High-stability adjustable box transformer

Abstract

This invention relates to the field of power equipment, and more particularly to a highly stable adjustable prefabricated transformer, comprising a transformer, a mounting frame, hydraulic rods, and a base frame; the mounting frame is installed around the transformer; the mounting frame is formed by two crossbeams and two longitudinal beams fixedly connected together; at least two hydraulic rods are connected to each longitudinal beam; all hydraulic rods on each longitudinal beam are connected to a base frame. This invention achieves the effect of pressing a pressure plate against soft ground via traveling wheels. As the traveling wheels sink into the soft ground, the pressure plate presses the ground near the wheel surface into a slope. When the traveling wheels move again, they can move smoothly directly from the sloped ground, avoiding the traveling wheels collapsing into the soft ground due to high load, thus preventing subsequent movement difficulties. Simultaneously, when the traveling wheels contact the ground, the pressure plate abuts against the traveling wheels, preventing the traveling wheels from moving the transformer during the process of lifting it off the ground.

Description

Technical Field

[0001] This invention relates to the field of power equipment, and more particularly to a highly stable adjustable transformer substation. Background Technology

[0002] Mobile box-type transformers are commonly used power equipment for emergency power supply, temporary construction, equipment maintenance, etc., especially in mines. As mining progresses, the power grid system needs to be relocated, and mobile transformers are the best choice. However, existing mobile transformers move by means of wheels. When the transformer is placed on soft ground, due to the heavy load and long-term static placement, the wheels are prone to sinking into the ground, making subsequent movement difficult. If the wheels are retracted after placement, and then the transformer is moved again, the reaction force between the wheels and the ground is used to lift the transformer through the lifting structure. The transformer's weight changes from a large area of ​​contact with the ground to a small area of ​​contact through the wheels in a short time, which still puts pressure on the wheels and causes them to sink into the ground. Summary of the Invention

[0003] To overcome the drawbacks of mobile box-type transformers that are placed on soft ground for extended periods, causing the wheels to easily sink into the ground and making subsequent relocation difficult, this invention provides a highly stable adjustable box-type transformer.

[0004] The technical solution is as follows: A highly stable adjustable prefabricated transformer includes a transformer and a mounting frame installed around the transformer. The mounting frame is formed by two crossbeams and two longitudinal beams. It also includes hydraulic rods, a base frame, connecting components, traveling wheels, pressure plates, and a protective box assembly. At least two hydraulic rods are connected to each longitudinal beam. All hydraulic rods on each longitudinal beam are connected to a base frame. The hydraulic rods extend and retract to adjust the distance between the base frame and the longitudinal beams. Two connecting components are installed on the base frame. The connecting components are connected to traveling wheels. The connecting components are used to adjust the direction of the traveling wheels. Each connecting component is damped and rotatably connected to two pressure plates for limiting the traveling wheels. The two pressure plates are located on both sides of the wheel surface. A protective box assembly for protecting the transformer is provided on the mounting frame.

[0005] As an improvement to the above solution, a single connecting component includes: a rotating shaft, a connecting plate, and a connecting shaft; the rotating shaft is rotatably connected to the base frame; the connecting plate is fixedly connected to the rotating shaft; the connecting shaft is fixedly connected to the lower side of the connecting plate; the connecting shaft is rotatably connected to a traveling wheel; and the pressure plate is rotatably connected to the connecting shaft.

[0006] As an improvement to the above scheme, it also includes limit pins, connecting rings, and rotating blocks; at least two connecting rings are rotatably connected to the longitudinal beam; each connecting ring is fixedly connected to the telescopic end of a hydraulic rod; several limit holes are provided on the connecting rings; at least two limit pins for locking the connecting rings are slidably connected to the longitudinal beam; the limit pins are adapted to the limit holes; two rotating blocks are rotatably connected to the base frame; the rotating shaft passes through the corresponding rotating block and is rotatably connected to it; the base frame is provided with inclined grooves for limiting the rotation angle of the rotating blocks.

[0007] As an improvement to the above solution, the protective enclosure assembly includes: fins and a protective enclosure; several fins for heat dissipation are fixedly attached to the transformer shell; the fins are horizontally oriented; the protective enclosure is fixedly attached to the mounting bracket, the lower part of the protective enclosure is open, and the upper part of the protective enclosure is provided with a ventilation opening.

[0008] As an improvement to the above scheme, side baffles are also included; each pressure plate has a side baffle fixed to each side to block soil.

[0009] As an improvement to the above solution, a hexagonal nut adapted to a wrench tool is fixed to the top of the shaft.

[0010] As an improvement to the above solution, the distance between the mounting bracket and the transformer is at least 20cm, and the mounting bracket serves to surround and isolate the transformer.

[0011] As an improvement to the above scheme, it also includes sliders and support columns; at least two sliders are slidably connected to each base frame; a support column for increasing the stability of the diagonal support is slidably connected to each slider; the sliders are used to adjust the position of the support column; a C-shaped block is slidably connected to each slider; several adjustment holes are provided on the support column; several slots are provided on the base frame; the two horizontal sides of the C-shaped block are respectively inserted into the adjustment holes and slots.

[0012] As an improvement to the above solution, the bottom of the support column is shaped like a ball to prevent the wires from falling off along the axial direction of the support column.

[0013] As an improvement to the above solution, the support column and the slider are damped and slide to prevent them from falling off directly after unlocking.

[0014] Compared with the prior art, the present invention has the following advantages: the traveling wheel presses the pressure plate against the soft ground. As the traveling wheel sinks into the soft ground, the pressure plate presses the ground near the wheel surface into a slope. When the traveling wheel moves again later, it can move smoothly directly from the slope, avoiding the traveling wheel from collapsing into the soft ground due to high load, which would cause subsequent movement difficulties. At the same time, when the traveling wheel contacts the ground, the pressure plate holds the traveling wheel in place, preventing the traveling wheel from moving the transformer during the process of lifting the transformer off the ground.

[0015] By rotating the hydraulic rod, base frame, connecting components, and wheels outwards, the overall area of ​​the lower side of the invention is increased, improving support stability and preventing tilting or tipping when moving on sloping or uneven surfaces. After the invention is placed in position, the hydraulic rod, base frame, connecting components, and wheels are rotated back to a vertical position and stored away, reducing the footprint and preventing excessive size from obstructing or hindering workers from connecting electrical wires. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the highly stable adjustable box-type transformer of the present invention;

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the transformer of the present invention;

[0018] Figure 3 This is a front view of the invention, showing the bottom of the traveling wheel higher than the bottom of the transformer.

[0019] Figure 4 This is a three-dimensional structural diagram of the longitudinal beam, hydraulic rod, base frame, and traveling wheels of the present invention from a first perspective;

[0020] Figure 5 This is a three-dimensional structural diagram of the longitudinal beam, hydraulic rod, base frame, and traveling wheels of the present invention from a second perspective;

[0021] Figure 6 This is a three-dimensional structural diagram of the connecting component, the traveling wheel, and the pressure plate of the present invention;

[0022] Figure 7 This is a front view of the hydraulic rod and base frame of the present invention in an inclined state;

[0023] Figure 8 This is a three-dimensional structural diagram of the present invention, showing the hydraulic rod and base frame on one side in an inclined state.

[0024] Figure 9 This is a three-dimensional structural diagram of the base frame, slider, and support column of the present invention;

[0025] Figure 10 This is a three-dimensional structural diagram of the hydraulic rod and base frame of the present invention flipping upwards.

[0026] The labels in the diagram are as follows: 1-Transformer, 101-Fin, 2-Mounting bracket, 201-Crossbeam, 202-Longitudinal beam, 203-Limit pin, 204-Protective housing, 3-Hydraulic rod, 301-Connecting ring, 302-Limiting hole, 4-Base frame, 401-Rotating block, 402-Inclined groove, 403-Slot, 5-Connecting assembly, 51-Rotating shaft, 52-Connecting plate, 53-Connecting shaft, 6-Walking wheel, 7-Pressure plate, 701-Side baffle, 8-Slider, 801-C-block, 9-Support column, 901-Adjusting hole. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: A highly stable adjustable box-type transformer, such as Figures 1-8 As shown, it includes a transformer 1 and a mounting frame 2; the mounting frame 2 is welded onto the outer casing of the transformer 1; the mounting frame 2 is formed by welding two crossbeams 201 and two longitudinal beams 202.

[0029] It also includes hydraulic rods 3, a base frame 4, connecting components 5, traveling wheels 6, pressure plates 7, and a protective box assembly; two hydraulic rods 3 are connected to each longitudinal beam 202; all hydraulic rods 3 on each longitudinal beam 202 are connected to a base frame 4; the hydraulic rods 3 extend and retract to adjust the distance between the base frame 4 and the longitudinal beam 202, thereby adjusting the height of the invention; two connecting components 5 are installed on the base frame 4; the connecting components 5 are connected to traveling wheels 6; the connecting components 5 are used to adjust the direction of the traveling wheels 6, thereby changing the direction of movement of the invention; two pressure plates 7 are damped and rotatably connected to each connecting component 5; the two pressure plates 7 are located on both sides of the wheel surface of the traveling wheels 6; a protective box assembly is provided on the mounting frame 2.

[0030] A single connecting component 5 includes: a rotating shaft 51, a connecting plate 52, and a connecting shaft 53; the rotating shaft 51 is rotatably connected to the base frame 4; the connecting plate 52 is fixedly connected to the bottom of the rotating shaft 51; the connecting shaft 53 is fixedly connected to the lower side of the connecting plate 52; the connecting shaft 53 is rotatably connected to a traveling wheel 6; the pressure plate 7 is rotatably connected to the connecting shaft 53; by rotating the rotating shaft 51, the connecting plate 52, the connecting shaft 53, and the traveling wheel 6 are driven to rotate, changing the orientation of the traveling wheel 6, thereby changing the movement direction of the present invention.

[0031] It also includes a limit pin 203, a connecting ring 301, and a rotating block 401; two connecting rings 301 are rotatably connected to the longitudinal beam 202; each connecting ring 301 is fixedly connected to the telescopic end of a hydraulic rod 3; several limit holes 302 are provided on the connecting ring 301; two limit pins 203 are slidably connected to the longitudinal beam 202; the limit pins 203 are adapted to the limit holes 302, and when the limit pins 203 are inserted into the limit holes 302, they lock the connecting rings 301, preventing them from rotating relative to the longitudinal beam 202; two rotating blocks 401 are rotatably connected to the base frame 4; the rotating shaft 51 passes through the corresponding rotating block 401 and is rotatably connected to it; the base frame 4 is provided with a sloping groove 402; when the rotating block 401 rotates, it drives the connecting assembly 5 to rotate, and when the connecting plate 52 enters the sloping groove 402 and abuts against its inner wall, it limits the rotation limit angle of the rotating block 401.

[0032] The protective enclosure assembly includes: fins 101 and a protective enclosure 204; several fins 101 are fixedly attached to the outer shell of the transformer 1; the fins 101 are horizontally oriented, which facilitates the flow of air between adjacent fins 101 by external wind; the protective enclosure 204 is welded onto the mounting frame 2, the lower part of the protective enclosure 204 is open, and the upper part of the protective enclosure 204 is provided with a ventilation opening to maintain air circulation for cooling of the transformer 1, while blocking sunlight exposure and rain from wetting the transformer 1; the side wall panels of the protective enclosure 204 can be opened.

[0033] It also includes side baffles 701; each pressure plate 7 has a side baffle 701 welded on each side to prevent soil from reaching the surface of the pressure plate 7 when the connecting assembly 5 drives the walking wheel 6 to rotate.

[0034] A hexagonal nut is welded to the top of the shaft 51.

[0035] By setting the aforementioned hexagonal nut, the wrench tool can engage the hexagonal nut, making it easy to rotate the shaft 51.

[0036] The distance between the mounting frame 2 and the transformer 1 is at least 20m. The mounting frame 2 serves to surround and isolate the transformer 1 to prevent workers from accidentally touching it during the operation of the transformer 1.

[0037] The steps for using this invention are as follows:

[0038] When temporary circuits need to be laid to move the invention to the mining area, the invention is initially as follows: Figure 2 In the indicated state, hydraulic rod 3 is extended, the traveling wheel 6 is in contact with the ground, and the bottom of transformer 1 is suspended in the air. Then, the trailer is connected to the mounting frame 2 of the present invention, which moves the present invention to the placement point. Then, the hydraulic rod 3 is controlled to retract, shortening the distance between the longitudinal beam 202 and the base frame 4. The transformer 1 and the mounting frame 2 move down as a whole until the bottom of transformer 1 touches the ground, and transformer 1 is placed stably. Then, the hydraulic rod 3 continues to retract, which will move the base frame 4, connecting component 5 and traveling wheel 6 up. The traveling wheel 6 leaves the ground, and the present invention is placed in the current position. Then, the wires are connected to transformer 1 to complete the temporary circuit layout, and the circuit system is in normal use.

[0039] When the invention needs to be moved elsewhere, the worker first rotates the pressure plate 7, causing the lower side of the pressure plate 7 to move against the wheel surface of the traveling wheel 6 until it reaches the lowest point of the traveling wheel 6, i.e. Figure 6As shown in the diagram, the hydraulic rod 3 is then extended to push the base frame 4, connecting assembly 5, and traveling wheel 6 downwards until the traveling wheel 6 contacts the ground. During this process, the traveling wheel 6 presses the pressure plate 7 against the ground, preventing the traveling wheel 6 from moving during the lifting of the transformer 1 and mounting frame 2. The hydraulic rod 3 continues to extend, and the traveling wheel 6 comes into contact with the ground, which will cause the transformer 1 and mounting frame 2 to rise. The bottom surface of the transformer 1 will detach from the ground, and the entire weight of the invention will act on the ground through the traveling wheel 6. The traveling wheel 6 sinks into the soft ground, but at this time, the pressure plate 7 is close to the lowest point of the traveling wheel 6 and is inclined. While the traveling wheel 6 sinks into the ground, the pressure plate 7 presses the ground near the wheel surface of the traveling wheel 6 into a slope. When the hydraulic rod 3 is fully extended and the transformer 1 and mounting frame 2 are raised to their positions, the worker rotates the pressure plate 7 to reset it upwards along the wheel surface of the traveling wheel 6. Subsequently, when the invention moves again using the traveling wheel 6, the traveling wheel 6 will move smoothly along the sloped ground.

[0040] When the road surface is uneven during the movement of this invention, before moving the invention, first control the hydraulic rod 3 to retract, so that the traveling wheel 6 is off the ground. Then, slide the limiting pin 203 out of the current limiting hole 302 of the connecting ring 301 to release the locking of the connecting ring 301. Then, rotate the hydraulic rod 3 away from the transformer 1, driving the base frame 4, connecting assembly 5 and traveling wheel 6 to rotate, as shown in the figure. Figure 7 As shown in the diagram, the limiting pin 203 is then reinserted into the currently aligned limiting hole 302 to lock the rotation of the connecting ring 301. At this time, the connecting assembly 5 and the traveling wheel 6 are at the same inclination as the hydraulic rod 3. Then, the hydraulic rod 3 is extended to push the base frame 4, connecting assembly 5, and traveling wheel 6 towards the ground. When the traveling wheel 6 contacts the ground, the resistance of the ground will force the traveling wheel 6 to push the rotating block 401 and the connecting assembly 5 to rotate relative to the base frame 4, causing the rotating block 401, connecting assembly 5, and traveling wheel 6 to become... Figure 7 As shown, perpendicular to the ground, the final connecting plate 52 will enter the inclined groove 402 and abut against its inner wall, preventing the rotating block 401 from rotating further. At the same time, part of the weight of the invention is stably transferred to the connecting plate 52 through the base frame 4. At this time, the overall area of ​​the lower side of the invention increases, improving the support stability and ensuring good stability during subsequent movement. After moving to the placement position, the hydraulic rod 3 is retracted, allowing the transformer 1 to be placed on the ground. Then, the hydraulic rod 3, base frame 4, connecting assembly 5, and traveling wheels 6 are rotated back to their original positions. Figure 3 All of the images shown are in a vertical position; please return them to their original position and store them away.

[0041] When the position of the invention needs to be adjusted slightly during placement, the transformer 1 is placed on the ground with the traveling wheel 6 off the ground. The worker uses a wrench to clamp the top of the rotating shaft 51 and rotates the rotating shaft 51, causing the connecting plate 52, connecting shaft 53, and traveling wheel 6 to rotate. The orientation of the traveling wheel 6 is adjusted to the direction of movement required. Then, the pressure plate 7 is rotated downwards to the lowest point of the traveling wheel 6, and the hydraulic rod 3 is extended to make the traveling wheel 6 contact the ground. The transformer 1 is then lifted again. At this time, the pressure plate 7 simultaneously presses the ground near the wheel surface of the traveling wheel 6 into a slope. After the transformer 1 is lifted into place, the pressure plate 7 is flipped upwards to release the obstruction to the traveling wheel 6. Then, the worker pushes the mounting bracket 2, and the invention moves the traveling wheel 6 slightly in the direction of movement required to adjust the position.

[0042] Based on the above steps, we can see that the present invention has the following effects:

[0043] The traveling wheel 6 presses the pressure plate 7 into the soft ground. As the traveling wheel 6 sinks into the soft ground, the pressure plate 7 presses the ground near the wheel surface of the traveling wheel 6 into a slope. When the traveling wheel 6 moves again later, it can move smoothly directly from the slope, avoiding the traveling wheel 6 from collapsing into the soft ground due to high load, which would cause subsequent movement difficulties. At the same time, when the traveling wheel 6 contacts the ground, the pressure plate 7 holds the traveling wheel 6 against the traveling wheel 6 to prevent the traveling wheel 6 from moving the transformer 1 during the process of lifting the transformer 1 off the ground.

[0044] By rotating the hydraulic rod 3, base frame 4, connecting component 5, and traveling wheels 6 into an outward V-shape, the overall area of ​​the lower side of the invention is increased, improving the stability of the support and preventing tilting or tipping when moving on sloping or uneven surfaces. After the invention is placed in position, the hydraulic rod 3, base frame 4, connecting component 5, and traveling wheels 6 are rotated back to a vertical position and reset for storage, reducing the footprint and preventing excessive size from obstructing or hindering workers from connecting electrical wires.

[0045] Example 2: Based on Example 1, such as Figure 3 , Figures 7-10 As shown, it also includes sliders 8 and support columns 9; two sliders 8 are slidably connected to each base frame 4; a support column 9 is slidably connected to each slider 8 in the vertical direction; sliders 8 are used to adjust the position of support columns 9; a C-shaped block 801 is slidably connected to each slider 8 in the horizontal direction; several adjustment holes 901 are opened in the vertical direction on the support column 9; several slots 403 are opened on the base frame 4; the two horizontal sides of the C-shaped block 801 are respectively inserted into the adjustment holes 901 and the slots 403, the horizontal side adapted to the adjustment holes 901 is used to limit the relative position of support column 9 and slider 8, and the horizontal side adapted to the slots 403 is used to limit the relative position of slider 8 and base frame 4.

[0046] The bottom of the support column 9 is shaped like a ball, which prevents the wire from falling off along the axis of the support column 9 when the wire is wound and stored on the support column 9.

[0047] The support column 9 and the slider 8 slide with damping to prevent the support column 9 from falling directly under gravity after the C-block 801 is unlocked.

[0048] The operation steps for using this embodiment are as follows:

[0049] When the ground at the placement point is uneven, shims need to be inserted under the transformer 1 according to its tilt to level it. Then, select the tilted side of the base frame 4 and slide the C-block 801 away from the support column 9. One side of the C-block 801 will retract from the adjustment hole 901, releasing the lock between the slider 8 and the support column 9. Next, the worker slides the support column 9 downwards until its bottom is flush with the bottom of the traveling wheel 6. Then, the C-block 801 is pushed back in and inserted into the corresponding adjustment hole 901 on the support column 9, locking the slider 8 and the support column 9. Finally, the hydraulic rod 3, base frame 4, connecting assembly 5, and traveling wheel 6 on this side are adjusted to... Figure 7 As shown in the diagram, the hydraulic rod 3 is extended, causing the traveling wheel 6 and support column 9 to contact the ground. As the hydraulic rod 3 extends, the reaction force lifts the transformer 1 and mounting frame 2 to the other side. By controlling the extension length of the hydraulic rod 3, the tilted transformer 1 is leveled. At this point, a space appears at the bottom of the tilted side of the transformer 1. Workers insert shims into this space to level the transformer 1, completing the placement of the invention. Then, the hydraulic rod 3 is retracted, canceling the lifting of the transformer 1 and mounting frame 2. The hydraulic rod 3, base frame 4, connecting assembly 5, and traveling wheel 6 are then rotated further, forming... Figure 10 After the rotation of the hydraulic rod 3 is locked, the support column 9 is close to the top of the transformer 1. When the transformer 1 is connected later, the wires reserved for subsequent relocation can be wound around the support column 9 for storage. When the transformer 1 is moved again later, they can be quickly released for adjustment (if there are many wires, the hydraulic rod 3, base frame 4, connecting component 5 and traveling wheel 6 on the other side can also be flipped upwards to wind the wires around the support column 9 on the other side). It should be noted that when one side of the C-shaped block 801 exits from the adjustment hole 901, the other side also exits from the slot 403, releasing the lock between the base frame 4 and the slider 8. The worker can slide the slider 8 along the length of the base frame 4 to adjust the position of the slider 8 and the support column 9, and adjust each support column 9 to a suitable position for winding the wires, which facilitates the winding work.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A highly stable adjustable box-type transformer, comprising a transformer (1) and a mounting frame (2) installed around the transformer (1); the mounting frame (2) is fixedly formed by two crossbeams (201) and two longitudinal beams (202); characterized in that, It also includes hydraulic rods (3), base frame (4), connecting components (5), traveling wheels (6), pressure plates (7) and protective box components; at least two hydraulic rods (3) are connected to each longitudinal beam (202); all hydraulic rods (3) on each longitudinal beam (202) are connected to a base frame (4); the hydraulic rods (3) extend and retract to adjust the distance between the base frame (4) and the longitudinal beam (202); two connecting components (5) are installed on the base frame (4); the connecting components (5) are connected to the traveling wheels (6); the connecting components (5) are used to adjust the direction of the traveling wheels (6); each connecting component (5) is damped and rotatably connected to two pressure plates (7) for limiting the traveling wheels (6); the two pressure plates (7) are located on both sides of the wheel surface of the traveling wheels (6); a protective box component for protecting the transformer (1) is provided on the mounting frame (2).

2. The highly stable adjustable box-type transformer according to claim 1, characterized in that, A single connecting component (5) includes: a rotating shaft (51), a connecting plate (52), and a connecting shaft (53); the rotating shaft (51) is rotatably connected to the base frame (4); the connecting plate (52) is fixedly connected to the rotating shaft (51); the connecting shaft (53) is fixedly connected to the lower side of the connecting plate (52); the connecting shaft (53) is rotatably connected to a walking wheel (6); the pressure plate (7) is rotatably connected to the connecting shaft (53).

3. The highly stable adjustable box-type transformer according to claim 2, characterized in that, It also includes a limiting pin (203), a connecting ring (301), and a rotating block (401); at least two connecting rings (301) are rotatably connected to the longitudinal beam (202); each connecting ring (301) is fixedly connected to the telescopic end of a hydraulic rod (3); a number of limiting holes (302) are provided on the connecting ring (301); at least two limiting pins (203) for locking the connecting ring (301) are slidably connected to the longitudinal beam (202); the limiting pins (203) are adapted to the limiting holes (302); two rotating blocks (401) are rotatably connected to the base frame (4); the rotating shaft (51) passes through the corresponding rotating block (401) and is rotatably connected to it; the base frame (4) is provided with a slanted groove (402) for limiting the rotation angle of the rotating block (401).

4. The highly stable adjustable box-type transformer according to claim 1, characterized in that, The protective enclosure assembly includes: fins (101) and a protective enclosure (204); several fins (101) for heat dissipation are fixedly attached to the outer shell of the transformer (1); the fins (101) are horizontally oriented; the protective enclosure (204) is fixedly attached to the mounting bracket (2), the lower part of the protective enclosure (204) is open, and the upper part of the protective enclosure (204) is provided with a ventilation opening.

5. A highly stable adjustable box-type transformer according to claim 2, characterized in that, It also includes side baffles (701); each pressure plate (7) has a side baffle (701) fixed to each side for blocking soil.

6. The highly stable adjustable box-type transformer according to claim 5, characterized in that, The top of the pivot (51) is fixed with a hexagonal nut that is compatible with a wrench tool.

7. A highly stable adjustable box-type transformer according to any one of claims 4-6, characterized in that, The distance between the mounting bracket (2) and the transformer (1) is at least 20cm. The mounting bracket (2) serves to surround and isolate the transformer (1).

8. A highly stable adjustable box-type transformer according to claim 7, characterized in that, It also includes sliders (8) and support columns (9); at least two sliders (8) are slidably connected on each base frame (4); a support column (9) for increasing the stability of the diagonal support is slidably connected on each slider (8); the sliders (8) are used to adjust the position of the support column (9); a C-shaped block (801) is slidably connected on each slider (8); several adjustment holes (901) are provided on the support column (9); several slots (403) are provided on the base frame (4); the two horizontal sides of the C-shaped block (801) are respectively inserted into the adjustment holes (901) and the slots (403).

9. A highly stable adjustable box-type transformer according to claim 8, characterized in that, The bottom of the support column (9) is shaped like a ball to prevent the wire from falling off along the axial direction of the support column (9).

10. A highly stable adjustable box-type transformer according to claim 8, characterized in that, The support column (9) and the slider (8) are damped and slide to prevent them from falling off directly after unlocking.

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