CN204532181U - A kind of expansion pipe hanging connecting device - Google Patents
A kind of expansion pipe hanging connecting device Download PDFInfo
- Publication number
- CN204532181U CN204532181U CN201520046320.0U CN201520046320U CN204532181U CN 204532181 U CN204532181 U CN 204532181U CN 201520046320 U CN201520046320 U CN 201520046320U CN 204532181 U CN204532181 U CN 204532181U
- Authority
- CN
- China
- Prior art keywords
- expansion
- cylindrical portion
- conus
- conus portion
- expansion tube
- 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 discloses a kind of expansion pipe hanging connecting device, comprise sleeve pipe, in described sleeve pipe, be socketed with expansion tube, in described expansion tube, be provided with vertical motion in expansion tube, and expansion tube is carried out the expansion member that expands; Described expansion member comprises expansion member body, and described expansion member body has the first conus portion, the first cylindrical portion, the second conus portion and the second cylindrical portion from top to bottom successively; The diameter of described first cylindrical portion is identical with the maximum gauge of the first conus portion; The diameter of described second cylindrical portion is identical with the maximum gauge of the second conus portion; Diametrically increasing gradually near the direction of the first cylindrical portion of first conus portion; Diametrically increasing gradually away from the direction of the first cylindrical portion of second conus portion.
Description
Technical field
The utility model relates to a kind of petroleum machinery parts, particularly a kind of expansion pipe hanging connecting device.
Background technology
Expansion tube is a kind of metal steel pipe be made up of special material, had good plasticity, when expansion tube is for subsidizing sleeve pipe, first enter in casing damaged well by under the expansion tube of small diameter, under the effect of mechanical force or hydraulic coupling, make expansion tube that overall plastic expansion occur, be close on the internal surface of sleeve pipe of pit shaft, thus realize grappling and sealing.
Existing suspension connection device, due to the restriction of its structure, make in Completion Operations, expansion tube once expands, and easily causes the damage of expansion tube, causes completion poor effect, is not suitable for using.
Summary of the invention
Problem to be solved in the utility model is to provide for the deficiencies in the prior art, provides a kind of expansion pipe hanging connecting device, and this expansion pipe hanging connecting device is not easy to damage expansion tube, and completion is effective.
For solving the problem, the technical scheme that the utility model adopts is:
A kind of expansion pipe hanging connecting device, comprises sleeve pipe, is socketed with expansion tube in described sleeve pipe, be provided with vertical motion in expansion tube in described expansion tube, and expansion tube is carried out the expansion member that expands;
Described expansion member comprises expansion member body, and described expansion member body has the first conus portion, the first cylindrical portion, the second conus portion and the second cylindrical portion from top to bottom successively;
The diameter of described first cylindrical portion is identical with the maximum gauge of the first conus portion; The diameter of described second cylindrical portion is identical with the maximum gauge of the second conus portion; Diametrically increasing gradually near the direction of the first cylindrical portion of first conus portion; Diametrically increasing gradually away from the direction of the first cylindrical portion of second conus portion.
Below the further improvement to technique scheme:
Described first conus portion evenly has several guiding grooves around the first conus portion axis, described first cylindrical portion evenly has several the second guiding grooves around the axis of the first cylindrical portion.
The bottom of described expansion member is provided with piston, and the bottom thread of expansion tube is connected with the end and blocks up.
The utility model, structure is simple, easy to use, can enter reexpansion to expansion tube, and the first conus portion carries out first time tentatively expansion to expansion tube, and the setting of guiding groove, reduces resistance during expansion; Second conus portion carries out second time to expansion tube and expands.
Practical the utility model carries out completion effect, and the spoilage of expansion tube drops to 0.1%, greatly improves the success rate of completion, improves operating efficiency.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of a kind of expansion pipe hanging connecting device of the utility model;
Accompanying drawing 2 is the sectional view of expansion member;
Accompanying drawing 3 is the structural representation of expansion member.
In figure:
1-sleeve pipe; 2-expansion tube; 3-expansion member connecting rod; 4-expansion member; 41-guiding groove; 42-through hole; 43-secondary boot groove; 44-expansion member body; 45-second conus portion; 46-first cylindrical portion; 47-first conus portion; 48-second cylindrical portion; 5-piston; Stifled at the bottom of 6-.
Detailed description of the invention
Embodiment, as shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, a kind of expansion pipe hanging connecting device, comprise sleeve pipe 1, expansion tube 2 is socketed with in described sleeve pipe 1, be socketed with expansion member connecting rod 3 in described expansion tube 2, expansion member connecting rod 3 be connected with can in expansion tube 2 vertical motion, and expansion tube is carried out the expansion member 4 that expands.
Described expansion member 4 comprises expansion member body 44, described expansion member body 44 has from top to bottom successively the first conus portion 47, first cylindrical portion 46, second conus portion 45 and the second cylindrical portion 48.
The diameter of described first cylindrical portion 46 is identical with the maximum gauge of the first conus portion 47; The diameter of described second cylindrical portion 48 is identical with the maximum gauge of the second conus portion 45; Diametrically increasing gradually near the direction of the first cylindrical portion 46 of first conus portion 47; Diametrically increasing gradually away from the direction of the first cylindrical portion 46 of second conus portion 48.
Described first conus portion 47 evenly has several guiding grooves 41 around the first conus portion 47 axis, and the axis around the first cylindrical portion 46 in described first cylindrical portion 46 evenly has several the second guiding grooves 43.
The bottom of described expansion member 4 is provided with piston 5, and the bottom thread of expansion tube 2 is connected with the end stifled 6.
The utility model, structure is simple, easy to use, can enter reexpansion to expansion tube 2, and the first conus portion 47 pairs expansion tube carries out first time tentatively expansion, and the setting of guiding groove 41, reduces resistance during expansion; Second conus portion 45 pairs expansion tube carries out second time and expands.
Practical the utility model carries out completion effect, and the spoilage of expansion tube drops to 0.1%, greatly improves the success rate of completion, improves operating efficiency.
Claims (3)
1. an expansion pipe hanging connecting device, comprise sleeve pipe (1), expansion tube (2) is socketed with in described sleeve pipe (1), be provided with expansion tube (2) interior vertical motion in described expansion tube (2), and expansion tube carried out the expansion member (4) that expands;
Described expansion member (4) comprises expansion member body (44), described expansion member body (44) has from top to bottom successively the first conus portion (47), the first cylindrical portion (46), the second conus portion (45) and the second cylindrical portion (48);
The diameter of described first cylindrical portion (46) is identical with the maximum gauge of the first conus portion (47); The diameter of described second cylindrical portion (48) is identical with the maximum gauge of the second conus portion (45); Diametrically increasing gradually near the direction of the first cylindrical portion (46) of first conus portion (47); Diametrically increasing gradually away from the direction of the first cylindrical portion (46) of second conus portion (48).
2. a kind of expansion pipe hanging connecting device as claimed in claim 1, it is characterized in that: described first conus portion (47) evenly has several guiding grooves (41) around the first conus portion (47) axis, described first cylindrical portion (46) evenly has several the second guiding grooves (43) around the axis of the first cylindrical portion (46).
3. a kind of expansion pipe hanging connecting device as claimed in claim 2, is characterized in that: the bottom of described expansion member (4) is provided with piston (5), and the bottom thread of expansion tube (2) is connected with the end stifled (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046320.0U CN204532181U (en) | 2015-01-23 | 2015-01-23 | A kind of expansion pipe hanging connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046320.0U CN204532181U (en) | 2015-01-23 | 2015-01-23 | A kind of expansion pipe hanging connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204532181U true CN204532181U (en) | 2015-08-05 |
Family
ID=53746204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520046320.0U Expired - Fee Related CN204532181U (en) | 2015-01-23 | 2015-01-23 | A kind of expansion pipe hanging connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204532181U (en) |
-
2015
- 2015-01-23 CN CN201520046320.0U patent/CN204532181U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20210123 |