High-low voltage switch cabinet convenient to overhaul

Abstract

The invention relates to the technical field of power distribution equipment, and discloses a high-low voltage switch cabinet convenient to overhaul, which comprises a cabinet body, a rear box body is fixedly mounted on the back surface of the cabinet body, side plates are fixedly mounted on the back surface of an inner cavity of the cabinet body and positioned on two sides of the rear box body, and a power receiving seat is fixedly mounted on one side of each side plate. A mounting plate is fixedly mounted on the front face of the vertical plate, a sleeve is fixedly mounted on the right side of the inner wall of the rear box body, and a driving shaft is movably sleeved with the sleeve. A driving shaft is driven to rotate in a wireless control mode, a telescopic rod is driven to move downwards, the telescopic rod can drive the whole mounting device to move downwards in the downward moving process, so that a top groove is separated from a power receiving base, meanwhile, a bottom groove is matched with a rectangular connecting rod located below the bottom groove, and at the moment, a maintainer lifts a lifting rod by controlling a driving machine; therefore, the installation device can be lifted together with the lifting rod, so that the power distribution switch equipment to be maintained and the installation device can be closer to the front surface of the cabinet body.

Description

Technical Field

[0001] The present application relates to the technical field of power distribution equipment, and in particular to a high and low voltage switch cabinet that is easy to maintain. Background Art

[0002] The high and low voltage switch cabinet that is easy to maintain is a grassroots power distribution equipment. Various high and low voltage distribution switches are installed in the distribution cabinet. It is an electronic device that can process signal transmission and is mainly used for transmitter power supply and signal isolation transmission in petrochemical, electric power, metallurgy and other industries. The traditional single distribution cabinet has a relatively simple structure, mainly consisting of a cabinet body, mounting bracket, winding rack and other structures. A large number of high and low voltage switches are installed on the mounting bracket, which also leads to a smaller interval between the switches. When maintenance personnel need to maintain a single high and low voltage distribution switch, they need to use handheld disassembly tools to reach into the interior of the distribution cabinet. It is difficult to use operating tools to disassemble the high and low voltage distribution switches in a narrow space, which increases the difficulty of operation and makes disassembly and maintenance difficult. In this regard, this application document proposes a high and low voltage switch cabinet that is easy to maintain, aiming to solve the above-mentioned problems. Summary of the Invention

[0003] This application proposes a high and low voltage switch cabinet that is easy to maintain, which has the advantages of easy disassembly and does not affect other high and low voltage distribution switches, and is used to solve the problem of difficult disassembly and maintenance of high and low voltage distribution switches in traditional distribution cabinets.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a high and low voltage switch cabinet that is easy to maintain, including a cabinet body, a rear box body is fixedly installed on the back of the cabinet body, the inner cavity of the cabinet body and the rear box body are connected, a vertical plate is provided on the front of the rear box body near the middle position, side panels are fixedly installed on the back of the cabinet inner cavity at positions on both sides of the rear box body, a power receiving seat is fixedly installed on one side of the side panel, a mounting plate is fixedly installed on the front of the vertical plate, a sleeve is fixedly installed on the right side of the inner wall of the rear box body, the internal movable sleeve of the sleeve is provided with a driving shaft, circular sleeve holes are opened on both sides of the outer surface of the cabinet body, and the internal movable sleeve of the circular sleeve hole is provided with a lifting device.

[0005] Furthermore, the side panels, mounting plates and sleeves are distributed in a linear array.

[0006] Furthermore, a turntable is fixedly mounted on the outer surface of the driving shaft, a spring rod is fixedly mounted on the outer surface of the turntable, and a telescopic rod is fixedly mounted on one end of the output shaft of the spring rod. The driving shaft is driven to rotate by wireless control, and the telescopic rod is driven downward by the transmission of the spring rod.

[0007] Specifically, a mounting device is sleeved on the outer surface of the telescopic rod, and the mounting device is driven to move downward as a whole when the telescopic rod moves downward.

[0008] Furthermore, the lifting device includes a lifting rod, and there are two lifting rods. A rectangular connecting rod is fixedly installed between the lifting rods, and a rocker arm is movably provided at the bottom position of the outer side of the lifting rod near the top. A connecting shaft is fixedly installed at the outer side of the rocker arm near the top, and the connecting shaft cooperates with the circular sleeve holes opened on both sides of the outer surface of the cabinet body. One end of the connecting shaft is connected to a driving machine, and the driving machine is fixedly connected to the outer surface of the rear box body. The driving machine is controlled to drive the rocker arm to rotate through the transmission effect of the connecting shaft, thereby lifting the lifting rod.

[0009] Furthermore, the mounting device includes a horizontal plate, a power socket is fixedly mounted on the front of the horizontal plate near the bottom, a power connection post is provided on the top of the power socket, mounting brackets are fixedly mounted on the front of the horizontal plate at positions on both sides of the power socket, a power supply device is fixedly mounted on the back of the horizontal plate near the middle, and connecting sockets are fixedly mounted on the back of the horizontal plate at positions on both sides of the power supply device; Specifically, a top groove is formed on the top of the connecting seat, a bottom groove is formed on the bottom of the connecting seat, and a matching shaft sleeve is fixedly installed on the back of the connecting seat; Specifically, the cross section of the bottom groove is rectangular, and the matching shaft sleeve is movably sleeved with the telescopic rod. When the connecting seat moves downward, the bottom groove cooperates with the rectangular connecting rod located below it. Specifically, the top groove cooperates with the power receiving seat in the initial state.

[0010] Furthermore, the power supply device includes a base, a power supply seat is fixedly installed on the top of the base, a power supply hole is opened on the top of the power supply seat, and a magnetic seat is fixedly provided on the bottom of the power supply hole.

[0011] Specifically, when the telescopic rod drives the installation device to start moving downward, the top groove will first separate from the power receiving seat, and after separation, the power supply hole and the power receiving pole are still in a matched state.

[0012] Furthermore, a power receiving pole is fixedly mounted on the bottom of the power receiving seat, a power receiving hole is opened at the bottom of the power receiving pole, a reset spring is provided at the bottom of the power receiving hole, one end of the reset spring is connected to a blocking rod, and the blocking rod is entirely located inside the power receiving hole; Specifically, the material used for the blocking rod can be attracted by magnetic materials; Specifically, insulation treatment is adopted between the blocking rod and the inner wall of the power receiving hole.

[0013] Furthermore, the power receiving pole is matched with the power supply hole in the initial state, and the magnetic seat is in a power-on state and generates magnetism.

[0014] This application has the following beneficial effects.

[0015] The device can lift all the installation devices by starting all the active shafts, so that it is convenient for maintenance personnel to install the distribution switches one by one on the front of the installation bracket. At the same time, a single or multiple active shafts can be started to lift the installation devices corresponding to the started active shafts, so that maintenance personnel can perform targeted maintenance on the distribution switches. During the maintenance process, the normal operation of the distribution switches on other installation devices will not be affected. Moreover, when the installation device is lifted, it can be ensured that the distribution switch installed on the front of the installation device can still operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments disclosed herein and, together with the description, serve to explain the principles disclosed herein.

[0017] The present disclosure can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which: Figure 1 It is a structural diagram of the present invention; Figure 2 It is a cross-sectional view of the structure of the present invention; Figure 3 This is the internal structure diagram of the present invention; Figure 4 This is the main structural diagram of the present invention; Figure 5 It is a cross-sectional view of the main structure of the present invention; Figure 6 This is a diagram of the structural lifting device of the present invention; Figure 7 This is a diagram of the structural rotation mechanism of the present invention; Figure 8 This is a front view of the structural installation device of the present invention; Figure 9 This is a rear view of the structural installation device of the present invention; Figure 10 This is a schematic diagram of the power supply base of the present invention; Figure 11 This is a diagram of the power supply device of the present invention; Figure 12 This is a cross-sectional view of the power supply device of the present invention; Figure 13 This is a schematic diagram of the power receiving seat structure of the present invention; Figure 14 It is a schematic diagram of the power receiving seat structure of the present invention.

[0018] In the figure; 1. cabinet; 2. rear box; 3. vertical plate; 4. side plate; 5. power receiving seat; 6. mounting plate; 7. sleeve; 8. driving shaft; 9. lifting device; 91. lifting rod; 92. rectangular connecting rod; 93. rocker arm; 94. connecting shaft; 95. driving machine; 10. turntable; 11. spring rod; 12. telescopic rod; 13. mounting device; 131. horizontal plate; 132. power receiving seat; 133. power receiving column; 134. mounting bracket; 135. power supply device; 1351. base; 1352. power supply seat; 1353. power supply hole; 1354. magnetic seat; 136. connecting seat; 137. top groove; 138. bottom groove; 139. matching sleeve; 14. power receiving pole; 15. power receiving hole; 16. reset spring; 17. blocking rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] A high and low voltage switchgear that is easy to maintain, please refer to Figure 1-Figure 5 , including a cabinet 1, a rear box 2 is fixedly installed on the back of the cabinet 1, the inner cavities of the cabinet 1 and the rear box 2 are connected, a vertical plate 3 is provided on the front near the middle position of the rear box 2, side panels 4 are fixedly installed on the back of the inner cavity of the cabinet 1 at positions on both sides of the rear box 2, a power receiving seat 5 is fixedly installed on one side of the side panel 4, a mounting plate 6 is fixedly installed on the front of the vertical plate 3, a sleeve 7 is fixedly installed on the right side of the inner wall of the rear box 2, and a driving shaft 8 is provided in the internal movable sleeve of the sleeve 7. Circular sleeve holes are opened on both sides of the outer surface of the cabinet 1, and a lifting device 9 is provided in the internal movable sleeve of the circular sleeve hole.

[0021] See also Figure 4 , the side plates 4, the mounting plates 6 and the sleeves 7 are all distributed in a linear array.

[0022] See also Figure 2-Figure 5 and Figure 7 The outer surface of the driving shaft 8 is fixedly sleeved with a turntable 10, the outer surface of the turntable 10 is fixedly installed with a spring rod 11, one end of the output shaft of the spring rod 11 is fixedly installed with a telescopic rod 12, and the outer surface of the telescopic rod 12 is sleeved with a mounting device 13.

[0023] When the modified machine is installed for the first time, the maintenance personnel can control all the driving shafts 8 to rotate, so that all the installation devices 13 are moved down and are in a power-off state. At this time, the lifting device 9 is lifted up and drives all the installation devices 13 to be in a lifted state, which makes it convenient for the operator to install the power distribution switch on the front of the installation device 13, reduces the difficulty of operation, and improves practicality.

[0024] See also Figure 1 and Figure 6 The lifting device 9 includes a lifting rod 91, and there are two lifting rods 91. A rectangular connecting rod 92 is fixedly installed between the lifting rods 91. A rocker arm 93 is movably sleeved on the bottom position of the outer side of the lifting rod 91 near the top. A connecting shaft 94 is fixedly installed on the outer side of the rocker arm 93 near the top. The connecting shaft 94 cooperates with the circular sleeve holes opened on both sides of the outer surface of the cabinet 1. One end of the connecting shaft 94 is connected to a driving machine 95, and the driving machine 95 is fixedly connected to the outer surface of the rear box body 2.

[0025] See also Figures 8-10 The mounting device 13 includes a horizontal plate 131, a power socket 132 is fixedly mounted on the front of the horizontal plate 131 near the bottom, a power column 133 is provided on the top of the power socket 132, mounting brackets 134 are fixedly mounted on the front of the horizontal plate 131 at positions on both sides of the power socket 132, a power supply device 135 is fixedly mounted on the back of the horizontal plate 131 near the middle, and connecting sockets 136 are fixedly mounted on the back of the horizontal plate 131 at positions on both sides of the power supply device 135; See also Figures 8-10 The top of the connecting seat 136 is provided with a top groove 137, the bottom of the connecting seat 136 is provided with a bottom groove 138, and the back of the connecting seat 136 is fixedly installed with a matching shaft sleeve 139; See also Figure 7-10 The bottom groove 138 has a rectangular cross section and is movably mounted with the shaft sleeve 139 and the telescopic rod 12; See also Figure 4 and Figure 9 In the initial state, the top groove 137 cooperates with the power receiving seat 5.

[0026] When maintenance personnel need to disassemble and repair a single distribution switch, they can drive the active shaft 8 to rotate by wireless control according to the active shaft 8 corresponding to the mounting bracket 134 where the distribution switch is located, and drive the telescopic rod 12 to move downward through the transmission of the spring rod 11. Since the shaft sleeve 139 is movably sleeved with the telescopic rod 12, the installation device 13 will be driven to move downward as a whole during the downward movement of the telescopic rod 12, thereby disengaging the top groove 137 from the power receiving seat 5. At the same time, the bottom groove 138 cooperates with the rectangular connecting rod 92 located below itself. At this time, the maintenance personnel controls the driving machine 95 to drive the rocker arm 93 to rotate through the transmission effect of the connecting shaft 94, thereby lifting the lifting rod 91. Since the bottom groove 138 cooperates with the rocker arm 93 at this time, and the spring rod 11 can be stretched, the installation device 13 can be lifted together with the lifting rod 91, so that the distribution switch that needs maintenance can be closer to the front of the cabinet 1 with the installation device 13, which makes it possible for maintenance personnel to remove and maintain the distribution switch without having to reach into the interior of the cabinet 1, avoiding the problem of inconvenience caused by the narrow internal space. In addition, during the maintenance process, only the installation device 13 where the distribution switch that needs maintenance is located needs to be lifted, and the distribution switches installed in front of other installation devices 13 will not be affected and are in normal operating state, thereby ensuring the normal operation of electrical appliances to the greatest extent and improving the practicality of the device.

[0027] See also Figure 11-12 The power supply device 135 includes a base 1351 , a power supply seat 1352 is fixedly installed on the top of the base 1351 , a power supply hole 1353 is opened on the top of the power supply seat 1352 , and a magnetic seat 1354 is fixedly provided on the bottom of the power supply hole 1353 .

[0028] When the mounting device 13 is in the initial configuration, the power receiving pole 14 cooperates with the power supply hole 1353. At this time, the power distribution switch installed on the front of the mounting bracket 134 is in normal working condition. When the telescopic rod 12 drives the mounting device 13 to start moving downward, the top groove 137 will first separate from the power receiving seat 5. After separation, the power supply hole 1353 and the power receiving pole 14 are still in a cooperated state, which can keep the mounting device 13 in a vertical posture, avoiding the problem that the horizontal plate 131 becomes skewed after the top groove 137 is separated from the power receiving seat 5, resulting in the bottom groove 138 and the rectangular connecting rod 92 being unable to cooperate normally during the process of the mounting device 13 continuing to move downward.

[0029] See also Figure 4-Figure 5 and Figure 13-14 , a receiving pole 14 is fixedly installed at the bottom of the receiving seat 5, a receiving hole 15 is opened at the bottom of the receiving pole 14, a return spring 16 is provided at the bottom of the receiving hole 15, one end of the return spring 16 is connected to a blocking rod 17, and the blocking rod 17 is located inside the receiving hole 15 as a whole; See also Figure 14, the material used by the blocking rod 17 can be attracted by magnetic materials; See also Figure 14 , insulation treatment is adopted between the blocking rod 17 and the inner wall of the power receiving hole 15.

[0030] See also Figures 9-14 In the initial state, the power receiving pole 14 cooperates with the power supply hole 1353. After the bottom groove 138 and the rectangular connecting rod 92 are initially matched, the power supply hole 1353 is separated from the power receiving pole 14. At this time, the distribution switch installed on the front of the mounting bracket 134 is powered off, ensuring that after the mounting device 13 is lifted by the lifting device 9, the distribution switches installed on the front are all in the power-off state, ensuring the safety of maintenance personnel when disassembling and assembling the distribution switches, and improving the reliability of the device.

[0031] See also Figure 11-12 , the magnetic seat 1354 is in a powered state and generates magnetism.

[0032] When the installation device 13 moves down to the extreme position, if the distribution switch installed on the front of the installation bracket 134 cannot be installed normally and the power cannot be cut off normally, the magnetic seat 1354 is still in the energized state and generates a magnetic attraction force. The attraction force acts on the blocking rod 17 to move down and extend from the inside of the power receiving hole 15 and extend into the inside of the power supply hole 1353. At this time, when the lifting device 9 drives the installation device 13 to lift, the power supply hole 1353 will come into contact with the blocking rod 17 and cause the lifting action of the lifting device 9 to be blocked, thereby preventing the distribution switch on the front of the installation bracket 134 from being lifted while it is still energized, causing maintenance personnel to directly contact the energized distribution switch, thereby improving the safety performance of the device.

[0033] When the mounting device 13 is in the initial state, the top groove 137 cooperates with and locks the power receiving seat 5, and the telescopic rod 12 is movably sleeved with the matching shaft sleeve 139. At the same time, the power supply hole 1353 cooperates with the power receiving pole 14. Through the three-point limit method, the mounting device 13 is firmly fixed to ensure that the distribution switch installed on the front of the mounting bracket 134 is in a stable operating state.

[0034] When a fault occurs in the power supply device 135 or the power pole 133, causing the distribution switch to work abnormally, the lifting device 9 can be lifted to lift the faulty installation device 13, and then the telescopic rod 12 is controlled to retract, thereby releasing the movable sleeve of the telescopic rod 12 and the matching shaft sleeve 139. At this time, the installation device 13 and the lifting device 9 are only fixed through the cooperation between the bottom groove 138 and the rectangular connecting rod 92. At this time, the maintenance personnel only need to lift the installation device 13 upward to release the cooperation between the bottom groove 138 and the rectangular connecting rod 92, and then remove the installation device 13 as a whole and replace it with a new installation device 13, thereby quickly completing the disassembly and replacement of the installation device 13, thereby improving the practicality of the device.

[0035] The method of use of the present invention is as follows: During use, when maintenance personnel need to inspect and repair a single high and low voltage distribution switch, they can drive the active shaft 8 corresponding to the mounting bracket 134 where the distribution switch is located to rotate by wireless control, and drive the telescopic rod 12 downward through the transmission of the spring rod 11. Since the shaft sleeve 139 is movably sleeved with the telescopic rod 12, the installation device 13 is driven to move downward as a whole during the downward movement of the telescopic rod 12, thereby separating the top groove 137 from the power receiving seat 5. At the same time, the bottom groove 138 cooperates with the rectangular connecting rod 92 located below itself. At this time, The maintenance personnel controls the driving machine 95 to drive the rocker arm 93 to rotate through the transmission effect of the connecting shaft 94, thereby lifting the lifting rod 91. At this time, since the bottom groove 138 cooperates with the rocker arm 93, and the spring rod 11 can be stretched, the installation device 13 can be lifted together with the lifting rod 91, so that the distribution switch that needs maintenance can be closer to the front of the cabinet 1 with the installation device 13, which makes it unnecessary for the maintenance personnel to reach into the interior of the cabinet 1 to disassemble and maintain the distribution switch. When the installation device 13 is in the initial configuration, the power receiving pole 14 cooperates with the power supply hole 1353. When the power distribution switch installed on the front of the mounting bracket 134 is in normal working condition, when the telescopic rod 12 drives the mounting device 13 to start moving downward, the top groove 137 will first separate from the power receiving seat 5. After separation, the power supply hole 1353 and the power receiving pole 14 are still in a matched state, which can keep the mounting device 13 in a vertical posture. After the bottom groove 138 and the rectangular connecting rod 92 are initially matched, the power supply hole 1353 is separated from the power receiving pole 14. At this time, the power distribution switch installed on the front of the mounting bracket 134 is powered off, ensuring that after the mounting device 13 is lifted by the lifting device 9, the power distribution switches installed on the front are all in a powered-off state. , ensuring the safety of maintenance personnel when disassembling and assembling the distribution switch. When the installation device 13 moves down to the extreme position, if the distribution switch installed on the front of the bracket 134 cannot be installed normally and the power cannot be cut off normally, the magnetic seat 1354 is still in the energized state and generates a magnetic attraction force. The attraction force acts on the blocking rod 17 to move down and extend from the inside of the power receiving hole 15 and extend into the inside of the power supply hole 1353. At this time, when the lifting device 9 drives the installation device 13 to lift, the power supply hole 1353 will come into contact with the blocking rod 17 and cause the lifting effect of the lifting device 9 to be blocked.

[0036] When the modified machine is first installed, the maintenance personnel can control all the driving shafts 8 to rotate, so that all the installation devices 13 are moved down and are in a power-off state. At this time, the lifting device 9 is lifted up and drives all the installation devices 13 to be in a lifted state, which makes it convenient for the operator to install the distribution switch on the front of the mounting bracket 134, reducing the difficulty of operation.

[0037] When a fault occurs in the power supply device 135 or the power pole 133, causing the distribution switch to work abnormally, the lifting device 9 can be lifted to lift the faulty installation device 13, and then the telescopic rod 12 is controlled to retract, thereby releasing the movable sleeve of the telescopic rod 12 and the matching shaft sleeve 139. At this time, the installation device 13 and the lifting device 9 are only fixed through the cooperation between the bottom groove 138 and the rectangular connecting rod 92. At this time, the maintenance personnel only need to lift the installation device 13 upward to release the cooperation between the bottom groove 138 and the rectangular connecting rod 92, and then remove the installation device 13 as a whole and replace it with a new installation device 13, thereby quickly completing the disassembly and replacement of the installation device 13, thereby improving the practicality of the device.

Claims

1. A high and low voltage switchgear that is easy to maintain, characterized in that: The invention comprises a cabinet (1), a rear box (2) is fixedly mounted on the back of the cabinet (1), the inner cavities of the cabinet (1) and the rear box (2) are connected, a vertical plate (3) is provided on the front of the rear box (2) near the middle, side plates (4) are fixedly mounted on the back of the inner cavity of the cabinet (1) at positions on both sides of the rear box (2), a power receiving seat (5) is fixedly mounted on one side of the side plate (4), a mounting plate (6) is fixedly mounted on the front of the vertical plate (3), a sleeve (7) is fixedly mounted on the right side of the inner wall of the rear box (2), a driving shaft (8) is provided in the internal movable sleeve of the sleeve (7), circular sleeve holes are provided on both sides of the outer surface of the cabinet (1), and a lifting device (9) is provided in the internal movable sleeve of the circular sleeve hole.

2. The high and low voltage switchgear cabinet that is easy to maintain according to claim 1 is characterized in that: The side plates (4), mounting plates (6) and sleeves (7) are all distributed in a linear array.

3. The high and low voltage switch cabinet that is easy to maintain according to claim 1 is characterized in that: A rotating disk (10) is fixedly mounted on the outer surface of the driving shaft (8), a spring rod (11) is fixedly mounted on the outer surface of the rotating disk (10), a telescopic rod (12) is fixedly mounted on one end of the output shaft of the spring rod (11), and a mounting device (13) is mounted on the outer surface of the telescopic rod (12).

4. The high and low voltage switchgear cabinet that is easy to maintain according to claim 1 is characterized in that: The lifting device (9) includes a lifting rod (91), the number of the lifting rods (91) is two, a rectangular connecting rod (92) is fixedly installed at a position between the lifting rods (91), a rocker arm (93) is movably sleeved at a position near the top of the bottom of the outer side of the lifting rod (91), a connecting shaft (94) is fixedly installed at a position near the top of the outer side of the rocker arm (93), the connecting shaft (94) is matched with a circular sleeve hole opened on both sides of the outer surface of the cabinet (1), one end of the connecting shaft (94) is connected to a driving machine (95), and the driving machine (95) is fixedly connected to the outer surface of the rear box (2).

5. The high and low voltage switch cabinet that is easy to maintain according to claim 3 is characterized in that: The mounting device (13) comprises a horizontal plate (131), a power receiving seat (132) is fixedly mounted on the front of the horizontal plate (131) at a position near the bottom, a power receiving post (133) is provided on the top of the power receiving seat (132), mounting brackets (134) are fixedly mounted on the front of the horizontal plate (131) at positions on both sides of the power receiving seat (132), and a power distribution switch device is mounted on the front of the mounting bracket (134), a power supply device (135) is fixedly mounted on the back of the horizontal plate (131) at a position near the middle, and connecting seats (136) are fixedly mounted on the back of the horizontal plate (131) at positions on both sides of the power supply device (135); A top groove (137) is provided on the top of the connecting seat (136), a bottom groove (138) is provided on the bottom of the connecting seat (136), and a matching shaft sleeve (139) is fixedly installed on the back of the connecting seat (136); The bottom groove (138) has a rectangular cross-section, and the matching shaft sleeve (139) is movably sleeved with the telescopic rod (12); The top groove (137) cooperates with the power receiving seat (5) in the initial state.

6. The high and low voltage switch cabinet that is easy to maintain according to claim 5 is characterized in that: The power supply device (135) comprises a base (1351), a power supply seat (1352) is fixedly mounted on the top of the base (1351), a power supply hole (1353) is provided on the top of the power supply seat (1352), and a magnetic seat (1354) is fixedly provided on the bottom of the power supply hole (1353).

7. The high and low voltage switch cabinet that is easy to maintain according to claim 6 is characterized in that: A power receiving pole (14) is fixedly mounted on the bottom of the power receiving seat (5), a power receiving hole (15) is provided at the bottom of the power receiving pole (14), a reset spring (16) is provided at the bottom of the power receiving hole (15), one end of the reset spring (16) is connected to a blocking rod (17), and the blocking rod (17) is entirely located inside the power receiving hole (15); The material used for the blocking rod (17) can be attracted by magnetic materials; Insulation treatment is applied between the blocking rod (17) and the inner wall of the power receiving hole (15).

8. The high and low voltage switchgear cabinet that is easy to maintain according to claim 7 is characterized in that: In the initial state, the power receiving rod (14) cooperates with the power supply hole (1353), and the magnetic seat (1354) is in a powered state and generates magnetism.

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