CN201437813U - Windmill fixing bolt - Google Patents
Windmill fixing bolt Download PDFInfo
- Publication number
- CN201437813U CN201437813U CN2009201218681U CN200920121868U CN201437813U CN 201437813 U CN201437813 U CN 201437813U CN 2009201218681 U CN2009201218681 U CN 2009201218681U CN 200920121868 U CN200920121868 U CN 200920121868U CN 201437813 U CN201437813 U CN 201437813U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- hole
- polished rod
- rod
- windmill
- 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
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Wind Motors (AREA)
Abstract
The utility model provides a windmill fixing bolt which comprises a head (1) and a screw rod (3). A cylinder (2) is arranged between the head (1) and the screw rod (3); the head (1), the cylinder (2) and the screw rod (3) adopt an integrated structure; a polished rod (7) is arranged at the tail part of the screw rod (3), the diameter of the polished rod (7) is smaller than that of the screw rod (3), a through hole (4) is arranged on the polished rod (7), the axis of the through hole (4) is vertical to that of the polished rod (7), and the linear distance from the wall of the through hole (4) near the screw rod (3) to the end face of the cylinder (2) is not smaller than the total thickness of a windmill main body and a nut (5). Compared with the prior art, the nut of the windmill fixing bolt cannot be easily loosened and cannot shed off due to an opening pin is inserted in the through hole of the polished rod after the nut is screwed up; meanwhile, no thread is arranged on the polished rod, which avoids the problem that the thread is damaged by the opening pin.
Description
Technical field:
The utility model relates to a kind of bolt, particularly relates to a kind of windmill fixing bolt.
Background technique:
The windmill fixing bolt of prior art is common bolt, but is in for a long time after the bolts assemblies under the dynamic load state, and is very easily loosening even come off with the bolt nut engaged after work a period of time, and security incident of producing just takes place easily for this.Though also some is provided with the bolt of through hole now, through hole is used for inserting the opening pin to prevent nut loosening and to come off, but,, can't unload lower nut when consequently safeguarding at easily that through hole is the other thread damage of dynamic load state under shed pin because through hole is located at helical thread portion.
The model utility content:
The technical problems to be solved in the utility model provides a kind of assembling back nut and is difficult for becoming flexible and can not coming off, and screw thread can ruined windmill fixing bolt.
The utility model overcomes the above problems used technological scheme: a kind of windmill fixing bolt with following structure is provided, comprise head and screw rod, be provided with cylindrical body between described head and the screw rod, described head, cylindrical body and screw rod are integral structure, the afterbody of described screw rod is provided with polished rod, the diameter of described polished rod is less than the diameter of screw rod, described polished rod is provided with through hole, the axis of described through hole and the axis normal of polished rod, the hole wall of the nearly screw rod of described through hole is not less than the summation that the windmill body thickness adds nut thickness to the crow flight distance of cylindrical body end face.
After adopting above structure, the utility model compared with prior art, because the afterbody of screw rod is provided with polished rod, the diameter of polished rod is less than the diameter of screw rod, polished rod is provided with through hole, the axis of through hole and the axis normal of polished rod, and the hole wall of the nearly screw rod of through hole is not less than the summation that the windmill body thickness adds nut thickness to the crow flight distance of cylindrical body end face, then after nut screws, in the through hole of polished rod, plug the opening pin again.Therefore nut is spacing by the opening pin, is difficult for becoming flexible and more can not coming off; There is not screw thread on the polished rod simultaneously, with regard to the problem that does not exist screw thread to be destroyed by the opening pin.
Description of drawings:
Fig. 1 is the structural representation of prior art windmill fixing bolt.
Fig. 2 is the structural representation of the utility model windmill fixing bolt.
Fig. 3 is the schematic representation of the utility model windmill fixing bolt user mode.
As shown in the figure: 1, head, 2, cylindrical body, 3, screw rod, 4, through hole, 5, nut, 6, the windmill body, 7, polished rod.
Embodiment:
Below in conjunction with accompanying drawing and concrete embodiment, the utility model is described further, but the utility model is not limited only to following concrete embodiment:
As Fig. 1, Fig. 2 and a kind of windmill fixing bolt shown in Figure 3, comprise head 1 and screw rod 3, be provided with cylindrical body 2 between described head 1 and the screw rod 3, described head 1, cylindrical body 2 and screw rod 3 are integral structure, the afterbody of described screw rod 3 is provided with polished rod 7, the diameter of described polished rod 7 is less than the diameter of screw rod 3, described polished rod 7 is provided with through hole 4, the axis normal of the axis of described through hole 4 and polished rod 7, the hole wall of described through hole 4 nearly screw rods 3 is not less than the summation that windmill body 6 thickness add nut 5 thickness to the crow flight distance of cylindrical body 2 end faces.
During use, screw rod 3 of the present utility model and polished rod 7 are passed through hole on the windmill body 6, subsequently nut 5 is screwed on screw rod 3, at last the opening pin is inserted in the through hole 4 of polished rod 7.
Claims (1)
1. windmill fixing bolt, comprise head (1) and screw rod (3), be provided with cylindrical body (2) between described head (1) and the screw rod (3), described head (1), cylindrical body (2) and screw rod (3) are integral structure, it is characterized in that: the afterbody of described screw rod (3) is provided with polished rod (7), the diameter of described polished rod (7) is less than the diameter of screw rod (3), described polished rod (7) is provided with through hole (4), the axis normal of the axis of described through hole (4) and polished rod (7), the hole wall of the nearly screw rod (3) of described through hole (4) is not less than the summation that windmill body (6) thickness adds nut (5) thickness to the crow flight distance of cylindrical body (2) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201218681U CN201437813U (en) | 2009-06-04 | 2009-06-04 | Windmill fixing bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201218681U CN201437813U (en) | 2009-06-04 | 2009-06-04 | Windmill fixing bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437813U true CN201437813U (en) | 2010-04-14 |
Family
ID=42399787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201218681U Expired - Fee Related CN201437813U (en) | 2009-06-04 | 2009-06-04 | Windmill fixing bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437813U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233967A (en) * | 2013-04-26 | 2013-08-07 | 李峻青 | Pin type bolt |
| CN103453000A (en) * | 2012-05-29 | 2013-12-18 | 中国航空工业集团公司西安飞机设计研究所 | Safety bolt with blind hole |
| CN104235155A (en) * | 2014-09-09 | 2014-12-24 | 广东梅雁吉祥水电股份有限公司 | Easy-positioning bolt and tightening device using bolt |
| CN104249969A (en) * | 2013-06-28 | 2014-12-31 | 国家电网公司 | Steel tube tower material hoisting tool |
| CN110657144A (en) * | 2019-11-04 | 2020-01-07 | 江苏富亚给排水科技有限公司 | Water tank lacing wire bearing structure |
| CN112460126A (en) * | 2020-10-30 | 2021-03-09 | 中车长江车辆有限公司 | Anticreep threaded fastener and rail vehicle |
-
2009
- 2009-06-04 CN CN2009201218681U patent/CN201437813U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453000A (en) * | 2012-05-29 | 2013-12-18 | 中国航空工业集团公司西安飞机设计研究所 | Safety bolt with blind hole |
| CN103233967A (en) * | 2013-04-26 | 2013-08-07 | 李峻青 | Pin type bolt |
| CN104249969A (en) * | 2013-06-28 | 2014-12-31 | 国家电网公司 | Steel tube tower material hoisting tool |
| CN104235155A (en) * | 2014-09-09 | 2014-12-24 | 广东梅雁吉祥水电股份有限公司 | Easy-positioning bolt and tightening device using bolt |
| CN110657144A (en) * | 2019-11-04 | 2020-01-07 | 江苏富亚给排水科技有限公司 | Water tank lacing wire bearing structure |
| CN112460126A (en) * | 2020-10-30 | 2021-03-09 | 中车长江车辆有限公司 | Anticreep threaded fastener and rail vehicle |
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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: 20100414 Termination date: 20120604 |