CN2859056Y - Anti-theft nut - Google Patents
Anti-theft nut Download PDFInfo
- Publication number
- CN2859056Y CN2859056Y CN 200520120378 CN200520120378U CN2859056Y CN 2859056 Y CN2859056 Y CN 2859056Y CN 200520120378 CN200520120378 CN 200520120378 CN 200520120378 U CN200520120378 U CN 200520120378U CN 2859056 Y CN2859056 Y CN 2859056Y
- Authority
- CN
- China
- Prior art keywords
- nut
- wedge type
- semi
- nut body
- type groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present utility model discloses a theftproof nut with reasonable structure, simple installation and lower cost. It includes a nut body, a backstop part, a semi-wedge type groove is set near the retreating end on the nut body inner wall, the depth of said semi-wedge type groove increases along the advancing direction, said backstop part is set in the said semi-wedge type groove. On the periphery of the retreating end of the nut body a cover matching with the semi-wedge type groove is integrated, a moveable installation plug is set in the central hole of the nut. In the present utility model, a cover matching with the semi-wedge type groove is integrated on the periphery of the retreating end of the nut body, said cover replaces the anti-looseness ring in the existing technique, the height of nut is reduced on the construction, and the step of embeding the anti-looseness ring in the annular deep groove is omited when said cover is installed so as to reduce effectively the cost and raise the installation efficiency.
Description
Technical field:
The utility model relates to construction and uses technical field of fastening, refers in particular to a kind of nut with anti-theft feature.
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 annular deep trouth the height that has increased nut is set, increased cost, and install also relative complex, reduced efficiency of construction during construction.
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, simple, as to save cost anti-theft nut is installed.
For achieving the above object, the technological scheme that the utility model provides is: include nut body, retaining spare, on the inwall of nut body, screw out end and be provided with half wedge type slot near bolt, 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 one-body moldedly on the circumference of end has a capping that cooperates with half wedge type slot; Be movably set with installing stopper in the center hole of nut.
After the utility model adopts technique scheme, one-body molded on the circumference at end opening place the capping that cooperates with half wedge type slot arranged owing to screw out at the bolt of nut body.This capping has replaced the anti-DNA releaxed circular DNA of prior art, has structurally reduced the height of nut, has also saved during installation at circle and has embedded the step of locking ring in the annular deep trouth, thereby reduced cost effectively, 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, preferred embodiment of the present utility model includes nut body 1, column type pin (retaining spare) 2, on the inwall of nut body 1, screw out the half wedge type slot 3 (can increase as required or reduce) that end has two symmetries near bolt, 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 one-body moldedly on the circumference of end has a capping 4 that cooperates with half wedge type slot 3, this capping 4 has prevented that effectively pin 2 from dropping out half wedge type slot 3, and, increased the tensility of nut to a certain extent because capping 4 and nut body 1 are one-body molded; 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 (4)
1, a kind of anti-theft nut, include nut body (1), retaining spare (2), it is characterized in that: on the inwall of nut body (1), screw out end and be provided with half wedge type slot (3) near bolt, 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 one-body moldedly on the circumference of end has a capping (4) that cooperates with half wedge type slot (3); Be movably set with installing stopper (5) in the center hole of nut.
2, a kind of anti-theft nut according to claim 1 is characterized in that: described retaining spare (2) is a column type pin.
3, a kind of anti-theft nut 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 anti-theft nuts, it is characterized in that: the retaining spare (2) in each half wedge type slot (3) is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520120378 CN2859056Y (en) | 2005-12-13 | 2005-12-13 | Anti-theft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520120378 CN2859056Y (en) | 2005-12-13 | 2005-12-13 | Anti-theft nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859056Y true CN2859056Y (en) | 2007-01-17 |
Family
ID=37611915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520120378 Expired - Fee Related CN2859056Y (en) | 2005-12-13 | 2005-12-13 | Anti-theft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859056Y (en) |
-
2005
- 2005-12-13 CN CN 200520120378 patent/CN2859056Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |