A switch contact mechanism and a push button switch

Abstract

The utility model provides a kind of switch contact mechanism, with such features, comprising: mounting seat, first contact unit and second contact unit, wherein, mounting seat includes main body frame and the shell being detachably arranged in the both sides of main body frame, shell and main body frame are enclosed to form accommodating cavity, first contact unit and second contact unit are respectively arranged in the accommodating cavity of the both sides of main body frame, for respectively with different external circuit connection, and control the on-off of corresponding circuit, the on-off state of first contact unit and second contact unit is opposite, first contact unit and second contact unit both have two elastic members, under the push of external control shaft, the on-off state of first contact unit and second contact unit switches and the two elastic members of each other are compressed, after the push of external control shaft is released, the two elastic members of each other reset drive first contact unit and second contact unit restore original on-off state.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, specifically to a switch contact mechanism and a push-button switch. Background Technology

[0002] A push-button switch is a control element that uses mechanical contacts to close or open a circuit. When a user presses the button, an internal elastic element moves the contacts to connect the circuit, allowing current to flow into the load; when the button is released, the contacts spring back to their original position, the circuit is closed, and the current is cut off.

[0003] In existing technology, push-button switches are electrically connected to the circuit via contact components to switch between on and off states. The contact components typically contain multiple contacts and a reset element to reset the contacts. When a single reset element resets a contact, unstable movement and contact oscillation can occur, leading to a noticeable sequence of contact disconnections. This poses a risk of arcing, which can cause high temperatures and burn out the contacts, resulting in switch damage. Furthermore, it can lead to poor contact between the contacts and the circuit, making it difficult to stably connect or disconnect the circuit, increasing circuit resistance, degrading contact performance, and shortening contact lifespan. In daily use, the individual reset element, due to wobbling, is constantly under friction, accelerating wear and aging, easily leading to failure and requiring frequent replacement and maintenance, thus increasing operating costs. Utility Model Content

[0004] This invention was developed to solve the above-mentioned problems, and its purpose is to provide a switch contact mechanism and a push-button switch.

[0005] This utility model provides a switch contact mechanism, characterized by comprising: a mounting base, a first contact unit, and a second contact unit. The mounting base includes a main frame and detachable outer shells disposed on both sides of the main frame. The outer shells and the main frame surround and form a receiving cavity. The first contact unit and the second contact unit are respectively disposed in the receiving cavities on both sides of the main frame, and are used to connect to different external circuits and control the on / off state of the corresponding circuits. The on / off states of the first contact unit and the second contact unit are opposite. Each of the first contact unit and the second contact unit has two elastic elements. Under the push of an external control shaft, the on / off states of the first contact unit and the second contact unit are switched and their respective two elastic elements are compressed. After the push of the external control shaft is released, their respective two elastic elements reset, causing the first contact unit and the second contact unit to return to their original on / off states.

[0006] The switch contact mechanism provided by this utility model may also have the following features: the first contact unit and the second contact unit each have: a pair of stationary contacts disposed on one side of the main frame; a transmission assembly including: a transmission shaft slidably connected to the main frame for moving under the drive of the control shaft; a pair of moving contacts corresponding to the pair of stationary contacts; and a pair of abutment springs symmetrically disposed on both sides of the transmission shaft for connecting the transmission shaft and the moving contacts. When the transmission shaft moves, the abutment springs drive the moving contacts to move from a state of contact with the stationary contacts to a state of separation from the stationary contacts, or from a state of separation from the stationary contacts to a state of contact with the stationary contacts.

[0007] The switch contact mechanism provided by this utility model may also have the following feature: the transmission component further includes two elastic elements, which are symmetrically arranged on both sides of the transmission shaft and located between the transmission shaft and the main frame.

[0008] The switch contact mechanism provided by this utility model may also have the following features: the transmission component further includes: a connecting plate, a pair of moving contacts respectively disposed on both sides of the connecting plate, a clearance channel opened in the middle of the connecting plate, a transmission shaft disposed at the clearance channel, protruding sections disposed at both ends of the clearance channel, abutting shafts disposed on both sides of the transmission shaft, and two abutting springs respectively disposed between the protruding sections and the abutting shafts that are close to each other, for moving the moving contacts by moving the connecting plate.

[0009] The switch contact mechanism provided by this utility model may also have the following features: limit blocks are provided on both sides of the transmission shaft, the elastic element is a return spring, two return springs are respectively provided between the limit blocks on both sides and the main frame, and the abutment shaft is located above the limit blocks.

[0010] The switch contact mechanism provided by this utility model may also have the following feature: the main frame is further provided with two movable limiting members, which correspond to the positions of a pair of moving contacts respectively, and are used to limit the movement stroke of the moving contacts.

[0011] The switch contact mechanism provided by this utility model may also have the following feature: the upper and lower sides of the main frame are provided with moving clearance holes, and the transmission shaft passes through the moving clearance holes on both sides.

[0012] The switch contact mechanism provided by this utility model may also have the following feature: the outer shell is made of transparent material and can be detachably snapped to the main frame by a splicing component.

[0013] This utility model also provides a push-button switch, which includes: at least one switch contact mechanism; a control shaft; and a control button, which is used to drive the control shaft to move.

[0014] The push button switch provided by this utility model may also have the following feature: a control push block is sleeved on the control shaft and abuts against the transmission shaft of the first contact unit and the second contact unit. By pressing the control button, the control push block is moved, and the on and off states of the first contact unit and the second contact unit are switched at the same time.

[0015] Functions and effects of utility models

[0016] The switch contact mechanism and push-button switch involved in this utility model have the following beneficial effects:

[0017] The switch contact mechanism of this utility model includes a mounting base, a first contact unit, and a second contact unit. The mounting base includes a main frame and detachable transparent shells disposed on both sides of the main frame, forming a receiving cavity with the transparent shells and the main frame. The first contact unit and the second contact unit are respectively disposed in the receiving cavities on both sides of the main frame. Under the push of an external control shaft, the on / off states of the first and second contact units are switched, and their respective two elastic elements are compressed. After the push of the external control shaft is released, the two elastic elements reset, causing the first and second contact units to return to their original on / off states. The presence of two elastic elements provides a smooth reset thrust, enabling stable reset of the first and second contact units. This solves the problem of wobbling when a single reset element is used, preventing poor contact between the first and second contact units and the circuit, ensuring stable circuit connection or disconnection, and increasing the stability of the switch contact mechanism during use. Furthermore, the simultaneous use of two reset elements results in greater stability during movement, significantly reducing wear, ensuring service life, eliminating the need for frequent replacement and maintenance, and lowering operating costs. Attached Figure Description

[0018] Figure 1 This is a perspective view of the push-button switch in an embodiment of this utility model.

[0019] Figure 2 This is a schematic diagram of the push-button switch in an embodiment of this utility model.

[0020] Figure 3 This is a perspective view of the switch contact mechanism in an embodiment of this utility model.

[0021] Figure 4 This is an exploded view of the switch contact mechanism in an embodiment of this utility model.

[0022] Figure 5 This is a schematic diagram of the first structure of the first contact unit in an embodiment of this utility model.

[0023] Figure 6 This is a schematic diagram of the second structure of the first contact unit in an embodiment of this utility model.

[0024] Figure 7 This is a schematic diagram of the transmission shaft in an embodiment of this utility model.

[0025] Figure 8 This is a schematic diagram of the connecting plate in an embodiment of this utility model.

[0026] Figure 9 This is a schematic diagram of the structure of the second contact unit in an embodiment of this utility model. Detailed Implementation

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically describe the switch contact mechanism and push button switch of this utility model.

[0029] Figure 1 This is a perspective view of the push-button switch in an embodiment of this utility model. Figure 2 This is a schematic diagram of the push-button switch in an embodiment of this utility model;

[0030] like Figure 1-2 As shown, this embodiment provides a push-button switch 1000 for energizing a circuit by pressing to provide a device start signal, including multiple switch contact mechanisms 600, a control shaft 601, and a control button 5.

[0031] Control button 5 is a push button used to move control shaft 601. Control push block 602 is sleeved on control shaft 601, and control push block 602 is I-shaped.

[0032] Multiple switch contact mechanisms 600 are arranged axially for connection to different external circuits. Driven by the control shaft 601, they switch the on / off states of different external circuits to provide equipment start signals. After the drive of the control shaft 601 is released, the original on / off state is restored.

[0033] Figure 3 This is a perspective view of the switch contact mechanism in an embodiment of this utility model. Figure 4This is an exploded view of the switch contact mechanism in an embodiment of this utility model.

[0034] like Figure 1-4 As shown, the switch contact mechanism 600 in this embodiment includes a mounting base, a first contact unit 612, and a second contact unit 613.

[0035] The mounting base includes a main frame 610 and detachable transparent outer shells 611 disposed on both sides of the main frame 610. The transparent outer shells 611 and the main frame 610 surround and form a receiving cavity, which is T-shaped and has a travel groove 6105 inside.

[0036] The shape of the transparent outer shell 611 matches the shape of the receiving cavity, and there are splicing parts 6111 on both sides. The four ends of the main frame 610 are provided with splicing grooves 6102, and the splicing parts 6111 of the transparent outer shell 611 are snapped into the splicing grooves 6102 on the same side.

[0037] The first contact unit 612 and the second contact unit 613 are respectively disposed in the receiving cavities on both sides of the main frame 610, and are used to connect to different external circuits and control the on / off state of the corresponding circuits. The on / off states of the first contact unit 612 and the second contact unit 613 are opposite, and both the first contact unit 612 and the second contact unit 613 have two elastic elements.

[0038] The main frame 610 has connecting channels 6103 on its upper and lower sides (based on the upper and lower sides). Figure 2 (View angle) is used to allow the connecting rod (not shown in the figure) to pass through and fix multiple switch contact mechanisms 600.

[0039] A through-passage 6104 is provided in the middle of the main frame 610 for the control shaft 601 to pass through. When pushed by the control shaft 601, the on / off states of the first contact unit 612 and the second contact unit 613 are switched, and their respective two elastic elements are compressed. After the push of the control shaft 601 is released, their respective two elastic elements reset, causing the first contact unit 612 and the second contact unit 613 to return to their original on / off states.

[0040] The main frame 610 has clearance holes 6101 on both the upper and lower sides for movement (based on the upper and lower sides). Figure 3 (Perspective).

[0041] The structures of the first contact unit 612 and the second contact unit 613 are basically the same. Here, the first contact unit 612 will be used as an example for detailed explanation.

[0042] Figure 5 This is a schematic diagram of the first structure of the first contact unit in an embodiment of this utility model. Figure 6 This is a schematic diagram of the second structure of the first contact unit in an embodiment of this utility model.

[0043] like Figure 5-6 As shown, the first contact unit 612 has: a pair of stationary contacts 6121, a transmission assembly 6122, and two movable limiting members 61226. The pair of stationary contacts 6121 are respectively disposed at the upper ends of one side of the receiving cavity, and are respectively connected to the external circuit through the energizing plate 61211.

[0044] The transmission assembly 6122 includes: a transmission shaft 61221, a pair of moving contacts 61222, a pair of abutment springs 61223, two elastic elements, and a connecting plate 61225.

[0045] The drive shaft 61221 passes through the clearance holes 6101 on both sides and is slidably connected to the main frame 610, and is used to move under the drive of the control shaft 601. One end of the drive shaft 61221 extends to the outside of the main frame 610.

[0046] like Figure 2 As shown, the I-shaped control push block 602 sleeved on the control shaft 601 abuts against the drive shaft 61221 of the first contact unit 612 and the second contact unit 613 on both sides. By pressing the control button 5, the control push block 602 is moved, and the on / off state of the first contact unit 612 and the second contact unit 613 is switched.

[0047] Figure 7 This is a schematic diagram of the transmission shaft in an embodiment of this utility model;

[0048] like Figure 7 As shown, the drive shaft 61221 has abutment shafts 61231 and limiting blocks 61229 on both sides, with the abutment shafts 61231 located above the limiting blocks 61229. The limiting blocks 61229 are horizontally positioned on the side near the bottom of the receiving cavity.

[0049] like Figure 4 As shown, a protrusion 61234 is also provided on the side of the drive shaft 61221 near the receiving cavity, located at the stroke groove 6105. The stroke groove 6105 is used to limit the movement distance of the drive shaft 61221 to limit the reset position of the drive shaft 61221.

[0050] A pair of moving contacts 61222 are respectively disposed on both sides of the connecting plate 61225, corresponding to the positions of a pair of stationary contacts 6121. In the first contact unit 612, the stationary contacts 6121 are located above the moving contacts 61222, and the top of the energizing plate 61211 is connected to the top wall of the receiving cavity.

[0051] Figure 8 This is a schematic diagram of the connecting plate in an embodiment of this utility model;

[0052] like Figure 8As shown, a clearance channel 61230 is provided in the middle of the connecting plate 61225, and the drive shaft 61221 is located at the clearance channel 61230. Protruding sections 61232 are provided at both ends of the clearance channel 61230.

[0053] A pair of abutment springs 61223 are symmetrically arranged on both sides of the drive shaft 61221. The two abutment springs 61223 are respectively arranged between the protruding section 61232 and the abutment shaft 61231 that are close to each other, and are used to drive the moving contact 61222 to move by moving the connecting plate 61225.

[0054] Specifically, in the initial state, the end of the abutment spring 61223 near the protruding section 61232 is lower than the end near the abutment shaft 61231, and the abutment spring 61223 is tilted 30°-45° relative to the horizontal plane.

[0055] When the drive shaft 61221 moves, it drives the moving contact 61222 to move through the abutment spring 61223, changing from a state separated from the stationary contact 6121 to a state abutting against the stationary contact 6121.

[0056] The two elastic elements are return springs 61224, which are respectively located between the two side limit blocks 61229 and the bottom of the receiving cavity.

[0057] Two movable limiters 61226 correspond to the positions of a pair of moving contacts 61222 respectively, and are used to limit the movement stroke of the moving contacts 61222.

[0058] In the first contact unit 612, two movable limiting members 61226 are respectively disposed on the lower sides of the connecting plate 61225. In the initial state, the top of the movable limiting member 61226 abuts against the bottom of the connecting plate 61225.

[0059] Figure 9 This is a schematic diagram of the structure of the second contact unit in an embodiment of this utility model.

[0060] like Figure 9 As shown, the structure of the second contact unit 613 is the same as that of the first contact unit 612 and will not be described again here. The structure that is different from that of the first contact unit 612 is as follows:

[0061] The stationary contact 6123 is located below the moving contact 61227, and the tops of the two energizing plates 61233 are located in the middle of the receiving cavity.

[0062] Two movable limiting members 61228 are respectively disposed on the upper sides of the connecting plate 61225. In the initial state, the movable limiting members 61228 are not in contact with the connecting plate 61225. The top of the movable limiting member 61228 is connected to the top wall of the receiving cavity.

[0063] When the drive shaft 61221 moves, it drives the moving contact 61227 to move through the abutting spring 61223, changing from a state of contact with the stationary contact 6123 to a state of separation from the stationary contact 6123.

[0064] Working principle:

[0065] The working principle of the first contact unit 612: where the up and down directions are based on Figure 5 Perspective.

[0066] Pressing control button 5 pushes control push block 602 and drive shaft 61221 downwards. Return spring 61224 begins to compress. The end of abutment spring 61223 in contact with drive shaft 61221 is compressed simultaneously with the downward movement of drive shaft 61221. Connecting plate 61225 remains in contact with the other end of the moving limit piece 61226 and abutment spring 61223, its position unchanged. Until abutment spring 61223 is fully compressed and its axial centerline shifts below connecting plate 61225, abutment spring 61223 releases, pushing connecting plate 61225 upwards rapidly. The contact between abutment spring 61223 and drive shaft 61221 remains unchanged. Under the force of abutment spring 61223, connecting plate 61225 moves rapidly upwards, causing moving contact 61222 on connecting plate 61225 to contact stationary contact 6121, thus connecting the circuit.

[0067] When the drive shaft 61221 loses external force, the return spring 61224 releases, pushing the drive shaft 61221 upward. The end of the abutment spring 61223 in contact with the drive shaft 61221 compresses as the drive shaft moves upward. The connecting plate 61225 remains in contact with the other end of the abutment spring 61223, and the moving contact 61222 remains in contact with the stationary contact 6121, its position unchanged. Until the abutment spring 61223 is fully compressed and its axial centerline shifts above the connecting plate 61225, the abutment spring 61223 releases, pushing the connecting plate 61225 downward rapidly. The other end remains in contact with the drive shaft 61221. Under the force of the abutment spring 61223, the connecting plate 61225 contacts the moving limiter 61226 and stops moving. Simultaneously, the contact between the moving contact 61222 and the stationary contact 6121 breaks, and the circuit is disconnected.

[0068] The working principle of the second contact unit 613: where the vertical direction is based on Figure 9 Perspective.

[0069] Pressing control button 5 pushes control push block 602 and drive shaft 61221 downwards. The return spring 61224 begins to be compressed. The end of the abutment spring 61223 that contacts the drive shaft 61221 is compressed as the drive shaft 61221 moves downwards. The connecting plate 61225 remains in contact with the other end of the abutment spring 61223. The moving contact 61227 remains in contact with the stationary contact 6123, and its position remains unchanged. The circuit is connected. Until the abutment spring 61223 is fully compressed and its axial centerline shifts to below the connecting plate 61225, the abutment spring 61223 releases and pushes the connecting plate 61225 to move upward rapidly. The contact between the other end and the drive shaft 61221 remains unchanged. Under the force of the abutment spring 61223, the connecting plate 61225 moves upward rapidly. After the connecting plate 61225 contacts the moving limit member 61228, it stops moving. At the same time, the contact between the moving contact 61227 and the stationary contact 6123 is broken, and the circuit is disconnected.

[0070] When the drive shaft 61221 loses external force, the return spring 61224 releases, pushing the drive shaft 61221 upward. The end of the abutment spring 61223 in contact with the drive shaft 61221 is compressed as the drive shaft 61221 moves upward. The connecting plate 61225 remains in contact with the other end of the moving limit member 61228 and the abutment spring 61223, its position unchanged. Until the abutment spring 61223 is fully compressed and its axial centerline shifts above the connecting plate 61225, the abutment spring 61223 releases, pushing the connecting plate 61225 downward rapidly. The other end remains in contact with the drive shaft 61221. Under the force of the abutment spring 61223, the connecting plate 61225 moves rapidly downward, causing the moving contact 61227 on the connecting plate 61225 to contact the stationary contact 6123, thus connecting the circuit.

[0071] Functions and effects of the embodiments

[0072] The switch contact mechanism and push-button switch according to this embodiment have the following beneficial effects:

[0073] The switch contact mechanism includes a mounting base, a first contact unit, and a second contact unit. The mounting base includes a main frame and detachable outer shells on both sides of the main frame, forming a receiving cavity. The first and second contact units are respectively located within the receiving cavities on both sides of the main frame. Driven by an external control shaft, the on / off states of the first and second contact units switch, and their respective two elastic elements are compressed. After the external control shaft is released, the two elastic elements reset, restoring the first and second contact units to their original on / off states. The presence of two elastic elements provides a smooth reset thrust, enabling stable reset of the first and second contact units. This solves the wobbling problem that occurs when a single reset element is used, preventing poor contact between the first and second contact units and the circuit, ensuring stable circuit connection and disconnection, and increasing the stability of the switch contact mechanism during use. Furthermore, the simultaneous use of two reset elements significantly reduces wear and tear, extending service life and eliminating the need for frequent replacement and maintenance, thus lowering operating costs.

[0074] Both the first and second contact units have a pair of stationary contacts, a pair of moving contacts, a drive shaft, and two elastic elements. The elastic elements are return springs, symmetrically arranged between the limiting blocks on both sides of the drive shaft and the main frame. This facilitates stable reset of the drive shaft and the pair of moving contacts after movement, preventing wear on the drive shaft due to shaking and friction with other components during reset. It also prevents a significant delay between the reset of the pair of moving contacts and the pair of stationary contacts, avoiding the risk of arcing. This ensures stable connection and disconnection between the pair of moving contacts and the pair of stationary contacts, guaranteeing the performance and service life of both. The main frame also contains two movable limiting elements, corresponding to the positions of the pair of moving contacts, to limit their travel.

[0075] The main frame has clearance holes on both the top and bottom sides for movement, and the drive shaft passes through the clearance holes on both sides to facilitate the movement of the drive shaft.

[0076] The transparent outer shell is detachably snapped onto the main frame via a splicing mechanism, facilitating disassembly for maintenance and replacement of components in both the first and second contact units. By using the transparent shell, users can visually inspect the components of both units without removing it, allowing for quick identification of the cause of any circuit malfunctions and subsequent corrective action. During daily use, the status of each component in both units can be monitored in real-time, enabling timely detection of wear and tear for maintenance or replacement, ensuring proper circuit continuity and enhancing the user experience. The first and second contact units connect to different external circuits and control their on / off states, allowing for simultaneous control of multiple circuits and increasing the functionality of the switch contact mechanism.

[0077] This embodiment also provides a push-button switch, including at least one switch contact mechanism, a control shaft, and a control button. A control push block is sleeved on the control shaft and abuts against the drive shaft of the first contact unit and the second contact unit. By pressing the control button, the control push block is moved, which can simultaneously switch the on and off states of the first contact unit and the second contact unit, facilitating the simultaneous control of different circuits.

[0078] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A switch contact mechanism, characterized in that, include: Mounting base, first contact unit and second contact unit The mounting base includes a main frame and detachable outer shells disposed on both sides of the main frame. The outer shells and the main frame together form a receiving cavity. The first contact unit and the second contact unit are respectively disposed in the receiving cavities on both sides of the main frame, and are used to connect to different external circuits and control the on / off state of the corresponding circuits. The on / off states of the first contact unit and the second contact unit are opposite. Both the first contact unit and the second contact unit have two elastic elements. Under the push of the external control shaft, the on / off states of the first contact unit and the second contact unit are switched and their respective two elastic elements are compressed. After the push of the external control shaft is released, the respective two elastic elements reset, causing the first contact unit and the second contact unit to return to their original on / off states.

2. The switch contact mechanism according to claim 1, Its features are: Both the first contact unit and the second contact unit have: A pair of stationary contacts are disposed on one side of the main frame; Transmission components, including: A drive shaft is slidably connected to the main frame and is used to move under the drive of the control shaft; A pair of moving contacts are provided corresponding to the pair of stationary contacts; A pair of abutment springs are symmetrically arranged on both sides of the drive shaft to connect the drive shaft and the moving contact. When the drive shaft moves, the moving contact is driven by the abutment spring to move from a state of contact with the stationary contact to a state of separation from the stationary contact, or from a state of separation from the stationary contact to a state of contact with the stationary contact.

3. The switch contact mechanism according to claim 2, characterized in that: in, The transmission assembly also includes: The two elastic elements are symmetrically arranged on both sides of the drive shaft, located between the drive shaft and the main frame.

4. The switch contact mechanism according to claim 3, characterized in that: in, The transmission assembly also includes: A connecting plate has a pair of moving contacts respectively disposed on both sides of it. A clearance channel is provided in the middle of the connecting plate, and the drive shaft is disposed within the clearance channel. The clearance channel has protruding sections at both ends, and the drive shaft has abutment shafts on both sides. Two abutment springs are respectively disposed between the protruding sections and the abutment shafts that are close to each other, and are used to drive the moving contact to move by moving the connecting plate.

5. The switch contact mechanism according to claim 4, characterized in that: in, Limiting blocks are also provided on both sides of the drive shaft, and the elastic element is a return spring. Two return springs are respectively disposed between the limiting blocks on both sides and the main frame. The abutment shaft is located above the limiting block.

6. The switch contact mechanism according to claim 2, characterized in that: in, The main frame also contains: Two movable limiters, each corresponding to the position of a pair of moving contacts, are used to limit the travel of the moving contacts.

7. The switch contact mechanism according to claim 2, characterized in that: in, The main frame has clearance holes on both the top and bottom sides, and the drive shaft passes through the clearance holes on both sides.

8. The switch contact mechanism according to claim 1, characterized in that: in, The outer shell is made of transparent material and is detachably snapped to the main frame via splicing components.

9. A push-button switch, characterized in that, include: At least one switch contact mechanism as described in any one of claims 1-8; as well as Control axis; The control button is a button used to move the control shaft.

10. The push-button switch according to claim 9, characterized in that: in, A control push block is sleeved on the control shaft and abuts against the transmission shaft of the first contact unit and the second contact unit. By pressing the control button, the control push block is moved, and the on and off states of the first contact unit and the second contact unit are switched at the same time.

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