CN206317019U - It is broken pipe joint screwing-out device - Google Patents

It is broken pipe joint screwing-out device Download PDF

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Publication number
CN206317019U
CN206317019U CN201621200205.5U CN201621200205U CN206317019U CN 206317019 U CN206317019 U CN 206317019U CN 201621200205 U CN201621200205 U CN 201621200205U CN 206317019 U CN206317019 U CN 206317019U
Authority
CN
China
Prior art keywords
mandrel
pipe joint
telescopic block
sleeve
machined
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
CN201621200205.5U
Other languages
Chinese (zh)
Inventor
刘峰
王琪
陈繁敏
董德宝
郭树旺
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.)
China University of Petroleum East China
Original Assignee
China University of Petroleum East China
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 China University of Petroleum East China filed Critical China University of Petroleum East China
Priority to CN201621200205.5U priority Critical patent/CN206317019U/en
Application granted granted Critical
Publication of CN206317019U publication Critical patent/CN206317019U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is to be broken pipe joint screwing-out device, including mandrel, sleeve and the part of telescopic block three;The mandrel main part is machined with external screw thread, and left end is taper, and right-hand member section is regular hexagon, and mandrel is located at sleeve inner;Sleeve left side decile is machined with 3 grooves, coordinates with telescopic block, is regular hexagon on the outside of right-hand member section, inside is machined with internal thread;The telescopic block is stuck in sleeve groove, is engaged inside telescopic block with the mandrel conical surface, and outside has tooth to be mutually engaged with fracture pipe joint endoporus.In use, with spanner rotary core shaft hexagonal part, being moved to the left mandrel, bullet promotes telescopic block outwards to expand, and stings tight fracture pipe joint endoporus, then with spanner turnbarrel hexagonal part, fracture pipe joint is screwed out from outer tube internal thread hole.The utility model is simple in construction, easy to operate, will not produce infringement to outer tube internal thread.

Description

It is broken pipe joint screwing-out device
Technical field:
The utility model is related to a kind of instrument, more particularly to a kind of fracture pipe joint screwing-out device.Belong to pipeline maintenance work Has class.
Background technology:
In the course of conveying of the liquids and gases such as water, oil, natural gas, the characteristics of there is mobility, easily reveal because of it, Pipeline transportation is a kind of extraordinary mode of movement.Because the joint of conveyance conduit is mostly using threaded connection, screw thread is in processing During there may be manufacturing deficiency, it is produced fracture in use or cargo handling process.Pumped (conveying) medium typically all has corrosion Property, more accelerate its fracture process.
At pipe joint after screw thread fracture, when especially joint dimension is smaller, screwed out relatively difficult.Use at present Method is:The Internal Pipe Thread of fracture is first sawn into several valves with saw blade, then plucked out again with other instruments;Or in disconnected pipe Conical objects are filled in, the object is then rotated, is screwed out.Former approach is less efficient, and external pipe thread may be produced Infringement;Later approach is directly plugged into using pyramidal structure, and frictional force is smaller, is difficult to screw out.
China quickly grew in recent years, and various demands constantly increase, and pipeline transportation is more universal, and screw thread breaks at pipe joint Split phenomenon more, efficiency high, good economy performance are needed during maintenance, infringement can not be produced to external pipe thread.
The content of the invention:
The purpose of this utility model is to be directed to the problem of pipe screw joint of fracture is screwed out into difficulty from outer tube internal thread, A kind of fracture pipe joint screwing-out device is provided.To realize object above, the technical solution of the utility model is:
It is broken pipe joint screwing-out device, it is characterised in that the screwing-out device structure includes mandrel, sleeve and telescopic block three Part;The mandrel main part is machined with external screw thread, and left end is taper, and right-hand member section is regular hexagon, and mandrel is located at sleeve It is internal;Sleeve left side decile is machined with 3 grooves, coordinates with telescopic block, is regular hexagon, inside processing on the outside of right-hand member section There is internal thread, coordinate with mandrel external screw thread, have certain space between sleeve and fracture pipe joint endoporus;The telescopic block is stuck in In sleeve groove, it is engaged inside telescopic block with the mandrel conical surface, outside has tooth to be mutually engaged with fracture pipe joint endoporus.
The telescopic block is arc-shaped with mandrel bullet matching part, is tooth with fracture pipe joint endoporus contact site Shape.
The bullet is taper, and mandrel is moved to the left drive bullet and promotes telescopic block outwards to expand.
The beneficial effects of the utility model are:It is simple in construction, easy to operate, efficiency high, good economy performance, telescopic block and interior disconnected Pipe contact performance is good, and frictional force is big, will not produce infringement to external pipe thread.
Brief description of the drawings:
Fig. 1:The utility model is broken pipe joint screwing-out device Standard figure;
Fig. 2:Fig. 1 A-A sectional views.
Symbol description:
1st, mandrel, 2, sleeve, 3, telescopic block, 4, outer tube, 5, interior disconnected pipe, 11, bullet, 12, mandrel hexagonal tack, 21, Sleeve hexagonal tack.
Embodiment:
The utility model is described in further detail with reference to the accompanying drawings and examples:
As shown in drawings, pipe joint screwing-out device, including mandrel (1), sleeve (2), telescopic block (3), bullet are broken (11), mandrel hexagonal tack (12) and sleeve hexagonal tack (21).
It is internal that the mandrel (1) is located at sleeve (2), with sleeve (2) using be threadedly coupled, sleeve (2) and interior disconnected pipe (5) it Between have certain space;The telescopic block (3) is stuck in sleeve (2) groove, telescopic block (3) inside and mandrel end bullet (11) It is engaged, outside tooth is mutually engaged with interior disconnected pipe (5);The bullet (11) is taper, is core positioned at mandrel (1) high order end A part for axle (1);The mandrel hexagonal tack (12) is prism-shaped, and section is regular hexagon, positioned at mandrel (1) low order end; It is regular hexagon on the outside of sleeve hexagonal tack (21) section, positioned at sleeve (2) low order end.
Mandrel (1) when in use, is first screw into sleeve (2) suitable position by the utility model fracture pipe joint screwing-out device Put, contact bullet (11) and telescopic block (3), then mandrel (1), sleeve (2), telescopic block (3) are put into interior disconnected pipe together (5) interior correct position;With spanner rotary core shaft hexagonal tack (12), it is moved to the left mandrel (1), bullet (11) promotes flexible Block (3) outwards expands, and stings disconnected pipe (5) in tight, then with spanner turnbarrel hexagonal tack (21), by interior disconnected pipe (5) from outer tube (4) screwed out in.
The utility model is illustrated by way of example above, but the utility model is not limited to above-mentioned specific implementation Example, all any change done based on the utility model or modification belong to the claimed scope of the utility model.

Claims (3)

1. it is broken pipe joint screwing-out device, it is characterised in that:The screwing-out device structure includes mandrel, sleeve and telescopic block three Point;The mandrel main part is machined with external screw thread, and left end is machined with bullet, and right-hand member section is regular hexagon, and mandrel is located at Sleeve inner;Sleeve left side decile is machined with 3 grooves, coordinates with telescopic block, is regular hexagon on the outside of right-hand member section, internal Internal thread is machined with, is coordinated with mandrel external screw thread, has certain space between sleeve and fracture pipe joint endoporus;The telescopic block It is stuck in sleeve groove, is engaged inside telescopic block with the mandrel conical surface, outside has tooth to be mutually engaged with fracture pipe joint endoporus.
2. fracture pipe joint screwing-out device according to claim 1, it is characterised in that:The telescopic block and mandrel bullet Matching part is arc-shaped, is tooth shape with fracture pipe joint endoporus contact site.
3. fracture pipe joint screwing-out device according to claim 1, it is characterised in that:The bullet is taper, mandrel Being moved to the left drive bullet promotes telescopic block outwards to expand.
CN201621200205.5U 2016-11-07 2016-11-07 It is broken pipe joint screwing-out device Expired - Fee Related CN206317019U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621200205.5U CN206317019U (en) 2016-11-07 2016-11-07 It is broken pipe joint screwing-out device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621200205.5U CN206317019U (en) 2016-11-07 2016-11-07 It is broken pipe joint screwing-out device

Publications (1)

Publication Number Publication Date
CN206317019U true CN206317019U (en) 2017-07-11

Family

ID=59262471

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621200205.5U Expired - Fee Related CN206317019U (en) 2016-11-07 2016-11-07 It is broken pipe joint screwing-out device

Country Status (1)

Country Link
CN (1) CN206317019U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188981A (en) * 2018-01-22 2018-06-22 西安科技大学 A kind of fracture pipe fitting retracts tool
CN108453670A (en) * 2018-03-17 2018-08-28 贺子阳 A kind of wire withdrawing machine
CN110253499A (en) * 2019-07-08 2019-09-20 镇江市凯越工具有限公司 It is a kind of to clamp disconnected screw with quickly removing device
CN110524405A (en) * 2019-09-18 2019-12-03 安徽多邦珩磨技术有限公司 A kind of honing feeding device and its method for fetching

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188981A (en) * 2018-01-22 2018-06-22 西安科技大学 A kind of fracture pipe fitting retracts tool
CN108453670A (en) * 2018-03-17 2018-08-28 贺子阳 A kind of wire withdrawing machine
CN110253499A (en) * 2019-07-08 2019-09-20 镇江市凯越工具有限公司 It is a kind of to clamp disconnected screw with quickly removing device
CN110524405A (en) * 2019-09-18 2019-12-03 安徽多邦珩磨技术有限公司 A kind of honing feeding device and its method for fetching

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170711

Termination date: 20171107