CN210429649U

CN210429649U - Novel three-position switch

Info

Publication number: CN210429649U
Application number: CN201922000525.6U
Authority: CN
Inventors: 唐荔; 陈冠飞
Original assignee: Shenzhen Dongshengyuan Electrical Equipment Co ltd
Current assignee: Shenzhen Dongshengyuan Electrical Equipment Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-04-28
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a novel three-station switch, the power distribution box comprises a box body, the box internal rotation is equipped with the pivot, three moving contact is installed to the lateral wall symmetry of pivot, the box is close to and installs the ground contact on the inside wall of bottom one side, the box is close to and installs the static contact on the inside wall of top one side, the U-shaped plate is installed on the top of moving contact, it is equipped with the dwang to rotate on the inside wall of U-shaped plate, the mid-mounting of dwang has movable touch panel, movable touch panel's bilateral symmetry is equipped with two springs, the spring is around establishing on the dwang, and its both ends are fixed with the inside wall of movable touch panel and U. According to the scheme, through the arrangement of each structure, when the moving contact is in contact with the grounding contact and the moving contact is in contact with the static contact, the moving contact can be in close contact in a flexible contact mode, a gap is not generated between the moving contact and the grounding contact or the static contact, the contact point is guaranteed to be stable, and therefore the stability of a circuit is guaranteed.

Description

Novel three-position switch

Technical Field

The utility model relates to a three station switch technical field especially relates to a novel three station switches.

Background

In a power distribution system, a three-position switch is formed by organically combining an isolation load switch and a grounding switch, wherein the isolation load switch is a switch device which is used for switching on, carrying and switching off current under normal conditions and can carry and switch on and off short-circuit current, and the insulation requirement specified by the isolation switch is met at the opening position; the grounding switch is used for a mechanical switching device for grounding a loop. The isolation load switch and the grounding switch commonly share a moving contact, and the isolation load switch and the grounding switch are combined together to be called a three-position switch.

In the prior art, three-position switches generally have the following disadvantages: the moving contact of the switch is in rigid contact with the grounding contact and the static contact when in contact, and the contact point of the switch is easy to cause the rebound of the moving contact and the grounding contact after the rotating shaft rotates, and the rebound of the moving contact and the static contact causes the stable contact and causes the circuit abnormity, so the existing three-station switch needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel three-position switch.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel three-station switch, the power distribution box comprises a box body, the box internal rotation is equipped with the pivot, three moving contact is installed to the lateral wall symmetry of pivot, install the ground contact on the inside wall that the box is close to bottom one side, the box is close to and installs the static contact on the inside wall of top one side, the U-shaped plate is installed on the top of moving contact, it is equipped with the dwang to rotate on the inside wall of U-shaped plate, the mid-mounting of dwang has movable contact panel, movable contact panel's bilateral symmetry is equipped with two springs, the spring is around establishing on the dwang, and its both ends are fixed with movable contact panel and U.

Preferably, the rotating shaft is rotatably connected with a side plate of the box body through a bearing.

Preferably, one side of the movable contact plate is in contact with the end of the grounding contact, and the other side of the movable contact plate is in contact with the end of the static contact.

Compared with the prior art, the beneficial effects of the utility model reside in that:

according to the scheme, through the arrangement of each structure, when the moving contact is in contact with the grounding contact and the moving contact is in contact with the static contact, the moving contact can be in close contact in a flexible contact mode, a gap is not generated between the moving contact and the grounding contact or the static contact, the contact point is guaranteed to be stable, and therefore the stability of a circuit is guaranteed.

Drawings

Fig. 1 is a schematic view of the overall structure of a novel three-position switch provided by the present invention;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a top view of the novel three-position switch provided by the utility model.

In the figure: the device comprises a box body 1, a rotating shaft 2, a moving contact 3, a grounding contact 4, a static contact 5, a U-shaped plate 6, a movable contact plate 7, a rotating rod 8 and a spring 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a novel three-position switch, including box 1, the internal rotation of box 1 is equipped with pivot 2, three moving contact 3 is installed to the lateral wall symmetry of pivot 2, install ground contact 4 on the box 1 is close to the inside wall of bottom one side, install static contact 5 on the box 1 is close to the inside wall of top one side, U-shaped plate 6 is installed on the top of moving contact 3, it is equipped with dwang 8 to rotate on the inside wall of U-shaped plate 6, the mid-mounting of dwang 8 has movable touch panel 7, the bilateral symmetry of movable touch panel 7 is equipped with two springs 9, spring 9 is around establishing on dwang 8, and its both ends are fixed with movable touch panel 7 and U-shaped plate 6's.

The rotating shaft 2 is rotatably connected with a side plate of the box body 1 through a bearing.

One side of the movable contact plate 7 is contacted with the end part of the grounding contact 4, and the other side of the movable contact plate 7 is contacted with the end part of the static contact 5.

In the utility model, the rotating shaft 2 is externally connected with a driving mechanism, when the rotating shaft 2 rotates anticlockwise, the moving contact 3, the U-shaped plate 6 and the movable contact plate 7 are driven to rotate, and the movable contact plate 7 is gradually contacted with the grounding contact 4, and after the rotating shaft 2 stops rotating, the spring 9 is twisted, and the elastic force of the spring 9 can cause the movable contact plate 7 to be in close contact with the grounding contact 4;

when the rotating shaft 2 rotates clockwise, the moving contact 3, the U-shaped plate 6 and the movable contact plate 7 are driven to rotate, the movable contact plate 7 is gradually contacted with the static contact 5, the spring 9 is twisted after the rotating shaft 2 stops rotating, and the elastic force of the spring 9 can urge the movable contact plate 7 to be tightly contacted with the static contact 5;

the utility model has the advantages of simple structure, through the direct contact with moving contact 3 and ground contact 4 or static contact 5, change movable contact 7 and ground contact 4 or static contact 5's flexonics into to with the help of the elasticity that spring 9 was applyed movable contact 7, can ensure the compactness of contact.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel three-position switch comprises a box body (1) and is characterized in that a rotating shaft (2) is rotationally arranged in the box body (1), three moving contacts (3) are symmetrically arranged on the side wall of the rotating shaft (2), a grounding contact (4) is arranged on the inner side wall of the box body (1) close to the bottom, a static contact (5) is arranged on the inner side wall of one side of the box body (1) close to the top end, a U-shaped plate (6) is arranged at the top end of the moving contact (3), a rotating rod (8) is rotatably arranged on the inner side wall of the U-shaped plate (6), a movable contact plate (7) is arranged in the middle of the rotating rod (8), two springs (9) are symmetrically arranged on two sides of the movable contact plate (7), the springs (9) are wound on the rotating rod (8), and two ends of the U-shaped plate are respectively fixed with the inner side walls of the movable contact plate (7) and the U-shaped plate (6).

2. A novel three-position switch according to claim 1, characterized in that the rotating shaft (2) is rotatably connected with the side plate of the box body (1) through a bearing.

3. A novel three-position switch according to claim 1, characterized in that one side of the movable contact plate (7) is in contact with the end of the grounding contact (4), and the other side of the movable contact plate (7) is in contact with the end of the static contact (5).