CN201696804U - Expansion type leather cup - Google Patents

Expansion type leather cup Download PDF

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Publication number
CN201696804U
CN201696804U CN2010201710787U CN201020171078U CN201696804U CN 201696804 U CN201696804 U CN 201696804U CN 2010201710787 U CN2010201710787 U CN 2010201710787U CN 201020171078 U CN201020171078 U CN 201020171078U CN 201696804 U CN201696804 U CN 201696804U
Authority
CN
China
Prior art keywords
leather cup
expansion
shutoff
pipe joint
expansion ring
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
CN2010201710787U
Other languages
Chinese (zh)
Inventor
孙文成
汪开雄
台熙鑫
杨自力
刘晨东
周林元
邵泽义
吴�民
毛新东
崔振中
邓云峰
张子灵
张炜晔
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.)
XINJIANG SANYE PIPELINE TECHNOLOGY Co Ltd
Original Assignee
XINJIANG SANYE PIPELINE TECHNOLOGY 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 XINJIANG SANYE PIPELINE TECHNOLOGY Co Ltd filed Critical XINJIANG SANYE PIPELINE TECHNOLOGY Co Ltd
Priority to CN2010201710787U priority Critical patent/CN201696804U/en
Application granted granted Critical
Publication of CN201696804U publication Critical patent/CN201696804U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to the technical field of leather cups used for pressure stoppers for pipelines, in particular to an expansion type leather cup. The expansion type leather cup comprises a stopping leather cup, an expansion ring pipe, a pipe joint and a hydraulic pipeline, an outer side working surface of the stopping leather cup is provided with the expansion ring pipe and integrally connected with the same, an expansion ring cavity capable of leading the outer diameter of the expansion ring pipe to be enlarged after being injected with pressure liquid is arranged inside the expansion ring pipe, the pipe joint is fixedly mounted on the inner side of the stopping leather cup, a liquid guide hole is disposed in the stopping leather cup, one end of the liquid guide hole is communicated with the expansion ring cavity while the other end of the liquid guide hole is communicated with the inner end of the pipe joint, and the outer end of the pipe joint connected with the hydraulic pipeline can be communicated with a liquid outlet of an external hydraulic pump through the hydraulic pipeline. The expansion type leather cup is reasonable and compact in structure and convenient in use, enlarges contact pressure of the inner wall of a pipeline by means of adding the expansion ring pipe with the outer diameter capable of being enlarged after being injected with the pressure liquid on the stopping leather cup, increases sealing reliability, and has the advantages of low cost, reliable sealing and simple and convenient operation.

Description

The expansion leather cup
One, technical field
The utility model relates to the leather cup technical field that pipe pressurized plugging device uses, and is a kind of expansion leather cup.
Two, background technique
In the repairing of pipeline or when connecting, for the ease of quick organizing construction, often need immediately pipeline to be implemented shutoff, at present general normal employing pipeline machinery non-stop plugging technology is carried out shutoff to pipeline, because it has that feasibility is good, safety, economy, rapidly and efficiently, be usually used in jobs that requires special skills such as the maintenance of in-service pipeline and repairing.Pipeline machinery non-stop plugging, be exactly when pipe laying, install the shutoff threeway that has service hatch and sandwich valve in advance between two segment pipes, sandwich valve is installed in the outlet of service hatch, the sandwich valve of cutting out has sealed service hatch, makes pipeline can keep sealing proper functioning; When needs shutoff operation, on sandwich valve, install plugging device, be connected with a block head that can turn to by connecting rod on the plugging device, by connecting rod block head is sent to pipe interior from service hatch after opening sandwich valve, turn to behind the inwall of block head contact pipeline then, the inwall of block head after turning to by its anterior rubber cup and pipeline fits tightly and keeps sealing, and the inner chamber of pipeline blocks fully the most at last; When needs cancellation shutoff, only need block head to be mentioned withdrawal and make pipeline recover unimpeded by connecting rod, behind the last closed clip plate valve, can take off plugging device.But the rubber cup of existing plugging device has the following disadvantages in actual use: when pipeline is volute pipeline or vertical masonry joint pipeline, leak from the weld joint easily, cause the shutoff failure, iron dirt and iron filings in this Outer Tube also make the shutoff failure easily.
Three, summary of the invention
The utility model provides a kind of expansion leather cup, and it has solved the sealability problem not good, that leakage takes place or leakage takes place at the pipe welding seam place because of impurity easily of the rubber cup of existing plugging device.
The technical solution of the utility model realizes by following measure: a kind of expansion leather cup, comprise the shutoff leather cup, the expansion endless tube, pipe joint and hydraulic pipe line, the expansion endless tube is arranged on the outside working surface of shutoff leather cup and be connected as a single entity with the expansion endless tube, there is the expansion ring cavity that behind the injection pressure liquid expanding ring external diameter of pipe is increased the inside of expansion endless tube, the inboard of shutoff leather cup is installed with pipe joint, there is delivery hole the inside of shutoff leather cup, one end of delivery hole is connected with the expansion ring cavity, the other end of delivery hole is connected with the inner of pipe joint, and the outer end of pipe joint is connected with hydraulic pipe line and can be connected with the liquid outlet of extraneous oil hydraulic pump by hydraulic pipe line.
Be further optimization and/or improvements below to above-mentioned model utility technological scheme:
Above-mentioned hydraulic pipe line can be high pressure hose.
/ 2nd to 2/3rds of an above-mentioned expansion endless tube can be embedded in shutoff leather cup inside.
The utility model reasonable and compact in structure, easy to use, the expansion endless tube that it can increase by external diameter after increasing injection pressure liquid on the shutoff leather cup, the contact pressure of increase and inner-walls of duct has the advantages that to improve sealing reliability cost is low, sealing is reliable, easy and simple to handle.
Four, description of drawings
Accompanying drawing 1 is looked the sectional structure schematic representation for the master of the utility model most preferred embodiment.
Coding in the accompanying drawing is respectively: 1 is the shutoff leather cup, and 2 are the expansion endless tube, and 3 is pipe joint, and 4 is hydraulic pipe line, and 5 are the expansion ring cavity, and 6 is delivery hole.
Five, embodiment
The utility model is not subjected to following embodiment's restriction, can determine concrete mode of execution according to the technical solution of the utility model and actual conditions.
Below in conjunction with most preferred embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this expansion leather cup comprises shutoff leather cup 1, expansion endless tube 2, pipe joint 3 and hydraulic pipe line 4, expansion endless tube 2 is arranged on the outside working surface of shutoff leather cup 1 and be connected as a single entity with expansion endless tube 2, there is the expansion ring cavity 5 that behind the injection pressure liquid expansion endless tube 2 external diameters are increased the inside of expansion endless tube 2, the inboard of shutoff leather cup 1 is installed with pipe joint 3, there is delivery hole 6 inside of shutoff leather cup 1, one end of delivery hole 6 is connected with expansion ring cavity 5, the other end of delivery hole 6 is connected with the inner of pipe joint 3, and the outer end of pipe joint 3 is connected with hydraulic pipe line 4 and can be connected with the liquid outlet of extraneous oil hydraulic pump by hydraulic pipe line 4.By hydraulic pipe line 4 injection pressure liquid in expansion ring cavity 5, expansion endless tube 2 expands and the external diameter increase by extraneous oil hydraulic pump, makes the shutoff leather cup 1 and the contact pressure of inner-walls of duct increase, thereby has improved the reliability of shutoff.
Can according to actual needs above-mentioned expansion leather cup be made further optimization and/or improvements:
As shown in Figure 1, hydraulic pipe line 4 is a high pressure hose.High pressure hose can either bear big pressure, can not hinder the rotation of block head again.
As shown in Figure 1,1/2nd of expansion endless tube 2 to 2/3rds be embedded in shutoff leather cup 1 inside.This bar expansion endless tube 2 can assist shutoff leather cup 1 to do elastic strain preferably, makes that the sealing of shutoff leather cup 1 is more reliable.
Above technical characteristics has constituted most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristics according to actual needs, satisfies the demand of different situations.

Claims (3)

1. expansion leather cup, it is characterized in that comprising the shutoff leather cup, the expansion endless tube, pipe joint and hydraulic pipe line, the expansion endless tube is arranged on the outside working surface of shutoff leather cup and be connected as a single entity with the expansion endless tube, there is the expansion ring cavity that behind the injection pressure liquid expanding ring external diameter of pipe is increased the inside of expansion endless tube, the inboard of shutoff leather cup is installed with pipe joint, there is delivery hole the inside of shutoff leather cup, one end of delivery hole is connected with the expansion ring cavity, the other end of delivery hole is connected with the inner of pipe joint, and the outer end of pipe joint is connected with hydraulic pipe line and can be connected with the liquid outlet of extraneous oil hydraulic pump by hydraulic pipe line.
2. expansion leather cup according to claim 1 is characterized in that hydraulic pipe line is a high pressure hose.
3. expansion leather cup according to claim 1 and 2,1/2nd to 2/3rds of the endless tube that it is characterized in that expanding is embedded in shutoff leather cup inside.
CN2010201710787U 2010-04-27 2010-04-27 Expansion type leather cup Expired - Fee Related CN201696804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201710787U CN201696804U (en) 2010-04-27 2010-04-27 Expansion type leather cup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201710787U CN201696804U (en) 2010-04-27 2010-04-27 Expansion type leather cup

Publications (1)

Publication Number Publication Date
CN201696804U true CN201696804U (en) 2011-01-05

Family

ID=43398047

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201710787U Expired - Fee Related CN201696804U (en) 2010-04-27 2010-04-27 Expansion type leather cup

Country Status (1)

Country Link
CN (1) CN201696804U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106996901A (en) * 2017-03-23 2017-08-01 中国海洋石油总公司 Girth joint pressure test tool and pressure-measuring method in pipe
CN107060686A (en) * 2017-03-18 2017-08-18 中国海洋石油总公司 Plugging device in Hai Guanguan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107060686A (en) * 2017-03-18 2017-08-18 中国海洋石油总公司 Plugging device in Hai Guanguan
CN106996901A (en) * 2017-03-23 2017-08-01 中国海洋石油总公司 Girth joint pressure test tool and pressure-measuring method in pipe

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110105

Termination date: 20130427