CN203051445U - Anti-theft bolt connection pair - Google Patents
Anti-theft bolt connection pair Download PDFInfo
- Publication number
- CN203051445U CN203051445U CN 201220641284 CN201220641284U CN203051445U CN 203051445 U CN203051445 U CN 203051445U CN 201220641284 CN201220641284 CN 201220641284 CN 201220641284 U CN201220641284 U CN 201220641284U CN 203051445 U CN203051445 U CN 203051445U
- Authority
- CN
- China
- Prior art keywords
- nut
- cap
- bolt head
- screw rod
- theft
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses an anti-theft bolt connection pair, comprising a bolt head, a screw rod and a nut, wherein an arc bump is arranged on the lateral face of the bolt head; an elastic gasket is sleeved at the screw rod, which is close to the bolt head; the nut is in a shape of a circular truncated cone; a protection edge and a cap are arranged on the lower end face of the nut along the outer edge; and the cap is arranged inside the protection edge. The anti-theft bolt connection pair has the advantages of simple structure, high security and good anti-theft effect, and is applicable to popularization and utilization.
Description
Technical field
The utility model relates to a kind of link, particularly a kind of anti-theft bolt auxiliary connection.
Background technique
The auxiliary connection that is made of bolt and nut that tradition is used is because as link, when being used for connecting workpiece, there is the stolen problem of workpiece in anti-unloading with it inevitably.
Summary of the invention
It is a kind of simple in structure, safe that the purpose of this utility model just is to provide, the anti-theft bolt auxiliary connection of good anti-theft effect.
To achieve these goals, the technical solution adopted in the utility model is such: anti-theft bolt auxiliary connection of the present utility model, comprise bolt head, screw rod and nut, the side of described bolt head is provided with arc convex, be socketed with elastic washer near bolt head on the screw rod, nut is frustoconic shape, the lower end surface of nut be provided with along the outer protect the edge and and cap, and cap be arranged on protect along in.
As preferably, the upper diameter of described nut is less than lower diameter.
As preferably, described and cap side is provided with the groove of up/down perforation.
Compared with prior art, advantage of the present utility model is: the utility model is simple in structure, and cost is lower, bolt head is provided with arc convex, nut is frustoconic shape, needs special-purpose instrument to dismantle, and is socketed with elastic washer on the screw rod, when workpiece expands with heat and contract with cold, prevent bolt looseness, the lower end surface of nut be provided with along the outer protect the edge and and cap, prevent from that nut from fall twisting to withdraw from, therefore the utility model good anti-theft effect is fit to promote the use of.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, anti-theft bolt auxiliary connection of the present utility model, comprise bolt head 1, screw rod 2 and nut 3, the side of described bolt head 1 is provided with arc convex 4, is socketed with elastic washer near bolt head 1 on the screw rod 2, and nut 3 is frustoconic shape, the lower end surface of nut 3 be provided with along the outer protect the edge and and cap 5, and cap 5 be arranged on protect along in, the upper diameter of described nut 3 is less than lower diameter, described and cap 5 sides are provided with the groove of up/down perforation.
During use, earlier elastic washer is socketed on the screw rod 2, again screw rod 2 is passed the screw of workpiece 6, then nut 3 is socketed on the screw rod 2, at last will and cap 5 sink to protecting along interior of nut 3 and namely finish installation, otherwise during dismounting, bolt head 1 is provided with arc convex 4, nut 3 is frustoconic shape, needs special-purpose instrument to dismantle, and is socketed with elastic washer on the screw rod 2, when workpiece expands with heat and contract with cold, prevent bolt looseness, the lower end surface of nut 3 be provided with along the outer protect the edge and and cap 5, prevent from that nut 3 from falling to twist to withdraw from.
Claims (3)
1. anti-theft bolt auxiliary connection, comprise bolt head, screw rod and nut, it is characterized in that: the side of described bolt head is provided with arc convex, be socketed with elastic washer near bolt head on the screw rod, nut is frustoconic shape, the lower end surface of nut be provided with along the outer protect the edge and and cap, and cap be arranged on protect along in.
2. anti-theft bolt auxiliary connection according to claim 1, it is characterized in that: the upper diameter of described nut is less than lower diameter.
3. anti-theft bolt auxiliary connection according to claim 1, it is characterized in that: described and cap side is provided with the groove of up/down perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220641284 CN203051445U (en) | 2012-11-29 | 2012-11-29 | Anti-theft bolt connection pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220641284 CN203051445U (en) | 2012-11-29 | 2012-11-29 | Anti-theft bolt connection pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051445U true CN203051445U (en) | 2013-07-10 |
Family
ID=48734403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220641284 Expired - Fee Related CN203051445U (en) | 2012-11-29 | 2012-11-29 | Anti-theft bolt connection pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201980A (en) * | 2015-10-09 | 2015-12-30 | 海盐远洋标准件有限公司 | Screw of building scaffold |
| CN105240384A (en) * | 2015-10-28 | 2016-01-13 | 苏州道众机械制造有限公司 | Anti-theft special-shaped bolt |
-
2012
- 2012-11-29 CN CN 201220641284 patent/CN203051445U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201980A (en) * | 2015-10-09 | 2015-12-30 | 海盐远洋标准件有限公司 | Screw of building scaffold |
| CN105240384A (en) * | 2015-10-28 | 2016-01-13 | 苏州道众机械制造有限公司 | Anti-theft special-shaped bolt |
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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: 20130710 Termination date: 20131129 |