Grounding structure of high-voltage isolating switch

Abstract

The utility model discloses a grounding structure of a high-voltage isolating switch, which relates to the technical field of electrical equipment and comprises a base, a first insulator and a second insulator are fixedly connected to two sides of the top end of the base respectively, and a static contact and a moving contact are fixedly connected to the top ends of the first insulator and the second insulator respectively. The inner wall of each moving contact is provided with a knife switch rod, each static contact is provided with a groove matched with the knife switch rod, one end of each static contact is fixedly connected with a conductive rod, one end of each conductive rod is fixedly connected with a grounding contact, and one side, corresponding to the first insulator, of the top end of the base is provided with a notch. Through the motor, the adjusting transmission assembly, the rotating shaft, the adjusting shaft and other structures, the effects of rapidly removing residual electric energy and improving the maintenance efficiency are achieved, and the problems that in a traditional grounding structure, residual electric energy cannot be rapidly removed, and the maintenance efficiency is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a grounding structure of a high-voltage isolating switch. Background Art

[0002] High-voltage disconnectors are important switchgear in the electrical systems of power plants and substations. They must be used in conjunction with high-voltage circuit breakers. Their main functions are to ensure the safety of high-voltage electrical appliances and devices during maintenance work and to isolate voltage. They are important electrical appliances in power plants, substations and various electrical supply and use systems. When the high-voltage disconnector is disconnected, the residual electric energy on the load side of the disconnector is released through the grounding structure, which serves as a protective facility to protect the maintenance personnel on the load side.

[0003] At present, the grounding structure on the market is generally closed when the high-voltage disconnector is disconnected. Therefore, the remaining electric energy on the static contact cannot be removed immediately, which affects the maintenance efficiency. In addition, the grounding structure is exposed to the outside world for a long time, which will cause corrosion to the structure of the connection, thus affecting the grounding effect.

[0004] To this end, this case proposes a grounding structure of a high-voltage disconnector to solve the above technical problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a grounding structure of a high-voltage disconnector, which can effectively solve the technical problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A grounding structure of a high-voltage disconnector, comprising a base, wherein a first insulator and a second insulator are fixedly connected to both sides of the top of the base, a static contact and a moving contact are fixedly connected to the top of the first insulator and the second insulator, respectively, a knife rod is provided on the inner wall of the moving contact, a groove matching the knife rod is provided on the static contact, a conductive rod is fixedly connected to one end of the static contact, a grounding contact is fixedly connected to one end of the conductive rod, a notch is provided on the side of the top of the base corresponding to the first insulator, an adjusting shaft is rotatably connected between the notches, a grounding gate is fixedly connected in the corresponding notches on the outer wall of the adjusting shaft, a grounding notch is provided at one end of the grounding gate, a grounding wire is fixedly connected to the bottom end of the grounding gate, a rotating shaft is rotatably connected to the moving contact, the rotating shaft is fixedly connected to the knife rod, and the rotating shaft and the adjusting shaft are connected via an adjusting transmission assembly.

[0008] As a further solution of the utility model, the adjusting transmission assembly includes a square through hole, which is penetrated on the top of the base, and a main gear is rotatably connected to the middle of the inner wall of the square through hole, and the outer diameter of the main gear is respectively meshed with a first sub-gear and a second sub-gear, and the first sub-gear is fixedly connected to the adjusting shaft.

[0009] As a further solution of the utility model, a transmission shaft is fixedly connected to the inner wall of the second sub-gear, the transmission shaft is rotatably connected to the square through hole, and the transmission shaft is connected to the rotating shaft through a belt transmission mechanism.

[0010] As a further solution of the utility model, one end of the base corresponding to the position of the square through hole is fixedly connected to a motor, and the motor driving end is fixedly connected to the main gear.

[0011] As a further solution of the utility model, the outer sides of the corresponding notches on the base are fixedly connected with arc covers, the grounding contacts are arranged in the arc covers, and the arc covers are not in contact with the conductive rods.

[0012] As a further solution of the utility model, a first protective cover is fixedly connected to a position at the top of the base corresponding to the square through hole, and the first protective cover is rotatably connected to the rotating shaft.

[0013] As a further solution of the utility model, a second protective cover is fixedly connected to one end of the base corresponding to the outer side of the motor, and the second protective cover is arranged below the first protective cover.

[0014] The beneficial effects of the utility model are as follows:

[0015] Through the cooperation of the motor, the adjustment transmission assembly, the rotating shaft and the adjustment shaft, when the knife rod is away from the static contact, the grounding switch can be close to the grounding contact and clamped on the grounding contact through the grounding notch. Therefore, the grounding structure can be connected immediately when the disconnector is disconnected, so that the residual electric energy on the static contact can be removed at the first time, thereby improving the maintenance efficiency and safety.

[0016] The arc-shaped cover can protect the grounding contact and the grounding gate to prevent corrosion of the grounding contact and the grounding gate caused by long-term exposure to the outside world, thereby ensuring the contact effect of the grounding contact and the grounding gate, and then improving the grounding effect. The first protective cover and the second protective cover can protect the motor and the adjustment transmission assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a grounding structure of a high-voltage disconnector of the utility model;

[0018] Figure 2This is a bottom-up stereogram of a grounding structure of a high-voltage disconnector according to the utility model;

[0019] Figure 3 It is a top perspective view of a grounding structure of a high-voltage disconnector according to the utility model;

[0020] Figure 4 The utility model is a structural diagram of an adjusting transmission component of a grounding structure of a high-voltage disconnect switch.

[0021] In the figure: 1. base; 2. first insulator; 3. second insulator; 4. static contact; 5. moving contact; 6. knife rod; 7. conductive rod; 8. grounding contact; 9. notch; 10. adjusting shaft; 11. grounding switch; 12. grounding notch; 13. grounding wire; 14. rotating shaft; 15. main gear; 16. first sub-gear; 17. second sub-gear; 18. transmission shaft; 19. belt transmission mechanism; 20. motor; 21. arc cover; 22. first protective cover; 23. second protective cover; 24. square through hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-4 As shown, a grounding structure of a high-voltage disconnector comprises a base 1, wherein first insulators 2 and second insulators 3 are fixedly connected to both sides of the top of the base 1, and static contacts 4 and moving contacts 5 are fixedly connected to the tops of the first insulator 2 and the second insulator 3, respectively. A knife rod 6 is arranged on the inner wall of the moving contact 5, and a groove matching the knife rod 6 is provided on the static contact 4, and a conductive rod 7 is fixedly connected to one end of the static contact 4, and a grounding contact 8 is fixedly connected to one end of the conductive rod 7, and a notch 9 is provided on the side of the top of the base 1 corresponding to the first insulator 2, and an adjusting shaft 10 is rotatably connected between the notches 9, and a grounding gate 11 is fixedly connected in the outer wall of the adjusting shaft 10 corresponding to the notch 9, and a grounding notch 12 is provided at one end of the grounding gate 11, and a grounding wire 13 is fixedly connected to the bottom end of the grounding gate 11, and a rotating shaft 14 is rotatably connected to the moving contact 5, and the rotating shaft 14 is fixedly connected to the knife rod 6, and the rotating shaft 14 and the adjusting shaft 10 are connected through an adjusting transmission component.

[0024] In this embodiment, the adjustment transmission assembly includes a square through hole 24, which is penetrated on the top of the base 1, and the middle of the inner wall of the square through hole 24 is rotatably connected with the main gear 15, and the outer diameter of the main gear 15 is respectively meshed with the first sub-gear 16 and the second sub-gear 17, and the first sub-gear 16 is fixedly connected to the adjustment shaft 10;

[0025] The main gear 15 is limited by the rotating shaft. Since the first sub-gear 16 and the second sub-gear 17 are symmetrically distributed on both sides of the main gear 15, the first sub-gear 16 and the second sub-gear 17 rotate in the same direction.

[0026] In this embodiment, a transmission shaft 18 is fixedly connected to the inner wall of the second sub-gear 17, the transmission shaft 18 is rotatably connected to the square through hole 24, and the transmission shaft 18 is connected to the rotating shaft 14 via a belt transmission mechanism 19;

[0027] The second sub-gear 17 rotates the transmission shaft 18 , and the transmission shaft 18 rotates the rotating shaft 14 via the belt transmission mechanism 19 , so the rotating shaft 14 and the adjusting shaft 10 rotate in the same direction.

[0028] In this embodiment, the motor 20 is fixedly connected to one end of the base 1 corresponding to the position of the square through hole 24, and the driving end of the motor 20 is fixedly connected to the main gear 15;

[0029] The motor 20 serves as a power source to provide power for rotation.

[0030] In this embodiment, the outer sides of the corresponding notches 9 on the base 1 are fixedly connected with arc covers 21, the grounding contacts 8 are arranged in the arc covers 21, and the arc covers 21 and the conductive rods 7 are not in contact;

[0031] The arc-shaped cover 21 can protect the grounding contact 8 and the grounding gate 11 to prevent them from rusting and causing poor contact.

[0032] In this embodiment, a first protective cover 22 is fixedly connected to a position at the top of the base 1 corresponding to the square through hole 24, and the first protective cover 22 is rotatably connected to the rotating shaft 14;

[0033] The adjustment transmission assembly is protected by the first protective cover 22 .

[0034] In this embodiment, a second protective cover 23 is fixedly connected to one end of the base 1 corresponding to the outer side of the motor 20, and the second protective cover 23 is arranged below the first protective cover 22;

[0035] The motor 20 is protected by the second protective cover 23 .

[0036] It should be noted that the utility model is a grounding structure of a high-voltage disconnector. When in use, the motor 20 is first started to rotate the main gear 15, thereby rotating the first sub-gear 16 and the second sub-gear 17. The first sub-gear 16 rotates the adjustment shaft 10, and the second sub-gear 17 rotates the rotating shaft 14 in cooperation with the transmission shaft 18 and the belt transmission mechanism 19. Since the first sub-gear 16 and the second sub-gear 17 rotate in the same direction, when the knife rod 6 is away from the static contact 4, the grounding switch 11 will approach the grounding contact 8 and be stuck on the grounding contact 8 through the grounding notch 12. Therefore, the grounding structure can be immediately connected when the disconnector is disconnected, so that the residual electric energy on the static contact 4 can be removed at the first time, thereby improving the maintenance efficiency and safety.

[0037] In addition, the arc-shaped cover 21 can protect the grounding contact 8 and the grounding gate 11 to prevent corrosion of the grounding contact 8 and the grounding gate 11 caused by long-term exposure to the outside world, thereby ensuring the contact effect of the grounding contact 8 and the grounding gate 11, and further improving the grounding effect. In addition, the first protective cover 22 and the second protective cover 23 can protect the motor and the adjustment transmission assembly.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. 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, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A grounding structure for a high-voltage disconnector, comprising a base (1), wherein a first insulator (2) and a second insulator (3) are fixedly connected to the top of the base (1), respectively, and a static contact (4) and a moving contact (5) are fixedly connected to the top of the first insulator (2) and the second insulator (3), respectively, wherein a knife rod (6) is arranged on the inner wall of the moving contact (5), and a groove matching the knife rod (6) is provided on the static contact (4), characterized in that: One end of the stationary contact (4) is fixedly connected to a conductive rod (7), and one end of the conductive rod (7) is fixedly connected to a grounding contact (8). A notch (9) is provided on the top of the base (1) on a side corresponding to the first insulator (2), and an adjusting shaft (10) is rotatably connected between the notches (9). An earthing gate (11) is fixedly connected in the outer wall of the adjusting shaft (10) corresponding to the notch (9). One end of the earthing gate (11) is provided with a grounding notch (12), and the bottom end of the earthing gate (11) is fixedly connected to a grounding wire (13). A rotating shaft (14) is rotatably connected to the moving contact (5), and the rotating shaft (14) is fixedly connected to the knife rod (6), and the rotating shaft (14) and the adjusting shaft (10) are connected via an adjusting transmission assembly.

2. A grounding structure for a high-voltage disconnector according to claim 1, characterized in that: The adjustment transmission assembly comprises a square through hole (24), the square through hole (24) being arranged on the top of the base (1), a main gear (15) being rotatably connected to the middle of the inner wall of the square through hole (24), a first sub-gear (16) and a second sub-gear (17) being meshedly connected to the outer diameter of the main gear (15), and the first sub-gear (16) and the adjustment shaft (10) being fixedly connected.

3. A grounding structure for a high-voltage disconnector according to claim 2, characterized in that: A transmission shaft (18) is fixedly connected to the inner wall of the second sub-gear (17); the transmission shaft (18) is rotatably connected to the square through hole (24); and the transmission shaft (18) is connected to the rotating shaft (14) via a belt transmission mechanism (19).

4. A grounding structure for a high-voltage disconnector according to claim 3, characterized in that: A motor (20) is fixedly connected to one end of the base (1) corresponding to the position of the square through hole (24), and a driving end of the motor (20) is fixedly connected to the main gear (15).

5. The grounding structure of a high-voltage disconnector according to claim 1, characterized in that: The outer sides of the corresponding notches (9) on the base (1) are fixedly connected with arc-shaped covers (21), the grounding contacts (8) are arranged in the arc-shaped covers (21), and the arc-shaped covers (21) and the conductive rods (7) are not in contact.

6. A grounding structure for a high-voltage disconnector according to claim 1, characterized in that: A first protective cover (22) is fixedly connected to a position of the top end of the base (1) corresponding to the square through hole (24), and the first protective cover (22) is rotatably connected to the rotating shaft (14).

7. A grounding structure for a high-voltage disconnector according to claim 4, characterized in that: A second protective cover (23) is fixedly connected to one end of the base (1) corresponding to the outer side of the motor (20), and the second protective cover (23) is arranged below the first protective cover (22).

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