CN108167570A - A kind of pipe sealing device - Google Patents

A kind of pipe sealing device Download PDF

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Publication number
CN108167570A
CN108167570A CN201711422599.8A CN201711422599A CN108167570A CN 108167570 A CN108167570 A CN 108167570A CN 201711422599 A CN201711422599 A CN 201711422599A CN 108167570 A CN108167570 A CN 108167570A
Authority
CN
China
Prior art keywords
pipe
cylinder
plug
nut
sealing
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.)
Pending
Application number
CN201711422599.8A
Other languages
Chinese (zh)
Inventor
徐传仁
桂昆伟
王汉兵
周金波
陈彬
杨艳娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Jingcishan Mechanical and Electrical Manufacturing Co Ltd
Original Assignee
Wuhan Jingcishan Mechanical and Electrical Manufacturing Co Ltd
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 Wuhan Jingcishan Mechanical and Electrical Manufacturing Co Ltd filed Critical Wuhan Jingcishan Mechanical and Electrical Manufacturing Co Ltd
Priority to CN201711422599.8A priority Critical patent/CN108167570A/en
Publication of CN108167570A publication Critical patent/CN108167570A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10Means for stopping flow from or in pipes or hoses
    • F16L55/11Plugs
    • F16L55/1108Plugs fixed by screwing or by means of a screw-threaded ring

Abstract

The present invention relates to a kind of pipe sealing devices, including plug, plug nut and sealing ring, plug nut leads to structure in being, one end of plug nut is set to the inside of pipe, and its outer diameter is equal with the internal diameter of pipe, the other end of plug nut is set to the outside of pipe;Plug includes the first cylinder and the second cylinder, and the first cylinder is set to the inside of pipe, and its outer diameter is equal with the internal diameter of pipe;One end of second cylinder is set to the inside of pipe, and is connect with the first cylinder, and the other end of the second cylinder passes through plug nut, and extend to the outside of plug nut;Sealing ring is set between the first cylinder and plug nut;It is threadedly coupled between plug nut and the second cylinder.The present invention has higher air-tightness and a underwater anti-pressure ability, and it is simple in structure, convenient for disassembly and assembly, reusable, be not only suitable for metal circular tube and be also applied for nonmetallic pipe.

Description

A kind of pipe sealing device
Technical field
The present invention relates to sealing device technical field, more particularly to a kind of pipe sealing device.
Background technology
In modern industrial production, the product of pipe class is too numerous to enumerate, wherein a large amount of pipe class products are needed in severe ring It is used in border;Such as need to be immersed in river water or seawater when in use for measuring the magnetostatic displacement transducer of gatage Face requires higher air-tightness and water proofing property in this way.
Existing pipe generally use gluing and the mode of welding are sealed.
Gluing mode, which seals, is chiefly used in Plastic pipe, is not used to metal class pipe, and use in harsh environment Pipe uses stainless steel to protect product more, and therefore, gluing sealing means limitation is larger, and also water resistance compared with Difference, for a long time it is easy to aging, it is easy to crack after expanding with heat and contract with cold the problems such as.
Welded seal mode is suitable for metal class pipe, perfect sealing effect is can reach after being welded, but be used as product, To consider the maintenance and dismounting of product, this sealing means are obviously undesirable.
Invention content
The technical problems to be solved by the invention are to provide a kind of pipe sealing device, above-mentioned of the prior art to overcome It is insufficient.
The technical solution that the present invention solves above-mentioned technical problem is as follows:A kind of pipe sealing device, including plug, plug spiral shell Female and sealing ring, plug nut lead to structure in being, one end of plug nut is set to the inside of pipe, and its outer diameter and pipe Internal diameter is equal, and the other end of plug nut is set to the outside of pipe;Plug includes the first cylinder and the second cylinder, the first cylinder The inside of pipe is set to, and its outer diameter is equal with the internal diameter of pipe;One end of second cylinder is set to the inside of pipe, and with First cylinder connects, and the other end of the second cylinder passes through plug nut, and extend to the outside of plug nut;Sealing ring is set to Between first cylinder and plug nut;It is threadedly coupled between plug nut and the second cylinder.
The beneficial effects of the invention are as follows:In use, after sealing device is positioned on pipe, can a hand hold and be set to Plug nut on the outside of pipe, a hand rotate the second cylinder, are displaced outwardly plug with crush seal circle, compress sealing ring Round tube inner wall is solved in the prior art because tube wall is relatively thin to reach sealing purpose, and can not be taken through in pipe The problem of mode that wall processing screw thread carrys out crush seal circle is sealed;The present invention has higher air-tightness and underwater resistance to compression energy Power, and it is simple in structure, convenient for disassembly and assembly, reusable, be not only suitable for metal circular tube and be also applied for nonmetallic pipe.
Further:Plug further includes the round platform being set between the first cylinder and the second cylinder;The cross section of sealing ring is in Right-angled trapezium, the upper bottom of right-angled trapezium are disposed in proximity to the side of the second cylinder, and the bottom of right-angled trapezium is disposed in proximity to pipe Side;Angle between the bevel edge of right-angled trapezium and bottom is equal with the inclination angle of round platform.
The advantageous effect of above-mentioned further scheme is:So that the contact surface between plug and sealing ring is inclined-plane, conducive to stifled Head, which moves to right, squeezes sealing ring.
Further:One end that plug nut is set to circular tube external is equipped with boss, the outer diameter of boss and the outer diameter phase of pipe Deng.
The advantageous effect of above-mentioned further scheme is:Conducive to realizing being fixedly connected, and make connection for plug nut and pipe The periphery for having the pipe of sealing device is neat.
Further:One end that plug nut is set to circular tube external is equipped with the first folder position, and the second cylinder is set to plug spiral shell One end outside mother is equipped with the second folder position.
The advantageous effect of above-mentioned further scheme is:The setting of first folder position is conveniently operated personnel and is come using tool such as spanner Plug nut is clamped, the setting of the second folder position facilitates staff using tool such as spanner to block the second cylinder and rotate.
Further:The internal diameter of sealing ring is more than the internal diameter of the second cylinder, and the outer diameter of sealing ring is more than the internal diameter of pipe.
The advantageous effect of above-mentioned further scheme is:The internal diameter of sealing ring is more than the internal diameter of the second cylinder, convenient for that will seal Snare is set on plug, and the outer diameter of sealing ring is more than the internal diameter of pipe, sealing ring can be made to be close to round tube inner wall.
Description of the drawings
Fig. 1 is a kind of stereogram of pipe sealing device of the present invention;
Fig. 2 is a kind of sectional view of pipe sealing device of the present invention.
In figure:1 it is plug, 11 be the first cylinder, 12 be the second cylinder, 121 be the second folder position, 13 be round platform, 2 is plug Nut, 21 be boss, 22 be the first folder position, 3 be sealing ring, 4 be pipe.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the present invention.
As depicted in figs. 1 and 2, a kind of pipe sealing device, including plug 1, plug nut 2 and sealing ring 3, plug nut 2 be in lead to structure, one end of plug nut 2 is set to the inside of pipe 4, and its outer diameter is equal with the internal diameter of pipe 4, plug spiral shell The other end of mother 2 is set to the outside of pipe 4;Plug 1 includes the first cylinder 11 and the second cylinder 12, and the first cylinder 11 is set to The inside of pipe 4, and its outer diameter is equal with the internal diameter of pipe 4;One end of second cylinder 12 is set to the inside of pipe 4, and with First cylinder 11 connects, and the other end of the second cylinder 12 passes through plug nut 2, and extend to the outside of plug nut 2;Sealing ring 3 are set between the first cylinder 11 and plug nut 2;It is threadedly coupled between plug nut 2 and the second cylinder 12.
In use, after sealing device is positioned on pipe 4, can a hand hold the plug spiral shell for being set to 4 outside of pipe Mother 2, a hand rotate the second cylinder 12, plug 1 are made to be displaced outwardly with crush seal circle 3, and sealing ring 3 is made to compress 4 inner wall of pipe To reach sealing purpose;The present invention have higher air-tightness and underwater anti-pressure ability, and it is simple in structure, convenient for disassembly and assembly, can weigh It uses again, be not only suitable for metal circular tube 4 and be also applied for nonmetallic pipe 4.
As shown in Fig. 2, plug 1 further includes the round platform 13 being set between the first cylinder 11 and the second cylinder 12;Sealing ring 3 Cross section it is in a rectangular trapezoid, the upper bottom of right-angled trapezium is disposed in proximity to the side of the second cylinder 12, and the bottom of right-angled trapezium is set It is disposed adjacent to the side of pipe 4;Angle theta between the bevel edge of right-angled trapezium and bottom2With the tiltangleθ of round platform 131It is equal.Make The contact surface obtained between plug 1 and sealing ring 3 is inclined-plane, is moved to right conducive to plug 1 and sealing ring 3 is squeezed.
As shown in Fig. 2, one end that plug nut 2 is set to outside pipe 4 is equipped with boss 21, the outer diameter and pipe of boss 21 4 outer diameter is equal.Conducive to realizing being fixedly connected for plug nut 2 and pipe 4, and make to be connected with sealing device pipe 4 outside Week is neat.
As shown in Fig. 2, one end that plug nut 2 is set to outside pipe 4 is equipped with the first folder position 22, the second cylinder 12 is set One end outside plug nut 2 is equipped with the second folder position 121.The setting of first folder position 22 is conveniently operated personnel and is such as pulled using tool Hand clamps plug nut 2, and the setting of the second folder position 121 facilitates staff using tool such as spanner to block the second cylinder 12 And it rotates.
The internal diameter of sealing ring 3 is more than the internal diameter of the second cylinder 12, and the outer diameter of sealing ring 3 is more than the internal diameter of pipe 4.Sealing ring 3 internal diameter is more than the internal diameter of the second cylinder 12, and convenient for sealing ring 3 is sheathed on plug 1, the outer diameter of sealing ring 3 is more than pipe 4 Internal diameter, sealing ring 3 can be made to be close to the inner wall of pipe 4.
The assembling process of this sealing device is:Sealing ring 3 is set on plug 1 first, and makes 3 bevel edge of sealing ring and circle The outer surface of platform 13 fits closely;Plug nut 2 is threadingly mounted on plug 1, and push against sealing ring 3 later.
Installation process of this sealing device on pipe 4 be:It will be needed for one end insertion of the first cylinder 11 of sealing device In the pipe 4 of sealing, and the outer diameter of the boss 21 of plug nut 2 is made to be aligned with the outer diameter of pipe 4;Passed through later with a spanner Plug nut 2 is fixed in first folder position 22, then rotates plug 1 by the second folder position 121 with another spanner, at this time plug 1 to It moves right and is deformed when being squeezed at the bevel edge for making sealing ring 3, so as to compress the inner wall of pipe 4 to achieve the purpose that sealing.
If the upper bottom of right-angled trapezium is a, go to the bottom as b, and set displacement distance of the plug 1 in locking as s, then work as sealing ring The η of 3 deformation rate η=2s/ (a+b)>When 8%, that is, complete the seal operation to pipe 4.When needing to dismantle the present apparatus, Gu Determine plug nut 2, reversely rotate plug 1, the device is made to be extracted after loosening, you can complete dismounting.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (5)

1. a kind of pipe sealing device, it is characterised in that:Including plug (1), plug nut (2) and sealing ring (3), the plug Nut (2) leads to structure in being, one end of the plug nut (2) is set to the inside of pipe (4), and its outer diameter and the pipe (4) internal diameter is equal, and the other end of the plug nut (2) is set to the outside of the pipe (4);The plug (1) includes First cylinder (11) and the second cylinder (12), first cylinder (11) are set to the inside of the pipe (4), and its outer diameter with The internal diameter of the pipe (4) is equal;One end of second cylinder (12) is set to the inside of the pipe (4), and with it is described First cylinder (11) connects, and the other end of second cylinder (12) passes through the plug nut (2), and extend to the plug The outside of nut (2);The sealing ring (3) is set between first cylinder (11) and the plug nut (2);It is described stifled It is threadedly coupled between head nut (2) and second cylinder (12).
2. a kind of pipe sealing device according to claim 1, it is characterised in that:The plug (1), which further includes, is set to institute State the round platform (13) between the first cylinder (11) and second cylinder (12);The cross section of the sealing ring (3) is at right angles terraced Shape, the upper bottom of the right-angled trapezium are disposed in proximity to the side of second cylinder (12), the bottom setting of the right-angled trapezium In close to the side of the pipe (4);Angle and the round platform (13) between the bevel edge of the right-angled trapezium and the bottom Inclination angle it is equal.
3. a kind of pipe sealing device according to claim 1, it is characterised in that:The plug nut (2) is set to described The external one end of pipe (4) is equipped with boss (21), and the outer diameter of the boss (21) is equal with the outer diameter of the pipe (4).
4. a kind of pipe sealing device according to claim 1, it is characterised in that:The plug nut (2) is set to described The external one end of pipe (4) is equipped with the first folder position (22), and second cylinder (12) is set to plug nut (2) outside One end is equipped with the second folder position (121).
5. a kind of pipe sealing device according to claim 1, it is characterised in that:The internal diameter of the sealing ring (3) is more than institute The internal diameter of the second cylinder (12) is stated, the outer diameter of the sealing ring (3) is more than the internal diameter of the pipe (4).
CN201711422599.8A 2017-12-25 2017-12-25 A kind of pipe sealing device Pending CN108167570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711422599.8A CN108167570A (en) 2017-12-25 2017-12-25 A kind of pipe sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711422599.8A CN108167570A (en) 2017-12-25 2017-12-25 A kind of pipe sealing device

Publications (1)

Publication Number Publication Date
CN108167570A true CN108167570A (en) 2018-06-15

Family

ID=62520360

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711422599.8A Pending CN108167570A (en) 2017-12-25 2017-12-25 A kind of pipe sealing device

Country Status (1)

Country Link
CN (1) CN108167570A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218177A (en) * 1988-05-06 1989-11-08 Norman Epstein Plug for heat exchanger tubes
US7464727B1 (en) * 2007-10-22 2008-12-16 Ips Corporation Clean-out repair plug
CN202176003U (en) * 2011-08-06 2012-03-28 张卫 Floor drain plug
CN203500748U (en) * 2013-08-11 2014-03-26 刘立起 Conical expansion sealing plug
US20140182728A1 (en) * 2010-04-27 2014-07-03 Postoak Services Inc. Bore Plug
CN203743155U (en) * 2014-02-20 2014-07-30 北京广瑞杰机电设备有限公司 Expansion plug
CN204829104U (en) * 2015-08-06 2015-12-02 哈尔滨锅炉厂有限责任公司 Stopper that expands is pressed to double containment type internal thread controlling water
CN205298942U (en) * 2016-01-26 2016-06-08 兖矿鲁南化肥厂 Combined casing cap

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218177A (en) * 1988-05-06 1989-11-08 Norman Epstein Plug for heat exchanger tubes
US7464727B1 (en) * 2007-10-22 2008-12-16 Ips Corporation Clean-out repair plug
US20140182728A1 (en) * 2010-04-27 2014-07-03 Postoak Services Inc. Bore Plug
CN202176003U (en) * 2011-08-06 2012-03-28 张卫 Floor drain plug
CN203500748U (en) * 2013-08-11 2014-03-26 刘立起 Conical expansion sealing plug
CN203743155U (en) * 2014-02-20 2014-07-30 北京广瑞杰机电设备有限公司 Expansion plug
CN204829104U (en) * 2015-08-06 2015-12-02 哈尔滨锅炉厂有限责任公司 Stopper that expands is pressed to double containment type internal thread controlling water
CN205298942U (en) * 2016-01-26 2016-06-08 兖矿鲁南化肥厂 Combined casing cap

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PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
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Application publication date: 20180615