CN101025181A - Flat-top anti-theft anti-damaged screw - Google Patents
Flat-top anti-theft anti-damaged screw Download PDFInfo
- Publication number
- CN101025181A CN101025181A CN 200710048712 CN200710048712A CN101025181A CN 101025181 A CN101025181 A CN 101025181A CN 200710048712 CN200710048712 CN 200710048712 CN 200710048712 A CN200710048712 A CN 200710048712A CN 101025181 A CN101025181 A CN 101025181A
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- bolt
- inner bolt
- nut
- outer nut
- thread
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Abstract
The invention relates to a bolt part of a fastener, namely a flatheaded anti-theft breaking bolt composed of inner bolt and outer nut, characterized in that: it is set with a fastening inner bolt, namely in shape, a flatheaded conical cap bolt composed of two sections of screw bolts concentric but different in diameter, the cap of the inner bolt is inserted in the conical groove of the outer nut, the thread of the upper thicker section is a fine-pitch levogyrate light thread matching with the outer nut, and the outer nut is a short-lived nut only playing a role of driving the inner bolt to fasten and is of a shape of hex nut, and the middle hole thread of the outer nut is a fine-pitch levogyrate female thread which matches with the upper section of the inner bolt and whose locking intensity is lower than that of the inner bolt and the supporting locked net. In use, firstly placing the inner bolt in the outer nut and screwing closely into a set of combined bolt which is placed in the locked net and then screwed by wrench, and when reaching the rated torque, the thread of the short-lived nut breaks the sliding filament to make it slide only in the periphery of the inner bolt so as to be unable to demount the inner fastening bolt by routine means and tool any more.
Description
Technical field
The screw part, the especially license plate that the present invention relates to a kind of fastening piece are decorated 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 invention provides a kind of flat-top anti-theft anti-damaged screw, just can reach purpose not only antitheft but also attractive in appearance.
The technological scheme that type of the present invention solves its technical problem is: the flat-top anti-theft anti-damaged 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 conical cap bolt of tack that the concentric different screw combinations of diameter forms up and down, its cap embeds the cone-shaped groove of outer nut, the thick screw flight of last joint, it is the left-handed shallow thread of closely-pitched 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 of joint screw rod coupling, its locking intensity is lower than the locking intensity of the nut of inner bolt and supporting locking, 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, 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, with the bolt head cap lid of inner bolt, 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 screw can't play has a coloured decorating action of light.
The invention has the beneficial effects as follows: simple in structure, tamper robber is functional, ornamental by force, cost is low.
Description of drawings
The invention will be further described 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 the inner bolt front elevational schematic, 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 conical cap of 1. inner bolts is arranged to plane end socket among the figure, 2. with the left-handed shallow thread of closely-pitched of outer nut coupling, 3. with the coarse thread of nut coupling, 4. with inner bolt cap inner conical 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 conical cap bolt of tack that the concentric different screw combinations of diameter forms up and down, its cap embeds the cone-shaped groove (4) of outer nut, 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, and is first 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, 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, with the bolt head cap lid of inner bolt, 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 screw can't play has a coloured decorating action of light.
Claims (3)
1, a kind of flat-top anti-theft anti-damaged 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 conical cap bolt of tack 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 plane anti-theft and anti-damage nut of claim 1, it is characterized in that: the conical cap tack of its inner bolt, be arranged to the plane end socket.
3, by the described plane anti-theft anti-damaged screw of claim 1, it is characterized in that: the conical cap (1) of the tack of inner bolt, the cone-shaped groove (4) of embedding outer nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710048712 CN101025181A (en) | 2007-03-23 | 2007-03-23 | Flat-top anti-theft anti-damaged screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710048712 CN101025181A (en) | 2007-03-23 | 2007-03-23 | Flat-top anti-theft anti-damaged screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101025181A true CN101025181A (en) | 2007-08-29 |
Family
ID=38743719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710048712 Pending CN101025181A (en) | 2007-03-23 | 2007-03-23 | Flat-top anti-theft anti-damaged screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101025181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782059A (en) * | 2016-12-30 | 2017-05-31 | 广西玉柴机器股份有限公司 | A kind of structure and method of quick-replaceable casting mould model identification board |
-
2007
- 2007-03-23 CN CN 200710048712 patent/CN101025181A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782059A (en) * | 2016-12-30 | 2017-05-31 | 广西玉柴机器股份有限公司 | A kind of structure and method of quick-replaceable casting mould model identification board |
| CN106782059B (en) * | 2016-12-30 | 2023-08-01 | 广西玉柴机器股份有限公司 | Structure and method for quickly replacing casting mold type signboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |