CN2210277Y - Hexagon head inner hexagonal screw-bolt - Google Patents
Hexagon head inner hexagonal screw-bolt Download PDFInfo
- Publication number
- CN2210277Y CN2210277Y CN 94232095 CN94232095U CN2210277Y CN 2210277 Y CN2210277 Y CN 2210277Y CN 94232095 CN94232095 CN 94232095 CN 94232095 U CN94232095 U CN 94232095U CN 2210277 Y CN2210277 Y CN 2210277Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- hexagon head
- inner hexagonal
- head
- screw
- 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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- Forging (AREA)
Abstract
The utility model discloses a hexagon head inner hexagonal screw-bolt which belongs to a fastening joint assembly, comprising a hexagon head, a bolt, and the screw thread on the bolt. The utility model is characterized in that the central part of the hexagon head is provided with an inner hexagonal notch. The utility model with the structure of the screw has the advantages of long service life, convenient operation, and raw material saving.
Description
The utility model relates to a kind of hexagon head bolt that has interior six holes, is used for the link that is connected and fixed between machinery or the object.
Present existing hexagon head bolt and garden column cap hexagon socket head cap screw or screw, can only outer hexagonal or interior hexagonal connects fastening or dismounting, in frequent dismounting and fastening activity, its six corner angle are easy to wear, twisted the bald garden shape that is, and this situation just can not be carried out fastening or dismounting, this is influence production and work just, although screw is intact, also can only scrap, cause waste.
In view of the deficiency of above-mentioned technology, the purpose of this utility model provides a kind of working life that can increase bolt, saves the hexagon head bolt that has inner hexagonal hole of material.
The purpose of this utility model can realize by following technical proposals: promptly improve on original technical foundation, when production has hexagon head bolt now, the center portion of the head of its bolt, hexagonal shrinkage pool in stamping out, be outer-hexagonal and the disposable drawing of interior hexagonal, tetragonal shrinkage pool in also can striking out, other technologies are same as the prior art, then technique scheme can be manufactured hexagonal in the band, interior four jiaos hex head bolt or screw.
The utility model is compared with prior art owing to have interior hexagonal shrinkage pool or interior four jiaos of shrinkage pools, can carry out bolt fastening or that dismantle by hexagonal or four jiaos of spanners connects, we can say that not twisted the solid bolt failure that forms of wearing and tearing because of original outer-hexagonal head scraps, prolong working life and also saved steel simultaneously, particularly produce the bolt of big specification, its effect is more arranged, increase economic efficiency, the bolt of this kind structure can use multiple instrument to carry out fastening or dismounting, thereby increases work efficiency; Detect this kind screw thread screwing force apart from reaching the maximum allowable moment of torsion of national requirements more than 10 times by test.
Fig. 1 is that the utility model master looks and the head sectional view.
Fig. 2 is the left view of Fig. 1.
Hexagonal in the 1--, 2--screw thread, 3--hexagon head.
Specifically describe embodiment of the present utility model below in conjunction with accompanying drawing.
The production of hexagon head hexagon socket head cap screw or screw as shown in drawings, be preferably in punching press on the multi-station bolt automatic combined cold header and go out, to realize high efficiency, can according to the requirement of strength bolt head by hexagonal in a screw thread same specification or the little specification manufacturing and in four jiaos or corresponding increase head thickness to reach special usage requirement, material of the present utility model such as past.Improved on the existing frock, adopt compound die can stamp out outer-hexagonal simultaneously, hexagonal is realized in upsetting out then.
Claims (2)
1, a kind of hexagon head hexagon socket head cap screw comprises hexagon head (3), tightening latch, screw thread (2), it is characterized in that center portion on hexagon head (3) have in the hexagonal shrinkage pool.
2, by the described bolt of claim 1, it is characterized in that: the center portion on hexagon head (3) has interior four jiaos of shrinkage pools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94232095 CN2210277Y (en) | 1994-12-29 | 1994-12-29 | Hexagon head inner hexagonal screw-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94232095 CN2210277Y (en) | 1994-12-29 | 1994-12-29 | Hexagon head inner hexagonal screw-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2210277Y true CN2210277Y (en) | 1995-10-18 |
Family
ID=33843740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94232095 Expired - Fee Related CN2210277Y (en) | 1994-12-29 | 1994-12-29 | Hexagon head inner hexagonal screw-bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2210277Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438071A (en) * | 2013-09-09 | 2013-12-11 | 太仓斯普宁精密机械有限公司 | Multifunctional bolt |
| CN108412989A (en) * | 2018-04-24 | 2018-08-17 | 联禾厚普（太仓）精密机械有限公司 | A kind of tensioning swing arm |
| CN113503301A (en) * | 2021-07-27 | 2021-10-15 | 重庆长安汽车股份有限公司 | Door lock fastening bolt and vehicle |
-
1994
- 1994-12-29 CN CN 94232095 patent/CN2210277Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438071A (en) * | 2013-09-09 | 2013-12-11 | 太仓斯普宁精密机械有限公司 | Multifunctional bolt |
| CN108412989A (en) * | 2018-04-24 | 2018-08-17 | 联禾厚普（太仓）精密机械有限公司 | A kind of tensioning swing arm |
| CN113503301A (en) * | 2021-07-27 | 2021-10-15 | 重庆长安汽车股份有限公司 | Door lock fastening bolt and vehicle |
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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 |