CN216867257U

CN216867257U - Combined locknut

Info

Publication number: CN216867257U
Application number: CN202220473867.9U
Authority: CN
Inventors: 陈少华
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-07-01
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses a combined type locknut which comprises a nut and a gasket, wherein the nut comprises a nut body, one side of the nut body is provided with a boss, wire grooves are uniformly distributed on the boss along the circumferential direction, and the boss can be divided into a plurality of locking teeth through the wire grooves; the circular groove of the gasket is provided with a shoulder matched with the locking teeth, and the locking teeth are extruded through the shoulder, so that the locking teeth can be tightened along the axis of the locking teeth. The nut and bolt fastening device is simple in structure and convenient to install, the shoulder of the gasket is used for extruding the locking teeth of the nut, the locking teeth are forced to displace along the radial direction of the bolt, the internal threads of the locking teeth are meshed with the external threads of the bolt in a gapless manner for locking, the friction force between the nut and the bolt is increased while the nut and the bolt are connected, the nut is effectively prevented from loosening due to vibration, and good fastening and anti-loosening effects are achieved.

Description

Combined anti-loose nut

Technical Field

The utility model relates to the technical field of nut fasteners, in particular to a combined type locknut.

Background

Fasteners are a type of mechanical parts used for fastening connections and in a wide range of applications, and various mechanical parts cannot be separated from each other in connection assembly. Most of the existing fasteners are in a common bolt and nut connection and fastening mode, namely a common bolt pair. Although the fastener brings convenience to the mechanical industry, the fastener has an inevitable weakness that the nut is easy to loosen under the action of factors such as vibration and the like after the bolt and the nut are mutually locked, so that connection failure is caused, and parts or equipment are damaged in operation and even serious safety accidents are caused.

In order to prevent the nut from loosening, people take many measures, such as adding an elastic retaining pad, installing a retaining pin, gluing on threads and the like, and the measures are not convenient to operate or poor in loosening prevention effect. Therefore, in the field of fasteners, especially locknuts, a locknut with a simple structure, convenient installation and good locking effect is urgently needed.

Disclosure of Invention

The utility model provides a combined type locknut which is simple in structure, convenient to install and good in locking effect, and the specific technical scheme is as follows:

a combined type anti-loose nut comprises a nut and a gasket and is characterized in that the nut comprises a nut body, a boss is arranged on one side of the nut body, wire grooves are uniformly distributed on the boss along the circumferential direction, and the boss can be divided into a plurality of locking teeth through the wire grooves; the circular groove of the gasket is provided with a shoulder matched with the locking teeth, and the locking teeth are extruded through the shoulder, so that the locking teeth can be tightened along the axis of the locking teeth.

The lug boss is in an inverted cone shape.

The inner diameter of the boss is the same as that of the nut body, and the boss and the nut are integrally provided with internal threads.

The boss and the nut body are of an integrated structure.

The depth of the wire groove is the same as the height of the boss.

The number of the locking teeth is 4 or 6.

The locking teeth have a smooth outer surface.

The height of the ring groove is slightly larger than that of the lug boss.

The nut locking device is simple in structure and convenient to install, the shoulder of the gasket extrudes the locking teeth of the nut, the locking teeth are forced to displace along the radial direction of the bolt, the internal threads of the locking teeth and the external threads of the bolt are meshed and locked without gaps, the friction force between the nut and the bolt is increased while the nut and the bolt are connected, the nut is effectively prevented from loosening due to vibration, and good fastening and anti-loosening effects are achieved.

Drawings

FIG. 1 is a schematic representation of the nut of the present invention prior to tightening;

FIG. 2 is a schematic view of the nut of the present invention after tightening;

FIG. 3 is a schematic view of a gasket of the present invention;

FIG. 4 is an enlarged schematic view of section A of FIG. 3;

FIG. 5 is a schematic view of the nut of the present invention;

fig. 6 is a bottom view of fig. 5.

In the figure: the bolt comprises a bolt 1, a nut 2, a gasket 3, a double-layer plate 4, a boss 21, a nut body 22, a locking tooth 23, a wire groove 24, a shoulder 31 and a ring groove 32.

Detailed Description

The preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are included to provide further understanding, and are not intended to limit the scope of the utility model.

As shown in fig. 1 and 2, the combined locknut of the present invention includes a nut 2 and a washer 3, and the combined locknut is used in conjunction with a bolt 1 to fix an object to be fixed, and the present invention is illustrated by the bolt 1, but may be a screw or other similar parts.

As shown in fig. 5 and 6, the nut 2 includes a nut body 22, and a boss 21 is provided on one side of the nut body 22, and the boss 21 and the nut body 22 are of an integral structure. The boss 21 be the back taper, the internal diameter of boss 21 is the same with the internal diameter of nut body 22, and boss 21 and nut are whole to be provided with the internal thread.

Furthermore, the inverted cone-shaped bosses 21 are uniformly provided with the wire grooves 24 along the circumferential direction, the depth of the wire grooves 24 is the same as the height of the inverted cone-shaped bosses 21, the inverted cone-shaped bosses 21 can be divided into a plurality of locking teeth 23 through the wire grooves 24, and the locking teeth 23 have smooth outer surfaces. The number of locking teeth 23 is preferably 4 or 6. It should be noted that the number of the locking teeth 23 is plural, and other numbers of the locking teeth 23 may be provided according to the specification of the nut 2, and the number is not limited in the present invention.

As shown in fig. 3 and 4, a shoulder 31 engaged with the locking teeth 23 is provided on the ring groove 32 of the washer 3, and the locking teeth 23 are pressed by the shoulder 31, so that the nut 2 and the bolt 1 are connected, friction between the nut 2 and the bolt 1 is increased, and the locking effect is further improved. The height of the ring groove 32 is slightly greater than the height of the boss 21.

As shown in fig. 1 and 2, in the application method of the combined type locknut, the combined type locknut of the embodiment is used for fixing an object to be fixed by matching with a bolt 1, the object to be fixed is a double-layer plate 4, when in use, the bolt 1 penetrates through a through hole on the double-layer plate 4, then a gasket 3 is installed on the bolt 1, the gasket 3 is positioned above the double-layer plate 4, then the nut 2 is screwed on the bolt 1, in the screwing process of the nut 2, a shoulder 31 of the gasket 3 extrudes a tapered locking tooth 23, so that the locking tooth 23 is tightened along the axis of the locking tooth after being pressed, when the shoulder 31 of the gasket 3 extrudes the locking tooth 23, the shoulder 31 deforms (as shown in fig. 2), and further, the locking tooth 23 tightly presses against the bolt 1. According to the utility model, the shoulder 31 of the gasket 3 extrudes the locking teeth 23 to clamp the bolt 1, so that the nut 2 can be well fixed, and the function of preventing loosening is achieved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A combined type anti-loose nut comprises a nut (2) and a gasket (3), and is characterized in that the nut (2) comprises a nut body (22), a boss (21) is arranged on one side of the nut body (22), wire grooves (24) are uniformly distributed on the boss (21) along the circumferential direction, and the boss (21) can be divided into a plurality of locking teeth (23) through the wire grooves (24); a shoulder (31) matched with the locking teeth (23) is arranged on the annular groove (32) of the gasket (3), and the locking teeth (23) are extruded through the shoulder (31) so that the locking teeth (23) can be tightened along the axis of the locking teeth.

2. The combined locknut of claim 1, wherein the boss (21) is of an inverted cone shape.

3. The combined locknut of claim 2, characterized in that the boss (21) has the same inner diameter as the nut body (22), and the boss (21) and the nut are integrally provided with an internal thread.

4. The combined locknut according to any one of claims 1-3, characterized in that the boss (21) and the nut body (22) are of an integral structure.

5. The combined locknut of claim 1, wherein the depth of the wire groove (24) is the same as the height of the boss (21).

6. The combined locknut of claim 1, characterized in that the number of locking teeth (23) is 4 or 6.

7. The combined locknut of claim 6, characterized in that the locking teeth (23) have a smooth outer surface.

8. The composite type locknut of claim 1, wherein the height of the ring groove (32) is slightly larger than the height of the boss (21).