CN204664117U - A kind of flanged surface nylon nut - Google Patents

Abstract

The utility model discloses a nylon nut with a flange surface, which comprises a nut body, an annular protrusion and a gasket, the upper end of the nut body is provided with an annular protrusion, the gasket is arranged at the lower end of the nut body, the nut body, The ring-shaped protrusion and the gasket are integrally formed. A groove is provided on the inner side of the ring-shaped protrusion, and a nylon washer is embedded in the groove. A first central hole is opened at the center of the nut body and the gasket. The opening of the first central hole is provided with a chamfer, and the inner side of the nylon gasket is provided with a second through hole, and the axes of the first central hole and the second through hole coincide with each other. The utility model has a simple structure and is easy to install. Through the setting of the nylon gasket, the nylon is embedded in the bolt, thereby playing the role of locking. Strong locking ability.

Description

A flanged nylon nut

【Technical field】

The utility model relates to the technical field of fasteners, in particular to the technical field of lock nuts.

【Background technique】

In fastener products, hexagonal nylon nuts are widely used because of their self-locking function and simple structure. The basic structure of the hexagonal nylon nut is: including an outer hexagon and a nylon washer, a threaded hole is provided in the outer hexagon, a thin-walled sleeve structure is provided on the upper end of the outer hexagon, and the nylon washer is inserted into the inner hole of the thin-walled sleeve The upper port of the rear thin-walled sleeve is flanged inwardly to compress the nylon washer on the upper end surface of the outer hexagon, and the inner diameter of the nylon washer is smaller than the inner diameter of the threaded hole. The most prominent problem in the use of the hexagonal nylon nut with the above structure is: when the nut is installed and pulled, the bolt will touch the nylon washer, and the nylon washer is prone to spinning due to insufficient pressing force on the upper end surface of the outer hexagon. , so there is a problem of assembly difficulty. When ordinary nuts and bolts are connected, there is a gap between the gasket and the nut, which is prone to loosening. It is not suitable for vibration occasions. The connection between ordinary nuts and bolts is prone to loosening and loosening when subjected to a certain impact. , Poor self-locking ability.

【Content of utility model】

The purpose of this utility model is to solve the problems in the prior art, and propose a flange surface nylon nut, which is simple in structure, easy to install, anti-loosening, the nut cannot be unscrewed after locking, and has strong self-locking ability.

In order to achieve the above object, the utility model proposes a flanged nylon nut, comprising a nut body, an annular protrusion and a gasket, the upper end of the nut body is provided with an annular protrusion, and the gasket is arranged at the lower end of the nut body, The nut body, the annular protrusion and the gasket are integrally formed, the inner side of the annular protrusion is provided with a groove, the groove is embedded with a nylon washer, and the center of the nut body and the gasket is provided with a second A central hole, the opening of the first central hole is provided with a chamfer, and the inner side of the nylon gasket is provided with a second through hole, and the axes of the first central hole and the second through hole coincide with each other.

Preferably, the inner side of the first central hole is tapped with threads, and the inner diameter of the second through hole is smaller than the inner diameter of the first central hole.

Preferably, the lower surface of the gasket is provided with anti-slip tooth lines, and the anti-slip tooth lines are distributed in a circular array around the first central hole.

Preferably, the structure of the anti-skid ribs is "S" type, and the number of anti-skid ribs is 20-30.

Preferably, rounded corners are provided on the outer edge of the gasket.

Beneficial effects of the utility model: the utility model has a simple structure and is easy to install. Through the setting of the nylon gasket, the nylon is embedded on the bolt, thereby playing the role of locking. It cannot be unscrewed again, so it has a strong locking ability. At the same time, it also adopts the integrated structure of the washer and the nut body, which avoids the gap between the original nut and the washer. The lower surface of the washer is provided with anti-skid The tooth pattern increases the friction between the surface and the base surface, strengthens the anti-loosening ability, and has a certain anti-vibration ability.

The features and advantages of the utility model will be described in detail through embodiments in conjunction with the accompanying drawings.

【Description of drawings】

Fig. 1 is the front structural diagram of a kind of flange surface nylon nut of the present utility model;

Fig. 2 is a top view structural diagram of a flange surface nylon nut of the utility model;

Fig. 3 is a bottom view structure diagram of a nylon nut with a flange surface of the utility model.

In the figure: 1-nut body, 2-annular protrusion, 3-gasket, 4-nylon washer, 5-first center hole, 6-second through hole, 7-rounded corner, 31-anti-slip tooth pattern.

【Detailed ways】

Referring to Fig. 1, Fig. 2, Fig. 3, a kind of flange surface nylon nut of the present utility model comprises nut body 1, annular protrusion 2 and gasket 3, and the upper end of described nut body 1 is provided with annular protrusion 2, and described gasket The sheet 3 is arranged at the lower end of the nut body 1, the nut body 1, the annular protrusion 2 and the gasket 3 are integrally formed, the inner side of the annular protrusion 2 is provided with a groove, and the groove is embedded with a nylon The washer 4 has a first central hole 5 at the center of the nut body 1 and the washer 3, the opening of the first central hole 5 is provided with a chamfer, and the inner side of the nylon washer 4 is provided with a second through hole 6 , the axes of the first central hole 5 and the second through hole 6 coincide with each other, the inner side of the first central hole 5 is threaded, and the inner diameter of the second through hole 6 is smaller than the inner diameter of the first central hole 5 , the lower surface of the gasket 3 is provided with anti-skid tooth lines 31, and the anti-skid tooth lines 31 are distributed in a circular array around the first central hole 5. The structure of the anti-skid tooth lines 31 is "S" type, and the anti-skid tooth lines The number of grooves 31 is 20-30, and the outer edge of the gasket 3 is provided with rounded corners 7 .

The working process of the utility model:

In the working process of the flange surface nylon nut of the utility model, a first center hole 5 is provided at the center of the nut body 1 and the gasket 3, and the inner side of the nylon gasket 4 is provided with a second through hole 6, and the inner side of the first center hole 5 Tapped with threads, the size of the inner diameter of the second through hole 6 is smaller than the size of the inner diameter of the first central hole 5. During the installation process, when the nut is screwed into the bolt, it is screwed into the nylon washer 4. After the locking force is increased, the nylon Embedded on the bolt, the locked nylon washer 4 fills the gap between the bolts at both ends, thereby playing the role of locking. This kind of locking is non-reciprocating, and it cannot be unscrewed again after locking, so it has a relatively strong Strong locking ability. Further, the nylon nut on the flange surface also adopts an integrated structure of the washer, and the nut body 1, the annular protrusion 2 and the gasket 3 are integrally formed, which avoids the gap between the original nut and the gasket, and the gasket The lower surface of 3 is provided with anti-slip tooth pattern 31, the "S" type tooth pattern has stronger resistance, increases the friction force between the base surface and the anti-loosening ability, and has a certain anti-vibration ability at the same time .

The above-mentioned embodiment is an illustration of the utility model, not a limitation of the utility model, and any scheme after a simple transformation of the utility model belongs to the protection scope of the utility model.

Claims (5)

1. a flange surface nylon nut is characterized in that: comprise nut body (1), annular protrusion (2) and gasket (3), described nut body (1) upper end is provided with annular protrusion (2), The gasket (3) is arranged at the lower end of the nut body (1), the nut body (1), the annular protrusion (2) and the gasket (3) are integrally formed, and the annular protrusion (2) A groove is provided on the inner side, and a nylon washer (4) is embedded in the groove, and a first center hole (5) is opened at the center of the nut body (1) and the washer (3), and the first center The opening of the hole (5) is provided with a chamfer, and the inner side of the nylon gasket (4) is provided with a second through hole (6), and the axes of the first center hole (5) and the second through hole (6) are mutually coincide. 2. A flanged nylon nut according to claim 1, characterized in that: the inside of the first central hole (5) is tapped with threads, and the inner diameter of the second through hole (6) is smaller than that of the first through hole (6). The size of the inner diameter of the central hole (5). 3. A flanged nylon nut according to claim 1, characterized in that: the lower surface of the gasket (3) is provided with anti-slip teeth (31), and the anti-skid teeth (31) surround The first central holes (5) are distributed in an annular array. 4. A nylon nut with a flange surface as claimed in claim 3, characterized in that: the structure of the anti-skid tooth (31) is "S" type, and the number of anti-skid tooth (31) is 20-30 . 5. A flanged nylon nut according to claim 1, characterized in that: the outer edge of the gasket (3) is provided with rounded corners (7).