Low-voltage power supply switch

Abstract

The utility model provides a switch for low-voltage power supply, which relates to the technical field of power switches and comprises a base, a wire inlet seat and a wire outlet seat are respectively mounted on the base, two knife switches electrically connected with the wire inlet seat are rotatably connected onto the wire outlet seat, one side of each knife switch is fixedly connected with a handle, and the other side of each knife switch is fixedly connected with a power switch. Fixing blocks are fixedly connected to the positions, located on the two sides of the wire outlet base, of the base respectively, rotating blocks are rotationally connected to the faces, back on to the wire outlet base, of the fixing blocks, a connecting rod penetrating through the handle is fixedly connected to the opposite faces of the two rotating blocks in a penetrating mode, a sliding base is slidably connected to the base, and the two vertical plates are driven to move through sliding of the sliding base. Through sliding connection of the vertical plate and the connecting rod, the connecting rod is driven to swing in the sliding process of the vertical plate, so that the handle is driven to swing and rotate while the two rotating blocks swing and rotate until the knife switch fixedly connected with the handle rotates to be separated from the wire inlet seat, the switch is closed under the guarantee that a person is away from the handle, and the safety of the person is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of power switches, in particular to a switch for low-voltage power supply. Background Art

[0002] Electricity is an energy source that uses electrical energy as its motive force. Usually, electricity is transmitted through transmission lines. In order to ensure the safety of electricity use during the transmission process, a leakage protection switch to prevent circuit overload is added between the electrical components and the circuit, and a low-voltage power supply switch is installed on the circuit for the convenience of equipment maintenance.

[0003] The common low-voltage power supply switch is a knife switch, which includes a porcelain base, an incoming line base, an outgoing line base, a knife switch and a handle. During the opening and closing process of this type of switch, the handle drives the knife switch to rotate in and out of the incoming line base, and a part of the knife switch is directly exposed to the field of vision. Moreover, because the handle is directly connected to the knife switch, people are likely to touch the surface of the knife switch when touching the handle, causing electric shock. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that a common low-voltage power supply switch in the prior art comprises a porcelain seat, an incoming line seat, an outgoing line seat, a knife and a handle, and during the opening and closing process of this type of switch, the handle drives the knife to rotate in and out of the incoming line seat, and a solid part of the knife is directly exposed to the field of vision, and because the handle is directly connected to the knife, people are prone to touch the surface of the knife when touching the handle, causing electric shock, and a low-voltage power supply switch is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a switch for low-voltage power supply, comprising a base, on which an incoming line seat and an outgoing line seat are respectively installed, the outgoing line seat is rotatably connected to two knife switches electrically connected to the incoming line seat, and one side of the two knife switches is fixedly connected to a handle, the base is respectively fixedly connected to fixed blocks on both sides of the outgoing line seat, the fixed block is rotatably connected to a rotating block on a side facing away from the outgoing line seat, and a connecting rod passing through the handle is fixedly connected to the opposite surfaces of the two rotating blocks, a sliding seat is slidably connected to the base, and a vertical plate symmetrically fixedly connected to the sliding seat is slidably connected to the surface of the connecting rod and used to drive the connecting rod to swing.

[0006] As a further solution of the utility model: the rotation point of the rotating block and the fixed block coincides with the rotation point of the switch and the outlet seat, and the rotation directions of the rotating block and the switch correspond.

[0007] As a further solution of the utility model: the side of the vertical plate in contact with the connecting rod is arranged in an inclined surface.

[0008] As a further solution of the utility model: the positions of the two fixing blocks and the two vertical plates correspond one to one, and springs are fixedly connected between adjacent fixing blocks and vertical plates.

[0009] As a further solution of the utility model: the slide seat is U-shaped, and the relative inner walls of the slide seat are slidably connected to a pair of opposite side edges of the base, a pair of opposite side edges of the base are respectively fixedly connected with slide rails, and the relative inner walls of the slide seat are respectively provided with slide grooves slidably connected to the surfaces of the slide rails.

[0010] As a further solution of the utility model: the cross section of the slide rail is L-shaped.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. During the use of the utility model, the two vertical plates are moved by the sliding of the slide seat, and the vertical plates are connected to the connecting rod through sliding, and the highest point of the hypotenuse of the vertical plates is higher than the height of the incoming line seat. Therefore, during the sliding of the vertical plates, after the connecting rod slides along the hypotenuse of the vertical plates to the highest point of the hypotenuse, it means that the knife switch is completely separated from the incoming line seat at this time. During the sliding of the vertical plates, the connecting rod is driven to swing, thereby realizing the swinging and rotation of the two rotating blocks and the swinging and rotation of the handle at the same time, until the knife switch fixedly connected to the handle rotates to separate from the incoming line seat, that is, the switch is closed while the personnel are kept away from the handle, thereby ensuring the safety of the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional structural schematic diagram of a low-voltage power supply switch is proposed for the utility model;

[0014] Figure 2 The utility model proposes a low voltage power supply switch Figure 1 A side view schematic diagram of the structure;

[0015] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0016] Legend: 1. Base; 2. Slide rail; 3. Slide seat; 4. Vertical plate; 5. Fixed block; 6. Spring; 7. Outlet seat; 8. Switch; 9. Inlet seat; 10. Handle; 11. Connecting rod; 12. Rotating block; 13. Slide groove. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0019] like Figure 1-3 As shown, a switch for low-voltage power supply comprises a base 1, on which an incoming line seat 9 and an outgoing line seat 7 are respectively mounted, two knife switches 8 electrically connected to the incoming line seat 9 are rotatably connected to the outgoing line seat 7, and a handle 10 is fixedly connected to one side of the two knife switches 8, fixed blocks 5 are respectively fixedly connected to the two sides of the outgoing line seat 7 on the base 1, a rotating block 12 is rotatably connected to the side of the fixed block 5 facing away from the outgoing line seat 7, a connecting rod 11 passing through the handle 10 is fixedly connected to the opposite surfaces of the two rotating blocks 12, a sliding seat 3 is slidably connected to the base 1, and a vertical plate 4 slidably connected to the surface of the connecting rod 11 and used to drive the connecting rod 11 to swing is symmetrically fixedly connected to the sliding seat 3.

[0020] In the above scheme, the base 1 is made of insulating material, and the incoming wire seat 9, the outgoing wire seat 7, the knife switch 8 and the handle 10 are all basic components of the existing low-voltage switch. The connection method with the wires and the transmission method of electricity are known in the prior art, and during use, the two vertical plates 4 are driven to move by the sliding of the slide seat 3, and the vertical plates 4 are connected to the connecting rod 11 through sliding. During the sliding process of the vertical plates 4, the connecting rod 11 is driven to swing, thereby realizing the swinging and rotation of the two rotating blocks 12 while driving the handle 10 to swing and rotate, until the knife switch 8 fixedly connected to the handle 10 rotates to separate from the incoming wire seat 9, that is, the switch is closed while the personnel are kept away from the handle 10, thereby ensuring the safety of the personnel.

[0021] As a further optimization scheme of the utility model, Figure 1 As shown, the rotation point of the rotating block 12 and the fixed block 5 coincides with the rotation point of the knife switch 8 and the outlet seat 7, and the rotation directions of the rotating block 12 and the knife switch 8 correspond. In this solution, by limiting the rotation point of the rotating block 12 and the knife switch 8, it is ensured that during the swinging and rotating process of the connecting rod 11, the rotating block 12 and the knife switch 8 maintain synchronous swinging and rotation.

[0022] As a further optimization scheme of the utility model, Figure 1 As shown, the side of the vertical plate 4 that contacts the connecting rod 11 is arranged in an inclined surface. In this solution, the highest point of the inclined side of the vertical plate 4 is higher than the height of the incoming line seat 9. Therefore, during the sliding process of the vertical plate 4, the connecting rod 11 slides along the inclined side of the vertical plate 4 to the highest point of the inclined side, which means that the switch 8 is completely separated from the incoming line seat 9 at this time.

[0023] As a further optimization scheme of the utility model, Figure 1As shown, the two fixed blocks 5 correspond to the number of positions of the two vertical plates 4, and springs 6 are fixedly connected between adjacent fixed blocks 5 and vertical plates 4. In this solution, the provided springs 6 ensure that the initial position of the vertical plates 4 is fixed, and through the springs 6, it is ensured that the vertical plates 4 will not shake on the base 1 during normal use of the device.

[0024] As a further optimization scheme of the utility model, Figure 1 and Figure 3 As shown, the slide 3 is U-shaped, and the relative inner walls of the slide 3 are slidably connected to a pair of opposite sides of the base 1, and the opposite sides of the base 1 are respectively fixedly connected with slide rails 2, and the relative inner walls of the slide 3 are respectively provided with slide grooves 13 slidably connected to the surfaces of the slide rails 2, and the cross-section of the slide rail 2 is L-shaped. In this solution, the L-shaped slide rail 2 is slidably connected to the slide groove 13, so as to ensure that the slide 3 always slides against the surface of the base 1.

[0025] Working principle: the transmission line is connected to the incoming line seat 9, the wires of the electrical equipment are connected to the outgoing line seat 7, and a leakage protection switch can be added in the line. Figure 1 When the power is turned off, the slide 3 is connected to the surface of the base 1 and slides along the length of the slide rail 2 through the sliding connection of the slide groove 13 and the slide rail 2. The spring 6 is stretched while sliding, and the connecting rod 11 slides on the bevel of the vertical plate 4. While the slide 3 drives the vertical plate 4 to move continuously, the connecting rod 11 rotates continuously due to the change in the height of the bevel of the vertical plate 4, and the rotation of the connecting rod 11 drives the rotating block 12 and the handle 10 to rotate until the switch 8 fixedly connected to the handle 10 rotates to disengage from the incoming line seat 9, thereby disconnecting the circuit.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A low-voltage power supply switch, comprising a base (1), on which an incoming wire seat (9) and an outgoing wire seat (7) are respectively mounted, and the outgoing wire seat (7) is rotatably connected to two switch blades (8) electrically connected to the incoming wire seat (9), and one side of the two switch blades (8) is fixedly connected to a handle (10), characterized in that: The base (1) is fixedly connected to fixed blocks (5) on both sides of the outlet seat (7), and a rotating block (12) is rotatably connected to a side of the fixed block (5) facing away from the outlet seat (7). A connecting rod (11) passing through a handle (10) is fixedly connected to the opposite sides of the two rotating blocks (12). The base (1) is slidably connected to a sliding seat (3), and a vertical plate (4) is symmetrically fixedly connected to the sliding seat (3) and is slidably connected to the surface of the connecting rod (11) and is used to drive the connecting rod (11) to swing.

2. The low voltage power supply switch according to claim 1, characterized in that: The rotation point of the rotating block (12) and the fixed block (5) coincides with the rotation point of the switch blade (8) and the outlet seat (7), and the rotation directions of the rotating block (12) and the switch blade (8) correspond.

3. The low voltage power supply switch according to claim 1, characterized in that: The side of the vertical plate (4) that contacts the connecting rod (11) is arranged in an inclined surface.

4. The low voltage power supply switch according to claim 1, characterized in that: The positions of the two fixed blocks (5) and the two vertical plates (4) correspond in number to each other, and springs (6) are fixedly connected between adjacent fixed blocks (5) and vertical plates (4).

5. The low voltage power supply switch according to claim 1, characterized in that: The slide seat (3) is arranged in a U shape, and the relative inner walls of the slide seat (3) are slidably connected to a pair of opposite side edges of the base (1), a pair of opposite side edges of the base (1) are respectively fixedly connected to the slide rails (2), and the relative inner walls of the slide seat (3) are respectively provided with slide grooves (13) slidably connected to the surfaces of the slide rails (2).

6. The low voltage power supply switch according to claim 5, characterized in that: The cross section of the slide rail (2) is L-shaped.

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