CN207997282U - A kind of trapezoidal locking nut provision for disengagement - Google Patents
A kind of trapezoidal locking nut provision for disengagement Download PDFInfo
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- CN207997282U CN207997282U CN201721530266.2U CN201721530266U CN207997282U CN 207997282 U CN207997282 U CN 207997282U CN 201721530266 U CN201721530266 U CN 201721530266U CN 207997282 U CN207997282 U CN 207997282U
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- trapezoidal
- nut
- locking nut
- disengagement
- provision
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Abstract
The utility model belongs to nuclear power station service technique field, and in particular to and it is a kind of simple in structure, it can effectively solve the problem that the trapezoidal locking nut provision for disengagement of the difficult problem of trapezoidal locking nut dismounting;Including heat shielding (1), trapezoidal nut (2), rotating handle (3), installation set (4) and screw (5);The trapezoidal nut (2) is set to above heat shielding (1), and installation set (4) is placed on the outside of trapezoidal nut (2), fixed by screw (5) and trapezoidal nut (2);Three rotating handles (3), which are uniformly distributed, to be fixed in installation set (4);A kind of trapezoidal locking nut provision for disengagement of the utility model is simple in structure, easy to use;A kind of trapezoidal locking nut provision for disengagement of the utility model can effectively solve the problem that the difficult problem of trapezoidal locking nut dismounting, and install that rotating handle is time saving, laborsaving, and work efficiency is high;A kind of trapezoidal locking nut provision for disengagement of the utility model will not cause to damage to parts such as heat shielding, trapezoidal nuts.
Description
Technical field
The invention belongs to nuclear power station service technique fields, and in particular to a kind of trapezoidal locking nut provision for disengagement.
Background technology
Two units of nuclear power station first stage of the project are respectively configured with the identical main feed pump of bench-types No. five, the driving end of model pump
There are one trapezoidal locking nuts to be used for locking the sleeve of heat shielding with the position of fixes sleeve.Due to the heat shielding and trapezoidal locking nut
It is directly exposed in inlet chamber, enter the erosion of saliva in order to prevent, heat shielding chamber is made streamlined, and corresponding locking nut is made
It is trapezoidal.When carrying out dismounting work, since locking nut is in irregular shape, forced area is small, it is not easy using hook spanner solid
Determine, along with accumulation of impurities such as corrosion, silts, it is difficult to dismantle or be installed in place, the type is pumped every time
When being overhauled, dismantles the locking nut and always waste certain time.
Invention content
The object of the present invention is in view of the shortcomings of the prior art, provide a kind of simple in structure, trapezoidal locking can effectively solve the problem that
The trapezoidal locking nut provision for disengagement of the problem of nut dismounting difficulty.
The technical scheme is that:
A kind of trapezoidal locking nut provision for disengagement, including heat shielding 1, trapezoidal nut 2, rotating handle 3, installation set 4 and screw 5;
The trapezoidal nut 2 is set to 1 top of heat shielding, and installation set 4 is placed on 2 outside of trapezoidal nut, is fixed by screw 5 and trapezoidal nut 2;
Three rotating handles 3, which are uniformly distributed, to be fixed in installation set 4.
4 inner plane of the installation set is bonded with 2 upper surface perfection of the trapezoidal nut.
4 radial hole of the installation set and 2 radial hole of the trapezoidal nut are concentric.
The beneficial effects of the invention are as follows:
1, a kind of trapezoidal locking nut provision for disengagement of the invention is simple in structure, easy to use;
2, a kind of trapezoidal locking nut provision for disengagement of the invention can effectively solve the problem that trapezoidal locking nut dismounting difficulty
Problem, and install that rotating handle is time saving, laborsaving, and work efficiency is high;
3, a kind of trapezoidal locking nut provision for disengagement of the invention will not cause to damage to parts such as heat shielding, trapezoidal nuts
Wound.
Description of the drawings
Fig. 1 is the shaft side figure of heat shielding and trapezoidal locking nut;
Fig. 2 is a kind of trapezoidal locking nut provision for disengagement schematic diagram side view;
Fig. 3 is a kind of trapezoidal locking nut provision for disengagement schematic diagram vertical view;
Fig. 4 is a kind of trapezoidal locking nut provision for disengagement schematic diagram front view.
Specific implementation mode
The present invention is further introduced with embodiment below in conjunction with the accompanying drawings:
A kind of trapezoidal locking nut provision for disengagement, including heat shielding 1, trapezoidal nut 2, rotating handle 3, installation set 4 and screw 5;
The trapezoidal nut 2 is set to 1 top of heat shielding, and installation set 4 is placed on 2 outside of trapezoidal nut, is fixed by screw 5 and trapezoidal nut 2;
Three rotating handles 3, which are uniformly distributed, to be fixed in installation set 4.
4 inner plane of the installation set is bonded with 2 upper surface perfection of the trapezoidal nut.
4 radial hole of the installation set and 2 radial hole of the trapezoidal nut are concentric.
Embodiment
Successively six screws and protective case are screwed in installation set, installation set and trapezoidal nut are cooperated, ensure peace
Encapsulation inner plane is bonded with trapezoidal nut upper surface, and radial hole corresponds with one heart, is fixed on trapezoidal nut.Three are rotated
Handle screws in installation set.Rotating handle is turned counterclockwise or backs out trapezoidal nut with copper rod percussion.
Claims (3)
1. a kind of trapezoidal locking nut provision for disengagement, it is characterised in that:Including heat shielding (1), trapezoidal nut (2), rotating handle (3),
Installation set (4) and screw (5);The trapezoidal nut (2) is set to above heat shielding (1), and installation set (4) is placed on trapezoidal nut (2) outside
Side, it is fixed by screw (5) and trapezoidal nut (2);Three rotating handles (3), which are uniformly distributed, to be fixed in installation set (4).
2. a kind of trapezoidal locking nut provision for disengagement as described in claim 1, it is characterised in that:It is put down in the installation set (4)
Face is bonded with the trapezoidal nut (2) upper surface perfection.
3. a kind of trapezoidal locking nut provision for disengagement as described in claim 1, it is characterised in that:The installation set (4) is radial
Hole and the trapezoidal nut (2) radial hole are concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721530266.2U CN207997282U (en) | 2017-11-16 | 2017-11-16 | A kind of trapezoidal locking nut provision for disengagement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721530266.2U CN207997282U (en) | 2017-11-16 | 2017-11-16 | A kind of trapezoidal locking nut provision for disengagement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207997282U true CN207997282U (en) | 2018-10-23 |
Family
ID=63836267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721530266.2U Active CN207997282U (en) | 2017-11-16 | 2017-11-16 | A kind of trapezoidal locking nut provision for disengagement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207997282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724096A (en) * | 2017-11-16 | 2018-11-02 | 江苏核电有限公司 | A kind of trapezoidal locking nut provision for disengagement |
-
2017
- 2017-11-16 CN CN201721530266.2U patent/CN207997282U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724096A (en) * | 2017-11-16 | 2018-11-02 | 江苏核电有限公司 | A kind of trapezoidal locking nut provision for disengagement |
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