Indoor high-voltage grounding switch

Abstract

The utility model discloses an indoor high-voltage grounding switch, which comprises a base, a plurality of mounting racks are fixedly connected to the end face of the front end of the base, connecting racks are rotatably connected in the mounting racks, a plurality of special-shaped holes are formed in the connecting racks, moving contacts are fixedly connected in the special-shaped holes through bolts, and the moving contacts are connected with the mounting racks through bolts. An adjusting hole is arranged above the surface of the moving contact, and an adjusting device is arranged in the adjusting hole. According to the utility model, through the arrangement of the adjusting device, the clamping force of the first contact piece and the second contact piece is adjusted, better contact between the moving contact and the static contact is ensured, meanwhile, in order to increase the contact capability between the moving contact and the static contact, the contact block is arranged, and the bottom of the static contact is contacted through the arrangement of the contact block; the contact capability of the moving contact and the static contact is further improved, and the service life of the high-voltage grounding switch is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding switches, in particular to an indoor high-voltage grounding switch. Background Art

[0002] A grounding switch is a mechanical grounding device that releases static electricity from the equipment and circuits being repaired, thereby ensuring that maintenance personnel can safely install the grounding device during power outages. Existing grounding switches have gradually been upgraded from ordinary manual control to electric control for ease of operation. For electric-controlled grounding switches, it is often necessary to ensure that components such as the controller can maintain normal operation, thereby achieving smooth closing and opening control of the grounding switch.

[0003] In the current existing technology, when the grounding switch is in use, the closing and opening work is carried out through the contact between the moving contact and the static contact, and the contact is in the form of point or surface contact. After a long period of closing and opening, the surfaces of the moving contact and the static contact are worn, resulting in a gap between the moving contact and the static contact, causing poor contact, thereby affecting the service life of the high-voltage grounding switch. Summary of the invention

[0004] The utility model aims to provide an indoor high-voltage grounding switch to solve the problem mentioned in the background technology that in the prior art, the grounding switch is used to close and open the switch through the contact between the moving contact and the static contact, and the contact is in the form of point or surface contact. After a long period of closing and opening, the surfaces of the moving contact and the static contact are worn, resulting in a gap between the moving contact and the static contact, causing poor contact, thereby affecting the service life of the high-voltage grounding switch.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an indoor high-voltage grounding switch, comprising a base, a plurality of mounting frames fixedly connected to the front end face of the base, a connecting frame rotatably connected inside the mounting frame, a plurality of special-shaped holes formed on the connecting frame, a moving contact fixedly connected inside the special-shaped hole by bolts, an adjustment hole formed above the surface of the moving contact, and an adjustment device provided inside the adjustment hole.

[0006] Preferably, the moving contact comprises a first contact piece and a second contact piece, a connecting hole is opened at the center of the surface of the first contact piece and the second contact piece, and bolts are arranged in the special-shaped hole and the connecting hole.

[0007] Preferably, the adjustment device includes a threaded rod, a compression spring and an adjustment nut, the threaded rod is arranged on the outer wall of the first contact piece, the adjustment nut is arranged on the outer wall of the second contact piece, the connecting end of the threaded rod passes through the adjustment hole and is rotatably connected to the adjusting nut, the compression spring is sleeved on the surface of the threaded rod, and the two ends of the compression spring are respectively abutted against the inner walls of the first contact piece and the second contact piece.

[0008] Preferably, the inner walls of the first contact piece and the second contact piece are fixedly connected with a contact block located just above the adjusting device.

[0009] Preferably, insulating seats having the same number as the mounting frame are fixedly mounted on the top of the base, and static contacts are fixedly connected to the top of the insulating seats by bolts.

[0010] Beneficial Effects

[0011] Compared with the existing technology, the beneficial effects of the utility model are:

[0012] The utility model provides an adjustment device to adjust the clamping force of the first contact piece and the second contact piece, thereby ensuring better contact between the moving contact and the static contact. At the same time, in order to increase the contact ability between them, a contact block is provided. The contact block is provided to make contact with the bottom of the static contact, thereby further improving the contact ability between the moving contact and the static contact and prolonging the service life of the high-voltage grounding switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the matching structure of the moving contact and the connecting frame of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the connecting frame of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the moving contact of the utility model.

[0017] 1. Base; 2. Mounting frame; 3. Connecting frame; 4. Moving contact; 5. Insulating seat; 6. Static contact; 7. Adjusting device; 31. Special-shaped hole; 41. First contact piece; 42. Second contact piece; 43. Connecting hole; 44. Bolt;

[0018] 71. Threaded rod; 72. Adjusting nut; 73. Compression spring; 74. Adjusting hole; 75. Contact block. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are 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.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore are not to be construed as limiting the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

[0021] like Figure 1-4 It is a structural schematic diagram of an indoor high-voltage grounding switch of a preferred embodiment of the utility model. In this embodiment, an indoor high-voltage grounding switch includes a base 1, and a plurality of mounting frames 2 are fixedly connected to the front end surface of the base 1. A connecting frame 3 is connected by rotation in the mounting frame 2. The rotation of the connecting frame 3 drives the moving contact 4 to contact with the static contact 6 to realize the closing and opening of the grounding switch. A plurality of special-shaped holes 31 are opened on the connecting frame 3, and the moving contact 4 is fixedly connected in the special-shaped hole 31 by bolts 44. The design of this structure can adjust the telescopic length of the moving contact 4 according to actual use. In addition, after a long time of contact between the moving contact 4 and the static contact 6, corresponding wear will occur. The gap can be adjusted according to this structure. An adjustment hole 74 is opened above the surface of the moving contact 4. An adjustment device 7 is arranged in the adjustment hole 74, so as to adjust the clamping force of the moving contact 4, so that it can better contact with the outer walls on the left and right sides of the static contact 6. Through the design of the above structure, the problems raised in the background technology are effectively solved, and the service life of the indoor high-voltage grounding switch is further improved.

[0022] In this embodiment, the moving contact 4 includes a first contact piece 41 and a second contact piece 42. A connecting hole 43 is opened at the center of the surface of the first contact piece 41 and the second contact piece 42, and bolts 44 are arranged in the special-shaped hole 31 and the connecting hole 43. It is possible to loosen the bolts 44 according to actual needs, so that the moving contact 4 can slide in the special-shaped hole 31 driven by the bolts 44.

[0023] In this embodiment, the adjusting device 7 includes a threaded rod 71, a compression spring 73 and an adjusting nut 72. The threaded rod 71 is arranged on the outer wall of the first contact piece 41, and the adjusting nut 72 is arranged on the outer wall of the second contact piece 42. The connecting end of the threaded rod 71 passes through the adjusting hole 74 and is rotatably connected to the adjusting nut 72. Through the cooperation of the threaded rod 71 and the adjusting nut 72, the spacing between the first contact piece 41 and the second contact piece 42 can be adjusted. At the same time, in order to reduce the spacing between the first contact piece 41 and the second contact piece 42 and prevent the first contact piece 41 and the second contact piece 42 from deforming and causing the phenomenon of being narrow at the bottom and wide at the top, the compression spring 73 is sleeved on the surface of the threaded rod 71 to have a supporting effect, and the two ends of the compression spring 73 are respectively against the inner walls of the first contact piece 41 and the second contact piece 42.

[0024] In this embodiment, a contact block 75 is fixedly connected to the inner wall of the first contact piece 41 and the second contact piece 42 just above the adjustment device 7. The contact block 75 can increase the contact area between the moving contact 4 and the static contact 6, further ensuring the normal use of the indoor high-voltage grounding switch.

[0025] In this embodiment, the same number of insulating seats 5 as the number of mounting frames 2 are fixedly mounted on the top of the base 1 , and the static contacts 6 are fixedly connected to the top of the insulating seats 5 via bolts 44 .

[0026] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. An indoor high-voltage grounding switch, comprising a base (1), characterized in that: The front end surface of the base (1) is fixedly connected to a plurality of mounting frames (2), the mounting frames (2) are rotatably connected to a connecting frame (3), the connecting frame (3) is provided with a plurality of special-shaped holes (31), a moving contact (4) is fixedly connected to the special-shaped holes (31) via bolts (44), an adjustment hole (74) is provided above the surface of the moving contact (4), and an adjustment device (7) is arranged in the adjustment hole (74).

2. An indoor high voltage grounding switch according to claim 1, characterized in that: The moving contact (4) comprises a first contact piece (41) and a second contact piece (42), a connecting hole (43) is provided at the center of the surface of the first contact piece (41) and the second contact piece (42), and bolts (44) are arranged in the special-shaped hole (31) and the connecting hole (43).

3. An indoor high voltage grounding switch according to claim 1, characterized in that: The adjusting device (7) comprises a threaded rod (71), a compression spring (73) and an adjusting nut (72); the threaded rod (71) is arranged on the outer wall of the first contact piece (41); the adjusting nut (72) is arranged on the outer wall of the second contact piece (42); the connecting end of the threaded rod (71) passes through the adjusting hole (74) and is rotatably connected to the adjusting nut (72); the compression spring (73) is sleeved on the surface of the threaded rod (71), and the two ends of the compression spring (73) are respectively abutted against the inner walls of the first contact piece (41) and the second contact piece (42).

4. An indoor high-voltage grounding switch according to claim 2, characterized in that: The inner walls of the first contact piece (41) and the second contact piece (42) are located just above the adjustment device (7) and are fixedly connected with a contact block (75).

5. An indoor high voltage grounding switch according to claim 1, characterized in that: The top of the base (1) is fixedly mounted with insulating seats (5) having the same number as the mounting frame (2), and the top of the insulating seat (5) is fixedly connected with a static contact (6) via a bolt (44).

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