CN2329829Y - Double sealing sleeve extending device - Google Patents

Double sealing sleeve extending device Download PDF

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Publication number
CN2329829Y
CN2329829Y CN 98213532 CN98213532U CN2329829Y CN 2329829 Y CN2329829 Y CN 2329829Y CN 98213532 CN98213532 CN 98213532 CN 98213532 U CN98213532 U CN 98213532U CN 2329829 Y CN2329829 Y CN 2329829Y
Authority
CN
China
Prior art keywords
sleeve
conduit
flexible pipe
pipe
expansion bend
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
Application number
CN 98213532
Other languages
Chinese (zh)
Inventor
赵铎
Original Assignee
赵铎
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 赵铎 filed Critical 赵铎
Priority to CN 98213532 priority Critical patent/CN2329829Y/en
Application granted granted Critical
Publication of CN2329829Y publication Critical patent/CN2329829Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a double sealing sleeve extending device, belonging to an extending device connected with the tube. The utility model is characterized in that the utility model adopts the double sealing of a flexible rubber sleeve and fillers. The utility model has the advantages of reliable seal, low cost, less accuracy requirement, double sealing and reliable operation.

Description

A kind of double-sealing sleeve pipe expansion bend
The utility model relates to a kind of double-sealing sleeve pipe expansion bend, belongs to a kind of expansion device that is connected on the pipeline.
As can be known, its feature is to utilize liquid or gas in the pipeline to make the seal ring sealing from present sealed pipe expansion bend; It is improved than the sealing material of old-fashioned filler expansion bend from prior art, and the pressure of medium is converted into sealing load, makes it have superiority.Its deficiency is: the sealing material of this expansion bend is subjected to very big friction, thereby wearing and tearing are still very serious, during as sealing material wearing and tearing inequality, also can cause water leakage phenomenon.
The purpose of this utility model is a kind of double-sealing sleeve pipe expansion bend that provides avoiding above-mentioned deficiency of the prior art, and its feature is to adopt soft rubber sleeve pipe and filler double seal.Sealability is reliable.
The purpose of this utility model can reach by following measure:
Be with flexible pipe on conduit and the inner sleeve, one end of flexible pipe is fixed on the conduit, and the other end is fixed on the inner sleeve, and pipe clamp is that flexible pipe is fixed on inner sleeve and the conduit, in addition can be with glue bonding or heat treatment method flexible pipe and metal tube are connected and fixed, such two end interfaces are tight.Since flexible pipe to bear pressure very high, not fragile, so good seal performance, long service life.Tear loss for the accident that prevents flexible pipe, leak, establish a stuffing seal again, make it more safe and reliable in its outer end.
Working principle of the present utility model is that expansion bend is connected with pipeline, when the medium temperature that flows through pipeline raises, and the pipe expansion elongation, cover is to the expansion bend internal motion in the expansion bend, and when the medium temperature in the pipeline reduced, pipeline shrank, and inner sleeve outwards moves.
The accompanying drawing drawing is described as follows:
Fig. 1 is the sectional drawing of sleeve pipe expansion bend;
Fig. 2 is the pipe clamp detailed drawing.
Wherein: [1]-inner sleeve, [2]-stuffing box, [3]-particular fillers, [4]-syrup filling tip, [5]-conduit, [6]-outer sleeve, [7]-flexible pipe, [8]-pipe clamp.
The utility model advantage compared to existing technology is: requirement on machining accuracy is not high, and cost is low, good seal performance, Have the characteristic of double-layer seal, reliable.
Below in conjunction with accompanying drawing the utility model is described further:
Installation of the present utility model is that inner sleeve [1] is inserted in the conduit [5], flexible pipe [7] is enclosed within on conduit [5] and the inner sleeve [1] again, and be separately fixed on conduit [5] and the inner sleeve [1] with the two ends of pipe clamp [8] with flexible pipe [7], make it tight, (or be adhesively fixed with rubber liquid, or be adhesively fixed with heat treatment method).Above-mentioned connecting body is put into outer sleeve [6],, make it sealing with flange gasket with flange plate connecting duct [5] and outer sleeve [6].Then, establish a stuffing box [2] on the inner sleeve [1] in conduit [5] outside, particular fillers [3] is housed in the stuffing box [2], filler [3] is injected by syrup filling tip [4] by special tool, makes it to have the double seal characteristic.

Claims (4)

1. double-sealing sleeve pipe expansion bend, form by inner sleeve [1], stuffing box [2], particular fillers [3], syrup filling tip [4], conduit [5], outer sleeve [6], flexible pipe [7] and pipe clamp [8], it is characterized in that: be with flexible pipe [7] on conduit [5] and the inner sleeve [1], pipe clamp [8] is that flexible pipe [7] is fixed on inner sleeve [1] and the conduit [5], is provided with stuffing box [2] outside conduit [5].
2. expansion bend according to claim 1 is characterized in that: flexible pipe [7] can be selected gum sleeve and other soft material as required for use.
3. expansion bend according to claim 1 is characterized in that: flexible pipe [7] can be made into corrugated, also can make straight-tube shape.
4. expansion bend according to claim 1 is characterized in that: flexible pipe [7] is bonding with inner sleeve [1] and the available glue of conduit [5], and also the available heat processing method is connected and fixed.
CN 98213532 1998-03-23 1998-03-23 Double sealing sleeve extending device Expired - Fee Related CN2329829Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98213532 CN2329829Y (en) 1998-03-23 1998-03-23 Double sealing sleeve extending device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98213532 CN2329829Y (en) 1998-03-23 1998-03-23 Double sealing sleeve extending device

Publications (1)

Publication Number Publication Date
CN2329829Y true CN2329829Y (en) 1999-07-21

Family

ID=33967453

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 98213532 Expired - Fee Related CN2329829Y (en) 1998-03-23 1998-03-23 Double sealing sleeve extending device

Country Status (1)

Country Link
CN (1) CN2329829Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105971532A (en) * 2016-06-23 2016-09-28 北京东方新星石化工程股份有限公司 Casing expansion piece, coast drilling positioning system and coast drilling positioning method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105971532A (en) * 2016-06-23 2016-09-28 北京东方新星石化工程股份有限公司 Casing expansion piece, coast drilling positioning system and coast drilling positioning method
CN105971532B (en) * 2016-06-23 2018-04-13 北京东方新星石化工程股份有限公司 Casing expander, strand probing positioning system and strand probing localization method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee