Gas Evaporation Cooling Subsurface Box-Type Transformer

Abstract

The present invention relates to a transformer, and particularly to a gas-evaporation-cooled buried box transformer. The present invention provides a gas-evaporation-cooled buried box transformer that automatically alarms when there is underground water seepage. The gas-evaporation-cooled buried box transformer includes a bottom plate, a transformer body, bushings, etc. The transformer body is installed on the top of the bottom plate, and bushings are symmetrically installed on the left and right of the top of the transformer body. The two bushings are respectively sleeved on the outgoing line and the input line of the transformer body. By connecting the conveying pipe on the right to the condensing device, cold air can be injected into the transformer body, thereby absorbing the heat inside the transformer body and achieving the purpose of cooling, and further avoiding damage to the transformer body due to high temperature inside. Such a cooling method is more effective and direct.

Description

Technical Field

[0001] The present invention relates to a transformer, and more particularly to a gas-evaporation-cooled buried box transformer. Background Art

[0002] A transformer, i.e., an electrical transformer, refers to a device that changes the voltage of a certain current into another voltage. Transformers are often used in power plants, substations and other power-related places. During operation, transformers generate high temperatures. Generally, a gas-evaporation method is used for cooling to ensure the normal operation of the transformer. Gas-evaporation cooling means a method that utilizes water evaporation and forced air circulation to carry away the condensation heat, and uses a coolant to condense the evaporated gas into a liquid, ultimately achieving the cooling purpose.

[0003] Currently, a new type of transformer with the publication number CN106710805A and the application number CN201510777794.7 has been published. This transformer includes a transformer housing, a transformer main body and a heat dissipation part. The transformer main body and the heat dissipation part are both installed on the transformer housing. The heat dissipation part includes a heat absorption part, a heat conduction pipe and heat dissipation fins. The heat absorption part is close to the transformer main body. The heat dissipation fins are connected to the heat absorption part through the heat conduction pipe. The heat absorption part includes a heat absorption pipe and a heat absorption plate. The heat absorption pipe is installed on the heat absorption plate. The heat dissipation fins are located outside the transformer housing. This new type of transformer has a simple structure. By separating the heat absorption part and the heat dissipation part, the heat generated by the transformer main body during operation can be better dissipated, effectively improving the safety of the transformer operation and increasing the service life of the transformer. Although the above patent effectively improves the safety of the transformer operation and increases the service life of the transformer, in order to reduce the occupation of urban area, transformers generally adopt a buried method. Transformers underground are easily soaked when underground water seeps, and it is difficult for staff to know the underground situation, thus affecting the normal use of the transformer.

[0004] In view of the above reasons, it is necessary to design a gas-evaporation-cooled buried box transformer that can automatically alarm when underground water seeps. Summary of the Invention

[0005] In order to overcome the disadvantages that existing transformers are easily soaked when underground water seeps, it is difficult for staff to know, and they cannot be processed in time, the technical problem of the present invention is: to provide a gas-evaporation-cooled buried box transformer that can automatically alarm when underground water seeps.

[0006] The technical implementation solution of the present invention is as follows: a gas evaporation-cooled buried box transformer, which includes a bottom plate, a transformer body, bushings, a cooling mechanism, an alarm mechanism and a lifting mechanism. The transformer body is installed on the top of the bottom plate. Bushings are symmetrically installed on the left and right of the top of the transformer body. The two bushings are respectively sleeved on the outgoing line and the input line of the transformer body. A cooling mechanism is provided at the rear of the transformer body, and the cooling mechanism can cool the inside of the transformer body. An alarm mechanism is provided on the bottom plate, and a lifting mechanism is provided on the alarm mechanism.

[0007] More preferably, the cooling mechanism includes a support frame, a double-shaft motor, fan blades, a delivery pipe, an output pipe, a water tank, a collection box, a connecting pipe, a water pump and spray nozzles. The support frame is welded to the rear wall of the transformer body. A double-shaft motor is installed in the middle of the support frame. Fan blades are connected to both output shafts of the double-shaft motor. The right fan blade is in a shape of curling inward, and the left fan blade is in a shape of curling outward. The right part of the rear side of the support frame is connected to the delivery pipe, and the left part of the rear side of the support frame is connected to the output pipe. The left part of the rear side of the transformer body is fixedly connected to a water tank, and the water tank can wrap the output pipe. The lower part of the rear side of the water tank is fixedly connected to a collection box, and the collection box communicates with the output pipe. The left side of the bottom of the water tank is fixedly connected to a connecting pipe, and the upper part of the left side of the water tank is fixedly connected to a water pump. The water outlet pipe of the water pump extends into the interior of the water tank, and the water inlet pipe of the water pump is connected to the connecting pipe. Four spray nozzles are spacedly connected to the water outlet pipe of the water pump, and all four spray nozzles are located above the output pipe.

[0008] More preferably, the alarm mechanism includes a support frame, a liquid level sensor and an alarm. The support frame is slidably provided at the bottom of the bottom plate. The liquid level sensor is installed at the rear of the support frame, and the liquid level sensor passes through the bottom plate. An alarm capable of giving an alarm is provided at the front side of the top of the transformer body, and the alarm is electrically connected to the liquid level sensor.

[0009] More preferably, the lifting mechanism includes a driving motor, a threaded shaft and a guide rod. The driving motor is provided on the right side of the support frame. The output shaft of the driving motor is connected to a threaded shaft that can drive the transformer body to move upward. The threaded shaft is threadedly connected to the right side of the bottom plate. The left side of the support frame is connected to a guide rod, and the guide rod is slidably connected to the bottom plate. The liquid level sensor is electrically connected to the driving motor.

[0010] More preferably, it further includes a collection mechanism capable of collecting rainwater in the cellar. The collection mechanism includes support rods, loading boxes, water pipes, piston rods, return springs, one-way valves and liquid extraction pumps. Support rods are provided on both the left and right side walls of the support frame. Loading boxes are provided at the tops of the support rods. Water pipes are provided on both the front and rear sides of the loading boxes. One-way valves are installed in the middle of the water pipes. Piston rods are slidably provided on the upper side of the water pipes. Return springs are connected between the piston rods and the interior of the adjacent water pipes. Liquid extraction pumps for draining water are provided on the outer sides of the loading boxes.

[0011] More preferably, it also includes a toggle mechanism that can pump rainwater in the cellar, the toggle mechanism includes a connecting rod, a toggle rod and a connecting shaft, connecting rods are provided on the front and rear sides of the charging box, toggle rods are rotatably connected to the connecting rods, connecting shafts are provided on the outside of the piston rods, the connecting shafts are slidably connected to the adjacent toggle rods, and the bottom plate can move upward to contact the toggle rod.

[0012] More preferably, it also includes a buffer mechanism capable of reducing shock to the transformer body, the buffer mechanism includes a buffer seat and a buffer spring, buffer seats are symmetrically slidably provided on both sides of the bottom of the support frame, damping material is coated at the connection between the buffer seat and the support frame, and buffer springs are connected between the buffer seat and the support frame.

[0013] More preferably, the top surface of the charging box is a transparent plate.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. By connecting the right delivery pipe to the condensing equipment, cold air can be injected into the transformer body, thereby absorbing the heat inside the transformer body and cooling it, thereby avoiding high temperature damage inside the transformer body. This cooling method is more effective and direct;

[0016] 2. When water seeps inside the cellar, if the water level exceeds the liquid level sensor, the liquid level sensor can control the alarm to send an alarm to the staff's mobile phone, so that the staff can come to the cellar in time to deal with the situation and avoid water seepage damage to the transformer body;

[0017] 3. When the water level in the cellar exceeds the liquid level sensor, the liquid level sensor will simultaneously control the drive motor to operate, thereby moving the transformer body upwards away from the rain, preventing the transformer body from being soaked by rainwater and leaking, and also buying time for the staff;

[0018] 4. After the transformer body moves up, the rainwater can be pumped into the water pipe through the cooperation of the toggle mechanism and the collection mechanism. After the transformer body moves down and resets, the rainwater in the water pipe can be squeezed into the charging box, which plays a role in drainage and improves safety.

[0019] 5. Under the action of the buffer spring, when vibration occurs in the cellar, part of the shaking force can be eliminated to prevent the transformer body from being unstable and tipping over. 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 schematic diagram of the first three-dimensional structure of the cooling mechanism of the present invention.

[0022] Figure 3 It is a schematic diagram of the second three-dimensional structure of the cooling mechanism of the present invention.

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

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

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

[0026] Figure 7 It is a schematic diagram of the second three-dimensional structure of the alarm mechanism of the present invention.

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

[0028] Figure 9 It is a schematic diagram of a second three-dimensional structure of the lifting mechanism of the present invention.

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

[0030] Figure 11 It is a partial cross-sectional view of the collecting mechanism of the present invention.

[0031] Figure 12 It is a schematic diagram of the three-dimensional structure of the toggle mechanism of the present invention.

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

[0033] The meanings of the reference numerals in the figure are as follows: 1. base plate, 2. transformer body, 3. bushing, 4. cooling mechanism, 40. support frame, 41. dual-axis motor, 42. fan blades, 44. delivery pipe, 45. output pipe, 46. water tank, 47. collecting box, 48. connecting pipe, 49. water pump, 410. nozzle, 5. alarm mechanism, 50. support frame, 51. liquid level sensor, 52. alarm, 6. lifting mechanism, 60. driving motor, 61. threaded shaft, 62. guide rod, 7. collecting mechanism, 70. support rod, 71. charging box, 72. water pipe, 73. piston rod, 74. reset spring, 75. one-way valve, 76. liquid pump, 8. toggle mechanism, 80. connecting rod, 81. toggle rod, 82. connecting shaft, 9. buffer mechanism, 90. buffer seat, 91. buffer spring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] The gas evaporation-cooled buried box transformer, as shown in Figure 1-2 , includes a bottom plate 1, a transformer body 2, bushings 3, a cooling mechanism 4, an alarm mechanism 5, and a lifting mechanism 6. The transformer body 2 is installed on the top of the bottom plate 1. The bushings 3 are symmetrically installed on the left and right of the top of the transformer body 2. The two bushings 3 are respectively sleeved on the lead-out wire and the input wire of the transformer body 2. A cooling mechanism 4 capable of cooling is provided at the rear of the transformer body 2. An alarm mechanism 5 capable of warning the staff is provided on the bottom plate 1. A lifting mechanism 6 capable of lifting the transformer body 2 is provided on the alarm mechanism 5.

[0037] As shown in Figure 1-5 , the cooling mechanism 4 includes a support frame 40, a double-shaft motor 41, fan blades 42, a delivery pipe 44, an output pipe 45, a water tank 46, a collection box 47, a connecting pipe 48, a water pump 49, and spray nozzles 410. The support frame 40 is welded to the rear wall of the transformer body 2. The double-shaft motor 41 is installed in the middle of the support frame 40. Fan blades 42 are connected to both output shafts of the double-shaft motor 41. The right fan blade 42 is in a shape of curling inwards, and the left fan blade 42 is in a shape of curling outwards. The right rear part of the support frame 40 is connected to the delivery pipe 44, and the left rear part of the support frame 40 is connected to the output pipe 45. The left rear part of the transformer body 2 is fixedly connected to the water tank 46. The water tank 46 can wrap the output pipe 45. The lower part of the rear side of the water tank 46 is fixedly connected to the collection box 47. The collection box 47 communicates with the output pipe 45. The left side of the bottom of the water tank 46 is fixedly connected to the connecting pipe 48. The upper part of the left side surface of the water tank 46 is fixedly connected to the water pump 49. The water outlet pipe of the water pump 49 extends into the interior of the water tank 46. The water inlet pipe of the water pump 49 is connected to the connecting pipe 48. Four spray nozzles 410 are spacedly connected to the water outlet pipe of the water pump 49. All four spray nozzles 410 are located above the output pipe 45.

[0038] As shown in Figure 1 , Figure 6 and Figure 7 , the alarm mechanism 5 includes a support frame 50, a liquid level sensor 51, and an alarm 52. The support frame 50 is slidably provided at the bottom of the bottom plate 1. A liquid level sensor 51 capable of sensing the water level in the cellar is installed at the rear of the support frame 50. The liquid level sensor 51 passes through the bottom plate 1. An alarm 52 capable of warning people is provided at the front side of the top of the transformer body 2. The alarm 52 is electrically connected to the liquid level sensor 51.

[0039] As shown in Figure 1 , Figure 8 and Figure 9 , the lifting mechanism 6 includes a driving motor 60, a threaded shaft 61 and a guide rod 62. A driving motor 60 capable of lifting the transformer body 2 is provided on the right side of the support frame 50. A threaded shaft 61 is connected to the output shaft of the driving motor 60. The threaded shaft 61 is threadedly connected to the right side of the bottom plate 1. A guide rod 62 is connected to the left side of the support frame 50. The guide rod 62 is slidably connected to the bottom plate 1. The liquid level sensor 51 is electrically connected to the driving motor 60.

[0040] When people need to use this device, they can place the device in the cellar and then start the operation of the transformer body 2, enabling the transformer body 2 to convert high-voltage current into current with the same frequency but different voltage to meet the power consumption needs. Since the transformer body 2 generates high temperature during operation, before the transformer body 2 starts working, people can connect the condensation device to the delivery pipe 44. During the use of the transformer body 2, the dual-axis motor 41, the water pump 49, the nozzle 410 and the condensation device are all connected to the power supply and start working. The condensation device injects cold air into the delivery pipe 44 and then into the support frame 40. The rotation of the output shaft of the dual-axis motor 41 drives the rotation of the two fan blades 42. The rotation of the right fan blade 42 draws the cold air in the support frame 40 into the transformer body 2 and then flows inside the transformer body 2. Since the transformer body 2 is located underground, the gas inside the transformer body 2 is relatively stuffy and humid. When the cold air flows inside, it takes away the heat. The rotation of the left fan blade 42 draws the humid and hot gas out of the inside of the transformer body 2 and then into the output pipe 45. Initially, a large amount of cooling water is stored in the water tank 46. When the water pump 49 starts, the water pump 49 pumps the cooling water inside the water tank 46 to the nozzle 410 through the connecting pipe 48, and the cooling water is sprayed out through the nozzle 410. After the cooling water is sprayed out, it contacts the output pipe 45, causing the humid and hot gas inside the output pipe 45 to liquefy when cooled. The liquefied liquid flows into the collection box 47 for collection. At the same time, the cooling water absorbs heat and evaporates and vaporizes. Thus, under the action of the cooling water, the humid and hot gas inside the output pipe 45 can be liquefied when cooled, which is conducive to collection and preservation. In this way, in high-temperature or humid weather, the inside of the transformer body 2 can be cooled by the way of gas evaporation cooling to ensure the normal operation of the transformer body 2 and prevent the components inside the transformer body 2 from being damaged at high temperature. After the transformer body 2 is started, the liquid level sensor 51 is also connected to the power supply and starts working. When the rainwater on the ground surface penetrates into the cellar in bad weather, the water level in the cellar will gradually rise and then exceed the liquid level sensor 51. The liquid level sensor 51 will control the alarm 52 and the drive motor 60 to be connected to the power supply and work. The alarm 52 will give an alarm. The alarm 52 is connected to the staff's mobile phone. When the alarm 52 gives an alarm, it will be transmitted to the staff's mobile phone through the communicator, thus warning the staff. After the drive motor 60 is started, the positive rotation of the output shaft drives the rotation of the threaded shaft 61, causing the threaded shaft 61 to drive the bottom plate 1 to move upward along the guide rod 62. The bottom plate 1 no longer contacts the support frame 50. The upward movement of the bottom plate 1 drives the transformer body 2 and the cooling mechanism 4 to move upward as a whole, and then drives the alarm 52 to move upward. After the bottom plate 1 moves upward to the limit, the drive motor 60 automatically shuts down. In this way, the transformer body 2 is away from the rainwater, preventing the rainwater from penetrating into the inside of the transformer body 2. After the staff receives the signal, they can turn off the alarm 52 to make it stop giving an alarm, and then the staff can rush to the cellar in time to drain the water.After the water level drops and no longer exceeds the liquid level sensor 51, the liquid level sensor 51 controls the drive motor 60 to run in the reverse direction, so that the output shaft of the drive motor 60 reverses and drives the threaded shaft 61 to reverse, thereby driving the bottom plate 1 to move downward along the guide rod 62, so that the bottom plate 1 drives the transformer body 2 and the cooling mechanism 4 to move downward as a whole, thereby driving the alarm 52 to move downward. After the bottom plate 1 moves downward to the limit, the drive motor 60 automatically shuts down. In this way, with the cooperation of the liquid level sensor 51 and the lifting mechanism 6, it is possible to prevent rainwater from soaking the transformer body 2 for a long time, and reduce the probability of rainwater penetrating into the transformer body 2, thereby buying time for the staff.

[0041] Example 2

[0042] On the basis of Example 1, Figure 1 , Figure 10 and Figure 11 As shown in the figure, it also includes a collecting mechanism 7, which includes a support rod 70, a charging box 71, a water pipe 72, a piston rod 73, a return spring 74, a one-way valve 75 and a liquid pump 76. Support rods 70 are welded on the left and right side walls of the support frame 50, and a charging box 71 is provided on the top of the support rod 70. The top surface of the charging box 71 is a transparent plate, so that the staff can check the amount of water inside the charging box 71 and discharge it in time. Water pipes 72 are provided on the front and back sides of the charging box 71, and a one-way valve 75 is installed in the middle of the water pipe 72. A piston rod 73 that can squeeze rainwater is slidably provided on the upper side of the water pipe 72, and a return spring 74 is connected between the piston rod 73 and the inside of the adjacent water pipe 72. A liquid pump 76 is provided on the outside of the charging box 71.

[0043] exist Figure 1 and Figure 12 As shown in the figure, it also includes a toggle mechanism 8, which includes a connecting rod 80, a toggle rod 81 and a connecting shaft 82. Connecting rods 80 are provided on the front and rear sides of the charging box 71. The toggle rods 81 are rotatably connected to the connecting rods 80. Connecting shafts 82 are provided on the outer sides of the piston rods 73. The connecting shafts 82 are slidably connected to the adjacent toggle rods 81. The bottom plate 1 can contact the toggle rods 81 when it moves upward.

[0044] When water seeps into the cellar, the liquid level sensor 51 controls the driving motor 60 to operate, so that the bottom plate 1 and the transformer body 2 can be driven to move upward. When the bottom plate 1 moves to contact the toggle rod 81, the toggle rod 81 will be pushed to rotate along the connecting rod 80, so that the toggle rod 81 drives the connecting shaft 82 to move outward, and the connecting shaft 82 can pull the piston rod 73 to move outward, and the return spring 74 is compressed, so that the piston rod 73 draws rainwater in the cellar through the water pipe 72, and the rainwater can be drawn into the water pipe 72 through the one-way valve 75, so that the rainwater level in the cellar drops, and then no longer passes over the liquid level sensor 51. The liquid level sensor 51 can control the driving motor 60 to operate in the reverse direction, so that the driving motor 60 drives the bottom plate 1 and the transformer body 2 to move downward, and the bottom plate 1 is no longer in contact with the toggle rod 81. The piston rod 73 will move inward and reset under the reset action of the reset spring 74, and then pull the connecting shaft 82 to move inward, so that the connecting shaft 82 can move inward. The connecting shaft 82 drives the toggle rod 81 to rotate in the opposite direction along the connecting rod 80 to reset. The reset of the piston rod 73 will push the rainwater inside the water pipe 72. Because the one-way valve 75 is one-way, the rainwater in the water pipe 72 cannot flow back into the cellar downward, and then is squeezed by the piston rod 73 and sprayed into the charging box 71 from both sides of the one-way valve 75. If the ground surface is still seeping water at this time, when the rainwater passes over the liquid level sensor 51 again, the liquid level sensor 51 will repeat the above operation and then pump water through the piston rod 73, and then store it in the charging box 71, thereby preventing more and more rainwater in the cellar from soaking the transformer body 2, so as to facilitate drainage after the staff arrives. After the staff drains the rainwater in the cellar, the staff can connect the external pipe to the liquid pump 76, and then open the liquid pump 76 to drain the rainwater in the charging box 71. After the rainwater is discharged, the liquid pump 76 is closed, and then the external pipe can be removed.

[0045] exist Figure 1 and Figure 13 As shown in the figure, it also includes a buffer mechanism 9, which includes a buffer seat 90 and a buffer spring 91. The buffer seats 90 are symmetrically slidably provided on the left and right sides of the bottom of the support frame 50. The connection between the buffer seat 90 and the support frame 50 is coated with damping material, and the buffer seat 90 and the support frame 50 are connected with a buffer spring 91 for shock absorption.

[0046] After people put the entire device into the cellar, the buffer spring 91 will be compressed due to the weight of the entire device. Since the device is located underground, when there are occasional minor earthquakes in the eastern region, the buffer spring 91 can eliminate part of the force brought to the buffer seat 90 by the underground, thereby preventing the transformer body 2 from being violently vibrated and tipping over, thereby ensuring safety. At the same time, the damping material can prevent the entire device from shaking up and down too quickly.

[0047] Although the present disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. Gas evaporation-cooled buried box-type transformer, comprising a bottom plate (1), a transformer body (2) and bushings (3). The transformer body (2) is installed on top of the bottom plate (1), and bushings (3) are symmetrically installed on the left and right at the top of the transformer body (2). The two bushings (3) are respectively sleeved on the outgoing wires and input wires of the transformer body (2). Its characteristics are as follows: It further includes a cooling mechanism (4), an alarm mechanism (5) and a lifting mechanism (6). The cooling mechanism (4) is provided at the rear side of the transformer body (2), and the cooling mechanism (4) can cool the inside of the transformer body (2). An alarm mechanism (5) is provided on the bottom plate (1), and a lifting mechanism (6) is provided on the alarm mechanism (5). The cooling mechanism (4) includes a support frame (40), a double-shaft motor (41), fan blades (42), a delivery pipe (44), an output pipe (45), a water tank (46), a collection box (47), a connecting pipe (48), a water pump (49) and spray nozzles (410). A support frame (40) is welded to the rear wall of the transformer body (2). A double-shaft motor (41) is installed in the middle of the support frame (40). Fan blades (42) are connected to both output shafts of the double-shaft motor (41). The right fan blade (42) is in a shape of curling inwards, and the left fan blade (42) is in a shape of curling outwards. The right rear part of the support frame (40) is connected to a delivery pipe (44), and the left rear part of the support frame (40) is connected to an output pipe (45). The left rear part of the transformer body (2) is fixedly connected to a water tank (46), and the water tank (46) can wrap the output pipe (45). The lower part of the rear side of the water tank (46) is fixedly connected to a collection box (47), and the collection box (47) communicates with the output pipe (45). The left side of the bottom of the water tank (46) is fixedly connected to a connecting pipe (48). A water pump (49) is fixedly connected to the upper part of the left side surface of the water tank (46). The water outlet pipe of the water pump (49) extends into the inside of the water tank (46), and the water inlet pipe of the water pump (49) is connected to the connecting pipe (48). Four spray nozzles (410) are spacedly connected to the water outlet pipe of the water pump (49), and all four spray nozzles (410) are located above the output pipe (45). The alarm mechanism (5) includes a support frame (50), a liquid level sensor (51) and an alarm (52). The support frame (50) is slidably provided at the bottom of the bottom plate (1). The liquid level sensor (51) is installed at the rear side of the support frame (50), and the liquid level sensor (51) passes through the bottom plate (1). An alarm (52) capable of giving an alarm is provided at the front side of the top of the transformer body (2), and the alarm (52) is electrically connected to the liquid level sensor (51). The lifting mechanism (6) includes a driving motor (60), a threaded shaft (61) and a guide rod (62). The driving motor (60) is provided at the right side of the support frame (50). A threaded shaft (61) capable of driving the transformer body (2) to move upwards is connected to the output shaft of the driving motor (60), and the threaded shaft (61) is threadedly connected to the right side of the bottom plate (1). The left side of the support frame (50) is connected to a guide rod (62), and the guide rod (62) is slidably connected to the bottom plate (1). The liquid level sensor (51) is electrically connected to the driving motor (60).

2. The gas evaporative cooling underground box transformer according to claim 1, Its characteristics are: The invention also comprises a collecting mechanism (7) capable of collecting rainwater in the cellar, wherein the collecting mechanism (7) comprises a support rod (70), a loading box (71), a water pipe (72), a piston rod (73), a return spring (74), a one-way valve (75) and a liquid pump (76). Support rods (70) are arranged on the left and right side walls of the support frame (50), a loading box (71) is arranged on the top of the support rod (70), water pipes (72) are arranged on the front and rear sides of the loading box (71), a one-way valve (75) is installed in the middle of the water pipe (72), a piston rod (73) is slidably arranged on the upper side of the water pipe (72), a return spring (74) is connected between the piston rod (73) and the inside of the adjacent water pipe (72), and a liquid pump (76) for drainage is arranged on the outside of the loading box (71).

3. The gas evaporative cooling underground box transformer according to claim 2, Its characteristics are: The utility model also comprises a toggle mechanism (8) capable of pumping rainwater in the cellar, the toggle mechanism (8) comprising a connecting rod (80), a toggle rod (81) and a connecting shaft (82), the charging box (71) is provided with connecting rods (80) on both the front and rear sides, the connecting rods (80) are rotatably connected to the toggle rods (81), the outer side of the piston rod (73) is provided with a connecting shaft (82), the connecting shaft (82) is slidably connected to the adjacent toggle rods (81), and the bottom plate (1) moves upward to contact the toggle rods (81).

4. The gas evaporative cooling underground box transformer according to claim 3, Its characteristics are: The invention also comprises a buffer mechanism (9) capable of reducing shock to the transformer body (2), the buffer mechanism (9) comprising a buffer seat (90) and a buffer spring (91), the buffer seats (90) are symmetrically slidably arranged on both left and right sides of the bottom of the support frame (50) in a front-to-back manner, the connection between the buffer seat (90) and the support frame (50) is coated with a damping material, and the buffer seat (90) and the support frame (50) are connected with a buffer spring (91).

5. The gas evaporative cooling underground box transformer according to claim 4, Its characteristics are: The top surface of the charging box (71) is a transparent plate.

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