Atmospheric pollutant sampling and monitoring device

Abstract

The utility model relates to the technical field of sampling and detecting equipment, in particular to an atmospheric pollutant sampling and monitoring device. Comprising a sample detection tank, a sampling assembly is arranged at the upper end of the sample detection tank, and a gas component detection assembly is arranged in the sample detection tank; the sampling assembly comprises a spacer bush arranged at a tank opening of the sample measuring tank, a driving disc is rotatably mounted between the outer wall of the spacer bush and the inner wall of the sample measuring tank, a plurality of sliding blocks are slidably mounted on the upper end face of the spacer bush in the radial direction of the tank opening of the sample measuring tank, vortex teeth are arranged on the upper end face of the driving disc, and vortex grooves meshed with the vortex teeth are formed in the bottom ends of the sliding blocks; an arc-shaped sealing cover is fixed to the upper end of each sliding block. The driving disc is driven by the driving structure to rotate forwards, so that the sealing covers are gathered to form a tight hemispherical cover body. The air is sealed in the cover body to be isolated from the outside, so that the problem that the detection precision and result are influenced by gathering of particulate pollutants caused by air suction in an exposed environment is avoided, and the detection precision is improved.

Description

Technical Field

[0001] This application relates to the field of sampling and testing equipment technology, and in particular to an air pollutant sampling and monitoring device. Background Technology

[0002] In recent years, environmental protection has become a focus of attention for the whole society; more and more densely populated places, public places, green buildings, etc., are taking air quality issues into account to varying degrees when building smart and healthy places.

[0003] Therefore, a detection device for monitoring air composition has emerged. These devices generally use an air pump installed at the port to draw in outside air and then inject it into an internal chamber. Sensors are used to detect the gas composition in order to determine the degree of air pollution and the composition of pollutants.

[0004] However, this device has certain problems in use: fine particles such as dust floating in the air are particulate pollutants. When the air pump is started, nearby particulate matter rapidly gathers together, increasing the concentration of particulate matter relative to the air range originally intended for detection, thus affecting the accuracy of control and detection.

[0005] Therefore, this application provides an atmospheric pollutant sampling and monitoring device to solve the problem of particulate pollutant aggregation when an air pump draws in air. Utility Model Content

[0006] The purpose of this application is to propose an atmospheric pollutant sampling and monitoring device to address the problems existing in the prior art.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] An atmospheric pollutant sampling and monitoring device includes a sampling container, wherein the upper end of the sampling container is a sampling component and the interior is equipped with a gas composition detection component;

[0009] The sampling assembly includes a spacer sleeve disposed at the mouth of the sampling container. A drive disk is rotatably mounted between the outer wall of the spacer sleeve and the inner wall of the sampling container. The drive disk is driven by a drive structure and can rotate in both directions. Multiple sliders are slidably mounted on the upper surface of the spacer sleeve along the radial direction of the mouth of the sampling container. The upper surface of the drive disk is provided with vortex teeth. The bottom end of the slider is provided with vortex grooves that mesh with the vortex teeth. An arc-shaped cover is fixed at the upper end of each slider. Multiple covers are assembled to form a hemispherical cover.

[0010] Preferably, the gas composition detection assembly includes multiple orderly arranged chambers disposed in the sample tank, each chamber being equipped with a different ambient gas detection sensor. The multiple chambers are connected in sequence, and each connection point is equipped with an electric valve. A chamber on one side is connected to an air pump, and the air pump is connected to a cone shroud fixed on the inner wall of the partition.

[0011] Preferably, the sample tank is provided with a bent pipe on its side, and a support is connected to the bottom end of the bent pipe.

[0012] Preferably, the drive structure includes a motor embedded in a bent tube, and the output end of the motor is connected to a gear, which meshes with a gear ring fixed to the bottom end of the drive disc.

[0013] Preferably, the bend includes a first pipe fixedly connected to the support and a second pipe fixedly connected to the sample tank, and the first pipe and the second pipe are detachably connected.

[0014] Preferably, the side wall of the bent pipe is provided with heat dissipation holes.

[0015] Preferably, each of the covers has a sealing gasket on its side.

[0016] Compared with the prior art, this application provides an air pollutant sampling and monitoring device, which has the following beneficial effects:

[0017] During testing, the drive structure rotates the drive disc clockwise, causing all the sliders to move towards the axis of the sample container, resulting in the enclosure closing to form a tight hemispherical shape. The air in the testing area is then sealed within this hemispherical enclosure, isolating it from the outside environment. The gas composition detection component then draws the gas out of the enclosure for testing. This avoids the problem of particulate contaminants agglomerating and affecting detection accuracy and results when drawing air from an exposed environment, thus improving testing precision.

[0018] Other advantages, objectives and features of this application will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be learned from practice of this application. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of this application.

[0020] Figure 2 This is a cross-sectional view of this application.

[0021] Figure 3 This is a cross-sectional view of the sample tank assembly in this application.

[0022] Figure 4 This is a cross-sectional schematic diagram of the sample tank in this application.

[0023] Figure 5 This is a schematic diagram of the sliding engagement between the vortex teeth on the drive disk and the vortex of the slider in this application.

[0024] Figure 6 This is a schematic diagram of the driving structure of this application.

[0025] Figure 7 For the purposes of this application Figure 3 A partial schematic diagram of point A.

[0026] In the diagram: 1. Sample container; 2. Spacer; 3. Drive disc; 4. Vortex gear; 5. Slider; 6. Cover; 7. Sealing gasket; 8. Conical cover; 9. Air pump; 10. Chamber; 11. Ambient gas detection sensor; 12. Electric valve; 13. Exhaust pipe; 14. Hose; 15. Motor; 16. Gear; 17. Gear ring; 18. Bend; 19. Support. Detailed Implementation

[0027] The following will refer to the appendices in the embodiments of this application. Figure 1-7 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0028] Example 1: In order to solve the problems existing in the prior art, this example provides an atmospheric pollutant sampling and monitoring device, including a sampling tank 1, wherein the upper end of the sampling tank 1 is a sampling component and the interior is provided with a gas composition detection component;

[0029] The sampling assembly includes a spacer 2 disposed at the mouth of the sampling container 1. A drive disk 3 is rotatably mounted between the outer wall of the spacer 2 and the inner wall of the sampling container 1. The drive disk 3 is driven by a drive structure and can rotate in both directions. Multiple sliders 5 are slidably mounted on the upper surface of the spacer 2 along the radial direction of the mouth of the sampling container 1. The upper surface of the drive disk 3 is provided with vortex teeth 4. The bottom end of the slider 5 is provided with vortex grooves that mesh with the vortex teeth 4. An arc-shaped cover 6 is fixed to the upper end of each slider 5. Multiple covers 6 are assembled to form a hemispherical cover.

[0030] Principle details of this embodiment:

[0031] An air pollutant sampling and monitoring device includes a cylindrical sampling container 1 with an opening at the top.

[0032] The sampling container 1 is equipped with a sampling component at the upper opening for gas sampling; a gas composition detection component is located inside the sampling container 1 below the sampling component for air composition analysis and detection.

[0033] The sampling assembly includes a spacer 2 disposed at the mouth of the sampling container 1. The spacer 2 has protruding edges at both the upper and lower ends, and the protruding edges are fixed to the inner wall of the mouth of the sampling container 1. The spacer 2 forms a cavity inside the sampling container 1 for component installation.

[0034] The top wall of the partition, i.e., the upper convex edge of the partition sleeve 2, has multiple sliding grooves arranged radially along the opening of the sample tank 1. A slider 5 is slidably installed in each groove. The slider 5 is convex in shape, with its protruding part inserted into the groove and its lower part abutting against the bottom wall of the groove, thus achieving the sliding installation of the slider 5 within the groove. An arc-shaped cover 6 is fixed to the upper surface of the protruding part of each slider 5. Multiple covers 6 can be assembled together to form a hemispherical cover.

[0035] Inside the cavity, on the side wall below the slider 5, between the outer wall of the partition sleeve 2 and the inner wall of the sample tank 1, a drive disk 3 is rotatably mounted. The drive disk 3 is driven by a drive structure and can rotate in both directions. The upper end face of the drive disk 3 is provided with a vortex tooth 4, and the bottom end of the slider 5 is provided with a vortex groove that meshes with the vortex tooth 4, so that the slider 5 and the drive disk 3 are in a vortex sliding engagement.

[0036] Based on the above technical solution:

[0037] Before testing, the drive structure drives the drive disk 3 to reverse, thereby moving all the sliders 5 toward the side wall of the sample tank 1, causing the seals 6 to separate and form gaps.

[0038] During testing, the sample container 1 is placed in the sampling area and left to stand. Air seeps into the seals 6 through the gaps between them. Then, the drive mechanism rotates the drive disc 3 clockwise, causing all the sliders 5 to move towards the axis of the sample container 1, bringing the seals 6 together. This continues until adjacent drive discs 3 are close together, forming a tight hemispherical cover. At this point, the air in the detection area is sealed within the hemispherical cover and isolated from the outside environment. The gas composition detection component then draws the gas out of the cover for testing. This avoids the problem of particulate contaminants agglomerating and affecting detection accuracy and results caused by drawing air from an exposed environment, thus improving detection precision.

[0039] Example 2, a further embodiment of this solution, provides a specific structure for a gas composition detection component:

[0040] The gas composition detection assembly includes multiple orderly arranged chambers 10 disposed in the sample tank 1. Different environmental gas detection sensors 11 are provided in the chambers 10. The multiple chambers 10 are connected in sequence, and electric valves 12 are provided at the connection points. One side of the chamber 10 is connected to an air pump 9, and the air pump 9 is connected to a cone shroud 8 fixed on the inner wall of the partition 2.

[0041] Principle details of this embodiment:

[0042] The gas composition detection assembly includes multiple chambers 10, which are arranged in an orderly manner within the sample container 1. Each chamber 10 is equipped with a set of environmental gas detection sensors 11, such as carbon dioxide sensors, oxygen sensors, carbon monoxide sensors, VOC (volatile organic compound) gas sensors, sulfur dioxide sensors, nitrogen dioxide sensors, etc., for detecting different gas components. Adjacent chambers 10 are connected by gas supply pipes, each equipped with an electric valve 12. The two outermost chambers 10 are connected as follows: one chamber 10 is connected to a flexible hose 14, which in turn is connected to an air pump 9, which is connected to a cone shroud 8 fixed to the inner wall of the partition 2; the other chamber is connected to an exhaust pipe 13, which is also equipped with an electric valve 12.

[0043] Based on the above technical solution:

[0044] In operation, air is sealed inside multiple enclosures 6. An air pump 9 then delivers the sealed air through a hose 14 into the outermost chamber 10. After a certain interval (5 to 20 seconds), the ambient gas detection sensor 11 in that chamber 10 detects the corresponding gas components. The electric valve 12 of that chamber 10 then opens, transferring the gas to the next chamber 10. This process is repeated sequentially, with the gas remaining in each chamber 10 for a certain period to ensure all ambient gas detection sensors 11 are in full contact with the air components. Finally, the gas is discharged to the outside through the exhaust pipe 13 of the last chamber 10.

[0045] Through the above process, the gas is delivered in a sequential and intermittent manner to ensure sufficient contact between the gas and the ambient gas detection sensor 11, and to avoid insufficient contact due to excessive delivery speed, which would affect the accuracy of the detection results.

[0046] In a further embodiment of this solution, as described in Example 3, a bent pipe 18 is provided on the side of the sample container 1, and a support 19 is connected to the bottom end of the bent pipe 18. This provides an installation and support bracket to elevate the sample container 1 and place it more stably.

[0047] Example 4, a further embodiment of this solution, provides a specific drive structure: the drive structure includes a motor 15, which is embedded in a bent tube 18. A gear 16 is connected to the output end of the motor 15, and the gear 16 meshes with a gear ring 17 fixed to the bottom end of the drive disc 3. Both the gear 16 and the gear ring 17 are located within a cavity.

[0048] The motor 15 drives the gear 16 to rotate, and the gear 16 meshes with the gear ring 17 to drive the drive disk 3 to rotate, thereby realizing the movement of the slider 5. Furthermore, the motor 15 is embedded in the bent tube 18, with a hidden design, which does not occupy the installation space of other components in the sample tank 1.

[0049] In Example 5, a further embodiment of this solution, the bend 18 includes a first pipe fixedly connected to the support 19 and a second pipe fixedly connected to the sample tank 1. The first pipe and the second pipe are detachably connected. In this embodiment, the first pipe has an internal thread at its end, and the second pipe has an external thread at its end. The internal and external threads allow the first pipe and the second pipe to be detachably connected. This facilitates the disassembly, assembly, and maintenance of the motor 15; it also allows the sample tank 1 to be used under different conditions, whether suspended by the bend 18 and the support 19, or used alone, thus improving the flexibility of equipment use.

[0050] In a further embodiment of this solution, as described in Example 6, the side wall of the bent pipe 18 is provided with heat dissipation holes for heat dissipation of the motor 15.

[0051] In Example 7, a further embodiment of this solution, each of the sealing covers 6 is provided with a sealing gasket 7 on its side. This improves the tightness between the contact parts of the sealing covers 6.

[0052] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and application concept of this application, should be included within the scope of protection of this application.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An air pollutant sampling and monitoring device, characterized in that, Includes a sample tank (1), the upper end of which is a sampling component and the interior is equipped with a gas composition detection component; The sampling assembly includes a spacer (2) set at the mouth of the sample tank (1). A drive disk (3) is rotatably installed between the outer wall of the spacer (2) and the inner wall of the sample tank (1). The drive disk (3) is driven by a drive structure and can rotate in both directions. Multiple sliders (5) are slidably installed on the upper surface of the spacer (2) along the radial direction of the mouth of the sample tank (1). The upper surface of the drive disk (3) is provided with vortex teeth (4). The bottom end of the slider (5) is provided with a vortex groove that meshes with the vortex teeth (4). Each slider (5) is fixed with an arc-shaped cover (6) at its upper end. Multiple covers (6) are spliced ​​together to form a hemispherical cover.

2. The air pollutant sampling and monitoring device according to claim 1, characterized in that, The gas composition detection assembly includes multiple orderly arranged chambers (10) set in the sample tank (1). Different environmental gas detection sensors (11) are provided in the chambers (10). The multiple chambers (10) are connected in sequence, and electric valves (12) are provided at the connection points. One side of the chamber (10) is connected to an air pump (9), and the air pump (9) is connected to a cone shroud (8) fixed on the inner wall of the partition (2).

3. The air pollutant sampling and monitoring device according to claim 1, characterized in that, The sample container (1) is provided with a bent pipe (18) on its side, and a support (19) is connected to the bottom end of the bent pipe (18).

4. The air pollutant sampling and monitoring device according to claim 3, characterized in that, The drive structure includes a motor (15) embedded in a bend (18), and a gear (16) is connected to the output end of the motor (15). The gear (16) meshes with a toothed ring (17) fixed at the bottom end of the drive disk (3).

5. An air pollutant sampling and monitoring device according to claim 4, characterized in that, The bend (18) includes a first pipe fixedly connected to the support (19) and a second pipe fixedly connected to the sample tank (1), and the first pipe and the second pipe are detachably connected.

6. The air pollutant sampling and monitoring device according to claim 4, characterized in that, The side wall of the bent pipe (18) is provided with heat dissipation holes.

7. The air pollutant sampling and monitoring device according to claim 1, characterized in that, Each of the aforementioned covers (6) has a sealing gasket (7) on its side.

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