A high-voltage switch cabinet bus side baffle locking device

Abstract

The application provides a high-voltage switch cabinet bus side baffle locking device, and belongs to the technical field of switch cabinets. The high-voltage switch cabinet bus side baffle locking device comprises a high-voltage switch cabinet and a door plate rotatably connected to one side of the high-voltage switch cabinet. A first fixed plate is fixedly connected in the high-voltage switch cabinet. A limiting rod is fixedly connected in the high-voltage switch cabinet. A load side baffle and a bus side baffle are respectively slidably connected to the outer ring of the limiting rod. An elastic assembly is arranged in the high-voltage switch cabinet. A locking baffle is fixedly connected to one side of the elastic assembly. The locking baffle is slidably connected with the first fixed plate. The locking baffle is attached to the top of the bus side baffle. A positioning assembly is fixedly connected in the high-voltage switch cabinet. In the application, the high-voltage switch cabinet bus side baffle locking device conveniently blocks the upward moving path of the bus side baffle, thereby playing a locking role and improving safety.

Description

Technical Field

[0001] This application relates to the field of switchgear, and more specifically, to a busbar side baffle interlocking device for high-voltage switchgear. Background Technology

[0002] High-voltage switchgear is a core set of power distribution equipment used in power systems to receive, distribute, protect, control, and measure high-voltage circuits (typically those with rated voltages of 3.6kV to 40.5kV and above). It integrates primary equipment such as high-voltage circuit breakers, disconnectors, load switches, grounding switches, current / voltage transformers, surge arresters, busbars, and connecting conductors, as well as secondary equipment such as relay protection devices, measuring instruments, control elements, and signal indicators, all within a protective all-metal or insulated enclosure made of profiles and steel plates, according to specific main wiring scheme requirements. Currently, high-voltage switchgear is equipped with busbar-side baffles and load-side baffles to prevent electric shock. When the circuit breaker trolley is moved to the working position, the connecting rods on both sides can be pushed to move the busbar-side baffle upwards and the load-side baffle downwards, exposing the stationary contacts. Ultimately, the moving contacts of the circuit breaker connect with the stationary contacts.

[0003] However, in recent years, there have been several electric shock accidents during the maintenance of high-voltage switchgear. This is because after the circuit breaker is moved out of the compartment, the busbar side baffle of the switchgear can be moved easily. If the busbar side is energized, accidental human intervention can easily cause electric shock, thus reducing safety. Utility Model Content

[0004] To overcome the above deficiencies, this application provides a busbar side baffle interlocking device for high-voltage switchgear, which aims to improve the safety of switchgear busbar side baffles that can be easily moved after the circuit breaker is removed from the compartment. If the busbar side is energized, accidental human intervention could easily cause electric shock.

[0005] This application provides a busbar side baffle locking device for a high-voltage switchgear, including a high-voltage switchgear and a door panel rotatably connected to one side of the high-voltage switchgear. A first fixed plate is fixedly connected inside the high-voltage switchgear, and a limit rod is fixedly connected inside the high-voltage switchgear. A load-side baffle and a busbar side baffle are slidably connected to the outer ring of the limit rod, respectively. An elastic component is provided inside the high-voltage switchgear, and a locking baffle is fixedly connected to one side of the elastic component. The locking baffle is slidably connected to the first fixed plate and abuts against the top of the busbar side baffle. A positioning component is fixedly connected inside the high-voltage switchgear.

[0006] In one specific implementation, the elastic component includes two slide rods fixed to one side of the locking baffle. A movable plate is fixedly connected to the outer ring of the slide rods. A second fixed plate is fixedly connected to the inner wall of the high-voltage switchgear. The slide rods are slidably connected to the second fixed plate. Two sliding plates are fixedly connected to one side of the movable plate. Both sliding plates are slidably connected to the second fixed plate. The movable plate and the second fixed plate are connected by a first spring.

[0007] In the above implementation process, by setting up the slide bar, the moving plate, the sliding plate, the first spring and the second fixed plate, it is convenient to push the slide bar to compress the first spring when the door is closed, so that the locking baffle extends into the cabinet. At this time, the locking baffle moves inward to make way for the bus side baffle to move, without affecting the circuit breaker trolley to the working position.

[0008] In one specific implementation, the positioning component includes a first roller rotatably connected to the movable plate, a lifting plate slidably connected inside the high-voltage switchgear, two inclined platforms fixedly connected to one side of the lifting plate, the first roller engaging with the inclined platforms, two positioning rods fixedly connected to one side of the lifting plate, a support plate fixedly connected inside the high-voltage switchgear, both positioning rods slidably connected to the support plate, and the support plate and the lifting plate connected by a second spring.

[0009] In the above implementation process, the setting of the first roller, inclined platform, lifting plate, positioning rod, second spring and support plate can facilitate the positioning of the locking baffle in the locked state, and prevent the user from accidentally touching the locking baffle when the door is opened, so that the locking baffle releases the restriction on the busbar side baffle, thereby improving safety. The elastic force of the second spring is much smaller than that of the first spring.

[0010] In one specific implementation, a second roller is rotatably connected to one end of the slide bar.

[0011] In the above implementation process, by rotating and connecting a second roller at one end of the slide bar, the connection between the door panel and the slide bar can be made smoother, thereby reducing wear.

[0012] In one specific implementation, a pressure rod is fixedly connected to one side of the lifting plate.

[0013] In the above implementation process, by fixing a pressure rod to one side of the lifting plate, the user can easily push the lifting plate to move by the pressure rod, saving time and effort.

[0014] In one specific implementation, the first fixing plate has two through-holes.

[0015] In the above implementation process, by opening two connecting ports through the first fixed plate, it is possible to facilitate the connection of external circuit breakers.

[0016] In one specific implementation, the first fixing plate has a through groove, and the locking baffle is slidably connected to the groove.

[0017] In the above implementation process, the movement of the locking baffle can be conveniently limited by the sliding connection between the locking baffle and the slide groove.

[0018] Compared with the prior art, the beneficial effects of this application are as follows: When the door panel is closed, the positioning component is pressed down to release the restriction on the elastic component. The door panel pushes the elastic component to compress, causing the locking baffle to extend into the cabinet. At this time, the locking baffle moves inward to make way for the movement path of the busbar side baffle, without affecting the circuit breaker trolley to swing to the working position. When the door panel is opened, the elastic component drives the locking baffle to reset, so that the bottom of the locking baffle fits against the top of the busbar side baffle, blocking the upward movement path of the busbar side baffle, thereby playing a locking role and improving safety. The positioning component facilitates the positioning of the locking baffle in the locked state, preventing the user from accidentally touching the locking baffle when the door panel is opened, so that the locking baffle releases the restriction on the busbar side baffle, thereby improving safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a side view of a high-voltage switchgear busbar side baffle interlocking device provided in the embodiments of this application; Figure 2 A schematic diagram of a busbar side baffle interlocking device for a high-voltage switchgear provided for the embodiments of this application; Figure 3 A cross-sectional structural diagram of a busbar side baffle interlocking device for a high-voltage switchgear provided for the embodiments of this application; Figure 4 for Figure 3 Enlarged view of point A; Figure 5 A side sectional view of a high-voltage switchgear busbar side baffle interlocking device provided for the embodiments of this application; Figure 6 for Figure 5 Enlarged view of point B; Figure 7This is a top view of a high-voltage switchgear busbar side baffle interlocking device provided for an embodiment of this application.

[0021] In the diagram: 1-High-voltage switchgear; 2-Door panel; 3-First fixed plate; 4-Limit rod; 5-Load side baffle; 6-Busbar side baffle; 7-Elastic component; 71-Slide rod; 72-Moving plate; 73-Slide plate; 74-First spring; 75-Second fixed plate; 8-Locking baffle; 9-Positioning component; 91-First roller; 92-Slope; 93-Lifting plate; 94-Positioning rod; 95-Second spring; 96-Support plate; 10-Second roller; 20-Pressure rod. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0023] Please see Figure 1 This application provides a busbar side baffle locking device for a high-voltage switchgear, including a high-voltage switchgear 1 and a door panel 2 rotatably connected to one side of the high-voltage switchgear 1. A first fixing plate 3 is fixedly connected inside the high-voltage switchgear 1. A limit rod 4 is fixedly connected inside the high-voltage switchgear 1. A load-side baffle 5 and a busbar side baffle 6 are slidably connected to the outer ring of the limit rod 4. An elastic component 7 is provided inside the high-voltage switchgear 1. A locking baffle 8 is fixedly connected to one side of the elastic component 7. The locking baffle 8 is slidably connected to the first fixing plate 3. The locking baffle 8 is abutted against the top of the busbar side baffle 6. A positioning component 9 is fixedly connected inside the high-voltage switchgear 1.

[0024] Please see Figures 1-7 The elastic component 7 includes two sliding rods 71 ​​fixed to one side of the locking baffle 8. A movable plate 72 is fixedly connected to the outer ring of the sliding rods 71. A second fixed plate 75 is fixedly connected to the inner wall of the high-voltage switchgear 1. The sliding rods 71 ​​are slidably connected to the second fixed plate 75. Two sliding plates 73 are fixedly connected to one side of the movable plate 72. Both sliding plates 73 are slidably connected to the second fixed plate 75. The movable plate 72 and the second fixed plate 75 are connected by a first spring 74. The arrangement of the sliding rods 71, movable plate 72, sliding plates 73, first spring 74 and second fixed plate 75 allows the locking baffle 8 to extend into the cabinet when the door panel 2 is closed, by pushing the sliding rods 71 ​​to compress the first spring 74. At this time, the locking baffle 8 moves inward to make way for the movement path of the busbar side baffle 6, without affecting the circuit breaker trolley to the working position.

[0025] In a specific configuration, a second roller 10 is rotatably connected to one end of the slide rod 71. By rotatably connecting the second roller 10 to one end of the slide rod 71, the connection between the door panel 2 and the slide rod 71 can be made smoother, thereby reducing wear.

[0026] In the specific configuration, the first fixing plate 3 has two through-holes, which facilitates the connection of external circuit breakers.

[0027] In a specific configuration, the first fixed plate 3 is provided with a through groove, and the locking baffle 8 is slidably connected to the groove. The slidable connection between the locking baffle 8 and the groove allows for convenient limitation of the movement of the locking baffle 8.

[0028] Please see Figures 1-6 The positioning component 9 includes a first roller 91 rotatably connected to the movable plate 72, a lifting plate 93 slidably connected inside the high-voltage switchgear 1, two inclined platforms 92 fixedly connected to one side of the lifting plate 93, the first roller 91 fitting against the inclined platforms 92, two positioning rods 94 fixedly connected to one side of the lifting plate 93, a support plate 96 fixedly connected inside the high-voltage switchgear 1, both positioning rods 94 slidably connected to the support plate 96, and the support plate 96 and the lifting plate 93 connected by a second spring 95. The arrangement of the first roller 91, inclined platforms 92, lifting plate 93, positioning rods 94, second spring 95, and support plate 96 facilitates the positioning of the locking baffle 8 in the locked state, preventing accidental contact with the locking baffle 8 when the door 2 is opened, thus releasing the locking baffle 8 from limiting the busbar side baffle 6 and improving safety. The elastic force of the second spring 95 is much smaller than that of the first spring 74.

[0029] In the specific setup, a pressure rod 20 is fixedly connected to one side of the lifting plate 93. By fixing the pressure rod 20 to one side of the lifting plate 93, the user can easily push the lifting plate 93 to move by the pressure rod 20, saving time and effort.

[0030] The working principle of this high-voltage switchgear busbar side baffle locking device is as follows: When using the high-voltage switchgear busbar side baffle locking device, the operator presses down the pressure rod 20, causing the lifting plate 93 and the inclined platform 92 to move downward, releasing the limit on the first roller 91. At the same time, the second spring 95 is compressed, and the door panel 2 is closed. During the closing process, the door panel 2 pushes the second roller 10 to move into the cabinet, causing the slide rod 71 to drive the moving plate 72 to squeeze the first spring 74. After the first roller 91 passes the inclined platform 92, the user releases the pressure rod 20, and the second spring 95 drives the inclined platform 92 and the lifting plate 93 to reset. The locking baffle 8 continues to move into the cabinet along the slide groove of the first fixed plate 3. The sliding mechanism allows the busbar side baffle 6 to move, ensuring that the circuit breaker trolley can smoothly move to the working position. When the door is opened, the first spring 74 pushes the moving plate 72 to reset. At the same time, since the elastic force of the second spring 95 is much smaller than that of the first spring 74, the first roller 91 presses down on the inclined platform 92 through the inclined surface until it passes over the inclined platform 92. This facilitates the positioning of the locking baffle 8 in the locked state, preventing the user from accidentally touching the locking baffle 8 when the door panel 2 is opened. This releases the locking baffle 8 from limiting the busbar side baffle 6, thereby improving safety. At this time, the locking baffle 8 extends again and fits against the top of the busbar side baffle 6 to achieve locking.

[0031] It should be noted that the specific models and specifications of the high-voltage switchgear 1, load-side baffle 5, and busbar-side baffle 6 need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0032] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A busbar side baffle locking device for a high-voltage switchgear, comprising a high-voltage switchgear (1) and a door panel (2) rotatably connected to one side of the high-voltage switchgear (1), characterized in that, The high-voltage switchgear (1) is fixedly connected to a first fixing plate (3), and a limit rod (4) is fixedly connected to the high-voltage switchgear (1). The outer ring of the limit rod (4) is slidably connected to a load-side baffle (5) and a busbar-side baffle (6). The high-voltage switchgear (1) is provided with an elastic component (7). A locking baffle (8) is fixedly connected to one side of the elastic component (7). The locking baffle (8) is slidably connected to the first fixing plate (3). The locking baffle (8) is attached to the top of the busbar-side baffle (6). The high-voltage switchgear (1) is fixedly connected to a positioning component (9).

2. The high-voltage switchgear busbar side baffle interlocking device according to claim 1, characterized in that, The elastic component (7) includes two slide rods (71) fixed to one side of the locking baffle (8). A movable plate (72) is fixedly connected to the outer ring of the slide rod (71). A second fixed plate (75) is fixedly connected to the inner wall of the high voltage switch cabinet (1). The slide rod (71) is slidably connected to the second fixed plate (75). Two sliding plates (73) are fixedly connected to one side of the movable plate (72). Both sliding plates (73) are slidably connected to the second fixed plate (75). The movable plate (72) and the second fixed plate (75) are connected by a first spring (74).

3. The high-voltage switchgear busbar side baffle interlocking device according to claim 2, characterized in that, The positioning component (9) includes a first roller (91) rotatably connected to the moving plate (72), a lifting plate (93) slidably connected inside the high voltage switch cabinet (1), two inclined platforms (92) fixedly connected to one side of the lifting plate (93), the first roller (91) fitting against the inclined platform (92), two positioning rods (94) fixedly connected to one side of the lifting plate (93), a support plate (96) fixedly connected inside the high voltage switch cabinet (1), both positioning rods (94) slidably connected to the support plate (96), and the support plate (96) and the lifting plate (93) connected by a second spring (95).

4. A high-voltage switchgear busbar side baffle interlocking device according to claim 2, characterized in that, One end of the slide bar (71) is rotatably connected to a second roller (10).

5. A high-voltage switchgear busbar side baffle interlocking device according to claim 3, characterized in that, A pressure rod (20) is fixedly connected to one side of the lifting plate (93).

6. A high-voltage switchgear busbar side baffle interlocking device according to claim 1, characterized in that, The first fixing plate (3) has two through-holes.

7. A high-voltage switchgear busbar side baffle interlocking device according to claim 1, characterized in that, The first fixing plate (3) has a through groove, and the locking baffle (8) is slidably connected to the groove.

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