CN210738512U - Fishing tool for fishing hole-shaped falling objects - Google Patents
Fishing tool for fishing hole-shaped falling objects Download PDFInfo
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- CN210738512U CN210738512U CN202020770058.5U CN202020770058U CN210738512U CN 210738512 U CN210738512 U CN 210738512U CN 202020770058 U CN202020770058 U CN 202020770058U CN 210738512 U CN210738512 U CN 210738512U
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- slip
- slips
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- fishing
- conical surface
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Abstract
The utility model discloses a fishing tool for fishing hole-shaped falling objects, which comprises slips, a central rod, a spring pressing cap and a spring; the slips are of a cylindrical structure, the side wall of each slip is formed by surrounding a plurality of tiles, the outer wall of each slip is provided with a tooth groove surface, and a clamping cavity and a conical cavity which are communicated with each other are arranged in each slip from top to bottom; the bottom of the central rod is provided with a ball head, the lower end of the central rod is provided with a conical surface part, and the conical surface part is matched with a conical cavity of the slip; the upper end of the central rod is in sliding connection with the slip, the conical cavity of the slip is attached to the conical surface of the central rod, and when the conical surface moves upwards to the tightening cavity, the tile is forced to expand outwards by the conical surface; the spring is pressed cap threaded connection and is in the top of well core rod, and the spring is located and presses the suit between cap and the slips on well core rod, through the cooperation of well core rod and slips, realizes shrink, the expansion of slips external diameter to get into the hole of junk when the slips is shrunk, the tooth flank bites the hole of junk during the slips expansion, realizes high efficiency and salvages.
Description
Technical Field
The utility model relates to a technical field is equipped to the oil, concretely relates to fishing tool for salvaging pass junk.
Background
The fishing tool is a special tool used in oilfield maintenance operation, is used for parts falling off during the construction and operation of an oil well, is a multipurpose fishing grab and a milling cutter for fishing falling objects with holes at present, the fishing grab hooks objects needing to be fished by tooth grooves and grabbing hooks, but is difficult to fish the smooth falling objects due to regular shapes, and the fishing tool with the milling cutter is used for driving the milling cutter to rotate so as to deform the falling objects needing to be fished and hook the falling objects on the milling cutter for fishing, so that the fishing efficiency is high, but the fishing falling objects are basically damaged by the milling cutter.
Disclosure of Invention
The utility model aims at providing a fishing tool for salvaging pass junk to the defect that prior art exists, its is rational in infrastructure, easy operation, can carry out quick salvage to the junk that has the pass.
The technical scheme of the utility model is that:
a fishing tool for fishing hole-shaped falling objects comprises slips, a central rod, a spring pressing cap and a spring;
the slip is of a cylindrical structure, the side wall of the slip is formed by surrounding a plurality of tiles, the outer wall of the slip is provided with a tooth groove surface, a tightening cavity and a conical cavity which are communicated are arranged in the slip from top to bottom, and the tightening cavity and the conical cavity are in smooth transition;
the bottom of the central rod is provided with a ball head, the lower end of the central rod is provided with a conical surface part, the conical surface part and the ball head are in smooth transition, and the conical surface part is matched with a conical cavity of the slip;
the upper end of the central rod penetrates through the top of the slip and is in sliding connection with the slip, a conical cavity of the slip is attached to the conical surface of the central rod, and when the conical surface moves upwards from the conical cavity to the tightening cavity, the conical surface forces the tile to expand outwards;
the spring pressing cap is in threaded connection with the top of the central rod, the spring is sleeved on the central rod, and two ends of the spring are respectively supported at the bottom of the spring pressing cap and the top of the slip.
Preferably, the outer side of the spring is sleeved with a metal corrugated pipe, and two ends of the metal corrugated pipe are respectively connected with the slip and the spring pressing cap.
Preferably, the side wall of the slip is formed by surrounding four tiles.
Preferably, the slips are made of carbon spring steel or alloy spring steel.
Preferably, the ball head is in an 1/2 ellipsoid structure.
Compared with the prior art, the utility model, have following advantage:
the utility model has the advantages of reasonable structure and simple operation, realize shrink, the expansion of slips external diameter through the cooperation of well core rod and slips to utilize the slips can be smooth when the shrink get into the junk downthehole, the outside tooth's socket face of slips is inseparable when recycling slips expansion catches the junk, thereby realizes high efficiency's salvage.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a center rod configuration;
FIG. 3 is a schematic view of the slip construction;
in the figure: 1. spring pressure cap, 2, spring, 3, well pole, 4, slips, 5, flute face, 6, bulb, 7, conical surface portion, 8, compel tight chamber, 9, toper chamber.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1 to 3, a fishing tool for fishing hole-type junk includes slips 4, a center rod 3, a spring cap 1, and a spring 2.
The slip 4 is integrally in a cylindrical structure, the side wall of the slip 4 is formed by surrounding a plurality of tiles, and the cylindrical slip 4 can be cut into a plurality of tiles.
The outer wall of slips 4 is equipped with tooth space face 5, and tooth space face 5 can be bellied zigzag or wave, is equipped with in slips 4 from top to bottom and compels tight chamber 8 and toper chamber 9, and compel tight chamber 8 and toper chamber 9 intercommunication and smooth transition.
The bottom of the center rod 3 is provided with a ball head 6, the lower end of the center rod 3 is provided with a conical surface part 7, the conical surface part 7 and the ball head 6 are in smooth transition, and the conical surface part 7 is matched with a conical cavity 9 of the slip 4.
4 tops of slips are equipped with the through-hole, and central rod 3's upper end passes behind the through-hole with slips 4 sliding connection, and the conical surface portion 7 laminating of conical cavity 9 and central rod 3 of slips 4 to when conical surface portion 7 by conical cavity 9 rebound to compel tight chamber 8, conical surface portion 7 forces the tile to expand outwards.
The spring pressing cap 1 is in threaded connection with the top of the central rod 3, the spring 2 is sleeved on the central rod 3, and two ends of the spring 2 are respectively supported at the bottom of the spring pressing cap 1 and the top of the slip 4.
The working process is as follows:
firstly, fixing a fishing tool at the bottom of an oil pipe or a rod piece for fishing, and then pushing the fishing tool into a shaft;
next, when the central rod 3 moves downwards, the ball head 6 guides the central rod to move towards the hole of the falling object;
next, the slips 4 move upwards under the action of the pressure force when entering the hole of the falling object, the spring 2 is in a continuous compression state, and meanwhile, the lower end of the slips 4 is stressed in the hole to shrink inwards and gradually enters the falling object hole;
next, after the whole slip 4 or the front end of the slip enters the hole-shaped falling object, stopping pushing the fishing tool downwards, enabling the slip 4 to move downwards under the action of the spring 2, enabling the conical surface part 7 and the conical cavity 9 to gradually recover the attaching state, and simultaneously enabling the tooth socket surface 5 on the outer side of the slip 4 to tightly bite the falling object;
and finally, lifting the fishing tool, and leading the conical surface part 7 to enter the packing cavity 8 along with the rising of the central rod 3, and forcing the tiles of the slips 4 to expand outwards, so that the hole-type junk is more tightly bitten to realize fishing.
The utility model has the advantages of being reasonable in structure and simple in operation, through the cooperation of well core rod 3 and slips 4, realize the shrink of 4 external diameters of slips, expansion to utilize slips 4 more smooth when the shrink get into the junk downthehole, 5 inseparable junk of catching in the tooth space of slips 4 outside when slips 4 expand simultaneously, thereby realize high efficiency's salvage.
Example 2
Referring to fig. 1 to 3, a fishing tool for fishing hole-type junk includes slips 4, a center rod 3, a spring cap 1, and a spring 2.
The whole slip 4 is of a cylindrical structure, the side wall of the slip 4 is formed by surrounding four tiles, and the cylindrical slip 4 can be cut into a structure of four tiles.
The outer wall of slips 4 is equipped with tooth space face 5, and tooth space face 5 can be bellied zigzag or wave, is equipped with in slips 4 from top to bottom and compels tight chamber 8 and toper chamber 9, and compel tight chamber 8 and toper chamber 9 intercommunication and smooth transition.
The bottom of well core rod 3 is equipped with bulb 6, and bulb 6 is 1/2 ellipsoid's structure, and well core rod 3's lower extreme is equipped with conical surface portion 7 to conical surface portion 7 and bulb 6 smooth transition, conical surface portion 7 and slips 4's toper chamber 9 adaptation.
4 tops of slips are equipped with the through-hole, and central rod 3's upper end passes behind the through-hole with slips 4 sliding connection, and the conical surface portion 7 laminating of conical cavity 9 and central rod 3 of slips 4 to when conical surface portion 7 by conical cavity 9 rebound to compel tight chamber 8, conical surface portion 7 forces the tile to expand outwards.
The spring pressing cap 1 is in threaded connection with the top of the central rod 3, the spring 2 is sleeved on the central rod 3, and two ends of the spring 2 are respectively supported at the bottom of the spring pressing cap 1 and the top of the slip 4.
The present embodiment is optimized based on embodiment 1 as follows:
the tile of the slips 4 is designed to be formed by four surrounding sheets, and the slips 4 are preferably made of carbon spring steel or alloy spring steel, so that the slips 4 contract inwards or expand outwards more smoothly;
the ball head 6 is designed into an 1/2 ellipsoid structure, so that the utility model is more convenient to be guided into a hole of a falling object;
in addition, the metal corrugated pipe sleeved outside the spring 2 can be used for packaging the spring 2 by matching the spring pressing cap 1 and the slip 4 through the metal corrugated pipe, and the spring is avoided the utility model discloses when fishing in a well in a complex environment, the spring 2 is blocked by sundries.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.
Claims (5)
1. A fishing tool for salvaging hole-type junk, which is characterized in that: comprises slips, a center rod, a spring pressing cap and a spring;
the slip is of a cylindrical structure, the side wall of the slip is formed by surrounding a plurality of tiles, the outer wall of the slip is provided with a tooth groove surface, a tightening cavity and a conical cavity which are communicated are arranged in the slip from top to bottom, and the tightening cavity and the conical cavity are in smooth transition;
the bottom of the central rod is provided with a ball head, the lower end of the central rod is provided with a conical surface part, the conical surface part and the ball head are in smooth transition, and the conical surface part is matched with a conical cavity of the slip;
the upper end of the central rod penetrates through the top of the slip and is in sliding connection with the slip, a conical cavity of the slip is attached to the conical surface of the central rod, and when the conical surface moves upwards from the conical cavity to the tightening cavity, the conical surface forces the tile to expand outwards;
the spring pressing cap is in threaded connection with the top of the central rod, the spring is sleeved on the central rod, and two ends of the spring are respectively supported at the bottom of the spring pressing cap and the top of the slip.
2. A fishing tool for fishing bore-type junk according to claim 1, wherein: the outside cover of spring has metal bellows, metal bellows's both ends are connected with slips and spring pressure cap respectively.
3. A fishing tool for fishing bore-type junk according to claim 1, wherein: the side wall of the slip is formed by four tiles in a surrounding mode.
4. A fishing tool for fishing bore-type junk according to claim 1, wherein: the slips are made of carbon spring steel or alloy spring steel.
5. A fishing tool for fishing bore-type junk according to claim 1, wherein: the ball head is in an 1/2 ellipsoid structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020770058.5U CN210738512U (en) | 2020-05-12 | 2020-05-12 | Fishing tool for fishing hole-shaped falling objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020770058.5U CN210738512U (en) | 2020-05-12 | 2020-05-12 | Fishing tool for fishing hole-shaped falling objects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210738512U true CN210738512U (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020770058.5U Active CN210738512U (en) | 2020-05-12 | 2020-05-12 | Fishing tool for fishing hole-shaped falling objects |
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| Country | Link |
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| CN (1) | CN210738512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999883A (en) * | 2020-09-10 | 2020-11-27 | 深圳市博铭维智能科技有限公司 | Stable supporting device for periscope |
-
2020
- 2020-05-12 CN CN202020770058.5U patent/CN210738512U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999883A (en) * | 2020-09-10 | 2020-11-27 | 深圳市博铭维智能科技有限公司 | Stable supporting device for periscope |
| CN111999883B (en) * | 2020-09-10 | 2023-12-01 | 深圳市博铭维智能科技有限公司 | Stable supporting device for periscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210111 Address after: No.171 Fenhe Road, Dongying District, Dongying City, Shandong Province 257091 Patentee after: Shandong Plateau oil and gas equipment Co.,Ltd. Address before: 257091 82 Fuqian street, Dongying District, Dongying City, Shandong Province Patentee before: SHENGLI OILFIELD HIGHLAND PETROLEUM EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right |