CN216950298U - Pipe type fish fishing device - Google Patents
Pipe type fish fishing device Download PDFInfo
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- CN216950298U CN216950298U CN202220170308.0U CN202220170308U CN216950298U CN 216950298 U CN216950298 U CN 216950298U CN 202220170308 U CN202220170308 U CN 202220170308U CN 216950298 U CN216950298 U CN 216950298U
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Abstract
The utility model relates to the technical field of underground fish fishing, in particular to a pipe type fish fishing device, which comprises a fishing rod, wherein the upper part of the fishing rod is provided with a joint, the outer peripheral surface of the lower part of the fishing rod is provided with fishing teeth, and at least two fishing teeth are arranged at intervals along the circumferential direction of the fishing rod; the fishing teeth are provided with lower side surfaces and outer side surfaces back to the fishing rod, the lower side surfaces are guide inclined surfaces used for guiding the fishing teeth to enter the tubular fish, and the outer side surfaces are jacking arc surfaces used for being in jacking fit with the inner walls of the tubular fish so as to enable the inner walls of the tubular fish to deform outwards. During operation, the fishing teeth on the fishing rod are guided by the guide inclined plane to smoothly enter the tubular fish, after the fishing teeth enter the tubular fish, the jacking cambered surfaces of the fishing teeth are in jacking fit with the inner wall of the tubular fish, so that the inner wall of the tubular fish is outwards deformed, the fishing teeth and the inner wall of the tubular fish are firmly used for fishing the fish, and the fishing success rate is improved.
Description
Technical Field
The utility model relates to the technical field of underground fish fishing, in particular to a pipe type fish fishing device.
Background
Fish is the object falling in the well during workover. The fish fall needs to be fished out under most conditions, otherwise the normal production of oil, gas and water wells is affected.
The utility model discloses a chinese utility model patent that the bulletin number is CN203499613U discloses a spear is salvaged to unconventional tube class junk, and this spear is one-level ladder cylinder structure, and the top is equipped with the internal screw thread and connects, is equipped with the slips on the middle lance, and the opposite of slips is equipped with rectangle round head groove, and the inslot is fixed with the subsidy piece by countersunk screw, and the end is equipped with the guide shoe. Before the fishing spear is lifted, the patch block and the slip are arranged in a staggered mode in the spear rod axial direction so as to enter the fish falling; and then, lifting the fishing spear, wherein the slips slide downwards due to friction with the inner wall of the fish, until the slips are aligned with the patching block in the axial direction of the spear rod, and at the moment, the slips are in close contact with the inner wall of the fish to generate a large friction force, so that the fishing of the fish is realized. However, the slips are easy to slide out of place when sliding downwards, so that the fish is not firmly fished, and the fishing success rate is low.
The utility model discloses a chinese utility model patent that the bulletin number is CN204552675U discloses an oil pipe fishing device, this fishing device mainly by fixed pipe, drag for the stock, the steel brush is constituteed, its holding power that only utilizes the steel brush salvages the fish in the pit, because the steel brush is softer, consequently the steel brush's grabbing power is not strong, and the fish of salvaging easily drops midway, causes to salvage the failure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pipe type fish fishing device, which aims to solve the technical problem that the fishing device in the prior art is not firm when used for fishing the fallen fish.
In order to realize the purpose, the technical scheme of the fishing device for the pipe fish is as follows:
the pipe type fish fishing device comprises a fishing rod, wherein the upper part of the fishing rod is provided with a joint, the outer peripheral surface of the lower part of the fishing rod is provided with fishing teeth, and at least two fishing teeth are arranged at intervals along the circumferential direction of the fishing rod; the fishing teeth are provided with lower side faces and outer side faces back to the fishing rod, the lower side faces are guide inclined faces used for guiding the fishing teeth to enter the pipe type fish, and the outer side faces are jacking and pressing arc faces used for being matched with jacking and pressing of the inner walls of the pipe type fish so that the inner walls of the pipe type fish are deformed outwards.
The beneficial effects are that: during operation, the fishing rod enters the tubular fish under the action of certain weight, and meanwhile, the fishing teeth on the outer peripheral surface of the fishing rod are guided by the guide inclined surface to smoothly enter the tubular fish; after the fishing teeth enter the tubular fish, the jacking cambered surfaces of the fishing teeth are in jacking fit with the inner wall of the tubular fish so that the inner wall of the tubular fish is deformed outwards, the fishing of the fish is firm by utilizing the interference tension and friction force between the fishing teeth and the inner wall of the tubular fish, and the fishing success rate is improved.
As a further improvement, the fishing teeth arranged along the circumferential direction of the fishing rod are taken as a group of fishing teeth, and at least two groups of fishing teeth are arranged on the fishing rod along the axial direction of the fishing rod.
The beneficial effects are that: by the design, the fishing stability is further ensured.
As a further improvement, the fishing teeth are provided with upper side surfaces, and the upper side surfaces are flat surfaces.
The beneficial effects are that: design like this, in salvaging the tooth and getting into the pipe class fish and make the outside back that produces of pipe class fish inner wall warp, the side of going up of salvaging the tooth and the side of going up of the concave part that the fish inner wall formed has certain support cooperation, further guarantees the stability of salvaging.
As a further improvement, the jacking cambered surface is a rough surface.
The beneficial effects are that: therefore, the friction force between the fishing teeth and the inner wall of the fish can be increased, the fishing stability can be ensured, and the rough surface is convenient to process.
As a further improvement, the end faces of the two ends of the fishing teeth in the circumferential direction of the fishing rod are flat.
The beneficial effects are that: the design is like this for salvage tooth is less relatively in fishing rod ascending size in the circumference, is favorable to salvaging the tooth and enters into the concave part after the fish inner wall warp.
As a further improvement, the guide inclined surface is an arc inclined surface with a large upper part and a small lower part.
The beneficial effects are that: the design is further favorable for guiding the fishing teeth to enter the tube fish.
As a further improvement, the fishing teeth are welded to the fishing rod.
The beneficial effects are that: the stability of the fixed connection between the fishing teeth and the fishing rod is ensured.
As a further improvement, the lower end of the fishing rod is provided with milling teeth, and the fishing rod is of a hollow structure which is through along the axial direction of the fishing rod.
The beneficial effects are that: by the design, the inner cavity blocking objects of the tubular fish can be drilled and milled before the tubular fish is salvaged, and the fishing rod can smoothly enter the tubular fish.
As a further improvement, the outer diameter of the fishing rod is not less than ninety percent of the inner diameter of the tubular fish.
The beneficial effects are that: design like this, can salvage every tooth and salvage the radial ascending size processing's of pole less relatively, under the circumstances of guaranteeing to salvage tooth intensity, avoid the holistic great of doing of salvaging the tooth, be favorable to salvaging in the tooth enters into the tube class fish.
As a further improvement, the joint is connected with the fishing rod through screw threads.
The beneficial effects are that: by the design, the joint and the fishing rod can be conveniently and respectively processed.
Drawings
FIG. 1 is a schematic structural view of the fishing device for tubular fish according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
in the figure: 11. a joint; 12. a fishing rod; 13. fishing teeth; 14. milling teeth; 15. a lower side surface; 16. an outer side surface; 17. an upper side surface; 18. an end face.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the utility model, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the utility model, not as a full mode. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …," or the like, does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "front", "back", "upper", "lower", "left" and "right" are based on the orientations and positional relationships shown in the drawings and are only for convenience in describing the present invention, but do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the fishing device for pipe fish of the present invention:
as shown in fig. 1, the pipe fish fishing device includes a fishing rod 12 and a joint 11, wherein the lower end of the joint 11 is screwed on the upper end of the fishing rod 12, and the upper end of the joint 11 is used for being screwed on the drilling tool. Wherein, the outer diameter of the joint 11 is larger than that of the fishing rod 12.
In this embodiment, the lower end of the fishing rod 12 is provided with the milling teeth 14, and the milling teeth 14 are welded on the fishing rod 12, so as to ensure the stability of the fixed connection between the milling teeth 14 and the fishing rod 12. The fishing rod 12 is a hollow structure which is through along the axial direction, the milling teeth 14 can drill and mill the blocking objects in the inner cavity of the tube-type fish, and the fishing rod 12 is used for the well-washing liquid to pass through so as to clear the blocking objects in the inner cavity of the tube-type fish. The structure and the working principle of the milling teeth 14 are prior art, and are not described in detail herein. In other embodiments, the lower end of the fishing rod may not be provided with milled teeth without obstructions within the tubular fish.
In this embodiment, the outer peripheral surface of the lower portion of the fishing rod 12 is provided with four fishing teeth 13, and the four fishing teeth 13 are evenly arranged along the circumference of the fishing rod 12 at intervals. As shown in fig. 2, the fishing teeth 13 include a half cylinder and an inverted half cone arranged up and down, and both ends of the half cylinder and the half cone in the circumferential direction of the fishing rod 12 are partially cut off. The fishing teeth 13 have a lower side 15 and an outer side 16 facing away from the fishing rod 12, the lower side 15 being a partial outer circumferential surface of a semi-cone, and the outer side 16 being a partial outer circumferential surface of a semi-cylinder. The lower side surface 15 is a guide inclined surface for guiding the fishing teeth 13 to enter the tubular fish, and the outer side surface 16 is a jacking cambered surface for jacking and matching with the inner wall of the tubular fish so as to enable the inner wall of the tubular fish to deform outwards. Wherein, the hardness of fishing tooth 13 is higher, and the wall thickness of fishing rod 12 is great to guarantee that fishing rod is difficult to take place to warp.
In this embodiment, the top pressure arc surface on the fishing tooth 13 is adapted to the inner wall of the tubular fish, and the radius corresponding to the top pressure arc surface is slightly larger than the radius corresponding to the inner wall of the tubular fish.
In this embodiment, the upper side surface 17 of the fishing tooth 13 is a plane, so that after the fishing tooth 13 enters the tubular fish and the inner wall of the tubular fish is deformed outwards, the upper side surface of the fishing tooth 13 and the upper side surface of the concave part formed by the inner wall of the tubular fish have certain supporting matching, and the fishing stability is further ensured.
In this embodiment, the roof pressure cambered surface is the matte, can increase the frictional force between salvage tooth 13 and the fish inner wall like this, is favorable to guaranteeing the stability of salvaging, and the matte is convenient for process moreover.
In this embodiment, the end surfaces 18 of the fishing teeth 13 on the circumference of the fishing rod 12 after being cut off are planes, so that the fishing teeth 13 have a relatively small size on the circumference of the fishing rod 12, which is beneficial for the fishing teeth 13 to enter the deformed concave part of the inner wall of the fish.
In this embodiment, with salvage tooth 13 along fishing rod 12 circumference arrangement as a set of salvage tooth, fishing rod 12 is last to be provided with two sets of salvage teeth along its axial to guarantee the stability of salvaging. In other embodiments, the number of sets of fishing teeth may be arranged as desired.
In this embodiment, the guide inclined plane is an arc inclined plane with a large upper part and a small lower part, and the surface is smooth, so that the design is further favorable for guiding the fishing teeth 13 to enter the tube-type fish.
In this embodiment, the fishing teeth 13 are welded on the fishing rod 12 to ensure the stability of the fixed connection between the fishing teeth 13 and the fishing rod 12.
In this embodiment, the outer diameter of the fishing rod 12 is not less than ninety percent of the inner diameter of the tubular fish, so that the fishing teeth 13 can be machined to be relatively small in the radial direction of the fishing rod 12, the fishing teeth 13 are prevented from being integrally machined to be relatively large under the condition that the strength of the fishing teeth 13 is ensured, and the fishing teeth 13 can enter the tubular fish. In other embodiments, the outer diameter of the fishing rod may be between eighty-five percent to ninety percent of the inner diameter of the tubular fish.
The pipe fish fishing device in the embodiment is particularly suitable for short and light pipes.
During operation, firstly, the inner cavity blockage of the tube fish is drilled and milled by using the milling teeth 14, and the inner cavity blockage of the tube fish is removed by using the well washing liquid; and then, the drilling tool is lowered, a certain weight of the drilling tool is applied, so that the fishing teeth 13 are extruded into the tubular fish, the inner wall of the tubular fish is subjected to outward plastic deformation, the fish is reliably fished by utilizing interference tension and friction, and the fishing success rate is improved. Moreover, the hand can be taken off by overcoming the interference tension and the friction force after the card is stuck.
Embodiment 2 of the fishing device for pipe fish of the present invention:
the difference between the embodiment and the embodiment 1 is that in the embodiment 1, the upper side surface of the fishing tooth is a plane. In this embodiment, the upper side surface of the fishing tooth is a straight surface inclined outward from top to bottom.
Embodiment 3 of the fishing device for pipe fish of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the slope is pressed against the rough surface. In this embodiment, the top pressure inclined plane is the smooth surface, and is equipped with the arch on the smooth surface to increase frictional force.
Embodiment 4 of the fishing device for pipe fish of the present invention:
the present embodiment is different from embodiment 1 in that in embodiment 1, the guide slope is an arc slope having a large top and a small bottom. In this embodiment, the guide slope is a straight slope.
Embodiment 5 of the fishing device for pipe fish of the present invention:
this embodiment differs from embodiment 1 in that in embodiment 1, the fishing teeth are welded to the fishing rod. In this embodiment, the fishing teeth are provided with counter bores, and the fishing teeth are fixed on the fishing rod through fixing bolts in the counter bores.
Embodiment 6 of the fishing device for pipe fish of the present invention:
the difference between the present embodiment and embodiment 1 is that in embodiment 1, the joint is screwed with the fishing rod. In this embodiment, connect and salvage pole integrated into one piece machine-shaping.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. The pipe type fish fishing device comprises a fishing rod (12), wherein the upper part of the fishing rod (12) is provided with a joint (11), and the pipe type fish fishing device is characterized in that the outer peripheral surface of the lower part of the fishing rod (12) is provided with fishing teeth (13), and at least two fishing teeth (13) are arranged at intervals along the circumferential direction of the fishing rod (12); the fishing teeth (13) are provided with lower side surfaces (15) and outer side surfaces (16) back to the fishing rod (12), the lower side surfaces (15) are guide inclined surfaces used for guiding the fishing teeth (13) to enter the tubular fish, and the outer side surfaces (16) are jacking arc surfaces used for being in jacking fit with the inner walls of the tubular fish so as to enable the inner walls of the tubular fish to deform outwards.
2. The pipe type fish fishing device according to claim 1, wherein the fishing teeth (13) arranged along the circumference of the fishing rod (12) are a set of fishing teeth, and the fishing rod (12) is provided with at least two sets of fishing teeth along the axial direction thereof.
3. A tubular fish fishing device according to claim 1 or 2, characterised in that the fishing teeth (13) have an upper side (17), the upper side (17) being planar.
4. The tubular fish fishing device of claim 1 or 2, wherein the abutting cambered surface is a rough surface.
5. A tubular fish fishing device according to claim 1 or 2, wherein the end faces (18) of the fishing teeth (13) in the circumferential direction of the fishing rod (12) are flat.
6. A tubular fish fishing device according to claim 1 or 2, wherein the guide ramp is an arc-shaped ramp having a large upper portion and a small lower portion.
7. Pipe fish fishing device according to claim 1 or 2, characterised in that the fishing teeth (13) are welded on the fishing rod (12).
8. The pipe type fish fishing device according to claim 1 or 2, wherein the lower end of the fishing rod (12) is provided with milling teeth (14), and the fishing rod (12) is a hollow structure which penetrates along the axial direction of the fishing rod.
9. A tubular fish fishing device according to claim 1 or 2, wherein the outside diameter of the fishing rod (12) is not less than ninety percent of the inside diameter of the tubular fish.
10. A tubular fish fishing device according to claim 1 or 2, characterised in that the joint (11) is screwed together with the fishing rod (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220170308.0U CN216950298U (en) | 2022-01-21 | 2022-01-21 | Pipe type fish fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220170308.0U CN216950298U (en) | 2022-01-21 | 2022-01-21 | Pipe type fish fishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216950298U true CN216950298U (en) | 2022-07-12 |
Family
ID=82315784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220170308.0U Active CN216950298U (en) | 2022-01-21 | 2022-01-21 | Pipe type fish fishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216950298U (en) |
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2022
- 2022-01-21 CN CN202220170308.0U patent/CN216950298U/en active Active
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