CN202073894U - Internal hexagonal bolt for nuclear power station - Google Patents
Internal hexagonal bolt for nuclear power station Download PDFInfo
- Publication number
- CN202073894U CN202073894U CN2011201484526U CN201120148452U CN202073894U CN 202073894 U CN202073894 U CN 202073894U CN 2011201484526 U CN2011201484526 U CN 2011201484526U CN 201120148452 U CN201120148452 U CN 201120148452U CN 202073894 U CN202073894 U CN 202073894U
- Authority
- CN
- China
- Prior art keywords
- nuclear power
- power station
- nut
- screw
- head cap
- 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
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Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses an internal hexagonal bolt for a nuclear power station, which comprises a nut, a screw and an annular groove. An internal hexagon is arranged in the middle of the nut, threads are arranged on a side of the nut, and the annular groove is arranged between the nut and the screw. The internal hexagonal bolt for the nuclear power station has the advantages that the service life of the internal hexagonal bolt is prolonged, and fastening and detaching are facilitated.
Description
Technical field
The utility model relates to a kind of bolt, particularly a kind of used in nuclear power station hexagon socket head cap screw.
Background technique
Bolt is by a head and a screw rod class fastening piece dimerous, needs to cooperate with nut, is used to be fastenedly connected two parts that have through hole.Bolt is the important spare part of nuclear power plant reactor, and it is widely used in the build-up member such as nuclear power plant reactor, to guarantee the proper functioning of nuclear power plant reactor, ensures its Security.
Bolt is divided into hexagon socket head cap screw, snap bolt, square head bolt etc., existing hexagon socket head cap screw comprises nut and screw rod, on nut, be provided with interior hexagonal, in the installation and removal process, can only carry out fastening and dismounting by inner hexagon wrench, in frequent using process like this, interior hexagonal is worn and torn easily, so just can not carry out fastening and dismounting, can only scrap at last and need reinstall a new bolt, cause waste like this and have influence on the normal use of nuclear power station.
The model utility content
Technical problem to be solved in the utility model provides a kind of used in nuclear power station hexagon socket head cap screw, and it increases working life, and convenient fastening and dismounting.
For solveing the technical problem, the utility model provides a kind of used in nuclear power station hexagon socket head cap screw, and the used in nuclear power station hexagon socket head cap screw comprises nut and screw rod, and the centre of nut is provided with interior hexagonal, it is characterized in that, the side of nut is provided with screw thread.
Preferably, described used in nuclear power station hexagon socket head cap screw also comprises annular groove, and annular groove is located between nut and the screw rod.
Preferably, described screw thread be shaped as straight thread, the pitch of screw thread is one millimeter.
Positive progressive effect of the present utility model is: the utility model used in nuclear power station hexagon socket head cap screw increases working life, and convenient fastening and dismounting.
Description of drawings
Fig. 1 is the plan view of the utility model used in nuclear power station hexagon socket head cap screw.
Fig. 2 is the plan view of the utility model used in nuclear power station hexagon socket head cap screw.
Embodiment
Lift a preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the utility model used in nuclear power station hexagon socket head cap screw comprises nut 1, screw rod 2, annular groove 5, and annular groove 5 is located between nut 1 and the screw rod 2, prevents that like this stress is too concentrated.The centre of nut 1 is provided with interior hexagonal 4, and the side of nut 1 is provided with screw thread 3, can also pull by tap wrench like this, and not only inner hexagon wrench carries out fastening and dismounting, makes things convenient for the use of nuclear power station, increases working life.Screw thread 3 be shaped as straight thread, the pitch of screw thread 3 is 1 millimeter.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these mode of executions.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (3)
1. used in nuclear power station hexagon socket head cap screw, the used in nuclear power station hexagon socket head cap screw comprises nut and screw rod, and the centre of nut is provided with interior hexagonal, it is characterized in that, and the side of nut is provided with screw thread.
2. used in nuclear power station hexagon socket head cap screw as claimed in claim 1 is characterized in that, described used in nuclear power station hexagon socket head cap screw also comprises annular groove, and annular groove is located between nut and the screw rod.
3. used in nuclear power station hexagon socket head cap screw as claimed in claim 1 is characterized in that, described screw thread be shaped as straight thread, the pitch of screw thread is one millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201484526U CN202073894U (en) | 2011-05-11 | 2011-05-11 | Internal hexagonal bolt for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201484526U CN202073894U (en) | 2011-05-11 | 2011-05-11 | Internal hexagonal bolt for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073894U true CN202073894U (en) | 2011-12-14 |
Family
ID=45111998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201484526U Expired - Fee Related CN202073894U (en) | 2011-05-11 | 2011-05-11 | Internal hexagonal bolt for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073894U (en) |
-
2011
- 2011-05-11 CN CN2011201484526U patent/CN202073894U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20200511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |