CN202646315U - Anti-theft earth bolt - Google Patents
Anti-theft earth bolt Download PDFInfo
- Publication number
- CN202646315U CN202646315U CN 201220186178 CN201220186178U CN202646315U CN 202646315 U CN202646315 U CN 202646315U CN 201220186178 CN201220186178 CN 201220186178 CN 201220186178 U CN201220186178 U CN 201220186178U CN 202646315 U CN202646315 U CN 202646315U
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- CN
- China
- Prior art keywords
- nut
- theft
- utility
- model
- counterbore
- 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
Links
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to an anti-theft earth bolt, which comprises a nut and a threaded rod, wherein the periphery of the nut is round, and the top of the nut is provided with a polygonal counterbore. Since the periphery of the nut is round and the top of the nut is provided with the polygonal counterbore, the anti-theft earth bolt cannot be screwed by conventional universal tools, such as spanners and bolt drivers, a specially made tool needs to be used for screwing the anti-theft earth bolt, and therefore the anti-theft earth bolt can be effectively prevented from being stolen.
Description
Technical field
The utility model relates to power domain, is specifically related to a kind of anti-theft grounding bolt.
Background technique
At power domain, the ground wire of lightning protection normally is connected with miscellaneous part by earth stud.Present earth stud generally all is the bolt that adopts NBS, such as hex head bolt etc., these earth studs are easy to general utility tool such as spanner, screwdriver etc. to cause thus a large amount of earth studs stolen to disassembling, ground wire can not normally be connected, bring harm to line thunder protection.How to prevent the stolen puzzlement those skilled in the art problem for many years that becomes of earth stud.
The model utility content
In view of this, the utility model aims to provide a kind of anti-theft grounding bolt.
The utility model is achieved in that a kind of anti-theft grounding bolt, and it comprises nut and screw rod, and the periphery of described nut is rounded, and the top of described nut is provided with the polygonal counterbore.
As the further improvement of such scheme, described counterbore is arranged at the top center of described nut.
As the further improvement of such scheme, described counterbore is triangle, quadrilateral or hexagon.
As the further improvement of such scheme, described counterbore is equilateral triangle, rectangle or regular hexagon.
As the further improvement of such scheme, described counterbore is scalene or rhombus.
The utility model is made as circle by the periphery with nut, and at the top of nut the polygonal counterbore is set, so that the general utility tools such as existing spanner, screwdriver can't turn this anti-theft grounding bolt, and must use special special tool just can turn, can prevent effectively that thus earth stud is stolen.
Description of drawings
Fig. 1 is the side view of the anti-theft grounding bolt that provides of the utility model the first embodiment.
Fig. 2 is the plan view of the anti-theft grounding bolt of Fig. 1.
Fig. 3 is the structural representation of the anti-theft grounding bolt that provides of the utility model the second embodiment.
Fig. 4 is the structural representation of the anti-theft grounding bolt that provides of the utility model the 3rd embodiment.
Fig. 5 is the structural representation of the anti-theft grounding bolt that provides of the utility model the 4th embodiment.
Fig. 6 is the structural representation of the anti-theft grounding bolt that provides of the utility model the 5th embodiment.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As depicted in figs. 1 and 2, the anti-theft grounding bolt that provides of the utility model the first embodiment comprises nut 11 and screw rod 12.The periphery of nut 11 is rounded, and the top center of nut 11 is provided with Hexagon counterbore 13.In the present embodiment, this counterbore is regular hexagon.
Be made as circle by the periphery with nut 11, and at the top of nut 11 the Hexagon counterbore is set, so that the general utility tools such as existing spanner, screwdriver can't turn this anti-theft grounding bolt, and must use special special tool just can turn, can prevent effectively that thus earth stud is stolen.
Certainly, the counterbore shape at the nut top of anti-theft grounding bolt of the present utility model is not limited to be Hexagon, also can for as shown in Figure 3 equilateral triangle or rectangle shown in Figure 4, can also be pentagon or Heptagon etc.
Need to prove that the shape of counterbore is not limited to be regular polygon.
The anti-theft grounding bolt that Fig. 5 provides for the utility model the 4th embodiment, the counterbore shape at its nut top are scalene.
The anti-theft grounding bolt that Fig. 6 provides for the utility model the 5th embodiment, the counterbore shape at its nut top are rhombus.
The utility model is made as circle by the periphery with nut, and at the top of nut the polygonal counterbore is set, so that the general utility tools such as existing spanner, screwdriver can't turn this anti-theft grounding bolt, and must use special special tool just can turn, can prevent effectively that thus earth stud is stolen.
The above, only be embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with embodiment, yet be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all belong to the scope of technical solutions of the utility model.
Claims (5)
1. anti-theft grounding bolt, it comprises nut and screw rod, it is characterized in that, and the periphery of described nut is rounded, and the top of described nut is provided with the polygonal counterbore.
2. anti-theft grounding bolt as claimed in claim 1 is characterized in that, described counterbore is arranged at the top center of described nut.
3. anti-theft grounding bolt as claimed in claim 1 is characterized in that, described counterbore is triangle, quadrilateral or hexagon.
4. anti-theft grounding bolt as claimed in claim 3 is characterized in that, described counterbore is equilateral triangle, rectangle or regular hexagon.
5. anti-theft grounding bolt as claimed in claim 3 is characterized in that, described counterbore is scalene or rhombus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186178 CN202646315U (en) | 2012-04-27 | 2012-04-27 | Anti-theft earth bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186178 CN202646315U (en) | 2012-04-27 | 2012-04-27 | Anti-theft earth bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646315U true CN202646315U (en) | 2013-01-02 |
Family
ID=47415430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220186178 Expired - Fee Related CN202646315U (en) | 2012-04-27 | 2012-04-27 | Anti-theft earth bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646315U (en) |
-
2012
- 2012-04-27 CN CN 201220186178 patent/CN202646315U/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 | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121206 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121206 Address after: 037008 No. 61 Yingbin West Road, Shanxi, Datong Patentee after: Datong Power Supply Branch, Shanxi Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 037008 No. 61 Yingbin West Road, Shanxi, Datong Patentee before: Datong Power Supply Branch, Shanxi Electric Power Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |