Self-cleaning structure of atmospheric environment monitoring sampling head

Abstract

The utility model relates to the technical field of atmospheric environment monitoring, and discloses an atmospheric environment monitoring sampling head self-cleaning structure which comprises a box body, a guide pipe is fixedly connected to the outside of the box body, a sampler is fixedly connected to the end, away from the box body, of the guide pipe, and a push column is slidably connected to the inner wall of the sampler. A push column is fixedly connected to the outer part of the sampler, a button is fixedly connected to the outer part of the push column, a top plate is fixedly connected to one end, far away from the button, of the push column, a spring is fixedly connected to one end, far away from the button, of the top plate, a clamping plate is fixedly connected to the outer part of the top plate, and a sealing plate is fixedly connected to the inner wall of the sampler. According to the utility model, when the button is pressed, the clamping plate leaves from the clamping block in the cap, so that the cap can be taken away, and when the button is released, the spring releases potential energy to act on the top plate, so that the top plate drives the clamping plate to reset to be continuously clamped in the cap, the working efficiency is improved, and the quality of monitoring data is ensured.

Description

Technical Field

[0001] This utility model relates to the field of raw material mixing technology, and in particular to a self-cleaning structure for an atmospheric environment monitoring sampling head. Background Technology

[0002] Atmospheric environmental monitoring sampling heads are key devices used to collect samples of gases or particulate matter in the atmosphere, and are widely used in environmental monitoring, pollution source monitoring, and indoor air quality monitoring. They capture harmful gases, total suspended particulates (TSP), inhalable particulates (PM10 or PM2.5), and other pollutants using techniques such as solution absorption or membrane gravimetry, helping scientists analyze pollution sources and mechanisms and assess their impact on health and the environment. With technological advancements, modern sampling heads possess high precision, multifunctionality, and portability, adapting to various complex environments and providing crucial data support for environmental protection.

[0003] The atmospheric environment monitoring sampling head mainly consists of an air inlet, a cutter, and a filter membrane. The air inlet guides air into the sampling head. The cutter filters out particulate matter within a certain size range, while the filter membrane collects the particulate matter. Its working principle involves a power unit that forces air into the sampling head. After being filtered by the cutter, particulate matter of the target size is retained on the filter membrane. The composition and content of the particulate matter on the filter membrane are then analyzed to monitor the atmospheric environment.

[0004] In existing technologies, some atmospheric environment monitoring sampling heads still use traditional threaded connections, which prevent quick disassembly of the sampling head. The difficulty in disassembling the sampling head can damage the sealing of the sampler, increase maintenance frequency and costs, and when comparing the atmospheric quality of different areas, if the sampling head is not replaced and cleaned in time, cross-contamination can occur between samples from different areas, affecting the reliability and scientific validity of the monitoring data. Therefore, a self-cleaning structure for atmospheric environment monitoring sampling heads is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a self-cleaning structure for atmospheric environment monitoring sampling heads, aiming to improve the problem that the sampling heads cannot be quickly disassembled in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A self-cleaning structure for an atmospheric environment monitoring sampling head includes a housing. A conduit is fixedly connected to the outside of the housing. A sampler is fixedly connected to the end of the conduit away from the housing. A push column is slidably connected to the inner wall of the sampler. A button is fixedly connected to the outside of the push column. A top plate is fixedly connected to the end of the push column away from the button. A spring is fixedly connected to the end of the top plate away from the button. A locking plate is fixedly connected to the outside of the top plate. A sealing plate is fixedly connected to the inner wall of the sampler. A fixing assembly for fixing subsequent components is movably connected to the outside of the sampler. A connecting assembly for connecting subsequent components is movably connected to the inner wall of the sampler.

[0008] As a further description of the above technical solution:

[0009] The fixing assembly includes a cap, the outer side of which is movably connected to the outside of the sampler, a sealing gasket movably connected to the inner wall of the cap, a partition fixedly connected to the inner wall of the cap, a plurality of elastic blocks slidably connected to the inner wall of the partition, and a sealing sleeve fixedly connected to the outer side of the plurality of elastic blocks.

[0010] As a further description of the above technical solution:

[0011] The connecting assembly includes a clamping plate, a plurality of locking blocks are fixedly connected to the inner wall of the clamping plate, a pressure sleeve is movably connected to the end of the plurality of locking blocks away from the clamping plate, a plurality of sliding plates are slidably connected to the inner wall of the pressure sleeve, a plurality of S-shaped elastic elements are fixedly connected to the inner wall of the pressure sleeve, and the outer side of the clamping plate is movably connected to the inner wall of the sampler.

[0012] As a further description of the above technical solution:

[0013] A filter membrane is movably connected to the inner wall of the clamping plate, and a filter screen is movably connected to the inner wall of the pressure sleeve;

[0014] As a further description of the above technical solution:

[0015] The end of the card block away from the clamping plate is in contact with the outside of the slide plate, and the end of the S-shaped elastic element away from the pressure sleeve is fixedly connected to the outside of the slide plate;

[0016] As a further description of the above technical solution:

[0017] The end of the spring away from the top plate is fixedly connected to the inner wall of the sealing plate, and the end of the clamping plate away from the top plate is movably connected to the inner wall of the cap.

[0018] As a further description of the above technical solution:

[0019] The end of the sealing gasket away from the cap is in contact with the outside of the sealing sleeve, and the end of the sealing sleeve away from the sealing gasket is in contact with the outside of the sealing plate;

[0020] As a further description of the above technical solution:

[0021] The end of the filter screen away from the pressure sleeve is in contact with the outside of the filter membrane, and the outside of the clamping plate is in contact with the outside of the pressure sleeve.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, pressing the button drives the push column to apply pressure to the top plate, causing the top plate to push the clamping plate backward while squeezing the spring. Due to the characteristics of the spring, it will compress and release the space. At this time, the clamping plate will separate from the locking block inside the cap, and the cap can be removed. When the button is released, the spring will release potential energy and act on the top plate, causing the top plate to drive the clamping plate to reset and continue to be locked inside the cap, which improves work efficiency and ensures the quality of monitoring data.

[0024] 2. In this utility model, the clamping plate is used to align the locking block with the slide plate in the pressure sleeve. Then, pressing and rotating are performed, and the locking block will be locked inside the pressure sleeve to fix the filter screen and filter membrane. During installation, the S-shaped elastic element will be compressed under pressure. During disassembly, by rotating the clamping plate in the opposite direction, the locking block will be pushed out of the pressure sleeve due to the S-shaped elastic element. Then, by covering the cap, the elastic block will slide in the groove inside the partition plate. At the same time, the sealing gasket will press down on the sealing sleeve and then apply it to the sealing plate, which improves the sealing effect. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the self-cleaning structure of the atmospheric environment monitoring sampling head proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the card plate of the self-cleaning structure of the atmospheric environment monitoring sampling head proposed in this utility model;

[0027] Figure 3 This is an exploded view of the elastic block of the self-cleaning structure of the atmospheric environment monitoring sampling head proposed in this utility model;

[0028] Figure 4 This is an exploded view of the slide plate structure of the self-cleaning structure of the atmospheric environment monitoring sampling head proposed in this utility model.

[0029] Legend:

[0030] 1. Box body; 2. Conduit; 3. Sampler; 4. Push column; 5. Button; 6. Top plate; 7. Spring; 8. Clamping plate; 9. Sealing plate; 10. Cap; 11. Sealing gasket; 12. Partition; 13. Elastic block; 14. Sealing sleeve; 15. Clamping plate; 16. Clamping block; 17. Slide plate; 18. Pressure sleeve; 19. S-shaped elastic element; 20. Filter screen; 21. Filter membrane. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 3 The present invention provides an embodiment of an atmospheric environment monitoring sampling head self-cleaning structure, including a housing 1. The housing 1 serves as the basic load-bearing part of the entire structure and provides installation positions for other components. A conduit 2 is fixedly connected to its exterior. The conduit 2 plays the role of transmitting gas and can guide the external atmosphere to be monitored to the subsequent components. A sampler 3 is fixedly connected to the end of the conduit 2 away from the housing 1. The sampler 3 is the key to atmospheric sampling. A push column 4 is slidably connected to its inner wall. The push column 4 can move linearly within the sampler 3, thereby driving other connected components to work together. A button 5 is fixedly connected to the outside of the push column 4. The button 5 is convenient for operators to press to trigger the relevant actions of the entire structure. A top plate 6 is fixedly connected to the end of the push column 4 away from the button 5. The top plate 6 can transmit force and drive the relevant components to move when subjected to force. A spring 7 is fixedly connected to the end of the top plate 6 away from the button 5. The spring 7 utilizes its own elastic properties to contract and store potential energy when compressed by external force, and can release potential energy to return to its original shape after the external force disappears. A locking plate 8 is fixedly connected to the outside of the top plate 6. The locking plate 8 is used to engage with other components, serving to fix or unlock them. A sealing plate 9 is fixedly connected to the inner wall of the sampler 3. The sealing plate 9 is mainly to ensure the sealing of the sampler 3 and prevent gas leakage from affecting the accuracy of sampling.

[0033] The sampler 3 has an externally connected fixing assembly for securing subsequent components. This fixing assembly ensures that the relevant components are stably installed on the sampler 3. The sampler 3 also has an internally connected connecting assembly for connecting subsequent components. This connecting assembly facilitates reliable connections between different components, ensuring the normal function of the entire sampling head's self-cleaning structure. The fixing assembly includes a cap 10, which primarily seals and protects the opening of the sampler 3. The cap 10 is externally connected to the outside of the sampler 3. A sealing gasket 11 is externally connected to the inner wall of the cap 10. The sealing gasket 11 enhances the sealing effect between the cap 10 and the sampler 3, preventing external gas from entering freely or internal gas from leaking. A partition 12 is fixedly connected to the inner wall of the cap 10, providing space for the installation and movement of other related components.

[0034] Multiple elastic blocks 13 are slidably connected to the inner wall of the partition 12. The multiple elastic blocks 13 slide on the inner wall of the partition 12 to adapt to different installation and sealing conditions. A sealing sleeve 14 is fixedly connected to the outside of the multiple elastic blocks 13. The sealing sleeve 14, together with the sealing gasket 11 and other components, further improves the sealing performance of the entire structure and ensures the stability of the internal environment during sampling. In use, pressing button 5 causes the pusher 4 to apply pressure to the top plate 6, which in turn causes the top plate 6 to push the retaining plate 8 backward, squeezing the spring 7. Due to the characteristics of the spring 7, it will compress and release the space. At this time, the retaining plate 8 will separate from the block inside the cap 10, and the cap 10 can be removed. This design makes it easy to open the cap 10 when it is necessary to operate or maintain the inside of the sampler 3, ensuring the convenience of operation. When button 5 is released, the spring 7 will release potential energy and act on the top plate 6, causing the top plate 6 to push the retaining plate 8 back to its original position and continue to be locked inside the cap 10. In this way, after the corresponding operation is completed, the cap 10 can be firmly fixed on the sampler 3, maintaining a good sealing state.

[0035] Reference Figures 2 to 4The connecting assembly includes a clamping plate 15, which is used to fix and support components such as the filter membrane 21. Multiple locking blocks 16 are fixedly connected to its inner wall. The multiple locking blocks 16 are the key structures for achieving connection and fixation with the pressure sleeve 18. The end of the multiple locking blocks 16 away from the clamping plate 15 is movably connected to the pressure sleeve 18. The pressure sleeve 18 and the clamping plate 15 cooperate with each other to fix the filter membrane 21 and the filter screen 20, etc. Multiple sliding plates 17 are slidably connected to the inner wall of the pressure sleeve 18. The sliding plates 17 can slide on the inner wall of the pressure sleeve 18 to facilitate the movement of the locking blocks 16 during installation and disassembly. Multiple S-shaped elastic elements 19 are fixedly connected to the inner wall of the pressure sleeve 18. The S-shaped elastic elements 19 use their own elasticity to play a role in assisting fixation and resetting during installation and disassembly. When installing the filter membrane 21 and filter screen 20, the clamping block 16 is aligned with the sliding plate 17 in the pressure sleeve 18 using the clamping plate 15, and then pressed and rotated. The clamping block 16 will then lock into the inside of the pressure sleeve 18 to fix the filter screen 20 and filter membrane 21. During installation, the S-shaped elastic element 19 will be compressed under pressure. This installation method ensures that the filter membrane 21 and filter screen 20 are firmly fixed in their respective positions, ensuring that they can stably perform their filtering and other functions during sampling. When disassembling, the clamping plate 15 is rotated in the opposite direction. At this time, the clamping block 16 will be pushed out of the inside of the pressure sleeve 18 due to the S-shaped elastic element 19, and then the cap 10 is closed.

[0036] When the cover is closed, the elastic block 13 slides in the internal groove of the partition 12, while the sealing gasket 11 presses down on the sealing sleeve 14 and then onto the sealing plate 9, making the interior of the sampler 3 completely sealed. This disassembly and subsequent sealing process facilitates maintenance operations such as replacing the filter membrane 21 and filter screen 20, while also ensuring a good sealing environment inside the sampler 3, ensuring the accuracy of the next sampling. The inner wall of the clamping plate 15 is movably connected to the filter membrane 21, which can perform preliminary filtration of the air entering the sampler 3, intercepting large particulate impurities, etc., to ensure the accuracy of subsequent monitoring. The inner wall of the pressure sleeve 18 is movably connected to the filter screen 20, which can further filter small particles in the air, and together with the filter membrane 21, achieves a better filtration effect, making the gas entering the sampler 3 for monitoring purer. The end of the filter screen 20 away from the pressure sleeve 18 is in contact with the outside of the filter membrane 21. This close contact can prevent gas from passing through the gap between the two without being fully filtered. The outside of the clamping plate 15 is in contact with the outside of the pressure sleeve 18, ensuring the compactness of the overall structure. This ensures that there will be no loosening between the components after installation and fixing, thus guaranteeing the stable realization of the filtration function.

[0037] Reference Figure 2 and Figure 4The end of the locking block 16 furthest from the clamping plate 15 is in contact with the outside of the sliding plate 17. This contact allows the locking block 16 to move smoothly during rotation and other operations, facilitating engagement or disengagement with the pressure sleeve 18. The end of the S-shaped elastic element 19 furthest from the pressure sleeve 18 is fixedly connected to the outside of the sliding plate 17. During installation or disassembly, the S-shaped elastic element 19, based on its connection with the sliding plate 17, can better exert its elasticity, assisting the locking block 16 in completing the corresponding fixing or disengagement actions, ensuring the reliable operation of the entire connection assembly. The end of the spring 7 furthest from the top plate 6 is fixedly connected to the inner wall of the sealing plate 9. This connection method provides the spring 7 with a stable support point during extension and contraction, enabling it to more stably perform its function of storing and releasing potential energy. The end of the locking plate 8 furthest from the top plate 6 is movably connected to the inner wall of the cap 10, facilitating engagement or disengagement between the locking plate 8 and the corresponding structure inside the cap 10, thereby realizing the fixing and disassembly operations of the cap 10 and ensuring the normal opening and closing function of the sampler 3.

[0038] Reference Figures 2 to 4 The end of the sealing gasket 11 furthest from the cap 10 contacts the outside of the sealing sleeve 14. This contact enhances the sealing fit between the two, preventing gas leakage from the joint. The end of the sealing sleeve 14 furthest from the sealing gasket 11 contacts the outside of the sealing plate 9, further improving the sealing performance of the entire sampler 3 opening and ensuring that internal gas will not leak out, thus guaranteeing the airtightness of the sampling environment and ensuring the accuracy of the sampling data. The end of the filter screen 20 furthest from the pressure sleeve 18 contacts the outside of the filter membrane 21. This close contact forms a complete filtration system, more effectively intercepting and filtering impurities in the atmosphere. The outside of the clamping plate 15 contacts the outside of the pressure sleeve 18, ensuring the firmness of the entire filter component installation and preventing loosening or displacement during use, ensuring the continuous and stable operation of the filtration function.

[0039] Working principle: In use, pressing button 5 drives push column 4 to apply pressure to top plate 6, causing top plate 6 to push back spring 7 while clamping plate 8. Due to the characteristics of spring 7, it will compress and release the moving space. At this time, clamping plate 8 will leave the block inside cap 10, and cap 10 can be removed. When button 5 is released, spring 7 will release potential energy and act on top plate 6, causing top plate 6 to drive clamping plate 8 to reset and continue to be clamped inside cap 10.

[0040] When installing the filter membrane 21 and filter screen 20, the clamping block 16 is aligned with the slide plate 17 in the pressure sleeve 18 by the clamping plate 15, and then pressed and rotated. The clamping block 16 will then lock into the inside of the pressure sleeve 18 to fix the filter screen 20 and filter membrane 21. During installation and rotation, the S-shaped elastic element 19 will be compressed by pressure. During disassembly, by rotating the clamping plate 15 in the opposite direction, the clamping block 16 will be pushed out of the inside of the pressure sleeve 18 by the S-shaped elastic element 19. Then, by covering the cap 10, the elastic block 13 will slide in the groove inside the partition plate 12. At the same time, the sealing gasket 11 will press down on the sealing sleeve 14 and then apply it to the sealing plate 9, so that the inside of the sampler 3 is completely sealed.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning structure for an atmospheric environment monitoring sampling head, comprising a housing (1), characterized in that: A conduit (2) is fixedly connected to the outside of the housing (1). A sampler (3) is fixedly connected to the end of the conduit (2) away from the housing (1). A push post (4) is slidably connected to the inner wall of the sampler (3). A button (5) is fixedly connected to the outside of the push post (4). A top plate (6) is fixedly connected to the end of the push post (4) away from the button (5). A spring (7) is fixedly connected to the end of the top plate (6) away from the button (5). A clamping plate (8) is fixedly connected to the outside of the top plate (6). A sealing plate (9) is fixedly connected to the inner wall of the sampler (3). A fixing assembly for fixing subsequent components is movably connected to the outside of the sampler (3). A connecting assembly for connecting subsequent components is movably connected to the inner wall of the sampler (3).

2. The self-cleaning structure of the atmospheric environment monitoring sampling head according to claim 1, characterized in that: The fixing assembly includes a cap (10), the outer side of which is movably connected to the outside of the sampler (3), a sealing gasket (11) is movably connected to the inner wall of the cap (10), a partition (12) is fixedly connected to the inner wall of the cap (10), a plurality of elastic blocks (13) are slidably connected to the inner wall of the partition (12), and a sealing sleeve (14) is fixedly connected to the outside of the plurality of elastic blocks (13).

3. The self-cleaning structure of the atmospheric environment monitoring sampling head according to claim 1, characterized in that: The connecting assembly includes a clamping plate (15), with multiple locking blocks (16) fixedly connected to the inner wall of the clamping plate (15). A pressure sleeve (18) is movably connected to one end of the multiple locking blocks (16) away from the clamping plate (15). Multiple sliding plates (17) are slidably connected to the inner wall of the pressure sleeve (18). Multiple S-shaped elastic elements (19) are fixedly connected to the inner wall of the pressure sleeve (18). The outer side of the clamping plate (15) is movably connected to the inner wall of the sampler (3).

4. The self-cleaning structure of the atmospheric environment monitoring sampling head according to claim 3, characterized in that: The inner wall of the clamping plate (15) is movably connected to a filter membrane (21), and the inner wall of the pressure sleeve (18) is movably connected to a filter screen (20).

5. The self-cleaning structure of the atmospheric environment monitoring sampling head according to claim 3, characterized in that: The end of the card block (16) away from the clamping plate (15) is in contact with the outside of the slide plate (17), and the end of the S-shaped elastic element (19) away from the pressure sleeve (18) is fixedly connected to the outside of the slide plate (17).

6. The self-cleaning structure of the atmospheric environment monitoring sampling head according to claim 2, characterized in that: The end of the spring (7) away from the top plate (6) is fixedly connected to the inner wall of the sealing plate (9), and the end of the clamping plate (8) away from the top plate (6) is movably connected to the inner wall of the cap (10).

7. The self-cleaning structure of the atmospheric environment monitoring sampling head according to claim 2, characterized in that: The end of the sealing gasket (11) away from the cap (10) is in contact with the outside of the sealing sleeve (14), and the end of the sealing sleeve (14) away from the sealing gasket (11) is in contact with the outside of the sealing plate (9).

8. The self-cleaning structure of the atmospheric environment monitoring sampling head according to claim 4, characterized in that: The end of the filter screen (20) away from the pressure sleeve (18) is in contact with the outside of the filter membrane (21), and the outside of the clamping plate (15) is in contact with the outside of the pressure sleeve (18).

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