Air sampler for exhaust gas detection

Abstract

The utility model discloses an air sampler for waste gas detection relates to environmental monitoring technical field. Including sampling device, the outer wall of sampling device is equipped with clamping component, the clamping component includes the shaft sleeve, the outer wall fixedly connected with the mounting block of shaft sleeve, the inner wall slidingly connected with the clamping plate of mounting block, the middle clamping of clamping plate has the collecting pipe, the inside fixedly connected with second spring of collecting pipe, the outer wall fixedly connected with moving plate of second spring, through the shaft sleeve that clamping component inside setting can realize driving collecting pipe and rotate, again through pulling clamping plate that clamping component inside setting, make clamping plate slide, thereby make collecting pipe and rest the valve plate that valve pipe inside setting and make its inside shift, reach the sample that collecting pipe inside collection is stored, thereby reached can to sampling place carry out multiple point position continuous sampling.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, specifically to an air sampler for detecting exhaust gas. Background Technology

[0002] With the acceleration of industrialization, the composition of exhaust gases emitted by various industries varies greatly. Even within the same enterprise, the composition and concentration of exhaust gases can fluctuate significantly at different stages of production. For example, the electronics manufacturing process generates various volatile organic compounds and exhaust gases containing heavy metals; the production of new energy batteries may emit exhaust gases containing fluorine and acidic gases, etc.

[0003] Faced with such complex and diverse exhaust emissions, traditional single-sample air samplers have revealed many limitations. A single-sample air sampler can only collect one sample at a time, which is extremely inefficient when it is necessary to monitor multiple locations or multiple pollutants at the same time. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an air sampler for exhaust gas detection, which solves the problem that traditional single-group air samplers can only collect one sample at a time.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes an installation tube, the outer wall of which is fitted with a clamping assembly, and the inner wall of which is connected to a pipe assembly. The clamping assembly includes a bushing, an mounting block is fixedly connected to the outer wall of the bushing, two clamping plates are slidably connected to the inner wall of the mounting block, a collection tube is clamped between the two clamping plates, a second spring is fixedly connected inside the collection tube, and a moving plate is fixedly connected to the end of the second spring away from the collection tube.

[0006] Preferably, the outer wall of the mounting block is surrounded by four clamping plates with the bushing as the central axis. The outer wall of the clamping plate is fixedly connected to a first telescopic rod. The end of the first telescopic rod away from the clamping plate is fixedly connected to the inner wall of the mounting block. The outer wall of the moving plate is in contact with the inner wall of the collecting pipe. The collecting pipe can be clamped by the clamping assembly. At the same time, the collecting pipe can be connected to the valve pipe by sliding the clamping assembly on the outer wall of the mounting block.

[0007] Preferably, a valve is fixedly connected to one end of the collecting pipe, and a perforated sleeve is fixedly connected to the other end of the collecting pipe. A first spring is sleeved on the outer wall of the first telescopic rod. After the valve pipe is connected to the collecting pipe, it will squeeze the first spring. When the first spring resets through its own elasticity, it can drive the collecting pipe to reset synchronously.

[0008] Preferably, the pipeline assembly includes a valve pipe, with valve plates installed inside both ends of the valve pipe. A second telescopic rod is fixedly connected to the outer wall of the valve plate. The end of the second telescopic rod away from the valve plate is fixed to the valve pipe via a mounting plate, and the mounting plate is fixed to the inner wall of the valve pipe. The end of the valve pipe near the collecting pipe is slidably connected to the end of the collecting pipe near the valve pipe via a clamping plate. The valve pipe can be sealed by the valve plate through the slidable connection between the end of the valve pipe and the end of the collecting pipe. When the two sets of valve plates are opened alternately, the gas collected inside the valve pipe can be transported to the inside of the collecting pipe.

[0009] Preferably, a rubber head is slidably connected inside the mounting tube, and a movable rod is fixedly connected to the outer wall of the rubber head. The end of the movable rod away from the rubber head extends out of the mounting tube. A needle tube is installed through the end of the mounting tube near the protective cover, and a protective cover is fitted over the needle tube. The protective cover is fixedly installed to the end of the mounting tube near the needle tube. By pulling the movable rod, the rubber head can slide inside the mounting tube. When the rubber head slides, pressure is generated inside the mounting tube, thereby drawing out external air.

[0010] Preferably, the outer wall of the needle tube is fixedly connected to a locking structure, the locking structure including a pull rod, a spring sleeved on the outer wall of the pull rod near the needle tube end, and the pull rod is inserted into a groove opened in the outer wall of the needle tube. A one-way valve is provided at the end of the needle tube away from the locking structure. The needle tube can be connected to the installation tube through the locking structure. At the same time, by closing the one-way valve, the gas collected inside the installation tube can be preserved, and the leakage can be prevented when the sample is transported into the collection tube.

[0011] This invention provides an air sampler for exhaust gas detection. It has the following beneficial effects: (i) The air sampler for exhaust gas detection can drive the collection tube to rotate by the bushing set inside the clamping assembly. Then, by pulling the clamping plate set inside the clamping assembly, the clamping plate is slid, so that the collection tube abuts against the valve plate set inside the valve tube and moves inward, so as to store the sample collected inside the collection tube. After the collection tube is collected, the collection tube is reset and the clamping assembly is rotated again, so as to achieve continuous sampling at multiple sampling points.

[0012] (II) This type of air sampler for exhaust gas detection uses a movable rod and a set of valve plates installed inside the pipe assembly to cooperate with each other. When the installation tube pulls the movable rod to extract gas samples, the valve plate near the installation tube is subjected to suction and will seal. Then, by pushing the movable rod, the rubber head moves and the one-way valve closes. The valve plate near the installation tube is pushed and will separate from the inner wall of the valve tube. Then, the collection tube abuts against the valve plate installed inside the valve tube, causing it to move inward, thereby transporting the extracted gas sample into the collection tube. When the collection tube separates from the valve plate, the valve plate resets. The reset valve plate fits against the valve tube, thereby achieving the effect of automatically sealing the valve tube, preventing external gas from entering the interior of the installation tube, and preventing the gas inside the installation tube from mixing with the external gas. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the cross-section of the installation pipe of this utility model; Figure 3 This is a schematic diagram of the clamping assembly of this utility model; Figure 4 This is a partial cross-sectional structural schematic diagram of the clamping assembly of this utility model; Figure 5 This is a schematic diagram of the cross-section of the valve tube of this utility model; Figure 6 This is a schematic diagram of the cross-section of the collection tube of this utility model; Figure 7 This is a schematic diagram of the cross-section of the needle tube of this utility model.

[0014] In the diagram: 1. Mounting tube; 12. Movable rod; 13. Rubber head; 14. Needle tube; 15. Protective cover; 16. One-way valve; 17. Locking structure; 2. Clamping assembly; 21. Bushing; 22. Clamping plate; 23. First spring; 24. Collection tube; 25. First telescopic rod; 26. Second spring; 27. Moving plate; 28. Mounting block; 3. Pipe assembly; 31. Valve tube; 32. Second telescopic rod; 33. Valve plate. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-7The present invention provides a technical solution: including an installation pipe 1, wherein a clamping component 2 is sleeved on the outer wall of the installation pipe 1, and a pipe component 3 is connected through the inner wall of the installation pipe 1; The clamping assembly 2 includes a bushing 21, with an installation block 28 fixedly connected to the outer wall of the bushing 21. Two clamping plates 22 are slidably connected to the inner wall of the installation block 28. A collection tube 24 is clamped between the two clamping plates 22. A second spring 26 is fixedly connected inside the collection tube 24. A moving plate 27 is fixedly connected to the end of the second spring 26 away from the collection tube 24.

[0017] The outer wall of the mounting block 28 is surrounded by four clamping plates 22 with the bushing 21 as the central axis. The outer wall of the clamping plate 22 is fixedly connected to a first telescopic rod 25. The end of the first telescopic rod 25 away from the clamping plate 22 is fixedly connected to the inner wall of the mounting block 28. The outer wall of the moving plate 27 is in contact with the inner wall of the collecting pipe 24. One end of the collecting pipe 24 is fixedly connected to a valve, and the other end of the collecting pipe 24 is fixedly connected to a perforated sleeve. The outer wall of the first telescopic rod 25 is fitted with a first spring 23.

[0018] The pipe assembly 3 includes a valve pipe 31, and valve plates 33 are provided inside both ends of the valve pipe 31. A second telescopic rod 32 is fixedly connected to the outer wall of the valve plate 33. The end of the second telescopic rod 32 away from the valve plate 33 is fixed to the valve pipe 31 by a mounting plate, and the mounting plate is fixed to the inner wall of the valve pipe 31. The end of the valve pipe 31 near the collection pipe 24 and the end of the collection pipe 24 near the valve pipe 31 are slidably connected by a clamping plate 22.

[0019] The installation tube 1 is slidably connected to a rubber head 13. A movable rod 12 is fixedly connected to the outer wall of the rubber head 13. The end of the movable rod 12 away from the rubber head 13 extends out of the installation tube 1. A needle tube 14 is installed through the end of the installation tube 1 near the protective cover 15. The protective cover 15 is sleeved on the outside of the needle tube 14. The protective cover 15 is fixedly installed to the end of the installation tube 1 near the needle tube 14. A locking structure 17 is fixedly connected to the outer wall of the needle tube 14. A one-way valve 16 is provided at the end of the needle tube 14 away from the locking structure 17.

[0020] In use, the operator moves the device to the collection point by removing the protective cover 15. By rotating the one-way valve 16 inside the installation tube 1, the needle tube 14 can be unblocked. Then, the movable rod 12 is pulled to move outward from the installation tube 1, which can drive the rubber head 13 to move synchronously. During the movement of the rubber head 13, a negative pressure is generated inside the installation tube 1, which can draw in the gas near the collection point. After the gas is drawn in, rotating the one-way valve 16 can close the needle tube 14, forming a closed space inside the installation tube 1. By pushing the movable rod 12, the internal space of the installation tube 1 is reduced. As the space is reduced, the excess gas is transported out through the gas valve tube 31. By connecting the collection tube 24 to one end of the valve tube 31 in advance, the collected gas sample can be transported into the inside of the collection tube 24 for storage.

[0021] When sampling is required at different points in different gas collection locations, the device is aligned with the desired collection location. Rotating the bushing 21 inside the clamping assembly 2 causes the clamping plate 22 to rotate synchronously. The rotating clamping plate 22, via the mounting block 28, causes the collection tube 24 to rotate synchronously, aligning the collection tube 24 with the valve tube 31. Moving the clamping plate 22 horizontally allows it to move, thus causing the collection tube 24 to move horizontally synchronously. During this movement, the clamping plate 22 engages with the first spring 23. The compression of the first telescopic rod 25 causes the first spring 23 and the first telescopic rod 25 to contract. When the collecting tube 24 abuts against the valve plate 33 inside the valve tube 31, the valve plate 33 can be separated from the inner wall of the valve tube 31, allowing the air sample drawn inside the valve tube 31 to enter the bottle mouth of the collecting tube 24 through the hole. This applies pressure to the moving plate 27, causing the moving plate 27 to move into the collecting tube 24 under pressure, thus separating the moving plate 27 from the collecting tube 24. This allows the collected gas sample to be transported into the collecting tube 24.

[0022] When the first spring 23 loses its thrust, it resets itself through its own elasticity. The reset first spring 23 can drive the first telescopic rod 25 to reset. The reset first spring 23 and the first telescopic rod 25 can drive the clamping plate 22 to reset synchronously. Then, the reset clamping plate 22 can drive the collection tube 24 to reset. Since the pressure is lost, the moving plate 27 resets itself through the elasticity of the second spring 26, causing the collection tube 24 to close. This process is repeated, thereby enabling continuous sampling at multiple sampling points.

[0023] When the gas sample collected after compression enters the valve tube 31 inside the pipeline assembly 3, it is compressed by the valve plate 33 near the mounting tube 11. Due to the thrust, the valve plate 33 moves into the interior of the valve tube 31. The moving valve plate 33 separates from the valve tube 31, allowing the compressed gas to enter the interior of the valve tube 31. At the same time, one end of the collecting tube 24 pushes into the interior of the valve tube 31, pushing the valve plate 33 near the collecting tube 24 into the interior of the valve tube 31. This separates the valve plate 33 from the valve tube 31, allowing the gas entering the valve tube 31 to be transported into the interior of the collecting tube 24.

[0024] When the pressure inside the installation tube 1 decreases, the valve plate 33 can be reset by the elasticity of the tension spring sleeved outside the second telescopic rod 32. The reset second telescopic rod 32 can drive the valve plate 33 to reset, causing the end of the valve tube 31 close to the installation tube 1 to close. When the collecting tube 24 separates from the valve plate 33, the valve plate 33 resets. The reset valve plate 33 fits against the valve tube 31, thereby achieving the effect of automatically sealing the valve tube 31, preventing external gas from entering the interior of the installation tube 1, and preventing the gas inside the installation tube 1 from mixing with the external gas. When the needle tube 14 is damaged, the needle tube 14 can be separated from the installation tube 1 by pulling the lever on the locking structure 17, thereby achieving the effect of quickly disassembling the needle tube 14 and reducing maintenance costs.

[0025] 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.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air sampler for exhaust gas detection, comprising an installation tube (1), characterized in that: The outer wall of the installation pipe (1) is fitted with a clamping assembly (2), and the inner wall of the installation pipe (1) is connected to a pipe assembly (3). The clamping assembly (2) includes a bushing (21), the outer wall of which is fixedly connected to an installation block (28), and the inner wall of the installation block (28) is slidably connected to two clamping plates (22). A collection tube (24) is clamped between the two clamping plates (22), and a second spring (26) is fixedly connected inside the collection tube (24). A moving plate (27) is fixedly connected to one end of the second spring (26) away from the collection tube (24).

2. The air sampler for exhaust gas detection according to claim 1, characterized in that: The outer wall of the mounting block (28) is surrounded by four clamping plates (22) with the bushing (21) as the central axis. The outer wall of the clamping plate (22) is fixedly connected to a first telescopic rod (25). The end of the first telescopic rod (25) away from the clamping plate (22) is fixedly connected to the inner wall of the mounting block (28). The outer wall of the moving plate (27) is in contact with the inner wall of the collecting pipe (24).

3. An air sampler for exhaust gas detection according to claim 2, characterized in that: A valve is fixedly connected to one end of the collecting pipe (24), and a hole sleeve is fixedly connected to the other end of the collecting pipe (24). A first spring (23) is sleeved on the outer wall of the first telescopic rod (25).

4. An air sampler for exhaust gas detection according to claim 1, characterized in that: The pipe assembly (3) includes a valve pipe (31), and valve plates (33) are provided inside both ends of the valve pipe (31). A second telescopic rod (32) is fixedly connected to the outer wall of the valve plate (33). The end of the second telescopic rod (32) away from the valve plate (33) is fixed to the valve pipe (31) by a mounting plate, and the mounting plate is fixed to the inner wall of the valve pipe (31). The end of the valve pipe (31) near the collection pipe (24) and the end of the collection pipe (24) near the valve pipe (31) are slidably connected by a clamping plate (22).

5. An air sampler for exhaust gas detection according to claim 1, characterized in that: The installation tube (1) is slidably connected to a rubber head (13). A movable rod (12) is fixedly connected to the outer wall of the rubber head (13). The end of the movable rod (12) away from the rubber head (13) extends out of the installation tube (1). A needle tube (14) is installed through the end of the installation tube (1) near the protective cover (15). The needle tube (14) is covered with a protective cover (15). The protective cover (15) is fixedly installed to the end of the installation tube (1) near the needle tube (14).

6. An air sampler for exhaust gas detection according to claim 5, characterized in that: The outer wall of the needle tube (14) is fixedly connected to a locking structure (17), and a one-way valve (16) is provided at the end of the needle tube (14) away from the locking structure (17).

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