A distribution box with emergency circuit protection function

Abstract

The present invention discloses a distribution box with emergency circuit protection function, including a distribution box body and a master control switch. The distribution box body is provided with a leakage detection mechanism for detecting leakage current of circuit elements inside the distribution box body. The surface of the mounting plate is also fixedly provided with a leakage protection mechanism that can actively push the knife switch of the master control switch when the circuit element leaks. The leakage detection mechanism includes a leakage current sensor, a temperature sensor and a processor, and the leakage current sensor and the temperature sensor are both electrically connected to the signal input terminal of the processor. When a circuit malfunctions and causes a short circuit or power failure, the electric telescopic rod and the electromagnet will not work properly. The knife switch of the master control switch is pressed down by a ceramic pressing rod to cut off the circuit, thereby realizing emergency circuit protection. Compared with the prior art, the present invention is provided with multiple trigger mechanisms, which can cut off the circuit in a variety of situations to realize emergency circuit protection, and is therefore safer and more reliable.

Description

Technical Field

[0001] The invention relates to the technical field of distribution boxes, in particular to a distribution box with an emergency circuit protection function. Background Art

[0002] A distribution box is a device specifically used to distribute electrical energy and is widely used in various buildings and industrial sites. It ensures the safe and efficient operation of the power system by distributing electrical energy to various electrical devices or circuits. A distribution box usually contains a variety of electrical components such as switches, circuit breakers, fuses, contactors, relays, capacitors, etc. These components work together to achieve the distribution, control, protection and monitoring of electrical energy.

[0003] Through searching, it was found that CN118174151A discloses a distribution box with emergency circuit protection function. A master control switch for controlling the main circuit is installed inside the distribution box. The leakage current signal of the circuit inside the distribution box is sensed by the leakage detector. When leakage current appears in the detected circuit, the magnetic field changes to generate a corresponding voltage signal in the induction coil, and the driving component and the toggle component are used to pull down the knife switch at the master control switch to achieve emergency circuit protection.

[0004] However, in actual use, once a leakage short circuit occurs in the circuit components in the distribution box, the servo motor in the leakage protection mechanism may not be able to operate normally due to short circuit, power failure, etc., so that the knife switch of the master control switch cannot be turned in time, making it difficult to achieve emergency circuit protection;

[0005] Moreover, when leakage fault occurs in the internal components of the distribution box, the staff cannot receive the message in time, which greatly affects the circuit maintenance work. Therefore, we need a distribution box with emergency circuit protection function. Summary of the invention

[0006] The object of the present invention is to provide a distribution box with emergency circuit protection function to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a distribution box with emergency circuit protection function, comprising a distribution box body and a master control switch, wherein a leakage detection mechanism for detecting leakage current of circuit elements inside the distribution box body is arranged inside the distribution box body, a plurality of mounting plates are detachably mounted from top to bottom inside the distribution box body, the master control switch is fixedly mounted on the surface of the uppermost mounting plate, and a leakage protection mechanism for a knife switch that can actively push the master control switch when the circuit element leaks is also fixedly mounted on the surface of the mounting plate;

[0008] The leakage detection mechanism includes a leakage current sensor, a temperature sensor and a processor, the leakage current sensor is fixedly arranged on the outside of the circuit to be tested, the temperature sensor and the processor are fixedly connected to the inner wall of the distribution box body, and the leakage current sensor and the temperature sensor are electrically connected to the signal input terminal of the processor;

[0009] The leakage protection mechanism includes a first convex plate, a second convex plate, an electric telescopic rod, two limit seats, two movable support plates, an electromagnet, an iron plate, two counterweights and a ceramic pressing rod. The two limit seats are fixedly connected to the surface of the mounting plate, the two movable support plates are respectively slidably connected to the inner sides of the two limit seats, the two counterweights are respectively fixedly connected to the lower surfaces of the two movable support plates, the ceramic pressing rod is fixedly connected between the two movable support plates, and the ceramic pressing rod is located above the knife switch of the master control switch, the iron plate is fixedly connected to the upper surface of the right movable support plate, the first convex plate and the second convex plate are both fixedly connected to the surface of the mounting plate, the electric telescopic rod is fixedly connected to the lower surface of the first convex plate and corresponds to the upper surface of the left movable support plate, and the electric telescopic rod is electrically connected to the signal output end of the processor, and the electromagnet is fixedly connected to the lower surface of the second convex plate and corresponds to the upper and lower parts of the iron plate.

[0010] Preferably, two left-right symmetrical vertical plates are fixedly connected inside the distribution box body, a slide groove is opened on the surface of the vertical plate, a slider is slidably connected in the slide groove, anti-slip tooth plates are fixedly installed on the back of both ends of the mounting plate by bolts, and two sets of tension springs and ordinary telescopic rods are fixedly connected between the slider and the anti-slip tooth plate, and the tension spring is sleeved on the outside of the ordinary telescopic rod, and the surface of the vertical plate is provided with fixed teeth corresponding to the anti-slip tooth plates.

[0011] Preferably, a T-shaped slide groove is provided on the inner side of the limit seat, and rollers located on the inner side of the T-shaped slide groove are rotatably connected to both sides of the movable support plate.

[0012] Preferably, the distribution box body includes a top box, a middle shell and a bottom bellows, the top box is fixedly connected to the upper end of the middle shell, the bottom bellows is fixedly connected to the lower end of the middle shell, the processor is fixedly installed on the inner side of the top box, and the temperature sensor is located on the inner side of the middle shell and fixedly installed on the lower surface of the top box.

[0013] Preferably, a heat dissipation mechanism extending into the middle shell is provided in the bottom bellows, and ventilation windows and rain shields are provided on both sides of the upper end of the middle shell and both sides of the bottom bellows, and a dustproof net is fixed on the inner side of the ventilation window by bolts.

[0014] Preferably, alarms are fixedly connected to both sides of the middle shell, and the alarms are electrically connected to the signal output end of the processor.

[0015] Preferably, a wireless signal transceiver and a backup power supply are fixedly connected to the inner side of the top box, and the antenna of the wireless signal transceiver extends to the outside of the top box. The electric telescopic rod, processor, wireless signal transceiver and alarm are all electrically connected to the backup power supply. The wireless signal transceiver can send signals to the staff's mobile phone terminal and can also receive signals sent by the staff's mobile phone terminal.

[0016] Preferably, the heat dissipation mechanism includes a blower and an air outlet pipe, the blower is fixedly installed on the inner side of the bottom bellows, the air outlet pipe is fixedly installed on the inner side of the middle shell, and the air outlet pipe is fixedly connected to the output end of the blower, and a plurality of air holes facing the circuit elements are opened on the surface of the air outlet pipe.

[0017] Preferably, the inner side of the air outlet duct is fixedly connected to an inner tube via a support block, the top of the inner tube is fixedly connected to a wind shield ring fixedly connected to the inner wall of the air outlet duct, a DC generator is arranged on the inner side of the top box, the input end of the DC generator is rotatably connected to fan blades located directly above the inner tube, and the output end of the DC generator is electrically connected to a backup power supply.

[0018] Preferably, the blower is electrically connected to a signal output terminal of the processor.

[0019] Beneficial Effects

[0020] The present invention provides a distribution box with emergency circuit protection function, which has the following beneficial effects:

[0021] 1. The distribution box with emergency circuit protection function is provided with a leakage detection mechanism and a leakage protection mechanism. The leakage current sensor can be used to detect whether the circuit under test has leakage, and the processor can be used to open the electric telescopic rod to achieve the goal of cutting off the circuit; or the temperature sensor can be used to detect whether the temperature inside the distribution box body is too high, and the processor can be used to open the electric telescopic rod to achieve the goal of cutting off the circuit; when a circuit failure occurs, resulting in a short circuit or power failure, the electric telescopic rod and the electromagnet will not work normally, and the ceramic pressing rod will press down the knife switch of the master control switch to cut off the circuit, thereby realizing emergency circuit protection. Compared with the prior art, the present invention is provided with multiple trigger mechanisms, which can cut off the circuit in various situations to achieve emergency circuit protection, and is therefore safer and more reliable.

[0022] 2. The distribution box with emergency circuit protection function is provided with a vertical plate, a slider, an anti-skid tooth plate, a tension spring, an ordinary telescopic rod and a fixed tooth. By pulling the mounting plate outward, the tension spring and the ordinary telescopic rod can be extended, so that the anti-skid tooth plate is separated from the fixed tooth. The slider slides in the slide groove of the vertical plate, so that the height of the mounting plate can be quickly adjusted, which provides convenience for the installation of circuit components. The tension of the tension spring is used to mesh with the fixed tooth and the anti-skid tooth plate, so that the anti-skid tooth plate and the vertical plate can be relatively fixed, so that the mounting plate can be fixed at a specified height.

[0023] 3. The distribution box with emergency circuit protection function can make the electric telescopic rod, processor, wireless signal transceiver and alarm continue to work for a period of time in the case of power failure by setting a backup power supply, thereby improving the adaptability of the distribution box in emergency situations. By setting a wireless signal transceiver, the leakage signal and high temperature signal collected by the processor can be sent to the staff's mobile phone terminal through the wireless signal transceiver, so that the staff can receive the message in time to avoid the circuit maintenance work being affected; at the same time, the staff can also send signals to the wireless signal transceiver through the mobile phone terminal, so as to realize remote control of the equipment electrically connected to the output end of the controller, further improving the management convenience.

[0024] 4. The distribution box with emergency circuit protection function can cool down the circuit components by using the blower to blow air outwards through the air holes of the air outlet pipe, thereby facilitating the normal operation of the circuit components. The inner tube is supported by the wind shield ring, and the inner tube is used to blow air to the fan blades, which can drive the fan blades to rotate, thereby enabling the DC generator to work and generate electricity, thereby realizing the charging of the backup power supply, realizing energy recycling, and facilitating the saving of electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a distribution box with emergency circuit protection function proposed by the present invention;

[0026] Figure 2 A schematic diagram of the internal structure of a distribution box main body of a distribution box with an emergency circuit protection function proposed by the present invention;

[0027] Figure 3 A schematic diagram of the three-dimensional structure of a leakage protection mechanism of a distribution box with an emergency circuit protection function proposed by the present invention;

[0028] Figure 4 This is a schematic cross-sectional structure diagram of a limit seat of a distribution box with an emergency circuit protection function proposed by the present invention;

[0029] Figure 5This is a schematic diagram of the structure of a distribution box with emergency circuit protection function proposed by the present invention after the vertical plate and the slider are separated;

[0030] Figure 6 A distribution box with emergency circuit protection function proposed by the present invention Figure 5 A is a schematic diagram of the enlarged structure;

[0031] Figure 7 The present invention is a schematic cross-sectional structural diagram of a heat dissipation mechanism of a distribution box with an emergency circuit protection function.

[0032] In the figure: 1. Distribution box body; 2. Master switch; 3. Leakage detection mechanism; 4. Mounting plate; 5. Leakage protection mechanism; 6. Leakage current sensor; 7. Temperature sensor; 8. Processor; 9. First convex plate; 10. Second convex plate; 11. Electric telescopic rod; 12. Limit seat; 13. Movable support plate; 14. Electromagnet; 15. Iron plate; 16. Counterweight; 17. Ceramic pressing rod; 18. Vertical plate; 19. Slider; 20. Anti- Sliding tooth plate; 21. tension spring; 22. ordinary telescopic rod; 23. fixed tooth; 24. roller; 25. top box; 26. middle shell; 27. bottom bellows; 28. ventilation window; 29. ​​rain shield; 30. dust net; 31. alarm; 32. wireless signal transceiver; 33. backup power supply; 34. blower; 35. air outlet pipe; 36. air hole; 37. inner pipe; 38. wind shield ring; 39. DC generator; 40. fan blade. DETAILED DESCRIPTION

[0033] 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.

[0034] Example 1, please refer to Figure 1-6 The present invention provides a technical solution: a distribution box with emergency circuit protection function, comprising a distribution box body 1 and a master switch 2, wherein a leakage detection mechanism 3 for detecting leakage current of circuit elements inside the distribution box body 1 is arranged inside the distribution box body 1, and a plurality of mounting plates 4 are detachably mounted from top to bottom inside the distribution box body 1, the master switch 2 is fixedly mounted on the surface of the uppermost mounting plate 4, and a leakage protection mechanism 5 capable of actively pushing the knife switch of the master switch 2 when the circuit elements leak is also fixedly mounted on the surface of the mounting plate 4;

[0035] The leakage detection mechanism 3 includes a leakage current sensor 6, a temperature sensor 7 and a processor 8. The model of the leakage current sensor 6 is: DP-007AD, the model of the temperature sensor 7 is: PT100 platinum thermal resistor, the leakage current sensor 6 is fixedly arranged on the outside of the circuit under test, the temperature sensor 7 and the processor 8 are both fixedly connected to the inner wall of the distribution box body 1, and the leakage current sensor 6 and the temperature sensor 7 are both electrically connected to the signal input terminal of the processor 8;

[0036] The leakage protection mechanism 5 includes a first convex plate 9, a second convex plate 10, an electric telescopic rod 11, two limit seats 12, two movable support plates 13, an electromagnet 14, an iron plate 15, two counterweights 16 and a ceramic pressing rod 17. The two limit seats 12 are fixedly connected to the surface of the mounting plate 4, the two movable support plates 13 are respectively slidably connected to the inner sides of the two limit seats 12, the two counterweights 16 are respectively fixedly connected to the lower surfaces of the two movable support plates 13, the ceramic pressing rod 17 is fixedly connected between the two movable support plates 13, and the ceramic pressing rod 17 is located at the main control switch 2. Above the knife switch, the ceramic material of the ceramic pressing rod 17 can play a good insulating effect, the iron plate 15 is fixedly connected to the upper surface of the right movable support plate 13, the first convex plate 9 and the second convex plate 10 are fixedly connected to the surface of the mounting plate 4, the electric telescopic rod 11 is fixedly connected to the lower surface of the first convex plate 9 and corresponds to the upper surface of the left movable support plate 13, and the electric telescopic rod 11 is electrically connected to the signal output end of the processor 8, the electromagnet 14 is fixedly connected to the lower surface of the second convex plate 10 and corresponds to the upper and lower sides of the iron plate 15, and the leakage detection mechanism 3 is set And the leakage protection mechanism 5, the leakage current sensor 6 can be used to detect whether the tested circuit has leakage. When the circuit leakage is detected, the electric telescopic rod 11 can be turned on by the processor 8, and the electric telescopic rod 11 is extended to push the movable support plate 13, so that the ceramic pressing rod 17 can press down the knife switch of the main control switch 2, thereby achieving the goal of cutting off the circuit; or the temperature sensor 7 can be used to detect whether the temperature in the distribution box body 1 is too high. When the temperature is too high, it may be caused by a short circuit. At this time, the electric telescopic rod 11 will also be turned on by the processor 8, and the circuit can be cut off in the same way. The goal of the circuit; when a circuit malfunctions and causes a short circuit or power outage, the electric telescopic rod 11 and the electromagnet 14 will not be able to work normally. At this time, after the iron plate 15 loses the suction of the electromagnet 14, the movable support plate 13 will be driven to slide downward in the limit seat 12 under the action of the gravity of the counterweight block 16. The ceramic pressing rod 17 presses down the knife switch of the main control switch 2 to cut off the circuit, thereby realizing emergency circuit protection. Compared with the prior art, the present invention is provided with a multiple trigger mechanism, which can cut off the circuit in various situations to realize emergency circuit protection, and is therefore safer and more reliable.

[0037] The inside of the distribution box body 1 is fixedly connected with two symmetrical vertical plates 18, and the surface of the vertical plate 18 is provided with a slide groove, and a slider 19 is slidably connected in the slide groove. The back of both ends of the mounting plate 4 is fixedly installed with anti-skid tooth plates 20 by bolts, and two groups of tension springs 21 and ordinary telescopic rods 22 are fixedly connected between the slider 19 and the anti-skid tooth plate 20, and the tension spring 21 is sleeved on the outside of the ordinary telescopic rod 22. The surface of the vertical plate 18 is provided with fixed teeth 23 corresponding to the anti-skid tooth plate 20. By setting the vertical plate 18, the slider 19, and the anti-skid tooth plate 2 0, tension spring 21, ordinary telescopic rod 22 and fixed teeth 23, by pulling the mounting plate 4 outward, the tension spring 21 and the ordinary telescopic rod 22 can be extended, so that the anti-skid tooth plate 20 is separated from the fixed teeth 23, and the slider 19 is used to slide in the slide groove of the vertical plate 18, which can facilitate the rapid adjustment of the height of the mounting plate 4, providing convenience for the installation of circuit components; using the tension of the tension spring 21, the fixed teeth 23 and the anti-skid tooth plate 20 are engaged with each other, so that the anti-skid tooth plate 20 and the vertical plate 18 can be relatively fixed, thereby facilitating the fixing of the mounting plate 4 at a specified height.

[0038] A T-shaped groove is provided on the inner side of the limit seat 12, and both sides of the movable support plate 13 are rotatably connected to rollers 24 located on the inner side of the T-shaped groove. By setting the T-shaped groove and the roller 24 and utilizing the roller 24 to roll in the T-shaped groove, the friction force when the movable support plate 13 moves up and down can be reduced, thereby improving the service life of the movable support plate 13.

[0039] Example 2, please refer to Figure 1-7 , including Example 1, and on the basis of Example 1, the present invention provides a technical solution: the distribution box body 1 includes a top box 25, a middle shell 26 and a bottom bellows 27, the top box 25 is fixedly connected to the upper end of the middle shell 26, the bottom bellows 27 is fixedly connected to the lower end of the middle shell 26, the processor 8 is fixedly installed on the inner side of the top box 25, the temperature sensor 7 is located on the inner side of the middle shell 26 and is fixedly installed on the lower surface of the top box 25, and by dividing the distribution box body 1 into three boxes, it is possible to effectively avoid mutual interference between components in each box, thereby providing convenience for the stable operation of the components.

[0040] A heat dissipation mechanism extending into the middle shell 26 is provided in the bottom bellows 27, and ventilation windows 28 and rain shields 29 are provided on both sides of the upper end of the middle shell 26 and both sides of the bottom bellows 27. A dustproof net 30 is fixed on the inner side of the ventilation window 28 by bolts. By providing the rain shield 29, rainwater can be effectively prevented from entering the middle shell 26 and the bottom bellows 27 through the ventilation window 28; by providing the dustproof net 30, dust can be effectively prevented from entering the middle shell 26 and the bottom bellows 27 through the ventilation window 28.

[0041] An alarm 31 is fixedly connected to both sides of the middle shell 26, and the alarm 31 is electrically connected to the signal output end of the processor 8. By setting the alarm 31, when the leakage current sensor 6 detects leakage in the circuit under test, or when the temperature sensor 7 monitors that the internal temperature of the distribution box body 1 is higher than the set threshold, the alarm 31 can be turned on by the processor 8, thereby alerting nearby staff.

[0042] A wireless signal transceiver 32 and a backup power supply 33 are also fixedly connected to the inner side of the top box 25, wherein the model of the wireless signal transceiver 32 is: ZyXEL NWD2105-HP, and the antenna of the wireless signal transceiver 32 extends to the outside of the top box 25, the electric telescopic rod 11, the processor 8, the wireless signal transceiver 32 and the alarm 31 are all electrically connected to the backup power supply 33, the wireless signal transceiver 32 can send signals to the staff's mobile phone terminal, and can also receive signals sent by the staff's mobile phone terminal. By setting up the backup power supply 33, the electric telescopic rod 11, the processor 8, the wireless signal transceiver 32 and the alarm 31 can continue to work for a period of time in the event of a power outage, thereby improving the adaptability of the distribution box in emergency situations, and by setting up the wireless signal transceiver 32, the leakage signal and high temperature signal collected by the processor 8 can be transmitted to the staff's mobile phone terminal through the wireless signal transceiver 32, so that the staff can receive messages in time to avoid being affected by the circuit maintenance work.

[0043] At the same time, the staff can also send signals to the wireless signal transceiver 32 through the mobile phone terminal, so as to remotely control the equipment electrically connected to the output end of the controller, further improving the management convenience.

[0044] The heat dissipation mechanism includes a blower 34 and an air outlet pipe 35. The blower 34 is fixedly installed on the inner side of the bottom bellows 27, and the air outlet pipe 35 is fixedly installed on the inner side of the middle shell 26. The air outlet pipe 35 is fixedly connected to the output end of the blower 34. A plurality of air holes 36 facing the circuit elements are provided on the surface of the air outlet pipe 35. When the blower 34 works and air is blown outward through the air holes 36 of the air outlet pipe 35, the circuit elements can be cooled, thereby facilitating the normal operation of the circuit elements.

[0045] The blower 34 is electrically connected to the signal output end of the processor 8. The temperature sensor 7, the blower 34 and the processor 8 cooperate with each other. When the temperature sensor 7 detects that the temperature inside the distribution box is high, the blower 34 can be controlled by the processor 8, thereby increasing the power of the blower 34; when the temperature inside the distribution box is low, the blower 34 can be controlled by the processor 8, thereby reducing the power of the blower 34, thereby realizing intelligent control of the air output of the blower 34, which not only saves electricity, but also helps to maintain a stable temperature inside the distribution box body.

[0046] Example 3, please refer to Figure 2 and Figure 7 , including Example 2, and on the basis of Example 2, the present invention provides a technical solution: the inner side of the air outlet pipe 35 is fixedly connected with an inner pipe 37 through a support block, the top of the inner pipe 37 is fixedly connected with a wind shield ring 38 fixedly connected to the inner wall of the air outlet pipe 35, and a DC generator 39 is arranged on the inner side of the top box 25, the input end of the DC generator 39 is rotatably connected with a fan blade 40 located directly above the inner pipe 37, and the output end of the DC generator 39 is electrically connected to the backup power supply 33, the inner pipe 37 is supported by the wind shield ring 38, and the inner pipe 37 is used to blow air to the fan blade 40, which can drive the fan blade 40 to rotate, so that the DC generator 39 can work to generate electricity, thereby realizing the charging of the backup power supply 33, realizing energy recycling, and being beneficial to saving electric energy.

[0047] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the case of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0048] Finally: 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, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A distribution box with emergency circuit protection function, comprising a distribution box body (1) and a master control switch (2), characterized in that: The distribution box body (1) is provided with a leakage detection mechanism (3) for detecting leakage current of circuit elements inside the distribution box body (1); a plurality of mounting plates (4) are detachably mounted from top to bottom inside the distribution box body (1); the master control switch (2) is fixedly mounted on the surface of the top mounting plate (4); and a leakage protection mechanism (5) capable of actively pushing the knife switch of the master control switch (2) when a circuit element leaks electricity is also fixedly mounted on the surface of the mounting plate (4); The leakage current detection mechanism (3) comprises a leakage current sensor (6), a temperature sensor (7) and a processor (8); the leakage current sensor (6) is fixedly arranged on the outside of the circuit to be tested, the temperature sensor (7) and the processor (8) are both fixedly connected to the inner wall of the distribution box body (1), and the leakage current sensor (6) and the temperature sensor (7) are both electrically connected to the signal input terminal of the processor (8); The leakage protection mechanism (5) comprises a first convex plate (9), a second convex plate (10), an electric telescopic rod (11), two limit seats (12), two movable support plates (13), an electromagnet (14), an iron plate (15), two counterweights (16) and a ceramic pressing rod (17), wherein the two limit seats (12) are fixedly connected to the surface of the mounting plate (4), the two movable support plates (13) are respectively slidably connected to the inner sides of the two limit seats (12), the two counterweights (16) are respectively fixedly connected to the lower surfaces of the two movable support plates (13), and the ceramic pressing rod (17) is fixedly connected to the two movable support plates (1 3), and the ceramic pressing rod (17) is located above the knife switch of the master control switch (2), the iron plate (15) is fixedly connected to the upper surface of the right movable support plate (13), the first convex plate (9) and the second convex plate (10) are both fixedly connected to the surface of the mounting plate (4), the electric telescopic rod (11) is fixedly connected to the lower surface of the first convex plate (9) and corresponds to the upper surface of the left movable support plate (13), and the electric telescopic rod (11) is electrically connected to the signal output end of the processor (8), and the electromagnet (14) is fixedly connected to the lower surface of the second convex plate (10) and corresponds to the iron plate (15) above and below.

2. A distribution box with emergency circuit protection function according to claim 1, characterized in that: The distribution box body (1) is internally fixedly connected with two vertical plates (18) that are symmetrical on both sides. A slide groove is provided on the surface of the vertical plate (18), and a slider (19) is slidably connected in the slide groove. Anti-skid tooth plates (20) are fixedly installed on the back of both ends of the mounting plate (4) by bolts, and two groups of tension springs (21) and ordinary telescopic rods (22) are fixedly connected between the slider (19) and the anti-skid tooth plate (20), and the tension spring (21) is sleeved on the outside of the ordinary telescopic rod (22). The surface of the vertical plate (18) is provided with fixed teeth (23) corresponding to the anti-skid tooth plate (20).

3. A distribution box with emergency circuit protection function according to claim 1, characterized in that: A T-shaped slide groove is provided on the inner side of the limit seat (12), and rollers (24) located on the inner side of the T-shaped slide groove are rotatably connected to both sides of the movable support plate (13).

4. A distribution box with emergency circuit protection function according to claim 1, characterized in that: The distribution box body (1) comprises a top box (25), a middle shell (26) and a bottom bellows (27); the top box (25) is fixedly connected to the upper end of the middle shell (26); the bottom bellows (27) is fixedly connected to the lower end of the middle shell (26); the processor (8) is fixedly mounted on the inner side of the top box (25); and the temperature sensor (7) is located on the inner side of the middle shell (26) and fixedly mounted on the lower surface of the top box (25).

5. A distribution box with emergency circuit protection function according to claim 4, characterized in that: The bottom bellows (27) is provided with a heat dissipation mechanism extending into the middle shell (26), and ventilation windows (28) and rain shields (29) are provided on both sides of the upper end of the middle shell (26) and both sides of the bottom bellows (27), and a dustproof net (30) is fixedly installed on the inner side of the ventilation window (28) by means of bolts.

6. A distribution box with emergency circuit protection function according to claim 4, characterized in that: Alarms (31) are fixedly connected to both sides of the middle shell (26), and the alarm (31) is electrically connected to a signal output end of the processor (8).

7. A distribution box with emergency circuit protection function according to claim 6, characterized in that: A wireless signal transceiver (32) and a backup power supply (33) are also fixedly connected to the inner side of the top box (25), and the antenna of the wireless signal transceiver (32) extends to the outer side of the top box (25). The electric telescopic rod (11), the processor (8), the wireless signal transceiver (32) and the alarm (31) are all electrically connected to the backup power supply (33). The wireless signal transceiver (32) can send signals to a mobile phone terminal of a staff member, and can also receive signals sent by the mobile phone terminal of the staff member.

8. A distribution box with emergency circuit protection function according to claim 5, characterized in that: The heat dissipation mechanism comprises a blower (34) and an air outlet pipe (35); the blower (34) is fixedly mounted on the inner side of the bottom bellows (27); the air outlet pipe (35) is fixedly mounted on the inner side of the middle shell (26); the air outlet pipe (35) is fixedly connected to the output end of the blower (34); and a plurality of air holes (36) facing the circuit elements are formed on the surface of the air outlet pipe (35).

9. A distribution box with emergency circuit protection function according to claim 8, characterized in that: The inner side of the air outlet pipe (35) is fixedly connected to an inner pipe (37) via a support block, the top of the inner pipe (37) is fixedly connected to a wind shield ring (38) fixedly connected to the inner wall of the air outlet pipe (35), a DC generator (39) is arranged on the inner side of the top box (25), the input end of the DC generator (39) is rotatably connected to a fan blade (40) located directly above the inner pipe (37), and the output end of the DC generator (39) is electrically connected to a backup power supply (33).

10. A distribution box with emergency circuit protection function according to claim 8, characterized in that: The blower (34) is electrically connected to a signal output terminal of the processor (8).

Images