An anti-slip chain link that does not damage the tire and does not damage the road surface

Abstract

An anti-slip chain link that does not damage the tire and the road surface belongs to the field of automotive driving safety. It solves the damage of the chain link to the tire and the road surface and reduces the generated noise. The specific solution is: the two straight sides of the circular chain are respectively processed into a flat shape with an elliptical cross-section, with an elliptical base formed on one side and an elliptical top formed on the other side. When assembling the anti-slip chain, the chain link of the present invention is alternately connected with the existing chain link, and the bases of the new chain links face the same direction. After being bundled and installed on the tire, the chain link base closely adheres to the tread and "stands" on the tread. Due to the large area of the base, the number of force-bearing surfaces of the tire increases several times, and the pressure will be reduced several times. Moreover, the new chain link with an elliptical flat bottom can roll along the tire surface within a certain range after being stressed, eliminating the nibbling and filing of the tire caused by the twisting and sliding of the existing chain link on the tread, thereby protecting the tire from damage. The increase in the area of the top of the new chain link and its ability to roll along the road surface to buffer the contact with the road surface protect the road surface.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle driving safety, and particularly relates to an anti-skid chain link. Background Art

[0002] The steel anti-skid chains widely used in the current market are formed by linking multiple chain links and bundling them on the tires to increase the friction between the tires and the ice and snow road surface so as to achieve the anti-skid effect. However, the steel chains and the tires in the prior art are in point, line, and small-area contact, and the force-bearing surface of the tires is very small; and due to the connection method, the state of the chain links is very difficult to control. After the chain links are stressed, they become extremely unstable and will twist back and forth on the tire surface. When the vehicle is driving, when the chain links contact the ground, the chain link group is pressed between the tire and the ground. Due to the huge mass of the vehicle and the goods, under the strong pressure, the torsion of the chain link group will file the tire surface. After a long time, the tire surface will be severely damaged, and the service life of the tire will be greatly reduced. If the vehicle is driving on a road without snow or with a very thin snow layer, it will also cause certain damage to the road surface; the noise generated when the chain links touch the road surface will also increase. Summary of the Invention

[0003] The purpose of the present invention is to provide a steel anti-skid chain link to solve the damage of the steel chain to the tire, the damage to the road surface, and the reduction of the noise generated by the steel chain when the vehicle is driving on the ice and snow road surface. To achieve the above purpose, the technical solution provided by the present invention is: the two straight sides of the circular chain are respectively processed into a flat shape with an elliptical cross-section, one side forms an elliptical flat bottom, and the other side forms an elliptical flat top, so that the surface area of the elliptical flat bottom is larger than the surface area of the elliptical flat top, forming a circular chain with a bottom and a top and an elliptical cross-section of the straight side (hereinafter referred to as the new chain link).

[0004] If the steel anti-skid chain in the prior art needs to be upgraded and transformed, the new chain link is used to replace one section of the existing chain link every other section. After the new chain link and the existing chain link are alternately arranged and bundled on the tire, the bottom of the new chain link is closely attached to the tire surface, and all the new chain links are in a "standing" state, while the existing chain links are in a suspended state. The anti-skid chain arranged in this way is almost entirely in contact with the tire by the new chain link, and all are the large-area bases of the new chain link. In this way, the point, line, and small-area unstable contact between the prior art anti-skid chain and the tire is all changed to the large-area stable contact after upgrading, and the force-bearing surface of the tire is increased to several times the original. Under the condition of a certain pressure, when the force-bearing surface area of the tire increases several times, the pressure will be reduced several times, and the damage of the chain link to the tire surface will be greatly reduced; in addition, due to the change of the external force direction, the new chain link with an elliptical flat bottom can roll along the tire surface within a certain range, changing the torsion and sliding of the existing chain link on the tire surface into rolling, and the rolling wears the tire surface slightly, so that the filing of the prior art anti-skid chain to the tire can be resolved, and the damage of the upgraded anti-skid chain to the tire surface immediately becomes negligible.

[0005] The base of the new link is an oval flat bottom. After the link is pressed, since the rubber tire is an elastomer, the oval bottom will sink into the contact surface by a certain amount, which not only increases the force-bearing surface of the tread but also increases the "grip" force of the tire on the link. As a result, after the link penetrates into the ice and snow layer, it is not easily displaced under external pulling force, and the entire anti-skid chain remains stable in binding.

[0006] When every other link of the prior art anti-skid chain is replaced with a new link, the top of the new link contacts the road surface. Compared with the existing links, the contact surface increases significantly. Similarly, as described above, when the force-bearing surface increases, the pressure on the road surface will decrease. This is one aspect where the new link does not damage the road surface. During the operation of the tire, since the new link maintains high stability, for the same reason as described above, the link no longer grinds the tire and also no longer grinds the road surface. This is the second aspect where the new link does not damage the road surface. Also, due to the characteristic of the new link having an upper top and a lower bottom, when it touches the road surface, the link base has a relative roll along the tread and the link top has a relative roll along the road surface. The roll increases the contact time between the link and the road surface, thus buffering the impact of the link on the road surface well, and the relative impact force becomes smaller. This is the third aspect where the new link does not damage the road surface.

[0007] A pair of anti-skid chains is composed of hundreds of links connected together. After the upgrade, since half of the existing links are replaced with new links and all the new links "stand" on the tire surface, the links change from being free and disorderly to being orderly and reasonable. The stability between the links, between the links and the tire, and between the links and the ground is greatly improved. Moreover, when the link touches the road surface, the link base has a relative roll along the tread and the link top has a relative roll along the road surface. The mutual force generated during contact has a certain time buffer, the impact force becomes smaller, and the noise also decreases accordingly. In summary, due to the replacement of the new links, the noise generated between the links and between the links and the road surface of the upgraded anti-skid chain will decrease.

[0008] The main reasons for the damage to the road surface and the noise generated during operation by the steel anti-skid chain are that the anti-skid chain is arranged intermittently in the circumferential direction of the tire, the wrapping is not in place, and the vehicle bumps forward.

[0009] For a steel anti-skid chain that can be continuously arranged in the circumferential direction of the tire, it is believed that the three common drawbacks of the prior art anti-skid chain, namely, damaging the tire, damaging the road surface, and generating noise, can be solved when the new link combination is incorporated. Brief Description of the Drawings

[0010] Figure 1 It is a three-dimensional view of the main body of the present invention;

[0011] Figure 2 It is a three-dimensional view of the prior art link;

[0012] Figure 3 It is a right side view of the main body of the present invention and the prior art link;

[0013] Figure 4 Schematic diagram of the connection between the main body of the present invention and the prior art link

[0014] Figure 5 Schematic diagram of the new link in Example 1 instantaneously cutting into the ice and snow layer

[0015] Figure 6 Schematic diagram of the new link in Example 1 hooking into the ice and snow layer after being blocked

[0016] Figure 7 Schematic diagram of the new link in Example 2 being pressed between the tire and the ice and snow layer

[0017] Icon: 1 - Main body of the present invention; 2 - Prior art link; 3 - Tire; 4 - Ice and snow layer; 11, 12, 13, 14 - Four plow head surfaces of the main body of the present invention. Detailed implementation manners

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] As Figure 1 shown, on one side of the straight edge of the endless chain, an elliptical flat bottom is formed, and on the other side, an elliptical flat top is formed. Four plow head surfaces 11, 12, 13, and 14 are formed at the transition between the flat top and the arc edge.

[0020] As Figure 1 , Figure 2 , Figure 3 shown, the contact area between the top of the new link and the road surface has increased significantly compared with the existing link, and the pressure on the road surface has been greatly reduced. When the link touches the ground, the link base rolls along the tread and the top rolls along the road surface within a certain range. The rolling increases the contact time with the road surface and buffers the collision with the road surface. The new link can well protect the road surface.

[0021] As Figure 1 , Figure 2 , Figure 3 shown, the contact area between the base of the new link and the tire is several times that of the existing link, and the pressure on the tire is reduced by several times. After the new link is stressed, the elliptical bottom can roll along the tread within a certain range, and the torsion and sliding of the existing link on the tread that rasp the tire are resolved. The new link can well protect the tire.

[0022] After the new link is compressed, the elliptical base sinks into the tire by a part, which not only increases the stress surface of the tire but also increases the "grip" force of the tire on the link base, so that the link is not easily displaced when pulled by an external force, and the entire anti-skid chain is kept stable in the binding.

[0023] As Figure 4As shown, when the existing steel anti-skid chain that needs to be improved and upgraded is assembled and processed, the new chain links adopt a one-time forming processing method, and the new chain links and the existing chain links are alternately connected. When the entire anti-skid chain is laid flat, it is necessary to ensure that the bases of all the new chain links face the same direction.

[0024] For clear presentation, Figure 5 、 Figure 6 、 Figure 7 One section of the chain link is selected for illustration.

[0025] Embodiment 1: As shown in Figure 5 、 Figure 6 When a certain section of the anti-skid chain is arranged horizontally on the tire surface and the tire rotates counterclockwise, when the chain link comes into contact with the ice and snow road surface instantaneously, one side of the flat top formed by the new chain link forms a cutting angle with the ice and snow layer and then cuts into the ice and snow layer smoothly, providing forward power for the tire; when the new chain link is pressed between the tire and the road surface and the tire rotates counterclockwise, and at this time braking is applied, the chain link is blocked and rolls through a certain angle along the tire surface, and the other side of the flat top formed by the new chain link will firmly hook into the ice and snow layer, making the braking easy.

[0026] Embodiment 2: As shown in Figure 7 When a certain section of the anti-skid chain is arranged circumferentially on the tire surface and the tire rotates counterclockwise, when the new chain link comes into contact with the ice and snow road surface, the two plow head surfaces on the right side of the 11 formed by the new chain link will plow and push the ice and snow, generating forward power for the tire; when the new chain link is pressed between the tire and the ground and the tire rotates counterclockwise, and at this time braking is applied, the two plow head surfaces on the left side of the 13 formed by the new chain link will block and push the ice and snow, making the braking easy.

[0027] Embodiment 3: When a certain section of the anti-skid chain is neither arranged circumferentially nor horizontally on the tire surface, that is, arranged obliquely, the effects generated in Embodiment 1 and Embodiment 2 will work simultaneously.

[0028] The above embodiments are used to help illustrate the present invention in the popularization and production of steel anti-skid chains, but do not limit the scope of use of the present invention.

[0029] The present invention aims to protect the tire and the road surface and reduce noise. The comprehensive consideration of the chain link material is characteristics such as easy processing and forming, wear resistance, high strength, and light weight. The requirements for the size of the chain link are: while the base can protect the tire, it does not infinitely increase the size of the base and can maintain the stability of the chain link; while the top can protect the road surface, it does not infinitely increase the top area and can easily penetrate into the ice and snow layer.

[0030] The idea of the present invention is that on one side of the chain link, an elliptical flat bottom is formed to protect the tire and can roll within a certain range along the tread to buffer the change of external force; on the other side, an elliptical flat top is formed to protect the road surface and can roll along the road surface to buffer the collision with the road surface, and can also cut into and hook into the ice and snow layer to play a role. Modifications, replacements of the local external dimensions by those skilled in the art, or modifications that only retain one side and remove the other side will be regarded as not involving creative labor and all fall within the scope of protection of the present invention.

[0031] Effect evaluation

[0032] An anti-skid chain link that does not damage the tire or the road surface can adopt a one-time molding processing method, which is simple to process, low in cost and high in strength;

[0033] Since the new chain link is no longer welded, the breakage rate of the chain link during the use of the entire anti-skid chain is reduced, and the service life is increased;

[0034] Prevent the steel chain from damaging the tire when the vehicle is driving on an ice and snow road surface;

[0035] Prevent the steel chain from damaging the road surface when the vehicle is driving on an ice and snow road surface;

[0036] Reduce the noise generated by the steel chain during operation;

[0037] Improve the use efficiency and safety factor of the steel anti-skid chain;

[0038] Enable the vehicle to run safely and smoothly on an ice and snow road surface, and greatly reduce the occurrence of traffic accidents when the vehicle is driving in ice and snow weather;

[0039] At present, the vast majority of steel anti-skid chains with different structures on the market can be upgraded and transformed with the new chain link, so as to popularize the application of steel anti-skid chains in the field of safe driving of automobiles.

Claims

1. An anti-skid chain link that does not damage the tire and does not harm the road surface, characterized in that: The cross-sections of the two straight sides of the round-link chain are respectively oval-shaped flats, with a large-area oval base formed on one side and a small-area oval top formed on the other side. The cross-section of one straight side of the round-link chain is oval. The two arc sides gradually transition to the straight side and their dimensions continuously increase, being the widest at the middle position. The cross-sectional area at any position of the straight side is larger than that of the arc side. The cross-section of the other straight side is oval. At the transition from the two arc sides to the straight side, it expands rapidly to form 4 plow-head surfaces, and then the width dimensions are consistent and it transitions to the middle position. The cross-sectional area at any position of the straight side is larger than that of the arc side, forming a round-link chain with a base and a top.

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