An oil-immersed transformer installation device with explosion-proof function

Abstract

The present invention relates to an installation device, and in particular to an oil-immersed transformer installation device with explosion-proof function. The present invention provides an oil-immersed transformer installation device with explosion-proof function, which has high safety and can prevent injuries to external personnel. An oil-immersed transformer installation device with explosion-proof function includes a base frame, a movable frame, and an explosion-proof plate. The front and rear sides and the left and right sides of the base frame are rotatably provided with movable frames. The four movable frames will contact each other through rotation. Each movable frame is provided with an explosion-proof plate, which can prevent external personnel from being injured by the explosion of the transformer. By placing the transformer on a support table, the support table is forced to move downward, and the top mechanism is operated to drive the explosion-proof plate to rotate to protect the transformer. When the transformer is unstable and an explosion occurs, it can prevent fragments from splashing and injuring the staff, which is safer.

Description

Technical Field

[0001] The invention relates to a mounting device, in particular to an oil-immersed transformer mounting device with explosion-proof function. Background Art

[0002] The transformer is the most important equipment in the substation. Large transformers usually use oil-immersed transformers. Oil-immersed transformers are a new type of high-performance transformer with a more reasonable structure and better performance. Since the use of transformers is more dangerous, in order to ensure safety, mounting devices are usually used when using transformers. Fixing the transformer on the mounting device can reduce the impact of external factors on the transformer body.

[0003] A power transformer installation device with publication number CN214624671U includes a bottom support plate, the top of which is fixedly connected with a plurality of vertical baffles spaced apart from each other; a mounting gap for installing the transformer is formed between adjacent vertical baffles; the power transformer installation device also includes a U-shaped baffle bar; the U-shaped baffle bar has a horizontal baffle portion spaced apart from each other, the horizontal baffle portion passes through a plurality of vertical baffles; the power transformer installation device also includes an extruded top cover plate, the bottom of the extruded top cover plate has a plurality of Z-shaped plates corresponding to the vertical baffles; the top of the vertical baffle is fixedly connected with a plurality of through columns, the through columns pass through the Z-shaped plates upwards. The above-mentioned device component design is adopted to not only realize the full installation and assembly of multiple transformers, but also the above-mentioned device component design can realize stable assembly, thereby saving transformer installation controls and facilitating maintenance. Although the above patent can achieve the effect of fully installing and assembling multiple transformers, the patent directly installs the transformer in the installation gap formed between the baffles, which cannot effectively protect the transformer. When an overload or short circuit occurs inside the transformer, the transformer may explode. When the explosion occurs, the transformer fragments will splatter and endanger external personnel, which poses a safety hazard. At the same time, the sparks will affect the surrounding equipment and cause secondary explosions and fires.

[0004] In view of the above problems, further improvements are now made to the installation device in this regard. It is necessary to design an oil-immersed transformer installation device with high safety and explosion-proof function that can avoid injury to external personnel. Summary of the invention

[0005] In order to overcome the shortcomings of the existing installation device that has no protection and will endanger external personnel when the transformer explodes, the technical problem is to provide an oil-immersed transformer installation device with explosion-proof function which has high safety and can avoid injury to external personnel.

[0006] The technical solution is as follows: an oil-immersed transformer installation device with explosion-proof function, including a base frame, a movable frame, an explosion-proof plate, a connecting plate, a buffer mechanism and a top mechanism. The base frame is rotatably provided with movable frames on the front and rear sides and the left and right sides. The four movable frames can contact each other by rotating. Each movable frame is provided with an explosion-proof plate, which can prevent external personnel from being injured by the explosion of the transformer. The outer sides of the two explosion-proof plates on the left and right sides are connected with connecting plates, the two connecting plates are concave in shape, and the two connecting plates can contact each other by rotating. The base frame is provided with a buffer mechanism, and a top mechanism is connected between the base frame and the movable frame.

[0007] Optionally, the buffer mechanism includes a base, a support block, a return spring, a support platform, a limit rod and a stopper. A base is provided at the lower part of the base frame, and four support blocks are evenly provided on the top of the base. The support blocks are located inside the base frame, and a limit rod is slidably provided on the top of each support block. Each limit rod runs through the base frame, and a support platform is connected between the tops of the four limit rods. A stopper is provided on the left side of the top of the support platform. Four return springs are evenly connected between the bottom of the support platform and the top of the base frame, and each return spring is sleeved on the limit rod on the same side.

[0008] Optionally, the top mechanism includes a top frame, a connecting block and a torsion spring. Top frames are provided on the front and rear sides and the left and right sides of the support platform. The top frames can make the explosion-proof plate automatically rotate and open. Two connecting blocks are connected to the sides of the four movable frames close to each other. The four top frames are in contact and cooperate with the two connecting blocks on the same side. Two torsion springs are connected between the four movable frames and the bottom frame.

[0009] Optionally, a fixing mechanism is also included, which includes a fixed block, a reset spring, a sliding frame and a pushing block. Fixed blocks are connected to the front and rear sides of the support platform, and the two fixed blocks pass through the top frame on the same side. Sliding frames are slidably provided on the two fixed blocks, and pushing blocks are connected to the outsides of the two sliding frames. The two explosion-proof plates on the front and rear sides can contact the pushing blocks on the same side through rotation, and reset springs are connected between the left and right sides of the two pushing blocks and the fixed blocks on the same side, and the corresponding two reset springs are both mounted on the sliding frame on the same side.

[0010] Optionally, a pushing mechanism is also included, which includes a motor, a screw, a sliding block and a lifting block. A motor is provided on the left side of the base frame, a screw is connected to the motor output shaft, the right side of the screw is connected to the sliding block by a threaded connection, and a lifting block is connected to the bottom of the support platform. The lifting block is in contact with the sliding block, and the sliding block and the lifting block both slide with the base frame.

[0011] Optionally, a guiding mechanism is also included, which includes a connecting frame, a top rod and a first spring. A connecting frame is slidably provided in the middle of the base frame, a top rod is connected to the right side of the connecting frame, two first springs are connected between the left side of the connecting frame and the base frame, and the connecting frame slides with the support platform. The lifting block moves downward to push the connecting frame to move to the left.

[0012] Optionally, a shock absorbing mechanism capable of buffering the connecting plates is also included, the shock absorbing mechanism including a support frame, a second spring and a contact block, the two connecting plates are connected to a support frame on one side close to each other, contact blocks are slidably provided on the top of the two support frames, and four second springs are evenly connected between the two contact blocks and the support frames on the same side.

[0013] Optionally, bolts are symmetrically threadedly connected to the left and right sides of the base.

[0014] The present invention provides an oil-immersed transformer installation device with explosion-proof function, which has the following advantages: 1. By placing the transformer on a support platform, the support platform is forced to move downward, so that the top mechanism works to drive the explosion-proof plate to rotate to protect the transformer, which can prevent fragments from splashing and injuring workers when the transformer is unstable and explodes, which is safer;

[0015] 2. Under the action of the torsion spring, when the transformer gradually leaves the support platform, it can automatically reverse and open with the movable frame and explosion-proof plate, reducing the trouble of manual operation;

[0016] 3. When the explosion-proof plate is rotated and closed, the push block will be pushed to make the sliding frame move inward to limit the front and rear sides of the transformer to prevent the transformer from shaking and shifting forward and backward during operation;

[0017] 4. The motor can control the closing and opening of the explosion-proof plate. There is no need to manually use a crane to lift the transformer. The transformer can be propped up by the motor to open the explosion-proof plate, which makes it more convenient to maintain and repair the transformer without having to remove the transformer directly.

[0018] 5. When the motor is running, the top frame will automatically move to the left to limit the right wall of the transformer, further improving the stability of the transformer operation and preventing the internal parts from loosening due to severe shaking of the transformer;

[0019] 6. When the explosion-proof plate drives the contact block to rotate, the force of the second spring compression through the contact block and the transformer can prevent the two connecting plates from colliding and being damaged, and can play a role in buffering and shock absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a partial cross-sectional view of the present invention.

[0022] Figure 3 It is a partial three-dimensional structural schematic diagram of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the buffer mechanism of the present invention.

[0024] Figure 5 It is a partial cross-sectional view of the buffer mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the jacking mechanism of the present invention.

[0026] Figure 7 It is a partial three-dimensional structural schematic diagram of the jacking mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing mechanism of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixing mechanism part of the present invention.

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the pushing mechanism of the present invention.

[0030] Fig.11 It is a schematic diagram of the first partial three-dimensional structure of the pushing mechanism of the present invention.

[0031] Fig.12 It is a schematic diagram of a second partial three-dimensional structure of the pushing mechanism of the present invention.

[0032] Fig.13 It is a schematic diagram of the three-dimensional structure of the guide mechanism of the present invention.

[0033] Fig.14 It is a schematic diagram of the three-dimensional structure of the guide mechanism part of the present invention.

[0034] Fig.15 It is a schematic diagram of the three-dimensional structure of the shock absorbing mechanism of the present invention.

[0035] Explanation of the accompanying drawings: 1_base, 2_movable frame, 3_explosion-proof plate, 4_connecting plate, 5_buffer mechanism, 51_base, 52_support block, 53_limit rod, 54_support table, 55_return spring, 56_stop block, 6_top mechanism, 61_top frame, 62_connecting block, 63_torsion spring, 7_fixing mechanism, 71_fixing block, 72_sliding frame, 73_reset spring, 74_pushing block, 8_pushing mechanism, 81_motor, 82_screw, 83_sliding block, 84_lifting block, 9_guide mechanism, 91_connecting frame, 92_top rod, 93_first spring, 10_shock absorbing mechanism, 101_support frame, 102_second spring, 103_contact block. DETAILED DESCRIPTION

[0036] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0037] Example 1

[0038] An oil-immersed transformer installation device with explosion-proof function, Figure 1-3 As shown in the figure, it includes a base frame 1, a movable frame 2, an explosion-proof plate 3, a connecting plate 4, a buffer mechanism 5 and a top mechanism 6. The base frame 1 is rotatably provided with movable frames 2 on both sides, front and rear, and left and right sides. The four movable frames 2 can contact each other by rotating. Each movable frame 2 is provided with an explosion-proof plate 3 that can prevent the explosion fragments of the transformer from splashing. The outer sides of the two explosion-proof plates 3 on the left and right sides are connected with connecting plates 4. The two connecting plates 4 are concave in shape. The two connecting plates 4 can contact each other by rotating. The base frame 1 is provided with a buffer mechanism 5 that can buffer the transformer. A top mechanism 6 that can automatically rotate and close the explosion-proof plate 3 is connected between the base frame 1 and the movable frame 2.

[0039] exist Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown in the figure, the buffer mechanism 5 includes a base 51, a support block 52, a return spring 55, a support platform 54, a limit rod 53 and a stopper 56. The lower part of the base frame 1 is connected to the base 51 by bolt connection. The left and right sides of the base 51 are symmetrically threaded with bolts. Under the action of the bolts, people can fix the base 51 to the ground, thereby preventing the device from moving at will. Four support blocks 52 are evenly welded on the top of the base 51. The support blocks 52 are located inside the base frame 1. A limit rod 53 is slidably provided on the top of each support block 52. Each limit rod 53 runs through the base frame 1. A support platform 54 for supporting the transformer is connected between the tops of the four limit rods 53. A stopper 56 is provided on the left side of the top of the support platform 54. Four return springs 55 are evenly connected between the bottom of the support platform 54 and the top of the base frame 1. Each return spring 55 is sleeved on the limit rod 53 on the same side.

[0040] exist Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown in the figure, the top mechanism 6 includes a top frame 61, a connecting block 62 and a torsion spring 63. The front and rear sides and the left and right sides of the support platform 54 are provided with top frames 61 that can automatically rotate the explosion-proof plate 3. Two connecting blocks 62 are connected to the sides of the four movable frames 2 that are close to each other. The four top frames 61 are in contact with the two connecting blocks 62 on the same side. Two torsion springs 63 are connected between the four movable frames 2 and the bottom frame 1.

[0041] When people need to install the transformer in the device for use, they can first use a crane to move the transformer. They can fix the chain on the transformer and use the crane to transport the transformer to the support platform 54, so that the transformer contacts the stopper 56, and then the transformer is limited. When the transformer contacts the support platform 54, the support platform 54 will move downward under the action of gravity, thereby driving the limit rod 53 to move downward, and the return spring 55 will be compressed accordingly. The downward movement of the support platform 54 will also drive the top frame 61 to move downward, so that the top frame 61 pushes the connecting block 62 and the movable frame 2 to rotate, and the torsion spring 63 will be deformed accordingly. The rotation of the movable frame 2 drives the explosion-proof plate 3 to rotate, and the explosion-proof plates 3 on the left and right sides will also drive the connecting block 62 and the movable frame 2 to rotate. The plate 4 rotates, so that the four explosion-proof plates 3 are combined into a square box after rotating ninety degrees, thereby protecting the four sides of the transformer. At the same time, the two connecting plates 4 will also contact each other. Because the two connecting plates 4 are concave, there will be a notch in the middle after the two connecting plates 4 contact each other. People can remove the chain connecting the transformer and the crane through the notch, and at the same time, the cable to be connected to the transformer can be connected to the transformer port, and the oil can be injected through the oil filling pipe on the transformer. After the work is completed, the transformer can be used. The transformer can perform voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc., and has a wide range of applications. When the transformer is running, if an overload or short circuit occurs inside the power transformer, the insulating material or insulating oil will be High temperature or electric sparks will decompose, expand and even gasify, causing the internal pressure of the transformer to increase sharply, which may cause the transformer casing to explode. In this way, the four explosion-proof panels 3 can avoid endangering external personnel when the transformer explodes. The explosion-proof panels 3 can prevent the explosion fragments of the transformer from flying around, which is safer. When the transformer needs to be removed for maintenance and inspection after a period of use, people need to turn off the transformer first, and the chain can be fixed on the transformer through the notch, and then the transformer can be lifted by a crane. Because there is a certain gap between the transformer and the connecting plate 4, when the transformer gradually leaves the support platform 54, the support platform 54 is no longer subjected to force and will drive the limit rod 53 to move upward and reset under the reset action of the return spring 55, and the support platform 54 moves upward At the same time, the top frame 61 is driven to move upward, so that the top frame 61 no longer presses the connecting block 62, and the movable frame 2 will drive the explosion-proof plate 3 and the connecting plate 4 to reverse and reset under the resetting action of the torsion spring 63, so that the four movable frames 2 are no longer in contact with each other, and the two connecting plates 4 are no longer in contact with each other. In this way, when the transformer is taken out, the four explosion-proof plates 3 are automatically opened. After the transformer is overhauled, the above operation is repeated to place the transformer on the support table 54. The four explosion-proof plates 3 will be automatically rotated and closed by the top mechanism 6, thereby protecting the transformer. In this way, under the action of the top mechanism 6, the trouble of manual operation can be reduced, and the explosion-proof plate 3 can be automatically rotated. At the same time, through the torsion spring 63, the explosion-proof plate 3 can also be automatically reversed and opened.

[0042] Example 2

[0043] On the basis of Example 1, Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown in the figure, a fixing mechanism 7 is also included, and the fixing mechanism 7 includes a fixing block 71, a reset spring 73, a sliding frame 72 and a pushing block 74. The front and rear sides of the support platform 54 are connected with the fixing blocks 71, and the two fixing blocks 71 both penetrate the top frame 61 on the same side. The two fixing blocks 71 are slidably provided with a sliding frame 72 capable of limiting the position of the transformer, and the outer sides of the two sliding frames 72 are connected with a pushing block 74. The two explosion-proof panels 3 on the front and rear sides can contact the pushing block 74 on the same side by rotation. Reset springs 73 are connected between the left and right sides of the two pushing blocks 74 and the fixed blocks 71 on the same side, and the corresponding two reset springs 73 are both sleeved on the sliding frame 72 on the same side.

[0044] After people place the transformer on the support platform 54, the support platform 54 is forced to move downward, and the four movable frames 2 will rotate through the top mechanism 6, thereby driving the explosion-proof plate 3 to rotate. The support platform 54 moves downward and the fixing mechanism 7 as a whole will also be moved downward. The explosion-proof plates 3 on the front and rear sides rotate and contact with the pushing blocks 74, thereby pushing the pushing blocks 74 to move inward, and the reset spring 73 is compressed accordingly. The pushing block 74 pushes the sliding frame 72 to move inward and clamp the transformer. In this way, the sliding frame 72 can limit the transformer, which can prevent the transformer from shaking and deviating forward and backward during operation, which is more stable and safe. When people remove the transformer, the transformer is detached from the support The support platform 54 is gradually no longer subjected to force, so that the jacking mechanism 6 is gradually reset. The support platform 54 also drives the fixing mechanism 7 to move up and reset as a whole. The reset of the jacking mechanism 6 causes the movable frame 2 to drive the explosion-proof plate 3 to reverse and reset. The explosion-proof plates 3 on the front and rear sides are gradually no longer in contact with the pushing blocks 74. The pushing blocks 74 will drive the sliding frame 72 to move outward and reset under the reset action of the reset spring 73, so that the sliding frame 72 no longer clamps the transformer, and the transformer can be smoothly separated from the device. In this way, after the transformer is placed on the support platform 54, the explosion-proof plates 3 on the front and rear sides will automatically cause the sliding frame 72 to clamp the transformer for limiting, thereby achieving an automated effect without manual operation.

[0045] exist Figure 2 , Fig.10 , Fig.11 and Fig.12As shown in the figure, it also includes a pushing mechanism 8, which includes a motor 81, a screw 82, a sliding block 83 and a lifting block 84. A motor 81 capable of controlling the opening and closing of the explosion-proof plate 3 is installed on the left side of the base frame 1. A screw 82 is connected to the output shaft of the motor 81. The right side of the screw 82 is connected to the sliding block 83 by a threaded connection. A lifting block 84 is connected to the bottom of the support platform 54. The lifting block 84 is in contact with the sliding block 83, and the sliding block 83 and the lifting block 84 are both slidably matched with the base frame 1.

[0046] exist Figure 1 , Figure 2 , Fig.13 and Fig.14 As shown in the figure, it also includes a guiding mechanism 9, which includes a connecting frame 91, a top rod 92 and a first spring 93. A connecting frame 91 is slidably provided in the middle of the base frame 1. A top rod 92 capable of limiting the right wall of the transformer is connected to the right side of the connecting frame 91. Two first springs 93 are connected between the left side of the connecting frame 91 and the base frame 1. The connecting frame 91 is slidably matched with the support platform 54. The lifting block 84 moves downward to push the connecting frame 91 to move to the left.

[0047] After people place the transformer on the support platform 54, the support platform 54 cannot be moved down directly because the lifting block 84 blocks the support platform 54. After the transformer is placed, people can start the motor 81 to make the motor 81 run forward. The rotation of the output shaft of the motor 81 drives the screw 82 to rotate, so that the screw 82 drives the sliding block 83 to move to the left along the bottom frame 1, and the sliding block 83 gradually no longer blocks the lifting block 84. The support platform 54 will drive the lifting block 84 and the transformer to move downward, and the lifting block 84 will push the connecting frame 91 to move to the left, and the first spring 93 will be compressed accordingly. The connecting frame 91 will simultaneously drive the push rod 92 to move to the left, so that the push rod 92 contacts the transformer, and people can turn off the motor 81. In this way, under the action of the push rod 92 and the stopper 56, the left and right sides of the transformer can be limited to avoid the transformer vibrating and deviating to the left and right to cause oil leakage or loose parts, and the sliding frame 72 can limit the front and back sides of the transformer, so that all four sides of the transformer will be limited, further improving the safety. When repairing, people can directly start the motor 81 to run in the reverse direction, so that the output shaft of the motor 81 reverses and drives the screw 82 to reverse, thereby driving the sliding block 83 to move and reset to the right side, so that the sliding block 83 pushes the lifting block 84 to move upward, and the lifting block 84 drives the support platform 54 to move upward, so that the support platform 54 supports the transformer to move upward, and the top mechanism 6 is gradually reset, so that the explosion-proof plate 3 is reversed and opened and reset, and the lifting block 84 moves upward and resets and will no longer block the connecting frame 91. The connecting frame 91 will drive the top rod 92 to move and reset to the right side under the reset action of the first spring 93, so that the top rod 92 no longer limits the right wall of the transformer. After the explosion-proof plate 3 is opened, people can turn off the motor 81. In this way, the explosion-proof plate 3 is opened by the motor 81, and the transformer can be lifted by a crane without manual work. People can directly repair the transformer after the explosion-proof plate 3 is opened, without directly removing the transformer from the support platform 54. After the transformer is repaired, the above operation can be repeated to control the motor 81 to run forward, so that the explosion-proof plate 3 is rotated and closed.

[0048] exist Figure 1 , Figure 2 and Fig.15 As shown in the figure, a shock absorbing mechanism 10 is also included, and the shock absorbing mechanism 10 includes a support frame 101, a second spring 102 and a contact block 103. The two connecting plates 4 are connected to the support frame 101 on one side close to each other, and the tops of the two supporting frames 101 are slidably provided with contact blocks 103 that can play a shock absorbing role on the connecting plates 4. Four second springs 102 are evenly connected between the two contact blocks 103 and the supporting frames 101 on the same side.

[0049] When people operate to make the movable frame 2 drive the explosion-proof plate 3 to rotate, the rotation of the explosion-proof plates 3 on the left and right sides will also drive the connecting plate 4 and the shock absorbing mechanism 10 to rotate as a whole, and the contact block 103 will contact the left and right walls of the transformer as the connecting plate 4 rotates. The connecting plate 4 continues to rotate, and the contact block 103 is blocked by the transformer and cannot move, so that the support frame 101 squeezes the second spring 102. In this way, the force compressed by the second spring 102 can play a shock-absorbing and buffering role on the connecting plate 4, avoiding the movable frame 2 from rotating too fast and causing the two fast connecting plates 4 to directly rotate and collide, which can reduce noise and avoid the connection plate 4 from colliding and being damaged. When people need to repair the transformer, the movable frame 2 is operated to drive the explosion-proof plate 3 and the connecting plate 4 to reverse and reset, and the connecting plate 4 drives the support frame 101 to rotate and reset in the opposite direction, so that the second spring 102 is gradually reset. After the second spring 102 is reset, the support frame 101 drives the contact block 103 to rotate and reset in the opposite direction through the second spring 102, so that the contact block 103 is no longer in contact with the transformer.

[0050] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An oil-immersed transformer installation device with explosion-proof function, comprising a base frame (1), a movable frame (2), an explosion-proof plate (3) and a connecting plate (4), wherein the base frame (1) is rotatably provided with movable frames (2) on both the front and rear sides and the left and right sides, and the four movable frames (2) can contact each other by rotating, and each movable frame (2) is provided with an explosion-proof plate (3), and the explosion-proof plate (3) can prevent external personnel from being injured by the explosion of the transformer, and the outer sides of the two explosion-proof plates (3) on the left and right sides are connected to the connecting plates (4), and the two connecting plates (4) are concave in shape, and the two connecting plates (4) can contact each other by rotating, It is characterized in that It also includes a buffer mechanism (5) and a top mechanism (6), wherein the buffer mechanism (5) is provided on the bottom frame (1), and the top mechanism (6) is connected between the bottom frame (1) and the movable frame (2); The buffer mechanism (5) comprises a base (51), a support block (52), a return spring (55), a support platform (54), a limit rod (53) and a stopper (56). The base (51) is provided at the lower part of the base frame (1). Four support blocks (52) are evenly provided on the top of the base (51). The support blocks (52) are located inside the base frame (1). A limit rod (53) is slidably provided on the top of each support block (52). Each limit rod (53) penetrates the base frame (1). A support platform (54) is connected between the tops of the four limit rods (53). A stopper (56) is provided on the left side of the top of the support platform (54). Four return springs (55) are evenly connected between the bottom of the support platform (54) and the top of the base frame (1). Each return spring (55) is sleeved on the limit rod (53) on the same side. The top-positioning mechanism (6) comprises a top frame (61), a connecting block (62) and a torsion spring (63). Top frames (61) are provided on both the front and rear sides and the left and right sides of the support platform (54). The top frames (61) can automatically rotate and open the explosion-proof plate (3). Two connecting blocks (62) are connected to the sides of the four movable frames (2) that are close to each other. The four top frames (61) are in contact with the two connecting blocks (62) on the same side. Two torsion springs (63) are connected between the four movable frames (2) and the bottom frame (1). The fixing mechanism (7) further comprises a fixing block (71), a return spring (73), a sliding frame (72) and a pushing block (74), the front and rear sides of the support platform (54) are both connected with the fixing blocks (71), the two fixing blocks (71) both penetrate the top frame (61) on the same side, the two fixing blocks (71) are both slidably provided with sliding frames (72), the outer sides of the two sliding frames (72) are both connected with pushing blocks (74), the two explosion-proof plates (3) on the front and rear sides can contact with the pushing blocks (74) on the same side by rotating, the left and right sides of the two pushing blocks (74) are both connected with return springs (73) and the fixing blocks (71) on the same side, and the two corresponding return springs (73) are both sleeved on the sliding frames (72) on the same side; The invention also comprises a driving mechanism (8), the driving mechanism (8) comprising a motor (81), a screw rod (82), a sliding block (83) and a lifting block (84); a motor (81) is arranged on the left side of the base frame (1); a screw rod (82) is connected to the output shaft of the motor (81); a sliding block (83) is connected to the right side of the screw rod (82) by means of a threaded connection; a lifting block (84) is connected to the bottom of the support platform (54); the lifting block (84) is in contact with the sliding block (83); and the sliding block (83) and the lifting block (84) are both in sliding cooperation with the base frame (1).

2. The oil-immersed transformer installation device with explosion-proof function according to claim 1, It is characterized in that The invention also comprises a guide mechanism (9), the guide mechanism (9) comprising a connecting frame (91), a push rod (92) and a first spring (93); a connecting frame (91) is slidably provided in the middle of the base frame (1); the push rod (92) is connected to the right side of the connecting frame (91); two first springs (93) are connected between the left side of the connecting frame (91) and the base frame (1); the connecting frame (91) is slidably matched with the support platform (54); the lifting block (84) moves downward to push the connecting frame (91) to move leftward.

3. The oil-immersed transformer installation device with explosion-proof function according to claim 2, It is characterized in that It also includes a shock absorbing mechanism (10) capable of providing a buffer to the connecting plate (4), the shock absorbing mechanism (10) including a support frame (101), a second spring (102) and a contact block (103), the two connecting plates (4) being connected to each other on one side thereof, the support frame (101) being connected to the other side, the contact block (103) being slidably disposed on the top of the two supporting frames (101), and four second springs (102) being evenly connected between the two contact blocks (103) and the supporting frame (101) on the same side.

4. The oil-immersed transformer installation device with explosion-proof function according to claim 3, It is characterized in that The left and right sides of the base (51) are both symmetrically threaded with bolts.

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