A novel internal and external chain plate structure

Abstract

This utility model belongs to the field of chain technology and discloses a novel inner and outer chain plate structure, including an inner chain plate and an outer chain plate made of high-strength steel. The inner chain plate includes a long strip-shaped first chain plate body, with first shaft holes at both ends and first flat-head chamfered structures at both ends. A first recessed arc groove is provided inwardly at the waist of the first chain plate body. A first hollow hole is provided between the two first shaft holes in the first chain plate body. The outer chain plate includes a long strip-shaped second chain plate body, with second shaft holes at both ends corresponding to the first shaft holes. A second hollow hole is provided between the two second shaft holes in the first chain plate body. This utility model has the advantages of being lightweight, having high strength and being resistant to deformation, and exhibiting good chain compatibility.

Description

Technical Field

[0001] This utility model relates to the field of chain technology, and in particular to a novel inner and outer chain plate structure. Background Technology

[0002] Chains are generally made of metal links or rings and are mostly used for mechanical transmission and traction. The inner and outer links of existing chains use figure-eight shaped links, which are thin in the middle and thick at both ends. Lightweighting is achieved through material distribution optimization, and the arc-shaped transition area disperses the impact load during chain meshing. However, the narrow middle area of ​​the figure-eight shape is prone to stress concentration points, which may lead to fatigue cracks under long-term alternating loads. The narrow waist of the link results in weak lateral bending resistance and easy torsion deformation, affecting the meshing accuracy between the chain and the sprocket. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a novel inner and outer chain plate structure, which has the advantages of being lightweight, having high strength and being resistant to deformation, and having good chain compatibility.

[0004] The technical solution adopted by this utility model is: a novel inner and outer chain plate structure, including an inner chain plate and an outer chain plate made of high-strength steel. The inner chain plate includes a long strip-shaped first chain plate body, with first shaft holes at both ends of the first chain plate body, and first flat-head chamfered structures at both ends of the first chain plate body; a first recessed arc groove is provided inwardly at the waist of the first chain plate body; a first hollow hole is provided between the two first shaft holes of the first chain plate body; a first horizontally arranged first reinforcing rib is provided on the upper inner side of the first chain plate body; and a second arc-shaped reinforcing rib is provided along the first recessed arc groove of the first chain plate body.

[0005] The first chain plate body is provided with a first reinforcing ring surrounding the first shaft hole on the inner side of the first shaft hole;

[0006] The outer chain plate includes a long strip-shaped second chain plate body. The two ends of the second chain plate body are provided with second shaft holes that correspond one-to-one with the first shaft holes. The first chain plate body is provided with a second hollow hole between the two second shaft holes.

[0007] Preferably, the waist of the second chain plate body is provided with a second downwardly recessed arc groove; the second chain plate body is provided with an arc-shaped third reinforcing rib arranged along the second downwardly recessed arc groove.

[0008] Preferably, the second chain plate body is provided with a second reinforcing ring arranged around the periphery of the second shaft hole on the inner side of the second shaft hole, and a first micro-chamfering mechanism is provided on the inner side of the upper and lower ends of the first chain plate body.

[0009] Preferably, the second chain plate body is provided with a second micro-beveling mechanism.

[0010] Preferably, the two ends of the second chain plate body are provided with a second flat-head chamfer structure.

[0011] The beneficial effects of this invention are as follows: Both the inner and outer chain plates feature a hollow structure, which reduces weight and thus rotational inertia. This makes the bicycle crank-chain-rear wheel system easier to start, accelerate, and change speed, resulting in a more responsive design. Furthermore, the addition of reinforcing ribs ensures overall strength. Additionally, the recessed grooves in the waist of both the inner and outer chain plates significantly improve chain compatibility and shifting speed, better guide chain engagement, and reduce contact area with chain teeth, thus reducing chain wear and enabling more precise and faster shifting. Attached Figure Description

[0012] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0013] Figure 1 This is a schematic diagram of the outer structure of the inner chain plate of this utility model;

[0014] Figure 2 This is a schematic diagram of the inner side structure of the inner chain plate of this utility model;

[0015] Figure 3 This is a schematic diagram showing the arrangement of the first micro-chamfering mechanism of this utility model;

[0016] Figure 4 This is a schematic diagram of the outer structure of the outer chain plate of this utility model;

[0017] Figure 5 This is a schematic diagram of the inner structure of the outer chain plate of this utility model;

[0018] Figure 6 This is a schematic diagram of the second micro-chamfering mechanism of this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Inner chain plate; 101. First chain plate body; 102. First shaft hole; 103. First flat-head chamfered structure; 104. First recessed arc groove; 105. First hollow hole; 106. First reinforcing rib; 107. Second reinforcing rib; 108. First reinforcing ring; 109. First micro-chamfering mechanism; 2. Outer chain plate; 201. Second chain plate body; 202. Second shaft hole; 203. Second hollow hole; 205. Second recessed arc groove; 206. Third reinforcing rib; 207. Second reinforcing ring; 208. Second micro-chamfering mechanism; 209. Second flat-head chamfered structure. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0021] like Figures 1 to 6 As shown, this embodiment provides a novel inner and outer chain plate structure, including an inner chain plate 1 and an outer chain plate 2 made of high-strength steel. The inner chain plate 1 includes a long strip-shaped first chain plate body 101. The two ends of the first chain plate body 101 are provided with first shaft holes 102, and the two ends of the first chain plate body 101 are provided with first flat-head chamfered structures 103. The waist of the first chain plate body 101 is provided with a first recessed arc groove 104 that is recessed inward. The first chain plate body 101 is provided with a first hollow hole 105 between the two first shaft holes 102. The upper inner side of the first chain plate body 101 is provided with a horizontally arranged first reinforcing rib 106. The first chain plate body 101 is provided with a second arc-shaped rib that is arranged along the first recessed arc groove 104. The inner chain plate features a reinforcing rib 107; the inner chain plate has a first recessed arc groove at the bottom that significantly improves chain compatibility and shifting speed, better guides the sprocket engagement, and reduces the contact area with the sprocket teeth, reducing chain wear and enabling more precise and faster shifting. The upper inner side of the first chain plate body 101 has a horizontally arranged first reinforcing rib 106, and the first chain plate body 101 has a second reinforcing rib 107 that is arc-shaped and arranged along the first recessed arc groove 104. This greatly improves the strength of the inner chain plate, and the inner chain plate has a first hollow hole 105, which reduces its weight and means reduced rotational inertia. This makes the bicycle crank-chain-rear wheel system easier to start, accelerate, and change speed, with a more sensitive response.

[0022] The first chain plate body 101 is provided with a first reinforcing ring 108 surrounding the first shaft hole 102 on the inner side of the first shaft hole 102; this strengthens the strength of the first shaft hole, making the first shaft hole less prone to deformation, thus having high strength.

[0023] The outer chain plate 2 includes a long strip-shaped second chain plate body 201. The two ends of the second chain plate body 201 are provided with second shaft holes 202 that correspond one-to-one with the first shaft holes 102. The first chain plate body 101 is provided with a second hollow hole 203 between the two second shaft holes 202. The outer chain plate is provided with a hollow structure. This reduces its weight and means that the rotational inertia is reduced. This makes it easier for the bicycle crank-chain-rear wheel system to start, accelerate and change speed, and the response is more sensitive.

[0024] The second chain plate body 201 has an inwardly recessed arc groove 205 on its waist; the outer chain plate also has a recessed arc groove on its waist, which significantly improves chain compatibility and speed change, better guides the toothed disc meshing, and reduces the contact area with the toothed disc tip to reduce chain wear, allowing for more precise and faster speed change. The second chain plate body 201 also has an arc-shaped third reinforcing rib 206 set along the second recessed arc groove 205, which greatly improves the strength of the outer chain plate.

[0025] The second chain plate body 201 is provided with a second reinforcing ring 207 arranged around the periphery of the second shaft hole 202 on the inner side of the second shaft hole 202, which strengthens the strength of the second shaft hole and makes the second shaft hole less prone to deformation, thus having high strength.

[0026] The inner sides of the upper and lower ends of the first chain plate body 101 are provided with a first micro-chamfering mechanism 109.

[0027] The second chain plate body 201 is provided with a second micro-beveling mechanism 208. The micro-beveling design on the upper part can help users better distinguish the correct installation direction of the chain, and at the same time make the chain speed change smoother.

[0028] The two ends of the second chain plate body 201 are provided with a second flat-head chamfer structure 209. The unique flat-head chamfer of the outer chain plate makes it easier to distinguish the orientation of the chain plates during chain assembly, reducing social energy consumption and improving production efficiency; this design has a significant improvement in chain compatibility and noise reduction.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] The working principle is as follows: the inner chain plate has an inwardly recessed arc groove at the bottom, which significantly improves chain compatibility and shifting speed. It can better guide the meshing of the chainring, while reducing the contact area with the chainring tooth tip, reducing chain wear, and enabling more precise and faster shifting. The upper inner side of the first chain plate body 101 has a horizontally arranged first reinforcing rib 106, and the first chain plate body 101 has an arc-shaped second reinforcing rib 107 arranged along the first recessed arc groove 104. This greatly improves the strength of the inner chain plate. In addition, the inner chain plate has a first hollow hole 105, which reduces its weight and means reduced rotational inertia. This makes it easier for the bicycle's crank-chain-rear wheel system to start, accelerate, and change speed, and the response is more sensitive. The outer chain plate also has a hollow structure, which reduces its weight and means reduced rotational inertia. This makes it easier for the bicycle's crank-chain-rear wheel system to start, accelerate, and change speed, and the response is more sensitive.

[0031] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A new type of inner and outer link plate structure, characterized in that: The system includes an inner chain plate (1) and an outer chain plate (2) made of high-strength steel. The inner chain plate (1) includes a long strip-shaped first chain plate body (101). The first chain plate body (101) has first shaft holes (102) at both ends and first flat-head chamfered structures (103) at both ends. The waist of the first chain plate body (101) has a first recessed arc groove (104) that is recessed inward. The first chain plate body (101) has a first hollow hole (105) between the two first shaft holes (102). The upper inner side of the first chain plate body (101) has a horizontally arranged first reinforcing rib (106) and a second reinforcing rib (107) that is arc-shaped and arranged along the first recessed arc groove (104). The first chain plate body (101) is provided with a first reinforcing ring (108) surrounding the first shaft hole (102) on the inner side of the first shaft hole (102); The outer chain plate (2) includes a long strip-shaped second chain plate body (201). The two ends of the second chain plate body (201) are provided with second shaft holes (202) that correspond one-to-one with the first shaft hole (102). The first chain plate body (101) is provided with a second hollow hole (203) between the two second shaft holes (202).

2. A novel inner and outer link plate structure according to claim 1, characterized in that: The second chain plate body (201) has a second downward recessed arc groove (205) at its waist; the second chain plate body (201) has an arc-shaped third reinforcing rib (206) arranged along the second downward recessed arc groove (205).

3. A novel inner and outer link plate structure according to claim 1, characterized in that: The second chain plate body (201) has a second reinforcing ring (207) arranged around the periphery of the second shaft hole (202) on the inner side of the second shaft hole (202).

4. A novel inner and outer link plate structure according to claim 1, characterized in that: The inner sides of the upper and lower ends of the first chain plate body (101) are provided with a first micro-chamfering mechanism (109).

5. A novel inner and outer link plate structure according to claim 1, characterized in that: The second chain plate body (201) is provided with a second micro-chamfering mechanism (208).

6. A novel inner and outer link plate structure according to claim 1, characterized in that: The two ends of the second chain plate body (201) are provided with a second flat-head chamfered structure (209).

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