A distribution box fault detection alarm device

Abstract

The invention discloses a distribution box fault detection alarm device, which relates to the technical field of distribution boxes. The distribution box fault detection alarm device comprises a distribution box body, a mounting plate is fixedly installed inside the distribution box body, an electric push rod is fixedly installed on the surface of the mounting plate, a main switch is fixedly installed on the surface of the mounting plate, a wiring groove is provided below the main switch, an alarm light is fixedly installed on the outer wall of the distribution box body, and further comprises: a disconnecting device, the disconnecting device comprises a wiring board, a lifting plate, a docking plate, a detector, a limit plate, a U-shaped plate and a pushing plate. The distribution box fault detection alarm device can realize rapid installation of equipment and disconnection of lines at the same time, further effectively isolate power supply, effectively prevent the risk of accidental electric shock, and avoid injuries to workers due to accidents when performing maintenance or overhaul of electrical equipment.

Description

Technical Field

[0001] The invention relates to the technical field of distribution boxes, and in particular to a fault detection and alarm device for a distribution box. Background Art

[0002] The distribution box fault detection alarm device is an important device for monitoring and protecting the distribution system. It is mainly used to detect electrical faults and abnormal conditions in the distribution box and send out alarm signals in time for timely processing to ensure equipment and personal safety.

[0003] The patent with patent announcement number CN220752853U relates to a fault detection and alarm device for a tunnel distribution box. The patent provides a tunnel distribution box fault detection and alarm device that facilitates maintenance personnel to understand the internal situation of the distribution box and improves maintenance efficiency. A tunnel distribution box fault detection and alarm device includes an outer insulating plate, an inner insulating plate, an equipment box, a camera and an alarm light. The left side of the outer insulating plate is connected to the inner insulating plate, the left side of the inner insulating plate is connected to the equipment box, the middle left side of the equipment box is connected to the camera, and the upper right side of the outer insulating plate is connected to the alarm light. When a fault in the distribution box is detected, the patent uses a fill light to fill in the internal environment of the distribution box, and then uses a camera to capture and shoot the internal situation, and then transmits the captured picture, which can facilitate maintenance personnel to understand the internal situation of the distribution box and improve maintenance efficiency.

[0004] In the above patent, the internal environment of the distribution box is supplemented with light, and the internal situation is captured and photographed by a camera, and then the captured picture is transmitted, which can make it easier for maintenance personnel to understand the internal situation of the distribution box and improve maintenance efficiency. However, when a device fails, the line that is not disconnected in time may cause the current to increase abnormally, causing equipment overload, and thus increasing the risk of fire. For this reason, a distribution box fault detection alarm device with a disconnecting device is designed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a distribution box fault detection and alarm device, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a distribution box fault detection alarm device, including a distribution box body, a mounting plate fixedly installed inside the distribution box body, an electric push rod fixedly installed on the surface of the mounting plate, a main gate fixedly installed on the surface of the mounting plate, a wiring groove is provided below the main gate, an alarm light is fixedly installed on the outer wall of the distribution box body, and also includes: a disconnecting device, the disconnecting device includes a wiring board, a lifting plate, a docking plate, a detector, a limit plate, a U-shaped plate and a pushing plate, the output end of the electric push rod moves downward to drive the pushing plate to move downward, the pushing plate moves downward to contact and squeeze the U-shaped plate to move, the wiring groove is provided below the main gate, and the outer wall of the distribution box body is fixedly installed with an alarm light. The plate is slidably installed inside the wiring groove, the lifting plate is slidably installed on the surface of the mounting plate, the docking plate is fixedly installed on the side of the lifting plate close to the main gate, the detector is fixedly installed on the surface of the lifting plate, the limit plate is fixedly installed on the side of the lifting plate away from the main gate, the surface of the mounting plate is provided with a slide groove, the U-shaped plate is slidably installed inside the slide groove, the pushing plate is fixedly installed on the output end of the electric push rod, the detector is provided with a detection module and a control module, the control module is electrically connected to the electric push rod, the control module is electrically connected to the alarm light, and the docking plate moves downward to drive the external wire to break away from the contact with the wiring board, thereby realizing the disconnection of the line.

[0007] According to the above technical solution, the pushing plate is slidably connected to the mounting plate, and a spring is provided between the wiring board and the inner wall of the wiring slot, and the spring can make the connection tighter.

[0008] According to the above technical solution, a telescopic elastic rod is arranged between the U-shaped plate and the inner wall of the slide groove, and the surface of the U-shaped plate is arranged as a bevel surface. The U-shaped plate moves to squeeze the telescopic elastic rod and resets under its action, so that the U-shaped plate limits and fixes the lifting plate.

[0009] According to the above technical solution, a protective device for preventing the alarm light from being accidentally damaged is provided on the surface of the distribution box body, the protective device includes a protective frame, the protective frame is slidably mounted on the outer wall of the distribution box body, the protective device also includes a rotating disk, a scraper rod, a rotating rod, tooth block 1, tooth block 2, tooth block 3, tooth block 4 and tooth block 5, when the push plate moves downward, tooth block 1 is driven to move downward, and tooth block 1 moves downward to drive tooth block 2 to rotate, the rotating disk is rotatably mounted on the outer wall of the distribution box body, the scraper rod is fixedly mounted on the surface of the rotating disk, and the rotating rod rotates through the distribution box body The inner and outer walls of the body, the tooth block 1 is fixedly installed on the inner wall of the push plate, the tooth block 2 is fixedly installed on the side of the rotating rod close to the push plate, the tooth block 3 is fixedly installed on the side of the rotating rod away from the push plate, the tooth block 4 is fixedly installed on the inner wall of the protective frame, and the tooth block 5 is fixedly installed on the circumferential surface of the rotating disk, the tooth block 1 is meshed with the tooth block 2, the tooth block 3 is meshed with the tooth block 4, and the tooth block 3 is meshed with the tooth block 5. The protective frame moves upward to release the protection of the alarm light, which can effectively avoid the risk of the alarm light being directly exposed to the outside world and damaged in unexpected situations, thereby reducing subsequent maintenance costs.

[0010] According to the above technical solution, the inner wall of the rotating disk is rotatably connected to the alarm light, and the scraper rod is in contact with the outer wall of the alarm light. The rotation of the scraper rod can effectively remove random dirt and foreign matter on the surface of the alarm light.

[0011] According to the above technical scheme, a fire prevention device for preventing fire caused by short circuit is arranged inside the distribution box body, and the fire prevention device includes a ventilation pipe, a receiving shaft and a louver. The ventilation pipe is fixedly passed through the inner and outer walls of the distribution box body, and the receiving shaft rotates to pass through the inner and outer walls of the ventilation pipe. The louver is fixedly installed on the circumferential surface of the receiving shaft. The fire prevention device also includes a fire extinguisher, an exhaust pipe, an air valve, a receiving rod and a rotating rod. The rotating rod drives the receiving rod to rotate during the rotation of the rotating rod. The receiving rod rotates to contact and squeeze the rotating rod to rotate, and the rotation of the rotating rod drives the air valve to rotate. The fire extinguisher is fixedly installed on the inner wall of the distribution box body, and the fire extinguisher is provided with an air outlet. The exhaust pipe is fixedly installed at the air outlet of the fire extinguisher, and the air valve is arranged at the air outlet of the exhaust pipe. The receiving rod is fixedly installed on the circumferential surface of the rotating rod, and the rotating rod is fixedly installed above the air valve, so that the fire extinguishing agent inside it is discharged through the exhaust pipe, which can effectively cool down the internal equipment and extinguish the fire.

[0012] According to the above technical solution, a pressure rod is fixedly installed on the surface of the push plate, a pressure plate is slidably installed on the inner wall of the distribution box body, a blocking rod is fixedly installed on the side of the pressure plate close to the pressure rod, and the louver plate rotates to close the ventilation pipe to prevent the fire from spreading inside the distribution box body.

[0013] According to the above technical solution, the exhaust pipe slides through the upper and lower walls of the push plate, the baffle rod is located on the vertical movement trajectory of the pressure rod, and the rotating rod is located on the movement trajectory of the receiving rod. The pressure rod moves downward to contact and squeeze the baffle rod to move downward, and the receiving rod rotates to contact and squeeze the rotating rod to rotate.

[0014] The present invention provides a distribution box fault detection and alarm device. It has the following beneficial effects:

[0015] (1) The fault detection and alarm device for the distribution box can realize the rapid installation of the equipment under the action of the electric push rod, main switch, wiring slot, alarm light, wiring board, lifting plate, docking plate, detector, limit plate, U-shaped plate, push plate, spring and telescopic spring rod, so as to avoid the equipment from not working properly due to loose wiring, reduce the subsequent maintenance cost, and disconnect the line at the same time, further effectively isolate the power supply, effectively prevent the risk of accidental electric shock, and avoid injuries to workers due to accidents when performing maintenance or overhaul of electrical equipment.

[0016] (2) The fault detection alarm device for the distribution box, under the coordinated operation of the protection frame, the rotating disk, the scraper rod, the rotating rod, the gear block one, the gear block two, the gear block three, the gear block four and the gear block five, the protection frame moves upward to release the protection of the alarm light, which can effectively avoid the risk of the alarm light being directly exposed to the outside world and damaged in accidental circumstances, thereby reducing subsequent maintenance costs. At the same time, the rotation of the scraper rod can effectively remove random dirt and foreign matter on the surface of the alarm light, avoiding excessive dirt adhering to the surface of the alarm light in harsh environments, thereby reducing its flashing guidance effect, and further improving the maintenance efficiency of the equipment.

[0017] (3) The fault detection and alarm device of the distribution box, under the coordinated operation of the ventilation pipe, the receiving shaft, the louver, the fire extinguishing tank, the exhaust pipe, the gas valve, the receiving rod and the rotating rod, discharges the fire extinguishing agent in the fire extinguishing tank through the exhaust pipe, which can effectively cool down the internal equipment and extinguish the fire, avoid fire caused by short circuit due to equipment failure, and improve the stability and reliability of equipment operation. At the same time, under the coordinated operation of the pressure rod, the pressure plate and the baffle rod, the louver rotates to close the ventilation pipe, preventing the fire from spreading inside the distribution box body, thereby avoiding affecting the entire power system and the surrounding environment, reducing damage caused by high temperature or fire, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the main gate and lifting plate position structure of the present invention;

[0021] Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle;

[0022] Figure 5 This is a schematic diagram of the position structure of the push plate and the protection frame of the present invention;

[0023] Figure 6 For the present invention Figure 5 The enlarged structural diagram of part B in the middle;

[0024] Figure 7 This is a schematic diagram of the position structure of the protection frame and the rotating rod of the present invention;

[0025] Figure 8 It is a schematic diagram of the position structure of the pressure rod and the pressure plate of the present invention.

[0026] In the figure: 1. distribution box body; 2. mounting plate; 3. electric push rod; 4. main switch; 41. wiring slot; 5. alarm light; 6. wiring board; 7. lifting plate; 8. docking plate; 9. detector; 10. limit plate; 11. U-shaped plate; 12. push plate; 13. spring; 14. telescopic spring rod; 151. protection frame; 152. rotating disk; 153. scraper rod; 154. rotating rod; 155. gear block one; 156. gear block two; 157. gear block three; 158. gear block four; 159. gear block five; 161. ventilation pipe; 162. receiving shaft; 163. shutter plate; 164. fire extinguisher; 165. exhaust pipe; 166. air valve; 167. receiving rod; 168. rotating rod; 169. pressure rod; 1610. pressure plate; 1611. stop rod. 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] See also Figure 1-Figure 8, one embodiment of the present invention is: a distribution box fault detection alarm device, including a distribution box body 1, a mounting plate 2 is fixedly installed inside the distribution box body 1, an electric push rod 3 is fixedly installed on the surface of the mounting plate 2, a main gate 4 is fixedly installed on the surface of the mounting plate 2, a wiring groove 41 is opened below the main gate 4, and an alarm light 5 is fixedly installed on the outer wall of the distribution box body 1, and also includes: a disconnection device, the disconnection device includes a wiring board 6, a lifting plate 7, a docking plate 8, a detector 9, a limit plate 10, a U-shaped plate 11 and a push plate 12, the output end of the electric push rod 3 moves downward to drive the push plate 12 to move downward, the push plate 12 moves downward to contact and squeeze the U-shaped plate 11 to move, the wiring board 6 is slidably installed inside the wiring groove 41, and the lifting plate 7 is slidably installed on the mounting plate 2, the docking plate 8 is fixedly mounted on the side of the lifting plate 7 close to the main gate 4, the detector 9 is fixedly mounted on the surface of the lifting plate 7, the limit plate 10 is fixedly mounted on the side of the lifting plate 7 away from the main gate 4, a slide groove is opened on the surface of the mounting plate 2, the U-shaped plate 11 is slidably mounted inside the slide groove, and the push plate 12 is fixedly mounted on the output end of the electric push rod 3. A detection module and a control module are arranged inside the detector 9, the control module is electrically connected to the electric push rod 3, and the control module is electrically connected to the alarm light 5. The docking plate 8 moves downward to drive the external wiring to break away from the contact with the terminal board 6, thereby realizing the disconnection of the line, further effectively isolating the power supply, effectively preventing the risk of accidental electric shock, and avoiding injuries to staff due to accidents during maintenance or overhaul of electrical equipment.

[0029] The push plate 12 is slidably connected to the mounting plate 2 , and a spring 13 is provided between the wiring board 6 and the inner wall of the wiring slot 41 , so that the spring 13 can make the connection more closely.

[0030] A telescopic elastic rod 14 is arranged between the U-shaped plate 11 and the inner wall of the slide groove. The surface of the U-shaped plate 11 is arranged as a bevel. The U-shaped plate 11 moves to squeeze the telescopic elastic rod 14 and resets under its action, so that the U-shaped plate 11 limits and fixes the lifting plate 7, thereby fixing the docking plate 8 and the terminal board 6, avoiding loose wiring causing the equipment to fail to work normally, and reducing subsequent maintenance costs.

[0031] When the present embodiment is working: during installation, the external wire is fixedly installed inside the docking plate 8, and then the lifting plate 7 is moved upward. The lifting plate 7 moves upward to drive the docking plate 8 to move upward. The docking plate 8 moves upward to drive the external wire to contact and squeeze the terminal board 6 to realize the wiring work of the equipment. At this time, the lifting plate 7 moves upward to contact and squeeze the U-shaped plate 11 to move in the direction close to the inside of the slide slot. The U-shaped plate 11 moves to squeeze the telescopic elastic rod 14 and resets under its action, so that the U-shaped plate 11 limits and fixes the lifting plate 7, realizes the fixation of the docking plate 8 and the terminal board 6, avoids the loose wiring causing the equipment to fail to work normally, and reduces the subsequent maintenance cost. When the detector 9 detects that the temperature at the connection is abnormal due to equipment failure, the control module will be used to start the electric The push rod 3 is moved downward, and the output end of the electric push rod 3 moves downward, driving the push plate 12 to move downward, and the push plate 12 moves downward to contact and squeeze the U-shaped plate 11 to move toward the inside of the slide slot, and the U-shaped plate 11 moves to release the limit on the lifting plate 7, and the push plate 12 continues to move downward to drive the lifting plate 7 to move downward, and the lifting plate 7 moves downward to drive the limiting plate 10 to move downward, and the limiting plate 10 moves downward to close the gate of the main gate 4. At the same time, the lifting plate 7 moves downward to drive the docking plate 8 to move downward, and the docking plate 8 moves downward to drive the external wiring to break away from the contact with the terminal board 6, thereby realizing the disconnection of the line, further effectively isolating the power supply, and effectively preventing the risk of accidental electric shock, and avoiding injuries to staff due to accidents during maintenance or overhaul of electrical equipment.

[0032] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, a protective device for preventing the alarm light 5 from being accidentally damaged is provided on the surface of the distribution box body 1, and the protective device includes a protective frame 151, and the protective frame 151 is slidably mounted on the outer wall of the distribution box body 1, and the protective device also includes a rotating disk 152, a scraper rod 153, a rotating rod 154, a tooth block 155, a tooth block 2 156, a tooth block 3 157, a tooth block 4 158 and a tooth block 5 159. When the push plate 12 moves downward, the tooth block 155 is driven to move downward, and the tooth block 155 moves downward to drive the tooth block 2 156 to rotate, the rotating disk 152 is rotatably mounted on the outer wall of the distribution box body 1, the scraper rod 153 is fixedly mounted on the surface of the rotating disk 152, and the rotating rod 154 The inner and outer walls of the distribution box body 1 are rotated to penetrate, tooth block 155 is fixedly installed on the inner wall of the push plate 12, tooth block 2 156 is fixedly installed on the side of the rotating rod 154 close to the push plate 12, tooth block 3 157 is fixedly installed on the side of the rotating rod 154 away from the push plate 12, tooth block 4 158 is fixedly installed on the inner wall of the protective frame 151, tooth block 5 159 is fixedly installed on the circumferential surface of the rotating disk 152, tooth block 155 is meshed with tooth block 2 156, tooth block 3 157 is meshed with tooth block 4 158, tooth block 3 157 is meshed with tooth block 5 159, and the protective frame 151 moves upward to release the protection of the alarm light 5, which can effectively avoid the risk of the alarm light 5 being directly exposed to the outside world and damaged in accidental circumstances, thereby reducing subsequent maintenance costs.

[0033] The inner wall of the rotating disk 152 is rotatably connected to the alarm light 5, and the scraper rod 153 is in contact with the outer wall of the alarm light 5. The rotation of the scraper rod 153 can effectively remove random dirt and foreign matter on the surface of the alarm light 5, avoiding excessive dirt adhering to the surface of the alarm light 5 in harsh environments, thereby reducing its flashing guidance effect, and further improving the maintenance efficiency of the equipment.

[0034] The interior of the distribution box body 1 is provided with a fire prevention device for preventing fire caused by short circuit. The fire prevention device includes a ventilation pipe 161, a receiving shaft 162 and a louver 163. The ventilation pipe 161 is fixedly passed through the inner and outer walls of the distribution box body 1, and the receiving shaft 162 rotates to pass through the inner and outer walls of the ventilation pipe 161. The louver 163 is fixedly installed on the circumferential surface of the receiving shaft 162. The fire prevention device also includes a fire extinguisher 164, an exhaust pipe 165, an air valve 166, a receiving rod 167 and a rotating rod 168. The rotating rod 154 drives the receiving rod 167 to rotate during the rotation process, and the receiving rod 167 rotates to contact and squeeze the rotating rod 168 to rotate. The rotating rod 168 rotates to drive the air valve 166 to rotate, the fire extinguishing tank 164 is fixedly installed on the inner wall of the distribution box body 1, the fire extinguishing tank 164 is provided with an outlet, the exhaust pipe 165 is fixedly installed at the outlet of the fire extinguishing tank 164, the air valve 166 is arranged at the outlet of the exhaust pipe 165, the receiving rod 167 is fixedly installed on the circumferential surface of the rotating rod 154, the rotating rod 168 is fixedly installed above the air valve 166, so that the fire extinguishing agent inside is discharged through the exhaust pipe 165, which can effectively cool down the internal equipment and extinguish the fire, avoid the fire caused by the short circuit due to the equipment failure, and improve the stability and reliability of the equipment operation.

[0035] A pressure rod 169 is fixedly installed on the surface of the push plate 12, and a pressure plate 1610 is slidably installed on the inner wall of the distribution box body 1. A blocking rod 1611 is fixedly installed on the side of the pressure plate 1610 close to the pressure rod 169. The louver 163 rotates to close the ventilation pipe 161 to prevent the fire from spreading inside the distribution box body 1, thereby avoiding affecting the entire power system and the surrounding environment, reducing damage caused by high temperature or fire, and extending the service life of the equipment.

[0036] The exhaust pipe 165 slides through the upper and lower walls of the push plate 12, the blocking rod 1611 is located on the vertical movement trajectory of the pressure rod 169, and the rotating rod 168 is located on the movement trajectory of the receiving rod 167. The pressure rod 169 moves downward to contact and squeeze the blocking rod 1611 to move downward, and the receiving rod 167 rotates to contact and squeeze the rotating rod 168 to rotate.

[0037] When the present embodiment is working, when the push plate 12 moves downward, it drives the tooth block 155 to move downward, the tooth block 155 moves downward and drives the tooth block 2 156 to rotate, the tooth block 2 156 rotates and drives the rotating rod 154 to rotate, the rotating rod 154 rotates and drives the tooth block 3 157 to rotate, the tooth block 3 157 rotates and drives the tooth block 4 158 to move upward, the tooth block 4 158 moves upward and drives the protective frame 151 to move upward, the protective frame 151 moves upward to release the protection of the alarm light 5, which can effectively prevent the alarm light 5 from being directly exposed to the outside world and damaged in an accident. The risk of damage can be reduced, and the subsequent maintenance cost can be reduced. At this time, the warning light 5 flashes to guide the staff to the target, thereby improving the maintenance efficiency of the equipment. At the same time, the rotation of gear block three 157 drives gear block five 159 to rotate, and the rotation of gear block five 159 drives the rotating disk 152 to rotate, and the rotation of rotating disk 152 drives the scraper rod 153 to rotate. The rotation of scraper rod 153 can effectively remove random dirt and foreign matter on the surface of the warning light 5, avoid excessive dirt on the surface of the warning light 5 in harsh environments, which will lead to a reduction in its flashing guidance effect, and further improve the maintenance efficiency of the equipment.

[0038] The rotating rod 154 rotates and drives the receiving rod 167 to rotate. The receiving rod 167 rotates to contact and squeeze the rotating rod 168 to rotate. The rotating rod 168 rotates and drives the gas valve 166 to rotate. The gas valve 166 rotates to open the gas outlet of the fire extinguishing tank 164, so that the fire extinguishing agent inside is discharged through the exhaust pipe 165, which can effectively cool down and extinguish the internal equipment, avoid fire caused by short circuit due to equipment failure, and improve the stability and reliability of the equipment. At the same time, the push plate 12 moves downward to drive the pressure rod 169 to move downward, and the pressure rod 169 moves downward. The rod 169 moves downward to contact and squeeze the blocking rod 1611 to move downward, the blocking rod 1611 moves downward to drive the pressure plate 1610 to move downward, the pressure plate 1610 moves downward to contact and drive the receiving shaft 162 to rotate, the receiving shaft 162 rotates to drive the louver 163 to rotate, the louver 163 rotates to close the ventilation pipe 161, prevent the fire from spreading inside the distribution box body 1, thereby avoiding affecting the entire power system and the surrounding environment, reducing damage caused by high temperature or fire, and extending the service life of the equipment.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distribution box fault detection alarm device, comprising a distribution box body (1), a mounting plate (2) fixedly mounted inside the distribution box body (1), an electric push rod (3) fixedly mounted on the surface of the mounting plate (2), a main switch (4) fixedly mounted on the surface of the mounting plate (2), a wiring slot (41) being provided below the main switch (4), and an alarm light (5) fixedly mounted on the outer wall of the distribution box body (1), characterized in that: Also includes: A disconnecting device, the disconnecting device comprising a wiring board (6), a lifting plate (7), a docking plate (8), a detector (9), a limit plate (10), a U-shaped plate (11) and a push plate (12), the wiring board (6) being slidably mounted inside a wiring slot (41), the lifting plate (7) being slidably mounted on a surface of a mounting plate (2), the docking plate (8) being fixedly mounted on a side of the lifting plate (7) close to a main gate (4), the detector (9) being fixedly mounted on a surface of the lifting plate (7), the limit plate (10) being fixedly mounted on a side of the lifting plate (7) away from the main gate (4), a sliding groove being provided on the surface of the mounting plate (2), the U-shaped plate (11) being slidably mounted inside the sliding groove, the push plate (12) being fixedly mounted on an output end of an electric push rod (3), a detection module and a control module being arranged inside the detector (9), the control module being electrically connected to the electric push rod (3), and the control module being electrically connected to an alarm light (5); Wherein, a protective device for preventing the alarm light (5) from being accidentally damaged is provided on the surface of the distribution box body (1), and the protective device comprises a protective frame (151), and the protective frame (151) is slidably mounted on the outer wall of the distribution box body (1); The distribution box body (1) is provided with a fire prevention device for preventing fire caused by short circuit inside, the fire prevention device comprising a ventilation pipe (161), a receiving shaft (162) and a louver (163), the ventilation pipe (161) is fixedly passed through the inner and outer walls of the distribution box body (1), the receiving shaft (162) is rotatably passed through the inner and outer walls of the ventilation pipe (161), and the louver (163) is fixedly mounted on the circumferential surface of the receiving shaft (162); The push plate (12) is slidably connected to the mounting plate (2), and a spring (13) is provided between the wiring board (6) and the inner wall of the wiring slot (41); A telescopic elastic rod (14) is provided between the U-shaped plate (11) and the inner wall of the slide groove, and the surface of the U-shaped plate (11) is provided as a beveled surface; The protective device further comprises a rotating disk (152), a scraper rod (153), a rotating rod (154), a tooth block one (155), a tooth block two (156), a tooth block three (157), a tooth block four (158) and a tooth block five (159); the rotating disk (152) is rotatably mounted on the outer wall of the distribution box body (1); the scraper rod (153) is fixedly mounted on the surface of the rotating disk (152); the rotating rod (154) rotatably penetrates the inner and outer walls of the distribution box body (1); and the tooth block one (155) is fixedly mounted on the inner wall of the push plate (12); The tooth block 2 (156) is fixedly mounted on a side of the rotating rod (154) close to the pushing plate (12), the tooth block 3 (157) is fixedly mounted on a side of the rotating rod (154) away from the pushing plate (12), the tooth block 4 (158) is fixedly mounted on the inner wall of the protective frame (151), the tooth block 5 (159) is fixedly mounted on the circumferential surface of the rotating disk (152), the tooth block 1 (155) is meshed with the tooth block 2 (156), the tooth block 3 (157) is meshed with the tooth block 4 (158), and the tooth block 3 (157) is meshed with the tooth block 5 (159).

2. A distribution box fault detection and alarm device according to claim 1, characterized in that: The inner wall of the rotating disk (152) is rotatably connected to the warning light (5), and the scraper rod (153) is in contact with the outer wall of the warning light (5).

3. A distribution box fault detection and alarm device according to claim 2, characterized in that: The fire protection device further comprises a fire extinguishing tank (164), an exhaust pipe (165), an air valve (166), a receiving rod (167) and a rotating rod (168); the fire extinguishing tank (164) is fixedly mounted on the inner wall of the distribution box body (1); and the fire extinguishing tank (164) is provided with an air outlet.

4. A distribution box fault detection and alarm device according to claim 3, characterized in that: The exhaust pipe (165) is fixedly mounted on the air outlet of the fire extinguisher tank (164); the air valve (166) is arranged at the air outlet of the exhaust pipe (165); the receiving rod (167) is fixedly mounted on the circumferential surface of the rotating rod (154); and the rotating rod (168) is fixedly mounted above the air valve (166).

5. A distribution box fault detection and alarm device according to claim 4, characterized in that: A pressure rod (169) is fixedly mounted on the surface of the push plate (12), a pressure plate (1610) is slidably mounted on the inner wall of the distribution box body (1), and a blocking rod (1611) is fixedly mounted on a side of the pressure plate (1610) close to the pressure rod (169).

6. A distribution box fault detection and alarm device according to claim 5, characterized in that: The exhaust pipe (165) slides through the upper and lower walls of the push plate (12); the blocking rod (1611) is located on the vertical movement track of the pressure rod (169); and the rotating rod (168) is located on the movement track of the receiving rod (167).

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