CN203515648U - Double-hole pipe special for hole packer - Google Patents
Double-hole pipe special for hole packer Download PDFInfo
- Publication number
- CN203515648U CN203515648U CN201320552580.6U CN201320552580U CN203515648U CN 203515648 U CN203515648 U CN 203515648U CN 201320552580 U CN201320552580 U CN 201320552580U CN 203515648 U CN203515648 U CN 203515648U
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- China
- Prior art keywords
- hole
- double
- slip casting
- passage
- packer
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Abstract
The utility model discloses a double-hole pipe special for a hole packer. A pumping channel (6) and a grouting channel (7) are arranged in the double-hole pipe (5), and the inner wall of the double-hole pipe has a certain thickness. The double-hole pipe simplifies the structure of the hole packer, integrates the pumping channel and the grouting channel, overcomes the defects that an additional grouting channel needs to be arranged in the prior art, the size is large, and the structure is complex, makes the hole packer be processed more conveniently, and has the advantages of being low in cost, beautiful in appearance, simple in structure and practical.
Description
Technical field
The utility model relates to a kind of gas pumping double-hole tube, belongs to colliery hole packer manufacture field.
background technology
Existing gas pumping tubing only has an extraction passage, while using common drainage tube processing hole packer, need to outside common drainage tube, arrange a Grouting Pipe, cause overall dimensions to become large, in the softer coal bed drilling of ature of coal, the easy collapse hole of holing, is not easy to insert in boring, and adopts the hole packer processing technology of common drainage tube processing complicated.Summary of the invention
For the shortcoming of prior art, the purpose of this utility model is to provide a kind of gas pumping double-hole tube that integrates extraction passage, slip casting passage.
The utility model is to solve the problems of the technologies described above adopted technical scheme as described below:
A hole packer Special double-hole pipe arranges an extraction passage in double-hole tube, a slip casting passage, and the inwall of described double-hole tube has certain thickness.
Further, the cross-sectional area of extraction passage is greater than the cross-sectional area of slip casting passage.
Further, the cross section of described slip casting passage is circle, ellipse or triangle etc., described extraction channel setting remaining space except slip casting passage in double-hole tube.
Further again, the cross section of described double-hole tube is circle, ellipse or rectangle.
The beneficial effects of the utility model are as follows: the utility model has been simplified hole packer structure, integrate extraction passage, slip casting passage, overcome and in prior art, needed to arrange in addition slip casting passage, large, the baroque shortcoming of volume, make the processing of hole packer more convenient, there is cost lower, feature handsome in appearance, simple in structure, practical.
accompanying drawing explanation
Fig. 1 is double-hole tube schematic diagram.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described.
A hole packer Special double-hole pipe, at interior 6, one the slip casting passages 7 of an extraction passage that arrange of double-hole tube 5, the inwall of described double-hole tube has certain thickness.
The cross-sectional area of extraction passage 6 is greater than the cross-sectional area of slip casting passage 7.
The cross section of described slip casting passage 7 is circle, ellipse or triangle, and described extraction passage 6 is arranged on the remaining space except slip casting passage 7 in double-hole tube.
The cross section of described double-hole tube is circle, ellipse or rectangle.
In one embodiment, the cross section of the utility model hole packer Special double-hole pipe is circular, slip casting passage 7 and extraction passage 6 take whole double-hole tube, slip casting passage 7 be shaped as ellipse, extraction passage 6 is arranged on the remaining space outside slip casting passage 7, and double-hole tube 5 has the wall thickness of some strength.
The utility model has been simplified hole packer structure, integrate extraction passage, slip casting passage, overcome and in prior art, needed to arrange in addition slip casting passage, large, the baroque shortcoming of volume, make the processing of hole packer more convenient, there is cost lower, feature handsome in appearance, simple in structure, practical.
It should be noted that; above-mentioned specific embodiment is only exemplary; under above-mentioned instruction of the present utility model; those skilled in the art can on the basis of above-described embodiment, carry out various improvement and distortion (such as by the body of gate cabin, be kept above containment internal pressure become keep in the body of cabin lower than the negative pressure outside containment etc.), and these improvement or distortion all drop in protection domain of the present utility model.It will be understood by those skilled in the art that specific descriptions are above in order to explain the purpose of this utility model, not for limiting the utility model.Protection domain of the present utility model is limited by claim and equivalent thereof.
Claims (4)
1. a hole packer Special double-hole pipe, is characterized in that, an extraction passage (6) is set in double-hole tube (5), a slip casting passage (7), and the inwall of described double-hole tube has certain thickness.
2. hole packer Special double-hole pipe as claimed in claim 1, is characterized in that, the cross-sectional area of extraction passage (6) is greater than the cross-sectional area of slip casting passage (7).
3. hole packer Special double-hole pipe as claimed in claim 2, is characterized in that, the cross section of described slip casting passage (7) is circle, ellipse or triangle, and described extraction passage (6) is arranged on the remaining space except slip casting passage (7) in double-hole tube.
4. hole packer Special double-hole pipe as claimed in claim 3, is characterized in that, the cross section of described double-hole tube is circle, ellipse or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320552580.6U CN203515648U (en) | 2013-09-06 | 2013-09-06 | Double-hole pipe special for hole packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320552580.6U CN203515648U (en) | 2013-09-06 | 2013-09-06 | Double-hole pipe special for hole packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515648U true CN203515648U (en) | 2014-04-02 |
Family
ID=50374593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320552580.6U Expired - Fee Related CN203515648U (en) | 2013-09-06 | 2013-09-06 | Double-hole pipe special for hole packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515648U (en) |
-
2013
- 2013-09-06 CN CN201320552580.6U patent/CN203515648U/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: 20140402 Termination date: 20210906 |