Vacuum load switch structure

Abstract

The utility model relates to the technical field of vacuum load switches, in particular to a vacuum load switch structure, which comprises a mounting seat, a first pole and a second pole are fixedly connected to the upper end of the mounting seat, a rotating seat is fixedly connected to the upper end of the first pole, a moving contact is rotatably connected in the rotating seat, a moving contact is fixedly connected to the side wall of the moving contact, and a movable contact is fixedly connected to the side wall of the moving contact. The upper end of the second pole is fixedly connected with a static contact and an insulation fixing frame, the static contact is located in the insulation fixing frame, and the movable contact is in contact fit with the static contact. The movable contact drives the movable contact to be in contact with the static contact in the insulating fixed frame to form a closing state, and during opening, the static contact and the movable contact are separated from the insulating fixed frame, the two groups of partition plates are reset under the action of the torsion spring, and the static contact and the movable contact are separated, so that an arc is segmented, the arc is prevented from being lengthened, and the time for switching on and off a fault circuit by the switch is prolonged; the risk probability of electrical accidents is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of vacuum load switches, in particular to a vacuum load switch structure. Background Art

[0002] The vacuum load switch is a high-voltage load switch used to open and close load current, which is of great significance to ensure the safe and reliable operation of the power grid.

[0003] The existing vacuum load switch structure, for example, the indoor high-voltage vacuum load isolating switch proposed in the patent "CN202122217706.1", uses structures such as a spring, a first clamping plate, and a second clamping plate. The setting of the spring enables the static contact to always fit with the moving contact, thereby ensuring that the contact position of the moving and static contacts is reliable and stable. The conductive part is in contact with the static contact, and even if electrical corrosion occurs, the conductive part can be replaced simply and conveniently.

[0004] However, when the moving contact and the static contact are closed or opened, an arc is easily generated between the two. As the distance between the two is extended to a certain extent, the time it takes for the switch to break the fault circuit is prolonged, which is prone to electrical accident risks and affects the life of the equipment. Therefore, a vacuum load switch structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a vacuum load switch structure to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A vacuum load switch structure, comprising a mounting seat, wherein a pole 1 and a pole 2 are fixedly connected to the upper end of the mounting seat, a rotating seat is fixedly connected to the upper end of the pole 1, a moving contact is rotatably connected in the rotating seat, a moving contact point is fixedly connected to the side wall of the moving contact, a static contact and an insulating fixed frame are fixedly connected to the upper end of the pole 2, the static contact is located inside the insulating fixed frame, and the moving contact point is in contact with the static contact;

[0008] Two groups of mounting grooves are symmetrically provided at the upper end of the inner wall of the insulating fixed frame, two groups of shaft bodies are fixedly connected in the two groups of mounting grooves, partitions are rotatably connected to the side walls of the two groups of shaft bodies, and a torsion spring is sleeved on the side walls of the shaft bodies, one end of the torsion spring is fixedly connected to the partition, and the other end is fixedly connected to the inner wall of the insulating fixed frame, the upper end of the partition is abutted against the upper wall of the mounting groove, and the ends of the two groups of partitions are abutted against each other.

[0009] Preferably, the two groups of mounting grooves are respectively located on both sides of the inner wall of the fixing frame, and the inner wall of the insulating fixing frame is symmetrically provided with two groups of inclined grooves, the two groups of inclined grooves are respectively below the two groups of mounting grooves, and the upper ends of the two groups of inclined grooves are respectively connected to the two groups of mounting grooves.

[0010] Preferably, an electric push rod is rotatably connected to the upper end of the mounting seat, an insulating extension portion is fixedly connected to the end of the moving contact, and an output end of the electric push rod is slidably connected to the insulating extension portion.

[0011] Preferably, a sphere is fixedly connected to the output end of the electric push rod, a connecting groove is opened inside the insulating extension part, the cross-section of the connecting groove is set to be circular, a sliding groove is opened at the lower end of the insulating extension part, the sliding groove is connected to the connecting groove, the sphere is slidably connected in the connecting groove, and the output end of the electric push rod passes through the sliding groove.

[0012] Preferably, the bottoms of the poles 1 and 2 are both fixedly connected to bases, and the bases are fixedly connected to the upper ends of the mounting seats.

[0013] Preferably, a plurality of groups of pillars are fixedly connected to the upper end of the mounting seat, a protective plate is commonly fixedly connected to the upper ends of the plurality of groups of pillars, the protective plate is located above the first pole and the second pole, and side plates are fixedly connected to both sides of the protective plate.

[0014] Beneficial effects of the utility model:

[0015] The utility model drives the moving contact to contact the static contact inside the insulating fixed frame to form a closed state through the moving contact. When opening the switch, the static and moving contacts are separated from the insulating fixed frame, and the two groups of partitions are reset under the action of the torsion spring to separate the static contact from the moving contact, thereby dividing the arc, avoiding the arc from being elongated to extend the time it takes for the switch to break the fault circuit, reducing the risk of electrical accidents and increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the insulating extension part of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the insulating fixed frame of the utility model;

[0020] Figure 4 It is a schematic diagram of the partition structure of the utility model;

[0021] The reference numerals in the figures are as follows:

[0022] 1. Mounting seat; 2. Pillar; 3. Protective plate; 4. Side plate; 5. Base; 6. Pole 1; 7. Rotating seat; 8. Moving contact; 9. Moving contact; 10. Insulating extension; 11. Connecting groove; 12. Sliding groove; 13. Electric push rod; 14. Ball; 15. Pole 2; 16. Insulating fixing frame; 17. Static contact; 19. Inclined groove; 20. Mounting groove; 21. Shaft; 22. Partition; 23. Torsion spring. DETAILED DESCRIPTION

[0023] 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 of 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.

[0024] A vacuum load switch structure, such as Figure 1-Figure 4 As shown, it includes a mounting base 1, which is installed on an electrical device or a grounding column. The upper end of the mounting base 1 is fixedly connected to a pole 1 6 and a pole 2 15. The upper end of the pole 1 6 is fixedly connected to a rotating base 7. A moving contact 8 is rotatably connected inside the rotating base 7. The moving contact 8 is connected to the line for conductivity. A moving contact 9 is fixedly connected to the side wall of the moving contact 8. The moving contact 9 is conductive. The upper end of the pole 2 15 is fixedly connected to a static contact 17 and an insulating fixed frame 16. The static contact 17 is located inside the insulating fixed frame 16. The moving contact 9 is in contact with the static contact 17. One end of the static contact 17 is connected to a wire. The insulating fixed frame 16 is made of insulating, high-temperature and corrosion-resistant material. The moving contact 9 is plugged into the insulating fixed frame 16.

[0025] Two groups of mounting grooves 20 are symmetrically provided at the upper end of the inner wall of the insulating fixed frame 16, and two groups of shaft bodies 21 are fixedly connected in the two groups of mounting grooves 20. The side walls of the two groups of shaft bodies 21 are rotatably connected with partitions 22, and the side walls of the shaft bodies 21 are sleeved with torsion springs 23, one end of the torsion spring 23 is fixedly connected to the partition 22, and the other end is fixedly connected to the inner wall of the insulating fixed frame 16, the upper end of the partition 22 is abutted against the upper wall of the mounting groove 20, and the ends of the two groups of partitions 22 are abutted against each other.

[0026] The moving contact 8 drives the moving contact 9 to contact the static contact 17 inside the insulating fixed frame 16 to form a closed state. The moving contact 9 squeezes the two groups of partitions 22 to rotate the partitions 22 toward the inside of the insulating fixed frame 16, and the elastic potential energy of the torsion spring 23 increases. When opening the switch, the static and moving contacts 9 are separated from the insulating fixed frame 16, and the two groups of partitions 22 are reset under the action of the torsion spring 23 to separate the static contact 17 from the moving contact 9, thereby dividing and cutting off the arc, avoiding the arc from being elongated and extending the time for the switch to break the fault circuit, reducing the risk of electrical accidents and increasing the service life of the equipment. The partition 22 is a high-temperature and corrosion-resistant material that can be insulated, and can also be a structure and material similar to the arc-extinguishing grid, which plays a role in timely isolation and arc division when opening the switch.

[0027] The two groups of mounting grooves 20 are respectively located on both sides of the inner wall of the fixing frame. The inner wall of the insulating fixing frame 16 is symmetrically provided with two groups of inclined grooves 19 . The two groups of inclined grooves 19 are respectively below the two groups of mounting grooves 20 , and the upper ends of the two groups of inclined grooves 19 are respectively connected to the two groups of mounting grooves 20 .

[0028] like Figure 3 As shown, the two groups of mounting grooves 20 are symmetrical, which facilitates the relative rotation of the two groups of partitions 22 , and the inclined grooves 19 facilitate the partitions 22 to fit the inner wall of the insulating fixed frame 16 .

[0029] The upper end of the mounting seat 1 is rotatably connected with an electric push rod 13 , the end of the moving contact 8 is fixedly connected with an insulating extension part 10 , and the output end of the electric push rod 13 is slidably connected with the insulating extension part 10 .

[0030] like Figure 2 As shown, the electric push rod 13 (model DYTP450- / 110) pushes and pulls the insulating extension part 10 to control the rotation of the moving contact 8 to open and close the switch. The output end of the electric push rod 13 is slidably connected with the insulating extension part 10 to prevent the electric push rod 13 from being locked. With the help of the electric push rod 13, manual operation of the opening and closing state is avoided.

[0031] A sphere 14 is fixedly connected to the output end of the electric push rod 13, a connecting groove 11 is provided inside the insulating extension part 10, and the cross-section of the connecting groove 11 is set to be circular. A sliding groove 12 is provided at the lower end of the insulating extension part 10, and the sliding groove 12 is connected to the connecting groove 11. The sphere 14 is slidably connected in the connecting groove 11, and the output end of the electric push rod 13 passes through the sliding groove 12.

[0032] like Figure 2 As shown, the output end of the electric push rod 13 extends, the tail rotates on the mounting seat 1, the ball 14 slides in the connecting groove 11 to change its position, and the output end slides in the sliding groove 12, so that the electric push rod 13 can move flexibly.

[0033] The bottoms of the pole 1 6 and the pole 2 15 are both fixedly connected to a base 5 , and the base 5 is fixedly connected to the upper end of the mounting seat 1 .

[0034] like Figure 1 As shown, the base 5 increases the bottom installation stability of the pole 1 6 and the pole 2 15 .

[0035] The upper end of the mounting seat 1 is fixedly connected to multiple groups of pillars 2, and the upper ends of the multiple groups of pillars 2 are commonly fixedly connected to a protective plate 3, the protective plate 3 is located above the pole 1 6 and the pole 2 15, and side plates 4 are fixedly connected to both sides of the protective plate 3.

[0036] like Figure 1 As shown, the protective plate 3 and the side plate 4 enable the switch to be used outdoors without fear of weather influences such as rain, thereby reducing the corrosion rate of the equipment.

[0037] The working principle of a vacuum load switch structure provided by the utility model is as follows:

[0038] The moving contact 8 drives the moving contact 9 to contact the static contact 17 inside the insulating fixed frame 16 to form a closed state. The moving contact 9 squeezes the two groups of partitions 22, causing the partitions 22 to rotate toward the inside of the insulating fixed frame 16, and the elastic potential energy of the torsion spring 23 increases. When opening the switch, the static and moving contacts 9 are separated from the insulating fixed frame 16, and the two groups of partitions 22 are reset under the action of the torsion spring 23, separating the static contact 17 from the moving contact 9, thereby dividing and cutting off the arc, avoiding the arc from being elongated and extending the time for the switch to break the fault circuit, reducing the risk of electrical accidents and increasing the service life of the equipment.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A vacuum load switch structure, comprising a mounting seat (1), characterized in that: The upper end of the mounting seat (1) is fixedly connected to a pole pole 1 (6) and a pole pole 2 (15); the upper end of the pole pole 1 (6) is fixedly connected to a rotating seat (7); a moving contact (8) is rotatably connected inside the rotating seat (7); a moving contact point (9) is fixedly connected to the side wall of the moving contact (8); a stationary contact (17) and an insulating fixed frame (16) are fixedly connected to the upper end of the pole pole 2 (15); the stationary contact (17) is located inside the insulating fixed frame (16); and the moving contact point (9) is in contact with the stationary contact (17); Two groups of mounting grooves (20) are symmetrically provided at the upper end of the inner wall of the insulating fixed frame (16), two groups of shaft bodies (21) are fixedly connected in the two groups of mounting grooves (20), the side walls of the two groups of shaft bodies (21) are rotatably connected with partitions (22), and the side walls of the shaft bodies (21) are sleeved with torsion springs (23), one end of the torsion spring (23) is fixedly connected to the partition (22), and the other end is fixedly connected to the inner wall of the insulating fixed frame (16), the upper end of the partition (22) is abutted against the upper wall of the mounting groove (20), and the ends of the two groups of partitions (22) are abutted against each other.

2. A vacuum load switch structure according to claim 1, characterized in that: The two groups of mounting grooves (20) are respectively located on both sides of the inner wall of the fixing frame. The inner wall of the insulating fixing frame (16) is symmetrically provided with two groups of inclined grooves (19). The two groups of inclined grooves (19) are respectively located below the two groups of mounting grooves (20), and the upper ends of the two groups of inclined grooves (19) are respectively connected to the two groups of mounting grooves (20).

3. A vacuum load switch structure according to claim 1, characterized in that: The upper end of the mounting seat (1) is rotatably connected to an electric push rod (13), the end of the moving contact (8) is fixedly connected to an insulating extension part (10), and the output end of the electric push rod (13) is slidably connected to the insulating extension part (10).

4. A vacuum load switch structure according to claim 3, characterized in that: The output end of the electric push rod (13) is fixedly connected with a sphere (14); a connecting groove (11) is provided inside the insulating extension part (10); the cross section of the connecting groove (11) is arranged to be circular; a sliding groove (12) is provided at the lower end of the insulating extension part (10); the sliding groove (12) is communicated with the connecting groove (11); the sphere (14) is slidably connected in the connecting groove (11); and the output end of the electric push rod (13) passes through the sliding groove (12).

5. A vacuum load switch structure according to claim 1, characterized in that: The bottoms of the pole 1 (6) and the pole 2 (15) are both fixedly connected to a base (5), and the base (5) is fixedly connected to the upper end of the mounting seat (1).

6. A vacuum load switch structure according to claim 1, characterized in that: The upper end of the mounting seat (1) is fixedly connected to a plurality of groups of pillars (2), and the upper ends of the plurality of groups of pillars (2) are commonly fixedly connected to a protective plate (3), the protective plate (3) is located above the first pole (6) and the second pole (15), and side plates (4) are fixedly connected to both sides of the protective plate (3).

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