Atmospheric sampler
By introducing an automatic sealing mechanism and threaded connection design into the atmospheric sampler, the problems of gas cylinder leakage and contamination were solved, achieving efficient and accurate gas sampling and ensuring the integrity and independence of the samples.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN LANZHAN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-21
- Publication Date
- 2026-07-14
AI Technical Summary
The gas collection cylinders of existing collection devices lack a self-sealing structure, which makes gas samples prone to leakage or contamination by the external environment after collection, affecting the accuracy and independence of monitoring data.
An atmospheric sampler was designed, which adopts a structure including a connecting cover, a bracket, a movable column, a spring, and a sealing plate to achieve an automatic sealing mechanism, ensuring that the gas sample does not leak during the collection process. The threaded connection facilitates disassembly and cleaning, preventing cross-contamination.
It improves sampling efficiency and accuracy, ensures the integrity and independence of gas samples, avoids errors caused by external environmental interference, and ensures the reliability of each sampling result.
Smart Images
Figure CN224500084U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of environmental gas sampling technology, specifically an atmospheric sampler. Background Technology
[0002] Comprehensive ambient air monitoring provides a basis for studying the changing patterns and trends of air quality and for conducting forecasting and prediction of air pollution. It not only improves the supervision and protection of the atmospheric environment, but also provides important data support for fields such as air quality management, meteorological forecasting, health risk assessment, and scientific research.
[0003] However, current gas collection devices often lack self-sealing structures in their gas collection bottles. After collecting gas samples, these bottles require manual sealing. Improper operation during this process can lead to gas leaks, or external environmental factors such as dust and microorganisms can enter the gas collection bottle, causing sample contamination. This contamination can severely affect the analysis results of the gas samples, making the monitoring data inaccurate or invalid. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides an atmospheric sampler that offers advantages such as improved sample collection accuracy. It solves the problem that current sampling devices often lack self-sealing structures in their gas collection bottles. Without these structures, manual sealing is required after gas sample collection. Improper operation during this process can lead to gas leakage, or external environmental contaminants such as dust and microorganisms can enter the gas collection bottle, causing sample contamination. This contamination severely affects the analysis results of the gas samples, resulting in inaccurate or invalid monitoring data.
[0005] To achieve the above objectives, this application provides the following technical solution: an atmospheric sampler, comprising a filter barrel, a gas collection bottle, and a tripod. A collection bucket is fixedly connected to the upper end of the filter barrel, and an air pump is fixedly connected to the bottom end of the collection bucket. A filter funnel is fixedly connected to the input end of the air pump. A filter plate is fixedly connected inside the filter barrel. An outlet pipe is fixedly connected to one side of the outer wall of the filter barrel. A connector is fixedly connected to the end of the outlet pipe away from the filter barrel. A connecting cap is threadedly connected to the upper end of the gas collection bottle. A bracket is fixedly connected inside the connecting cap. A movable column is slidably connected inside the bracket. A spring is fixedly connected to the bottom end of the connecting cap. A sealing plate is fixedly connected to the bottom end of the movable column. A connecting block is fixedly connected to the bottom end of the filter barrel. A threaded column is fixedly connected to the upper end of the tripod.
[0006] Through the above scheme, the gas collecting bottle of this device provides an automatic sealing mechanism through a structure including a connecting cap, bracket, moving column, spring, and sealing plate. This ensures that the gas sample is not lost due to leakage during collection, thereby improving sampling efficiency. At the same time, the integrity of the seal also ensures the original state and concentration of the gas sample, avoiding errors caused by external environmental interference and improving sampling accuracy. During collection, when the gas sample is collected and introduced into the gas collecting bottle, the suction pump draws air into the filter barrel. The pressure of the gas pushes open the spring, allowing the collected air to enter the gas collecting bottle. After collection is complete, the suction pump stops working, and the elastic restoring force of the spring immediately pulls the sealing plate to tightly fit the inner wall of the connecting cap, achieving a rapid and effective seal. This effectively prevents gas leakage, improves sampling efficiency, and ensures the integrity and reliability of the gas sample. The threaded connection between the connecting cap and the gas collecting bottle allows for easy disassembly and cleaning after each collection, preventing cross-contamination between atmospheric samples collected from different batches and ensuring the independence and accuracy of each sampling.
[0007] Furthermore, a side skirt is fixedly connected to the upper end of the collection bucket, and four pillars arranged in a circular array are fixedly connected to the upper end of the side skirt, with rain shields fixedly connected to the upper ends of the four pillars.
[0008] Through the above solution, the design of the rain shield can effectively prevent rainwater from dripping directly into the collection tank and being sucked into the air pump, thus preventing damage to the air pump. The side skirts and pillars, as supporting structures, further protect the air pump inside the collection tank from interference from the external environment.
[0009] Furthermore, an insect-proof net is fixedly connected between the side skirt panel and the rain shield.
[0010] The above-mentioned method effectively prevents insects, mosquitoes, and other small organisms from entering the collection bucket, thus preventing these organisms from contaminating the samples or damaging the equipment, thereby affecting the accuracy of sampling and the normal operation of the equipment.
[0011] Furthermore, the end of the connecting cap furthest from the gas collecting bottle is threaded inside the connector.
[0012] The above-mentioned design ensures a tight connection between the connecting cap and the connector, effectively preventing gas sample leakage during collection and storage, thus guaranteeing the accuracy and reliability of the sampling results. It also facilitates installation and disassembly for users. When it is necessary to replace the gas collection bottle or clean the connecting parts, users can easily achieve quick disassembly and assembly by rotating the connecting cap, improving work efficiency.
[0013] Furthermore, the threaded post is threaded inside the connecting block.
[0014] The above solution provides a robust mechanical support through the threaded connection between the threaded column and the connecting block. The threaded connection between the threaded column and the connecting block facilitates installation and disassembly. Users can easily assemble or disassemble the device by rotating the threaded column, which improves work efficiency and ease of operation. Disassembly enhances the portability of the device and allows for rapid deployment at collection points.
[0015] Furthermore, the end of the spring furthest from the bracket is fixedly connected to the sealing plate.
[0016] With the above scheme, when the suction pump is working, the gas is drawn in and pushes the sealing plate into the gas collection bottle. At this time, the spring is stretched. Once the suction pump stops working, the spring uses its elastic restoring force to quickly pull the sealing plate back to its original position, tightly fitting the inner wall of the connecting cap to achieve automatic sealing. This design ensures that the gas sample will not leak after collection, guaranteeing the accuracy and integrity of the sampling.
[0017] Furthermore, the air outlet of the suction pump passes through the bottom of the collection bucket and extends into the interior of the filter bucket.
[0018] Through the above scheme, the suction pump transfers the collected gas sample from inside the collection bucket to the filter bucket through its outlet end, ensuring that the gas sample can flow smoothly and efficiently, and avoiding leakage or stagnation during the transmission process.
[0019] Furthermore, the sealing plate is made of rubber.
[0020] The above solution utilizes the elasticity and plasticity of rubber material, which allows it to fit tightly against the inner wall of the connecting cap or the mouth of the gas collecting bottle, forming an effective seal and ensuring that gas samples do not leak during collection and storage.
[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0022] This atmospheric sampler features a gas collection bottle with an automatic sealing mechanism, achieved through a structure including a connecting cap, support, movable column, spring, and sealing plate. This ensures that gas samples are not lost due to leakage during collection, thus improving sampling efficiency. Simultaneously, the integrity of the seal preserves the original state and concentration of the gas sample, avoiding errors caused by external environmental interference and improving sampling accuracy. During collection, when the gas sample is collected and introduced into the gas collection bottle, an air pump draws air into the filter cartridge. The gas pressure pushes open the spring, allowing the collected air to enter the gas collection bottle. Once collection is complete, the air pump stops, and the spring's elastic restoring force immediately pulls the sealing plate tightly against the inner wall of the connecting cap, achieving a rapid and effective seal. This effectively prevents gas leakage, improves sampling efficiency, and ensures the integrity and reliability of the gas sample. The threaded connection between the connecting cap and the gas collection bottle allows for easy disassembly and cleaning after each collection, preventing cross-contamination between different batches of atmospheric samples and ensuring the independence and accuracy of each sampling. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this application;
[0024] Figure 2 This is a schematic diagram of the internal structure of the collection bin in this application;
[0025] Figure 3 This is a schematic diagram of the internal structure of the collection device according to the present application.
[0026] Figure 4 This is a schematic diagram of the overall installation structure of the structure in this application.
[0027] In the picture:
[0028] 1. Filter canister; 2. Collection canister; 3. Air pump; 4. Filter hopper; 5. Filter plate; 6. Air outlet pipe; 7. Connector; 8. Air collection bottle; 9. Connecting cover; 10. Support; 11. Moving column; 12. Spring; 13. Sealing plate; 14. Connecting block; 15. Tripod; 16. Threaded column; 17. Side skirt; 18. Support column; 19. Rain shield; 20. Insect net. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, an atmospheric sampler includes a filter bucket 1, a gas collection bottle 8, and a tripod 15. A collection bucket 2 is fixedly connected to the upper end of the filter bucket 1, and an air pump 3 is fixedly connected to the bottom end of the collection bucket 2. A filter funnel 4 is fixedly connected to the input end of the air pump 3. A filter plate 5 is fixedly connected inside the filter bucket 1. An outlet pipe 6 is fixedly connected to one side of the outer wall of the filter bucket 1, and a connector 7 is fixedly connected to the end of the outlet pipe 6 away from the filter bucket 1. A connecting cap 9 is threadedly connected to the upper end of the gas collection bottle 8. The threaded connection between the connecting cap 9 and the gas collection bottle 8 facilitates disassembly and cleaning after each collection, preventing cross-contamination between atmospheric samples collected from different batches and ensuring the independence and accuracy of each sampling. The connecting cover 9 is internally fixedly connected to the bracket 10, and the bracket 10 is internally slidably connected to the movable column 11. The bottom of the connecting cover 9 is fixedly connected to the spring 12, and the bottom of the movable column 11 is fixedly connected to the sealing plate 13. The gas collecting bottle 8 provides an automatic sealing mechanism through the connecting cover 9, bracket 10, movable column 11, spring 12 and sealing plate 13, which ensures that the gas sample will not be lost due to leakage during the collection process, thereby improving the sampling efficiency. At the same time, the integrity of the seal also ensures the original state and concentration of the gas sample, avoids errors caused by external environmental interference, and improves the accuracy of sampling. The bottom of the filter bucket 1 is fixedly connected to the connecting block 14, and the upper end of the tripod 15 is fixedly connected to the threaded column 16.
[0031] Please see Figure 1 , Figure 2 and Figure 4 A side skirt 17 is fixedly connected to the upper end of the collection bucket 2. Four pillars 18 arranged in a circular array are fixedly connected to the upper end of the side skirt 17. A rain shield 19 is fixedly connected to the upper end of the four pillars 18. The design of the rain shield 19 can effectively prevent rainwater from dripping directly into the collection bucket 2 and being sucked into the suction pump 3, thus preventing damage to the suction pump 3. The side skirt 17 and the pillars 18, as a supporting structure, further protect the suction pump 3 inside the collection bucket 2 from interference from the external environment. An insect net 20 is fixedly connected between the side skirt 17 and the rain shield 19. The insect net 20 can effectively prevent insects, mosquitoes and other small organisms from entering the collection bucket 2, preventing these organisms from contaminating the sample or damaging the equipment, thereby affecting the sampling accuracy and normal operation of the equipment.
[0032] Please see Figure 1 , Figure 3 and Figure 4The end of the connecting cap 9 furthest from the gas collecting bottle 8 is threaded inside the connecting head 7. This threaded connection ensures a tight connection between the connecting cap 9 and the connecting head 7, effectively preventing gas sample leakage during collection and storage, thus guaranteeing the accuracy and reliability of the sampling results. It also facilitates installation and disassembly; when the gas collecting bottle 8 needs to be replaced or the connecting parts cleaned, the user can easily rotate the connecting cap 9 for quick assembly and disassembly, improving work efficiency. The threaded post 16 is threaded inside the connecting block 14. The threaded connection between the threaded post 16 and the connecting block 14 provides robust mechanical support. This threaded connection facilitates installation and disassembly; the user can easily assemble or disassemble the device by rotating the threaded post 16, improving work efficiency and ease of operation. Disassembly enhances the portability of the device and allows for rapid deployment at the collection point. The spring 12 furthest from the support 10... The end of the gas pump 3 is fixedly connected to the sealing plate 13. When the gas pump 3 is working, the gas is drawn in and pushes the sealing plate 13 into the gas collection bottle 8. At this time, the spring 12 is stretched. Once the gas pump 3 stops working, the spring 12 uses its elastic restoring force to quickly pull the sealing plate 13 back to its original position and tightly fit the inner wall of the connecting cover 9 to achieve automatic sealing. This design ensures that the gas sample will not leak after collection, ensuring the accuracy and integrity of the sampling. The outlet end of the gas pump 3 passes through the bottom end of the collection bucket 2 and extends into the inside of the filter bucket 1. The gas pump 3 transfers the collected gas sample from the inside of the collection bucket 2 to the filter bucket 1 through its outlet end, ensuring that the gas sample can flow smoothly and efficiently, avoiding leakage or stagnation during the transmission process. The sealing plate 13 is made of rubber material. The rubber material is elastic and malleable, and can tightly fit the inner wall of the connecting cover 9 or the opening of the gas collection bottle 8 to form an effective seal, ensuring that the gas sample will not leak during collection and storage.
[0033] In this embodiment, the atmospheric sampler's gas collection bottle 8, through a structure including a connecting cap 9, a bracket 10, a moving column 11, a spring 12, and a sealing plate 13, provides an automatic sealing mechanism. This ensures that the gas sample is not lost due to leakage during collection, thereby improving sampling efficiency. Simultaneously, the integrity of the seal guarantees the original state and concentration of the gas sample, avoiding errors caused by external environmental interference and improving sampling accuracy. During collection, when the gas sample is collected and introduced into the gas collection bottle 8, air is drawn into the filter container 1 by the suction pump 3. The gas pressure pushes the spring 12 open, allowing the collected air to enter the gas collecting bottle 8. Once the collection is complete, the suction pump 3 stops working, and the elastic restoring force of the spring 12 immediately pulls the sealing plate 13 to tightly fit the inner wall of the connecting cover 9, achieving a rapid and effective seal. This effectively prevents gas leakage, improves sampling efficiency, and ensures the integrity and reliability of the gas sample. Furthermore, the threaded connection between the connecting cover 9 and the gas collecting bottle 8 allows for easy disassembly and cleaning after each collection, preventing cross-contamination between atmospheric samples collected from different batches and ensuring the independence and accuracy of each sampling.
[0034] It should be noted that the connecting cap 9 uses a forward thread when connecting to the connector 7, and a reverse thread when connecting to the gas collecting bottle 8. When removing the gas collecting bottle 8, the connecting cap 9 must be removed together with it. When opening the gas collecting bottle 8, the connecting cap 9 only needs to be removed through the reverse thread to release the sample inside the gas collecting bottle 8.
[0035] The working principle of the above embodiments is as follows:
[0036] First, install the tripod 15 onto the connecting block 14 at the bottom of the filter bucket 1 via the threaded post 16, ensuring a stable installation. Then, start the suction pump 3. The suction pump 3 begins to work, drawing in external air through the filter bucket 4 at its input end. After initial filtration by the filter bucket 4, the air enters the collection bucket 2. Inside the collection bucket 2, the air is transferred to the filter bucket 1 through the outlet of the suction pump 3. The filter plate 5 inside the filter bucket 1 performs secondary filtration on the air, removing finer particles and impurities. The filtered air enters the gas collecting bottle 8 through the outlet pipe 6 and the connector 7. At this time, the gas pressure pushes the sealing plate 13 inside the connecting cover 9 towards the gas collecting bottle 8. As the gas cylinder 8 moves internally, the spring 12 is stretched. With the continuous entry of gas, the pressure inside the gas collecting bottle 8 gradually increases until the set sampling volume or sampling time is reached. When the suction pump 3 stops working, the spring 12 uses its elastic restoring force to quickly pull the sealing plate 13 back to its original position. The sealing plate 13 tightly fits the inner wall of the connecting cover 9 to achieve automatic sealing and prevent gas sample leakage. After sampling, the connecting cover 9, along with the gas collecting bottle 8, is rotated to remove it from the connector 7 and transferred to the laboratory. When testing is required, the connecting cover 9 is removed from the gas collecting bottle 8 through the reverse thread to release the sample inside the gas collecting bottle 8 for analysis.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An atmospheric sampler, comprising a filter barrel (1), a gas collection bottle (8), and a tripod (15), characterized in that: The filter barrel (1) is fixedly connected to the upper end of the collection barrel (2), the bottom end of the collection barrel (2) is fixedly connected to the air pump (3), the input end of the air pump (3) is fixedly connected to the filter bucket (4), the filter plate (5) is fixedly connected inside the filter barrel (1), the air outlet pipe (6) is fixedly connected to one side of the outer wall of the filter barrel (1), the end of the air outlet pipe (6) away from the filter barrel (1) is fixedly connected to the connector (7), the upper end of the gas collecting bottle (8) is threadedly connected to the connecting cover (9), the connecting cover (9) is fixedly connected to the bracket (10), the bracket (10) is slidably connected to the moving column (11), the bottom end of the connecting cover (9) is fixedly connected to the spring (12), the bottom end of the moving column (11) is fixedly connected to the sealing plate (13), the bottom end of the filter barrel (1) is fixedly connected to the connecting block (14), and the upper end of the tripod (15) is fixedly connected to the threaded column (16).
2. An atmospheric sampler according to claim 1, characterized in that: The upper end of the collection bucket (2) is fixedly connected to a side skirt (17), and the upper end of the side skirt (17) is fixedly connected to four pillars (18) arranged in a circular array, and the upper end of the four pillars (18) is fixedly connected to a rain shield (19).
3. An atmospheric sampler according to claim 2, characterized in that: An insect-proof net (20) is fixedly connected between the side skirt panel (17) and the rain shield panel (19).
4. An atmospheric sampler according to claim 1, characterized in that: The end of the connecting cap (9) away from the gas collecting bottle (8) is threaded inside the connector (7).
5. An atmospheric sampler according to claim 1, characterized in that: The threaded post (16) is threaded inside the connecting block (14).
6. An atmospheric sampler according to claim 1, characterized in that: The end of the spring (12) away from the bracket (10) is fixedly connected to the sealing plate (13).
7. An atmospheric sampler according to claim 1, characterized in that: The air outlet of the air pump (3) passes through the bottom of the collection bucket (2) and extends into the filter bucket (1).
8. An atmospheric sampler according to claim 1, characterized in that: The sealing plate (13) is made of rubber.