CN213456317U - Air filtration membrane sample introduction unit and air sampling equipment - Google Patents
Air filtration membrane sample introduction unit and air sampling equipment Download PDFInfo
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- CN213456317U CN213456317U CN202022524073.4U CN202022524073U CN213456317U CN 213456317 U CN213456317 U CN 213456317U CN 202022524073 U CN202022524073 U CN 202022524073U CN 213456317 U CN213456317 U CN 213456317U
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Abstract
The utility model discloses an air filtering membrane sample introduction unit and air sampling equipment, belonging to the technical field of air sampling equipment, comprising a frame, wherein a wide-width conveying belt and an extrusion conveying belt are arranged on the frame; a baffle is arranged above the rear end of the wide-breadth conveying belt; the quantity of extrusion conveyer belt is two sets of, and two sets of extrusion conveyer belt symmetries set up the left and right sides in the frame, and every group extrusion conveyer belt includes two bar conveyer belts that relative up-down set up. The utility model discloses an air filtering membrane sample introduction unit and an air sampling device, which can smoothly and stably send out a filtering membrane stored at the lowest layer of the top of a wide-breadth conveying belt to an extrusion conveying belt through the matching of the wide-breadth conveying belt, a baffle and a height adjusting structure; the filtration membrane is restricted on the extrusion conveyer belt after fan work begin to sample, avoids filtering membrane displacement at the sampling in-process, the change and the air sampling operation of carrying out filtration membrane that can be convenient.
Description
Technical Field
The utility model relates to an air filtration membrane advances appearance unit and air sampling equipment belongs to air sampling equipment technical field.
Background
The air sampling equipment is installed in the appointed place, and the device for sampling the air in the area is internally provided with a filtering membrane, the fan drives the air flow to pass through the filtering membrane during the work, and the air flow carries dust particles and other pollutants to be intercepted by the filtering membrane in the process of passing through the filtering membrane. The staff regularly takes out the filter membrane and analyzes and detects the composition and the content of the substance intercepted inside the filter membrane, thereby achieving the purpose of monitoring the air quality. Therefore, after a certain period of time for sampling, the filtering membrane needs to be replaced, and a new filtering membrane is put in for continuous sampling. The existing air sampling equipment is not reasonable enough in design, and is complex to operate and poor in convenience when the filtering membrane is replaced every time.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that prior art exists, provide an air filtration membrane and advance appearance unit and air sampling equipment, change and the air sampling operation of filtration membrane that can be convenient.
The utility model discloses an adopt following technical scheme to realize above-mentioned purpose:
on one hand, the utility model provides an air filtering membrane sample introduction unit, which comprises a frame, wherein a wide-width conveyer belt and an extrusion conveyer belt are arranged on the frame in a front-back connection manner along the sample introduction direction;
a baffle is arranged above the rear end of the wide-breadth conveying belt, and the bottom of the baffle and the wide-breadth conveying belt are arranged at intervals to form a film outlet;
the quantity of extrusion conveyer belt is two sets of, and two sets of extrusion conveyer belt symmetries set up the left and right sides in the frame, and every group extrusion conveyer belt is formed into the membrane mouth including two bar conveyer belts that relative set up from top to bottom between two bar conveyer belts, advance the membrane mouth with it sets up relatively to go out the membrane mouth.
Further, the air filtration membrane sample introduction unit further comprises a height adjusting structure arranged at the position of the membrane inlet, wherein the height adjusting structure comprises:
the fixing piece is arranged above the film outlet;
and one end of the movable piece is movably connected with the fixed piece, and the movable piece changes the spacing distance between the movable piece and the conveying surface of the wide-width conveyer belt through position change.
Further, the air filtering membrane sample feeding unit further comprises a bolt, and the bolt is used for fixing the relative position between the movable part and the fixed part.
Furthermore, the moving part is of a U-shaped structure, two ends of the U-shaped structure are respectively provided with a circular ring, and the bolt penetrates through the circular rings and then is in threaded connection with the fixing part.
Furthermore, the number of the height adjusting structures is multiple, and the height adjusting structures are arranged at intervals in the width direction of the wide-width conveyer belt.
Furthermore, a storage chamber is arranged on the periphery above the wide-width conveyer belt, the storage chamber is formed by a plurality of side plates in a surrounding mode, and the baffle plate forms one side plate of the storage chamber.
On the other hand, the utility model also provides an air sampling equipment, include filtration membrane advances kind unit, still includes the air current control unit, the air current control unit is used for controlling the air current to pass through between two sets of extrusion conveyer belts, and the air current passes through the direction perpendicular with direction of delivery.
Furthermore, the air flow control unit comprises an air inlet chamber and an air extraction chamber which are oppositely arranged above and below the extrusion conveying belt, an air inlet is arranged on the air inlet chamber, the air extraction chamber is also connected with an inlet of a fan, and a channel for air flow to pass through is enclosed by the air inlet chamber and the air extraction chamber.
Furthermore, a rain shield is arranged outside the airflow inlet.
The utility model has the advantages of but not limited to:
the utility model provides an air filtering membrane sample introduction unit and an air sampling device, which can smoothly and stably send out a filtering membrane stored at the lowest layer of the top of a wide-breadth conveying belt to an extrusion conveying belt through the matching of the wide-breadth conveying belt, a baffle and a height adjusting structure; the filtration membrane is restricted on the extrusion conveyer belt after fan work begin to sample, avoids filtering membrane displacement at the sampling in-process, the change and the air sampling operation of carrying out filtration membrane that can be convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural diagram of an air filtration membrane sample introduction unit provided by the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is a schematic structural view of a height adjusting structure in the air filtering membrane sample feeding unit provided by the present invention;
fig. 5 is a schematic structural diagram of an air sampling device provided by the present invention;
fig. 6 is a schematic perspective view of the air sampling device provided by the present invention after removing a portion of the air inlet chamber;
in the figure, 100, a rack; 200. a wide-width conveyer belt; 210. a baffle plate; 220. a film outlet; 230. a storage chamber; 300. extruding the conveying belt; 310. a film inlet; 400. a height adjustment structure; 410. a fixing member; 420. a movable member; 430. a bolt; 440. a circular ring; 510. an air intake chamber; 511. an airflow inlet; 512. a rain shield; 520. an air extraction chamber; 530. a fan.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein. Accordingly, the scope of the present invention is not limited by the specific embodiments disclosed below.
As shown in fig. 1 and fig. 2, on the one hand, the utility model provides an air filtration membrane advances appearance unit, including frame 100, be provided with wide breadth conveyer belt 200 and extrusion conveyer belt 300 along advancing kind direction front-back connection on the frame 100, wide breadth conveyer belt 200 and extrusion conveyer belt 300 carry filtration membrane along the horizontal direction.
A baffle 210 is arranged above the rear end of the wide-width conveyer belt 200, the baffle 210 is arranged along the vertical direction and is perpendicular to the conveying surface of the wide-width conveyer belt 200, and the bottom of the baffle 210 and the wide-width conveyer belt 200 are arranged at intervals to form a film outlet 220.
The quantity of extrusion conveyer belt 300 is two sets of, and two sets of extrusion conveyer belt 300 symmetries set up the left and right sides in frame 100, and every extrusion conveyer belt 300 of group includes two bar conveyer belts that relative up-down set up, forms into membrane mouth 310 between two bar conveyer belts, and it sets up with going out membrane mouth 220 relatively to advance membrane mouth 310.
When the filter membrane replacing device works, filter membranes are stacked up and down on the top of the wide-width-face conveyor belt 200, and when a new filter membrane needs to be replaced, the lowest filter membrane is controlled to be sent out from the membrane outlet 220, enter between the two strip-shaped conveyor belts from the membrane inlet 310, and is continuously conveyed under the driving of the two strip-shaped conveyor belts.
Specifically, in order to more precisely control that only one filter membrane is fed out at a time, the height adjusting structure 400 is further arranged at the membrane inlet 310. Specifically, the height adjustment structure 400 includes a fixed member 410 and a movable member 420, and the fixed member 410 is disposed on the baffle plate 210 above the film outlet 220, and may be disposed on a rear side surface of the baffle plate 210. One end of the movable member 420 is movably connected to the fixed member 410, and the movable member 420 changes a distance between the movable member 420 and the conveying surface of the wide-width conveyor belt 200 by changing a position thereof, so as to precisely control the distance between the movable member 420 and the wide-width conveyor belt 200 to be a thickness of the filter membrane.
In one embodiment, the movable member 420 is connected to the fixed member 410 by a bolt 430, so as to fix the relative position between the movable member 420 and the fixed member 410, specifically, when the distance between the movable member 420 and the wide-width conveyor belt 200 needs to be adjusted, the bolt 430 is loosened, and after the adjustment, the movable member 420 is fastened to the fixed member 410 again by the bolt 430.
Referring to fig. 3 and 4, in one embodiment, the upper end of the movable member 420 is rotatably connected to the fixed member 410, and the movable member 420 changes a distance between the lower portion thereof and the wide-width conveyor belt 200 by rotating about the connection point. Specifically, the movable member 420 has a U-shaped structure, two ends of the U-shaped structure are respectively provided with a circular ring 440, and the bolt 430 penetrates through the circular ring 440 and then is in threaded connection with the fixed member 410.
In addition, the distance between the movable member 420 and the wide-width conveyor belt 200 can also be controlled by moving up and down, specifically, an elongated hole can be formed in the fixed member 410, and the bolt 430 penetrates through the movable member 420 and extends into the elongated hole to press the movable member 420 against the fixed member 410. When the position of the movable member 420 needs to be adjusted, the bolt 430 is loosened to move up and down along the elongated hole, and the bolt 430 is locked again after the adjustment is completed.
Generally, the height adjusting mechanism 400 is plural in number, and plural height adjusting mechanisms are arranged at intervals in the width direction of the wide-width conveying belt 200.
Further, a storage chamber 230 is provided at the upper periphery of the wide-width conveyer belt 200 to protect the filter membrane stored at the top of the wide-width conveyer belt 200. The storage compartment 230 is defined by a plurality of side panels, and the barrier 210 forms one of the side panels of the storage compartment 230.
On the other hand, as shown in fig. 5 and fig. 6, the utility model also provides an air sampling device, including above-mentioned filtration membrane sample introduction unit, still include the air current control unit, the air current control unit control air current passes through between two sets of extrusion conveyer belts 300, and the air current passes through the direction perpendicular with direction of delivery. Specifically, the filtering membrane is conveyed from the wide-breadth conveyer belt 200 to the extrusion conveyer belt 300 and then just supported between the two extrusion conveyer belts 300, the airflow just passes through the filtering membrane when passing between the two extrusion conveyer belts 300, and the filtering membrane intercepts substances such as dust particles in the air, so that the sampling process is completed.
Further, in order to control the efficiency of the air flow passing through the filter membrane, the air flow control unit includes an air inlet chamber 510 and an air exhaust chamber 520, which are oppositely disposed above and below the extrusion conveyer 300, the air inlet chamber 510 is provided with an air inlet 511, the air exhaust chamber 520 is further connected to an inlet of a blower 530, and the air inlet chamber 510 and the air exhaust chamber 520 enclose a passage through which the air flow passes. When the fan 530 works, the pumped airflow passes through the air inlet chamber 510, the filter membrane and the air extraction chamber 520 in sequence, and is exhausted from the fan 530 after being filtered by the filter membrane.
Generally, the inlet chamber 510 has an open upper port and a lower port, the upper port forms the gas inlet 511, and the lower port faces the filter membrane. The upper port of the extraction chamber 520 is open and arranged opposite to the filter membrane.
Further, a rain shield 512 is arranged outside the airflow inlet 511 to prevent rainwater from wetting the filtering membrane.
It should be noted that, the utility model provides an among air filtration membrane sampling unit and the air sampling equipment, the form of frame 100 is not specifically injectd, can process according to actual conditions, the utility model discloses in adopt the aluminium alloy to make into frame construction, broad width face conveyer belt 200 and extrusion conveyer belt 300 support at frame construction's top.
The utility model discloses drive form to broad width face conveyer belt 200 and extrusion conveyer belt 300 does not do specifically and prescribe a limit to yet, the utility model discloses the form of listing in the accompanying drawing is:
the two ends of the wide-breadth conveyer belt 200 are respectively sleeved on the driving shaft and the driven shaft, the end part of the driving shaft is fixed with a driven synchronous belt wheel, the driven synchronous belt wheel is in driving connection with a driving synchronous belt wheel through a synchronous belt, the driving synchronous belt wheel is fixed on an output shaft of a servo motor, the driving synchronous belt wheel, the driven synchronous belt wheel and the driving shaft are sequentially driven by the servo motor to rotate, and therefore the wide-breadth conveyer belt 200 is driven to rotate to convey a filtering membrane.
In the two groups of extrusion conveyer belts 300, two strip conveyer belts above share one transmission shaft, two strip conveyer belts below share the other transmission shaft, gears are respectively fixed at the end parts of the two transmission shafts, the two gears are mutually meshed, the end part of one transmission shaft is in transmission connection with another servo motor, and the servo motor works to sequentially drive the two transmission shafts to rotate, so that the two groups of extrusion conveyer belts 300 are driven to synchronously rotate.
When the sampling device works, a filtering membrane (900 x 800 x 0.2mm) made of polypropylene material is prepared, the surface of the filtering membrane is provided with an electrostatic process, the weight of each filtering membrane is less than or equal to 100g, and the filtering membranes are stacked in the storage chamber 230. After the filtering membrane is conveyed from the wide-breadth conveying belt 200 to the position between the two groups of extrusion conveying belts 300, the fan 530 drives the airflow to pass through the filtering membrane, the filtering membrane intercepts substances such as dust particles in the air and samples the substances, and the filtering membrane is replaced every 24 hours.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above-mentioned specific embodiments can not be regarded as the restriction to the protection scope of the present invention, to the technical personnel in this technical field, it is right that any replacement improvement or transformation that the embodiment of the present invention made all fall within the protection scope of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (9)
1. An air filtering membrane sample introduction unit is characterized by comprising a rack, wherein a wide-width conveying belt and an extrusion conveying belt are arranged on the rack in a front-to-back connection mode along a sample introduction direction;
a baffle is arranged above the rear end of the wide-breadth conveying belt, and the bottom of the baffle and the wide-breadth conveying belt are arranged at intervals to form a film outlet;
the quantity of extrusion conveyer belt is two sets of, and two sets of extrusion conveyer belt symmetries set up the left and right sides in the frame, and every group extrusion conveyer belt is formed into the membrane mouth including two bar conveyer belts that relative set up from top to bottom between two bar conveyer belts, advance the membrane mouth with it sets up relatively to go out the membrane mouth.
2. The air filtration membrane sample introduction unit according to claim 1, further comprising a height adjustment structure provided at the membrane inlet, the height adjustment structure comprising:
the fixing piece is arranged above the film outlet;
and one end of the movable piece is movably connected with the fixed piece, and the movable piece changes the spacing distance between the movable piece and the conveying surface of the wide-width conveyer belt through position change.
3. The air filtration membrane sample introduction unit according to claim 2, further comprising a bolt for fixing a relative position between the movable member and the fixed member.
4. The air filtering membrane sample feeding unit according to claim 3, wherein the movable member is a U-shaped structure, two ends of the U-shaped structure are respectively provided with a circular ring, and the bolt penetrates through the circular rings and then is in threaded connection with the fixing member.
5. The air filtering membrane sample feeding unit according to claim 2, wherein the number of the height adjusting structures is multiple, and the multiple height adjusting structures are arranged at intervals along the width direction of the wide width conveying belt.
6. The air filtration membrane sample injection unit of claim 1, wherein a storage chamber is arranged at the upper periphery of the wide-format conveyer belt, the storage chamber is surrounded by a plurality of side plates, and the baffle plate forms one side plate of the storage chamber.
7. An air sampling device, characterized by comprising the air filtering membrane sample introduction unit as claimed in any one of claims 1 to 6, and further comprising an air flow control unit for controlling air flow to pass between the two sets of extrusion conveyor belts, wherein the air flow passing direction is perpendicular to the conveying direction.
8. The air sampling device according to claim 7, wherein the air flow control unit comprises an air inlet chamber and an air extraction chamber, the air inlet chamber and the air extraction chamber are oppositely arranged above and below the extrusion conveyer belt, an air flow inlet is arranged on the air inlet chamber, the air extraction chamber is further connected with an inlet of a fan, and the air inlet chamber and the air extraction chamber enclose a channel for air flow to pass through.
9. An air sampling device according to claim 8, wherein a rain shield is provided outside the airflow inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022524073.4U CN213456317U (en) | 2020-11-04 | 2020-11-04 | Air filtration membrane sample introduction unit and air sampling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022524073.4U CN213456317U (en) | 2020-11-04 | 2020-11-04 | Air filtration membrane sample introduction unit and air sampling equipment |
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| Publication Number | Publication Date |
|---|---|
| CN213456317U true CN213456317U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022524073.4U Active CN213456317U (en) | 2020-11-04 | 2020-11-04 | Air filtration membrane sample introduction unit and air sampling equipment |
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|---|---|
| CN (1) | CN213456317U (en) |
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- 2020-11-04 CN CN202022524073.4U patent/CN213456317U/en active Active
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