A maintenance device

Abstract

The present application relates to a maintenance device, and relates to the technical field of electrical equipment maintenance. The maintenance device comprises a first barrel body, which is provided with a first accommodating cavity; a load-bearing plate, which is slidably arranged in the first accommodating cavity, and the load-bearing plate is configured to be connected with an on-load voltage-regulating switch; a lifting device, which is arranged on the first barrel body, and the lifting device is connected to the load-bearing plate, and the lifting device is configured to drive the load-bearing plate to slide in the first accommodating cavity along the height direction of the first barrel body. The maintenance device can improve the problem that the on-load voltage-regulating switch is easily exposed to the external environment during the hoisting and transfer process, and reduce the risk that the on-load voltage-regulating switch is easily contaminated during the transfer process.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment maintenance, and in particular to a maintenance device. Background Art

[0002] The on-load voltage regulator of the transformer in the substation will generate arcs when switching load current, causing wear of the switch contacts and deterioration of the insulating oil quality. Over time, a large amount of oil stains will adhere to the components inside and outside the switch core. Therefore, it is necessary to regularly inspect and clean the on-load voltage regulator to improve the reliability and safety of the power system. In the prior art, before inspecting the on-load voltage regulator, it is necessary to remove the on-load voltage regulator from the transformer, and then use a crane to lift the on-load voltage regulator and transfer it. During the lifting and transfer process, the on-load voltage regulator is exposed to the external environment, which makes the on-load voltage regulator easily contaminated by foreign objects, affecting the performance of the on-load voltage regulator. Summary of the invention

[0003] In order to solve the above technical problems, an embodiment of the present application provides a maintenance device, which can improve the problem that the on-load voltage-regulating switch is easily exposed to the external environment during lifting and transfer, and reduce the risk of the on-load voltage-regulating switch being easily contaminated during transfer.

[0004] According to one aspect of the present application, a maintenance device is provided, comprising:

[0005] The first barrel body is provided with a first accommodating cavity;

[0006] A load-bearing plate is slidably disposed in the first accommodating cavity, and the load-bearing plate is configured to be connected to an on-load voltage regulating switch;

[0007] A lifting device is provided on the first barrel body and connected to the load-bearing plate. The lifting device is configured to drive the load-bearing plate to slide in the first accommodating cavity along the height direction of the first barrel body.

[0008] According to one aspect of the present application, the side wall of the first barrel is provided with a mounting hole communicating with the first accommodating cavity;

[0009] The lifting device comprises:

[0010] A mounting frame, arranged on the side wall of the first barrel along the edge of the mounting hole;

[0011] A lifting slider is slidably connected to the installation frame, and a portion of the lifting slider passes through the installation hole and is connected to the load-bearing plate. The lifting slider is configured to drive the load-bearing plate to slide along the height direction of the first barrel body.

[0012] According to one aspect of the present application, the lifting slider is provided with a screw hole;

[0013] The lifting device also includes:

[0014] A screw rod is rotatably connected to the installation frame, and the screw rod is matched with the screw hole;

[0015] A driving source is connected to the screw rod, and the driving source is configured to drive the screw rod to rotate.

[0016] According to one aspect of the present application, the load-bearing plate comprises:

[0017] A tray body is disposed in the first accommodating cavity, and the tray body is connected to the lifting device;

[0018] A hanging bracket is arranged on the disk body, and the hanging bracket is structured to be connected to the on-load voltage regulating switch.

[0019] According to one aspect of the present application, the disc body comprises:

[0020] A connecting ring, slidingly engaged with the inner wall of the first barrel;

[0021] The reinforcing rib is arranged along the radial direction of the connecting ring, and both ends of the reinforcing rib are connected to the connecting ring; wherein the hanging bracket is arranged on the reinforcing rib.

[0022] According to one aspect of the present application, the maintenance device further includes:

[0023] A rain cover is foldably connected to one end of the first barrel.

[0024] According to one aspect of the present application, the first barrel body is further provided with a first inspection port and a second inspection port, and the first inspection port and the second inspection port are both connected to the first accommodating cavity.

[0025] According to one aspect of the present application, the maintenance device further includes:

[0026] A first sealing sleeve, sleeved on the first inspection opening to seal the first inspection opening;

[0027] The second sealing sleeve is sleeved on the second inspection opening to seal the second inspection opening.

[0028] According to one aspect of the present application, the maintenance device further includes:

[0029] A sealing cover is detachably connected to one end of the first barrel body.

[0030] According to one aspect of the present application, the sealing cover is provided with a hook, and the hook is provided with a hanging hole.

[0031] The maintenance device provided in the present application includes a first barrel body, a load-bearing plate and a lifting device. The first barrel body is provided with a first accommodating chamber, which can be used to accommodate a load-bearing voltage-regulating switch. The load-bearing plate can slide in the first accommodating chamber along the height direction of the first barrel body. The lifting device is arranged on the first barrel body. When the lifting device starts the shaft, the lifting device can drive the load-bearing plate to reciprocate along the height direction of the first barrel body. In this way, when the load-bearing voltage-regulating switch is loaded on the load-bearing plate, the lifting device is started to drive the load-bearing plate to move toward the top of the first barrel body, and the load-bearing voltage-regulating switch also moves toward the top of the first barrel body. During the movement, the load-bearing voltage-regulating switch gradually enters the first accommodating chamber until it completely enters the first accommodating chamber. Then the first barrel body and the load-bearing voltage-regulating switch are hoisted and transferred as a whole. In this way, the load-bearing voltage-regulating switch is not easily exposed to the external environment during the hoisting and transfer process, thereby reducing the risk of the load-bearing voltage-regulating switch being easily contaminated by foreign objects during the transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0033] Figure 1 A schematic structural diagram of a maintenance device provided for an exemplary embodiment of the present application.

[0034] Figure 2 A schematic structural diagram of a maintenance device provided for another exemplary embodiment of the present application.

[0035] Figure 3 A schematic structural diagram of a load-bearing plate provided for an exemplary embodiment of the present application.

[0036] Figure 4 A schematic structural diagram of a sealing cover provided by an exemplary embodiment of the present application.

[0037] Figure 5 A schematic structural diagram of a second barrel body provided for an exemplary embodiment of the present application.

[0038] Figure numerals: 100-maintenance device; 110-first barrel body; 111-first accommodating chamber; 112-first maintenance port; 113-second maintenance port; 120-second barrel body; 121-second accommodating chamber; 122-oil drain port; 123-interface; 130-heating device; 140-oil spray device; 141-spray flange; 142-heating plate; 150-load-bearing plate; 151-plate body; 1511-connecting ring; 1512-reinforcement rib; 152-lifting bracket; 160-lifting device; 161-installation frame; 162-lifting slider; 163-screw rod; 170-rain cover; 180-first sealing sleeve; 190-second sealing sleeve; 200-sealing cover; 201-hook; 202-lifting hole. DETAILED DESCRIPTION

[0039] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described here.

[0040] Figure 1 The schematic diagram of the structure of the maintenance device provided by an exemplary embodiment of the present application is shown in FIG. Figure 1 As shown, the maintenance device 100 provided in the present application may include a first barrel body 110 and a second barrel body 120. The first barrel body 110 and the second barrel body 120 are detachably connected. The first barrel body 110 can be used to hoist an on-load voltage-regulating switch. After the on-load voltage-regulating switch enters the second barrel body 120, relevant components can perform spraying, drying, and other treatments on the on-load voltage-regulating switch. The specific treatment process is described in detail later.

[0041] Figure 2 This is a schematic diagram of the structure of a maintenance device provided by another exemplary embodiment of the present application. Figure 2 As shown, the first barrel body 110 is provided with a first accommodating cavity 111, which can be used to accommodate the aforementioned on-load voltage-regulating switch. When the on-load voltage-regulating switch is located in the first accommodating cavity 111, the first barrel body 110 can protect the on-load voltage-regulating switch and prevent the on-load voltage-regulating switch from being hit by external objects.

[0042] like Figure 2 As shown, the maintenance device 100 may also include a load-bearing plate 150, which can be slidably disposed in the first accommodating chamber 111. Specifically, after the on-load tap-changing switch is removed from the transformer, the on-load tap-changing switch can be loaded on the load-bearing plate 150. During the process of the load-bearing plate 150 reciprocatingly moving along the height direction of the first barrel body 110 in the first accommodating chamber 111, the load-bearing plate 150 can reciprocate along the height direction of the first barrel body 110 with the on-load tap-changing switch.

[0043] like Figure 2 As shown, the maintenance device 100 may also include a lifting device 160, which is disposed on the first barrel body 110 and connected to the load-bearing plate 150. After the lifting device 160 is working, it can drive the load-bearing plate 150 to reciprocate along the height direction of the first barrel body 110.

[0044] Specifically, in practical applications, the lifting device 160 can be started first, and the lifting device 160 drives the bearing plate 150 to move to the bottom of the first barrel 110, and then the on-load voltage regulator is disassembled from the transformer, and the disassembled on-load voltage regulator is loaded on the bearing plate 150, and then the lifting device 160 is controlled again, so that the lifting device 160 drives the bearing plate 150 to move to the top of the first barrel 110, so that the on-load voltage regulator can also follow the bearing plate 150 to move to the top of the first barrel 110, and in the process of moving, the on-load voltage regulator gradually enters the first accommodating chamber 111. After the on-load voltage regulator is completely entered into the first accommodating chamber 111, the first accommodating chamber 111 can be closed, and then the first barrel 110 and the on-load voltage regulator are hoisted and transferred as a whole, so that the on-load voltage regulator is not easily exposed to the external environment during the hoisting and transfer process, thereby reducing the risk of the on-load voltage regulator being easily contaminated by foreign objects during the transfer process.

[0045] In addition, before maintenance, the first barrel body 110 and the on-load voltage-regulating switch can be transferred to a sealed indoor environment, and then the on-load voltage-regulating switch can be removed from the bottom of the load-bearing plate 150, and then the on-load voltage-regulating switch can be assembled on the top of the load-bearing plate 150. The staff can then perform maintenance on the on-load voltage-regulating switch. During the maintenance process, the lifting device 160 can be controlled to adjust the position of the load-bearing plate 150 as needed, thereby adjusting the height position of the on-load voltage-regulating switch, so that during the maintenance process, the staff can maintain a good standing posture for a long time without having to bend over frequently for maintenance, thereby reducing the labor intensity of the staff and improving the maintenance efficiency.

[0046] The maintenance device 100 provided in the present application includes a first barrel body 110, a load-bearing plate 150 and a lifting device 160. The first barrel body 110 is provided with a first accommodating chamber 111, and the first accommodating chamber 111 can be used to accommodate an on-load voltage-regulating switch. The load-bearing plate 150 can slide in the first accommodating chamber 111 along the height direction of the first barrel body 110. The lifting device 160 is arranged on the first barrel body 110. When the lifting device 160 starts the shaft, the lifting device 160 can drive the load-bearing plate 150 to reciprocate along the height direction of the first barrel body 110. In this way, when the on-load voltage-regulating switch is loaded on the load-bearing plate 150, the lifting device 160 can be driven to move back and forth along the height direction of the first barrel body 110. On the plate 150, start the lifting device 160 to drive the load-bearing plate 150 to move toward the top of the first barrel body 110, and the on-load voltage-regulating switch also moves to the top of the first barrel body 110. During the movement, the on-load voltage-regulating switch gradually enters the first accommodating cavity 111 until it is completely entered into the first accommodating cavity 111, and then the first barrel body 110 and the on-load voltage-regulating switch are hoisted and transferred as a whole. In this way, the on-load voltage-regulating switch is not easily exposed to the external environment during the hoisting and transfer process, thereby reducing the risk of the on-load voltage-regulating switch being easily contaminated by foreign objects during the transfer process.

[0047] like Figure 2 As shown, the side wall of the first barrel body 110 is provided with a mounting hole, and the mounting hole is connected to the first accommodating chamber 111; correspondingly, the lifting includes a mounting frame 161 and a lifting slider 162, the mounting frame 161 is provided on the side wall of the first barrel body 110 along the edge of the mounting hole, and the lifting slider 162 is slidably connected to the mounting frame 161, and a part of the lifting slider 162 passes through the mounting hole and is connected to the load-bearing plate 150. In this way, in the process of the lifting slider 162 sliding back and forth along the height direction of the first barrel body 110 in the mounting frame 161, the load-bearing plate 150 can be driven to slide back and forth along the height direction of the first barrel body 110, thereby driving the on-load voltage regulating switch to enter or extend from the first accommodating chamber 111.

[0048] In one embodiment, the mounting frame 161 and the first barrel body 110 may be adhered to the side wall of the first barrel body 110 , or the mounting frame 161 may be connected to the side wall of the first barrel body 110 by fasteners such as bolts and screws.

[0049] like Figure 2 As shown, the lifting slider 162 is provided with a screw hole; correspondingly, the lifting device 160 may also include a screw rod 163 and a driving source (not shown in the figure), the screw rod 163 is rotatably connected to the installation frame 161, the screw rod 163 is matched with the screw hole, and the driving source is connected to the screw rod 163. In this way, after the driving source is started, the driving source can drive the screw rod 163 to rotate in the installation frame 161. Since the length direction of the screw rod 163 is the same as the height direction of the first barrel body 110, the lifting slider 162 can also reciprocate along the height defense line of the first barrel body 110 during the rotation of the screw rod 163.

[0050] In one embodiment, the driving source may include a motor, an internal combustion engine, a cylinder, etc.

[0051] In one embodiment, slide grooves can be set on both sides of the installation frame 161, and the slide grooves extend along the length direction of the first barrel body 110, and then the lifting slider 162 is slidably matched with the slide grooves on both sides. In this way, the lifting slider 162 can drive the load-bearing plate 150 to move along the height direction of the first barrel body 110 during the movement of the slide groove, thereby driving the on-load voltage regulating switch to enter or extend out of the first accommodating cavity 111.

[0052] like Figure 2 As shown, the maintenance device 100 may further include a rain cover 170, which is foldably connected to one end of the first barrel 110. Specifically, before loading the on-load voltage-regulating switch, the rain cover 170 may be unfolded first, so that the rain cover 170 covers the on-load voltage-regulating switch below, and then the lifting device 160 is controlled to move the bearing plate 150 to the bottom of the first barrel 110, and then the on-load voltage-regulating switch is loaded. In this way, even on rainy days, since the rain cover 170 can cover the on-load voltage-regulating switch, rainwater can be prevented from falling on the on-load voltage-regulating switch, which plays a good protective role for the on-load voltage-regulating switch.

[0053] In addition, after the on-load voltage-regulating switch completely enters the first accommodating chamber 111, the rain cover 170 can be folded to close the opening below the first barrel body 110. This can seal the first barrel body 110, thereby reducing the risk of external foreign matter entering the first accommodating chamber 111 from the bottom of the first barrel body 110 and contaminating the on-load voltage-regulating switch.

[0054] like Figure 2 As shown, the first barrel 110 is further provided with a first inspection port 112 and a second inspection port 113, and the first inspection port 112 and the second inspection port 113 are both connected to the first accommodating chamber 111. In this way, under special circumstances, the maintenance tool can be extended into the first accommodating chamber 111 through the first inspection port 112 and / or the second inspection port 113 to perform maintenance on the on-load voltage regulator in the first accommodating chamber 111.

[0055] It should be understood that, compared with the method of directly moving the on-load voltage-regulating switch out of the first accommodating chamber 111 and then performing maintenance, maintaining the on-load voltage-regulating switch through the first inspection port 112 and / or the second inspection port 113 can effectively reduce the risk of the on-load voltage-regulating switch being contaminated by other foreign objects due to exposure to the external environment.

[0056] It should be understood that the number of the first inspection opening 112 and the second inspection opening 113 can be set according to actual conditions, and the present application does not specifically limit the number of the first inspection opening 112 and the second inspection opening 113.

[0057] like Figure 2 As shown, the maintenance device 100 may further include a first sealing sleeve 180 and a second sealing sleeve 190. The first sealing sleeve 180 is sleeved on the first maintenance port 112 to seal the first maintenance port 112, and the second sealing sleeve 190 is sleeved on the second maintenance port 113 to seal the second maintenance port 113. Specifically, during the transfer of the first barrel 110 and the on-load voltage regulating switch, the first maintenance port 112 may be sealed with the first sealing sleeve 180, and the second maintenance port 113 may be sealed with the second sealing sleeve 190, so that the risk of the on-load voltage regulating switch being contaminated by other foreign objects during the transfer process can be reduced.

[0058] Figure 3 This is a schematic diagram of the structure of a load-bearing plate provided by an exemplary embodiment of the present application. Figure 3 As shown, the load-bearing plate 150 may include a plate body 151 and a hanging bracket 152. The plate body 151 is disposed in the first accommodating cavity 111, and the plate body 151 is connected to the lifting device 160. The hanging bracket 152 is disposed on the plate body 151. The hanging bracket 152 can be used to connect the on-load voltage-regulating switch. The hanging bracket 152 can facilitate the loading of the on-load voltage-regulating switch and improve the loading efficiency.

[0059] In one embodiment, the first accommodating cavity 111 is a cylindrical cavity, and the disk body 151 is a disk structure, so that the disk body 151 can be adapted to the first accommodating cavity 111, so that the disk body 151 is not prone to collision or jamming during the sliding process in the first accommodating cavity 111, thereby effectively ensuring the smoothness of the sliding process.

[0060] like Figure 3 As shown, the disk body 151 may include a connecting ring 1511 and a reinforcing rib 1512. The connecting ring 1511 is slidably matched with the inner wall of the first barrel body 110. The reinforcing rib 1512 is arranged along the radial direction of the connecting ring 1511, and both ends of the reinforcing rib 1512 are connected to the connecting ring 1511. The reinforcing rib 1512 can increase the overall strength of the connecting ring 1511. The hoisting bracket 152 is arranged on the reinforcing rib 1512, so that the hoisting bracket 152 can hoist a heavier on-load voltage regulating switch, so that the reinforcing rib 1512 is not easy to break during the hoisting process, thereby improving the safety of the hoisting process.

[0061] Figure 4 This is a schematic diagram of the structure of a sealing cover provided by an exemplary embodiment of the present application. Figure 4As shown, the sealing cover 200 is detachably connected to one end of the first barrel body 110. Specifically, after the on-load voltage regulating switch is completely inserted into the first accommodating chamber 111, the sealing cover 200 can be set on one end of the first barrel body 110, so that the sealing cover 200 can close one end of the first accommodating chamber 111, thereby reducing the risk of foreign matter entering the first accommodating chamber 111.

[0062] In one embodiment, the end of the first barrel body 110 covered by the sealing cover 200 and the end of the first barrel body 110 connected to the rain cover 170 are respectively opposite to the two ends of the first barrel body 110. Specifically, after the on-load voltage-regulating switch is completely entered into the first accommodating cavity 111, the sealing cover 200 can be covered on one end of the first barrel body 110, and then the rain cover 170 can be folded and tied tightly to seal the other end of the first barrel body 110. This can improve the sealing performance of the first barrel body 110 and further reduce the risk of the on-load voltage-regulating switch being contaminated by external foreign matter.

[0063] like Figure 4 As shown, the sealing cover 200 is provided with a hook 201, and the hook 201 is provided with a hanging hole 202. Specifically, during the transfer of the first barrel 110, the hanger can be connected to the hook 201 through the hanging hole 202, and then the first barrel 110 is hoisted, so as to stably transfer the first barrel 110.

[0064] Figure 5 This is a schematic diagram of the structure of the second barrel provided by an exemplary embodiment of the present application. Figure 5 and Figure 1 As shown, the second barrel body 120 is provided with a second accommodating chamber 121. Specifically, when the second barrel body 120 is connected to the first barrel body 110, the lifting device 160 is controlled to move the load-bearing plate 150 downward, thereby driving the on-load voltage-regulating switch to move downward. The on-load voltage-regulating switch can enter the second accommodating chamber 121 of the second barrel body 120 to facilitate subsequent cleaning of the on-load voltage-regulating switch.

[0065] like Figure 5 As shown, the maintenance device 100 may further include a heating device 130, which is disposed on the second barrel 120 and can heat the area in the second accommodating chamber 121. Specifically, before the on-load voltage regulating switch enters the second accommodating chamber 121, the heating device 130 may be started to heat the area in the second accommodating chamber 121, so that the air in the second accommodating chamber 121 remains dry, thereby reducing the risk of moisture when the on-load voltage regulating switch enters the second accommodating chamber 121.

[0066] like Figure 5As shown, the maintenance device 100 may further include an oil spraying device 140, which is disposed on the second barrel 120 and can spray oil into the second accommodating chamber 121. Specifically, after the on-load voltage regulating switch enters the second accommodating chamber 121, the oil spraying device 140 is started, and the oil spraying device 140 can spray oil on the on-load voltage regulating switch to clean the on-load voltage regulating switch, remove foreign matter on the surface of the on-load voltage regulating switch, and improve the performance of the on-load voltage regulating switch.

[0067] like Figure 5 As shown, the oil spray device 140 may include a spray flange 141, an oil pipe (not shown in the figure) and a heating plate 142. The spray flange 141 is arranged on the second barrel 120, and the two ends of the oil pipe are connected to the spray flange 141 and the oil tank respectively. The heating plate 142 is arranged on the second barrel 120. Specifically, after the oil spray device 140 is turned on, the oil in the oil tank can reach the spray flange 141 through the oil pipe, and then the spray flange 141 sprays the oil toward the on-load voltage regulating switch in the second accommodating chamber 121. During the spraying process, the heating plate 142 can heat the oil in the oil pipe, so that the oil sprayed from the spray flange 141 is hot oil. In this way, the hot oil can also dry the surface of the on-load voltage regulating switch during the process of cleaning the on-load voltage regulating switch, thereby reducing the risk of the on-load voltage regulating switch being damp.

[0068] like Figure 5 As shown, the second barrel 120 is provided with an interface 123, and the interface 123 can be used to connect to a vacuum pump, so that the vacuum pump can perform a vacuum operation on the second accommodating chamber 121. Specifically, after the heating device 130 heats the air in the second accommodating chamber 121, the vacuum pump can be started to perform a vacuum operation on the second accommodating chamber 121, so that the contaminants in the second accommodating chamber 121 can be removed, reducing the risk of the on-load adjustment switch that has been cleaned subsequently being contaminated by foreign matter again in the second accommodating chamber 121.

[0069] like Figure 5 As shown, the second barrel 120 is also provided with an oil drain port 122, which is connected to the second accommodating chamber 121. Specifically, the oil sprayed on the on-load voltage regulator will gradually flow to the bottom of the second barrel 120, and then can be discharged from the oil drain port 122 to avoid oil accumulation in the second barrel 120.

[0070] In one embodiment, the overall inspection and cleaning process of the on-load voltage-regulating switch may include: first, covering the sealing cover 200 at one end of the first barrel body 110, then unfolding the rain cover 170 connected to the other end of the first barrel body 110, controlling the lifting device 160, lowering the load-bearing plate 150 to the bottom of the first barrel body 110, and then covering the rain cover 170 above the on-load voltage-regulating switch, removing the on-load voltage-regulating switch from the transformer, and loading the on-load voltage-regulating switch on the load-bearing plate 150, and then controlling the lifting device 160 to raise the position of the load-bearing plate 150 to the top of the first barrel body 110, thereby driving the on-load voltage-regulating switch to enter the first accommodating chamber 111, and after the on-load voltage-regulating switch completely enters the first accommodating chamber 111, tighten the rain cover 170 to close the other end of the first accommodating chamber 111. Then, the first barrel 110 and the on-load voltage regulating switch are transferred as a whole. After the first barrel 110 and the on-load voltage regulating switch are transferred to a closed room, the waterproof cover is unfolded, the on-load voltage regulating switch is removed from the bearing plate 150, and taken out from the bottom of the first barrel 110, and then the on-load voltage regulating switch is loaded on the top of the bearing plate 150, and then the staff can inspect the on-load voltage regulating switch. After the inspection is completed, the on-load voltage regulating switch is removed, and then the on-load voltage regulating switch is loaded on the bottom of the bearing plate 150, and the bearing plate 150 is controlled to move the bearing plate to the top of the first barrel 110, so that the on-load voltage regulating switch enters the first accommodating chamber 111. Then, the sealing cover 200 is set on the top of the first barrel 110, and the first barrel 110 is connected to the top of the second barrel 120, so that the first accommodating chamber 111 is connected with the second accommodating chamber 121. Then, the heating device 130 is started to heat the area in the second accommodating chamber 121. After the heating is completed, the vacuum pump is turned on to extract the vacuum from the second accommodating chamber 121. After a period of time, the oil spraying device 140 is controlled to spray hot oil toward the on-load voltage regulating switch. While spraying the hot oil, the lifting device 160 can be controlled to make the bearing plate 150 drive the on-load voltage regulating switch to move up and down, so that different parts of the on-load voltage regulating switch can be cleaned. It should be noted that in actual applications, the heating, vacuuming and spraying operations can be repeated multiple times until the on-load voltage regulating switch is cleaned, and then the relevant devices are stopped. After the on-load voltage-regulating switch is cleaned, the lifting device 160 can be controlled so that the load-bearing plate 150 drives the on-load voltage-regulating switch upward. After the on-load voltage-regulating switch enters the first accommodating chamber 111, the rain cover 170 can be folded and tied tightly to close the first accommodating chamber 111. Then the first barrel 110 and the on-load voltage-regulating switch can be transferred to the installation site at the same time. After the on-load voltage-regulating switch is removed from the load-bearing plate 150, the on-load voltage-regulating switch can be installed on the transformer.

[0071] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A maintenance device, characterized in that: include: The first barrel body is provided with a first accommodating cavity; the side wall of the first barrel body is provided with a mounting hole communicating with the first accommodating cavity; A load-bearing plate is slidably disposed in the first accommodating cavity, and the load-bearing plate is configured to be connected to an on-load voltage regulating switch; A lifting device is provided on the first barrel body, and the lifting device is connected to the load-bearing plate, and the lifting device is configured to drive the load-bearing plate to slide in the first accommodating cavity along the height direction of the first barrel body; the lifting device comprises a mounting frame and a lifting slider, wherein the mounting frame is provided on the side wall of the first barrel body along the edge of the mounting hole; the lifting slider is slidably connected to the mounting frame, and a portion of the lifting slider passes through the mounting hole and is connected to the load-bearing plate, and the lifting slider is configured to drive the load-bearing plate to slide along the height direction of the first barrel body; A rain cover, the rain cover is foldably connected to the bottom end of the first barrel, the rain cover is folded so that the opening of the bottom end of the first barrel is closed, and the rain cover is opened so that the opening of the bottom end of the first barrel is opened; A sealing cover is detachably connected to the top of the first barrel body.

2. The maintenance device according to claim 1, characterized in that: The lifting slide block is provided with a screw hole; The lifting device also includes: A screw rod is rotatably connected to the installation frame, and the screw rod is matched with the screw hole; A driving source is connected to the screw rod, and the driving source is configured to drive the screw rod to rotate.

3. The maintenance device according to any one of claims 1 to 2, characterized in that: The load-bearing plate comprises: A tray body is disposed in the first accommodating cavity, and the tray body is connected to the lifting device; A hanging bracket is arranged on the disk body, and the hanging bracket is structured to be connected to the on-load voltage regulating switch.

4. The maintenance device according to claim 3, characterized in that: The disk body comprises: A connecting ring, slidingly engaged with the inner wall of the first barrel; The reinforcing rib is arranged along the radial direction of the connecting ring, and both ends of the reinforcing rib are connected to the connecting ring; wherein the hanging bracket is arranged on the reinforcing rib.

5. The maintenance device according to any one of claims 1 to 2, characterized in that: The first barrel body is further provided with a first inspection port and a second inspection port, and the first inspection port and the second inspection port are both connected to the first accommodating chamber.

6. The maintenance device according to claim 5, characterized in that: The maintenance device also includes: A first sealing sleeve, sleeved on the first inspection opening to seal the first inspection opening; The second sealing sleeve is sleeved on the second inspection opening to seal the second inspection opening.

7. The maintenance device according to claim 1, characterized in that: The sealing cover is provided with a hanging hook, and the hanging hook is provided with a hanging hole.

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