Ambient air detection device

Abstract

The utility model relates to the technical field of environment detection equipment, in particular to an environment air detection device which comprises a detection box and a spectrum analyzer embedded in the top of the detection box, an exhaust hood is arranged on the left side of the detection box, rotating shafts are arranged in the exhaust hood respectively, sealing blades are arranged on the outer sides of the rotating shafts, and the sealing blades are arranged on the outer sides of the rotating shafts respectively. A guide motor and a pasting rubber plate are arranged on the rear side of the detection box, a convenient dismounting mechanism is arranged between the pasting rubber plate and the detection box, a flow guide bin and an air bin are formed in the detection box, a guide shaft is rotationally arranged in the flow guide bin, and flow deflectors are arranged on the outer side of the guide shaft; according to the environment air detection device, by means of the structural design in the convenient disassembly and assembly mechanism, the filtering effect of the device is ensured, small particles are prevented from being attached to the sensing end of a spectrum analyzer, and the detection precision of the device is ensured.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring equipment technology, specifically to an ambient air monitoring device. Background Technology

[0002] With the increasing prominence of environmental issues, air quality monitoring has become increasingly important. In the process of ambient air monitoring, spectrometers are needed to detect ambient gases. Through environmental monitoring, we can understand the utilization status of various resources in the environment and the changing trends of environmental quality.

[0003] A current ambient air detection device, as disclosed in Chinese patent document CN221056429U, includes: an air inlet hood fixedly connected to both ends of a tube body, with a rotating material-dispensing roller inside the air inlet hood; a partition plate installed inside the air inlet hood, with vents on its surface; and a dust-dispensing base installed inside the air inlet hood, with a dust-dispensing strip on its surface. By installing the partition plate inside the air inlet hood and setting the diameter of the vents to be larger than the diameter of the components to be detected in the air, the composition of the air entering the tube body through the vents is not reduced, thus avoiding the impact on the detection results. Furthermore, the partition plate blocks large impurities in the air that do not need to be detected, such as paper scraps, hair, and leaves, preventing large impurities from entering the detection device and causing blockages.

[0004] While the above patents have solved the problems mentioned in the background technology, they still have the following shortcomings: 1. The device relies on a partition plate to block impurities in the gas. This method can only filter large particulate impurities and is not easy to disassemble, which leads to small particles adhering to the sensing end of the spectrometer, reducing the detection accuracy of the spectrometer; 2. The exhaust port in the device is normally open, which makes the contact time between the gas and the sensing end of the spectrometer too short, affecting the detection accuracy of the device and making it unsuitable for subsequent use.

[0005] In summary, this utility model solves the problems in the background art by designing an ambient air detection device. Utility Model Content

[0006] The purpose of this invention is to provide an ambient air detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An ambient air detection device includes a detection chamber and a spectrometer embedded in the top of the detection chamber. A flow guide hood is located on the right side of the detection chamber, and a dustproof net is located on the right side of the flow guide hood. An intake fan is located inside the flow guide hood. An exhaust hood is located on the left side of the detection chamber. A rotating shaft is located inside the exhaust hood, and sealing blades are located on the outer sides of each rotating shaft. The rear end of each rotating shaft passes through the inner surface of the exhaust hood and is fixedly mounted with a rack wheel. An electric actuator is fixedly mounted on the rear side of the exhaust hood, and a rack plate is fixedly mounted on the telescopic end of the electric actuator. A guide motor and an adhesive plate are located on the rear side of the detection chamber. A convenient disassembly and assembly mechanism is provided between the adhesive plate and the detection chamber. The detection chamber contains a flow guide chamber and an air chamber. A guide shaft is rotatably mounted inside the flow guide chamber, and flow guide plates are located on the outer sides of the guide shaft. Multiple air holes are located on the right inner wall of the air chamber.

[0009] The convenient assembly and disassembly mechanism includes a plate groove, a positioning post, and a fastening block. The plate groove is opened on the rear surface of the test box. The positioning post is fixedly installed on the rear surface of the test box. A limit block is provided at the rear end of the positioning post. The fastening block is fixedly installed on the rear surface of the adhesive plate. A positioning hole is opened on the front surface of the fastening block.

[0010] As a preferred embodiment of this utility model, the sensing end of the spectrometer extends to the top inner wall of the gas chamber.

[0011] As a preferred embodiment of this utility model, the left inner wall of the flow guide extends into the interior of the flow guide chamber, and the right inner wall of the air hole is flush with the left inner wall of the flow guide chamber.

[0012] As a preferred embodiment of this utility model, the output end of the guide motor passes through the rear surface of the detection box and is fixed to the rear end of the guide shaft, and the guide vanes are equidistantly distributed about the outer surface of the guide shaft.

[0013] As a preferred embodiment of this utility model, the right inner wall of the exhaust hood extends to the left side of the air chamber, and the sealing blades are symmetrically distributed on the outer surface of the rotating shaft.

[0014] In a preferred embodiment of this utility model, the electric actuator is arranged parallel to the rack plate, and the tooth surface of the rack plate meshes with the rack wheel.

[0015] As a preferred embodiment of this utility model, the plate groove is inclined and extends to the inner wall of the front side of the flow guide chamber, and the inner wall of the plate groove slides against the outer surface of the adhesive plate.

[0016] As a preferred embodiment of this utility model, the outer surface of the positioning post matches and fits the inner wall of the positioning hole, the limiting block rotates eccentrically with the rear end of the positioning post through an eccentric component, and the front surface of the limiting block rubs against the rear surface of the fastening block.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, an ambient air detection device is designed with a convenient disassembly mechanism. The inclined arrangement of the plate groove and the action of the suction fan cause the gas to come into contact with the adhesive plate, enabling the adhesive plate to adsorb small particles in the gas. Simultaneously, the combination of the positioning column, positioning hole, and limiting block allows for quick installation and disassembly of the adhesive plate from the plate groove, facilitating subsequent replacement of the adhesive plate. This ensures the filtration effect of the device, prevents small particles from adhering to the sensing end of the spectrometer, and guarantees the detection accuracy of the device.

[0019] 2. In this utility model, an ambient air detection device is designed with an electric actuator, a rack plate, a rack wheel, a rotating shaft, and sealing blades. Under the drive of the electric actuator, the rack plate meshes with the rack wheel, causing the rotating shaft to open and close the sealing blades. This ensures the contact time between the gas and the spectrometer, thus guaranteeing the detection accuracy of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the testing box of this utility model;

[0022] Figure 3 For the present utility model Figure 2 Enlarged structural diagram of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the adhesive sheet of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the testing box of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the exhaust hood of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the air guide cover of this utility model.

[0027] In the diagram: 1. Detection box; 2. Spectrometer; 3. Flow guide; 301. Dustproof net; 302. Intake fan; 4. Exhaust hood; 401. Rotating shaft; 402. Sealing blade; 403. Rack wheel; 404. Electric actuator; 405. Rack plate; 5. Guide motor; 6. Adhesive plate; 7. Easy disassembly and assembly mechanism; 701. Plate groove; 702. Positioning post; 703. Fastening block; 704. Limiting block; 705. Positioning hole; 8. Flow guide chamber; 801. Guide shaft; 802. Flow guide plate; 9. Air chamber; 901. Air hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] For examples, please refer to Figure 1-7 This utility model provides a technical solution:

[0033] An ambient air detection device includes a detection chamber 1 and a spectrometer 2 embedded in the top of the detection chamber 1. A flow guide 3 is located on the right side of the detection chamber 1, and a dustproof net 301 is located on the right side of the flow guide 3. An intake fan 302 is located inside the flow guide 3. An exhaust hood 4 is located on the left side of the detection chamber 1. A rotating shaft 401 is located inside the exhaust hood 4, and sealing blades 402 are located on the outer side of each rotating shaft 401. The rear end of each rotating shaft 401 extends through the inner surface of the exhaust hood 4 and is fixedly mounted with a rack and pinion wheel 4. 03. An electric push rod 404 is fixedly installed on the rear side of the exhaust hood 4. A rack plate 405 is fixedly installed on the telescopic end of the electric push rod 404. A guide motor 5 and an adhesive plate 6 are respectively installed on the rear side of the test box 1. A convenient disassembly and assembly mechanism 7 is provided between the adhesive plate 6 and the test box 1. A flow guide chamber 8 and an air chamber 9 are respectively opened inside the test box 1. A guide shaft 801 is rotatably installed inside the flow guide chamber 8. A flow guide plate 802 is respectively installed on the outer side of the guide shaft 801. Multiple air holes 901 are opened on the right inner wall of the air chamber 9.

[0034] It should be noted that a controller is installed on the top of the testing box 1. The controller is electrically connected to the suction fan 302, the electric push rod 404, and the guide motor 5 via wires.

[0035] Specifically, the left inner wall of the flow guide shroud 3 extends into the interior of the flow guide chamber 8, the right inner wall of the air hole 901 is flush with the left inner wall of the flow guide chamber 8, the output end of the guide motor 5 passes through the rear surface of the detection box 1 and is fixed to the rear end of the guide shaft 801, and the flow guide plate 802 is equidistantly distributed about the outer surface of the guide shaft 801.

[0036] In this embodiment, the intake fan 302 is mainly used to guide the external air, so that it enters the air chamber 8 through the air guide shroud 3. At the same time, the guide motor 5 is mainly used to rotate the guide shaft 801, thereby achieving the function of rotating and controlling the air guide plate 802, so that the gas can enter the air chamber 9 through multiple air holes 901, which facilitates subsequent testing operations.

[0037] Specifically, the sensing end of the spectrometer 2 extends to the top inner wall of the gas chamber 9, the right inner wall of the exhaust hood 4 extends to the inner left side of the gas chamber 9, the sealing blades 402 are symmetrically distributed about the outer surface of the rotating shaft 401, the electric push rod 404 and the rack plate 405 are arranged in parallel, and the tooth surface of the rack plate 405 is matched and meshed with the rack wheel 403.

[0038] In this embodiment, the electric actuator 404 is mainly used to drive the rack plate 405 and the rack wheel 403 to mesh and transmit power, causing the rotating shaft 401 to drive the sealing blade 402 to adjust its displacement, precisely controlling the opening and closing of the sealing blade 402, realizing the control of the exhaust process, facilitating the full contact between the gas in the gas chamber 9 and the sensing end of the spectrometer 2, and meeting the detection requirements of the device.

[0039] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The convenient disassembly and assembly mechanism 7 includes a plate groove 701, a positioning post 702, and a fastening block 703. The plate groove 701 is opened on the rear surface of the test box 1. The positioning post 702 is fixedly installed on the rear surface of the test box 1. A limit block 704 is provided at the rear end of the positioning post 702. The fastening block 703 is fixedly installed on the rear surface of the adhesive plate 6. A positioning hole 705 is opened on the front surface of the fastening block 703.

[0040] Specifically, the plate groove 701 is inclined and extends to the front inner wall of the flow guide chamber 8. The inner wall of the plate groove 701 slides against the outer surface of the adhesive plate 6. The outer surface of the positioning post 702 matches and fits against the inner wall of the positioning hole 705. The limiting block 704 rotates eccentrically with the rear end of the positioning post 702 through the eccentric part. The front surface of the limiting block 704 rubs against the rear surface of the fastening block 703.

[0041] In this embodiment, the groove 701 allows the adhesive plate 6 to slide quickly in or out along its inclined direction. The positioning post 702 is mainly used to make positioning contact with the positioning hole 705, ensuring the precise alignment of the adhesive plate 6 during installation. At the same time, the eccentric rotation of the limiting block 704 and the positioning post 702 enables the fastening and release of the adhesive plate 6, allowing the adhesive plate 6 to adsorb small particulate matter in the gas, thus meeting the filtration requirements of the device.

[0042] The working process of this utility model is as follows: In an ambient air detection device, the device is first moved to the desired position. Driven by the intake fan 302, external air passes through the dustproof net 301 and the air guide shroud 3 and enters the air guide chamber 8. The air then comes into contact with the inclined adhesive plate 6, which adsorbs small particles in the air. Subsequently, the guide motor 5 is driven, and its output drives the guide shaft 801 to rotate. The guide shaft 801 then drives the air guide plate 802 to rotate, causing the air at the bottom of the air guide chamber 8 to accelerate through the air hole 901 and reach the air chamber 9. The air in the air chamber 9 then comes into contact with the sensing end of the spectrometer 2. When it is necessary to analyze the air in the air chamber 9... When the gas is discharged, the electric actuator 404 is activated. The telescopic end of the electric actuator 404 drives the rack plate 405 to move and mesh with the rack wheel 403. The rack wheel 403 drives the rotating shaft 401 to rotate, so that the sealing blades 402 are in an unfolded state, allowing the gas in the gas chamber 9 to be discharged, thus meeting the detection requirements of the device. Furthermore, by eccentrically rotating the limiting block 704, the limiting block 704 is made to coincide with the positioning post 702. At this time, a backward force can be applied to the adhesive plate 6. As the positioning hole 705 disengages from the positioning post 702, the adhesive plate 6 moves backward along the plate groove 701, thereby realizing the disassembly and replacement of the adhesive plate 6, which meets the filtration requirements of the device.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ambient air detection device, comprising a detection chamber (1) and a spectrometer (2) embedded in the top of the detection chamber (1), characterized in that: A flow guide shroud (3) is provided on the right side of the test box (1), and a dustproof net (301) is provided on the right side of the flow guide shroud (3). An air intake fan (302) is provided inside the flow guide shroud (3). An exhaust shroud (4) is provided on the left side of the test box (1). A rotating shaft (401) is provided inside the exhaust shroud (4). Sealing blades (402) are provided on the outer side of each rotating shaft (401). The rear end of the rotating shaft (401) passes through the inner surface of the exhaust shroud (4) and a rack wheel (403) is fixedly installed thereon. An electric push rod (403) is fixedly installed on the rear side of the exhaust shroud (4). 04), the telescopic end of the electric push rod (404) is fixedly installed with a rack plate (405), the rear side of the test box (1) is respectively provided with a guide motor (5) and an adhesive plate (6), the adhesive plate (6) and the test box (1) are provided with a convenient disassembly and assembly mechanism (7), the test box (1) is respectively provided with a flow guide chamber (8) and an air chamber (9), the flow guide chamber (8) is rotatably provided with a guide shaft (801), the outer side of the guide shaft (801) is respectively provided with a flow guide plate (802), and the right inner wall of the air chamber (9) is provided with multiple air holes (901); The convenient disassembly and assembly mechanism (7) includes a plate groove (701), a positioning post (702), and a fastening block (703). The plate groove (701) is opened on the rear surface of the test box (1). The positioning post (702) is fixedly installed on the rear surface of the test box (1). A limit block (704) is provided at the rear end of the positioning post (702). The fastening block (703) is fixedly installed on the rear surface of the adhesive plate (6). A positioning hole (705) is opened on the front surface of the fastening block (703).

2. The ambient air detection device according to claim 1, characterized in that: The sensing end of the spectrometer (2) extends to the top inner wall of the gas chamber (9).

3. The ambient air detection device according to claim 1, characterized in that: The left inner wall of the flow guide (3) extends into the interior of the flow guide chamber (8), and the right inner wall of the air hole (901) is flush with the left inner wall of the flow guide chamber (8).

4. An ambient air detection device according to claim 1, characterized in that: The output end of the guide motor (5) passes through the rear surface of the detection box (1) and is fixed to the rear end of the guide shaft (801). The guide vanes (802) are equidistantly distributed about the outer surface of the guide shaft (801).

5. An ambient air detection device according to claim 1, characterized in that: The right inner wall of the exhaust hood (4) extends to the inside left side of the air chamber (9), and the sealing blades (402) are symmetrically distributed about the outer surface of the rotating shaft (401).

6. An ambient air detection device according to claim 1, characterized in that: The electric actuator (404) is arranged parallel to the rack plate (405), and the tooth surface of the rack plate (405) meshes with the rack wheel (403).

7. An ambient air detection device according to claim 1, characterized in that: The plate groove (701) is inclined and extends to the front inner wall of the flow guide chamber (8). The inner wall of the plate groove (701) is in contact with and slides against the outer surface of the adhesive plate (6).

8. An ambient air detection device according to claim 1, characterized in that: The outer surface of the positioning post (702) matches and fits the inner wall of the positioning hole (705). The limiting block (704) rotates eccentrically with the rear end of the positioning post (702) through an eccentric component. The front surface of the limiting block (704) rubs against the rear surface of the fastening block (703).

Images