CN2198441Y - Anti-theft nut - Google Patents
Anti-theft nut Download PDFInfo
- Publication number
- CN2198441Y CN2198441Y CN 94229454 CN94229454U CN2198441Y CN 2198441 Y CN2198441 Y CN 2198441Y CN 94229454 CN94229454 CN 94229454 CN 94229454 U CN94229454 U CN 94229454U CN 2198441 Y CN2198441 Y CN 2198441Y
- Authority
- CN
- China
- Prior art keywords
- nut
- deep gouge
- slot
- theft nut
- screwed
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Dowels (AREA)
Abstract
The utility model discloses a theftproof nut can be used to the electric power transmission iron tower, the bridge that need not dismantle, also can be used to the rag bolt of equipment. The nut is sealed with four steel balls, which are arranged in an arc-shaped shrinkage notch around the threaded hole, and when the nut is reversely screwed, the steel balls are squeezed between the screw rod and the notch, so that the nut cannot be screwed out. The nut has the characteristics of theft prevention and disposable use.
Description
The utility model relates to a kind of anti-theft nut, is applicable to carry iron tower, launching tower, navigation mark tower, railroad bridge, equipment stone bolt etc. by electric power other does not need the member in the place of dismantling to connect.
In prior art, the nut center is threaded the hole, freely be screwed into and back-out with bolt, when its deficiency is to be used for to connect two members that need not dismantle on the engineering, other people can back out nut or steal connected member, especially electric power carries the member on iron tower, launching tower, the railroad bridge to connect, and is usually stolen.
The purpose of this utility model is to provide a kind of anti-theft nut, and it can only be screwed into, and can not screw out.
Solution of the present utility model is achieved in that there is tapped hole at the anti-theft nut center, be processed with deep gouge at nut one end face around the center, have one or more arcs around tapped hole on the deep gouge bottom surface and shrink slot, look two, four, six of the big I of nut processing or the like, steel ball is housed and in the groove by being enclosed in the nut with ring pad that deep gouge compensates mutually.
Below in conjunction with accompanying drawing the utility model being made further detail describes:
Accompanying drawing is that anti-theft nut dissects structure diagram.
Referring to accompanying drawing, be processed with annular deep gouge 1 around the center on anti-theft nut one end face, have four arcs in upper edge, deep gouge 1 bottom surface circumference symmetry and shrink slot 2, arc shrinks slot 2 one trough rims and tapped hole open-minded logical (promptly not having trough rim).Shrink slot 2 inner width ends at arc and be placed with steel ball 3, come off, in deep gouge 1, compress a ring pad 4 for preventing steel ball 3.Steel ball 3 can be made minute movement along groove in arc shrinks slot 2, and can not drop out from the tapped hole of centre.
During use, nut is screwed into bolt from band deep gouge 1 end face, when being screwed into, steel ball 3 is in arc and shrinks slot 2 the wideest ends, and because of groove is the limit of slitting on one side, steel ball 3 can contact with around the bolt, during anti-twisting, narrowed down by wide because of arc shrinks slot 2, then steel ball 3 is squeezed in groove on one side and between the bolt and stop anti-twisting, is reached antitheft purpose.
Advantage of the present utility model and good effect are: 1. nut can only be screwed into, and can not screw out, and can prevent that nut is stolen and loosening, has disposable handling characteristics, is particularly useful for the connection of open-air structures member, also is used for need not dismantling the position. 2. simple in structure, reasonable in design, safe and feasible.
Claims (2)
1, a kind of anti-theft nut, there is tapped hole at the center, it is characterized in that nut one end face is processed with deep gouge (1) around the center, have one or more arcs around tapped hole on deep gouge (1) bottom surface and shrink slot (2), groove inner width end is equipped with steel ball (3) and by being enclosed in the nut with ring pad (4) that deep gouge (1) compensates mutually.
2,, it is characterized in that arc shrinks four of slot (2) symmetric arrangement according to the described anti-theft nut of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229454 CN2198441Y (en) | 1994-08-26 | 1994-08-26 | Anti-theft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229454 CN2198441Y (en) | 1994-08-26 | 1994-08-26 | Anti-theft nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2198441Y true CN2198441Y (en) | 1995-05-24 |
Family
ID=33841781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94229454 Expired - Fee Related CN2198441Y (en) | 1994-08-26 | 1994-08-26 | Anti-theft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2198441Y (en) |
-
1994
- 1994-08-26 CN CN 94229454 patent/CN2198441Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |