CN204591958U - A kind of anti-theft bolt - Google Patents
A kind of anti-theft bolt Download PDFInfo
- Publication number
- CN204591958U CN204591958U CN201520058299.6U CN201520058299U CN204591958U CN 204591958 U CN204591958 U CN 204591958U CN 201520058299 U CN201520058299 U CN 201520058299U CN 204591958 U CN204591958 U CN 204591958U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- bolt head
- connection set
- tooth engaged
- bolt
- 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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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a kind of anti-theft bolt, comprise bolt head and screw rod, bolt head is plugged in screw rod by connection set, screw rod is provided with outside thread, and bolt head is provided with the polygonal tooth engaged raised up, and the middle part of tooth engaged is circular, the periphery of tooth engaged circle is provided with five projections, in flower-shape, connection set presents cross, is provided with the cross groove with connection set form fit in screw rod.The utility model has the advantages that: bolt head can be undertaken being connected or separating by connection set with screw rod, both conveniently by bolt tightening or unclamp, can also ensure the smooth of the surface of fixation; Polygonal tooth engaged on bolt head, needs the special key by form fit with it to use, decreases antitheft rate.
Description
Technical field
The utility model relates to a kind of bolt, particularly relates to a kind of anti-theft bolt, belongs to standard piece and manufactures field.
Background technique
Bolt is the fastening piece commonly used in daily life, general bolt head can be provided with hexagon or cross groove, proper implements can be used to be embedded in these grooves bolt is carried out tightening or unscrewing, due to hex-shaped recess or cruciform groove more common, because give robber chance, and due to bolt head be generally all the surface protruding from fixation, cause surface out-of-flatness.Therefore, a kind of new technological scheme should be provided to solve the problem.
Summary of the invention
The purpose of this utility model is: provide a kind of anti-theft bolt.
For achieving the above object, the technical solution adopted in the utility model is: a kind of anti-theft bolt, comprises bolt head and screw rod, and bolt head is plugged in screw rod by connection set, and screw rod is provided with outside thread, and bolt head is provided with the polygonal tooth engaged raised up.
The middle part of tooth engaged is circular, and the periphery of tooth engaged circle is provided with five projections, in flower-shape.
Connection set presents cross, is provided with the cross groove with connection set form fit in screw rod.
Due to the application of technique scheme, the utility model compared with prior art tool has the following advantages: bolt head can be undertaken being connected or separating by connection set with screw rod, both conveniently by bolt tightening or unclamp, the smooth of the surface of fixation can also can be ensured; Polygonal tooth engaged on bolt head, needs the special key by form fit with it to use, decreases antitheft rate.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model embodiment one structural representation.
Accompanying drawing 2 is the plan view of the utility model embodiment one.
Accompanying drawing 3 is the plan view of the screw rod of the utility model embodiment one.
In above accompanying drawing: 1-bolt head, 2-screw rod, 3-connection set, 4-outside thread, 5-tooth engaged, 6-is protruding, 7-cross groove.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment one:
As shown in Figure 1 to Figure 3, a kind of anti-theft bolt of the utility model, comprise bolt head 1 and screw rod 2, bolt head 1 is plugged in screw rod 2 by connection set 3, and screw rod 2 is provided with outside thread 4, and bolt head 1 is provided with the polygonal tooth engaged 5 raised up.
The middle part of tooth engaged 5 is circular, and the periphery of tooth engaged 5 circle is provided with five projections 6, in flower-shape.
Connection set 3 presents cross, is provided with the cross groove 7 with connection set 3 form fit in screw rod 2.
Bolt head 1 can be undertaken being connected or separating by connection set 3 with screw rod 2, both conveniently by bolt tightening or unclamp, can also ensure the smooth of the surface of fixation; Polygonal tooth engaged 5 on bolt head 1, needs the special key by form fit with it to use, decreases antitheft rate.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (3)
1. an anti-theft bolt, is characterized in that: comprise bolt head and screw rod, and described bolt head is plugged in screw rod by connection set, and described screw rod is provided with outside thread, and described bolt head is provided with the polygonal tooth engaged raised up.
2. a kind of anti-theft bolt according to claim 1, is characterized in that: the middle part of described tooth engaged is for circular, and the periphery of tooth engaged circle is provided with five projections.
3. a kind of anti-theft bolt according to claim 1, is characterized in that: described connection set presents cross, is provided with the cross groove with connection set form fit in described screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520058299.6U CN204591958U (en) | 2015-01-27 | 2015-01-27 | A kind of anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520058299.6U CN204591958U (en) | 2015-01-27 | 2015-01-27 | A kind of anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204591958U true CN204591958U (en) | 2015-08-26 |
Family
ID=53928114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520058299.6U Expired - Fee Related CN204591958U (en) | 2015-01-27 | 2015-01-27 | A kind of anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204591958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114429A (en) * | 2015-08-31 | 2015-12-02 | 邓永辉 | Detachable screw |
-
2015
- 2015-01-27 CN CN201520058299.6U patent/CN204591958U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114429A (en) * | 2015-08-31 | 2015-12-02 | 邓永辉 | Detachable screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160127 |
|
| EXPY | Termination of patent right or utility model |