CN201535307U - Insert anti-loose theftproof nut - Google Patents

Abstract

The utility model discloses an insert anti-loose theftproof nut, relates to the field of metal component processing and manufacturing, and aims to solve the problem that the conventional fastening pieces such as a bolt and a nut are easy to be disassembled and can not satisfy theftproof requirement of special outdoor equipment. The insert anti-loose theftproof nut comprises a insert anti-loose nut 1, a overriding structure, a insert 3 and a auxiliary component 4, wherein the insert 3 and the auxiliary component 4 are arranged on the top of the insert anti-loose nut1, the overriding structure is embedded in the inner wall of the insert anti-loose nut 1 and is arranged under the insert 3, the inner diameter of the overriding structure is same as that of the anti-loose nut 1, the overriding structure comprises a plurality of overriding rolling ball inclined benches 5 and a plurality of steel balls 2 arranged on the inclined benches 5, the cylinder-shaped auxiliary component 4 with a chassis is embedded from the top of the insert anti-loose nut 1, the chassis is larger than the inner diameter of the nut 1, the external diameter of the central cylinder is slightly smaller than or equal to the inner diameter of the nut 1, and the height of the central cylinder is not less than the distance between the upper end surface of the nut 1 and the lower edge of the overriding structure. The utility model is suitable for various field electric power equipment and mechanical equipment using nut to fix and mount.

Description

The inserts anti-loose anti-theft nut

Technical field

The utility model relates to metal parts manufacturing field, particularly a kind of inserts anti-theft nut.

Background technique

Open-air at present all kinds of power equipments, all to use a large amount of fastening pieces in the fixing and installation of machinery, as bolt and nut etc., but because the said equipment is in the unmanned state in using, present stolen phenomenon happens occasionally, and implement theft again behind the fastening pieces such as this type of stolen incident to be stealer substantially take off earlier bolt and nut, because fastening pieces such as conventional bolt nut are very easily dismantled, the generation of at all can't prevention equipment stealing behavior, for avoiding equipment stolen, need expend great amount of manpower and carry out on duty or select using expensive anti-theft measures such as electronic monitoring, cause a large amount of wastings of resources.

Summary of the invention

The utility model is intended to solve fastening piece such as conventional bolt nut and very easily dismantles, can not satisfy technical problems such as the antitheft requirement of special outdoor equipment, anti-ly discharge to provide a kind of, antitheft, can singlehandedly install, have the inserts anti-loose anti-theft nut that only advances not move back characteristics.

The purpose of this utility model is achieved through the following technical solutions.

Inserts anti-loose anti-theft nut of the present utility model, constitute by inserts lock nut 1, override type structure, the inserts 3 that is positioned at inserts lock nut 1 top and auxiliary 4, the override type structure is embedded in the inwall of inserts lock nut 1, and be positioned at inserts 3 belows, its internal diameter is identical with inserts lock nut 1 internal diameter, and the override type structure is made up of several override type ball sloping platforms 5 and several the steel balls of being located on the override type ball sloping platform 52; The cylindric auxiliary 4 on band chassis is embedded by the top of inserts lock nut 1, its chassis is greater than inserts lock nut 1 internal diameter, the external diameter of centered cylinder is slightly less than or equals inserts lock nut 1 internal diameter, it highly is not more than the spacing of inserts lock nut 1 upper and lower end face, and is not less than the spacing of inserts lock nut 1 upper-end surface to override type structure bottom.

Inserts anti-loose anti-theft nut of the present utility model, wherein said override type ball sloping platform 5 is 2, steel ball 2 is two.

The beneficial effect of the utility model inserts anti-loose anti-theft nut:

1. anti-discharge, antitheft;

2. can singlehandedly install;

3. have and only advance not move back characteristics.

Description of drawings

Fig. 1 is vertical cut-away view of the present utility model

Fig. 2 is that A-A of the present utility model illustrates to the cut-away view number in the figure: 1 inserts lock nut, 2 steel balls, 3 inserts, 4 auxiliaries, 5 override type ball sloping platforms, 6 steel ball initial positions, 7 steel ball lock positions

Embodiment

The utility model detailed structure, application principle, effect and effect with reference to accompanying drawing 1-2, are illustrated by following mode of execution.

Consult shown in Fig. 1-2, inserts anti-loose anti-theft nut of the present utility model, constitute by inserts lock nut 1, the override type structure of commercially available standard piece, the inserts 3 that is positioned at inserts lock nut 1 top and auxiliary 4, the override type structure is embedded in the inwall of inserts lock nut 1, and be positioned at inserts 3 belows, its internal diameter is identical with inserts lock nut 1 internal diameter, and the override type structure is made up of 2 override type ball sloping platforms 5 and 2 steel balls 2 being located on the override type ball sloping platform 5; The cylindric auxiliary 4 on band chassis is embedded by the top of inserts lock nut 1, its chassis is greater than inserts lock nut 1 internal diameter, the external diameter of centered cylinder is slightly less than or equals inserts lock nut 1 internal diameter, it highly is not more than the spacing of inserts lock nut 1 upper and lower end face, and is not less than the spacing of inserts lock nut 1 upper-end surface to override type structure bottom.

During use bolt is screwed in gradually by inserts lock nut 1 lower end surface, bolt is the centered cylinder lower surface of the cylindric auxiliary 4 of contact earlier, and both collaborative continuation move in the precession afterwards, at last auxiliary 4 are ejected inserts lock nut 1, finish locking.

As desire inserts lock nut 1 is carried out counterrotating, promptly desire to unclamp this inserts of dismounting anti-loose anti-theft nut, when counterrotating inserts lock nut 1, the steel ball 2 of override type structure is under the drive of swivel bolt, moved to steel ball lock position 7 gradually by steel ball initial position 6, because override type ball sloping platform 5 is the big and little shape of locking end of initial end, steel ball 2 is on the throne to be moved past in the journey and bolt generation rigidity friction extruding, stop the bolt counterrotating, prevent the dismounting of bolt with this.

Therefore, adopt the utility model insert anti-loose theftproof nut, have the advantages that only advance not move back, can prevent discharging, antitheft, and can singlehandedly install, can be widely used in using bolt and nut to be fixed and open-air all kinds of power equipments, the plant equipment of installing.

Claims (2)

1. inserts anti-loose anti-theft nut, it is characterized in that: constitute by inserts lock nut (1), override type structure, the inserts (3) that is positioned at inserts lock nut (1) top and auxiliary (4), the override type structure is embedded in the inwall of inserts lock nut (1), and be positioned at below the inserts (3), its internal diameter is identical with inserts lock nut (1) internal diameter, and the override type structure is made up of several override type ball sloping platforms (5) and several the steel balls (2) be located on the override type ball sloping platform (5); The cylindric auxiliary (4) on band chassis is embedded by the top of inserts lock nut (1), its chassis is greater than inserts lock nut (1) internal diameter, the external diameter of centered cylinder is slightly less than or equals inserts lock nut (1) internal diameter, it highly is not more than the spacing of inserts lock nut (1) upper and lower end face, and is not less than the spacing of inserts lock nut (1) upper-end surface to override type structure bottom.

2. inserts anti-loose anti-theft nut as claimed in claim 1 is characterized in that: described override type ball sloping platform (5) is 2, and steel ball (2) is two.

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