High-low air linkage adjustable global air pollution three-dimensional sampling device

Abstract

The application discloses a high-low air linkage adjustable global air pollution stereoscopic sampling device, and relates to the technical field of air pollution sampling, which comprises a vertical plate and a filter screen. A driving assembly for unified high-low air sampling is arranged on the outer surface of the vertical plate, and the driving assembly comprises a hydraulic rod and a collection plate. The output end of the hydraulic rod is provided with the collection plate, one side of the collection plate is provided with an adjusting assembly for auxiliary adjustment, and the adjusting assembly comprises a piston disc, a connecting disc one, a threaded rod, an outer screw cylinder and a connecting disc two. The high-low air linkage adjustable global air pollution stereoscopic sampling device is driven by a servo motor to rotate a lead screw, cooperates with the sliding fit of a vertical frame and a built-in frame, can accurately adjust the working height of a sampling cylinder one and a sampling cylinder two, is suitable for different air sampling scenes of high-low air, realizes global stereoscopic sampling, can be synchronously rotated and adjusted during the height adjustment process, and can protect the lead screw through the vertical frame and the built-in frame when being reset downwards.

Description

Technical Field

[0001] This invention relates to the field of air pollution sampling technology, specifically to a high- and low-altitude linkage adjustable three-dimensional air pollution sampling device. Background Technology

[0002] Three-dimensional air sampling is a monitoring technology that collects atmospheric pollutants vertically in layers. It combines ground sampling equipment, high-tower sampling platforms, and drones carrying samplers to obtain air samples at multiple altitudes, including near-ground, mid-level, and upper-level atmospheres.

[0003] Existing sampling equipment has a fixed sampling stroke, which cannot flexibly adjust the air intake according to different sampling environments and pollutant concentrations, resulting in poor sampling versatility. At the same time, most sampling equipment has a single-height fixed sampling structure, which is difficult to adapt to the needs of three-dimensional sampling across high and low altitudes. Summary of the Invention

[0004] The purpose of this invention is to provide a high- and low-altitude linkage adjustable three-dimensional air pollution sampling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high- and low-altitude linkage adjustable three-dimensional air pollution sampling device, comprising a vertical plate and a filter screen. A driving assembly for unified high- and low-altitude sampling is installed on the outer surface of the vertical plate. The driving assembly includes a hydraulic rod and a collection plate. The output end of the hydraulic rod is fitted with the collection plate, and an auxiliary adjustment assembly is provided on one side of the collection plate. The adjustment assembly includes a piston disc, a first connecting disc, a threaded rod, an outer screw cylinder, and a second connecting disc. The first connecting disc is installed on one side of the piston disc. A threaded rod is rotatably mounted on one side of the first connecting disc, and an outer screw cylinder is installed on the external thread of the threaded rod. The second connecting disc is rotatably mounted at the end of the outer screw cylinder. A first sampling cylinder is installed on the outside of the piston disc, and a third one-way valve is provided at one end of the piston disc. The filter screen is located at one end outside the third one-way valve.

[0006] Furthermore, the driving assembly also includes a connecting rod and a connecting plate. The connecting plate is fixedly installed on the outer surface of the sampling cylinder, and the connecting rod is distributed in a ring on one side of the connecting plate. The connecting rod is fixedly connected to the upright plate.

[0007] Furthermore, a second sampling cylinder is installed below the first sampling cylinder, and the first and second sampling cylinders have the same structure. The adjustment components are distributed in a one-to-one correspondence with the first and second sampling cylinders.

[0008] Furthermore, a fixing plate is fixedly installed on the other side surface of the upright plate by bolts, and a threaded block is fixedly installed on one side of the fixing plate. An upright frame is fixedly installed on the outside of the threaded block, and an inner frame is slidably installed inside the upright frame.

[0009] Furthermore, a lead screw is installed on the internal thread of the threaded block, and a servo motor is provided at the bottom of the lead screw.

[0010] Furthermore, the servo motor is provided with a bottom frame, which is a hollow rectangular structure with an opening at the bottom, and a mounting plate is integrally installed on one side of the bottom frame.

[0011] Furthermore, both sampling tube one and sampling tube two are provided with a collection component for auxiliary collection on one side, and two sets of collection components are installed.

[0012] Furthermore, the collection assembly includes a one-way valve, a connecting pipe, a two-way valve, and a collection cylinder. The one-way valve is installed at one end, and the one-way valve is threadedly connected to the end of the one-way valve. The collection cylinder is installed at the end of the one-way valve.

[0013] Furthermore, the top of the collecting cylinder is provided with a sealing threaded cap, and the collecting cylinder is detachably connected to the connecting pipe threaded through a one-way valve.

[0014] This invention provides a high- and low-altitude linkage adjustable three-dimensional air pollution sampling device, which has the following beneficial effects: 1. This invention relies on a servo motor to drive the lead screw to rotate, and with the sliding cooperation of the vertical frame and the inner frame, the working height of sampling tube one and sampling tube two can be precisely adjusted, adapting to different airspace sampling scenarios at high and low altitudes, realizing full-area three-dimensional sampling. At the same time, the height can be adjusted synchronously by rotation, and the lead screw can be protected by the vertical frame and the inner frame when moving down to reset.

[0015] 2. This invention enables simultaneous high and low dual-point sampling through the adjustment component. The piston disc push-pull stroke is finely adjusted through the threaded transmission structure of the adjustment component, flexibly controlling the sampling air intake to adapt to the sampling needs of different environments and pollutant concentrations. At the same time, the equipment adopts a hydraulically driven negative pressure sampling mode, combined with a multi-one-way flow guidance structure of one-way valve one, one-way valve two, and one-way valve three, and a filter screen filtration structure, to completely avoid gas backflow, leakage, and impurity mixing problems, effectively ensuring the purity of the sampled gas and the accuracy of monitoring data. The collection cylinder adopts a threaded detachable structure and is equipped with a sealing threaded cap, which can quickly complete disassembly, depressurization, and sampling and testing operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-low altitude linkage adjustable all-area air pollution three-dimensional sampling device according to the present invention; Figure 2 This is a schematic diagram of the screw connection distribution structure of a high-low altitude linkage adjustable all-area air pollution three-dimensional sampling device according to the present invention; Figure 3This is a partial cross-sectional view of the bottom frame of a high-low altitude linkage adjustable three-dimensional air pollution sampling device according to the present invention. Figure 4 This is a schematic diagram of the adjustment component structure of a high-low altitude linkage adjustable all-area air pollution three-dimensional sampling device according to the present invention; Figure 5 This is a schematic diagram of the collection component structure of a high-low altitude linkage adjustable three-dimensional air pollution sampling device according to the present invention.

[0017] In the diagram: 1. Base frame; 2. Mounting plate; 3. Vertical plate; 4. Fixing plate; 5. Drive assembly; 501. Hydraulic rod; 502. Collection plate; 503. Connecting rod; 504. Connecting disc; 6. Sampling cylinder one; 7. Sampling cylinder two; 8. Threaded block; 9. Lead screw; 10. Vertical frame; 11. Internal frame; 12. Servo motor; 13. Adjustment assembly; 1301. Piston disc; 1302. Connecting disc one; 1303. Threaded rod; 1304. External screw barrel; 1305. Connecting disc two; 14. Collection assembly; 1401. One-way valve one; 1402. Connecting pipe; 1403. One-way valve two; 1404. Collection cylinder; 15. One-way valve three; 16. Filter screen. Detailed Implementation

[0018] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0019] like Figures 1-5As shown, a high- and low-altitude linkage adjustable all-area air pollution three-dimensional sampling device includes a base frame 1, a mounting plate 2, a vertical plate 3, a fixing plate 4, a drive assembly 5, a hydraulic rod 501, a collection plate 502, a connecting rod 503, a connecting plate 504, a sampling cylinder 1 6, a sampling cylinder 2 7, a threaded block 8, a lead screw 9, a vertical frame 10, an internal frame 11, a servo motor 12, an adjustment assembly 13, a piston plate 1301, a connecting plate 1302, a threaded rod 1303, an external screw cylinder 1304, a connecting plate 2 1305, a collection assembly 14, a one-way valve 1401, a connecting pipe 1402, and a one-way valve 2 1405. 3. A collection cylinder 1404, a one-way valve 15, and a filter screen 16 are included. A drive assembly 5 for uniform high and low altitude sampling is installed on the outer surface of the vertical plate 3. The drive assembly 5 includes a hydraulic rod 501 and a collection plate 502. The drive assembly 5 also includes a connecting rod 503 and a connecting disc 504. A connecting disc 504 is fixedly installed on the outer surface of the sampling cylinder 6. Connecting rods 503 are distributed in a ring on one side of the connecting disc 504 and are fixedly connected to the vertical plate 3. The output end of the hydraulic rod 501 is equipped with the collection plate 502, and an auxiliary adjustment assembly 13 is provided on one side of the collection plate 502. Component 13 includes a piston disc 1301, a first connecting disc 1302, a threaded rod 1303, an outer screw barrel 1304, and a second connecting disc 1305. The first connecting disc 1302 is mounted on one side of the piston disc 1301. The threaded rod 1303 is rotatably mounted on one side of the first connecting disc 1302. The outer screw barrel 1304 is mounted on the external thread of the threaded rod 1303. The second connecting disc 1305 is rotatably mounted at the end of the outer screw barrel 1304. A first sampling cylinder 6 is mounted on the outside of the piston disc 1301. A third check valve 15 is provided at one end of the piston disc 1301. A second sampling cylinder 7 is mounted below the first sampling cylinder 6. Sampling cylinder 6 and sampling cylinder 7 have the same structure, and the adjustment components 13 are distributed in a one-to-one correspondence with sampling cylinder 6 and sampling cylinder 7. The filter screen 16 is set at one end of the one-way valve 3 15. The drive component 5 uses the hydraulic rod 501 as the core drive component. The output end of the hydraulic rod 501 is fixedly assembled with the assembly plate 502. The connecting plate 504 is fixedly installed on the outside of sampling cylinder 6. The connecting plate 504 is fixedly connected to the vertical plate 3 through multiple sets of connecting rods 503 distributed in a ring. This ensures the stability of the overall structure of the sampling cylinder and also provides protection for the external structure of sampling cylinder 6 and sampling cylinder 7 through the connecting rods 503. When the hydraulic rod 501 is extended or retracted, the two sets of adjustment components 13 can be synchronously linked through the manifold plate 502 to make the piston plate 1301 of the adjustment component 13 slide smoothly inside the sampling cylinder 6 and the sampling cylinder 7, providing stable negative pressure power for the sampling operation. The adjustment component 13 is used to adapt to the precise adjustment of the sampling stroke and sampling pressure. During the operation, the push and pull stroke of the piston plate 1301 can be precisely adjusted through the threaded rotation between the connecting plate 1302, the threaded rod 1303, the outer screw cylinder 1304 and the connecting plate 2 1305, thereby precisely controlling the sampling air intake of the equipment.

[0020] like Figure 2 and Figure 5 As shown, a fixing plate 4 is fixedly installed on the other side surface of the upright plate 3 by bolts, and a threaded block 8 is fixedly installed on one side of the fixing plate 4. A vertical frame 10 is fixedly installed on the outside of the threaded block 8, and an inner frame 11 is slidably installed inside the vertical frame 10. A lead screw 9 is installed in the internal thread of the threaded block 8, and a servo motor 12 is installed at the bottom of the lead screw 9. A bottom frame 1 is installed outside the servo motor 12, and the bottom frame 1 is a hollow rectangular structure with an opening at the bottom. An installation plate 2 is integrally installed on one side of the bottom frame 1. The installation plate 2 is fixed to the installation area by bolts to complete the overall positioning of the equipment. The servo motor 12 drives the lead screw 9 to rotate as a power source. Through the threaded engagement of the lead screw 9 and the threaded block 8, the vertical frame 10 and the inner frame 11 slidably assembled inside it are driven to move up and down. The overall working height of the sampling tube 1 6 and the sampling tube 2 7 can be precisely adjusted to adapt to the air sampling needs of different airspace heights and realize full-area three-dimensional sampling. During height adjustment, the device can be rotated synchronously. During the downward reset process, the vertical frame 10 and the internal frame 11 can cover and protect the lead screw 9, effectively protecting the transmission structure. The bottom frame 1 has a hollow open structure, which can protect the servo motor 12 and assist in heat dissipation. Both sampling cylinder 1 6 and sampling cylinder 2 7 have a collection assembly 14 for auxiliary collection on one side. Two sets of collection assemblies 14 are installed. Each collection assembly 14 includes a one-way valve 1401, a connecting pipe 1402, a one-way valve 2 1403, and a collection cylinder 1404. One-way valve 1401 is installed at one end, and one-way valve 2 1403 is threaded onto the end of one-way valve 1401. The collection cylinder 1404 is installed at the end of one-way valve 2 1403. During sampling, the hydraulic rod 501, in conjunction with the collecting plate 502, can drive... The adjusting component 13 slides inside the sampling cylinder 6 and the sampling cylinder 7 respectively. When it is pulled away from the side of the sampling cylinder 6 and the sampling cylinder 7, the one-way valve 15 at one end of the sampling cylinder 6 and the sampling cylinder 7 only allows air to enter but not to exit, generating negative pressure. The gas can enter the connecting pipe 1402 from the one-way valve 1401 which only allows air to enter but not to exit, and then enter the one-way valve 1403 which only allows air to enter but not to exit, and enter the collection cylinder 1404 from the one-way valve 1403. After sampling is completed, it can be disassembled by using the threaded connection between the one-way valve 1403 and the connecting pipe 1402. In addition, the top of the collection cylinder 1404 is provided with a sealing threaded cap to facilitate test pressure relief sampling.

[0021] In summary, this high- and low-altitude adjustable, full-area air pollution three-dimensional sampling device firstly... Figures 1-5The structure shown in the diagram uses a servo motor 12 as a power source to drive the lead screw 9 to rotate. Through the threaded engagement of the lead screw 9 and the threaded block 8, the vertical frame 10 and its internally slidingly mounted inner frame 11 are moved up and down, allowing precise adjustment of the overall working height of sampling tube 1 6 and sampling tube 2 7. This adapts to air sampling needs at different airspace heights, achieving full-area three-dimensional sampling. The device can be adjusted in tandem with rotation during height adjustment, and during the downward reset process, the vertical frame 10 and inner frame 11 can cover and protect the lead screw 9, effectively protecting the transmission structure. The bottom frame 1 has a hollow open structure, which can protect the servo motor 12 and assist in heat dissipation. The mounting plate 2 is fixed to the installation area with bolts, completing the overall positioning of the device. Sampling tube 1 6 and sampling tube 2 7 have identical structural specifications and are each independently matched with a set of adjustment components 13, enabling synchronous three-dimensional sampling operations at both high and low points. The drive component 5 uses a hydraulic rod 501 as the core drive component, with the output end of the hydraulic rod 501 fixedly mounted on the assembly plate 502. A connecting plate 504 is fixedly installed on the outside of sampling cylinder 6. The connecting plate 504 is fixedly connected to the vertical plate 3 through multiple sets of connecting rods 503 distributed in a ring. This ensures the stability of the overall structure of the sampling cylinder and also provides protection for the external structure of sampling cylinder 6 and sampling cylinder 7 through the connecting rods 503. When the hydraulic rod 501 is extended or retracted, the two sets of adjusting components 13 can be synchronously linked through the manifold 502 to make the piston plate 1301 of the adjusting component 13 slide smoothly inside sampling cylinder 6 and sampling cylinder 7, providing stable negative pressure power for sampling. The adjusting component 13 is used to adapt to the precise adjustment of sampling stroke and sampling pressure. During operation, the push-pull stroke of the piston plate 1301 can be precisely adjusted through the threaded rotation between the connecting plate 1302, the threaded rod 1303, the outer screw cylinder 1304 and the connecting plate 2 1305, thereby precisely controlling the sampling air intake of the equipment. When the hydraulic rod 501 drives the piston disc 1301 to move away from the sampling cylinder, a closed negative pressure cavity is formed inside the sampling cylinder 6 and the sampling cylinder 7. At this time, the one-way valve 3 15 at the end of the cylinder is in a one-way open state, allowing air to enter but not exit; at the same time, the filter screen 16 set on the outside of the one-way valve 3 15 can effectively trap large particulate impurities in the air, preventing impurities from entering the cylinder and the collection structure, effectively ensuring the purity of the collected gas and improving the sampling accuracy. Under the action of the negative pressure suction inside the cylinder, the external polluted air is sucked into the collection component 14 to complete the sample collection. The equipment is equipped with two sets of collection components 14, which operate independently for the sampling cylinder 6 and the sampling cylinder 7 respectively. The external gas enters the connecting pipe 1402 through the one-way valve 1401, which can effectively prevent gas backflow and ensure the stability of the air intake; then the gas flows through the one-way valve 2 1403 for a second one-way flow, and finally flows smoothly into the collection cylinder 1404 to complete the collection of air pollutant samples.The entire sampling process utilizes multiple one-way valves in synergy to achieve a completely sealed, leak-free, and gas-backflow-free environment, effectively ensuring the accuracy and reliability of the sampling data. After sampling, the collection cylinder 1404 can be quickly disassembled and separated using the threaded detachable connection between one-way valve 1403 and connecting pipe 1402, making disassembly and assembly convenient and efficient. Simultaneously, the top of the collection cylinder 1404 is equipped with a sealing threaded cap, which can be opened at any time to complete subsequent testing operations such as pressure relief, sampling, and sample delivery. The entire device can also be installed and used with drones.

[0022] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high- and low-altitude linkage adjustable three-dimensional air pollution sampling device, comprising a vertical plate (3) and a filter (16), characterized in that, The outer surface of the vertical plate (3) is equipped with a drive assembly (5) for uniform high and low altitude sampling. The drive assembly (5) includes a hydraulic rod (501) and a collection plate (502). The output end of the hydraulic rod (501) is equipped with the collection plate (502). An auxiliary adjustment assembly (13) is provided on one side of the collection plate (502). The adjustment assembly (13) includes a piston disc (1301), a connecting disc one (1302), a threaded rod (1303), an outer screw cylinder (1304), and a connecting disc two (1305). A connecting disc (1302) is installed on one side of the piston disc (1301). A threaded rod (1303) is rotatably provided on one side of the connecting disc (1302). An external screw cylinder (1304) is installed on the external thread of the threaded rod (1303). A connecting disc (1305) is rotatably provided at the end of the external screw cylinder (1304). A sampling cylinder (6) is installed on the outside of the piston disc (1301). A one-way valve (15) is provided at one end of the piston disc (1301). A filter screen (16) is located at one end outside the one-way valve (15).

2. The high- and low-altitude linkage adjustable full-range air pollution three-dimensional sampling device according to claim 1, characterized in that, The drive assembly (5) further includes a connecting rod (503) and a connecting plate (504). The connecting plate (504) is fixedly installed on the outer surface of the sampling tube (6), and the connecting rod (503) is distributed in a ring on one side of the connecting plate (504), and the connecting rod (503) is fixedly connected to the upright plate (3).

3. The high- and low-altitude linkage adjustable three-dimensional air pollution sampling device according to claim 2, characterized in that, Sampling tube one (6) is installed below sampling tube two (7), and sampling tube one (6) and sampling tube two (7) have the same structure. The adjustment component (13) is distributed in a one-to-one correspondence with sampling tube one (6) and sampling tube two (7).

4. The high- and low-altitude linkage adjustable full-range air pollution three-dimensional sampling device according to claim 3, characterized in that, A fixing plate (4) is fixedly installed on the other side surface of the upright plate (3) by bolts, and a threaded block (8) is fixedly installed on one side of the fixing plate (4), and an upright frame (10) is fixedly installed on the outside of the threaded block (8), and an inner frame (11) is slidably installed inside the upright frame (10).

5. The high- and low-altitude linkage adjustable three-dimensional air pollution sampling device according to claim 4, characterized in that, The threaded block (8) has a lead screw (9) installed in its internal thread, and a servo motor (12) is provided at the bottom of the lead screw (9).

6. The high- and low-altitude linkage adjustable three-dimensional air pollution sampling device according to claim 5, characterized in that, The servo motor (12) is provided with a bottom frame (1) on the outside, and the bottom frame (1) is a hollow rectangular structure with an opening at the bottom, and a mounting plate (2) is integrally installed on one side of the bottom frame (1).

7. A high- and low-altitude linkage adjustable three-dimensional air pollution sampling device according to claim 6, characterized in that, Both sampling tube one (6) and sampling tube two (7) are provided with a collection component (14) for auxiliary collection on one side, and the collection component (14) is equipped with two sets.

8. The high- and low-altitude linkage adjustable three-dimensional air pollution sampling device according to claim 7, characterized in that, The collection assembly (14) includes a one-way valve (1401), a connecting pipe (1402), a one-way valve (1403), and a collection cylinder (1404). The one-way valve (1401) is installed at the end of the one-way valve (1401), and the one-way valve (1403) is threaded at the end of the one-way valve (1401). The collection cylinder (1404) is installed at the end of the one-way valve (1403).

9. A high- and low-altitude linkage adjustable three-dimensional air pollution sampling device according to claim 8, characterized in that, The top of the collecting cylinder (1404) is provided with a sealing threaded cap, and the collecting cylinder (1404) is detachably connected to the connecting pipe (1402) via a one-way valve (1403).

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