CN210182261U - Spark-proof remote control switch - Google Patents

Abstract

The utility model relates to the technical field of household appliances, concretely relates to spark-proof remote switch. Including the casing, the static contact, the sparkproof moving contact, drive base and remote control unit install in the casing, the static contact includes the terminal, insulating cover and inlet, the inlet is cylindrical, the first end of inlet is connected with the terminal, insulating cover cup joints on the terminal and with the first end butt of inlet, the terminal is connected with the house service line, the sparkproof moving contact is installed on drive base, drive base is connected with remote control unit. The utility model discloses a substantive effect is: the electric spark can be avoided at the moment of switching on and off the switch, and the voltage regulating function is realized; the structure is not easy to block, and the state is maintained without energy consumption.

Description

Spark-proof remote control switch

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to spark-proof remote switch.

Background

With the gradual maturity of the internet of things technology, the types of household intelligent appliances are enriched, and in the regional power distribution network, data acquisition is carried out on the electricity consumption of the household appliances so as to be beneficial to the optimal configuration decision of the regional power distribution network, and the technical possibility is also provided. Because the current household intelligent appliances are not popular enough, most household appliances are still common appliances, and in order to complete the task of collecting power consumption data in a household with the household intelligent appliances and the common appliances, a remote switch and an intelligent socket with the functions of collecting voltage and current and communicating need to be developed. The remote control switch can remotely control the work or the closing of the electric appliance. At the moment of opening and closing, electric arcs can be generated, electric sparks are caused, and certain potential safety hazards exist. Particularly, the remote control is adopted, so that the person is not on the spot and can not timely treat the possible fire. In addition, after an actuating mechanism of the remote switch is used for a long time, the problem of blocking easily occurs, so that the remote control of the electric appliance is blocked and the electric appliance cannot be opened or closed.

Chinese patent CN 101888120B, published 2012, 8, 29, is a household electrical control switch with intelligent function, which has the characteristics of remote load control, manual switch on-off state correction and low energy consumption. Comprises a switch box, a switch panel with a plurality of keys and a circuit board provided with a communication unit, a control unit, a power module and a drive circuit; the switch box is provided with a plurality of actuating mechanisms, and two lead contacts of each actuating mechanism are respectively connected with a load live wire and a power supply live wire; the actuating mechanism comprises an electromagnet and a self-locking button switch which is contacted with one end of a movable iron core of the electromagnet, and the other end of the movable iron core of the electromagnet is contacted with the bottom end of a key; the driving circuit is an instantaneous driving circuit. The movement direction of a button head on the self-locking button switch is the same as that of the movable iron core of the electromagnet, and is basically consistent with the swinging direction of the button. The electric energy can be saved to a certain extent, but the electric spark eliminating device does not have the function of eliminating electric sparks, and has potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the existing remote control switch does not have the function of eliminating electric sparks, and has the technical problem of potential safety hazard. The remote control switch has the advantages that electric sparks at the moment of switching on and off of the switch can be eliminated, the structure is not easy to be stuck, the state is maintained, and energy is not consumed.

In order to solve the technical problem, the utility model discloses the technical scheme who takes does: the utility model provides a remote control switch of spark, includes casing, static contact, spark prevention moving contact, drive base and remote control unit install in the casing, the static contact includes terminal, insulating cover and inlet, the inlet is cylindrical, and the first end of inlet is connected with the terminal, insulating cover cup joints on the terminal and with the first end butt of inlet, the terminal is connected with the house lead wire, the spark prevention moving contact is installed on the drive base, the drive base is connected with the remote control unit. The remote control unit can receive the instruction of the control terminal to complete the work of the remote switch.

Preferably, the device also comprises a measuring module and a communication module, wherein the measuring module and the communication module are both arranged in the shell, the measuring module is used for measuring the potential and the current of the lead-in head, and the measuring module and the communication module are both connected with the remote control unit. The measuring module can measure the power and the real-time current of the access switch, and the communication module can send the collected data to the control terminal. The remote switch can be turned on or off remotely, and has an additional function of detecting current and voltage on line.

Preferably, the spark-proof moving contact comprises a moving contact head sleeve and a rotor, the moving contact head sleeve is a hollow cylinder, the diameter of the inner wall of the moving contact head sleeve is equal to the diameter of the outer circle of the leading-in head, a guide groove is formed in the outer wall of the contact head sleeve, a guide rod matched with the guide groove is installed on the driving base, an internal thread is formed in the inner wall of the first end of the moving contact head sleeve, a hollow part is formed in the inner wall of the moving contact head sleeve, the moving contact head sleeve is close to the circumference of the second end of the moving contact head sleeve, a leading-out head is installed in the hollow part, the leading-out head is in an inwards concave arc shape and is flush with the inner wall of the moving contact head sleeve, the leading-out head is connected with a load, an.

Preferably, the moving contact sleeve is internally provided with an air exhaust plate, a spring sleeve and a buckle, the air exhaust plate is cylindrical, the outer wall of the air exhaust plate is abutted against the inner wall of an inner hole of the moving contact sleeve, the spring sleeve is a hollow cylinder with one open end, the closed end of the spring sleeve is concentrically hinged with the first end of the rotor and is relatively fixed with the rotor along the axis direction of the rotor, the spring is sleeved in the spring sleeve, the first end of the spring is fixedly connected with the closed end of the spring sleeve, the second end of the spring is fixedly connected with the end face of the air exhaust plate close to the first end of the moving contact sleeve, the moving contact sleeve is provided with an air vent hole on the side of the air exhaust plate close to the first end of the moving contact sleeve, the buckle is embedded and arranged on the inner wall of the moving contact sleeve close to the second end, the inner wall of the moving contact, the middle part of the buckle is provided with a release buckle. The rotor can promote the movable contact headgear forward when rotating, the work of buckle is detained and is driven the air exhaust plate and move forward and extension spring together, the leading-in head stretches into in the movable contact headgear gradually, when the leading-in head is about to the contact of pigtail, the release of leading-in head will extrusion buckle is detained, make the work of buckle detain and break away from the contact with the air exhaust plate, the air exhaust plate moves rapidly under the spring tension effect, form vacuum at the air exhaust plate leading-in head side, and then produce the inside air current of flow direction movable contact headgear in the gap between leading-in head and the movable contact headgear, can play the effect of inhaling the arc extinguishing, and can avoid inwards inhaling the spark that produces, movable contact headgear and buckle are made by ceramic material, can avoid producing outside visible electric spark.

Preferably, the drive base includes base member and a plurality of electromagnetism utmost point, the base member is one end confined ring shape, and open the base member up end has the hinge hole, and a plurality of electromagnetism utmost point is evenly installed along circumference to base member middle part inner wall, a plurality of electromagnetism utmost point all is connected with the remote control unit. Present remote control switch adopts the contact of electro-magnet and armature control contact and breaks away from, has the shortcoming that the card pause appears easily in the maintenance state power consumption, the utility model discloses in adopt the electromagnetic pole that the circumference was arranged, attract the permanent magnet on the rotor, control electromagnetic pole switches on in turn and both can make the rotor continuously rotate, combines the contact that screw thread transmission structure can realize the contact and break away from, and the screw thread helix lead angle is less than the self-locking angle, therefore does not need the power consumption in the maintenance state.

Preferably, a resistance layer is processed on the cylindrical surface of the leading-in head close to the second end, the resistance layer is formed by doping quinquevalent elements with silicon, and the doping concentration of the resistance layer is gradually increased along the direction far away from the second end. The over-resistance layer enables the load to be pre-electrified before being switched on and then to be in contact with the metal contact area with low resistance, so that the current at the moment of switching on can be reduced, particularly the load with the inductor can enable the inductor to generate impedance when being pre-electrified, and the phenomenon that the electric spark is generated due to overlarge instantaneous current is avoided.

Preferably, the moving contact sleeve is made of a ceramic material.

Preferably, the moving contact sleeve and the buckle are both made of ceramic materials.

The working method of the spark-proof remote switch comprises the following steps: A1) when the movable contact head sleeve is separated from the leading-in head, the switch is in a disconnected state, after the remote control unit receives a switch opening instruction, the remote control unit controls the electromagnetic poles to be conducted in turn to generate an electromagnetic field to drive the rotor to rotate, the first end of the rotor is connected with the movable contact head sleeve through threads, a guide rod and a guide groove are arranged between the movable contact head sleeve and the driving base, the movable contact head sleeve can be pushed forwards when the rotor rotates, the working buckle of the buckle drives the air exhaust plate to move forwards together and stretch the spring, and the leading-in head gradually stretches into the movable contact head sleeve; A2) when the leading-in head is about to contact with the leading-out head, the leading-in head extrudes the release buckle of the buckle, so that the working buckle of the buckle is separated from the air exhaust plate, the air exhaust plate moves rapidly under the action of spring tension, a vacuum degree is formed on the leading-in head side of the air exhaust plate, and further, air flow which flows into the inner part of the movable contact sleeve and can last for a short time is generated in a gap between the leading-in head and the movable contact sleeve, the function of arc suction and arc extinction can be achieved, and the generated spark can be prevented from leaking out, moreover, the part of the leading-out head which is contacted with the second end resistance layer of the leading-in head at first can inhibit the generation of electric spark or electric spark, at the moment, the voltage of the leading-out head can be measured by the measuring module, the remote control unit can record the cycle times of the cycle conduction of the electromagnetic, the remote control unit can change the load partial pressure by controlling the leading-in head to continuously extend in or draw out, and the remote control switch is used as a voltage regulating switch; A3) the remote control unit continues to circularly control the electromagnetic poles to be conducted in turn and continues to drive the rotor to rotate, when the resistance layer at the second end of the leading-in head crosses the leading-out head, the circular conduction of the electromagnetic poles is stopped, and at the moment, the leading-in head is conducted with the leading-out head; A4) when the remote control unit receives a switch disconnection instruction, the electromagnetic poles are controlled to be conducted in turn, the direction of the rotation is opposite to that of the opening, the rotor is driven to rotate in the reverse direction, the leading-out head and the leading-in head are gradually separated from contact, the contact resistance of the leading-out head and the leading-in head is gradually increased in the separation process, electric sparks can be avoided, the rotor continues to rotate in the reverse direction until the leading-in head is separated from the movable contact head sleeve, and disconnection is finished.

The utility model discloses a substantive effect is: the electric spark can be avoided at the moment of switching on and off the switch, and the voltage regulating function is realized; the structure is not easy to block, and the state is maintained without energy consumption.

Drawings

Fig. 1 is a structure diagram of a remote control switch.

Fig. 2 is a structure diagram of a spark-proof movable contact.

Fig. 3 is a cross-sectional view of a spark-proof movable contact.

Fig. 4 is an end view of the spark-proof movable contact.

Fig. 5 is a schematic diagram of different working states of the spark-proof moving contact, wherein fig. 5-a is a schematic diagram of an off state, fig. 5-b is a schematic diagram of a state immediately before the switch is turned on, and fig. 5-c is a schematic diagram of a state where the switch is turned on.

Fig. 6 is a schematic diagram illustrating the doping concentration trend of the resistive layer.

Wherein: 1. the movable contact head comprises a movable contact head sleeve, 2, a leading-out head, 3, an insulating sleeve, 4, a wiring terminal, 5, a leading-in head, 6, a guide groove, 7, a driving base, 8, a rotor, 9, a guide rod, 10, a spring sleeve, 11, a spring, 12, an air pumping plate, 13, an electromagnetic pole, 14, a buckle, 15, a release buckle, 16, a working buckle, 17, a resistance layer, 100, a communication module, 200, a measuring module, 300, a remote control unit, 400 and a spark-proof movable contact.

Detailed Description

The following provides a more detailed description of the present invention, with reference to the accompanying drawings.

As shown in fig. 1, the structure of the remote control switch is shown, a static contact, a spark-proof moving contact 400, a driving base 7, a remote control unit 300 and a communication module 100 are installed in a shell, the static contact includes a wiring terminal 4, an insulating sleeve 3 and an inlet 5, the inlet 5 is cylindrical, a first end of the inlet 5 is connected with the wiring terminal 4, the insulating sleeve 3 is sleeved on the wiring terminal 4 and is abutted to a first end of the inlet 5, the wiring terminal 4 is connected with an indoor live wire, a measuring module 200 measures potential and current of the inlet 5, the measuring module 200 and the communication module 100 are both connected with the remote control unit 300, the spark-proof moving contact 400 is installed on the driving base 7, and the driving base 7 is controlled by the remote control unit. The measurement module 200 may measure the power and real-time current of the access switch, and the communication module 100 may receive an instruction from the control terminal or may transmit collected data to the control terminal.

As shown in fig. 2, which is a structure diagram of a spark-proof moving contact, as shown in fig. 3, which is a sectional diagram of a spark-proof moving contact, as shown in fig. 4, which is an end view of a spark-proof moving contact, a spark-proof moving contact 400 includes a moving contact sleeve 1 and a rotor 8, the moving contact sleeve 1 is a hollow cylinder, the diameter of the inner wall of the moving contact sleeve 1 is equal to the diameter of the outer circle of an inlet 5, the outer wall of the contact sleeve is processed with a guide groove 6, a guide rod 9 matched with the guide groove 6 is installed on a drive base 7, the inner wall of a first end of the moving contact sleeve 1 is processed with an internal thread, the circumference of the moving contact sleeve 1 near a second end is processed with a hollow, an outlet 2 is installed in the hollow, the end face of the outlet 2 is in an inward concave arc shape and is flush with the inner wall of the moving contact sleeve 1, the outlet 2 is connected with a load, the first end of the, and a permanent magnet is fixedly arranged at the second end of the rotor 8.

An air exhaust plate 12, a spring 11, a spring sleeve 10 and a buckle 14 are further arranged in the movable contact head sleeve 1, the movable contact head sleeve 1 and the buckle 14 are both made of ceramic materials, the air exhaust plate 12 is cylindrical, the outer wall of the air exhaust plate 12 is abutted against the inner wall of an inner hole of the movable contact head sleeve 1, the spring sleeve 10 is a hollow cylinder with one open end, the closed end of the spring sleeve 10 is concentrically hinged with the first end of the rotor 8 and is relatively fixed with the rotor 8 along the axial direction of the rotor 8, the spring sleeve 10 is connected in the spring sleeve 10, the first end of the spring 11 is fixedly connected with the closed end of the spring sleeve 10, the second end of the spring 11 is fixedly connected with the end face of the air exhaust plate 12 close to the first end of the movable contact head sleeve 1, an air vent is processed on the side of the air exhaust plate 12 close to the first end of the movable contact head sleeve 1, the buckle, the first end of the buckle 14 is elastically arranged in the containing cavity of the inner wall of the moving contact head sleeve 1, the second end of the buckle 14 is provided with a working buckle 16 buckled with the air extracting plate 12, and the middle part of the buckle 14 is provided with a release buckle 15. The moving contact head sleeve 1 can be pushed forwards when the rotor 8 rotates, the working buckle 16 of the buckle 14 drives the air extracting plate 12 to move forwards together and stretch the spring 11, the leading-in head 5 gradually stretches into the moving contact head sleeve 1, when the leading-in head 5 is about to be contacted with the leading-out head 2, the leading-in head 5 extrudes the release buckle 15 of the buckle 14, the working buckle 16 of the buckle 14 is separated from the air extracting plate 12, the air extracting plate 12 moves rapidly under the action of the tensile force of the spring 11, the vacuum degree is formed at the leading-in head 5 side of the air extracting plate 12, and then air flow flowing to the inside of the moving contact head sleeve 1 is generated in a gap between the leading-in head 5 and the moving contact head sleeve 1, so that the arc suction and arc extinction effects can be achieved, generated sparks can be prevented from being sucked inwards, and the moving contact head sleeve 1 and the buckle 14 are both.

Drive base 7 includes base member and a plurality of electromagnetism utmost point 13, and the base member is one end confined ring shape, and the base member up end is opened there is the hinge hole, and a plurality of electromagnetism utmost point 13 is evenly installed along circumference to base member middle part inner wall, and a plurality of electromagnetism utmost point 13 all is connected with remote control unit 300. Present remote control switch adopts the contact of electro-magnet and armature control contact and breaks away from, has the shortcoming that the card pause appears easily in the maintenance state power consumption, the utility model discloses in adopt the electromagnetic pole 13 that the circumference was arranged, attract the permanent magnet on the rotor 8, control electromagnetic pole 13 switches on in turn and both can make rotor 8 continuously rotate, combines the contact that screw thread transmission structure can realize the contact and break away from, and the screw thread helix lead angle is less than the auto-lock angle, therefore does not need the power consumption in the maintenance state.

As shown in fig. 5, which is a schematic diagram of different working states of the spark-proof moving contact, wherein fig. 5-a is a schematic diagram of a disconnected state, fig. 5-b is a schematic diagram of a state before the switch is connected, fig. 5-c is a schematic diagram of a state before the switch is connected, as shown in fig. 5 a, the state before the switch is connected is remotely controlled, a working buckle 16 of a buckle 14 is positioned at the second end side of the pumping plate close to the moving contact sleeve 1, the moving contact sleeve 1 extends out under the pushing action of the rotor 8, and simultaneously, the pumping plate 12 is driven to move forwards and stretch the spring 11, as shown in fig. 5-b, when the moving contact sleeve 1 extends out enough distance, the leading-in head 5 contacts with the leading-out head 2 immediately, the leading-in head 5 presses the buckle 14 to release the buckle 15, so that the working buckle 14 is released, the pumping plate 12 moves towards the second end of the moving contact sleeve 1 under, and then can form the air current leading to the moving contact cover 1 inside in the interval between moving contact cover 1 and the leading-in 5, play the function of arc-absorbing arc-extinguishing, and even produce the electric spark also produce the spark in the moving contact cover 1, has improved the safety performance, as shown in figure 5-c, can continue to push the moving contact cover 1 through the trochanter 8 after there is contact in leading-in 5 and leading-out 2, make leading-in 5 and leading-out 2 joint, the switch is closed promptly.

As shown in fig. 6, for a schematic diagram of the doping concentration trend of the resistance layer, the resistance layer 17 is processed on the cylindrical surface of the lead-in 5 near the second end, the resistance layer 17 is formed by doping quinvalent element with silicon, and the doping concentration of the resistance layer 17 is gradually increased along the direction away from the second end. The over-resistance layer 17 enables the load to have pre-electrification before being connected and then to be in contact with the metal contact area with low resistance, so that the current at the moment of connection can be reduced, particularly the load with the inductor can enable the inductor to generate impedance when being connected in advance, and the generation of electric sparks caused by overlarge instantaneous current is avoided.

The utility model discloses spark-proof remote control switch's application method does: A1) when the movable contact sleeve 1 is separated from the leading-in head 5, the switch is in a disconnected state, after the remote control unit 300 receives a switch opening instruction, the remote control unit 300 controls the electromagnetic poles 13 to be conducted in turn to generate an electromagnetic field to drive the rotor 8 to rotate, the first end of the rotor 8 is connected with the movable contact sleeve 1 through threads, a guide rod 9 and a guide groove 6 are arranged between the movable contact sleeve 1 and the driving base 7, the movable contact sleeve 1 can be pushed forwards when the rotor 8 rotates, the working buckle 16 of the buckle 14 drives the air extracting plate 12 to move forwards together and stretch the spring 11, and the leading-in head 5 gradually extends into the movable contact sleeve 1; A2) when the leading-in head 5 is about to contact the leading-out head 2, the leading-in head 5 extrudes the release button 15 of the buckle 14, so that the working button 16 of the buckle 14 is separated from the air extracting plate 12, the air extracting plate 12 moves rapidly under the tension action of the spring 11, vacuum degree is formed on the leading-in head 5 side of the air extracting plate 12, and further air flow which flows to the inside of the movable contact sleeve 1 and lasts for a short time is generated in a gap between the leading-in head 5 and the movable contact sleeve 1 (the air flow duration is longer than the time for completing the closing of the leading-in head 5 and the leading-out head 2 of the switch), so that the arc absorption and arc extinction effects can be achieved, the generated spark can be prevented from leaking out, the leading-out head 2 is firstly contacted with the second end resistance layer 17 part of the leading-in head 5, the generation of the arc or the electric spark can be inhibited, at the moment, the measuring module 200 can, the length of the leading-in head 5 extending into the moving contact head sleeve 1 can be calculated according to the cycle times, when the resistance layer 17 of the second end of the leading-in head 5 is contacted with the leading-out head 2, the remote control unit 300 can change the load voltage division by controlling the leading-in head 5 to continue extending or drawing out, and the remote control switch is used as a voltage regulating switch at the moment (the resistance value of the resistance layer 17 is a gradual change resistance value related to the position, the resistance close to the second end of the leading-in head 5 is large, and the resistance far away from the second end of the leading-in; A3) the remote control unit 300 continues to cyclically control the electromagnetic poles 13 to be conducted in turn and continues to drive the rotor 8 to rotate, when the resistance layer 17 at the second end of the leading-in head 5 passes over the leading-out head 2, the cyclic energization of the electromagnetic poles 13 is stopped, and at the moment, the leading-in head 5 is conducted with the leading-out head 2; A4) when the remote control unit 300 receives a switch disconnection instruction, the electromagnetic poles 13 are controlled to be alternately conducted, the alternate direction is opposite to the opening direction, the rotor 8 is driven to rotate reversely, the leading-out head 2 and the leading-in head 5 are gradually separated from contact, the contact resistance of the leading-out head 2 and the leading-in head 5 is gradually increased in the separation process, electric sparks can be avoided, the rotor 8 continuously rotates reversely until the leading-in head 5 is separated from the movable contact head sleeve 1, and the disconnection action is finished.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims (9)

1. A spark-proof remote control switch is characterized in that,

including casing, static contact, spark-proof moving contact, drive base and remote control unit install in the casing, the static contact includes terminal, insulating cover and inlet, the inlet is cylindrical, and the first end of inlet is connected with the terminal, insulating cover cup joints on the terminal and with the first end butt of inlet, the terminal is connected with the house lead wire, the spark-proof moving contact is installed on the drive base, the drive base is connected with the remote control unit.

2. A spark-proof remote control switch as claimed in claim 1,

the measuring module and the communication module are both arranged in the shell, the measuring module measures the potential and the current of the lead-in head, and the measuring module is connected with the communication module.

3. A spark-proof remote control switch according to claim 1 or 2,

the sparkproof moving contact includes movable contact cover and rotor, the movable contact cover is hollow cylinder, and movable contact cover inner wall diameter equals with leading-in head excircle diameter, and contact cover outer wall processing has the guide way, install on the drive base with the guide bar that the guide way matches, and the processing of movable contact cover first end inner wall has the internal thread, and the movable contact cover is close to second end circumference processing and has the fretwork, install the draw-out head in the fretwork, draw-out the head end personally submit indent arc and with movable contact cover inner wall parallel and level, draw-out head and load connection, the processing of rotor first end have with the external screw thread that the internal thread matches, the articulated installation in rotor middle part is on the drive base, and the rotor is fixed with drive base relative position in the rotor axial, and rotor second end fixed mounting has.

4. A spark-proof remote control switch as claimed in claim 3,

the moving contact sleeve is internally provided with an air exhaust plate, a spring sleeve and a buckle, the air exhaust plate is cylindrical, the outer wall of the air exhaust plate is abutted against the inner wall of an inner hole of the moving contact sleeve, the spring sleeve is a hollow cylinder with one end open, the closed end of the spring sleeve is concentrically hinged with the first end of the rotor and is relatively fixed with the rotor along the axis direction of the rotor, the spring is sleeved in the spring sleeve, the first end of the spring is fixedly connected with the closed end of the spring sleeve, the second end of the spring is fixedly connected with the end face of the air exhaust plate close to the first end of the moving contact sleeve, the moving contact sleeve is positioned at the side of the air exhaust plate close to the first end of the moving contact sleeve and is provided with an air vent, the buckle is embedded and arranged on the inner wall of the moving contact sleeve close to the second end, the inner wall of, the middle part of the buckle is provided with a release buckle.

5. A spark-proof remote control switch according to claim 1 or 2,

the drive base includes base member and a plurality of electromagnetism utmost point, the base member is one end confined ring shape, and the base member up end is opened there is the hinge hole, and a plurality of electromagnetism utmost point is evenly installed along circumference to base member middle part inner wall, a plurality of electromagnetism utmost point all is connected with the remote control unit.

6. A spark-proof remote control switch according to claim 1 or 2,

the cylindrical surface of the leading-in head close to the second end is processed with a resistance layer, the resistance layer is a resistance layer with a gradual change doping transition region, and the doping concentration of the resistance layer is gradually increased along the direction far away from the second end.

7. A spark-proof remote control switch as claimed in claim 5,

the cylindrical surface of the leading-in head close to the second end is processed with a resistance layer, the resistance layer is a resistance layer with a gradual change doping transition region, and the doping concentration of the resistance layer is gradually increased along the direction far away from the second end.

8. A spark-proof remote control switch as claimed in claim 3,

the moving contact head cover is fireproof and insulated.

9. A spark-proof remote control switch as claimed in claim 4,

the buckle is fireproof and insulating.

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