CN112636227A

CN112636227A - Closed mine block terminal maintenance of equipment

Info

Publication number: CN112636227A
Application number: CN202110025914.3A
Authority: CN
Inventors: 赵宁柠
Original assignee: Nanjing Kuangshi Video Technology Co ltd
Current assignee: Nanjing Kuangshi Video Technology Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-04-09

Abstract

The invention discloses closed mine distribution box maintenance equipment, which comprises an equipment body, wherein a distribution cavity is arranged in the equipment body, a maintenance closed cavity with a rightward opening is arranged in the front end surface of the equipment body, a safety protection door capable of moving left and right is arranged in the maintenance closed cavity, the distribution cavity can be closed when the safety protection door is positioned at the left limit, and a safety protection cavity with an upward opening and extending rightward is arranged in the left end surface of the safety protection door. The gas explosion accident in the mine is avoided, and the life safety of people is guaranteed.

Description

Closed mine block terminal maintenance of equipment

Technical Field

The invention relates to the field of electrical engineering, in particular to closed mine distribution box maintenance equipment.

Background

The internal part of a mine needs electric power for distribution, the distribution box is used for completing the electric power distribution in the prior art, gas exists in the mine, when the distribution box is damaged, electric power leakage is easily caused, gas explosion in the mine is easily caused, the life safety of workers is seriously influenced, the existing explosion-proof distribution box still has problems in use, and explosion danger still exists when the internal part of the explosion-proof distribution box is maintained and opened.

Disclosure of Invention

In order to solve the problems, the closed mine distribution box maintenance equipment comprises an equipment body, a distribution cavity is arranged in the equipment body, a maintenance closed cavity with a right opening is arranged in the front end face of the equipment body, a safety protection door capable of moving left and right is arranged in the maintenance closed cavity, the distribution cavity can be closed when the safety protection door is positioned at the left limit, a safety protection cavity with an upward opening and extending right is arranged in the left end face of the safety protection door, a transparent operation plate capable of being closed is fixedly arranged in the maintenance closed cavity at the position corresponding to the safety protection cavity, a sealing guide plate extending backwards is fixedly arranged on the front wall of the left side of the safety protection cavity, the rear end face of the sealing guide plate is abutted against the front end face of the transparent operation plate, and the sealing guide plate is matched with the transparent operation plate to seal the distribution cavity, the upper wall surface of the power distribution cavity is provided with a sealed turning cavity with an upward opening, a tool placing channel is communicated and arranged between the upper wall surface of the sealed turning cavity and the upper end surface of the machine body, a sealing ring is fixedly arranged on the upper wall surface of the sealed turning cavity, a primary sealed cavity is communicated and arranged on the inner wall surface of the upper end of the tool placing channel, a touch and press sealing plate capable of moving left and right is arranged in the primary sealed cavity, the tool placing channel can be sealed by the touch and press sealing plate, a guide chute is communicated and arranged between the upper wall surface on the left side of the primary sealed cavity and the upper end surface of the machine body, a locking cavity with a rightward opening is arranged on the right side of the upper end surface of the touch and press sealing plate, a touch and press plate capable of moving left and right is arranged on the inner wall surface of the primary sealed cavity, a signal generator is fixedly arranged on the left wall surface, the inside of the air exchange cavity is provided with an air exchange device, the rear lower side of the air exchange cavity is provided with a turnover cavity, the rear wall surface of the sealed turnover cavity is rotatably provided with a crankshaft penetrating through the front wall surface and the rear wall surface of the turnover cavity, a connecting plate is fixedly arranged at the front end of the crankshaft, a tool storage device is fixedly arranged on the left end surface of the connecting plate, the tool storage device can seal the tool placing channel, a negative pressure cavity is arranged on the right side of the turnover cavity, the inner wall surface of the negative pressure cavity is provided with a negative pressure pushing plate capable of sliding left and right, the left end surface of the negative pressure pushing plate is fixedly provided with a pull rod extending to the inside of the turnover cavity, a pressure relief cavity is arranged in the machine body at the upper side of the right end of the negative pressure cavity, a pressure relief through hole is communicated between the lower wall surface of the pressure relief cavity and the upper wall surface of the negative pressure cavity, the lower wall surface of the pressure relief cavity is provided with a pressure relief plunger which can extend into the pressure relief through hole, and the pressure relief plunger can assist the negative pressure cavity in pressure relief.

Preferably, an opening and closing power cavity is arranged in the machine body on the right side of the power distribution cavity, a rack sliding cavity is communicated and arranged between the front wall surface of the opening and closing power cavity and the rear wall surface of the maintenance closed cavity, the left end of the rack sliding cavity is communicated with the power distribution cavity, the right end of the rack sliding cavity is communicated with the right end face of the machine body, the inside of the rack sliding cavity is provided with an opening and closing rack which can slide left and right, the front end surface of the opening and closing rack is fixedly connected with the rear end surface of the safety protection door, an upward extending opening and closing power shaft is rotatably arranged on the upper wall surface of the opening and closing power cavity, an opening and closing straight gear which can be meshed with the rear end surface of the opening and closing rack is fixedly arranged at the lower end of the opening and closing power shaft, an opening and closing motor is fixedly arranged in the machine body on the upper side of the opening and closing power shaft, and the opening and closing power shaft is in power connection with the lower end face of the opening and closing motor.

Preferably, the front end face and the rear end face of the transparent operating plate are communicated with each other to form bilaterally symmetrical extending holes, and soft rubber capable of being sealed is fixedly arranged on the rear end face of the transparent operating plate at the corresponding position of each extending hole.

Preferably, a fan support is fixedly arranged on the inner wall surface of the air exchange cavity, a fan shaft extending rightwards is rotatably arranged on the right wall surface of the air exchange cavity, an air exchange motor is fixedly arranged in the machine body at a position corresponding to the right end of the fan shaft, the right end of the fan shaft is in power connection with the left end surface of the air exchange motor, a fan is fixedly arranged on the left end of the fan shaft, an air exchange pipeline is communicated between the right wall surface of the air exchange cavity and the outside, and an air exchange one-way valve is fixedly arranged in the air exchange pipeline close to one side of the air exchange.

Preferably, the ventilation motor right side the internal fixed vacuum pump that is equipped with of organism, the ventilation motor with power connection has the negative pressure axle between the vacuum pump, the intercommunication is equipped with the blast pipe between vacuum pump up end and the external world, the vacuum pump down the terminal surface with the intercommunication is equipped with the negative pressure pipe between the negative pressure chamber right side wall, is close to negative pressure chamber one end the inside fixed negative pressure check valve that is equipped with of negative pressure pipe, the negative pressure promote board left end face with the fixed reset spring that is equipped with between the negative pressure chamber left side wall is located upset intracavity portion the outer disc hinged joint of bent axle has the connecting rod that extends to the upper right side, the connecting rod right-hand member with the pull rod left end hinged joint.

Preferably, a guide slide rod extending downwards is fixedly arranged on the lower end face of the pressure relief plunger, a return spring is fixedly arranged between the upper end face of the pressure relief plunger and the upper wall face of the pressure relief cavity, a pull ring capable of assisting in stretching is arranged on the upper end face of the machine body on the upper side of the pressure relief cavity, and a pull rope is fixedly connected between the pull ring and the upper end face of the pressure relief plunger.

Preferably, a touch pressure closed spring is fixedly arranged between the right end face of the touch pressure closed plate and the right wall face of the primary sealing cavity, a sliding guide push rod which passes through the sliding guide groove and extends out of the upper end face of the machine body is fixedly arranged on the right side of the upper end face of the touch pressure sealing plate, a touch press block is fixedly arranged on the left end face of the touch press plate, a signal touch press spring is fixedly arranged between the left wall face of the primary seal cavity and the left end face of the touch press plate, the signal generator is contacted with the touch block to control the driving of the ventilation motor, the upper wall surface of the primary sealing cavity at the left side of the touch sealing plate is communicated with an electromagnet core cavity extending upwards, an electromagnetic iron core is fixedly arranged on the upper wall surface of the electromagnetic core cavity, a locking head capable of sliding up and down is arranged on the inner wall surface of the electromagnetic core cavity, an electromagnetic spring is fixedly arranged between the upper end face of the locking head and the upper wall face of the electromagnet core cavity.

The invention has the beneficial effects that: according to the invention, through sealing the distribution box in the mine, a maintainer extends an arm to the inside of the soft rubber in a sealed state, and places a maintenance tool into the distribution box by using a double-sealing device, and performs ventilation treatment on the closed distribution box, so that maintenance on the distribution box is realized, gas in the mine is effectively prevented from entering the inside of equipment, explosion of the distribution box is effectively prevented, gas explosion accidents in the mine are avoided, and life safety of people is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure A-A of FIG. 1;

FIG. 3 is a schematic diagram of B-B of FIG. 2;

FIG. 4 is a schematic diagram of the structure of C-C in FIG. 1;

FIG. 5 is a schematic diagram of D-D of FIG. 4;

FIG. 6 is a schematic diagram of the structure of E-E in FIG. 1;

fig. 7 is an enlarged schematic view of F in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-7, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a closed mine distribution box maintenance device, which comprises a machine body 11, wherein a distribution cavity 12 is arranged in the machine body 11, a maintenance closed cavity 13 with a rightward opening is arranged in the front end surface of the machine body 11, a safety protection door 20 capable of moving left and right is arranged in the maintenance closed cavity 13, the distribution cavity 12 can be closed when the safety protection door 20 is positioned at the left limit, a safety protection cavity 21 with an upward opening and extending rightward is arranged in the left end surface of the safety protection door 20, a transparent operation plate 22 capable of being closed is fixedly arranged in the maintenance closed cavity 13 at the position corresponding to the safety protection cavity 21, a sealing guide plate 23 extending backwards is fixedly arranged on the front wall surface at the left side of the safety protection cavity 21, the rear end surface of the sealing guide plate 23 is mutually abutted against the front end surface of the transparent operation plate 22, the sealing guide plate 23 is mutually matched with the transparent operation plate 22 to seal the distribution cavity 12, the upper wall surface of the power distribution cavity 12 is provided with a sealed turning cavity 26 with an upward opening, a tool placing channel 27 is communicated between the upper wall surface of the sealed turning cavity 26 and the upper end surface of the machine body 11, the upper wall surface of the sealed turning cavity 26 is fixedly provided with a sealing ring 28, the inner wall surface of the upper end of the tool placing channel 27 is communicated with a primary sealed cavity 57, a touch and press sealing plate 60 capable of moving left and right is arranged in the primary sealed cavity 57, the touch and press sealing plate 60 can seal the tool placing channel 27, a guide chute 58 is communicated between the upper wall surface of the left side of the primary sealed cavity 57 and the upper end surface of the machine body 11, the right side of the upper end surface of the touch and press sealing plate 60 is provided with a locking cavity 62 with a rightward opening, the inner wall surface of the primary sealed cavity 57 at the left side of the touch and press sealing plate 60 is provided with a touch and press plate 67, the tool placing channel 27 on the lower side of the primary sealing cavity 57 is communicated with a right wall surface of a ventilation cavity 48 extending rightwards, a ventilation device is arranged in the ventilation cavity 48, a turning cavity 32 is arranged on the lower rear side of the ventilation cavity 48, a crankshaft 33 penetrating through the front wall surface and the rear wall surface of the turning cavity 32 is rotatably arranged on the rear wall surface of the sealing turning cavity 26, a connecting plate 31 is fixedly arranged at the front end of the crankshaft 33, a tool storage device 30 is fixedly arranged on the left end surface of the connecting plate 31, the tool storage device 30 can seal the tool placing channel 27, a negative pressure cavity 35 is arranged on the right side of the turning cavity 32, a negative pressure push plate 36 capable of sliding leftwards and rightwards is arranged on the inner wall surface of the negative pressure cavity 35, a pull rod 37 extending into the turning cavity 32 is fixedly arranged on the left end surface of the negative pressure push plate 36, a pressure relief cavity 39 is arranged in the machine body 11 on the upper side of the right end, the lower wall surface of the pressure relief cavity 39 is provided with a pressure relief plunger 41 which can extend into the pressure relief through hole 40, and the pressure relief plunger 41 can assist the negative pressure cavity 35 in pressure relief.

Beneficially, be equipped with switching power chamber 14 in the organism 11 on distribution chamber 12 right side, it is equipped with rack sliding chamber 15 to communicate between the wall before switching power chamber 14 and the maintenance closed chamber 13 rear wall, rack sliding chamber 15 left end with distribution chamber 12 communicates each other, rack sliding chamber 15 right end with organism 11 right end face communicates each other, rack sliding chamber 15 inside is equipped with switching rack 19 that can the horizontal slip, switching rack 19 front end face with safety protection door 20 rear end face fixed connection, switching power chamber 14 upper wall rotates and is equipped with the switching power shaft 17 that upwards extends, switching power shaft 17 lower extreme is fixed be equipped with can with switching rack 19 rear end face intermeshing's switching straight gear 18, switching power shaft 17 upside organism 11 internal fixation is equipped with switching motor 16, the opening and closing power shaft 17 is in power connection with the lower end face of the opening and closing motor 16.

Beneficially, the front and rear end faces of the transparent operating plate 22 are communicated with each other to form extending holes 24, and the rear end face of the transparent operating plate 22 at the corresponding position of the extending holes 24 is fixedly provided with a soft rubber 25 capable of being sealed.

Beneficially, a fan support 49 is fixedly arranged on the inner wall surface of the ventilation cavity 48, a fan shaft 51 extending rightward is rotatably arranged on the right wall surface of the ventilation cavity 48, a ventilation motor 50 is fixedly arranged in the machine body 11 at a position corresponding to the right end of the fan shaft 51, the right end of the fan shaft 51 is in power connection with the left end surface of the ventilation motor 50, a fan 52 is fixedly arranged on the left end of the fan shaft 51, a ventilation pipeline 53 is communicated between the right wall surface of the ventilation cavity 48 and the outside, and a ventilation check valve 54 is fixedly arranged inside the ventilation pipeline 53 at one side close to the ventilation cavity 48.

Beneficially, the internal fixation of organism 11 on ventilation motor 50 right side is equipped with vacuum pump 71, power connection has negative pressure shaft 55 between ventilation motor 50 and the vacuum pump 71, the intercommunication is equipped with blast pipe 56 between vacuum pump 71 up end and the external world, vacuum pump 71 lower extreme terminal surface with the intercommunication is equipped with negative pressure pipe 46 between the negative pressure chamber 35 right side wall, is close to negative pressure chamber 35 one end negative pressure pipe 46 is inside to be fixed to be equipped with negative pressure check valve 47, negative pressure push plate 36 left end face with fixed reset spring 38 that is equipped with between the negative pressure chamber 35 left side wall, be located inside upset chamber 32 the outer disc hinged joint of bent axle 33 has the connecting rod 34 of extending to the upper right side, connecting rod 34 right-hand member with pull rod 37 left end hinged joint.

Advantageously, a downwardly extending slide guiding rod 43 is fixedly arranged on the lower end surface of the pressure relief plunger 41, a return spring 42 is fixedly arranged between the upper end surface of the pressure relief plunger 41 and the upper wall surface of the pressure relief cavity 39, an auxiliary tensile pull ring 44 is arranged on the upper end surface of the machine body 11 on the upper side of the pressure relief cavity 39, and a pull rope 45 is fixedly connected between the pull ring 44 and the upper end surface of the pressure relief plunger 41.

Advantageously, a touch closing spring 61 is fixedly arranged between the right end face of the touch closing plate 60 and the right wall face of the primary sealing cavity 57, a sliding guide push rod 59 which penetrates through the sliding guide groove 58 and extends out of the upper end face of the machine body 11 is fixedly arranged on the right side of the upper end face of the touch pressure closing plate 60, a touch pressing block 69 is fixedly arranged on the left end face of the touch pressing plate 67, a signal touch pressing spring 70 is fixedly arranged between the left wall face of the primary sealing cavity 57 and the left end face of the touch pressing plate 67, the contact between the signal generator 68 and the contact block 69 can control the driving of the ventilation motor 50, the upper wall surface of the primary sealing cavity 57 at the left side of the touch pressure closing plate 60 is communicated with an electromagnet core cavity 63 extending upwards, an electromagnetic iron core 64 is fixedly arranged on the upper wall surface of the electromagnetic core cavity 63, a locking head 66 capable of sliding up and down is arranged on the inner wall surface of the electromagnetic core cavity 63, an electromagnetic spring 65 is fixedly arranged between the upper end surface of the locking head 66 and the upper wall surface of the electromagnet core cavity 63.

The following detailed description of the steps of using a closed mine electrical box maintenance device according to the present disclosure is provided with reference to fig. 1 to 7:

in an initial state, the safety protection door 20 and the sealing guide sliding plate 23 are in a left limit position, the tool storage device 30 and the sealing ring 28 are abutted against each other and seal the tool placement channel 27, the connecting rod 34 is in an inclined state, the negative pressure pushing plate 36 is in the left limit position, the pressure relief plunger 41 and the guide sliding rod 43 are in a lower limit position, the negative pressure one-way valve 47 and the ventilation pipeline 53 are in a closed state, the touch pressure sealing spring 61 is in a free state, the touch pressure sealing plate 60 is located on the left side of the locking head 66, the touch pressure plate 67 is in the right limit position, the signal generator 68 is disconnected from the touch pressure block 69, the electromagnetic core 64 is in a power-off state, and the locking head 66 is in the lower.

When the tool storage device works, the sliding guide push rod 59 is pushed to move rightwards, the sliding contact sealing plate 60 is driven to move rightwards and compress the sliding contact sealing spring 61, the upper port of the tool storage channel 27 is opened by the sliding contact sealing plate 60, at the moment, maintenance equipment is placed inside the tool storage device 30 through the tool storage channel 27, the limit of the sliding guide push rod 59 is released, the sliding contact sealing plate 60 is reset leftwards under the elastic force of the sliding contact sealing spring 61, the sliding guide push rod 59 is continuously pushed leftwards, the sliding contact sealing plate 60 is driven to stretch the sliding contact sealing spring 61 to move leftwards, the locking head 66 is driven by the sliding contact sealing plate 60 to move upwards and compress the electromagnetic spring 65, when the sliding contact sealing plate 60 moves to the left limit, the tool storage channel 27 is closed again, the locking head 66 extends into the locking cavity 62 to lock the sliding contact sealing plate 60, at the moment, the sliding contact sealing plate 60 pushes the sliding contact sealing plate 67 to move leftwards and compress the signal sliding contact, the contact block 69 abuts against the signal generator 68 to drive the ventilation motor 50, thereby driving the fan shaft 51 to rotate, further driving the fan 52 to rotate at a high speed, further extracting the gas inside the tool placing channel 27, at this time, the ventilation check valve 54 is opened, further outputting the gas inside the tool placing channel 27 through the ventilation pipeline 53, driving the ventilation motor 50 while driving the negative pressure shaft 55 to rotate, further driving the vacuum pump 71 to operate, at this time, the negative pressure check valve 47 inside the negative pressure pipe 46 is opened, further sucking the air inside the negative pressure cavity 35 through the negative pressure pipe 46, further gradually forming vacuum inside the negative pressure cavity 35, further attracting the negative pressure push plate 36 to move rightwards and stretching the return spring 38, further driving the pull rod 37 to move rightwards, further driving the connecting rod 34 to rotate to a horizontal state, further driving the crankshaft 33 to turn right and left and right degrees anticlockwise, further driving the connecting plate 31 to, further driving the tool storage device 30 to turn right and left counterclockwise around the crankshaft 33, the tool storage device 30 opening the lower end of the tool storage channel 27, at this time, continuing to ventilate the tool storage channel 27 and the interior of the power distribution chamber 12 by the fan 52, driving the opening and closing motor 16 to rotate forward, further driving the opening and closing spur gear 18 to rotate, further driving the mutually meshed opening and closing rack 19 to move rightward, further driving the safety protection door 20 to move rightward, at this time, the sealing guide plate 23 moves rightward along with the safety protection door 20 while sealing the safety protection chamber 21, when the safety protection door 20 moves to the right limit position, stopping driving the opening and closing motor 16, at this time, the safety protection door 20 will extend the hole 24, the maintenance person will extend the arm to the interior of the soft rubber 25 through the extending hole 24, and further take the maintenance tool in the tool storage device 30, then, the electric equipment in the distribution chamber 12 is maintained, after the maintenance is completed, the maintenance equipment is placed in the tool storage device 30 again, at this time, the arm of the maintenance personnel is taken out from the soft rubber 25, the opening and closing motor 16 is driven to rotate reversely, the opening and closing power shaft 17 is driven to rotate reversely, the opening and closing spur gear 18 is driven to rotate reversely, the mutually meshed opening and closing rack 19 is driven to move leftwards, the safety protection door 20 is driven to move leftwards and complete the reset, when the safety protection door 20 moves to the left limit position, the driving of the opening and closing power shaft 17 is stopped, the electromagnetic core 64 is electrified, magnetic force is generated, the locking head 66 is attracted to move upwards and compress the electromagnetic spring 65, at this time, the locking head 66 releases the locking of the touch and press sealing plate 60, the touch and press sealing plate 60 moves rightwards and resets under the elastic force of the touch and press sealing plate 60 releases the butt of the touch and, the contact pressure plate 67 moves rightwards under the elastic force of the signal contact pressure spring 70, the signal generator 68 is disconnected from the contact pressure block 69, the driving of the ventilation motor 50 is stopped, the fan 52 stops rotating, the replacement of the gas inside the tool placing channel 27 and the power distribution chamber 12 is stopped, the driving of the negative pressure shaft 55 is disconnected, the vacuum pump 71 stops working, the pressure relief plunger 41 is driven to move upwards through the pull rope 45 and compress the return spring 42 by pulling the pull ring 44 upwards, the pressure relief plunger 41 and the slide guide rod 43 continuously communicate the pressure relief through hole 40 with the pressure relief chamber 39, the negative pressure chamber 35 is communicated with the outside, the negative pressure state inside the negative pressure chamber 35 is relieved, the pull ring 44 is stopped pulling, the pressure relief plunger 41 closes the pressure relief through hole 40 again under the elastic force of the return spring 42, and the negative pressure push plate 36 moves leftwards and resets under the tensile force of the return spring 38, and then promote the pull rod 37 and move left, and then promote connecting rod 34 and be in tilt state again and reset, and then bent axle 33 clockwise upset ninety degrees, and then drive connecting plate 31 clockwise upset ninety degrees, tool storage device 30 seals tool placement channel 27 lower extreme again this moment, lead smooth push rod 59 through promoting and move right, and then drive and touch pressure closing plate 60 and move right and compress and touch pressure closing spring 61, and then open tool placement channel 27 upper end, take out the maintenance tool of connecting plate 31 inside through tool placement channel 27, stop the spacing to leading smooth push rod 59, touch and press closing plate 60 and promote left and accomplish and reset under the effect of touching pressure closing spring 61 elasticity.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a closed mine block terminal maintenance of equipment, includes the organism, its characterized in that: the machine body is internally provided with a power distribution cavity, the front end face of the machine body is internally provided with a maintenance closed cavity with a right opening, the maintenance closed cavity is internally provided with a safety protection door capable of moving left and right, the safety protection door can seal the power distribution cavity when positioned at a left limit, the left end face of the safety protection door is internally provided with a safety protection cavity with an upward opening and extending right, the maintenance closed cavity at a position corresponding to the safety protection cavity is fixedly provided with a transparent operation plate capable of being sealed, the front end face at the left side of the safety protection cavity is fixedly provided with a sealing guide plate extending backwards, the rear end face of the sealing guide plate is mutually abutted against the front end face of the transparent operation plate, the sealing guide plate is mutually matched with the transparent operation plate to seal the power distribution cavity, the upper wall face of the power distribution cavity is provided with a sealing overturning cavity with an upward opening, and a tool placing channel is communicated between the upper wall face of the sealing overturning, the upper wall surface of the sealed turning cavity is fixedly provided with a sealing ring, the inner wall surface of the upper end of the tool placing channel is communicated with a primary sealed cavity, the inner part of the primary sealed cavity is provided with a touch and press sealing plate capable of moving left and right, the tool placing channel is sealed by the touch and press sealing plate, a guide chute is communicated between the upper wall surface of the left side of the primary sealed cavity and the upper end surface of the machine body, the right side of the upper end surface of the touch and press sealing plate is provided with a locking cavity with a right opening, the inner wall surface of the primary sealed cavity at the left side of the touch and press sealing plate is provided with a touch and press plate capable of moving left and right, the left wall surface of the primary sealed cavity is fixedly provided with a signal generator, the right wall surface of the tool placing channel at the lower side of the primary sealed cavity is communicated with a gas exchange cavity extending right, a gas exchange device is arranged in, the fixed connecting plate that is equipped with of bent axle front end, the fixed instrument strorage device that is equipped with of connecting plate left end face, instrument strorage device can with the passageway is placed to the instrument and is sealed, upset chamber right side is equipped with the negative pressure chamber, negative pressure intracavity face is equipped with the negative pressure slurcam that can the horizontal slip, the fixed extension that is equipped with of negative pressure promotion board left end face is to upset intracavity's pull rod, negative pressure chamber right-hand member upside be equipped with the chamber of unloading in the organism, unload under the chamber wall with the negative pressure chamber intercommunication is equipped with the release through-hole between the wall, it is equipped with to extend to unload chamber lower wall face the inside release plunger of release through-hole, the release plunger can assist negative pressure chamber release.

2. The closed mine electrical box maintenance equipment of claim 1, wherein: the distribution chamber right side be equipped with switching power chamber in the organism, before the switching power chamber wall with the maintenance is closed and is equipped with rack sliding chamber between the chamber rear wall, rack sliding chamber left end with the distribution chamber communicates each other, rack sliding chamber right-hand member with organism right-hand member face communicates each other, rack sliding chamber inside is equipped with the switching rack that can the horizontal slip, terminal surface before the switching rack with safety protection door rear end face fixed connection, wall rotates on the switching power chamber and is equipped with the switching power shaft that upwards extends, switching power shaft lower extreme fixed be equipped with can with switching rack rear end face intermeshing's switching straight-teeth gear, switching power shaft upside the organism internal fixation is equipped with the switching motor, the switching power shaft with terminal surface power is connected under the switching motor.

3. The closed mine electrical box maintenance equipment of claim 1, wherein: the transparent operating panel is characterized in that bilaterally symmetrical extending holes are communicated between the front end face and the rear end face of the transparent operating panel, and soft rubber capable of being sealed is fixedly arranged on the rear end face of the transparent operating panel at the corresponding positions of the extending holes.

4. The closed mine electrical box maintenance equipment of claim 1, wherein: the fan is characterized in that a fan support is fixedly arranged on the inner wall surface of the air exchange cavity, a fan shaft extending rightwards is rotatably arranged on the right wall surface of the air exchange cavity, an air exchange motor is fixedly arranged in the machine body at a position corresponding to the right end of the fan shaft, the right end of the fan shaft is in power connection with the left end surface of the air exchange motor, a fan is fixedly arranged on the left end of the fan shaft, an air exchange pipeline is communicated between the right wall surface of the air exchange cavity and the outside, and an air exchange check valve is fixedly arranged inside the air exchange pipeline close.

5. The closed mine electrical box maintenance equipment of claim 4, wherein: the machine body internal fixation on scavenging motor right side is equipped with the vacuum pump, scavenging motor with power is connected with the negative pressure axle between the vacuum pump, the intercommunication is equipped with the blast pipe between vacuum pump up end and the external world, the vacuum pump down the terminal surface with the intercommunication is equipped with negative pressure pipe between the negative pressure chamber right side wall, is close to negative pressure chamber one end the inside fixed negative pressure check valve that is equipped with of negative pressure pipe, the negative pressure promote board left end face with fixed reset spring that is equipped with between the negative pressure chamber left side wall, be located the upset intracavity portion the outer disc hinged joint of bent axle has the connecting rod that extends to the upper right side, the connecting rod right-hand member with the connecting rod left end hinged joint.

6. The closed mine electrical box maintenance equipment of claim 1, wherein: the lower end face of the pressure relief plunger is fixedly provided with a guide sliding rod extending downwards, a return spring is fixedly arranged between the upper end face of the pressure relief plunger and the upper wall face of the pressure relief cavity, the upper end face of the machine body on the upper side of the pressure relief cavity is provided with a pull ring capable of assisting in stretching, and a pull rope is fixedly connected between the pull ring and the upper end face of the pressure relief plunger.

7. The closed mine electrical box maintenance equipment of claim 1, wherein: a touch pressure sealing spring is fixedly arranged between the right end face of the touch pressure sealing plate and the right wall face of the primary sealing cavity, a sliding guide push rod which passes through the sliding guide groove and extends out of the upper end face of the machine body is fixedly arranged on the right side of the upper end face of the touch pressure sealing plate, a touch press block is fixedly arranged on the left end face of the touch press plate, a signal touch press spring is fixedly arranged between the left wall face of the primary seal cavity and the left end face of the touch press plate, the signal generator is contacted with the touch block to control the driving of the ventilation motor, the upper wall surface of the primary sealing cavity at the left side of the touch sealing plate is communicated with an electromagnet core cavity extending upwards, an electromagnetic iron core is fixedly arranged on the upper wall surface of the electromagnetic core cavity, a locking head capable of sliding up and down is arranged on the inner wall surface of the electromagnetic core cavity, an electromagnetic spring is fixedly arranged between the upper end face of the locking head and the upper wall face of the electromagnet core cavity.