Mining explosion-proof and intrinsically safe multi-combination high-voltage permanent magnetic mechanism vacuum power distribution device

Abstract

A mining explosion-proof and intrinsically safe multi-combination high-voltage permanent magnetic mechanism vacuum power distribution device comprises an outer shell, the inner portion of the outer shell is divided into a front cavity and a rear cavity through a vertical partition plate, the front cavity is divided into an upper main cavity and a lower main cavity through a parallel partition plate, and the upper main cavity and the lower main cavity are divided into a circuit breaker cavity, a PT cavity and a centralized control cavity; the rear cavity is divided into an upper wiring cavity, a bus through cavity and a lower wiring cavity through an upper partition plate and a lower partition plate; a circuit breaker handcart is installed in each circuit breaker cavity, a PT handcart is installed in the PT cavity, and a centralized control unit is installed in the centralized control cavity. A plurality of groups of outlet wire binding posts and inlet wire binding posts are mounted on the vertical partition plate; a phase bus is arranged in the bus through cavity; a PT unit binding post is fixedly installed on the vertical partition plate, and the PT handcart is connected with the centralized control unit through a secondary cable. According to the utility model, the defects in the prior art are overcome, and the reasonable design of the functions and the use safety of the whole combined power distribution device can be effectively ensured when the combined power distribution device is safely used in a mine.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine power distribution equipment, and specifically relates to a mine explosion-proof and intrinsically safe type multi-combination high-voltage permanent magnet mechanism vacuum power distribution device. BACKGROUND

[0002] At present, the development of mine explosion-proof and intrinsically safe type high-voltage permanent magnet mechanism vacuum power distribution devices (hereinafter referred to as "high explosion") has entered a mature and normalized stage, and various manufacturers on the market have launched high explosion equipment with certain characteristics, and some manufacturers have developed "combination high explosion" equipment according to new requirements and new scenes of mine high explosion equipment, that is, multiple high explosion equipment is integrated into one device, which eliminates the trouble of cable connection or connection cylinder connection of conventional single devices, and also reduces the equipment arrangement space required by the power distribution room and the weight of the power distribution system equipment.

[0003] However, the intelligent degree of such a device in the prior art is relatively low, and it is difficult to install in the mine, and the safety performance is poor during use, and it cannot meet the development needs of the mine intelligent power supply system at present. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a mine explosion-proof and intrinsically safe type multi-combination high-voltage permanent magnet mechanism vacuum power distribution device, which overcomes the deficiencies of the prior art and can effectively ensure the rationalization design and safety of the entire combination power distribution device during safe use in the mine.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme:

[0006] A mine explosion-proof and intrinsically safe type multi-combination high-voltage permanent magnet mechanism vacuum power distribution device, comprising an outer shell body, a vertical partition plate is fixedly installed in the middle of the outer shell body, the vertical partition plate divides the inner cavity of the outer shell body into a front cavity and a rear cavity, a parallel partition plate is horizontally installed in the middle of the front cavity, the parallel partition plate divides the front cavity into an upper main cavity and a lower main cavity, and the upper main cavity and the lower main cavity are each divided into a plurality of circuit breaker cavities, PT cavities and a centralized control cavity by a plurality of vertical main cavity plates; an upper partition plate and a lower partition plate are horizontally installed in the inner cavity of the rear cavity, the upper partition plate and the lower partition plate divide the inner cavity of the rear cavity into an upper wiring cavity, a busbar cavity and a lower wiring cavity, a plurality of independent wiring unit cavities are divided in the upper wiring cavity and the lower wiring cavity by a plurality of vertical main cavity plates respectively, and a rear door is arranged at the rear side of each wiring unit cavity, and a cable introduction device is arranged, and the wiring unit cavities and the circuit breaker cavities are one-to-one corresponding;

[0007] Each of the circuit breaker cavities is provided with a circuit breaker handcart, the PT cavity is provided with a PT handcart, and the centralized control cavity is provided with a centralized control unit; each of the circuit breaker cavities is provided as an incoming line unit, a feeder unit and a tie unit according to its function; a plurality of outgoing line terminals and incoming line terminals are respectively arranged above and below the vertical partition plate, one end of each of the outgoing line terminals and the incoming line terminals is respectively connected to each of the circuit breaker cavities and movably connected to the plug of each of the circuit breaker handcarts, the other end of each of the outgoing line terminals is respectively connected to the upper terminal cavity and the lower terminal cavity, and the other end of each of the incoming line terminals is respectively connected to the busbar cavity; the busbar cavity is provided with a phase busbar, each of the phase terminals in each of the incoming line terminals is respectively connected to each phase of the phase busbar through a connecting copper bar; the vertical partition plate is further provided with a PT unit terminal, one end of the PT unit terminal corresponds to the PT handcart, the other end of the PT unit terminal is connected to each phase of the phase busbar through a connecting copper bar, and the PT handcart is connected to the centralized control unit through a secondary cable.

[0008] Preferably, each of the circuit breaker cavities is provided with a circuit breaker cavity front door, the PT cavity is provided with a PT cavity front door, and the circuit breaker cavity front door and the PT cavity front door each include a door cover, the left side of the front surface of the door cover is provided with an upper lifting block and a lower lifting block, a disc is arranged between the upper lifting block and the lower lifting block, and the upper edge and the lower edge of the disc are tangent to the upper lifting block and the lower lifting block respectively; an axle slot is arranged around the outer edge of the disc, a handle is fixedly installed on the front surface of the disc, two rotating shaft supports are vertically installed on the left side of the front surface of the circuit breaker cavity, a rotating shaft is rotatably connected between the two rotating shaft supports, a supporting shaft is horizontally installed in the middle of the rotating shaft, and the supporting shaft is movably clamped in the axle slot.

[0009] A door support is installed on the left side of the front surface of the door cover, a door shaft is vertically and fixedly installed on the left side of the front surface of the circuit breaker cavity, the door support is movably sleeved on the outer surface of the door shaft, and the door shaft is coaxially arranged with the rotating shaft; limit blocks are fixedly installed on the left and right sides of the rear surface of the door cover, clamping grooves are arranged on the left and right sides of the front wall of the inner cavity of the circuit breaker cavity, and the clamping grooves are matched with the limit blocks.

[0010] Preferably, the inside wall of the circuit breaker cavity is provided with a circuit breaker tripping mechanism, the circuit breaker tripping mechanism comprises a pull rod, a shaft sleeve seat is sleeved in the middle of the pull rod, the shaft sleeve seat is fixedly installed on the inner cavity side wall of the circuit breaker cavity, one end of the pull rod penetrates through the front surface of the circuit breaker cavity and is fixedly installed with a handle plate, the other end of the pull rod is connected with one end of a connecting rod through a first pin, the other end of the connecting rod is connected with the upper end of a rotating connecting rod through a second pin, the lower end of the rotating connecting rod is provided with a bent pressing plate, a support is rotatably connected in the middle of the rotating connecting rod, and the support is fixedly installed on the inner cavity side wall of the circuit breaker cavity; the lower surface of the bent pressing plate is in movable contact with the circuit breaker tripping pressing plate on the side of the circuit breaker trolley.

[0011] The rotating connecting rod is connected with one end of a tension spring at a position between the support and the second pin, the other end of the tension spring is fixedly installed on the inner cavity side wall of the circuit breaker cavity through a tension spring support, and the position of the tension spring support is located on the side of the rotating connecting rod away from the pull rod.

[0012] Preferably, the outgoing line terminal post and the incoming line terminal post are fixedly installed with current transformers.

[0013] Preferably, explosion-proof mesh wire wall penetrating terminals are installed above and below the vertical partition plate, one end of each explosion-proof mesh wire wall penetrating terminal is connected with each circuit breaker cavity, and the other end of each explosion-proof mesh wire wall penetrating terminal is connected with each upper terminal cavity and each lower terminal cavity.

[0014] Preferably, display panels and operation buttons are respectively installed on the front doors of the circuit breaker cavities and the PT cavities, controllers are respectively installed in the circuit breaker cavities and the PT cavities, the signal output end of the operation button is connected with the signal input end of the controller, and the signal output end of the controller is connected with the signal input end of the circuit breaker trolley and the signal input end of the PT trolley, so as to independently control the opening and closing operations of the circuit breaker trolley and the PT trolley.

[0015] A centralized control door is installed on the front side of the centralized control cavity, a centralized control display screen and a centralized control button are fixedly installed on the surface of the centralized control door, the signal output end of the centralized control button is connected with the signal input end of the centralized control unit, and the signal input end of the centralized control display screen is connected with the signal output end of the centralized control unit.

[0016] Preferably, lifting lugs are fixedly installed on the upper surface of the outer shell, and foot supports are fixedly installed on the lower surface of the outer shell.

[0017] Preferably, track wheels are installed on the foot supports.

[0018] The utility model provides a kind of mining explosion-proof and intrinsically safe type multiple combination high-voltage permanent magnet mechanism vacuum distribution device.It has the following beneficial effects: by separating the inner cavity of shell body into front cavity and rear cavity, and separating the front cavity into multiple circuit breaker cavities distributed in upper and lower two layers and independent of each other, each circuit breaker handcart in the upper row of circuit breaker cavities adopts the way of busbar entering from bottom to top, and each circuit breaker handcart in the lower row of circuit breaker cavities adopts the way of busbar entering from top to bottom;Thus, the uniform layout of the front cavity can be effectively realized, so that the entire high-voltage permanent magnet mechanism vacuum distribution device can have a smaller size, and at the same time have the functions of similar equipment.The circuit breaker cavities are arranged as incoming line units, feeder units and tie-in units according to their functions, to effectively ensure the rationalization design and safety in use of the entire combined distribution device in the mine.And the rear cavity is separated into upper wiring cavities, busbar through cavities and lower wiring cavities by upper and lower partition plates, wherein the upper wiring cavities and the lower wiring cavities are separated into multiple independent wiring unit cavities by multiple vertical main cavity plates, and the rear side of each wiring unit cavity is provided with a rear door, so that the upper wiring cavities and the lower wiring cavities are separated from the busbar through cavities, and each wiring unit cavity is also separated, so that the incoming and outgoing line connection operation of the circuit in one wiring unit cavity can be performed while other circuits are powered on, without affecting other circuits, to ensure safety. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the description of the prior art.

[0020] Figure 1 The structural schematic diagram of the utility model;

[0021] Figure 2 The sectional structure schematic diagram of the utility model;

[0022] Figure 3 The partial structure schematic diagram of the utility model;

[0023] Figure 4 The rear view of the utility model;

[0024] Figure 5 The structure schematic diagram of the circuit breaker cavity front door in the utility model;

[0025] Figure 6 The structure expansion schematic diagram of the circuit breaker cavity front door in the utility model;

[0026] Figure 7 The structure schematic diagram of the circuit breaker trip mechanism and the circuit breaker handcart in the utility model;

[0027] Figure 8The structure schematic diagram of the circuit breaker tripping mechanism in the utility model is shown in the figure.

[0028] Figure 9 The structure schematic diagram of the circuit breaker tripping mechanism in the utility model is shown in the figure.

[0029] Figure 10 The structure schematic diagram of the foot stand in the utility model is shown in the figure.

[0030] Label explanation in the figure:

[0031] 1, outer shell; 2, vertical partition; 3, parallel partition; 4, upper main cavity; 5, lower main cavity; 6, vertical main cavity plate; 7, upper partition; 8, lower partition; 9, upper wiring cavity; 10, busbar through cavity; 11, lower wiring cavity; 12, circuit breaker trolley; 14, PT trolley; 15, outgoing line terminal post; 16, incoming line terminal post; 17, phase busbar; 20, circuit breaker cavity front door; 21, PT cavity front door; 22, current transformer; 23, explosion-proof net line wall terminal; 24, lifting lug; 25, foot stand; 26, track wheel; 27, display panel; 28, operation button; 29, centralized control door; 33, centralized control display screen; 31, centralized control button; 32, cable lead-in device; 201, door cover; 202, upper lifting block; 203, lower lifting block; 204, disc; 205, shaft slot; 206, handle; 207, rotating shaft support; 208, rotating shaft; 209, support shaft; 210, door support; 211, door shaft; 212, limit clamping block; 213, clamping groove; 30, circuit breaker tripping mechanism; 301, pull rod; 302, shaft sleeve support; 304, handle plate; 305, first pin; 306, connecting rod; 307, second pin; 308, rotating connecting rod; 309, bent pressing plate; 310, support column; 311, circuit breaker tripping pressing plate; 312, tension spring; 313, tension spring support column. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be clearly and completely described below in combination with the drawings in the utility model.

[0033] Example one, as Figures 1 to 9As shown, a mine explosion-proof and intrinsically safe type of multiple combination high-voltage permanent magnet mechanism vacuum power distribution device, including the shell body 1, the shell body 1 middle fixedly installed with vertical partition 2, vertical partition 2 will be the inner cavity of shell body 1 is divided into front cavity and rear cavity, front cavity middle horizontal installation has parallel partition 3, parallel partition 3 will be the front cavity is divided into upper main cavity 4 and lower main cavity 5, upper main cavity 4 and lower main cavity 5 all are respectively through multiple vertical main cavity plate 6 is divided into multiple circuit breaker cavity, PT cavity and a centralized control cavity;The inner cavity of rear cavity is respectively horizontally installed with upper partition 7 and lower partition 8, upper partition 7 and lower partition 8 will be the inner cavity of rear cavity is divided into upper wiring cavity 9, busbar cavity 10 and lower wiring cavity 11, upper wiring cavity 9 and lower wiring cavity 11 all are respectively through multiple vertical main cavity plate 6 is divided into multiple independent wiring unit cavity, and each wiring unit cavity rear side is equipped with rear door, is provided with cable lead-in device 32, wiring unit cavity and circuit breaker cavity one-to-one arrangement;Each wiring unit cavity and busbar cavity 10 rear side is provided with rear door;So that upper wiring cavity 9 and lower wiring cavity 11 and busbar cavity 10 are separated at the same time, also make each wiring unit cavity is separately separated, therefore can be in other loop power supply work at the same time, to the loop in and out line wiring operation in one of wiring unit cavities, and other loop does not affect each other;

[0034] Each circuit breaker cavity is installed with circuit breaker handcart 12, PT cavity is installed with PT handcart 14, centralized control cavity is installed with centralized control unit;Each circuit breaker cavity is set as incoming line unit, feeder unit and contact unit according to its function distribution, wherein, incoming line unit is responsible for connecting main power supply to phase bus and providing overcurrent, overvoltage protection etc.;Feeder unit is responsible for distributing main power supply to each subordinate power supply branch;Contact unit is responsible for connecting or disconnecting two phase buses;The upper and lower of vertical partition 2 are respectively installed with multiple sets of outgoing line terminal post 15 and incoming line terminal post 16, one end of each set of outgoing line terminal post 15 and incoming line terminal post 16 is respectively connected with each circuit breaker cavity and movably connected with the plug of each circuit breaker handcart 12, the other end of each set of outgoing line terminal post 15 is respectively connected with upper wiring cavity 9 and lower wiring cavity 11, the other end of each set of incoming line terminal post 16 is respectively connected with busbar cavity 10;Busbar cavity 10 is provided with phase bus 17, each phase terminal post in each set of incoming line terminal post 16 is respectively connected with each phase of phase bus 17 through connecting copper bar;PT unit terminal post is further fixedly installed on vertical partition 2, one end of PT unit terminal post corresponds to PT handcart 14, the other end of PT unit terminal post is connected with each phase of phase bus 17 through connecting copper bar, PT handcart 14 is connected with centralized control unit through secondary cable. Wherein, the bottom of each circuit breaker cavity is installed with guide rail, circuit breaker handcart 12 is movably connected with guide rail, so that the plug on the circuit breaker handcart 12 is accurately overlapped with outgoing line terminal post 15 and incoming line terminal post 16 through guide rail.

[0035] Working principle:

[0036] In the specific installation, the devices in the device are connected according to the industry standard when the line connection is performed, and the specific operation is connected and wired by the professional installer according to the conventional operation. In addition, each circuit breaker trolley 12 is provided with a test position and a working position in the corresponding circuit breaker cavity, and each position has a positioning device respectively to ensure reliable interlocking. When the circuit breaker trolley 12 is in the test or working position, the circuit breaker trolley 12 can only be operated to close and open, and after the circuit breaker trolley 12 is closed, the circuit breaker trolley 12 cannot be moved to prevent misoperation of the circuit breaker trolley 12 under load. Among them, the incoming line unit is responsible for connecting the main power supply to the bus and providing overcurrent, overvoltage and other protections; the feeder unit is responsible for distributing the main power supply to each subordinate power supply branch; the tie unit is responsible for connecting or disconnecting two bus sections; by installing the circuit breaker trolley 12 in the incoming line unit, the feeder unit and the tie unit, the function of cutting off or closing the working current or fault current in the high-voltage circuit is realized.

[0037] In the embodiment, the inner cavity of the outer shell 1 is divided into a front cavity and a rear cavity, and the front cavity is divided into a plurality of circuit breaker cavities which are distributed in two layers and are independent of each other. Each circuit breaker trolley 12 in the upper row of circuit breaker cavities adopts the mode of incoming from the bus below and outgoing from the bus above, and each circuit breaker trolley 12 in the lower row of circuit breaker cavities adopts the mode of incoming from the bus above and outgoing from the bus below; thereby effectively realizing the uniform layout of the front cavity, so that the entire high-voltage permanent magnet mechanism vacuum power distribution device can have a smaller outer size, and at the same time have the functions of similar devices. And by setting each circuit breaker cavity as an incoming line unit, a feeder unit and a tie unit according to its function distribution, the rationalization design of the functions of the entire combined power distribution device and the safety of use are effectively ensured when used safely in the mine. The rear cavity is divided into an upper wiring cavity 9, a bus passage cavity 10 and a lower wiring cavity 11 by the upper partition plate 7 and the lower partition plate 8, wherein the upper wiring cavity 9 and the lower wiring cavity 11 are divided into a plurality of independent wiring unit cavities by a plurality of vertical main cavity plates 6, and the rear side of each wiring unit cavity is provided with a rear door, so that the incoming and outgoing line connection operation of one loop does not affect the power supply operation of other loops, ensuring safety.

[0038] In the embodiment, the required secondary control elements are placed in the centralized control cavity, including temperature collectors, power supply modules, PLCs, trolley controllers, relays, switches, and comprehensive protections. A centralized control door is installed on the front side of the centralized control cavity, and a centralized control display screen and a centralized control button are fixedly installed on the surface of the centralized control door. In addition, a camera and an LED illuminating lamp are also installed at the top of each circuit breaker cavity near the rear cavity to facilitate observation of the position of the movable contact of the circuit breaker.

[0039] The temperature collector communicates with the PLC through the RS485 communication line. The PLC reads the temperature value in the temperature collector and uploads it to the centralized control display screen. The switch is used to connect the camera, display screen, PLC and integrated protection in each circuit breaker cavity. The video signal and control signal are isolated through VLAN configuration to avoid mutual interference between signals and improve the overall performance of the network. The signal output end of the centralized control button is connected to the PLC to set and modify parameters through the centralized control button.

[0040] The rear of the PT cavity is separated by a partition into an independent explosion-proof space, and a voltage transformer and a power transformer are built-in for providing voltage signals for measurement and protection of the entire device, as well as a backup power supply. The unit is equipped with a harmonic elimination protector, which can effectively reduce the probability of power grid resonance, prevent damage to the insulation of the device, prevent PT overheating and explosion, cause serious accidents, and improve measurement accuracy.

[0041] In the second embodiment, as a further preferred embodiment of the first embodiment, each circuit breaker cavity is provided with a circuit breaker cavity front door 20, and the PT cavity is provided with a PT cavity front door 21. The circuit breaker cavity front door 20 and the PT cavity front door 21 each include a door cover 201. The left side of the front surface of the door cover 201 is provided with an upper lifting block 202 and a lower lifting block 203, respectively. A disc 204 is arranged between the upper lifting block 202 and the lower lifting block 203. The upper and lower edges of the disc 204 are tangent to the upper lifting block 202 and the lower lifting block 203, respectively. An axle slot 205 is formed around the outer edge of the disc 204. A handle 206 is fixedly installed on the front surface of the disc 204. Two rotary shaft supports 207 are vertically installed on the left side of the front surface of the circuit breaker cavity. A rotary shaft 208 is rotatably connected between the two rotary shaft supports 207. A support shaft 209 is horizontally installed in the middle of the rotary shaft 208 and movably clamped in the axle slot 205.

[0042] A door support 210 is installed on the left side of the front surface of the door cover 201. A door shaft 211 is vertically and fixedly installed on the left side of the front surface of the circuit breaker cavity. The door support 210 is movably sleeved on the outer surface of the door shaft 211. The door shaft 211 is coaxially arranged with the rotary shaft 208. Limiting clamping blocks 212 are fixedly installed on the left and right sides of the rear surface of the door cover 201. Clamping grooves 213 are arranged on the left and right sides of the front wall of the inner cavity of the circuit breaker cavity. The clamping grooves 213 cooperate with the limiting clamping blocks 212.

[0043] When the door opening action is performed, the disc 204 is first installed at a position between the upper lifting block 202 and the lower lifting block 203, and the shaft slot 205 around the outer edge of the disc 204 is clamped to the outer surface of the support shaft 209, and then the handle 206 is lifted upward, so that the entire handle 206 and the disc 204 are rotated upward around the support shaft 209 to a horizontal position, at this time, the disc 204 and the lower surface of the upper lifting block 202 are tangent, so that the disc 204 is driven to rotate upward around the support shaft 209 by the handle 206 to push the upper lifting block 202 to move upward; in turn, the entire door cover 201 is moved upward; in this process, the door support 210 on the door cover 201 also moves upward along the axial direction of the door shaft 211.

[0044] When the handle 206 is counterclockwise rotated to the horizontal position, the door cover 201 moves upward by about 20mm, at this time, the limiting block 212 can be disengaged from the clamping groove 213, at this time, the door opening action can be performed, when the door opening action is performed, the entire door cover 201 is rotated around the door shaft 211 as the axis, in addition, in the embodiment, the support shaft 209 is installed on the rotating shaft 208, and the rotating shaft can rotate coaxially with the door shaft 211 between the two rotating shaft supports 207. Therefore, the disc 204 and the handle 206 can rotate with the door cover 201, so that the entire disc 204 and the handle 206 can ensure that the door cover 201 will not suddenly fall when rotating simultaneously with the door cover 201, and can also be quickly connected with the support shaft 209 between the disc 204 outer edge and the rotating shaft 208 when the door is closed subsequently.

[0045] Similarly, when the door closing action is performed, the handle 206 is first rotated to the horizontal position, so that the clamping protrusion of the limiting block 212 corresponds to the strip-shaped slot of the clamping groove 213, so that the limiting block 212 can be rotated into the clamping groove 213; then the door cover 201 is rotated around the door shaft 211 as the axis to the door closing state, and then the handle 206 is clockwise rotated to the initial position, at this time, the entire door cover 201 also slides downward, so that the limiting block 212 and the clamping groove 213 are clamped to realize the closing and locking effect of the door cover 201.

[0046] In the embodiment, the travel switch can be installed at the position of the flange near the corresponding circuit breaker cavity front door 20, when the circuit breaker cavity front door 20 is opened, the travel switch is disconnected, the power supply of the unit is cut off, and the personal safety is protected.

[0047] In the third embodiment, as a further preferred solution of the first embodiment, the inside wall of the circuit breaker cavity is provided with a circuit breaker tripping mechanism 30, which comprises a pull rod 301, a shaft sleeve seat 302 is sleeved in the middle of the pull rod 301, the shaft sleeve seat 302 is fixedly installed on the inner wall of the circuit breaker cavity, one end of the pull rod 301 penetrates through the front surface of the circuit breaker cavity and is fixedly installed with a handle plate 304, the other end of the pull rod 301 is connected with one end of a connecting rod 306 through a first pin 305, the other end of the connecting rod 306 is connected with the upper end of a rotating connecting rod 308 through a second pin 307, the lower end of the rotating connecting rod 308 is provided with a bent pressing plate 309, a support 310 is rotatably connected in the middle of the rotating connecting rod 308, and the support 310 is fixedly installed on the inner wall of the circuit breaker cavity; the bent pressing plate 309 is in movable contact with a circuit breaker tripping pressing plate 311 on the side of the circuit breaker trolley 12.

[0048] The rotating connecting rod 308 is connected with one end of a pull spring 312 at a position between the support 310 and the second pin 307, the other end of the pull spring 312 is fixedly installed on the inner wall of the circuit breaker cavity through a pull spring support 313, and the pull spring support 313 is located on the side of the rotating connecting rod 308 away from the pull rod 301.

[0049] When the circuit breaker trolley 12 in the circuit breaker cavity is in a closed state, the circuit breaker tripping pressing plate 311 is in a horizontal position at this time. When it is necessary to perform tripping operation on the circuit breaker trolley 12, the handle plate 304 is pulled to drive the pull rod 301 to move along the axial direction outside the outer shell 1, thereby driving one end of the connecting rod 306 at the end of the pull rod 301 to move outward; the other end of the connecting rod 306 can then drive the upper end of the rotating connecting rod 308 to move outward; since the rotating connecting rod 308 is rotatably connected with the inner wall of the circuit breaker cavity through the support 310, the rotating connecting rod 308 can be rotated with the support 310 as the center by the principle of leverage; the bent pressing plate 309 at the lower end of the rotating connecting rod 308 can then be driven to rotate downward to press the circuit breaker tripping pressing plate 311, so that the circuit breaker tripping pressing plate 311 is tripped after a certain pressure is reached, thereby achieving the operation of tripping and opening the circuit breaker trolley 12. When the circuit breaker trolley 12 is tripped, the pull rod 301 drives the connecting rod 306 and the upper end of the rotating connecting rod 308 to move outward, at which time the pull spring 312 is stretched. After the tripping operation on the circuit breaker trolley 12 is completed, the handle plate 304 can be directly released, at which time the elastic pulling force of the pull spring 312 can be used to drive the rotating connecting rod 308 to quickly return to the initial position, thereby effectively preventing the problem of being unable to close due to forgetting to reset.

[0050] In the fourth embodiment, as a further preferred solution of the first embodiment, the outgoing terminal 15 and the incoming terminal 16 are fixedly installed with current transformers 22. The current transformers 22 are used to inductively measure the current signals of the outgoing terminal 15 and the incoming terminal 16, and transmit the signals to the control unit, so that the current can be measured, the load condition of the power system can be monitored in real time, potential overload or short circuit problems can be found in time, and the safety of the power system can be ensured.

[0051] In the fifth embodiment, as a further preferred solution of the first embodiment, the vertical partition 2 is installed with explosion-proof network wall terminals 23 above and below, one end of each explosion-proof network wall terminal 23 is in communication with each circuit breaker cavity, and the other end of each explosion-proof network wall terminal 23 is in communication with each upper terminal cavity 9 and each lower terminal cavity 11.

[0052] In the sixth embodiment, as a further preferred solution of the first embodiment, the front door of the circuit breaker cavity and the front door of the PT cavity are each installed with a display panel and an operation button, the circuit breaker cavity and the PT cavity are each installed with a controller, the signal output end of the operation button is connected to the controller, and the signal output end of the controller is connected to the signal input end of the circuit breaker handle and the signal input end of the PT handle, respectively, to independently control the opening and closing operations of the circuit breaker handle and the PT handle, thereby greatly improving the operation efficiency of the combined explosion-proof device, facilitating the maintenance personnel, saving valuable time for the customers, and increasing the production efficiency.

[0053] In the seventh embodiment, as a further preferred solution of the first embodiment, the upper surface of the outer shell 1 is fixedly installed with lifting lugs 24, and the lower surface of the outer shell 1 is fixedly installed with a skid 25. The lifting lugs 24 are used to facilitate the lifting and moving of the entire device. The skid 25 can be used as a normal skid. In this embodiment, the skid 25 can also be installed with track wheels 26 to facilitate movement on the underground track in the mine.

[0054] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A mine explosion-proof and intrinsically safe multi-combination high-voltage permanent magnet mechanism vacuum power distribution device, characterized in that: The utility model relates to a kind of integrated switchgear, including outer shell (1), vertical partition (2) is fixedly installed in the outer shell (1) middle, the vertical partition (2) separates the inner cavity of outer shell (1) into front cavity and rear cavity, parallel partition (3) is horizontally installed in the front cavity middle, the parallel partition (3) separates the front cavity into upper main cavity (4) and lower main cavity (5), and multiple vertical main cavity plates (6) are separated into multiple circuit breaker cavities, PT cavity and a centralized control cavity in the upper main cavity (4) and lower main cavity (5);The inner cavity of the rear cavity is horizontally installed with upper partition (7) and lower partition (8) respectively, and the inner cavity of the rear cavity is separated into upper wiring cavity (9), busbar cavity (10) and lower wiring cavity (11) by the upper partition (7) and the lower partition (8), and multiple vertical main cavity plates (6) are separated into multiple independent wiring unit cavities in the upper wiring cavity (9) and the lower wiring cavity (11) respectively, and rear door is equipped with in each wiring unit cavity, and cable lead-in device (32) is configured, and each wiring unit cavity is set one by one with circuit breaker cavity; Each of the circuit breaker cavities is installed with circuit breaker handcart (12), the PT cavity is installed with PT handcart (14), and centralized control unit is installed in the centralized control cavity;Each circuit breaker cavity is set as incoming line unit, feeder unit and contact unit according to its function distribution;Multiple groups of outgoing line terminal posts (15) and incoming line terminal posts (16) are respectively installed above and below the vertical partition (2), one end of each group of outgoing line terminal posts (15) and incoming line terminal posts (16) is respectively connected with each circuit breaker cavity and movably connected with the plug of each circuit breaker handcart (12), the other end of each group of outgoing line terminal posts (15) is respectively connected with the upper wiring cavity (9) and the lower wiring cavity (11), and the other end of each group of incoming line terminal posts (16) is connected with the busbar cavity (10) respectively;Busbar (17) is arranged in the busbar cavity (10), and each phase terminal post in each group of incoming line terminal posts (16) is connected with each phase of busbar (17) respectively;PT unit terminal post is further fixedly installed on the vertical partition (2), one end of the PT unit terminal post corresponds with the PT handcart (14), the other end of the PT unit terminal post is connected with each phase of busbar (17) through connecting copper bar, and the PT handcart (14) is connected with centralized control unit through secondary cable.

2. The mine explosion-proof and intrinsically safe multi-combination high-voltage permanent magnet mechanism vacuum power distribution device according to claim 1, characterized in that: Each of the front sides of the circuit breaker cavities is provided with a circuit breaker cavity front door (20), and the front side of the PT cavity is provided with a PT cavity front door (21). The circuit breaker cavity front door (20) and the PT cavity front door (21) each comprise a door cover (201). The left side of the front surface of the door cover (201) is provided with an upper lifting block (202) and a lower lifting block (203), respectively. A disc (204) is arranged between the upper lifting block (202) and the lower lifting block (203). The upper edge and the lower edge of the disc (204) are tangent to the upper lifting block (202) and the lower lifting block (203), respectively. An axle slot (205) is formed in the outer edge of the disc (204). A handle (206) is fixedly installed on the front surface of the disc (204). Two rotating shaft supports (207) are vertically installed on the left side of the front surface of the circuit breaker cavity. A rotating shaft (208) is rotatably connected between the two rotating shaft supports (207). A supporting shaft (209) is horizontally installed in the middle of the rotating shaft (208). The supporting shaft (209) is movably clamped in the axle slot (205). A door support (210) is installed on the left side of the front surface of the door cover (201). A door shaft (211) is vertically and fixedly installed on the left side of the front surface of the circuit breaker cavity. The door support (210) is movably sleeved on the outer surface of the door shaft (211). The door shaft (211) is coaxially arranged with the rotating shaft (208). Limiting clamping blocks (212) are fixedly installed on the left and right sides of the rear surface of the door cover (201). Clamping grooves (213) are arranged on the left and right sides of the front wall of the inner cavity of the circuit breaker cavity. The clamping grooves (213) are matched with the limiting clamping blocks (212).

3. The mine explosion-proof and intrinsically safe multi-combination high-voltage permanent magnet mechanism vacuum power distribution device according to claim 2, characterized in that: A circuit breaker tripping mechanism (30) is arranged on the inner side wall of the circuit breaker cavity. The circuit breaker tripping mechanism comprises a pull rod (301). An axle sleeve seat (302) is sleeved in the middle of the pull rod (301). The axle sleeve seat (302) is fixedly installed on the inner side wall of the inner cavity of the circuit breaker cavity. One end of the pull rod (301) penetrates through the front surface of the circuit breaker cavity and is fixedly installed with a handle plate (304). The other end of the pull rod (301) is connected with one end of a connecting rod (306) through a first pin (305). The other end of the connecting rod (306) is connected with the upper end of a rotating connecting rod (308) through a second pin (307). A bent pressing plate (309) is arranged on the lower end of the rotating connecting rod (308). A support column (310) is rotatably connected in the middle of the rotating connecting rod (308). The support column (310) is fixedly installed on the inner side wall of the inner cavity of the circuit breaker cavity. The lower surface of the bent pressing plate (309) is movably contacted with a circuit breaker tripping pressing plate (311) on the side of a circuit breaker trolley (12). One end of the pull spring (312) is connected to the position of the rotating connecting rod (308) between the support column (310) and the second pin (307). The other end of the pull spring (312) is fixedly installed on the inner side wall of the inner cavity of the circuit breaker cavity through a pull spring support column (313). The position of the pull spring support column (313) is on the side of the rotating connecting rod (308) away from the pull rod (301).

4. The mine explosion-proof and intrinsically safe multi-combination high-voltage permanent magnet mechanism vacuum power distribution device according to claim 1, characterized in that: The outgoing terminal post (15) and the incoming terminal post (16) are fixedly installed with current transformers (22).

5. The mine explosion-proof and intrinsically safe multi-combination high-voltage permanent magnet mechanism vacuum power distribution device according to claim 1, characterized in that: The vertical partition (2) is installed with explosion-proof network wall terminals (23) above and below, one end of each explosion-proof network wall terminal (23) is communicated with each circuit breaker cavity, and the other end of each explosion-proof network wall terminal (23) is communicated with each upper wiring cavity (9) and each lower wiring cavity (11).

6. The mine explosion-proof and intrinsically safe multi-combination high-voltage permanent magnet mechanism vacuum power distribution device according to claim 2, characterized in that: The circuit breaker cavity front door (20) and the PT cavity front door (21) are each installed with display panels (27) and operation buttons (28), the circuit breaker cavity and the PT cavity are each installed with controllers, the signal output end of the operation button (28) is connected with the controller, the signal output end of the controller is connected with the signal input end of the circuit breaker handcart (12) and the signal input end of the PT handcart (14) respectively, and the circuit breaker handcart (12) and the PT handcart (14) are independently controlled. The centralized control cavity front side is installed with a centralized control door (29), the surface of the centralized control door (29) is fixedly installed with a centralized control display screen (33) and a centralized control button (31), the signal output end of the centralized control button (31) is connected with the signal input end of the centralized control unit, and the signal input end of the centralized control display screen (33) is connected with the signal output end of the centralized control unit.

7. The mine explosion-proof and intrinsically safe multi-combination high-voltage permanent magnet mechanism vacuum power distribution device according to claim 1, characterized in that: The outer shell (1) upper surface is fixedly installed with lifting lugs (24), and the outer shell (1) lower surface is fixedly installed with a foot stand (25).

8. The mine explosion-proof and intrinsically safe multi-combination high-voltage permanent magnet mechanism vacuum power distribution device according to claim 7, characterized in that: The foot stand (25) is installed with track wheels (26).

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