CN203863628U - Distance expander for pipe flanges - Google Patents
Distance expander for pipe flanges Download PDFInfo
- Publication number
- CN203863628U CN203863628U CN201320729648.3U CN201320729648U CN203863628U CN 203863628 U CN203863628 U CN 203863628U CN 201320729648 U CN201320729648 U CN 201320729648U CN 203863628 U CN203863628 U CN 203863628U
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- CN
- China
- Prior art keywords
- nuts
- sections
- expander
- screw
- shaped
- 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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Abstract
The utility model provides a distance expander for pipe flanges. The distance expander is provided with a screw, wherein two sections of threads are manufactured on the screw axially in opposite rotation directions, threaded holes matched with the two sections of threads in rotation directions are formed in the middles of two nuts, through holes are formed in the lateral ends at the upper portions of the nuts, a positioning rod penetrates through the through holes to allow the nuts to slide on the positioning rod, and positioning nails are arranged at the opposite lateral end faces at the lower ends of the nuts. According to the distance expander for the pipe flanges, the pipe flanges are separated by means of different rotation directions of the nuts when the screw is rotated, and therefore, a valve or a gasket can be installed or demounted smoothly.
Description
Technical field
The utility model belongs to Ship's Repair frock technical field, is specifically related to a kind of pipe flange apart from expander.
Background technology
Butterfly valve is because of compact conformation, low price, in each system of ship pipeline, be used widely, but butterfly valve is because repairing, when renewing and dismantling or install, because pipe-line system is at gravity, under the effect of the active forces such as twist and warping stress, distance between pipeline flange is less than the thickness of butterfly valve, the in the situation that of detaching pipelines not, take out or to pack butterfly valve into very difficult, work progress often wanted several individuals with pointed cone, to prize together in the past, the mode that cucurbit is drawn, pack/split out butterfly valve into, human input is large, labour intensity is high, inefficiency, and easily the rubber seal face of butterfly valve is done to rotten, to valve installation quality, can not guarantee, therefore be necessary to improve.
Utility model content
The technical problem that the utility model solves: provide a kind of pipe flange apart from expander, on screw rod, be shaped with two sections of screw threads that rotation direction is contrary, on it, cover has nut, utilizes the different rotation directions of two nuts that flange is separated during turn screw rod, thereby successfully installs or take out valve or pad.
The technical solution adopted in the utility model: pipe flange is apart from expander, there is screw rod, the rotation direction that described screw axial is shaped with two sections of screw threads and two sections of screw threads is contrary, two nut middle parts are shaped with and two sections of screwed holes that thread rotary orientation is suitable, two nut top sides are all shaped with through hole, backstay is through through hole and can make two nuts slide thereon, and two opposing sidepiece end faces in nut lower end are provided with locating pin.
Further, the middle part of described screw rod is optical axis, and described two sections of screw threads are placed in optical axis dual-side, and screw rod two ends are all shaped with turret head.
Further, described backstay two ends are equipped with the stopping means that prevents that nut from skidding off.
The utility model advantage compared with prior art:
1, valve when dismounting, at the monolateral or diagonal angle of flange, load onto flange spreader, rotary screw, opens flange, easily takes out valve, without pointed cone sled, cucurbit, the aid such as draws;
2, during valve installation, at the monolateral or diagonal angle of flange, load onto flange spreader, rotary screw, opens flange, easily valve and pad is put into position, without pointed cone sled, cucurbit, the aid such as draws;
3, valve dismounting/install, coordinates, assists without other people, and operating efficiency improves more than 2 times.
Accompanying drawing explanation
Structural representation when Fig. 1 is positive and negative tooth nut closure of the present utility model;
Fig. 2 is structural representation when just sending out tooth nut and opening of the present utility model;
Fig. 3 is that the A of Fig. 2 is to looking signal.
The specific embodiment
Below in conjunction with accompanying drawing 1-3, embodiment of the present utility model is described.
Pipe flange is apart from expander, there is screw rod 1, the rotation direction that described screw rod 1 is axially shaped with two sections of screw threads and two sections of screw threads is contrary, the middle part of described screw rod 1 is optical axis 7, described two sections of screw threads are placed in optical axis 7 dual-sides, screw rod 1 two ends are all shaped with turret head 8, two nut 2 middle parts are shaped with and two sections of screwed holes 5 that thread rotary orientation is suitable, two nut 2 top sides are all shaped with through hole 6, backstay 4 is through through hole 6 and can make two nuts 2 slide thereon, and backstay 4 two ends are equipped with the stopping means 9 that prevents that nut 2 from skidding off.Two opposing sidepiece end faces in nut 2 lower ends are provided with locating pin 3.
When valve dismounting or installation, the utility model device is loaded onto at monolateral or diagonal angle at flange, by the locating pin 3 of nut 2 bottom sides, withstand flange inner side simultaneously, rotary screw, two nuts 2 rotate to different directions, flange can be opened, easily take out or mounted valve, without pointed cone sled, cucurbit, the aid, single people's operation such as draw, time saving and energy saving, there is higher practical value.
Above-described embodiment, is preferred embodiment of the present utility model, is not used for limiting the utility model practical range, and the equivalence of being done with content described in the utility model claim therefore all changes, within all should being included in the utility model claim scope.
Claims (3)
1. pipe flange is apart from expander, there is screw rod (1), it is characterized in that: the rotation direction that described screw rod (1) is axially shaped with two sections of screw threads and two sections of screw threads is contrary, two nuts (2) middle part is shaped with and two sections of screwed holes (5) that thread rotary orientation is suitable, two nuts (2) top side is all shaped with through hole (6), backstay (4) is through through hole (6) and can make two nuts (2) slide thereon, and the opposing sidepiece end face in two nuts (2) lower end is provided with locating pin (3).
2. pipe flange according to claim 1, apart from expander, is characterized in that: the middle part of described screw rod (1) is optical axis (7), and described two sections of screw threads are placed in optical axis (7) dual-side, and screw rod (1) two ends are all shaped with turret head (8).
3. pipe flange according to claim 1 and 2, apart from expander, is characterized in that: described backstay (4) two ends are equipped with the stopping means (9) that prevents that nut (2) from skidding off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729648.3U CN203863628U (en) | 2013-11-18 | 2013-11-18 | Distance expander for pipe flanges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729648.3U CN203863628U (en) | 2013-11-18 | 2013-11-18 | Distance expander for pipe flanges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203863628U true CN203863628U (en) | 2014-10-08 |
Family
ID=51644613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320729648.3U Expired - Fee Related CN203863628U (en) | 2013-11-18 | 2013-11-18 | Distance expander for pipe flanges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203863628U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552031A (en) * | 2013-11-18 | 2014-02-05 | 广州中船黄埔造船有限公司 | Pipe flange distance expander |
| CN110948443A (en) * | 2019-12-17 | 2020-04-03 | 无锡住信建筑构件有限公司 | Prefabricated component form removal tool |
| CN112743483A (en) * | 2019-10-31 | 2021-05-04 | 中国航发商用航空发动机有限责任公司 | Case disassembling tool and disassembling method |
-
2013
- 2013-11-18 CN CN201320729648.3U patent/CN203863628U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552031A (en) * | 2013-11-18 | 2014-02-05 | 广州中船黄埔造船有限公司 | Pipe flange distance expander |
| CN112743483A (en) * | 2019-10-31 | 2021-05-04 | 中国航发商用航空发动机有限责任公司 | Case disassembling tool and disassembling method |
| CN112743483B (en) * | 2019-10-31 | 2022-07-12 | 中国航发商用航空发动机有限责任公司 | Case disassembling tool and disassembling method |
| CN110948443A (en) * | 2019-12-17 | 2020-04-03 | 无锡住信建筑构件有限公司 | Prefabricated component form removal tool |
| CN110948443B (en) * | 2019-12-17 | 2021-08-10 | 无锡住信建筑构件有限公司 | Prefabricated component form removal tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Cheung Chau Street in Whampoa District of Guangzhou City, Guangdong Province, No. 188 510715 Patentee after: CSSC HUANGPU WENCHONG SHIPBUILDING Co.,Ltd. Address before: Cheung Chau Street in Whampoa District of Guangzhou City, Guangdong Province, No. 188 510715 Patentee before: CSSC Guangzhou Huangpu Shipbuilding Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20211118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |