CN208106892U - A kind of voltage-stablizer cover plate for manhole fixed ring - Google Patents
A kind of voltage-stablizer cover plate for manhole fixed ring Download PDFInfo
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- CN208106892U CN208106892U CN201820461254.7U CN201820461254U CN208106892U CN 208106892 U CN208106892 U CN 208106892U CN 201820461254 U CN201820461254 U CN 201820461254U CN 208106892 U CN208106892 U CN 208106892U
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- manhole
- voltage
- cover plate
- stablizer
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Abstract
The utility model relates to flight-line maintenance fields, specifically disclose a kind of voltage-stablizer cover plate for manhole fixed ring, including two semi-rings, described two semi-rings are tightened together by screw bolt and nut surrounds an annulus, jackscrew bracket is equipped on the end face of annulus, threaded hole is equipped on jackscrew bracket, screw is located in threaded hole.The utility model can effectively prevent voltage-stablizer cover plate for manhole and glide because of self weight, facilitate the dismounting of manhole bolt, effectively improve working efficiency, shorten operation construction period, reduce the security risk of staff's raying irradiation.
Description
Technical field
The utility model belongs to flight-line maintenance field, and in particular to a kind of voltage-stablizer cover plate for manhole fixed ring.
Background technique
In nuclear power plant's overhaul, voltage-stablizer cover plate for manhole need to be opened to realize the open to atmosphere operation of voltage-stablizer.Voltage-stablizer people
Blind patch arranges that during switching manhole, heavy weight cover board can be glided due to gravity and be pressed onto bolt in 45° angle.
And cover board extruding bolt will will lead to bolt deformation, so that dismounting is difficult, increase the working time, while increasing personnel's external exposure agent
Amount, possibly even causes the screw thread of nuclear leve equipment to damage when serious.
Summary of the invention
The purpose of this utility model is to provide a kind of voltage-stablizer cover plate for manhole fixed rings, realize cover board not because under self weight
It is sliding, facilitate the dismounting of manhole bolt.
The technical solution of the utility model is as follows：
A kind of voltage-stablizer cover plate for manhole fixed ring, including two semi-rings；
The both ends of described two semi-rings are fastened by screw bolt and nut respectively, surround an annulus；
The annulus is set on voltage-stablizer manhole collar, and the medial surface of annulus is contacted with the lateral wall of voltage-stablizer cylinder, circle
One side end face of ring and voltage-stablizer manhole collar flush with outer surface, and the jackscrew bracket protruded is equipped on the side end face；
Threaded hole is equipped on the jackscrew bracket, the central axes of threaded hole and the central axes of annulus are vertical, screw position
In threaded hole.
When the screw rod end of screw is screwed out from the other end of threaded hole, cover plate for manhole can be touched, by adjusting screw
The depth of threaded hole is screwed in adjust the concentricity of cover plate for manhole and manhole collar.
There are four the jackscrew brackets.
It is all provided on each semi-ring there are two jackscrew bracket, two centers of the jackscrew bracket based on semi-ring on each semi-ring
Position is symmetrical.
The position mirror symmetry of jackscrew bracket on two semi-rings.
The range of the line angulation of two jackscrew brackets and half ring center is between 60~120 °.
Four screw uniform forces on four jackscrew brackets, keep cover plate for manhole through-hole and threaded hole concentric.
The jackscrew bracket is fixedly connected with semi-ring by fillet weld.
The bolt, screw and nut are standard component.
The beneficial effects of the utility model are：
(1) the utility model is fixed by purely mechanic design, and apparatus structure is simple, easy for installation, practical.
(2) the utility model fixed ring can effectively prevent voltage-stablizer cover plate for manhole and glide because of self weight, facilitate manhole bolt
Dismounting, effectively improve working efficiency, shorten operation construction period, reduce the security risk of staff's raying irradiation.
(3) the utility model fixed ring can effectively avoid bolt and threaded hole from damaging, and play good finished product protection and make
With.
Detailed description of the invention
Fig. 1 is fixed ring main view；
Fig. 2 is fixed ring left view.
In figure：1. semi-ring；2. jackscrew bracket；3. bolt；4. screw；5. nut.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.
A kind of voltage-stablizer cover plate for manhole fixed ring as shown in Figs. 1-2, including two semi-rings 1, the two of described two semi-rings 1
End is fastened by bolt 3 and nut 5 respectively, surrounds an annulus.The annulus be set to voltage-stablizer manhole collar on, annulus it is interior
Side is contacted with the lateral wall of voltage-stablizer cylinder, a side end face of annulus and voltage-stablizer manhole collar flush with outer surface, and in the side
The jackscrew bracket 2 protruded there are four being set on end face.It is all provided on each semi-ring 1 there are two jackscrew bracket 2, on each semi-ring 1
Two centers of the jackscrew bracket 2 based on semi-ring 1 are symmetrical, and two jackscrew brackets 2 and the line in 1 center of circle of semi-ring institute at
The range of angle is between 60~120 °.The position mirror symmetry of jackscrew bracket 2 on two semi-rings 1.The jackscrew bracket 2
It is fixedly connected with semi-ring 1 by fillet weld.
Threaded hole is equipped on the jackscrew bracket 2, the central axes of threaded hole and the central axes of annulus are vertical, screw 4
In threaded hole.Voltage-stablizer cover plate for manhole can be touched when the screw rod end of screw 4 screws out threaded hole, by adjusting four
Screw 4 screws in the depth of threaded hole to adjust the concentricity of cover plate for manhole and manhole collar.Four screws 4 need uniform stressed, make one
Blind patch through-hole and threaded hole are concentric.
Bolt 3, screw 4 and the nut 5 is standard component.
Claims (9)
1. a kind of voltage-stablizer cover plate for manhole fixed ring, it is characterised in that：Including two semi-rings (1)；
The both ends of described two semi-rings (1) pass through bolt (3) and nut (5) fastening respectively, surround an annulus；
The annulus is set on voltage-stablizer manhole collar, and the medial surface of annulus is contacted with the lateral wall of voltage-stablizer cylinder, annulus
One side end face and voltage-stablizer manhole collar flush with outer surface, and the jackscrew bracket (2) protruded is equipped on the side end face；
Threaded hole is equipped on the jackscrew bracket (2), the central axes of threaded hole and the central axes of annulus are vertical, screw (4)
In threaded hole.
2. a kind of voltage-stablizer cover plate for manhole fixed ring as described in claim 1, it is characterised in that：When the screw rod end of screw (4)
When screwing out from the other end of threaded hole, cover plate for manhole can be touched, screws in the depth of threaded hole by adjusting screw (4) to adjust
The concentricity of whole cover plate for manhole and manhole collar.
3. a kind of voltage-stablizer cover plate for manhole fixed ring as claimed in claim 2, it is characterised in that：The jackscrew bracket (2)
There are four.
4. a kind of voltage-stablizer cover plate for manhole fixed ring as claimed in claim 3, it is characterised in that：On each semi-ring (1)
If the center that two jackscrew brackets (2) on each semi-ring (1) are based on semi-ring (1) is mutually right there are two jackscrew bracket (2)
Claim.
5. a kind of voltage-stablizer cover plate for manhole fixed ring as claimed in claim 4, it is characterised in that：Top on two semi-rings (1)
The position mirror symmetry of silk bracket (2).
6. a kind of voltage-stablizer cover plate for manhole fixed ring as claimed in claim 5, it is characterised in that：Two jackscrew brackets
(2) and the range of the line angulation in semi-ring (1) center of circle is between 60~120 °.
7. a kind of voltage-stablizer cover plate for manhole fixed ring as claimed in claim 6, it is characterised in that：Four jackscrew brackets
(2) four screw (4) uniform forces on, keep cover plate for manhole through-hole and threaded hole concentric.
8. a kind of voltage-stablizer cover plate for manhole fixed ring as described in any one of claims 1 to 7, it is characterised in that：The top
Silk bracket (2) is fixedly connected with semi-ring (1) by fillet weld.
9. a kind of voltage-stablizer cover plate for manhole fixed ring as claimed in claim 8, it is characterised in that：The bolt (3), screw
(4) and nut (5) is standard component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820461254.7U CN208106892U (en) | 2018-04-03 | 2018-04-03 | A kind of voltage-stablizer cover plate for manhole fixed ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820461254.7U CN208106892U (en) | 2018-04-03 | 2018-04-03 | A kind of voltage-stablizer cover plate for manhole fixed ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208106892U true CN208106892U (en) | 2018-11-16 |
Family
ID=64119733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820461254.7U Active CN208106892U (en) | 2018-04-03 | 2018-04-03 | A kind of voltage-stablizer cover plate for manhole fixed ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208106892U (en) |
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2018
- 2018-04-03 CN CN201820461254.7U patent/CN208106892U/en active Active
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