A low voltage circuit measurement and control terminal protection device

Abstract

A low-voltage circuit measurement and control terminal protection device provided by the present invention relates to the field of power system protection, and includes: a protection shell, which is hollow inside and has a predetermined accommodating space, and the inner walls on both sides are sequentially provided with a plurality of connecting blocks and overlapping blocks along the axial direction, and the opposite sides of the overlapping blocks are provided with support plates, and the top of the support plate is provided with a low-voltage circuit measurement and control terminal; a ventilation structure, which is arranged on both sides of the protection shell, and a plurality of filter screens are arranged inside; a dust removal structure, which is arranged on the top of the ventilation structure and is connected to the inside of the ventilation structure; a spray structure, which is arranged on the top of the inner wall of the protection shell; a storage structure, which is arranged at the top of the protection shell and is connected to the spray structure, and is used to store fire extinguishing materials; a dirt collecting box, which is slidably connected to the slide, and a handle is provided on one side; the present invention has the technical effects of real-time monitoring and protection, significant heat dissipation efficiency and high safety.

Description

Technical Field

[0001] The present invention relates to the technical field of power system protection, and more specifically, to a low-voltage circuit measurement and control terminal protection device. Background Art

[0002] The low-voltage circuit measurement and control terminal is an intelligent device used in low-voltage power distribution systems. It is widely used in low-voltage power distribution systems and provides a strong guarantee for the safe, stable and efficient operation of the power system.

[0003] The low-voltage circuit measurement and control terminal has the functions of accurate power parameter measurement, power metering, power quality analysis, power waveform capture, event recording, voltage trend recording, maximum value recording, energy consumption management, etc. It is equipped with rich input and output interfaces and can be used for monitoring and control of on-site equipment status, providing measurement support for the power department, providing a data basis for SCADA and smart grids, and providing a decision-making basis for efficient and intelligent management of power. The low-voltage circuit measurement and control terminal is designed with high-reliability industrial standards and adopts a variety of isolation and anti-interference measures. It can operate reliably in a high-interference power system environment. However, the low-voltage circuit measurement and control terminal needs to work for a long time in a high-intensity working environment. Due to the continuous operation of the low-voltage circuit measurement and control terminal, the low-voltage circuit measurement and control terminal equipment may overheat or short-circuit, causing the low-voltage circuit measurement and control terminal to catch fire.

[0004] In order to meet the needs of safe production and ensure the long-term stable operation of the low-voltage power distribution system, it is necessary to develop an effective and reliable protection device mechanism to protect the low-voltage circuit measurement and control terminal, so as to achieve the purpose of maintaining the normal operation of the low-voltage circuit measurement and control terminal. Summary of the invention

[0005] The purpose of the present invention is to provide a low-voltage circuit measurement and control terminal protection device with reasonable structure, high safety factor and reliable use, so as to solve the technical problems existing in the application of the prior art.

[0006] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0007] A low-voltage circuit measurement and control terminal protection device comprises a protection shell, a ventilation structure, a dust removal structure, a spray structure, a storage structure and a dirt receiving box, the interior of the protection shell is a hollow structure, the protection shell is provided with a predetermined accommodating space, the bottom of the protection shell is provided with a slideway, the inner walls on both sides of the accommodating space are provided with a plurality of connecting blocks and overlapping blocks in sequence along the axial direction, the opposite sides of the overlapping blocks are provided with a support plate, the top of the support plate is provided with a low-voltage circuit measurement and control terminal, the outside of the low-voltage circuit measurement and control terminal is provided with a protective cover, the protective cover is made of radiation-proof material, the ventilation structure is arranged on both sides of the protection shell, the ventilation structure is arranged on both sides of the protection shell, and the ventilation structure is arranged on both sides of the protection shell. A plurality of filters are provided inside the wind structure, the dust removal structure is arranged on the top of the ventilation structure, the dust removal structure is communicated with the interior of the ventilation structure, the spray structure is arranged on the top of the inner wall of the protective shell, the spray operation range of the spray structure is adapted to the accommodating space inside the protective shell, the spray structure is connected to a remote control terminal, the storage structure is arranged on the top of the protective shell, the storage structure is communicated with the spray structure, the storage structure is provided with a storage cavity, the storage cavity is used to store fire extinguishing materials, the dirt receiving box is slidably connected to the slide, and a handle is provided on one side of the dirt receiving box.

[0008] Preferably, the ventilation structure includes a ventilation shell, which is a structure with openings at both ends. A plurality of ventilation holes are provided on one side of the ventilation shell, a second filter is provided on the other side of the ventilation shell, a first filter is provided between the second filter and the ventilation holes, a blow pipe is provided on the top of the inner wall of the ventilation shell, the blow pipe is connected to the dust removal structure, a main air pipe and a plurality of bronchial pipes are provided inside the blow pipe, the main air pipe is connected to the first filter, the bronchial pipe is connected to the second filter, a guide plate is provided at the bottom of the inner wall of the ventilation shell, the guide plate is obliquely arranged at the bottom of the inner wall of the ventilation shell, the guide surface of the guide plate is arranged toward the outside of the ventilation shell, and the guide plate has a predetermined inclination angle.

[0009] Preferably, the dust removal structure comprises an electromagnetic pulser, the electromagnetic pulser is connected to the blowing pipe, and an electromagnetic pulse valve is provided on one side of the electromagnetic pulser.

[0010] Preferably, the spray structure includes a deflector cover, which is a structure that is narrow at the top and wide at the bottom. A pressure pump is provided on the top of the deflector cover, and the pressure pump is connected to the storage structure. A spray pipe is provided on the opposite side of the deflector cover, and slide rails are provided on both sides of the spray pipe. A sliding block is slidably connected in the slide rails, and the pressure pump is communicatively connected to the remote control terminal.

[0011] Preferably, the storage structure includes a storage tank, which is arranged horizontally. The fire-extinguishing material is stored inside the storage cavity of the storage tank. A filling port is provided on one side of the storage tank, and the filling port is normally closed. A display is provided on the upper surface of the other side of the storage tank, and the display is used to display the pressure inside the storage tank.

[0012] Preferably, a telescopic arm is provided on one side of the connection block, a monitoring device is provided at the telescopic end of the telescopic arm, and both the telescopic arm and the monitoring device are electrically connected to the remote control terminal.

[0013] Preferably, the monitoring device is internally provided with a sensor module, a protection execution unit module and a communication module, the sensor module is used to collect the temperature of the low-voltage circuit measurement and control terminal, the communication module is used to transmit the internal conditions of the protection shell to the remote control terminal in real time, the protection execution unit module is used to execute the signal sent by the remote control terminal, the protection execution unit module is connected to the spray structure, and the protection execution unit module links the spray structure to perform corresponding protection actions.

[0014] Preferably, the fire extinguishing material is a dry powder fire extinguishing agent.

[0015] Preferably, the protective shell is made of corrosion-resistant and high-temperature resistant material.

[0016] Preferably, the first filter is an activated carbon filter, and the second filter is a nano filter.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a sufficient heat dissipation effect for the low-voltage circuit measurement and control terminal by setting a ventilation structure and a dust removal structure, while effectively reducing the adsorption of dust generated during airflow, so that the low-voltage circuit measurement and control terminal can be maintained at a stable temperature. By cleaning the interior and regularly spraying and cleaning the dust adsorbed by the first filter and the second filter of the ventilation structure, the working efficiency of the low-voltage circuit measurement and control terminal can be better guaranteed, and the equipment can be prevented from being blocked due to dust accumulation, resulting in equipment damage and system failure.

[0019] 2. The present invention, through the setting of the spray structure and the storage structure, can promptly extinguish the fire when the low-voltage circuit measurement and control terminal catches fire due to high temperature and short circuit, without damaging the internal data of the low-voltage circuit measurement and control terminal, thereby reducing losses and ensuring the reliability and stability of the working process.

[0020] 3. The present invention further can collect the temperature and operating conditions of the low-voltage circuit measurement and control terminal in real time through the setting of the monitoring device, discover faults and abnormalities in time, and utilize the communication linkage between the monitoring device and the spray structure and the storage structure. When a problem occurs in the low-voltage circuit measurement and control terminal, it can respond quickly and make accurate response decisions, thereby providing safer and more effective protection for the low-voltage circuit measurement and control terminal.

[0021] Fourth, the present invention arranges a dirt receiving box under the spray structure, and the used dry powder fire extinguishing agent can be collected in the dirt receiving box after the spray structure performs emergency treatment. The operator can quickly clean the inside after pulling out the dirt receiving box, and the cleaning operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the low-voltage circuit measurement and control terminal protection device provided by the present invention.

[0023] Figure 2 A schematic diagram of the connection between the storage structure and the spray structure of the low-voltage circuit measurement and control terminal protection device provided by the present invention.

[0024] Figure 3 A schematic diagram of the cleaning flow direction of the storage structure and the spray structure of the low-voltage circuit measurement and control terminal protection device provided by the present invention for spraying treatment.

[0025] Figure 4 A schematic diagram of the internal structure of the ventilation structure and storage structure of the low-voltage circuit measurement and control terminal protection device provided by the present invention.

[0026] In the figure: 1. protective shell; 2. ventilation structure; 201. ventilation shell; 202. ventilation hole; 203. first filter; 204. second filter; 205. bronchial tube; 206. main air pipe; 207. spray pipe; 208. guide plate; 3. dust removal structure; 301. electromagnetic pulser; 302. electromagnetic pulse valve; 4. connecting block; 5. telescopic arm; 6. monitoring device; 7. overlap block; 8. support plate; 9. low-pressure circuit measurement and control terminal; 10. spray structure; 1001. guide cover; 1002. spray pipe; 1003. sliding block; 1004. booster pump; 1005. slide rail; 11. storage structure; 1101. storage tank; 1102. filling port; 1103. display; 1104. fire extinguishing material; 12. dirt collecting box; 13. handle; 14. slide. DETAILED DESCRIPTION

[0027] In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0028] like Figure 1-3 As shown, the present invention is a low-pressure circuit measurement and control terminal protection device, including a protection shell 1, a ventilation structure 2, a dust removal structure 3, a spray structure 10, a storage structure 11 and a dirt receiving box 12, the interior of the protection shell 1 is a hollow structure, the protection shell 1 is provided with a predetermined accommodating space, the bottom of the protection shell 1 is provided with a slideway 14, the inner walls on both sides of the accommodating space are provided with a plurality of connecting blocks 4 and overlapping blocks 7 in sequence along the axial direction, the opposite sides of the overlapping blocks 7 are provided with a support plate 8, the top of the support plate 8 is provided with a low-pressure circuit measurement and control terminal 9, the outside of the low-pressure circuit measurement and control terminal 9 is provided with a protective cover, the protective cover is made of radiation-proof material, the ventilation structure 2 is arranged on both sides of the protection shell 1, the ventilation structure A plurality of filters are provided inside the structure 2, the dust removal structure 3 is arranged at the top of the ventilation structure 2, the dust removal structure 3 is communicated with the interior of the ventilation structure 2, the spray structure 10 is arranged at the top of the inner wall of the protective shell 1, the spray operation range of the spray structure 10 is adapted to the accommodating space inside the protective shell 1, the spray structure 10 is connected to the remote control terminal, the storage structure 11 is arranged at the top of the protective shell 1, the storage structure 11 is communicated with the spray structure 10, the storage structure 11 is provided with a storage cavity, and the storage cavity is used to store fire extinguishing materials 1104, the dirt receiving box 12 is slidably connected to the slide 14, and a handle 13 is provided on one side of the dirt receiving box 12.

[0029] Preferably, the ventilation structure 2 includes a ventilation shell 201, and the ventilation shell 201 is a structure with openings at both ends. A plurality of ventilation holes 202 are provided on one side of the ventilation shell 201, and a second filter 204 is provided on the other side of the ventilation shell 201. A first filter 203 is provided between the second filter 204 and the ventilation hole 202. A blow pipe 207 is provided on the top of the inner wall of the ventilation shell 201, and the blow pipe 207 is connected to the dust removal structure 3. A main air pipe 206 and a plurality of bronchial pipes 205 are provided inside the blow pipe 207. The main air pipe 206 is connected to the first filter 203, and the bronchial pipe 205 is connected to the second filter 204. A guide plate 208 is provided at the bottom of the inner wall of the ventilation shell 201, and the guide plate 208 is obliquely arranged at the bottom of the inner wall of the ventilation shell 201, and the guide surface of the guide plate 208 is arranged toward the outside of the ventilation shell 201, and the guide plate 208 has a predetermined inclination angle.

[0030] Preferably, the dust removal structure 3 comprises an electromagnetic pulser 301 , the electromagnetic pulser 301 is connected to the blowing pipe 207 , and an electromagnetic pulse valve 302 is provided on one side of the electromagnetic pulser 301 .

[0031] Preferably, the spray structure 10 includes a flow deflector 1001, which is a structure that is narrow at the top and wide at the bottom. A pressure pump 1004 is provided on the top of the flow deflector 1001, and the pressure pump 1004 is connected to the storage structure 11. A spray pipe 1002 is provided on the opposite side of the flow deflector 1001, and slide rails 1005 are provided on both sides of the spray pipe 1002. A sliding block 1003 is slidably connected in the slide rail 1005, and the pressure pump 1004 is communicatively connected to the remote control terminal.

[0032] Preferably, the first filter is an activated carbon filter, and the second filter is a nano filter.

[0033] Preferably, the storage structure 11 includes a storage tank 1101, which is arranged horizontally. The storage cavity of the storage tank 1101 stores fire extinguishing material 1104. A filling port 1102 is provided on one side of the storage tank 1101, and the filling port 1102 is normally closed. A display 1103 is provided on the upper surface of the other side of the storage tank 1101, and the display 1103 is used to display the pressure inside the storage tank 1101.

[0034] Preferably, a telescopic arm 5 is provided on one side of the connection block 4, a monitoring device 6 is provided at the telescopic end of the telescopic arm 5, and both the telescopic arm 5 and the monitoring device 6 are electrically connected to the remote control terminal.

[0035] Preferably, the monitoring device 6 is internally provided with a sensor module, a protection execution unit module and a communication module, the sensor module is used to collect the temperature of the low-voltage circuit measurement and control terminal 9, the communication module is used to transmit the internal conditions of the protection shell 1 to the remote control terminal in real time, the protection execution unit module is used to execute the signal sent by the remote control terminal, the protection execution unit module is connected to the spray structure 10, and the protection execution unit module links the spray structure 10 to perform corresponding protection actions.

[0036] Preferably, the fire extinguishing material 1104 is a dry powder fire extinguishing agent.

[0037] Preferably, the protective shell 1 is made of corrosion-resistant and high-temperature-resistant material.

[0038] First embodiment:

[0039] In this embodiment, a low-voltage circuit measurement and control terminal protection device is provided, including a protective shell 1, which is made of corrosion-resistant and high-temperature resistant material. The interior of the protective shell 1 is a hollow structure, and the protective shell 1 is provided with a predetermined accommodating space.

[0040] A plurality of connecting blocks 4 and overlapping blocks 7 are sequentially arranged on the inner walls of both sides of the protective shell 1 along the axial direction. The connecting blocks 4 and the overlapping blocks 7 are connected to the inner wall of the protective shell 1 by means of snap-fits. A supporting plate 8 is arranged between the opposite sides of the overlapping blocks 7 arranged opposite to each other. A low-voltage circuit measurement and control terminal 9 is arranged on the top of the supporting plate 8. A protective cover is arranged outside the low-voltage circuit measurement and control terminal 9. The protective cover is made of anti-radiation material. The anti-radiation material is preferably selected, for example, electromagnetic shielding fabric or ferrite material or conductive coating is used to make the protective cover.

[0041] A telescopic arm 5 is provided on one side of the connection block 4 , and a monitoring device 6 is provided at the telescopic end of the telescopic arm 5 . Both the telescopic arm 5 and the monitoring device 6 are electrically connected to the remote control terminal.

[0042] The monitoring device 6 is internally provided with a sensor module, a protection execution unit module and a communication module. The sensor module is used to collect the temperature of the low-voltage circuit measurement and control terminal 9. The communication module is used to transmit the internal conditions of the protection shell 1 to the remote control terminal in real time. The protection execution unit module is used to execute the signal sent by the remote control terminal. The protection execution unit module is connected to the spray structure 10, and the protection execution unit module links the spray structure 10 to perform corresponding protection actions.

[0043] A slide 14 is provided at the bottom of the protective shell 1, and the slide 14 is slidably connected to the dirt receiving box 12. A handle 13 is provided on one side of the dirt receiving box 12. The operator can pull the handle 13 to pull the dirt receiving box 12 out along the slide 14 for cleaning.

[0044] The ventilation structure 2 is arranged on both sides of the protective shell 1, and a plurality of filters are arranged inside the structure. The main function of the filters is to filter dust and particles in the air to prevent dust and particles from entering the low-voltage circuit measurement and control terminal 9 with the air, thereby extending the service life of the equipment, increasing the heat dissipation speed of the low-voltage circuit measurement and control terminal 9, and improving work efficiency.

[0045] The dust removal structure 3 is arranged on the top of the ventilation structure 2 and is connected to the inside of the ventilation structure 2. When a lot of dust is adsorbed on the working surface of the filter in the ventilation structure 2, the dust removal structure 3 is started to spray the filter to blow out and remove the dust.

[0046] The spray structure 10 is arranged on the top of the inner wall of the protection shell 1 , the working range of the spray structure 10 is adapted to the accommodating space inside the protection shell 1 , and the spray structure 10 is connected to the remote control terminal.

[0047] The storage structure 11 is arranged at the top of the protective shell 1 and is connected to the spray structure 10. The storage structure 11 is provided with a storage cavity, which is used to store fire extinguishing material 1104. The fire extinguishing material 1104 is a dry powder fire extinguishing agent. The remote control terminal controls the operation of the spray structure 10, and the fire extinguishing material 1104 in the storage structure 11 is sprayed out through the spray structure 10.

[0048] like Figure 2 As shown, the ventilation structure 2 includes a ventilation shell 201, which is an open structure at both ends. A plurality of ventilation holes 202 are arranged on one side of the ventilation shell 201, and a second filter 204 is arranged on the other side of the ventilation shell 201. The second filter 204 is a nano filter made of nano material, and has higher filtering efficiency and performance. A first filter 203 is arranged between the second filter 204 and the ventilation hole 202. The first filter 203 is an activated carbon filter, which can more effectively absorb odors and particulate matter in the air, and has a significant effect in absorbing dust. A blow pipe 207 is provided at the top of the inner wall of the ventilation shell 201, and the blow pipe 207 is connected to the dust removal structure 3. A main air pipe 206 and a plurality of bronchial pipes 205 are provided inside the blow pipe 207. The main air pipe 206 is connected to the first filter screen 203, and the bronchial pipes 205 are connected to the second filter screen 204. A guide plate 208 is provided at the bottom of the inner wall of the ventilation shell 201. The guide plate 208 is obliquely arranged at the bottom of the inner wall of the ventilation shell 201, and the guide surface of the guide plate 208 is arranged toward the outside of the ventilation shell 201. The guide plate 208 has a predetermined inclination angle, and the guide plate 208 plays a guiding role during spraying dust removal.

[0049] The dust removal structure 3 includes an electromagnetic pulser 301, which is connected to the blowing pipe 207. The electromagnetic pulser 301 can instantly generate strong electromagnetic waves. The generated electromagnetic waves pass through the blowing pipe 207, the main air pipe 206 and the bronchial pipe 205 to blow the dust on the surface of the first filter 203 and the second filter 204 out of the device. Because the protective cover of the low-voltage circuit measurement and control terminal 9 is made of radiation-resistant material, the electromagnetic radiation generated by the electromagnetic pulser 301 will not affect the normal operation of the low-voltage circuit measurement and control terminal 9.

[0050] like Figure 3 As shown, an electromagnetic pulse valve 302 is provided on one side of the electromagnetic pulser 301. When working, the electromagnetic pulser 301 is started and emits electromagnetic waves. The electromagnetic waves enter the main air pipe 206 and the bronchial pipe 205 through the blowing pipe 207, and are blown to the surfaces of the first filter 203 and the second filter 204 through the main air pipe 206 and the bronchial pipe 205. Combined with the guide plate 208, the dust attached to the surfaces of the first filter 203 and the second filter 204 is blown out of the ventilation housing 201, and a small amount of dust falls into the inside of the dirt collecting box 12.

[0051] like Figure 4 As shown, the spray structure 10 includes a guide cover 1001, which has a narrow upper part and a wide lower part. A pressure pump 1004 is provided on the top of the guide cover 1001, and the pressure pump 1004 is connected to the storage structure 11. A spray pipe 1002 is provided on the inner side of the guide cover 1001, and slide rails 1005 are provided on both sides of the spray pipe 1002. A sliding block 1003 is slidably connected in the slide rail 1005. The sliding block 1003 slides in the slide rail 1005. By operating the sliding block 1003 to slide, the lumps and foreign matter generated in the spray pipe 1002 can be cleaned, thereby preventing the spray pipe 1002 from being blocked by foreign matter and causing poor spraying. The storage structure 11 includes a storage tank 1101, which is arranged horizontally. The fire extinguishing material 1104 is stored inside the storage cavity of the storage tank 1101. A filling port 1102 is provided on one side of the storage tank 1101, and the filling port 1102 is in a closed state under normal circumstances. A display 1103 is provided on the upper surface of the other side of the storage tank 1101, and the display 1103 is used to display the pressure inside the storage tank 1101.

[0052] When the booster pump 1004 receives a signal sent by the remote control terminal to the protection execution unit module, the protection execution unit module drives the booster pump 1004 to start, and sprays the dry powder fire extinguishing agent in the storage tank 1101 through the spray pipe 1002 to the inside of the protection shell 1 to extinguish the fire and cool down the low-pressure circuit measurement and control terminal 9. The spray range can cover the entire internal accommodation space of the protection shell 1. The used dry powder fire extinguishing agent falls into the dirt receiving box 12. The operator pulls out the dirt receiving box 12 along the slide 14 through the handle 13, and cleans the dirt receiving box 12 and the inside of the device.

[0053] Second embodiment:

[0054] This embodiment is similar to the first embodiment, except that, in this embodiment, the operator can manually control the start-up of the booster pump 1004 directly through the remote control terminal. The booster pump 1004 sprays the dry powder fire extinguishing agent in the storage tank 1101 through the sprinkler pipe 1002 to the inside of the protective shell 1 to extinguish the fire and cool the low-pressure circuit measurement and control terminal 9. The manual operation switching is more flexible, which can effectively improve the protection effectiveness coefficient of the device.

[0055] After the fire protection is completed, the storage volume of the fire extinguishing material 1104 (dry powder fire extinguishing agent) in the storage tank 1101 will decrease. When the storage tank 1101 needs to be refilled with the fire extinguishing material 1104, it is only necessary to open the filling port 1102 and fill the storage tank 1101 with the fire extinguishing material 1104 from the filling port 1102 to restore the storage volume of the fire extinguishing material 1104 in the storage tank 1101 to a normal value. The operator can also intuitively grasp the pressure inside the storage tank 1101 on the display 1103 to ensure that the storage structure 11 can complete the work normally.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low voltage circuit measurement and control terminal protection device, characterized in that: It comprises a protective shell (1), a ventilation structure (2), a dust removal structure (3), a spray structure (10), a storage structure (11) and a dirt receiving box (12). The interior of the protective shell (1) is a hollow structure, the protective shell (1) is provided with a predetermined accommodation space, and a slideway (14) is provided at the bottom of the protective shell (1). A plurality of connecting blocks (4) and overlapping blocks (7) are sequentially arranged on the inner walls of both sides of the accommodating space along the axial direction, and a supporting plate (8) is arranged on the opposite side of the overlapping block (7). A low-voltage circuit measurement and control terminal (9) is provided on the top of the support plate (8), and a protective cover is provided outside the low-voltage circuit measurement and control terminal (9), wherein the protective cover is made of radiation-proof material. The ventilation structure (2) is arranged through both sides of the protective shell (1), and a plurality of filter screens are arranged inside the ventilation structure (2). The dust removal structure (3) is arranged on the top of the ventilation structure (2), and the dust removal structure (3) is connected to the interior of the ventilation structure (2). The spray structure (10) is arranged on the top of the inner wall of the protective shell (1); the spray operation range of the spray structure (10) is adapted to the accommodating space inside the protective shell (1); the spray structure (10) is connected to a remote control terminal. The storage structure (11) is arranged at the top of the protective shell (1), the storage structure (11) is in communication with the spray structure (10), and the storage structure (11) is provided with a storage cavity, and the storage cavity is used to store fire extinguishing material (1104). The dirt receiving box (12) is slidably connected to the slideway (14), and a handle (13) is provided on one side of the dirt receiving box (12). The ventilation structure (2) comprises a ventilation shell (201), the ventilation shell (201) is a structure with two ends open, a plurality of ventilation holes (202) are provided on one side of the ventilation shell (201), a second filter screen (204) is provided on the other side of the ventilation shell (201), a first filter screen (203) is provided between the second filter screen (204) and the ventilation holes (202), a blow pipe (207) is provided on the top of the inner wall of the ventilation shell (201), the blow pipe (207) is connected to the dust removal structure (3), and the blow pipe (207) is connected to the dust removal structure (3). 7) is provided with a main air pipe (206) and a plurality of bronchial pipes (205) inside, the main air pipe (206) is connected to the first filter screen (203), the bronchial pipes (205) are connected to the second filter screen (204), a guide plate (208) is provided at the bottom of the inner wall of the ventilation shell (201), the guide plate (208) is arranged obliquely at the bottom of the inner wall of the ventilation shell (201), the guide surface of the guide plate (208) is arranged toward the outside of the ventilation shell (201), and the guide plate (208) has a predetermined inclination angle.

2. The low-voltage circuit measurement and control terminal protection device according to claim 1 is characterized in that: The dust removal structure (3) comprises an electromagnetic pulser (301), the electromagnetic pulser (301) is connected to the blowing pipe (207), and an electromagnetic pulse valve (302) is provided on one side of the electromagnetic pulser (301).

3. The low-voltage circuit measurement and control terminal protection device according to claim 1 is characterized in that: The spray structure (10) comprises a flow deflector (1001), the flow deflector (1001) is a structure that is narrow at the top and wide at the bottom, a pressure pump (1004) is provided on the top of the flow deflector (1001), the pressure pump (1004) is connected to the storage structure (11), a spray pipe (1002) is provided on the opposite side of the flow deflector (1001), slide rails (1005) are provided on both sides of the spray pipe (1002), a sliding block (1003) is slidably connected inside the slide rail (1005), and the pressure pump (1004) is communicatively connected to a remote control terminal.

4. The low-voltage circuit measurement and control terminal protection device according to claim 1 or 3, characterized in that: The storage structure (11) comprises a storage tank (1101), the storage tank (1101) being arranged horizontally, a fire extinguishing material (1104) being stored inside a material storage cavity of the storage tank (1101), a filling port (1102) being provided on one side of the storage tank (1101), the filling port (1102) being in a closed state under normal conditions, and a display (1103) being provided on the upper surface of the other side of the storage tank (1101), the display (1103) being used to display the pressure inside the storage tank (1101).

5. The low-voltage circuit measurement and control terminal protection device according to claim 1 is characterized in that: A telescopic arm (5) is provided on one side of the connection block (4); a monitoring device (6) is provided at the telescopic end of the telescopic arm (5); and both the telescopic arm (5) and the monitoring device (6) are electrically connected to a remote control terminal.

6. The low-voltage circuit measurement and control terminal protection device according to claim 5 is characterized in that: The monitoring device (6) is internally provided with a sensor module, a protection execution unit module and a communication module. The sensor module is used to collect the temperature of the low-voltage circuit measurement and control terminal (9). The communication module is used to transmit the internal conditions of the protection housing (1) to the remote control terminal in real time. The protection execution unit module is used to execute a signal sent by the remote control terminal. The protection execution unit module is connected to the spray structure (10). The protection execution unit module links the spray structure (10) to perform a corresponding protection action.

7. The low-voltage circuit measurement and control terminal protection device according to claim 4 is characterized in that: The fire extinguishing material (1104) is a dry powder fire extinguishing agent.

8. The low-voltage circuit measurement and control terminal protection device according to claim 1 is characterized in that: The protective shell (1) is made of corrosion-resistant and high-temperature-resistant material.

9. The low-voltage circuit measurement and control terminal protection device according to claim 1 is characterized in that: The first filter is an activated carbon filter, and the second filter is a nano filter.

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