A highly stable hydraulic power clamp

Abstract

This invention relates to the field of hydraulic power clamp technology, and discloses a highly stable hydraulic power clamp, comprising a hydraulic power clamp body, a lifting rod, side housings, a balancing device, and a support device. The lower end of the lifting rod is rotatably mounted on the hydraulic power clamp body, and the top of the lifting rod is connected to a lifting device. Two side housings are symmetrically arranged on both sides of the clamping part, and a partition is provided in the middle of the side housing, dividing the interior of the side housing into an upper cavity and a lower cavity. The balancing device is located in the upper cavity, and the support device is located in the lower cavity. The invention includes a balancing device, ensuring that the hydraulic power clamp body remains in a balanced state during lifting and clamping, thereby improving overall stability, reducing the burden of manual operation, and increasing work efficiency. The invention also includes a support device, providing the hydraulic power clamp body with both an upper lifting point and a lower support point, further improving stability during the installation and disassembly of hydraulic pipe joints.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic power tongs, in particular to a hydraulic power tong with high stability. BACKGROUND

[0002] With the continuous development of oil and gas exploration technology, hydraulic power tongs are increasingly widely used in well repair operations. Currently, hydraulic power tongs have become an indispensable tool in well repair operations. It is not only used in conventional well repair operations, but also gradually expands to emerging fields such as deep-sea oil and gas fields and shale gas development. In these fields, hydraulic power tongs have made important contributions to the development of oil and gas exploration with their unique advantages. Compared with traditional pipe tongs or chain tongs, hydraulic power tongs have many advantages. First, it can greatly reduce the labor intensity of well repair workers and improve work efficiency. Second, hydraulic power tongs can increase the torque of pipe and drill string threads, reduce the occurrence of thread stripping accidents, and improve the safety of operations. In addition, hydraulic power tongs also have the characteristics of simple operation and convenient maintenance, which can meet the use requirements in different scenes.

[0003] Chinese patent CN216922054U discloses a hydraulic power tong for drilling rod screwing and unscrewing, which comprises a hydraulic power tong mechanism. The hydraulic power tong mechanism comprises a hydraulic tong base, a driving host is installed at the top end of the hydraulic tong base, a connecting handle is arranged at intervals on the outer sides of the driving host and the hydraulic tong base, a suspension bracket mechanism is installed at the top end of the hydraulic tong base, a suspension rod mechanism is connected to the top end of the suspension bracket mechanism, a fixed sleeve mechanism is connected to the top end of the suspension rod mechanism, and an auxiliary suspension bracket mechanism is annularly and spacedly installed on the outer side of the fixed sleeve mechanism. The hydraulic power tong for drilling rod screwing and unscrewing can conveniently limit the hydraulic power tong at multiple points to improve the stability of the hydraulic power tong during hoisting and facilitate fast and stable hoisting.

[0004] The above-mentioned patent provides a technical solution to solve the problem of stable hoisting. By adjusting the hinge seat to rotate the extension stand at a suitable angle, the rope and the auxiliary lifting eye are connected together. Then, when the user hoists the suspension beam on the suspension bracket main seat through the suspension rod mechanism, the suspension rod mechanisms around the fixed sleeve mechanism can also hoist the connecting handles at different positions to maintain balance. However, this solution only solves the deflection problem between the beam sleeve ring and the suspension beam, but the deflection problem still exists between the connecting eye and the hoisting device, and the problem of stable hoisting cannot be solved. SUMMARY

[0005] To solve the above problems, the present application adopts the following technical solution.

[0006] A hydraulic power tong with high stability comprises,

[0007] The hydraulic power tong body comprises a clamping part and a driving part.

[0008] The lower end of the boom is rotatably mounted on the upper part of the hydraulic power clamp body via a damping shaft and is located between the clamping part and the drive part. The top of the boom is connected to the lifting device.

[0009] There are two side boxes, symmetrically arranged on both sides of the clamping part. A partition is provided in the middle of the side box, and the interior of the side box is divided into an upper cavity and a lower cavity.

[0010] A balancing device, located in the upper cavity, is used to adjust the center of gravity of the hydraulic power clamp body.

[0011] A support device, located within the lower cavity, is used to establish a stable support connection between the hydraulic power clamp body and the ground.

[0012] The balancing device includes,

[0013] One drive motor is located at one end of the upper cavity near the clamping part;

[0014] Two rotating bearings are spaced apart in the upper cavity;

[0015] The screw is rotatably mounted on two rotating shaft seats, and one end of the screw is connected to the output shaft of the drive motor.

[0016] The slide rail is installed on the inner wall of the upper cavity and is located between the two pivot seats;

[0017] The counterweight is slidably mounted within the slide rail, with a threaded hole extending laterally through its center. A screw passes through this threaded hole and is threadedly connected to it. A partition plate is longitudinally mounted at one end of the upper cavity near the clamping part, dividing the upper cavity into a control equipment cavity and a balancing mechanism mounting cavity. An electronic level and a microcontroller are also installed within the control equipment cavity. The electronic level, drive motor 1, and the microcontroller are electrically connected.

[0018] The lower cavity bottom surface has an opening at the end away from the drive unit, and the support device includes...

[0019] The storage compartment is rectangular in shape. At the top and bottom of the end of the storage compartment away from the drive unit, there are openings two and three, respectively. The cross-section of opening two is smaller than the cross-section of the outer shell, and the cross-section of opening three is adapted to the cross-section of the outer shell.

[0020] Several support components are provided, which are slidably and vertically installed in the storage compartment. The support components are arranged in a straight line, and the top and bottom of the support components can be detachably connected end to end.

[0021] A spring is installed inside the storage compartment. One end of the spring is connected to the end of the storage compartment near the drive unit, and the other end is provided with a push plate, which is in contact with the push plate support assembly.

[0022] Pushing device one is located on the top of the side box, with its output end pointing towards opening two;

[0023] Pushing device two is located on the outer side of the storage compartment at the end furthest from the drive unit, and is used to drive the longitudinal movement of the support assembly.

[0024] The grounding foot is detachably located at the bottom of the side enclosure, and the top of the grounding foot is detachably connected to the bottommost support component.

[0025] Preferably, the support assembly includes an outer shell, a rotating rod vertically and rotatably disposed within the outer shell, the upper end of the rotating rod being flush with the outer shell, a socket being disposed at the top of the rotating rod, a threaded hole being connected to the bottom end of the socket, a connecting bolt being disposed at the bottom end of the rotating rod extending out of the outer shell, the connecting bolt being threadedly connected to the threaded hole, and a toothed plate being disposed recessed on the side of the support assembly away from the drive unit, the toothed plate being vertically disposed.

[0026] Preferably, the grounding pin includes,

[0027] The base plate is horizontally positioned, and its top surface is equipped with a magnetic sticker A;

[0028] A connecting column is installed on the top of the base plate. The top of the connecting column has three threaded holes, and the connecting column is threadedly connected to the support component.

[0029] Magnet B is placed on the bottom surface of the side box, and magnets A and B are magnetically connected.

[0030] Preferably, the cross-sections of opening one, opening two, opening three, the outer shell, and the connecting column are all square.

[0031] Preferably, the pushing device includes a telescopic rod with its extended end facing downwards. A second drive motor is connected to the extended end of the telescopic rod, and a plug is connected to the output end of the second drive motor. The end of the plug is inserted into a socket, and the plug drives the rotating rod to rotate.

[0032] The second pushing device includes a rotating shaft bracket, on which a gear is rotatably mounted. The gear is driven by a drive motor three located on the outside of the rotating shaft bracket, and the gear meshes with a gear plate.

[0033] Preferably, both the insertion rod and the socket have square cross-sections.

[0034] Preferably, the front side of the outer shell is concave and has a toothed plate 2 arranged laterally. The storage compartment is provided with a rotating shaft support 2 on the front side away from the drive unit. A gear 2 is rotatably arranged on the rotating shaft support 2. The gear 2 is driven by a drive motor 4 arranged on the outside of the rotating shaft support 2. The gear 2 meshes with the toothed plate 2. A magnet C and a magnet D are respectively arranged between two adjacent outer shells. The magnet C and the magnet D are magnetically connected.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0036] This invention incorporates a balancing device, ensuring that the hydraulic power clamp body remains balanced during lifting and clamping, thereby improving overall stability, reducing the burden on manual operation, and increasing work efficiency. This invention also includes a support device, providing the hydraulic power clamp body with both an upper lifting point and a lower support point, further enhancing stability during the installation and disassembly of oil pipe joints. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 This is a sectional view of the side box of the present invention;

[0039] Figure 3 for Figure 1 A partial structural diagram at point A in the middle;

[0040] Figure 4 for Figure 2 A schematic diagram of the partial structure at point B in the middle;

[0041] Figure 5 for Figure 2 A schematic diagram of the partial structure at point C in the middle;

[0042] Figure 6 This is a cross-sectional view of the supporting component of the present invention;

[0043] Figure 7 This is a schematic diagram of the external structure of the support component of the present invention.

[0044] In the diagram: 1. Main body of the hydraulic power clamp; 2. Lifting rod; 3. Side box; 4. Balancing device; 5. Support device; 1-1. Clamping part; 1-2. Drive part; 3-1. Partition 1; 3-2. Opening 1; 4-1. Drive motor 1; 4-2. Rotary shaft seat; 4-3. Screw; 4-4. Counterweight; 4-5. Slide rail; 4-6. Threaded hole 1; 4-7. Partition 2; 4-8. Electronic level; 4-9. Microcontroller; 5-1. Storage compartment; 5-2. Opening 2; 5-3. Opening 3; 5-4. Support assembly; 5-5. Spring; 5-6. Push plate; 5-7. Pushing device 1; 5-8. Pushing device 2; 5-9 5-41. Grounding foot; 5-42. Outer shell; 5-43. Rotating rod; 5-44. Threaded hole two; 5-45. Connecting bolt; 5-46. Tooth plate one; 5-47. Tooth plate two; 5-71. Telescopic rod; 5-72. Drive motor two; 5-73. Insert rod; 5-81. Rotating shaft bracket one; 5-82. Gear one; 5-83. Drive motor three; 5-91. Base plate; 5-92. Magnet A; 5-93. Connecting post; 5-94. Threaded hole three; 5-95. Magnet B; 6-1. Rotating shaft bracket two; 6-2. Gear two; 6-3. Drive motor four; 6-4. Magnet C; 6-5. Magnet D. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0046] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example 1

[0048] like Figures 1-7 As shown in this embodiment, a highly stable hydraulic power clamp includes a hydraulic power clamp body 1, a boom 2, a side housing 3, a balancing device 4, and a support device 5. The hydraulic power clamp body 1 includes a clamping part 1-1 and a driving part 1-2. The lower end of the boom 2 is rotatably mounted on the upper part of the hydraulic power clamp body 1 via a damping shaft and is located between the clamping part 1-1 and the driving part 1-2. The top of the boom 2 is connected to a lifting device. There are two side housings 3, symmetrically arranged on both sides of the clamping part 1-1. A partition 3-1 is provided in the middle of the side housing 3, and the interior of the side housing 3 is divided into an upper cavity and a lower cavity. The balancing device 4 is located in the upper cavity and is used to adjust the center of gravity position of the hydraulic power clamp body 1. The support device 5 is located in the lower cavity and is used to establish a stable support connection between the hydraulic power clamp body 1 and the ground.

[0049] In this embodiment, the balancing device 4 includes a drive motor 4-1, a rotating shaft seat 4-2, a screw 4-3, and a counterweight 4-4. The drive motor 4-1 is located at one end of the upper cavity near the clamping part 1-1. Two rotating shaft seats 4-2 are provided and spaced apart on the inner wall of the upper cavity. The screw is rotatably disposed between the two rotating shaft seats 4-2. One end of the screw 4-3 is connected to the output shaft of the drive motor 4-1. A slide rail 4-5 is disposed on the inner wall of the upper cavity and located between the two rotating shaft seats 4-2. The counterweight 4-4 is slidably disposed in the slide rail 4-5, and a threaded hole 4-6 is provided transversely through its middle part. The screw 4-3 passes through the threaded hole 4-6 and is threadedly connected to it.

[0050] In this embodiment, a partition 4-7 is longitudinally arranged at one end of the upper cavity near the clamping part 1-1, dividing the upper cavity into a control equipment cavity and a balancing mechanism mounting cavity. An electronic level 4-8 and a microcontroller 4-9 are also arranged in the control equipment cavity. The electronic level 4-8, the drive motor 4-1, and the microcontroller 4-9 are electrically connected.

[0051] In this embodiment, an opening 3-2 is provided at the end of the bottom surface of the lower cavity away from the driving part 1-2.

[0052] In this embodiment, the support device 5 includes a storage compartment 5-1, which is a rectangular structure. The top and bottom of the end of the storage compartment 5-1 away from the drive unit 1-2 are respectively provided with an opening 2 5-2 and an opening 3 5-3.

[0053] The storage compartment 5-1 is equipped with several support components 5-4. The support components 5-4 are slidably and vertically installed in the storage compartment 5-1. The support components 5-4 are arranged in a straight line. A spring 5-5 is connected to one end of the storage compartment 5-1 near the drive unit 1-2. A push plate 5-6 is installed at the other end of the spring 5-5. The push plate 5-6 is in contact with the support components 5-4. A push device 5-7 is installed above the top of the second opening 5-2. The push device 5-7 is located on the top of the side box 3, and its output end points towards the second opening 5-2. A push device 5-8 is installed on the outer side of the end of the storage compartment 5-1 away from the drive unit 1-2. It is used to drive the support components 5-4 to move longitudinally. A grounding foot 5-9 is detachably installed at the bottom of the side box 3.

[0054] In this embodiment, the support assembly 5-4 includes an outer shell 5-41, a vertically rotatable rotating rod 5-42 inside the outer shell 5-41, the upper end of the rotating rod 5-42 being flush with the outer shell 5-41, a socket 5-43 being provided at the top of the rotating rod 5-42, a threaded hole 5-44 being connected to the bottom end of the socket 5-43, a connecting bolt 5-45 being provided at the bottom end of the rotating rod 5-42 extending out of the outer shell 5-41, and the connecting bolt 5-45 being threadedly connected to the threaded hole 5-44. A toothed plate 5-46 is provided recessed on the side of the support assembly 5-4 away from the drive part 1-2, and the toothed plate 5-46 is vertically arranged.

[0055] In this embodiment, the grounding foot 5-9 includes a base plate 5-91, which is horizontally arranged and has a magnetic sticker A5-92 on its top surface. A connecting post 5-93 is also provided on the top of the base plate 5-91, and a threaded hole 5-94 is vertically provided on the top of the connecting post 5-93. The connecting post 5-93 is threadedly connected to the support component 5-4. A magnetic sticker B5-95 is provided on the bottom surface of the side box 3, and magnetic stickers A5-92 and B5-95 are magnetically connected.

[0056] In this embodiment, the cross-sections of opening 1 3-2, opening 2 5-2, opening 3 5-3, outer shell 5-41 and connecting post 5-93 are all square. The cross-section of opening 2 5-2 is smaller than the cross-section of outer shell 5-41, and the cross-section of opening 3 5-3 is adapted to the cross-section of outer shell 5-41.

[0057] In this embodiment, the pushing device 5-7 includes a telescopic rod 5-71, with the extended end of the telescopic rod 5-71 facing downwards. A second drive motor 5-72 is connected to the extended end of the telescopic rod 5-71, and an insertion rod 5-73 is connected to the output end of the second drive motor 5-72. The end of the insertion rod 5-73 is inserted into the insertion port 5-43, and the insertion rod 5-73 drives the rotating rod 5-42 to rotate. The telescopic rod is an electrically controlled telescopic rod.

[0058] In this embodiment, the second pushing device 5-8 includes a rotating shaft bracket 5-81, on which a gear 5-82 is rotatably mounted. The gear 5-82 is driven by a third driving motor 5-83 located on the outside of the rotating shaft bracket 5-81, and the gear 5-82 meshes with a toothed plate 5-46.

[0059] In this embodiment, both the insertion rod 5-73 and the insertion port 5-43 have square cross-sections.

[0060] In this embodiment, the front side of the outer shell 5-41 is concave and laterally provided with a toothed plate 5-47. The storage compartment 5-1 is provided with a rotating shaft bracket 6-1 on the front side away from the drive unit 1-2. A gear 6-2 is rotatably provided on the rotating shaft bracket 6-1. The gear 6-2 is driven by a drive motor 6-3 located on the outside of the rotating shaft bracket 6-1. The gear 6-2 meshes with the toothed plate 5-47. Magnets C6-4 and D6-5 are respectively provided between two adjacent outer shells 5-41. Magnets C6-4 and D6-5 are magnetically connected.

[0061] The working principle of the above technical solution is as follows:

[0062] When using,

[0063] The first step involves suspending the hydraulic clamp body by connecting the hoisting device to the top of the boom 2. After hoisting, the electronic level 4-8 detects the horizontal tilt and transmits the data to the microprocessor. The microprocessor then controls the drive motor 4-1 to rotate based on the received data, thereby moving the counterweight 4-4 towards the lifted end. This changes the center of gravity of the hydraulic clamp body, keeping it level. During the initial suspension phase, the damping shaft also reduces the swaying frequency of the hydraulic clamp body, making the adjustment process of the balancing device more convenient.

[0064] The second step is to clamp the oil pipe using the clamping part 1-1.

[0065] The third step involves establishing a stable support with the ground using support device 5. The working principle is as follows: microprocessor controls the extension rod to extend, allowing the insertion rod 5-73 to insert into the socket 5-43. Simultaneously, drive motor 5-72 rotates, connecting bolt 5-45 at the bottom of support assembly 5-4 to connect with threaded hole 5-94. After connection, telescopic rod 5-71 retracts, disengaging insertion rod 5-73 from socket 5-43. Then, drive motor 5-83 is activated, and through the meshing of gear 5-82 and toothed plate 5-46, the end of storage compartment 5-1 is... Support component 5-4 is pushed downwards, thereby extending the support foot. After one support component 5-4 is extended, the microprocessor controls drive motor 6-3 to rotate, pushing the next support component 5-4 to the end of storage compartment 5-1. Other support components 5-4 move forward under the action of spring 5-5. This process is repeated until the support components 5-4 are connected end-to-end, allowing the support foot to contact the ground. When the pressure sensor on the bottom surface of base plate 5-91 detects contact with the ground, the microprocessor controls drive motor 5-83 to stop rotating. In this embodiment, the control processor controls the operation of each component using a timing method. To improve efficiency, sensors can be used to detect whether each component has reached a predetermined position, thus quickly proceeding to the next step; this will not be elaborated further. During the continuous displacement of the support component 5-4, the balancing device 4 continues to operate, keeping the hydraulic power clamp body in a balanced state.

[0066] The fourth step is recycling. The recycling process is the reverse of the above process. First, drive motor 3 (5-83) rotates in the opposite direction to lift the support component. Then, telescopic rod 5-71 extends. Drive motor 2 (5-72) reverses to separate the two support components 5-4 or the support component 5-4 from the support foot. Then, drive motor 4 (6-3) rotates to recycle the separated support component 5-4 into the storage compartment 5-1. This process is repeated until the bottom plate 5-91 contacts the bottom surface of the side box 3.

[0067] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0068] This invention incorporates a balancing device 4, ensuring that the hydraulic power clamp body remains balanced during lifting and clamping, thereby improving overall stability, reducing the burden on manual operation, and increasing work efficiency. This invention also includes a support device 5, providing the hydraulic power clamp body with both an upper lifting point and a lower support point, further enhancing stability during the installation and disassembly of oil pipe joints. Example 2

[0069] In this embodiment, in order to increase the extension length of the support device 5, detachable end caps are provided at the tail of the storage compartment 5-1 and the end of the lower cavity to supplement the support component 5-4, thereby increasing the overall extension length and improving adaptability.

[0070] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A highly stable hydraulic power clamp, characterized in that, The utility model relates to a hydraulic power tong, which comprises a hydraulic power tong body (1), a boom (2), a side tank (3), a balancing device (4) and a supporting device (5). The hydraulic power tong body (1) comprises a clamping part (1-1) and a driving part (1-2). The lower end of the boom (2) is rotatably arranged on the upper part of the hydraulic power tong body (1) and located between the clamping part (1-1) and the driving part (1-2). The side tank (3) is arranged symmetrically on both sides of the clamping part (1-1). The balancing device (4) is arranged in the upper cavity and used for adjusting the gravity center position of the hydraulic power tong body (1). The supporting device (5) is arranged in the lower cavity and used for establishing stable support connection between the hydraulic power tong body (1) and the ground. The balancing device (4) comprises a driving motor (4-1), two rotating shaft seats (4-2), a screw rod (4-3), a sliding rail (4-5) and a counterweight (4-4). The driving motor (4-1) is arranged at one end of the upper cavity close to the clamping part (1-1). The two rotating shaft seats (4-2) are arranged in the upper cavity. The screw rod (4-3) is rotatably arranged on the two rotating shaft seats (4-2). The sliding rail (4-5) is arranged on the inner wall of the upper cavity and located between the two rotating shaft seats (4-2). The counterweight (4-4) is slidably arranged in the sliding rail (4-5). The upper cavity is longitudinally provided with a partition plate (4-7) at one end close to the clamping part (1-1), thereby separating the upper cavity into a control device cavity and a balancing mechanism installation cavity. The control device cavity is further provided with an electronic level (4-8) and a microcontroller (4-9). The electronic level (4-8), the driving motor (4-1) and the microcontroller (4-9) are electrically connected. The lower cavity is provided with an opening (3-2) at one end away from the driving part (1-2). The supporting device (5) comprises a storage bin (5-1), an opening (5-2), an opening (5-3), a support assembly (5-4) and a spring (5-5). The storage bin (5-1) is arranged in the sliding rail (4-5). The support assembly (5-4) is slidably and vertically arranged in the storage bin (5-1). The support assembly (5-4) is arranged in a straight line. The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). 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The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5-5) is arranged in the storage bin (5-1). The spring (5- The second pushing device (5-8) is arranged outside the one end of the storage bin (5-1) away from the driving part (1-2) and is used for driving the vertical movement of the supporting assembly (5-4) The grounding foot (5-9) is detachably arranged at the bottom of the side box body (3), and the top end of the grounding foot (5-9) is detachably connected with the lowermost supporting assembly (5-4).

2. The hydraulic power tongs according to claim 1, wherein The supporting assembly (5-4) comprises an outer shell (5-41), a rotating rod (5-42) vertically and rotatably arranged in the outer shell (5-41), the upper end of the rotating rod (5-42) flush with the outer shell (5-41), a socket (5-43) arranged at the top of the rotating rod (5-42), a second threaded hole (5-44) connected with the bottom end of the socket (5-43), a connecting bolt (5-45) arranged at the bottom end of the rotating rod (5-42) and extending out of the outer shell (5-41), the connecting bolt (5-45) is threadedly connected with the second threaded hole (5-44), and the side of the supporting assembly (5-4) away from the driving part (1-2) is provided with a concave tooth plate (5-46) arranged vertically.

3. The hydraulic power tongs according to claim 2, wherein The grounding foot (5-9) comprises, A bottom plate (5-91) is horizontally arranged, and a magnetic sticker A (5-92) is arranged on the top surface of the bottom plate (5-91); A connecting column (5-93) is arranged at the top of the bottom plate (5-91), and a third threaded hole (5-94) is vertically arranged at the top of the connecting column (5-93), the connecting column (5-93) is threadedly connected with the supporting assembly (5-4); A magnetic sticker B (5-95) is arranged on the bottom surface of the side box body (3), and the magnetic sticker A (5-92) is magnetically connected with the magnetic sticker B (5-95).

4. The hydraulic power tongs according to claim 3, wherein The cross sections of the opening one (3-2), the opening two (5-2), the opening three (5-3), the outer shell (5-41) and the connecting column (5-93) are all square.

5. The hydraulic power tongs with high stability according to claim 1, wherein The first pushing device (5-7) comprises a telescopic rod (5-71), the extending end of the telescopic rod (5-71) is arranged downward, a second driving motor (5-72) is connected and arranged at the extending end of the telescopic rod (5-71), a plug rod (5-73) is connected and arranged at the output end of the second driving motor (5-72), the end of the plug rod (5-73) is inserted into the socket (5-43), and the plug rod (5-73) drives the rotating rod (5-42) to rotate, The second pushing device (5-8) comprises a rotating shaft support one (5-81), a gear one (5-82) is rotatably arranged on the rotating shaft support one (5-81), the gear one (5-82) is driven by a third driving motor (5-83) arranged outside the rotating shaft support one (5-81), and the gear one (5-82) is engaged with the tooth plate one (5-46).

6. The hydraulic power tongs according to claim 5, wherein The cross sections of the plug rod (5-73) and the socket (5-43) are all square.

7. The hydraulic power tongs with high stability according to claim 5, characterized in that, The outer shell (5-41) is concave in the front side and transversely provided with a second toothed plate (5-47), the end of the receiving bin (5-1) away from the driving part (1-2) is provided with a second rotating shaft support (6-1) on the front side, the second rotating shaft support (6-1) is provided with a second gear (6-2) rotatingly, the second gear (6-2) is driven by a fourth driving motor (6-3) provided on the outer side of the second rotating shaft support (6-1), the second gear (6-2) is engaged with the second toothed plate (5-47), a magnetic sticker C (6-4) and a magnetic sticker D (6-5) are respectively arranged between two adjacent outer shells (5-41), and the magnetic sticker C (6-4) and the magnetic sticker D (6-5) are magnetically connected.

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