CN201027778Y - Antitheft screw nail for spherical automobile license tag - Google Patents
Antitheft screw nail for spherical automobile license tag Download PDFInfo
- Publication number
- CN201027778Y CN201027778Y CNU2007200789304U CN200720078930U CN201027778Y CN 201027778 Y CN201027778 Y CN 201027778Y CN U2007200789304 U CNU2007200789304 U CN U2007200789304U CN 200720078930 U CN200720078930 U CN 200720078930U CN 201027778 Y CN201027778 Y CN 201027778Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- nut
- inner bolt
- screw
- outer nut
- 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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- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
Abstract
The utility model relates to a bolt part of fastener, in particular to a ball-faced automobile license plate anti-theft bolt which consists of an inner bolt and an outer nut, and is characterized in that the inner bolt for combined fastening function is arranged, the outline is a round-head ball-faced bolt formed by an upper screw rod and an lower screw rod which are concentric but different in diameter, a cap is embedded into a round-shaped groove of the outer nut, the upper section has the thicker threads of the screw rod, the thicker threads are the fine tooth left-turning shallow screw threads matching with the outer nut, the outer nut is a short-life nut bringing the fastening function to the inner bolt, the outline is same as a hex nut, the middle hole is provided with the fine tooth rotation nut threads matching with the upper screw rod of the inner bolt, the locking intensity is lower than that of the inner bolt and a matched locking nut. When the utility model is used, the inner bolt is arranged into the outer nut to tightly screw in one set of combination bolt. The combination bolt is tightened by a handle after arranged into the locking nut, when the rated torque is reached, the threads of the short-life nut are damaged and slid, and can only slide around the inner bolt, the normal method and tool can not disassemble the inner fastening bolt any more.
Description
Technical field
The utility model relates to a kind of screw part, especially license plate of fastening piece and decorates anti-theft screw.
Background technique
At present, known conventional screw 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 screw of anti-theft feature, are 0420098372.4,02153416.0 anti-theft screw as the patent No., but lack decorative artistic effect.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of spherical surface vehicle license anti-theft screw, 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 spherical surface vehicle license anti-theft screw that is combined by inner bolt and outer nut, it is characterized in that: the inner bolt of fastening effect together is set, external form is for two saving the snap bolt that the concentric different screw combinations of diameter forms up and down, its cap embeds the circular groove of outer nut, the thick screw flight of last joint is the left-handed shallow thread of closely-pitched with the outer nut coupling.Outer nut is only to work a short-lived nut that drives the fastening effect of inner bolt, the same hexagon nut of external form, mesopore be with inner bolt on the left-handed box thread of closely-pitched of joint screw rod coupling, it locks the locking intensity that intensity is lower than the nut of inner bolt and supporting locking.Earlier with inner bolt, the outer nut of packing into screws into a suit screw assemblies during use.This screw assemblies is packed into and is tightened by spanner behind the locking nut, and when reaching rated torque, short-lived nut thread destroys stripped thread, can only skid in the inner bolt periphery, just again interior fastening screw trip bolt can't be unloaded with conventional means and instrument, to reach antitheft purpose.In addition, be arranged to the sphere end socket with the bolt head cap lid of inner bolt, available stainless steel or colored plastic, light not only attractive in appearance is gorgeous but also can't dismantle with conventional tool holder, and that plays that general anti-theft screw can't play has a coloured decorating action of light.
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 bolt panorama schematic representation, and Fig. 2 is an outer nut panorama schematic representation, and Fig. 3 is that the inner bolt master looks schematic representation, and Fig. 4 is that outer nut is dissected schematic representation, and Fig. 5 is that the screw assemblies that is assembled into is dissected schematic representation, and Fig. 6 is a schematic top plan view.
The cylindrical cap of spherical shape end socket of 1. inner bolts among the figure is 2. with the left-handed shallow thread of closely-pitched of outer nut coupling, 3. with the coarse thread of locking nut coupling, 4. with inner bolt round end cap interior circular groove movingly, 5. with the left-handed box thread of closely-pitched of inner bolt coupling.
Embodiment
In the drawings, the inner bolt of fastening effect together is set, external form is for two saving the snap bolt that the concentric different screw combinations of diameter forms up and down, its cap embeds the circular groove (4) of outer nut, the thick screw flight of last joint, be the left-handed shallow thread of closely-pitched (2) with the outer nut coupling. outer nut is only to work the short-lived nut that drives the fastening effect of inner bolt, the same hexagon nut of external form, mesopore be with inner bolt on the left-handed box thread of closely-pitched (5) of joint screw rod coupling, its locking intensity is lower than the locking intensity of the nut of inner bolt and supporting locking. and elder generation is with inner bolt during use, the outer nut of packing into screws into a suit screw assemblies.This screw assemblies is packed into and is tightened by spanner behind the locking nut, and when reaching rated torque, short-lived nut thread destroys stripped thread, can only skid in the inner bolt periphery, just again interior fastening screw trip bolt can't be unloaded with conventional means and instrument, to reach antitheft purpose.In addition, be arranged to the sphere end socket with the bolt head cap lid of inner bolt, available stainless steel or colored plastic, light not only attractive in appearance is gorgeous but also can't dismantle with conventional tool holder, and that plays that general anti-theft screw can't play has a coloured decorating action of light.
Claims (3)
1. spherical surface vehicle license anti-theft screw, combine by inner bolt and outer nut, it is characterized in that: the inner bolt of fastening effect together is set, external form is for two saving the snap bolt that the concentric different screw combinations of diameter forms up and down, the thick screw flight of last joint, it is the left-handed shallow thread of closely-pitched (2) with the outer nut coupling, outer nut is only to work the short-lived nut that drives the fastening effect of inner bolt, the same hexagon nut of external form, mesopore be with inner bolt on the left-handed box thread of closely-pitched (5) of joint screw rod coupling, its locking intensity is lower than the locking intensity of the nut of inner bolt and supporting locking.
2. by the described spherical surface vehicle license anti-theft screw of claim 1, it is characterized in that: the circular cap cover of inner bolt, the circular groove (4) of embedding outer nut.
3. by the described spherical surface vehicle license anti-theft screw of claim 1, it is characterized in that: the bolt head cap lid of its inner bolt, be arranged to the sphere end socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200789304U CN201027778Y (en) | 2007-03-30 | 2007-03-30 | Antitheft screw nail for spherical automobile license tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200789304U CN201027778Y (en) | 2007-03-30 | 2007-03-30 | Antitheft screw nail for spherical automobile license tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027778Y true CN201027778Y (en) | 2008-02-27 |
Family
ID=39131987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200789304U Expired - Fee Related CN201027778Y (en) | 2007-03-30 | 2007-03-30 | Antitheft screw nail for spherical automobile license tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027778Y (en) |
-
2007
- 2007-03-30 CN CNU2007200789304U patent/CN201027778Y/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: 20080227 |