CN112072520A

CN112072520A - Built-in extinguishing device's auto-power-off switch board

Info

Publication number: CN112072520A
Application number: CN202010963514.2A
Authority: CN
Inventors: 祁漥
Original assignee: Pujiang Tanpu Electronic Technology Co ltd
Current assignee: Pujiang Tanpu Electronic Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2020-12-11

Abstract

The invention discloses an automatic power-off power distribution cabinet with a built-in fire extinguishing device, which comprises a main body, wherein a cooling cavity is arranged in the main body, a motor is fixedly connected to the inner wall of the lower side of the cooling cavity, the upper end surface of the motor is in power connection with a power output shaft, the upper end surface of the power output shaft is fixedly connected with a power bevel gear, a fan blade box is fixedly connected to the inner wall of the left side of the cooling cavity, and a fan blade cavity with a leftward opening is arranged in the fan blade box; when the electrical appliance is in a normal working state, the heat generated by the electrical appliance is discharged to the outside, so that the normal working state of the electrical appliance is ensured; when the electric appliance is self-ignited, the internal space of the main body is completely sealed, and the electric appliance is put out a fire through the dry ice; when the main part outside takes place the conflagration, cool down to main part surface through rotatory shower nozzle, release the inside dry ice of main part simultaneously and cool down to using electrical apparatus.

Description

Built-in extinguishing device's auto-power-off switch board

Technical Field

The invention relates to the related field of power distribution cabinets, in particular to an automatic power-off power distribution cabinet with a built-in fire extinguishing device.

Background

The electric appliance in the power distribution cabinet can generate heat in the using process, and the heat is discharged untimely, so that the temperature of the surface of the electric appliance is increased, the electric appliance can generate the situation of spontaneous combustion, and the power distribution cabinet can generate the situation of fire; when the environment that the switch board was located conflagration, untimely putting out a fire and cutting off the power supply to the switch board, can cause bigger potential safety hazard, the action of production interference to the work of personnel of putting out a fire simultaneously.

The automatic power-off power distribution cabinet with the built-in fire extinguishing device can solve the problems.

Disclosure of Invention

In order to solve the problems, the automatic power-off power distribution cabinet with the built-in fire extinguishing device is designed in the embodiment, and comprises a main body, wherein a cooling cavity is arranged in the main body, a motor is fixedly connected to the inner wall of the lower side of the cooling cavity, the upper end face of the motor is in power connection with a power output shaft, the upper end face of the power output shaft is fixedly connected with a power bevel gear, a fan blade box is fixedly connected to the inner wall of the left side of the cooling cavity, a fan blade cavity with a leftward opening is arranged in the fan blade box, the fan blade cavity extends leftwards to the left side of the main body, a through hole which is communicated with the fan blade cavity is arranged in the fan blade box, a positioning shaft is rotatably connected to the inner wall of the right side of the fan blade cavity, an exhaust fan blade is fixedly connected to the left end of the positioning shaft, the positioning shaft extends rightwards to, a linkage bevel gear is fixedly connected to the right end of the sliding guide sleeve and can be meshed with the power bevel gear; a dry refrigerator is arranged on the inner wall of the lower side of the cooling cavity, the dry refrigerator is positioned on the right side of the motor, a dry ice pump is fixedly connected to the inner wall of the right side of the cooling cavity, the dry ice pump is positioned on the upper side of the dry refrigerator, the lower end face of the dry ice pump is communicated with the upper end face of the dry refrigerator through a connecting pipe, a power input shaft is dynamically connected to the left end face of the dry ice pump, a linkage guide sleeve is connected to the left end of the power input shaft through a spline, a linking bevel gear is fixedly connected to the left end of the linkage guide sleeve, and the linking; a spring shaft is rotatably connected to the inner wall of the rear side of the cooling cavity, a spring cavity with a forward opening is arranged in the spring shaft, a linkage shaft is arranged in the spring cavity in a sliding mode, an electromagnetic spring is fixedly connected between the rear end face of the linkage shaft and the inner wall of the rear side of the spring cavity, a synchronous bevel gear is fixedly connected to the linkage shaft and can be meshed with the power bevel gear, a water tank is fixedly connected to the inner wall of the lower side of the cooling cavity and is located on the front side of the motor, a water pump is fixedly connected to the upper end face of the water tank, a power relay shaft is in power connection with the rear end face of the water pump, a driving bevel gear is fixedly connected to the power relay shaft, and the power relay shaft extends backwards and; the motor is started, the power output shaft is driven to rotate, the power bevel gear is driven to rotate through the power output shaft, the sliding guide sleeve is driven to rotate through the linkage bevel gear, the exhaust fan blades are driven to rotate through the positioning shaft, and heat in the cooling cavity is pumped to the outer side of the main body through the fan blade cavity and the communication hole.

Beneficially, a guide block is fixedly connected to the inner wall of the left side of the cooling cavity, the guide block is located on the upper side of the fan blade box, a guide groove with a downward opening is formed in the guide block, a cable switch is fixedly connected to the inner wall of the left side of the guide groove, a heat absorption block is fixedly connected to the right end face of the guide block, a guide hole is formed in the heat absorption block, a push plate is slidably arranged in the guide hole, an easy-boiling liquid is arranged between the right end face of the push plate and the inner wall of the left side of the heat absorption block, a push rod is fixedly connected to the left end face of the push plate, the push rod extends leftwards into the guide groove and is in sliding fit with the left wall of the guide block, a synchronizing rod is fixedly connected to one end of the push rod in the guide groove, a sliding annular block is slidably arranged on the outer contour surface of the outer circle; the liquid that easily boils is heated volatilizees and makes the liquid volume grow that easily boils, and then promotes the push pedal and remove, and then promotes the synchronizing bar through the push rod and remove, and then drives slip ring shape piece and remove, and then shelters from the intercommunicating pore, and then makes the cooling chamber be in complete enclosed state.

Beneficially, a placing box is fixedly connected to the inner wall of the left side of the cooling cavity, the placing box is located on the upper side of the dry ice pump, a placing cavity which is communicated from left to right is arranged in the placing box, the placing cavity extends rightwards to the right side of the main body, a positioning rod is fixedly connected between the front inner wall and the rear inner wall of the placing cavity, a rotating hinge is rotatably connected to the positioning rod, a sliding plate is arranged on the inner wall of the lower side of the placing cavity in a butting mode, the sliding plate extends leftwards and is fixedly connected to the right end face of the synchronizing rod, the sliding plate is fixedly connected to a fixed block on the upper end face of one section of the placing cavity, the fixed block is located on the right side of the rotating hinge, an engaging handle is fixedly connected to the front end face of the fixed block, a linkage rod is hinged to the engaging handle, the free end of the linkage rod is hinged to, a box door shaft is fixedly connected between the upper inner side wall and the lower inner side wall of the placing cavity, the box door shaft is positioned on the right side of the sliding plate, a box door is rotatably connected onto the box door shaft, a cable is fixedly connected onto the upper end surface of the placing box, the cable extends upwards to the upper side of the main body, the cable is electrically connected with the electrical appliance and the cable switch, a spray pipe is communicated onto the upper end surface of the dry ice pump, and the spray pipe extends upwards to be communicated with the placing cavity; the synchronous rod moves to drive the sliding plate to move, then the fixed block drives the connecting handle to move, the linkage rod drives the rotating hinge to rotate, and the sliding plate moves and simultaneously drives the electric appliance to move.

Beneficially, a rotating shaft is rotatably connected to the inner wall of the upper side of the cooling cavity, the rotating shaft extends upwards to the upper side of the main body, a spray hole is fixedly connected to the upper end face of the rotating shaft, a spray hole with a leftward opening is formed in the spray hole, a communicating cavity which is communicated with the rotating shaft up and down is formed in the rotating shaft, the communicating cavity extends upwards to communicate with the spray hole, a smoke sensor is fixedly connected to the upper end face of the spray head, the smoke sensor is electrically connected with the electromagnetic spring, a connecting straight pipe is rotatably connected to the lower end of the rotating shaft, the connecting straight pipe is communicated with the communicating cavity, the connecting straight pipe extends downwards to be fixedly connected to the upper end face of the water pump, a driven bevel gear is fixedly connected to a section of the rotating shaft in the cooling cavity, a synchronizing shaft is rotatably connected to the inner wall of, the driving gear is meshed with the driven bevel gear, the driven bevel gear is fixedly connected to the lower end face of the synchronizing shaft, and the driven bevel gear is meshed with the driving bevel gear; the universal driving shaft rotates, the driving bevel gear is driven to rotate through the power relay shaft, the synchronizing shaft is driven to rotate through the driven bevel gear, the driven bevel gear is driven to rotate through the driving gear, and the sprayer is driven to rotate through the rotating shaft.

Beneficially, a water tank is arranged in the water tank, a water pipe is arranged on the lower end face of the water pump in a communication mode, and the water pipe extends downwards into the water tank; the water pump starts, and then inhales the water in the pond through the water pipe, and then spouts to the main part around through connecting straight tube, intercommunication chamber, orifice, and then cools down the surface of main part.

Beneficially, a synchronizing plate is fixedly connected to the right end face of the sliding ring block, a guide sleeve plate and a linkage plate are fixedly connected to the lower end face of the synchronizing plate, the guide sleeve plate is located on the left side of the linkage plate, the guide sleeve plate extends downwards and is rotatably connected to the excircle profile of the sliding guide sleeve, and the linkage plate extends downwards and is rotatably connected to the excircle profile of the linkage guide sleeve; the sliding ring block moves, and then the synchronous plate drives the guide sleeve plate and the linkage plate to move, so that the sliding guide sleeve and the linkage guide sleeve are driven to move.

The invention has the beneficial effects that: when the electrical appliance is in a normal working state, the heat generated by the electrical appliance is discharged to the outside, so that the normal working state of the electrical appliance is ensured; when the electric appliance is self-ignited, the internal space of the main body is completely sealed, and the electric appliance is put out a fire through the dry ice; when the main part outside takes place the conflagration, cool down to main part surface through rotatory shower nozzle, release the inside dry ice of main part simultaneously and cool down to using electrical apparatus.

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 diagram of the overall structure of an automatic power-off distribution cabinet with a built-in fire extinguishing apparatus according to 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 in FIG. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1 to 3, for the sake of convenience of description, the following orientations are now defined: 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 an automatic power-off power distribution cabinet with a built-in fire extinguishing device, which comprises a main body 11, wherein a cooling cavity 12 is arranged in the main body 11, a motor 14 is fixedly connected to the inner wall of the lower side of the cooling cavity 12, the upper end surface of the motor 14 is in power connection with a power output shaft 15, the upper end surface of the power output shaft 15 is fixedly connected with a power bevel gear 16, a fan blade box 53 is fixedly connected to the inner wall of the left side of the cooling cavity 12, a fan blade cavity 50 with a leftward opening is arranged in the fan blade box 53, the fan blade cavity 50 extends leftwards to the left side of the main body 11, a through hole 52 which is vertically communicated is arranged in the fan blade box 53, the through hole 52 is communicated with the fan blade cavity 50, a positioning shaft 54 is rotatably connected to the inner wall of the right side of the fan blade cavity 50, the left end of the positioning shaft 54 is fixedly connected with an exhaust fan blade 51, the positioning, a linkage bevel gear 13 is fixedly connected to the right end of the sliding guide sleeve 24, and the linkage bevel gear 13 can be meshed with the power bevel gear 16; a dry refrigerator 20 is arranged on the inner wall of the lower side of the cooling cavity 12, the dry refrigerator 20 is positioned on the right side of the motor 14, a dry ice pump 23 is fixedly connected to the inner wall of the right side of the cooling cavity 12, the dry ice pump 23 is positioned on the upper side of the dry refrigerator 20, the lower end face of the dry ice pump 23 is communicated with the upper end face of the dry refrigerator 20 through a connecting pipe 22, a power input shaft 21 is dynamically connected to the left end face of the dry ice pump 23, a linkage guide sleeve 19 is connected to the left end of the power input shaft 21 through a spline, a linking bevel gear 18 is fixedly connected to the left end of the linkage guide sleeve 19, and the linking bevel gear; a spring shaft 56 is rotatably connected to the inner wall of the rear side of the cooling cavity 12, a spring cavity 58 with a forward opening is arranged in the spring shaft 56, a linkage shaft 17 is slidably arranged in the spring cavity 58, an electromagnetic spring 57 is fixedly connected between the rear end surface of the linkage shaft 17 and the inner wall of the rear side of the spring cavity 58, a synchronous bevel gear 59 is fixedly connected to the linkage shaft 17, the synchronous bevel gear 59 can be meshed with the power bevel gear 16, a water tank 60 is fixedly connected to the inner wall of the lower side of the cooling cavity 12, the water tank 60 is positioned at the front side of the motor 14, a water pump 63 is fixedly connected to the upper end surface of the water tank 60, a power relay shaft 65 is dynamically connected to the rear end surface of the water pump 63, a drive bevel gear 64 is fixedly connected to the power relay shaft 65, and the power relay shaft 65 is connected to; the motor 14 is started, and then the power output shaft 15 is driven to rotate, and then the power bevel gear 16 is driven to rotate through the power output shaft 15, and then the sliding guide sleeve 24 is driven to rotate through the linkage bevel gear 13, and then the exhaust fan blade 51 is driven to rotate through the positioning shaft 54, and then the heat in the cooling chamber 12 is pumped to the outside of the main body 11 through the fan blade chamber 50 and the communication hole 52.

Advantageously, a guide block 42 is fixed to the inner wall of the left side of the cooling chamber 12, the guide block 42 is located on the upper side of the vane box 53, a guide groove 43 with a downward opening is arranged in the guide block 42, a cable switch 44 is fixedly connected on the inner wall of the left side of the guide groove 43, the right end face of the guide block 42 is fixedly connected with a heat absorption block 38, a guide hole 41 is arranged in the heat absorption block 38, a push plate 40 is arranged in the guide hole 41 in a sliding manner, an easy-boiling liquid 39 is arranged between the right end surface of the push plate 40 and the inner wall of the left side of the heat absorption block 38, a push rod 45 is fixedly connected on the left end surface of the push plate 40, the push rod 45 extends leftwards into the guide groove 43 and is in sliding fit with the left wall of the guide block 42, a synchronous rod 46 is fixedly connected to one end of the push rod 45 in the guide groove 43, a sliding ring-shaped block 49 is slidably arranged on the outer circle profile surface of the fan blade box 53, and the synchronous rod 46 extends downwards and is fixedly connected to the upper end surface of the sliding ring-shaped block 49; the easy boiling liquid 39 is heated and volatilized to ensure that the size of the easy boiling liquid 39 is increased, and then the push plate 40 is pushed to move, and then the push rod 45 pushes the synchronizing rod 46 to move, so that the sliding ring-shaped block 49 is driven to move, and then the communicating hole 52 is shielded, and then the cooling cavity 12 is in a completely closed state.

Beneficially, a placing box 27 is fixedly connected to an inner wall of the left side of the cooling cavity 12, the placing box 27 is located at the upper side of the dry ice pump 23, a placing cavity 28 which is through from left to right is arranged in the placing box 27, the placing cavity 28 extends to the right side of the main body 11, a positioning rod 36 is fixedly connected between the front inner wall and the rear inner wall of the placing cavity 28, a rotating hinge 37 is rotatably connected to the positioning rod 36, a sliding plate 47 is abutted against the inner wall of the lower side of the placing cavity 28, the sliding plate 47 extends to the left and is fixedly connected to the right end face of the synchronizing rod 46, the sliding plate 47 is fixedly connected to a fixed block 33 on the upper end face of one section of the placing cavity 28, the fixed block 33 is located at the right side of the rotating hinge 37, an engaging handle 34 is fixedly connected to the front end face of the fixed block 33, a linkage rod 35 is hinged to the engaging handle 34, and the free end, an electrical appliance 31 is fixedly connected to the sliding plate 47, the electrical appliance 31 is located on the right side of the fixed block 33, a door shaft 30 is fixedly connected between the upper inner side wall and the lower inner side wall of the placing cavity 28, the door shaft 30 is located on the right side of the sliding plate 47, a door 29 is rotatably connected to the door shaft 30, a cable 32 is fixedly connected to the upper end surface of the placing box 27, the cable 32 extends upwards to the upper side of the main body 11, the cable 32 is electrically connected with the electrical appliance 31 and the cable switch 44, a spray pipe 26 is communicated with the upper end surface of the dry ice pump 23, and the spray pipe 26 extends upwards to be communicated with the placing cavity 28; the synchronous rod 46 moves to drive the sliding plate 47 to move, and further the fixing block 33 drives the connecting handle 34 to move, and further the linkage rod 35 drives the rotating hinge 37 to rotate, and the sliding plate 47 moves to drive the electrical appliance 31 to move.

Beneficially, a rotating shaft 70 is rotatably connected to the inner wall of the upper side of the cooling cavity 12, the rotating shaft 70 extends upwards to the upper side of the main body 11, a spraying hole 74 is fixedly connected to the upper end surface of the rotating shaft 70, a spraying hole 74 with a leftward opening is formed in the spraying hole 74, a communicating cavity 71 which is through from top to bottom is formed in the rotating shaft 70, the communicating cavity 71 extends upwards to communicate with the spraying hole 74, a smoke sensor 73 is fixedly connected to the upper end surface of the spraying head 72, the smoke sensor 73 is electrically connected to the electromagnetic spring 57, a connecting straight pipe 67 is rotatably connected to the lower end of the rotating shaft 70, the connecting straight pipe 67 is communicated with the communicating cavity 71, the connecting straight pipe 67 extends downwards to be fixedly connected to the upper end surface of the water pump 63, a driven bevel gear 69 is fixedly connected to a section of the rotating shaft 70 in the cooling, the synchronizing shaft 68 is located at the rear side of the rotating shaft 70, a driving gear 75 is fixedly connected to the synchronizing shaft 68, the driving gear 75 is engaged with the driven bevel gear 69, a driven bevel gear 66 is fixedly connected to the lower end surface of the synchronizing shaft 68, and the driven bevel gear 66 is engaged with the driving bevel gear 64; the linkage shaft 17 rotates to drive the driving bevel gear 64 to rotate through the power relay shaft 65, and then drive the synchronizing shaft 68 to rotate through the driven bevel gear 66, and then drive the driven bevel gear 69 to rotate through the driving gear 75, and then drive the spray head 72 to rotate through the rotating shaft 70.

Beneficially, a water tank 62 is arranged in the water tank 60, a water pipe 61 is arranged on the lower end face of the water pump 63 in a communicating mode, and the water pipe 61 extends downwards into the water tank 62; the water pump 63 is started, and the water in the water tank 62 is sucked through the water pipe 61, and is sprayed to the periphery of the main body 11 through the connecting straight pipe 67, the communicating cavity 71 and the spray holes 74, so that the temperature of the outer surface of the main body 11 is reduced.

Beneficially, a synchronizing plate 48 is fixedly connected to the right end face of the sliding ring block 49, a sleeve guide plate 55 and a linkage plate 25 are fixedly connected to the lower end face of the synchronizing plate 48, the sleeve guide plate 55 is located on the left side of the linkage plate 25, the sleeve guide plate 55 extends downward and is rotatably connected to the outer circle profile of the sliding guide sleeve 24, and the linkage plate 25 extends downward and is rotatably connected to the outer circle profile of the linkage guide sleeve 19; the sliding ring block 49 moves, and then the synchronous plate 48 drives the guide sleeve plate 55 and the linkage plate 25 to move, and further drives the sliding guide sleeve 24 and the linkage guide sleeve 19 to move.

The following describes in detail the use steps of an automatic power-off distribution cabinet with built-in fire extinguishing apparatus in the present document with reference to fig. 1 to 3: at the beginning, the linkage bevel gear 13 is meshed with the power bevel gear 16, the cable switch 44 is in a connected state, the connecting bevel gear 18 and the synchronous bevel gear 59 are not meshed with the power bevel gear 16, the electromagnetic spring 57 is in a natural telescopic state, the rotating hinge 37 is in a vertical state, the easy-boiling liquid 39 is in a cooling state, the sliding ring block 49 is positioned at the right limit position, the refrigerator-drier 20 is filled with dry ice, and the water pool 62 is filled with water.

The electric appliance 31 is normally powered by the cable 32, so that the electric appliance 31 is in a working state, the motor 14 is started, the power output shaft 15 is driven to rotate, the power bevel gear 16 is driven to rotate by the power output shaft 15, the sliding guide sleeve 24 is driven to rotate by the linkage bevel gear 13, the exhaust fan blades 51 are driven to rotate by the positioning shaft 54, heat in the cooling cavity 12 is pumped to the outer side of the main body 11 through the fan blade cavity 50 and the communication hole 52, and the heat dissipation effect of the electric appliance 31 is achieved; when the electric appliance 31 in the main body 11 has a fault and spontaneously ignites, heat is diffused to the outer surface of the heat absorption block 38 through the cooling cavity 12, and then is absorbed by the easy-boiling liquid 39, so that the easy-boiling liquid 39 volatilizes to enlarge the volume of the easy-boiling liquid 39, and then the push plate 40 is pushed to move leftwards, and then the push rod 45 pushes the synchronous rod 46 to move, and then the cable switch 44 is closed to disconnect the circuit between the cable 32 and the electric appliance 31, the synchronous rod 46 drives the sliding ring block 49 to move while moving, and then the communication hole 52 is closed, so that the cooling cavity 12 is in a completely closed state, the synchronous rod 46 drives the sliding plate 47 to move while moving, and then the fixing block 33 drives the connecting handle 34 to move, and then the linkage rod 35 drives the rotating hinge 37 to rotate, so that the placing cavity 28 is communicated with the cooling cavity 12, and the electric appliance 31 is driven to move while the sliding, thereby making the placing cavity 28 have enough fire extinguishing space; the sliding ring block 49 moves leftwards and simultaneously drives the synchronizing plate 48 to move, the synchronizing plate 48 drives the guide sleeve plate 55 and the linkage plate 25 to move, the sliding guide sleeve 24 and the linkage guide sleeve 19 to move, the linkage bevel gear 13 is not meshed with the power bevel gear 16, the linkage bevel gear 18 is meshed with the power bevel gear 16, the linkage guide sleeve 19 drives the power input shaft 21 to rotate, the dry ice pump 23 is driven to start, dry ice in the dry refrigerator 20 is sucked through the connecting pipe 22, and the dry ice is sprayed into the placing cavity 28 through the spray pipe 26 to extinguish the fire of the electric appliance 31; when a fire disaster occurs outside the main body 11 to generate dense smoke, the smoke sensor 73 generates an electric signal to control the electromagnetic spring 57 to compress, so as to drive the linkage shaft 17 to slide backwards, further to enable the synchronous bevel gear 59 to be meshed with the power bevel gear 16, further to drive the synchronous bevel gear 59 to rotate through the power bevel gear 16, further to drive the power relay shaft 65 to rotate through the linkage shaft 17, further to drive the water pump 63 to start, further to suck water in the water tank 62 through the water pipe 61, further to spray the water from the spray holes 74 through the connecting straight pipe 67 and the communicating cavity 71, and further to cool the outer surface of the main body 11; the power relay shaft 65 rotates and simultaneously drives the driving bevel gear 64 to rotate, the driven bevel gear 66 drives the synchronizing shaft 68 to rotate, the driving gear 75 drives the driven bevel gear 69 to rotate, the rotating shaft 70 drives the spray nozzle 72 to rotate, and therefore the periphery of the main body 11 is cooled; meanwhile, the easy-boiling liquid 39 is heated to volatilize and the dry ice pump 23 is started to cut off the power of the electrical appliance 31 in the main body 11 and reduce the temperature;

and after the fire is extinguished, the power distribution cabinet is restored to the initial state.

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 built-in extinguishing device's auto-power-off switch board, includes the main part, its characterized in that: a cooling cavity is arranged in the main body, a motor is fixedly connected to the inner wall of the lower side of the cooling cavity, the upper end face of the motor is in power connection with a power output shaft, a power bevel gear is fixedly connected to the upper end face of the power output shaft, a fan blade box is fixedly connected to the inner wall of the left side of the cooling cavity, a fan blade cavity with a left opening is arranged in the fan blade box, the fan blade cavity extends to the left side of the main body leftwards, a through hole which is communicated up and down is arranged in the fan blade box and communicated with the fan blade cavity, a positioning shaft is rotatably connected to the inner wall of the right side of the fan blade cavity, an exhaust fan blade is fixedly connected to the left end of the positioning shaft, the positioning shaft extends to the right side of the fan blade box rightwards, a sliding guide sleeve is connected to the; a dry refrigerator is arranged on the inner wall of the lower side of the cooling cavity, the dry refrigerator is positioned on the right side of the motor, a dry ice pump is fixedly connected to the inner wall of the right side of the cooling cavity, the dry ice pump is positioned on the upper side of the dry refrigerator, the lower end face of the dry ice pump is communicated with the upper end face of the dry refrigerator through a connecting pipe, a power input shaft is dynamically connected to the left end face of the dry ice pump, a linkage guide sleeve is connected to the left end of the power input shaft through a spline, a linking bevel gear is fixedly connected to the left end of the linkage guide sleeve, and the linking; the utility model discloses a cooling chamber, including cooling chamber, spring chamber, universal driving shaft, universal.

2. The automatic power-off power distribution cabinet with the built-in fire extinguishing apparatus according to claim 1, characterized in that: the cooling chamber left side inner wall goes up the rigid coupling and has the guide block, the guide block is located the upside of flabellum case, be equipped with the decurrent guide way of opening in the guide block, the rigid coupling has the cable switch on the guide way left side inner wall, the rigid coupling has the heat absorption piece on the guide block right-hand member face, be equipped with the guiding hole in the heat absorption piece, the slip is equipped with the push pedal in the guiding hole, the push pedal right-hand member face with be equipped with easy boiling liquid between the heat absorption piece left side inner wall, the rigid coupling has the push rod on the push pedal left end face, the push rod extends to left in the guide way and sliding fit in the guide block left wall, the push rod in one of guide way serves the rigid coupling and has the synchronizing bar, the slip ring shape piece is equipped with on the excircle profile face of flabellum case, the synchronizing bar downwardly extending rigid.

3. The automatic power-off power distribution cabinet with the built-in fire extinguishing apparatus according to claim 1, characterized in that: a placing box is fixedly connected to the inner wall of the left side of the cooling cavity, the placing box is positioned on the upper side of the dry ice pump, a placing cavity which is communicated from left to right is arranged in the placing box, the placing cavity extends rightwards to the right side of the main body, a positioning rod is fixedly connected between the front inner wall and the rear inner wall of the placing cavity, a rotating hinge is rotatably connected to the positioning rod, a sliding plate is arranged on the inner wall of the lower side of the placing cavity in a propping manner, the sliding plate extends leftwards and is fixedly connected to the right end face of the synchronizing rod, the sliding plate is fixedly connected to a fixed block on the upper end face of one section of the placing cavity, the fixed block is positioned on the right side of the rotating hinge, an engaging handle is fixedly connected to the front end face of the fixed block, a linkage rod is hinged to the engaging handle, the free end of the linkage rod is hinged to, the utility model discloses a cable switch, including placing the chamber, the chamber is characterized in that the rigid coupling is equipped with the case door axle between the upper and lower inside wall of placing the chamber, the chamber door axle is located the right side of sliding plate, the epaxial rotation of chamber door is connected with the chamber door, the rigid coupling is equipped with the cable on placing the up end of case, the cable upwards extends to the main part upside, the cable with electrical apparatus cable switch electric connection, the intercommunication is equipped with the spray tube on the dry ice pump up end, the spray tube upwards extends the intercommunication place the chamber.

4. The automatic power-off power distribution cabinet with the built-in fire extinguishing apparatus according to claim 1, characterized in that: the inner wall of the upper side of the cooling cavity is rotatably connected with a rotating shaft, the rotating shaft extends upwards to the upper side of the main body, the upper end face of the rotating shaft is fixedly connected with a spray hole, a spray hole with a leftward opening is arranged in the spray hole, a communicating cavity which is communicated with the rotating shaft up and down is arranged in the rotating shaft, the communicating cavity extends upwards to be communicated with the spray hole, the upper end face of the spray head is fixedly connected with a smoke sensor, the smoke sensor is electrically connected with the electromagnetic spring, the lower end of the rotating shaft is rotatably connected with a connecting straight pipe, the connecting straight pipe is communicated with the communicating cavity, the connecting straight pipe extends downwards to be fixedly connected with the upper end face of the water pump, a section of the rotating shaft, which is positioned in the cooling cavity, is fixedly connected with a driven bevel gear, the inner wall of the, the driving gear is meshed with the driven bevel gear, the driven bevel gear is fixedly connected to the lower end face of the synchronizing shaft, and the driven bevel gear is meshed with the driving bevel gear.

5. The automatic power-off power distribution cabinet with the built-in fire extinguishing apparatus according to claim 1, characterized in that: the water tank is internally provided with a water tank, the lower end face of the water pump is communicated with a water pipe, and the water pipe extends downwards to the inside of the water tank.

6. The automatic power-off power distribution cabinet with the built-in fire extinguishing apparatus according to claim 2, characterized in that: the sliding ring block is characterized in that a synchronizing plate is fixedly connected to the right end face of the sliding ring block, a sleeve guiding plate and a linkage plate are fixedly connected to the lower end face of the synchronizing plate, the sleeve guiding plate is located on the left side of the linkage plate, the sleeve guiding plate extends downwards to be rotatably connected to the outer circle outline of the sliding guide sleeve, and the linkage plate extends downwards to be rotatably connected to the outer circle outline of the linkage guide sleeve.