame 8, a pin 9, a bolt 10, a second alignment plate 11, and a second cover plate 12. The first alignment plate 7 and the second alignment plate 11 are symmetrically fixedly installed at the bottom and top of the side ends of the first cover plate 6 and the second cover plate 12. The bolt 10 is threaded into the inside of the first alignment plate 7 and the second alignment plate 11. The L-shaped extension frame 8 is symmetrically fixedly installed at the top of the first cover plate 6 and the bottom of the second cover plate 12. The pin 9 is fixedly installed at the top of the side end of the L-shaped extension frame 8.

[0020] The support device 1 includes a protective disc 3, a sprocket 4, and a chain 5. The sprocket 4 is rotatably mounted inside the side end of the protective disc 3, and the chain 5 is meshed and sleeved on the outer ring of the sprocket 4. The protective disc 3 is located outside the sprocket 4 and the chain 5, so that external objects can be prevented from directly contacting the sprocket 4 and the chain 5.

[0021] The pins 9 are symmetrically slidably inserted into the inside of the protective plate 3, improving the accuracy of the first cover plate 6 and the second cover plate 12 being installed on the protective plate 3.

[0022] The top and bottom of the protective plate 3 are symmetrically provided with insertion holes, which facilitates the insertion of the pin 9 into the interior of the protective plate 3.

[0023] The second cover plate 12 and the first cover plate 6 have an arc groove at their opposite ends, which facilitates the installation of the first cover plate 6 and the second cover plate 12 on the side of the protective plate 3.

[0024] The second alignment plate 11 and the first alignment plate 7 have threaded holes inside, which makes it easy for the first alignment plate 7 to restrict and fix the first alignment plate 7 and the second alignment plate 11.

[0025] Working Principle: In use, first install the protective disc 3 onto the bicycle frame. Simultaneously, install the protective disc 3 and sprocket 4 onto the frame. Then, symmetrical insertion holes are provided at the top and bottom of the protective disc 3, allowing the pins 9 to be inserted into these holes. This supports the first cover plate 6 and the second cover plate 12, which are positioned at the top and bottom of the protective disc 3. When the pins 9 on the first cover plate 6 and the second cover plate 12 are fully inserted into the insertion holes inside the protective disc 3, the first alignment plates 7 on the first cover plate 6 and the second cover plate 12 can fit together. Then, bolts 10 can be screwed into the first alignment plates 7 and the second alignment plates 11 to fix the first cover plates 6 and the second cover plate 12 in place, preventing them from falling off. Furthermore, arc grooves are provided at opposite ends of the first cover plates 6 and the second cover plate 12, facilitating their installation onto the side of the protective disc 3. Simultaneously, the first cover plates 6 and the second cover plate 12, positioned on the protective disc 3, provide support for the protective disc 3. On the side end of disc 3, external objects are prevented from directly contacting the chain 5 and sprocket 4, reducing the probability of the chain 5 and sprocket 4 being impacted and rubbed by external objects. During use, the first cover plate 6 and the second cover plate 12 are attached to the side surface of the protective disc 3, improving the integrity of the first cover plate 6 and the second cover plate 12 covering the protective disc 3. Subsequently, when the chain 5 and sprocket 4 need maintenance, the bolt 10 can be unscrewed from the inside of the first alignment plate 7 and the second alignment plate 11, allowing the chain 5 and sprocket 4 to be repaired. Once the alignment plate 7 and the second alignment plate 11 are unlocked, the first cover plate 6 and the second cover plate 12 can be pulled away from the sprocket 4 until the pin 9 is removed from the inside of the protective plate 3. This allows the first cover plate 6 and the second cover plate 12 to be removed from the protective plate 3, facilitating the user's maintenance of the sprocket 4 and the chain 5. At the same time, when the first cover plate 6 and the second cover plate 12 are in the installed state, the pin 9 will not contact the chain 5, thus preventing interference between the pin 9 and the chain 5 and completing the work.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chain with surface anti-wear function, comprising a supporting device (1), the side end of the supporting device (1) is slidingly inserted with a covering device (2), characterized in that: The covering device (2) comprises a first cover plate (6), a first alignment plate (7), an L-shaped extension frame (8), a bolt (9), a bolt (10), a second alignment plate (11) and a second cover plate (12), the first alignment plate (7) and the second alignment plate (11) are symmetrically fixedly installed at the bottom and the top of the side end of the first cover plate (6) and the second cover plate (12), the bolt (10) is threadedly inserted into the inside of the first alignment plate (7) and the second alignment plate (11), the L-shaped extension frame (8) is symmetrically fixedly installed at the top end of the first cover plate (6) and the bottom end of the second cover plate (12), and the bolt (9) is fixedly installed at the top of the side end of the L-shaped extension frame (8).

2. The chain having a surface wear prevention function according to claim 1, characterized by: The supporting device (1) comprises a protective disc (3), a chain wheel (4) and a chain (5), the chain wheel (4) is rotatably installed at the inside of the side end of the protective disc (3), and the chain (5) is engaged and sleeved on the outer ring of the chain wheel (4).

3. The chain having a surface wear prevention function according to claim 2, characterized by: The bolt (9) is symmetrically slidably inserted into the inside of the protective disc (3).

4. The chain having a surface wear prevention function according to claim 3, characterized by: The top end and the bottom end of the protective disc (3) are symmetrically provided with the insertion holes.

5. The chain having a surface wear prevention function according to claim 4, characterized by: The opposite end of the second cover plate (12) and the first cover plate (6) is provided with a circular arc groove.

6. The chain having a surface wear prevention function according to claim 5, wherein: The inside of the second alignment plate (11) and the first alignment plate (7) is provided with a threaded hole.

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