CN114974993A - Outdoor spring operation box with isolation operation device and outdoor column switch - Google Patents

Abstract

The invention provides an outdoor spring operation box with an isolation operation device and an outdoor column switch, wherein the outdoor spring operation box with the isolation operation device comprises a box body, an operation mechanism, a circuit breaker transmission main shaft, an isolation rotating shaft, a brake separating spring and an oil buffer, wherein the operation mechanism, the circuit breaker transmission main shaft, the isolation rotating shaft, the brake separating spring and the oil buffer are arranged in the box body; an isolation output crank arm is arranged on the isolation rotating shaft; an input crank arm, a buffering impact crank arm and a brake-separating spring driving crank arm are arranged on the circuit breaker transmission main shaft; one end of the opening spring is connected with the box body, and the other end of the opening spring is connected with the opening spring driving crank arm; the oil buffer is arranged on the opposite side of the opening spring and corresponds to the buffering impact crank arm. The transmission mechanism has the characteristics of long mechanical life, short rotary transmission stroke, simple structure and high transmission efficiency.

Description

Outdoor spring operation box with isolation operation device and outdoor column switch

Technical Field

The invention relates to the field of high-voltage electrical distribution switchgear, in particular to an outdoor spring operating box with an isolation operating device and an outdoor column switch with the outdoor spring operating box with the isolation operating device.

Background

The outdoor pole-mounted switch is important switch equipment of an electric power distribution system, particularly, in the world of China, a large number of pole-mounted outdoor switch power distribution switches are needed for the electric power distribution network, and the reliability of the power distribution switches is very important. The traditional pole-mounted breaker adopts an operation box with a forward and backward push type pull rod structure and a transmission mode (such as a pole-mounted outdoor breaker transmission device with an improved structure disclosed in CN 201720900029.4); the disadvantages of such a control box with a pull rod structure are as follows: the requirement on the strength and the stability of the case is high, so that the switch is complex in structure and large in load; the mechanical characteristic of the switch has large dispersity, and particularly, the three-phase synchronism, the closing overtravel and other parameters have poor consistency during the closing and opening operation; the mechanical life of the switch is short, the operation box of the pull rod structure is abraded greatly when acting, and the mechanical life of the switch is shortened; the production efficiency of the switch is influenced, and the dispersibility of the operating box with the pull rod structure in the switch assembly process causes the need of adjusting the mechanical parameters of the switch for many times, so that the production efficiency of the switch is influenced.

Disclosure of Invention

Therefore, the invention provides an outdoor spring operation box with an isolation operation device and an outdoor pole switch with the outdoor spring operation box with the isolation operation device. The operation box is improved into a rotary driving mode by changing the driving mode of the forward and backward push-pull rod type closing and opening brake of the operation box, so that the defects of poor rigidity, low efficiency and the like of the driving mode of the forward and backward push-pull rod type closing and opening brake are effectively avoided, and the operation box has the characteristics of long mechanical life, short rotary transmission stroke, simple structure and high transmission efficiency.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

an outdoor spring operation box with an isolation operation device comprises a box body, and an operation mechanism, a breaker transmission main shaft, an isolation rotating shaft, an energy storage spring and an oil buffer which are arranged in the box body, wherein the breaker transmission main shaft and the isolation rotating shaft are rotatably arranged, and the breaker transmission main shaft is also linked with the operation mechanism; an isolation output crank arm is arranged on the isolation rotating shaft; an input crank arm, a buffering impact crank arm and a brake-separating spring driving crank arm are arranged on the circuit breaker transmission main shaft; one end of the opening spring is connected with the box body, and the other end of the opening spring is connected with the opening spring driving crank arm; the oil buffer is arranged on the opposite side of the opening spring and corresponds to the buffering impact crank arm.

Furthermore, the box body is provided with a mechanism bottom plate, a rotating shaft supporting frame and an oil buffer mounting frame are fixed on the mechanism bottom plate, the operating mechanism is fixed on the mechanism bottom plate, and the transmission main shaft and the isolation rotating shaft of the circuit breaker are rotatably assembled on the operating mechanism and the rotating shaft supporting frame; one end of the opening spring is connected to a mechanism bottom plate of the box body; the oil buffer is fixed on the oil buffer mounting frame.

Furthermore, an oil buffer bumping wheel is assembled on the buffering bumping crank arm.

Further, still be equipped with auxiliary switch in the box, still be provided with auxiliary switch drive connecting lever on the circuit breaker transmission main shaft, auxiliary switch drive connecting lever and auxiliary switch linkage.

Furthermore, an interlocking mechanism is arranged between the circuit breaker transmission main shaft and the isolation rotating shaft, the circuit breaker transmission main shaft is limited by the interlocking mechanism when being in a switch-on position, and the interlocking mechanism removes the rotation limitation on the isolation rotating shaft when being in a switch-off position.

Further, interlocking device is including keeping apart interlocking guider, spacing guide pin axle, setting up in the epaxial isolation interlocking drive connecting lever of circuit breaker transmission and setting up in the spacing connecting lever of keeping apart the epaxial isolation interlocking that rotates, it includes the deflector to keep apart interlocking guider, the deflector has the rectangular hole of direction, spacing guide pin axle is fixed in on the box and wears to locate the rectangular downthehole of direction, keep apart interlocking drive connecting lever and connect the first end of deflector, the second end of deflector corresponds keep apart interlocking limit connecting lever.

Further, keep apart interlocking guider still includes reset spring, the deflector still has the rectangular hole of installation, keep apart interlocking drive connecting lever through mobilizable the connecting in the rectangular hole of installation of spacing pin, reset spring assembles in the rectangular downthehole of installation, and its one end butt is on the deflector, and other end butt is on spacing pin.

The utility model provides an outdoor column switch, includes control box and circuit breaker utmost point post, be provided with vacuum interrupter and isolator in the circuit breaker utmost point post, the control box is the aforesaid outdoor spring operation case of taking isolation operating means, the insulating pull rod of circuit breaker of vacuum interrupter is connected to the input connecting lever of circuit breaker transmission main shaft, the insulating pull rod of isolation switch is connected to the isolation output connecting lever of keeping apart the pivot.

Furthermore, the circuit breaker pole comprises an insulating shell, and a primary incoming line contact arm, a vacuum arc-extinguishing chamber, an isolation upper contact arm, an isolation lower contact arm and a primary outgoing line contact arm which are fixedly sealed on the insulating shell; the insulation shell is also provided with a breaker cavity, a sensor cavity and an isolating switch cavity, a breaker insulation pull rod connected with the moving end of the vacuum arc-extinguishing chamber is assembled in the breaker cavity, the primary incoming line contact arm is in electric contact with the moving end of the vacuum arc-extinguishing chamber through flexible connection, the static end of the vacuum arc-extinguishing chamber is in electric contact with the isolating upper contact arm, and a sensor is arranged in the sensor cavity; the isolating switch is assembled in an isolating switch cavity, and the isolating switch cavity is provided with an upper cavity positioned between an isolating upper contact arm and an isolating lower contact arm and a lower cavity positioned below the isolating lower contact arm; the upper chamber has a transparent viewing window.

Furthermore, the isolating switch comprises an isolating contact arm, an insulating guide part and an isolating insulating pull rod, wherein the isolating contact arm is assembled on the isolating lower contact arm in a sliding mode, the insulating guide part is connected to the lower end of the isolating contact arm, and the isolating insulating pull rod is connected to the insulating guide part; the insulating guide part is provided with an insulating cover extending downwards, and the shape of the insulating cover is matched with that of the lower chamber.

Through the technical scheme provided by the invention, the method has the following beneficial effects:

1. the circuit breaker transmission main shaft and the isolation rotating shaft are rotatably arranged; the operating mechanism drives the breaker to switch on by controlling the rotation of the breaker transmission main shaft; the rotary transmission stroke is short and the efficiency is high.

2. The breaker transmission main shaft is correspondingly provided with the opening spring and the oil buffer, when the breaker transmission main shaft is rotated to be closed, the opening spring stores energy so as to provide force for opening rotation, and when the breaker transmission main shaft is rotated to be opened, the oil buffer and the buffering impact crank arm are matched to buffer, so that the mechanical service life is long, and the structure is simple.

The scheme that this application provided improves the driving method for the rotation type through the driving method that closes the separating brake of the back push-and-pull rod formula that advances with the control box, effectively avoids the above-mentioned back push-and-pull rod formula that advances to close the separating brake driving method rigidity poor, and inefficiency waits not enoughly, and still has mechanical life length, rotatory transmission stroke weak point, simple structure and the efficient characteristics of transmission.

Drawings

FIG. 1 is a schematic diagram I of the internal structure of a spring-operated box with an isolated operation device for outdoor use in the embodiment;

FIG. 2 is a second schematic view of the internal structure of the spring-operated case with an isolated operation device for outdoor use in the embodiment;

FIG. 3 is a third schematic view showing the internal structure of the spring-operated case with an isolated operation device for outdoor use in the embodiment;

FIG. 4 is a schematic structural diagram of a transmission spindle of the circuit breaker according to the embodiment;

FIG. 5 is a schematic structural diagram of an isolation spindle according to an embodiment;

FIG. 6 is a first schematic diagram of an interlocking structure of a transmission main shaft and an isolation rotating shaft of the circuit breaker in the embodiment;

FIG. 7 is a schematic diagram of an interlocking structure of a transmission main shaft and an isolation rotating shaft of the circuit breaker in the embodiment;

FIG. 8 is a third schematic view showing an interlocking structure of a transmission main shaft and an isolation rotating shaft of the circuit breaker in the embodiment;

FIG. 9 is a schematic view of the construction of an isolation interlock guide of an embodiment;

FIG. 10 is a schematic structural view of an outdoor pole-mounted switch according to an embodiment;

fig. 11 is a schematic structural view of a breaker pole in an embodiment;

fig. 12 is a schematic structural diagram of a breaker pole in another embodiment.

Detailed Description

To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

Specifically, for convenience of description, the opening position or the closing position of a certain component is described in this embodiment, and refers to a position of the component when a breaker or a disconnector linked with the component is in opening or closing. Taking a breaker transmission main shaft linked with the breaker as an example, when the breaker is in an opening state, the position of the breaker transmission main shaft is an opening position, and when the breaker is in a closing state, the position of the breaker transmission main shaft is a closing position.

The invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 10, the present embodiment provides an outdoor spring operating box 100 with an isolation operating device, including a box body 110, and an operating mechanism 120, a breaker transmission main shaft 130, an isolation rotating shaft 140, a tripping spring 151 and an oil buffer 152 which are arranged in the box body 110, wherein the breaker transmission main shaft 130 and the isolation rotating shaft 140 are rotatably arranged; and the breaker transmission main shaft 130 is linked with the operating mechanism 120. The operating mechanism 120 controls the circuit breaker transmission main shaft 130 to rotate so as to drive the circuit breaker (i.e. the vacuum arc-extinguishing chamber 222 in fig. 10) to close; the rotary transmission stroke is short and the efficiency is high.

An isolation output crank arm 141 is arranged on the isolation rotating shaft 140; the breaker transmission main shaft 130 is provided with an input crank arm 131, a buffering impact crank arm 132 and a brake-separating spring driving crank arm 133; one end of the opening spring 151 is connected with the box body 110, and the other end of the opening spring is connected with the opening spring driving crank arm 133; the oil damper 152 is disposed at an opposite side of the opening spring 151 and corresponds to the damping striking crank arm 132. When the breaker transmission main shaft 130 performs a closing rotation (i.e., rotates in a direction of a closing position), the shunt spring 151 stores energy in a compressed manner. In this embodiment, the circuit breaker transmission main shaft 130 rotates in the direction of the switching-on position when rotating counterclockwise; when the breaker transmission main shaft 130 rotates clockwise, it rotates toward the opening position.

Specifically, the operating mechanism 120 adopts an existing structure, for example, the operating mechanism includes an energy storage motor 121, an energy storage spring 122, a closing holding part and a tripping part, when the operating mechanism works, the energy storage motor 121 drives a breaker transmission main shaft 130 to rotate so as to realize a closing action, and simultaneously, the energy storage spring 122 is compressed to perform compression energy storage; and the closing rotation of the breaker transmission main shaft 130 also compresses and stores energy in the switching spring 151. The closing maintaining part limits the breaker transmission main shaft 130 rotating to the closing position to maintain the closing state; the trip portion is linked with the closing holding portion, and the limit of the closing holding portion is released by the trip operation of the trip portion, so that the breaker transmission main shaft 130 is rotated to open (i.e., rotated in the direction of the opening position).

The breaker transmission main shaft 130 is correspondingly provided with an opening spring 151 and an oil buffer 152, when the breaker transmission main shaft 130 is rotated to be closed, the opening spring 151 stores energy to provide a force for opening rotation, in this embodiment, the force for opening rotation of the breaker transmission main shaft 130 is provided by the opening spring 151 and the energy storage spring 122 together, and of course, in other embodiments, the force may be directly provided by the opening spring 151 without the structure of the energy storage spring 122.

When the breaker transmission main shaft 130 is in brake-off rotation, the oil buffer 152 is matched with the buffer impact crank arm 132 for buffering, so that the mechanical service life is long, and the structure is simple.

The scheme that this application provided improves the driving method for the rotation type through the driving method that closes the separating brake with the back pushing-type that advances of control box, effectively avoids the not enough of the aforesaid close separating brake driving method that advances the back pushing-type, and still has mechanical life long, rotatory transmission stroke is short, simple structure and the efficient characteristics of transmission.

Further, in this embodiment, the box body 110 has a mechanism bottom plate 111, a rotating shaft support frame 113 and an oil buffer mounting frame 112 are fixed on the mechanism bottom plate 111, the operating mechanism 120 is fixed on the mechanism bottom plate 111, and the breaker transmission main shaft 130 and the isolation rotating shaft 140 are both rotatably assembled on the operating mechanism 120 and the rotating shaft support frame 113; one end of the opening spring 151 is connected to the mechanism bottom plate 111 of the box body 110; the oil buffer 152 is fixed to the oil buffer mounting frame 112. Therefore, all the components are directly or indirectly assembled on the mechanism bottom plate 111, and only the mechanism bottom plate 111 needs to be reinforced, so that the stability is high; and also reduces the requirements for other side panels of the cabinet 110.

An oil buffer striker 1321 is mounted on the buffer striker crank arm 132. When the brake is opened, the breaker transmission main shaft 130 can more effectively separate the excess energy of the absorption and absorption operating mechanism by the oil buffer collision wheel 1321 on the buffer collision crank arm 132 colliding with the oil buffer 152.

Still be equipped with auxiliary switch 160 in the box 110, it is specific, auxiliary switch 160 assembles on pivot support frame 113, still be provided with auxiliary switch drive connecting lever 135 on the circuit breaker transmission main shaft 130, auxiliary switch drive connecting lever 135 and auxiliary switch 160 linkage. In this way, the switching operation can be indicated to the outside through the auxiliary switch 160.

An interlocking mechanism is arranged between the circuit breaker transmission main shaft 130 and the isolation rotating shaft 140, when the circuit breaker transmission main shaft 130 is in a switching-on position, the isolation rotating shaft 140 is limited to rotate through the interlocking mechanism (as shown in fig. 6 and 7), and when the circuit breaker transmission main shaft 130 is in a switching-off position, the interlocking mechanism removes the rotation limitation on the isolation rotating shaft 140 (as shown in fig. 8). With the arrangement, when the circuit breaker (such as the vacuum arc-extinguishing chamber 222 in fig. 10 and 11) is switched on, the rotation of the isolation rotating shaft 140 is limited through the interlocking mechanism, that is, the isolation switch (such as the isolation switch 230 in fig. 10 and 11) is limited to be switched on and switched off, and only after the circuit breaker is switched off, the isolation switch can be operated, so that sequential interlocking is realized, and the safety is higher.

Further, the interlocking mechanism includes an isolation interlocking guide device 170, a limit guide pin shaft 175, an isolation interlocking driving crank arm 134 disposed on the circuit breaker transmission main shaft 130, and an isolation interlocking limit crank arm 142 disposed on the isolation rotating shaft 140, the isolation interlocking guide device 170 includes a guide plate 171, the guide plate 171 has a guide strip hole 172, the limit guide pin shaft 175 is fixed on the box body 10 (specifically, fixed on the rotating shaft support frame 113) and penetrates through the guide strip hole 172, that is, the movable range of the guide plate 171 is the range of relative movement of the guide strip hole 172 and the limit guide pin shaft 175, and has a positioning function. The isolation interlock actuating crank 134 is connected to a first end of a guide plate 171, and a second end of the guide plate 171 corresponds to the isolation interlock limiting crank 142.

When the circuit breaker transmission main shaft 130 performs switching-on rotation or switching-off rotation, the guide plate 171 is driven to be close to or far away from the isolation rotating shaft 140, that is, when the circuit breaker transmission main shaft 130 performs switching-on rotation, the guide plate 171 is driven to be close to the isolation rotating shaft 140, so that the guide plate 171 is positioned on a swing track of the isolation interlocking limit connecting lever 142, and thus, the isolation interlocking limit connecting lever 142 can be limited from swinging, that is, the isolation rotating shaft 140 cannot perform switching-on rotation or switching-off rotation; more specifically, when the circuit breaker is in the closed state, the disconnector cannot be operated, as shown in fig. 6 and 7. When the circuit breaker transmission main shaft 130 performs opening rotation, the guide plate 171 is driven to be away from the isolation rotating shaft 140, so that the guide plate 171 is separated from the swing track of the isolation interlocking limit crank arm 142, and the isolation rotating shaft 140 can normally rotate without being limited, so as to control the opening and closing of the isolation switch, as shown in fig. 8.

Further preferably, in order to avoid the guide plate 171 from rigidly striking the isolating interlocking limit lever 142 when the disconnector is still in motion in sudden operation of the circuit breaker (i.e. the isolating rotary shaft 140 also suddenly drives the circuit breaker drive main shaft 130 to rotate in rotation), in this embodiment, the isolating interlocking guide device 170 further includes a return spring 174, the guide plate 171 further has a mounting elongated hole 173, the isolating interlocking drive lever 134 is movably connected to the mounting elongated hole 173 through a limit pin, and the return spring 174 is assembled in the mounting elongated hole 173, and one end of the return spring abuts against the guide plate 171, and the other end of the return spring abuts against the limit pin. Due to the arrangement of the return spring 174, the guide plate 171 has a certain buffering effect, so that the rigid impact of the guide plate 171 on the isolation interlocking limit crank arm 142 can be effectively avoided, and after the isolation switch finishes operation (namely, the isolation rotating shaft 140 finishes rotation), the guide plate 171 automatically slides into a limit state under the action of the return spring 174.

Continuing to refer to fig. 10 and 11, this embodiment further provides an outdoor pole-mounted switch, which includes an operation box and a breaker pole 200, where a vacuum arc-extinguishing chamber 222 and a disconnector 230 are disposed in the breaker pole 200, the operation box is the above-mentioned outdoor spring operation box 100 with an isolation operation device, an input crank arm 131 of the breaker transmission main shaft 130 is connected to a breaker insulation pull rod 2221 of the vacuum arc-extinguishing chamber 222, and the breaker transmission main shaft 130 controls switching on and off of the vacuum arc-extinguishing chamber 222; the isolation output crank arm 141 of the isolation rotating shaft 140 is connected with an isolation insulation pull rod 233 of the isolation switch 230; the isolation shaft 140 controls the on/off of the isolation switch 230.

Further, in this embodiment, the breaker pole 200 includes an insulating housing 210, and a primary incoming contact arm 221, a vacuum interrupter 222, an isolation upper contact arm 223, an isolation lower contact arm 224, and a primary outgoing contact arm 225, which are fixedly sealed on the insulating housing 210; the insulating housing 210 is further formed with a circuit breaker cavity 2101, a sensor cavity 2102 and a disconnector cavity 2103, the circuit breaker cavity 2101 is internally equipped with a circuit breaker insulating pull rod 2221 connected with the movable end of the vacuum arc-extinguishing chamber 222, and on/off control of the vacuum arc-extinguishing chamber 222 is realized by controlling the circuit breaker insulating pull rod 2221.

The first incoming line contact arm 221 is in electrical contact with the moving end of the vacuum arc-extinguishing chamber 222 through a flexible connection 227, the static end of the vacuum arc-extinguishing chamber 222 is in electrical contact with the isolation upper contact arm 223, specifically, the isolation connecting bar 228 is further fixedly sealed in the insulation housing 210, and the static end of the vacuum arc-extinguishing chamber 222 is in electrical contact with the isolation upper contact arm 223 through the isolation connecting bar 228. The isolated lower contact arm 224 is in electrical contact with the primary outlet contact arm 225.

A sensor (in this specific embodiment, an outlet side voltage sensor 242) is arranged in the sensor cavity 2102; the isolation switch cavity 2103 is equipped with an isolation switch 230, and the isolation switch cavity 2103 is provided with an upper chamber 21031 positioned between an isolation upper contact arm 223 and an isolation lower contact arm 224 and a lower chamber 21032 positioned below the isolation lower contact arm 224; the upper chamber 21031 has a transparent viewing window 2131.

Has the following beneficial effects:

1. the vacuum arc-extinguishing chamber 222 and the disconnector 230 are integrated in the same insulating housing 210, and have the functions of a circuit breaker and a disconnector, so that the structure is compact.

2. A sensor cavity 2102 is further formed in the insulating housing 210, and is used for assembling a sensor, so that parameters of the conducting circuit can be sensed in real time, and the pole-mounted switch has an intelligent switch function.

3. The upper chamber 21031 of the isolating switch cavity 2103 is provided with a transparent observation window 2131, so that the on/off condition of the isolating switch 230 can be visually confirmed, and the field maintenance and overhaul are facilitated.

In conclusion, the multifunctional integration of miniaturization, intellectualization, visual isolation switch and full solid-sealed insulation of the charged body of the pole-mounted switch is realized.

Specifically, the insulating housing 210 further fixedly encloses a current sensor coil 226, and the current sensor coil 226 is sleeved outside the primary incoming line contact arm 221 and used for sensing incoming line current.

Further, the insulating housing 210 includes a main housing 211, a silicone housing 212, and a transparent cover 213, where the main housing 211 is integrally injection-molded by thermoplastic engineering plastics, and in this embodiment, is injection-molded by an epoxy resin APG. The main housing 211 fixedly seals the primary incoming line contact arm 221, the vacuum arc-extinguishing chamber 222, the isolation upper contact arm 223, the isolation lower contact arm 224 and the primary outgoing line contact arm 225; the transparent cover 213 is mounted between the upper contact arm 223 and the lower contact arm 224, and thus the transparent cover 213 is the transparent viewing window 2131. Silica gel shell 212 covers the surface of main casing body 211, and silica gel shell 212 plays further outdoor protection and insulating effect, more is applicable to the open air.

More specifically, the transparent observation window 2131 is tempered explosion-proof glass, that is, the transparent cover 213 is a tempered explosion-proof glass cover; the structure is stable. Of course, in other embodiments, the transparent viewing window 2131 may be made of other transparent and firm materials.

The isolating switch 230 comprises an isolating contact arm 231, an insulating guide 232 and an isolating insulating pull rod 233, wherein the isolating contact arm 231 is slidably assembled on the isolating lower contact arm 224, the insulating guide 232 is connected to the lower end of the isolating contact arm 231, and the isolating insulating pull rod 233 is connected to the insulating guide 232; the isolation contact arm 231 is driven to slide up and down by pulling the isolation insulation pull rod 233, and when the isolation contact arm 231 moves up to be connected with the isolation upper contact arm 223 and the isolation lower contact arm 224 at the same time, the isolation switch 230 is in a closed state, namely, a working state; when the isolation contact arm 231 moves down to be separated from the isolation upper contact arm 223, the isolation switch 230 is in an off state, i.e., an isolation state.

More specifically, in order to make the isolation contact arm 231 better electrically contact with the isolation upper contact arm 223 and the isolation lower contact arm 224, in this embodiment, the isolation upper contact arm 223 and the isolation lower contact arm 224 are both provided with a conductive spring contact finger 229, and are electrically contacted with the isolation contact arm 231 through the conductive spring contact finger 229.

More specifically, in this embodiment, the insulation guide 232 has an insulation cover 2321 extending downward, and the insulation cover 2321 plays a good role in isolating an arc, and can also effectively prevent a large amount of external air or dust from flowing into the upper chamber 21031. The shape of the insulating cover 2321 is matched with the lower chamber 21032, so that the insulating cover 2321 and the lower chamber 21032 can also play a role in guiding and matching, and the isolating contact arm 231 is not eccentric or displaced when moving up and down rapidly.

The breaker cavity 2101 is also equipped with inlet side voltage sensor 241, inlet side voltage sensor 241 touches arm 221 electrical contact with once-through inlet wire, and this inlet side voltage sensor 241's setting is used for gathering inlet side's power energy and voltage information, and follow-up output is to control system for control system monitoring and judgement.

The sensor cavity 2102 is located between the breaker cavity 2101 and the isolating switch cavity 2103, so that the distance between the vacuum arc extinguish chamber 222 and the isolating switch 230 is increased as much as possible, the insulating effect is better, and meanwhile, the subsequent assembling connection with an operating mechanism is facilitated.

The sensor assembled in the sensor cavity 2102 is an outlet side voltage sensor 242, and the outlet side voltage sensor 242 is in electrical contact with the isolated lower contact arm 224; the outlet side voltage sensor 242 is configured to collect power energy and voltage information of the outlet side, and subsequently output the power energy and voltage information to the control system for monitoring and determination by the control system.

In this embodiment, the incoming line side voltage sensor 241 and the outgoing line side voltage sensor 242 are both electronic voltage sensors with a combination of high-voltage thick-film resistors and capacitors.

Of course, in other embodiments, other sensors may be used as the sensor mounted in the sensor cavity 2102, such as an incoming line electricity sensor 243 shown in fig. 12, where the incoming line electricity sensor 243 is electrically contacted with the primary incoming line contact arm 221; specifically, the incoming line electricity sensor 243 sequentially passes through the conductive block 251, the high-voltage lead 252 and the flexible connection 227 to achieve electrical contact with the primary incoming line contact arm 221. That is, the incoming line electricity sensor 243 is connected with the conductive block 251, the conductive block 251 is connected with the high-voltage lead 252, the high-voltage lead 252 is connected with the flexible connection 227, and the flexible connection 227 is connected with the primary incoming line contact arm 221.

The incoming line electricity-taking sensor 243 is arranged for providing electric energy for the operation and data transmission of the control terminal of the switch device, and is an electricity-taking sensor for voltage division of a high-voltage ceramic capacitor and composed of a voltage division device and a transformer module.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides an outdoor spring operation case of taking isolation operation device, includes the box and sets up the operating mechanism in the box, its characterized in that: the breaker transmission main shaft and the isolation rotating shaft are rotatably arranged, and the breaker transmission main shaft is also linked with an operating mechanism; an isolation output crank arm is arranged on the isolation rotating shaft; an input crank arm, a buffering impact crank arm and a brake-separating spring driving crank arm are arranged on the circuit breaker transmission main shaft; one end of the opening spring is connected with the box body, and the other end of the opening spring is connected with the opening spring driving crank arm; the oil buffer is arranged on the opposite side of the opening spring and corresponds to the buffering impact crank arm.

2. The outdoor spring-operated box with an isolated operation device of claim 1, wherein: the box body is provided with a mechanism bottom plate, a rotating shaft supporting frame and an oil buffer mounting frame are fixed on the mechanism bottom plate, the operating mechanism is fixed on the mechanism bottom plate, and the transmission main shaft of the circuit breaker and the isolation rotating shaft are rotatably assembled on the operating mechanism and the rotating shaft supporting frame; one end of the opening spring is connected with a mechanism bottom plate of the box body; the oil buffer is fixed on the oil buffer mounting frame.

3. The outdoor spring-operated box with an isolated operation device of claim 1, wherein: and an oil buffer bumping wheel is assembled on the buffer bumping crank arm.

4. The outdoor spring-operated box with an isolated operation device of claim 1, wherein: still be equipped with auxiliary switch in the box, still be provided with auxiliary switch drive connecting lever on the circuit breaker transmission main shaft, auxiliary switch drive connecting lever and auxiliary switch linkage.

5. The outdoor spring-operated box with an isolated operation device of claim 1, wherein: an interlocking mechanism is arranged between the circuit breaker transmission main shaft and the isolation rotating shaft, the circuit breaker transmission main shaft is limited by the interlocking mechanism when being in a switching-on position, and the circuit breaker transmission main shaft is in a switching-off position, and the interlocking mechanism removes the rotation limitation on the isolation rotating shaft.

6. The outdoor spring-operated box with isolation operating device of claim 5, wherein: interlocking device is including keeping apart interlocking guider, spacing guide pin axle, setting up in the epaxial isolation interlocking drive connecting lever of circuit breaker transmission and setting up in the spacing connecting lever of the epaxial isolation interlocking of keeping apart, keep apart interlocking guider and include the deflector, the deflector has the rectangular hole of direction, spacing guide pin axle is fixed in on the box and wears to locate the rectangular downthehole of direction, keep apart interlocking drive connecting lever and connect the first end of deflector, the second end of deflector corresponds keep apart interlocking limit connecting lever.

7. The outdoor spring-operated box with an isolated operation device of claim 6, wherein: keep apart interlocking guider still includes reset spring, the deflector still has the rectangular hole of installation, keep apart interlocking drive connecting lever through mobilizable connection in the rectangular hole of installation of spacing pin, reset spring assembles in the rectangular downthehole of installation, and its one end butt is on the deflector, and other end butt is on spacing pin.

8. The utility model provides an outdoor column switch, includes control box and circuit breaker utmost point post, its characterized in that: the outdoor spring operation box with the isolation operation device is characterized in that a vacuum arc-extinguishing chamber and a disconnecting switch are arranged in a pole of the circuit breaker, the operation box is the spring operation box with the isolation operation device according to any one of claims 1 to 7, an input connecting lever of a transmission main shaft of the circuit breaker is connected with an insulation pull rod of the circuit breaker of the vacuum arc-extinguishing chamber, and an isolation output connecting lever of an isolation rotating shaft is connected with an isolation insulation pull rod of the disconnecting switch.

9. The outdoor pole top switch of claim 8, wherein: the circuit breaker pole comprises an insulating shell, and a primary incoming line contact arm, a vacuum arc-extinguishing chamber, an isolation upper contact arm, an isolation lower contact arm and a primary outgoing line contact arm which are fixedly sealed on the insulating shell; the insulation shell is also provided with a circuit breaker cavity, a sensor cavity and an isolation switch cavity, a circuit breaker insulation pull rod connected with the movable end of the vacuum arc extinguish chamber is assembled in the circuit breaker cavity, the primary incoming line contact arm is electrically contacted with the movable end of the vacuum arc extinguish chamber through flexible connection, the static end of the vacuum arc extinguish chamber is electrically contacted with the isolation upper contact arm, and a sensor is arranged in the sensor cavity; the isolating switch is assembled in an isolating switch cavity, and the isolating switch cavity is provided with an upper cavity positioned between an isolating upper contact arm and an isolating lower contact arm and a lower cavity positioned below the isolating lower contact arm; the upper chamber has a transparent viewing window.

10. The outdoor pole top switch of claim 9 wherein: the isolating switch comprises an isolating contact arm, an insulating guide part and an isolating insulating pull rod, wherein the isolating contact arm is assembled on the isolating lower contact arm in a sliding mode, the insulating guide part is connected to the lower end of the isolating contact arm, and the isolating insulating pull rod is connected to the insulating guide part; the insulating guide part is provided with an insulating cover extending downwards, and the shape of the insulating cover is matched with that of the lower chamber.

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