CN202578608U - Overshot with slot - Google Patents
Overshot with slot Download PDFInfo
- Publication number
- CN202578608U CN202578608U CN 201220192533 CN201220192533U CN202578608U CN 202578608 U CN202578608 U CN 202578608U CN 201220192533 CN201220192533 CN 201220192533 CN 201220192533 U CN201220192533 U CN 201220192533U CN 202578608 U CN202578608 U CN 202578608U
- Authority
- CN
- China
- Prior art keywords
- window
- overshot
- cylindrical shell
- slot
- top connection
- 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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Abstract
The utility model relates to an overshot with slot. The overshot with slot comprises an upper joint, a cylinder body and a window tongue, wherein a drill pipe buckle is arranged at the upper part of the upper joint; the upper joint is connected with a drill stem through a drill pipe; the lower end of the upper joint is welded with the cylinder body; a trapeziform window is formed on the cylinder body; and a trapeziform window tongue is arranged on the trapeziform window and bent toward the inner chamber of the cylinder body. The overshot with slot has a simple structure, is convenient to operate and can be widely used in the field of fishing operation.
Description
Technical field
The utility model relates to a kind of fishing tool, particularly relates to a kind of overshot with slot.
Background technology
Overshot with slot is a kind ofly to be used for salvaging length short tubulose, column junk or to have the instrument that card is got the step junk; As, also can be split into the profile of tooth combination of tackling all problems at once in the overshot with slot bottom and use with the tubing nipple of box cupling, screen casing, logger weighted lever etc.At present, this tool construction is not too reasonable, causes long processing time, and the salvaging effect is bad, has influenced operating efficiency and work quality.
Summary of the invention
The utility model has overcome deficiency of the prior art, and overshot with slot a kind of simple in structure, easy to operate is provided.
In order to address the above problem, the utility model adopts following technical scheme:
Overshot with slot comprises top connection, cylindrical shell and window tongue, and top connection top is provided with the drilling rod button; Top connection is connected with drill string through the drilling rod button, and top connection lower end and cylindrical shell weld together, and cylindrical shell is provided with trapezoidal window; Trapezoidal window is provided with the trapezoid window tongue, and the trapezoid window tongue is crooked to cylinder lumen.
Have the trapezoidal window of 1～3 row on the described cylindrical shell, 3～4 trapezoid window tongues are arranged on same row's window.
The described position that is connected with top connection in the cylindrical shell upper end is provided with 4～6 apertures.
Compared with prior art, the beneficial effect of the utility model is:
The utility model is simple in structure, and cost is low, and is easy to operate, effectively raises fishing efficient.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Overshot with slot, as shown in Figure 1, comprise top connection 1, cylindrical shell 2 and window tongue 3; Top connection 1 top is provided with the drilling rod button, and top connection 1 is connected with drill string through the drilling rod button, and top connection 1 lower end and cylindrical shell 2 weld together; Cylindrical shell 2 is provided with trapezoidal window 4; Trapezoidal window 4 is provided with trapezoid window tongue 3, and trapezoid window tongue 3 is crooked to cylindrical shell 2 inner chambers, and the tip of the tongue internal diameter after the distortion is less than the junk minimum outer diameter.Have the trapezoidal window 4 of 1～3 row on the cylindrical shell 2,3～4 trapezoid window tongues 3 are arranged on same row's window 4.The position that cylindrical shell 2 upper ends are connected with top connection 1 is provided with 4～6 apertures, during welding as the plug welding hole, to increase the bonding strength of cylindrical shell 2 and top connection 1.
When fish gets into cylindrical shell 2 and heads into window tongue 3, window tongue 3 outer expanding, its bounce is tightly bitten the fish body, and window tongue 3 also firmly blocks step, promptly catches junk.
Claims (3)
1. overshot with slot is characterized in that, comprises top connection, cylindrical shell and window tongue; Top connection top is provided with the drilling rod button; Top connection is connected with drill string through the drilling rod button, and top connection lower end and cylindrical shell weld together, and cylindrical shell is provided with trapezoidal window; Trapezoidal window is provided with the trapezoid window tongue, and the trapezoid window tongue is crooked to cylinder lumen.
2. overshot with slot according to claim 1 is characterized in that, has the trapezoidal window of 1～3 row on the described cylindrical shell, and 3～4 trapezoid window tongues are arranged on same row's window.
3. overshot with slot according to claim 1 is characterized in that, the described position that is connected with top connection in the cylindrical shell upper end is provided with 4～6 apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192533 CN202578608U (en) | 2012-04-28 | 2012-04-28 | Overshot with slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192533 CN202578608U (en) | 2012-04-28 | 2012-04-28 | Overshot with slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202578608U true CN202578608U (en) | 2012-12-05 |
Family
ID=47248029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220192533 Expired - Fee Related CN202578608U (en) | 2012-04-28 | 2012-04-28 | Overshot with slot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202578608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758479A (en) * | 2014-01-30 | 2014-04-30 | 中国石油天然气股份有限公司 | Window-opening bailer for salvaging sucker rod |
-
2012
- 2012-04-28 CN CN 201220192533 patent/CN202578608U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758479A (en) * | 2014-01-30 | 2014-04-30 | 中国石油天然气股份有限公司 | Window-opening bailer for salvaging sucker rod |
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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: 20121205 Termination date: 20210428 |