Bolt with damping function

Abstract

The utility model discloses a bolt with a shock absorption function, which comprises a screw rod and a screw cap, an internal thread is annularly arranged on the outer wall of the screw cap, a sleeve is arranged on the outer side of the screw cap, an external thread is annularly arranged on the inner wall of the sleeve, the external thread and the internal thread correspond to each other in position and are in threaded connection, and a sleeve body is arranged on the outer wall of the sleeve and is made of rubber. The sleeve and the nut are connected together in a threaded connection mode, connection is reliable, dismounting is convenient, the sleeve body of a cylindrical structure is fixedly arranged on the outer wall of the sleeve, the sleeve is reliably supported, the sleeve body is made of polyurethane rubber, the damping effect is achieved, the situation that the sleeve makes contact with the ground, and consequently the ground is abraded is avoided, and the service life of the sleeve is prolonged. When the sleeve body is worn to a certain degree, the sleeve and the sleeve body can be replaced independently, and waste of materials is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bolt technical field, especially a bolt with shock -absorbing function. BACKGROUND

[0002] Now general will be in the lower end of small -size equipment or furniture even set up multiple adjustable distance support, both can support small -size equipment or furniture, also can carry out fine adjustment, guarantee small -size equipment or furniture place's levelness.Now adjustable distance support is fixedly provided with rubber pad, however, after a period of time, the rubber pad will be greatly worn, the adjustable distance support rubs with the ground, need to replace the adjustable distance support whole, not only caused great waste, also increased use cost. SUMMARY

[0003] In order to solve above problem, the utility model provides a bolt with shock -absorbing function.

[0004] The utility model is such implementation: a bolt with shock -absorbing function, including screw rod and nut, the middle position of the end of nut is equipped with internal hexagon hole, the outer wall of nut is annularly equipped with internal thread, the outside of nut is provided with sleeve, the inside diameter of sleeve is same with the diameter of nut, guarantee the close contact of sleeve and nut, the depth in sleeve is greater than the thickness of nut, guarantee the complete contact of sleeve and nut, the sleeve is metal material, convenient and reliable connection with nut, the inner wall of sleeve is annularly equipped with external thread, the position of external thread and internal thread corresponds and is connected together in thread, guarantee the stable reliable connection of sleeve and nut, the outer wall of sleeve is fixedly provided with sleeve body, the sleeve body is cylindrical structure, reliably supports sleeve, the sleeve body is rubber material, both have the effect of shock -absorbing, also avoid the contact of sleeve and ground and cause the wear of ground.

[0005] Preferably, the material of the sleeve is stainless steel, which is firm, durable, and not easy to rust, with long service life.

[0006] Preferably, the material of the sleeve body is polyurethane rubber, which has the advantages of high hardness, good strength, high elasticity, high wear resistance, tear resistance, and aging resistance, with long service life.

[0007] Preferably, the diameter of the sleeve body is 2-3 cm larger than that of the sleeve, ensuring complete wrapping of the sleeve body on the sleeve, and the height of the sleeve body is 2-3 cm higher than that of the sleeve, achieving good shock-absorbing effect and long wear resistance time.

[0008] The sleeve is connected with the nut together through the threaded connection mode, is reliable in connection, is convenient to disassemble, the sleeve outer wall is fixedly provided with the sleeve body of the cylindrical structure, reliable support is conducted to the sleeve, the sleeve body is of polyurethane rubber material, has the effect of shock absorption, and avoids the contact between the sleeve and the ground to cause the abrasion of the ground. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a structural schematic view of the utility model;

[0010] Figure 2 It is a top view structural schematic view of the sleeve;

[0011] In the drawing: 1. screw rod, 2. nut, 3. internal hexagonal hole, 4. internal thread, 5. sleeve, 6. external thread, 7. sleeve body. DETAILED DESCRIPTION

[0012] In order to more clearly understand the technical scheme of the utility model, the utility model is further explained below in combination with the drawings.

[0013] As shown in Figure 1 And Figure 2 A bolt with shock absorption function, including screw rod 1 and nut 2, the middle position of the end of nut 2 is provided with internal hexagonal hole 3, the outer wall of nut 2 is provided with internal thread 4, the outer side of nut 2 is provided with sleeve 5, the inner diameter of sleeve 5 is same with the diameter of nut 2, ensure the close contact of sleeve 5 and nut 2, the depth in sleeve 5 is greater than the thickness of nut 2, ensure the complete contact of sleeve 5 and nut 2, the material of sleeve 5 is stainless steel, firm and durable, not easy to rust, long service life, convenient and reliable connection with nut 2, the inner wall of sleeve 5 is provided with external thread 6, the position of external thread 6 and internal thread 4 is corresponding and is connected together, ensure the stable and reliable connection of sleeve 5 and nut 2, when the lower end of nut 2 and the bottom of sleeve 5 are together, nut 2 and sleeve 5 are reliably connected together, the outer wall of sleeve 5 is fixedly provided with sleeve body 7, sleeve body 7 is cylindrical structure, reliably support sleeve 5, the diameter of sleeve body 7 is 2cm greater than the diameter of sleeve 5, ensure the complete wrapping of sleeve body 7 to sleeve 5, the height of sleeve body 7 is 3cm higher than the height of sleeve 5, good shock absorption effect, long wear-resistant time.The material of sleeve body 7 is polyurethane rubber, has the advantages of high hardness, good strength, high elasticity, high wear resistance, tear resistance, aging resistance, long service life, has the effect of shock absorption, avoids the contact between sleeve 5 and the ground to cause the abrasion of the ground.

[0014] The above merely describes preferred embodiments of the present application, and thus equivalent changes or modifications made in accordance with the structure, features and principles described in the patent application scope of the present application are included in the patent application scope of the present application.

Claims

1. A bolt with a shock absorbing function, comprising a screw rod and a nut, a hexagonal hole is formed in the middle of the end of the nut, characterized in that, The outer wall of the nut is provided with an internal thread, the outer side of the nut is provided with a sleeve, the inner diameter of the sleeve is the same as the diameter of the nut, the depth of the sleeve is greater than the thickness of the nut, the sleeve is made of metal, the inner wall of the sleeve is provided with an external thread, the external thread is in corresponding position with the internal thread and is screwed together, the outer wall of the sleeve is fixedly provided with a sleeve body, the sleeve body is in a cylindrical structure, and the sleeve body is made of rubber.

2. The bolt with a shock absorbing function according to claim 1, characterized in that, The material of the sleeve is stainless steel.

3. The bolt with a shock absorbing function according to claim 1, characterized in that, The material of the sleeve body is polyurethane rubber.

4. The bolt with a shock absorbing function according to claim 1, wherein The diameter of the sleeve body is 2-3 cm larger than the diameter of the sleeve, and the height of the sleeve body is 2-3 cm higher than the height of the sleeve.

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