阅读说明：本技术 一种基于压电的自供电臭气处理及检测一体化设备 (Piezoelectricity-based self-powered odor treatment and detection integrated equipment ) 是由 梁英 曾庆昊 黄俪嘉 张程 袁绍军 于 2021-08-19 设计创作，主要内容包括：本申请公开了一种基于压电的自供电臭气处理及检测一体化设备,属于臭气处理领域,包括外壳、支架结构、压电纳米膜、循环结构、控制结构以及检测装置。本发明公开的基于压电的自供电臭气处理及检测一体化设备利用压电纳米膜来对臭气进行处理,气体送入外壳后对压电纳米膜产生冲击,压电纳米膜通过气压及气体流动产生机械振动,进而形成压电效应。在压电纳米膜工作时,一方面,利用压电效应作用于空气中氧分子可以产生氧化并降解臭气的超氧自由基,另一方面,由压电效应产生的电压能够带动检测装置工作。压电纳米膜用于臭气处理的同时,还能实现检测装置的自供电,清洁环保,节约能源。(The application discloses self-powered odor treatment and detection integrated equipment based on piezoelectricity belongs to the odor treatment field, and includes shell, supporting structure, piezoelectricity nanometer membrane, loop construction, control structure and detection device. The piezoelectric-based self-powered odor treatment and detection integrated equipment disclosed by the invention treats odor by utilizing the piezoelectric nano-film, gas is fed into the shell to impact the piezoelectric nano-film, and the piezoelectric nano-film generates mechanical vibration through air pressure and gas flow, so that a piezoelectric effect is formed. When the piezoelectric nano film works, on one hand, the piezoelectric effect is utilized to act on superoxide radicals which can oxidize oxygen molecules in the air and degrade odor, and on the other hand, the voltage generated by the piezoelectric effect can drive the detection device to work. The piezoelectric nano film is used for odor treatment, and meanwhile, self-power supply, cleanness, environmental protection and energy conservation of the detection device can be realized.)

1. The utility model provides a self-powered foul smell is handled and is detected integration equipment which characterized in that includes:

the air inlet, the air outlet, the first opening and the second opening are communicated with the cavity;

a support structure connected to the housing and located within the cavity;

the piezoelectric nano film is arranged on the support structure, the cavity is divided into an air inlet cavity and a detection cavity by the piezoelectric nano film, the air inlet and the first opening are communicated with the air inlet cavity, and the air outlet and the second opening are communicated with the detection cavity;

a circulation structure comprising a circulation tube, both ends of the circulation tube being in communication with the first opening and the second opening, respectively;

the control structure is used for controlling one of the air outlet and the circulating pipe to be in a communicated state and the other to be in a closed state at the same time; and

the detection device is arranged in the detection cavity and is electrically connected with the piezoelectric nano-film.

2. The integrated piezoelectric-based, self-powered odor treatment and detection device as recited in claim 1, wherein the control structure includes a slide slidably coupled to the housing, the slide sliding along a line connecting the air outlet and the second opening.

3. The piezoelectric-based self-powered odor treatment and detection integrated device as claimed in claim 2, wherein a chute is disposed on the housing, the air outlet and the second opening are both in communication with the chute, and the sliding piece is clamped in the chute.

4. The piezoelectric based self-powered odor treatment and detection integrated unit of claim 3 wherein said chute includes a first slot and a second slot, said first slot being disposed along a line connecting said air outlet and said second opening, and said air outlet and said second opening both being in communication with said first slot, said second slot being in communication with said first slot, and said second slot being in communication with said air outlet;

the sliding piece comprises a sliding part and a control part, and the sliding part is clamped in the first groove; the control part with the sliding part is connected, just the control part joint in the second inslot, the control part is in the gas outlet with the projected area of second open-ended connecting wire direction is greater than the sliding part is in the gas outlet with the projected area of second open-ended connecting wire direction.

5. The integrated piezoelectric-based, self-powered odor treatment and detection device of claim 4, wherein said control structure further comprises a resilient member mounted within said second slot, said resilient member urging said slide to have a tendency to move toward said air outlet.

6. The integrated piezoelectric-based, self-powered odor treatment and detection device of claim 5 wherein said housing further defines a first auxiliary groove and a second auxiliary groove;

the first auxiliary groove is positioned on one side of the air outlet, which is far away from the second opening, the first auxiliary groove is communicated with the air outlet, the first auxiliary groove is positioned on an extension line of the first groove, and the length of the first auxiliary groove is greater than or equal to the diameter of the second opening;

the second auxiliary groove is located on one side, away from the air outlet, of the second opening, the second auxiliary groove is communicated with the second opening, the second auxiliary groove is located on an extension line of the first groove, and the length of the second auxiliary groove is larger than or equal to the diameter of the air outlet.

7. The integrated piezoelectric-based self-powered odor treatment and detection device according to claim 1, wherein the piezoelectric nanomembrane comprises a piezoelectric film, a positive coil and a negative coil, the positive coil and the negative coil are respectively located at two sides of the piezoelectric film, the positive coil is electrically connected with a positive electrode of the detection device, and the negative coil is electrically connected with a negative electrode of the detection device.

8. The integrated piezoelectric-based, self-powered odor treatment and detection device of claim 1 wherein said mounting structure comprises:

the air outlet, the first opening and the second opening are all positioned between the two connecting covers;

the two ends of the handle are respectively connected with the two connecting covers; and

the mounting rack is arranged between the two connecting covers, and the piezoelectric nano film is connected with the mounting rack.

9. A piezoelectric-based self-powered odor treatment and detection integrated device as defined in claim 8, wherein a clamping groove is formed in the bottom of the housing, and the connecting cover is in clamping fit with the clamping groove.

10. A piezoelectric-based, self-powered, integrated odor treatment and detection device as defined in any one of claims 1 to 9, wherein said circulation structure further comprises a suction fan mounted to said circulation tube, said suction fan capable of flowing gas along said second opening towards said first opening.

Technical Field

The invention relates to the field of odor treatment, in particular to self-powered odor treatment and detection integrated equipment based on piezoelectricity.

Background

The malodorous pollutant refers to any gas which can stimulate the olfactory organ of a person to cause unpleasant sensation and damage to the living environment. The removal of malodorous gases can affect the mental state of people, and the malodorous gases can also cause damage to the nervous system, the digestive system, the endocrine system, the circulatory system and the respiratory system of people, thereby seriously affecting the physical health and the life quality of people. Malodorous pollution also becomes one of the seven environmental hazards in the world. With the development of economy, people become more conscious of environmental protection and have higher requirements on living environment. Therefore, the treatment of the malodorous gas is required to be highly regarded, and the development of an effective treatment technology for the malodorous gas pollutants is urgent.

In the conventional treatment apparatus, a deodorizing membrane is generally provided in a casing, a detection device is provided at an outlet of the casing, and when the detection device detects that the gas is acceptable, the gas can be discharged from the outlet, and when the detection device detects that the gas is not acceptable, the outlet is closed. The existing detection device needs to be provided with a power supply independently, the consumption of incoming call quantity is not small, and the installation and connection of the incoming call quantity and the incoming call quantity are troublesome.

Disclosure of Invention

The invention discloses a piezoelectric-based self-powered odor treatment and detection integrated device, which aims to solve the problems.

The technical scheme adopted by the invention for solving the technical problems is as follows:

based on the above purpose, the present invention discloses a piezoelectric-based self-powered odor treatment and detection integrated device, which comprises:

the method comprises the following steps:

the air inlet, the air outlet, the first opening and the second opening are communicated with the cavity;

a support structure connected to the housing and located within the cavity;

the piezoelectric nano film is arranged on the support structure, the cavity is divided into an air inlet cavity and a detection cavity by the piezoelectric nano film, the air inlet and the first opening are communicated with the air inlet cavity, and the air outlet and the second opening are communicated with the detection cavity;

a circulation structure comprising a circulation tube, both ends of the circulation tube being in communication with the first opening and the second opening, respectively;

the control structure is used for controlling one of the air outlet and the circulating pipe to be in a communicated state and the other to be in a closed state at the same time; and

the detection device is arranged in the detection cavity and is electrically connected with the piezoelectric nano-film.

Optionally: the control structure comprises a sliding sheet, the sliding sheet is connected with the shell in a sliding mode, and the sliding sheet slides along the air outlet and the connecting line direction of the second opening.

Optionally: the shell is provided with a sliding groove, the gas outlet and the second opening are communicated with the sliding groove, and the sliding piece is clamped in the sliding groove.

Optionally: the sliding groove comprises a first groove and a second groove, the first groove is arranged along the direction of a connecting line of the air outlet and the second opening, the air outlet and the second opening are both communicated with the first groove, the second groove is communicated with the first groove, and the second groove is communicated with the air outlet;

the sliding piece comprises a sliding part and a control part, and the sliding part is clamped in the first groove; the control part with the sliding part is connected, just the control part joint in the second inslot, the control part is in the gas outlet with the projected area of second open-ended connecting wire direction is greater than the sliding part is in the gas outlet with the projected area of second open-ended connecting wire direction.

Optionally: the control structure further comprises an elastic piece, the elastic piece is installed in the second groove, and the elastic piece enables the sliding piece to have a trend of moving towards the air outlet.

Optionally: the shell is also provided with a first auxiliary groove and a second auxiliary groove;

the first auxiliary groove is positioned on one side of the air outlet, which is far away from the second opening, the first auxiliary groove is communicated with the air outlet, the first auxiliary groove is positioned on an extension line of the first groove, and the length of the first auxiliary groove is greater than or equal to the diameter of the second opening;

the second auxiliary groove is located on one side, away from the air outlet, of the second opening, the second auxiliary groove is communicated with the second opening, the second auxiliary groove is located on an extension line of the first groove, and the length of the second auxiliary groove is larger than or equal to the diameter of the air outlet.

Optionally: the piezoelectric nano film comprises a piezoelectric film, a positive coil and a negative coil, wherein the positive coil and the negative coil are respectively positioned on two sides of the piezoelectric film, the positive coil is electrically connected with a positive electrode of the detection device, and the negative coil is electrically connected with a negative electrode of the detection device.

Optionally: the support structure includes:

the air outlet, the first opening and the second opening are all positioned between the two connecting covers;

the two ends of the handle are respectively connected with the two connecting covers; and

the mounting rack is arranged between the two connecting covers, and the piezoelectric nano film is connected with the mounting rack.

Optionally: the bottom of shell is provided with the draw-in groove, the connecting cover with the draw-in groove joint cooperation.

Optionally: the circulating structure further comprises an exhaust fan, the exhaust fan is mounted on the circulating pipe and can enable gas to flow towards the first opening along the second opening.

Compared with the prior art, the invention has the following beneficial effects:

the piezoelectric-based self-powered odor treatment and detection integrated equipment disclosed by the invention treats odor by utilizing the piezoelectric nano-film, gas is fed into the shell to impact the piezoelectric nano-film, and the piezoelectric nano-film generates mechanical vibration through air pressure and gas flow, so that a piezoelectric effect is formed. When the piezoelectric nano film works, on one hand, the piezoelectric effect is utilized to act on superoxide radicals which can oxidize oxygen molecules in the air and degrade odor, and on the other hand, the voltage generated by the piezoelectric effect can drive the detection device to work. The piezoelectric nano film is used for treating odor, and meanwhile, self power supply of the detection device can be realized, the detection device is clean and environment-friendly, energy is saved, and in addition, the piezoelectric nano film is directly electrically connected with the detection device without winding or slotting, so that the detection device is more convenient to install.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Figure 1 illustrates a schematic diagram of a piezoelectric-based self-powered odor treatment and detection integrated device disclosed in an embodiment of the present invention;

FIG. 2 illustrates a cross-sectional view of a housing disclosed in an embodiment of the present invention at a first perspective;

FIG. 3 illustrates a cross-sectional view of a housing disclosed in an embodiment of the present invention at a second perspective;

FIG. 4 is a schematic illustration of a stent structure disclosed in an embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating a control result in a first state according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating a control result in a second state according to an embodiment of the present invention;

FIG. 7 illustrates an enlarged partial view of the housing disclosed in an embodiment of the present invention;

FIG. 8 shows a schematic view of a slider disclosed in an embodiment of the present invention;

FIG. 9 shows a schematic diagram of a piezoelectric nanomembrane disclosed by an embodiment of the present invention;

FIG. 10 shows an exploded view of a piezoelectric nanomembrane disclosed by an embodiment of the present invention;

fig. 11 shows a schematic connection diagram of the piezoelectric nanomembrane and the detection device disclosed by the embodiment of the invention.

In the figure:

110-a housing; 111-an air inlet; 112-air outlet; 113-a first opening; 114-a second opening; 115-a cavity; 1151-an air intake cavity; 1152-a detection chamber; 116-a card slot; 117-a housing; 1771-first auxiliary tank; 1172-a second auxiliary tank; 1173-a first trough; 1174-a second trough; 1175-a chute; 118-a cap body; 119-a base; 120-a scaffold structure; 121-a connecting cover; 122-a handle; 123-a mounting rack; 130-piezoelectric nanomembranes; 131-positive coil; 132-a piezoelectric film; 133-negative coil; 140-a detection device; 150-a control structure; 151-sliding blade; 1511-sliding part; 1512-a control unit; 152-a resilient member; 160-cycle structure; 161-circulation pipe; 162-an exhaust fan.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as disclosed in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example (b):

referring to fig. 1 to 11, an embodiment of the present invention discloses a piezoelectric-based self-powered integrated odor treatment and detection device, which includes a housing 110, a support structure 120, a piezoelectric nanomembrane 130, a circulation structure 160, a control structure 150, and a detection device 140. The support structure 120 is made of polytetrafluoroethylene material, and the support structure 120 is used for supporting the piezoelectric nano-film 130, so that the piezoelectric nano-film 130 is more convenient to mount and dismount. The piezoelectric nanomembrane 130 is electrically connected with the detection device 140, and the voltage generated by the piezoelectric nanomembrane 130 is used for driving the detection device 140 to work. The circulation structure 160 is used to circulate the odor within the casing 110, and the control structure 150 is used to control the opening and closing of the circulation structure 160.

The piezoelectric-based self-powered integrated odor treatment and detection device disclosed in this embodiment utilizes the piezoelectric nanomembrane 130 to treat odor, and after the gas is sent into the shell 110, the gas impacts the piezoelectric nanomembrane 130, and the piezoelectric nanomembrane 130 generates mechanical vibration through gas pressure and gas flow, thereby forming a piezoelectric effect. When the piezoelectric nanomembrane 130 works, on one hand, the piezoelectric effect is utilized to act on the superoxide radical which can oxidize and degrade odor in air, and on the other hand, the voltage generated by the piezoelectric effect can drive the detection device 140 to work. The piezoelectric nano film 130 can be used for treating odor, and meanwhile, the self-power supply, the cleanness and the environmental protection of the detection device 140 can be realized, the energy is saved, in addition, the piezoelectric nano film 130 is directly electrically connected with the detection device 140, the winding or the slotting and the like are not needed, and the installation of the detection device 140 is more convenient.

The housing 110 includes a cover 118, a case 117, and a base 119, the base 119 is made of teflon, the case 117 is made of quartz glass, the case 117 is installed between the base 119 and the cover 118, the case 117, and the base 119 are connected to form a cavity 115. The cover 118 is provided with an air inlet 111, the housing 117 is provided with an air outlet 112, a first opening 113 and a second opening 114, and the air outlet 112, the first opening 113 and the second opening 114 are sequentially arranged from bottom to top at intervals along the height direction of the housing 117. The air inlet 111, the air outlet 112, the first opening 113 and the second opening 114 are all in communication with the cavity 115.

The support structure comprises a mounting frame 123, a handle 122 and two oppositely arranged connecting caps 121. The two connection covers 121 are disposed opposite to each other, and the connection covers 121 can move in the height direction of the housing 110. A guide groove (not shown) is formed in the housing 117, the guide groove extends along the height direction of the housing 117, the top of the guide groove extends to the top port of the housing 117, and the connection cover 121 is clamped in the guide groove. The base 119 is provided with a clamping groove 116, the clamping groove 116 is arranged along the circumferential direction of the base 119, the clamping groove 116 is communicated with the guide groove, and when the connecting cover 121 moves along the guide groove, the connecting cover can be clamped into the clamping groove 116. The guide groove and the card slot 116 are provided to restrict the movement of the connection cover 121, and finally, the connection cover 121 is fixed by the card slot 116.

When the connecting cover 121 is installed in the cavity 115, the connecting cover is attached to the shell 117, the air outlet 112, the first opening 113 and the second opening 114 are arranged at intervals with the connecting cover 121, and the air outlet 112, the first opening 113 and the second opening 114 are arranged between the two connecting covers 121. When the cross section of the outer casing 110 is rectangular, the connecting covers 121 may be flat, the two connecting covers 121 are respectively located on two opposite side walls of the outer casing 110, and the air outlet 112, the first opening 113 and the second opening 114 are all located on the other pair of side walls of the outer casing 110; when the cross section of the housing 110 is circular, the connecting covers 121 are arc-shaped, and the central angle corresponding to the connecting covers 121 is smaller than 150 degrees, so that the two connecting covers 121 are spaced from each other, and the air outlet 112, the first opening 113 and the second opening 114 are conveniently arranged.

Both ends of the handle 122 are connected to the two connection covers 121, respectively, and when the handle 122 is lifted, the two connection covers 121 can be lifted or put into the housing 110. The handle 122 is provided to facilitate control of the connection cover 121, and at the same time, the connection stability of the connection cover 121 and the housing 110 can be increased by connecting the two connection covers 121 together through the handle 122.

The mounting bracket 123 is installed between two connection covers 121, and the mounting bracket 123 is located the handle 122 below, and the mounting bracket 123 can be the joint on connecting cover 121, or other connection methods such as welding, bonding are also possible. The piezoelectric nanomembrane 130 is mounted on the mounting bracket 123, and the piezoelectric nanomembrane 130 can be supported and fixed by the mounting bracket 123. The handle 122 is lifted to drive the connecting cover 121, the mounting frame 123 and the piezoelectric nanomembrane 130 to enter and exit the housing 110, so as to facilitate the installation or replacement of the piezoelectric nanomembrane 130.

In this embodiment, the mounting frame 123 may be provided in plurality, the laminated electrical nano-film 130 is mounted on each mounting frame 123, and the plurality of mounting frames 123 are provided at intervals in the height direction of the connection cap 121. The provision of the plurality of mounting brackets 123 and the plurality of piezoelectric nanomembranes 130 can improve deodorization efficiency, and can maximize utilization and absorption of impact force when air flows enter the cavity 115.

The piezoelectric nanomembrane 130 comprises a piezoelectric film 132, a positive coil 131 and a negative coil 133, wherein the positive coil 131 and the negative coil 133 are respectively positioned at two sides of the piezoelectric film 132, the positive coil 131 is electrically connected with a positive electrode of the detection device 140, and the negative coil 133 is electrically connected with a negative electrode of the detection device 140. When the piezoelectric film is mounted, the positive coil 131 or the negative coil 133 is connected to the mounting frame 123, and the piezoelectric film 132 is spaced apart from the mounting frame 123 by a predetermined distance, so that the piezoelectric film 132 can vibrate when being impacted by gas.

The piezoelectric film 132 may be made of barium titanate or polyvinylidene fluoride, and the positive coil 131 and the negative coil 133 may be made of copper foil or aluminum foil.

As an environment-friendly material, barium titanate (bario 3) has significant dielectric constant and piezoelectric properties, and a flexible piezoelectric nanocomposite material prepared by combining Nanoparticles (NPS) and a polymer is not easily deformed and can be conveniently manufactured into various complex shapes. Polyvinylidene fluoride (PVDF) and its copolymers have high flexibility and excellent mechanical properties.

PVDF is a semi-crystalline polymer with five different forms of crystalline phases, namely alpha, beta, gamma, delta, and epsilon, with the alpha and beta phases being the most common crystalline structures. PVDF of crystal structure has remarkable piezoelectric, pyroelectric and ferroelectric properties, and as an important electroactive polymer, it has been widely used in the fields of sensors, actuators and energy harvesting. It is known that β in PVDF is very important with respect to piezoelectric performance. Therefore, various methods such as melt casting, solution deposition, spin coating and phase inversion have been applied to form the β phase. Recently, electrospinning has become an effective method for forming a high content of β -phase, further enhancing piezoelectricity, because mechanical stretching and high electric field may exhibit local polishing during electrospinning, and non-polarized α -phase may be transformed into β -phase structure using high voltage.

After the support structure 120 is installed in the cavity 115, the piezoelectric nanomembrane 130 divides the cavity 115 into an air inlet cavity 1151 and a detection cavity 1152, the air inlet 111 and the first opening 113 are communicated with the air inlet cavity 1151, and the air outlet 112 and the second opening 114 are communicated with the detection cavity 1152. When entering the housing 110, the gas first locates in the gas inlet cavity 1151, then flows towards the piezoelectric nanomembrane 130, and enters the detection cavity 1152 after being processed by the piezoelectric nanomembrane 130.

The detection device 140 is mounted on the base 119, and the plurality of piezoelectric nanomembranes 130 are sequentially connected in series and then electrically connected to the detection device 140. The detection device 140 is used to detect whether the odor of the gas in the detection chamber 1152 is qualified, if the gas is qualified, the gas can be discharged from the gas outlet 112, and if the gas is not qualified, the gas is sent into the gas inlet chamber 1151 through the circulation structure 160 for treatment until the gas is qualified.

The circulation structure 160 includes a circulation pipe 161 and an exhaust fan 162, both ends of the circulation pipe 161 are respectively communicated with the first opening 113 and the second opening 114, and the exhaust fan 162 is installed on the circulation pipe 161. When the exhaust fan 162 is operated, gas can be sent into the gas inlet cavity 1151 from the detection cavity 1152, and the gas in the detection cavity 1152 enters the circulating pipe 161 along the second opening 114 and then enters the gas inlet cavity 1151 along the first opening 113 to form a circulation. In addition, the exhaust fan 162 is arranged to prevent the gas in the detection cavity 1152 from directly passing through the piezoelectric nanomembrane 130 and returning to the gas inlet cavity 1151, so as to protect the piezoelectric nanomembrane 130.

The control structure 150 is used to control the air outlet 112 and the circulation pipe 161 to be in a communication state and a closed state at the same time. Specifically, the control structure 150 includes a slide 151 and an elastic member 152.

The sliding piece 151 is slidably connected to the housing 110, and the sliding piece 151 slides along a connecting line between the air outlet 112 and the second opening 114. The sliding piece 151 may be manually controlled, and an alarm (not shown), such as an electronic alarm, may be disposed on the detection device 140, where the alarm is electrically connected to the detection device 140, and when the detection device 140 detects that the gas in the detection cavity 1152 is not qualified, the alarm is controlled to alarm, and after the alarm is heard, the sliding piece 151 may be controlled to close the gas outlet 112, and the second opening 114 is opened, so as to circulate the gas.

A sliding groove 1175 is formed in the side wall of the housing 117, the air outlet 112 and the second opening 114 are communicated with the sliding groove 1175, and the sliding piece 151 is clamped in the sliding groove 1175. When the sliding piece 151 slides toward the second opening 114, the second opening 114 is closed, and the air outlet 112 is opened; when the slider 151 moves toward the air outlet 112, the air outlet 112 is closed and the second opening 114 is opened.

In the present embodiment, the chute 1175 includes a first slot 1173 and a second slot 1174, the first slot 1173 is disposed along a direction of a connecting line of the air outlet 112 and the second opening 114, and both the air outlet 112 and the second opening 114 communicate with the first slot 1173, the second slot 1174 communicates with the first slot 1173, and the second slot 1174 communicates with the air outlet 112. Referring to fig. 6, the first groove 1173 has a length greater than that of the second groove 1174, the gas outlet 112 and the second opening 114 are respectively located at both ends of the first groove 1173, one end of the second groove 1174 is communicated with the gas outlet 112, and the other end of the second groove 1174 is spaced apart from the second opening 114.

The slider 151 includes a slide portion 1511 and a control portion 1512, and the slide portion 1511 is engaged with the first groove 1173. Control unit 1512 is connected to slide unit 1511, and control unit 1512 is fitted in second groove 1174, and the projected area of control unit 1512 in the direction of the line connecting air outlet 112 and second opening 114 is larger than the projected area of slide unit 1511 in the direction of the line connecting air outlet 112 and second opening 114.

When the detection device 140 detects that the gas in the detection chamber 1152 is not qualified, the sliding piece 151 slides towards the gas outlet 112, and closes the gas outlet 112, at this time, the second opening 114 is opened, and the gas flows back into the gas inlet chamber 1151 along the second opening 114. However, the external air may enter the chamber 115 along the inlet 111, so that the pressure inside the chamber 115 is gradually increased. The pressure in the cavity 115 is converted into the pressure on the sliding vane 151, when the air outlet 112 is closed, the pressure on the control part 1512 is from bottom to top, the pressure on the sliding part 1511 is from top to bottom, and since the projection area of the control part 1512 in the direction of the connecting line between the air outlet 112 and the second opening 114 is larger than the projection area of the sliding part 1511 in the direction of the connecting line between the air outlet 112 and the second opening 114, the upward thrust on the sliding vane 151 is larger than the downward thrust, the sliding vane 151 has a tendency of moving upward as a whole, and as the pressure in the cavity 115 gradually increases, the sliding vane 151 is pushed to move toward the second opening 114, and the air outlet 112 is opened. On the one hand, this can avoid excessive pressure in the cavity 115, thereby protecting the housing 110 and the various components therein; on the other hand, as the pressure in the cavity 115 increases, the gas completes a plurality of cycles, which substantially meets the discharge requirement, and at this time, the sliding piece 151 automatically opens the gas outlet 112, which is more convenient.

The elastic member 152 is installed in the second groove 1174, and the elastic member 152 is installed between the control part 1512 and the housing 117, and the elastic member 152 makes the sliding piece 151 have a tendency to move toward the air outlet 112. The elastic member 152 can prevent the air outlet 112 from being opened immediately when the pressure in the cavity 115 increases the sliding vane 151, and the sliding vane 151 needs to receive a sufficient pushing force when the air outlet 112 is opened by the sliding vane 151, and thus, a sufficient pressure in the cavity 115 is required. By controlling the elastic coefficient of the elastic member 152, the pressure in the cavity 115 can be controlled to a predetermined level, and the air outlet 112 is opened, so as to protect the housing 110 and the components therein.

Further, the housing 117 is also provided with a first auxiliary groove 1171 and a second auxiliary groove 1172.

The first auxiliary groove 1171 is positioned on a side of the air outlet 112 facing away from the second opening 114, the first auxiliary groove 1171 is communicated with the air outlet 112, the first auxiliary groove 1171 is positioned on an extension line of the first groove 1173, and the length of the first auxiliary groove 1171 is greater than or equal to the diameter of the second opening 114. The second auxiliary groove 1172 is located on a side of the second opening 114 facing away from the air outlet 112, the second auxiliary groove 1172 is communicated with the second opening 114, and the second auxiliary groove 1172 is located on an extension line of the first groove 1173, and a length of the second auxiliary groove 1172 is greater than or equal to a diameter of the air outlet 112.

When the first auxiliary groove 1171 and the second auxiliary groove 1172 are provided, the length of the sliding portion 1511 is increased correspondingly. When air outlet 112 is opened, the end of sliding portion 1511 facing away from air outlet 112 enters second auxiliary groove 1172; when the second opening 114 is opened, the sliding portion 1511 enters into the first auxiliary groove 1171. Thus, in use, when sliding portion 1511 slides towards air outlet 112, sliding portion 1511 just leaves second auxiliary groove 1172 after sliding portion 1511 completely closes air outlet 112, and second opening 114 can be opened when sliding portion 1511 moves further, and vice versa. Thereby ensuring that only one of the air outlet 112 and the second opening 114 is open and the other is closed at the same time.

The piezoelectric-based self-powered odor treatment and detection integrated equipment disclosed by the embodiment works as follows:

firstly, gas is introduced into the gas inlet cavity 1151 from the gas inlet 111, the gas enters the detection cavity 1152 after being processed by the piezoelectric nano film 130, and in the process, the piezoelectric nano film 130 generates electricity to supply the detection device 140 to work.

When the detection device 140 detects that the gas is qualified, the gas in the detection cavity 1152 is directly discharged from the gas outlet 112; when the detection device 140 detects that the gas is unqualified, the alarm is controlled to give an alarm, then the sliding piece 151 is controlled to close the gas outlet 112, and the second opening 114 is opened.

After the air outlet 112 is closed, the gas in the detection chamber 1152 returns to the air inlet chamber 1151 along the second opening 114 and the circulating pipe 161 for further processing, and the pressure in the chamber 115 begins to increase as the time for which the air outlet 112 is closed increases and the air is continuously fed into the air inlet 111.

When the pressure in the chamber 115 reaches a predetermined value, the sliding piece 151 is pushed by the pressure to close the second opening 114, and the circulation structure 160 stops working. At this time, the gas outlet 112 is opened, and the gas in the detection cavity 1152 can continue to be discharged outwards.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.