TWM561789U - Gas detecting device - Google Patents

Abstract

A gas detecting device comprises: a casing having a venting chamber, an air inlet, a bifurcated flow passage and a connecting passage, wherein the venting chamber communicates with the outside of the casing through the air inlet, wherein the divergent flow passage communicates with the venting chamber, The connecting passage is connected with the divergent flow passage; the gas transmission actuators are respectively arranged on the divergent flow passages, and the air is introduced into the ventilating chamber through the air inlet and enters the divergent flow passage; Arranging respectively between the connecting passage and the branch flow passage to control the air introduction connecting passage; and an external sensor detachably assembled to the connecting passage, which comprises a sensor to be in the connecting passage Air is used for sensing.

Description

Gas detection device

The present invention relates to a gas detecting device, and more particularly to a gas detecting device having a gas transfer actuator for conducting gas.

In recent years, the air pollution problem in China and neighboring areas has become more and more serious, leading to many harmful gases in daily life. If it cannot be detected in time, it will affect the health of the human body.

In addition, users will have different gas detection requirements for different places, such as factories, offices, homes, etc., such as gas sensors that require volatility or toxic gases that cause inhalation damage, homes, offices. It is a sensor for carbon monoxide, carbon dioxide, temperature, humidity, etc., but the gas detection devices currently available on the market are all integrated gas detection devices, and the detected gas has been determined before leaving the factory, and cannot be selected according to the user. Gas detection required, such a gas detection device cannot provide complete detection of user needs, and there is a real need for improvement. In view of this, how to develop a gas detecting device that can be sensed according to gas detection requirements is currently an extremely important issue.

The main purpose of this case is to provide a gas detecting device for detecting the air sensor as an external sensor, providing users with timely and accurate gas information, which can be selected and matched according to the needs of the user. The sensor has an easy-to-replace function for improved usability and convenience.

A generalized embodiment of the present invention is a gas detecting device comprising: a housing having a venting chamber, at least one air inlet, at least one bifurcated flow channel, and at least one connecting passage, the venting chamber passing through the at least one An air inlet is in communication with the outer portion of the housing, wherein the at least one branch flow passage is in communication with the at least one venting chamber, and the at least one connecting passage is in communication with the at least one branch flow passage; at least one gas transmission actuator, Each of the at least one bifurcated flow path is configured to be introduced into the venting chamber by the at least one air inlet and into the divergent flow path; at least one valve is disposed at the at least one valve a connecting channel is connected between the at least one branch channel to control air introduction into the at least one connecting channel; and at least one external sensor is detachably assembled to the at least one connecting channel, including a sensing And sensing the air in the at least one connecting channel.

100‧‧‧Gas detection device

1‧‧‧shell

11‧‧‧ Ventilation chamber

12‧‧‧air inlet

13‧‧‧Different runners

14‧‧‧Connected channel

15‧‧‧Baffle

2, 21, 22‧‧‧ gas transmission actuator

211‧‧‧jet film

211a‧‧‧ bracket

211b‧‧‧suspension tablets

211c‧‧‧ hollow holes

211d‧‧‧ gap

212‧‧‧ cavity frame

213‧‧‧ actuator

213a‧‧‧Piezo carrier

213b‧‧‧Adjusting the resonance plate

213c‧‧ ‧thin plate

214‧‧‧Insulation frame

215‧‧‧Electrical frame

216‧‧‧Resonance chamber

221‧‧‧Air intake plate

221a‧‧‧Air intake

221b‧‧‧ bus bar hole

221c‧‧ ‧ confluence chamber

222‧‧‧Resonance film

222a‧‧‧ hollow hole

222b‧‧‧movable department

223‧‧‧ Piezoelectric actuating components

223a‧‧‧suspension board

P1‧‧‧ first surface

P2‧‧‧ second surface

223b‧‧‧Front frame

223c‧‧‧Connecting Department

223d‧‧‧ Piezo Pieces

223e‧‧‧ gap

223f‧‧‧ convex

224‧‧‧First insulation sheet

225‧‧‧Electrical sheet

226‧‧‧second insulation sheet

227‧‧‧ chamber

3‧‧‧ valve

31‧‧‧ Holder

32‧‧‧Seal

33‧‧‧ displacement parts

311, 321, 331‧‧‧ through holes

4‧‧‧External sensor

5‧‧‧ Processor

6‧‧‧Communication module

7‧‧‧Battery module

200‧‧‧Power supply unit

300‧‧‧Linking device

Figure 1 is a schematic view showing the structure of the gas detecting device of the present invention.

Fig. 2 is a schematic cross-sectional view showing the gas detecting device shown in Fig. 1.

Fig. 3A is a schematic view showing the first embodiment of the gas transmission actuator of the gas detecting device of the present invention.

FIG. 3B is a schematic view showing a second embodiment of the gas transmission actuator of the gas detecting device of the present invention.

Fig. 4 is an exploded perspective view showing the components of the first embodiment of the gas transmission actuator of the present invention.

Fig. 5A is a schematic cross-sectional view showing the first embodiment of the gas transmission actuator shown in Fig. 4.

Fig. 5B and Fig. 5C are diagrams showing the operation of the first embodiment of the gas transmission actuator shown in Fig. 5A.

6A and 6B are respectively a front and back exploded view of the related components of the second embodiment of the gas transmission actuator of the present invention.

Fig. 7A is a schematic cross-sectional view showing a second embodiment of the gas transmission actuator shown in Fig. 6A.

7B to 7D are views showing the operation of the second embodiment of the gas transmission actuator shown in Fig. 6A.

Figure 8 is a block diagram of the gas detecting device of the present invention.

Fig. 9A and Fig. 9B are schematic diagrams showing the valve actuation of the gas detecting device of the present invention.

Some exemplary embodiments embodying the features and advantages of the present invention are described in detail in the following description. It is to be understood that the present invention is capable of various modifications in various embodiments, and is not intended to limit the scope of the invention.

This case provides a gas detection device. Please refer to both Figure 1 and Figure 2. In the embodiment of the present invention, the gas detecting device 100 comprises a casing 1, at least one gas transmission actuator 2, at least one valve 3 and at least one external sensor 4; the casing 1 has a ventilation chamber 11, at least one The air inlet 12, the at least one branch flow path 13 and the at least one connecting channel 14, the above-mentioned branch flow path 13, the connection channel 14, the gas transmission actuator 2, and the valve 3 are all corresponding to each other, and the divergent flow path 13 is hereinafter. The number of components such as the connecting passage 14, the gas transmission actuator 2, and the valve 3 are all described as examples, and are not limited thereto. The ventilating chamber 11 communicates with the outside of the casing 1 via the air inlet 12 and communicates with the five branch channels 13 respectively, and the casing 1 has a plurality of partitions 15 therein, and the partitions 15 are used to partition the five partitions 15 The divergent flow channel 13 and the five connecting channels 14, the number and position of the five connecting channels 14 respectively correspond to and communicate with the five different flow channels 13, and the five gas transmission actuators 2 are respectively corresponding to the five different flow paths. 13 is used to introduce the air in the ventilating chamber 11 into the divergent flow passage 13; the five valves are respectively disposed in the five connecting passages 14 for controlling the air introduction connecting passage 14, and finally, five external senses. The detectors 4 are respectively detachably assembled to the five connecting channels 14, wherein each of the external sensors 4 includes a sensor (not shown) The sensor can be one of an oxygen sensor, a carbon monoxide sensor, a carbon dioxide sensor, or a combination thereof, and the sensor can also be a volatile organic sensor, or sense The device may be one or a combination of a bacteria sensor, a virus sensor and a microbial sensor, or the sensor may be one of a temperature sensor or a humidity sensor or a combination thereof. To detect the air connecting the channels 14.

The gas transmission actuator 2 described above may be a piezoelectric blower actuator or a piezoelectric actuator. In the following embodiment, the gas transmission actuator shown in FIG. 3A is the first implementation of the piezoelectric blower actuator. Mode, the gas transmission actuator is designated by 21; as shown in Fig. 3B, the gas transmission actuator is a piezoelectric actuator as the second embodiment, and the gas transmission actuator is indicated by 22.

Please refer to FIG. 3A, FIG. 4, and FIGS. 5A to 5C for the first embodiment of the gas transmission actuator. The gas transmission actuator 21 includes a plurality of air-jet aperture sheets 211, a cavity frame 212, an actuator 213, an insulating frame 214, and a conductive frame 215. The air-hole sheet 211 includes a plurality of brackets 211a and a suspension piece 211b. a hollow hole 211c and at least one gap 211d, the suspension piece 211b can be flexed and vibrated, and the plurality of brackets 211a are adjacent to the circumference of the suspension piece 211b. In this embodiment, the number of the brackets 211a is four, respectively adjacent to the suspension piece 211b. The four corners are not limited thereto, and are fixed to the partition plates 15 through the four brackets 221a to position the air venting holes 21 in the branch flow passages 14, and the hollow holes 211c are formed in the four holes 211a. The center position of the suspension piece 211b, the gap 211d is an air flow hole between the brackets 211a; the cavity frame 212 is carried on the suspension piece 211b, and the actuator 213 is stacked on the cavity frame 212, and includes A piezoelectric carrier 213a, an adjustment resonator plate 213b, and a piezoelectric plate 213c, wherein the piezoelectric carrier 213a is stacked on the cavity frame 212, and the adjustment resonator plate 213b is stacked on the piezoelectric carrier 213a. The piezoelectric plate 213c is stacked and placed on the adjustment resonance plate 2 13b, after being applied with a voltage, deforming to drive the piezoelectric carrier 213a and the adjustment resonator plate 213b to perform reciprocating bending vibration; the insulating frame 214 is to carry the piezoelectric layer stacked on the actuator 213 On the carrier 213a, the conductive frame 215 is stacked on the insulating frame 214, wherein a resonant cavity 216 is formed between the actuator 213, the cavity frame 214 and the floating piece 211b. In addition, the above-mentioned adjusting resonator plate 213b The thickness is greater than the thickness of the piezoelectric carrier 213a.

Referring to FIG. 5B, when a driving voltage is applied to the piezoelectric plate 213c of the actuator 213, the piezoelectric plate 213c starts to deform due to the piezoelectric effect and drives the adjustment of the resonance plate 213b and the piezoelectric carrier 213a at the same time. The vent 211 will be driven together by the Helmholtz resonance principle, causing the actuator 213 to move upward, and the volume of the branch flow path 13 is increased to the venting chamber due to the downward displacement of the actuator 213. The air in 11 will enter the branch flow path 13 from the gap 211d between the bracket 211a of the air vent 211 due to the pressure gradient, and the air also enters the resonance chamber 216 from the hollow hole 211c; please refer to Fig. 5C, the air continuously Entering the divergent flow passage 13, at this time, the actuator 213 is driven upward by the voltage, compresses the volume of the divergent flow passage 13, and pushes the air into the connecting passage 14, while the air of the resonant chamber 216 is also hollow. The hole 211c is ejected, and air is supplied to the sensor of the external sensor 4 to detect the air, and the air in the ventilating chamber 11 is continuously sucked through the gas transmission actuator 21, so that the air outside the casing 1 can continuously pass through the intake air. Port 12 Breather chamber 11 and flows into the branch flow passage 13 and connecting passage 14, for measuring the external sensor 4 is connected to a specific gas content of the air passage 14.

Please refer to FIG. 3B, FIG. 6A, FIG. 6B and FIGS. 7A to 7D for a second embodiment of the gas transmission actuator. The gas transmission actuator 22 includes an intake air which is sequentially stacked. a plate 221, a resonant plate 222, a piezoelectric actuator 223, a first insulating sheet 224, a conductive sheet 225 and a second insulating sheet 226; the air inlet plate 221 has at least one air inlet 221a, at least one convergence In the present embodiment, the number of the air inlet holes 221a and the bus bar holes 221b is four, but not limited thereto, and the number of the air inlet holes 221a and the bus bar holes 221b are four. One end of the bus bar hole 221b is connected to the corresponding air inlet hole 221a. The other end is connected to the confluence chamber 221c, and the gas enters the air inlet hole 221a, passes through the corresponding bus bar hole 221b, and finally converges in the confluence chamber 221c. The resonance piece 222 has a hollow hole 222a and a movable portion 222b. The hollow hole 222a vertically corresponds to the confluence chamber 221c, and the movable portion 222b is around the hollow hole 222a. The piezoelectric actuator element 223 is disposed opposite to the resonance piece 222 and has a suspension plate 223a, an outer frame 223b, and at least one a connecting portion 223c and a piezoelectric piece 223d, the outer frame 223b surrounds the periphery of the suspension plate 223a, and the connecting portion 223c is connected between the outer frame 223b and the suspension plate 223a to provide elastic support. Further, the connecting portion 223c and the outer frame 223b, The suspension plate 223a has at least one gap 223e, and the suspension plate 223a has a first surface P1 and a second surface P2. The piezoelectric piece 223d is attached to the first surface P1 of the suspension plate 223a, and has a square structure. And having a side length less than or equal to the side length of the suspension plate 223a, the second surface P2 of the suspension plate 223a has a convex portion 223f, and the piezoelectric actuator 223 is disposed through the outer frame 223b to space the resonance plate 222 and the suspension plate 223a. And piezoelectric A cavity 227 is formed between the suspension plate 223a and the outer frame 223b of the movable member 223 and the resonant plate 222. Further, the first insulating sheet 224, the conductive sheet 225 and the second insulating sheet 226 are sequentially stacked on the piezoelectric actuator. Above 223.

Referring to FIG. 7B, when a voltage is applied to the piezoelectric piece 223d of the piezoelectric actuator 223, the piezoelectric piece 223d is deformed by the piezoelectric effect, and the suspension plate 223a is displaced upward, and the movable portion of the resonance piece 222 is moved. 222b is synchronously driven upward by the Helmholtz resonance principle. At this time, since the movable portion 222b moves upward, the volume of the confluence chamber 221c is increased, and air is drawn from the intake hole 221a to enter the confluence chamber. 221c, referring to FIG. 7C, the gas transmission actuator 22 is continuously operated, and when the suspension plate 223a of the piezoelectric actuator element 223 is displaced downward, the movable portion 222b of the synchronous interlocking resonance plate 222 is displaced downward, so that the confluence chamber The volume of 221c is lowered, and air is pushed from the confluence chamber 221c toward the chamber 227 between the piezoelectric actuator 223 and the resonance plate 222, and then through the convex portion 223f on the suspension plate 223a. The air is pushed to both sides and finally discharged by the gap 223e; finally, referring to Fig. 7D, the suspension plate 223a is reset upward, and the movable portion 222b of the resonance piece 222 is displaced upward, and the volume of the chamber 222c is compressed to make the air from both sides. Discharge to the gap 223e, and increase the volume of the confluence chamber 221c, so that the air continuously enters through the air inlet hole 221a, and repeatedly repeats the above operation, so that the air can enter the non-stop air inlet hole 221a, and then pass through the gap 223e. Conveying gas.

Continuing to refer to FIG. 2 and FIG. 8 , the gas detecting device 100 further includes a processor 5 , a communication module 6 , and a battery module 7 . The processor 5 is electrically connected to the battery module 7 and the communication module 6 . The gas transmission actuator 2 and the valve 3 are used to control the activation of the gas transmission actuator 2, and the external sensor 4 is connected to the connection channel 14 and can be electrically connected to the processor 5, thereby The result detected by the external sensor 4 sensor can be analyzed and stored by the processor 5, and can be converted into a monitoring value; when the processor 5 activates the gas transmission actuator 2, the gas transmission actuator 2 starts. The air is drawn to enter the divergent flow channel 13 and the connecting channel 14. The sensor in the external sensor 4 in the connecting channel 14 starts to detect the air in the connecting channel 14 to detect the inside of the connecting channel 14. The content of the air is transmitted to the processor 5, and the processor 5 calculates the content of the gas to be tested according to the detection result, and analyzes and generates the monitoring value for storage, and the processor 5 stores the monitoring. The value is sent by the communication module 6 to an outside Coupling means 300, coupling means 300 may be a cloud system, portable devices, computer systems, one of the display device or the like, to display and inform the alarm monitor value.

In addition, the communication module 6 can be wired or wirelessly transmitted to the external connection device 300, and the wired transmission mode is as follows: for example, a wired transmission module of one of USB, mini-USB, micro-USB, or the like, or The wireless transmission mode is as follows: for example, a wireless transmission module of one of a Wi-Fi module, a Bluetooth module, a radio frequency identification module, and a near field communication module.

As described above, the battery module 7 is configured to store electrical energy, output electrical energy, and provide electrical energy to the processor 5, so that the processor 5 controls the gas transmission actuator 2, the communication module 6, the valve 3, and the external sensor 4 In addition, the battery module 7 can externally connect a power supply device 200, receive the energy of the power supply device 200 and store it, and the power supply device 200 can transmit energy by wired conduction, and can also transmit energy through wireless conduction to The battery module 7 is not limited thereto.

Continuing to refer to FIGS. 2 and 9A, the valve 3 includes a retaining member 31, a seal member 32, and a displacement member 33. The displacement member 33 is disposed between the holder 31 and the sealing member 32. The holder 31, the sealing member 32 and the displacement member 33 respectively have a plurality of through holes 311, 321, 331, and the plurality of the retaining member 31 and the displacement member 33. The through holes 311, 331 are aligned with each other, and the plurality of through holes 321, 331 of the sealing member 32 and the holder 31 are misaligned with each other.

Referring to FIGS. 9A and 8 , the displacement member 33 is a charged material, and the holder 31 is a bipolar conductive material to maintain the displacement member 33 and the holder 31 at the same polarity, and toward the sealing member 32. Closely, the valve 3 is closed; please refer to FIG. 9B, the displacement member 33 is a charged material, and the holder 31 is a two-polar conductive material to maintain the displacement member 33 and the holder 31 at different polarities. The opening of the valve switch 3 is made close to the holding member 31, and the displacement of the retaining member 31 is adjusted to move the displacement member 33 to form the opening and closing state of the valve switch 3. The processor 5 is electrically connected to the valve 3 such that the holder 31 can be controlled by the processor 5 in its polarity.

In addition, the displacement member 33 of the valve 3 described above may be a magnetic material, and the holder 31 is a magnetic material of controlled polarity. When the displacement member 33 and the holder 31 maintain the same polarity, the displacement member 33 faces the seal. The member 32 is close to close the valve switch 3; conversely, when the retaining member 31 changes polarity and has a different polarity from the displacement 33, the displacement member 33 will approach the holder 31, constituting the valve switch 3 to be opened, as can be seen from the above description, Adjusting the magnetic property of the holder 31 to cause the displacement member 33 Move to adjust the opening and closing state of the valve switch 3. The holder 31 can be controlled by the processor 5 to have its magnetic pole polarity.

In summary, the gas detecting device provided in the present case introduces air in the collecting chamber into the branch channel and the connecting channel through externally connecting the gas transmitting actuators in the plurality of different flow channels for external connection in the connecting channel. The sensor can detect the air information entering the connection to learn the air quality information, and the external sensor is detachably assembled in the connection channel, so that the user can easily replace the device according to the needs thereof. A gas sensor that requires its needs.

This case has been modified by people who are familiar with the technology, but it is not intended to be protected by the scope of the patent application.

Claims (23)

A gas detecting device comprising: a casing having a venting chamber, at least one air inlet, at least one bifurcated flow passage, and at least one connecting passage, the venting chamber passing through the at least one air inlet and outside the housing Connected to each other, wherein the at least one bifurcated flow channel is in communication with the at least one venting chamber, and the at least one connecting channel is in communication with the at least one bifurcated flow channel; at least one gas transfer actuator is each configured to be at least one divergence a flow path of the actuated guide air is introduced into the venting chamber from the at least one air inlet and into the divquarters flow path; at least one valve is respectively disposed on the at least one connecting channel and the at least one branch Between the flow path communication, the control air is introduced into the at least one connecting channel; and at least one external sensor is detachably assembled to the at least one connecting channel, and includes a sensor to connect the at least one The air in the channel is sensed. The gas detecting device of claim 1, wherein the housing comprises at least one partition, the gas transfer actuator comprises: a jet sheet comprising a plurality of brackets, a suspension piece and a hollow hole, The suspension piece is flexibly vibrated, and the plurality of brackets are sleeved and fixed on the at least one partition plate to position the air venting aperture piece in the branch flow path, and the plurality of brackets and the suspension piece and the partition plate Forming at least one gap therebetween; a cavity frame stacked on the suspension sheet; a piezoelectric actuator stacked on the cavity frame to apply a voltage to generate reciprocating bending vibration; an insulating frame a carrier is stacked on the actuator; and a conductive frame is disposed on the insulating frame; wherein a resonant cavity is formed between the actuator, the cavity frame and the floating piece, Actuator drive The air vent sheet generates a resonance, and the suspension piece of the air vent sheet is reciprocally vibrated to generate the air guiding through the at least one gap into the branch flow path to realize the rapid transmission flow of the air. The gas detecting device of claim 2, wherein the piezoelectric actuator comprises: a piezoelectric carrier plate stacked on the cavity frame; an adjustment resonance plate, the carrier is stacked on the pressure And a piezoelectric sheet, which is stacked on the adjustment resonance plate, applies a voltage to drive the piezoelectric carrier, and adjusts the resonance plate to generate reciprocating bending vibration. The gas detecting device of claim 1, wherein the gas transfer actuator comprises: an air inlet plate having at least one air inlet hole, at least one bus bar hole, and a center forming a manifold chamber a recessed portion, wherein the at least one air inlet hole is for introducing a gas flow, the bus bar hole corresponding to the air inlet hole, and the air flow guiding the air inlet hole is merged to the confluence chamber formed by the central recess; a resonance piece having a a hollow hole corresponding to the confluence chamber, wherein the hollow hole is surrounded by a movable portion; and a piezoelectric actuation element disposed corresponding to the resonance piece; wherein between the resonance piece and the piezoelectric actuation element Having a gap to form a chamber for driving the piezoelectric actuator to be introduced by the at least one air inlet of the air inlet plate, and collecting the central air recess through the at least one bus hole, and then The hollow hole of the resonator plate flows into the chamber to generate a resonant transmission airflow by the piezoelectric actuator and the movable portion of the resonator. The gas detecting device of claim 4, wherein the piezoelectric actuating element comprises: a suspension plate having a first surface and a second surface and being bendable and vibrating; An outer frame disposed around the outer side of the suspension plate; at least one connecting portion connected between the suspension plate and the outer frame to provide elastic support; and a piezoelectric piece having a side length, the side length being less than Or equal to one side of the suspension plate, and the piezoelectric piece is attached to the first surface of one of the suspension plates for applying a voltage to drive the suspension plate to bend and vibrate. The gas detecting device of claim 4, wherein the gas transmitting actuator comprises: a conductive sheet, a first insulating sheet and a second insulating sheet, wherein the air inlet plate, the resonant sheet, the The piezoelectric actuator, the first insulating sheet, the conductive sheet and the second insulating sheet are stacked in sequence. The gas detecting device of claim 1, further comprising a processor and a communication module, wherein the processor controls the communication module, the gas transmission actuator and the activation of the valve, and the external connection The sensor of the sensor is connected to the connection channel for electrical and data connection with the processor, and the detected result of the sensor is analyzed and converted into a monitoring value by the processor, and the monitoring is performed. The value is sent by the communication module to an external connection device to display the monitored value and the alarm indication. The gas detecting device of claim 7, wherein the communication module is at least one of a wired transmission module and a wireless transmission module. The gas detecting device of claim 8, wherein the wired transmission module is at least one of a USB, a mini-USB, and a micro-USB. The gas detecting device of claim 8, wherein the wireless transmission module is at least a Wi-Fi module, a Bluetooth module, a radio frequency identification module, and a near field communication module. one of them. The gas detecting device of claim 7, wherein the external connecting device is at least one of a cloud system, a portable device, a computer system, and the like. The gas detecting device of claim 7, further comprising a battery module for providing stored electrical energy, outputting electrical energy, and providing the electrical energy to the processor, such that the processor controls the gas transmitting actuator, The communication module, the valve, the sensor of the external sensor are activated, and can be connected with an external power supply device to receive and store the electrical energy. The gas detecting device of claim 12, wherein the power feeding device delivers the electric energy in a wired conduction manner to the battery module for storage. The gas detecting device of claim 12, wherein the power feeding device delivers the electric energy in a wireless conduction manner to the battery module for storage. The gas detecting device of claim 1, wherein the sensor of the external sensor comprises at least one of an oxygen sensor, a carbon monoxide sensor, and a carbon dioxide sensor or combination. The gas detecting device of claim 1, wherein the sensor of the external sensor comprises a volatile organic sensor. The gas detecting device of claim 1, wherein the sensor of the external sensor comprises at least one of monitoring a bacteria sensor, a virus sensor, and a microorganism sensor or a combination thereof. The gas detecting device of claim 1, wherein the sensor of the external sensor comprises at least one of a temperature sensor and a humidity sensor or a combination thereof. The gas detecting device of claim 7, wherein the valve comprises a holding member, a sealing member and a displacement member, wherein the displacement member is disposed between the holding member and the sealing member, and the holding member The sealing member and the displacement member respectively have a plurality of vent holes, and the positions of the plurality of through holes on the holding member and the displacement member are aligned with each other, and the positions of the plurality of through holes of the sealing member and the holding member are A misalignment misalignment is formed wherein the displacement member is controlled by the processor toward the holder to form the opening of the valve. The gas detecting device according to claim 19, wherein the displacement member is a charged material, and the holding member is a two-polar conductive material, and the processor controls the displacement member to maintain a different polarity from the holder. And approaching the holder to form the opening of the valve. The gas detecting device of claim 19, wherein the displacement member is a charged material, and the holding member is a two-polar conductive material, the processor controls the displacement member to maintain the same polarity as the holder And approaching the seal, forming the closure of the valve. The gas detecting device of claim 19, wherein the displacement member is a magnetic material, and the holding member is a magnetic material of controlled polarity, the processor controls the displacement member and the holder Different polarities are maintained and approached toward the retaining member to form the opening of the valve. The gas detecting device of claim 19, wherein the displacement member is a magnetic material, and the holding member is a magnetic material of controlled polarity, the processor controls the displacement member and the holder The same polarity is maintained and approaches the seal to form the closure of the valve.