CN2448527Y - Pipe puller - Google Patents
Pipe puller Download PDFInfo
- Publication number
- CN2448527Y CN2448527Y CN 00261729 CN00261729U CN2448527Y CN 2448527 Y CN2448527 Y CN 2448527Y CN 00261729 CN00261729 CN 00261729 CN 00261729 U CN00261729 U CN 00261729U CN 2448527 Y CN2448527 Y CN 2448527Y
- Authority
- CN
- China
- Prior art keywords
- positioning screw
- nut
- screw thread
- pipe
- splicing sleeve
- 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
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a pipe extractor. The utility model is characterized in that the front part of a positioning screw rod forms a circular-table body, the outer part is provided with an agnail screw thread, the rear part is a cylinder with an outer screw thread, a force-enforcing nut is arranged at the upper part, and the tail end forms a cube. A support sleeve is screwed and sheathed on the outer part of the positioning screw rod, a spring check ring at the tail end is embedded in an inner cavity of the force-enforcing nut, and a rolling boosting bearing is arranged between the support sleeve and a contact face of the force-enforcing nut. The pipe extractor has the advantages of reasonable design, simple structure, labour saving, time saving, and convenient operation; pipe-extraction efficiency can be improved obviously.
Description
The utility model belongs to replacing, the repair outfit that is used for all kinds of heat exchanger metal tubes.It exactly is a kind of pipe extractor.
The heat radiating metal pipe of installing on the pressure vessel end plate often needs to change because of corroding, and generally is to take off the pipe that has damaged by the method for artificial employing cutting, changes new pipe again.Chang Yi damages the pipe hole on the end plate or makes its distortion and influence the sealing of container in operating process.The applying date is on February 21st, 94, the patent No. is that 94225882.7 pipe extractor has solved above-mentioned defective, but directly contact with the support set of bolt outside owing to pull out six for the square nuts at hook bolt rear portion, operating personnel are when rotating with the spanner gusset is moving to nut, and two contact-making surfaces are close together, frictional resistance is quite big, therefore, take a lot of work, time-consuming, the effort, simultaneously, because friction effect makes the breaking-up easy to wear on contact-making surface of two workpiece.
The purpose of this utility model provide a kind of laborsaving, save time, easy to use, the pipe extractor that tube drawing efficient significantly improves.
The purpose of this utility model is realized by following technical scheme.
The utility model is made up of positioning screw, splicing sleeve, thrust bearing and afterburning nut, it is characterized in that:
A, positioning screw front portion are Rotary-table, its outer hangnail screw thread that is provided with, and the rear portion is for being with externally threaded cylinder, and afterburning nut is adorned thereon, and end is positive tetragonal body;
B, splicing sleeve twist and are placed in outside the positioning screw, are embedded in afterburning nut intracavity by the check ring of end, between splicing sleeve and afterburning nut contact-making surface the rolling thrust bearing are housed.
The anterior hangnail screw thread of positioning screw and the external screw thread joint at rear portion have a circular hole, are inserted with alignment pin in it.The splicing sleeve front end is provided with one and regulates cushion cover.
During use, the front end of positioning screw is inserted in the metal tube to be pulled out, hold splicing sleeve, screw afterburning nut with spanner, make the hangnail screw thread of positioning screw front portion attack inner wall of metal tube, pipe is held, tighten afterburning nut again, splicing sleeve is held out against on end plate, then metal tube is extracted from plate hole.With spanner afterburning nut is unclamped again, positioning screw is resetted, catch metal tube, clamp the tetragonal body of positioning screw end, make its inhour rotation, make the hangnail screw thread of positioning screw front portion withdraw from inner wall of metal tube, take off pipe extractor with spanner.
The utility model has the advantages that reasonable in design, simple in structure, thereby reduce friction between workpiece effectively, tube drawing efficient significantly improves, and laborsaving, save time, easy to use.
Fig. 1 is the utility model structural representation.
By the following examples, in conjunction with the accompanying drawings, the utility model is done to describe further.
Embodiment 1:
Referring to accompanying drawing, positioning screw 1 is processed into the front portion is Rotary-table, the hangnail screw thread is arranged outside it, the rear portion is for being with externally threaded cylinder, and afterburning nut 4 is adorned thereon, and end is positive tetragonal body.A circular hole 6 is opened in hangnail screw thread and external screw thread joint, is inserted with alignment pin 7 in it.Splicing sleeve 2 twisted are placed in outside the positioning screw 1, be embedded in afterburning nut 4 inner chambers, between splicing sleeve 2 and afterburning nut 4 contact-making surfaces rolling thrust bearing 3 is housed by the check ring 5 of end.Splicing sleeve 2 front ends have one to regulate cushion cover 8.
Claims (3)
1, a kind of pipe extractor is made up of positioning screw (1), splicing sleeve (2), thrust bearing (3) and afterburning nut (4), it is characterized in that:
A, positioning screw (1) front portion are Rotary-table, are provided with the hangnail screw thread outside it, and the rear portion is for being with externally threaded cylinder, and afterburning nut (4) is adorned thereon, and end is positive tetragonal body:
B, splicing sleeve (2) twist and are placed in outside the positioning screw (1), are embedded in afterburning nut (4) inner chamber by the check ring (5) of end, between splicing sleeve (2) and afterburning nut (4) contact-making surface rolling thrust bearing (3) are housed.
2, pipe extractor according to claim 1 is characterized in that: the anterior hangnail screw thread of described positioning screw (1) and the external screw thread joint at rear portion have a circular hole (6), are inserted with alignment pin (7) in it:
3, pipe extractor according to claim 1 is characterized in that: described splicing sleeve (2) front end is provided with one and regulates cushion cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261729 CN2448527Y (en) | 2000-11-28 | 2000-11-28 | Pipe puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261729 CN2448527Y (en) | 2000-11-28 | 2000-11-28 | Pipe puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2448527Y true CN2448527Y (en) | 2001-09-19 |
Family
ID=33617163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00261729 Expired - Fee Related CN2448527Y (en) | 2000-11-28 | 2000-11-28 | Pipe puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2448527Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110340841A (en) * | 2019-06-24 | 2019-10-18 | 郑凤荣 | A kind of bottom bracket axle dismantling device |
-
2000
- 2000-11-28 CN CN 00261729 patent/CN2448527Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110340841A (en) * | 2019-06-24 | 2019-10-18 | 郑凤荣 | A kind of bottom bracket axle dismantling device |
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Legal Events
| 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 |