Hydraulic wrench special for blowout preventer

Abstract

The utility model belongs to the field of well plugging hydraulic wrenches, and particularly relates to a hydraulic wrench special for a well plugging device, which comprises a working head and a power head, an inner cavity of the working head is rotatably connected with a ratchet wheel, one side of the working head is fixedly connected with a mounting part, one side of the power head is attached to one side of the mounting part, and the ratchet wheel is fixedly connected with the mounting part. One side of the power head is fixedly connected with a connecting mechanism; longitudinal separation between the power head and the working head can be avoided as much as possible through matching of the anti-separation plate and the anti-separation groove, when the power head and the working head are installed, the first positioning hole and the second positioning hole coincide in position, and the power head and the working head can be finally fixed through the fixing pin. Therefore, the hydraulic wrench special for the blowout preventer is small, exquisite, convenient to use, capable of adapting to different narrow environments to work and convenient to disassemble and assemble, and practicability and working efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of well sealing hydraulic wrenches, in particular to a special hydraulic wrench for well sealing devices. Background Art

[0002] Hydraulic wrenches are widely used. In the construction, maintenance, and emergency repair work of shipbuilding, petrochemical, wind power, hydropower, thermal power, mining, machinery, steel mills, rubber, pipeline and other industries, hydraulic wrenches are a relatively important tool for the installation and removal of large-sized bolts. They are irreplaceable by other tools. They are not only easy to use, but also provide very precise torque, with a torque repeatability accuracy of about ±3%.

[0003] The hydraulic wrench for well plugging devices is a professional tool used to tighten and remove large-sized bolts required during the installation and maintenance of well plugging devices. However, some hydraulic wrenches have complex connection methods and many connecting parts, which makes the disassembly process cumbersome. If they are transported as a whole, their convenience is reduced, and the efficiency of installation during use is also affected. Loss of parts may make the hydraulic wrench inconvenient to use, affecting work efficiency. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology, some hydraulic wrenches have complex connection methods and many connecting parts, which makes the disassembly process cumbersome. If they are transported as a whole, the convenience is reduced, and the efficiency of installation during use is also affected. The loss of parts may cause the hydraulic wrench to be inconvenient to use, affecting work efficiency and other problems. The utility model proposes a hydraulic wrench specially used for well sealing devices.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a hydraulic wrench specially used for well plugging device, comprising a working head and a power head, wherein the inner cavity of the working head is rotatably connected to a ratchet, one side of the working head is fixedly connected to a mounting portion, one side of the power head is affixed to one side of the mounting portion, and one side of the power head is fixedly connected to a connecting mechanism;

[0006] The connecting mechanism includes a slider, a sliding groove is provided on one side of the mounting part, the surface of the slider is slidably connected to the inner wall of the sliding groove, an anti-slip plate is fixedly connected to one side of the slider, an anti-slip groove is provided on one side of the mounting part, the inner wall of the anti-slip groove is connected to the inner wall of the sliding groove, the surface of the anti-slip plate is slidably connected to the inner wall of the anti-slip groove, the inner wall of the anti-slip plate is slidably connected to a resistance-increasing buckle, and one end of the resistance-increasing buckle is in the shape of a circular arc.

[0007] Preferably, one end of the resistance-increasing buckle is fixedly connected to a limiting plate, and the surface of the limiting plate is slidably connected to the inner wall of the anti-slip plate.

[0008] Preferably, one side of the limiting plate is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inner wall of the anti-slip plate.

[0009] Preferably, a limiting hole is provided on the inner wall of the mounting portion, and the surface of the resistance-increasing buckle abuts against the inner wall of the limiting hole.

[0010] Preferably, a reinforcement plate is fixedly connected to one side of the power head, and a first positioning hole is opened on one side of the reinforcement plate.

[0011] Preferably, a reinforcement groove is provided on one side of the mounting portion, and the surface of the reinforcement plate is slidably connected to the inner wall of the reinforcement groove.

[0012] Preferably, a second positioning hole is opened on one side of the mounting portion, the inner wall of the second positioning hole is connected to the inner wall of the first positioning hole, and a fixing pin is inserted into the inner wall of the second positioning hole and the inner wall of the first positioning hole.

[0013] The utility model is beneficial in that:

[0014] The present invention can fix the anti-slip plate and the anti-slip groove in a T-shape, and the sliding groove and the anti-slip groove are connected to each other in a T-shape, and the sliding groove is connected to the sliding groove, and the anti-slip plate and the anti-slip groove are clamped together. When the power head and the working head are initially connected as a whole, the resistance buckle can further improve the connection stability of the power head and the working head. The cooperation of the anti-slip plate and the anti-slip groove can avoid longitudinal separation between the power head and the working head as much as possible. When the power head and the working head are installed, the first positioning hole and the second positioning hole are coincident with each other, and the power head and the working head can be finally fixed by the fixing pin, so as to avoid lateral separation between the power head and the working head as much as possible. It is compact and convenient, can adapt to different narrow environments, and has convenient disassembly and installation processes, improves practicality and work efficiency, solves the problem that the connection method of some hydraulic wrenches is complicated and has many connecting parts, resulting in a cumbersome disassembly process. If it is transported as a whole, the convenience is reduced, and the installation efficiency is also affected during use. Loss of parts may make the hydraulic wrench inconvenient to use, affecting work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall device of the utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the working head of the utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the power head of the utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the resistance-increasing buckle of the present utility model;

[0020] Figure 5 It is a three-dimensional schematic diagram of the limiting hole of the utility model.

[0021] In the figure: 1. Working head; 2. Power head; 3. Ratchet; 4. Mounting part; 5. Connecting mechanism; 501. Slider; 502. Slide groove; 503. Anti-slip plate; 504. Anti-slip groove; 505. Resistance-increasing buckle; 6. Limiting plate; 7. Spring; 8. Limiting hole; 9. Reinforcement plate; 10. First positioning hole; 11. Reinforcement groove; 12. Second positioning hole; 13. Fixing pin. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The following is combined with Figure 1-5 To further explain this application,

[0024] The embodiment of the present application discloses a hydraulic wrench for well plugging. Figures 1 to 5 A hydraulic wrench for a well plugging device includes a working head 1 and a power head 2. The inner cavity of the working head 1 is rotatably connected to a ratchet 3. One side of the working head 1 is fixedly connected to a mounting portion 4. One side of the power head 2 is attached to one side of the mounting portion 4. One side of the power head 2 is fixedly connected to a connecting mechanism 5.

[0025] The connecting mechanism 5 includes a slider 501, a sliding groove 502 is provided on one side of the mounting portion 4, the surface of the slider 501 is slidably connected to the inner wall of the sliding groove 502, and an anti-slip plate 503 is fixedly connected to one side of the slider 501, and an anti-slip groove 504 is provided on one side of the mounting portion 4, the inner wall of the anti-slip groove 504 is connected to the inner wall of the sliding groove 502, the surface of the anti-slip plate 503 is slidably connected to the inner wall of the anti-slip groove 504, and the inner wall of the anti-slip plate 503 is slidably connected to the inner wall of the anti-slip groove 504. The inner wall of the anti-slip plate 503 is slidably connected to a resistance-increasing buckle 505, and the shape of one end of the resistance-increasing buckle 505 is an arc shape. A limiting hole 8 is provided on the inner wall of the mounting portion 4, and the surface of the resistance-increasing buckle 505 is against the inner wall of the limiting hole 8. The hydraulic wrench dedicated to the well sealing device can remove or tighten the bolts through the working head 1, and the hydraulic cylinder on the power head 2 and the It is connected to external hydraulic equipment, and the power head 2 can provide power for the working head 1. During installation, the power head 2 is quickly connected to the working head 1 through the connecting mechanism 5. The anti-slip plate 503 is fixedly connected to the power head 2 through the slider 501 and is set in a T shape. The slide groove 502 and the anti-slip groove 504 are connected and also set in a T shape. The slider 501 is slidably connected to the slide groove 502, and a card connection is formed between the anti-slip plate 503 and the anti-slip groove 504. When the power head 2 and the working head 1 are initially connected into a whole, the resistance-increasing buckle 505 can be used to further improve the connection stability between the power head 2 and the working head 1. Therefore, the hydraulic wrench specially used for the well sealing device is small and convenient, can adapt to different narrow environments for work, and the disassembly and installation process is convenient, which improves practicality and work efficiency.

[0026] Reference Figure 4 One end of the resistance increasing buckle 505 is fixedly connected to the limiting plate 6, and the surface of the limiting plate 6 is slidably connected to the inner wall of the anti-slip plate 503. Through the setting of the limiting plate 6, the limiting plate 6 and the resistance increasing buckle 505 are fixedly connected into a whole. The resistance increasing buckle 505 slides along the inner wall of the anti-slip plate 503 while driving the limiting plate 6 to move. The position of the resistance increasing buckle 505 can be limited by the limiting plate 6 to avoid separation between the resistance increasing buckle 505 and the anti-slip plate 503 as much as possible.

[0027] Reference Figure 4 , one side of the limiting plate 6 is fixedly connected to a spring 7, and the other end of the spring 7 is fixedly connected to the inner wall of the anti-slip plate 503. Through the provided spring 7, when the anti-slip plate 503 is plugged into the anti-slip groove 504, the resistance-increasing buckle 505 is squeezed and retracted in the inner cavity of the anti-slip plate 503, and the spring 7 is squeezed. When the position of the resistance-increasing buckle 505 coincides with the position of the limiting hole 8, the spring 7 releases its elastic potential energy to pop out the resistance-increasing buckle 505, thereby causing the resistance-increasing buckle 505 to counteract the limiting hole 8, thereby increasing the connection resistance;

[0028] In addition, one end of the resistance-increasing buckle 505 and the inner wall of the limiting hole 8 are both arranged in an arc shape, ensuring that the resistance-increasing buckle 505 can adaptively shrink or pop out when the power head 2 and the working head 1 are disassembled.

[0029] Reference Figure 4 A reinforcement plate 9 is fixedly connected to one side of the power head 2, and a first positioning hole 10 is opened on one side of the reinforcement plate 9. Through the setting of the reinforcement plate 9, the reinforcement plate 9 is fixedly connected to the power head 2 as a whole, increasing the contact area between the power head 2 and the working head 1, and improving the friction after installation.

[0030] Reference Figure 5 A reinforcement groove 11 is provided on one side of the mounting portion 4, and the surface of the reinforcement plate 9 is slidably connected to the inner wall of the reinforcement groove 11. Through the setting of the reinforcement groove 11, the outer wall size of the reinforcement groove 11 is equal to that of the reinforcement plate 9. When the power head 2 and the working head 1 are installed, the reinforcement plate 9 is inserted into the reinforcement groove 11, thereby increasing the contact area between the power head 2 and the working head 1 and improving the friction after installation.

[0031] Reference Figure 1 、 Figure 4 and Figure 5 A second positioning hole 12 is provided on one side of the mounting portion 4, and the inner wall of the second positioning hole 12 is connected to the inner wall of the first positioning hole 10. A fixing pin 13 is inserted into the inner wall of the second positioning hole 12 and the inner wall of the first positioning hole 10. Through the provided fixing pin 13, the cooperation of the anti-slip plate 503 and the anti-slip groove 504 can avoid the longitudinal separation between the power head 2 and the working head 1 as much as possible. When the power head 2 and the working head 1 are installed, the positions of the first positioning hole 10 and the second positioning hole 12 coincide, and the power head 2 and the working head 1 can be finally fixed by the fixing pin 13 to avoid the lateral separation between the power head 2 and the working head 1 as much as possible.

[0032] Working principle: During installation, the power head 2 is quickly connected to the working head 1 through the connecting mechanism 5, the anti-slip plate 503 is fixedly connected to the power head 2 through the slider 501, and is set in a T shape, the slide groove 502 and the anti-slip groove 504 are connected and are also set in a T shape, the slider 501 is slidably connected to the slide groove 502, and a card connection is formed between the anti-slip plate 503 and the anti-slip groove 504. When the anti-slip plate 503 is plugged into the anti-slip groove 504, the resistance-increasing buckle 505 is squeezed and contracted in the inner cavity of the anti-slip plate 503, and the spring 7 is squeezed. When the position of the resistance-increasing buckle 505 coincides with the position of the limiting hole 8, the spring 7 releases its elastic potential energy to pop out the resistance-increasing buckle 505, thereby making the resistance-increasing buckle 5 05 is offset against the limiting hole 8 to increase the connection resistance. After the power head 2 and the working head 1 are initially connected into a whole, the reinforcement plate 9 is inserted into the reinforcement groove 11, and the first positioning hole 10 and the second positioning hole 12 are coincident. The power head 2 and the working head 1 can be finally fixed by the fixing pin 13. The cooperation of the anti-slip plate 503 and the anti-slip groove 504 can avoid the longitudinal separation between the power head 2 and the working head 1 as much as possible. The fixing pin 13 can avoid the lateral separation between the power head 2 and the working head 1 as much as possible. Therefore, the hydraulic wrench specially used for the well sealing device is small and convenient, can adapt to different narrow environments for work, and the disassembly and installation process is convenient, which improves practicality and work efficiency.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A hydraulic wrench for a well plugging device, characterized by: The invention comprises a working head (1) and a power head (2), wherein the inner cavity of the working head (1) is rotatably connected to a ratchet (3), one side of the working head (1) is fixedly connected to a mounting portion (4), one side of the power head (2) is attached to one side of the mounting portion (4), and one side of the power head (2) is fixedly connected to a connecting mechanism (5); The connecting mechanism (5) comprises a slider (501), a slide groove (502) is provided on one side of the mounting portion (4), a surface of the slider (501) is slidably connected to the inner wall of the slide groove (502), an anti-slip plate (503) is fixedly connected to one side of the slider (501), an anti-slip groove (504) is provided on one side of the mounting portion (4), the inner wall of the anti-slip groove (504) is connected to the inner wall of the slide groove (502), a surface of the anti-slip plate (503) is slidably connected to the inner wall of the anti-slip groove (504), a resistance-increasing buckle (505) is slidably connected to the inner wall of the anti-slip plate (503), and one end of the resistance-increasing buckle (505) is in the shape of an arc.

2. The hydraulic wrench for well plugging device according to claim 1, characterized in that: One end of the resistance-increasing buckle (505) is fixedly connected to the limiting plate (6), and the surface of the limiting plate (6) is slidably connected to the inner wall of the anti-slip plate (503).

3. The hydraulic wrench for well plugging device according to claim 2, characterized in that: One side of the limiting plate (6) is fixedly connected to a spring (7), and the other end of the spring (7) is fixedly connected to the inner wall of the anti-slip plate (503).

4. The hydraulic wrench for well plugging device according to claim 1, characterized in that: A limiting hole (8) is provided on the inner wall of the mounting portion (4), and the surface of the resistance-increasing buckle (505) abuts against the inner wall of the limiting hole (8).

5. The hydraulic wrench for well plugging device according to claim 1, characterized in that: A reinforcement plate (9) is fixedly connected to one side of the power head (2), and a first positioning hole (10) is provided on one side of the reinforcement plate (9).

6. The hydraulic wrench for well plugging device according to claim 5, characterized in that: A reinforcement groove (11) is provided on one side of the mounting portion (4), and the surface of the reinforcement plate (9) is slidably connected to the inner wall of the reinforcement groove (11).

7. The hydraulic wrench for well plugging device according to claim 5, characterized in that: A second positioning hole (12) is provided on one side of the mounting portion (4), the inner wall of the second positioning hole (12) is connected to the inner wall of the first positioning hole (10), and a fixing pin (13) is inserted into the inner wall of the second positioning hole (12) and the inner wall of the first positioning hole (10).

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