CN203081386U - Spiral releasing overshot - Google Patents
Spiral releasing overshot Download PDFInfo
- Publication number
- CN203081386U CN203081386U CN 201320112621 CN201320112621U CN203081386U CN 203081386 U CN203081386 U CN 203081386U CN 201320112621 CN201320112621 CN 201320112621 CN 201320112621 U CN201320112621 U CN 201320112621U CN 203081386 U CN203081386 U CN 203081386U
- Authority
- CN
- China
- Prior art keywords
- spiral
- overshot
- slips
- cylindrical shell
- slip
- 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 - Lifetime
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Abstract
The utility model relates to a spiral releasing overshot which is mainly used for solving the problems that fished objects cannot be taken out from an existing overshot which is not dismantled and the existing overshot is inconvenient to operate. The spiral releasing overshot is characterized in that the internal surface of the middle part of an overshot body (2) consists of a plurality of reverse conical surfaces with the same shape; a basket type slip (4) is arranged in the left conical surfaces; a spiral slip (5) is respectively arranged in the right conical surfaces; a milling shoe (7) is arranged below the bottoms of the basket type slip (4) and the spiral slip (5); and the lower part of the overshot body (2) is connected with a guiding shoe (8). The fished objects can be taken out from the spiral releasing overshot which is not dismantled, so that the spiral releasing overshot is convenient to operate and has high efficiency.
Description
Technical field
The utility model relates to the field, oil field, a kind of specifically reversible spiral slip socket.
Background technology
In the petroleum drilling and mining operation, the situation in downhole tool or rod fall shaft bottom takes place sometimes, at this moment need the down-hole object is salvaged.The fishing socket that uses need be taken fishing socket apart and could be salvaged the thing taking-up after the down-hole object is salvaged out at present, inconvenient operation, and efficient is low.
Summary of the invention
Thing takes out, the deficiency of inconvenient operation in order to be salvaged after overcoming existing fishing socket and need taking apart, the utility model provides a kind of reversible spiral slip socket, this reversible spiral slip socket just need not taken apart and can salvage thing and take out, and is easy to operate, efficient is high.
The technical solution of the utility model is: a kind of reversible spiral slip socket, comprise top connection, the top connection bottom is connected with cylindrical shell, the inner surface at described cylindrical shell middle part is made up of the identical inverted cone surface of several shapes, and the left side conical surface is built-in with basket slips, be equipped with the spiral slips in the conical surface of right side respectively, the bottom of basket slips and spiral slips is equipped with milling shoe, and the cylindrical shell bottom is connected with guide shoe.
The utlity model has following beneficial effect: owing to take such scheme, cylinder inner surface is several inclined-planes, is equipped with the spiral slips on the inclined-plane, when getting by the salvaging thing, only need the spiral slips is upwards pushed away, make it make progress along the inclined-plane, outwards move simultaneously, just can unclamp and be salvaged thing, it is pulled down.Adopt this fishing socket, when pulling down, need not dismantle fishing socket by the salvaging thing, easy to operate, the efficient height.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
1-top connection among the figure, 2-cylindrical shell, 3-packing, the basket slips of 4-, 5-spiral slips, 6-control card, 7-milling shoe, 8-guide shoe, 9-sealing ring.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, a kind of reversible spiral slip socket, comprise top connection 1, top connection 1 bottom is connected with cylindrical shell 2, the top of cylindrical shell 2 inboards is provided with A type packing 3, and the inner surface at cylindrical shell 2 middle parts is made up of the identical inverted cone surface of several shapes, and promptly conical surface upper diameter is big, lower diameter is little, the shape of the conical surface is identical with the gingival cyst of mucous gland in the newborn button, but button is apart from increasing.The cylindrical shell 2 left side conical surfaces are built-in with basket slips 4, the conical surface of the external surface of basket slips 4 and cylindrical shell 2 inner surfaces matches, be equipped with spiral slips 5 respectively in the cylindrical shell 2 right side conical surfaces, respectively be equipped with a spiral slips 5 in each conical surface, the bottom of basket slips 4 and spiral slips 5 is equipped with milling shoe 7, and cylindrical shell 2 bottoms are connected with guide shoe 8.
This reversible spiral slip socket combines basket slips 4 with spiral slips 5, guaranteed the reliability of salvaging.And getting when being salvaged thing, only need with spiral slips 5 along on the inclined-plane in the cylindrical shell 2 to pushing away, spiral slips 5 promptly outwards moves along the inclined-plane, will be salvaged thing to unclamp, thereby it is pulled down.
Claims (1)
1. reversible spiral slip socket, comprise top connection (1), top connection (1) bottom is connected with cylindrical shell (2), it is characterized in that: the inner surface at described cylindrical shell (2) middle part is made up of the identical inverted cone surface of several shapes, and the left side conical surface is built-in with basket slips (4), be equipped with spiral slips (5) in the conical surface of right side respectively, the bottom of basket slips (4) and spiral slips (5) is equipped with milling shoe (7), and cylindrical shell (2) bottom is connected with guide shoe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112621 CN203081386U (en) | 2013-03-13 | 2013-03-13 | Spiral releasing overshot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112621 CN203081386U (en) | 2013-03-13 | 2013-03-13 | Spiral releasing overshot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081386U true CN203081386U (en) | 2013-07-24 |
Family
ID=48827236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320112621 Expired - Lifetime CN203081386U (en) | 2013-03-13 | 2013-03-13 | Spiral releasing overshot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203081386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677473A (en) * | 2020-03-02 | 2020-09-18 | 中煤科工集团西安研究院有限公司 | Rotary overshot for underground coal mine and overshot method |
-
2013
- 2013-03-13 CN CN 201320112621 patent/CN203081386U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677473A (en) * | 2020-03-02 | 2020-09-18 | 中煤科工集团西安研究院有限公司 | Rotary overshot for underground coal mine and overshot method |
| CN111677473B (en) * | 2020-03-02 | 2022-05-13 | 中煤科工集团西安研究院有限公司 | Rotatable fishing barrel used under coal mine and fishing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
|
| CX01 | Expiry of patent term |