Mining explosion-proof high-voltage combined vacuum power distribution device

Abstract

The utility model provides a mining explosion-proof high-voltage combined vacuum power distribution device, and belongs to the technical field of mining high-voltage vacuum combined power distribution. The problem that the failure rate of cables or buses of an existing combined power distribution device is high is solved. Comprising a row of cabinet bodies which are connected with one another, each cabinet body is composed of unit cavities installed on a shell unit frame, the row of cabinet bodies comprises a control cabinet, a plurality of middle cabinets and side cabinets, and a plurality of cable connectors are installed on the side edge of the control cabinet and used for being connected with external equipment; the middle cabinet is a feeder cabinet body and comprises a cabinet body used for installing a main circuit breaker and a branch circuit breaker and a plurality of cabinet bodies used for installing common circuit breakers. A high-voltage mutual inductor is installed in a unit cavity of the side cabinet to serve as an incoming line cabinet body, a cable connector is installed on the outer side of the unit cavity of the side cabinet and used for being connected with an external power source, and an outgoing line of the incoming line cabinet body is connected with an incoming line of each feeder line cabinet body through a tubular bus system. The high-voltage vacuum distribution box is applied to high-voltage vacuum distribution under mines.

Description

Technical Field

[0001] The utility model provides a mine explosion-proof high-voltage combined vacuum distribution device, belonging to the technical field of mine high-voltage vacuum distribution. Background Art

[0002] With the continuous development of mining levels, the modernization level of the equipment and systems used in the coal mining industry is getting higher and higher. The construction of "intelligent mines" is becoming more and more urgent, and the requirement for equipment integration is getting higher and higher. The original single equipment occupies a large space, can only be operated individually, and external connecting wires are required between equipment, which is inconvenient for operation, management and maintenance.

[0003] Therefore, combined high-voltage vacuum distribution devices have gradually been proposed. The current high-voltage combined vacuum distribution devices have the following several forms. For example, a mine explosion-proof high-voltage vacuum combined distribution device proposed in application number 201810446079.9, or a high-voltage combined distribution device proposed in application number 201220620598.0, or a mine explosion-proof and intrinsically safe high-voltage combined vacuum distribution device proposed in application number 202320162690.5. The above combined vacuum distribution devices all integrate different distribution devices in one or more cavities and integrate the shells of multiple devices together to form a combined integrated device, which solves the problems of large space occupation by single equipment and inconvenient external wiring. However, the above combined vacuum distribution devices do not consider the problems of cable or busbar failures. Although they adopt a combined form, the failure rate of cables or busbars is relatively high, and intelligent control of the equipment has not been realized. Summary of the Utility Model

[0004] In order to overcome the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide an improvement in the hardware structure of a mine explosion-proof high-voltage combined vacuum distribution device.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a mine explosion-proof high-voltage combined vacuum distribution device, including a row of interconnected cabinets. Each cabinet is composed of unit cavities installed on a shell unit rack. A row of cabinets includes a control cabinet, multiple intermediate cabinets and side cabinets. Multiple cable connectors are installed on the side of the control cabinet for connecting with external equipment; the intermediate cabinets are feeder cabinets, including a cabinet for installing a main circuit breaker and multiple cabinets for installing ordinary circuit breakers; a high-voltage transformer is installed in the unit cavity of the side cabinet, serving as an incoming line cabinet. Cable connectors are installed outside the unit cavity of the side cabinet for connecting to an external power supply. The outgoing lines of the incoming line cabinet are respectively connected to the incoming lines of each feeder cabinet through a tubular busbar system.

[0006] The intermediate cabinet and the side cabinet are both equipped with comprehensive protection devices for monitoring and protecting the equipment inside the cabinet;

[0007] A control module is installed in the control cabinet, and a centralized display screen and an authentication and recognition module are installed on the front of the control cabinet. The control module is embedded with a Mine Hong operating system, and the control module is connected to the display screen, the authentication and recognition module and the integrated protection device in each cabinet through cables.

[0008] The authentication and recognition module includes an iris recognition module and / or a face recognition module.

[0009] The unit cavity comprises an upper unit cavity and a lower unit cavity, wherein the upper unit cavity and the lower unit cavity of the middle cabinet and the side cabinet are both installed with a front door cover and a rear door cover, the front door cover is installed with a display, a circuit breaker isolation rocker, a locking rocker, an isolation observation window, an energy storage rocker, a combination button and an isolating switch opening and closing button, a circuit breaker opening and closing button, and a leakage test and reset button, an integrated circuit board, a comprehensive protection device, internal wiring terminals of the combination button and the internal wiring terminals of the display, the isolating switch opening and closing button, the circuit breaker opening and closing button, and the leakage test and reset button are installed in the front door cover, and the integrated circuit board is respectively connected to the wiring terminals of the above-mentioned buttons, the integrated protection device and the display.

[0010] The front door cover is also provided with a screw cover plate, which is connected to the screw cover plate via an interlocking mechanism, so that the connecting screw holes on the front door cover are blocked by the screw cover plate when the circuit breaker is in the closed state, and the fastening screws on the front door cover cannot be loosened.

[0011] The interlocking mechanism includes a door lock coupling assembly and a rotatable gate plate, wherein the gate plate is mounted on the inner surface of the front door cover, and the door lock coupling assembly includes a rotating shaft, and two bearings are respectively connected to the two ends of the rotating shaft, and an outer toggle piece and an inner toggle piece are respectively connected to the two bearings, and a flat square is also provided on the bearing connected to the outer toggle piece, wherein the outer toggle piece is located on the outer surface of the front door cover, and the inner toggle piece is located on the inner surface of the front door cover;

[0012] The front door cover is provided with a circle of connecting screw holes around it, a plurality of shield positioning pins are also installed on the front door cover, a circle of through holes is provided around the screw cover plate, and shield positioning holes corresponding to the shield positioning pins are also provided on the screw cover plate;

[0013] A circuit breaker swing arm is installed on the circuit breaker, and the end of the circuit breaker swing arm can lift the gate plate to flip it to a horizontal plane in the closed state;

[0014] The screw cover plate is provided with a groove which is matched with the flat square. In the closed state of the circuit breaker, the groove is perpendicular to the flat square, and the screw cover plate covers the connecting screw holes on the front door cover. In the open state of the circuit breaker, the groove is parallel to the flat square, and the screw cover plate can move a corresponding distance along the length of the groove, so that the through holes on the screw cover plate correspond to the connecting screw holes on the front door cover one by one.

[0015] A mechanical interlock device is arranged between the front door cover of the unit cavity where the high-voltage mutual inductor is located and the high-voltage mutual inductor assembly. The high-voltage mutual inductor assembly includes a trolley installed in the unit cavity. A high-voltage mutual inductor is installed on the trolley. The back of the trolley is the copper contact of the high-voltage mutual inductor. A cylinder is installed on one side of the trolley.

[0016] The mechanical interlock device includes an interlock hook, a pin shaft, a limit screw, a bracket and a tension spring. The bracket is installed between the high-voltage mutual inductor assembly and the front door cover.

[0017] The top of the bracket is rotationally connected to the interlock hook through the pin shaft. A tension spring is connected between the interlock hook and the bracket. A limit screw for limiting the tension spring is also installed on the bracket.

[0018] A door nose is arranged inside the front door cover and is matched with the interlock hook.

[0019] When the high-voltage mutual inductor assembly is in the working position, the door nose and the interlock hook are hooked to each other, and the cylinder is in a separated state from the interlock hook. When the high-voltage mutual inductor assembly is withdrawn and powered off, the cylinder presses down the interlock hook, and the door nose and the interlock hook are separated.

[0020] The upper unit cavity and the lower unit cavity in the cabinet where the main circuit breaker and the general circuit breaker are installed have the same structure. The interior of each unit cavity is divided into front and rear chambers. A partition is installed between the front and rear chambers. A static contact seat is installed on the partition for passing through the Z-shaped static contact of the circuit breaker. The front chamber is the circuit breaker installation cavity, and the rear chamber is the wiring cavity.

[0021] Wheel rails are installed on both sides of the bottom plate of the front chamber. A circuit breaker positioning socket is installed at the front end of one side of the wheel rails. A circuit breaker wheel guard is installed outside the wheel rails on this side. A grounding seat and a heating and dehumidifying device seat are also installed on the bottom plate of the front chamber. The main circuit breaker or the general circuit breaker is installed and fixed in the front chamber through the wheel rails. The Z-shaped static contact passes through the through hole opened on the static contact seat and extends into the rear chamber. A tubular busbar system is installed on the Z-shaped static contact, and the connection of the incoming and outgoing lines between two unit cavities is realized through the tubular busbar system.

[0022] A combined camera is installed on the top plate above the circuit breaker in the front chamber. The combined camera is fixed on the top plate through a camera base. A connecting plate is fixed on the camera base through a rotating shaft. A pressing block is installed between the rotating shaft and the connecting plate. High-definition cameras and network cameras are respectively fixed at both ends of the connecting plate. An LED lamp for lighting is installed on the connecting plate at the middle position between the high-definition camera and the network camera.

[0023] The tubular busbar system includes joints and tubular busbars, and the joints are respectively connected to the corresponding static contacts of the circuit breaker.

[0024] The beneficial effects of the present utility model compared with the prior art are as follows:

[0025] 1. The equipment is highly integrated, improving the space utilization rate of the underground chamber;

[0026] 2. The workload of transporting, installing, and wiring the power supply equipment is reduced, improving the installation efficiency of the substation;

[0027] 3. The combined installation is eliminated, greatly reducing the failure rate of cables or busbars;

[0028] 4. Technologies such as fully insulated three-position circuit breakers and fully insulated tubular busbars are adopted to improve the safety of the equipment;

[0029] 5. Technologies such as face and iris recognition and MineHong interconnection are adopted to improve the intelligent level of the equipment, truly contributing to the development of intelligent mines. Description of the Drawings

[0030] The following further describes the present utility model with reference to the drawings:

[0031] Figure 1 is a schematic structural diagram of the high-voltage combined vacuum distribution device of the present utility model;

[0032] Figure 2 is for removing Figure 1 the front door cover in;

[0033] Figure 3 is a schematic plan structural diagram of the assembly of the ordinary circuit breaker housing of the present utility model;

[0034] Figure 4 is a schematic frame structural diagram of the assembly of the ordinary circuit breaker housing of the present utility model;

[0035] Figure 5 is a schematic structural diagram of the combined camera of the present utility model;

[0036] Figure 6 is a schematic front structural diagram of the front door cover of the present utility model;

[0037] Figure 7 This is a schematic diagram of the back structure of the front door cover of the utility model;

[0038] Figure 8 This is a schematic diagram of the connection structure of the tubular busbar and the joint of the utility model;

[0039] Figure 9 This is a structural schematic diagram of the screw cover plate of the utility model;

[0040] Figure 10 It is a structural schematic diagram of the interlocking mechanism of the utility model;

[0041] Figure 11 This is a schematic diagram of the structure of the door lock coupling assembly of the utility model;

[0042] Figure 12 for Figure 10 The enlarged structural diagram at A in the middle;

[0043] Figure 13 It is a structural schematic diagram of the new high-voltage transformer assembly of the present utility model;

[0044] Figure 14 This is a schematic diagram of the structure of the mechanical interlocking device of the utility model;

[0045] Figure 15 It is the circuit connection principle diagram of the utility model;

[0046] In the figure: 1 is a control cabinet, 2 is an intermediate cabinet, 3 is a side cabinet, 4 is a high-voltage transformer, 5 is a main circuit breaker, 6 is a common circuit breaker, 7 is a cable connector, 8 is an upper unit cavity, 9 is a lower unit cavity, 10 is a front door cover, 11 is a rear door cover, 12 is a shell assembly, 13 is a wiring cavity, 14 is a combined camera, 15 is a Z-shaped static contact, 16 is a tubular busbar system, 17 is a wheel rail, 18 is a shell unit frame, 19 is a circuit breaker wheel guard, 20 is a circuit breaker positioning socket, 21 is a grounding seat, 22 is a heating dehumidifier seat, 23 is a static contact seat, 24 is Connecting screw hole, 25 is a hanging seat, 26 is a camera seat, 27 is a high-definition camera, 28 is an LED lamp, 29 is a network camera, 30 is a clamping block, 31 is a rotating shaft, 32 is a screw cover plate, 33 is a circuit breaker isolation rocker, 34 is a locking rocker, 35 is an isolation observation window, 36 is an energy storage rocker, 37 is a combined button, 38 is a display, 39 is an interlocking mechanism, 40 is an intensive circuit board, 41 is a comprehensive protection device, 42 is a joint, 43 is a tubular busbar, 44 is a shield positioning pin, 45 is a shield positioning hole, 46 is a circuit breaker swing arm;

[0047] 391 is a door lock coupling assembly, 392 is a gate plate, 393 is a flat square, 394 is a groove, 395 is an inner toggle plate, 396 is a rotating shaft, and 397 is an outer toggle plate;

[0048] 401 is the handcart, 402 is the copper contact, 403 is the cylinder, 404 is the interlock hook, 405 is the pin shaft, 406 is the limit screw, 407 is the bracket, and 408 is the tension spring. Specific implementation mode

[0049] As Figures 1 to 15 As shown in the figure, the utility model provides a mine explosion-proof high-voltage combined vacuum distribution device, which includes a row of interconnected cabinets. This row of cabinets forms an integral whole. Each cabinet is composed of an upper unit cavity 8 and a lower unit cavity 9 installed on a housing unit frame 19. The row of cabinets includes a control cabinet 1, multiple intermediate cabinets 2, and side cabinets 3. A plurality of cable connectors 7 are installed on the side of the control cabinet 1 for connecting to external devices; the intermediate cabinet 2 is a feeder cabinet, including a cabinet for installing a main breaker 5 and multiple cabinets for installing ordinary breakers 6; a high-voltage transformer 4 is installed in the upper unit cavity 8 of the side cabinet 3. As an incoming line cabinet, a cable connector 7 is installed on the outside of the upper unit cavity 8 of the side cabinet 3 for connecting to an external power supply. An ordinary breaker 6 is installed in the lower unit cavity 9 of the side cabinet 3. As a feeder cabinet, the outgoing lines of the incoming line cabinet are respectively connected to the incoming lines of each feeder cabinet through a tubular busbar system 16.

[0050] Moreover, the main breaker 5 and the ordinary breaker 6 adopted by the utility model are both integrated three-position breakers integrating a breaker and an earthing switch, which further ensures the integration of the equipment and simplifies the difficulty of equipment installation and wiring.

[0051] Among them, front door covers 10 and rear door covers 11 are installed in the upper unit cavity 8 and the lower unit cavity 9 of the intermediate cabinet 2 and the side cabinet 3. A display 38, a breaker isolation rocker 33, a locking rocker 34, an isolation observation window 35, an energy storage rocker 36, a combined button 37, and on-off buttons for the disconnector, on-off buttons for the breaker, and leakage test and reset buttons are arranged on the front door cover 10. An intensive circuit board 40, a comprehensive protection device 41, internal wiring terminals of the combined button 37 and the display 38, on-off buttons for the disconnector, on-off buttons for the breaker, and internal wiring terminals of the leakage test and reset buttons are installed inside the front door cover 10. The intensive circuit board 40 is respectively connected to the wiring terminals of the above-mentioned buttons, the comprehensive protection device 41, and the display.

[0052] A screw cover plate 322 is also installed on the front door cover 10, and the front door cover 10 and the screw cover plate 322 are connected via an interlocking mechanism 39, so that the connecting screw holes 24 on the front door cover 10 are blocked by the screw cover plate 322 when the circuit breaker is in the closed state, and the fastening screws on the front door cover 10 cannot be loosened; wherein the interlocking mechanism 39 includes a door lock coupling assembly 391 and a gate plate 392, and the gate plate 392 is installed on the inner surface of the front door cover 10, and the door lock coupling assembly 391 includes a rotating shaft 396, and two bearings are respectively connected to the two ends of the rotating shaft 396, and an outer toggle piece 397 and an inner toggle piece 395 are respectively connected to the two bearings, and a flat square 393 is also provided on the bearing connected to the outer toggle piece 397, wherein the outer toggle piece 397 is located on the outer surface of the front door cover 10, and the inner toggle piece 395 is located on the inner surface of the front door cover 10. Specifically, as Figure 11 As shown, the installation directions of the outer paddle plate 397 and the inner paddle plate 395 provided in this embodiment are perpendicular to each other.

[0053] A circuit breaker swing arm 46 is installed on the circuit breaker, and the circuit breaker can be closed and opened by the circuit breaker swing arm 46. The gate plate 392 is a rotatable plate. In the open state, the gate plate 392 is a vertically hanging plate due to gravity. In the closed state, the end of the circuit breaker swing arm 46 pushes up the gate plate 392, so that the gate plate 392 is turned from a vertical state to a horizontal state, which can cover the inner toggle piece 395 and prevent the rotating shaft 396 from rotating. Figure 10 and 12 As shown in the figure, the position of the circuit breaker swing arm 46 in the open and closed states is shown, and the gate plate 392 in the figure is in a naturally drooping position in the open state. Specifically, when the circuit breaker is closed, the circuit breaker swing arm 46 rotates upward to drive the gate plate 392 to rotate to a horizontal position. At this time, the gate plate 392 is located on one side of the inner toggle piece 395, forming a limit to it, and restricting the rotating shaft 396 from rotating; when the circuit breaker is open, the circuit breaker swing arm 46 rotates downward. At this time, the gate plate 392 naturally rotates to a drooping vertical state under the action of gravity. At this time, the gate plate 392 no longer blocks the inner toggle piece 395, and will no longer limit the inner toggle piece 395. At this time, the rotating shaft 396 can rotate.

[0054] A circle of connecting screw holes 24 are arranged around the front door cover 10, and fastening screws are screwed into the connecting screw holes 24 to realize the fixed connection between the front door cover 10 and the shell unit frame 18. A plurality of shield positioning pins 44 are also arranged on the front door cover 10; the screw cover plate 32 is a square frame with the same length as the front door cover 10 and a width slightly longer than the width of the front door cover 10. A circle of through holes are arranged around the square frame, and shield positioning holes 45 corresponding to the positions of the shield positioning pins 44 are also arranged on the square frame. When in use, the bolts of the shield positioning pins 44 on the front door cover 10 are unscrewed, the shield positioning holes 45 of the screw cover plate 32 are aligned with the shield positioning pins 44, and then the bolts of the shield positioning pins 44 are tightened, so as to fix the screw cover plate 32 on the front door cover 10.

[0055] A hole for the rotating shaft 396 to pass through is also provided on the front door cover 10, and a groove 394 is opened on the screw cover plate 32. The opening position of the groove 394 corresponds to the hole on the front door cover 10. The rotating shaft 396 can pass through the groove 394 on the screw cover plate 32 and the hole on the front door cover 10, so that the outer paddle plate 397 remains on the outside of the front door cover 10, and the inner paddle plate 395 remains on the inside of the front door cover 10. The groove 394 can cooperate with the flat square 393 opened on the rotating shaft 396. When the groove 394 is perpendicular to the flat square 393, the screw cover plate 32 cannot move. When the groove 394 is parallel to the flat square 393, the screw cover plate 32 can move within the opening length of the groove 394. The shield positioning hole 45 is an oblong hole, the length of which is consistent with the opening length of the slot 394, which is the translation distance of the screw cover plate 32 relative to the front door cover 10; by setting the slot 394 and the shield positioning hole 45, when the circuit breaker is closed, the slot 394 is perpendicular to the flat square 393, at which time the screw cover plate 32 cannot be moved, and the screw cover plate 32 can cover the connecting screw hole 24 on the front door cover 10, and the fastening screws on the front door cover 10 cannot be screwed when the power is on; when the circuit breaker is opened, the slot 394 is parallel to the flat square 393, at which time the screw cover plate 32 can move, and after the movement, the through hole of the screw cover plate 32 can just correspond to the connecting screw hole 24 on the front door cover 10 one by one, and at this time the operator can loosen the fastening screws on the front door cover 10 to open the front door cover 10.

[0056] The interlocking mechanism 39 of the utility model has only the outer toggle piece 397 exposed in front of the door, and the screw cover plate 32 is controlled by the flat square 393 on the rotating shaft 396, and the rotating shaft 396 is controlled by the gate plate 392, and the gate plate 392 is controlled by the circuit breaker swing rod 46. The circuit breaker swing rod 46 has two states, open and closed, which can indirectly control the movement of the screw cover plate 32, thereby controlling whether the door fastening screws can be loosened with a wrench.

[0057] Each cabinet body includes a housing unit frame 18, and a lifting seat 25 is also installed on the top of each housing unit frame 18 for hoisting during transportation. The housing unit frame 18 is of an upper and lower structure, separated by a partition in the middle, forming an upper unit cavity 8 and a lower unit cavity 9. The internal structures of the upper unit cavity 8 and the lower unit cavity 9 of the cabinet body for installing the main breaker 5 and the general breaker 6 are the same. The following will describe its internal structure according to the attached Figure 3 and 4 For example, taking the upper unit cavity 8 as an example, the interior of the upper unit cavity 8 is divided into front and rear chambers. A partition is installed between the front and rear chambers, and a static contact seat 23 is installed on the partition for passing through the Z-shaped static contact 15 and realizing the position indication when the static contact of the circuit breaker is installed. Among them, the front chamber is the circuit breaker installation chamber, and the rear chamber is the wiring chamber 13. Wheel rails 17 are installed on both sides of the bottom plate of the front chamber. A circuit breaker positioning socket 20 is installed at the front end of one side of the wheel rails 17, and a circuit breaker wheel guard 19 is installed outside the wheel rails 17 on this side. A grounding seat 21 and a heating and dehumidifying device seat 22 are also installed on the bottom plate of the front chamber. The general breaker 6 is installed and fixed in the front chamber through the wheel rails 17. The Z-shaped static contact 15 of the general breaker 6 passes through the through hole of the static contact seat 23 opened on the partition between the front and rear chambers and then extends into the rear chamber. A tubular busbar system 16 is installed on the Z-shaped static contact 15, and the connection of the incoming and outgoing lines between two unit cavities is realized through the tubular busbar system 16. The accurate lapping of the moving and static contacts installed in a matching manner is realized through the wheel rails 17.

[0058] A combined camera 14 is installed on the top plate above the general breaker 6 in the front chamber to monitor the movement of the moving contact of the general breaker 6 through the combined camera 14. The combined camera 14 is fixed on the top plate through a camera seat 26. A connecting plate is fixed on the camera seat 14 through a rotating shaft 31. A pressing block 30 is installed between the rotating shaft 31 and the connecting plate. High-definition cameras 27 and network cameras 29 are respectively fixed at both ends of the connecting plate. An LED lamp 28 for lighting is installed on the connecting plate at the middle position between the high-definition camera 27 and the network camera 29.

[0059] The tubular busbar system 16 of the present utility model includes a joint 42 and a tubular busbar 43. The two ends of the tubular busbar 43 are respectively connected with a joint 42, and the joints are respectively connected with the corresponding circuit breaker static contacts. The connection between the incoming and outgoing busbars of multiple feeder cabinet bodies is realized through the tubular busbar system 16, and its circuit connection principle is as Figure 15 shown. Through the tubular busbar system 16, the connection of the incoming and outgoing busbars of the circuit breakers between each cabinet body is realized, improving the safety of the equipment and greatly reducing the failure rate of cables or busbars.

[0060] In this utility model, the busbar connection between multiple feeder units adopts a tubular busbar 43. The tubular busbar 43 adopts a prefabricated production method and an interference fit structure, with full shielding, full insulation, and full sealing connection, completely avoiding fatal defects such as insulation and flashover caused by high voltage exposure in a harsh environment. Moreover, the tubular busbar 43 has a large current-carrying capacity, good insulation performance, good heat dissipation performance, low temperature rise and low loss. The tubular busbar 43 also has characteristics such as dust prevention, water prevention, and condensation prevention when combined with a European-style plug.

[0061] The high-voltage primary connection busbar of this utility model entirely adopts the design concept of full insulation, full shielding, and full grounding, fundamentally eliminating the occurrence of phase-to-phase short-circuit faults and personal electric shock accidents of operation and maintenance personnel. It is suitable for harsh underground operating conditions, improving the continuity, safety, and reliability of the coal mine underground power supply system; at the same time, it can achieve maintenance-free for the high-voltage primary part, reducing underground operation and maintenance personnel and capital investment.

[0062] A mechanical interlock device is also provided between the front door cover 10 of the chamber for installing the high-voltage transformer and the high-voltage transformer 4 to ensure that the front door cover 10 cannot be opened when powered on. The mechanical interlock device is installed between the high-voltage transformer assembly and the front door cover 10, near the lower right corner of the cabinet body. The high-voltage transformer assembly includes a handcart 401 installed in the cabinet body. A high-voltage transformer 4 is installed on the handcart 401. The back of the handcart 401 is the copper contact 402 of the high-voltage transformer. A cylinder 403 is installed on one side of the handcart 401, and this cylinder 403 is used to contact the mechanical interlock device to complete the interlock between the transformer assembly and the front door cover 10.

[0063] The mechanical interlock device includes an interlock hook 404, a pin shaft 405, a limit screw 406, a bracket 407, and a tension spring 408. The bracket 407 is fixed on one side of the cylinder 403 on the side of the handcart 401 inside the cabinet body, and the bracket 407 is a "┛"-shaped bracket. The top of the bracket 407 is rotationally connected to the interlock hook 404 through the pin shaft 405. Round holes are opened on both the interlock hook 404 and the horizontal plate of the bracket 407, and the two round holes are respectively connected to both ends of the tension spring 408. A limit screw 406 is also installed on the vertical plate of the bracket 407 for limiting the tension spring 408. The limit screw 406 is specifically fixed below the interlock hook 404.

[0064] Among them, the interlock hook 404 is a horizontal plate. A downward hook-shaped connecting portion is provided at the front end of the horizontal plate. The hook-shaped connecting portion can cooperate with the door nose on the door. The middle section of the horizontal plate is a rectangular connecting portion, and the rectangular connecting portion is connected to the bracket 407 through 03. The rear section of the horizontal plate is a trapezoidal connecting portion. The convex surface of the trapezoidal connecting portion is located on the top surface. When the high-voltage mutual inductor assembly is powered off and withdrawn, the inclined surface at the end of the trapezoidal connecting portion can contact the cylinder 403. When the cylinder 403 contacts the convex surface of the trapezoidal connecting portion, the interlock hook 404 can be pressed down at this time, and the hook-shaped connecting portion at the front end of the interlock hook 404 can be lifted, so that the interlock hook 404 is separated from the door nose on the door. At this time, the door can be opened.

[0065] A through hole corresponding to the position of the driving screw nut on the handcart 401 is provided on the door. The handle can be connected to the driving screw nut through this through hole, so as to operate the handcart 401 outside the door.

[0066] A centralized display screen is installed on the cabinet door of the upper unit cavity 8 of the control cabinet 1 of the present utility model. An operation area corresponding to the opening and closing of the incoming line unit and multiple feeder units is installed on the cabinet door of the lower unit cavity 9. A face recognition module and an iris recognition module are also installed on the cabinet door of the upper unit cavity 8. A control module is installed in the control cabinet 1. The control module is used to realize the control of the entire high-voltage combined vacuum distribution device, and the control module is equipped with a MineHong operating system, which can realize the interconnection of all things of the equipment in the mine. The centralized display screen is a touch screen and can perform human-computer interaction; at the same time, through the face recognition device and the iris recognition device, the safe operation of the high-voltage combined vacuum distribution device can be realized, ensuring that personnel without operation authority cannot operate and open the device, guaranteeing the safety of the device operation, and also being able to realize the safety management of the equipment.

[0067] The mine-used high-voltage combined vacuum distribution device given in this embodiment and the drawings includes one incoming line unit and nine feeder units. The incoming lines of the nine feeder units are all connected to the outgoing line of the incoming line unit; a centralized display screen is integrated, connected to the iris recognition module, the face recognition module, and ten comprehensive protection devices. The control module receives the signals of the iris recognition module, the face recognition module, and the comprehensive protection device to complete information interaction. The comprehensive protection device receives the control commands sent by the centralized display screen; all ten units adopt the latest high-performance circuit breakers, integrating the circuit breaker and the three-position isolation device; and the centralized display screen, the iris recognition module, and the comprehensive protection device are connected to the switch through an Ethernet cable; the feeder unit is connected to the outgoing line of the incoming line unit through a fully insulated solid-sealed tubular busbar.

[0068] The utility model improves the original vacuum distribution device connected in series into a combined device with a current upper and lower two-layer building block structure, reducing the length of the equipment. Moreover, the cables are all connected inside the cavity, eliminating the need for external wiring, ensuring the safety of the cables and simplifying the wiring difficulty. At the same time, the utility model adopts an iris and face recognition device to perform authentication through iris and face recognition, realizing the multiple electronic tag functions for power outage maintenance. Whoever locks the device can unlock it, and multiple people can lock and unlock it. The equipment can only be powered on after all the locking personnel unlock it, truly achieving the purpose of safe maintenance and avoiding potential safety accidents caused by mis-powering.

[0069] Regarding the specific structure of the utility model, it should be noted that the connection relationships between the various component modules adopted by the utility model are definite and achievable. Except for the special descriptions in the embodiments, the specific connection relationships can bring corresponding technical effects and, on the premise of not relying on the execution of corresponding software programs, solve the technical problems proposed by the utility model. The models of the components, modules, and specific components, the connection methods between them, as well as the conventional usage methods and predictable technical effects brought by the above technical features, except for the specific descriptions, all belong to the publicly disclosed content in patents, journal papers, technical manuals, technical dictionaries, and textbooks that those skilled in the art can obtain before the filing date, or belong to the conventional technologies and common general knowledge in the art, and do not need to be elaborated. This makes the technical solution provided in this case clear, complete, and achievable, and can reproduce or obtain the corresponding physical product based on this technical means.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model and are not intended to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A flameproof high-voltage combined vacuum power distribution device for mining, characterized in that: It includes a row of interconnected cabinets, each cabinet is composed of a unit cavity installed on a shell unit frame, and a row of cabinets includes a control cabinet, multiple intermediate cabinets and side cabinets, wherein the side of the control cabinet is installed with multiple cable connectors for connecting with external equipment; the intermediate cabinet is a feeder cabinet, including a cabinet for installing a main circuit breaker and multiple cabinets for installing ordinary circuit breakers; a high-voltage mutual inductor is installed in the unit cavity of the side cabinet, which serves as an incoming cabinet, and a cable connector is installed outside the unit cavity of the side cabinet for connecting to an external power supply, and the outgoing line of the incoming cabinet is connected to the incoming line of each feeder cabinet through a tubular busbar system; The intermediate cabinet and the side cabinet are both equipped with comprehensive protection devices for monitoring and protecting the equipment inside the cabinet; A control module is installed in the control cabinet, and a centralized display screen and an authentication and recognition module are installed on the front of the control cabinet. The control module is embedded with a Mine Hong operating system, and the control module is connected to the display screen, the authentication and recognition module and the integrated protection device in each cabinet through cables.

2. A mine flameproof high-voltage combined vacuum power distribution device according to claim 1, characterized in that: The authentication and recognition module includes an iris recognition module and / or a face recognition module.

3. The explosion-proof high-voltage combined vacuum power distribution device for mining according to claim 1 is characterized in that: The unit cavity comprises an upper unit cavity and a lower unit cavity, wherein the upper unit cavity and the lower unit cavity of the middle cabinet and the side cabinet are both installed with a front door cover and a rear door cover, the front door cover is installed with a display, a circuit breaker isolation rocker, a locking rocker, an isolation observation window, an energy storage rocker, a combination button and an isolating switch opening and closing button, a circuit breaker opening and closing button, and a leakage test and reset button, an integrated circuit board, a comprehensive protection device, internal wiring terminals of the combination button and the internal wiring terminals of the display, the isolating switch opening and closing button, the circuit breaker opening and closing button, and the leakage test and reset button are installed in the front door cover, and the integrated circuit board is respectively connected to the wiring terminals of the above-mentioned buttons, the integrated protection device and the display.

4. A mine flameproof high-voltage combined vacuum power distribution device according to claim 3, characterized in that: The front door cover is also provided with a screw cover plate, which is connected to the screw cover plate via an interlocking mechanism, so that the connecting screw holes on the front door cover are blocked by the screw cover plate when the circuit breaker is in the closed state, and the fastening screws on the front door cover cannot be loosened.

5. A mine flameproof high-voltage combined vacuum power distribution device according to claim 4, characterized in that: The interlocking mechanism includes a door lock coupling assembly and a rotatable gate plate, wherein the gate plate is mounted on the inner surface of the front door cover, and the door lock coupling assembly includes a rotating shaft, and two bearings are respectively connected to the two ends of the rotating shaft, and an outer toggle piece and an inner toggle piece are respectively connected to the two bearings, and a flat square is also provided on the bearing connected to the outer toggle piece, wherein the outer toggle piece is located on the outer surface of the front door cover, and the inner toggle piece is located on the inner surface of the front door cover; The front door cover is provided with a circle of connecting screw holes around it, a plurality of shield positioning pins are also installed on the front door cover, a circle of through holes is provided around the screw cover plate, and shield positioning holes corresponding to the shield positioning pins are also provided on the screw cover plate; A circuit breaker swing arm is installed on the circuit breaker, and the end of the circuit breaker swing arm can lift the gate plate to flip it to a horizontal plane in the closed state; The screw cover plate is provided with a groove, which cooperates with the flat square. When the circuit breaker is in the closed state, the groove is perpendicular to the flat square, and the screw cover plate blocks the connecting screw holes on the front door cover. When the circuit breaker is in the open state, the groove is parallel to the flat square, and the screw cover plate can move a corresponding distance along the opening length of the groove, so that the through holes on the screw cover plate correspond one by one to the connecting screw holes on the front door cover.

6. The flameproof high-voltage combined vacuum power distribution device for mining according to claim 1 is characterized in that: A mechanical interlocking device is provided between the front door cover of the unit cavity where the high-voltage transformer is located and the high-voltage transformer assembly. The high-voltage transformer assembly comprises a trolley installed in the unit cavity, the high-voltage transformer is installed on the trolley, the back of the trolley is a copper contact of the high-voltage transformer, and a cylinder is installed on one side of the trolley; The mechanical interlocking device includes an interlocking hook, a pin shaft, a limit screw, a bracket and a tension spring, and the bracket is installed between the high-voltage transformer assembly and the front door cover; The top of the bracket is rotatably connected to the interlocking hook through a pin shaft, a tension spring is connected between the interlocking hook and the bracket, and a limiting screw for limiting the tension spring is also installed on the bracket; A door nose is arranged in the front door cover, and the door nose cooperates with the interlocking hook; When the high-voltage transformer assembly is in the working position, the door nose and the interlocking hook are hooked with each other, and the cylinder and the interlocking hook are in a separated state. When the high-voltage transformer assembly exits the power-off state, the cylinder presses down the interlocking hook, and the door nose and the interlocking hook are separated.

7. The flameproof high-voltage combined vacuum power distribution device for mining according to claim 1 is characterized in that: The upper unit cavity in the cabinet for installing the main circuit breaker and the ordinary circuit breaker has the same structure as the lower unit cavity. The interior of each unit cavity is divided into a front cavity and a rear cavity. A partition is installed between the front cavity and the rear cavity. A static contact seat is installed on the partition for passing the Z-shaped static contact of the circuit breaker. The front cavity is the circuit breaker installation cavity, and the rear cavity is the wiring cavity.

8. The flameproof high-voltage combined vacuum power distribution device for mining according to claim 7, characterized in that: Wheel rails are installed on both sides of the bottom plate of the front chamber, a circuit breaker positioning socket is installed at the front end of the wheel rail on one side, and a circuit breaker wheel guard is installed on the outer side of the wheel rail on this side. A grounding seat and a heating dehumidifier seat are also installed on the bottom plate of the front chamber. The main circuit breaker or ordinary circuit breaker is fixed in the front chamber through the wheel rail installation. The Z-shaped static contact passes through the through hole opened on the static contact seat and then extends into the rear chamber. A tubular busbar system is installed on the Z-shaped static contact, and the connection of the incoming and outgoing lines between the two unit cavities is realized through the tubular busbar system.

9. The flameproof high-voltage combined vacuum power distribution device for mining according to claim 7, characterized in that: A combination camera is installed on the top plate above the circuit breaker in the front chamber, and the combination camera is fixed on the top plate through a camera seat. A connecting plate is fixed on the camera seat through a rotating shaft, and a clamping block is installed between the rotating shaft and the connecting plate. A high-definition camera and a network camera are respectively fixed at both ends of the connecting plate, and an LED lamp for lighting is installed on the connecting plate in the middle of the high-definition camera and the network camera.

10. The explosion-proof high-voltage combined vacuum power distribution device for mining according to claim 1, characterized in that: The tubular busbar system comprises a joint and a tubular busbar, and the joints are respectively connected to corresponding static contacts of the circuit breaker.

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