CN214063517U

CN214063517U - Anti-theft type lock nut

Info

Publication number: CN214063517U
Application number: CN202022895241.0U
Authority: CN
Inventors: 杨祖成
Original assignee: Quanzhou Shuangyi Machinery Co ltd
Current assignee: Quanzhou Shuangyi Machinery Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-27
Anticipated expiration: 2030-12-03

Abstract

An anti-theft type lock nut structurally comprises a nut body and an anti-theft ring, wherein a plurality of action clamping grooves are formed in the outer wall of the anti-theft ring at intervals, an extending opening is formed in each action clamping groove, the anti-theft ring is rotatably sleeved on the outer ring of the nut body, a limiting chute is formed in the outer ring of the nut body, a limiting ring which is matched with the limiting chute in a sliding mode is arranged on the inner ring of the anti-theft ring, when a worker needs to unscrew the lock nut, the anti-theft ring needs to be rotated, the extending opening in the anti-theft ring is aligned with a telescopic groove, then the anti-theft ring stretches into the telescopic groove through a special tool matched with the lock nut, the end part of the special tool is embedded in a tool groove in the upper end of a linkage rod and rotates, the upper end part of the linkage rod is unscrewed out of the telescopic groove, the spring in a compression state removes elastic force limitation, the upper end part of the linkage rod is driven to stretch into the extending opening, the anti-theft ring and the nut body form limitation, the worker can use the tool to be clamped in the action clamping grooves to rotate, the locking nut is unscrewed.

Description

Anti-theft type lock nut

Technical Field

The utility model relates to an anti-theft type lock nut belongs to the lock nut field.

Background

The existing lock nut installed on a machine is easily unscrewed by outsiders by using a conventional tool, and then the parts of the machine are stolen.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a theftproof formula lock nut to solve current lock nut of installing on machinery, easily by the conventional instrument of layman use back, then steal the problem of getting to the spare part of machinery.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides an anti-theft type lock nut, its structure includes nut body, anti-theft ring outer wall interval is equipped with a plurality of effect draw-in grooves, it stretches into the mouth to be equipped with one on the effect draw-in groove, anti-theft ring rotates and cup joints in nut body outer lane, nut body outer lane is equipped with spacing spout, anti-theft ring inner lane is equipped with the spacing ring that slides and joins in marriage spacing spout, spacing spout bottom is equipped with and stretches into the corresponding flexible groove of mouth, flexible inslot is equipped with the gangbar, the gangbar upper end adopts threaded connection with flexible inslot wall, be equipped with the spring under the gangbar between tip and the flexible tank bottom surface.

Further, the spring is in a compressed state at normal times.

Furthermore, a tool groove is formed in the top end face of the linkage rod.

Furthermore, the diameter of the upper end part of the linkage rod is equal to that of the extending opening.

Furthermore, the extending port penetrates through the limiting ring.

The utility model has the advantages that: when the staff need screw out lock nut, need rotate the anti-theft ring, make the flexible groove of stretching into on the anti-theft ring, then stretch into by stretching into the mouth through the supporting exclusive instrument of lock nut, exclusive instrument tip inlays behind the instrument groove of gangbar upper end, rotate, screw out flexible groove with the gangbar upper end, the spring that is in compression state removes the elasticity restriction, it stretches into in stretching into to drive gangbar upper end, make anti-theft ring and nut body form the restriction, the staff can use the instrument block to rotate in the effect draw-in groove, screw out lock nut.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of an anti-theft lock nut of the present invention;

fig. 2 is a schematic view of a sectional structure of the anti-theft lock nut of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 and 2, the present invention provides a technical solution of an anti-theft lock nut: the structure of the anti-theft nut comprises a nut body 1 and an anti-theft ring 2, wherein a plurality of action clamping grooves 3 are arranged on the outer wall of the anti-theft ring 2 at intervals, the action clamping groove 3 is provided with an extending inlet 4, the anti-theft ring 2 is rotationally sleeved on the outer ring of the nut body 1, the outer ring of the nut body 1 is provided with a limiting chute 5, the inner ring of the anti-theft ring 2 is provided with a limiting ring 6 which is matched with the limiting chute 5 in a sliding way, the bottom of the limiting sliding chute 5 is provided with a telescopic groove 7 corresponding to the extending opening 4, a linkage rod 8 is arranged in the telescopic groove 7, the upper end part of the linkage rod 8 is connected with the inner wall of the telescopic groove 7 by screw threads, a spring 9 is arranged between the lower end part of the linkage rod 8 and the bottom surface of the telescopic groove 7, the spring 9 is in a compressed state in a normal state, the tool groove 10 is formed in the top end face of the linkage rod 8, the diameter of the upper end of the linkage rod 8 is equal to that of the extending opening 4, and the extending opening 4 penetrates through the limiting ring 6.

For example, when the staff need unscrew lock nut, the theftproof ring 2 need be rotated, make the flexible groove 7 of stretching into 4 alignment on the theftproof ring 2, then stretch into by stretching into mouthful 4 through the supporting exclusive instrument of lock nut, exclusive instrument tip inlays behind the instrument groove 10 of gangbar 8 upper end, rotate, unscrew flexible groove 7 with 8 upper ends of gangbar, the elasticity restriction is removed to the spring 9 that is in compression state, it stretches into in stretching into 4 to drive 8 upper ends of gangbar, make theftproof ring 2 and nut body 1 form the restriction, the staff can use the instrument block to rotate in effect draw-in groove 3, unscrew lock nut.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an anti-theft type lock nut which characterized in that: the anti-theft nut comprises a nut body (1) and an anti-theft ring (2), wherein a plurality of action clamping grooves (3) are formed in the outer wall of the anti-theft ring (2) at intervals, an extending opening (4) is formed in the action clamping grooves (3), the anti-theft ring (2) is rotatably sleeved on the outer ring of the nut body (1), a limiting sliding groove (5) is formed in the outer ring of the nut body (1), an inner ring of the anti-theft ring (2) is provided with a limiting ring (6) which is matched with the limiting sliding groove (5) in a sliding mode, a telescopic groove (7) corresponding to the extending opening (4) is formed in the bottom of the limiting sliding groove (5), a linkage rod (8) is arranged in the telescopic groove (7), the upper end portion of the linkage rod (8) is connected with the inner wall of the telescopic groove (7) in a threaded mode, and a spring (9) is arranged between the lower end portion of the linkage rod (8) and the bottom surface of the telescopic groove (7).

2. An anti-theft lock nut according to claim 1, characterized in that: the spring (9) is in a compressed state in a normal state.

3. An anti-theft lock nut according to claim 1, characterized in that: the top end face of the linkage rod (8) is provided with a tool groove (10).

4. An anti-theft lock nut according to claim 1, characterized in that: the diameter of the upper end part of the linkage rod (8) is equal to that of the extending port (4).

5. An anti-theft lock nut according to claim 1, characterized in that: the extending port (4) penetrates through the limiting ring (6).