High-low voltage switch cabinet capable of automatically loading circuit breaker

Abstract

The invention discloses a high-low voltage switch cabinet capable of automatically loading a circuit breaker, and relates to the technical field of switch cabinets. The high-low voltage switch cabinet capable of automatically filling the circuit breaker comprises a switch cabinet main body, and a circuit breaker main body driven by an electric push rod is assembled in the switch cabinet main body; the circuit breaker contact is assembled on the circuit breaker main body, and a static contact is assembled in the switch cabinet main body. According to the high-low voltage switch cabinet capable of automatically filling the circuit breaker, an electric push rod and an air inlet pipe are started, so that a circuit breaker contact moves into the switch cabinet main body, airflow flows towards the circuit breaker contact, and an extrusion block, a hydraulic bin I, a stress rod I, a transmission rod I, a pipeline joint I, a stress plate, a connecting pipeline, a pipeline joint II and a spring I are matched; and the direction of the air nozzle is changed along with the moving direction of the circuit breaker contact, so that the processing time of the air flow on the circuit breaker contact is prolonged, and the processing effect of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of switchgear technology, specifically to a high- and low-voltage switchgear with automatic circuit breaker loading. Background Technology

[0002] A switchgear is an electrical device. External power lines first enter the main control switch inside the switchgear, then the branch control switches, with each branch circuit configured according to its needs. The main function of a switchgear is to open, close, control, and protect electrical equipment during the power generation, transmission, distribution, and energy conversion processes of a power system. The main components inside a switchgear include circuit breakers, disconnect switches, load switches, operating mechanisms, instrument transformers, and various protective devices.

[0003] Chinese patent CN220964196U, authorized and published on May 14, 2024, discloses a high- and low-voltage switchgear with automatic circuit breaker loading, which includes a switchgear and further includes: a partition plate disposed in the switchgear; and a support plate for supporting and installing the circuit breaker.

[0004] The aforementioned application document describes a method of cleaning foreign objects from circuit breaker contacts by blowing air through an air nozzle, thereby preventing dust, metal dust, or other foreign objects from affecting the safety of circuit breaker installation. However, when the device blows air to clean the contacts, the circuit breaker contacts are simultaneously moving. After the circuit breaker contacts have moved a certain distance, the blown air can no longer clean the contacts, thus affecting the device's processing effectiveness. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a high- and low-voltage switchgear with automatic circuit breaker loading, solving the problems mentioned in the background section. To achieve the above objectives, this invention provides the following technical solution: a high- and low-voltage switchgear with automatic circuit breaker loading, comprising: The main body of the switch cabinet contains a circuit breaker body driven by an electric push rod. Circuit breaker contacts are mounted on the circuit breaker body, stationary contacts are mounted inside the switch cabinet body, and an air inlet pipe is mounted inside the switch cabinet body. A compression block is mounted on the side of the circuit breaker body. A pipe joint is rotatably connected to the side of the air inlet pipe. A transmission component for transmission is mounted between the compression block and the pipe joint. A connecting pipe is mounted on the side of the pipe joint. A second pipe joint is rotatably connected to the side of the connecting pipe. An air jet is mounted on the side of the second pipe joint. An auxiliary air jet assembly for providing coverage is mounted inside the switch cabinet body. A collection assembly for collecting foreign objects is mounted inside the circuit breaker body.

[0006] Preferably, the transmission component includes a hydraulic chamber first assembled inside the switchgear body. One end of the hydraulic chamber first is slidably connected to a force-bearing rod first via a piston, and the other end of the hydraulic chamber first is slidably connected to a transmission rod first via a piston. A spring first is assembled on the side of the force-bearing rod first, and a force-bearing plate is fixedly connected to the side of the pipe joint first. This device design allows the direction of the air jet to change according to the direction of movement of the circuit breaker contacts, extending the processing time of the airflow on the circuit breaker contacts and thus improving the processing efficiency of the device.

[0007] Preferably, the end of the spring away from the force-bearing rod is mounted on the inner wall of the hydraulic chamber.

[0008] Preferably, the force-bearing plate is located on the side of the first transmission rod and is fixed to the first transmission rod.

[0009] Preferably, the auxiliary jet assembly includes a fixed rod mounted on the side of the connecting pipe, a hydraulic hose communicating with the side of the first hydraulic chamber, a second hydraulic chamber mounted on the side of the fixed rod, a gear rod slidably connected to the side of the second hydraulic chamber via a piston, and a gear fixedly connected to the outer side of the second pipe joint. By configuring the auxiliary jet assembly, the airflow used for cleaning can be rotated and ejected, thereby increasing the coverage area of ​​the airflow and further improving the device's ability to handle debris.

[0010] Preferably, the end of the hydraulic hose away from the hydraulic chamber is fitted to and connected to the side of the hydraulic chamber.

[0011] Preferably, the first gear is located on the side of the first rack and is in a meshing state with the first rack.

[0012] Preferably, the collection assembly includes a gear two mounted on one side of the force-bearing rod, a gear two rotatably connected inside the switch cabinet body, a bevel gear one drivingly connected to the side of the gear two, a reciprocating screw rotatably connected inside the switch cabinet body, a bevel gear two fixedly connected to the side of the reciprocating screw, a sliding plate threadedly connected to the outer side of the reciprocating screw, a cleaning brush mounted on the side of the sliding plate, and a collection chamber inside the switch cabinet body. By configuring the collection assembly, debris blown down by the airflow can be cleaned into the collection chamber, facilitating subsequent removal of the debris and making the device more convenient to use.

[0013] Preferably, the second gear is located at the top of the second rack and is in a meshing state with the second gear.

[0014] Preferably, the second bevel gear is located on the side of the first bevel gear and is in mesh with the first bevel gear.

[0015] This invention provides a high- and low-voltage switchgear with automatic circuit breaker loading. It has the following advantages: (1) The high and low voltage switchgear with automatic circuit breaker loading uses an electric push rod and an air inlet pipe to move the circuit breaker contacts into the switchgear body and allow airflow to flow into the circuit breaker contacts. In conjunction with the extrusion block, hydraulic chamber one, force rod one, transmission rod one, pipe joint one, force plate, connecting pipe, pipe joint two and spring one, the direction of the air jet changes with the direction of the circuit breaker contacts, which prolongs the processing time of the airflow on the circuit breaker contacts and thus improves the processing effect of the device.

[0016] (2) When the oil in the hydraulic chamber 1 is squeezed and moves, some of the oil flows into the hydraulic hose connected to the hydraulic chamber 1. With the help of the fixed rod, hydraulic chamber 2, rack 1 and gear 1, the jet nozzle rotates while the connecting pipe rotates, and the airflow used for cleaning is sprayed out, thereby improving the coverage of the airflow and further improving the device's treatment effect on debris.

[0017] (3) When the force rod 1 moves, the high and low voltage switch cabinet automatically loads the circuit breaker. When the force rod 1 moves, it can drive the toothed rod 2 mounted on its side to move. In conjunction with the gear 2, bevel gear 1, reciprocating screw, bevel gear 2, sliding plate and cleaning brush, the debris blown down by the airflow can be cleaned into the collection chamber, making it easier to remove the debris later, making the device more convenient to use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention; Figure 3 This is a three-dimensional structural diagram of some parts of the present invention; Figure 4 This is a three-dimensional structural diagram of some parts of the present invention; Figure 5 This is a three-dimensional structural diagram of the auxiliary jet assembly of the present invention; Figure 6 This is a three-dimensional structural diagram of some parts of the auxiliary jet assembly of the present invention; Figure 7 This is a three-dimensional structural diagram of the collection component of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle; Figure 9 This is a three-dimensional structural diagram of the overall appearance of the present invention.

[0019] In the picture: 100. Switchgear body; 200. Circuit breaker body; 300. Circuit breaker contacts; 400. Stationary contact; 500. Air inlet pipe; 601. Extrusion block; 602. Hydraulic chamber one; 603. Force-bearing rod one; 604. Transmission rod one; 605. Pipe joint one; 606. Force-bearing plate; 607. Connecting pipe; 608. Pipe joint two; 609. Air nozzle; 610. Spring one; 700. Auxiliary jet assembly; 701. Fixed rod; 702. Hydraulic hose; 703. Hydraulic chamber two; 704. Rack and pinion one; 705. Gear one; 800. Collection component; 801. Second rack; 802. Second gear; 803. First bevel gear; 804. Reciprocating lead screw; 805. Second bevel gear; 806. Sliding plate; 807. Cleaning brush; 808. Collection chamber. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1, please refer to Figures 1-4 A high- and low-voltage switchgear with automatic circuit breaker loading, comprising: The switch cabinet body 100 is equipped with a circuit breaker body 200 driven by an electric push rod inside the switch cabinet body 100. Circuit breaker contact 300 is mounted on circuit breaker body 200. The switch cabinet body 100 is equipped with stationary contact 400 and air inlet pipe 500. A compression block 601 is mounted on the side of the circuit breaker body 200, and a pipe joint 605 is rotatably connected to the side of the air inlet pipe 500. A transmission component for transmission is mounted between the compression block 601 and the pipe joint 605. The transmission component includes a hydraulic chamber 602 mounted inside the switch cabinet body 100. One end of the hydraulic chamber 602 is slidably connected to a force rod 603 via a piston. The electric push rod and air inlet pipe 500 are activated. The electric push rod drives the circuit breaker contact 300 on the circuit breaker body 200 to move into the switch cabinet body 100. The airflow that cleans the debris passes through pipe joint 605, connecting pipe 607 and pipe joint 608, and is ejected from the jet nozzle 609. The airflow moves to the circuit breaker contact 300 for cleaning. As the circuit breaker body 200 continues to move, the compression block 601 mounted on the side of the circuit breaker body 200 moves to the force rod 603 and continues to move. The force rod 603 moves due to the compression of the compression block 601. In conjunction with the hydraulic chamber 602 which is connected to the force rod 603 by a piston, the oil originally stored in the hydraulic chamber 602 is squeezed by the force rod 603 and flows.

[0022] The other end of the hydraulic chamber 602 is slidably connected to a transmission rod 604 via a piston. A spring 610 is mounted on the side of the force-bearing rod 603, with the end of the spring 610 away from the force-bearing rod 603 mounted on the inner wall of the hydraulic chamber 602. When the oil in the hydraulic chamber 602 flows towards the end near the transmission rod 604, it drives the transmission rod 604, which is slidably connected to the hydraulic chamber 602 via the piston, to move, and the transmission rod 604 moves out of the hydraulic chamber 602.

[0023] A force-bearing plate 606 is fixedly connected to the side of pipe joint 605. The force-bearing plate 606 is located on the side of transmission rod 604 and is fixed to transmission rod 604. A connecting pipe 607 is mounted on the side of pipe joint 605, and a second pipe joint 608 is rotatably connected to the side of connecting pipe 607. An air jet port 609 is mounted on the side of pipe joint 608. When transmission rod 604 moves out of hydraulic chamber 602, it can compress the force-bearing plate 606, causing the force-bearing plate 606 to move. Figure 4 As shown, the force plate 606 drives the pipe joint 605 mounted on its side to rotate counterclockwise at a certain angle, causing the connecting pipe 607, the second pipe joint 608 and the jet nozzle 609 mounted on the pipe joint 605 to rotate together. This causes the direction of the jet nozzle 609 to change with the direction of movement of the circuit breaker contact 300, extending the processing time of the airflow on the circuit breaker contact 300, thereby improving the processing effect of the device.

[0024] When the circuit breaker body 200 moves the circuit breaker contact 300 outward, the force rod 603 loses the restriction of the pressing block 601 and can be reset under the action of the spring 610. Similarly, the jet nozzle 609 is reset.

[0025] In use, the electric push rod and air inlet pipe 500 are activated. The electric push rod drives the circuit breaker contacts 300 on the circuit breaker body 200 to move into the switch cabinet body 100. The airflow for cleaning debris passes through pipe joint 605, connecting pipe 607 and pipe joint 608, and is ejected from the jet nozzle 609. The airflow moves to the circuit breaker contacts 300 for cleaning. As the circuit breaker body 200 continues to move, the compression block 601 mounted on the side of the circuit breaker body 200 moves to the force-bearing rod 603 and continues to move, subjecting the force-bearing rod 603 to pressure. The compression of the extrusion block 601 causes movement, which, in conjunction with the hydraulic chamber 602 connected to the force rod 603 via a piston, causes the oil originally stored in the hydraulic chamber 602 to flow due to the compression of the force rod 603. The oil then flows towards the end near the transmission rod 604, driving the transmission rod 604, which is also connected to the hydraulic chamber 602 via a piston, to move. The transmission rod 604 moves out of the hydraulic chamber 602, thereby compressing the force plate 606 and causing the force plate 606 to move. Figure 4 As shown, the force plate 606 drives the pipe joint 605 mounted on its side to rotate counterclockwise at a certain angle, so that the connecting pipe 607, the second pipe joint 608 and the jet nozzle 609 mounted on the pipe joint 605 rotate together, so that the direction of the jet nozzle 609 changes with the direction of movement of the circuit breaker contact 300. When the circuit breaker body 200 moves the circuit breaker contact 300 outward, the force rod 603 loses the restriction of the pressing block 601 and can be reset under the action of the spring 610. Similarly, the jet nozzle 609 is reset.

[0026] Example 2, please refer to Figures 1-6 Based on Embodiment 1, the switch cabinet body 100 is internally equipped with an auxiliary jet assembly 700 for providing coverage. The auxiliary jet assembly 700 includes a fixing rod 701 mounted on the side of the connecting pipe 607. A hydraulic hose 702 communicating with the side of hydraulic chamber 1 602 is mounted on the side of hydraulic chamber 1 602. The end of the hydraulic hose 702 away from hydraulic chamber 1 602 is mounted on the side of hydraulic chamber 1 602 and communicates with it. A hydraulic chamber 2 703 is mounted on the side of the fixing rod 701. When the oil in hydraulic chamber 1 602 is squeezed and moves, some of the oil flows into the hydraulic hose 702 communicating with hydraulic chamber 1 602, causing some of the oil originally present in hydraulic hose 702 to be squeezed and flow into the hydraulic chamber 2 703 communicating with it.

[0027] The side of the hydraulic chamber 2 703 is slidably connected to the rack 1 704 via a piston. The outside of the pipe joint 2 608 is fixedly connected to the gear 1 705. The gear 1 705 is located on the side of the rack 1 704 and is in a meshing state with the rack 1 704. When oil flows into hydraulic chamber 2 703, the oil in hydraulic chamber 2 703 is squeezed and flows towards the side closer to rack 1 704, causing rack 1 704, which is slidably connected to hydraulic chamber 2 703 via a piston, to move. Rack 1 704 moves out of hydraulic chamber 2 703, and the moving rack 1 704 drives the gear 1 705 meshing with it to rotate, so that gear 1 705 drives the pipe joint 2 608 fixedly connected to it to rotate. Pipe joint 2 608 drives the air jet 609 mounted on its side to rotate. At this time, air jet 609 rotates on its own axis while the connecting pipe 607 rotates, rotating and spraying out the airflow used for cleaning, thereby increasing the coverage of the airflow and further improving the device's effect on handling debris.

[0028] In use, based on Embodiment 1, when the oil in hydraulic chamber 1 602 is squeezed and moves, some of the oil flows into the hydraulic hose 702 connected to hydraulic chamber 1 602. This causes some of the oil originally in hydraulic hose 702 to be squeezed and flow into hydraulic chamber 2 703 connected to it. The oil in hydraulic chamber 2 703 is squeezed and flows towards the side closer to rack 1 704, causing rack 1 704, which is connected to hydraulic chamber 2 703 by a piston sliding connection, to move. Rack 1 704 moves out of hydraulic chamber 2 703. The moving rack 1 704 drives the gear 1 705 meshing with it to rotate, causing gear 1 705 to drive the pipe joint 2 608 fixedly connected to it to rotate. Pipe joint 2 608 drives the jet nozzle 609 mounted on its side to rotate. At this time, jet nozzle 609 rotates on its own axis while rotating with the connecting pipe 607, spraying out the airflow used for cleaning.

[0029] Example 3, please refer to Figures 1-8 Based on Embodiments 1 and 2, the circuit breaker body 200 is internally equipped with a collection assembly 800 for collecting foreign objects. The collection assembly 800 includes a gear 801 mounted on the side of the force-bearing rod 603, and a gear 802 rotatably connected inside the switch cabinet body 100. The gear 802 is located at the top of the gear 801 and is meshed with it. A bevel gear 803 is driven to the side of the gear 802. When the force-bearing rod 603 moves, it drives the gear 801 mounted on its side to move. The moving gear 801 drives the meshing gear 802 to rotate, which in turn drives the bevel gear 803 to rotate.

[0030] A reciprocating screw 804 is rotatably connected inside the switch cabinet body 100. A second bevel gear 805 is fixedly connected to the side of the reciprocating screw 804. The second bevel gear 805 is located on the side of the first bevel gear 803 and is meshed with the first bevel gear 803. A sliding plate 806 is threadedly connected to the outside of the reciprocating screw 804. A cleaning brush 807 is mounted on the side of the sliding plate 806. A collection bin 808 is mounted inside the switch cabinet body 100. When bevel gear 1 803 rotates, it drives bevel gear 2 805, which meshes with it, to rotate. Bevel gear 2 805 drives reciprocating screw 804, which is fixedly connected to it, to rotate. Meanwhile, sliding plate 806, which is threaded onto the outside of reciprocating screw 804, is slidably connected to switch cabinet body 100, so that sliding plate 806 is restricted by switch cabinet body 100. Thus, during the rotation of reciprocating screw 804, the two sliding plates 806 move towards each other, respectively driving the two cleaning brushes 807 to move towards each other, cleaning the debris blown down by the airflow into the collection chamber 808, making it easier to remove the debris later, and making the device more convenient to use.

[0031] In use, based on Embodiment 1 and Embodiment 2, when the force-bearing rod 603 moves, it can drive the toothed rod 801 mounted on its side to move. The moving toothed rod 801 drives the gear 802 meshing with it to rotate, which in turn drives the bevel gear 803 connected to it to rotate. The bevel gear 803 drives the bevel gear 805 meshing with it to rotate, and the bevel gear 805 drives the reciprocating screw 804 fixedly connected to it to rotate. The sliding plate 806, which is threaded onto the outside of the reciprocating screw 804, is simultaneously slidably connected to the switch cabinet body 100, so that the sliding plate 806 is restricted by the switch cabinet body 100. Thus, during the rotation of the reciprocating screw 804, the two sliding plates 806 move towards each other, which respectively drive the two cleaning brushes 807 to move towards each other, cleaning the debris blown down by the airflow into the collection chamber 808. Similarly, when the force-bearing rod 603 is reset, the two sliding plates 806 move in opposite directions to complete the reset.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-low voltage switchgear with automatic filling of circuit breakers, characterized in that, Include: Switch cabinet body, the inside of the switch cabinet body is equipped with a circuit breaker body driven by an electric push rod; Circuit breaker contact, the circuit breaker contact is assembled on the circuit breaker body, the inside of the switch cabinet body is equipped with a static contact, the inside of the switch cabinet body is equipped with an air inlet pipe; The side of the circuit breaker body is equipped with an extrusion block, the side of the air inlet pipe is rotatably connected with a pipe joint one, a transmission member for transmission is assembled between the extrusion block and the pipe joint one, the side of the pipe joint one is equipped with a connecting pipe, the side of the connecting pipe is rotatably connected with a pipe joint two, the side of the pipe joint two is equipped with a gas injection port, the inside of the switch cabinet body is equipped with an auxiliary gas injection assembly for providing a coverage area, the inside of the circuit breaker body is equipped with a collection assembly for receiving foreign matter.

2. The high-low voltage switchgear with automatic filling of the circuit breaker according to claim 1, characterized in that: The transmission member includes a hydraulic chamber one assembled in the inside of the switch cabinet body, one end of the hydraulic chamber one is slidably connected with a force rod one by setting a piston, the other end of the hydraulic chamber one is slidably connected with a transmission rod one by setting a piston, the side of the force rod one is equipped with a spring one, the side of the pipe joint one is fixedly connected with a force plate.

3. A high-low voltage switchgear with automatic filling of the circuit breaker according to claim 2, characterized in that: The end of the spring one away from the force rod one is assembled on the inner wall of the hydraulic chamber one.

4. The high-low voltage switchgear with automatic filling of the circuit breaker according to claim 2, characterized in that: The force plate is located at the side of the transmission rod one and is in a fixed state with the transmission rod one.

5. The automatic filling high-low voltage switchgear of claim 2, wherein: The auxiliary gas injection assembly includes a fixed rod equipped on the side of the connecting pipe, the side of the hydraulic chamber one is equipped with a hydraulic hose in communication therewith, the side of the fixed rod is equipped with a hydraulic chamber two, the side of the hydraulic chamber two is slidably connected with a toothed rod one by setting a piston, the outside of the pipe joint two is fixedly connected with a gear one.

6. A high-low voltage switchgear with automatic filling of a circuit breaker according to claim 5, characterized in that: The end of the hydraulic hose away from the hydraulic chamber one is assembled at the side of the hydraulic chamber one and is in communication therewith.

7. The high-low voltage switchgear with automatic filling of the circuit breaker according to claim 5, characterized in that: The gear one is located at the side of the toothed rod one and is in engagement with the toothed rod one.

8. A high-low voltage switchgear with automatic filling of a circuit breaker according to claim 5, characterized in that: The collection assembly includes a toothed rod two equipped on the side of the force rod one, a gear two is rotatably connected in the inside of the switch cabinet body, the gear two is drivingly connected with a bevel gear one, a reciprocating screw rod is rotatably connected in the inside of the switch cabinet body, the reciprocating screw rod is fixedly connected with a bevel gear two on the side, the outside of the reciprocating screw rod is threadedly connected with a sliding plate by setting a thread, the side of the sliding plate is equipped with a cleaning brush, a collection chamber is assembled in the inside of the switch cabinet body.

9. A high-low voltage switchgear with automatic filling of a circuit breaker according to claim 8, characterized in that: The gear two is located at the top of the toothed rod two and is in engagement with the gear two.

10. The high-low voltage switchgear with automatic filling of the circuit breaker according to claim 8, characterized in that: The bevel gear two is located at the side of the bevel gear one and is in engagement with the bevel gear one.

Images