Emergency cut-off protection device for electric power engineering

Abstract

The invention relates to the field of electric power devices, in particular to an electric power engineering emergency cut-off protection device which comprises a waterproof shell, a sliding cabin and the like. According to the emergency cut-off protection device for the electric power engineering, the sliding cabin for placing the cylindrical fuse is arranged in the waterproof shell in a sliding mode, in the power-off state, a storage battery on the adapter is used for supplying power, automatic operation can be carried out on opening and closing work of the sliding cabin through an electromagnetic lock and a spring, and the safety of the electric power engineering is improved. The cylinder fuses in the sliding cabin are rapidly and automatically replaced in cooperation with the automatic discharging mechanism, a damp-proof sealing ring is further arranged at a discharging opening of a storage shell of the automatic discharging mechanism, and the storage shell and the sliding cabin are both in a dry state in cooperation with a micro air heater arranged in the sliding cabin. The defects that the processing speed is low, the overall working efficiency of a power supply place is affected and the operation danger is large due to manual live-line work when the cylindrical fuse of the protection device is manually replaced are overcome.

Description

Technical Field

[0001] The invention relates to the field of electric power devices, and in particular to an emergency cut-off protection device for electric power engineering. Background Art

[0002] In large power supply places, such as office places or production and processing workshops, emergency cut-off protection devices will be used in the power system. When the protection device of the power system identifies an abnormal surge in power consumption, the cylinder fuse in the protection device will automatically disconnect, and the power supply of the entire power system will be cut off in time. At this time, the electrical equipment in the power supply place will be forced to stop running, and the equipment with abnormal power consumption will also stop running, so as to provide emergency protection for the electrical equipment. After that, it is necessary to manually replace the cylinder fuse in the protection device. If the cylinder fuse of the protection device is not replaced in time, it will affect the normal operation of the electrical equipment, thereby seriously affecting the overall work efficiency of the power supply place. Manual replacement of the cylinder fuse requires sufficient preparatory work, otherwise there will be greater operational risks, which will prolong the maintenance time of the cylinder fuse. Summary of the invention

[0003] In order to overcome the shortcomings that manual replacement of the cylindrical fuse of the protection device is not only slow, affecting the overall work efficiency of the power supply site, but also has great operational risks in manual live work, the present invention provides an emergency cut-off protection device for power engineering.

[0004] The invention discloses an emergency cut-off protection device for electric power engineering, comprising a waterproof shell, a horizontal plate, a battery, a sliding cabin, a spring, a permanent magnet, an electromagnetic lock, a sealing plug, and an automatic feeding mechanism; an adapter is installed in the waterproof shell; the circuit system of the adapter is electrically connected to a positive electrode sheet and a negative electrode sheet in sequence; the adapter is electrically connected to a battery; a sliding cabin is slidably connected in the waterproof shell; a cylindrical fuse in a power-on state is placed in the accommodating channel of the sliding cabin; a horizontal plate is fixed in the waterproof shell; the sliding cabin is slidably connected to the horizontal plate; the bottom of the cylindrical fuse in the sliding cabin is tightly against the horizontal plate; a spring is fixedly connected between the sliding cabin and the waterproof shell; a permanent magnet is fixedly connected to the sliding cabin; an electromagnetic lock is installed in the waterproof shell, and the electromagnetic lock is electrically connected to the battery through the circuit system; the waterproof shell is connected to the automatic feeding mechanism; a sealing plug is fixedly connected to the sliding cabin; the sealing plug is tightly against the discharge port area of ​​the automatic feeding mechanism.

[0005] To further explain, the horizontal board is made of rubber material.

[0006] Further explanation: a power off button is electrically connected to the adapter.

[0007] Further explanation: the sliding cabins are all made of waterproof plastic material.

[0008] It is further explained that the automatic unloading mechanism includes a storage shell, a push plate, a tension spring and a sealing ring; the storage shell is fixedly connected to the waterproof shell, and all spare cylindrical fuses are arranged and placed inside the storage shell; a unloading port structure is opened at the bottom of the storage shell, and the unloading port serves as the discharge port area of ​​the automatic unloading mechanism; the sealing plug is tightly attached to the unloading port of the storage shell; a push plate is slidably connected to the side of the storage shell away from the unloading port; a tension spring is fixedly connected between the push plate and the storage shell; the unloading port of the storage shell is fixedly connected to the sealing ring, and in the initial state, the sealing plug is tightly attached to the sealing ring to jointly seal and block the unloading port of the storage shell, thereby improving the interception effect of external humid air, and preventing a large amount of external humid air from passing through the unloading port into the storage shell, posing a safety threat to the storage environment of the cylindrical fuses inside the storage shell.

[0009] Further explanation: an electric push rod is installed on the waterproof shell, and the electric push rod is electrically connected to the battery through the circuit system; a slide rod is slidably connected to the storage shell; and the telescopic end of the electric push rod is fixedly connected to the slide rod.

[0010] Further explanation: a micro rangefinder is installed on the top of the slide bar and is aligned with the feed opening. The micro rangefinder is electrically connected to the battery through the circuit system.

[0011] It is further explained that a cavity structure is provided inside the sliding cabin; a micro hot air blower is installed in the internal cavity of the sliding cabin; an air inlet structure connected to the internal cavity is opened on the sliding cabin; a first air outlet structure connected to the internal cavity is opened in the accommodating channel of the sliding cabin; and a water-absorbing cotton is provided in each first air outlet.

[0012] Further explanation: the air inlet is located close to the side of the waterproof housing.

[0013] It is further explained that a plurality of second air vent structures connected to the internal cavity are provided on the upper side of the accommodating channel of the sliding cabin; and a water-absorbing cotton is provided in each second air vent.

[0014] The beneficial effects of the present invention are as follows: the present invention describes an emergency cut-off protection device for electric power engineering, wherein a sliding compartment for placing a cylindrical fuse slides inside a waterproof shell, and in a power-off state, the opening and closing of the sliding compartment can be automatically operated by an electromagnetic lock and a spring, so that the cylindrical fuse in the sliding compartment can be automatically replaced quickly in cooperation with an automatic unloading mechanism;

[0015] The unloading port of the storage shell of the automatic unloading mechanism is also provided with a moisture-proof sealing ring. When the automatic unloading mechanism pushes the new cylindrical fuse to be unloaded into the sliding cabin, the sealing ring can also be used to control the unloading speed of the cylindrical fuse to prevent the cylindrical fuse from falling and being damaged during the replacement work. At the same time, in conjunction with the built-in micro hot air blower of the sliding cabin, the storage shell and the sliding cabin are kept in a dry state during the replacement of the cylindrical fuse, which is not only conducive to providing a safe working environment for the cylindrical fuse inside the waterproof shell, but also conducive to providing a safe storage environment for the cylindrical fuse inside the storage shell.

[0016] The invention overcomes the disadvantages that manual replacement of the cylindrical fuse of the protection device is not only slow, affecting the overall work efficiency of the power supply site, but also has great operational risks in manual live work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram for describing the present invention according to an embodiment;

[0018] Figure 2 A cross-sectional view of a waterproof shell and a storage shell is provided to describe the present invention according to an embodiment;

[0019] Figure 3 A schematic diagram of an adapter for describing the present invention according to an embodiment;

[0020] Figure 4 A cross-sectional view of a waterproof housing according to an embodiment of the present invention is described;

[0021] Figure 5 A cross-sectional view of a storage shell for describing the present invention according to an embodiment;

[0022] Figure 6 A schematic diagram of a sliding cabin is provided to describe the present invention according to an embodiment;

[0023] Figure 7 A schematic diagram of the positional relationship between the accommodating channel and the horizontal plate when removing a damaged cylindrical fuse according to an embodiment of the present invention is described;

[0024] Figure 8 A schematic diagram of the position relationship between the accommodating channel and the horizontal plate when replacing a good cylindrical fuse according to an embodiment of the present invention;

[0025] Fig. 9 The present invention is a schematic diagram of a state in which a slide bar and a micro-rangefinder in a storage shell push a cylindrical fuse to fall according to an embodiment of the present invention.

[0026] Markings in the accompanying drawings: 1-waterproof shell, 11-horizontal plate, 2-adapter, 21-positive electrode sheet, 22-negative electrode sheet, 23-battery, 24-power-off button, 3-cylindrical fuse, 31-sliding compartment, 3101-accommodating channel, 3102-air inlet, 3103-first air outlet, 3104-second air outlet, 32-spring, 33-permanent magnet, 34-electromagnetic lock, 35-sealing plug, 36-micro hot air blower, 4-storage shell, 401-feeding port, 41-push plate, 42-tension spring, 51-electric push rod, 52-sliding rod, 53-micro rangefinder, 54-sealing ring. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0028] Example 1

[0029] An emergency cut-off protection device for electric power engineering, such as Figure 1-Figure 6 As shown, it includes a waterproof shell 1, a horizontal plate 11, an adapter 2, a positive electrode sheet 21, a negative electrode sheet 22, a battery 23, a cylindrical fuse 3, a sliding cabin 31, a spring 32, a permanent magnet 33, an electromagnetic lock 34, a sealing plug 35, and an automatic unloading mechanism; the adapter 2 is installed in the waterproof shell 1, and the adapter 2 is externally connected to the total circuit system; the circuit system of the adapter 2 is electrically connected to the positive electrode sheet 21 and the negative electrode sheet 22 in sequence; the adapter 2 is electrically connected to the battery 23; the sliding cabin 31 is slidably connected to the inner front side of the waterproof shell 1; the cylindrical fuse 3 is placed in the accommodating channel 3101 of the sliding cabin 31; the positive and negative electrodes of the cylindrical fuse 3 are respectively in close contact with the positive electrode sheet 21 and the negative electrode sheet 22, and the cylindrical fuse 3 forms a complete power-on state with the total circuit system externally connected to the adapter 2 through the positive electrode sheet 21 and the negative electrode sheet 22, and the external total circuit system will only charge the battery 23 The waterproof shell 1 is provided with a horizontal plate 11 fixed therein; the sliding cabin 31 is slidably connected to the horizontal plate 11 through a through groove; the bottom of the cylindrical fuse 3 in the sliding cabin 31 is close to the horizontal plate 11, and the horizontal plate 11 provides bottom support for the cylindrical fuse 3 in the sliding cabin 31; a spring 32 is fixedly connected between the sliding cabin 31 and the waterproof shell 1; a permanent magnet 33 is fixedly connected to the sliding cabin 31; an electromagnetic lock 34 is installed in the waterproof shell 1, and the electromagnetic lock 34 is electrically connected to the battery 23 through the circuit system; the electromagnetic lock 34 in the energized state generates an electromagnetic attraction to the permanent magnet 33, so that the permanent magnet 33 remains in a state close to the electromagnetic lock 34, thereby fixing the position of the sliding cabin 31, and the spring 32 is in a compressed state at this time; an automatic unloading mechanism is connected to the waterproof shell 1; a sealing plug 35 is fixedly connected to the sliding cabin 31; the sealing plug 35 is close to the discharge port area of ​​the automatic unloading mechanism.

[0030] like Figure 4 As shown, the cross plate 11 is made of rubber material. When the sliding compartment 31 pops out from the waterproof shell 1 to replace the cylindrical fuse 3, the new cylindrical fuse 3 falls downward along the accommodating channel 3101 of the sliding compartment 31 onto the cross plate 11. The rubber cross plate 11 can provide buffering protection for the fallen cylindrical fuse 3. The sliding compartments 31 are made of waterproof plastic material.

[0031] like Figure 2 As shown, the adapter 2 is electrically connected to a power-off button 24. When manual replacement of the cylindrical fuse 3 is required on a regular basis, the staff only needs to press the power-off button 24 to cut off the power supply to the circuit system of the entire adapter 2. After the electromagnetic lock 34 is forcibly closed, the spring 32, which is initially in a compressed state, can pop the sliding compartment 31 and the cylindrical fuse 3 therein out of the waterproof shell 1, so as to facilitate manual replacement of the cylindrical fuse 3.

[0032] As shown in 1 and 5, the automatic unloading mechanism includes a storage shell 4, a push plate 41, a tension spring 42, an electric push rod 51, a slide bar 52, a micro-rangefinder 53 and a sealing ring 54; the storage shell 4 is fixedly connected to the waterproof shell 1, and all spare cylindrical fuses 3 are arranged in the front-to-back direction and placed inside the storage shell 4; a unloading port 401 structure is opened at the bottom of the storage shell 4, and the unloading port 401 serves as the discharge port area of ​​the automatic unloading mechanism; the sealing plug 35 is close to the unloading port 401 of the storage shell 4; the storage shell 4 is slidably connected with a push plate 41 on the side away from the unloading port 401; a tension spring 42 is fixedly connected between the push plate 41 and the storage shell 4, and the tension spring 42 is initially in a stretched state; the push plate 41 is pulled forward by the stretched tension spring 42 to be close to the first spare cylindrical fuse 3 on the rear side; the waterproof shell 1 is equipped with an electric push rod 51, a slide bar 52, a micro-rangefinder 53 and a sealing ring 54; the waterproof shell 1 is provided ... The electric push rod 51 is electrically connected to the battery 23 through the circuit system; the storage shell 4 is slidably connected with a slide rod 52 for pushing the cylindrical fuse 3 downward through the discharge port 401; the telescopic end of the electric push rod 51 is fixedly connected to the slide rod 52; a micro-rangefinder 53 aligned with the discharge port 401 is installed on the top of the slide rod 52, and the micro-rangefinder 53 is electrically connected to the battery 23 through the circuit system; the discharge port 401 of the storage shell 4 is fixedly connected with a sealing ring 54, and in the initial state, the sealing plug 35 is tightly attached to the sealing ring 54 to seal and shield the discharge port 401 of the storage shell 4, thereby improving the interception effect of external humid air, and preventing a large amount of external humid air from passing through the discharge port 401 into the storage shell 4, which poses a safety threat to the storage environment of the cylindrical fuse 3 inside the storage shell 4.

[0033] In the replacement work of the cylindrical fuse 3 of the emergency cut-off protection device of an electric power engineering of the present invention, the following operations need to be performed for ease of understanding. Figure 2 As shown, the sealing plug 35 is in the front direction relative to the cylindrical fuse 3. Figure 2As shown, the positive electrode sheet 21 is located to the right relative to the cylindrical fuse 3 .

[0034] The top of the storage shell 4 is a top cover that can be actively disassembled or closed. A certain number of intact cylindrical fuses 3 need to be pre-installed in the storage shell 4 for standby. When the cylindrical fuse 3 in the sliding compartment 31 encounters an abnormal surge in power consumption in the external total circuit system when it is powered on, the cylindrical fuse 3 will automatically burn out and cut off the power supply of the entire power system in time. At this time, the external total circuit system of the adapter 2 is in a power-off state, and the battery 23 alone supplies power to the emergency cut-off protection device for power engineering of the present invention.

[0035] Then, the electromagnetic lock 34 reverses the electromagnetic field and applies an electromagnetic repulsive force to the permanent magnet 33. Under the combined effect of the electromagnetic repulsive force and the thrust of the compressed spring 32, the permanent magnet 33 pushes the sliding compartment 31 to drive the cylindrical fuse 3 inside it to pop out from the waterproof shell 1. When the permanent magnet 33 pushes the cylindrical fuse 3 to pop out to the position as shown in the figure, the cylindrical fuse 3 is pushed forward by the electromagnetic repulsive force. Figure 7 When the spring 32 is in the stretched state, the horizontal plate 11 leaves the accommodating channel 3101 of the sliding compartment 31, and the bottom of the cylindrical fuse 3 is no longer in contact with the horizontal plate 11 and is no longer supported by the horizontal plate 11. Therefore, the cylindrical fuse 3 will directly fall downward from the sliding compartment 31 along the accommodating channel 3101 to the distribution box of the external main circuit system. When the cylindrical fuse 3 passes through the positive electrode sheet 21 and the negative electrode sheet 22, because the positive electrode sheet 21 and the negative electrode sheet 22 are arc-shaped, the cylindrical fuse 3 will be moved downward by the positive electrode sheet 21 and the negative electrode sheet 22. Figure 8 It is understood that when the cylindrical fuse 3 wants to restore or break away from the contact with the positive electrode sheet 21 and the negative electrode sheet 22, it is necessary to first slightly squeeze and push the positive electrode sheet 21 and the negative electrode sheet 22 apart. During the squeezing and pushing process, the cylindrical fuse 3 will be subject to the blocking force brought by the positive electrode sheet 21 and the negative electrode sheet 22, but the blocking force is small and does not affect the normal ejection work and subsequent insertion work of the cylindrical fuse 3, thereby completing the automatic separation work of the old cylindrical fuse 3.

[0036] After that, the electromagnetic lock 34 stops the electromagnetic repulsion force exerted on the permanent magnet 33, and only the stretched spring 32 pulls the sliding cabin 31 to move backward to the position as shown in FIG. Figure 8In the state, the receiving channel 3101 of the sliding chamber 31 is aligned with the discharge port 401 of the storage shell 4, and the sealing plug 35 of the sliding chamber 31 leaves the discharge port 401 of the storage shell 4, and the cross plate 11 returns to the receiving channel 3101 of the sliding chamber 31, and then the electric push rod 51 pushes the slide rod 52 to drive the first cylindrical fuse 3 on the front side of the storage shell 4 to push downward into the receiving channel 3101 of the sliding chamber 31, and the cylindrical fuse 3 is disconnected by the micro-rangefinder 53. After being completely pushed downward from the storage shell 4, the electric push rod 51 stops driving the micro-distance meter 53 to move, and then the cylindrical fuse 3 will continue to fall downward along the accommodating channel 3101 of the sliding compartment 31. At the same time, the micro-distance meter 53 monitors the subsequent falling distance of the cylindrical fuse 3. When the micro-distance meter 53 recognizes that the cylindrical fuse 3 falls to the specified distance, it means that the cylindrical fuse 3 has successfully fallen onto the cross plate 11, and the automatic unloading of the new cylindrical fuse 3 is completed.

[0037] During this period, the cylindrical fuse 3 moving downward will be subjected to sliding friction from the sealing ring 54, so that the cylindrical fuse 3 is slowly pushed downward from the discharge port 401 of the storage shell 4, thereby preventing the cylindrical fuse 3 from falling directly through the discharge port 401 of the storage shell 4 into the accommodating channel 3101 of the sliding compartment 31, causing the cylindrical fuse 3 to be damaged by a strong falling impact, thereby affecting the safe working state of the cylindrical fuse 3 inside the waterproof shell 1.

[0038] During the automatic unloading process of the new cylindrical fuse 3, if Fig. 9 As shown, the micro-rangefinder 53 is in a state of blocking the discharge port 401 of the storage shell 4, and the remaining cylindrical fuses 3 in the storage shell 4 will be blocked by the slide bar 52. After the automatic discharge of the new cylindrical fuse 3 is completed, the electric push rod 51 pulls the slide bar 52 to reset upward, and then the tension spring 42 in the stretched state contracts to push the push plate 41 to move forward, and the push plate 41 pushes the remaining cylindrical fuses 3 in the storage shell 4 to move forward until the first existing cylindrical fuse 3 in the storage shell 4 is aligned with the discharge port 401. At the same time, the electromagnetic lock 34 exerts the electromagnetic attraction of the permanent magnet 33 again. Under the action of the electromagnetic attraction, the permanent magnet 33 pulls the sliding cabin 31 and the new cylindrical fuse 3 inside it back into the waterproof shell 1, and the spring 32 is compressed again, so that the cylindrical fuse 3 forms a complete power-on state through the positive electrode sheet 21 and the negative electrode sheet 22 and the total circuit system connected to the adapter 2 again, completing the automatic replacement of the cylindrical fuse 3.

[0039] Example 2

[0040] On the basis of Example 1, Figure 1-Figure 5As shown, the sliding cabin 31 of this embodiment is provided with a cavity structure inside; a micro hot air blower 36 is installed in the internal cavity of the sliding cabin 31, and the micro hot air blower 36 is electrically connected to the battery 23 through the circuit system; an air inlet 3102 structure connected to the internal cavity is opened on the sliding cabin 31, and the air inlet 3102 is located on the side close to the waterproof shell 1; a plurality of first air vents 3103 structures connected to the internal cavity are opened in the accommodating channel 3101 of the sliding cabin 31; when the sliding cabin 31 is in a state of being inserted into the waterproof shell 1, the sliding cabin 3 The air inlet 3102 on the right side of the sliding compartment 31 is blocked by the waterproof housing 1, and the moist air from the outside cannot enter the air inlet 3102, thereby preventing the moist air from entering the waterproof housing 1 through the air inlet 3102 and the first air outlet 3103 of the sliding compartment 31 in turn, thereby posing a safety threat to the working environment of the cylindrical fuse 3. A plurality of second air outlets 3104 structures connected to the internal cavity are provided on the upper side of the accommodating channel 3101 of the sliding compartment 31. A water-absorbing cotton is provided in each of the first air outlet 3103 and each of the second air outlets 3104.

[0041] When the outside air is in a humid state, when the sliding cabin 31 pops out from the waterproof shell 1 to replace the cylindrical fuse 3, the micro hot air blower 36 is in an on state. After the outside humid air is drawn into the internal cavity through the air inlet 3102 of the sliding cabin 31 by the micro hot air blower 36, the humid air flow flows out through the first air outlet 3103 and the second air outlet 3104 respectively in a hot air flow state under the heat drying effect of the micro hot air blower 36. At the same time, the absorbent cotton absorbs the moisture in the hot air flow, allowing the hot air flow to flow out in a dry state.

[0042] The hot air flow out of the first air outlet 3103 performs surface air drying treatment on the cylindrical fuse 3 newly placed in the accommodating channel 3101 of the sliding cabin 31, so that when the sliding cabin 31 pushes the cylindrical fuse 3 into the waterproof shell 1, the air entering the waterproof shell 1 along with the sliding cabin 31 and the cylindrical fuse 3 is in a dry state, thereby keeping the interior of the waterproof shell 1 in a dry environment, which is beneficial to providing a safe working environment for the cylindrical fuse 3 inside the waterproof shell 1.

[0043] In addition, the hot air flow out of the second air outlet 3104 directly passes through the discharge port 401 of the storage shell 4 upwards and enters the interior of the storage shell 4, so that the interior of the storage shell 4 is replaced with new dry air, so that the interior of the storage shell 4 is also kept in a dry environment, which is beneficial to provide a safe storage environment for the cylindrical fuse 3 inside the storage shell 4. At the same time, in the process of the hot air flow flowing upwards through the sealing ring 54, the sealing ring 54 can be quickly dried, allowing the sealing ring 54 to restore its original watertight sealing effect.

[0044] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. An emergency cut-off protection device for electric power engineering, comprising: a waterproof housing (1); An adapter (2) is installed in the waterproof shell (1); the circuit system of the adapter (2) is electrically connected to the positive electrode sheet (21) and the negative electrode sheet (22) in sequence; Its characteristics are: The invention also comprises a storage battery (23); the storage battery (23) is electrically connected to the adapter (2); a sliding compartment (31) is slidably connected to the waterproof shell (1); a cylindrical fuse (3) in an energized state is placed in the receiving channel (3101) of the sliding compartment (31); a transverse plate (11) is fixedly connected to the waterproof shell (1); the sliding compartment (31) is slidably connected to the transverse plate (11); the bottom of the cylindrical fuse (3) in the sliding compartment (31) is closely attached to the transverse plate (11); 1); a spring (32) is fixedly connected between the sliding cabin (31) and the waterproof shell (1); a permanent magnet (33) is fixedly connected to the sliding cabin (31); an electromagnetic lock (34) is installed in the waterproof shell (1), and the electromagnetic lock (34) is electrically connected to the storage battery (23) through a circuit system; an automatic material discharge mechanism is connected to the waterproof shell (1); a sealing plug (35) is fixedly connected to the sliding cabin (31); and the sealing plug (35) is closely attached to the discharge port area of ​​the automatic material discharge mechanism.

2. The emergency cut-off protection device for electric power engineering according to claim 1 is characterized in that: The horizontal plate (11) is made of rubber.

3. The emergency cut-off protection device for electric power engineering according to claim 1 is characterized in that: The adapter (2) is electrically connected to a power-off button (24).

4. The emergency cut-off protection device for electric power engineering according to claim 1 is characterized in that: The sliding cabin (31) is made of waterproof plastic material.

5. The power engineering emergency cut-off protection device according to claim 1 is characterized in that: The automatic unloading mechanism comprises a storage shell (4), a push plate (41), a tension spring (42) and a sealing ring (54); the storage shell (4) is fixedly connected to the waterproof shell (1), and all spare cylindrical fuses (3) are arranged and placed inside the storage shell (4); a unloading port (401) structure is provided at the bottom of the storage shell (4), and the unloading port (401) serves as a discharge port area of ​​the automatic unloading mechanism; a sealing plug (35) is closely attached to the unloading port (401) of the storage shell (4); a push plate (42) is slidably connected to the side of the storage shell (4) away from the unloading port (401) 41); a tension spring (42) is fixedly connected between the push plate (41) and the storage shell (4); a sealing ring (54) is fixedly connected to the discharge opening (401) of the storage shell (4); in an initial state, the sealing plug (35) is tightly attached to the sealing ring (54) to seal and shield the discharge opening (401) of the storage shell (4), thereby improving the interception effect of external humid air and preventing a large amount of external humid air from passing through the discharge opening (401) into the storage shell (4) and posing a safety threat to the storage environment of the cylindrical fuse (3) inside the storage shell (4).

6. The emergency cut-off protection device for electric power engineering according to claim 5 is characterized by: An electric push rod (51) is installed on the shell (1), and the electric push rod (51) is electrically connected to the battery (23) through a circuit system; a slide rod (52) is slidably connected to the storage shell (4); and the telescopic end of the electric push rod (51) is fixedly connected to the slide rod (52).

7. The power engineering emergency cut-off protection device according to claim 6 is characterized in that: A micro-rangefinder (53) aligned with the feed opening (401) is installed on the top of the slide bar (52), and the micro-rangefinder (53) is electrically connected to the storage battery (23) through a circuit system.

8. An emergency cut-off protection device for electric power engineering according to any one of claims 5 to 7, characterized in that: A cavity structure is provided inside the sliding cabin (31); a micro hot air blower (36) is installed in the cavity inside the sliding cabin (31); an air inlet (3102) structure connected to the internal cavity is provided on the sliding cabin (31); a first air outlet (3103) structure connected to the internal cavity is provided in the accommodating channel (3101) of the sliding cabin (31); and a water-absorbing cotton is provided in each first air outlet (3103).

9. The power engineering emergency cut-off protection device according to claim 8 is characterized in that: The air inlet (3102) is located close to one side of the waterproof housing (1).

10. The power engineering emergency cut-off protection device according to claim 9, characterized in that: A plurality of second air vents (3104) structures connected to the internal cavity are provided on the upper side of the accommodating channel (3101) of the sliding cabin (31); each second air vent (3104) is provided with a water-absorbing cotton.

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