CN201513452U

CN201513452U - Steel wire ring-wedged anti-theft nut

Info

Publication number: CN201513452U
Application number: CN2009202424084U
Authority: CN
Inventors: 曾顺章; 詹辉余; 曾云
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-29
Filing date: 2009-09-29
Publication date: 2010-06-23
Anticipated expiration: 2019-09-29

Abstract

The utility model provides a steel wire ring-wedged anti-theft nut which relates to the field of metal part processing and aims to solves the problem that the prior fastener (such as bolt or nut) is extremely easy to disassemble and doesn't meet the special requirement for theft protection of the outdoor equipment. The steel wire ring-wedged anti-theft nut comprises a round nut (1), a casing (2), a steel wire ring (3) and an auxiliary part (4), wherein a ring-shaped recess (7) is arranged at the middle part of the outer wall of the round nut (1), chamfers (8) are arranged on the inner side of the upper and the lower end surfaces of the round nut, the casing (2) is circular ring-shaped, the circular upper edge of the casing is partially folded inwards at a right angle and the folded part is embedded inside the ring-shaped recess (7) of the round nut (1), the circular lower edge of the casing is partially folded inwards at a right angle and the top end of the folded part is folded upwards at an acute angle, internal threads are arranged on the outer surface of the acute-angle folded part, the steel wire ring (3) is arranged between the top of the acute-angle folded part and the chamfer (8) on the inner side of the lower end surface of the round nut (1), and the cylindrical auxiliary part (4) with chassis is embedded into the bottom of the round nut (1). The steel wire ring-wedged anti-theft nut is applied to various power equipment and mechanical equipment which are fixed and installed outdoor with the use of bolts and nuts.

Description

Steel wire ring wedging anti-theft nut

Technical field

The utility model relates to metal parts manufacturing field, particularly a kind of 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 steel wire ring wedging anti-theft nut that only advances not move back characteristics.

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

Steel wire ring wedging anti-theft nut of the present utility model, by round nut 1, shell 2, steel wire ring 3 and auxiliary 4 constitute, the periphery middle part of round nut 1 is provided with annular grooving 7, its inboard, upper and lower end face is provided with chamfering 8, shell 2 is circular, its internal diameter equates with the external diameter of round nut 1, the turnover of inside part right angle, its ring-type top, turnover is partially submerged in the annular grooving 7 of round nut 1, its length is identical with the degree of depth of annular grooving 7, the following inwardly part right angle turnover of its ring-type, the acute angle turnover is upwards done on the top of this turnover part again, the outer surface of acute angle turnover is provided with internal thread, and the perpendicular distance of ring-shaped shell two right angles turnover 2 about is slightly larger than or equals the following perpendicular distance between round nut 1 bottom surface and the steel wire diameter sum of steel wire ring 3 of arriving of annular grooving 7; Steel wire ring 3 is located between the chamfering 8 of the top of aforementioned acute angle turnover and inboard, round nut 1 lower end surface; The cylindric auxiliary 4 on band chassis is embedded by the bottom surface of round nut 1, and its chassis is greater than round nut 1 internal diameter, and the external diameter of centered cylinder is slightly less than or equals round nut 1 internal diameter, its height between the inboard chamfering lower edge in round nut 1 upper-end surface between ring-shaped shell 2 lower end surfaces.

Steel wire ring wedging anti-theft nut of the present utility model, wherein said acute angle turnover angle is identical with round nut 1 inboard chamfering 8 angles.

Steel wire ring wedging anti-theft nut of the present utility model, the coiling pitch of wherein said steel wire ring 3 is with to use the pitch that matches identical.

The beneficial effect of the utility model steel wire ring wedging 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 plan view

Fig. 2 steel wire ring wedge advances schematic representation

Number in the figure explanation: 1 round nut, 2 shells, 3 steel wire rings, 4 auxiliaries, 5 steel wire ring initial positions, 6 steel wire ring movement positions, 7 annular groovings, 8 chamferings, 9 internal threads

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, steel wire ring wedging anti-theft nut of the present utility model, by round nut 1, shell 2, steel wire ring 3 and auxiliary 4 constitute, the periphery middle part of round nut 1 is provided with annular grooving 7, its inboard, upper and lower end face is provided with chamfering 8, shell 2 is circular, its internal diameter equates with the external diameter of round nut 1, the turnover of inside part right angle, its ring-type top, turnover is partially submerged in the annular grooving 7 of round nut 1, its length is identical with the degree of depth of annular grooving 7, the following inwardly part right angle turnover of its ring-type, the acute angle turnover is upwards done on the top of this turnover part again, acute angle turnover angle is identical with round nut 1 inboard chamfering 8 angles, the outer surface of acute angle turnover is provided with internal thread, and the perpendicular distance of ring-shaped shell two right angles turnover 2 about is slightly larger than or equals the following perpendicular distance between round nut 1 bottom surface and the steel wire diameter sum of steel wire ring 3 of arriving of annular grooving 7;

Steel wire ring 3 is located between the chamfering 8 of the top of aforementioned acute angle turnover and inboard, round nut 1 lower end surface, and the coiling pitch of steel wire ring 3 is with to use the pitch that matches identical;

The cylindric auxiliary 4 on band chassis is embedded by the bottom surface of round nut 1, and its chassis is greater than round nut 1 internal diameter, and the external diameter of centered cylinder is slightly less than or equals round nut 1 internal diameter, its height between the inboard chamfering lower edge in round nut 1 upper-end surface between ring-shaped shell 2 lower end surfaces.

During use bolt is screwed in gradually by round nut 1 upper-end surface, bolt is the centered cylinder upper surface of the cylindric auxiliary 4 of contact earlier, both collaborative continuation precessions afterwards move down, when bolt with after steel wire ring 3 internal surfaces contact, because the coiling pitch of steel wire ring 3 is identical with the pitch of using the bolt that matches, bolt screws in and also to continue descendingly by steel wire ring 3 backs, matches with internal thread on the outer surface of shell 2 following acute angles turnovers and continues descendingly, at last auxiliary 4 is ejected nut.

Afterwards, continue the turn bolt, under the drive of bolt, shell 2 moves up and promotes steel wire ring 3 and moves on gradually, after the outer side contacts of the following inboard of shell 2 annular and round nut 1 bottom, continuation turn bolt, then steel wire ring 3 turn that will make progress along with the downward turn of bolt, in the internal thread of wedging round nut 1, until finishing locking.

As reverse turn bolt, because steel wire ring 3 has been wedged in the internal thread of round nut 1, steel wire ring 3 will stop the reverse turn of bolt, thereby stop demounting bolt.

Therefore, adopt the utility model steel wire ring wedging anti-theft 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 fix open-air all kinds of power equipments, machinery with installation.

Claims

1. steel wire ring wedging anti-theft nut, it is characterized in that: by round nut (1), shell (2), steel wire ring (3) and auxiliary (4) constitute, the periphery middle part of round nut (1) is provided with annular grooving (7), its inboard, upper and lower end face is provided with chamfering (8), shell (2) is circular, its internal diameter equates with the external diameter of round nut (1), the turnover of inside part right angle, its ring-type top, turnover is partially submerged in the annular grooving (7) of round nut (1), its length is identical with the degree of depth of annular grooving (7), the following inwardly part right angle turnover of its ring-type, the acute angle turnover is upwards done on the top of this turnover part again, the outer surface of acute angle turnover is provided with internal thread, and ring-shaped shell (2) perpendicular distance of two right angles turnover up and down is slightly larger than or equals annular grooving (7) bottom to the perpendicular distance between round nut (1) bottom surface and the steel wire diameter sum of steel wire ring (3); Steel wire ring (3) is located between the chamfering (8) of the top of aforementioned acute angle turnover and round nut (1) inboard, lower end surface; The cylindric auxiliary (4) on band chassis is embedded by the bottom surface of round nut (1), its chassis is greater than round nut (1) internal diameter, the external diameter of centered cylinder is slightly less than or equals round nut (1) internal diameter, its height between the inboard chamfering lower edge in round nut (1) upper-end surface between ring-shaped shell (2) lower end surface.

2. steel wire ring wedging anti-theft nut as claimed in claim 1 is characterized in that: described acute angle turnover angle is identical with the inboard chamfering of round nut (1) (8) angle.

3. steel wire ring wedging anti-theft nut as claimed in claim 1 is characterized in that: the coiling pitch of described steel wire ring (3) is with to use the pitch that matches identical.