Gas sampling probe for environmental monitoring

Abstract

The utility model relates to the related technical field of gas sampling probes, in particular to a gas sampling probe for environmental monitoring, which comprises a base and a combined mechanism arranged on one side of the surface of the base. According to the gas sampling probe for environmental monitoring, through the arrangement of the combined mechanism, the exhaust fan is mounted on one side of the base, negative pressure is generated after the exhaust fan is started, air is driven to enter a system through the air inlet pipe, the air inlet cover is responsible for collecting surrounding air, the collected gas firstly passes through the mounting frame and the antifouling net, and the antifouling net can effectively filter out large-particle substances; meanwhile, a sealing strip is mounted on the inner wall of the mounting frame and is completely matched with the inner wall of the gas inlet cover, so that no leakage is ensured, the filtered gas enters the sampling gas box, and the sampling gas box is used for temporarily storing a gas sample for subsequent detection and analysis.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of gas sampling probe especially relates to a gas sampling probe for environmental monitoring. BACKGROUND

[0002] The gas sampling probe is a device for extracting gas samples from a specific environment, which usually includes a sampling tube, a filter assembly, and a connection interface, etc. Through filtering and sealing design, the sampling probe can effectively prevent external pollutants from mixing in, ensuring the purity of the collected gas and providing reliable samples for subsequent analysis. However, with the rapid development of technology, the functional requirements for gas sampling heads are becoming increasingly high. Therefore, there is an urgent need for a gas sampling probe for environmental monitoring.

[0003] However, the existing gas sampling probe for environmental monitoring, although it can achieve the effect of blocking solid pollutants through simple parts cooperation, the above-mentioned anti-pollution mechanism is relatively complex, and the failure rate of the device will increase during long-term use. Moreover, the device is difficult to disassemble, which affects the normal operation of the sampling work.

[0004] To solve the above problems, through retrieval, a gas sampling probe for environmental monitoring with publication number CN218098528U is disclosed. The document proposes "including an air extractor, an output pipe is installed at the output end of the air extractor, an internally threaded pipe is threadedly connected to the end of the output pipe, a one-way valve is installed at the end of the internally threaded pipe, a sampling air bag is installed at the end of the one-way valve, a sampling air inlet pipe is installed at the input end of the air extractor, and an air inlet cover is installed in communication at the top end of the sampling air inlet pipe. By setting the dirt blocking cover as a closed structure, the top magnetic shaft and the bottom magnetic shaft are respectively adsorbed with the magnetic suction pipe by vertically moving the dirt blocking cover, which can make the dirt blocking cover lift or fall, making the top of the air inlet cover closed or opened. By setting the sealing rubber ring, the overlap is more stable when closed. By setting the anti-pollution partition strip, solid pollutants can be prevented from invading, thereby providing a flexible open and close closed structure, achieving the effect of conveniently blocking solid pollutants, and realizing the effect of conveniently carrying out sampling operation", although the above-mentioned mechanism can achieve the effect of blocking solid pollutants through simple parts cooperation, the above-mentioned anti-pollution mechanism is relatively complex, and the failure rate of the device will increase during long-term use. Moreover, the device is difficult to disassemble, which affects the normal operation of the sampling work.

[0005] In view of this, the present case is produced through in-depth research on the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose lies in providing a kind of gas sampling probe for environmental monitoring, to solve the gas sampling probe for environmental monitoring in the above background art, although by simple parts cooperation, the effect of solid pollutant is blocked, but the above-mentioned anti-pollution mechanism is more complex, in long time use process, the failure rate of device will increase, and device is more difficult to remove, and then affect the normal operation of sampling work Problem.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of gas sampling probe for environmental monitoring, comprising:

[0009] Base,

[0010] Combination mechanism, it is set on the base;The combination mechanism includes air extractor, outer tube, check valve, air inlet pipe, sampling gas box, air inlet cover assembly, wherein, the air extractor is installed on the base, one end of outer tube is connected on the surface of the air extractor, check valve is installed on the surface of outer tube, the other end of outer tube is connected with sampling gas box, one end of air inlet pipe is connected on the surface of the air extractor, the other end of air inlet pipe is connected with air inlet cover assembly, the air inlet cover assembly includes air inlet cover, anti-pollution net is arranged in the air inlet cover, protection cover is detachably covered on the anti-pollution net.

[0011] Preferably, one end of air inlet pipe is connected on the surface of the air extractor by thread, wherein, first threaded groove is formed in the side of the air extractor, and air inlet pipe is threadedly connected in the inside of the first threaded groove.

[0012] Preferably, the other end of outer tube is connected with sampling gas box by thread, wherein, second threaded groove is formed in the other end of outer tube, and sampling gas box is threadedly connected in the inside of the second threaded groove.

[0013] Preferably, the other end of air inlet pipe is connected with air inlet cover assembly by thread, third threaded groove is formed in the other end of air inlet pipe, air inlet cover is threadedly connected in the inside of the third threaded groove, external thread is formed on the surface of the air inlet cover, fourth threaded groove is formed in the side of the air inlet cover, protection cover is threadedly connected on the surface of the external thread, mounting frame is threadedly connected in the inside of the fourth threaded groove, anti-pollution net is installed on the surface of the mounting frame, and sealing strip is installed on the inner wall of the mounting frame.

[0014] Preferably, the air inlet pipe is provided with two groups, and the lengths of the two groups of air inlet pipes are different.

[0015] Preferably, the size of the anti-pollution net and the inner wall of the air inlet cover is consistent, and the position of the anti-pollution net and the inner wall of the air inlet cover is opposite.

[0016] Preferably, the base is provided with a sealing strip at the connection with the air inlet pipe, the air inlet pipe is provided with a sealing strip at the connection, the sampling gas box is provided with a sealing strip at the connection with the extension pipe, and the air inlet pipe is provided with a sealing strip at the connection with the air inlet cover.

[0017] Preferably, the protective cover and the mounting frame form a mutual sliding structure.

[0018] Compared with the prior art, the gas sampling probe for environmental monitoring has the beneficial effects that: the combination mechanism is provided, the combination mechanism is matched by simple parts, and the solid pollutants are blocked, without the cooperation of multiple parts, so that the purity of the sampled gas is improved, and the whole structure is modularized, so that the device body is convenient to disassemble and maintain, and the flexibility of the mechanism is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor.

[0020] Figure 1 It is a side view of the appearance structure of the present application.

[0021] Figure 2 It is a sectional view of the combination mechanism of the present application.

[0022] Figure 3 It is a sectional view of the combination mechanism of the present application.

[0023] Figure 4 It is a side view of the appearance structure of the present application. Figure 2 It is an enlarged structure diagram of position A in the present application.

[0024] Figure 5 It is an enlarged structure diagram of position B in the present application. Figure 2 It is an enlarged structure diagram of position B in the present application.

[0025] Figure 6 It is an enlarged structure diagram of position C in the present application. Figure 3 It is an enlarged structure diagram of position C in the present application.

[0026] In the figure: 1, base; 2, combination mechanism; 201, air extractor; 202, overhanging pipe; 203, first threaded groove; 204, second threaded groove; 205, one-way valve; 206, air inlet pipe; 207, sampling gas box; 208, third threaded groove; 209, air inlet cover; 210, external thread; 211, fourth threaded groove; 212, protective cover; 213, mounting frame; 214, anti-fouling net; 215, sealing strip. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Embodiment:

[0029] It should be noted that the terms "first", "second" and the like in the description, claims and drawings of the present application are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified. In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Referring to Figures 1 to 6 The present application provides a gas sampling probe for environmental monitoring, comprising a base 1 and a combination mechanism 2, and the surface of the base 1 is provided with the combination mechanism 2;

[0032] The combined mechanism 2 comprises an air extractor 201, an overhanging pipe 202, a first threaded groove 203, a second threaded groove 204, a one-way valve 205, an air inlet pipe 206, a sampling gas box 207, a third threaded groove 208, an air inlet cover 209, an external thread 210, a fourth threaded groove 211, a protective cover 212, a mounting frame 213, an anti-fouling net 214 and a sealing strip 215, the surface of the base 1 is provided with the air extractor 201, the surface of the air extractor 201 is fixedly connected with the overhanging pipe 202, one side of the air extractor 201 is provided with the first threaded groove 203, the other side of the overhanging pipe 202 is provided with the second threaded groove 204, the surface of the overhanging pipe 202 is provided with the one-way valve 205, the inside of the first threaded groove 203 is threadedly connected with the air inlet pipe 206, the inside of the second threaded groove 204 is threadedly connected with the sampling gas box 207, the other side of the air inlet pipe 206 is provided with the third threaded groove 208, the inside of the third threaded groove 208 is threadedly connected with the air inlet cover 209, the surface of the air inlet cover 209 is provided with the external thread 210, one side of the air inlet cover 209 is provided with the fourth threaded groove 211, the surface of the external thread 210 is threadedly connected with the protective cover 212, the inside of the fourth threaded groove 211 is threadedly connected with the mounting frame 213, the surface of the mounting frame 213 is provided with the anti-fouling net 214, and the inner wall of the mounting frame 213 is provided with the sealing strip 215, through the arrangement of the air extractor 201, the overhanging pipe 202, the first threaded groove 203, the second threaded groove 204, the one-way valve 205, the air inlet pipe 206, the sampling gas box 207, the third threaded groove 208, the air inlet cover 209, the external thread 210, the fourth threaded groove 211, the protective cover 212, the mounting frame 213, the anti-fouling net 214 and the sealing strip 215, one side of the base 1 is provided with the air extractor 201, and the air extractor 201 generates negative pressure after being started, drives air to enter the system through the air inlet pipe 206, and the air inlet cover 209 is responsible for collecting the surrounding air, the collected gas first passes through the mounting frame 213 and the anti-fouling net 214, the anti-fouling net 214 can effectively filter out large particles, and the inner wall of the mounting frame 213 is provided with the sealing strip 215, which is completely matched with the inner wall of the air inlet cover 209, so that the whole process is leakage-free, the filtered gas enters the sampling gas box 207, and the sampling gas box 207 is used for temporarily storing the gas sample for subsequent detection and analysis.

[0033] Further, the air inlet pipe 206 is provided with two groups, and the lengths of the two groups of air inlet pipes 206 are different, through the arrangement of the air inlet pipe 206, the air inlet pipe 206 serves as a channel for air to enter the device, and the surrounding air is introduced into the system, ensuring the smooth progress of gas sampling, and the design can control the airflow path and improve the sampling efficiency, and the device is provided with two groups of air inlet pipes 206 with different lengths, which can collect gas from different heights or positions, expand the sampling range, and avoid the problem of incomplete or error gas samples caused by single sampling position.

[0034] Further, the anti-pollution net 214 is in size consistent with the inner wall of the air inlet cover 209, and the anti-pollution net 214 is in position opposite to the inner wall of the air inlet cover 209. By the arrangement of the anti-pollution net 214, the anti-pollution net 214 is installed on the mounting frame 213, and the main function of the anti-pollution net 214 is to filter large-particle substances in the sampling air, such as dust, impurities or suspended particles, which can protect the subsequent device from pollution and prolong the service life of the system. The anti-pollution net 214 is located between the air inlet cover 209 and the mounting frame 213, and serves as the first filtering barrier to effectively block particles from entering the sampling gas box 207, avoid damaging the air extractor 201 or affecting the accuracy of gas sampling. Finally, the anti-pollution net 214 cooperates with the mounting frame 213 and the sealing strip 215 to form a complete filtering unit, which can not only block particles, but also ensure the stability and efficiency of the filtering process, and improve the cleanliness of the sampling gas.

[0035] Further, the sealing strip 215 is arranged at the connection between the base 1 and the air inlet pipe 206, and the sealing strip 215 is arranged at the connection between adjacent air inlet pipes 206. By the arrangement of the sealing strip 215, the sealing strip 215 between the base 1 and the air inlet pipe 206 can prevent gas leakage at the connection between the base 1 and the air inlet pipe 206, thereby improving the overall air tightness of the system and ensuring that the air flow only follows the designed path, avoiding the entry of external air to affect the sampling results. The air inlet pipe 206 at the connection between adjacent air inlet pipes 206 can avoid the connection gap between the two air inlet pipes 206 causing gas leakage or pollution, improving durability and sealing performance.

[0036] Further, the sealing strip 215 is arranged at the connection between the sampling gas box 207 and the outer extension pipe 202, and the sealing strip 215 is arranged at the connection between the air inlet pipe 206 and the air inlet cover 209. By the arrangement of the sealing strip 215, the sealing strip 215 can prevent gas leakage at the connection between the sampling gas box 207 and the outer extension pipe 202, and maintain the integrity and purity of the sampling gas. The sealing strip 215 between the air inlet pipe 206 and the air inlet cover 209 can ensure the tight connection between the air inlet pipe 206 and the air inlet cover 209, preventing gas leakage before entering the device.

[0037] Further, the sealing strip 215 is provided with five groups, and the sizes of the five groups of sealing strips 215 are different. By the arrangement of the sealing strip 215, the sealing strip 215 can prevent gas leakage, ensure the purity and integrity of the sampling gas, avoid the entry of external pollutants into the device, protect the internal components, improve the stability and durability of the components of the device, ensure the reliability of the system operation, and effectively improve the air tightness and performance stability of the entire system.

[0038] Further, the mounting frame 213 is fixed on the air inlet cover 209 through the fourth threaded groove 211, and the other side of the mounting frame 213 is fitted in the inside of the protective cover 212, and through the arrangement of the mounting frame 213, the mounting frame 213 forms a complete filtering unit through cooperation with the anti-fouling net 214, ensures that the sampling gas uniformly passes through the filtering layer, and the design ensures the fixation of the gas path in the filtering process, improves the filtering efficiency and the purity of the gas sample, and simultaneously, the mounting frame 213 is designed as a modular structure, is fixed on the air inlet cover 209 through the threaded groove, is convenient to quickly disassemble when the anti-fouling net 214 needs to be cleaned or replaced, reduces the maintenance difficulty, and prolongs the service life of the device.

[0039] Further, the protective cover 212 and the mounting frame 213 constitute a mutual sliding structure, the protective cover 212 is fixed on the air inlet cover 209 through the external thread 210, through the arrangement of the protective cover 212, the protective cover 212 is installed outside the air inlet cover 209, is fixed on the air inlet cover 209 through the external thread 210, plays a protection role on the internal mounting frame 213 and the anti-fouling net 214, avoids that external physical damage or pollutants directly contact the filtering assembly, and especially in the equipment idle or transportation process, the protective cover 212 can effectively isolate the internal components from dust, humidity and other environmental factors.

[0040] The working principle of the utility model: one side of base 1 is provided with exhaust fan 201, exhaust fan 201 will produce negative pressure after starting, to drive air to enter the system through air inlet pipe 206, air inlet cover 209 is responsible for collecting the air in the surrounding environment, and the collected gas first passes through mounting frame 213 and anti-fouling net 214. Anti-fouling net 214 can effectively filter out large particles, and simultaneously, the inner wall of mounting frame 213 is provided with sealing strip 215, and is completely attached to the inner wall of air inlet cover 209, to ensure that there is no leakage in the whole process. The filtered gas then enters sampling gas box 207, and the gas box is used for temporarily storing the gas sample for subsequent detection and analysis.

[0041] It should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0042] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0043] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0044] The above embodiments are only for the purpose of illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A gas sampling probe for environmental monitoring, characterized in that, include: Base A combined mechanism is mounted on the base; the combined mechanism includes an exhaust fan, an extension pipe, a one-way valve, an air inlet pipe, a sampling gas box, and an air inlet hood assembly. The exhaust fan is mounted on the base, one end of the extension pipe is connected to the surface of the exhaust fan, a one-way valve is installed on the surface of the extension pipe, and the other end of the extension pipe is connected to the sampling gas box. One end of the air inlet pipe is connected to the surface of the exhaust fan, and the other end of the air inlet pipe is connected to the air inlet hood assembly. The air inlet hood assembly includes an air inlet hood, inside which is an anti-fouling mesh, and a protective cover is detachably mounted on the anti-fouling mesh.

2. The gas sampling probe for environmental monitoring according to claim 1, characterized in that, The surface of the exhaust fan is connected to one end of the air inlet pipe via a threaded connection. A first threaded groove is provided on one side of the exhaust fan, and the air inlet pipe is threadedly connected inside the first threaded groove.

3. The gas sampling probe for environmental monitoring according to claim 1, characterized in that, The other end of the extended tube is connected to a sampling gas box via a thread. The other end of the extended tube has a second threaded groove, and the sampling gas box is threadedly connected inside the second threaded groove.

4. The gas sampling probe for environmental monitoring according to claim 1, characterized in that, The other end of the air intake pipe is connected to an air intake shroud assembly via a thread. The other end of the air intake pipe has a third threaded groove, and the air intake shroud is connected to the inside of the third threaded groove. The surface of the air intake shroud has an external thread, and a fourth threaded groove is provided on one side of the air intake shroud. A protective cover is connected to the surface of the external thread, and a mounting frame is connected to the inside of the fourth threaded groove. A dirt-proof mesh is installed on the surface of the mounting frame, and a sealing strip is installed on the inner wall of the mounting frame.

5. The gas sampling probe for environmental monitoring according to claim 1, characterized in that, The air intake pipe is provided in two sets, and the lengths of the two sets of air intake pipes are different.

6. The gas sampling probe for environmental monitoring according to claim 1, characterized in that, The anti-fouling mesh is sized to match the inner wall of the air intake hood, and the anti-fouling mesh is aligned with the inner wall of the air intake hood.

7. The gas sampling probe for environmental monitoring according to claim 5, characterized in that, A sealing strip is provided at the connection between the base and the air inlet pipe, a sealing strip is provided at the connection between adjacent air inlets, a sealing strip is provided at the connection between the sampling gas box and the extension pipe, and a sealing strip is also provided at the connection between the air inlet pipe and the air inlet cover.

8. The gas sampling probe for environmental monitoring according to claim 4, characterized in that, The protective cover and the mounting frame form a sliding structure.

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