A scalable environmental gas monitoring and sampling device

Abstract

This utility model relates to the field of environmental monitoring technology and discloses an expandable environmental gas monitoring and sampling device. The utility model includes a shell; an extension module disposed on one side of the outer wall of the shell, including a base disposed on one side of the outer wall of the shell; and a sampling module disposed inside the shell and on top of the base, including a pump disposed inside the shell. By setting a double-stage nested telescopic structure, the sampling height can be flexibly adjusted. With the help of a sliding guide and a mechanical locking mechanism, the telescopic process is ensured to be stable and reliable, adapting to the multi-point gas sampling needs in different environments, and improving the applicability and ease of operation of the device.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, specifically to an expandable environmental gas monitoring and sampling device. Background Technology

[0002] Traditional environmental gas sampling equipment often uses fixed-height sampling or portable manual collection methods, typically employing a pumping method to extract the target gas into a sampling bag or adsorption tube for storage and subsequent analysis.

[0003] However, existing gas sampling equipment has revealed significant shortcomings in practical use. On the one hand, most devices have a fixed sampling height, which cannot be flexibly adjusted according to monitoring needs, making it difficult to adapt to the study of gas concentration distribution at different heights and limiting the representativeness and scientific rigor of the sampling. On the other hand, although some adjustable sampling devices have telescopic functions, their simple structure lacks reliable locking and guiding mechanisms, making them prone to problems such as unstable sliding and height retraction, affecting operational safety and sampling accuracy. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an expandable environmental gas monitoring and sampling device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an expandable environmental gas monitoring and sampling device, comprising a housing; an extension module disposed on one side of the outer wall of the housing, including a base disposed on one side of the outer wall of the housing; and a sampling module disposed inside the housing and on top of the base, including a pump disposed inside the housing.

[0006] As a further description of the above technical solution:

[0007] The elongation module includes: a first extension component disposed on the top of the base; and a second extension component disposed inside the first extension component.

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

[0009] The first extension component includes: an outer tube disposed on the top of the base; a first sliding tube that slides up and down inside the outer tube; a first locking hole arranged vertically on one side of the outer wall of the first sliding tube; a first locking bolt threadedly connected to the top side of the outer tube and threadedly connected to the first locking hole at the bottom; a first sliding strip disposed on both sides of the first sliding tube; and a first sliding groove disposed on the inner walls of both sides of the outer tube, with the first sliding strip sliding inside the first sliding groove.

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

[0011] The second extension assembly includes: a second sliding tube that slides up and down inside a first sliding tube; a second locking hole arranged vertically on one side of the outer wall of the second sliding tube; a second locking bolt threaded to the top side of the first sliding tube and threaded to the second locking hole at the bottom; a second sliding strip disposed on both sides of the second sliding tube; a second sliding groove disposed on the inner walls of both sides of the first sliding tube, with the second sliding strip sliding inside the second sliding groove; and an air inlet seat disposed at the top of the second sliding tube for drawing in sampling gas.

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

[0013] The sampling module includes: an air intake assembly disposed inside the outer tube, the first sliding tube, and the second sliding tube; and a storage assembly disposed inside the outer casing.

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

[0015] The air intake assembly includes: a filter plate disposed on the outer wall of the air intake seat for filtering large particulate impurities; a spiral flexible tube disposed inside the outer tube, the first sliding tube, and the second sliding tube, with its top sealed to the bottom pipe of the air intake seat; an airflow chamber disposed inside the base, with its top sealed to the bottom pipe of the spiral flexible tube; and a rigid pipe disposed inside the outer shell, with one end extending into the base and sealed to one end of the airflow chamber pipe, and the other end sealed to the extraction pump's air intake port pipe.

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

[0017] The storage assembly includes: an airflow duct, one end of which is sealed to the outlet duct of the extraction pump; an airflow connector, located inside the housing, one end of which is sealed to the other end of the airflow duct; a spring bracket, located inside the other end of the airflow connector; a compression spring, located inside the airflow connector, one end of which is welded to the spring bracket, and a damping rod is provided inside; a rubber plug, which moves horizontally inside the airflow connector, one end of which is fixedly connected to the other end of the compression spring, and the other end of which blocks the connection between the airflow duct and the airflow connector; an air storage chamber, located inside the housing and on one side of the extraction pump, with one side wall sealed to the other end of the airflow connector; and a sealing connector, located at the top of the housing, with its bottom sealed to the top duct of the air storage chamber.

[0018] This utility model has the following beneficial effects:

[0019] 1. By setting up a double-level nested telescopic structure, the sampling height can be flexibly adjusted. Combined with the sliding guide and mechanical locking mechanism, the telescopic process is ensured to be smooth and reliable, adapting to the multi-point gas sampling needs in different environments and improving the applicability and ease of operation of the equipment.

[0020] 2. By adopting an automatic sealing gas storage structure driven by air pressure, the gas is drawn in and pushes the rubber plug to compress the spring, allowing the gas to flow into the storage chamber in one direction. After stopping, the spring returns to its original position to achieve a reliable seal, preventing sample leakage and ensuring the integrity of the gas sample and the accuracy of the detection. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of an expandable environmental gas monitoring and sampling device proposed in this utility model;

[0022] Figure 2 This is an overall side view of an expandable environmental gas monitoring and sampling device proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the stretching module of an expandable environmental gas monitoring and sampling device proposed in this utility model.

[0024] Figure 4 This is a half-sectional schematic diagram of the elongated module of an expandable environmental gas monitoring and sampling device proposed in this utility model;

[0025] Figure 5 This is a half-sectional schematic diagram of the casing of an expandable environmental gas monitoring and sampling device proposed in this utility model;

[0026] Figure 6 This utility model proposes an expandable environmental gas monitoring and sampling device. Figure 5 Enlarged view at point A.

[0027] Legend:

[0028] 1. Outer shell; 2. Extension module; 21. Base; 22. First extension assembly; 221. Outer tube; 222. First sliding tube; 223. First locking hole; 224. First locking bolt; 225. First sliding bar; 226. First sliding groove; 23. Second extension assembly; 231. Second sliding tube; 232. Second locking hole; 233. Second locking bolt; 234. Second sliding bar; 235. Second sliding groove; 236. Air inlet seat; 3. Sampling module; 31. Extraction pump; 32. Air inlet assembly; 321. Filter plate; 322. Spiral hose; 323. Airflow chamber; 324. Rigid pipe; 33. Storage assembly; 331. Airflow pipe; 332. Airflow connector; 333. Spring bracket; 334. Compression spring; 335. Rubber plug; 336. Air storage chamber; 337. Sealing joint. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Example 1:

[0033] like Figures 1 to 6 As shown, this embodiment provides an expandable environmental gas monitoring and sampling device, including: a housing 1; an extension module 2 disposed on one side of the outer wall of the housing 1, including a base 21 disposed on one side of the outer wall of the housing 1; and a sampling module 3 disposed inside the housing 1 and on top of the base 21, including a pump 31 disposed inside the housing 1.

[0034] In this embodiment, the elongation module 2 and the sampling module 3 constitute an expandable environmental gas monitoring and sampling device according to this application.

[0035] It should also be noted that the ambient gases mentioned in this application can be volatile organic compounds, industrial emission gases, harmful gases, etc. Figure 1 In this embodiment, an ambient gas is used as an example of industrial emission gas. Of course, other types of ambient gases can also adopt a similar structure, which will not be described in detail below.

[0036] It should also be understood that the extraction pump 31 was purchased from the market and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0037] In this embodiment, the outer casing 1 is made of high-strength aluminum alloy to protect the internal components and prevent external interference. The extension module 2 includes a base 21 for supporting and fixing the extension module 2. The sampling module 3 includes a pump 31 for collecting and transferring gas samples. The extension module 2 adjusts the sampling height, and the sampling module 3 collects gas samples and transfers them to the storage component 33 for storage. This provides scalable sampling functionality, ensuring accurate collection and storage of gas samples and adapting to sampling needs at different heights.

[0038] Example 2:

[0039] Based on Embodiment 1, in order to provide a flexible elongation function, an elongation module 2 is provided on one side of the outer wall of the outer casing 1.

[0040] Specifically, the elongation module 2 includes: a first extension component 22 disposed on the top of the base 21; and a second extension component 23 disposed inside the first extension component 22.

[0041] In this embodiment, the first extension component 22 is used for initial extension. The second extension component 23 is used for further extension. The first extension component 22 and the second extension component 23 achieve height adjustment through a sliding and locking mechanism. This provides flexible extension functionality to adapt to sampling requirements at different heights.

[0042] Specifically, the first extension component 22 includes: an outer tube 221, disposed on the top of the base 21; a first sliding tube 222, which slides up and down inside the outer tube 221; a first locking hole 223, which is arranged vertically on one side of the outer wall of the first sliding tube 222; a first locking bolt 224, which is threaded to the top side of the outer tube 221 and threaded to the bottom of the first locking hole 223; a first sliding strip 225, disposed on both sides of the first sliding tube 222; and a first sliding groove 226, which is opened on both sides of the inner wall of the outer tube 221, and the first sliding strip 225 slides inside the first sliding groove 226.

[0043] In a preferred embodiment, the outer tube 221 is a hollow cylindrical structure used to accommodate the first sliding tube 222. The first sliding tube 222 is also a hollow cylindrical structure used for height adjustment. The first locking hole 223 is used to lock the position. The first locking bolt 224 is used to fix the first sliding tube 222. When the first sliding tube 222 is pulled upward, the first sliding bar 225 slides within the first sliding groove 226. When the appropriate height is reached, the first locking bolt 224 is rotated and screwed into the corresponding first locking hole 223, locking the height of the first sliding tube 222. This provides stable extension and locking functions, ensuring the precise position of the first sliding tube 222.

[0044] Specifically, the second extension component 23 includes: a second sliding tube 231 that slides up and down inside the first sliding tube 222; a second locking hole 232 that is arranged vertically on one side of the outer wall of the second sliding tube 231; a second locking bolt 233 that is threaded to the top side of the first sliding tube 222 and threaded to the bottom of the second locking hole 232; a second sliding strip 234 that is disposed on both sides of the second sliding tube 231; a second sliding groove 235 that is disposed on both sides of the inner wall of the first sliding tube 222 and the second sliding strip 234 slides inside the second sliding groove 235; and an air inlet seat 236 that is disposed on the top of the second sliding tube 231 for drawing in sampling gas.

[0045] In this embodiment, the second sliding tube 231 is a hollow cylindrical structure used for further height adjustment. A rain shield is provided at the top of the air inlet seat 236, and air inlets are opened around its perimeter for drawing in sampling gas. Pulling the second sliding tube 231 upwards causes the second sliding bar 234 to slide within the second sliding groove 235. When a suitable height is reached, the second locking bolt 233 is rotated and screwed into the corresponding second locking hole 232, locking the height of the second sliding tube 231. This provides flexible extension and locking functions, ensuring the precise position of the second sliding tube 231 and adapting to sampling requirements at different heights.

[0046] Example 3:

[0047] Based on Embodiment 2, a sampling module 3 is provided inside the housing 1 and on the top of the base 21 in order to provide efficient gas collection and storage functions.

[0048] Specifically, the sampling module 3 includes: an air intake assembly 32, which is disposed inside the outer tube 221, the first sliding tube 222, and the second sliding tube 231; and a storage assembly 33, which is disposed inside the outer casing 1.

[0049] With this configuration, the air intake assembly 32 is used to collect gas samples, and the storage assembly 33 is used to store the collected gas samples. The sampling module 3 collects gas samples through the air intake assembly 32 and stores them through the storage assembly 33. This provides efficient gas collection and storage functions, ensuring the accuracy and integrity of the samples.

[0050] Specifically, the air intake assembly 32 includes: a filter plate 321 disposed on the outer wall of the air intake seat 236 for filtering large particulate impurities; a spiral hose 322 disposed inside the outer tube 221, the first sliding tube 222 and the second sliding tube 231, with its top sealed to the bottom pipe of the air intake seat 236; an airflow chamber 323 disposed inside the base 21, with its top sealed to the bottom pipe of the spiral hose 322; and a rigid pipe 324 disposed inside the outer shell 1, with one end extending into the base 21 and sealed to one end of the airflow chamber 323, and the other end sealed to the air intake port pipe of the extraction pump 31.

[0051] The filter plate 321 has an arc-shaped structure and several filter holes for filtering large particulate impurities. The spiral flexible tube 322 has a spiral structure for transporting gas samples. The rigid tube 324 has an L-shaped structure for transporting gas samples. External sampling gas enters through the air inlet 236. Large particulate impurities are blocked by the filter plate 321, and the gas enters the spiral flexible tube 322, then enters the airflow chamber 323, and then is transported to the extraction pump 31 through the rigid tube 324. This provides efficient gas collection and transportation functions, ensuring the accuracy and integrity of the samples.

[0052] Specifically, the storage component 33 includes: an airflow duct 331, one end of which is sealed to the outlet duct of the extraction pump 31; an airflow connector 332, disposed inside the housing 1, one end of which is sealed to the other end of the airflow duct 331; a spring bracket 333, disposed inside the other end of the airflow connector 332; a compression spring 334, disposed inside the airflow connector 332, one end of which is welded to the spring bracket 333, and a damping rod is disposed inside; a rubber plug 335, which moves horizontally inside the airflow connector 332, one end of which is fixedly connected to the other end of the compression spring 334, and the other end of which is blocked at the connection between the airflow duct 331 and the airflow connector 332; a gas storage chamber 336, disposed inside the housing 1, located on one side of the extraction pump 31, and one side wall of which is sealed to the other end of the airflow connector 332; and a sealing connector 337, disposed on the top of the housing 1, and the bottom of which is sealed to the top duct of the gas storage chamber 336.

[0053] In this embodiment, the airflow pipe 331 has an L-shaped structure for transporting gas samples. The spring bracket 333 supports the compression spring 334. The rubber plug 335 has a conical structure for controlling gas entry into the gas storage chamber 336. The gas storage chamber 336 stores the gas sample. The sealing connector 337 connects to an external pipe for gas extraction. Gas enters the airflow connector 332 through the airflow pipe 331, increasing the gas pressure and pushing the rubber plug 335 towards the gas storage chamber 336. The compression spring 334 compresses, and the gas enters the gas storage chamber 336 for storage. When gas needs to be extracted, it is extracted through the sealing connector 337 via an external pipe. This provides efficient gas storage and extraction functions, ensuring the accuracy and integrity of the samples.

[0054] In actual use, the user first places the outer casing 1 at the location where the gas needs to be sampled, and then pulls the second sliding tube 231 upward to adjust the height at which the gas needs to be extracted. The second sliding strips 234 on both sides of the second sliding tube 231 slide in the second sliding grooves 235 on both sides of the inner wall of the first sliding tube 222. When the air inlet seat 236 is at the desired height, the spiral hose 322 is stretched. The user rotates the second locking bolt 233 and screws it into the corresponding second locking hole 232 to lock the height of the second sliding tube 231. If the height is still insufficient, the user can also pull the first sliding tube 222. The first sliding strips 225 on both sides of the first sliding tube 222 slide in the first sliding grooves 226 on both sides of the inner wall of the outer tube 221. When the appropriate height is reached, the user rotates the first locking bolt 224 and screws it into the corresponding first locking hole 223 to lock the height of the first sliding tube 222. Next, the user activates the extraction pump 31. External sampling gas enters through the inlet seat 236. Simultaneously, large particles are blocked by the filter plate 321, while the gas enters the spiral hose 322, then the airflow chamber 323, and then flows into the rigid pipe 324. It then enters the interior through the extraction port of the extraction pump 31, and finally through the outlet of the extraction pump 31 into the airflow pipe 331. At this time, the air pressure inside the airflow pipe 331 increases, which pushes the rubber plug 335, causing it to move towards the gas storage chamber 336. The compression spring 334 is compressed, connecting the airflow connector 332 to the internal channel of the airflow pipe 331. Gas then enters the gas storage chamber 336 through the airflow connector 332 for storage. When gas needs to be removed, the user connects the external pipe to the sealing connector 337, opening the connection between the sealing connector 337 and the internal channel of the gas storage chamber 336, allowing the gas to be extracted.

[0055] 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. An extensible environmental gas monitoring sampling apparatus, characterized by: Includes the outer casing (1); An elongation module (2) is disposed on one side of the outer wall of the housing (1), including a base (21) disposed on one side of the outer wall of the housing (1); The sampling module (3) is located inside the housing (1) and on top of the base (21), and includes a pump (31) located inside the housing (1).

2. The expandable environmental gas monitoring sampling device of claim 1, wherein: The elongation module (2) includes: a first extension component (22) disposed on the top of the base (21); The second extension component (23) is disposed inside the first extension component (22).

3. The expandable environmental gas monitoring sampling device of claim 2, wherein: The first extension component (22) includes: an outer tube (221) disposed on the top of the base (21); The first sliding tube (222) slides up and down inside the outer tube (221); The first locking hole (223) is arranged vertically on the outer wall of one side of the first sliding tube (222); The first locking bolt (224) is threaded on one side of the top of the outer tube (221) and threaded at the bottom to the first locking hole (223); The first sliding bar (225) is disposed on both sides of the first sliding tube (222); The first sliding groove (226) is formed on the inner walls of both sides of the outer tube (221), and the first sliding strip (225) slides inside the first sliding groove (226).

4. The expandable environmental gas monitoring sampling device of claim 2, wherein: The second extension component (23) includes: a second sliding tube (231) that slides up and down inside the first sliding tube (222); The second locking hole (232) is arranged vertically on the outer wall of one side of the second sliding tube (231); The second locking bolt (233) is threaded to the top side of the first sliding tube (222) and threaded to the bottom of the second locking hole (232); The second sliding bar (234) is provided on both sides of the second sliding tube (231); The second sliding groove (235) is formed on both sides of the inner wall of the first sliding tube (222), and the second sliding strip (234) slides inside the second sliding groove (235); An air inlet (236) is located at the top of the second sliding tube (231) for drawing in sampling gas.

5. The expandable environmental gas monitoring sampling device of claim 1, wherein: The sampling module (3) includes: an air intake assembly (32), which is disposed inside the outer tube (221), the first sliding tube (222), and the second sliding tube (231); Storage component (33) is located inside the housing (1).

6. The scalable environmental gas monitoring and sampling device according to claim 5, characterized in that: The air intake assembly (32) includes: a filter plate (321) disposed on the outer wall of the air intake seat (236) for filtering large particulate impurities; The spiral hose (322) is installed inside the outer tube (221), the first sliding tube (222) and the second sliding tube (231), and its top is sealed to the bottom pipe of the air inlet seat (236); An airflow chamber (323) is located inside the base (21), and its top is sealed to the bottom pipe of the spiral hose (322); A rigid pipe (324) is installed inside the outer casing (1), with one end extending into the base (21) and sealed to one end of the airflow chamber (323), and the other end sealed to the air extraction port of the extraction pump (31).

7. The scalable environmental gas monitoring and sampling device according to claim 5, characterized in that: The storage component (33) includes: an airflow duct (331), one end of which is sealed to the air outlet duct of the extraction pump (31); An airflow connector (332) is installed inside the housing (1), and one end is sealed to the other end of the airflow pipe (331); A spring bracket (333) is disposed inside the other end of the airflow connector (332); A compression spring (334) is disposed inside the airflow connector (332), and one end is welded to the spring bracket (333), and a damping rod is disposed inside it; The rubber plug (335) moves horizontally inside the airflow connector (332), with one end fixedly connected to the other end of the compression spring (334), and the other end blocking the connection between the airflow pipe (331) and the airflow connector (332); The gas storage chamber (336) is located inside the outer shell (1) and on one side of the extraction pump (31), and one side wall is sealed to the other end of the pipeline of the airflow connector (332); A sealing joint (337) is provided on the top of the housing (1) and its bottom is sealed to the top pipe of the gas storage chamber (336).

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