CN213205613U

CN213205613U - Junk fishing tool

Info

Publication number: CN213205613U
Application number: CN202021751097.7U
Authority: CN
Inventors: 史改芳; 李建雄; 陈言美; 殷正; 孟莉珍; 谢勇军
Original assignee: Technology Monitoring Center Zhongyuan Oil Field Branch Of China Petrochemical Corp; China Petroleum and Chemical Corp
Current assignee: Technology Monitoring Center Zhongyuan Oil Field Branch Of China Petrochemical Corp; China Petroleum and Chemical Corp
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-05-14
Anticipated expiration: 2030-08-20

Abstract

The utility model relates to a junk fishing tool, which comprises a fishing body, wherein the upper end of the fishing body is provided with a connecting part, the lower end of the fishing body is provided with a slot, the slot transversely penetrates through the fishing body to form two inserting arms at the lower end of the fishing body, and the slot is provided with a socket at the lower end part of the fishing body; clamping block mounting holes are symmetrically formed in the two groove walls of the slot, and clamping blocks are movably mounted in the clamping block mounting holes; the movable stroke of the clamping block is provided with an avoiding position and a salvaging position, when the avoiding position is positioned, the clamping block is inwards folded towards the corresponding clamping block mounting hole so as to avoid falling objects and enable the falling objects to be arranged above the clamping block mounting hole, and when the salvaging position is positioned, the clamping block extends out of the corresponding clamping block mounting hole and is matched with the other corresponding clamping block to prop against a shaft shoulder of the falling objects; the bottom of the clamping block is provided with a pushing surface used for being in pushing fit with a falling object, and the pushing surface is in pushing fit with the falling object when in use so that the clamping block moves from a salvaging position to an avoiding position; the fishing tool also comprises a spring for driving the clamping block to move from the avoiding position to the fishing position and keep the clamping block at the fishing position.

Description

Junk fishing tool

Technical Field

The utility model relates to a junk fishing tool.

Background

In the process of testing the water injection well in the oil field in a layering way, due to the reason of a water injection well pipe column, the reason of an instrument or the reason of manual operation and the like, underground falling objects can be caused, and the underground falling objects such as a similar rod-shaped body of a blanking plug of an eccentric water distributor and the like are transversely arranged on the inner wall of an oil pipe, so that the testing is blocked and the testing precision is influenced.

There is the mode that adopts an overshot to salvage the junk in the pit among the prior art, like the eccentric water distributor blanking plug fishing tool disclosed in the chinese utility model patent of the grant publication No. CN209385089U, it includes an overshot and the slips in the overshot, and during the salvage, the fishing head of blanking plug enters into the overshot, is blocked by the pothook on the slips, then lifts fishing tool, lifts the blanking plug to ground. However, the fishing tool is applicable to a large scene and is only applicable to the situation that the fishing head of the blanking plug is vertically arranged, and at the moment, the fishing barrel can be sleeved outside the fishing head. However, in practical use, it is found that the rod-shaped body may be placed in the inner wall of the oil pipe (obliquely clamped in the inner wall of the oil pipe or completely placed in the inner wall of the oil pipe), the fishing head of the downhole falling object is attached to the inner wall of the oil pipe, the inner diameter of the fishing barrel is usually smaller than the length of the rod-shaped body, and the fishing barrel cannot salvage the rod-shaped body, which affects subsequent operations such as testing. The same is true for other shouldered junk, and when the junk cannot be vertically arranged, the overshot cannot be salvaged. In fact, not only the condition that the objects falling down from the well cannot be salvaged in the process of the layered test of the water injection well of the oil field, but also the problem exists in other underground operation processes.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a junk fishing tool to solve among the prior art horizontal in oil pipe and the technical problem that can't salvage of junk in the pit.

In order to achieve the purpose, the utility model discloses junk fishing tool's technical scheme is: a junk fishing tool comprising:

the fishing body is provided with a connecting part used for being connected with a hoisting tool at the upper end and a slot at the lower end, the slot transversely penetrates through the fishing body to form two inserting arms at the lower end of the fishing body, the slot is provided with a socket at the lower end part of the fishing body, and the fishing body is inserted outside a falling object when in use;

clamping block mounting holes are symmetrically formed in the two groove walls of the slot, and clamping blocks are movably mounted in the clamping block mounting holes;

the movable stroke of the clamping block is provided with an avoiding position and a salvaging position, when the avoiding position is positioned, the clamping block is inwards folded towards the corresponding clamping block mounting hole so as to avoid falling objects and enable the falling objects to be arranged above the clamping block mounting hole, and when the salvaging position is positioned, the clamping block extends out of the corresponding clamping block mounting hole and is matched with the other corresponding clamping block to prop against a shaft shoulder of the falling objects;

the bottom of the clamping block is provided with a pushing surface used for being in pushing fit with a falling object, and the pushing surface is in pushing fit with the falling object when in use so that the clamping block moves from a salvaging position to an avoiding position;

the fishing tool also comprises a spring for driving the clamping block to move from the avoiding position to the fishing position and keep the clamping block at the fishing position.

The utility model has the advantages that: the two inserting arms and the inserting grooves between the two inserting arms are arranged on the fishing body, so that the fishing body can be inserted outside a falling object even if the falling object is transversely arranged in an oil pipe. The clamping blocks movably arranged on the fishing body can be pushed to the avoidance position by the falling objects in the descending process of the fishing body, so that the falling objects enter the upper part of the clamping blocks, the clamping blocks can be driven to the fishing position by the springs, the lower parts of the shaft shoulders of the falling objects can be clamped by the clamping blocks, and the clamping blocks upwards support the shaft shoulders of the falling objects in the lifting process so as to fish the falling objects. Set up the confined salvage barrel among the prior art and compare the mode of salvaging the junk, the utility model discloses well adoption cartridge's mode is applicable to horizontal junk, effectively utilizes the shaft shoulder on the junk to salvage the junk.

As a further optimized scheme, the fixture blocks are movably assembled in the corresponding fixture block mounting holes, the springs are compression springs, and the compression springs are arranged in the fixture block mounting holes and push the corresponding fixture blocks towards the direction of the slots;

the pushing surface is a direction-changing slope surface, and the direction-changing slope surface can enable the direction-changing driving clamping block to move transversely after being pushed by falling objects.

The fixture block is more convenient to move and assemble, and the slope face is changed to ensure that the fixture block can be pushed by falling objects to retract into the fixture block mounting hole, so that a channel is provided for the falling objects to enter.

As a further optimized scheme, the fixture block comprises a small-diameter section close to the slot and a large-diameter section away from the slot, and the large-diameter section and the small-diameter section form an outer annular step;

and an annular stop structure which is used for being in stop fit with the outer annular step is arranged in the fixture block mounting hole so as to prevent the fixture block from being separated from the fixture block mounting hole towards the direction of the slot.

The effect of this scheme lies in, through the cooperation of outer annular step and annular stop structure, restricts the removal limit of fixture block, prevents that the fixture block from deviating from, guarantees to lift the in-process and can block the junk.

As a further optimized scheme, the fixture block mounting holes penetrate through the corresponding inserting arms to communicate the inserting grooves and the outside of the fishing body;

the fixture block mounting hole comprises a small hole section close to the slot and a large hole section far away from the slot, and the annular stop structure in the fixture block mounting hole is an inner annular step formed by the small hole section and the large hole section;

and a spring seat for supporting the pressure spring is arranged on an orifice at one end of the fixture block mounting hole, which deviates from the slot.

The effect of this scheme lies in, and the fixture block mounting hole runs through and alternates the arm, can follow the outside installation fixture block that inserts the arm, and it is more convenient to install.

As a further optimized scheme, a positioning groove or a positioning bulge matched with the pressure spring is arranged on the clamping block, the end part of the pressure spring is inserted into the positioning groove in a positioning mode, and the end part of the pressure spring is sleeved with the positioning bulge in a positioning mode.

The effect of this scheme lies in, through setting up positioning groove or location arch, prevents that the spring from taking place askew partially at the in-process of atress compression and resilience release, and leads to the unable return of fixture block and blocks the junk.

As a further optimized scheme, a positioning groove or a positioning bulge matched with the pressure spring is arranged on the spring seat, the end part of the pressure spring is positioned and inserted into the positioning groove, and the end part of the pressure spring is positioned and sleeved by the positioning bulge.

As a further optimized scheme, two clamping blocks matched with and propping against the shaft shoulder of the falling object are defined as a clamping block group;

at least two clamping block groups are arranged on the salvaging body at intervals along the up-down direction.

The effect of this scheme lies in, sets up two at least fixture block groups, and when the junk slope was horizontal, when the junk has two at least shoulders in addition, two shoulders of salvaging the body can be withstood simultaneously to the salvage body, improve and salvage the success rate.

As the further optimized scheme, the lower end of the salvaging body is provided with a guide shoe, a horn-shaped guide channel communicated with the slot is arranged in the guide shoe, and the horn-shaped guide channel is used for guiding falling objects to enter the slot.

The effect of this scheme lies in, sets up behind the tubaeform guide channel, and after guide shoe and junk contact, along with salvaging the body down, can drive and salvage the body or the action of junk, make the slot of salvaging the body and arrange with junk is adjusted well, the guide junk enters into the slot.

As a further optimized scheme, the guide shoe is integrally formed at the lower end of the fishing body.

The effect of this scheme lies in, and integrated into one piece's mode is convenient more processes, makes.

As a further optimized scheme, the connecting part is an upper joint which is assembled at the top of the fishing body in a threaded mode.

Drawings

FIG. 1 is a schematic view of an embodiment 1 of the junk fishing tool of the present invention;

FIG. 2 is a left side view of the embodiment 1 of the fishing tool for junk according to the present invention;

FIG. 3 is a schematic view of the fixture block of FIG. 1;

FIG. 4 is a schematic view of the spring seat of FIG. 1;

description of reference numerals:

1-salvaging the body;

11-an insertion arm;

2-upper joint;

3, inserting a slot;

4-mounting holes for fixture blocks;

41-a macroporous section;

42-a small pore section;

5-clamping blocks;

51-redirection slope;

52-a fixture block positioning groove;

53-an outer annular step;

6-a spring;

7-spring seats;

71-a spring seat positioning groove;

8-guide shoe;

81-trumpet guide channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, 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, the terms "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 … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses an overall concept lies in, and the unable cover of overshot among the prior art is in the outside of junk, just also can't salvage, the utility model discloses in with two relatively independent insert the outside that the arm comes the cartridge to the junk to rely on two fixture blocks tops in the slot between the arm on the shaft shoulder of junk, salvage the junk.

The utility model discloses a junk fishing tool's embodiment 1:

as shown in fig. 1 to 4, the junk fishing tool is adapted to a shouldered junk of a rod or other shape by catching a portion of the junk below the shoulder and fishing the junk by engaging the shoulder.

Junk fishing tool is including salvaging body 1, and salvaging body 1 extends from top to bottom when using, and salvaging body 1 inserts arm 11 including two that are located the lower extreme, and two insert 11 intervals of arm and arrange, and two insert and form slot 3 between the arm 11, and two insert 11 relatively independence of arm to make slot 3 transversely run through salvaging body 1. The slot 3 has the socket in the bottom of the fishing body 1, and the fishing body 1 can be inserted outside the junk during use, makes the junk enter into the slot 3.

After the falling objects enter the slot 3, in order to drive the falling objects to move upwards and realize fishing, a locking mechanism is arranged on each inserting arm 11. The locking mechanisms on the two insertion arms 11 are symmetrically arranged. As shown in fig. 1, the locking mechanism includes a latch mounting hole 4 formed in the insertion arm 11, and the latch mounting hole 4 extends transversely through the insertion arm 11 to communicate the insertion arm 11 with the outside of the fishing body 1. A clamping block 5 is movably assembled in the clamping block mounting hole 4, the clamping block 5 is provided with an inner end facing the slot 3 and an outer end back to the slot 3. When the inner ends of the two symmetrically arranged clamping blocks 5 retract into the clamping block mounting holes 4, falling objects can enter a space above the clamping blocks 5 in the slot 3, and when the inner ends of the clamping blocks 5 extend into the slot 3, the falling objects can be upwards supported and clamped, and the falling objects are fished out.

In order to control the extension and retraction of the inner end of the latch 5, as shown in fig. 1, a spring seat 7 is installed at an opening of one end of the latch installation hole 4 facing away from the slot 3, a spring 6 is pressed between the spring seat 7 and the latch 5, and the spring 6 is a compression spring. Spring holder 7 is fixed in fixture block mounting hole 4, and spring 6 can exert the effort towards slot 3 to fixture block 5, orders about the inner of fixture block 5 to stretch into slot 3. In order to drive the inner end of the latch 5 to retract into the latch mounting hole 4, so as to form a channel for the falling object to enter in the slot 3, as shown in fig. 1 and 3, the inner end of the latch 5 has a direction-changing slope 51, and the direction-changing slope 51 faces downward, where the direction-changing slope 51 is an inclined surface. When falling objects push the direction-changing slope 51 upwards, the direction-changing slope 51 can change the upward pushing force to a transverse pushing force, and the falling objects overcome the acting force of the spring 6 and retract into the fixture block mounting hole 4.

As shown in fig. 1, in order to prevent the spring 6 from pushing the fixture block 5 out of the fixture block mounting hole 4, the fixture block mounting hole 4 is designed to be a stepped hole, and includes a small hole section 42 close to the insertion groove 3 and a large hole section 41 facing away from the insertion groove 3, the spring seat 7 is welded in the large hole section 41, and the small hole section 42 and the large hole section 41 form an inner annular step. As shown in fig. 3, the fixture block 5 also includes a small diameter section close to the slot 3 and a large diameter section away from the slot 3, the large and small diameter sections form an outer annular step 53, and the outer annular step 53 is in stop fit with the inner annular step of the fixture block mounting hole 4.

As shown in fig. 1, 3 and 4, in order to position the spring 6 and prevent the spring 6 from greatly deviating, a fixture positioning groove 52 is disposed at one end of the fixture 5 facing the spring 6, and a spring seat positioning groove 71 is disposed at one end of the spring seat 7 facing the spring 6, and during assembly, two ends of the spring 6 are respectively positioned and placed in the fixture positioning groove 52 and the spring seat positioning groove 71.

In order to connect with a hoisting tool during use, as shown in fig. 1, an upper joint 2 is installed above a fishing body 1 in a threaded manner, an external thread is arranged at the upper end of the upper joint 2 and used for connecting with the hoisting tool, and the hoisting tool can be selected according to actual conditions, can be a combination of a steel wire rope and a steel wire rope cap, and can also be a hoisting pipe column.

When in use, the fishing body 1 is put into an oil pipe and inserted outside a falling object, so as to guide the fishing body 1 to be inserted outside the falling object. As shown in fig. 1, a guide shoe 8 is integrally formed at the lower end of the fishing body 1, a trumpet-shaped guide passage 81 is formed in the guide shoe 8, the trumpet-shaped guide passage 81 is communicated with the insertion groove 3, and the trumpet-shaped guide passage 81 can guide the fishing body 1 to the outside of a falling object.

As shown in fig. 1 and 2, the guide shoe 8 and the fishing body 1 are of an integral structure, and are relatively convenient to integrally form.

When in use, the two blocks 5 at the same horizontal position are matched to abut against the shaft shoulder of the falling object, and the two blocks 5 at the same horizontal position are defined as one block group, as shown in fig. 1, in this embodiment, two block groups are arranged on the fishing body 1 at intervals along the up-down direction. The two clamping block groups are arranged in the oil pipe, and are obliquely and transversely arranged in the oil pipe for partial falling objects, the two shaft shoulders are arranged up and down, and when the fishing body 1 is used for waxing, the two clamping block groups respectively correspond to the two shaft shoulders of the falling objects, so that the falling objects can be fished more assuredly.

The utility model discloses a use as follows: the trumpet-shaped guide passage 81 guides the fishing body 1 to the outside of the drop by the fishing body 1 to the drop below the hoist so that the two insertion arms 11 are inserted to the outside of the portion below the shoulder in the drop. The salvaging body 1 continues to descend, the fallen objects move upwards relative to the salvaging body 1, the direction-changing slope 51 is pushed in the moving process, the clamping block 5 is driven to retract into the clamping block mounting hole 4, and the fallen objects can move above the clamping block 5; after the falling object passes over the fixture block 5, the fixture block 5 is reset under the action of the spring 6. Then the fishing body 1 is lifted, the clamping block 5 props against the lower part of the shaft shoulder, and the falling object is lifted to the ground. In the lifting process, the fixture block 5 is assembled in the fixture block mounting hole, so that the fixture block cannot swing and fall off and is kept in an ejecting state by the spring 6.

In this embodiment, in fig. 1, the large hole section 41 and the small hole section 42 in the fixture block installation hole 4 together form an inner annular step, and cooperate with the outer annular step on the fixture block 5 to stop the fixture block 5, and the inner annular step forms an annular stop structure in stop cooperation with the outer annular step of the fixture block 5.

When in use, the direction-changing slope 51 in the fixture block 5 is in pushing fit with a falling object to form a pushing surface at the bottom of the fixture block 5.

In this embodiment, when the inner ends of the clamping blocks 5 extend into the slot 3, the symmetrical clamping blocks 5 are matched together to prop against the shaft shoulder of the falling object during fishing, and the clamping blocks 5 are in a fishing position at the moment; when the clamping blocks 5 are pushed by falling objects to enable the inner ends of the clamping blocks to retract towards the clamping block mounting holes 4, the falling objects can pass through the symmetrical clamping blocks 5, and the clamping blocks 5 are in the avoidance positions.

In this embodiment, the upper joint 2 is disposed at the upper end of the fishing body 1 when in use, and is used to connect with a hoisting tool, and the upper joint 2 forms a connecting portion disposed at the upper end of the fishing body 1.

It should be noted that the directions of up, down, horizontal, and the like in the present embodiment are described in the state of use, and the actual structure of the junk fishing tool is not limited.

The utility model discloses junk fishing tool's embodiment 2:

in the embodiment 1, the connecting part is an upper connector which is installed at the top of the fishing body in a threaded mode. In this embodiment, the connecting portion may be integrally formed at the top of the fishing body. And the connecting part is a threaded hole arranged at the top of the salvaging body and is directly in threaded connection with the salvaging body by using a hoisting tubular column.

The utility model discloses junk fishing tool's embodiment 3:

in example 1, the guide shoe is integrally formed at the lower end of the fishing body. In this embodiment, the guide shoe and the fishing body can be processed separately and then connected. Such as by welding, or by means of a threaded connection.

The utility model discloses junk fishing tool's embodiment 4:

in example 1, two chuck sets are arranged on the fishing body. In this embodiment, the number of the fixture block groups may be increased or decreased according to actual situations, and may be three or more, or of course, there may be only one fixture block group.

The utility model discloses junk fishing tool's embodiment 5:

in embodiment 1, the fixture block and the spring seat are both provided with positioning grooves for placing the corresponding ends of the spring. In this embodiment, change the positioning groove on fixture block and the spring holder into the location arch, the spring location suit also can prevent that the spring from taking place crooked on the location arch.

Of course, in other embodiments, only one of the fixture block and the spring seat may be provided with the positioning groove or the positioning protrusion, or the positioning groove or the positioning protrusion may be eliminated entirely, and the spring is elastically compressed by the end surfaces of the fixture block and the spring seat.

The utility model discloses junk fishing tool's embodiment 6:

in example 1, the spring seat is welded to the fishing body. In this embodiment, for realizing releasable connection, the convenient change to spare part, the assembly of spring holder screw thread is in the fixture block mounting hole of salvaging the body.

The utility model discloses junk fishing tool's embodiment 7:

in embodiment 1, the mounting hole of the fixture block penetrates through the insertion arm, the insertion slot is connected with the outside of the fishing body, and the fixture block is installed from the outside of the fishing body. In this embodiment, the fixture block mounting hole is the blind hole of inboard open-ended, and the fixture block is packed into by slot department, but the condition that this kind of mode is suitable is: the size of the clamping block is smaller, and the size of the slot is larger. In this embodiment, in order to block the fixture block, a blocking ring is installed at the inner end of the fixture block installation hole in a threaded manner, and the blocking ring is shaped as an annular blocking structure.

The utility model discloses junk fishing tool's embodiment 8:

in embodiment 1, the cartridge is movably fitted in the cartridge mounting hole. In this embodiment, the fixture block rotates and installs in the fixture block mounting hole, specifically, at fixture block mounting hole inner end orifice department installation hinge, the fixture block lower extreme is installed on the hinge, and the upper end can be swung into in the fixture block mounting hole. The hinge shaft is sleeved with a torsion spring, the torsion spring forms a spring, one end of the torsion spring abuts against the clamping block, the other end of the torsion spring abuts against the hole wall of the clamping block mounting hole, and acting force for driving the clamping block to swing downwards is applied to the clamping block. After the falling object enters the slot, the falling object pushes the fixture block to enable the fixture block to swing upwards, the fixture block is placed into the fixture block mounting hole, and the falling object passes through; then the lifting device swings downwards to return under the action of the torsion spring and is propped against the shaft shoulder of the falling object in the lifting process. In order to prevent the clamping block from being pressed by a falling object and swinging downwards in the lifting process, the hinge shaft is arranged far away from the inner end hole as far as possible, and the clamping block is supported upwards by the hole wall of the clamping block mounting hole.

In this embodiment, the pushing surface at the bottom of the clamping block may be a plane, and does not need to be a direction-changing slope surface. The fixture block mounting hole in this embodiment may be a straight hole.

The utility model discloses junk fishing tool's embodiment 9:

in embodiment 1, the direction-changing slope at the bottom of the fixture block is an inclined plane. It should be noted that the redirecting slope here serves the function of being able to reverse the force, and under this principle, the redirecting slope may be a curved surface or the like.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. A junk fishing tool, its characterized in that: the method comprises the following steps:

2. The junk fishing tool of claim 1, wherein: the fixture blocks are movably assembled in the corresponding fixture block mounting holes, the springs are compression springs, and the compression springs are arranged in the fixture block mounting holes and push the corresponding fixture blocks towards the direction of the slots;

3. The junk fishing tool of claim 2, wherein: the fixture block comprises a small-diameter section close to the slot and a large-diameter section far away from the slot, and the large-diameter section and the small-diameter section form an outer annular step;

4. The junk fishing tool of claim 3, wherein: the clamping block mounting hole penetrates through the corresponding inserting arm to communicate the inserting slot with the outside of the fishing body;

5. The junk fishing tool of claim 4, wherein: the fixture block is provided with a positioning groove or a positioning bulge matched with the pressure spring, the positioning groove is used for positioning and inserting the end part of the pressure spring, and the positioning bulge is used for positioning and sleeving the end part of the pressure spring.

6. The junk fishing tool of claim 4, wherein: the spring seat is provided with a positioning groove or a positioning bulge matched with the pressure spring, the positioning groove is used for positioning and inserting the end part of the pressure spring, and the positioning bulge is used for positioning and sleeving the end part of the pressure spring.

7. The junk fishing tool of any one of claims 1-6, wherein: defining two clamping blocks which are matched with each other and support the shaft shoulder of the falling object as a clamping block group;

8. The junk fishing tool of any one of claims 1-6, wherein: the lower extreme of salvaging the body is equipped with the guide shoe, is equipped with the tubaeform guide channel with the slot intercommunication in the guide shoe, and tubaeform guide channel is arranged in the guide thing gets into the slot.

9. The junk fishing tool of claim 8, wherein: the guide shoe is integrally formed at the lower end of the fishing body.

10. The junk fishing tool of any one of claims 1-6, wherein: the connecting part is an upper joint which is assembled at the top of the fishing body through threads.