Equipment capable of monitoring environment and fire hazards in electrical cabinet in all directions

Abstract

The invention discloses equipment capable of monitoring the environment and fire hazards in an electrical cabinet in all directions, and relates to the technical field of electrics. A base is included; the mounting mechanism is arranged outside the base, the mounting mechanism comprises a connecting plate and a mounting groove, the connecting plate is mounted outside the base, the mounting groove is formed in the base, and a limiting assembly is arranged in the connecting plate; the monitor is mounted outside the base through the mounting groove; the limiting assembly is used for limiting the connecting line according to the mounting direction of the connecting line; the equipment comprises a monitor and a moving mechanism, the moving mechanism is installed outside the monitor, the moving mechanism comprises an outer ring, a contact assembly is arranged outside the outer ring, the contact assembly is used for making contact with the upper surface of the monitor, and the equipment capable of monitoring the environment and fire hazards in the electrical cabinet in an all-around mode achieves the purpose of improving the use efficiency of the equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical technology, in particular to a device capable of monitoring the environment and fire hazards in the electrical cabinet in all directions. BACKGROUND

[0002] With the continuous development of China's economy, the demand for electrical equipment is increasing. Electrical equipment, as a kind of cabinet for controlling current and voltage, needs the support of electrical equipment whether it is a traffic signal or a street lamp. In order to ensure the safety of electrical equipment in daily life, fire and leakage monitoring and troubleshooting of electrical equipment are particularly important.

[0003] In the patent with publication number CN119942721A, an electrical fire and leakage monitoring alarm device is disclosed. Through the use of expansion cylinders, electromagnetic coils, push-pull plates, pull lines, self-locking seats, pull rods, tension springs, pull lines and power plugs, the pull line can be pulled to disconnect the power plug from the socket. When a fire or leakage occurs, the electrical cabinet can be automatically powered off immediately, which can effectively protect the electrical cabinet and isolate it from the external power supply when the staff is performing fire extinguishing or maintenance operations. However, when installing the monitor, the monitor is directly fixed to the inner wall of the electrical cabinet, which can cause the monitor to be damaged due to moisture on the inner wall of the electrical cabinet. SUMMARY

[0004] In order to overcome the problem of directly fixing the monitor to the inner wall of the electrical cabinet when installing the monitor, which can cause the monitor to be damaged due to moisture on the inner wall of the electrical cabinet, the present application provides a device capable of monitoring the environment and fire hazards in the electrical cabinet in all directions, which includes a base; An installation mechanism is provided on the outside of the base, which includes a connecting plate and an installation slot. The connecting plate is installed on the outside of the base, and the installation slot is opened in the inside of the base. The inside of the connecting plate is provided with a limiting assembly; A monitor is installed on the outside of the base through the installation slot; A connecting line is installed on the outside of the monitor, and the limiting assembly is used to limit the connecting line according to the installation direction of the connecting line; A moving mechanism is installed on the outside of the monitor, which includes an outer ring. The outer ring is installed on the outside of the monitor, and the outside of the outer ring is provided with a contact assembly for contacting the upper surface of the monitor.

[0005] Preferably, the installation mechanism further includes: A moving frame is slidingly connected to the inside of the base, and three moving frames are uniformly arranged; A plurality of limiting cylinders are arranged inside the moving frame and are evenly arranged; A fixing cylinder is arranged inside the limiting cylinder, and a through hole is arranged in the fixing cylinder.

[0006] Preferably, the mounting mechanism further comprises: A center ring is arranged inside the base; A plurality of clamping seats are arranged outside the center ring and are evenly arranged; A first stretching rod is connected with the moving frame and is arranged inside the clamping seat.

[0007] Preferably, the mounting mechanism further comprises: A first push rod is arranged inside the base; A suction cup is connected with the telescopic end of the first push rod; A mounting hole is arranged in the connecting plate.

[0008] Preferably, the limiting assembly comprises: A second stretching rod is arranged inside the connecting plate and has two; A moving plate is arranged outside the second stretching rod; An L-shaped plate is arranged outside the moving plate.

[0009] Preferably, the limiting assembly further comprises: A plurality of first fixing blocks are arranged outside the moving plate; A plurality of second fixing blocks are arranged outside the moving plate; A plurality of connecting rods are slidingly connected inside the first fixing blocks; A plurality of push pieces are connected with the connecting rods.

[0010] Preferably, the moving mechanism further comprises: A plurality of sliding blocks are slidingly connected outside the outer ring and are connected with the contact assembly; A plurality of ventilation holes are arranged in the monitor; A plurality of sensors are arranged outside the monitor.

[0011] Preferably, the contact assembly comprises: A limiting block is arranged outside the outer ring, and the limiting block is provided with three; An adjusting rod is arranged outside the sliding block; A fixed frame is connected with the adjusting rod.

[0012] Preferably, the contact assembly further comprises: An adjusting column is arranged inside the fixed frame; A cross rod is connected with the adjusting column; A brush plate is arranged at the bottom of the cross rod; A plurality of brush strips are arranged outside the brush plate, and are uniformly arranged.

[0013] The application provides a device capable of monitoring the environment and fire hazards in an electrical cabinet in all directions. 1. The device capable of monitoring the environment and fire hazards in an electrical cabinet in all directions, by setting the mounting mechanism, using screws to connect the base with the inner wall of the electrical cabinet through the mounting port, and then installing the monitor with the base through the mounting groove, the monitor is replaced by being directly fixed on the inner wall of the electrical cabinet, so that the monitor is prevented from being damaged due to moisture in the inner wall of the electrical cabinet. The monitor is secondarily fixed through the mounting groove and the suction cup, so that the position of the monitor is further reinforced. The monitor is double-protected from moisture by the base and the moisture-absorbing material in the fixing cylinder.

[0014] 2. The device capable of monitoring the environment and fire hazards in an electrical cabinet in all directions, by setting the limiting assembly, according to the installation direction of the connecting line, selecting a moving plate at a suitable position, and installing the connecting line between the connecting rod and the moving plate, the connecting line is prevented from being suspended or directly fixed on the inner wall of the electrical cabinet, so that the connecting line is prevented from being damaged due to moisture in the inner wall of the electrical cabinet.

[0015] 3. The device capable of monitoring the environment and fire hazards in an electrical cabinet in all directions, by setting the moving mechanism and arranging a plurality of sensors in the moving mechanism, the environment temperature and humidity in the electrical cabinet, infrared electrical flame detection, gas odor monitoring and infrared laser particle detection are facilitated. The electrical faults in the high-voltage and low-voltage cabinets are cable, load switch and circuit breaker, and the overheat of the equipment will decompose particles and cause abnormal gas concentration. The monitor can alarm in real time before visual smoke or open fire occurs, so that the electrical fire is monitored and prevented as early as possible.

[0016] 4. The device can monitor the environment and fire hazards in the electrical cabinet. The contact assembly is provided, and when the monitor is maintained, the air vents of the monitor are easily cleaned. When the monitor is used, the three sliding blocks are in contact with the three limiting blocks, and at this time, the air vents are all exposed, which is convenient for the ventilation and heat dissipation of the monitor. When the monitor is maintained, the position of the brush plate and the brush strip is adjusted manually, the brush plate, the brush strip and the air vent are in contact, the air vent is easily cleaned, and the cleaning process avoids the sensor and avoids damaging the sensor. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the back structure of the application; Figure 3 It is a schematic diagram of the installation mechanism structure of the application; Figure 4 It is a schematic diagram of the structure of A in the application; Figure 3 Figure 5 It is a schematic diagram of the limiting assembly structure of the application; Figure 6 It is a schematic diagram of the moving mechanism structure of the application; Figure 7 It is a schematic diagram of the contact assembly structure of the application; Figure 8 It is a schematic diagram of the structure of B in the application. Figure 7

[0018] In the figure: 1, base; 2, installation mechanism; 201, connecting plate; 202, installation port; 203, limiting assembly; 2031, second stretching rod; 2032, moving plate; 2033, L-shaped plate; 2034, first fixed block; 2035, tab; 2036, connecting rod; 2037, second fixed block; 204, moving frame; 205, center ring; 206, push rod; 207, suction cup; 208, installation groove; 209, limiting cylinder; 210, fixed cylinder; 211, first stretching rod; 212, clamping seat; 3, monitor; 4, moving mechanism; 401, outer ring; 402, sliding block; 403, contact assembly; 4031, limiting block; 4032, adjusting rod; 4033, fixed frame; 4034, adjusting column; 4035, cross rod; 4036, brush strip; 4037, brush plate; 404, air vent; 405, sensor; 5, connecting line. DETAILED DESCRIPTION

[0019] ​​The application is further described below in conjunction with the drawings and detailed description. The embodiments of the application are given for illustrative and descriptive purposes only and are not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments are chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application in various embodiments and with various modifications as are suited to the particular use contemplated.

[0020] As shown in Figures 1-8 The application provides a technical solution: comprising a base 1; An installation mechanism 2 is arranged outside the base 1, the installation mechanism 2 comprises a connecting plate 201 and an installation slot 208, the connecting plate 201 is internally provided with a placing slot, three connecting plates 201 are arranged uniformly, three installation slots 208 are arranged uniformly, the connecting plate 201 is arranged outside the base 1, the installation slot 208 is arranged inside the base 1, the connecting plate 201 is internally provided with a limiting assembly 203, the limiting assembly 203 is arranged in the placing slot, and the connecting plate 201 is internally provided with an installation opening 202; A monitor 3 is arranged outside the base 1 through the installation slot 208; A connecting line 5 is arranged outside the monitor 3, and the limiting assembly 203 is used for limiting the connecting line 5 according to the installation direction of the connecting line 5; A moving mechanism 4 is arranged outside the monitor 3, the moving mechanism 4 comprises an outer ring 401, the outer ring 401 is arranged outside the monitor 3, the outer ring 401 is externally provided with a contact assembly 403, and the contact assembly 403 is used for contacting the upper surface of the monitor 3.

[0021] Before using the device, the base 1 is arranged on the inner wall of an electrical cabinet, a screw is arranged on the inner wall of the electrical cabinet through the installation opening 202, and then the base 1 is fixed on the inner wall of the electrical cabinet. Then the installation mechanism 2 is manually adjusted, and the position of the connecting line 5 is adjusted. Then the monitor 3 is manually arranged outside the base 1 through the installation slot 208, and when the monitor 3 is regularly opened and maintained, the installation mechanism 2 and the moving mechanism 4 are adjusted, and the monitor 3 is processed.

[0022] The installation mechanism 2 further comprises: A moving frame 204 is slidingly connected inside the base 1, and three moving frames 204 are arranged uniformly; A limiting cylinder 209 is arranged inside the moving frame 204, and a plurality of limiting cylinders 209 are arranged uniformly; The fixed cylinder 210 is installed inside the limiting cylinder 209, and a through hole is formed in the inside of the fixed cylinder 210, and a plurality of through holes are formed in the through hole; The center ring 205 is installed inside the base 1; The card seat 212 is arranged outside the center ring 205, and the card seat 212 is provided with three card seats and is uniformly arranged; The first stretching rod 211 is connected with the moving frame 204, and the first stretching rod 211 is installed inside the card seat 212; The first push rod 206 is installed at the fixed end of the first push rod 206 inside the base 1, and the first push rod 206 is provided as an electric push rod 206; The suction cup 207 is connected with the telescopic end of the first push rod 206.

[0023] After the monitor 3 is installed, the first push rod 206 is started, and the monitor 3 is manually pressed, the first push rod 206 drives the suction cup 207 to move to the back of the monitor 3, until the suction cup 207 is suctioned and fixed with the back of the monitor 3, and the position of the monitor 3 is reinforced. The moving frame 204 is manually pulled away from the base 1, at this time the first stretching rod 211 is stretched and deformed, the fixed cylinder 210 filled with moisture-absorbing material is manually installed into the limiting cylinder 209, and then the moving frame 204 is pushed into the base 1.

[0024] According to the installation direction of the connecting line 5, the corresponding limiting assembly 203 is manually adjusted, and the position of the connecting line 5 is fixed.

[0025] By setting the installation mechanism 2, the base 1 and the inner wall of the electrical cabinet are connected through the installation port 202, and then the base 1 and the monitor 3 are installed through the installation groove 208, instead of directly fixing the monitor 3 on the inner wall of the electrical cabinet, so as to avoid that the monitor 3 is damaged due to the damp of the inner wall of the electrical cabinet. By setting the installation groove 208 and the suction cup 207, the monitor 3 is fixed twice, so as to reinforce the position of the monitor 3. And by placing moisture-absorbing material in the fixed cylinder 210, the monitor 3 is double protected from moisture by the base 1 and the moisture-absorbing material in the fixed cylinder 210.

[0026] The limiting assembly 203 comprises: The second stretching rod 2031 is installed inside the connecting plate 201, and the second stretching rod 2031 is provided with two second stretching rods; The moving plate 2032 is installed outside the second stretching rod 2031, and the moving plate 2032 is provided with a sticky paste which can be torn off at the back of the moving plate 2032; L-shaped plate 2033, L-shaped plate 2033 is installed outside the moving plate 2032, and the L-shaped plate 2033 is clamped outside the connecting plate 201; First fixed block 2034, first fixed block 2034 is installed outside the moving plate 2032, first fixed block 2034 is provided with a plurality of, first fixed block 2034 is provided with rubber material; Second fixed block 2037, second fixed block 2037 is installed outside the moving plate 2032, second fixed block 2037 is provided with a plurality of, second fixed block 2037 is provided with sticky material; Connecting rod 2036, connecting rod 2036 is slidably connected inside the first fixed block 2034, connecting rod 2036 is provided with a plurality of, the top of connecting rod 2036 is provided with a disc shape, avoiding the connecting rod 2036 from the first fixed block 2034 falls off; Dial 2035, dial 2035 is connected with a plurality of connecting rods 2036.

[0027] According to the installation direction of the connecting line 5, the moving plate 2032 is selected at a suitable position, the L-shaped plate 2033 is manually dialled, the L-shaped plate 2033 drives the moving plate 2032 to separate from the placing groove of the connecting plate 201, the sticky paste is manually torn and pulled, and the moving plate 2032 is pressed to be attached to the inner wall of the electrical cabinet. Then manually pass the connecting line 5 through the connecting plate 201, manually dial the dial 2035, the dial 2035 drives the connecting rod 2036 to pass through the first fixed block 2034, the top of the connecting rod 2036 contacts the second fixed block 2037, and the connecting line 5 is fixed between the connecting rod 2036 and the moving plate 2032.

[0028] By setting the limiting assembly 203, according to the installation direction of the connecting line 5, the moving plate 2032 is selected at a suitable position, the connecting line 5 is installed between the connecting rod 2036 and the moving plate 2032, to avoid the connecting line 5 to be installed in the air or the connecting line 5 to be directly fixed on the inner wall of the electrical cabinet, so as to avoid the connecting line 5 to be damaged due to moisture in the electrical cabinet.

[0029] The moving mechanism 4 further comprises: Sliding block 402, sliding block 402 is slidably connected outside the outer ring 401, sliding block 402 is provided with three, contact assembly 403 is connected with sliding block 402; Vent 404, vent 404 is provided in the inside of the monitor 3, and the vent 404 is provided with a plurality of; Sensor 405, sensor 405 is provided outside the monitor 3, sensor 405 is provided with a plurality of, a plurality of sensors 405 respectively monitor the environment temperature and humidity, infrared electrical flame detection, gas odor monitoring and infrared laser particle detection.

[0030] By setting the moving mechanism 4 and setting a plurality of sensors 405 in the moving mechanism 4, the environmental temperature and humidity in the electrical cabinet can be monitored, the infrared electrical flame can be detected, the gas odor can be monitored, and the infrared laser particle can be detected. The electrical failure heating object in the high and low voltage cabinet is the cable, the load switch and the circuit breaker and other electrical equipment. The overheating of such equipment will decompose particles and abnormal gas concentration. The monitor 3 will alarm in real time before the visual smoke or open fire occurs, so as to realize the early monitoring and prevention of electrical fire.

[0031] The contact assembly 403 comprises: The limiting block 4031 is arranged outside the outer ring 401, and the limiting block 4031 is provided with three limiting blocks 4031 arranged in a viscous material; The adjusting rod 4032 is installed outside the sliding block 402, and the adjusting rod 4032 is provided as a rod with a length capable of being manually adjusted; The fixed frame 4033 is connected with the adjusting rod 4032; The adjusting column 4034 is installed inside the fixed frame 4033, and the adjusting column 4034 is provided as a rod with a length capable of being manually adjusted; The cross rod 4035 is connected with the adjusting column 4034; The brush plate 4037 is installed at the bottom of the cross rod 4035; The brush strip 4036 is installed outside the brush plate 4037, and the brush strip 4036 is provided with a plurality of brush strips 4036 arranged uniformly.

[0032] When the monitor 3 is overhauled, the length of the adjusting column 4034 is manually adjusted, so that the brush plate 4037 is directly above the air vent 404, and then the length of the adjusting rod 4032 is manually adjusted, so that the brush plate 4037 is in contact with the surface of the monitor 3. The brush plate 4037 and the brush strip 4036 start to contact the air vent 404. At this time, the sensor 405 is below the adjusting column 4034 and does not contact the adjusting column 4034. The position of the sliding block 402 is manually adjusted, and the sliding block 402 drives the adjusting rod 4032, the fixed frame 4033, the adjusting column 4034, the cross rod 4035, the brush plate 4037 and the brush strip 4036 to move. The brush plate 4037 and the brush strip 4036 start to contact the air vent 404, and reduce the dust and impurities in the air vent 404.

[0033] By setting the contact assembly 403, when the monitor 3 is overhauled, the air vents 404 of the monitor 3 are easily cleaned. When the monitor 3 is used, the three sliding blocks 402 are in contact with the three limiting blocks 4031, at this time, the air vents 404 are all exposed, which is convenient for the ventilation and heat dissipation of the monitor 3. When the monitor 3 is overhauled, the positions of the plurality of brush plates 4037 and the brush strips 4036 are manually adjusted, so as to control the contact between the brush plates 4037, the brush strips 4036 and the air vents 404, and the air vents 404 are simply cleaned, and the cleaning process avoids the sensor 405, thereby avoiding damaging the sensor 405.

[0034] Working principle: Before using the device, install the base 1 on the inner wall of the electrical cabinet, install the screws through the installation port 202 to the inner wall of the electrical cabinet, and then fix the base 1 on the inner wall of the electrical cabinet.

[0035] Manually install the monitor 3 outside the base 1 through the installation slot 208, and then manually adjust the installation mechanism 2 and the position of the connecting line 5.

[0036] After installing the monitor 3, open the first push rod 206 and manually press the monitor 3. The first push rod 206 drives the suction cup 207 to move to the back of the monitor 3 until the suction cup 207 is suctioned and fixed with the back of the monitor 3, thereby reinforcing the position of the monitor 3. Manually pull the moving frame 204 away from the base 1, at this time, the first stretching rod 211 is stretched and deformed. Manually install the fixed cylinder 210 filled with moisture-absorbing material into the limiting cylinder 209, and then push the moving frame 204 into the base 1.

[0037] According to the installation direction of the connecting line 5, manually adjust the corresponding limiting assembly 203 to fix the position of the connecting line 5.

[0038] According to the installation direction of the connecting line 5, select the moving plate 2032 at a suitable position, manually dial the L-shaped plate 2033, the L-shaped plate 2033 drives the moving plate 2032 to separate from the placement slot of the connecting plate 201, manually tears the adhesive sticker, and presses the moving plate 2032 to make the moving plate 2032 adhere to the inner wall of the electrical cabinet. Then manually pass the connecting line 5 through the connecting plate 201, manually dial the dial piece 2035, the dial piece 2035 drives the connecting rod 2036 to pass through the first fixed block 2034, the connecting rod 2036 is in contact with the second fixed block 2037, and the connecting line 5 is fixed between the connecting rod 2036 and the moving plate 2032.

[0039] Then, when regularly opening the cabinet to overhaul the monitor 3, adjust the installation mechanism 2 and the moving mechanism 4 to process the monitor 3.

[0040] When the monitor 3 is maintained, the length of the adjusting column 4034 is manually adjusted so that the brush plate 4037 is directly above the air vent 404, then the length of the adjusting rod 4032 is manually adjusted so that the brush plate 4037 is in contact with the surface of the monitor 3, the brush plate 4037 and the brush strip 4036 start to contact the air vent 404, at this time the sensor 405 is below the adjusting column 4034 and is not in contact with the adjusting column 4034, the position of the sliding block 402 is manually adjusted, the sliding block 402 drives the adjusting rod 4032, the fixed frame 4033, the adjusting column 4034, the cross rod 4035, the brush plate 4037 and the brush strip 4036 to move, the brush plate 4037 and the brush strip 4036 start to contact the air vent 404, and the dust and impurities in the air vent 404 are reduced.

[0041] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless specifically described and limited.

Claims

1. An all-around monitoring device for the environment and fire hazards in an electrical cabinet, comprising a base (1), characterized in that: a mounting mechanism (2) is arranged outside the base (1), the mounting mechanism (2) comprises a connecting plate (201) and a mounting slot (208), the connecting plate (201) is arranged outside the base (1), the mounting slot (208) is arranged inside the base (1), and a limiting assembly (203) is arranged inside the connecting plate (201); a monitor (3) is arranged outside the base (1) through the mounting slot (208); a connecting line (5) is arranged outside the monitor (3), and the limiting assembly (203) is used for limiting the connecting line (5) according to the installation direction of the connecting line (5); and a moving mechanism (4) is arranged outside the monitor (3), the moving mechanism (4) comprises an outer ring (401) arranged outside the monitor (3), and a contact assembly (403) is arranged outside the outer ring (401) and used for contacting the upper surface of the monitor (3).

2. The all-around monitoring device for the environment and fire hazards in an electrical cabinet according to claim 1, characterized in that: the mounting mechanism (2) further comprises: a moving frame (204) which is slidingly connected inside the base (1), and three moving frames (204) are evenly arranged; a limiting cylinder (209) which is arranged inside the moving frame (204), and a plurality of limiting cylinders (209) are evenly arranged; and a fixing cylinder (210) which is arranged inside the limiting cylinder (209), and a through hole is arranged inside the fixing cylinder (210).

3. The all-around monitoring device for the environment and fire hazards in an electrical cabinet according to claim 2, characterized in that: the mounting mechanism (2) further comprises: a center ring (205) which is arranged inside the base (1); a clamping seat (212) which is arranged outside the center ring (205), and three clamping seats (212) are evenly arranged; and a first stretching rod (211) which is connected with the moving frame (204) and is arranged inside the clamping seat (212).

4. The all-around monitoring device for the environment and fire hazards in an electrical cabinet according to claim 3, characterized in that: the mounting mechanism (2) further comprises: a first push rod (206) whose fixed end is arranged inside the base (1); a suction cup (207) which is connected with the telescopic end of the first push rod (206); and a mounting port (202) which is arranged inside the connecting plate (201). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 5. The device of claim 1, wherein the limiting assembly (203) comprises: a second stretching rod (2031) installed inside the connecting plate (201), the second stretching rod (2031) being provided with two; a moving plate (2032) installed outside the second stretching rod (2031); and an L-shaped plate (2033) installed outside the moving plate (2032).

6. The device of claim 5, wherein the limiting assembly (203) further comprises: a first fixed block (2034) installed outside the moving plate (2032), the first fixed block (2034) being provided with a plurality of; a second fixed block (2037) installed outside the moving plate (2032), the second fixed block (2037) being provided with a plurality of; a connecting rod (2036) slidingly connected inside the first fixed block (2034), the connecting rod (2036) being provided with a plurality of; and a push piece (2035) connected with the plurality of connecting rods (2036).

7. The device of claim 1, wherein the moving mechanism (4) further comprises: a sliding block (402) slidingly connected outside the outer ring (401), the sliding block (402) being provided with three, the contact assembly (403) being connected with the sliding block (402); a ventilation opening (404) formed inside the monitor (3), the ventilation opening (404) being provided with a plurality of; and a sensor (405) provided outside the monitor (3), the sensor (405) being provided with a plurality of.

8. The device of claim 7, wherein the contact assembly (403) comprises: a limiting block (4031) provided outside the outer ring (401), the limiting block (4031) being provided with three; an adjusting rod (4032) installed outside the sliding block (402); and a fixed frame (4033) connected with the adjusting rod (4032).

9. The device of claim 8, wherein the contact assembly (403) further comprises: an adjusting column (4034) installed inside the fixed frame (4033); a cross rod (4035) connected with the adjusting column (4034). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ A brush plate (4037) is installed at the bottom of the cross bar (4035); A brush strip (4036) is installed outside the brush plate (4037), and a plurality of brush strips (4036) are uniformly arranged.

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