Pressing mechanism capable of double breaking

Abstract

The utility model discloses a pressing mechanism capable of double breaking, which comprises a base, an upper lug plate and a lower lug plate are respectively mounted on the base, one end of each of the upper lug plate and the lower lug plate is provided with a static contact, a sliding groove is formed in the middle of the base, a push rod is mounted in the sliding groove in a sliding manner, and the push rod is connected with the upper lug plate and the lower lug plate. A containing groove is formed in the push rod in a penetrating mode, an upper movable contact piece and a lower movable contact piece are sequentially arranged in the containing groove from top to bottom in a sliding mode, a flexible connector is connected between the upper movable contact piece and the lower movable contact piece, insulation blocks are installed on the adjacent sides of the upper movable contact piece and the lower movable contact piece, a compression spring is arranged between the two insulation blocks, and the compression spring is connected with the upper movable contact piece and the lower movable contact piece in a sliding mode. According to the utility model, through the arrangement of the push rod, the pressure spring, the reset spring, the upper movable contact piece and the lower movable contact piece, different on-off states can be realized due to different pressing depths.

Description

Technical Field

[0001] This utility model relates to the field of push-button switch technology, specifically a press mechanism that can be dual-disconnected. Background Technology

[0002] A push-button switch is an electronic component that controls the on / off state of a circuit by manual pressing. It is widely used in industrial control, home appliances, automation equipment, communication systems and other fields.

[0003] The existing push-button switch mechanism cannot achieve different on / off states depending on the pressing depth. Utility Model Content

[0004] The purpose of this invention is to provide a dual-segmentable pressing mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-disconnectable pressing mechanism, comprising a base, on which an upper connecting piece and a lower connecting piece are respectively installed. One end of each of the upper and lower connecting pieces is provided with a stationary contact. A sliding groove is formed in the middle of the base, and a push rod is slidably installed inside the sliding groove. A receiving groove is formed through the push rod. An upper movable contact and a lower movable contact are slidably arranged from top to bottom inside the receiving groove. A flexible connection connects the upper and lower movable contacts. An insulating block is installed on the adjacent side of each of the upper and lower movable contacts. A compression spring is provided between the two insulating blocks. A return spring is provided between the bottom of the push rod and the sliding groove.

[0006] In a preferred embodiment of this invention, the spring constant of the return spring is greater than that of the compression spring.

[0007] As a preferred embodiment of this utility model, each of the two insulating blocks is provided with a positioning cylinder, and the two ends of the compression spring are respectively located inside the two positioning cylinders.

[0008] As a preferred embodiment of this utility model, the upper movable contact and the lower movable contact are provided with through holes, and one side of the insulating block is provided with a buckle that cooperates with the through holes.

[0009] As a preferred embodiment of this utility model, the upper movable contact and the lower movable contact are provided with limiting grooves, and the insulating block is provided with a limiting block that matches the limiting grooves.

[0010] As a preferred embodiment of this utility model, both the upper and lower movable contact pieces are provided with four protrusions, which are distributed in a rectangular shape and are all in close contact with the push rod.

[0011] As a preferred embodiment of this utility model, a fixed post is provided at the bottom of the inner wall of the slide groove, a groove is provided at the bottom of the push rod, one end of the return spring is installed in the groove, and the other end of the return spring is sleeved on the outside of the fixed post.

[0012] As a preferred embodiment of this utility model, the top and bottom of the receiving groove are provided with clearance grooves, the base is provided with two blocks, and the upper and lower movable contact pieces are provided with movable contacts.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the utility model, through the push rod, compression spring, return spring, upper moving contact piece and lower moving contact piece, can realize different on and off states with different pressing depths. The protrusions set up limit the upper moving contact piece and lower moving contact piece, making the upper moving contact piece and lower moving contact piece more stable during movement, thus ensuring the reliability of the pressing mechanism. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention in its initial state;

[0016] Figure 3 This is a cross-sectional view of the push rod after pressing.

[0017] Figure 4 This is a cross-sectional view of the present invention after the pressing and pushing rod has been deepened;

[0018] Figure 5 This is a schematic diagram of the structure of the upper movable contact, the lower movable contact, and the flexible connection of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the insulating block of this utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the push rod of this utility model;

[0021] Figure 8 This is a schematic diagram of the structure of the base of this utility model.

[0022] In the diagram: 1. Base; 2. Push rod; 3. Upper connecting piece; 4. Lower connecting piece; 5. Upper moving contact piece; 6. Lower moving contact piece; 7. Flexible connection; 8. Return spring; 9. Compression spring; 10. Insulating block; 11. Stationary contact; 12. Moving contact; 13. Through hole; 14. Limiting groove; 15. Protrusion; 16. Positioning cylinder; 17. Limiting block; 18. Buckle; 19. Clearance groove; 20. Receiving groove; 21. Stop block; 22. Slide groove; 23. Fixing post; 24. Groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 8 This utility model provides a technical solution: a dual-segmentable pressing mechanism, including a base 1, on which an upper connecting piece 3 and a lower connecting piece 4 are respectively installed. One end of each of the upper connecting piece 3 and the lower connecting piece 4 is provided with a stationary contact 11. A sliding groove 22 is formed in the middle of the base 1, which limits the movement of a push rod 2, ensuring that the push rod 2 can only move along the sliding groove 22. The push rod 2 is slidably installed inside the sliding groove 22. A receiving groove 20 is formed through the push rod 2. An upper movable contact 5 and a lower movable contact 6 are slidably arranged from top to bottom inside the receiving groove 20. A flexible connection 7, which is a soft copper wire, connects the upper movable contact 5 and the lower movable contact 6, providing electrical conductivity between them. A [missing information - likely a device or component] is installed on each adjacent side of the upper movable contact 5 and the lower movable contact 6. Insulating block 10 serves as insulation to prevent electrical conduction between upper movable contact 5 and lower movable contact 6 via compression spring 9. Compression spring 9 is provided between the two insulating blocks 10. A return spring 8 is provided between the bottom of push rod 2 and slide groove 22. In the initial state, return spring 8 will push push rod 2 upward, compression spring 9 is in a compressed state, lower movable contact 6 is separated from lower connecting piece 4, and the circuit is in an open state. When push rod 2 is pressed down, return spring 8 is compressed, compression spring 9 is reset and pushes lower movable contact 6 to move, lower movable contact 6 contacts lower connecting piece 4, and the circuit is in a closed state. When push rod 2 is pressed down further, compression spring 9 and return spring 8 are both compressed, and upper movable contact 5 is separated from upper connecting piece 3 under the action of push rod 2, and the circuit is in an open state.

[0025] Among them, the elastic coefficient of the return spring 8 is greater than that of the compression spring 9. In the initial state after assembly and without external force, the return spring 8 will push the push rod 2 upward because the elastic coefficient of the return spring 8 is greater than that of the compression spring 9. At this time, the compression spring 9 is compressed, and the lower moving contact 6 is separated from the lower connecting piece 4 and is in a disconnected state.

[0026] Each of the two insulating blocks 10 is provided with a positioning cylinder 16. The positioning cylinder 16 is used to limit the compression spring 9 and prevent the compression spring 9 from shifting during the extension and retraction process. The two ends of the compression spring 9 are located inside the two positioning cylinders 16 respectively.

[0027] The upper movable contact 5 and the lower movable contact 6 are provided with through holes 13. One side of the insulating block 10 is provided with a buckle 18 that cooperates with the through hole 13. The buckle 18 has a certain elasticity and is engaged in the through hole 13, thereby fixing the insulating block 10.

[0028] Among them, the upper movable contact 5 and the lower movable contact 6 are provided with limiting grooves 14, and the insulating block 10 is provided with a limiting block 17 that is adapted to the limiting groove 14. The limiting block 17 and the limiting groove 14 cooperate to limit the insulating block 10, so that the insulating block 10 is installed more firmly.

[0029] The upper movable contact 5 and the lower movable contact 6 are each provided with four protrusions 15. The protrusions 15 are used to limit the upper movable contact 5 and the lower movable contact 6, to prevent the upper movable contact 5 and the lower movable contact 6 from separating from the push rod 2, and also to ensure that the upper movable contact 5 and the lower movable contact 6 can only move along the push rod 2. The four protrusions 15 are distributed in a rectangular shape, and all four protrusions 15 are close to the push rod 2.

[0030] The bottom of the inner wall of the slide groove 22 is provided with a fixed post 23, and the bottom of the push rod 2 is provided with a groove 24. Both the fixed post 23 and the groove 24 are used to limit the return spring 8 and prevent the return spring 8 from shifting during the extension and retraction process. One end of the return spring 8 is installed in the groove 24, and the other end of the return spring 8 is sleeved on the outside of the fixed post 23.

[0031] The receiving groove 20 has clearance grooves 19 at both the top and bottom. The clearance grooves 19 are used to avoid the buckle 18 and prevent the buckle 18 from contacting the push rod 2. The base 1 has two blocks 21 inside. The blocks 21 are used to support and limit the upper moving contact 5 or the lower moving contact 6. Both the upper moving contact 5 and the lower moving contact 6 have moving contacts 12. The moving contacts 12 are used to contact the stationary contacts 11 to conduct electricity.

[0032] Specifically, in the initial state, and without external force, because the elastic coefficient of the return spring 8 is greater than that of the compression spring 9, the return spring 8 will push the push rod 2 upward. The push rod 2 will drive the lower movable contact 6 to move upward. Since the upper movable contact 5 is blocked by the upper stop block 21 and the upper connecting piece 3, the upper movable contact 5 will not move, and a certain gap will exist between the top of the receiving groove 20 and the upper movable contact 5. The lower movable contact 6 will also drive the insulating block 10 to move upward. Under the action of the two insulating blocks 10, the compression spring 9 is compressed. At the same time, after the lower movable contact 6 moves upward, it separates from the lower connecting piece 4. At this time, the circuit... In the disconnected state, when the push rod 2 is pressed, because there is a certain gap between the top of the receiving groove 20 and the upper movable contact 5, the push rod 2 cannot push the upper movable contact 5 downward. The downward movement of the push rod 2 will compress the return spring 8, and the compression spring 9 will return to its original position and push the lower movable contact 6 downward through the insulating block 10. The lower movable contact 6 contacts the lower connecting piece 4, and the circuit is in a closed state. When the push rod 2 is pressed further, the top of the receiving groove 20 contacts the upper movable contact 5, so that the push rod 2 will push the upper movable contact 5 downward. The upper movable contact 5 separates from the upper connecting piece 3, and the circuit is in the disconnected state again.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only 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.

[0034] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-disconnectable pressing mechanism, comprising a base (1), wherein an upper connecting piece (3) and a lower connecting piece (4) are respectively mounted on the base (1), and one end of each of the upper connecting piece (3) and the lower connecting piece (4) is provided with a stationary contact (11), characterized in that: A sliding groove (22) is provided in the middle of the base (1). A push rod (2) is slidably installed inside the sliding groove (22). A receiving groove (20) is provided through the push rod (2). An upper movable contact piece (5) and a lower movable contact piece (6) are slidably arranged from top to bottom inside the receiving groove (20). A flexible connection (7) is connected between the upper movable contact piece (5) and the lower movable contact piece (6). An insulating block (10) is installed on the adjacent side of the upper movable contact piece (5) and the lower movable contact piece (6). A compression spring (9) is provided between the two insulating blocks (10). A return spring (8) is provided between the bottom of the push rod (2) and the sliding groove (22).

2. The dual-segmentable pressing mechanism according to claim 1, characterized in that: The elastic coefficient of the reset spring (8) is greater than that of the compression spring (9).

3. The dual-segmentable pressing mechanism according to claim 1, characterized in that: Both insulating blocks (10) are provided with positioning cylinders (16), and the two ends of the compression spring (9) are respectively located inside the two positioning cylinders (16).

4. The dual-segmentable pressing mechanism according to claim 1, characterized in that: The upper movable contact (5) and the lower movable contact (6) are provided with through holes (13), and one side of the insulating block (10) is provided with a buckle (18) that cooperates with the through hole (13).

5. The dual-segmentable pressing mechanism according to claim 1, characterized in that: Limiting grooves (14) are provided on the upper movable contact (5) and the lower movable contact (6), and a limiting block (17) adapted to the limiting groove (14) is provided on the insulating block (10).

6. The dual-disconnectable pressing mechanism according to claim 1, characterized in that: Both the upper movable contact (5) and the lower movable contact (6) are provided with four protrusions (15), which are arranged in a rectangular shape and are all close to the push rod (2).

7. The dual-disconnectable pressing mechanism according to claim 1, characterized in that: The bottom of the inner wall of the slide (22) is provided with a fixed post (23), and the bottom of the push rod (2) is provided with a groove (24). One end of the return spring (8) is installed in the groove (24), and the other end of the return spring (8) is sleeved on the outside of the fixed post (23).

8. The dual-disconnectable pressing mechanism according to claim 1, characterized in that: The top and bottom of the receiving groove (20) are provided with clearance grooves (19), and the base (1) is provided with two blocks (21) respectively. The upper movable contact piece (5) and the lower movable contact piece (6) are provided with movable contact points (12).

Images