Forced reverse circulation fishing basket

Abstract

The utility model discloses a forced reverse circulation fishing basket, belongs to the technical field of petroleum drilling tools, and aims to solve the problems of inflexible movement and increased operation difficulty caused by sliding friction between a basket and a barrel in the prior art. Two annular pieces are fixedly connected to the outer surface of the collecting basket, and an annular groove is formed in the outer surface of each annular piece; limiting blocks are arranged on the upper surfaces of corresponding fixing blocks, when a first check block and a second check block are opened, a torsional spring acts, the first check block and the second check block can only be opened by 90 degrees through the limiting blocks, limiting of the first check block and the second check block is achieved, a collecting basket is arranged in a barrel, the annular piece is installed in a groove in the surface of the collecting basket, and therefore the annular piece can be conveniently collected. And the annular grooves are formed in the surfaces of the collecting baskets, the balls are placed in the corresponding annular grooves, the friction force between the collecting baskets and the barrel can be reduced by arranging the balls, the flexibility is improved, and the operation difficulty is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of oil drilling tool technology, specifically relating to a forced reverse circulation retrieval basket. Background Technology

[0002] A reverse circulation retrieval basket is a tool used to recover metal fragments and other debris from the bottom of a well. It utilizes localized reverse circulation of drilling fluid near the bottom of the well. Fluid is injected through nozzles, creating a suction effect at the bottom of the tool, drawing loose debris into the retrieval basket and securing it with the tool's debris grabber.

[0003] When existing forced reverse circulation dredging baskets are in use, the connection between the basket and the cylinder is made by sliding friction, resulting in a small gap. When mud and sand enter, it leads to inflexible movement, increases the difficulty of operation, reduces flexibility, and also increases the failure rate.

[0004] Therefore, a forced reverse circulation retrieval basket is needed to solve the problems of inflexible movement between the basket and the cylinder, high friction, increased operation difficulty, increased failure rate, and low flexibility in the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a forced reverse circulation retrieval basket to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a forced reverse circulation retrieval basket, comprising a cylindrical body, a collection basket slidably connected to the inner wall of the cylindrical body, two annular components fixedly connected to the outer surface of the collection basket, each annular component having an annular groove on its outer surface, and ball bearings arranged at equal intervals on the inner wall of each annular groove, a fixing block arranged at equal intervals fixedly connected to the inner wall of the collection basket, a first stop block and a second stop block arranged at equal intervals provided inside the cylindrical body, the inner wall of each first stop block and the second stop block being rotatably connected to the outer surface of the corresponding fixing block, a limit block being fixedly connected to the upper surface of each fixing block, and two torsion springs being fixedly installed on the inner wall of each fixing block, the side of each torsion spring that is close to each other being fixedly connected to the outer surface of the corresponding first stop block and the second stop block.

[0007] It should be noted in the solution that the outer surface of the cylinder is provided with through holes arranged at equal intervals, and a milling shoe is fixedly installed at the bottom end of the cylinder.

[0008] It is worth noting that an installation block is fixedly connected to the inner wall of the cylinder, and a connecting pipe is fixedly installed on the inner wall of the cylinder.

[0009] Furthermore, it should be noted that a valve seat is fixedly installed on the inner wall of the mounting block, and a valve-shaped bowl is fixedly connected to the upper surface of the mounting block.

[0010] In a preferred embodiment, an upper connector is fixedly installed on the inner wall of the connecting pipe, a lifting ring is fixedly connected to the top of the upper connector, a micro motor is fixedly connected to the inner wall of the upper connector, and a threaded rod is fixedly connected to the output shaft of the micro motor.

[0011] In a preferred embodiment, an L-shaped plate is threadedly connected to the outer surface of the threaded rod, and a guide rod is slidably connected to the inner wall of the L-shaped plate. Both ends of the guide rod are fixedly connected to the inner wall of the upper connector.

[0012] In a preferred embodiment, the upper connector has a steel ball inside, and a limiting groove is formed on the inner wall of the upper connector. The inner wall of the limiting groove is slidably connected to the outer surface of the L-shaped plate.

[0013] Compared with the prior art, the forced reverse circulation retrieval basket provided by this utility model has at least the following beneficial effects:

[0014] (1) This utility model sets up components such as a collection basket, annular parts, ball bearings, and limiting blocks. By setting the limiting blocks on the upper surface of the corresponding fixed blocks, when the first and second blocks are opened, the torsion springs act, and the limiting blocks allow the first and second blocks to open only 90 degrees, thus limiting the first and second blocks. In addition, a collection basket is set inside the cylinder, and the annular parts are installed in the grooves on the surface of the collection basket. An annular groove is opened on its surface, and the ball bearings are placed inside the corresponding annular grooves. By setting the ball bearings, the friction between the collection basket and the cylinder can be reduced, the flexibility can be improved, and the difficulty of operation can be reduced.

[0015] (2) By setting up components such as a micro motor, a threaded rod, an L-shaped plate, and a guide rod, when the device is in use, the steel ball is placed inside the upper connector in advance. When the steel ball needs to be dropped to block the valve bowl, the micro motor drives the threaded rod to rotate, and the threaded rod causes the L-shaped plate to move, thereby causing the L-shaped plate to slide at the position of the guide rod. This causes the L-shaped plate to be concealed inside the limiting groove. At this time, the steel ball falls and can block the valve bowl, reducing the difficulty of operation when using the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection relationship between the threaded rod and the L-shaped plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the annular groove and the ball bearings in this utility model.

[0020] In the picture:

[0021] 100. Cylinder body; 101. Through hole;

[0022] 200. Collection basket; 201. Annular component; 202. Annular groove; 203. Ball bearing; 204. Fixing block; 205. Stop block one; 206. Stop block two; 207. Limiting block; 208. Torsion spring;

[0023] 300. Milling shoes;

[0024] 400. Mounting block; 401. Valve seat; 402. Valve cup;

[0025] 500. Connecting pipe;

[0026] 600. Upper connector; 601. Lifting ring; 602. Miniature motor; 603. Threaded rod; 604. L-shaped plate; 605. Guide rod; 606. Steel ball; 607. Limiting groove. Detailed Implementation

[0027] Please see Figure 1-4 This utility model provides a forced reverse circulation retrieval basket, including a cylindrical body 100. A collection basket 200 is slidably connected to the inner wall of the cylindrical body 100. The collection basket 200 is disposed inside the cylindrical body 100, and its surface is adapted to the inner wall of the cylindrical body 100, allowing the collection basket 200 to slide up and down on the inner wall of the cylindrical body 100. Two annular members 201 are fixedly connected to the outer surface of the collection basket 200. The annular members 201 are installed on the outer surface of the collection basket 200 and connected to grooves on the surface of the collection basket 200 to achieve the positioning of the annular members 201. For effective installation, each annular component 201 has an annular groove 202 on its outer surface. The annular groove 202 is positioned on the surface of the annular component 201. Each annular groove 202 has balls 203 arranged at equal intervals on its inner wall. The balls 203 are placed on the inner wall of the corresponding annular groove 202 and can roll inside the annular groove 202. Through the contact between the balls 203 and the inner wall of the cylinder 100, the friction between the collection basket 200 and the cylinder 100 can be reduced, improving flexibility and reducing the difficulty of operation.

[0028] Further as Figure 4As shown, the inner wall of the collection basket 200 is fixedly connected with equidistantly arranged fixing blocks 204. Installing the fixing blocks 204 on the inner wall of the collection basket 200 constitutes a fixed connection, achieving the positioning and installation effect of the fixing blocks 204. The interior of the cylinder 100 is provided with equidistantly arranged stop blocks 1 205 and equidistantly arranged stop blocks 206. By placing the stop blocks 1 205 and stop blocks 206 inside the cylinder 100, their distribution allows for... The bottom surface of the collection basket 200 is mostly closed to facilitate the collection of falling objects. The inner walls of each stop block 1 205 and stop block 206 are rotatably connected to the outer surface of the corresponding fixing block 204. The stop block 1 205 and stop block 206 are connected to the corresponding fixing block 204 in a rotatable manner to achieve the limiting effect of stop block 1 205 and stop block 206, so that stop block 1 205 and stop block 206 can rotate on the connecting pin surface of the fixing block 204.

[0029] Looking back further Figure 4 Each fixed block 204 has a limiting block 207 fixedly connected to its upper surface. The limiting block 207 is installed on the upper surface of the fixed block 204 for a fixed connection. The limiting block 207 prevents the first stop 205 and the second stop 206 from rotating too much, ensuring that the first stop 205 and the second stop 206 can only rotate 90 degrees. Two torsion springs 208 are fixedly installed on the inner wall of each fixed block 204. Set as a fixed connection, the torsion spring 208 can provide torsional torque. The side of each torsion spring 208 that is close to each other is fixedly connected to the outer surface of the corresponding stop block 1 205 and stop block 206. The torsion spring 208 is connected to the corresponding stop block 1 205 and stop block 206. The torsion spring 208 can make the stop block 1 205 and stop block 206 rotate. After rotation, the stop block 1 205 and stop block 206 can quickly return to their original position under the action of the torsion spring 208.

[0030] The solution has the following working process: The outer surface of the cylinder 100 is provided with through holes 101 arranged at equal intervals. The through holes 101 are formed on the outer surface of the cylinder 100. The through holes 101 represent water holes on the surface of the cylinder 100, which can force the mud to be diverted and flow out at high speed through the water holes. A milling shoe 300 is fixedly installed at the bottom end of the cylinder 100. The milling shoe 300 is positioned and installed at the bottom end of the cylinder 100. The milling shoe 300 is an existing component.

[0031] According to the above working process, the inner wall of the cylinder 100 is fixedly connected to the mounting block 400. The mounting block 400 is fixed to the inner wall of the cylinder 100 to achieve the positioning and installation effect of the mounting block 400. The inner wall of the cylinder 100 is fixedly installed with the connecting pipe 500. The connecting pipe 500 is set on the inner wall of the cylinder 100 to achieve the installation of the connecting pipe 500.

[0032] Further as Figure 3 As shown, a valve seat 401 is fixedly installed on the inner wall of the mounting block 400. The valve seat 401 is installed on the inner wall of the mounting block 400 to realize the installation of the valve seat 401. A valve-shaped bowl 402 is fixedly connected to the upper surface of the mounting block 400. The valve-shaped bowl 402 is installed on the upper surface of the mounting block 400 and fits with the inner wall of the mounting block 400. The valve-shaped bowl 402 facilitates the guidance of the steel ball 606 to the lower opening position. After the opening is sealed by the steel ball 606, the valve-shaped bowl 402 can be sealed.

[0033] Further integration Figure 1 and Figure 2 An upper connector 600 is fixedly installed on the inner wall of the connecting pipe 500. The upper connector 600 is set on the inner wall of the connecting pipe 500 for fixed installation. A lifting ring 601 is fixedly connected to the top of the upper connector 600. The lifting ring 601 is installed on the top of the upper connector 600 to facilitate the lifting and movement of the entire device. A micro motor 602 is fixedly connected to the inner wall of the upper connector 600 for fixed connection, achieving the positioning and installation effect of the micro motor 602. A threaded rod 603 is fixedly connected to the output shaft of the micro motor 602 for fixed connection, enabling the threaded rod 603 to rotate through the micro motor 602.

[0034] Looking back further Figure 3 An L-shaped plate 604 is threadedly connected to the outer surface of the threaded rod 603. The L-shaped plate 604 is installed on the surface of the threaded rod 603, forming a threaded connection. The L-shaped plate 604 can move by rotating the threaded rod 603. A guide rod 605 is slidably connected to the inner wall of the L-shaped plate 604. Both ends of the guide rod 605 are fixedly connected to the inner wall of the upper connector 600. The guide rod 605 is installed on the inner wall of the upper connector 600, forming a fixed connection. The guide rod 605 is also connected to the L-shaped plate 604, forming a sliding connection, thereby limiting the movement of the L-shaped plate 604.

[0035] In summary: The upper connector 600 has a steel ball 606 inside. The steel ball 606 can block the position of the valve bowl 402, facilitating reverse circulation. The inner wall of the upper connector 600 has a limiting groove 607. The limiting groove 607 is located on the inner wall of the upper connector 600 to achieve positioning. The inner wall of the limiting groove 607 is slidably connected to the outer surface of the L-shaped plate 604. The connection between the limiting groove 607 and the L-shaped plate 604 is set as a sliding connection to limit the L-shaped plate 604. The movement of the L-shaped plate 604 can open and close the opening position of the upper connector 600, thus facilitating the drop of the steel ball 606.

[0036] The milling shoe 300 and the micro motor 602 can be purchased from the market. They are mature technologies in this field and have been fully disclosed. Therefore, they will not be described again in the specification.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forced reverse circulation retrieval basket, comprising a cylindrical body (100), characterized in that: A collection basket (200) is slidably connected to the inner wall of the cylindrical body (100). Two annular components (201) are fixedly connected to the outer surface of the collection basket (200). An annular groove (202) is formed on the outer surface of each annular component (201). Ball bearings (203) are arranged at equal intervals on the inner wall of each annular groove (202). Fixed blocks (204) are arranged at equal intervals on the inner wall of the collection basket (200). A set of baffles (204) arranged at equal intervals are provided inside the cylindrical body (100). 5) and equally spaced stop blocks (206), the inner wall of each of the stop blocks (205) and the stop blocks (206) is rotatably connected to the outer surface of the corresponding fixed block (204), the upper surface of each of the fixed blocks (204) is fixedly connected to a limit block (207), the inner wall of each of the fixed blocks (204) is fixedly installed with two torsion springs (208), and the side of each torsion spring (208) that is close to each other is fixedly connected to the outer surface of the corresponding stop block (205) and the stop blocks (206).

2. The forced reverse circulation retrieval basket according to claim 1, characterized in that: The outer surface of the cylinder (100) is provided with through holes (101) arranged at equal intervals, and a milling shoe (300) is fixedly installed at the bottom end of the cylinder (100).

3. The forced reverse circulation retrieval basket according to claim 1, characterized in that: An installation block (400) is fixedly connected to the inner wall of the cylinder (100), and a connecting pipe (500) is fixedly installed on the inner wall of the cylinder (100).

4. The forced reverse circulation retrieval basket according to claim 3, characterized in that: A valve seat (401) is fixedly installed on the inner wall of the mounting block (400), and a valve-shaped bowl (402) is fixedly connected to the upper surface of the mounting block (400).

5. A forced reverse circulation retrieval basket according to claim 3, characterized in that: The inner wall of the connecting pipe (500) is fixedly installed with an upper connector (600), the top end of the upper connector (600) is fixedly connected with a lifting ring (601), the inner wall of the upper connector (600) is fixedly connected with a micro motor (602), and the output shaft of the micro motor (602) is fixedly connected with a threaded rod (603).

6. The forced reverse circulation retrieval basket according to claim 5, characterized in that: The outer surface of the threaded rod (603) is threadedly connected to an L-shaped plate (604), and the inner wall of the L-shaped plate (604) is slidably connected to a guide rod (605). Both ends of the guide rod (605) are fixedly connected to the inner wall of the upper connector (600).

7. A forced reverse circulation retrieval basket according to claim 6, characterized in that: The upper connector (600) is provided with a steel ball (606) inside, and a limiting groove (607) is provided on the inner wall of the upper connector (600). The inner wall of the limiting groove (607) is slidably connected to the outer surface of the L-shaped plate (604).

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