Pulling-out device for lining oil pipe

Abstract

The pulling-out device for the lining oil pipe comprises an installation shell and an installation plate, a rotary abutting plate is rotatably installed in the installation shell, a hand rotating handle is fixedly installed on one side of the rotary abutting plate, four outer sleeve frames are fixedly installed on the outer side of the installation shell, and inner sleeve rods are installed in the four outer sleeve frames in a sliding mode. The ends, away from the outer sleeve frame, of the inner sleeve rods are fixedly provided with abutting blocks. The output end of a driving motor can drive a winding roller to rotate, so that a traction pull rope is wound, a mounting shell is pulled to move in an oil pipe, a bending push rod pushes an oil pipe lining to move in the oil pipe, the operation is smooth and efficient, the oil pipe lining is successfully pulled out, and the practicability is high. According to the oil pipe lining pulling-out device, the complex process of replacing the oil pipe lining is greatly simplified, the pulling-out process becomes simple and rapid, the working efficiency is improved, and great convenience and comfortable experience are brought to a user.

Description

Technical Field

[0001] This utility model relates to the field of oil pipe lining technology, specifically to a pull-out device for oil pipe lining. Background Technology

[0002] As a crucial component for transporting fluids such as oil and natural gas, oil pipes typically have an internal anti-corrosion and wear-resistant lining to protect them from fluid corrosion and abrasion. However, with prolonged use, the lining may need to be replaced due to aging, wear, or damage.

[0003] Traditional methods for replacing inner linings mostly rely on manual operation or simple mechanical tools. Such methods often require a long time and manpower to operate, and existing mechanical tools often cannot guarantee the complete removal of the inner lining during operation, resulting in the inner lining remaining inside the oil pipe, which increases the difficulty and economic cost of subsequent maintenance. Existing methods are not well adapted to old oil pipes, and because the inner lining is too tightly attached to the oil pipe wall, there is a great risk of the inner lining falling off during the replacement process, which greatly affects the normal use of the oil pipe and the safety of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a pull-out device for lined oil pipes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pull-out device for an inner-lined oil pipe, comprising a mounting shell and a mounting plate. A rotating pressure plate is rotatably mounted inside the mounting shell. A hand handle is fixedly mounted on one side of the rotating pressure plate. Four outer frames are fixedly mounted on the outer side of the mounting shell. An inner sleeve rod is slidably mounted inside each of the four outer frames. A contact block is fixedly mounted at the end of each inner sleeve rod away from the outer frame. A ball bearing is rotatably mounted inside the end of each contact block away from the inner sleeve rod. A bent push rod is fixedly mounted on one side of each contact block. Four connecting blocks are fixedly mounted on one side of the mounting shell. A dispersing pull rope is fixedly installed at the end away from the mounting shell. A connecting plate is fixedly installed at one end of the dispersing pull rope principle connecting block. A traction pull rope is fixedly installed on the side of the connecting plate away from the dispersing pull rope. A snap-fit ​​seat is fixedly installed at the end of the traction pull rope away from the connecting plate. Two support plates are fixedly installed on the top of the mounting plate. A take-up roller is rotatably installed on the opposite side of the two support plates. A snap-fit ​​groove is opened on the outer side of the take-up roller. A magnet is fixedly installed inside the snap-fit ​​groove and the snap-fit ​​seat. A drive motor is fixedly installed on one side of one of the support plates. The output end of the drive motor is fixedly connected to one end of the take-up roller.

[0006] Preferably, the outer contour of the card holder matches the inner contour of the card slot, and the magnetic poles of the two opposing faces of the magnets inside the card holder and the card slot are opposite.

[0007] Preferably, the end of the inner sleeve rod away from the abutment block is in contact with the outer side of the rotating pressure plate, and the inner side of the outer frame is provided with a limiting groove. Limiting sliders are fixedly installed on both sides of the inner sleeve rod, and the limiting sliders are slidably installed on the inner side of the limiting groove.

[0008] Preferably, the top of the mounting plate has a storage slot, the inside of which a handheld base is installed, and a magnet is fixedly installed inside the handheld base.

[0009] Preferably, a rubber pad is fixedly installed on the side of the bent push rod away from the contact block.

[0010] Preferably, a mounting bend rod is fixedly installed on one side of the mounting shell, and a fastening bolt is connected to the internal thread of the mounting bend rod. A pressing pad is fixedly installed on one end of the fastening bolt.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the output end of the set drive motor can drive the winding roller to rotate, thereby winding the traction rope, thereby pulling the mounting shell to move inside the oil pipe, thereby causing the bending push rod to push the oil pipe liner to move inside the oil pipe. This is not only smooth but also efficient, successfully realizing the pull-out operation of the oil pipe liner, greatly simplifying the complex process of oil pipe liner replacement, making the pull-out process simple and quick, not only improving work efficiency, but also bringing great convenience and comfort to users;

[0012] In addition, turning the hand handle drives the rotating pressure plate to rotate, thereby pushing the inner sleeve rod to move inside the outer sleeve frame. This causes the ball bearings inside the contact block at one end of the outer sleeve frame to contact the inner wall of the oil pipe, thus installing the device inside the oil pipe. This allows for flexible adaptation to oil pipes of different sizes, ensuring wide applicability and high efficiency in operation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present utility model.

[0014] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0015] Figure 3 This is a partial cross-sectional view of the present invention.

[0016] Figure 4 This is a partial appearance structural diagram of the present utility model.

[0017] In the diagram: 1. Mounting shell; 2. Mounting plate; 3. Outer frame; 4. Inner rod; 5. Abutment block; 6. Ball bearing; 7. Bending push rod; 8. Rubber pad; 9. Connecting block; 10. Dispersing pull rope; 11. Connecting plate; 12. Traction pull rope; 13. Take-up roller; 14. Drive motor; 15. Handhold; 16. Support plate; 17. Hand handle; 18. Fastening bolt; 19. Pressing pad; 20. Snap-fit ​​seat; 21. Mounting bent rod; 22. Storage slot; 23. Magnet one; 24. Snap-fit ​​slot; 25. Magnet two; 26. Rotating pressure plate; 27. Limiting slide groove; 28. Limiting slider. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a pull-out device for an inner-lined oil pipe, comprising a mounting shell 1 and a mounting plate 2. A rotating pressure plate 26 is rotatably mounted inside the mounting shell 1, and a hand handle 17 is fixedly mounted on one side of the rotating pressure plate 26. Four outer frames 3 are fixedly mounted on the outer side of the mounting shell 1. Inner sleeve rods 4 are slidably mounted inside each of the four outer frames 3. A contact block 5 is fixedly mounted at the end of each inner sleeve rod 4 away from the outer frame 3. A ball bearing 6 is rotatably mounted inside the end of each contact block 5 away from the inner sleeve rod 4. A bent push rod 7 is fixedly mounted on one side of each contact block 5. Four connecting blocks 9 are fixedly mounted on one side of the mounting shell 1. A dispersing pull rope 10 is fixedly mounted at the end of each of the four connecting blocks 9 away from the mounting shell 1. A connecting rod is fixedly mounted at the end of each dispersing pull rope 10 connected to the connecting block 9. A traction rope 12 is fixedly installed on the side of the connecting plate 11 away from the dispersing rope 10. A snap-fit ​​seat 20 is fixedly installed on the end of the traction rope 12 away from the connecting plate 11. Two support plates 16 are fixedly installed on the top of the mounting plate 2. A take-up roller 13 is rotatably installed on the opposite side of the two support plates 16. A snap-fit ​​groove 24 is opened on the outer side of the take-up roller 13. Magnets 25 are fixedly installed inside both the snap-fit ​​groove 24 and the snap-fit ​​seat 20. The outer contour of the snap-fit ​​seat 20 matches the inner contour of the snap-fit ​​groove 24. The magnetic poles of the opposite faces of the magnets 25 inside the snap-fit ​​seat 20 and the snap-fit ​​groove 24 are opposite. A drive motor 14 is fixedly installed on one side of one of the support plates 16. The output end of the drive motor 14 is fixedly connected to one end of the take-up roller 13.

[0020] The working principle of the above technical solution is as follows: First, the mounting shell 1 is placed inside one end of the oil pipe. Then, the hand handle 17 is turned to drive the rotating pressure plate 26 to rotate, thereby pushing the inner sleeve rod 4 to move inside the outer sleeve frame 3. This causes the ball bearing 6 inside the contact block 5 at one end of the outer sleeve frame 3 to contact the inner wall of the oil pipe, thus installing the device inside the oil pipe. This allows for flexible adaptation to oil pipes of different sizes, ensuring wide applicability and high efficiency in operation. Then, the mounting shell 1 is pushed so that one side of the bent push rod 7 contacts one end of the inner lining inside the oil pipe. After that, the snap-fit ​​seat 20 is passed through the oil pipe and snapped onto the outside of the take-up roller 13. The magnet 25 inside the snap-fit ​​groove 24 on the side is attracted together with the snap-fit ​​seat 20 and the snap-fit ​​groove 24. Then the drive motor 14 is started. The output end of the drive motor 14 can drive the winding roller 13 to rotate, thereby winding the traction rope 12, thereby pulling the mounting shell 1 to move inside the oil pipe, thereby causing the bending push rod 7 to push the oil pipe liner to move inside the oil pipe. This is not only smooth but also efficient, successfully realizing the pull-out operation of the oil pipe liner, greatly simplifying the complex process of oil pipe liner replacement, making the pull-out process simple and quick, not only improving work efficiency, but also bringing great convenience and comfort to users.

[0021] In another implementation scheme, such as Figures 1-4 As shown, the end of the inner sleeve rod 4 away from the contact block 5 is in contact with the outer side of the rotating pressure plate 26. The inner side of the outer frame 3 is provided with a limiting groove 27. The two sides of the inner sleeve rod 4 are fixedly installed with limiting sliders 28. The limiting sliders 28 are slidably installed on the inner side of the limiting groove 27. The side of the bent push rod 7 away from the contact block 5 is fixedly installed with a rubber pad 8.

[0022] When the inner sleeve rod 4 moves inside the outer frame 3, the limiting slider 28 can move inside the limiting groove 27, thereby ensuring the stability of the inner sleeve rod 4 moving inside the outer frame 3 and preventing the inner sleeve rod 4 from coming out of the outer frame 3, thus ensuring the normal use of the device.

[0023] In another implementation scheme, such as Figures 1-4 As shown, the top of the mounting plate 2 has a storage slot 22, and a handheld base 15 is installed inside the storage slot 22. A magnet 23 is fixedly installed inside the handheld base 15.

[0024] The handheld base 15 can be removed from the inside of the storage slot 22, and then the magnet 1 23 can be attached to the outside of the oil pipe. The magnet 25 inside the snap-fit ​​base 20 is located inside the oil pipe. When the handheld base 15 carries the magnet 1 23 and moves outside the oil pipe, the snap-fit ​​base 20 can be moved inside the oil pipe by the magnet 2 25, which makes it convenient for the snap-fit ​​base 20 to pull the traction rope 12 inside the oil pipe.

[0025] In another implementation scheme, such as Figures 1-4 As shown, a mounting bend rod 21 is fixedly installed on one side of the mounting shell 1. A fastening bolt 18 is connected to the internal thread of the mounting bend rod 21. A pressing pad 19 is fixedly installed on one end of the fastening bolt 18.

[0026] By rotating the fastening bolt 18, the pressing pad 19 is moved, thereby pressing and fixing the hand handle 17 through the pressing pad 19.

[0027] Working principle: First, place the mounting shell 1 inside one end of the oil pipe. Then, turn the hand handle 17 to rotate the rotating pressure plate 26, thereby pushing the inner sleeve rod 4 to move inside the outer frame 3. When the inner sleeve rod 4 moves inside the outer frame 3, the limiting slider 28 can move inside the limiting groove 27, thus ensuring the stability of the inner sleeve rod 4's movement inside the outer frame 3 and preventing the inner sleeve rod 4 from coming out of the outer frame 3, ensuring the normal use of the device. This causes the ball bearing 6 inside the contact block 5 at one end of the outer frame 3 to contact the inner wall of the oil pipe, thus installing the device inside the oil pipe. It can flexibly adapt to oil pipes of different sizes, ensuring wide applicability and high efficiency of operation. Then, push the mounting shell 1 so that one side of the bent push rod 7 contacts one end of the inner lining inside the oil pipe. The handheld base 15 can be taken out from inside the storage slot 22. Then, magnet 1 23 is attracted to the outside of the oil pipe, while magnet 25 inside the snap-fit ​​base 20 is located inside the oil pipe. The handheld base 15 carries magnet 1 23. When the outside of the tubing moves, the magnet 25 drives the snap-fit ​​seat 20 to move inside the tubing, thus facilitating the snap-fit ​​seat 20 to pull the traction rope 12 inside the tubing. The snap-fit ​​seat 20 is snapped into the snap-fit ​​groove 24 on the outside of the take-up roller 13, and the magnet 25 inside the snap-fit ​​seat 20 and the snap-fit ​​groove 24 are attracted together. Then, the drive motor 14 is started, and the output end of the drive motor 14 can drive the take-up roller 13 to rotate, thereby winding the traction rope 12, thus pulling the mounting shell 1 to move inside the tubing. This causes the bending push rod 7 to push the tubing liner to move inside the tubing. This is not only smooth but also efficient, successfully realizing the pull-out operation of the tubing liner, greatly simplifying the complex process of replacing the tubing liner, making the pull-out process simple and quick. It not only improves work efficiency but also brings great convenience and comfort to users. By rotating the fastening bolt 18, the pressing pad 19 is moved, thereby pressing and fixing the hand handle 17 through the pressing pad 19.

[0028] 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 pull-out device for lined oil pipes, comprising a mounting shell (1) and a mounting plate (2), characterized in that: A rotating pressure plate (26) is rotatably mounted inside the mounting shell (1). A hand handle (17) is fixedly mounted on one side of the rotating pressure plate (26). Four outer frames (3) are fixedly mounted on the outside of the mounting shell (1). An inner sleeve rod (4) is slidably mounted inside each of the four outer frames (3). A contact block (5) is fixedly mounted on the end of each inner sleeve rod (4) away from the outer frame (3). A ball bearing (6) is rotatably mounted inside the end of each contact block (5) away from the inner sleeve rod (4). A bent push rod (7) is fixedly mounted on one side of each contact block (5). Four connecting blocks (9) are fixedly mounted on one side of the mounting shell (1). A dispersing pull rope (10) is fixedly mounted on the end of each of the four connecting blocks (9) away from the mounting shell (1). The dispersing pull rope (10) is connected in principle to... A connecting plate (11) is fixedly installed at one end of the connecting block (9). A traction rope (12) is fixedly installed on the side of the connecting plate (11) away from the dispersing rope (10). A snap-fit ​​seat (20) is fixedly installed at the end of the traction rope (12) away from the connecting plate (11). Two support plates (16) are fixedly installed on the top of the mounting plate (2). A take-up roller (13) is rotatably installed on the opposite side of the two support plates (16). A snap-fit ​​groove (24) is opened on the outer side of the take-up roller (13). A magnet (25) is fixedly installed inside the snap-fit ​​groove (24) and the snap-fit ​​seat (20). A drive motor (14) is fixedly installed on one side of one of the support plates (16). The output end of the drive motor (14) is fixedly connected to one end of the take-up roller (13).

2. The pull-out device for an inner-lined oil pipe according to claim 1, characterized in that: The outer contour of the card holder (20) matches the inner contour of the card slot (24), and the magnetic poles of the opposing surfaces of the two magnets (25) inside the card holder (20) and the card slot (24) are opposite.

3. The pull-out device for an inner-lined oil pipe according to claim 2, characterized in that: The end of the inner sleeve rod (4) away from the abutment block (5) is in contact with the outer side of the rotating pressure plate (26). The inner side of the outer frame (3) is provided with a limiting groove (27). The two sides of the inner sleeve rod (4) are fixedly installed with limiting sliders (28). The limiting sliders (28) are slidably installed on the inner side of the limiting groove (27).

4. The pull-out device for an inner-lined oil pipe according to claim 3, characterized in that: The top of the mounting plate (2) is provided with a storage slot (22), and a handheld base (15) is installed inside the storage slot (22). A magnet (23) is fixedly installed inside the handheld base (15).

5. A pull-out device for an inner-lined oil pipe according to claim 4, characterized in that: Rubber pads (8) are fixedly installed on the side of the bent push rod (7) away from the contact block (5).

6. A pull-out device for an inner-lined oil pipe according to claim 5, characterized in that: A mounting bend rod (21) is fixedly installed on one side of the mounting housing (1). A fastening bolt (18) is connected to the internal thread of the mounting bend rod (21). A pressing pad (19) is fixedly installed at one end of the fastening bolt (18).

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