CN2191312Y - Theft-proof conic expansive nail - Google Patents
Theft-proof conic expansive nail Download PDFInfo
- Publication number
- CN2191312Y CN2191312Y CN 94208154 CN94208154U CN2191312Y CN 2191312 Y CN2191312 Y CN 2191312Y CN 94208154 CN94208154 CN 94208154 CN 94208154 U CN94208154 U CN 94208154U CN 2191312 Y CN2191312 Y CN 2191312Y
- Authority
- CN
- China
- Prior art keywords
- nail
- expansion cylinder
- theft
- expansion
- top part
- 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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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model discloses an anti-theft conic expansion nail, being composed of an expansion cylinder and a nail rod. The tail part of the expansion cylinder is provided with a convex round table, the top part is provided with a sharp flange, the middle part to the top part of the expansion cylinder form a cone shape, the expansion surface is provided with four open grooves, the top part of the nail rod is a flat head, the middle part to the top part form a cone shape, the nail rod is hammered into the expansion cylinder and the four open grooves are expanded, the flange is bunted into a wall with a certain depth to achieve the fastening purpose, and the convex round table at the tail part plays an anti-theft role. The utility model has the advantages of reasonable design, low material consumption, good fastening performance and low labor consumption.
Description
The utility model belongs to a kind of antitheft tapering expandable nail.
At present, expandable nail on the market has various, as patent 92231150.1 towards the core expandable nail, patent 92206971.9 nail, patent 90225585.1 nail etc. that expands that expands, tightness is good inadequately, and is more loosening, and uses effort.
The purpose of this utility model is for avoiding the deficiencies in the prior art that the antitheft tapering expandable nail that a kind of fastening performance is good, antitheft, cost is low, use is laborsaving, raise labour efficiency is provided.
The purpose of this utility model realizes by taking following measure: a kind of antitheft tapering expandable nail is made up of expansion cylinder, nail bar.It is characterized in that expansion cylinder (1) afterbody has protruding garden platform (4), middle part to the top of expansion cylinder (1) is tapered, the flange (3) of tip shape is arranged at the top, flange (3) is the same big with expansion cylinder (1), expanding noodles (2) has four opening slots, nail bar (5) top is a tack, and middle part to top is tapered.
The utility model is reasonable in design, the saving material, reduces cost, and raise labour efficiency, and fastening performance is good, is difficult for the sled pine, and assembling Anti-theft door and window and fastening object are the most suitable.
The utility model description of drawings:
Fig. 1 is the utility model structural representation.
Expansion cylinder of the present utility model, all available steel of nail bar are cast.Need antitheft door, when being fixed on metope or the cement board, objects such as window bore one and expansion cylinder (1) hole of a size at metope earlier, the depth ratio nail bar (5) in its hole is long, on the need fixture, also bore an onesize hole again, expansion cylinder (1) is inserted in the hole that needs fixture and metope, an end that nail bar (5) is had tapering, insert in the expansion cylinder (1), hammering nail bar (5) makes four opening slot distendings of expanding noodles (2), flange (3) is also simultaneously to heading into certain degree of depth within the walls, be fixed on object on the body of wall firmly, the protruding garden platform (4) of expansion cylinder (1) is close on the object that is fixed, need not again tight with the electric welding weldering, also fixation can't be taken out, play antitheft effect.
Claims (1)
1, a kind of antitheft tapering expandable nail is by expansion cylinder, the nail bar is formed, it is characterized in that expansion cylinder (1) afterbody has protruding garden platform (4), middle part to the top of expansion cylinder (1) is tapered, the flange (3) of tip shape is arranged at the top, and flange (3) is the same big with expansion cylinder (1), and expanding noodles (2) has four opening slots, nail bar (5) top is a tack, and middle part to top is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94208154 CN2191312Y (en) | 1994-04-06 | 1994-04-06 | Theft-proof conic expansive nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94208154 CN2191312Y (en) | 1994-04-06 | 1994-04-06 | Theft-proof conic expansive nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2191312Y true CN2191312Y (en) | 1995-03-08 |
Family
ID=33826254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94208154 Expired - Fee Related CN2191312Y (en) | 1994-04-06 | 1994-04-06 | Theft-proof conic expansive nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2191312Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404886C (en) * | 2005-11-14 | 2008-07-23 | 力帆实业(集团)股份有限公司 | Self-positioning expansion adapter sleeve |
-
1994
- 1994-04-06 CN CN 94208154 patent/CN2191312Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404886C (en) * | 2005-11-14 | 2008-07-23 | 力帆实业(集团)股份有限公司 | Self-positioning expansion adapter sleeve |
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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 |