阅读说明：本技术 一种煤矿井下纵旋式高压隔离装置 (Coal mine underground longitudinal rotation type high-voltage isolation device ) 是由 于继辉 闫小关 蒋文权 于 2021-07-08 设计创作，主要内容包括：本发明提出一种煤矿井下纵旋式高压隔离装置,包括隔爆箱体,所述隔爆箱体上设置有隔爆密封门,隔爆箱体的内部分别设置有真空断路器、纵旋机构和控制箱,纵旋机构和控制箱均固定在支架上,真空断路器与纵旋机构相连接,且真空断路器的两端分别通过接触件连接有进线机构和出线机构；所述控制箱内分别设置有控制单元和执行单元,纵旋机构与执行单元相连接,真空断路器和执行单元均与控制单元相连接。本发明配有自动手动两种分离、关合隔离的操作模式,满足远程安全送电、远程停电后自动断开电源的高标准供电安全要求,整体结构紧凑,使用安全可靠。(The invention provides a coal mine underground longitudinal rotation type high-voltage isolation device, which comprises a flame-proof box body, wherein a flame-proof sealing door is arranged on the flame-proof box body, a vacuum circuit breaker, a longitudinal rotation mechanism and a control box are respectively arranged in the flame-proof box body, the longitudinal rotation mechanism and the control box are both fixed on a bracket, the vacuum circuit breaker is connected with the longitudinal rotation mechanism, and two ends of the vacuum circuit breaker are respectively connected with a wire inlet mechanism and a wire outlet mechanism through contact pieces; the control box is internally provided with a control unit and an execution unit respectively, the longitudinal rotation mechanism is connected with the execution unit, and the vacuum circuit breaker and the execution unit are both connected with the control unit. The invention is provided with two automatic and manual separation and closing isolation operation modes, meets the high-standard power supply safety requirements of remote safe power transmission and automatic power off after remote power failure, and has compact integral structure and safe and reliable use.)

1. A coal mine underground longitudinal rotation type high-voltage isolation device is characterized in that: the explosion-proof box comprises an explosion-proof box body (3), wherein an explosion-proof sealing door (1) is arranged on the explosion-proof box body (3), a vacuum circuit breaker (2), a longitudinal rotation mechanism and a control box (13) are respectively arranged in the explosion-proof box body (3), the longitudinal rotation mechanism and the control box (13) are both fixed on a support (19), the vacuum circuit breaker (2) is connected with the longitudinal rotation mechanism, and two ends of the vacuum circuit breaker (2) are respectively connected with a wire inlet mechanism and a wire outlet mechanism through contact pieces; the vacuum circuit breaker is characterized in that a control unit and an execution unit are respectively arranged in the control box (13), the longitudinal rotation mechanism is connected with the execution unit, and the vacuum circuit breaker (2) and the execution unit are both connected with the control unit.

2. The coal mine underground vertical rotation type high-pressure isolating device according to claim 1, which is characterized in that: indulge and revolve mechanism including indulging and revolve structure body (12) and swinging boom (18), indulge and revolve structure body (12) and fix on the top surface of swinging boom (18), the one end of swinging boom (18) is connected with the execution unit in control box (13), the other end rotates with support (19) to be connected, the bottom surface fixed connection vacuum circuit breaker (2) of swinging boom (18).

3. The coal mine underground vertical rotation type high-pressure isolating device according to claim 2, characterized in that: a fuse tube (22) is connected between the vacuum circuit breaker (2) and the longitudinal rotary structure body (12), and the fuse tube (22) is connected with the contact element.

4. The coal mine underground vertical rotation type high-voltage isolation device according to any one of claims 1 to 3, which is characterized in that: the contact element comprises a duckbilled moving contact I (20) and a duckbilled moving contact II (23), and the duckbilled moving contact I (20) is arranged at the upper end of the vacuum circuit breaker (2) and is matched with the wire inlet mechanism; the duckbilled moving contact II (23) is arranged at the lower end of the vacuum circuit breaker (2) and is matched with the wire outlet mechanism; the safety tube (22) is connected with the duckbilled moving contact I (20).

5. The coal mine underground vertical rotation type high-pressure isolating device according to claim 4, characterized in that: the incoming line mechanism comprises an external incoming line assembly and an internal incoming line assembly, the external incoming line assembly comprises an incoming line box (6), a first wall penetrating insulation frame (15) and a first incoming line copper bar (5), the incoming line box (6) is arranged on one side of the explosion-proof box body (3), the first wall penetrating insulation frame (15) is arranged in the incoming line box (6), the first incoming line copper bar (5) is fixed on the first wall penetrating insulation frame (15), and the first incoming line copper bar (5) is connected with the internal incoming line assembly.

6. The coal mine underground vertical rotation type high-pressure isolating device according to claim 5, characterized in that: the inner wire inlet assembly comprises a wire inlet insulating frame (4), a wire inlet copper bar II (14) and a wire inlet stationary contact copper bar (16), wherein the wire inlet insulating frame (4) is arranged in the explosion-proof box body (3), the wire inlet copper bar II (14) is fixed on the wire inlet insulating frame (4), and the wire inlet stationary contact copper bar (16) is arranged at the lower part of the wire inlet insulating frame (4); the first incoming line copper bar (5) extends into the explosion-proof box body (3) along the first wall-penetrating insulating frame (15) and is connected with one end of a second incoming line copper bar (14), the other end of the second incoming line copper bar (14) is connected with a first incoming line stationary contact copper bar (16), and the first incoming line stationary contact copper bar (16) is matched with a first duckbilled movable contact (20).

7. The coal mine underground vertical rotation type high-pressure isolating device as claimed in claim 5 or 6, wherein: the wire outlet mechanism comprises an external wire outlet assembly and an internal wire outlet assembly, the external wire outlet assembly comprises a wire outlet box (8), a second wall-penetrating insulating frame (9) and a first wire outlet copper bar (7), the wire outlet box (8) is arranged on one side of the explosion-proof box body (3) and is located below the wire inlet box (6), the second wall-penetrating insulating frame (9) is arranged in the wire outlet box (8), the first wire outlet copper bar (7) is fixed on the second wall-penetrating insulating frame (9), and the first wire outlet copper bar (7) is connected with the internal wire outlet assembly.

8. The coal mine underground vertical rotation type high-pressure isolating device according to claim 7, characterized in that: the internal wire outlet assembly comprises a wire outlet insulating frame (17), a wire outlet copper bar II (24) and a wire outlet stationary contact copper bar (10), the wire outlet insulating frame (17) is arranged in the explosion-proof box body (3), the wire outlet copper bar II (24) is fixed on the wire outlet insulating frame (17), and the wire outlet stationary contact copper bar (10) is arranged at the lower part of the wire outlet insulating frame (17); the first outgoing line copper bar (7) extends into the explosion-proof box body (3) along the wall-penetrating insulating frame II (9) and is connected with one end of the second outgoing line copper bar (24), the other end of the second outgoing line copper bar (24) is connected with the second outgoing line stationary contact copper bar (10), and the second outgoing line stationary contact copper bar (10) is connected with the duckbilled moving contact II (23).

9. The underground coal mine longitudinal rotation type high-voltage isolation device according to any one of claims 1 to 3, 6 and 8, which is characterized in that: the control box (13) is also provided with a manual input shaft (21), and the manual input shaft (21) is connected with an execution unit in the control box (13).

Technical Field

The invention relates to the field of mining power distribution equipment, in particular to a longitudinal rotation type high-voltage isolation device in a coal mine.

Background

The mining explosion-proof and intrinsic safety type high-voltage vacuum power distribution device mainly has the functions of power transmission and power transmission, protection and the like for a coal mine underground high-voltage power transmission and distribution system. The existing products can only realize far and short range electric switching on and off, although a power distribution device aiming at remote electric isolation breaking also appears at present, the traditional chassis type vehicle entering and exiting mode is adopted, the whole circuit breaker is pulled to move by the isolated switching on and off, the load is heavy, and various faults such as jamming, deviation and the like are easily caused; the conductive rod arranged on the trolley and the contact arm fixed on the box body are not matched in place due to processing errors, so that the contact area is reduced, the contact resistance is increased, the heating is large when large current is passed, and the contact arm, the conductive rod and adjacent parts are easy to burn; meanwhile, the fixed contact adopts a traditional common high-voltage configured tulip contact which is of a binding structure, the pressure of the contact fingers is acted by the binding spring together, when one contact finger is overheated, the binding spring is heated and expanded, the contact resistance of other contact fingers is increased due to the reduction of the spring pressure, the heat productivity of the contact finger is increased sharply, and the vicious circle is formed, so that the decomposition and the failure of the whole contact are finally caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the vertical rotation type high-voltage isolating device for the underground coal mine, which is provided with two automatic and manual separating and closing isolating operation modes, meets the high-standard power supply safety requirements of automatically disconnecting a power supply after remote safe power transmission and remote power failure, and has the advantages of compact integral structure and safe and reliable use.

In order to solve the technical problems, the invention adopts the following technical scheme: a coal mine underground longitudinal rotation type high-voltage isolation device comprises a flame-proof box body, wherein a flame-proof sealing door is arranged on the flame-proof box body, a vacuum circuit breaker, a longitudinal rotation mechanism and a control box are respectively arranged inside the flame-proof box body, the longitudinal rotation mechanism and the control box are both fixed on a support, the vacuum circuit breaker is connected with the longitudinal rotation mechanism, and two ends of the vacuum circuit breaker are respectively connected with a wire inlet mechanism and a wire outlet mechanism through contact pieces; the control box is internally provided with a control unit and an execution unit respectively, the longitudinal rotation mechanism is connected with the execution unit, and the vacuum circuit breaker and the execution unit are both connected with the control unit.

Indulge and revolve the mechanism including indulging and revolve structure body and swinging boom, indulge and revolve the structure body and fix on the top surface of swinging boom, the one end of swinging boom is connected with the execution unit in the control box, the other end rotates with the support to be connected, the bottom surface fixed connection vacuum circuit breaker of swinging boom.

And a protective tube is connected between the vacuum circuit breaker and the longitudinal rotary structure body and is connected with the contact element.

The contact element comprises a duckbilled moving contact I and a duckbilled moving contact II, and the duckbilled moving contact I is arranged at the upper end of the vacuum circuit breaker and is matched with the wire inlet mechanism; the duckbilled moving contact II is arranged at the lower end of the vacuum circuit breaker and is matched with the wire outlet mechanism; the protective tube is connected with the duckbilled movable contact I.

The wire inlet mechanism comprises an external wire inlet assembly and an internal wire inlet assembly, the external wire inlet assembly comprises a wire inlet box, a first wall penetrating insulation frame and a first wire inlet copper bar, the wire inlet box is arranged on one side of the explosion-proof box body, the first wall penetrating insulation frame is arranged in the wire inlet box, the first wire inlet copper bar is fixed on the first wall penetrating insulation frame, and the first wire inlet copper bar is connected with the internal wire inlet assembly.

The inner wire inlet assembly comprises a wire inlet insulating frame, a wire inlet copper bar II and a wire inlet stationary contact copper bar, wherein the wire inlet insulating frame is arranged in the explosion-proof box body, the wire inlet copper bar II is fixed on the wire inlet insulating frame, and the wire inlet stationary contact copper bar is arranged at the lower part of the wire inlet insulating frame; and the first inlet wire copper bar extends into the explosion-proof box body along the first wall-penetrating insulating frame and is connected with one end of a second inlet wire copper bar, the other end of the second inlet wire copper bar is connected with a second inlet wire stationary contact copper bar, and the first inlet wire stationary contact copper bar is matched with the first duckbilled movable contact.

The wire outlet mechanism comprises an external wire outlet assembly and an internal wire outlet assembly, the external wire outlet assembly comprises a wire outlet box, a wall penetrating insulation frame II and a wire outlet copper bar I, the wire outlet box is arranged on one side of the explosion-proof box body and located below the wire inlet box, the wall penetrating insulation frame II is arranged in the wire outlet box, the wire outlet copper bar I is fixed on the wall penetrating insulation frame II, and the wire outlet copper bar I is connected with the internal wire outlet assembly.

The internal wire outlet assembly comprises a wire outlet insulating frame, a wire outlet copper bar II and a wire outlet stationary contact copper bar, the wire outlet insulating frame is arranged in the explosion-proof box body, the wire outlet copper bar II is fixed on the wire outlet insulating frame, and the wire outlet stationary contact copper bar is arranged at the lower part of the wire outlet insulating frame; the first outgoing line copper bar extends into the explosion-proof box body along the second wall-penetrating insulating frame and is connected with one end of the second outgoing line copper bar, the other end of the second outgoing line copper bar is connected with the second outgoing line stationary contact copper bar, and the second outgoing line stationary contact copper bar is connected with the duckbilled moving contact two phase.

And the control box is also provided with a manual input shaft, and the manual input shaft is connected with an execution unit in the control box.

The invention has the characteristics of compact structure, safety and reliability, the control unit or the manual input shaft drives the execution unit to control the rotation of the longitudinal rotation mechanism, and further control the on-off of the vacuum circuit breaker and the wire inlet mechanism and the wire outlet mechanism respectively, the operation mode of automatic and manual separation and closing isolation is realized simultaneously, the mining electric power maintenance is more convenient and safe, the high-standard power supply safety requirements of remote safe power transmission and automatic power supply disconnection after remote power failure are met, a solid bottom equipment foundation is laid for the intelligent mine construction provided by the national safety supervision bureau, the people reduction, the lack of people and even the unmanned target under the coal mine, and the blank of the equipment field is filled.

Drawings

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

FIG. 1 is a schematic diagram of the operation of the present invention;

FIG. 2 is a schematic structural diagram of the present invention in an open state;

FIG. 3 is a top view of the structure of the present invention in the open state;

FIG. 4 is a schematic structural diagram of the present invention in a closing state;

FIG. 5 is a top view of the structure of the present invention in a closing state;

FIG. 6 is a front view of the present invention showing the longitudinal rotation mechanism broken away;

FIG. 7 is a side view of the structure of the longitudinal rotation mechanism of the present invention shown in broken away;

FIG. 8 is a top view of the present invention showing the longitudinal rotation mechanism broken away;

FIG. 9 is a front view of the closing mechanism of the present invention;

fig. 10 is a side view of the closing mechanism of the longitudinal rotating mechanism of the present invention.

In the figure: the explosion-proof sealing door comprises an explosion-proof sealing door 1, a vacuum circuit breaker 2, an explosion-proof box body 3, an incoming line insulating frame 4, an incoming line copper bar 5, an incoming line box 6, an outgoing line copper bar 7, an outgoing line box 8, a wall penetrating insulating frame II 9, an outgoing line stationary contact copper bar 10, an underframe 11, a longitudinal rotation structure body 12, a control box 13, an incoming line copper bar II 14, a wall penetrating insulating frame I15, an incoming line stationary contact copper bar 16, an outgoing line insulating frame 17, a rotating arm 18, a support 19, a duckbilled movable contact I20, a manual input shaft 21, a fuse 22, a duckbilled movable contact II 23 and an outgoing line copper bar II 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Embodiment 1, as shown in fig. 1, the invention provides a coal mine underground longitudinal rotation type high-voltage isolation device, which comprises an explosion-proof box body 3, wherein the explosion-proof box body 3 is fixed in an underground roadway through an underframe 11. As shown in fig. 2 and 4, the explosion-proof box body 3 is provided with an explosion-proof sealing door 1, the inside of the explosion-proof box body 3 is respectively provided with a bracket 19, a vacuum circuit breaker 2, a longitudinal rotation mechanism and a control box 13, the longitudinal rotation mechanism and the control box 13 are both fixed on the bracket 19, and the control box 13 is located on one side of the longitudinal rotation mechanism. During assembly, the longitudinal rotating mechanism is installed from the left side of the explosion-proof box body 3 and fixedly connected with the bottom plate on the support 19, and then the explosion-proof sealing door 1 is used for sealing. The vacuum circuit breaker 2 is connected with the longitudinal rotating mechanism; the control box 13 is internally provided with a control unit and an execution unit respectively, the longitudinal rotation mechanism is connected with the execution unit, and the vacuum circuit breaker 2 and the execution unit are both connected with the control unit. The execution unit is used for controlling the longitudinal rotation mechanism to rotate, so that the vacuum circuit breaker 2 is driven to rotate synchronously. Indulge and revolve mechanism including indulging and revolve structure body 12 and swinging boom 18, indulge and revolve structure body 12 and fix on the top surface of swinging boom 18, the one end of swinging boom 18 is connected with the execution unit in the control box 13, other end accessible bearing rotates with support 19 to be connected, the bottom surface fixed connection vacuum circuit breaker 2 of swinging boom 18, this structure realizes that the control unit controls execution unit work, execution unit drive swinging boom 18 rotates, swinging boom 18 drives vacuum circuit breaker 2 and rotates.

In this embodiment, the control unit may adopt an STM32F103VET6 model controller, which is a brain of the mining flameproof and intrinsically safe type vertical rotation mechanism high-voltage vacuum power distribution combined device, and detects and operates through voltage, current and temperature signal lines and controls and executes the coordination work of the rotating arm 18, the vacuum circuit breaker 2 and the like.

As shown in fig. 3 and 5, two ends of the vacuum circuit breaker 2 are respectively connected with a wire inlet mechanism and a wire outlet mechanism through contact pieces, the contact pieces include a duckbilled moving contact one 20 and a duckbilled moving contact two 23, and the duckbilled moving contact one 20 is arranged at the upper end of the vacuum circuit breaker 2 and is matched with the wire inlet mechanism; the duckbilled moving contact two 23 is arranged at the lower end of the vacuum circuit breaker 2 and is matched with the wire outlet mechanism. When the duckbilled moving contact I20 is communicated with the wire inlet mechanism and the duckbilled moving contact II 23 is communicated with the wire outlet mechanism, the vacuum circuit breaker 2 is switched on and electrified, and high-voltage power is supplied; when the duckbilled moving contact I20 is disconnected with the wire inlet mechanism and the duckbilled moving contact II 23 is disconnected with the wire outlet mechanism, the vacuum circuit breaker 2 is opened and powered off, and the high-voltage power is powered off.

Further, the inlet wire mechanism includes outside inlet wire subassembly and inside inlet wire subassembly, and outside inlet wire subassembly in this embodiment sets up in the outside of flame proof box 3, and inside inlet wire subassembly sets up in the inside of flame proof box 3. The external wire inlet assembly comprises a wire inlet box 6, a wall-penetrating insulation frame I15 and a wire inlet copper bar I5, the wire inlet box 6 is fixed outside the upper right side of the explosion-proof box body 3, the wall-penetrating insulation frame I15 is arranged in the wire inlet box 6, the wire inlet copper bar I5 is fixed on the wall-penetrating insulation frame I15, and the wire inlet copper bar I5 is connected with the internal wire inlet assembly. The inner wire inlet assembly comprises a wire inlet insulating frame 4, a wire inlet copper bar II 14 and a wire inlet stationary contact copper bar 16, the wire inlet insulating frame 4 is arranged in the explosion-proof box body 3, the wire inlet copper bar II 14 is fixed on the wire inlet insulating frame 4, and the wire inlet stationary contact copper bar 16 is arranged at the lower part of the wire inlet insulating frame 4; the first incoming line copper bar 5 extends into the explosion-proof box body 3 along the first wall-penetrating insulating frame 15 and is connected with one end of a second incoming line copper bar 14, the other end of the second incoming line copper bar 14 is connected with a first incoming line stationary contact copper bar 16, and the first incoming line stationary contact copper bar 16 is matched with a first duckbilled moving contact 20. An input cable is connected into the wire inlet box 6 and is connected with the first wire inlet copper bar 5, the first wire inlet copper bar 5 transmits an electric signal to the second wire inlet copper bar 14 through the first wall-penetrating insulating frame 15, the second wire inlet copper bar 14 is transmitted to the first wire inlet stationary contact copper bar 16, and when the first wire inlet stationary contact copper bar 16 is communicated with the first duckbilled movable contact 20, the vacuum circuit breaker 2 is switched on, and high-voltage electricity is supplied; when the incoming line fixed contact copper bar 16 is disconnected with the duckbilled movable contact I20, namely the vacuum circuit breaker 2 is opened, the high-voltage power is cut off.

The outlet mechanism comprises an external outlet assembly and an internal outlet assembly, the external outlet assembly is arranged on the outer side of the explosion-proof box body 3, and the internal outlet assembly is arranged inside the explosion-proof box body 3. The external outlet assembly comprises an outlet box 8, a wall-penetrating insulating frame II 9 and an outlet copper bar I7, the outlet box 8 is arranged on one side of the explosion-proof box body 3 and is located below the inlet box 6, the wall-penetrating insulating frame II 9 is arranged in the outlet box 8, the outlet copper bar I7 is fixed on the wall-penetrating insulating frame II 9, and the outlet copper bar I7 is connected with the internal outlet assembly. The internal outlet assembly comprises an outlet insulation frame 17, an outlet copper bar II 24 and an outlet stationary contact copper bar 10, the outlet insulation frame 17 is arranged in the explosion-proof box body 3, the outlet copper bar II 24 is fixed on the outlet insulation frame 17, and the outlet stationary contact copper bar 10 is arranged at the lower part of the outlet insulation frame 17; the first outgoing line copper bar 7 extends into the explosion-proof box body 3 along the second wall-penetrating insulating frame 9 and is connected with one end of a second outgoing line copper bar 24, the other end of the second outgoing line copper bar 24 is connected with a second outgoing line stationary contact copper bar 10, and the second outgoing line stationary contact copper bar 10 is matched with a second duckbilled moving contact 23. When the vacuum circuit breaker is switched on, the outgoing line stationary contact copper bar 10 is communicated with the duckbilled moving contact two 23, an electric signal input by an incoming line end of the vacuum circuit breaker is transmitted to the outgoing line stationary contact copper bar 10 through being transmitted to the duckbilled moving contact two 23, the outgoing line stationary contact copper bar 10 is transmitted to the outgoing line copper bar two 24, the outgoing line copper bar two 24 transmits the electric signal to the outgoing line copper bar one 7 through the wall-penetrating insulation frame two 9, and finally the electric signal is transmitted to next-stage accessory equipment through the outgoing line copper bar one 7; when the vacuum circuit breaker is opened, the outgoing line stationary contact copper bar 10 is disconnected with the duckbilled moving contact two 23, and the high-voltage power is cut off.

In this embodiment, as shown in fig. 9 and 10, when power is supplied at ordinary times, the rotating arm 18 drives the vacuum circuit breaker 2 to be in a vertical state, at this time, the duckbill-shaped moving contact one 20 at the upper end is connected with the incoming line stationary contact copper bar 16, the duckbill-shaped moving contact two 23 at the lower end is connected with the outgoing line stationary contact copper bar 10, and the vacuum circuit breaker 2 is in a connected state. As shown in fig. 6 to 8, when power needs to be cut off, the control unit firstly controls the duckbilled moving contacts at the two ends of the vacuum circuit breaker 2 to be disconnected, then the control execution unit rotates and drives the rotating arm 18 to rotate 90 degrees anticlockwise, so that the vacuum circuit breaker 2 is in a horizontal state, and at the moment, the duckbilled moving contacts at the two ends of the vacuum circuit breaker are disconnected with the corresponding inlet static contact copper bar 16 and the outlet static contact copper bar 10 respectively, so that high voltage is completely disconnected, the maintenance operation is convenient, and the safety is ensured.

Further, a safety tube 22 is connected between the vacuum circuit breaker 2 and the longitudinal rotary structure body 12, the safety tube 22 is connected with the duckbill-type moving contact one 20, and the safety tube 22 has the function of current-limiting protection moving contacts 20 and 23. The power transmission route in this embodiment is: the input cable → the first incoming line copper bar 5 → the second incoming line copper bar 14 → the first incoming line stationary contact copper bar 16 → the first duckbilled moving contact 20 → the protective tube 22 → the vacuum circuit breaker 2 → the second duckbilled moving contact 23 → the second outgoing line stationary contact copper bar 10 → the second outgoing line copper bar 24 → the first outgoing line copper bar 7 → the next-stage accessory equipment.

Embodiment 2, a colliery is high voltage isolating device of formula of indulging soon in pit, still be provided with manual input shaft 21 on the control box 13, the execution unit in manual input shaft 21 and the control box 13 is connected, vacuum circuit breaker's combined floodgate, the separating brake action also can be accomplished through manual input shaft 21 by the manual work, thereby realize that whole isolator has automatic two separation of manual simultaneously, the mode of operation of closing the isolation, the maintenance of the electrician is more convenient on the ore deposit, safety, satisfy remote safe power transmission, the high standard power supply safety requirement of automatic disconnection power supply after the remote power failure, and is easy to operate, and convenient to use.

The other structure is the same as embodiment 1.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.