Novel lightweight and high-strength bicycle chain

CN224392879UActive Publication Date: 2026-06-23JIANGSU CHIYUAN CHAIN CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU CHIYUAN CHAIN CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing bicycle chains are heavy and prone to wear, resulting in reduced strength and inconvenience in disassembly and maintenance.

Method used

The design incorporates a lightweight structure with wear-resistant and support cylinders, heat dissipation grooves and insertion slots, and uses connecting rods and limiting sleeves for combined connection, enhancing the chain's wear resistance and heat dissipation, and facilitating disassembly and maintenance.

Benefits of technology

It achieves lightweight and high strength in the chain, improves wear resistance and heat dissipation, and facilitates disassembly and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a bicycle chain related technical field especially, it relates to a novel lightweight and high strength's bicycle chain, including wear -resistant cylinder, wear -resistant cylinder's inside sliding sleeve joint has support cylinder, the inside of support cylinder has support shaft, the surface of support shaft is provided with the heat dissipation groove, the middle of support shaft is opened and has the insertion slot, the inside sliding of insertion slot has the connecting rod, the both ends of support shaft are connected with first chain plate. Can reduce the weight of chain through setting weight reduction groove and reinforcing strip, and improve the use intensity of chain, through wear -resistant cylinder strengthens the wear and tear of chain, and improves the heat dissipation effect of chain through the heat dissipation groove and the insertion hole, through the both ends of connecting rod dismantling and installing limit sleeve, and limit sleeve is through the sliding abutment of connecting ring and connecting plate to abut ring, thus, can conveniently dismantle abutment ring, first chain plate and second chain plate.
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Description

Technical Field

[0001] This utility model relates to the technical field of bicycle chains, and in particular to a novel lightweight and high-strength bicycle chain. Background Technology

[0002] Bicycles are an indispensable means of transportation in daily life. Their working principle is that the rider pedals, causing the chain to rotate, which in turn drives the wheels, propelling the bicycle forward. The chain is one of the most basic components of a bicycle, playing a crucial role in transmission and traction. It's a vital link between the two, and its quality directly affects the rider's experience and the bicycle's proper functioning. A bicycle chain is a common transmission device composed of individual links. During use, it interacts with gears. During this process, the pins and bushings constantly contact the gears, experiencing considerable vibration. Simultaneously, the chain is subjected to traction, and different links may come into contact with each other.

[0003] Existing bicycle chains have a solid structure, making them heavy. The support shaft and surface are subject to friction and wear from the bicycle freewheel, causing the chain surface to heat up, reducing its strength and potentially leading to breakage. They also make it difficult to dissipate heat from the chain surface. Furthermore, once broken, the chain is relatively fixed, making it inconvenient to disassemble, replace, and maintain.

[0004] To address this, we designed a new type of lightweight and high-strength bicycle chain to meet the needs of practical applications. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a novel lightweight and high-strength bicycle chain.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel lightweight and high-strength bicycle chain is designed, including a wear-resistant cylinder, a support cylinder that is slidably sleeved inside the wear-resistant cylinder, a support shaft that passes through the inside of the support cylinder, a heat dissipation groove provided on the surface of the support shaft, an insertion groove in the middle of the support shaft, a connecting rod that slides through the insertion groove, a first chain plate connected to both ends of the support shaft, and a second chain plate slidably disposed on the outside of the first chain plate.

[0008] In detail, the support shaft is a cylindrical structure, and the heat dissipation groove is a long strip structure.

[0009] In detail, an abutment ring is slidably installed on the outer side of the second chain plate, a connecting plate is fixed on the outer side of the abutment ring, and a connecting ring is fixed on the inner end of the connecting plate.

[0010] In detail, the abutment ring is slidably sleeved on both ends of the support shaft, the gap of the connecting ring is set on the outside of the support shaft, and the connecting plate is distributed in a cross shape.

[0011] In detail, the two ends of the connecting rod slide through the connecting ring, the two ends of the connecting rod have a threaded surface structure and are threadedly connected to a limiting sleeve, and the limiting sleeve is slidably disposed on the outside of the connecting ring.

[0012] In detail, the inner surface of the limiting sleeve is a threaded surface structure and is threadedly connected to both ends of the connecting rod. The two ends of the connecting rod have first insertion holes, and the surface of the limiting sleeve has a second insertion hole. Bolts are inserted into the second insertion hole and the first insertion hole. The first insertion hole is a threaded hole structure.

[0013] In detail, the second chain plate has mounting holes at both ends, the support shaft slides through the mounting holes, the surface of the second chain plate has a weight reduction groove, and a reinforcing strip is fixed in the internal gap of the weight reduction groove. The first chain plate and the second chain plate have the same structure.

[0014] Core function: Heat dissipation grooves are evenly distributed on the surface of the support shaft, and the support cylinder is slidably sleeved on the plate of the support shaft, while the wear-resistant cylinder is slidably sleeved on the outer surface of the support cylinder.

[0015] The two ends of the first chain plate are slidably inserted into the two ends of the support shaft, and the two ends of the second chain plate are inserted into the two ends of the support shaft and slidably connected to the outside of the first chain plate.

[0016] A weight-reducing groove is provided on the surface of the second chain plate, and a reinforcing strip is provided inside the weight-reducing groove. The first chain plate has the same structure as the first chain plate, so the weight of the chain can be reduced and the strength of the chain can be increased.

[0017] A slot is provided inside the support shaft to accelerate heat dissipation and cooling, and a connecting rod can be slidably inserted into the slot.

[0018] The abutment ring slides onto the surface of the support shaft and slides against the outside of the second chain plate; moreover, the connecting ring is fixed to the outside of the abutment ring by the connecting plate.

[0019] A limiting sleeve is threaded onto the surface of the connecting rod, and the limiting sleeve is installed by bolt positioning and sliding against the connecting ring, thereby limiting the installation of the first chain plate and the second chain plate, and facilitating disassembly, installation, replacement and maintenance.

[0020] The design scheme proposed in this utility model has the following beneficial effects in application:

[0021] 1. The weight of the chain can be reduced and the strength of the chain can be increased by setting weight-reducing grooves and reinforcing bars. The wear-resistant cylinder can be used to enhance the wear resistance of the chain, and the heat dissipation effect of the chain can be improved by heat dissipation grooves and plug holes.

[0022] 2. By removing and installing limiting sleeves at both ends of the connecting rod, and the limiting sleeves sliding against the abutment ring through the connecting ring and the connecting plate, it is easy to remove the abutment ring, the first chain plate and the second chain plate. Attached Figure Description

[0023] Figure 1 This is an axonometric view of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the supporting shaft and the second chain plate of this utility model.

[0025] Figure 3 This is a schematic diagram of the support shaft part of this utility model;

[0026] Figure 4 This is a schematic diagram of the support cylinder and connecting rod of this utility model.

[0027] Figure 5 This is a schematic diagram of the limiting sleeve part of this utility model;

[0028] Figure 6 This is a schematic diagram of the abutment ring portion of this utility model.

[0029] In the diagram: 1. Wear-resistant cylinder; 2. Second chain plate; 3. Mounting hole; 4. Weight reduction groove; 5. Reinforcing strip; 6. First chain plate; 7. Abutment ring; 8. Connecting rod; 9. Support shaft; 10. Heat dissipation groove; 11. Limiting sleeve; 12. Bolt; 13. Connecting plate; 14. Insertion groove; 15. Support cylinder; 16. First insertion hole; 17. Second insertion hole; 18. Connecting ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Reference Figures 1-6 A novel lightweight and high-strength bicycle chain includes a wear-resistant cylinder 1, a support cylinder 15 that is slidably sleeved inside the wear-resistant cylinder 1, a support shaft 9 that passes through the inside of the support cylinder 15, a heat dissipation groove 10 that is provided on the surface of the support shaft 9, a insertion groove 14 that is opened in the middle of the support shaft 9, a connecting rod 8 that slides through the inside of the insertion groove 14, a first chain plate 6 that is connected to both ends of the support shaft 9, and a second chain plate 2 that is slidably disposed on the outside of the first chain plate 6.

[0032] It should be further noted that the support shaft 9 is a cylindrical structure, and the heat dissipation groove 10 is a long strip structure.

[0033] It should be further noted that an abutment ring 7 is slidably installed on the outer side of the second chain plate 2, a connecting plate 13 is fixed on the outer side of the abutment ring 7, and a connecting ring 18 is fixed on the inner end of the connecting plate 13.

[0034] It should be further noted that the abutment ring 7 is slidably sleeved on both ends of the support shaft 9, the connecting ring 18 is spaced on the outside of the support shaft 9, and the connecting plate 13 is distributed in a cross shape.

[0035] It should be further noted that the two ends of the connecting rod 8 slide through the connecting ring 18. The two ends of the connecting rod 8 have a threaded surface structure and are threadedly connected to the limiting sleeve 11. The limiting sleeve 11 is slidably disposed on the outside of the connecting ring 18.

[0036] It should be further noted that the inner surface of the limiting sleeve 11 is a threaded surface structure and is threaded to both ends of the connecting rod 8. The two ends of the connecting rod 8 have first insertion holes 16, and the surface of the limiting sleeve 11 has second insertion holes 17. Bolts 12 are inserted into the second insertion hole 17 and the first insertion hole 16. The first insertion hole 16 is a threaded hole structure.

[0037] It should be further noted that the second chain plate 2 has mounting holes 3 at both ends, the support shaft 9 slides through the mounting holes 3, the surface of the second chain plate 2 has a weight reduction groove 4, and the internal gap of the weight reduction groove 4 is fixed with a reinforcing strip 5. The first chain plate 6 has the same structure as the second chain plate 2.

[0038] Working principle: Heat dissipation grooves are evenly arranged on the surface of the support shaft, and the support cylinder is slidably sleeved on the plate of the support shaft, and the wear-resistant cylinder is slidably sleeved on the outer surface of the support cylinder.

[0039] The two ends of the first chain plate are slidably inserted into the two ends of the support shaft, and the two ends of the second chain plate are inserted into the two ends of the support shaft and slidably connected to the outside of the first chain plate.

[0040] A weight-reducing groove is provided on the surface of the second chain plate, and a reinforcing strip is provided inside the weight-reducing groove. The first chain plate has the same structure as the first chain plate, so the weight of the chain can be reduced and the strength of the chain can be increased.

[0041] A slot is provided inside the support shaft to accelerate heat dissipation and cooling, and a connecting rod can be slidably inserted into the slot.

[0042] The abutment ring slides onto the surface of the support shaft and slides against the outside of the second chain plate; moreover, the connecting ring is fixed to the outside of the abutment ring by the connecting plate.

[0043] A limiting sleeve is threaded onto the surface of the connecting rod, and the limiting sleeve is installed by bolt positioning and sliding against the connecting ring, thereby limiting the installation of the first chain plate and the second chain plate, and facilitating disassembly, installation, replacement and maintenance.

[0044] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A novel lightweight and high-strength bicycle chain, including a wear-resistant cylinder (1), characterized in that: The wear-resistant cylinder (1) is slidably sleeved with a support cylinder (15), and a support shaft (9) passes through the inside of the support cylinder (15). The surface of the support shaft (9) is provided with a heat dissipation groove (10). A plug groove (14) is opened in the middle of the support shaft (9). A connecting rod (8) slides through the inside of the plug groove (14). The two ends of the support shaft (9) are connected to a first chain plate (6), and a second chain plate (2) is slidably arranged on the outside of the first chain plate (6).

2. The novel lightweight and high-strength bicycle chain according to claim 1, characterized in that: The support shaft (9) is a cylindrical structure, and the heat dissipation groove (10) is a long strip structure.

3. The novel lightweight and high-strength bicycle chain according to claim 1, characterized in that: An abutment ring (7) is slidably installed on the outer side of the second chain plate (2), and a connecting plate (13) is fixed on the outer side of the abutment ring (7), and a connecting ring (18) is fixed on the inner end of the connecting plate (13).

4. The novel lightweight and high-strength bicycle chain according to claim 3, characterized in that: The abutment ring (7) is slidably sleeved on both ends of the support shaft (9), the connecting ring (18) is spaced on the outside of the support shaft (9), and the connecting plate (13) is distributed in a cross shape.

5. The novel lightweight and high-strength bicycle chain according to claim 4, characterized in that: The two ends of the connecting rod (8) slide through the connecting ring (18). The two ends of the connecting rod (8) are threaded and threadedly connected to a limiting sleeve (11). The limiting sleeve (11) is slidably disposed on the outside of the connecting ring (18).

6. The novel lightweight and high-strength bicycle chain according to claim 5, characterized in that: The inner surface of the limiting sleeve (11) is a threaded surface structure and is threaded to both ends of the connecting rod (8). The two ends of the connecting rod (8) have a first insertion hole (16) and the surface of the limiting sleeve (11) has a second insertion hole (17). Bolts (12) are inserted into the second insertion hole (17) and the first insertion hole (16). The first insertion hole (16) is a threaded hole structure.

7. The novel lightweight and high-strength bicycle chain according to claim 1, characterized in that: The second chain plate (2) has mounting holes (3) at both ends, and the support shaft (9) slides through the mounting holes (3). The surface of the second chain plate (2) has a weight reduction groove (4), and a reinforcing strip (5) is fixed in the internal gap of the weight reduction groove (4). The first chain plate (6) has the same structure as the second chain plate (2).