CN108807062A - A kind of isolation switch device based on automatic drawing function - Google Patents

Abstract

The present invention provides an isolation knife switch device based on automatic pull-on function, which includes an isolation knife switch, a control mechanism, an automatic pull-on actuator and a manual pull-on mechanism, and the control mechanism includes a remote control terminal, a control box, a controller and The operation panel, the automatic pulling and closing actuator include a first support plate, an insulating rod, a spring and an electric push rod, and the manual pulling and closing mechanism includes a pull rope. In practical application, the isolation knife on the pole tower can be opened or closed by manipulating the remote control terminal or the operation panel on the ground or pulling the pull rope, which greatly reduces the work intensity of the staff and improves work efficiency at the same time.

Description

An Isolation Knife Switch Device Based on Automatic Pulling and Closing Function

technical field

The invention relates to an isolating knife switch device based on an automatic pulling function.

Background technique

When the line branch line is powered off for maintenance and defect elimination work, the staff need to operate the switch and isolation knife switch that controls the branch line. The staff uses the insulating operating rod to pull the isolation knife switch, so that the main line and the branch line have a clear disconnection point. . The isolating knife switch is a kind of high-voltage switch. It plays an important role in isolating the power supply, changing the operating mode of the system, switching on and off the small load current, and performing switching operations in the operation of the power system. The main function is that when the circuit breaker disconnects the circuit, Due to the disconnection of the isolation knife switch, the active and non-electrical parts can be clearly isolated and act as an auxiliary switch. The high-voltage isolation switch is a device that disconnects or connects high-voltage lines under no-load conditions, and electrically isolates electrical equipment such as high-voltage busbars and circuit breakers that are being repaired from live high-voltage lines. There is a lot of work to close the isolation knife switch, which causes a heavy workload for the staff, and when the isolation knife switch is at a high position, the staff can only work on the pole or use a crane to work, which brings inconvenience and safety risks to the staff and poses a threat to maintenance. , The work of eliminating shortfalls and power outages increases the difficulty.

Contents of the invention

The purpose of the present invention is to provide an isolation knife switch device based on the automatic pulling function. In practical applications, the automatic opening or closing of the isolation knife on the tower can be realized by manipulating the remote control terminal or the ground control operation panel, thereby greatly The work intensity of the staff is reduced, and the work efficiency is also improved.

The technical solution adopted by the present invention to solve the technical problem is: an isolation knife switch device based on the automatic pull-on function, including an isolation knife switch, a control mechanism, an automatic pull-on actuator and a manual pull-on mechanism. Located on the cross arm of the tower, the control mechanism includes a remote control terminal, a control box, a controller and an operation panel, the control box is arranged at the lower part of the tower, the controller and the operation panel are arranged in the control box, the control The device is electrically connected with the operation panel, and the remote control terminal can send a control signal to the controller through wireless communication technology, and a closing button and a pull-down button are arranged on the control panel;

The automatic pulling actuator includes a first support plate, an insulating rod, a spring and an electric push rod. The first support plate is arranged on the pole tower and is located below the isolation knife switch. The upper end of the insulating rod is connected to the The pull ring on the isolation knife of the isolation knife switch is hingedly connected, the second support plate and the L-shaped support plate are arranged on the first support plate, and the middle part of the insulating rod is sleeved on the L-shaped support plate. In the first oblong hole of the insulating rod, the lower part of the insulating rod is sleeved in the second oblong hole provided on the second support plate, and the position adjacent to the second oblong hole of the insulating rod is provided distributed third oblong holes, and in the second oblong hole, a limit rod that passes through the third oblong hole is provided, and a limit plate located below the first oblong hole is arranged on the insulating rod, and the spring is sleeved On the insulating rod, and the spring is clamped between the limiting plate and the second supporting plate, the bottom of the electric push rod is arranged on the L-shaped supporting plate, and is located adjacent to the insulating rod. A push plate is arranged at the bottom of the insulating rod, and a round rod corresponding to the push plate is arranged on the movable rod of the electric push rod, and the electric push rod is connected with the controller through electric wires;

The manual pulling mechanism includes a pull rope, one end of the pull rope is connected to a pull ring provided at the bottom of the insulating rod, and the other end of the pull rope is located in the control box.

Preferably, the push plate is a U-shaped plate, the round rod is buckled in the U-shaped groove of the U-shaped plate, and a front end side of the movable rod of the electric push rod is provided on the U-shaped plate. Corresponding openings in the walls.

Further, a digital input keyboard is provided on the operation panel, and a password identification module is provided in the controller, and the controller operation password can be input into the controller through the digital input keyboard.

Further, a take-up wheel for winding the pull cord is arranged in the control box.

Further, a support ring for supporting stay ropes and electric wires is provided on the pole tower.

Further, protective covers distributed along the direction of the stay ropes and electric wires are arranged on the pole tower.

The beneficial effects of the present invention are: the present invention is simple in structure, and the pull-down action of the isolation knife can be realized by controlling the operation of the electric push rod through the controller, so that it can replace manual climbing operations, which not only reduces labor intensity, but also improves work efficiency; Controlling the operation of the electric push rod can be realized through the remote control terminal or the operation panel on the ground, which makes the operation of the present invention convenient and practical; The pushing action realizes the pull-down of the isolating knife, and the pushing action of the spring realizes the closing of the isolating knife, so that when there is a problem with the controller, the pull-down action of the isolating knife can be realized manually through the pull rope, thus providing a reliable pull-down of the isolating knife Guaranteed; the drawstring and wires are protected by a protective cover, which can prevent the drawstring and wire from rapidly aging, and secondly, prevent the drawstring from being exposed to the outside, preventing non-staff from pulling the drawstring; only through the digital input keyboard After entering the correct password and being verified by the password identification module, the controller can receive the control signals sent by the closing button and the pulling button, which can effectively prevent non-staff from illegally opening the control box and illegally operating the pulling button and closing button. button.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some preferred embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a partial side view of the present invention;

Figure 3 is a cross-sectional view of the joint between the insulating rod and the second support plate;

Figure 4 is an enlarged view of A in Figure 1;

In the figure: 1 isolation knife switch, 11 isolation knife, 21 control box, 22 controller, 23 control panel, 231 closing button, 232 pull down button, 233 digital input keyboard, 24 take-up wheel, 25 wire, 31 first support Plate, 311L type support plate, 3111 first oblong hole, 312 second support plate, 3121 second oblong hole, 3122 limit rod, 32 insulating rod, 321 third oblong hole, 322 limit plate, 323 hanging ring, 324 Push plate, 3241 opening, 33 spring, 34 electric push rod, 341 round rod, 41 pull rope, 101 pole tower, 102 cross arm, 103 support ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with specific embodiments and accompanying drawings 1-4. Apparently, the described embodiments are only some preferred embodiments of the present invention, not all of them. example. Those skilled in the art can make similar modifications without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

The invention provides an isolation knife switch device based on the automatic pull-on function, including an isolation switch, a control mechanism, an automatic pull-on actuator and a manual pull-on mechanism. The isolation switch 1 is a commonly used electrical component in the field of power supply, mainly including insulation The column and the isolation knife 11 are formed, the isolation knife 11 is provided with a pull ring, the isolation knife switch 1 is located on the cross arm 102 of the pole tower 101, and the control mechanism includes a remote control terminal, a control box 21, a controller 22 and an operation panel 23. The control box 21 is arranged at the lower part of the pole tower 101, and the staff can touch the control box 21 standing on the ground. The control box 21 has a box cover, and the box cover is locked with a lock. The controller 22 and the operation panel 23 is set in the control box 21, the controller 22 is electrically connected with the operation panel 23, and the remote control terminal can send control signals to the controller 22 through wireless communication technology. The wireless communication technology is a mature technology on site, so this specific In the embodiment, the specific implementation of the wireless control controller 22 of the remote control terminal will not be described in detail again. On the control panel 23, a close button 231 and a pull-down button 232 are arranged, and the close button 231 and the pull-down button 232 act Afterwards, the signal it generates is directly recognized by the controller 22 .

The automatic pulling actuator includes a first support plate 31, an insulating rod 32, a spring 33 and an electric push rod 34. The first support plate 31 is arranged on the pole tower 101 and is located below the isolation switch 1, The upper end of the insulating rod 32 is hingedly connected to the pull ring on the isolating knife 11 of the isolating knife gate 1, and the second supporting plate 312 and the L-shaped supporting plate 311 are arranged on the first supporting plate 31, and the insulating bar 32 is nested in the first oblong hole 3111 provided on the L-shaped support plate 311, and the lower part of the insulating rod 32 is nested in the second oblong hole 3121 provided on the second support plate 312. A third oblong hole 321 distributed along the axial direction of the insulating rod 32 is provided at the position where the insulating rod 32 is adjacent to the second oblong hole 3121 , and a limit penetrating through the third oblong hole 321 is provided in the second oblong hole 3121 Position rod 3122, on the insulating rod 32 is provided with a limiting plate 322 below the first oblong hole 3111, the spring 33 is sleeved on the insulating rod 32, and the spring 33 is stuck in the position limiting Between the plate 322 and the second support plate 312, the upper closing action of the isolation knife 11 can be realized by the thrust of the spring 33. The bottom of the electric push rod 34 is arranged on the L-shaped support plate 311 and is located on the insulating rod 32. Adjacent, a push plate 324 is set at the bottom of the insulating rod 32, and a round rod 3241 corresponding to the push plate 324 is set on the movable rod of the electric push rod 34, and the electric push rod 34 and Described controller 22 is connected by electric wire 103, and when the movable rod of electric push rod 34 stretches out, round rod 341 gives push plate 324 a thrust, makes insulating rod 32 can overcome the elastic force of spring 33 and move downwards, and insulating rod 32 The movement will drive the isolation knife 11 to complete the pull-down action. When the insulating rod 32 moves downward, there will be a swinging action at the same time. For the convenience of the round rod 341 and the push plate 324 are always attached. In the U-shaped plate, the round rod 341 is fastened in the U-shaped groove of the U-shaped plate, and an opening 3411 corresponding to the front side wall of the movable rod of the electric push rod 34 is provided on the U-shaped plate.

In the actual application process, the staff sends a pull-down control signal to the controller 22 through the remote control terminal. After the controller 22 receives the signal, it will start the electric push rod 34, thereby realizing the pull-down action of the isolation knife 11. When the isolation knife 11 is closed, the staff sends a closing control signal to the controller 22 through the remote control terminal. After the controller 22 receives the signal, it will start the electric push rod 34 again, so that the electric push rod 34 retracts and the insulation Under the action of the spring 33, the rod 32 pushes back the isolation knife 11 to complete the upper closing action; the staff can also complete the pull-down or upper closing of the isolation knife 11 through ground operation. When operating on the ground, the staff will control the box 21. The case cover of 21 is opened, then, press the pull-down button 232 or the upper-close button 231, after the controller 22 receives the signal of the pull-down button 232 or the upper-close button 231, control the push-down or retraction of the electric push rod 34, and then Complete the pull-down or closing action of the isolation knife 11; to prevent the non-staff from performing the closing or pull-down of the isolation knife 11 on the ground, here, a numeric input keyboard 233 is provided on the operation panel 23, and the controller 22 is provided with a password identification module, and the controller operation password can be input into the controller 22 through the digital input keyboard 233. In practical applications, only after the correct password is input through the digital input keyboard 233 and verified by the password identification module, the controller 22 just can normally receive the signal that the closing button 231 and the pull-down button 232 send, otherwise, simply pressing the closing button 231 and the pull-down button 232 cannot start the action of the electric push rod 34.

The manual pulling mechanism includes a stay cord 41, one end of the stay cord 41 is connected to a pull ring 323 provided at the bottom of the insulating rod 32, the other end of the stay cord 41 is located in the control box 21, and is controlled After the device 21 breaks down, the pull-down action of the isolation knife 11 can be realized by the stay cord 41. For the convenience of the end of the stay cord 41, the end of the stay cord 41 is placed in an orderly manner in the control box 21. The take-up reel 24.

In order to make the stay rope 41 and the electric wire 25 be arranged in an orderly manner on the pole tower 101, here, a support ring 103 supporting the stay rope 41 and the electric wire 25 is provided on the pole tower 101. Pull the stay rope 41, here, on the pole tower 101, a protective cover distributed along the distribution path of the stay rope 41 and the electric wire 25 (in order to keep the drawing clear, it is not drawn in the accompanying drawings).

Except for the technical features described in the instructions, all are known technologies by those skilled in the art.

The above described the preferred embodiments and embodiments of the present invention in detail in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments and embodiments, for those of ordinary skill in the art, without departing from the present invention Under the premise of the concept, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (6)

1. An isolating knife switch device based on automatic pulling function, comprising isolating knife switch, said isolating knife switch is located on the crossarm of pole tower, it is characterized in that, the device also includes control mechanism, automatic pulling and closing actuator and manual Pulling mechanism, the control mechanism includes a remote control terminal, a control box, a controller and an operation panel, the control box is arranged at the lower part of the tower, the controller and the operation panel are arranged in the control box, the controller and the operation panel The panel is electrically connected, and the remote control terminal can send a control signal to the controller through wireless communication technology, and a closing button and a pulling button are arranged on the control panel; The automatic pulling actuator includes a first support plate, an insulating rod, a spring and an electric push rod. The first support plate is arranged on the pole tower and is located below the isolation knife switch. The upper end of the insulating rod is connected to the The pull ring on the isolation knife of the isolation knife switch is hingedly connected, the second support plate and the L-shaped support plate are arranged on the first support plate, and the middle part of the insulating rod is sleeved on the L-shaped support plate. In the first oblong hole of the insulating rod, the lower part of the insulating rod is sleeved in the second oblong hole provided on the second support plate, and the position adjacent to the second oblong hole of the insulating rod is provided distributed third oblong holes, and in the second oblong hole, a limit rod that passes through the third oblong hole is provided, and a limit plate located below the first oblong hole is arranged on the insulating rod, and the spring is sleeved On the insulating rod, and the spring is clamped between the limiting plate and the second supporting plate, the bottom of the electric push rod is arranged on the L-shaped supporting plate, and is located adjacent to the insulating rod. A push plate is arranged at the bottom of the insulating rod, and a round rod corresponding to the push plate is arranged on the movable rod of the electric push rod, and the electric push rod is connected with the controller through electric wires; The manual pulling mechanism includes a pull rope, one end of the pull rope is connected to a pull ring provided at the bottom of the insulating rod, and the other end of the pull rope is located in the control box. 2. The isolating knife switch device based on the automatic pulling function according to claim 1, wherein the push plate is a U-shaped plate, and the round rod is buckled in the U-shaped groove of the U-shaped plate Inside, there is an opening corresponding to the front end side wall of the movable rod of the electric push rod on the U-shaped plate. 3. A kind of isolating knife switch device based on automatic pulling function according to claim 2, it is characterized in that, a digital input keyboard is arranged on the said operation panel, a password identification module is arranged in said controller, The controller operation password can be input into the controller through the number input keyboard. 4. The isolating knife switch device based on the automatic pull-on function according to claim 3, wherein a take-up wheel for winding the pull rope is arranged in the control box. 5 . The isolation knife switch device based on the automatic pulling function according to claim 4 , wherein a support ring for supporting stay ropes and electric wires is arranged on the pole tower. 6 . 6 . The isolation knife switch device based on the automatic pulling function according to claim 5 , characterized in that, protective covers distributed along the direction of the stay ropes and electric wires are arranged on the pole tower. 7 .