CN2861593Y

CN2861593Y - Easy-to-mount drawing prevention anti-theft nut

Info

Publication number: CN2861593Y
Application number: CN 200520120377
Authority: CN
Inventors: 王益前
Original assignee: FOSHAN ZISHENG DIANLI ACCESSORIES MANUFACTURING Co Ltd
Current assignee: FOSHAN ZISHENG DIANLI ACCESSORIES MANUFACTURING Co Ltd
Priority date: 2005-12-13
Filing date: 2005-12-13
Publication date: 2007-01-24
Anticipated expiration: 2015-12-13

Abstract

The utility model discloses a thievery prevention nut with rational structure, simple installation and greatly improved tensile property, which comprises a nut body and an anti-quitting part, a half wedge type slot is arranged on internal wall of nut, the half wedge type slot is stretched along the direction of bolts screwing in, the anti-quitting part is arranged in the half wedge type slot, the ring tensile part is fixed on integrated top of the screwed out end of the bolt from the nut body, the inside diameter of ring tensile part is as same as that of the nut body and the screw thread on internal wall is conformable to direction and pitch of thread in nut body; the assembling plug is arranged in the center hole of the nut. Because the ring tensile part is fixed on integrated top of screwed out end of bolt from nut body, tensile property of nut is greatly reinforced, and step of setting locking ring in slot can be omitted when assembly, furthermore, the existence of tensile part let users identify the screw in and screw out the nut conveniently and the assembly efficiency is improved.

Description

A kind of tension anti-theft nut of being convenient to install

Technical field:

The utility model relates to construction and uses technical field of fastening, refers in particular to a kind of tension anti-theft nut of being convenient to install.

Background technique:

The common structure of the anti-theft nut that engineering is used in the prior art is for including nut body, the retaining pin, the retaining pin is located in the wedge type groove of inwall of nut body, on the bolt back-out end inner hole wall of nut body, be provided with the ring-like deep trouth of a circle, be embedded the anti-DNA releaxed circular DNA of a nylon that cooperates with the wedge type groove in this annular deep trouth, the anti-DNA releaxed circular DNA of this nylon can prevent that pin from dropping out and cause nut anti-loose with cooperating of bolt, though this kind structure has played anti-loosing effect effectively, but this kind structure of anti-DNA releaxed circular DNA of nylon and nut, in practice of construction, installation steps are more, the most important shortcoming of this structure is that tensility is relatively poor, often can not play effective anti-theft feature.

Summary of the invention:

The purpose of this utility model is to overcome the deficiencies in the prior art part, provide a kind of rational in infrastructure, anti-theft nut simple, that tensility greatly improves is installed.

For achieving the above object, the technological scheme that the utility model provides is: include nut body, retaining spare, be provided with half wedge type slot in the inwall of nut body, half wedge type slot along the bolt screw-in direction from shallow to deep, retaining spare places in this half wedge type slot; The bolt of nut body screws out that the Ben Bi top of end is one-body molded a ring-like tensile members, and the internal diameter of this annular tensile members is identical with the internal diameter size of nut body, and forms thread pitch and the consistent screw thread of direction with nut body on the inwall; Be movably set with installing stopper in female center hole.

After the utility model adopts technique scheme, ring-like tensile members is arranged owing to the Ben Bi top of holding in the bolt back-out of nut body is one-body molded, this tensile members has replaced the anti-DNA releaxed circular DNA of prior art, strengthened the tensility of nut greatly, also saved the step that in the annular deep trouth of circle, embeds locking ring during installation, and the existence of tensile members, make the user be convenient to discern the screw terminal of nut and screw out end, thereby improved installation efficiency.

Description of drawings:

Accompanying drawing 1 does not vertically partly cut open structural representation during the shape retaining pin for the utility model preferred embodiment;

Accompanying drawing 2 is that the utility model preferred embodiment bolt screws out the end structure transverse sectional view;

Accompanying drawing 3 is the utility model preferred embodiment bolt screw terminal structure transverse sectional view;

Accompanying drawing 4 partly cuts open schematic representation for the installing stopper structure of the utility model preferred embodiment;

Accompanying drawing 5 is the installing stopper structure plan view of the utility model preferred embodiment;

Accompanying drawing 6 is the retaining pin pin structure schematic representation of the utility model preferred embodiment.

Embodiment:

One preferred embodiment is described further the utility model to the utility model below in conjunction with accompanying drawing, see shown in accompanying drawing 1～accompanying drawing 6,

Include nut body 1, column type pin (retaining spare) 2, on the inwall of nut body 1, have two half wedge type slots 3 (can increase as required or reduce) symmetrically, half wedge type slot 3 along the bolt screw-in direction from shallow to deep, corresponding movable built-in column type pins 2 (can increase as required) in each half wedge type slot 3; The bolt of nut body screws out that the Ben Bi top of end is one-body molded a ring-like tensile members 4, the internal diameter of this annular tensile members 4 is identical with the internal diameter size of nut body 4, and form thread pitch and the consistent screw thread of direction with nut body 1 on the inwall, the said structure of OK a karaoke club spare 4 has not only strengthened the tensility of nut greatly but also has guaranteed the smooth back-out of bolt; Be movably set with an installing stopper 5 in the center hole of nut, during construction, it is along with screw rod screws in nut, and is released the center hole of nut gradually by screw rod, in order to release smoothly, forms lug 6 on the outer wall of installing stopper.

The embodiment of the above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, so the equivalence that all shapes according to the utility model, structure and principle are done changes, all should be covered by in the protection domain of the present utility model.

Claims

1, a kind of tension anti-theft nut of being convenient to install, include nut body (1), retaining spare (2), it is characterized in that: the inwall in nut body (1) is provided with half wedge type slot (3), half wedge type slot (3) along the bolt screw-in direction from shallow to deep, retaining spare (2) places in this half wedge type slot (3); The bolt of nut body screws out that the Ben Bi top of end is one-body molded a ring-like tensile members (4), the internal diameter of this annular tensile members (4) is identical with the internal diameter size of nut body (1), and forms thread pitch and the consistent screw thread of direction with nut body (1) on the inwall; Be movably set with installing stopper (5) in the center hole of nut.

2, a kind of tension anti-theft nut of being convenient to install according to claim 1, it is characterized in that: described retaining spare (2) is a column type pin.

3, a kind of tension anti-theft nut of being convenient to install according to claim 1 is characterized in that: described half wedge type slot (3) is one or more.

4, according to claim 1 or 3 described a kind of tension anti-theft nuts of being convenient to install, it is characterized in that: the retaining spare (2) in each half wedge type slot (3) is one or more.