Multi-loop electric control disconnecting switch

Abstract

The invention discloses a multi-loop electric control isolating switch, which belongs to the technical field of electrical switches and comprises an epoxy porcelain bottle, an epoxy porcelain bottle base plate, an isolating knife clamp, an isolating blade, an epoxy support, an epoxy wiring terminal, an epoxy push rod, a servo motor, a motor fixing bottom plate and an external frame for bearing the components, the epoxy porcelain bottle base plate is fixed at one end of the epoxy porcelain bottle, and the other end of the epoxy porcelain bottle is connected with the top of the external frame; an epoxy push rod and an epoxy support are connected into a whole through a connecting piece, an isolation blade is fixed to a fixing screw hole of the epoxy support through a screw, the lower end of the epoxy push rod is fixed to a reserved screw hole of a servo motor lifting mechanism through a screw, and a servo motor is fixed to a motor fixing bottom plate and connected with an external frame through the motor fixing bottom plate. The mechanism combination realizes on-off of a switch through lifting of a servo motor. The device is safe and stable to operate, the servo motor is used for adjusting opening and closing, convenience and labor saving are achieved, and the market vacancy phenomenon is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical switches, and in particular relates to a multi-circuit electrically controlled isolating switch, which realizes the adjustment of the number of switch circuits and the separation and combination of the electrically controlled isolating switch. Background Art

[0002] Isolating switches are widely used in the power switch industry, and they play the role of isolating power supply and switching operation, forming a clearly visible disconnection point. During the power outage and maintenance of electrical equipment, isolating switches are usually used to isolate the electrical equipment to be repaired from the power supply. At present, the general structure of the known isolating switches is composed of isolating knife clamps, isolating blades, inlet and outlet lead terminals and bases. Generally, it is a combination mechanism of single blade, double blade, three blades or four blades, which can control the on and off of the power supply at the same time in single-phase and three-phase lines. When isolating switches are needed for multi-circuit circuits with more than four circuits, there are no finished products available on the market, which cannot meet the use needs. There are also no finished products of multi-circuit electric operating mechanisms on the market. At present, there is a situation in the power system that requires multi-circuit switches to be opened and closed at the same time. Using multiple isolating switches at the same time cannot meet the synchronization requirements, which affects the use of multi-circuit power equipment. There is a market gap, and such products are urgently needed to meet the power use needs. Summary of the invention

[0003] In order to solve the above technical problems, the present invention proposes a multi-circuit electric control isolating switch, in which an epoxy porcelain bottle pad is fixed on an external frame, and an isolating knife head fixed on an epoxy support and an isolating knife clamp of the epoxy porcelain bottle pad are used to form a multi-circuit isolating switch. The opening and closing operation of the switch is controlled by a servo motor, and the isolating switch can be operated remotely and locally, and the control method is flexible. The servo motor used in the present invention can control the speed of opening and closing and the insulation spacing of the knife clamp blade, and the operation is safe and stable, and the use of the servo motor to adjust the opening and closing is convenient and labor-saving.

[0004] In order to achieve the above object, the present invention adopts the following technical scheme:

[0005] A multi-circuit electric control isolating switch comprises an epoxy porcelain bottle, an epoxy porcelain bottle pad, an isolating knife clamp, an isolating blade, an epoxy support, an epoxy terminal, an epoxy push rod, a servo motor, a motor fixed base plate and an external frame carrying the above components, wherein the epoxy porcelain bottle pad is fixed to one end of the epoxy porcelain bottle, and the other end of the epoxy porcelain bottle is connected to the top of the external frame; the epoxy push rod is connected to the epoxy support through a connector, the epoxy push rod is connected to the lifting mechanism of the servo motor, and is connected to the external frame through the motor fixed base plate, and the switch is opened and closed by the lifting of the servo motor; the isolating knife clamp is fixed to the epoxy porcelain bottle pad, and the isolating blade is fixed to the epoxy support. According to the number of circuits required, a corresponding number of epoxy porcelain bottles, epoxy porcelain bottle pads, isolating knife clamps and isolating blades are installed, and the power input and output lines are connected to the isolating knife clamps and the isolating blades to form a multi-circuit isolating switch combination; the servo motor is fixed to the motor fixed base plate, and is connected to the external frame through the motor fixed base plate; the servo motor is used to realize the opening and closing operations of the multi-circuit isolating switch.

[0006] Furthermore, the servo motor realizes the opening and closing of the multi-circuit isolating switch by lifting and lowering.

[0007] Furthermore, the power transmission method adopts a servo motor transmission method, and the multi-circuit isolating switch is an integral structure in which the servo motor realizes the separation and combination functions of the isolation tool clamp and the isolation blade by lifting and lowering the epoxy push rod.

[0008] Furthermore, an overall external frame is welded by square steel to support the crossbar square steel that fixes the porcelain bottle and the motor fixing base plate. The corresponding screw holes required for installation are reserved. The connection method is that the external frame is fixed to the epoxy porcelain bottle pad by screws, and the isolation tool clamp is fixed to the epoxy porcelain bottle pad by two screw holes.

[0009] Furthermore, the isolation blade is fixed on the epoxy support pad through two screw holes, and a corresponding number of epoxy porcelain bottle pads and epoxy support pads of appropriate length are installed according to the required number of multiple circuits.

[0010] Furthermore, the epoxy push rod and the epoxy support are fixed by a screw through a connecting piece, so that the epoxy push rod and the epoxy support are connected as a whole through the connecting piece.

[0011] Furthermore, the lower end of the epoxy push rod is fixed to the reserved screw hole of the servo motor lifting mechanism by screws.

[0012] Furthermore, the servo motor is fixed to the motor fixing base plate by screws, and is connected to the external frame through the screw holes of the motor fixing base plate for fixing.

[0013] Furthermore, by controlling the lifting mechanism of the servo motor, the epoxy push rod is driven to move up and down on a fixed track, thereby realizing the separation and combination operation functions of the epoxy porcelain bottle pad isolation knife clamp and the isolation blade.

[0014] Furthermore, a program for controlling the servo motor is set to realize remote and local operation, thereby realizing the opening and closing operations of multi-circuit disconnectors.

[0015] The beneficial effects of the present invention are:

[0016] The invention has low requirements on parts processing, simple structure, easy processing, convenient maintenance, is suitable for multi-circuit switch separation and combination, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a multi-circuit electric control isolating switch of the present invention.

[0018] Explanation of the reference numerals: 1-epoxy porcelain bottle, 2-epoxy porcelain bottle pad, 3-isolation knife clamp, 4-isolation blade, 5-epoxy support, 6-epoxy terminal, 7-epoxy push rod, 8-servo motor, 9-motor fixing base plate, 10-external frame. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0020] like Figure 1As shown, the multi-circuit electric control isolating switch of the present invention includes an epoxy porcelain bottle 1, an epoxy porcelain bottle pad 2, an isolating knife clamp 3, an isolating blade 4, an epoxy support 5, an epoxy terminal 6, an epoxy push rod 7, a servo motor 8, a motor fixing base plate 9, and an external frame 10. First, the overall external frame 10 is welded with square steel, screw holes for fixing the epoxy porcelain bottle 1 and the motor fixing base plate 9 are reserved, and the crossbars of the external frame 10 and the motor fixing base plate 9 are welded. The isolating knife clamp 3 is fixed to the epoxy porcelain bottle pad 2 through two screw holes, and the epoxy porcelain bottle pad 2 is fixed to one end of the epoxy porcelain bottle 1 through a screw rod. The screw hole at the other end of the epoxy porcelain bottle 1 is aligned with the screw hole of the external frame 10, and is connected and fixed by a screw rod. The isolating knife clamp 3 is fixed to the epoxy porcelain bottle pad 2 through two screw holes, and the isolating blade 4 is fixed to the epoxy support 5 through two screw holes. According to the number of multiple circuits required, the corresponding number of epoxy porcelain bottles 1, epoxy porcelain bottle pads 2, isolating knife clamps 3 and isolating blades 4 are installed. The relevant power inlet and outlet lines can be connected to the isolating knife clamp 3 and the isolating blade 4 (or can be connected through the epoxy terminal 6) to form a multi-circuit isolating switch combination. The epoxy push rod 7 and the epoxy support 5 are fixed to form a whole through the connecting piece with screws. The lower end of the epoxy push rod 7 is fixed to the lifting mechanism of the servo motor 8 through a screw. The fixing hole of the servo motor 8 is connected to the motor fixing base plate 9 by screws, and the motor fixing base plate 9 is fixed to the crossbar on the external frame 10 by screws. The power supply and controller of the servo motor 8 are installed, and the isolating knife clamp and the isolating blade power lines are connected. Set the control program of the servo motor 8 to realize the opening and closing operation of the isolating switch of multiple circuits.

[0021] The servo motor 8 can be controlled by setting the program to perform remote control and local control. First, the multi-circuit isolating switch is in the open state (the isolating knife clamp and the isolating blade are separated). The servo motor 8 receives the closing command, and the lifting mechanism of the servo motor 8 drives the epoxy push rod 7 to move upward, so that the isolating blade 4 is stuck in the isolating knife clamp 3 and reaches the limit stop to complete the closing operation; when the servo motor 8 receives the opening command, the servo motor lifting mechanism drives the epoxy push rod 7 to move downward, so that the isolating blade 4 is separated from the isolating knife clamp 3 and reaches the limit stop to complete the opening operation.

[0022] Although the above describes the illustrative specific embodiments of the present invention to facilitate those skilled in the art to understand the present invention, and it should be clear that the present invention is not limited to the scope of the specific embodiments, for those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations using the concept of the present invention are protected.

Claims

1. A multi-circuit electric control isolating switch, characterized in that: It includes an epoxy porcelain bottle, an epoxy porcelain bottle pad, an isolation knife clamp, an isolation blade, an epoxy support, an epoxy terminal, an epoxy push rod, a servo motor, a motor fixing base plate and an external frame carrying the above components, wherein the epoxy porcelain bottle pad is fixed to one end of the epoxy porcelain bottle, and the other end of the epoxy porcelain bottle is connected to the top of the external frame; the epoxy push rod is connected to the epoxy support through a connector, the epoxy push rod is connected to the lifting mechanism of the servo motor, and is connected to the external frame through the motor fixing base plate, and the switch is realized by the lifting and lowering of the servo motor; The isolation knife clamp is fixed on the epoxy porcelain bottle pad, and the isolation blade is fixed on the epoxy support. According to the required number of multiple circuits, the corresponding number of epoxy porcelain bottles, epoxy porcelain bottle pads, isolation knife clamps and isolation blades are installed, and the power input and output lines are connected to the isolation knife clamps and isolation blades to form a multi-circuit isolation switch combination; the servo motor is fixed on the motor fixing base plate and connected to the external frame through the motor fixing base plate; the servo motor is used to realize the opening and closing operations of the multi-circuit isolation switch.

2. A multi-circuit electric control isolating switch according to claim 1, characterized in that: The isolation knife clamp is fixed to the epoxy porcelain bottle pad through two screw holes, and the power supply wiring is connected through one of the screws.

3. A multi-circuit electric control isolating switch according to claim 1, characterized in that: The screw hole at one end of the epoxy porcelain bottle is aligned with the screw hole of the epoxy porcelain bottle pad and connected through a screw rod; the screw hole at the other end of the epoxy porcelain bottle is connected to the top screw hole of the external frame through a screw rod.

4. A multi-circuit electric control isolating switch according to claim 1, characterized in that: The isolation blade is fixed on the epoxy support pad through two screw holes, the epoxy blade pad is fixed with screws, the power connection is connected through one of the screws, and the epoxy push rod and the epoxy support are fixedly connected with screws through a connecting piece.

5. A multi-circuit electric control disconnector according to claim 1, characterized in that: The power wiring is connected with the isolation knife clamp and the isolation knife blade to form a multi-circuit combination switch.

6. A multi-circuit electric control disconnector according to claim 1, characterized in that: The lower end of the epoxy push rod is fixed to the reserved screw hole of the lifting mechanism of the servo motor through screws.

7. A multi-circuit electric control disconnector according to claim 1, characterized in that: The servo motor is connected to the motor fixing base plate through screws, and the motor fixing base plate is fixed to the cross piece on the external frame through screw rods.

8. The multi-circuit electric control isolating switch according to claim 1, characterized in that: The size of the external frame is adjusted according to the number of circuits, and after forming, the external frame is installed as a whole in the box.

9. A multi-circuit electric control isolating switch according to claim 1, characterized in that: Adjust the size of the isolation knife clamp and isolation blade according to the current carrying capacity of the circuit.

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