CN202914010U - Retreating type fishing hook - Google Patents
Retreating type fishing hook Download PDFInfo
- Publication number
- CN202914010U CN202914010U CN 201220474485 CN201220474485U CN202914010U CN 202914010 U CN202914010 U CN 202914010U CN 201220474485 CN201220474485 CN 201220474485 CN 201220474485 U CN201220474485 U CN 201220474485U CN 202914010 U CN202914010 U CN 202914010U
- Authority
- CN
- China
- Prior art keywords
- hook
- outer barrel
- urceolus
- fishing
- retreating
- 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 oil gas well underground fishing tool and particularly relates to a retreating type fishing hook. The hook comprises an upper connector, a hook rod and an outer barrel, the upper connector is connected with the hook rod, the outer barrel is sleeved outside the hook rod, an L-shaped retreating groove is arranged on the outer barrel, a pin on the hook rod is placed in the L-shaped retreating groove, the lower end of the hook rod is provided with a cam hook, a hole channel is arranged at the position on the outer barrel, the position on the outer barrel corresponds to the cam hook, and a guide cone is arranged at the lower end of the outer barrel. By means of the retreating type fishing hook, fishing is achieved, automatic retreating of fish can be achieved, sticking accidents are prevented, and defects that sticking often happens during fishing of existing fishing hooks and tools can not freely retreat are overcome.
Description
Technical field:
The utility model relates to a kind of oil gas water well underground fishing tool, particularly a kind of reversible crowfoot.
Background technology:
Existing crowfoot is divided into dead hook and the hook of living, but dead hook and the hook crowfoot of living all are to move back the formula crowfoot.Use when salvaging wire rope, cable and can not move back crowfoot and have certain risk, in case junk is stuck, unfreezing is unsuccessful, and what must cause the accident is further complicated.
The utility model content:
The technical problems to be solved in the utility model provides a kind of reversible crowfoot, and this device has been realized salvaging and can freely withdrawing from fish, prevents the generation of lock of tool drilling.Overcome existing crowfoot and salvaged chance card, the deficiency that instrument can not freely withdraw from.
Technical solution adopted in the utility model is: a kind of reversible crowfoot comprises top connection, shank and urceolus; Top connection is connected with shank, and urceolus is sleeved on outside the shank, and urceolus is provided with L-type and withdraws from groove, and the pin on the shank places L-type to withdraw from the groove, and the shank lower end is provided with the cam hook, and the position of corresponding cam hook has the duct on the urceolus, and the urceolus lower end is provided with guide cone.
The beneficial effects of the utility model are: the utility model is provided with the mode that L-type withdraws from groove owing to having adopted at urceolus, thereby has salvaging and can freely withdraw from the function of fish, prevents the generation of lock of tool drilling.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Accompanying drawing is structural representation of the present utility model.
The specific embodiment:
As shown in drawings, a kind of reversible crowfoot comprises top connection 1, shank 3 and urceolus 5; Top connection 1 is connected with shank 3, and urceolus 5 is sleeved on outside the shank 3, and urceolus 5 is provided with L-type and withdraws from groove 2, the L-type that places pin on the shank 3 withdraws from the groove 2, shank 3 lower ends are provided with cam hook 4, and the position of corresponding cam hook 4 has the duct on the urceolus 5, and urceolus 5 lower ends are provided with guide cone 6.Shank 3 and urceolus 5 can relative displacements, change the position of pin L-type withdraws from groove 2 in by the rotation tubing string, reach the duty that changes cam hook 4, realize salvaging or withdraw from.
During salvaging, slowly transfer the reversible crowfoot in the time of the forward tubing string, this moment, pin was positioned at the axial location that L-type withdraws from groove 2, until fish enters urceolus 5, this moment, 4 withdrawals of cam hook did not contact with fish.Upper bailing hook, urceolus 5 relative shanks 3 are descending, and urceolus 5 band moving cam hooks 4 descending stretching out outside the cylinder contact realization with fish and salvage simultaneously.In the time that crowfoot need to being withdrawed from, transfer tubing string pressurization 1-2 ton.Urceolus 5 relative shanks 3 are up, and cam hook 4 is up withdrawal under the drive of urceolus 5, and counter-rotating tubing string 0.5-1 circle makes pin enter the radial position that L-type withdraws from groove 2.The upper lifting pipe post, urceolus 5 is maintained static by pin with the position of shank 3, and cam hook 4 does not contact with fish, and the upper lifting pipe post namely can withdraw from fishing tool smoothly.
Be understandable that, above about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (1)
1. a reversible crowfoot comprises top connection (1), shank (3) and urceolus (5); It is characterized in that: top connection (1) is connected with shank (3), urceolus (5) is sleeved on outside the shank (3), the L-type that is provided with urceolus (5) withdraws from groove (2), the L-type that places pin on the shank (3) withdraws from the groove (2), shank (3) lower end is provided with cam hook (4), the position of the upper corresponding cam hook (4) of urceolus (5) has the duct, and urceolus (5) lower end is provided with guide cone (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474485 CN202914010U (en) | 2012-09-17 | 2012-09-17 | Retreating type fishing hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474485 CN202914010U (en) | 2012-09-17 | 2012-09-17 | Retreating type fishing hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914010U true CN202914010U (en) | 2013-05-01 |
Family
ID=48162331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220474485 Expired - Fee Related CN202914010U (en) | 2012-09-17 | 2012-09-17 | Retreating type fishing hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914010U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953306A (en) * | 2014-05-20 | 2014-07-30 | 中煤特殊凿井有限责任公司 | Large-caliber bit fisher |
| CN105257233A (en) * | 2015-10-20 | 2016-01-20 | 中国石油天然气股份有限公司 | Hydraulic anti-drop cable fishing tool |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
-
2012
- 2012-09-17 CN CN 201220474485 patent/CN202914010U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953306A (en) * | 2014-05-20 | 2014-07-30 | 中煤特殊凿井有限责任公司 | Large-caliber bit fisher |
| CN103953306B (en) * | 2014-05-20 | 2016-09-07 | 中煤特殊凿井有限责任公司 | A kind of large diameter bit fisher |
| CN105257233A (en) * | 2015-10-20 | 2016-01-20 | 中国石油天然气股份有限公司 | Hydraulic anti-drop cable fishing tool |
| CN105257233B (en) * | 2015-10-20 | 2018-01-05 | 中国石油天然气股份有限公司 | Hydraulic anti-drop cable fishing tool |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20130917 |