A safety push button switch

Abstract

The application discloses a safety switch with better hand feeling, waterproof and dustproof performance. The technical scheme comprises a base, a middle base arranged in the base, an upper cover arranged at the upper end of the base, a button arranged above the middle base, a first reset spring arranged between the button and the middle base, a blocking slider arranged at one side of the middle base, a third reset spring arranged at one side of the blocking slider, a first positioning table and an inclined surface arranged on the blocking slider, a magnetic attraction slider arranged on the base and capable of sliding up and down, a fourth reset spring arranged at the lower end of the magnetic attraction slider, and a first inclined surface push rod arranged below the magnetic attraction slider and used for pushing the inclined surface.

Description

Technical Field

[0001] This invention belongs to the field of switches, and particularly relates to a push-button switch. Background Technology

[0002] Traditional safety switches, such as the Chinese invention patent with publication number "CN120854204A" entitled "Mechanical Safety Lock," utilize a blocking component that can move between a first and a second position relative to the housing. Before the user inserts the start key into the housing, the blocking component is in the first position, positioned on the trigger path of the button component, preventing the button component from moving to the start position. This prevents the user from triggering the switch mechanism by pressing the button component, maintaining the electrical state of the electrical equipment and reducing the likelihood of accidental triggering, thus providing safety. However, this design has the following drawbacks: 1. The start key pushes the blocking component's push rod through an inclined surface, resulting in high resistance and a risk of water leakage at the push rod; 2. The circuit connection or disconnection is achieved through the interaction of moving and stationary contacts on a spring, which is prone to dust accumulation and significant mechanical wear. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a safety switch with better feel and waterproof and dustproof performance.

[0004] To solve the above problems, the technical solution adopted by the present invention includes: a base, a middle seat disposed within the base, an upper cover disposed at the upper end of the base, and a button disposed above the middle seat. A first return spring is provided between the button and the middle seat. A blocking slider is provided on one side of the middle seat, and a third return spring is provided on one side of the blocking slider. A first positioning platform and an inclined surface are provided on the blocking slider. A magnetic slider that slides up and down is provided on the base, and a fourth position spring and a first inclined surface push rod for pushing the inclined surface are provided at the lower end of the magnetic slider. An independently spaced lock hole is provided on one side of the base, and a magnetic key that engages with the magnetic slider is provided in the lock hole. A second positioning platform is provided on the button that positions and cooperates with the first positioning platform. The elastic force of the fourth position spring is greater than that of the third return spring.

[0005] The blocking slider is provided with a self-locking groove, and the button is provided with a self-locking rod that cooperates with the self-locking groove.

[0006] The bottom of the middle base is provided with a main PCB board, and a toggle switch is provided on one side of the main PCB board. The other side of the middle base is provided with a switch slider for driving the toggle switch on / off, and a second reset spring is provided on one side of the switch slider. A second inclined push rod is provided on one side of the button for pushing the switch slider to move.

[0007] The central base is equipped with a bracket, and the top of the bracket is provided with a light-emitting PCB board and a light-transmitting ring in sequence.

[0008] An outer sealing ring is provided between the top of the base and the upper cover, and an inner sealing ring extending out of the upper cover is provided at the center of the outer sealing ring. A button for pressing the button is provided on the inner sealing ring.

[0009] The center seat has guide grooves on both sides, and the button has a guide rail that guides and cooperates with the guide grooves.

[0010] The middle seat is provided with a first sliding groove that slides in conjunction with the blocking slider.

[0011] The main PCB board has pin terminals at the bottom, and the base has a connector socket at the bottom, with the contact end of the pin terminal extending into the connector socket.

[0012] The base is provided with a second groove that slides in conjunction with the magnetic slider.

[0013] The safety switch of the present invention has the following advantages: 1. It achieves contactless unlocking by using a magnetic key and a magnetic slider, and has the advantages of low resistance and good waterproof performance (achieved by using independently spaced keyholes); 2. The circuit is switched on and off by using a toggle switch and a button, which are relatively mature technologies, and have the advantages of good dustproof performance and long service life.

[0014] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the safety switch of the present invention; Figure 2 This is an exploded view of the safety switch of the present invention; Figure 3 This is a cross-sectional view of the safety switch of the present invention; Figure 4 , Figure 5 This is a schematic diagram of the internal structure of the safety switch of the present invention; Figure 6 This is a schematic diagram of the blocking slider of the present invention; Figure 7 This is a schematic diagram of the button structure of the present invention; Figure 8 This is a schematic diagram of the structure of the base of the present invention. Detailed Implementation

[0016] Reference Figure 1-8The safety switch of the present invention includes a base 1, a middle seat 2 disposed within the base 1, an upper cover 3 disposed on the upper end of the base 1, and a button 4 disposed above the middle seat 2. A first return spring 5 is provided between the button 4 and the middle seat 2. A blocking slider 10 is provided on one side of the middle seat 2, and a third return spring 11 is provided on one side of the blocking slider 10. A first positioning platform 13 and an inclined surface 14 are provided on the blocking slider 10. A magnetically attracted slider 15 that slides up and down is provided on the base 1 through a slider groove 34, and a fourth position spring 16 and a first inclined surface push rod 17 for pushing the inclined surface 14 are provided at the lower end of the magnetically attracted slider 15. An independently spaced keyhole 18 is provided on one side of the base 1, and a magnetically attracted key 19 that engages with the magnetically attracted slider 15 is provided in the keyhole 18. Typically, the magnetically attracted slider 15 is made of magnet, and the magnetically attracted key 19 is made of steel plate. A second positioning platform 20 is provided on the button 4 to engage with the first positioning platform 13, and the elastic force of the fourth position spring 16 is greater than that of the third return spring 11. When the magnetic key 19 is not inserted into the lock hole 18, under the action of the fourth spring 16, the first inclined push rod 17 pushes the blocking slider 10 forward, causing the first positioning platform 13 to abut against the second positioning platform 20, thus preventing the user from triggering the switch mechanism by pressing the button; when the magnetic key 19 is inserted into the lock hole 18, the magnetic energy drives the magnetic slider 15 to slide down, thereby the blocking slider 10 is reset under the action of the third reset spring 11, causing the first positioning platform 13 to move away from the second positioning platform 20, thus allowing the user to trigger the switch mechanism by pressing the button.

[0017] Preferably, the blocking slider 10 is provided with a self-locking groove 12, and the button 4 is provided with a self-locking rod 21 that cooperates with the self-locking groove 12. When the button 4 is pressed, the self-locking rod 21 enters the positioning part of the self-locking groove 12, thereby realizing the normal closing of the switching mechanism; when the button 4 is pressed again, the self-locking rod 21 leaves the positioning part of the self-locking groove 12, thereby realizing the opening of the switching mechanism. The working principle of the self-locking groove 12 and the self-locking rod 21 is the same as the self-locking structure principle of a traditional metal push-button switch, and will not be described in detail here.

[0018] Preferably, the bottom of the middle base 2 is provided with a main PCB board 6, and a toggle switch 7 is provided on one side of the main PCB board 6. The other side of the middle base 2 is provided with a switch slider 8 for turning the toggle switch 7 on / off, and a second return spring 9 is provided on one side of the switch slider 8. A second inclined push rod 22 is provided on one side of the button 4 for pushing the switch slider 8 to move. The toggle switch 7 is an electronic component that switches the circuit by turning the switch handle on or off, and is a known technology. Its typical structure mainly includes an iron shell, a plastic handle, terminals, an insulating base plate, contact chips, circular beads, a spring, and other components.

[0019] Preferably, the middle base 2 is provided with a bracket 23, and the top of the bracket 23 is provided with a light-emitting PCB board 24 and a light-transmitting ring 25 in sequence. The light-emitting PCB board 24 is electrically connected to the main PCB board 6 to realize the indicator function of the switch.

[0020] Preferably, an outer sealing ring 26 is provided between the top of the base 1 and the upper cover 3, and an inner sealing ring 27 extending out of the upper cover 3 is provided at the center of the outer sealing ring 26. A button 28 for pressing the button 4 is provided on the inner sealing ring 27. This further improves the waterproof performance of the switch.

[0021] Preferably, the middle seat 2 has guide grooves 29 on both sides, and the button 4 has a guide rail 30 that guides and cooperates with the guide grooves 29 to improve the stability of the button 4 sliding.

[0022] Preferably, the middle seat 2 is provided with a first groove 31 that slides in conjunction with the blocking slider 10 to improve the stability of the sliding of the blocking slider 10.

[0023] Preferably, the main PCB board 6 has a pin terminal 32 at its bottom, which is electrically connected to the toggle switch 7 via the main PCB board 6. The base 1 has a connector socket 33 at its bottom, and the contact end of the pin terminal 32 extends into the connector socket 32. In use: inserting an external connector into the connector socket 33 and connecting it to the pin terminal 32 enables circuit connection, facilitating wiring.

[0024] Preferably, the base 1 is provided with a second groove 34 that slides in conjunction with the magnetic slider 15 to improve the stability of the sliding of the magnetic slider 15.

[0025] The foregoing is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A safety push button switch, comprising a base (1), a middle seat (2) disposed within the base (1), an upper cover (3) disposed at the upper end of the base (1), and a button (4) disposed above the middle seat (2), wherein a first return spring (5) is provided between the button (4) and the middle seat (2), characterized in that: The middle seat (2) is provided with a blocking slider (10) on one side and a third return spring (11) on one side of the blocking slider (10). The blocking slider (10) is provided with a first positioning platform (13) and an inclined surface (14). The base (1) is provided with a magnetic slider (15) that slides up and down. The lower end of the magnetic slider (15) is provided with a fourth position spring (16) and a first inclined surface push rod (17) for pushing the inclined surface (14). The base (1) is provided with a lock hole (18) with independent intervals on one side and a magnetic key (19) that attracts the magnetic slider (15) is provided in the lock hole (18). The button (4) is provided with a second positioning platform (20) that positions and cooperates with the first positioning platform (13). The elastic force of the fourth position spring (16) is greater than that of the third return spring (11).

2. The safety switch according to claim 1, characterized in that: The blocking slider (10) is provided with a self-locking groove (12), and the button (4) is provided with a self-locking rod (21) that cooperates with the self-locking groove (12).

3. The safety switch according to claim 1, characterized in that: The bottom of the middle seat (2) is provided with a main PCB board (6), and a toggle switch (7) is provided on one side of the main PCB board (6). The other side of the middle seat (2) is provided with a switch slider (8) for turning the toggle switch (7) on / off, and a second reset spring (9) is provided on one side of the switch slider (8). A second inclined push rod (22) is provided on one side of the button (4) for pushing the switch slider (8) to move.

4. The safety switch according to claim 1, characterized in that: The middle seat (2) is provided with a bracket (23), and the top of the bracket (23) is provided with a light-emitting PCB board (24) and a light-transmitting ring (25) in sequence.

5. The safety switch according to claim 1, characterized in that: An outer sealing ring (26) is provided between the top of the base (1) and the upper cover (3), and an inner sealing ring (27) extending out of the upper cover (3) is provided in the center of the outer sealing ring (26). A button (28) for pressing the button (4) is provided on the inner sealing ring (27).

6. The safety switch according to claim 1, characterized in that: The middle seat (2) is provided with guide grooves (29) on both sides, and the button (4) is provided with a guide rail (30) that guides and cooperates with the guide grooves (29).

7. The safety switch according to claim 1, characterized in that: The middle seat (2) is provided with a first groove (31) that slides in cooperation with the blocking slider (10).

8. The safety switch according to claim 3, characterized in that: The main PCB board (6) has a pin terminal (32) at the bottom and a connector socket (33) at the bottom of the base (1). The contact end of the pin terminal (32) extends into the connector socket (32).

9. The safety switch according to claim 1, characterized in that: The base (1) is provided with a second groove (34) that slides in cooperation with the magnetic slider (15).

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