CN201053435Y - Cone concave decorated anti-theft screw bolt - Google Patents
Cone concave decorated anti-theft screw bolt Download PDFInfo
- Publication number
- CN201053435Y CN201053435Y CNU2007200792699U CN200720079269U CN201053435Y CN 201053435 Y CN201053435 Y CN 201053435Y CN U2007200792699 U CNU2007200792699 U CN U2007200792699U CN 200720079269 U CN200720079269 U CN 200720079269U CN 201053435 Y CN201053435 Y CN 201053435Y
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- CN
- China
- Prior art keywords
- nut
- screw
- external
- internal
- concave surface
- 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 utility model provides a theftproof nut with cone concave decoration which is characterized in that: an internal nut with clamp function has an appearance similar to a hollow crop conical screw cap bolt, and the screw cap of the nut is embedded into a conical groove of an external nut; an inner hole has master threads matching with a screw, and the outside has fine left hand shallow threads matching with the external nut; the external nut has an appearance the same as a hex nut, and the middle hole has the fine left hand shallow threads matching with the internal nut; the locking intensity of the external nut is lower than that of the internal nut and the screw. The combined nut is packed into the screw and is screwed down, and when up to the rating torque, short-lived threads of the external nut damage the sliding filament and are capable of only skidding on the periphery of the internal nut; the screw cap of the internal nut is made into a cone concave end closure which can be made of stainless steel or colorful plastic; therefore, the utility model is beautiful and colorful and can not be clamped or disassembled by common tools, thereby having the function of bright and colorful decoration which common theftproof nuts do not have.
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 awl concave surface to decorate 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: decorate anti-theft nut by the awl concave surface that inner nut and outer nut combine, it is characterized in that: the inner nut of fastening effect together is set, external form is as the conical cap screw of hollow tack, its cap embeds the cone-shaped 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 the same hexagon nut of external form, mesopore are 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.The outer nut of earlier inner nut being packed into during use screws into a suit assembled nut.This assembled nut is packed into and is tightened by spanner behind the screw rod, and when reaching rated torque, short-lived outer nut thread damage 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 more important thing is, tack top at the conical cap of tack, one awl concave surface end socket is set, make it increase very strong decorative effect, useful stainless steel or colored plastic are made, 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, empty in can not surmounting awl concave surface end socket behind the locking object.
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 flattened conical shape cap of 1. inner nuts adds awl concavity end socket among the figure, 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 cap inner conical 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 hollow tack conical screw, its cap embeds the cone-shaped groove (4) of outer nut, 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 a short-lived nut that drives the fastening effect of inner nut, the same hexagon nut of external form, 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 spanner 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 tack top of the conical cap of tack of inner nut, an awl concave surface end socket is set, 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. an awl concave surface is decorated 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 conical screw of hollow tack, 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, the same hexagon nut of outer nut external form, 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. decorate anti-theft nut by the described awl concave surface of claim 1, it is characterized in that: the conical cap tack of the tack of its inner nut top is provided with an awl concave surface end socket.
3. decorate anti-theft nut by the described awl concave surface of claim 1, it is characterized in that: recessed conical cap of the awl of inner nut (1), the cone-shaped groove (4) of embedding outer nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200792699U CN201053435Y (en) | 2007-04-23 | 2007-04-23 | Cone concave decorated anti-theft screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200792699U CN201053435Y (en) | 2007-04-23 | 2007-04-23 | Cone concave decorated anti-theft screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053435Y true CN201053435Y (en) | 2008-04-30 |
Family
ID=39393098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200792699U Expired - Fee Related CN201053435Y (en) | 2007-04-23 | 2007-04-23 | Cone concave decorated anti-theft screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053435Y (en) |
-
2007
- 2007-04-23 CN CNU2007200792699U patent/CN201053435Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 |