Button switch

Abstract

The utility model relates to a button switch. The technical problem to be solved by the utility model is to provide a button switch. According to the technical scheme, the button comprises a shell, a base, a first contact plate, a second contact plate, a button head, a rotating shaft piece, a circular contact piece and a reset spring, a shell installation cavity is formed in the shell and comprises a shell square base and a shell cylindrical base, a shell pressing hole is formed in the shell cylindrical base, a button head butt joint hole is formed in the button head, and a button head butt joint hole is formed in the button head. The button comprises a button bearing table and a button pressing column, button limiting blocks are arranged on the outer wall of the button bearing table around the arc at intervals, and button rotating teeth are arranged at the bottom of the button bearing table around the arc at intervals. The utility model has the advantages that after the button head is pressed, the rotating shaft piece is rotated and locked through rotation, so that the first contact plate and the second contact plate are connected through the circular contact piece, the circuit can be continuously kept to be connected after the button head is reset, the rotation locking action is more stable and reliable through the button rotating teeth, and false operation is not easy to occur.

Description

Technical Field

[0001] The utility model relates to a push button switch. Background Art

[0002] A push button switch is a common switch used to control the on / off of a circuit, and is widely used in various electrical equipment and mechanical control systems. Users operate the switch by pressing the button to complete the connection or disconnection of the circuit. After the existing push button switch is turned on by pressing, due to the action of the spring, the button automatically returns to its original position, and it cannot keep the circuit continuously connected. The stability and reliability of the button action are poor, and misoperation is likely to occur. Therefore, the existing push button switch is improved and optimized. Content of the Utility Model

[0003] To solve the above problems, the technical problem to be solved by the utility model is to provide a push button switch.

[0004] The technical solution adopted by the push button switch of the utility model is as follows: It is characterized by including a housing, a base, a first contact plate, a second contact plate, a button head, a rotating shaft member, a circular contact piece for connecting the first contact plate and the second contact plate, and a return spring. A housing installation cavity is provided inside the housing, which includes a housing square seat and a housing cylindrical seat. A vertically penetrating housing pressing hole is provided on the housing cylindrical seat. A button head docking hole is provided inside the button head, which includes a button receiving platform placed inside the housing installation cavity and a button pressing column penetrating through the housing pressing hole. Button limiting blocks are arranged at intervals around the arc on the outer wall of the button receiving platform, and button rotating teeth are arranged at intervals around the arc at the bottom of the button receiving platform. The rotating shaft member includes a rotating shaft boss and a rotating shaft column placed inside the button head docking hole. Rotating shaft driving blocks in contact with the button rotating teeth are arranged at intervals around the arc on the upper surface of the rotating shaft boss. The outer diameter of the rotating shaft driving block is larger than the outer diameter of the rotating shaft boss. The circular contact piece is sleeved on the rotating shaft boss. A return spring positioning hole is provided at the bottom of the rotating shaft boss. The upper end of the return spring abuts against the return spring positioning hole and its lower end abuts against the base;

[0005] A housing docking block arranged in an arc is provided at the housing pressing hole of the housing installation cavity. Docking block limiting notches for preventing the button limiting block and the rotating shaft driving block from rotating are arranged at intervals on the housing docking block. A docking block positioning groove for guiding the rotation of the rotating shaft driving block is provided on the housing docking block.

[0006] An in-place stop block for preventing the rotating shaft driving block from rotating excessively is provided at the end of the docking block positioning groove of the housing docking block.

[0007] The button rotating teeth are of a triangular structure, the rotating shaft driving blocks are of a wedge-shaped structure, and the number of the rotating shaft driving blocks is at least 3.

[0008] The outer wall of the rotating shaft boss is provided with a rotating shaft boss card slot for clamping the circular contact piece, and the bottom of the rotating shaft boss is provided with elastic openings of the rotating shaft boss at intervals around an arc for facilitating the loading of the circular contact piece.

[0009] It further includes an auxiliary spring. The auxiliary spring is sleeved on the rotating shaft boss card slot, with one end abutted against the rotating shaft boss and the other end abutted against the circular contact piece.

[0010] Both the first contact plate and the second contact plate include a contact plate outer connection part. The end of the contact plate outer connection part is vertically bent to form a contact plate middle connection part placed in the housing installation cavity. The contact plate middle connection part is sequentially bent to form a contact plate docking part parallel to the contact plate middle connection part, and the contact plate docking part is in contact with the circular contact piece.

[0011] The contact plate middle connection part is provided with a contact plate limiting notch. The bottom of the left and right ends of the housing square seat is provided with a square seat bayonet for clamping the contact plate limiting notch. The base is clamped below the housing, and the left and right ends thereof are provided with base pressing blocks docked with the square seat bayonets.

[0012] The advantages of the push-button switch of the present utility model are as follows: After pressing the button head and then rotating to lock the rotating shaft part, the circular contact piece connects the first contact plate and the second contact plate. After the button head is reset, the circuit can still be continuously connected. The rotation locking action is more stable and reliable through the button rotation teeth, and misoperation is not likely to occur. The auxiliary spring can provide a pressing force when the circular contact piece is in contact, making the contact closer and more reliable, and the safety is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0014] Figure 1 is a schematic structural diagram of the push-button switch of the present utility model;

[0015] Figure 2 is a half-sectional view of the push-button switch of the present utility model;

[0016] Figure 3 is an exploded view of the push-button switch of the present utility model;

[0017] Figure 4 is a schematic front structural diagram of the housing of the present utility model;

[0018] Figure 5 is a schematic back structural diagram of the housing of the present utility model;

[0019] Figure 6 is a schematic structural diagram of the button head of the present utility model;

[0020] Figure 7 is a front structural schematic diagram of the rotating shaft member of the present utility model;

[0021] Figure 8 is a back structural schematic diagram of the rotating shaft member of the present utility model;

[0022] Figure 9 is a structural schematic diagram of the first contact plate of the present utility model;

[0023] Figure 10 is a structural schematic diagram of the base of the present utility model. Specific embodiments

[0024] As Figures 1-10 shown, the push-button switch related to the present utility model includes a housing 1, a base 2, a first contact plate 3, a second contact plate 4, a button head 5, a rotating shaft member 6, a circular contact piece 7 for connecting the first contact plate 3 and the second contact plate 4, and a return spring 8. A housing installation cavity is provided in the housing 1, which includes a housing square seat 11 and a housing cylindrical seat 12. A vertically penetrating housing pressing hole 14 is provided on the housing cylindrical seat 12. A button head docking hole 21 is provided in the button head 5, which includes a button receiving platform 17 placed in the housing installation cavity and a button pressing column 18 penetrating through the housing pressing hole 14. Button limiting blocks 19 are arranged at intervals around the arc on the outer wall of the button receiving platform 17, and button rotating teeth 20 are arranged at intervals around the arc at the bottom of the button receiving platform 17. The rotating shaft member 6 includes a rotating shaft boss 23 and a rotating shaft column 24 placed in the button head docking hole 21. Rotating shaft driving blocks 25 in contact with the button rotating teeth 20 are arranged at intervals around the arc on the upper surface of the rotating shaft boss 23. The outer diameter of the rotating shaft driving blocks 25 is larger than the outer diameter of the rotating shaft boss 23. The circular contact piece 7 is sleeved on the rotating shaft boss 23. A return spring positioning hole 26 is provided at the bottom of the rotating shaft boss 23. The upper end of the return spring 8 abuts against the return spring positioning hole 26 and its lower end abuts against the base 2; a housing docking block 15 arranged in an arc is provided at the housing pressing hole 14 of the housing installation cavity. Docking block limiting notches 30 for preventing the button limiting blocks 19 and the rotating shaft driving blocks 25 from rotating are arranged at intervals on the housing docking block 15. A docking block positioning groove 31 for guiding the rotation of the rotating shaft driving blocks 25 is provided on the housing docking block 15. After pressing the button head 5 and then rotating to lock the rotation of the rotating shaft member 6, the circular contact piece 7 connects the first contact plate 3 and the second contact plate 4. The circuit can still be kept connected after the button head 5 is reset. The rotation of the rotating shaft member 6 is locked by driving the rotating shaft driving blocks 25 to rotate through the button rotating teeth 20, and the action is more stable and reliable, and it is not easy to malfunction.

[0025] The housing docking block 15 is provided with a position - reaching stop block 32 at the end of the docking block positioning groove 31 to prevent the rotating shaft driving block 25 from rotating excessively, which plays a role in prompting the rotation to reach the position. When the rotation reaches this position, the shaft member 6 has been locked, ensuring the continuous connection of the first contact plate 3 and the second contact plate 4.

[0026] The button rotation tooth 20 is of a triangular structure, the rotating shaft driving block 25 is of a wedge - shaped structure, and the number of the rotating shaft driving blocks 25 is at least 3, which further improves the accuracy and reliability of the action and is not prone to misoperation.

[0027] The outer wall of the rotating shaft boss 23 is provided with a rotating shaft boss card slot 34 for the circular contact piece 7 to be clamped. The bottom of the rotating shaft boss 23 is provided with rotating shaft boss elastic openings 35 spaced at intervals around an arc to facilitate the installation of the circular contact piece 7. The circular contact piece 7 can be clamped and installed conveniently and quickly and is not prone to falling off.

[0028] It further includes an auxiliary spring 9. The auxiliary spring 9 is sleeved on the rotating shaft boss card slot 34, one end of which abuts against the rotating shaft boss 23 and the other end abuts against the circular contact piece 7, providing a pressing force when the circular contact piece 7 makes contact, making the contact closer, more reliable, and safer.

[0029] Both the first contact plate 3 and the second contact plate 4 include a contact plate external connection part 38. The end of the contact plate external connection part 38 is vertically bent to form a contact plate middle connection part 39 placed in the housing installation cavity. The contact plate middle connection part 39 is bent in sequence to form a contact plate docking part 40 arranged parallel to the contact plate middle connection part 39. The contact plate docking part 40 is in contact with the circular contact piece 7, with firm installation, reliable limitation, not prone to shaking, and making the contact more stable.

[0030] The contact plate middle connection part 39 is provided with a contact plate limiting notch 41. The left and right bottom ends of the housing square seat 11 are provided with square seat bayonets 42 for the contact plate limiting notch 41 to be clamped. The base 2 is clamped below the housing 1, and its left and right ends are provided with base pressing blocks 43 docked with the square seat bayonets 42.

[0031] Operation process: Press the button head 5, which simultaneously drives the shaft member 6 to move downward, causing the rotating shaft driving block 25 and the button limiting block 19 to come out of the docking block limiting notch 30. At the same time, the circular contact piece 7 moves downward, making the first contact plate 3 and the second contact plate 4 connected. Rotate and press the button head 5, the button rotation tooth 20 rotates to drive the rotating shaft driving block 25 to rotate, so that the rotating shaft driving block 25 rotates in the docking block positioning groove 31. When it rotates to the position - reaching stop block 32, the rotating shaft driving block 25 stops rotating. Release the pressed button head 5, and due to the action of the return spring 8, the button limiting block 19 returns to the docking block limiting notch 30, while the rotating shaft driving block 25 keeps the circular contact piece 7 continuously connected due to the docking block positioning groove 31.

[0032] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model are all included within the protection scope of the present utility model.

Claims

1. A push-button switch, characterized in that: It includes a housing (1), a base (2), a first contact plate (3), a second contact plate (4), a button head (5), a rotating shaft member (6), a circular contact piece (7) for connecting the first contact plate (3) and the second contact plate (4), and a return spring (8). A housing installation cavity is provided in the housing (1), which includes a housing square base (11) and a housing cylindrical base (12). A vertically penetrating housing pressing hole (14) is provided on the housing cylindrical base (12). A button head docking hole (21) is provided in the button head (5), which includes a button receiving platform (17) placed in the housing installation cavity and a button pressing column (18) penetrating through the housing pressing hole (14). Button limiting blocks (19) are provided at intervals around the outer wall of the button receiving platform (17) in an arc shape, and button rotating teeth (20) are provided at intervals around the bottom of the button receiving platform (17) in an arc shape. The rotating shaft member (6) includes a rotating shaft boss (23) and a rotating shaft column (24) placed in the button head docking hole (21). Rotating shaft driving blocks (25) that are in contact with the button rotating teeth (20) are provided at intervals around the upper surface of the rotating shaft boss (23) in an arc shape. The outer diameter of the rotating shaft driving block (25) is larger than the outer diameter of the rotating shaft boss (23). The circular contact piece (7) is sleeved on the rotating shaft boss (23). A return spring positioning hole (26) is provided at the bottom of the rotating shaft boss (23). The upper end of the return spring (8) abuts against the return spring positioning hole (26) and its lower end abuts against the base (2). A housing docking block (15) arranged in an arc shape is provided at the housing pressing hole (14) of the housing installation cavity. Docking block limiting notches (30) for preventing the button limiting blocks (19) and the rotating shaft driving blocks (25) from rotating are provided at intervals on the housing docking block (15). A docking block positioning groove (31) for guiding the rotation of the rotating shaft driving block (25) is provided on the housing docking block (15).

2. The push-button switch according to claim 1, characterized in that: An in-place stop block (32) for preventing the rotating shaft driving block (25) from rotating excessively is provided at the end of the docking block positioning groove (31) of the housing docking block (15).

3. The push-button switch according to claim 1, wherein: The button rotating teeth (20) are of a triangular structure, the rotating shaft driving blocks (25) are of a wedge-shaped structure, and the number of the rotating shaft driving blocks (25) is at least 3.

4. The push-button switch according to claim 1, characterized in that: A rotating shaft boss card slot (34) for clamping the circular contact piece (7) is provided on the outer wall of the rotating shaft boss (23). Rotating shaft boss elastic openings (35) for facilitating the loading of the circular contact piece (7) are provided at intervals around the bottom of the rotating shaft boss (23) in an arc shape.

5. The push-button switch according to claim 4, wherein: An auxiliary spring (9) is further included. The auxiliary spring (9) is sleeved on the rotating shaft boss card slot (34), one end of which abuts against the rotating shaft boss (23) and the other end abuts against the circular contact piece (7).

6. The push-button switch according to claim 1, characterized in that: Both the first contact plate (3) and the second contact plate (4) include a contact plate outer connection part (38). The end of the contact plate outer connection part (38) is vertically bent to form a contact plate middle connection part (39) placed in the housing installation cavity. The contact plate middle connection part (39) is sequentially bent to form a contact plate docking part (40) arranged parallel to the contact plate middle connection part (39). The contact plate docking part (40) is in contact with the circular contact piece (7).

7. The push-button switch according to claim 6, wherein: The contact plate middle connection part (39) is provided with a contact plate limiting notch (41). The left and right bottom ends of the housing square seat (11) are provided with square seat clamping openings (42) for clamping the contact plate limiting notch (41). The base (2) is clamped below the housing (1), and its left and right ends are provided with base pressing blocks (43) docked with the square seat clamping openings (42).

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