Lightning arrester of switch cabinet

Abstract

The invention relates to the technical field of switch cabinet lightning protection, in particular to a switch cabinet lightning arrester. Comprising lightning arrester bodies, a fixing frame, a first connecting wire, partition plates, a grounding wire and the like, the lightning arrester bodies are installed in a cabinet body at intervals, the fixing frame is connected to the top face of a base, the first connecting wire is connected to the fixing frame at intervals, one end of the first connecting wire penetrates through the side face of the cabinet body and is connected with the lightning arrester bodies, and the partition plates are connected into the fixing frame at intervals. The grounding wires are installed on the inner bottom face of the fixing frame at intervals. Through the cooperation of the first connecting wire and the contact head, the lower end of the lightning arrester body can be connected with a grounding wire, and then the second connecting wire is connected with the upper end of the lightning arrester body, so that the state of the lightning arrester body can be directly detected outside the cabinet body, and power-off of power equipment in the cabinet body is not needed; and the lightning arrester body can be disassembled and assembled without manually opening the cabinet door, so that the operation is simple, and the lightning arrester body can be prevented from being damaged due to disassembly and assembly.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinet lightning protection, and in particular to a switch cabinet lightning protection device. Background Art

[0002] In modern power systems, 35kV high-voltage switchgear, as an important part of the power grid, undertakes the key task of power transmission and distribution. In order to ensure the safe operation of power facilities and prevent damage to equipment caused by lightning and operating overvoltage, metal oxide arresters (MOAs) are generally configured inside the switchgear to absorb transient overvoltage energy and protect power equipment from damage.

[0003] Normally, the down conductor of the arrester is connected to the upper end of the counter in the switch cabinet. Although this design is convenient for recording the number of times the arrester has been actuated, the cabinet door cannot be opened to check the status of the arrester during the operation of the equipment, because this would violate the safety operating procedures and increase the risk of electric shock. Therefore, the status detection of the arrester can only be carried out under power outage conditions, and the arrester needs to be removed from the circuit and a series of tests such as measuring leakage current and DC reference voltage need to be carried out. Although this detection method can more accurately evaluate the status of the arrester, the disassembly and assembly process is complicated and requires a lot of human resources. Frequent disassembly and assembly actions may cause damage to the mechanical structure of the arrester or reduce its electrical performance, thereby shortening its service life. In addition, power outage detection will also affect the continuous power supply of the power system, causing inconvenience to the normal power use of users. Summary of the invention

[0004] In view of this, the present invention provides a switch cabinet lightning protection device, which can overcome the shortcomings of the existing lightning arrester that when performing status detection, the switch cabinet needs to be shut down and the lightning arrester needs to be disassembled, the operation is complicated, and the lightning arrester may be damaged, while affecting the continuous power supply of the power system.

[0005] The technical solution is: a switch cabinet lightning protection device, including a lightning arrester body, a fixed frame, a first connecting wire, a partition, a grounding wire, a contact head, a mounting plate, a first guide rail, a lifting block, a magnet, a clamping assembly and a protective assembly. The lightning arrester body is installed at intervals inside the cabinet, the fixed frame is connected to the top surface of the base, the first connecting wire is connected to the fixed frame at intervals, and one end of the first connecting wire passes through the side of the cabinet and is connected to the lightning arrester body, the partition is connected to the inside of the fixed frame at intervals, the grounding wire is installed at intervals on the bottom surface of the fixed frame, and the grounding wire is located directly below the other end of the first connecting wire, the contact head is installed at the upper end of the grounding wire, the mounting plate is connected to the side of the fixed frame, the first guide rail is connected to the side of the mounting plate at intervals, the lifting block is slidably connected to the first guide rail, and the lifting block is fixedly connected to the first connecting wire, the magnet is slidably connected to the side of the mounting plate away from the first guide rail, and the magnet corresponds to the lifting block one by one, the clamping assembly is used to fix the end of the first connecting wire in the contact head, and the protective assembly is used to protect the mounting plate.

[0006] As a further preferred solution, the clamping assembly includes a sliding frame, a rubber block and a screw. The sliding frame is slidably connected to the mounting plate, the rubber blocks are connected to the sliding frame at intervals, and the rubber blocks correspond to the contact heads one by one. The screw is rotatably connected to the mounting plate, and the screw is threadedly connected to the sliding frame.

[0007] As a further preferred solution, the protection component includes a rotating frame and a lock, the rotating frame is rotatably connected to the fixed frame, and the rotating frame blocks the side of the mounting plate, and the lock is installed on the side of the rotating frame.

[0008] As a further preferred scheme, it also includes a fixed block, a second connecting wire, a connecting head and a lifting assembly. The fixed block is connected to the inner wall of the cabinet at intervals, the second connecting wire is connected to the fixed block, and one end of the second connecting wire passes through the side of the cabinet and the side of the fixed frame and is connected to the mounting plate, the connecting head is respectively connected to both ends of the second connecting wire, and the lifting assembly is used to drive the other end of the second connecting wire to lift and lower.

[0009] As a further preferred scheme, the lifting assembly includes a second guide rail, a lifting rod and a first electric push rod, the second guide rail is symmetrically connected to the inner wall of the cabinet, the lifting rod is slidably connected to the second guide rail, and the other end of the second connecting wire is fixedly connected to the lifting rod, the other end of the second connecting wire is located directly above the lightning arrester body, the first electric push rod is symmetrically connected to the inner wall of the cabinet, and the telescopic rod of the first electric push rod is connected to the lifting rod.

[0010] As a further preferred scheme, it also includes a U-shaped block, an air bag, an air pump, a shunt pipe and an air release valve. The U-shaped blocks are connected to the inner wall of the cabinet at intervals, and the U-shaped blocks correspond to the first connecting wires one by one. The air bag is connected to the U-shaped block, the air pump is connected to the side of the fixed frame, the shunt pipe is connected to the air outlet of the air pump, and the end of the shunt pipe is connected to the air bag, and the air release valve is installed on the shunt pipe.

[0011] As a further preferred scheme, it also includes a guide rod, a slider, a sponge block, a drive motor and a screw rod. The guide rod is symmetrically connected to the inner wall of the cabinet, the slider is slidably connected to the guide rod, the sponge block is connected to the side of the slider, the drive motor is symmetrically installed on the top surface of the base, the screw rod is connected to the output shaft of the drive motor, and the screw rod rotates through the side of the cabinet, and the slider is threadedly connected to the screw rod.

[0012] As a further preferred solution, it also includes cameras, which are installed at intervals on the inner wall of the cabinet and the side of the cabinet door, and the cameras are located on both sides of the lightning arrester body.

[0013] As a further preferred scheme, it also includes a temperature sensor, a fixing plate, a second electric push rod, a sealing frame and a sealing strip. The temperature sensor is installed on the inner wall of the cabinet, the fixing plate is connected to the inner wall of the cabinet, the second electric push rod is symmetrically installed on the inner wall of the cabinet, the sealing frame is connected to the telescopic rod of the second electric push rod, and the sealing strip is connected to the sealing frame.

[0014] The present invention has the following advantages: 1. The present invention can connect the lower end of the lightning arrester body to the grounding wire through the cooperation of the first connecting wire and the contact head, and then connect it to the upper end of the lightning arrester body through the second connecting wire. The status of the lightning arrester body can be detected directly outside the cabinet, without the need to cut off the power supply to the power equipment in the cabinet, and without manually opening the cabinet door to disassemble and assemble the lightning arrester body. The operation is simple and can also prevent the lightning arrester body from being damaged due to disassembly and assembly.

[0015] 2. The present invention can automatically clean the surface of the arrester body by controlling the sponge block to move back and forth. The cleaning condition of the arrester body can be clearly understood through the camera image. The appearance of the arrester body can also be monitored at all times, which is convenient for manual appearance inspection of the arrester body. When cracks appear on the surface of the arrester body, it can be replaced and repaired in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 The figure is a schematic diagram of the installation of the first connecting wire, the partition, the grounding wire and the contact head of the present invention.

[0018] Figure 3The figure is a schematic diagram of the specific structure of the first connecting wire, the partition, the grounding wire and the contact head of the present invention.

[0019] Figure 4 The figure is a schematic diagram of the installation of the mounting plate, the first guide rail, the lifting block, the magnet and the clamping assembly of the present invention.

[0020] Figure 5 It is a schematic diagram of the installation of the protective component of the present invention.

[0021] Figure 6 The figure is a schematic diagram of the installation of the fixing block, the second connecting wire, the connecting head and the lifting assembly of the present invention.

[0022] Figure 7 The figure is a schematic diagram of the installation of the U-shaped block, the air bag, the air pump, the shunt pipe and the air release valve of the present invention.

[0023] Figure 8 The figure is a schematic diagram of the installation of the guide rod, the sliding block, the sponge block, the driving motor and the lead screw of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the camera of the present invention installed on the cabinet door.

[0025] Fig.10 The figure is a schematic diagram of the installation of the temperature sensor, the fixing plate, the second electric push rod and the sealing frame of the present invention.

[0026] Wherein: 001-base, 002-cabinet, 003-cabinet door, 1-lightning arrester body, 2-fixed frame, 3-first connecting wire, 4-partition, 5-grounding wire, 6-contact head, 7-mounting plate, 8-first guide rail, 9-lifting block, 10-magnet, 11-sliding frame, 12-rubber block, 13-screw, 14-rotating frame, 15-lock, 16-fixed block, 17-second connecting wire, 18-connecting head, 19-second guide rail, 20-lifting rod, 21-first electric push rod, 22-U-shaped block, 23-air bag, 24-air pump, 25-shunt pipe, 26-air release valve, 27-guide rod, 28-slider, 29-sponge block, 30-drive motor, 31-screw, 32-camera, 33-temperature sensor, 34-fixed plate, 35-second electric push rod, 36-sealing frame, 37-sealing strip. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment: The existing switch cabinet is usually composed of a base 001, a cabinet body 002 and a cabinet door 003. The cabinet body 002 is installed in the middle of the top surface of the base 001, and the cabinet door 003 is rotatably connected to the side of the cabinet body 002. The present invention provides a switch cabinet lightning protection device, such as Figure 1-Figure 5 As shown, it includes a lightning arrester body 1, a fixing frame 2, a first connecting wire 3, a partition 4, a grounding wire 5, a contact head 6, a mounting plate 7, a first guide rail 8, a lifting block 9, a magnet 10, a clamping assembly and a protective assembly. Three lightning arrester bodies 1 are installed at intervals from left to right on the lower side of the interior of the cabinet 002. The lower end of the lightning arrester body 1 is connected to the upper end of the lightning arrester counter in the cabinet 003 through a cable. The left side of the top surface of the base 001 is connected to a fixing frame 2, and the right side of the fixing frame 2 is connected to three first connecting wires 3 at intervals. The first connecting wires 3 are connected to the upper end of the first connecting wires 3. The connecting wires 3 correspond to the arrester body 1 one by one, and the right ends of the three first connecting wires 3 all penetrate the left side of the cabinet 002 and are connected to the lower end cables of the arrester body 1 corresponding thereto. Two partitions 4 are connected at intervals inside the fixing frame 2. The two partitions 4 divide the internal space of the fixing frame 2 into three installation spaces, and the left ends of the three first connecting wires 3 are respectively located in the three installation spaces. Three grounding wires 5 are installed at intervals on the bottom surface of the fixing frame 2. The three grounding wires 5 are also respectively located in the three installation spaces, and the grounding wire 5 is located in the first connecting wire 5. Directly below the left end of the connecting wire 3, a contact head 6 is installed on the upper end of the grounding wire 5, and the upper end of the contact head 6 is funnel-shaped, which is convenient for the left end of the first connecting wire 3 to be inserted into the contact head 6. The left sides of the three contact heads 6 are all open-type designs. A mounting plate 7 is connected to the left side of the fixing frame 2. Three groups of first guide rails 8 are connected at intervals in the middle of the right side of the mounting plate 7. The number of each group of first guide rails 8 is two, and a lifting block 9 is slidably connected between the two first guide rails 8 in the same group. The number of lifting blocks 9 is three, and the lifting blocks 9 correspond to the first connecting wires 3 one by one, and the lifting blocks 9 are fixedly connected to the first connecting wires 3 corresponding to them. Three magnets 10 are slidably connected at intervals in the middle of the left side of the mounting plate 7, and the magnets 10 correspond to the lifting blocks 9 one by one. The friction between the magnets 10 and the mounting plate 7 is large, so that the magnets 10 will not slide up and down at will. The lifting block 9 is made of iron, so that the magnetic force of the magnet 10 can pass through the mounting plate 7 and absorb the lifting block 9. The clamping assembly is used to fix the end of the first connecting wire 3 in the contact head 6, and the protective assembly is used to protect the mounting plate 7.

[0029] like Figure 4 As shown, the clamping assembly includes a sliding frame 11, a rubber block 12 and a screw 13. The sliding frame 11 is slidably connected to the lower part of the mounting plate 7. Three rubber blocks 12 are connected to the right side of the sliding frame 11 at intervals, and the rubber blocks 12 correspond to the contact heads 6 one by one. The screw 13 is rotatably connected to the middle of the lower part of the mounting plate 7, and the screw 13 is threadedly connected to the middle part of the sliding frame 11.

[0030] like Figure 5As shown, the protection component includes a rotating frame 14 and a lock 15. The rotating frame 14 is rotatably connected to the left rear of the fixed frame 2. The rotating frame 14 blocks the side of the mounting plate 7, and the lock 15 is installed on the front side of the rotating frame 14.

[0031] like Figure 6 As shown, it also includes a fixed block 16, a second connecting wire 17, a connector 18 and a lifting assembly. Three groups of fixed blocks 16 are connected at intervals on the left side of the inner wall of the cabinet 002. The number of fixed blocks 16 in each group is two and they are symmetrically arranged up and down. A second connecting wire 17 is connected between two fixed blocks 16 in the same group. The lower ends of the second connecting wires 17 pass through the left side of the cabinet 002, the right side of the fixed frame 2 and the mounting plate 7, and the two ends of the second connecting wires 17 are connected to the connectors 18. The connector 18 at the upper end of the second connecting wire 17 is located at the arrester Above the main body 1, the lifting assembly is used to drive the other end of the second connecting wire 17 to lift; the lifting assembly includes a second guide rail 19, a lifting rod 20 and a first electric push rod 21, the second guide rails 19 are connected to the left and right sides of the inner wall of the cabinet 002, the lifting rod 20 is slidably connected between the two second guide rails 19, and the upper ends of the three second connecting wires 17 are fixedly connected to the lifting rod 20, the first electric push rod 21 is connected to the left and right sides of the inner wall of the cabinet 002, and the telescopic rod of the first electric push rod 21 is connected to the top surface of the lifting rod 20.

[0032] like Figure 7 As shown, it also includes a U-shaped block 22, an air bag 23, an air pump 24, a shunt pipe 25 and a relief valve 26. The three installation spaces inside the cabinet 002 are all connected with a U-shaped block 22 with an opening facing left, and the U-shaped block 22 corresponds to the first connecting wire 3 one by one. The left end of the first connecting wire 3 is located at the opening of the U-shaped block 22 corresponding to it. The air bag 23 is connected to the inner wall of the U-shaped block 22, the air pump 24 is connected to the front side of the fixed frame 2, the shunt pipe 25 is connected to the air outlet of the air pump 24, and the three air bags 23 are connected to the end of the shunt pipe 25, and the relief valve 26 is installed on the shunt pipe 25.

[0033] like Figure 8 and Fig. 9As shown, it also includes a guide rod 27, a slider 28, a sponge block 29, a drive motor 30, a screw rod 31 and a camera 32. The guide rod 27 is symmetrically connected to the front and back of the lower side of the interior of the cabinet 002. The two guide rods 27 are slidably connected to the sliders 28. The sliders 28 on the front and rear sides are respectively located on the front and rear sides of the lightning arrester body 1, and the side of the slider 28 close to the lightning arrester body 1 is connected to the sponge block 29. The right side of the top surface of the base 001 is symmetrically connected to the front and rear, and the output shafts of the two drive motors 30 are connected to the screw rods 31, and the screw rods 31 rotate and pass through the right side of the cabinet 002. The lower parts of the two sliders 28 are threadedly connected to the two screw rods 31 respectively. Three cameras 32 are installed at intervals on the lower rear part of the inner wall of the cabinet 002, and three cameras 32 are also installed at intervals on the rear side of the cabinet door 003. The cameras 32 on the front and rear sides are respectively located on both sides of the lightning arrester body 1.

[0034] like Fig.10 As shown, it also includes a temperature sensor 33, a fixing plate 34, a second electric push rod 35, a sealing frame 36 and a sealing strip 37. Three temperature sensors 33 are installed at intervals on the lower rear part of the inner wall of the cabinet 002. The temperature sensor 33 is located below the camera 32, and the temperature sensor 33 corresponds to the lightning arrester body 1 one by one. The lower right part of the inner wall of the cabinet 002 is connected with a fixing plate 34, and the fixing plate 34 is located below the sponge block 29. The upper right part of the inner wall of the cabinet 002 is connected with two second electric push rods 35. The telescopic rods of the two second electric push rods 35 are connected with sealing frames 36, and the sealing frames 36 correspond to the sponge block 29 one by one. The bottoms of the two sealing frames 36 are both open-type designs, and the sides of the two sealing frames 36 away from each other are also open-type designs, and the edges of the openings of the sealing frames 36 are connected with sealing strips 37, and the bottom of the sealing strip 37 contacts the top of the fixing plate 34.

[0035] Initially, the sealing frame 36 covers the outside of the sponge block 29. Under the sealing effect of the sealing frame 36 and the sealing strip 37, the sponge block 29 can be prevented from absorbing moisture in the outside air; when the power equipment in the cabinet 002 is working, the lightning arrester body 1 can absorb transient overvoltage energy, thereby preventing the power equipment from being damaged by lightning and operating overvoltage, thereby ensuring the safe operation of the power equipment, and the temperature sensor 33 can monitor the surface temperature of the lightning arrester body 1 in real time; and the air bag 23 can be inflated through the air pump 24 and the shunt pipe 25, so that the air bag 23 expands to wrap the left end of the first connecting wire 3, which plays a protective role and prevents the left end of the first connecting wire 3 from rusting; when it is necessary to detect the status of the lightning arrester body 1, first open the air release valve 26 , the air in the airbag 23 can be discharged outward through the shunt pipe 25 and the air release valve 26, so that the airbag 23 shrinks and loosens the left end of the first connecting wire 3, and then the air release valve 26 is closed, and then the lock 15 can be opened, and then the rotating frame 14 is rotated to the left to open, so that the mounting plate 7 can be exposed, and then the operator can slide the magnet 10 downward, and the magnet 10 can drive the corresponding lifting block 9 to move downward through the magnetic force, and the lifting block 9 can drive the left end of the first connecting wire 3 to move downward, so that the left end of the first connecting wire 3 can be inserted into the contact head 6, and then the screw 13 is rotated, and the screw 13 can drive the sliding frame 11 to move rightward, and the sliding frame 11 can drive the rubber block 12 to move rightward, so that the rubber block 12 can pass through the opening of the contact head 6 and press the left end of the first connecting wire 3, so that the first connecting wire 3 can be inserted into the contact head 6. The left end of a connecting wire 3 is pressed tightly into the contact head 6 to complete the connection between the first connecting wire 3 and the contact head 6, so that the lightning arrester body 1 can be grounded; then the lifting rod 20 can be driven downward by the first electric push rod 21, and the lifting rod 20 can drive the connecting head 18 at the upper end of the second connecting wire 17 to move downward, so that the connecting head 18 at the upper end of the second connecting wire 17 can be sleeved on the upper end of the lightning arrester body 1, completing the connection between the second connecting wire 17 and the lightning arrester body 1. At this time, the operator can use the connecting head 18 at the lower end of the second connecting wire 17 to connect the external detection equipment to the status of the lightning arrester body 1, without the need to cut off the power supply to the power equipment in the cabinet 002, and without manually opening the cabinet door 003 to detect the lightning arrester body 1; after the detection is completed , the connector 18 at the lower end of the second connecting wire 17 can be separated from the detection equipment, and then the lifting rod 20 is driven by the first electric push rod 21 to move upward and reset, and the lifting rod 20 can drive the connector 18 at the upper end of the second connecting wire 17 to move upward and reset, so that the second connecting wire 17 is separated from the arrester body 1, and then the screw 13 is reversed, and the screw 13 can drive the sliding frame 11 to move to the left and reset, and the sliding frame 11 can drive the rubber block 12 to move to the left and reset, so that the rubber block 12 is separated from the left end of the first connecting wire 3, and then the magnet 10 can be slid upward, and the magnet 10 can drive the corresponding lifting block 9 to move upward and reset through magnetic force, and the lifting block 9 can drive the left end of the first connecting wire 3 to move upward and separate from the contact head 6, so that the first connecting wire 3 is separated from the contact head 6;Then the rotating frame 14 can be reversed and closed, and then the rotating frame 14 can be locked by the lock 15 to prevent someone from opening the rotating frame 14 and operating it by mistake, thereby playing a safety protection role; the cameras 32 on the front and rear sides can cooperate to capture the overall appearance of the lightning arrester body 1, and can upload the captured image to an external display for display, so as to facilitate manual appearance inspection of the lightning arrester body 1. When cracks appear on the surface of the lightning arrester body 1, it needs to be replaced and repaired in time; after the lightning arrester body 1 has been used for a long time, a lot of dust will be stuck on its surface. When the lightning arrester body 1 needs to be cleaned, the second electric push rod 35 can be started first. At this time, if the temperature sensor 33 detects that the surface temperature of the lightning arrester body 1 is higher than the preset value, the second electric push rod 35 cannot be started, thereby protecting the sponge block 29 to prevent the sponge block 29 from contacting with the high temperature If the temperature sensor 33 detects that the surface temperature of the arrester body 1 is lower than the preset value, the second electric push rod 35 will drive the sealing frame 36 to move upward, so that the sealing frame 36 is separated from the sponge block 29, and the sealing frame 36 can drive the sealing strip 37 to move upward and separate from the fixed plate 34, and then the screw rod 31 can be driven by the driving motor 30 to reciprocate forward and reverse, and the screw rod 31 can drive the slider 28 and the sponge block 29 to reciprocate left and right, so that the sponge blocks 29 on the front and rear sides can clean the surface of the arrester body 1 together, and the cleaning status of the arrester body 1 can be clearly understood through the camera 32. After cleaning, the second electric push rod 35 can be controlled to drive the sealing frame 36 to move downward and reset, so that the sealing frame 36 covers the sponge block 29 again to seal and store the sponge block 29. ;

[0036] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A switch cabinet lightning protection device, comprising a lightning arrester body (1), characterized in that: The invention also comprises a fixing frame (2), a first connecting wire (3), a partition (4), a grounding wire (5), a contact head (6), a mounting plate (7), a first guide rail (8), a lifting block (9), a magnet (10), a clamping assembly and a protective assembly. The arrester body (1) is installed at intervals inside the cabinet (002), the fixing frame (2) is connected to the top surface of the base (001), the first connecting wire (3) is connected to the fixing frame (2) at intervals, and one end of the first connecting wire (3) passes through the side of the cabinet (002) and is connected to the arrester body (1), the partition (4) is connected to the inside of the fixing frame (2) at intervals, and the grounding wire (5) is installed at intervals on the inner bottom surface of the fixing frame (2), and The grounding wire (5) is located directly below the other end of the first connecting wire (3), the contact head (6) is installed on the upper end of the grounding wire (5), the mounting plate (7) is connected to the side of the fixing frame (2), the first guide rail (8) is connected to the side of the mounting plate (7) at intervals, the lifting block (9) is slidably connected to the first guide rail (8), and the lifting block (9) is fixedly connected to the first connecting wire (3), the magnet (10) is slidably connected to the side of the mounting plate (7) away from the first guide rail (8), and the magnet (10) corresponds to the lifting block (9) one by one, the clamping component is used to fix the end of the first connecting wire (3) in the contact head (6), and the protective component is used to protect the mounting plate (7).

2. A switch cabinet lightning protection device according to claim 1, characterized in that: The clamping assembly comprises a sliding frame (11), a rubber block (12) and a screw rod (13); the sliding frame (11) is slidably connected to a mounting plate (7); the rubber block (12) is connected to the sliding frame (11) at intervals, and the rubber block (12) corresponds to the contact head (6) one by one; the screw rod (13) is rotatably connected to the mounting plate (7), and the screw rod (13) is threadedly connected to the sliding frame (11).

3. A switch cabinet lightning protection device according to claim 2, characterized in that: The protection component comprises a rotating frame (14) and a lock (15). The rotating frame (14) is rotatably connected to the fixed frame (2), and the rotating frame (14) blocks the side of the mounting plate (7). The lock (15) is installed on the side of the rotating frame (14).

4. A switch cabinet lightning protection device as claimed in claim 3, characterized in that: It also includes a fixed block (16), a second connecting wire (17), a connector (18) and a lifting assembly, wherein the fixed block (16) is connected to the inner wall of the cabinet (002) at intervals, the second connecting wire (17) is connected to the fixed block (16), and one end of the second connecting wire (17) passes through the side of the cabinet (002) and the side of the fixed frame (2) and is connected to the mounting plate (7), the connector (18) is respectively connected to both ends of the second connecting wire (17), and the lifting assembly is used to drive the other end of the second connecting wire (17) to move up and down.

5. A switch cabinet lightning protection device as claimed in claim 4, characterized in that: The lifting assembly comprises a second guide rail (19), a lifting rod (20) and a first electric push rod (21); the second guide rail (19) is symmetrically connected to the inner wall of the cabinet (002); the lifting rod (20) is slidably connected to the second guide rail (19); the other end of the second connecting wire (17) is fixedly connected to the lifting rod (20); the other end of the second connecting wire (17) is located directly above the arrester body (1); the first electric push rod (21) is symmetrically connected to the inner wall of the cabinet (002); and the telescopic rod of the first electric push rod (21) is connected to the lifting rod (20).

6. A switch cabinet lightning protection device according to claim 5, characterized in that: The invention also comprises a U-shaped block (22), an air bag (23), an air pump (24), a shunt pipe (25) and an air release valve (26); the U-shaped block (22) is connected to the inner wall of the cabinet (002) at intervals, and the U-shaped block (22) corresponds to the first connecting wire (3) one by one; the air bag (23) is connected to the U-shaped block (22), the air pump (24) is connected to the side of the fixing frame (2), the shunt pipe (25) is connected to the air outlet of the air pump (24), and the end of the shunt pipe (25) is communicated with the air bag (23); and the air release valve (26) is installed on the shunt pipe (25).

7. A switch cabinet lightning protection device according to claim 6, characterized in that: The cabinet (002) further comprises a guide rod (27), a slider (28), a sponge block (29), a drive motor (30) and a screw rod (31), wherein the guide rod (27) is symmetrically connected to the inner wall of the cabinet (002), the slider (28) is slidably connected to the guide rod (27), the sponge block (29) is connected to the side of the slider (28), the drive motor (30) is symmetrically mounted on the top surface of the base (001), the screw rod (31) is connected to the output shaft of the drive motor (30), and the screw rod (31) rotates and penetrates the side of the cabinet (002), and the slider (28) is threadedly connected to the screw rod (31).

8. A switch cabinet lightning protection device according to claim 7, characterized in that: It also includes cameras (32), which are installed at intervals on the inner wall of the cabinet (002) and the side of the cabinet door (003), and the cameras (32) are located on both sides of the lightning arrester body (1).

9. A switch cabinet lightning protection device according to claim 8, characterized in that: The cabinet also includes a temperature sensor (33), a fixing plate (34), a second electric push rod (35), a sealing frame (36) and a sealing strip (37); the temperature sensor (33) is mounted on the inner wall of the cabinet (002); the fixing plate (34) is connected to the inner wall of the cabinet (002); the second electric push rod (35) is symmetrically mounted on the inner wall of the cabinet (002); the sealing frame (36) is connected to the telescopic rod of the second electric push rod (35); and the sealing strip (37) is connected to the sealing frame (36).

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