CN210565648U

CN210565648U - Round nut

Info

Publication number: CN210565648U
Application number: CN201920919125.2U
Authority: CN
Inventors: 陈朝波
Original assignee: Zhejiang Boleyuan Transmission Technology Co Ltd
Current assignee: Zhejiang Boleyuan Transmission Technology Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-05-19
Anticipated expiration: 2029-06-19

Abstract

The utility model relates to a round nut, including the circular shape nut body, this internal shaft hole that is equipped with of nut has the internal thread in the shaft hole, and the periphery of nut body is equidistant is equipped with four draw-in grooves, and the one end axial extension of the screw thread screw in department of nut body has the extension circle, extension circle inner wall on be equipped with the embedded groove, embedded elastic ring in the embedded groove, the up end of elastic ring exceeds the up end of extension circle. The utility model discloses an increase extension circle and elastic ring on the basis of current round nut to exceed the terminal surface of elastic ring extension circle setting, thereby in round nut locking, the elastic ring receives the extrusion of screwing power and radial expansion, thereby increases the frictional force between elastic ring and the axle, plays the locking effect of non return, can also play the effect that prevents liquid leakage simultaneously.

Description

Round nut

Technical Field

The utility model relates to a fastener technical field, concretely relates to round nut.

Background

Round nuts are one type of nut and are often used in conjunction with a stop pad. The existing round nut is poor in anti-loosening effect, looseness easily occurs in the rotating process of mechanical vibration or a shaft, so that the abrasion of the shaft between parts during operation is increased, the rotation is not stable, and the noise is increased.

SUMMERY OF THE UTILITY MODEL

To the deficiency in the background art, the utility model provides a round nut.

The utility model adopts the technical proposal that: the utility model provides a round nut, includes the circular shape nut body, this internal shaft hole that is equipped with of nut, the internal thread has in the shaft hole, the periphery of nut body is equidistant is equipped with four draw-in grooves, the one end axial extension of the screw in department of nut body has the extension circle, extension circle inner wall on be equipped with the embedded groove, the embedded elastic ring of embedded in the embedded groove, the up end of elastic ring exceeds the up end of extension circle.

Further, the cross section of the embedded groove is of an isosceles trapezoid structure.

Furthermore, the elastic ring is composed of an inner ring and a connecting ring integrally formed on the outer ring of the inner ring, and the section of the connecting ring is of an isosceles trapezoid structure matched with the embedding groove.

Further, the elastic ring is made of rubber or nylon.

Furthermore, the upper end face of the elastic ring is 0.5-2mm higher than that of the extension ring.

Furthermore, the end face of the elastic ring extending out of the extension ring is provided with anti-skid grains, and the anti-skid grains are of an arc structure.

The utility model has the advantages that: the utility model discloses an increase extension circle and elastic ring on the basis of current round nut to with the terminal surface of elastic ring over extension circle setting, thereby in round nut locking, the elastic ring receives the extrusion of screwing power and radial expansion, thereby increases the frictional force between elastic ring and the axle, plays the locking effect of non return, can also play the effect that prevents liquid leakage simultaneously, has simple structure, low cost, the batch production's of being convenient for advantage.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided.

The present invention will be described in further detail below with reference to the drawings.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention.

Fig. 2 is a top view of the present invention.

In the figure: 1. a nut body; 2. a shaft hole; 3. a card slot; 4. lengthening the ring; 5. a groove is embedded; 6. an elastic ring; 7. an inner ring; 8. a connecting ring; 9. and (4) anti-skid lines.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

The utility model provides a round nut.

In this embodiment, refer to fig. 1 and 2, this round nut, including circular shape nut body 1, be equipped with shaft hole 2 in the nut body 1, the internal thread has in the shaft hole 2, the periphery of nut body 1 is equidistant to be equipped with four draw-in grooves 3, the one end axial extension of the screw in department of nut body 1 has

extension circle

4, 4 inner walls of extension circle on be equipped with embedded

groove

5, 5 imbeds elastic ring 6 in the embedded groove, the up end of elastic ring 6 exceeds the up end of extension circle.

When in use, the utility model discloses use with gasket collocation, when the nut was screwed, the elastic ring received the extrusion of screwing power and radial expansion to increase the frictional force between elastic ring and the axle, played the locking effect of non return. The screwing position of the screw thread refers to the screwing starting end of the nut, namely the end attached to the gasket.

In order to improve the connection stability of the elastic ring, the section of the embedded groove 5 is of an isosceles trapezoid structure; the elastic ring 6 consists of an inner ring 7 and a connecting ring 8 integrally formed on the outer ring of the inner ring, and the section of the connecting ring 8 is of an isosceles trapezoid structure matched with the embedding groove; the elastic ring 6 is made of rubber or nylon.

Specifically, the upper end face of the elastic ring 6 is 0.5-2mm higher than the upper end face of the extension ring. When the connecting shaft is screwed, the elastic ring higher than the end face is extruded, so that radial force tending to the connecting shaft is generated.

The end face of the elastic ring 6 extending out of the extension ring 4 is provided with anti-skid grains 9, and the anti-skid grains 9 are of arc structures. The anti-slip lines increase the friction force of the end face of the elastic ring, play a role in stopping the movement and improve the anti-loosening capability.

The utility model discloses an increase extension circle and elastic ring on the basis of current round nut to with the terminal surface of elastic ring over extension circle setting, thereby in round nut locking, the elastic ring receives the extrusion of screwing power and radial expansion, thereby increases the frictional force between elastic ring and the axle, plays the locking effect of non return, can also play the effect that prevents liquid leakage simultaneously, has simple structure, low cost, the batch production's of being convenient for advantage.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a round nut, includes the circular shape nut body, this internal shaft hole that is equipped with of nut, the internal thread has in the shaft hole, and the periphery of nut body is equidistant is equipped with four draw-in grooves, its characterized in that: the nut is characterized in that an extension ring is axially extended from one end of the screw thread screwing-in position of the nut body, an embedded groove is formed in the inner wall of the extension ring, an elastic ring is embedded in the embedded groove, and the upper end face of the elastic ring is higher than the upper end face of the extension ring.

2. The round nut as claimed in claim 1, wherein: the cross section of embedded groove is isosceles trapezoid structure.

3. The round nut as claimed in claim 2, wherein: the elastic ring is composed of an inner ring and a connecting ring integrally formed on the outer ring of the inner ring, and the section of the connecting ring is of an isosceles trapezoid structure matched with the embedding groove.

4. The round nut as claimed in any one of claims 1 to 3, wherein: the elastic ring is made of rubber or nylon.

5. The round nut as claimed in any one of claims 1 to 3, wherein: the upper end surface of the elastic ring is 0.5-2mm higher than that of the extension ring.

6. The round nut as claimed in any one of claims 1 to 3, wherein: and the end face of the elastic ring extending out of the extension ring is provided with anti-skid grains, and the anti-skid grains are of an arc structure.