A support structure for a power distribution cabinet

Abstract

The present invention provides a support structure of a power distribution cabinet, wherein a cabinet body of the power distribution cabinet is slidably arranged on the support structure, and the support structure comprises a floating support mechanism and a driving lifting mechanism; wherein the floating support mechanism is fixedly arranged on a fixed base plate to be installed, and is used to support the driving lifting mechanism; the driving lifting mechanism is placed on the floating mechanism, and is arranged together with the fixed base plate through a flexible connector, and is used to drive the lifting operation of the cabinet body; the driving lifting mechanism comprises a frame, a driving component arranged on the frame, and a lifting plate arranged on the driving component, and the cabinet body is arranged on the lifting plate. The present invention can realize floating support of the power distribution cabinet through the floating support mechanism, and can cooperate with the driving lifting mechanism to realize the height of the cabinet body of the power distribution cabinet when a rainstorm or a flood occurs, so as to ensure the normal operation of the power distribution cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of supporting equipment, and in particular to a supporting structure of a power distribution cabinet. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet, which is the final equipment of the power distribution system. The distribution cabinet is a general term for the motor control center. A large number of components are installed in the distribution cabinet to provide protection, monitoring and control for the load. During use, the support structure is often used to create a certain distance between the cabinet body of the distribution cabinet and the ground to prevent ground moisture from entering the cabinet body of the distribution cabinet. At present, the support structure of the outdoor distribution cabinet adopts an integral structure, and the distribution cabinet is mostly fixed to the ground with expansion screws.

[0003] After the installation of traditional distribution cabinets, especially outdoor distribution cabinets, is completed, the height of the installation is usually fixed. When heavy rainfall occurs, rainwater accumulates and can easily penetrate into the distribution cabinet, causing the distribution cabinet to malfunction and be unable to be used normally. Summary of the invention

[0004] In view of this, the present invention provides a support structure for a distribution cabinet, which can realize the lifting operation of the distribution cabinet through a floating support mechanism cooperating with a driving lifting mechanism. The height of a traditional distribution cabinet is usually fixed after installation. When heavy rainfall occurs, rainwater accumulates and it is easy to seep into the distribution cabinet, causing the distribution cabinet to malfunction and cannot be used normally.

[0005] In order to solve the above technical problems, the present invention provides a support structure of a distribution cabinet, and the cabinet body of the distribution cabinet is slidably arranged on the support structure, and the support structure includes a floating support mechanism and a driving lifting mechanism; wherein the floating support mechanism is fixedly arranged on a fixed base plate to be installed, and is used to support the driving lifting mechanism; the driving lifting mechanism is placed on the floating mechanism, and is arranged together with the fixed base plate through a flexible connector, and is used to drive the lifting operation of the cabinet body; the driving lifting mechanism includes a frame, a driving component arranged on the frame, and a lifting plate arranged on the driving component, and the cabinet body is arranged on the lifting plate. The present invention can realize floating support of the distribution cabinet through the floating support mechanism, and can cooperate with the driving lifting mechanism to realize the height of the cabinet body of the distribution cabinet when a sudden rainstorm or flood occurs, so as to ensure the normal operation of the distribution cabinet and avoid water ingress into the distribution cabinet caused by extreme weather such as heavy rain, which causes short-circuit lamp failure of electrical components in the distribution cabinet and makes it impossible to perform power supply operations. The operation is safer and more convenient, and the applicability is stronger.

[0006] The driving assembly includes fixed plates respectively arranged on the upper part of the frame and located on the front and rear outer walls of the cabinet, wherein a driving member is arranged on the outer side of the fixed plate on one side, a first rotating shaft is arranged at the output shaft end of the driving member, and the other end of the first rotating shaft is rotatably arranged on the inner wall of the fixed plate on the other side through a bearing, first bevel gears are respectively arranged at both ends of the first rotating shaft, each first bevel gear is meshed with a second bevel gear transmission-connected thereto, a second rotating shaft is arranged on the upper part of the rotating shaft of each second bevel gear, a screw is arranged on the upper part of each second rotating shaft, and a lifting plate is threadedly connected to each screw.

[0007] The frame is also provided with a guide assembly for cooperating with the screw to limit and guide the vertical movement of the cabinet. The guide assembly includes guide holes opened on the lifting plate and located on both sides of the screw. A guide rod is inserted in each guide hole. The lower ends of the two guide rods on the same lifting plate are arranged on the upper part of the frame, and the upper parts of the two guide rods on the same lifting plate are provided with support rods.

[0008] The floating support mechanism comprises a buoyancy chamber arranged at the lower part of the frame and a water storage chamber arranged at the upper part of the buoyancy chamber and connected thereto. A buoyancy trigger matched with a driving member is arranged inside the buoyancy chamber.

[0009] A threaded sleeve is arranged on the lifting plate and on the axis of the screw rod, and the screw rod is threadably connected and passes through the threaded sleeve.

[0010] A guide hole is respectively formed on each lifting plate, a guide rod is inserted into each guide hole, and two ends of the guide rod are respectively fixed to the lower part of the fixing plate located on the same side as the guide rod.

[0011] A guide seat is arranged on the outer wall of the cabinet, and a through hole matched with the guide rod is opened on the guide seat. A wiring board is arranged at the bottom of the cabinet, and connecting wires greater than the maximum height of the cabinet are placed in the wiring board.

[0012] The driving part is a servo motor, and the start switch of the servo motor is located just above the buoyancy trigger.

[0013] The buoyancy trigger comprises a floating plate placed inside the buoyancy chamber, a push rod is arranged on the upper part of the floating plate and located on the axis of the starting switch, a push pin is arranged on the upper part of the push rod, and the push pin is located just below the starting switch of the servo motor.

[0014] The flexible connecting piece is a steel wire rope, one end of which is fixed on the frame, and the other end of which is fixed on the fixed base plate through an expansion screw.

[0015] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0016] 1. The present invention can achieve temporary storage of rainwater in heavy rainfall through the buoyancy chamber and the water storage tank. At the same time, the buoyancy of the water entering the buoyancy chamber can push the buoyancy trigger upward to turn on the start switch of the servo motor. The rotation of the output shaft of the servo motor can drive the lifting plate to lift the vertical height of the distribution cabinet above it, thereby avoiding the distribution cabinet from being unable to power supply normally due to water accumulation in the distribution cabinet, ensuring the normal power supply operation of the distribution cabinet in extreme waterlogging weather such as heavy rain, providing the necessary time for maintenance personnel to repair, and making the operation safer and more convenient.

[0017] 2. The present invention can drive the first rotating shaft and the first bevel gears at both ends to rotate by rotating the output shaft of the driving motor. The rotation of the first bevel gear can drive the second bevel gear meshing with the first bevel gear to rotate while driving the screw on the upper part of the device to rotate. The rotation of the screw can drive the lifting plate threadedly connected with the first rotating shaft to lift and adjust the vertical height of the cabinet on the upper part. The operation is more convenient and efficient, and the synchronous driving operation of the two screws can be achieved through one driving member, thereby achieving synchronous adjustment of the lifting operation of the lifting plate, effectively avoiding the increased wear of the driving components caused by the mismatch between the actions of the driving units in the process of raising the height of the distribution box in the traditional multiple separate driving method, saving a certain cost, and making the operation safer and more convenient.

[0018] 3. The present invention can prevent the outdoor distribution cabinet from corroding the clamps during use or rainwater from seeping in from the top of the distribution cabinet and corroding the cabinet body by arranging a sunshade and rainproof awning on the upper part of the support rod, thereby greatly improving the service life of the distribution cabinet and making the operation more convenient and efficient.

[0019] 4. The present invention can realize the firm and flexible connection operation between the frame and the fixed base plate through the steel wire rope, so as to provide the necessary space when the cabinet of the power distribution cabinet is pushed up by the lifting plate under the driving action of the driving component, and can limit the position of the frame within a certain range, so that the operation is more convenient and efficient.

[0020] 5. The present invention can ensure that when heavy rainfall reaches the warning value, the electric furnace in the distribution box is always in a connected state during the process of the drive component driving the cabinet to rise, thereby ensuring the normal operation of the distribution cabinet, by placing connecting wires that are greater than the maximum height of the cabinet lifting in the wiring board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the supporting structure of the power distribution cabinet and the power distribution cabinet of the present invention;

[0022] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 It is a side view of the supporting structure and the power distribution cabinet of the present invention;

[0024] Figure 4 For the present invention Figure 3 Sectional view at the middle BB;

[0025] Figure 5 It is a partial structural schematic diagram of the driving lifting mechanism in the supporting structure of the present invention.

[0026] Explanation of the reference numerals: 100, cabinet; 101, guide seat; 102, through hole; 103, wiring board; 200, floating support mechanism; 210, buoyancy chamber; 220, water storage chamber; 230, buoyancy trigger; 231, floating plate; 232, push rod; 233, push pin; 300, driving lifting mechanism; 310, frame; 320, driving assembly; 321, fixing plate; 322, driving member; 323, first rotating shaft; 324, first bevel gear; 325, second bevel gear; 326, second rotating shaft; 327, screw; 330, lifting plate; 331, threaded sleeve; 332, guide hole; 340, support rod; 400, guide assembly; 401, guide rod. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will be combined with the appended drawings of the embodiments of the present invention. Figure 1-5 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0028] like Figure 1-5As shown: This embodiment provides a support structure of a power distribution cabinet, wherein the cabinet body 100 of the power distribution cabinet is slidably arranged on the support structure, and the support structure includes a floating support mechanism 200 and a driving lifting mechanism 300; wherein the floating support mechanism 200 is fixedly arranged on a fixed base plate to be installed, and is used to support the driving lifting mechanism 300; the driving lifting mechanism 300 is placed on the floating mechanism, and is arranged together with the fixed base plate through a flexible connector, and the flexible connector is a steel wire rope, one end of the steel wire rope is fixedly arranged on a frame 310, and the other end is fixedly arranged on a fixed base plate through an expansion screw. The present invention can realize a firm and flexible connection operation between the frame 310 and the fixed base plate through the steel wire rope, and realize that when the cabinet body 100 of the power distribution cabinet is pushed by the lifting plate 330 to perform an ascending operation under the driving action of the driving component 320, it provides the necessary The lifting mechanism 300 can be used to drive the lifting operation of the cabinet 100; the driving lifting mechanism 300 includes a frame 310, a driving component 320 arranged on the frame 310, and a lifting plate 330 arranged on the driving component 320. The cabinet 100 is arranged on the lifting plate 330. The present invention can realize floating support of the distribution cabinet through the floating support mechanism 200, and can cooperate with the driving lifting mechanism 300 to realize the height of the cabinet 100 of the distribution cabinet when a sudden rainstorm or flood occurs, so as to ensure the normal operation of the distribution cabinet and avoid water ingress into the distribution cabinet caused by extreme weather such as heavy rain, causing short-circuit lamp failure of electrical components in the distribution cabinet, and the problem of being unable to perform power supply operations. The operation is safer and more convenient, and the applicability is stronger.

[0029] According to one embodiment of the present invention, Figure 1-5As shown, the driving assembly 320 includes fixing plates 321 respectively arranged on the upper part of the frame 310 and located on the front and rear outer side walls of the cabinet 100, wherein a driving member 322 is arranged on the outer side of the fixing plate 321 on one side, and the driving member 322 is a servo motor, and the start switch of the servo motor is located directly above the buoyancy trigger 230, and a first rotating shaft 323 is arranged on the output shaft end of the driving member 322, and the other end of the first rotating shaft 323 is rotatably arranged on the inner side wall of the fixing plate 321 on the other side through a bearing, and the first rotating shaft 323 is arranged on the inner side wall of the fixing plate 321 on the other side. The first bevel gear 324 is provided at both ends of the lifting plate 23, and each first bevel gear 324 is meshed with a second bevel gear 325 connected thereto. The first bevel gear 324 is meshed with the second bevel gear 325, and the second bevel gear 325 is rotated together by the rotation of the first bevel gear 324, thereby converting the horizontal rotation into the vertical rotation operation with the screw 327. In addition, the screw 327 is connected to the lifting plate 330 by a threaded connection, and the vertical rotation of the screw 327 is converted into the lifting plate 330. The lifting operation of the vertical height of 0 is more convenient and efficient to operate. A second rotating shaft 326 is arranged on the upper part of the rotating shaft of each second bevel gear 325, and a screw 327 is arranged on the upper part of each second rotating shaft 326. Each screw 327 is threadedly connected with a lifting plate 330. The present invention can drive the first rotating shaft 323 and the first bevel gears 324 at both ends thereof to rotate by the rotation of the output shaft of the driving member 322. The rotation of the first bevel gear 324 can drive the second bevel gear 325 meshing therewith to rotate while driving the screw 327 on the upper part of the device to rotate together. The rotation of the screw 327 can drive the lifting plate 330 threadedly connected thereto to carry out lifting and adjusting operation of the vertical height of the cabinet 100 on the upper part thereof, which is more convenient and efficient to operate. Moreover, the synchronous driving operation of the two screws 327 can be realized by one driving member 322, thereby realizing the synchronous adjustment of the lifting operation of the lifting plate 330, effectively avoiding the problem of aggravated wear of the driving component 320 and a shorter service life caused by the action mismatch existing in the traditional single driving method.

[0030] According to another embodiment of the present invention, Figure 1 and Figure 5 As shown, the frame 310 is also provided with a guide assembly 400 for cooperating with the screw 327 to limit and guide the vertical movement of the cabinet 100. The guide assembly 400 includes guide holes 332 opened on the lifting plate 330 and located on both sides of the screw 327. A guide rod 401 is inserted in each guide hole 332. The lower ends of the two guide rods 401 on the same lifting plate 330 are arranged on the upper part of the frame 310. The upper parts of the two guide rods 401 on the same lifting plate 330 are both provided with support rods 340. The present invention can realize a more stable and efficient lifting operation of the lifting plate 330 with the cabinet 100 through the guide assembly 400, which greatly improves the service life of the lifting mechanism.

[0031] According to another embodiment of the present invention, Figure 1 and Figure 2 As shown, the floating support mechanism 200 includes a buoyancy chamber 210 arranged at the lower part of the frame 310 and a water storage chamber 220 arranged at the upper part of the buoyancy chamber 210 and connected thereto. A water inlet hole with a filter is provided at the bottom of the buoyancy chamber 210 to facilitate the accumulation of rainwater entering the buoyancy chamber to provide an upward floating support thrust for the buoyancy trigger 230. The interior of the buoyancy chamber 210 is provided with a buoyancy trigger 230 that cooperates with a driving member 322. When the buoyancy trigger 230 does not conflict with the starting switch of the servo motor, the starting switch is in a disconnected state. At this time, the driving lifting mechanism 300 does not work. The operation of the driving lifting mechanism 300 needs to ensure that the buoyancy trigger 230 always moves upward. The start switch of the servo motor is in a squeezed and tightened state. The present invention can detect rainwater during heavy rainfall through the buoyancy chamber 210 and at the same time, through the water level change of the water entering the buoyancy chamber 210, the buoyancy trigger 230 is lifted up to trigger the driving lifting mechanism 300 to perform corresponding driving work, so that when the water level of heavy rainfall reaches the warning value, it is convenient to ensure the normal supply of electricity by raising the height of the cabinet 100, and the rainwater of heavy rainfall can be further temporarily stored through the water storage tank 220, which provides a certain time extension for the repair work of the repair personnel, ensures the normal power supply of the distribution cabinet, and makes the operation safer and more convenient.

[0032] According to another embodiment of the present invention, Figure 1 and Figure 3 As shown, a threaded sleeve 331 is provided on the lifting plate 330 and located on the axis of the screw 327, and the screw 327 is threadedly connected and passes through the threaded sleeve 331. The present invention can realize the cooperation between the threaded sleeve 331 and the screw 327, so that the rotating screw 327 drives the threaded sleeve 331 to carry the lifting plate 330 thereon and the cabinet 100 on the lifting plate 330 to perform lifting operations along the screw 327, which makes the operation more convenient.

[0033] According to another embodiment of the present invention, Figure 1 and Figure 4 As shown, each lifting plate 330 is respectively provided with a guide hole 332, and a guide rod 401 is inserted into each guide hole 332. The two ends of the guide rod 401 are respectively fixed to the lower part of the fixed plate 321 located on the same side as it. The present invention can guide the lifting plate 330 through the guide rod 401, so that when the screw 327 rotates and drives the threaded sleeve 331 to carry the lifting plate 330 thereon and the cabinet 100 on the lifting plate 330 to perform a lifting operation along the screw 327 more stably.

[0034] A guide seat 101 is provided on the outer wall of the cabinet 100, and a through hole 102 compatible with the guide rod 401 is opened on the guide seat 101. A wiring board 103 is provided at the bottom of the cabinet 100, and connecting wires greater than the maximum lifting height of the cabinet 100 are placed in the wiring board 103. The present invention can place connecting wires greater than the maximum lifting height of the cabinet 100 in the wiring board 103 to ensure that when heavy rainfall reaches the warning value, the driving component 320 drives the cabinet 100 to rise, thereby ensuring that the electric furnace in the distribution box is always in a connected state, thereby ensuring the normal operation of the distribution cabinet.

[0035] The buoyancy trigger 230 includes a float plate 231 placed inside the buoyancy chamber 210, and a push rod 232 is arranged on the upper part of the float plate 231 and on the axis of the starting switch, and a push pin 233 is arranged on the upper part of the push rod 232, and the push pin 233 is located directly below the starting switch of the servo motor. The present invention can push the float plate 231 with the push rod 232 and the push pin 233 to trigger the starting switch to be in an open state through the rising water level entering the buoyancy chamber 210, thereby driving the output shaft of the servo motor to rotate to drive the lifting plate 330 and the cabinet 100 thereon to perform a vertical height lifting operation, thereby preventing rainwater from accumulating into the distribution box, causing the distribution box to short-circuit and be unable to supply power normally, and the operation is more convenient and efficient.

[0036] Method of use of the present invention:

[0037] First of all, it should be made clear that the support structure involved in the present invention is mainly used for the floating support operation of the distribution cabinet, and is used to avoid the problem of water ingress into the distribution cabinet due to severe water accumulation due to heavy rainfall. It is mainly set up outdoors or near the river. The fixing method is that after pouring, the steel wire rope can be fixed to the pouring base with the help of expansion screws, and the other end can be welded to the lower part of the frame 310. The connection method is various, and no excessive elaboration and limitation are made here. The present invention takes the accumulation of rainwater during heavy rainfall to trigger the drive lifting as an example to explain its use method in detail. When it is rainy, as the rainwater accumulates, the buoyancy cabin 210 cooperates with the water storage tank to achieve temporary storage of rainwater under heavy rainfall, and at the same time, it can enter the floating cabin. The buoyancy of the water in the force cabin 210 pushes the buoyancy trigger 230 to move upward until the start switch of the servo motor is turned on. The rotation of the output shaft of the servo motor can drive the lifting plate 330 to lift the vertical height of the distribution cabinet above it, thereby avoiding the distribution cabinet from being unable to power supply normally due to water entering the distribution cabinet, ensuring the normal power supply operation of the distribution cabinet in extreme waterlogging weather such as heavy rain, providing maintenance personnel with the necessary time for emergency repairs, and making the operation safer and more convenient. In this process, the working principle of the driving lifting mechanism 300 is: the rotation of the output shaft of the driving motor drives the rotation of the first rotating shaft 323 and the first bevel gears 324 at both ends thereof, and the rotation of the first bevel gear 324 can drive the meshing therewith. The rotation of the screw 327 can drive the lifting plate 330 threadedly connected thereto to lift and adjust the vertical height of the cabinet 100 above it, which is more convenient and efficient to operate. The synchronous driving operation of the two screws 327 can be achieved through one driving member 322, thereby achieving synchronous adjustment of the lifting operation of the lifting plate 330, effectively avoiding the aggravated wear of the drive assembly 320 caused by the mismatch between the actions of the driving units in the process of raising the height of the distribution box in the traditional multiple separate driving methods, and also saving a certain amount of cost. The operation is safer and more convenient. The rotation of the first rotating shaft 323 and the first bevel gears 324 at both ends thereof rotate. The rotation of the first bevel gear 324 can drive the second bevel gear 325 meshing therewith to rotate while driving the screw 327 on the upper part of the device to rotate. The rotation of the screw 327 can drive the lifting plate 330 threadedly connected thereto to lift and adjust the vertical height of the cabinet 100 on it. The operation is more convenient and efficient, and the synchronous driving operation of the two screws 327 can be achieved through a driving member 322, thereby achieving synchronous adjustment of the lifting operation of the lifting plate 330, effectively avoiding the problem of increased wear of the driving component 320 and a shorter service life caused by the action mismatch existing in the traditional single driving method.

[0038] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A supporting structure for a power distribution cabinet, characterized in that: The cabinet body (100) of the power distribution cabinet is slidably arranged on the support structure, and the support structure comprises a floating support mechanism (200) and a driving lifting mechanism (300); Wherein, the floating support mechanism (200) is fixedly mounted on a fixed base plate to be installed, and is used to support the driving lifting mechanism (300); A driving lifting mechanism (300) is placed on the floating mechanism and is arranged together with the fixed base plate through a flexible connection piece, and is used to drive the lifting operation of the cabinet (100); The driving lifting mechanism (300) comprises a frame (310), a driving assembly (320) arranged on the frame (310), and a lifting plate (330) arranged on the driving assembly (320); the cabinet (100) is arranged on the lifting plate (330).

2. The supporting structure of the power distribution cabinet according to claim 1, characterized in that: The driving assembly (320) comprises fixing plates (321) respectively arranged on the upper part of the frame (310) and located on the front and rear outer side walls of the cabinet (100), wherein a driving member (322) is arranged on the outer side of the fixing plate (321) on one side, a first rotating shaft (323) is arranged at the output shaft end of the driving member (322), the other end of the first rotating shaft (323) is rotatably arranged on the inner side wall of the fixing plate (321) on the other side through a bearing, first bevel gears (324) are respectively arranged at both ends of the first rotating shaft (323), each of the first bevel gears (324) is meshed with a second bevel gear (325) transmission-connected thereto, a second rotating shaft (326) is arranged on the upper part of the rotating shaft of each of the second bevel gears (325), a screw (327) is arranged on the upper part of each of the second rotating shafts (326), and a lifting plate (330) is threadedly connected to each of the screws (327).

3. The supporting structure of the power distribution cabinet according to claim 2, characterized in that: The frame (310) is also provided with a guide assembly (400) for limiting and guiding the vertical movement of the cabinet (100) in cooperation with the screw rod (327); the guide assembly (400) comprises guide holes (332) provided on the lifting plate (330) and located on both sides of the screw rod (327); a guide rod (401) is inserted into each of the guide holes (332); the lower ends of the two guide rods (401) on the same lifting plate (330) are arranged on the upper part of the frame (310); and the upper parts of the two guide rods (401) on the same lifting plate (330) are both provided with support rods (340).

4. The supporting structure of the power distribution cabinet according to claim 3, characterized in that: The floating support mechanism (200) comprises a buoyancy chamber (210) arranged at the bottom of a frame (310) and a water storage chamber (220) arranged at the top of the buoyancy chamber (210) and connected thereto. A buoyancy trigger (230) cooperating with a driving member (322) is arranged inside the buoyancy chamber (210).

5. The supporting structure of the power distribution cabinet according to claim 4, characterized in that: A threaded sleeve (331) is disposed on the lifting plate (330) and located on the axis of the screw rod (327). The screw rod (327) is threadedly connected and passes through the threaded sleeve (331).

6. The supporting structure of the power distribution cabinet according to claim 5, characterized in that: A guide hole (332) is respectively formed on each lifting plate (330), a guide rod (401) is inserted into each guide hole (332), and both ends of the guide rod (401) are respectively fixed to the lower part of the fixing plate (321) located on the same side as the guide rod.

7. The supporting structure of the power distribution cabinet according to claim 6, characterized in that: A guide seat (101) is arranged on the outer wall of the cabinet (100), and a through hole (102) adapted to the guide rod (401) is opened on the guide seat (101). A wiring board (103) is arranged at the bottom of the cabinet (100), and connecting wires greater than the maximum height of the cabinet (100) are placed in the wiring board (103).

8. The supporting structure of the power distribution cabinet according to claim 7, characterized in that: The driving member (322) is a servo motor, and a start switch of the servo motor is located directly above the buoyancy trigger (230).

9. The supporting structure of the power distribution cabinet according to claim 8, characterized in that: The buoyancy trigger (230) comprises a floating plate (231) placed inside the buoyancy chamber (210), a push rod (232) is arranged on the upper part of the floating plate (231) and located on the axis of the start switch, a push pin (233) is arranged on the upper part of the push rod (232), and the push pin (233) is located directly below the start switch of the servo motor.

10. The supporting structure of the power distribution cabinet according to claim 9, characterized in that: The flexible connecting member is a steel wire rope, one end of which is fixed on the frame (310), and the other end of which is fixed on the fixed base plate through an expansion screw.

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