CN201031855Y - Flat top anti-theft nut - Google Patents
Flat top anti-theft nut Download PDFInfo
- Publication number
- CN201031855Y CN201031855Y CNU2007200789253U CN200720078925U CN201031855Y CN 201031855 Y CN201031855 Y CN 201031855Y CN U2007200789253 U CNU2007200789253 U CN U2007200789253U CN 200720078925 U CN200720078925 U CN 200720078925U CN 201031855 Y CN201031855 Y CN 201031855Y
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- Prior art keywords
- nut
- internal
- theft
- utility
- model
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- Expired - Fee Related
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Abstract
The utility model relates to a flatheaded anti-theft nut; an internal nut is arranged for fastening and the shape of the internal nut is like a hollow round-head bolt which is embedded in a round groove of an external nut; an internal hole is equipped with threads which are matched with a screw and the outside is equipped with fine left-hand shallow threads which are matched with the external nut. The external nut is a tubular one and a central hole is equipped with fine left-hand threads which are matched with the internal nut; the locking strength is lower than the locking strength of the internal nut and the screw. The combined nut is arranged in the screw and screwed down; when the rated torque is reached, the external nut threads destroy sliding wires and the external nut can only skid around the internal nut to realize the anti-theft function. The internal bolt cap is designed to be a plane end and the utility model can be made of stainless steel or colorful plastic; the utility model is elegant in appearance and can not be dismantled with conventional tools and in this way the utility model can play an ornamental role with color compared with the ordinary anti-theft nut.
Description
Technical field
The utility model relates to a kind of nut part, especially license plate of fastening piece and decorates anti-theft nut.
Background technique
At present, known conventional nut is convenient to loading and unloading because of it, also is convenient to the theft of crime one's share of expenses for a joint undertaking and destroys; Some have the nut of anti-theft feature, but lack decorative artistic effect.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of flat-top anti-theft nut, just can reach purpose not only antitheft but also attractive in appearance.
The technical scheme in the invention for solving the technical problem is: the flat-top anti-theft nut that is combined by inner nut and outer nut, it is characterized in that: the inner nut of fastening effect together is set, external form is as the hollow snap bolt, its cap embeds the circular groove of outer nut, endoporus is and the box thread of screw rod coupling that the outside is the left-handed shallow thread of closely-pitched that mates with outer nut.Outer nut is only to work the short-lived nut that drives the fastening effect of inner nut, and external form is a tubulose, and mesopore is and the left-handed box thread of closely-pitched of inner nut coupling that its locking intensity is lower than the locking intensity of inner nut and screw rod.Earlier with inner nut, the outer nut of packing into screws into a suit assembled nut during use.This assembled nut is packed into and is tightened by pipe wrench behind the screw rod, and when reaching rated torque, short-lived nut thread destroys stripped thread, can only skid in the inner nut periphery, just again interior tightening nut can't be unloaded with conventional means and instrument, to reach antitheft purpose.The through hole of inner nut is arranged to blind hole, with the bolt head cap lid of inner nut, be arranged to the plane end socket, available stainless steel or colored plastic in addition, light not only attractive in appearance is gorgeous but also can't be with the dismounting of conventional tool holder, and that plays that general anti-theft nut can't play has a coloured decorating action of light.Here be noted that spiro rod length, behind the locking object, can not surmount in the sphere end socket empty.
The beneficial effects of the utility model are: simple in structure, tamper robber is functional, ornamental by force, cost is low.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is an inner nut panorama schematic representation, and Fig. 2 is an outer nut panorama schematic representation, and Fig. 3 is that inner nut is dissected schematic representation, and Fig. 4 is that outer nut is dissected schematic representation, and Fig. 5 is that the assembled nut that is assembled into is dissected schematic representation, and Fig. 6 is a schematic top plan view.
The cylindrical cap of plane end socket of 1. inner nuts among the figure is 2. with the coarse thread box thread of screw rod coupling, 3. with the left-handed shallow thread of closely-pitched of outer nut coupling, 4. with inner nut round end cap interior circular groove movingly, 5. with the left-handed box thread of closely-pitched of inner nut coupling.
Embodiment
In the drawings, the inner nut of fastening effect (1) together is set, external form is as the hollow snap bolt, and its cap embeds the circular groove (4) of outer nut, and endoporus is and the box thread (2) of screw rod coupling that the outside is the left-handed shallow thread of closely-pitched (3) that mates with outer nut.Outer nut is only to work the short-lived nut that drives the fastening effect of inner nut, and external form is a tubulose, and mesopore is and the left-handed box thread of closely-pitched (5) of inner nut coupling that its locking intensity is lower than the locking intensity of inner nut and screw rod.This assembled nut is packed into and is tightened by pipe wrench behind the screw rod, and when reaching rated torque, short-lived nut thread destroys stripped thread, can only skid in the inner nut periphery, just again interior tightening nut can't be unloaded with conventional means and instrument, to reach antitheft purpose.In addition with the bolt head cap lid of inner nut, be arranged to the plane end socket, light not only attractive in appearance is gorgeous but also can't dismantle with conventional tool holder, and that plays that general anti-theft nut can't play has a coloured decorating action of light.
Claims (3)
1. flat-top anti-theft nut, combine by inner nut and outer nut, it is characterized in that: the inner nut of fastening effect (1) together is set, external form is as the hollow snap bolt, endoporus is and the box thread (2) of screw rod coupling that the outside is and the left-handed shallow thread of closely-pitched (3) of outer nut coupling that the outer nut external form is a tubulose, mesopore is and the left-handed box thread of closely-pitched (5) of inner nut coupling that its locking intensity is lower than the locking intensity of inner nut and screw rod.
2. by the described flat pre-antitheft nut of claim 1, it is characterized in that: the circular cap cover of inner nut, the circular groove (4) of embedding outer nut.
3. by the described flat-top anti-theft nut of claim 1, it is characterized in that: the bolt head cap lid of its inner nut, be arranged to the plane end socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200789253U CN201031855Y (en) | 2007-03-30 | 2007-03-30 | Flat top anti-theft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200789253U CN201031855Y (en) | 2007-03-30 | 2007-03-30 | Flat top anti-theft nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031855Y true CN201031855Y (en) | 2008-03-05 |
Family
ID=39163747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200789253U Expired - Fee Related CN201031855Y (en) | 2007-03-30 | 2007-03-30 | Flat top anti-theft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031855Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041825A (en) * | 2015-07-31 | 2015-11-11 | 苏州速腾电子科技有限公司 | Lock nut capable of being quickly dismounted and mounted |
-
2007
- 2007-03-30 CN CNU2007200789253U patent/CN201031855Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041825A (en) * | 2015-07-31 | 2015-11-11 | 苏州速腾电子科技有限公司 | Lock nut capable of being quickly dismounted and mounted |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 |