Metal inductive switch

Abstract

The utility model provides a metal induction switch, relates to the technical field of mechanical switches, and solves the technical problems that an induction mechanism in the prior art is tedious in structure, large in occupied space, high in manufacturing cost and limited in use. According to the utility model, the metal sliding part is arranged at the lower part of the button, the button is pressed to drive the metal sliding part to move downwards along the guide channel, and after the metal sensor senses the metal sliding part, non-contact inductive conduction of a corresponding circuit is realized; the metal inductive switch is simple in overall structure and reasonable in design, does not need to occupy extra space, reduces the production cost to a certain extent, and is good in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical switches, in particular to a metal induction switch. Background Art

[0002] Keyboard switches are the main component of mechanical keyboards, and the quality of keyboard switches has a great impact on the keyboard. With the popularity of mechanical keyboards, people have put forward more and more requirements on keyboard switches, especially the feel of keyboard switches.

[0003] Each key of the mechanical keyboard is composed of an independent keyboard switch, which includes a base and a fixing seat. A mechanical shaft and a spring are arranged in a cavity formed by buckling the base and the fixing seat together.

[0004] The sensing mechanism of keyboard switches is mostly achieved by welding a Hall switch on the base, inserting a magnet on the mechanical shaft, and driving the magnet close to or away from the Hall switch through the mechanical shaft to achieve conduction or disconnection. However, this has the following technical problems: the sensing mechanism has a complicated structure, occupies a large space, has a high manufacturing cost, and has limitations in use.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a metal induction switch to solve the technical problems of the induction mechanism in the prior art, such as the complicated structure, large space occupation, high manufacturing cost and limited use. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The utility model provides a metal induction switch, comprising a base and a button, wherein a guide column is arranged on the base, a guide channel is opened at the center of the guide column, a metal sensor is arranged below the base, and the lower part of the button is a metal sliding part, and the metal sliding part can slide back and forth along the guide channel to approach or move away from the metal sensor to realize the conduction or disconnection of the corresponding circuit.

[0009] Preferably, it also includes an upper cover, which is detachably buckled on the base and forms a cavity between the upper cover and the base for the button to slide. In the cavity, the button passes through the top of the upper cover, and the metal sliding part is embedded in the guide channel. External force drives the metal sliding part to slide back and forth along the guide channel.

[0010] Preferably, a spring is arranged between the base and the button, a first end of the spring is connected to the metal sliding part, and a second end of the spring is connected to the guide column.

[0011] Preferably, a sliding structure is provided on two parallel side walls of the button, and a slideway matched with the sliding structure is provided on the base.

[0012] Preferably, the sliding structure comprises a sliding column and a silicone member, the sliding column is arranged on two parallel side walls of the button, and the silicone member is sleeved on the sliding column. During the sliding process, the silicone member abuts against the slideway.

[0013] Preferably, it also includes a spring structure, the button has a third side wall located between two parallel side walls, a boss is arranged on the third side wall, the spring structure includes a fixing part and an elastic part, a fixing part installation groove is arranged on the inner side wall of the base, the fixing part installation groove is plugged into the fixing part, the elastic part is arranged on the upper part of the fixing part and bent toward the boss, and the elastic claw of the elastic part is located on the moving path of the boss.

[0014] Preferably, a PCB board is arranged below the base, a through hole is opened in the center of the PCB board for the metal sliding part to pass through, and the metal sensor is arranged on the bottom surface of the PCB board and is arranged around the outer periphery of the through hole.

[0015] Preferably, the metal sliding portion comprises a positioning column and a metal piece, the positioning column is arranged at the center position of the button, and the positioning column is detachably connected to the metal piece.

[0016] Preferably, the metal part comprises a metal sleeve, and the metal sleeve is sleeved on the positioning column.

[0017] Preferably, the metal part comprises a metal column, the positioning column is provided with a positioning groove, and the metal column is embedded in the positioning groove.

[0018] The preferred technical solution of the utility model can also produce at least the following technical effects:

[0019] The utility model effectively avoids the technical problems of the induction mechanism existing in the prior art, such as the complicated structure, large space occupied, high manufacturing cost and limited use. The utility model provides a metal induction switch, including a base and a button, a guide column is arranged on the base, a guide channel is opened in the center of the guide column, a metal sensor is arranged below the base, and the lower part of the button is a metal sliding part, which can slide back and forth along the guide channel to approach or move away from the metal sensor to realize the conduction or disconnection of the corresponding circuit. The utility model sets the lower part of the button as the metal sliding part, and presses the button to drive the metal sliding part to move downward along the guide channel. After the metal sensor senses the metal sliding part, the non-contact induction conduction of the corresponding circuit is realized. Compared with the combination of a magnet and a Hall switch, the metal induction switch of the utility model has a simple overall structure, a reasonable design, does not require additional space, reduces the production cost to a certain extent, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a metal induction switch, a PCB board and a metal inductor provided by the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a PCB board and a metal sensor of a metal induction switch provided by the utility model in a disassembled state;

[0023] Figure 3 This is a schematic diagram of the structure of a metal induction switch provided by the utility model in a disassembled state;

[0024] Figure 4 This is a structural schematic diagram of a button of a metal induction switch provided by the utility model;

[0025] Figure 5 A structural schematic diagram of another metal sliding part of a metal induction switch provided by the utility model.

[0026] In the figure:

[0027] 1. Base; 11. Guide column; 111. Guide channel; 12. Slideway; 13. Fixing part installation slot;

[0028] 2. Button; 21. Metal sliding part; 211. Positioning column; 2111. Positioning groove; 212. Metal sleeve; 213. Metal column; 22. Sliding column; 221. Silicone component mounting groove; 23. Silicone component; 24. Boss; 25. Fixing part; 26. Elastic part; 261. Elastic claw; 3. Upper cover; 4. PCB board; 41. Through hole; 5. Metal sensor; 6. Spring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0030] The utility model provides a metal induction switch, comprising a base and a button, wherein a guide column is arranged on the base, a guide channel is opened at the center of the guide column, a metal sensor is arranged below the base, and the lower part of the button is a metal sliding part, which can slide back and forth along the guide channel to approach or move away from the metal sensor to realize the conduction or disconnection of the corresponding circuit.

[0031] The utility model sets the lower part of the button as a metal sliding part, and pressing the button drives the metal sliding part to move downward along the guide channel. After the metal sensor senses the metal sliding part, the non-contact inductive conduction of the corresponding circuit is realized. Compared with the combination of magnet and Hall switch, the metal induction switch of the utility model has a simple overall structure, reasonable design, no need for additional space, and a certain degree of reduction in production cost, and good practicality. Among them, the specific working principle of the metal sliding part, the metal sensor and the control circuit conduction and disconnection is the existing technology, and no further description is made here.

[0032] Furthermore, the guide channel is a structure that runs through both ends, and a protrusion can be set on the inner wall of the guide channel, which extends axially parallel to the guide channel to reduce the contact area between the metal sliding part and the guide channel during relative sliding, thereby improving the sliding smoothness of the metal sliding part.

[0033] As an optional embodiment, it also includes an upper cover, which is detachably buckled on the base and forms a cavity for the button to slide between the upper cover and the base. In the cavity, the button passes through the top of the upper cover, and the metal sliding part is embedded in the guide channel. External force drives the metal sliding part to slide back and forth along the guide channel.

[0034] Furthermore, first fasteners are respectively arranged on two parallel side walls in the outer side wall of the base, and a second fastener engaged with the first fastener is arranged on the upper cover. Through the engagement of the first fastener and the second fastener, the upper cover and the base are fastened and connected, which is convenient for assembly and disassembly, and prevents foreign matter from entering the cavity, affecting the use or causing damage to the button, prolonging the service life of the button, and ensuring that the metal induction switch can operate stably for a long time. Among them, the first fastener and the second fastener adopt the existing technology, which will not be described in detail here.

[0035] As an optional implementation, a spring is arranged between the base and the button, a first end of the spring is connected to the metal sliding part, and a second end of the spring is connected to the guide column.

[0036] Furthermore, the first end of the spring is sleeved with the metal sliding part, and the second end of the spring is sleeved with the guide column.

[0037] The spring can provide a reset force for the button. Pressing the button drives the metal sliding part to move downward along the guide channel. After the metal sensor senses the metal sliding part, the corresponding circuit is turned on. At this time, the spring is in a compressed state.

[0038] When the external force disappears, the reset action of the spring drives the button to automatically reset upward, so that the metal sliding part is away from the metal sensor, thereby disconnecting the corresponding circuit.

[0039] As an optional implementation, a sliding structure is provided on two parallel side walls of the button, and a slideway matched with the sliding structure is provided on the base.

[0040] The symmetrically arranged sliding structure can slide back and forth along the slideway. Through the sliding cooperation between the sliding structure and the slideway, the button will not produce displacement of different angles during the sliding process, thereby ensuring balance and stability during the button pressing process.

[0041] As an optional implementation, the sliding structure includes a sliding column and a silicone member, the sliding column is arranged on two parallel side walls of the button, and the silicone member is sleeved on the sliding column. During the sliding process, the silicone member abuts against the slideway.

[0042] Furthermore, the sliding column is arranged vertically and parallel to the side wall, and an annular silicone component installation groove is opened along the circumference of the sliding column. The silicone component is an annular structure and is sleeved in the silicone component installation groove, thereby improving the connection stability and reliability between the silicone component and the sliding column.

[0043] Pressing the button drives the sliding column and the silicone part to move downward along the slide. As the silicone part deforms due to the contact with the slide, it plays a certain buffering role, improves the pressing feel, and is more comfortable to use.

[0044] As an optional embodiment, it also includes a spring structure, the button has a third side wall located between two parallel side walls, a boss is arranged on the third side wall, the spring structure includes a fixing part and an elastic part, a fixing part installation groove is arranged on the inner side wall of the base, the fixing part installation groove is plugged into the fixing part, the elastic part is arranged on the upper part of the fixing part and bent toward the boss, and the elastic claw of the elastic part is located on the moving path of the boss.

[0045] Furthermore, the elastic member has an elastic claw that bends and extends toward the boss, and the side of the boss close to the elastic claw bends and protrudes toward the elastic claw. The boss can squeeze the elastic claw to deform during the downward movement. The elastic member has a hollow structure, and the rebound force of the spring sheet without a hollow structure is reduced, which effectively reduces the friction between the elastic member and the boss, thereby making the button feel smoother.

[0046] Since the elastic claw is located on the moving path of the boss, pressing the button drives the boss to move downward. The boss can touch and push the elastic claw of the elastic member during the movement. The elastic claw of the elastic member can provide a certain resistance to the boss. At this time, the elastic claw of the elastic member is squeezed by the boss and deformed. When the external force disappears, the spring and the elastic claw of the elastic member work together to reset the button, driving it to move upward and reset quickly. When the button moves up or down, the finger feels strong to produce a paragraph feel.

[0047] A strip-shaped friction strip is arranged between the fixing piece and the fixing piece installation groove to increase the friction force between the fixing piece and the fixing piece installation groove, and the connection is more stable and firm.

[0048] As an optional implementation, a PCB board is arranged below the base, a through hole is opened in the center of the PCB board for the metal sliding part to pass through, and the metal sensor is arranged on the bottom surface of the PCB board and is arranged around the outer periphery of the through hole.

[0049] When the button is in a non-use state, the metal sliding portion is away from the metal sensor, and at this time, the corresponding circuit is in a disconnected state.

[0050] When external force drives the button to move downward, the spring is in a compressed state, the metal sliding part moves downward along the guide channel and passes through the through hole, the metal sensor senses the metal sliding part, making the corresponding circuit conductive, and at the same time, the boss touches and pushes the elastic claw of the elastic part as the button moves downward, producing a sense of paragraph.

[0051] When the external force disappears, the resetting action of the spring and the elastic claw of the elastic member drives the button to automatically reset upward, and the metal sliding part moves upward along the guide channel and disengages from the through hole, so that the metal sliding part is away from the metal sensor, thereby disconnecting the corresponding circuit.

[0052] As an optional implementation, the metal sliding part includes a positioning column and a metal piece, the positioning column is arranged at the center position of the button, and the positioning column and the metal piece are detachably connected.

[0053] As an optional implementation, the metal part includes a metal sleeve, and the metal sleeve is arranged on the positioning column.

[0054] A metal sleeve can be sleeved on the existing positioning column of the button to obtain a metal sliding part, without the need for an additional sensing structure. The structure is simple, the design is reasonable, the production cost is reduced to a certain extent, and the practicability is good.

[0055] As an optional implementation, the metal piece includes a metal column, a positioning groove is formed on the positioning column, and the metal column is embedded in the positioning groove.

[0056] The metal column and the positioning column are embedded in each other to improve the connection stability and reliability between the metal column and the positioning column, thereby ensuring that the metal induction switch can operate stably for a long time.

[0057] Embodiment 1:

[0058] like Figure 1-4 As shown, the utility model provides a metal induction switch, including a base 1 and a button 2. A guide column 11 is provided on the base 1, and a guide channel 111 is opened at the center of the guide column 11. A metal sensor 5 is provided below the base 1. The lower part of the button 2 is a metal sliding part 21. The metal sliding part 21 can slide back and forth along the guide channel 111 to approach or move away from the metal sensor 5 to realize the conduction or disconnection of the corresponding circuit.

[0059] The utility model sets the lower part of the button 2 as a metal sliding part 21, and pressing the button 2 drives the metal sliding part 21 to move downward along the guide channel 111. After the metal sensor 5 senses the metal sliding part 21, non-contact inductive conduction of the corresponding circuit is achieved. Compared with the combination of a magnet and a Hall switch, the metal induction switch of the utility model has a simple overall structure and a reasonable design, does not require additional space, reduces production costs to a certain extent, and has good practicality.

[0060] Furthermore, the guide channel 111 is a structure that runs through both ends, and a protrusion can be set on the inner wall of the guide channel 111, which extends axially parallel to the guide channel 111, thereby reducing the contact area between the metal sliding part 21 and the guide channel 111 during relative sliding, thereby improving the sliding smoothness of the metal sliding part 21.

[0061] As an optional embodiment, it also includes an upper cover 3, which is detachably buckled on the base 1 and forms a cavity for the button 2 to slide between the upper cover 3 and the base 1. In the cavity, the button 2 passes through the top of the upper cover 3, and the metal sliding part 21 is embedded in the guide channel 111. External force drives the metal sliding part 21 to slide back and forth along the guide channel 111.

[0062] Furthermore, first fasteners are respectively provided on two parallel side walls of the outer side wall of the base 1, and a second fastener engaged with the first fastener is provided on the upper cover 3. The upper cover 3 and the base 1 are fastened together by the engagement of the first fastener and the second fastener, so that the assembly and disassembly are convenient, and foreign matter is prevented from entering the cavity, affecting the use or causing damage to the button 2, extending the service life of the button 2, and ensuring that the metal induction switch can operate stably for a long time. Among them, the first fastener and the second fastener adopt the existing technology, which will not be described in detail here.

[0063] As an optional implementation, a spring 6 is disposed between the base 1 and the button 2 , a first end of the spring 6 is connected to the metal sliding portion 21 , and a second end of the spring 6 is connected to the guide column 11 .

[0064] Furthermore, the first end of the spring 6 is sleeved with the metal sliding portion 21 , and the second end of the spring 6 is sleeved with the guide column 11 .

[0065] The spring 6 can provide a reset force for the button 2. Pressing the button 2 drives the metal sliding part 21 to move downward along the guide channel 111. After the metal sensor 5 senses the metal sliding part 21, the corresponding circuit is turned on. At this time, the spring 6 is in a compressed state.

[0066] When the external force disappears, the reset action of the spring 6 drives the button 2 to automatically reset upward, so that the metal sliding part 21 is away from the metal sensor 5, and the corresponding circuit is disconnected.

[0067] As an optional implementation, a sliding structure is provided on two parallel side walls of the button 2 , and a slideway 12 adapted to the sliding structure is provided on the base 1 .

[0068] The symmetrically arranged sliding structure can slide back and forth along the slideway 12. Through the sliding cooperation between the sliding structure and the slideway 12, the button 2 will not produce displacements of different angles during the sliding process, thereby ensuring the balance and stability of the button 2 during the pressing process.

[0069] As an optional implementation, the sliding structure includes a sliding column 22 and a silicone member 23 . The sliding column 22 is disposed on two parallel side walls of the button 2 . The silicone member 23 is sleeved on the sliding column 22 . During the sliding process, the silicone member 23 abuts against the slideway 12 .

[0070] Furthermore, the sliding column 22 is arranged vertically and parallel to the side wall, and an annular silicone component 23 mounting groove 221 is opened along the circumference of the sliding column 22. The silicone component 23 is an annular structure and is sleeved in the silicone component 23 mounting groove 221, thereby improving the connection stability and reliability between the silicone component 23 and the sliding column 22.

[0071] Pressing the button 2 drives the sliding column 22 and the silicone member 23 to move downward along the slide 12. Since the silicone member 23 abuts against the slide 12 and deforms, it plays a certain buffering role, improves the pressing feel, and is highly comfortable to use.

[0072] As an optional implementation, Figure 3 , 4 As shown, it also includes a spring structure. The button 2 has a third side wall located between the two parallel side walls. A boss 24 is arranged on the third side wall. The spring structure includes a fixing member 25 and an elastic member 26. A fixing member mounting groove 13 is arranged on the inner side wall of the base 1. The fixing member mounting groove 13 is plugged into the fixing member 25. The elastic member 26 is arranged on the upper part of the fixing member 25 and bent toward the boss 24. The elastic claw 261 of the elastic member 26 is located on the moving path of the boss 24.

[0073] Furthermore, the elastic member 26 has an elastic claw 261 that bends and extends toward the boss 24, and the side of the boss 24 close to the elastic claw 261 bends and protrudes toward the elastic claw 261. The boss 24 can squeeze the elastic claw 261 to deform during the downward movement. The elastic member 26 has a hollow structure, and the rebound force of the spring sheet without a hollow structure is reduced, which effectively reduces the friction between the elastic member 26 and the boss 24, so that the pressing feel of the button 2 is smoother.

[0074] like Figure 4 As shown, since the elastic claw 261 is located on the moving path of the boss 24, pressing the button 2 drives the boss 24 to move downward. During the movement, the boss 24 can touch and push the elastic claw 261 of the elastic member 26. The elastic claw 261 of the elastic member 26 can increase a certain resistance for the boss 24. At this time, the elastic claw 261 of the elastic member 26 is squeezed by the boss 24 and deformed.

[0075] When the external force disappears, the spring 6 and the elastic claw 261 of the elastic member 26 work together to reset the button 2 to move upward quickly and reset. When the button 2 moves upward or downward, the finger feels stronger to produce a paragraph feel.

[0076] A strip-shaped friction strip is provided between the fixing member 25 and the fixing member installation groove 13 to increase the friction force between the fixing member 25 and the fixing member installation groove 13, so that the connection is more stable and firm.

[0077] As an optional implementation, Figure 1 ,2 As shown, a PCB board 4 is arranged below the base 1 , a through hole 41 is opened at the center of the PCB board 4 for the metal sliding part 21 to pass through, and a metal sensor 5 is arranged on the bottom surface of the PCB board 4 and is arranged around the outer periphery of the through hole 41 .

[0078] When the button 2 is in a non-use state, the metal sliding portion 21 is away from the metal sensor 5 , and at this time, the corresponding circuit is in a disconnected state.

[0079] When the button 2 is driven downward by external force, the spring 6 is in a compressed state, the metal sliding part 21 moves downward along the guide channel 111 and passes through the through hole 41, and the metal sensor 5 senses the metal sliding part 21, so that the corresponding circuit is turned on. At the same time, the boss 24 touches and pushes the elastic claw 261 of the elastic member 26 as the button 2 moves downward, generating a sense of paragraph.

[0080] When the external force disappears, the resetting action of the spring 6 and the elastic claw 261 of the elastic member 26 drives the button 2 to automatically reset upward, and the metal sliding part 21 moves upward along the guide channel 111 and disengages from the through hole 41, so that the metal sliding part 21 is away from the metal sensor 5, thereby disconnecting the corresponding circuit.

[0081] As an optional implementation, the metal sliding portion 21 includes a positioning column 211 and a metal piece. The positioning column 211 is disposed at the center of the button 2 , and the positioning column 211 is detachably connected to the metal piece.

[0082] As an optional implementation, the metal piece includes a metal sleeve 212 , and the metal sleeve 212 is sleeved on the positioning column 211 .

[0083] Furthermore, the metal sleeve 212 can be configured as a cylindrical structure with two ends penetrated according to usage requirements, or the metal sleeve 212 can be configured as a cylindrical structure with a top open and a bottom closed.

[0084] The metal sleeve 212 can be sleeved on the positioning column 211 of the existing button 2 to obtain the metal sliding part 21, without the need for an additional sensing structure. The structure is simple, the design is reasonable, the production cost is reduced to a certain extent, and the practicability is good.

[0085] Embodiment 2:

[0086] The difference between this embodiment 2 and embodiment 1 is that: Figure 5 As shown, the metal piece includes a metal column 213 . A positioning groove 2111 is formed on the positioning column 211 , and the metal column 213 is embedded in the positioning groove 2111 .

[0087] The metal column 213 is embedded in the positioning column 211 , thereby improving the connection stability and reliability between the metal column 213 and the positioning column 211 , thereby ensuring that the metal induction switch can operate stably for a long time.

[0088] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0089] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0090] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "an example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0092] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A metal induction switch, characterized in that: The invention comprises a base and a button, wherein a guide column is arranged on the base, a guide channel is opened at the center of the guide column, a metal sensor is arranged below the base, and the lower part of the button is a metal sliding part, which can slide back and forth along the guide channel to approach or move away from the metal sensor to realize the conduction or disconnection of the corresponding circuit.

2. A metal induction switch according to claim 1, characterized in that: It also includes an upper cover, which is detachably buckled on the base and forms a cavity between the upper cover and the base for the button to slide. In the cavity, the button passes through the top of the upper cover, and the metal sliding part is embedded in the guide channel. External force drives the metal sliding part to slide back and forth along the guide channel.

3. A metal induction switch according to claim 2, characterized in that: A spring is arranged between the base and the button, a first end of the spring is connected to the metal sliding part, and a second end of the spring is connected to the guide column.

4. A metal induction switch according to claim 3, characterized in that: The two parallel side walls of the button are provided with a sliding structure, and the base is provided with a slideway matched with the sliding structure.

5. A metal induction switch according to claim 4, characterized in that: The sliding structure includes a sliding column and a silicone member. The sliding column is arranged on two parallel side walls of the button. The silicone member is sleeved on the sliding column. During the sliding process, the silicone member abuts against the slideway.

6. The metal induction switch according to claim 1, characterized in that: It also includes a spring structure, the button has a third side wall located between two parallel side walls, a boss is arranged on the third side wall, the spring structure includes a fixing part and an elastic part, a fixing part installation groove is arranged on the inner side wall of the base, the fixing part installation groove is plugged into the fixing part, the elastic part is arranged on the upper part of the fixing part and bent toward the boss, and the elastic claw of the elastic part is located on the moving path of the boss.

7. The metal induction switch according to claim 1, characterized in that: A PCB board is arranged below the base, a through hole for the metal sliding part to pass through is opened at the center of the PCB board, and the metal sensor is arranged on the bottom surface of the PCB board and is arranged around the outer periphery of the through hole.

8. The metal induction switch according to claim 7, characterized in that: The metal sliding part comprises a positioning column and a metal piece. The positioning column is arranged at the center of the button, and the positioning column is detachably connected to the metal piece.

9. The metal induction switch according to claim 8, characterized in that: The metal part comprises a metal sleeve, and the metal sleeve is sleeved on the positioning column.

10. The metal induction switch according to claim 8, characterized in that: The metal piece comprises a metal column, a positioning groove is formed on the positioning column, and the metal column is embedded in the positioning groove.

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