CN201326869Y - Inflatable closure plug - Google Patents

Inflatable closure plug Download PDF

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Publication number
CN201326869Y
CN201326869Y CNU2008201791999U CN200820179199U CN201326869Y CN 201326869 Y CN201326869 Y CN 201326869Y CN U2008201791999 U CNU2008201791999 U CN U2008201791999U CN 200820179199 U CN200820179199 U CN 200820179199U CN 201326869 Y CN201326869 Y CN 201326869Y
Authority
CN
China
Prior art keywords
closure plug
support
air bag
inflatable
air
Prior art date
Application number
CNU2008201791999U
Other languages
Chinese (zh)
Inventor
黄志军
陈梁
杨云斐
王源
李旭宁
黄慧敏
赵志德
付荣真
Original Assignee
秦山核电有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 秦山核电有限公司 filed Critical 秦山核电有限公司
Priority to CNU2008201791999U priority Critical patent/CN201326869Y/en
Application granted granted Critical
Publication of CN201326869Y publication Critical patent/CN201326869Y/en

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Abstract

The utility model relates to a seal device, in particular to an inflatable closure plug, comprising a frame and a blocking bracket connected with the frame through a drag rod. The blocking bracket is formed by jointing two rotary tables each equipped with an arc groove at one side thereof, the other side of each rotary table is provided with an air inlet channel communicated with the arc grooves, an air sac is arranged in a circular groove formed by jointing the arc grooves of the two rotary tables, and a connector of the air sac is led out through the air inlet channels. The inflatable closure plug solves inner air isolation problems of pipelines and valves. The reusable inflatable closure plug can be designed and prepared in advance according to caliber, thereby avoiding customization defects of flanges or blind spots. The inflatable closure plug is characterized by integral closure, easy assembly, quick air isolation in pipelines or valves, foreign body resistance function and sealed effect.

Description

The inflatable seal plug
Technical field
The utility model relates to seal arrangement, is specifically related to a kind of inflatable seal plug.
Background technique
In nuclear power valve pipeline maintenance process, must strictness prevent that foreign matter from entering system, usually the measure of taking at present is with flange or blind head valve pipe to be carried out shutoff, its shortcoming is that required flange or blind head will customize processing, also need to install gasket seal when carrying out shutoff, installation rate is slower, is unfavorable for reducing operator's radiation dose.
Summary of the invention
The purpose of this utility model is to provide a kind of reusable, inflatable seal device that installation rate is fast.
Realize the technological scheme of the utility model purpose: a kind of inflatable seal plug, the obstruction support that comprises support, is connected with support by pull bar, the obstruction support interconnects one by two round platforms that simultaneously have arc groove and forms, be provided with the gas-entered passageway that communicates with arc groove on the another side of any one in two round platforms, be provided with air bag in the annular groove that the butt joint of the arc groove of two round platforms forms, the joint of air bag is drawn by gas-entered passageway.
Aforesaid inflatable seal plug, air bag adopt nitrile rubber to make.
Effect of the present utility model is: the inflatable seal plug can design and produce according to caliber in advance, can reuse, and has overcome the defective that adopts flange or blind head to need customization processing.The inflatable seal plug is with the integrated type shutoff, and is quick and easy for installation, can isolate at pipeline or valve internal cavity fast, plays anti-foreign matter and seal action.This inflatable seal plug energy sealing orifice or valve openings position, also can set up isolation at pipeline or valve internal tank proper site, and the water or the gas of energy bearing certain pressure, be easy to use the anti-foreign matter measure of conduct in the valve pipe maintenance, or do a kind of interim isolating means.
Description of drawings
Fig. 1 is the structural representation of a kind of inflatable seal plug of the present utility model.
Among the figure: 1. pipeline; 2. air bag; 3. obstruction support; 4. gas-entered passageway; 5. support; 6. nut; 7. pull bar.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, a kind of inflatable seal plug, comprise support 5, the obstruction support 3 that is connected with support 5 by pull bar 7, obstruction support 3 interconnects one by two round platforms that simultaneously have arc groove and forms, be provided with the gas-entered passageway 4 that communicates with arc groove on the another side of any one in two round platforms, be provided with air bag 2 in the annular groove that the butt joint of the arc groove of two round platforms forms, the joint of air bag 2 is drawn by gas-entered passageway 4.Support 5 is a frustoconic shape, and its axis has screw, and support 5 is fixedlyed connected by pull bar 7, nut 6 with stopping up between the support 3.Air bag 2 adopts nitrile rubber to make.
The concrete usage mode of the utility model is as follows: make the inflatable seal plug in advance, make the size of stopping up support 3 and treat that the internal diameter size of blocking pipe 1 is suitable.After being installed in air bag 2 in the annular groove, fixedly connected with stopping up between two round platforms of support 3 by screw, nut.Inflatable seal plug integral body is put into the mouth of pipe or the valve openings position that needs sealing,, support 5 is fixed on the outside end face of the mouth of pipe or valve openings, and suitably adjusts, make its air bag 2 be in the longitudinal cross-section position of pipeline 1 inside by adjusting nut 6.To air bag 2 inflations, air bag 2 fits tightly with the inwall at the mouth of pipe or valve openings place under gas pressure and finishes sealing joint by air bag 2 through gas-entered passageway 4.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.If these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.

Claims (2)

1. inflatable seal plug, it is characterized in that: comprise support (5), pass through the obstruction support (3) that pull bar (7) is connected with support (5), obstruction support (3) interconnects one by two round platforms that simultaneously have arc groove and forms, in two round platforms, be provided with the gas-entered passageway (4) that communicates with arc groove on the another side of any one, be provided with air bag (2) in the annular groove that the butt joint of the arc groove of two round platforms forms, the joint of air bag (2) is drawn by gas-entered passageway (4).
2. inflatable seal plug as claimed in claim 1 is characterized in that: air bag (2) adopts nitrile rubber to make.
CNU2008201791999U 2008-11-27 2008-11-27 Inflatable closure plug CN201326869Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201791999U CN201326869Y (en) 2008-11-27 2008-11-27 Inflatable closure plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201791999U CN201326869Y (en) 2008-11-27 2008-11-27 Inflatable closure plug

Publications (1)

Publication Number Publication Date
CN201326869Y true CN201326869Y (en) 2009-10-14

Family

ID=41178841

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201791999U CN201326869Y (en) 2008-11-27 2008-11-27 Inflatable closure plug

Country Status (1)

Country Link
CN (1) CN201326869Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102162563A (en) * 2010-12-15 2011-08-24 高平市泫氏铸管有限公司 Cast pipe coating plug
CN102200014A (en) * 2010-03-23 2011-09-28 同济大学 Earth pressure balance type annular shield machine
CN103982745A (en) * 2014-05-28 2014-08-13 中科华赫(北京)科技有限责任公司 Temporary pipeline sealing system high in reliability
CN106298243A (en) * 2016-09-30 2017-01-04 铜陵其利电子材料有限公司 A kind of capacitor core body inflation dust plug
CN106594449A (en) * 2017-02-27 2017-04-26 中国工程物理研究院总体工程研究所 Air inflation sealing device for large-diameter pipeline
CN109209692A (en) * 2018-10-10 2019-01-15 泉州台商投资区本盛机械科技有限公司 A kind of bellows seal attachment device for turbocompressor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102200014A (en) * 2010-03-23 2011-09-28 同济大学 Earth pressure balance type annular shield machine
CN102162563A (en) * 2010-12-15 2011-08-24 高平市泫氏铸管有限公司 Cast pipe coating plug
CN103982745A (en) * 2014-05-28 2014-08-13 中科华赫(北京)科技有限责任公司 Temporary pipeline sealing system high in reliability
CN106298243A (en) * 2016-09-30 2017-01-04 铜陵其利电子材料有限公司 A kind of capacitor core body inflation dust plug
CN106298243B (en) * 2016-09-30 2018-09-14 铜陵其利电子材料有限公司 A kind of capacitor core body inflation dust plug
CN106594449A (en) * 2017-02-27 2017-04-26 中国工程物理研究院总体工程研究所 Air inflation sealing device for large-diameter pipeline
CN106594449B (en) * 2017-02-27 2018-08-21 中国工程物理研究院总体工程研究所 Air inflation sealing device for large diameter pipeline
CN109209692A (en) * 2018-10-10 2019-01-15 泉州台商投资区本盛机械科技有限公司 A kind of bellows seal attachment device for turbocompressor
CN109209692B (en) * 2018-10-10 2019-10-25 泉州市佑森机械科技有限公司 A kind of bellows seal attachment device for turbocompressor

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GR01 Patent grant
C14 Grant of patent or utility model
CX01 Expiry of patent term

Granted publication date: 20091014

CX01 Expiry of patent term