CN202212923U - Pipe extractor - Google Patents
Pipe extractor Download PDFInfo
- Publication number
- CN202212923U CN202212923U CN2011203434875U CN201120343487U CN202212923U CN 202212923 U CN202212923 U CN 202212923U CN 2011203434875 U CN2011203434875 U CN 2011203434875U CN 201120343487 U CN201120343487 U CN 201120343487U CN 202212923 U CN202212923 U CN 202212923U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- supporting
- expanding
- bolt
- chunk
- 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
Links
- 239000007787 solid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- Supports For Pipes And Cables (AREA)
Abstract
The utility model provides a pipe extractor, and solves the problems of complex structure, unsatisfactory pipe extraction effect and the like in the conventional pipe extracting device. The pipe extractor comprises a bolt, a locking conical block, an expanding-and-supporting combined block, closing sleeves, a supporting sleeve and a nut with a pull ring, wherein the locking conical block is sleeved and inserted on the bolt in a way that a large-diameter surface faces a nut cap end; the expanding-and-supporting combined block is formed by abutting and combining a plurality of identical small expanding-and-supporting blocks; a conical through hole matched with the locking conical block in shape is axially formed at the center of the expanding-and-supporting combined block; the expanding-and-supporting combined block is in sleeve joint with the exterior of the locking conical block; the closing sleeve is sleeved outside the expanding-and-supporting combined block; a gap is reserved between the expanding-and-supporting combined block and the closing sleeves; the supporting sleeve is sleeved on the bolt through a central hole and supported on the expanding-and-supporting combined block; the diameter of the central hole on each closing sleeve is larger than the external diameter of the supporting sleeve; the internal diameter of the supporting sleeve is larger than the diameters of small holes in the conical through holes on the expanding-and-supporting combined block; and the nut with the pull ring is screwed and fixed on the bolt outside the supporting sleeve. The utility model has a simple structure and a favorable pipe extraction effect, thereby being worth popularizing and use.
Description
Technical field
The utility model belongs to a kind of tube drawing and uses device, is specially a kind of pipe extractor.
Background technology
General heat exchanger in use for some time, the metal tube in it is changed with regard to needing because of corrosion, all is that manual pick is changed with cutting method in the past; Afterwards in order to change conveniently; Designed a lot of pipe drawing devices, made convenient and swift that the work of changing metal tube becomes to a certain extent, but this type of pipe drawing device complex structure mostly; The tube drawing effect is undesirable, even also can damage pipeline owing to power is excessive.
Summary of the invention
The utility model purpose is the shortcoming that exists in the prior art in order to solve, and a kind of simple in structure, processing ease, durable in use, pipe extractor that the tube drawing effect is very good are provided.
The utility model is to adopt following technical scheme to realize:
A kind of pipe extractor comprises bolt, locking cone piece, expands the support chunk, closing sleeve, stop sleeve and the nut that is connected with draw ring, and the locking cone piece axially offers central through hole, and the locking cone piece overlaps inwardly with big diametral plane through central through hole and inserts on the bolt; Expand the support chunk and combine by some identical little expansion bracers butt joints, and the expansion of forming support chunk central shaft to form one with the block-shaped conical through-hole that matches of locking cone, expand and support chunk is socketed in the locking cone piece through conical through-hole outside; Expand support chunk outer cover and be provided with closing sleeve; Leave the gap between closing sleeve inwall and the expansion support chunk; Stop sleeve is placed on the bolt through the centre bore on it and is supported on and expands on the support chunk; The center bore of wherein offering on the closing sleeve is greater than the external diameter of stop sleeve, and the stop sleeve internal diameter is greater than the hole diameter that expands support chunk upper conical through hole; The nut of band draw ring is twisted solid on the outside bolt of stop sleeve.
The method for using of the utility model is following:
At first, the mouth of pipe is located in the expansion support chunk and the gap between the closing sleeve of this pipe extractor, is tightly supportted in pipeline mouth of pipe inwall even expand the support chunk, the closing sleeve chuck is in pipeline mouth of pipe outer wall; Then, slowly be screwed into the nut on the bolt, nut is owing to there is stop sleeve to support; So pressure has been passed to expansion support chunk through stop sleeve; Make and expand the pressure that moves in the oriented pipeline of support chunk, bolt then because being screwed into of nut can slowly be moved outside pipeline by drive locking cone piece, will make the locking cone piece and expand between the support chunk to form interaction force like this; Along with the further outer of locking cone piece moves, it is just increasing to expanding the radially outer squeezing action power of support chunk; Last locking cone piece just will be formed each the little expansion bracer that expands the support chunk and radially support greatly, compress the mouth of pipe that expands between support chunk and the closing sleeve with this, through the suspension ring on the nut, just can pipeline be extracted at last.
Further, the sidewall middle part of said expansion support chunk offers a circle groove, is connected with elastic collar in the groove.So just will form each the little expansion bracer elasticity that expands the support chunk and link together, be difficult for being scattered, thereby make the use of this pipeline mouth expander convenient.
Described expansion support chunk is to be combined by four identical little expansion bracer butt joints.The power of line up was more even when little expansion bracer was extended out, the enlarging better quality.
The utility model is simple in structure, processing ease, durable in use, with low cost, the tube drawing effect is very good, and is and of many uses, not only can be used for the tube drawing operation, to other aspects such as clamping of pipeline, be worth of widely use in the time of can also being used for such as the pipeline hole enlargement.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the use sketch map of the utility model.
Structural representation when Fig. 3 merges for the utility model expands the support chunk.
Fig. 4 expands the support chunk structural representation of awl piece when strutting that be locked for the utility model.
Among the figure: 1-bolt, 2-locking cone piece, 3-expand support chunk, the little expansion bracer of 3-1-, 4-closing sleeve, 5-stop sleeve, 6-nut, 7-suspension ring, 8-groove, 9-pipeline, 10-spring collar.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1; A kind of pipe extractor comprises bolt 1, locking cone piece 2, expands support chunk 3, closing sleeve 4, stop sleeve 5 and the nut 6 that is connected with draw ring 7; Locking cone piece 2 axially offers central through hole, and locking cone piece 2 overlaps inwardly with big diametral plane through central through hole and inserts on the bolt 1; Expand support chunk 3 and combine, and the expansion of forming support chunk 3 central shafts expand support chunk 3 is socketed in locking cone piece 2 through conical through-hole outside to forming a conical through-hole that matches with locking cone piece 2 shapes by some identical little expansion bracer 3-1 butt joints; Expand support chunk 3 outer cover and be provided with closing sleeve 4; Leave the gap between closing sleeve 4 inwalls and the expansion support chunk 3; Stop sleeve 5 is placed on the bolt 1 through the centre bore on it and is supported on and expands on the support chunk 3; The center bore of wherein offering on the closing sleeve 4 is greater than the external diameter of stop sleeve 5, and stop sleeve 5 internal diameters are greater than the hole diameter that expands support chunk 3 upper conical through holes; The nut 6 that is connected with draw ring 7 is twisted solid on the bolt 1 of stop sleeve 5 outsides.
Further, the sidewall middle part of said expansion support chunk 3 offers a circle groove 8, is connected with elastic collar 10 in the groove 8.So just will form each the little expansion bracer 3-1 elasticity that expands support chunk 3 and link together, be difficult for being scattered, thereby make the use of this pipeline mouth expander convenient.
Described expansion support chunk 3 is (like the Fig. 3,4) that combined by four identical little expansion bracer 3-1 butt joints.The power of line up was more even when little expansion bracer 3-1 was extended out, the enlarging better quality.
Claims (3)
1. pipe extractor; It is characterized in that: comprise bolt (1), locking cone piece (2), expand support chunk (3); Closing sleeve (4), stop sleeve (5) and the nut (6) that is connected with draw ring (7); Locking cone piece (2) axially offers central through hole, and locking cone piece (2) inserts on the bolt (1) towards nut end cover with big diametral plane through central through hole; Expanding support chunk (3) is combined by some identical little expansion bracer (3-1) butt joints; And the expansion of forming support chunk (3) central shaft expands support chunk (3) is socketed in locking cone piece (2) through conical through-hole outside to forming a conical through-hole that matches with locking cone piece (2) shape; Expand support chunk (3) outer cover and be provided with closing sleeve (4); Leave the gap between closing sleeve (4) inwall and the expansion support chunk (3); Stop sleeve (5) is placed in bolt (1) through the centre bore on it and goes up and be supported on the expansion support chunk (3); The center bore of wherein offering on the closing sleeve (4) is greater than the external diameter of stop sleeve (5), and stop sleeve (5) internal diameter is greater than the hole diameter that expands support chunk (3) upper conical through hole; The nut (6) that is connected with draw ring (7) is twisted solid on the outside bolt (1) of stop sleeve (5).
2. pipe extractor according to claim 1 is characterized in that: the sidewall middle part of described expansion support chunk (3) offers a circle groove (8), is connected with elastic collar (10) in the groove (8).
3. pipe extractor according to claim 1 and 2 is characterized in that: described expansion support chunk (3) is to be combined by four identical little expansion bracer (3-1) butt joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203434875U CN202212923U (en) | 2011-09-14 | 2011-09-14 | Pipe extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203434875U CN202212923U (en) | 2011-09-14 | 2011-09-14 | Pipe extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202212923U true CN202212923U (en) | 2012-05-09 |
Family
ID=46012193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203434875U Expired - Fee Related CN202212923U (en) | 2011-09-14 | 2011-09-14 | Pipe extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202212923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753486A (en) * | 2014-01-09 | 2014-04-30 | 上海交通大学 | Pipe withdrawing tongs |
-
2011
- 2011-09-14 CN CN2011203434875U patent/CN202212923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753486A (en) * | 2014-01-09 | 2014-04-30 | 上海交通大学 | Pipe withdrawing tongs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20140914 |
|
| EXPY | Termination of patent right or utility model |