CN210198433U

CN210198433U - Air quality detection device

Info

Publication number: CN210198433U
Application number: CN201921137178.5U
Authority: CN
Inventors: Fen Li; 李芬; Rui Peng; 彭锐; Yupei Lai; 赖玉珮
Original assignee: Shenzhen Institute of Building Research Co Ltd
Current assignee: Shenzhen Institute of Building Research Co Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-03-27
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses an air quality detection device, which comprises a fixed base, a detection component, a central control component and a display control component, wherein the detection component, the central control component and the display control component are arranged on the upper part of the fixed base and are connected through a support component; the detection assembly comprises a shell, a gas transmission part arranged in the shell and a detection part connected with the gas transmission part; the elastic fixing mechanism comprises a wall plate, an elastic component, a fixing bolt and a clamping plate which are arranged in the shell; the detector is suspended in the shell far away from the inner wall of the shell through the clamping plate, the elastic component and the wall plate which are connected in sequence. The utility model discloses an elasticity fixed establishment carries out the shock attenuation to the determine module who forms unsettled state, reduces because the outside rocks, or inside gaseous conveying portion takes place the problem of vibration under the control motor vibration of sheltering from of high-speed air supply or air current fan itself, improves determine module's stability, improves accuracy and monitoring data's accuracy.

Description

Air quality detection device

Technical Field

The utility model belongs to the technical field of the air quality detects, especially, relate to an air quality detection device.

Background

Along with rapid development of economy and improvement of science and technology in various regions, the air pollution degree is reflected by the quality of air quality detection, the air pollution degree is judged according to the concentration of pollutants in the air, along with the development of economy and the improvement of life taste, more and more people begin to pay attention to health and environmental protection, after a new family is well decorated, besides basic measures such as ventilation and placement of formaldehyde plants and charcoal bags, air quality conditions can be comprehensively detected by a plurality of people by adopting an air quality detector, the health of pregnant women, children, old people and family personnel is comprehensively protected, in construction sites and building regions, air quality in the regions needs to be detected in real time by using air detection equipment, and the safety of working environments of working personnel is improved.

In the existing air quality detection device, the internal detection elements such as sensors playing a role in detection are fixedly arranged on a main board fixedly connected with the shell, or directly arranged on the inner side wall of the shell, or fixedly connected with the shell through other mechanisms. When the air quality detection device operates, the fan supplies air to the inside high-speed of the air quality detection device, on one hand, the air flow fan has vibration to drive the inside detection element to resonate when operating, on the other hand, the high-speed air supply of the fan also causes certain resonance to the detection element, thereby reducing the accuracy of sensor data monitoring in the detection element due to the reduction of the stability of the detection element caused by vibration, and influencing the accuracy of monitoring data.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides an air quality detection device, include:

the device comprises a fixed base, a detection assembly, a central control assembly and a display control assembly, wherein the detection assembly, the central control assembly and the display control assembly are arranged on the upper part of the fixed base and are connected through a supporting assembly;

the detection assembly comprises a shell, a gas transmission part arranged in the shell and a detection part connected with the gas transmission part;

the upper end of the shell is provided with an airflow inlet used for introducing external air, the airflow inlet is connected with the air conveying part through an airflow pipeline, and the air conveying part conveys the external air sucked through the airflow pipeline to the detection part;

the detection part comprises an elastic fixing mechanism and a detector connected with the elastic fixing mechanism; the detector is used for detecting the outside air sucked by the gas transmission part;

the elastic fixing mechanism comprises a wall plate, an elastic component, a fixing bolt and a clamping plate which are arranged in the shell;

the wall plate is fixedly arranged on the inner wall of the shell through the fixing bolt, one end of the elastic component is connected with the wall plate, and the other end of the elastic component is connected with the clamping plate; one end of the clamping plate, which is different from the elastic component, is connected with the detector, and the detector is enabled to be far away from the inner wall of the shell and to be suspended in the air in the shell through the clamping plate, the elastic component and the wall plate which are sequentially connected;

the central control assembly is connected with the display control assembly and the detector through cables.

Preferably, at least two groups of elastic fixing mechanisms are arranged in the shell; wherein the content of the first and second substances,

the wall plate is arranged in the shell in a vertical direction and is fixedly attached to the vertical wall on the inner side of the shell through the fixing bolt;

the elastic component is a spring column; one end of the elastic component in the length direction is vertically connected with the wall plate, and the other end of the elastic component is connected with the clamping plate;

the clamping plate is arranged in parallel with the wall plate and is connected with the elastic component;

one end of each of the at least two groups of elastic fixing mechanisms is connected with the vertical wall on the inner side of the shell, and the other end of each of the at least two groups of elastic fixing mechanisms is connected with the detector, so that the detector is positioned in a suspended position far away from the inner wall of the shell in the shell.

Preferably, when the number of the elastic fixing mechanisms is even, the elastic fixing mechanisms are arranged in the shell in an axial symmetry manner;

when the number of the elastic fixing mechanisms is odd, the elastic fixing mechanisms are uniformly distributed in the shell in a circumferential manner.

Preferably, each group of the elastic fixing mechanisms is provided with at least two spring columns which are arranged in parallel.

Preferably, the gas transmission part comprises a coarse filter plate vertically arranged and an airflow fan arranged at the lower end of the coarse filter plate.

Preferably, the supporting component is vertically arranged on the upper end surface of the fixed base; the detection assembly is arranged at the top end of the upper part of the support assembly;

the display control assembly and the central control assembly are sequentially detachably connected to the supporting assembly from top to bottom.

Preferably, the display control assembly comprises a display control screen and a movable mechanism;

the movable mechanism comprises a connecting plate, an angle adjusting piece, a limiting plate and a limiting bolt;

the connecting plate is connected with the back side end of the display control screen, and one end of the connecting plate, which is different from the display control screen, is connected with the angle adjusting piece;

the angle adjusting piece is hinged with the limiting plate through the limiting bolt; the limiting plate is connected with the supporting assembly;

the display control screen can move relative to the limiting plate by taking the limiting shaft as an axis through the angle adjusting piece.

Preferably, the supporting component comprises a supporting rod connected with the fixed base and an adjusting mechanism arranged on the upper end face of the supporting rod;

the adjusting mechanism comprises a connecting seat, an electric push rod and a bearing piece;

the connecting seat is arranged at the upper end of the supporting rod, the electric push rod is connected with the connecting seat, and the supporting piece is arranged at the lower end of the detection assembly and is connected with the electric push rod;

the electric push rod is connected with the central control assembly through a cable;

the central control assembly controls the telescopic structure of the electric push rod to move up and down in the axial direction of the electric push rod on the basis of the axial direction of the detection assembly on the basis of the supporting piece.

Preferably, the device further comprises a shielding part connected with the shell;

the shielding part comprises a shielding control motor connected with the central control assembly through a cable, a stroke guide transmission part connected with the shielding control motor, and an inlet shielding part connected with the stroke guide transmission part;

the central control assembly controls the shielding control motor to output rotary power, the stroke guide transmission part receives the rotary power and drives the inlet shielding part to move in a preset stroke based on the rotary power, and shielding with an airflow circulation area is formed above the airflow inlet.

The utility model provides an air quality detection device, through in the casing, the elastic fixation mechanism who comprises wallboard, the elastomeric element who is connected with the wallboard and splint makes the detector is in keep away from in the casing the inner wall of casing and unsettled to gaseous conveying portion will deliver extremely through the inspiratory outside air of air current pipeline during detecting portion, carry out the shock attenuation to the determine module who forms unsettled state through elastic fixation mechanism, reduce because the outside rocks, or inside gaseous conveying portion takes place the problem of vibration under the control motor vibration that shelters from of high-speed air supply or air current fan itself, improves determine module's stability, improves accuracy and monitoring data's accuracy.

Drawings

Fig. 1 is a schematic overall structure diagram of an air quality detection device in an embodiment of the present application;

FIG. 2 is a schematic side view of a display control assembly of an air quality detection apparatus according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a detecting assembly of the air quality detecting apparatus according to the embodiment of the present application;

FIG. 4 is a schematic diagram of the circuit connection of the central control module of the air quality detecting apparatus according to the embodiment of the present application;

FIG. 5 is a structural diagram illustrating an open state of a shielding portion of a first embodiment of an air quality detecting apparatus according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram illustrating a closed state of a shielding portion of a first embodiment of an air quality detecting apparatus according to an embodiment of the present application;

FIG. 7 is a structural diagram illustrating an open state of a shielding portion of a second embodiment of an air quality detecting apparatus according to an embodiment of the present application;

fig. 8 is a structural schematic diagram of a closed state of a shielding portion of a second embodiment of an air quality detection device in an example of the present application.

Reference numerals:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1 to 8, the present embodiment provides an air quality detecting apparatus including:

the device comprises a fixed base 1, a detection assembly 2, a central control assembly 3 and a display control assembly 4, wherein the detection assembly 2, the central control assembly 3 and the display control assembly 4 are arranged on the upper part of the fixed base 1 and are connected through a supporting assembly 5;

the detection assembly 2 comprises a shell 21, a gas transmission part 22 arranged in the shell 21 and a detection part 23 connected with the gas transmission part 22;

the upper end of the housing 21 is provided with an air inlet 21a for introducing external air, the air inlet 21a is connected with the air transmission part 22 through an air flow pipeline 24, and the air transmission part 22 delivers the external air sucked through the air flow pipeline 24 to the detection part 23;

the detection part 23 comprises an elastic fixing mechanism 231 and a detector 232 connected with the elastic fixing mechanism 231; the detector 232 is used for detecting the outside air sucked by the gas delivery part 22;

the elastic fixing mechanism 231 comprises a wall plate 2311, an elastic part 2312, a fixing bolt 2313 and a clamping plate 2314 which are arranged in the shell 21;

the wall plate 2311 is fixedly arranged on the inner wall of the shell 21 through the fixing bolt 2313, one end of the elastic component 2312 is connected with the wall plate 2311, and the other end of the elastic component 2314 is connected with the clamping plate 2314; the clamp plate 2314 is connected to the detector 232 at an end different from the elastic member 2312, and the detector 232 is suspended away from the inner wall of the housing 21 in the housing 21 by the clamp plate 2314, the elastic member 2312 and the wall plate 2311 which are connected in sequence;

the central control component 3 is connected with the display control component 4 and the detector 232 through cables.

The elastic fixing mechanism 231 includes a wall plate 2311, an elastic member 2312, a fixing bolt 2313 and a clamping plate 2314; are all disposed within the housing 21. The wall plate 2311 is fixedly arranged on the inner wall in the casing 21, can be arranged on the inner wall at the vertical side position, and can also be arranged on the inner wall at the horizontal plane of the bottom surface, and the detection assembly 2 is far away from the inner wall of the casing 21 through the wall plate 2311, the elastic part 2312, the fixing bolt 2313 and the clamping plate 2314 to be in a suspended state, and is connected with the gas transmission part 22 through the gas flow pipeline 24.

The gas transmission part 22 and the detector 232 may be directly blown in the air with a certain distance, or may be connected through another gas flow pipe 24, and the end gas flow pipe 24 may be a flexible connection with a certain elasticity. Thereby further damping the sensing assembly 2.

As described above, the airflow inlet 21a is provided at the opening right above the housing 21, and receives the airflow from the upper direction, and guides the airflow through the internal air conveying part 22, that is, draws the air flowing upward, thereby introducing the external airflow into the housing 21.

The gas delivery section 22 may be the gas flow fan 222.

The air quality detection device comprises a fixed base 1, a support component 5, a detection component 2, a central control component 3 and a display control component 4. The support assembly 5 serves for a certain support and fixation of the upper assembly. Wherein detection module 2, well accuse subassembly 3 and show control module 4, all through the connection of supporting component 5, locate fixed baseplate 1's upper portion, detection module 2, well accuse subassembly 3 and show control module 4's position can be for arranging the setting from high to low in proper order, also can be for well accuse subassembly 3 at the bottom, show control module 4 at the top, detection portion 23 is in the centre, but its air inlet 21a is towards upper portion to in the air of detection upper end. Preferably, the detection component 2, the display control component 4 and the central control component 3 are sequentially arranged from top to bottom, and the supporting component 5 is connected to the fixed base 1.

The detector 232 is an element that can sample and detect the gas flow. For example, a sampling device may be included, as well as a sensor connected to the sampling device; the sensors may include, but are not limited to, a formaldehyde sensor, a PM2.5 sensor, a TVOC sensor, and a temperature and humidity sensor. The sensor is used for acquiring characteristic information data in the current sampling airflow in real time or at regular time and sending the characteristic information data to the central control component 3 for data processing, calculation and conversion so that environment monitoring personnel can master the acquired air quality in the environment conveniently.

Wherein, each sensor and technical index can be as follows:

1. the principle and technical indexes of the formaldehyde sensor are as follows:

the British DART two-electrode electrochemical sensor is adopted, and the formaldehyde sensor can really realize continuous measurement by a diffusion principle without pumping by an air pump and is approved by an authority department in the field of international formaldehyde detection. When formaldehyde exists, very small direct current can be generated, and the formaldehyde concentration is measured by combining a high-precision amplifying circuit and AD sampling.

The technical indexes are as follows:

measurement range: 0.00-5.00mg/m 3;

resolution ratio: 0.01mg/m 3;

and (3) measuring precision: plus or minus 5 percent;

the measurement principle is as follows: electrochemistry is carried out;

2. PM2.5 sensor principle and technical index:

the PM2.5 sensor may use a korean imported sensor, which uses a light scattering principle, and has an infrared light emitting diode and a phototransistor disposed diagonally inside, with their optical axes intersecting, and when dust-laden air passes through the intersection region where the optical axes intersect, the dust reflects infrared light, and the reflected light intensity is proportional to the dust concentration.

The technical indexes are as follows:

measurement range: 0-999ug/m 3;

resolution ratio: 1ug/m 3;

and (3) measuring precision: plus or minus 5 percent;

the measurement principle is as follows: light scattering;

3. TVOC sensor principle and technical index:

TVOC is a general name of total organic volatile matters, and TVOC has smell and irritation, can cause the maladjustment of organism immune level, influence the function of central nervous system, and have subjective symptoms of dizziness, headache, somnolence, weakness, chest distress and the like; it may also affect the digestive system, cause anorexia, nausea, etc., and in severe cases may damage the liver and hematopoietic system, cause allergic reactions, etc.

The measuring sensor may employ a korean imported sensor.

The technical indexes are as follows:

measurement range: 0.00-9.99mg/m 3;

resolution ratio: 0.01mg/m 3;

and (3) measuring precision: plus or minus 10 percent;

the measurement principle is as follows: a semiconductor.

4. Principle and technical index of temperature and humidity sensor:

the temperature and humidity sensor can adopt a Honeywell temperature and humidity sensor imported from the United states, and is subjected to factory calibration in the original factory, so that the precision is high, and the stability is good.

The technical indexes are as follows:

temperature range: -40-100 deg.C

And (3) measuring precision: 0.5 deg.C

Humidity range: 0-99% RH

And (3) measuring precision: . + -. 4% RH

In the air quality detection apparatus provided in this embodiment, the elastic fixing mechanism 231, which is composed of the wall plate 2311, the elastic component 2312 connected to the wall plate 2311 and the clamping plate 2314, makes the detector 232 suspend in the casing 21 away from the inner wall of the casing 21, so that when the gas conveying part 22 delivers the external air sucked through the gas flow pipeline 24 to the detection part 23, the elastic fixing mechanism 231 damps the detection assembly 2 in a suspended state, thereby reducing the problem of vibration caused by external shaking or vibration of the internal gas conveying part 22 under high-speed air supply or vibration of the shielding control motor 61 of the gas flow fan 222, improving stability of the detection assembly 2, and improving accuracy and accuracy of the monitored data.

In addition, the wall plate 2311 is vertically arranged inside the shell 21 of the detection part 23, so that when the wall plate 2311 works in the device, the wall plate 2311 can keep a corresponding vertical state, the working stability of the wall plate 2311 is improved, the stability of bearing parts on the wall plate 2311 is improved, and the running stability of the device is indirectly improved; meanwhile, the wall plate 2311 and the clamping plate 2314 form a clamping structure through the spring columns, when the device operates, a user fixes the detection equipment in the shell 21 of the detection part 23 through the clamping plate 2314 and the spring columns, and the detection equipment is guaranteed not to fall off from the shell 21 of the detection part 23 when in use.

Further, at least two sets of the elastic fixing mechanisms 231 are arranged in the shell 21; wherein the content of the first and second substances,

the wall plate 2311 is vertically arranged in the shell 21 and is attached and fixed with the vertical wall on the inner side of the shell 21 through the fixing bolt 2313;

the elastic part 2312 is a spring column; one end of the elastic member 2312 in the longitudinal direction is perpendicularly connected to the wall plate 2311, and the other end is connected to the clamping plate 2314;

said clamping plate 2314 is arranged parallel to said wall plate 2311 and is connected to said elastic member 2312;

one end of each of the at least two sets of elastic fixing mechanisms 231 is connected to the vertical wall inside the housing 21, and the other end of each of the at least two sets of elastic fixing mechanisms 231 is connected to the detector 232, so that the detector 232 is located in a suspended position far away from the inner wall of the housing 21 in the housing 21.

Two or more elastic fixing mechanisms 231 are respectively connected with the detection part 23, so that a further shock absorption and shock absorption effect is formed on the detection part 23 through a spring column which plays a certain shock absorption and elastic effect in each elastic fixing mechanism 231, the detector 232 is suspended in the shell 21 in a clamping mode or a pulling mode, and the suspended position is a suspended position which is parallel to the bottom surface (the length direction of the elastic part 2312) of the inner wall of the shell 21 and is far away from the inner wall of the shell 21. Preferably, it is suspended in the central portion of the housing 21.

Further, when the number of the elastic fixing mechanisms 231 is even, the elastic fixing mechanisms are arranged in the housing 21 in an axial symmetry manner;

when the number of the elastic fixing mechanisms 231 is odd, the elastic fixing mechanisms are uniformly distributed in the housing 21 in a circumferential manner.

As described above, the plurality of elastic fixing mechanisms 231 are disposed in the housing 21, so as to further improve the suspension stability of the detector 232, and when the number of elastic fixing mechanisms is even, the elastic fixing mechanisms can be arranged in an axisymmetric manner; when the number is odd, the detectors 232 may be uniformly arranged in a circumferential manner, so that the detectors 232 are clamped or pulled by the plurality of elastic fixing mechanisms 231, thereby forming a certain degree of stability in the space for the detectors 232, and when external force or vibration occurs, the detectors 232 buffer the vibration by the elastic members 2312 connected to the detectors 232, thereby improving the damping effect of the detectors 232.

Furthermore, each set of the elastic fixing mechanism 231 is provided with at least two spring posts arranged in parallel.

Above-mentioned, be equipped with more than two spring posts in every elastic fixation mechanism 231, further improved the effect of buffering, improved shock-absorbing performance.

Further, the gas transfer part 22 includes a coarse filter plate 221 vertically disposed, and an airflow fan 222 disposed at a lower end of the coarse filter plate 221.

As described above, the coarse filter 221 is disposed at the upper end of the airflow fan 222, and is configured to perform coarse filtering on an incoming external airflow, where the coarse filtering is mainly performed on impurities with a certain volume, such as large stone particles, leaves, coarse slag, and the like blown by wind, and the aperture of the filter screen is to ensure that the airflow is smooth on one hand and to ensure that main components in the airflow are not retained by the filter screen on the other hand, so as to affect final detection data. The arrangement of the coarse filter plate 221 prevents external large impurities from entering the airflow fan 222 and entering the detector 232 after the airflow is introduced by the airflow fan 222, so that the precision of the detector 232 is prevented from being influenced, the service lives of the airflow fan 222 and the detector 232 are prevented from being influenced, and the detection accuracy is improved.

Further, the supporting component 5 is vertically arranged on the upper end surface of the fixed base 1; the detection component 2 is arranged at the top end of the upper part of the support component 5;

the display control assembly 4 and the central control assembly 3 are sequentially detachably connected to the supporting assembly 5 from top to bottom.

Above-mentioned, supporting component 5 is the subassembly of dismantling the connection, can dismantle the connection, more makes things convenient for the portability of whole device.

The display control component 4 is higher than the central control component 3 in vertical height, so that the control and management of the whole device by detection personnel are facilitated.

The central control component 3 may include a power supply unit, a computer, and a cable connected to the computer. The computer may include a processor, a basic bus (motherboard), a storage device, and a port connected to a cable, and may further include a wired or wireless network port connected to a cloud. And the detection personnel can acquire the data of the local detection device through the APP of the client and control the function of the detection device.

The cable may include a data cable, a power cable, and the like.

Further, the display control assembly 4 includes a display control screen 41 and a movable mechanism 42;

the movable mechanism 42 comprises a connecting plate 421, an angle adjusting piece 422, a limiting plate 423 and a limiting bolt 424;

the connecting plate 421 is connected to the back end of the display control panel 41, and the end of the connecting plate 421 different from the display control panel 41 is connected to the angle adjuster 422;

the angle adjuster 422 is hinged with the limit plate 423 through the limit bolt 424; the limiting plate 423 is connected with the supporting component 5;

the display control panel 41 can move relative to the position-limiting plate 423 through the angle adjusting member 422 with the position-limiting shaft as an axis.

The display control panel 41 may be a liquid crystal touch screen, so that the central control component 3 is set and controlled by a tester through a touch screen. Meanwhile, the display control screen 41 can display the received and calculated data result or process in real time or at regular time, and can warn the detection personnel by means of improving contrast color, displaying striking color and the like of the screen when the control quality reaches a certain threshold value.

Above-mentioned, through the angle adjustment piece 422 and the articulated based on spacing bolt 424 of limiting plate 423, thereby make angle adjustment piece 422 can carry out angle adjustment for limiting plate 423, the connection can be dismantled with angle adjustment piece 422 to display control screen 41, display control screen 41 can remove along with angle adjustment piece 422's removal simultaneously, thereby under inspection personnel's the requirement, adjust this display control screen 41's angle, the device of being convenient for uses under different environment, improve the device and use the flexibility.

Above-mentioned, in the device, connecting plate 421, be swing joint between scheduling adjusting part and the display control screen 41, make display control screen 41 when using, if the unable normal operating that breaks down, this display control screen 41 of user's accessible screw dismantles, demolish back display control screen 41 from connecting plate 421, maintain the display screen, change, improve the maintenance ageing of part in the device, display control screen 41 passes through connecting plate 421 simultaneously, angle adjusting part 422 constitutes revolution mechanic with limiting plate 423, make the device when using, can the multi-angle show relevant information, the flexibility of user to the control and the observation of device has been improved. In addition, if air quality does not reach standard, behind the display control screen 41 is connected to relevant equipment in the device, the display screen warns and shows, reminds other people to the visual angle that the display screen was adjusted to the rotatable display control screen 41 of user, the device of being convenient for uses under different environment, improves the device and uses the flexibility.

Further, the support assembly 5 includes a support rod 51 connected to the fixed base 1, and an adjusting mechanism 52 disposed on an upper end surface of the support rod 51;

the adjusting mechanism 52 comprises a connecting seat 521, an electric push rod 522 and a supporting piece 523;

the connecting seat 521 is arranged at the upper end of the supporting rod 51, the electric push rod 522 is connected with the connecting seat 521, and the supporting piece 523 is arranged at the lower end of the detecting component 2 and connected with the electric push rod 522;

the electric push rod 522 is connected with the central control component 3 through a cable;

the central control component 3 controls the telescopic structure of the electric push rod 522 to move up and down in the axial direction of the electric push rod 522 of the detection component 2 based on the supporting member 523.

The electric push rod 522 has a telescopic structure and can move in a vertical direction within a certain stroke under the control of the central control unit 3, so that the height of the upper detection unit 2 can be adjusted by the support member 523. Specifically, the components of the electric push rod 522 may include a push rod control motor, a transmission unit, and a telescopic mechanism connected to the transmission unit; the push rod is controlled by the central control component 3 to control the motor, power is input to the transmission unit and transmitted to the telescopic mechanism, and the telescopic mechanism is extended or contracted.

The connected mode between electric putter 522 and the support 523 can be for the welding, thereby make electric putter 522 when using, support 523 can keep high connectivity to connect in electric putter 522 intelligence quotient, improve the joint strength between electric putter 522 and the support 523, indirectly increase the life of part in the device, electric putter 522 passes through support 523 and detection portion 23 and constitutes extending structure simultaneously, make the device when using, control subassembly 3 starts electric putter 522 in the user's accessible, make electric putter 522 drive support 523 remove, support 523 drives detection portion 23 and removes, test the air height that detection portion 23 detected, improve the accurate nature that the device detected.

Further, the device also comprises a shielding part 6 connected with the shell 21;

the shielding part 6 comprises a shielding control motor 61 connected with the central control component 3 through a cable, a stroke guide transmission piece 62 connected with the shielding control motor 61, and an inlet shielding piece 63 connected with the stroke guide transmission piece 62;

the central control component 3 controls the shielding control motor 61 to output rotary power, the stroke guide transmission member 62 receives the rotary power, and drives the inlet shielding member 63 to move in a preset stroke based on the rotary power, so as to form shielding with an airflow flowing area above the airflow inlet 21 a.

It should be noted that, when the quality control detection device works, it needs to work in different environmental areas and under different natural environmental conditions, and if there are heavy rainy and snowy weather, sand and dust storm, and heavy gravel under the current working conditions, the heavy gravel enters the detection portion 23 due to the airflow guiding effect, which affects the detection of the internal detector 232, and may even damage the detection device.

In order to solve the above problem, in the present embodiment, the shielding portion 6 is provided at the housing 21, and when the environmental condition has a certain influence on the data detection of the detector 232, a certain degree of shielding of the upper airflow inlet 21a can be realized by the shielding portion 6 connected to the housing 21. The shielding direction is above the airflow inlet 21a, so that large impurities falling vertically or at a certain angle, rain, snow and the like enter the airflow inlet 21a to be shielded, and an airflow circulation area of a certain area is reserved for ensuring the detection of air quality. That is, the airflow inlet 21a is shielded from rain and snow impurities, but the airflow is kept smooth.

Wherein, shelter from control motor 61 and well accuse subassembly 3 electricity and be connected to control subassembly 3 is to the control of sheltering from control motor 61 in realizing, shelters from control motor 61 output rotary power. The stroke guide transmission member 62 can receive power and transmit the power to move the inlet shielding member 63 in a certain stroke, and the stroke is changed into a preset stroke, and the specific size aims to shield the airflow inlet 21 a.

Specifically, the following embodiments may be included (refer to fig. 6 to 7):

the air quality detection device comprises two groups of shielding parts 6 which are respectively and symmetrically arranged at two ends of a shell 21; under the drive of the travel guide transmission member 62, the two symmetrical airflow inlet 21a shields move and are connected, and the lower end forms an airflow flowing area for external air to pass through, thereby shielding the upper part of the airflow inlet 21 a.

Embodiment 1:

the stroke guide transmission element 62 comprises a linear module 621, and a guide output element 622 is arranged on the linear module 621;

the inlet shutter 63 is a shutter; further, the shape of the shielding plate may include, but is not limited to, a square plate, a rectangular plate, an arc plate, a semicircular plate, and the like.

The guide output part 622 is hinged with the shielding plate, so that the shielding plate can rotate by taking the hinged part as an axis; preferably, the end of the guide output 622 is hinged to the area of the baffle other than the two ends;

a group of stroke guide transmission pieces 62 are symmetrically arranged at two ends of the outer wall of the detection part 23; a shielding plate is arranged on each corresponding stroke guide transmission piece 62;

the linear modules 621 on the two sides are connected with a shielding control motor 61 through internal screw rods, and the two shielding control motors 61 are connected with the central control component 3 and synchronously run under the control of the central control component 3;

in the closed state of the shielding part 6, the height of the inlet shielding pieces 63 at two ends of the outer wall of the detection part 23 is not higher than the height of the upper end surface of the detection part 23;

as described above, the height of the upper end surface of the detection portion 23 is not exceeded, and it is ensured that the airflow inlet 21a at the upper end of the detection portion 23 cannot be affected when the shielding portion 6 is not opened and is closed, and that inconvenience in transportation and a lack of beauty due to portions of both ends exceeding the height of the detection portion 23 are not caused.

Under the starting state of the shielding part 6, after the shielding control motor 61 operates, the guide output part 622 in the linear module 621 moves towards the upper end, so that the hinged shielding plates symmetrically arranged at two sides of the detection part 23 rotate along the axial direction of the hinged part under the action of gravity, and are respectively in lap joint with the shielding plates at the opposite ends, so that the shielding plates at two symmetrical ends are combined to shield the airflow inlet 21a at the lower end.

Embodiment 2:

the stroke guide transmission piece 62 comprises a driven wheel 623, a belt 624, a driving wheel 625 and a transmission gear;

the shielding control motor 61 is connected with the driving wheel 625 and can transmit power to the driven wheel 623 through the belt 624, the driven wheel 623 is connected with the transmission gear, and the transmission gear and the driven wheel 623 can synchronously rotate;

an inlet shutter 63, which is an arc shutter; and the arc-shaped inner ring is provided with engaging teeth which are engaged with the transmission gear;

the shell 21 of the detection part 23 is different from the symmetrical two ends of the airflow inlet 21a, and is provided with a baffle plate inlet and outlet for the arc baffle plate to come in and go out;

when the shielding part 6 is closed, the inlet and the outlet of the baffle plate are closed, and the arc-shaped shielding plate is positioned in the shell 21;

when the shielding part 6 is started, the inlet and the outlet of the baffle are opened, the shielding control motors 61 on the two sides are synchronously started to drive the driving wheel 625 to rotate, the driven wheel 623 is driven to rotate through the belt 624, and the transmission gear rotates synchronously with the driven wheel 623; based on the rotation of the transmission gear, the arc-shaped shielding plates correspondingly meshed with the transmission gears on the two sides extend out of the inlet and outlet of the baffle plate and are connected (lapped) above the airflow inlet 21a to form an arc-shaped arch bridge-shaped shielding area to form shielding. Since the arc-shaped arch bridge-shaped shielding region is provided with the airflow passage region for the outside airflow to flow, the airflow passage is not affected, and the airflow inlet 21a can be shielded.

When shielding is needed, the inlet shielding pieces 63 at the two ends extend out and are overlapped to form an integral shielding area, so that shielding is achieved as needed, and when shielding is not needed, the influence on the air inlet 21a is reduced, when shielding is needed, shielding on the air inlet 21a is rapidly carried out, the flowing of air flow cannot be influenced, on one hand, the accuracy of air quality detection is improved, and on the other hand, the situation that the shielding plates extend out when not needed, so that inconvenience in transportation and use and the influence on detection are avoided; on the other hand, the shielding plate is automatically overlapped to form shielding for the airflow inlet 21a, so that the convenience of operation is improved, and convenience is provided for controlling the operation of quality monitoring.

In addition, a sensor, such as a rain and snow sensor (capable of qualitatively detecting rain or snow in the environment, a rain sensing plate with a tin-plated annular curve on the surface of the product and a heating function inside and outputting a switching value signal) can be arranged at the airflow outlet, a transmitter is developed by adopting a mechanical internal structure circuit module technology and is used for measuring whether rain or snow exists, the device parameters can be 9V-24V DC, signal output is relay on/off, working power consumption is less than 30mA, protection grade is IP66, response time is 3s, and probe wire length is 1.5m, the sensor is connected with the central control component 3 and sends detection data to a processor in the central control component 3 when rain and snow are sensed, the central control component 3 controls a motor in the shielding part 6 to start when monitoring data reach a certain preset amount, so that the inlet shielding part 63 of the shielding part 6 forms shielding on the airflow inlet 21a, and when the sensor senses that the rainfall and snowfall stop, the inlet shielding piece 63 can be opened to stop shielding. Thereby when detecting the air quality to the environment, if need carry on the air of the longer unmanned on duty of time and detect, can carry out the perception to sleet weather automatically, and according to the condition of sleet weather, open or close sheltering from of shelter from portion 6 to air inlet 21a as required, thereby avoided inside entering sleet etc. to the interference factor of data monitoring, improve the accuracy that detects, and prevent inside because the influence to equipment that gets into sleet and cause, avoid causing equipment trouble and influence the check out test set life-span.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.

Claims

1. An air quality detection device, comprising:

2. The air quality detecting apparatus according to claim 1, wherein at least two sets of the elastic fixing means are provided in the housing; wherein the content of the first and second substances,

3. The air quality detecting apparatus according to claim 2, wherein the elastic fixing means is provided in an axial symmetry in the housing when the number of the elastic fixing means is an even number;

4. The air quality detecting apparatus according to claim 3, wherein each set of the resilient fixing means has at least two spring posts arranged in parallel.

5. The air quality detecting apparatus according to claim 4, wherein the gas delivery portion includes a vertically disposed coarse filter plate, and a gas flow fan provided at a lower end of the coarse filter plate.

6. The air quality detecting apparatus according to claim 1,

the supporting assembly is vertically arranged on the upper end face of the fixed base; the detection assembly is arranged at the top end of the upper part of the support assembly;

7. The air quality detection device of claim 1, wherein the display control assembly comprises a display control screen and a movable mechanism;

8. The air quality detecting device according to claim 7, wherein the support assembly includes a support rod connected to the fixed base, and an adjusting mechanism provided on an upper end surface of the support rod;

9. The air quality detection device of claim 1, further comprising a shield portion connected to the housing;