CN204397788U - Nut dismounting sleeve - Google Patents
Nut dismounting sleeve Download PDFInfo
- Publication number
- CN204397788U CN204397788U CN201420869259.5U CN201420869259U CN204397788U CN 204397788 U CN204397788 U CN 204397788U CN 201420869259 U CN201420869259 U CN 201420869259U CN 204397788 U CN204397788 U CN 204397788U
- Authority
- CN
- China
- Prior art keywords
- nut
- dismounting
- pullover
- clamping head
- casing
- 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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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model relates to the dismounting field of valve nut in nuclear power maintenance.The workload that when overhauling valve for solving in prior art, the work of dismounting nut brings is large, manpower expends problem that is large, long in time limit and nut easy damaged, the utility model proposes a kind of nut dismounting sleeve, this nut dismounting sleeve comprises pullover, casing and clamping head; Described pullover for two ends run through, inside can the tubular structure of sheathed nut; The tubular structure that described casing is inner hollow, one end is closed; The non-blind end of described casing is fixedly connected with described pullover one end, and described clamping head is arranged on the blind end of described casing.When using the utility model nut dismounting sleeve dismounting nut; the problem of small space inner nut dismounting difficulty can not only be solved; greatly reduce the workload of maintainer, shorten maintenance duration, also protect screw mandrel simultaneously, ensure the steady running of nuclear power station follow-up work.
Description
Technical field
The utility model relates to the valve maintenance field in nuclear power station maintenance process, particularly relates to the sleeve removing valve nut in a kind of narrow working space.
Background technology
The inspection to valve element and maintenance is all comprised in the required project of each overhaul of nuclear power station.At present when overhauling valve, all need to use the nut on spanner dismounting, installation and adjustment valve.But in nuclear power station, most equipment is arranged closely compact, the space for maintenance can leaving maintainer for is very narrow and small, maintainer must be very careful when using spanner to screw nut, especially for spring adjusting nut, likely there is the jammed situation of spring being screwed in process in nut, needs maintainer movable gently with spanner clamping nut, departed from by jammed spring and come.Outside the screw rod be located in nut is exposed to, maintainer is when screwing or regulating spanner, and screw rod of inevitably damaging, and valve element belongs to high precision components, the impaired meeting of screw rod has influence on the normal work of valve.Therefore, staff is necessary careful operation in maintenance process, this just increases the workload that nuclear power station is installed or safeguarded greatly, have impact on the duration, labor intensive, and screw in process and also may cause nut discontinuity equalization, cause nut to occur damage, affect the normal work of valve, potential safety hazard is buried to the operation of nuclear power station.
Utility model content
The workload that when overhauling valve for solving in prior art, the work of dismounting nut brings is large, manpower expends problem that is large, long in time limit and nut easy damaged, the utility model proposes a kind of nut dismounting sleeve, this nut dismounting sleeve comprises pullover, casing and clamping head; Described pullover for two ends run through, inside can the tubular structure of sheathed nut; The tubular structure that described casing is inner hollow, one end is closed; The non-blind end of described casing is fixedly connected with described pullover one end, and described clamping head is arranged on the blind end of described casing.
During use, by the pullover nut being set in needs dismounting of the utility model nut dismounting sleeve, thus the screw rod be arranged in this nut is located in casing, uses spanner clamping clamping head also to screw, thus nut dismounting is got off.
When using the utility model nut dismounting sleeve dismounting nut; the problem of small space inner nut dismounting difficulty can not only be solved; avoid maintainer notes also protection screw rod situation when adjusting spanner; greatly reduce the workload of maintainer, shorten maintenance duration; also protect screw rod simultaneously, ensure the steady running of nuclear power station follow-up work.
Preferably, described clamping head is right prism structure.When described clamping head is right prism structure, easy access personnel clamp.
Further, described clamping head is six prism structures.When described clamping head is six prism structure, when maintainer screws the nut being set in and needing dismounting or installation, ratchet spanner can be used to be set on this clamping head, to have saved labour.
When using the utility model nut dismounting sleeve dismounting nut, the problem of small space inner nut dismounting difficulty can not only be solved, also protect screw rod simultaneously, ensured the steady running of nuclear power station follow-up work.
Accompanying drawing explanation
Fig. 1 is the stereo-resolution figure of the utility model nut dismounting sleeve.
Detailed description of the invention
As shown in Figure 1, a kind of nut dismounting sleeve comprises pullover 1, casing 2 and clamping head 3; Pullover 1 for two ends run through, inside can the tubular structure of sheathed nut; The tubular structure that casing 2 is inner hollow, one end is closed; Clamping head 3 is six prism structures; The non-blind end of casing 2 is fixedly connected with one end of pullover 1, and clamping head 3 is arranged on the blind end of casing 2.
During use, be set in pullover 1 of the utility model nut dismounting sleeve on the nut that needs to remove, thus the screw rod be arranged in this nut be located in casing 2, use ratchet spanner to be set on clamping head 3 and screw, thus nut dismounting is got off.
When using the utility model nut dismounting sleeve dismounting nut, the problem of small space inner nut dismounting difficulty can not only be solved, also protect screw rod simultaneously, ensured the steady running of nuclear power station follow-up work.
Claims (3)
1. a nut dismounting sleeve, is characterized in that, this nut dismounting sleeve comprises pullover, casing and clamping head; Described pullover for two ends run through, inside can the tubular structure of sheathed nut; The tubular structure that described casing is inner hollow, one end is closed; The non-blind end of described casing is fixedly connected with described pullover one end, and described clamping head is arranged on the blind end of described casing.
2. nut dismounting sleeve according to claim 1, is characterized in that, described clamping head is right prism structure.
3. nut dismounting sleeve according to claim 2, is characterized in that, described clamping head is six prism structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869259.5U CN204397788U (en) | 2014-12-31 | 2014-12-31 | Nut dismounting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869259.5U CN204397788U (en) | 2014-12-31 | 2014-12-31 | Nut dismounting sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204397788U true CN204397788U (en) | 2015-06-17 |
Family
ID=53421684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420869259.5U Expired - Fee Related CN204397788U (en) | 2014-12-31 | 2014-12-31 | Nut dismounting sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204397788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177126A (en) * | 2016-12-08 | 2018-06-19 | 海天塑机集团有限公司 | The mounting process and its installation tool of a kind of ejection cylinder and ejection guide plate |
-
2014
- 2014-12-31 CN CN201420869259.5U patent/CN204397788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177126A (en) * | 2016-12-08 | 2018-06-19 | 海天塑机集团有限公司 | The mounting process and its installation tool of a kind of ejection cylinder and ejection guide plate |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20211231 |