Positive and negative universal power-off switch

Abstract

The utility model discloses a positive and negative general power-off switch, two electrode plates are symmetrically installed at the both sides of lower cover body, and the upper cover body is connected with the lower cover body and forms a sealed cavity, the spring, chuck and connecting plate are arranged from top to bottom in the sealed cavity, the both ends of connecting plate are slidably connected with two electrode plates, the chuck is clamped with the connecting plate, the both ends of spring are respectively abutted tightly with the upper cover body and chuck, the chuck is rotationally matched with the lower cover body, the knob is rotationally installed on the upper cover body, and the limiting column of knob is matched with the limiting slot of chuck, the screw is rotationally arranged on the lower cover body, and the screw is threadedly connected with the limiting column. The power-off switch changes the traditional structure, and the spring is changed from lower to upper, and is abutted tightly with the connecting plate downward to ensure the close cooperation of connecting plate and electrode plate, under the joint action of the depression of limiting column on the knob and the dead weight of electrode plate, even if the spring elasticity is weakened, it also can not affect the use effect of product, in addition, the knob is separately installed on the power-off switch, and the positioning of rotating dial is not affected by the spring.

Description

Technical Field

[0001] This utility model relates to the field of power switch technology, and in particular to a universal power-off switch for both positive and negative poles. Background Technology

[0002] The function of a power-off switch is to physically disconnect the battery from the circuit, providing emergency power-off protection and preventing battery depletion caused by static current. After the switch is disconnected, the battery's self-discharge rate can be reduced from 10-15% per month to 1-2%. In the existing technology, Chinese utility model patent CN222705358U, entitled "A Square Power-Off Switch," discloses a power-off switch where the contacts (connecting plates) rely on springs to abut against the electrode plates to ensure a tight fit. Furthermore, the rotation of the knob also depends on the spring. In other words, both power-on stability and gear shifting are limited by the spring; if the spring fails or its elasticity weakens, the switch's effectiveness cannot be guaranteed. There is an urgent need for a power-off switch with independent gear shifting and stable power supply. Utility Model Content

[0003] The purpose of this utility model is to provide a universal power-off switch for both positive and negative poles, so as to solve the problem that the power-on stability and shifting of existing power-off switches are limited by springs, and the switching effect cannot be guaranteed once the spring fails or the elastic force weakens.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A universal positive and negative power-off switch includes a knob, an upper cover, a spring, a chuck, a connecting plate, an electrode plate, and a lower cover. Two electrode plates are symmetrically mounted on both sides of the lower cover. The upper cover is connected to the lower cover and forms a sealed cavity. The spring, the chuck, and the connecting plate are arranged from top to bottom within the sealed cavity. The two ends of the connecting plate are slidably connected to the two electrode plates. The chuck is engaged with the connecting plate. The two ends of the spring respectively abut against the upper cover and the chuck. The chuck is rotatably engaged with the lower cover. The knob is rotatably mounted on the upper cover, and the limiting post of the knob is adapted to the limiting groove of the chuck. A screw is rotatably mounted on the lower cover, and the screw is threadedly connected to the limiting post.

[0005] A further technical solution is that the two ends of the connecting plate are set to be arc-shaped.

[0006] A further technical solution is that both the limiting post and the limiting groove are square structures.

[0007] A further technical solution is: the upper surface of the upper cover is uniformly provided with positioning grooves along its axial direction, and the knob is provided with a spring piece that matches the positioning groove.

[0008] A further technical solution is that an annular connector is provided at the outer end of the electrode plate.

[0009] A further technical solution is that the chuck is provided with an annular groove that matches the spring.

[0010] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: This utility model proposes a universal power-off switch for both positive and negative poles. This power-off switch changes the traditional structure, with the spring changing from bottom to top, pressing down against the connecting plate to ensure a tight fit between the connecting plate and the electrode plate. Under the combined action of the upper limit post of the knob pressing down and the weight of the electrode plate, even if the spring force weakens, it will not affect the product's performance. In addition, the knob is installed separately on the power-off switch, and the positioning of the rotation switch is not affected by the spring. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a universal positive and negative power-off switch according to this utility model.

[0012] Figure 2 This utility model Figure 1 A schematic diagram of the middle connecting plate.

[0013] Figure 3 This utility model Figure 1 A schematic diagram of the structure of a shrapnel.

[0014] Reference numerals: 1. Knob; 11. Spring; 2. Upper cover; 21. Positioning groove; 3. Spring; 4. Chuck; 41. Annular groove; 5. Connecting plate; 6. Electrode plate; 7. Lower cover; 8. Screw. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0021] This implementation example Figure 1 As shown, a universal positive and negative power-off switch includes a knob 1, an upper cover 2, a spring 3, a chuck 4, a connecting plate 5, an electrode plate 6, and a lower cover 7. Two electrode plates 6 are symmetrically installed on both sides of the lower cover 7. The upper cover 2 is connected to the lower cover 7 to form a sealed cavity. The spring 3, the chuck 4, and the connecting plate 5 are arranged from top to bottom in the sealed cavity. The two ends of the connecting plate 5 are slidably connected to the two electrode plates 6. The chuck 4 is engaged with the connecting plate 5. The two ends of the spring 3 abut against the upper cover 2 and the chuck 4, respectively. The chuck 4 is rotatably engaged with the lower cover 7. The knob 1 is rotatably installed on the upper cover 2, and the limiting post of the knob 1 is adapted to the limiting groove of the chuck 4. A screw 8 is rotatably installed on the lower cover 7, and the screw 8 is threadedly connected to the limiting post.

[0022] During assembly, first, fasten the two electrode plates 6 to appropriate positions on both sides of the lower cover 7 with screws. Then, snap the chuck 4 and connecting plate 5 together, ensuring that both ends of the connecting plate 5 can abut against the inner ends of the two electrode plates 6. Simultaneously, the bottom of the chuck 4 slides into the lower cover 7. Next, install the spring 3 on the chuck 4, and place the upper cover 2 onto the lower cover 7. Then, install the knob 1 on the upper cover 2. The limiting post of the knob 1 engages with the limiting groove of the chuck 4, pressing down on the chuck 4 and preventing its axial rotation. Finally, insert the screw 8 through the lower surface of the lower cover 7, with the inner end of the screw 8 connected to the knob 1. Ensure that the knob 1 does not detach from the upper cover 2 without hindering its rotation. During use, connect the positive and negative terminals of the power supply to the outer ends of the two electrode plates 6 respectively. Rotating the knob 1 controls the contact and disconnection of the connecting plate 5 with the two electrode plates 6.

[0023] Preferably, such as Figure 2 The two ends of the connecting plate 5 are set to be arc-shaped.

[0024] The arc-shaped end of the connecting plate 5 allows for a smoother fit with the two electrode plates 6.

[0025] Preferably, both the limiting post and the limiting groove are square structures.

[0026] Preferably, such as Figure 3 The upper surface of the cover 2 is uniformly provided with positioning grooves 21 along its axial direction, and the knob 1 is provided with a spring piece 11 that matches the positioning grooves 21.

[0027] The spring piece 11 and the positioning groove 21 are elastically engaged to prevent the knob from shaking after shifting, which would cause unstable power supply.

[0028] Preferably, an annular connector 61 is provided at the outer end of the electrode plate 6.

[0029] The ring connector 61 can better securely connect to the electrode post of the power supply.

[0030] Preferably, the chuck 4 is provided with an annular groove 41 that is adapted to the spring 3.

[0031] The annular groove 41 facilitates the installation and positioning of the spring 3.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A universal power-off switch for both positive and negative poles, characterized in that: The device includes a knob (1), an upper cover (2), a spring (3), a chuck (4), a connecting plate (5), electrode plates (6), and a lower cover (7). The two electrode plates (6) are symmetrically installed on both sides of the lower cover (7). The upper cover (2) is connected to the lower cover (7) and forms a sealed cavity. The spring (3), the chuck (4), and the connecting plate (5) are arranged from top to bottom in the sealed cavity. The two ends of the connecting plate (5) slide against the two electrode plates (6). The chuck (4) is engaged with the connecting plate (5), and the two ends of the spring (3) abut against the upper cover (2) and the chuck (4) respectively. The chuck (4) is rotatably engaged with the lower cover (7). The knob (1) is rotatably mounted on the upper cover (2), and the limiting post of the knob (1) is adapted to the limiting groove of the chuck (4). A screw (8) is rotatably provided on the lower cover (7), and the screw (8) is threadedly connected to the limiting post.

2. The universal power-off switch for both positive and negative poles according to claim 1, characterized in that: The two ends of the connecting plate (5) are set to be arc-shaped.

3. The universal power-off switch for both positive and negative poles according to claim 1, characterized in that: Both the limiting post and the limiting groove are square structures.

4. The universal power-off switch for both positive and negative poles according to claim 1, characterized in that: The upper surface of the upper cover (2) is uniformly provided with positioning grooves (21) along its axial direction, and the knob (1) is provided with a spring piece (11) that is compatible with the positioning grooves (21).

5. The universal power-off switch for both positive and negative poles according to claim 1, characterized in that: The outer end of the electrode plate (6) is provided with an annular connector (61).

6. The universal power-off switch for both positive and negative poles according to claim 1, characterized in that: The chuck (4) is provided with an annular groove (41) that is adapted to the spring (3).

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