Five-prevention interlocking device for high-voltage switchgear

Abstract

The utility model discloses a five-prevention interlocking device for high-voltage switch equipment, which comprises an equipment frame, a main shaft body mounted at the upper end of the equipment frame, an isolation shaft body mounted at the lower end of the equipment frame, a main shaft limiting disc fixedly connected to one end of the main shaft body, and an isolation shaft limiting disc fixedly connected to one end of the isolation shaft body. The beneficial effects of the utility model are that through the arrangement of the first interlocking clamping plate and the second interlocking clamping plate, the rotation angles of the main shaft limiting disc and the main shaft body are limited by the first interlocking clamping plate through limiting and fixing the main shaft limiting side groove, and through the arrangement of the second interlocking clamping plate and the isolation shaft limiting side groove, the rotation angles of the main shaft limiting disc and the main shaft body are limited. The second interlocking clamping plate limits the rotation angles of the isolation shaft limiting disc and the isolation shaft body through the isolation shaft limiting side groove, and the isolation switch is switched on and switched off.

Description

Technical Field

[0001] The utility model relates to the technical field of five-protection interlocking, in particular to a five-protection interlocking device for high-voltage switch equipment. Background Art

[0002] The vacuum circuit breaker is named because its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; it has the advantages of small size, light weight, suitable for frequent operation, and no need for maintenance after arc extinguishing. It is widely used in distribution networks. The circuit breaker can be configured in a central cabinet, a double-layer cabinet and a fixed cabinet to control and protect high-voltage electrical equipment. However, the existing vacuum circuit breakers must require a five-protection interlocking device to prevent the disconnector from opening and closing under load. However, there must be a gap between the rotation of each shaft of the five-protection interlocking device, and the cumulative error is large. The isolation shaft is prone to structural shaking, and the load opening and closing isolation operation is not stable enough. Utility Model Content

[0003] The purpose of the utility model is to provide a five-protection interlocking device for high-voltage switchgear to solve the problem that the existing vacuum circuit breakers mentioned in the above background technology must require a five-protection interlocking device to prevent the disconnector from opening and closing under load, but the rotation of each shaft of the five-protection interlocking device must have a gap, the cumulative error is large, the isolation shaft is prone to structural shaking, and the load opening and closing isolation operation is not stable enough.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a five-protection interlocking device for high-voltage switchgear, comprising an equipment frame, a main shaft body is installed on the upper end of the equipment frame, an isolation shaft body is installed on the lower end of the equipment frame, one end of the main shaft body is fixedly connected to a main shaft limiting disk, one end of the isolation shaft body is fixedly connected to an isolation shaft limiting disk, two main shaft limiting side grooves are provided on the outer side of the main shaft limiting disk, two isolation shaft limiting side grooves are provided on the outer side of the isolation shaft limiting disk, a fixed side block is fixedly connected to one side of the equipment frame, and the fixed side block The inner sliding connection of the limit slider is connected, one side of the limit slider is fixedly connected with a No. 1 interlocking clamping plate that cooperates with the limiting side groove of the main spindle, the inner sliding connection of the No. 1 interlocking clamping plate is connected with a No. 2 interlocking clamping plate that cooperates with the limiting side groove of the isolation shaft, the inner sliding connection of the No. 1 interlocking clamping plate is connected with a moving slide plate, the bottom of the moving slide plate is fixedly connected with a connecting slide plate, the connecting slide plate is slidingly connected with the No. 1 interlocking clamping plate, the bottom of the connecting slide plate is fixedly connected with the No. 2 interlocking clamping plate, the top of the moving slide plate is fixedly connected with a spring, and one end of the spring is fixedly connected with the No. 1 interlocking clamping plate.

[0005] As a preferred solution of the utility model: an adjusting bevel groove is opened inside the movable slide plate, a sliding pressure plate is slidably connected inside the No. 1 interlocking card, an adjusting pressure rod cooperating with the adjusting bevel groove is fixedly connected to one side of the sliding pressure plate, and the adjusting pressure rod is slidably connected to the adjusting bevel groove.

[0006] As a preferred solution of the utility model: the outer side of the sliding pressure plate is slidably connected with a connecting side block, the connecting side block is fixedly connected to the No. 1 interlocking card plate, one side of the sliding pressure plate is fixedly connected with an externally threaded sliding rod, and the externally threaded sliding rod is slidably connected to the connecting side block.

[0007] As a preferred solution of the utility model: the outer side of the external threaded sliding rod is threadedly connected with an internal threaded limiting block.

[0008] As a preferred solution of the utility model: the internal thread of the limit slider is connected with an adjusting screw rod, the adjusting screw rod is rotatably connected to the fixed side block, the bottom of the fixed side block is rotatably connected with a rotating screw block, and one end of the adjusting screw rod is fixedly connected to the rotating screw block.

[0009] As a preferred solution of the utility model: a No. 1 limiting groove is provided on the outer side of the spindle limiting plate, and a No. 1 limiting column matched with the No. 1 limiting groove is fixedly connected to one side of the equipment frame.

[0010] As a preferred solution of the utility model: a No. 2 limiting groove is opened on the outer side of the isolation shaft limit plate, and a No. 2 limiting column matching the No. 2 limiting groove is fixedly connected to one side of the equipment frame.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model sets a No. 1 interlocking card plate and a No. 2 interlocking card plate, so that the No. 1 interlocking card plate can limit the rotation angle of the main shaft limit plate and the main shaft body by limiting the side grooves between the main shaft limit plates; sets a No. 2 interlocking card plate and an isolation shaft limit side groove, so that the No. 2 interlocking card plate can limit the rotation angle of the isolation shaft limit plate and the isolation shaft body through the isolation shaft limit side grooves to open and close the isolation switch; sets a No. 1 limit column and a No. 2 limit column, so that when the main shaft limit plate rotates, the limit between the No. 1 limit groove and the No. 1 limit column can limit the rotation angle; when the isolation shaft limit plate rotates, the No. 2 limit groove is driven to rotate, and the limit between the No. 2 limit groove and the No. 2 limit column limits the rotation angle of the isolation shaft limit plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0014] Figure 3 It is a schematic diagram of the external structure of the utility model.

[0015] In the figure: 1. Equipment frame; 2. Spindle body; 3. Isolation shaft body; 4. Spindle limit plate; 5. Main spindle limit side groove; 6. No. 1 limit groove; 7. No. 1 limit column; 8. Isolation shaft limit plate; 9. Isolation shaft limit side groove; 10. No. 2 limit groove; 11. No. 2 limit column; 12. No. 1 interlocking card plate; 13. Fixed side block; 14. Limiting slider; 15. Adjusting screw rod; 16. Moving slide plate; 17. Spring; 18. Adjusting inclined groove; 19. Adjusting pressure rod; 20. Connecting side block; 21. Sliding pressure plate; 22. Externally threaded slide rod; 23. Internally threaded limit block; 24. Connecting slide plate; 25. No. 2 interlocking card plate; 26. Rotating screw block. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figures 1 to 3 The utility model provides a technical solution: a five-protection interlocking device for high-voltage switchgear, comprising an equipment frame 1, a main shaft body 2 is installed on the upper end of the equipment frame 1, an isolation shaft body 3 is installed on the lower end of the equipment frame 1, one end of the main shaft body 2 is fixedly connected with a main shaft limiting disk 4, one end of the isolation shaft body 3 is fixedly connected with an isolation shaft limiting disk 8, two main shaft limiting side grooves 5 are arranged on the outer side of the main shaft limiting disk 4, two isolation shaft limiting side grooves 9 are arranged on the outer side of the isolation shaft limiting disk 8, one side of the equipment frame 1 is fixedly connected with a fixed side block 13, and the fixed side block 13 is internally slidably connected with a limiting slider 14, one side of the limit slider 14 is fixedly connected with a No. 1 interlocking card plate 12 that matches the main spindle limit side groove 5, the interior of the No. 1 interlocking card plate 12 is slidably connected with a No. 2 interlocking card plate 25 that matches the isolation shaft limit side groove 9, the interior of the No. 1 interlocking card plate 12 is slidably connected with a moving slide plate 16, the bottom of the moving slide plate 16 is fixedly connected with a connecting slide plate 24, the connecting slide plate 24 is slidably connected to the No. 1 interlocking card plate 12, the bottom of the connecting slide plate 24 is fixedly connected to the No. 2 interlocking card plate 25, the top of the moving slide plate 16 is fixedly connected with a spring 17, one end of the spring 17 is fixedly connected to the No. 1 interlocking card plate 12;

[0018] By rotating the internal thread limit block 23 outward, the internal thread limit block 23 leaves the outer side of the external thread slide rod 22, and the limit is cancelled. By rotating the rotating screw block 26, the rotating screw block 26 drives the adjusting screw 15 to rotate, and the adjusting screw 15 drives the outer limit slider 14 and the No. 1 interlocking card plate 12 on one side to move the position. The No. 1 interlocking card plate 12 leaves one of the main spindle limit side grooves 5 on the outer side of the spindle limit disk 4. The spindle body 2 and the spindle limit disk 4 are rotated to limit and fix the No. 1 interlocking card plate 12 and the other main spindle limit side groove 5, and then the spring 17 is reset and drives the movement The slide plate 16, the connecting slide plate 24 and the No. 2 interlocking card plate 25 are reset, and the external threaded slide rod 22 is pressed inward, and the external threaded slide rod 22 drives the sliding pressure plate 21 and the adjusting pressure rod 19 to move inward, and the adjusting pressure rod 19 presses the moving slide plate 16 through the adjusting inclined groove 18 and drives the connecting slide plate 24 and the No. 2 interlocking card plate 25 to move, and the No. 2 interlocking card plate 25 leaves the isolation shaft limiting side groove 9 outside the current isolation shaft limiting disk 8. When the isolation shaft body 3 drives the isolation shaft limiting disk 8 to rotate, the No. 2 interlocking card plate 25 is reset and fixed with the other isolation shaft limiting side groove 9 to open and close the isolation switch.

[0019] Among them, an adjusting bevel groove 18 is opened inside the movable slide plate 16, and a sliding pressure plate 21 is slidably connected inside the No. 1 interlocking card 12. An adjusting pressure rod 19 that cooperates with the adjusting bevel groove 18 is fixedly connected to one side of the sliding pressure plate 21, and the adjusting pressure rod 19 is slidably connected to the adjusting bevel groove 18.

[0020] Among them, the outer side of the sliding pressure plate 21 is slidably connected with a connecting side block 20, and the connecting side block 20 is fixedly connected to the No. 1 interlocking card plate 12. One side of the sliding pressure plate 21 is fixedly connected with an externally threaded slide rod 22, and the externally threaded slide rod 22 is slidably connected to the connecting side block 20. The externally threaded slide rod 22 is pressed inwardly, and the externally threaded slide rod 22 drives the sliding pressure plate 21 and the adjusting pressure rod 19 to move inward. The adjusting pressure rod 19 presses the moving slide plate 16 through the adjusting inclined groove 18 and drives the connecting slide plate 24 and the No. 2 interlocking card plate 25 to move, and the No. 2 interlocking card plate 25 leaves the isolation shaft limiting side groove 9 on the outside of the current isolation shaft limiting disk 8.

[0021] The outer side of the external threaded slide rod 22 is threadedly connected to an internal threaded limit block 23 , and the pressing position of the external threaded slide rod 22 is limited by the internal threaded limit block 23 .

[0022] Among them, the internal thread of the limit slider 14 is connected with an adjusting screw rod 15, the adjusting screw rod 15 is rotatably connected to the fixed side block 13, the bottom of the fixed side block 13 is rotatably connected with a rotating screw block 26, one end of the adjusting screw rod 15 is fixedly connected to the rotating screw block 26, by rotating the rotating screw block 26, the rotating screw block 26 drives the adjusting screw rod 15 to rotate and adjust, so as to facilitate the adjustment of the adjusting screw rod 15.

[0023] Among them, a No. 1 limiting groove 6 is opened on the outer side of the spindle limit plate 4, and a No. 1 limiting column 7 cooperating with the No. 1 limiting groove 6 is fixedly connected to one side of the equipment frame 1. When the spindle limit plate 4 rotates, the rotation angle is limited by the limitation between the No. 1 limiting groove 6 and the No. 1 limiting column 7.

[0024] Among them, a No. 2 limiting groove 10 is opened on the outer side of the isolation shaft limit plate 8, and a No. 2 limiting column 11 that cooperates with the No. 2 limiting groove 10 is fixedly connected to one side of the equipment frame 1. When the isolation shaft limit plate 8 rotates, the No. 2 limiting groove 10 is driven to rotate, and the limit between the No. 2 limiting groove 10 and the No. 2 limiting column 11 limits the rotation angle of the isolation shaft limit plate 8.

[0025] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0027] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A five-protection interlocking device for high-voltage switchgear, comprising a device frame (1), characterized in that: A main shaft body (2) is installed at the upper end of the equipment frame (1), and an isolation shaft body (3) is installed at the lower end of the equipment frame (1); one end of the main shaft body (2) is fixedly connected to a main shaft limiting plate (4), and one end of the isolation shaft body (3) is fixedly connected to an isolation shaft limiting plate (8); two main shaft limiting side grooves (5) are provided on the outer side of the main shaft limiting plate (4), and two isolation shaft limiting side grooves (9) are provided on the outer side of the isolation shaft limiting plate (8); one side of the equipment frame (1) is fixedly connected to a fixed side block (13), and the fixed side block (13) is internally slidably connected to a limiting slider (14), and one side of the limiting slider (14) is fixedly connected to A No. 1 interlocking card plate (12) is matched with the main spindle limiting side groove (5), and the No. 1 interlocking card plate (12) is internally slidably connected with a No. 2 interlocking card plate (25) that is matched with the isolation shaft limiting side groove (9). The No. 1 interlocking card plate (12) is internally slidably connected with a moving slide plate (16), and the bottom of the moving slide plate (16) is fixedly connected with a connecting slide plate (24), and the connecting slide plate (24) is slidably connected to the No. 1 interlocking card plate (12), and the bottom of the connecting slide plate (24) is fixedly connected to the No. 2 interlocking card plate (25), and the top of the moving slide plate (16) is fixedly connected with a spring (17), and one end of the spring (17) is fixedly connected to the No. 1 interlocking card plate (12).

2. A five-protection interlocking device for high-voltage switchgear according to claim 1, characterized in that: An adjusting inclined groove (18) is provided inside the movable slide plate (16), a sliding pressure plate (21) is slidably connected inside the No. 1 interlocking card plate (12), an adjusting pressure rod (19) matched with the adjusting inclined groove (18) is fixedly connected to one side of the sliding pressure plate (21), and the adjusting pressure rod (19) is slidably connected to the adjusting inclined groove (18).

3. A five-protection interlocking device for high-voltage switchgear according to claim 2, characterized in that: The outer side of the sliding pressure plate (21) is slidably connected to a connecting side block (20), and the connecting side block (20) is fixedly connected to the No. 1 interlocking card plate (12). One side of the sliding pressure plate (21) is fixedly connected to an externally threaded sliding rod (22), and the externally threaded sliding rod (22) is slidably connected to the connecting side block (20).

4. A five-protection interlocking device for high-voltage switchgear according to claim 3, characterized in that: The outer side of the external threaded sliding rod (22) is threadedly connected to an internal threaded limiting block (23).

5. A five-protection interlocking device for high-voltage switchgear according to claim 1, characterized in that: The internal thread of the limit slider (14) is connected with an adjusting screw rod (15), the adjusting screw rod (15) is rotatably connected with the fixed side block (13), the bottom of the fixed side block (13) is rotatably connected with a rotating screw block (26), and one end of the adjusting screw rod (15) is fixedly connected with the rotating screw block (26).

6. A five-protection interlocking device for high-voltage switchgear according to claim 1, characterized in that: A first limiting groove (6) is provided on the outer side of the main shaft limiting plate (4), and a first limiting column (7) matching with the first limiting groove (6) is fixedly connected to one side of the equipment frame (1).

7. A five-protection interlocking device for high-voltage switchgear according to claim 1, characterized in that: A second limiting groove (10) is provided on the outer side of the isolation shaft limiting plate (8), and a second limiting column (11) matching with the second limiting groove (10) is fixedly connected to one side of the equipment frame (1).

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