Electric power engineering oil-immersed power transformer convenient to install

Abstract

The invention relates to the technical field of power transformer equipment, and particularly discloses an electric power engineering oil-immersed power transformer convenient to install, which comprises a cuboid-shaped body, and the upper surface of the body is fixedly connected with a top plate. When the air pressure groove conveys air into the inserting pipe, the air pressure can enter the mounting pipe through the air pressure hole, namely, the air pressure in the mounting pipe is gradually increased, and then a pushing force is generated on the pushing plate through the auxiliary groove, so that the pushing plate moves towards the outer side along the limiting rod; according to the transformer installation device, the insertion plate is moved out of the insertion groove to be inserted into a hole reserved in the cement base, then the transformer is rapidly installed, the installation steps are greatly reduced, the installation efficiency is improved, the insertion plate can be effectively protected by arranging the insertion plate in the insertion pipe at the initial time, and the installation efficiency of the transformer is improved. And the situation that the plug board is bent and cannot be plugged and installed in the transportation process is avoided, so that the working stability of the transformer is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power transformer equipment, in particular to an oil-immersed power transformer for electric power engineering which is easy to install. Background Art

[0002] Oil-immersed power transformer is a common power equipment, mainly used for voltage conversion and transmission in power systems.

[0003] In the field of power engineering, oil-immersed power transformers are widely used in the power transmission and distribution process of various power systems as a key power equipment. Traditional oil-immersed power transformers usually face some challenges and problems during the installation process. First, the installation of traditional transformers often requires multiple steps, including positioning, fixing and connecting the transformer body to the base. These steps are not only time-consuming and labor-intensive, but also require professional technicians to operate, thereby increasing the installation cost and time. Secondly, during transportation, due to the characteristics of its structure, the transformer is easily affected by bumps and vibrations, which causes some parts of the transformer, especially thin parts such as plug-in boards, to bend or deform easily, which will affect the plug-in installation of the transformer and may even cause the transformer to fail to work properly. In addition, the stability of the transformer is also an important factor to be considered during the installation process. In strong winds or other harsh environments, the stability of the transformer is directly related to the safety and reliability of its operation. The traditional transformer installation method may not provide sufficient stability, especially when the transformer needs to be fixed on a structure such as an outdoor cement base. How to ensure the stability and wind resistance of the transformer is a problem that needs to be solved. Summary of the invention

[0004] The present invention provides an oil-immersed power transformer for electric power engineering which is easy to install and solves the problems mentioned in the above background technology.

[0005] To achieve the above purpose, the present invention is implemented by the following technical scheme: an oil-immersed power transformer for electric power engineering that is easy to install, comprising a body, the body being in a rectangular shape, a top plate being fixedly connected to the upper surface of the body, heat sinks being symmetrically fixedly installed on the four side surfaces of the body, a high-voltage bushing being fixedly connected to the upper surface of the top plate, a low-voltage bushing being fixedly connected to the side of the upper surface of the top plate away from the high-voltage bushing, an oil pipe being fixedly connected to the upper edge surface of the top plate, and further comprising: A fixing mechanism, the fixing mechanism is fixedly mounted on the bottom of the body, and the fixing mechanism is used to fix the bottom of the body; A stabilizing mechanism, which is fixedly mounted around the top of the fixing mechanism and is used to work in conjunction with the fixing mechanism; The fixing mechanism comprises a pressure hood, the upper surface of which is fitted on the lower surface of the body, the bottom of the pressure hood is slidably connected to a base plate, the upper surface of the base plate is slidably plugged with a slide rod, four slide rods are provided, the top of the slide rod is fixedly connected to the bottom inner surface of the pressure hood, the upper surface of the base plate is fixedly connected to a first clamping plate, the first clamping plate is slidably penetrated and connected to the outer surface of the slide rod, the upper surface of the first clamping plate is fixedly connected to a corrugated ring, the corrugated ring is arranged in a rectangular shape, the top of the corrugated ring is fixedly connected to a second clamping plate, and the upper surface of the second clamping plate is fixedly connected to the inner bottom surface of the pressure hood.

[0006] An air pressure groove is penetrated through the middle upper surface of the bottom plate, and the air pressure groove penetrates the first clamping plate. A plug-in tube is fixedly connected to the middle bottom surface of the bottom plate, and the plug-in tube is arranged directly below the air pressure groove. The bottom of the plug-in tube is arranged to be closed.

[0007] Preferably, a plug-in groove is provided through the side surface of the plug-in tube, the plug-in groove is horizontally arranged, three of the plug-in grooves are arranged as a group, three groups of the plug-in grooves are arranged at fixed intervals around the central axis of the plug-in tube, and a mounting tube is fixedly connected to the bottom inner surface of the plug-in tube, and the mounting tube and the plug-in tube are arranged on the same central axis.

[0008] Preferably, an air pressure hole is opened through the top upper surface of the mounting tube, and a support block is fixedly connected to the top upper surface of the mounting tube, three of the support blocks are arranged at fixed intervals around the central axis of the mounting tube, the top of the support block is fixedly connected to the bottom surface of the base plate, and an auxiliary groove is opened through the side surface of the mounting tube, and three of the auxiliary grooves are opened at fixed intervals around the central axis of the mounting tube.

[0009] Preferably, a limit rod is fixedly connected to the side surface of the mounting tube, and the limit rods are arranged in a group of four, and three groups of the limit rods are arranged at fixed intervals around the central axis of the mounting tube, the limit rod is arranged on the outside of the auxiliary groove, and one end of the limit rod away from the mounting tube is fixedly connected to the inner surface of the plug-in tube, and a push plate is slidably inserted on the limit rod, the push plate is arranged in an arc shape, and the inner surface of the push plate is in close contact with the outer surface of the mounting tube, and the push plate is arranged just outside the auxiliary groove.

[0010] Preferably, the outer surface of the pushing plate is fixedly connected to a plug-in plate, and three plug-in plates are arranged parallel to each other on the same pushing plate, and the plug-in plate is arranged opposite to the plug-in slot. The surface of the plug-in plate away from the pushing plate is initially in the same plane as the outer surface of the plug-in tube, and the inner surface of the pushing plate is fixedly connected to an elastic telescopic rod, and the end of the elastic telescopic rod away from the pushing plate is fixedly connected to a mounting seat, and the mounting seat is fixedly connected to the middle inner surface of the plug-in tube, and the outer surface of the elastic telescopic rod is fixedly connected to a plug-in ring, and the plug-in rod is slidably plugged into the end of the plug-in ring away from the elastic telescopic rod. When it is needed When installing the transformer, the pressure cover can be first plugged into the hole reserved in the cement base through the plug-in tube, so that the bottom surface of the base plate fits in contact with the upper surface of the cement base, and then the voltage body is lifted and placed vertically on the upper surface of the pressure cover. As the voltage body continues to descend, a squeezing force will be generated on the pressure cover due to its own gravity, causing the pressure cover to move downward relative to the base plate. As the pressure cover descends, the distance between the first clamping plate and the second clamping plate will gradually decrease, thereby squeezing the corrugated ring, increasing the cavity air pressure inside the corrugated ring, and transmitting the air pressure to the plug-in tube through the air pressure groove.

[0011] Preferably, the stabilizing mechanism comprises a connecting tube, the connecting tube is fixedly connected to the side surface of the pressure hood, four connecting tubes are provided, the connecting tube is connected to the internal cavity of the corrugated ring, and one end of the connecting tube away from the pressure hood is fixedly connected to a fitting hood.

[0012] Preferably, the interior of the fitting cover is hollow, the outer surface of the fitting cover fits the side surface of the body, a pressure tube is fixedly connected to the bottom inner surface of the fitting cover, and the internal cavity of the pressure tube is connected to the internal cavity of the connecting tube.

[0013] Preferably, a driving tube is fixedly inserted inside the pressure tube, and the driving tube is arranged in an arc shape, and both ends of the driving tube are respectively passed through and fixedly connected to the outer surface of the fitting cover, and a connecting hole is opened through the middle outer surface of the driving tube, and four driving tubes are arranged on the pressure tube at fixed intervals, and a fixing rod is slidably connected inside the driving tube, and a guide rod is slidably inserted inside the fixing rod, and the end of the guide rod away from the fixing rod is fixedly connected to a limiting plate, and the limiting plate is fixedly connected to the inner surface of the driving tube away from the fixing rod, and a fixing hole is opened through the side surface of the main body, and when the pressure cover moves downward, the air pressure inside the corrugated ring will also be transported into the connecting tube, thereby transporting the air pressure into the pressure tube in the fitting cover through the connecting tube, and the driving tube is inserted into the interior of the pressure tube, and the driving tube is connected to the interior of the pressure tube through the connecting hole, so as the internal air pressure of the pressure tube increases, the internal air pressure of the driving tube will also increase, and the two ends inside the driving tube are closed by the fixing rod and the limiting plate.

[0014] The present invention provides an oil-immersed power transformer for electric power engineering that is easy to install. It has the following beneficial effects: 1. The oil-immersed power transformer for electric power engineering which is easy to install, when the air pressure groove is transported into the plug-in tube, it will also enter the installation tube through the air pressure hole, that is, the air pressure in the installation tube is gradually increased, and then a driving force is generated on the push plate through the auxiliary groove, causing the push plate to move outward along the limit rod, so that the plug-in plate moves out of the plug-in groove and completes the plug-in connection with the hole reserved on the cement base, thereby realizing the operation of quickly installing the transformer, greatly reducing the installation steps and improving the installation efficiency. By initially arranging the plug-in plate inside the plug-in tube, the plug-in plate can also be effectively protected to avoid bending of the plug-in plate during transportation and being unable to complete the plug-in installation, thereby improving the working stability of the transformer.

[0015] 2. The oil-immersed power transformer for electric power engineering which is easy to install, when the push plate moves outward, it will also drive the elastic telescopic rod to expand outward, and with the movement of the elastic telescopic rod, the plug-in ring will also move outward accordingly, and then the three elastic telescopic rods will be driven to move with the same amplitude at the same time through the plug-in rod, thereby ensuring that the three push plates move outward with the same amplitude at the same time, so that the three groups of plug-in boards can be effectively plugged in, avoiding the three groups of plug-in boards moving with different amplitudes to reduce the plug-in installation strength, and greatly improving the stability of the transformer during installation.

[0016] 3. The oil-immersed power transformer for electric power engineering which is easy to install, when the air pressure inside the driving tube increases, will push the fixing rod to move outward in an arc shape along the guide rod, and finally the fixing rod will be inserted into the fixing hole on the main body, and pass through the fixing hole to enter the end of the driving tube close to the limit plate, so that the surrounding of the transformer body can be fixed when the transformer is installed, thereby greatly improving the overall structural stability of the transformer after the installation is completed, and when the transformer is installed, the transformer needs to be replaced and the transformer needs to be lifted upward in the vertical direction as a whole before the transformer can be taken out, thereby greatly improving the wind resistance level of the transformer, so that the transformer can maintain good structural stability even in a strong wind environment, avoiding damage to the transformer in a harsh environment and increasing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention; Figure 2 It is a schematic diagram of the connection structure between the fixing mechanism and the stabilizing mechanism of the present invention and the body; Figure 3 It is a structural schematic diagram of the fixing mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the corrugated ring of the present invention; Figure 5It is a structural schematic diagram of the plug-in tube of the present invention; Figure 6 It is a schematic diagram of the internal structure of the plug-in tube of the present invention; Figure 7 It is a structural schematic diagram of the stabilizing mechanism of the present invention; Figure 8 It is a schematic diagram of the disassembled structure of the stabilizing mechanism of the present invention.

[0018] In the figure: 1, body; 2, top plate; 3, heat sink; 4, high-pressure bushing; 5, low-pressure bushing; 6, oil pipe; 7, fixing mechanism; 71, pressure cover; 72, bottom plate; 73, slide rod; 74, first clamping plate; 75, corrugated ring; 76, second clamping plate; 77, air pressure groove; 78, plug-in tube; 79, plug-in groove; 710, mounting tube; 711, air pressure hole; 712, support block; 713, auxiliary groove; 714, limit rod; 715, push plate; 716, plug-in plate; 717, elastic telescopic rod; 718, mounting seat; 719, plug-in ring; 720, plug-in rod; 8, stabilizing mechanism; 81, connecting pipe; 82, fitting cover; 83, pressure pipe; 84, driving pipe; 85, connecting hole; 86, fixing rod; 87, guide rod; 88, limit plate; 89, fixing hole. DETAILED DESCRIPTION

[0019] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: an oil-immersed power transformer for electric power engineering that is easy to install, comprising a body 1, the body 1 is in a rectangular shape, a top plate 2 is fixedly connected to the upper surface of the body 1, heat sinks 3 are symmetrically fixedly installed on the four side surfaces of the body 1, a high-voltage bushing 4 is fixedly connected to the upper surface of the top plate 2, a low-voltage bushing 5 is fixedly connected to the side of the upper surface of the top plate 2 away from the high-voltage bushing 4, an oil pipe 6 is fixedly connected to the upper surface of the edge of the top plate 2, and further comprising: A fixing mechanism 7, the fixing mechanism 7 is fixedly installed at the bottom of the body 1, and the fixing mechanism 7 is used to fix the bottom of the body 1; The stabilizing mechanism 8 is fixedly installed around the top of the fixing mechanism 7, and the stabilizing mechanism 8 is used to cooperate with the fixing mechanism 7 to work; The fixing mechanism 7 includes a pressure hood 71, the upper surface of which is fitted on the lower surface of the body 1, the bottom of the pressure hood 71 is slidably connected to a bottom plate 72, the upper surface of the bottom plate 72 is slidably plugged with a slide bar 73, four slide bars 73 are provided, the top of the slide bar 73 is fixedly connected to the bottom inner surface of the pressure hood 71, the upper surface of the bottom plate 72 is fixedly connected to a first clamping plate 74, the first clamping plate 74 slides through and is connected to the outer surface of the slide bar 73, the upper surface of the first clamping plate 74 is fixedly connected to a corrugated ring 75, the corrugated ring 75 is set in a rectangular shape, the top of the corrugated ring 75 is fixedly connected to a second clamping plate 76, and the upper surface of the second clamping plate 76 is fixedly connected to the inner bottom surface of the pressure hood 71.

[0021] An air pressure groove 77 is penetrated through the middle upper surface of the bottom plate 72, and the air pressure groove 77 is set through the first clamping plate 74. A plug-in tube 78 is fixedly connected to the middle bottom surface of the bottom plate 72, and the plug-in tube 78 is set just below the air pressure groove 77. The bottom of the plug-in tube 78 is set to be closed.

[0022] A plug-in groove 79 is provided through the side surface of the plug-in tube 78. The plug-in groove 79 is arranged horizontally, and three plug-in grooves 79 are arranged as a group. Three groups of plug-in grooves 79 are provided at fixed intervals around the central axis of the plug-in tube 78. A mounting tube 710 is fixedly connected to the bottom inner surface of the plug-in tube 78, and the mounting tube 710 and the plug-in tube 78 are arranged on the same central axis.

[0023] An air pressure hole 711 is formed through the top upper surface of the mounting tube 710, and a support block 712 is fixedly connected to the top upper surface of the mounting tube 710. Three support blocks 712 are arranged at fixed intervals around the central axis of the mounting tube 710. The top of the support block 712 is fixedly connected to the bottom surface of the base plate 72. An auxiliary groove 713 is formed through the side surface of the mounting tube 710. Three auxiliary grooves 713 are arranged at fixed intervals around the central axis of the mounting tube 710.

[0024] The side surface of the mounting tube 710 is fixedly connected to a limiting rod 714, four limiting rods 714 are arranged in a group, and three groups of limiting rods 714 are arranged at fixed intervals around the central axis of the mounting tube 710, the limiting rod 714 is arranged on the outside of the auxiliary groove 713, and one end of the limiting rod 714 away from the mounting tube 710 is fixedly connected to the inner surface of the plug-in tube 78, and a push plate 715 is slidably inserted on the limiting rod 714, and the push plate 715 is arranged in an arc shape, and the inner surface of the push plate 715 is in contact with the outer surface of the mounting tube 710, and the push plate 715 is arranged just outside the auxiliary groove 713.

[0025] The outer surface of the pushing plate 715 is fixedly connected to a plug plate 716, and three plug plates 716 are arranged parallel to each other on the same pushing plate 715. The plug plates 716 are arranged opposite to the plug slots 79. The surface of the plug plate 716 away from the pushing plate 715 is initially in the same plane with the outer surface of the plug tube 78. The inner surface of the pushing plate 715 is fixedly connected to an elastic telescopic rod 717, and the end of the elastic telescopic rod 717 away from the pushing plate 715 is fixedly connected to a mounting seat 718, and the mounting seat 718 is fixedly connected to the middle inner surface of the plug tube 78. The outer surface of the elastic telescopic rod 717 is fixedly connected to a plug ring 719, and the plug rod 720 is slidably plugged into the end of the plug ring 719 away from the elastic telescopic rod 717.

[0026] During operation, when the transformer needs to be installed, the pressure cover 71 can be first inserted into the hole reserved in the cement base through the plug-in tube 78, so that the bottom surface of the bottom plate 72 is in contact with the upper surface of the cement base, and then the transformer body 1 is lifted and placed vertically on the upper surface of the pressure cover 71. As the transformer body 1 continues to descend, a squeezing force will be generated on the pressure cover 71 due to its own gravity, so that the pressure cover 71 moves downward relative to the bottom plate 72. As the pressure cover 71 descends, the first clamping force The distance between the plate 74 and the second clamping plate 76 gradually decreases, thereby squeezing the corrugated ring 75, so that the air pressure in the cavity inside the corrugated ring 75 increases, and the air pressure is transmitted to the plug-in tube 78 through the air pressure groove 77. When the air pressure groove 77 is transported into the plug-in tube 78, it will also enter the installation tube 710 through the air pressure hole 711, that is, the air pressure in the installation tube 710 gradually increases, and then a driving force is generated on the push plate 715 through the auxiliary groove 713, causing the push plate 715 to move outward along the limit rod 714. The plug-in plate 716 is moved out of the plug-in slot 79 and connected to the hole reserved on the cement base, thereby realizing the operation of quickly installing the transformer, greatly reducing the installation steps and improving the installation efficiency. By initially arranging the plug-in plate 716 inside the plug-in tube 78, the plug-in plate 716 can also be effectively protected to avoid bending of the plug-in plate 716 during transportation and inability to complete the plug-in installation, thereby improving the working stability of the transformer. When the push plate 715 moves outward, it will also drive the elastic telescopic rod 717 to expand outward. As the elastic telescopic rod 717 moves, the plug-in ring 719 will also move outward, and then the three elastic telescopic rods 717 are driven by the plug-in rod 720 to move at the same amplitude at the same time, thereby ensuring that the three push plates 715 move outward at the same amplitude at the same time, so that the three groups of plug-in plates 716 can be effectively plugged in, avoiding the three groups of plug-in plates 716 moving at different amplitudes to reduce the plug-in installation strength, thereby greatly improving the stability of the transformer during installation.

[0027] Second embodiment: Figures 1 to 8As shown, the stabilizing mechanism 8 includes a connecting pipe 81, which is fixedly connected to the side surface of the pressure cover 71. Four connecting pipes 81 are provided. The connecting pipe 81 is connected to the internal cavity of the corrugated ring 75. One end of the connecting pipe 81 away from the pressure cover 71 is fixedly connected to a fitting cover 82.

[0028] The interior of the fitting cover 82 is hollow, and the outer surface of the fitting cover 82 fits the side surface of the main body 1. The bottom inner surface of the fitting cover 82 is fixedly connected with a pressure tube 83, and the internal cavity of the pressure tube 83 is connected with the internal cavity of the connecting tube 81.

[0029] A driving tube 84 is fixedly inserted inside the pressure tube 83. The driving tube 84 is arranged in an arc shape. Both ends of the driving tube 84 are respectively passed through and fixedly connected to the outer surface of the fitting cover 82. A connecting hole 85 is penetrated through the middle outer surface of the driving tube 84. Four driving tubes 84 are arranged on the pressure tube 83 at fixed intervals. A fixing rod 86 is slidably connected inside the driving tube 84. A guide rod 87 is slidably inserted inside the fixing rod 86. One end of the guide rod 87 away from the fixing rod 86 is fixedly connected to a limiting plate 88. The limiting plate 88 is fixedly connected to the inner surface of the driving tube 84 away from the fixing rod 86. A fixing hole 89 is penetrated through the side surface of the main body 1.

[0030] During operation, when the pressure cover 71 moves downward, the air pressure inside the corrugated ring 75 will be delivered to the connecting pipe 81, thereby delivering the air pressure to the pressure pipe 83 in the fitting cover 82 through the connecting pipe 81, and the pressure pipe 83 is plugged with a driving pipe 84, and the driving pipe 84 is connected to the inside of the pressure pipe 83 through the connecting hole 85. Therefore, as the internal air pressure of the pressure pipe 83 increases, the internal air pressure of the driving pipe 84 will also increase. The two ends of the driving pipe 84 are closed by the fixing rod 86 and the limiting plate 88. Therefore, when the internal air pressure of the driving pipe 84 increases, the fixing rod 86 will be pushed to move outward in an arc along the guide rod 87, and finally the fixing rod 86 It is inserted into the fixing hole 89 on the main body 1, and passes through the fixing hole 89 to enter the end of the driving tube 84 near the limit plate 88, so that the transformer body 1 can be fixed on all sides when the transformer is installed, thereby greatly improving the overall structural stability of the transformer after the installation is completed. When the transformer is installed, the transformer needs to be replaced and the transformer needs to be lifted upward in the vertical direction as a whole before the transformer can be taken out, thereby greatly improving the wind resistance level of the transformer, so that the transformer can maintain good structural stability even in a strong wind environment, avoiding damage to the transformer in a harsh environment and increasing maintenance costs.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by... does not exclude the existence of other identical elements in the process, method, article or device including the element".

Claims

1. An oil-immersed power transformer for electric power engineering that is easy to install, comprising a body (1), characterized in that: The body (1) is in a rectangular shape, the upper surface of the body (1) is fixedly connected to a top plate (2), the side surfaces of the body (1) are symmetrically fixedly mounted with heat sinks (3), the upper surface of the top plate (2) is fixedly connected to a high-voltage bushing (4), the side of the upper surface of the top plate (2) away from the high-voltage bushing (4) is fixedly connected to a low-voltage bushing (5), the upper surface of the edge of the top plate (2) is fixedly connected to an oil pipe (6), and further comprises: A fixing mechanism (7), the fixing mechanism (7) being fixedly mounted on the bottom of the body (1), and the fixing mechanism (7) being used to fix the bottom of the body (1); A stabilizing mechanism (8), wherein the stabilizing mechanism (8) is fixedly mounted around the top of the fixing mechanism (7), and the stabilizing mechanism (8) is used to cooperate with the fixing mechanism (7) to work; The fixing mechanism (7) comprises a pressure hood (71), the upper surface of which is fitted on the lower surface of the body (1), the bottom of which is slidably connected to a bottom plate (72), the upper surface of which is slidably plugged with a slide bar (73), four of which are provided, the top of which is fixedly connected to the inner surface of the bottom of the pressure hood (71), the upper surface of which is fixedly connected to a first clamping plate (74), which is slidably connected to the outer surface of the slide bar (73), the upper surface of which is fixedly connected to a corrugated ring (75), which is arranged in a rectangular shape, the top of which is fixedly connected to a second clamping plate (76), and the upper surface of which is fixedly connected to the inner bottom surface of the pressure hood (71).

2. The oil-immersed power transformer for electric power engineering that is easy to install according to claim 1 is characterized in that: An air pressure groove (77) is provided through the middle upper surface of the bottom plate (72), and the air pressure groove (77) is provided through the first clamping plate (74). A plug-in tube (78) is fixedly connected to the middle bottom surface of the bottom plate (72), and the plug-in tube (78) is provided directly below the air pressure groove (77), and the bottom of the plug-in tube (78) is provided in a closed state.

3. The oil-immersed power transformer for electric power engineering that is easy to install according to claim 2 is characterized in that: A plug-in groove (79) is provided through the side surface of the plug-in tube (78), the plug-in groove (79) is arranged horizontally, three of the plug-in grooves (79) are arranged in a group, and three groups of the plug-in grooves (79) are arranged around the central axis of the plug-in tube (78) at fixed intervals. A mounting tube (710) is fixedly connected to the inner surface of the bottom of the plug-in tube (78), and the mounting tube (710) and the plug-in tube (78) are arranged on the same central axis.

4. The oil-immersed power transformer for electric power engineering that is easy to install according to claim 3 is characterized in that: An air pressure hole (711) is provided through the top upper surface of the mounting tube (710), and a support block (712) is fixedly connected to the top upper surface of the mounting tube (710). Three support blocks (712) are arranged at fixed intervals around the central axis of the mounting tube (710). The top of the support block (712) is fixedly connected to the bottom surface of the bottom plate (72). An auxiliary groove (713) is provided through the side surface of the mounting tube (710), and three auxiliary grooves (713) are provided at fixed intervals around the central axis of the mounting tube (710).

5. The oil-immersed power transformer for electric power engineering that is easy to install according to claim 4, characterized in that: The side surface of the mounting tube (710) is fixedly connected to a limiting rod (714), four limiting rods (714) are arranged in a group, and three groups of limiting rods (714) are arranged at fixed intervals around the central axis of the mounting tube (710), the limiting rod (714) is arranged on the outside of the auxiliary groove (713), one end of the limiting rod (714) away from the mounting tube (710) is fixedly connected to the inner surface of the plug-in tube (78), and a push plate (715) is slidably plugged on the limiting rod (714), the push plate (715) is arranged in an arc shape, the inner surface of the push plate (715) is in close contact with the outer surface of the mounting tube (710), and the push plate (715) is arranged directly outside the auxiliary groove (713).

6. The oil-immersed power transformer for electric power engineering that is easy to install according to claim 5, characterized in that: The outer surface of the push plate (715) is fixedly connected to a plug plate (716). Three plug plates (716) are arranged in parallel on the same push plate (715). The plug plates (716) are arranged opposite to the plug slots (79). The surface of the plug plate (716) on the side away from the push plate (715) is initially in the same plane as the outer surface of the plug tube (78). The inner surface of the push plate (715) is fixedly connected to an elastic telescopic rod (717). The end of the elastic telescopic rod (717) away from the push plate (715) is fixedly connected to a mounting seat (718). The mounting seat (718) is fixedly connected to the inner surface of the middle part of the plug tube (78). The outer surface of the elastic telescopic rod (717) is fixedly connected to a plug ring (719). The end of the plug ring (719) away from the elastic telescopic rod (717) is slidably plugged with a plug rod (720).

7. The oil-immersed power transformer for electric power engineering that is easy to install according to claim 6, characterized in that: The stabilizing mechanism (8) comprises a connecting pipe (81), the connecting pipe (81) being fixedly connected to the side surface of the pressure hood (71), four connecting pipes (81) being provided, the connecting pipe (81) being connected to the internal cavity of the corrugated ring (75), and one end of the connecting pipe (81) away from the pressure hood (71) being fixedly connected to a fitting hood (82).

8. The oil-immersed power transformer for electric power engineering that is easy to install according to claim 7, characterized in that: The interior of the fitting cover (82) is hollow, the outer surface of the fitting cover (82) fits on the side surface of the body (1), the inner surface of the bottom of the fitting cover (82) is fixedly connected to a pressure tube (83), and the internal cavity of the pressure tube (83) is connected to the internal cavity of the connecting tube (81).

9. The oil-immersed power transformer for electric power engineering that is easy to install according to claim 8, characterized in that: A driving tube (84) is fixedly inserted inside the pressure tube (83), and the driving tube (84) is arranged in an arc shape. Both ends of the driving tube (84) are respectively penetrated and fixedly connected to the outer surface of the fitting cover (82). A connecting hole (85) is penetrated through the outer surface of the middle part of the driving tube (84). Four driving tubes (84) are arranged on the pressure tube (83) at fixed intervals. A fixing rod (86) is slidably connected inside the driving tube (84). A guide rod (87) is slidably inserted inside the fixing rod (86). One end of the guide rod (87) away from the fixing rod (86) is fixedly connected to a limiting plate (88). The limiting plate (88) is fixedly connected to the inner surface of the driving tube (84) away from the fixing rod (86). A fixing hole (89) is penetrated through the side surface of the body (1).

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