CN113092687A - Urban environment air detection and automatic sampling device - Google Patents
Urban environment air detection and automatic sampling device Download PDFInfo
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- CN113092687A CN113092687A CN202110385815.6A CN202110385815A CN113092687A CN 113092687 A CN113092687 A CN 113092687A CN 202110385815 A CN202110385815 A CN 202110385815A CN 113092687 A CN113092687 A CN 113092687A
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- 230000007613 environmental effect Effects 0.000 claims 6
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- 238000009434 installation Methods 0.000 description 4
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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Abstract
The utility model provides an urban environment empty gas detection surveys and automatic sampling device, relates to the empty gas detection surveys field, including device shell, empty gas detection surveys device and display screen, step motor, air intake module, intake pipe, driving gear and driven gear are installed on the inner chamber upper portion of device shell, the input port and the delivery outlet of intake pipe communicate respectively in empty gas detection surveys device's detection air cavity and air intake module's inner chamber. According to the invention, the drawing box and the gas collecting bottles are arranged, ten gas collecting bottles are used for collecting air, different gas collecting bottles can be used for collecting gas at different places and time, and each gas collecting bottle realizes the functions of one-way gas inlet and one-way gas outlet through the top gas inlet valve and the bottom gas outlet valve, so that a relatively closed and isolated space is formed inside the gas collecting bottle, gas is prevented from leaking out, or external gas enters, and the quality and the fidelity of the gas collected by the gas collecting bottles are greatly improved.
Description
Technical Field
The invention belongs to the technical field of air detection and sampling, and particularly relates to an urban environment air detection and automatic sampling device.
Background
Urban environment air detection is that harmful substance concentration is detected after air is collected, so that air quality is judged and used as one of important indexes for judging environment quality.
However, the existing air environment monitoring instrument is not perfect in air collection, most of the existing air environment monitoring instruments can only monitor the current air quality, but cannot effectively collect the current air, so that the inconvenient places are brought to the follow-up laboratory research, the collection of the air needs to be carried out in different time periods, or the air in different environments is collected, and the research result in the laboratory only has certain reference value.
If the air is automatically collected, a plurality of collecting bottles are used simultaneously, and the isolation of different collecting bottles during air intake is not affected, the problem needs to be solved.
Disclosure of Invention
The invention aims to provide an urban environment air detection and automatic sampling device to solve the problems in the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides an urban environment empty gas detection surveys and automatic sampling device, includes device shell, empty gas detection surveys device and display screen, step motor, air intake module, intake pipe, driving gear and driven gear are installed on the inner chamber upper portion of device shell, the input port and the delivery outlet of intake pipe communicate respectively in empty gas detection surveys device's detection air cavity and air intake module's inner chamber, air intake module be provided with two and respectively with driving gear and driven gear fixed connection, step motor's output shaft and driving gear fixed connection, the meshing is connected between driving gear and the driven gear.
The gas collecting device is characterized in that a drawing box is arranged below the gas inlet module, a mounting plate is fixedly mounted at the top of the drawing box, a gas collecting bottle is mounted between the mounting plate and the drawing box, a rubber snap ring is mounted on the surface of the mounting plate, the top and the bottom of the rubber snap ring are respectively in butt joint with the gas inlet module and the gas collecting bottle, a first magnet and a second magnet are respectively and fixedly mounted at the bottom of the device shell and the drawing box, and the first magnet and the second magnet are attracted and attached.
Preferably, the air inlet module includes external sleeve, gas outlet, rubber tube and blast pipe, the gas outlet sets up in external sleeve's surface and its opening down, the rubber tube is fixed cup jointed in external sleeve's inside, the blast pipe activity is cup jointed in the inside of rubber tube, external sleeve, rubber tube and blast pipe are provided with two sets ofly, two the outer end of blast pipe respectively with driving gear and driven gear fixed connection, the inner chamber of blast pipe and the output intercommunication of intake pipe, intake pipe and empty gas detection surveys device's detection chamber intercommunication, enters into the blast pipe through the intake pipe when detecting the gaseous emission in the chamber.
Preferably, the blast pipe includes pipe body and gas vent, five have been seted up on the surface of single pipe body to the gas vent, adjacent two be thirty six degrees and equal along distance between every gas vent of horizontal direction along pipe body axial contained angle between the gas vent, step motor drives the blast pipe and every rotatory thirty-six degrees, will have a gas vent orientation under to align the intercommunication with the gas outlet.
Preferably, the gas collecting bottle includes bottle body and top admission valve and bottom air outlet valve, top admission valve and bottom air outlet valve are fixed mounting respectively in the top and the bottom of bottle body, the specification and the effect of top admission valve and bottom air outlet valve are the same, bottle body movable mounting is on the pull box, and bottom air outlet valve and top admission valve cooperation constitute an airtight space with the bottle body, and the air current can get into from top admission valve department, and bottom air outlet valve department discharges, and during the collection gas, top admission valve department admits air, causes the inside atmospheric pressure increase of bottle body, so bottom air outlet valve department begins the exhaust, and this process is beginning for taking a breath, with the gas cleanup of the original in the bottle body inner chamber, it can about a minute to ventilate.
Preferably, the top admission valve is formed by valve housing, spring and valve head combination, valve housing's inboard upper portion is provided with the spacer, and the definition spacer divide into two parts about valve housing's inboard, the spring sets up in valve housing inboard lower part, the bottom of valve head sets up in the inboard lower part of valve housing, and the top of valve head sets up in the inboard upper portion of spacer, the bottom of valve head and the top contact of spring, valve housing fixed mounting is in the top of bottle body, under the initial condition, because the spring action of spring, cause the bottom of valve head and laminate in the spacer, and the perpendicular groove in valve head top extends the spacer, does not have the passageway of the circulation of admitting air.
Preferably, the top of valve head is for seting up the cylindric of five perpendicular grooves, the bottom of valve head is a discoid who sets up four logical grooves, the bottom of valve head is blocked in the centre by spring and spacer, under the initial condition, the chassis of valve head and the bottom surface of spacer are laminated mutually, when admitting air, gaseous can promote the valve head down, the compression of spring atress, the chassis of valve head and spacer break away from the laminating state, when the top of valve head is erected the groove and is extended to valve housing's inboard lower part timesharing through the spacer, then the air current enters into valve housing along the logical groove of erecting groove and valve head bottom, the through-hole of rethread valve housing bottom enters into bottle body inner chamber, the exhaust principle of bottom air outlet valve is the same.
Preferably, a circular through hole is formed in the bottom surface of the spring, and the inner cavity of the valve shell is communicated with the inner cavity of the bottle body through the circular through hole in the bottom of the valve shell.
Preferably, the gas outlet is provided with five and be equidistance inline on outside sheathed tube surface, five equidistance inline's through-hole have been seted up on the surface of rubber tube, every through-hole on rubber tube surface and the gas outlet one-to-one on outside sheathed tube surface communicate, and the effect that the rubber tube played here is to gassing and inclosed effect, and the outer wall of blast pipe and the inner wall of rubber tube laminate mutually, so only when the through-hole on gas vent and rubber tube surface aligns, the blast pipe inner chamber just can be given vent to the air along the gas outlet.
Preferably, the horizontal distance between each exhaust port is equal to the distance between two adjacent air outlets, the exhaust ports can be aligned with the air outlets and the through holes on the surface of the rubber tube one by rotating, only one exhaust port of the total ten exhaust ports distributed on the two exhaust pipes is aligned with the air outlets one by one in an initial state, then, when the stepping motor rotates three sixteen degrees each time, the next exhaust port is aligned with the air outlets, and so on, after the five exhaust ports on one exhaust pipe are respectively aligned one by one, the exhaust ports face the inner wall of the rubber tube and cannot be ventilated, the other exhaust pipe can be aligned with the air outlets distributed on the surface of the other exhaust pipe in further rotation one by one, after the output shaft of the stepping motor rotates one circle, the exhaust ports on the two exhaust pipes are all aligned with the air outlets one by one, and respectively corresponding to the air outlets at different positions.
Preferably, two gas vent distribution form on the blast pipe is different, two the gas vent on blast pipe surface distributes respectively on two half faces of blast pipe symmetry, because the axial contained angle between two adjacent gas vents of same root blast pipe is thirty six degrees, then the shared axial contained angle of five gas vents is one hundred forty four degrees, so it has five gas vents to distribute on this blast pipe half face, do not have the gas vent on another half face, another blast pipe also uses same angular distribution to have the gas vent, like figure 3, set for the gas vent that is located the blast pipe right-hand member as the initial hole, then the contained angle is two hundred sixteen degrees between the initial hole on two blast pipes, this contained angle direction is the same with step motor's output shaft direction of rotation.
The invention has the following beneficial effects:
1. according to the invention, the drawing box and the gas collecting bottles are arranged, ten gas collecting bottles are used for collecting air, different gas collecting bottles can be used for collecting gas at different places and time, and each gas collecting bottle realizes the functions of one-way gas inlet and one-way gas outlet through the top gas inlet valve and the bottom gas outlet valve, so that a relatively closed and isolated space is formed inside the gas collecting bottle, gas is prevented from leaking out, or external gas enters, and the quality and the fidelity of the gas collected by the gas collecting bottles are greatly improved.
2. According to the invention, the exhaust port is formed on the surface of the exhaust pipe, the function of closing the exhaust pipe and the air outlet together is formed by matching the rubber pipe and the air outlet, the exhaust pipe is driven by the stepping motor to rotate, and gas can be injected into a new gas collecting bottle when the exhaust pipe rotates for thirty-six degrees.
3. According to the invention, two groups of air inlet modules are designed, and the included angle of the initial air outlet on the surfaces of the two groups of exhaust pipes is two hundred and ten degrees, so that the two groups of air inlet modules can respectively supply air to two groups of parallel air collecting bottles, the postures of the two groups of air inlet modules return to the initial positions every time the output shaft of the stepping motor rotates for one circle, and multiple rows of air collecting bottles can be customized according to the requirement on products as the air collecting modules according to the air inlet mode, and the mounting plate, the pull box and the air collecting bottles are integrally designed into a drawer shape, so that the installation is simple and convenient.
Drawings
FIG. 1 is an internal schematic view of the present invention;
FIG. 2 is an overall schematic view of the gas intake module and the gas collection module of the present invention;
FIG. 3 is an exploded view of the intake module of the present invention;
FIG. 4 is a schematic view of the exhaust pipe according to the present invention;
FIG. 5 is a bottom view of the outer sleeve, the air outlet and the rubber tube of the present invention;
FIG. 6 is an exploded view of the mounting plate, the gas collection bottle and the drawer housing of the present invention;
FIG. 7 is an overall schematic view of a gas collection bottle of the present invention;
FIG. 8 is an exploded view of the top intake valve of the present invention;
FIG. 9 is a cross-sectional view of the top intake valve of the present invention;
FIG. 10 is a schematic view of the construction of the rubber snap ring and the mounting plate of the present invention;
fig. 11 is a partial schematic view of the bottom structure of the present invention.
In the figure: 1. a device housing; 2. an air detection device; 3. a display screen; 4. a stepping motor; 5. an air intake module; 51. an outer sleeve; 52. an air outlet; 53. a rubber tube; 54. an exhaust pipe; 541. a tube body; 542. an exhaust port; 6. an air inlet pipe; 7. a driving gear; 8. a driven gear; 9. mounting a plate; 10. a box is drawn out; 11. a gas collection bottle; 111. a bottle body; 112. a top air intake valve; 1121. a valve housing; 1122. a spacer; 1123. a spring; 1124. a valve head; 113. a bottom gas outlet valve; 12. a first magnet; 13. a second magnet; 14. a rubber snap ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
As shown in fig. 1 to 11, in the embodiment of the present invention, an urban environment air detection and automatic sampling device includes a device housing 1, an air detection device 2, and a display screen 3, a stepping motor 4, an air intake module 5, an air intake pipe 6, a driving gear 7, and a driven gear 8 are installed on an upper portion of an inner cavity of the device housing 1, an input port and an output port of the air intake pipe 6 are respectively communicated with a detection air cavity of the air detection device 2 and an inner cavity of the air intake module 5, the air intake module 5 is provided with two parts and respectively fixedly connected with the driving gear 7 and the driven gear 8, an output shaft of the stepping motor 4 is fixedly connected with the driving gear 7, and the driving gear 7 and the.
The gas collecting device is characterized in that a drawing box 10 is arranged below the gas inlet module 5, a mounting plate 9 is fixedly mounted at the top of the drawing box 10, a gas collecting bottle 11 is mounted between the mounting plate 9 and the drawing box 10, a rubber snap ring 14 is mounted on the surface of the mounting plate 9, the top and the bottom of the rubber snap ring 14 are respectively in butt joint with the gas inlet module 5 and the gas collecting bottle 11, a first magnet 12 and a second magnet 13 are respectively fixedly mounted at the bottom of the device shell 1 and the drawing box 10, and the first magnet 12 and the second magnet 13 are attracted and attached.
Wherein, air intake module 5 includes outside sleeve 51, gas outlet 52, rubber tube 53 and blast pipe 54, gas outlet 52 sets up in outside sleeve 51's surface and its opening down, rubber tube 53 fixes the cover and connects in outside sleeve 51's inside, blast pipe 54 activity cup joints in the inside of rubber tube 53, outside sleeve 51, rubber tube 53 and blast pipe 54 are provided with two sets ofly altogether, two blast pipe 54's outer end respectively with driving gear 7 and driven gear 8 fixed connection, the inner chamber of blast pipe 54 communicates with the output of intake pipe 6, intake pipe 6 communicates with the detection chamber of empty gas detection survey device 2, enter into in blast pipe 54 through intake pipe 6 when detecting the gaseous discharge in the chamber.
The exhaust pipe 54 includes a pipe body 541 and exhaust ports 542, five exhaust ports 542 are formed in the surface of the single pipe body 541, an axial included angle between two adjacent exhaust ports 542 along the pipe body 541 is thirty-six degrees, and the distance between each exhaust port 542 along the horizontal direction is equal, and the stepping motor 4 drives the exhaust pipe 54 to rotate by thirty-six degrees, so that one exhaust port 542 faces the right below and is communicated with the air outlet 52 in an aligned manner.
Wherein, gas collecting bottle 11 includes bottle body 111 and top admission valve 112 and bottom air outlet valve 113, top admission valve 112 and bottom air outlet valve 113 are fixed mounting respectively in the top and the bottom of bottle body 111, top admission valve 112 and bottom air outlet valve 113's specification and effect are the same, bottle body 111 movable mounting is on pull box 10, bottom air outlet valve 113 and top admission valve 112 cooperation constitute a confined space with bottle body 111, the air current can get into from top admission valve 112, bottom air outlet valve 113 department discharges, when collecting gas, top admission valve 112 department admits air, cause the inside atmospheric pressure of bottle body 111 to increase, so bottom air outlet valve 113 department begins to exhaust, this process is the taking a breath at the beginning, with the gaseous exhaust originally in the bottle body 111 inner chamber, it can about a minute to ventilate.
The top intake valve 112 is formed by combining a valve housing 1121, a spring 1123 and a valve head 1124, a spacer 1122 is arranged on the upper portion of the inner side of the valve housing 1121, the spacer 1122 is defined to divide the inner side of the valve housing 1121 into an upper portion and a lower portion, the spring 1123 is arranged on the lower portion of the inner side of the valve housing 1121, the bottom of the valve head 1124 is arranged on the lower portion of the inner side of the valve housing 1121, the top of the valve head 1124 is arranged on the upper portion of the inner side of the spacer 1122, the bottom of the valve head 1124 is in contact with the top end of the spring 1123, the valve housing 1121 is fixedly arranged on the top of the bottle body 111, and in an initial state, due to the elastic force of the spring 1123, the bottom of the valve head 1124.
Wherein, the top of valve head 1124 is for seting up the cylindric of five vertical slots, the bottom of valve head 1124 is a discoid of seting up four logical grooves, the bottom of valve head 1124 is blocked in the centre by spring 1123 and spacer 1122, under the initial condition, the chassis of valve head 1124 is laminated with the bottom surface of spacer 1122, when admitting air, gas can promote valve head 1124 and descend, spring 1123 atress compression, the chassis of valve head 1124 breaks away from the laminating state with spacer 1122, when the top vertical slot of valve head 1124 extends to the inboard time sharing of lower part of valve housing 1121 through spacer 1122, then the air current enters into valve housing 1121 along the logical groove of vertical slot and valve head 1124 bottom, the through-hole of rethread valve housing 1121 bottom enters into bottle body 111 inner chamber, the exhaust principle of bottom air outlet valve 113 is the same.
Wherein, a circular through hole is opened on the bottom surface of the spring 1123, and the inner cavity of the valve housing 1121 is communicated with the inner cavity of the bottle body 111 through the circular through hole at the bottom thereof.
Wherein, gas outlet 52 is provided with five and be equidistance inline on the surface of outside sleeve pipe 51, five equidistance inline's through-hole have been seted up on the surface of rubber tube 53, every through-hole on rubber tube 53 surface communicates with the gas outlet 52 on outside sleeve pipe 51 surface one-to-one, rubber tube 53 plays the effect here and will be deflated with inclosed effect, the outer wall of blast pipe 54 and the inner wall of rubber tube 53 laminate mutually, so only when gas vent 542 aligns with the through-hole on rubber tube 53 surface, the blast pipe 54 inner chamber can be given vent to the anger along gas outlet 52.
Wherein, the horizontal distance between each exhaust port 542 is equal to the distance between two adjacent air outlets 52, the exhaust ports 542 can be rotated to make the exhaust ports 542 aligned with the air outlets 52 and the through holes on the surface of the rubber tube 53 one by one, in an initial state, only one exhaust port 542 of the total ten exhaust ports 542 distributed on the two exhaust tubes 54 is aligned with the air outlet 52 one by one, then, when the stepping motor 4 rotates three sixteen degrees each time, the next exhaust port 542 is aligned with the air outlet 52, and so on, after the five exhaust ports 542 on one exhaust tube 54 are respectively aligned one by one, the exhaust port 542 faces the inner wall of the rubber tube 53, and ventilation can not be performed, the other exhaust tube 54 can further rotate to make the exhaust ports 542 distributed on the surface correspond to the air outlets 52 one by one, when the output shaft of the stepping motor 4 rotates one circle, the exhaust ports 542 on the two exhaust tubes 54 are both aligned with the air outlets 52 once, and respectively correspond to the air outlets 52 at different positions.
Wherein, the distribution form of the exhaust port 542 on two exhaust pipes 54 is different, the exhaust port 542 on the surface of two exhaust pipes 54 is distributed on two symmetrical half surfaces of the exhaust pipe 54 respectively, because the axial included angle between two adjacent exhaust ports 542 of the same exhaust pipe 54 is thirty-six degrees, then the axial included angle occupied by five exhaust ports 542 is one hundred forty-four degrees, so five exhaust ports 542 are distributed on one half surface of the exhaust pipe 54, no exhaust port 542 is arranged on the other half surface, another exhaust pipe 54 also has the exhaust port 542 distributed with the same angle, as in fig. 3, the exhaust port 542 located at the right end of the exhaust pipe 54 is set as the initial hole, then the included angle between the initial holes on two exhaust pipes 54 is two hundred sixteen degrees, and the direction of the included angle is the same as the rotation direction of the.
The working principle and the using process are as follows:
installing the gas collecting bottle 11 into the pull-out box 10, then fixedly installing the installation plate 9 on the pull-out box 10, wherein the installation plate 9 needs to press the top end of the gas collecting bottle 11, integrally pushing the gas collecting bottle 11 into the inner cavity at the bottom of the device shell 1 after the installation is finished, pushing the gas collecting bottle to the bottom, and enabling the first magnet 12 and the second magnet 13 to be attracted until the gas collecting bottle 11 and the second magnet are attracted, and at the moment, the top of the rubber snap ring 14 respectively corresponds to one gas outlet 52 and is in butt joint with the;
when gas needs to be collected, the air detection device 2 extracts air outwards, the gas in the detection cavity is discharged into the air inlet module 5 through the air inlet pipe 6, because the axial included angle between two adjacent exhaust ports 542 of the same exhaust pipe 54 is thirty-six degrees, the axial included angle occupied by the five exhaust ports 542 is one hundred forty-four degrees, so that five exhaust ports 542 are distributed on one half surface of the exhaust pipe 54, the exhaust ports 542 are not arranged on the other half surface of the exhaust pipe 54, the exhaust ports 542 are distributed on the other exhaust pipe 54 at the same angle, and the included angle between the initial holes on the two exhaust pipes 54 is two hundred sixteen degrees, so that when the stepping motor 4 rotates three sixteen degrees each time, the next exhaust port 542 is aligned with the air outlet 52, and so on, when the five exhaust ports 542 on one exhaust pipe 54 are respectively and one by one, the exhaust ports 542 face the inner wall of the rubber pipe, the other exhaust pipe 54 is configured to have the exhaust ports 542 distributed on the surface thereof corresponding to the air outlets 52 one by one during the further rotation, and after the output shaft of the stepping motor 4 rotates for one circle, the exhaust ports 542 of the two exhaust pipes 54 correspond to the air outlets 52 once and respectively correspond to the air outlets 52 at different positions.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an urban environment empty gas detection surveys and automatic sampling device, includes device shell, empty gas detection surveys device and display screen, its characterized in that: the device comprises an air detection device and is characterized in that a stepping motor, an air inlet module, an air inlet pipe, a driving gear and a driven gear are mounted on the upper portion of an inner cavity of a shell of the device, an input port and an output port of the air inlet pipe are respectively communicated with a detection air cavity of the air detection device and the inner cavity of the air inlet module, the two air inlet modules are respectively fixedly connected with the driving gear and the driven gear, an output shaft of the stepping motor is fixedly connected with the driving gear, and the driving gear and the driven gear are.
2. The device for detecting and automatically sampling urban environmental air according to claim 1, wherein: the gas collection device is characterized in that a drawing box is arranged below the gas inlet module, a mounting plate is fixedly mounted at the top of the drawing box, a gas collection bottle is mounted between the mounting plate and the drawing box, a rubber snap ring is mounted on the surface of the mounting plate, the top and the bottom of the rubber snap ring are respectively in butt joint with the gas inlet module and the gas collection bottle, a first magnet and a second magnet are respectively fixedly mounted at the bottom of the device shell and the bottom of the drawing box, and the first magnet and the second magnet are attracted and attached.
3. The device for detecting and automatically sampling urban environmental air according to claim 1, wherein: the air inlet module comprises an external sleeve, an air outlet, a rubber pipe and an exhaust pipe, wherein the air outlet is formed in the surface of the external sleeve and faces downwards, the rubber pipe is fixedly sleeved inside the external sleeve, the exhaust pipe is movably sleeved inside the rubber pipe, the external sleeve, the rubber pipe and the exhaust pipe are provided with two sets of exhaust pipes, the two sets of exhaust pipes are fixedly connected with a driving gear and a driven gear respectively, and the inner cavity of the exhaust pipe is communicated with the output end of an air inlet pipe.
4. The device according to claim 3, wherein: the blast pipe includes pipe body and gas vent, five have been seted up on single pipe body's surface to the gas vent, adjacent two be thirty six degrees and equal along the distance between every gas vent of horizontal direction along pipe body axial contained angle between the gas vent.
5. The device for detecting and automatically sampling urban environmental air according to claim 2, wherein: the gas collecting bottle comprises a bottle body, a top gas inlet valve and a bottom gas outlet valve, wherein the top gas inlet valve and the bottom gas outlet valve are fixedly installed at the top and the bottom of the bottle body respectively, the specifications and effects of the top gas inlet valve and the bottom gas outlet valve are the same, and the bottle body is movably installed on the drawing box.
6. The device for detecting and automatically sampling urban environmental air according to claim 5, wherein: the top admission valve is formed by valve housing, spring and valve head combination, valve housing's inboard upper portion is provided with the spacer, and the spacer divide into two parts about valve housing's inboard, the spring sets up in the inboard lower part of valve housing, the bottom of valve head sets up in the inboard lower part of valve housing, and the top of valve head sets up in the inboard upper portion of spacer, the bottom of valve head and the top contact of spring, valve housing fixed mounting is in the top of bottle body.
7. The device for detecting and automatically sampling urban environmental air according to claim 6, wherein: the top of the valve head is cylindrical and provided with five vertical grooves, the bottom of the valve head is disc-shaped and provided with four through grooves, and the bottom of the valve head is clamped in the middle by a spring and a spacer.
8. The device for detecting and automatically sampling urban environmental air according to claim 6, wherein: a round through hole is formed in the bottom surface of the spring, and the inner cavity of the valve shell is communicated with the inner cavity of the bottle body through the round through hole in the bottom of the valve shell.
9. The device according to claim 3, wherein: the gas outlet is provided with five and be equidistance inline on outside sheathed tube surface, five equidistance inline's through-hole are seted up on the surface of rubber tube, every through-hole on rubber tube surface and the gas outlet one-to-one on outside sheathed tube surface communicate.
10. The device according to claim 4, wherein: every horizontal distance between the gas vent equals with the distance between two adjacent gas outlets, the gas vent accessible rotates and makes gas vent and gas outlet and the through-hole on rubber tube surface align from top to bottom gradually one by one.
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| CN202110385815.6A CN113092687A (en) | 2021-04-11 | 2021-04-11 | Urban environment air detection and automatic sampling device |
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| CN202110385815.6A CN113092687A (en) | 2021-04-11 | 2021-04-11 | Urban environment air detection and automatic sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414445A (en) * | 2021-12-30 | 2022-04-29 | 浙江意诚检测有限公司 | Air detection device for indoor building materials |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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