CN208749788U

CN208749788U - A kind of nut with locking functions

Info

Publication number: CN208749788U
Application number: CN201820820121.4U
Authority: CN
Inventors: 王平安
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-30
Filing date: 2018-05-30
Publication date: 2019-04-16
Anticipated expiration: 2028-05-30

Abstract

The utility model discloses a kind of nuts with locking functions, including nut, check pin, spring and washer lock, several antiratchetting grooves being spaced apart are offered in described nut one end, the cross section of the antiratchetting groove is arc-shaped and the arc diameter of the antiratchetting groove is gradually increased from one end toward the other end, described relatively large one end of antiratchetting groove arc diameter is first end, the relatively small one end of arc diameter is second end, the washer lock is installed on the end of the nut, it is locked in the washer and is provided with the card that first end protrudes into the antiratchetting groove, the check pin and the spring are installed in the antiratchetting groove and the check pin is defined between the card and the spring, its may make between bolt couple it is even closer, it will not loosen.

Description

A kind of nut with locking functions

Technical field

The utility model relates to nut technical field more particularly to a kind of nuts with locking functions.

Background technique

In actual operation, more than two engaging portions are fixed in Chang Liyong screw bolt and nut, however when external load has When vibration, variation, material at high temperature creep, it will cause frictional force between thread connection and reduce, normal pressure exists in thread connection A certain pop-off, frictional force 0, so that thread connection be made to loosen, if by repeated action, thread connection will relax and Failure.Therefore, it is necessary to carry out locking, it otherwise will affect normal work, cause the accident.

Utility model content

The main purpose of the utility model is to overcome the deficiency of above-mentioned background technique, provide a kind of with locking functions Nut may make and couple even closer between bolt, will not loosen.

Above-mentioned purpose is achieved by the following technical solution:

A kind of nut with locking functions, including nut, check pin, spring and washer lock, are opened in described nut one end Equipped with several antiratchetting grooves being spaced apart, the cross section of the antiratchetting groove is arc-shaped and the arc diameter of the antiratchetting groove from one end toward The other end gradually increases, and described relatively large one end of antiratchetting groove arc diameter is first end, and the relatively small one end of arc diameter is second End, washer lock are installed on the end of the nut, lock in the washer and are provided with the first end in the antiratchetting groove and stretch The card entered, the check pin and the spring are installed in the antiratchetting groove and the check pin is defined to the card Between the spring.

In some embodiments, the check pin is cylindrical, the first cambered surface is formed in described card one end, described Spring one end forms the second cambered surface, first cambered surface and second cambered surface contacted respectively with the surface of the check pin and incite somebody to action The check pin limits.

In some embodiments, the end of the nut is provided with retainer ring, is locked the washer by the retainer ring It is fixed.

In some embodiments, the antiratchetting groove is including 3 and circumferentially spaced uniformly distributed.

In some embodiments, washer lock in a ring, is locked in the washer and offers several be spaced apart Through-hole offers several jacks with through-hole cooperation on the nut.

The utility model compared with prior art, at least has the effect that

A kind of nut with locking functions of the utility model, structure is simple, compact, by the check pin of setting, Spring and washer lock can to couple even closer between nut and bolt, will not loosen, and then avoid the generation of accident.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram of nut in embodiment；

Fig. 2 is the stereoscopic schematic diagram of check pin in embodiment；

Fig. 3 is the stereoscopic schematic diagram of spring in embodiment；

Fig. 4 is the stereoscopic schematic diagram of embodiment middle washer lock.

Specific embodiment

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.

Embodiment one: it is as shown in Figure 1, Figure 2, Figure 3 and Figure 4, the present embodiment provides a kind of nut with locking functions, Including nut 1, check pin 2, spring 3 and washer lock 4, several antiratchetting grooves 10 being spaced apart are offered in described 1 one end of nut, The cross section of the antiratchetting groove 10 is arc-shaped and the arc diameter of the antiratchetting groove 10 is gradually increased from one end toward the other end, described anti- Loose 10 relatively large one end of arc diameter of slot is first end 101, and the relatively small one end of arc diameter is second end 102, the washer lock 4 It is installed on the end of the nut 1, is provided with the card that first end 101 protrudes into the antiratchetting groove 10 on washer lock 4 Piece 41, the check pin 2 and the spring 3 are installed in the antiratchetting groove 10 and the check pin 2 is defined to the card Between piece 41 and the spring 3.

A kind of nut with locking functions of the present embodiment, structure is simple, compact, passes through the check pin of setting, bullet Spring and washer lock can to couple even closer between nut and bolt, will not loosen, and then avoid the generation of accident.

Further, the check pin 2 is cylindrical, the first cambered surface 410 is formed in described 41 one end of card, in the bullet 3 one end of spring forms the second cambered surface 300, first cambered surface 401 and second cambered surface 300 table with the check pin 2 respectively Face contact simultaneously limits the check pin 2, design it is simple, ingenious, enable card 41 and spring 3 preferably with check pin 2 It contacts and is limited.

Preferably, the end of the nut 1 is provided with retainer ring, it is by the retainer ring that washer lock 4 is fixed, it ties Structure is simple, can be convenient, effectively fixed by washer lock 4, and washer lock 4 is avoided to fall off from nut 1 in use.

Particularly, the antiratchetting groove 10 is including 3 and circumferentially spaced uniformly distributed, and design is simple, can be to bolt in circumferential direction It is upper effectively to be limited, avoid it from falling off from nut 1.

Further, the washer lock 4 in a ring, offers several through-holes 42 being spaced apart on washer lock 4, Several jacks 103 with the through-hole 42 cooperation are offered on the nut 1, can be incited somebody to action by the through-hole 42 and jack 103 of cooperation Nut 1 and the bolt being locked together separate, with this convenient for reuse.

Below with regard to provided by the present embodiment there is its locking principle of the nut of locking functions to be explained as follows:

When tightening nut 1 and bolt, check pin 2 contacts bolt, the tightening direction of bolt and the second of antiratchetting groove 10 End 102 is identical toward 101 direction of first end, at this point, check pin 2 is to loosen；If existing at this time anti-when needing to unclamp nut 1 Xiang Li, the elastic force due to check pin 2 by spring 3, there are frictional force between bolt and check pin 2, and check pin 2 is by antiratchetting groove 10 The first end 101 to antiratchetting groove 6 it is mobile toward 102 direction of second end, this moment, the rotation of check pin 2 and nut 1 is (in other words It is mobile) direction be it is opposite, bolts and nuts 1 will clamp check pin 2, and then achieve the effect that locking self-locking.

When needing to unclamp nut 1, screwing force is applied toward nut 2 by unlocking spanner, convenient for rotatable washer lock 4, with opening The through-hole 42 for locking spanner alignment washer lock 4 rotates counterclockwise is inserted into the jack 103 of nut 1, and nut 1 can rotate counterclockwise And it is unclamped with bolt.

Above-described is only some embodiments of the utility model.For those of ordinary skill in the art, Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to practical Novel protection scope.

Claims

1. a kind of nut with locking functions, which is characterized in that locked including nut, check pin, spring and washer, in the spiral shell Female one end offers several antiratchetting grooves being spaced apart, and the cross section of the antiratchetting groove is arc-shaped and the arc diameter of the antiratchetting groove It is gradually increased from one end toward the other end, the relatively large one end of the antiratchetting groove arc diameter is first end, and the relatively small one end of arc diameter is Second end, the washer lock are installed on the end of the nut, lock and be provided with first in the antiratchetting groove in the washer Hold the card that protrudes into, the check pin and the spring are installed in the antiratchetting groove and the check pin be defined to it is described Between card and the spring.

2. a kind of nut with locking functions according to claim 1, which is characterized in that the check pin is in cylinder Shape forms the first cambered surface in described card one end, forms the second cambered surface, first cambered surface and described the in the spring one end Two cambered surfaces contact with the surface of the check pin respectively and limit the check pin.

3. a kind of nut with locking functions according to claim 1, which is characterized in that set in the end of the nut It is equipped with retainer ring, the washer is locked by the retainer ring and is fixed.

4. a kind of nut with locking functions according to claim 1,2 or 3, which is characterized in that the antiratchetting groove packet Include 3 and circumferentially spaced uniformly distributed.

5. a kind of nut with locking functions according to claim 1,2 or 3, which is characterized in that the washer, which is locked, is in Annular is locked in the washer and offers several through-holes being spaced apart, and several and through-hole is offered on the nut The jack of cooperation.