Air detection device capable of quantitatively sampling

Abstract

The utility model discloses an air detection device capable of quantitatively sampling, which belongs to the technical field of air detection equipment and comprises a sampling inflator, one side of the sampling inflator is communicated with a first one-way valve, the other end of the first one-way valve is communicated with an air inlet pipe, and two sides of the outer wall of the sampling inflator are respectively communicated with a second one-way valve and a connecting pipe; the quantitative sampling mechanism is arranged, a second handle drives a connecting plate to move, so that a moving rod and a connecting rod are driven to move together, the connecting rod drives a piston to move through a fixing plate, external air can be sampled, and meanwhile, the moving rod drives a pointer to move through a moving block; according to the gas detector, the pointer points to the scale, so that external air can be quantitatively extracted through the scale pointed by the pointer, the gas detector can quantitatively analyze the air, the detection result can be more accurate, air of different volumes can be quantitatively extracted through the scale line, and the applicability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of air detection equipment, and in particular relates to an air detection device capable of quantitative sampling. Background Technology

[0002] An air quality monitoring device is an instrument that can detect and analyze pollutants and harmful substances in the air. It mainly measures the concentration of pollutants through its sensors and calculates the air quality index. When the concentration exceeds the standard, it will issue an alarm. The working principle of the air quality monitoring device is based on a variety of technologies, including constant potential electrolytic sensors, light scattering technology, and semiconductor gas sensing principles. These technologies are used to detect pollutants such as formaldehyde, PM2.5, and TVOC in the air. After the gas is drawn into the instrument through the sensor, the signal is amplified and noise interference is removed, and the measurement data is finally displayed in real time.

[0003] Existing air quality monitoring devices directly detect the gaseous components in the air, but cannot extract a certain amount of gas for quantitative analysis, resulting in inaccurate test results. In addition, existing air quality monitoring devices usually lack altitude adjustment functions, making it impossible to detect air at different altitudes, thus limiting the comprehensiveness of monitoring results and affecting the ability to accurately assess air quality. Utility Model Content

[0004] The purpose of this invention is to solve the problems that existing air detection devices cannot extract a certain amount of gas for quantitative analysis and cannot detect air at different altitudes, and therefore proposes an air detection device that can quantitatively sample air.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quantitative air sampling device includes a sampling cylinder, one side of which is connected to a first one-way valve, and the other end of which is connected to an air inlet pipe. The outer walls of the sampling cylinder are respectively connected to a second one-way valve and a connecting pipe. The inner wall of the connecting pipe is threaded and threaded to a gas detection pipe. A gas detector is installed at the other end of the gas detection pipe. The outer wall of the sampling cylinder is respectively provided with a quantitative sampling mechanism and a height adjustment mechanism.

[0007] The quantitative sampling mechanism includes a fixed block, one side of which is connected to the outer wall of the sampling cylinder. A scale line is provided on one side of the fixed block, and a sliding groove is provided on one side of the fixed block. A movable block is slidably connected to the inner wall of the sliding groove. One side of the movable block extends outside the sliding groove, and a pointer is connected to one side of the movable block. One side of the pointer is in contact with one side of the fixed block. A movable rod is connected to one side of the movable block, and the other end of the movable rod extends outside the sliding groove and is connected to a connecting plate. A connecting rod is connected to one side of the connecting plate, and one end of the connecting rod extends into the sampling cylinder and is connected to the fixed plate. A piston is connected to the other side of the fixed plate, and the outer wall of the piston is in contact with the inner wall of the sampling cylinder.

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

[0009] One side of the connecting plate is attached to one side of the sampling cylinder and one side of the fixing block, and the other side of the connecting plate is connected to a second handle.

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

[0011] The height adjustment mechanism includes a slide rail, one side of which is connected to the outer wall of the sampling cylinder, and a slider is slidably connected to the inner wall of the slide rail. A first handle is connected to one side of the slider.

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

[0013] Multiple limiting grooves are provided on both sides of the inner wall of the slide rail. Two sliding grooves are provided on one side of the slider. A through groove is provided on one side of the sliding groove. A movable plate is attached to the inner wall of the sliding groove. A limiting block is connected to one side of the movable plate. The outer wall of the limiting block is slidably connected to the inner wall of the through groove. One side of the limiting block extends to the outside of the through groove. The outer wall of the limiting block is attached to the inner wall of the limiting groove.

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

[0015] The movable plate has two through holes, and a sliding rod is slidably connected to the inner wall of the through hole. Both ends of the sliding rod are connected to the inner wall of the slide groove. A spring is sleeved on the sliding rod, and both ends of the spring are connected to one side of the movable plate and the inner wall of the slide groove, respectively.

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

[0017] One side of the movable plate extends outside the slide groove, and a pressing block is connected to one side of the movable plate. One side of the pressing block is respectively attached to one side of the slider and one side of the slide rail.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting up a quantitative sampling mechanism, pulling the second handle drives the connecting plate downward, thereby driving the moving rod and the connecting rod downward together. The connecting rod drives the piston downward through the fixed plate, thereby enabling the sampling of the outside air. At the same time, the moving rod can drive the pointer to move through the moving block, so that the pointer can point to the scale line on the fixed block, thereby enabling the quantitative extraction of the outside air. This allows the gas detector to perform quantitative analysis of the air, thus making the detection results more accurate. The scale line can also be used to quantitatively extract different volumes of air, thereby improving the applicability of the device.

[0020] 2. In this utility model, by setting a height adjustment mechanism, the moving plate and the limiting block are moved by pressing the pressing block, so that the limiting block is separated from the limiting groove, thereby removing the restriction on the position of the slider and allowing the slider to move within the slide rail. This allows the height of the sampling air cylinder to be adjusted, enabling the sampling air cylinder to sample air at different heights, and thus enabling the gas detector to detect air at different heights, resulting in more comprehensive monitoring results. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the fixing block structure of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A;

[0024] Figure 4 This is a schematic cross-sectional view of the quantitative sampling mechanism of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged structural diagram of section B;

[0026] Figure 6 This is an exploded view of the height adjustment mechanism of this utility model;

[0027] Figure 7 This utility model Figure 6 Enlarged structural diagram of section C;

[0028] Figure 8 This is a schematic diagram of the cross-sectional structure of the slider of this utility model;

[0029] Figure 9 This utility model Figure 8 Enlarged structural diagram of section D.

[0030] Legend: 1. First one-way valve; 2. Second one-way valve; 3. Sampling cylinder; 4. Height adjustment mechanism; 401. Slide rail; 402. Slider; 403. First handle; 404. Moving plate; 405. Pressing block; 406. Slide groove; 407. Through groove; 408. Limiting block; 409. Spring; 410. Slide rod; 411. Limiting groove; 412. Through hole; 5. Quantitative sampling mechanism; 501. Fixed block; 502. Moving block; 503. Pointer; 504. Slide groove; 505. Piston; 506. Fixed plate; 507. Connecting rod; 508. Connecting plate; 509. Second handle; 510. Moving rod; 6. Gas detector; 7. Connecting pipe; 8. Gas detection pipe; 9. Inlet pipe. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-9 This utility model provides a technical solution: a quantitative air sampling device, including a sampling cylinder 3, a first one-way valve 1 connected to one side of the sampling cylinder 3, an air inlet pipe 9 connected to the other end of the first one-way valve 1, a second one-way valve 2 and a connecting pipe 7 respectively connected to both sides of the outer wall of the sampling cylinder 3, a gas detection pipe 8 threadedly connected to the inner wall of the connecting pipe 7, a gas detector 6 installed at the other end of the gas detection pipe 8, and a quantitative sampling mechanism 5 and a height adjustment mechanism 4 respectively provided on the outer wall of the sampling cylinder 3;

[0033] The quantitative sampling mechanism 5 includes a fixed block 501, one side of which is connected to the outer wall of the sampling cylinder 3. A scale line is provided on one side of the fixed block 501. A sliding groove 504 is formed on one side of the fixed block 501. A moving block 502 is slidably connected to the inner wall of the sliding groove 504. One side of the moving block 502 extends outside the sliding groove 504. A pointer 503 is connected to one side of the moving block 502, and one side of the pointer 503 is in contact with one side of the fixed block 501. A moving rod 510 is connected to one side of the moving block 502. The other end of the moving rod 510 extends to the outside of the sliding groove 504 and is connected to a connecting plate 508. A connecting rod 507 is connected to one side of the connecting plate 508. One end of the connecting rod 507 extends into the sampling cylinder 3 and is connected to a fixing plate 506. A piston 505 is connected to the other side of the fixing plate 506. The outer wall of the piston 505 is in contact with the inner wall of the sampling cylinder 3. One side of the connecting plate 508 is in contact with one side of the sampling cylinder 3 and one side of the fixing block 501. A second handle 509 is connected to the other side of the connecting plate 508.

[0034] The specific implementation method is as follows: By pulling the second handle 509, the connecting plate 508 is moved downward. The downward movement of the connecting plate 508 causes the moving rod 510 and the connecting rod 507 to move downward together. When the connecting rod 507 moves downward, it can cause the fixing plate 506 to move downward. The downward movement of the fixing plate 506 causes the piston 505 to move downward in the sampling air cylinder 3, thereby drawing outside air into the air inlet pipe 9 and entering the sampling air cylinder 3 through the first one-way valve 1. At the same time, the moving rod 510 can cause the moving block 502 to move downward in the sliding groove 504. The movement of the moving block 502 causes the pointer 503 to move, so that the pointer 50... The sampling cylinder 3 can point to the scale line on the fixed block 501, thereby enabling quantitative extraction of outside air. This allows the gas detector 6 to perform quantitative analysis of the air, resulting in more accurate test results. The scale line also allows for quantitative extraction of different volumes of air, thus improving the applicability of the device. The air in the sampling cylinder 3 can enter the gas detector 6 through the gas detection tube 8, allowing the gas detector 6 to perform detection. After the detection is completed, the second handle 509 is pushed upward to drive the piston 505 back to its original position, thereby allowing the air in the sampling cylinder 3 to be discharged into the outside environment through the second one-way valve 2.

[0035] The height adjustment mechanism 4 includes a slide rail 401. One side of the slide rail 401 is connected to the outer wall of the sampling cylinder 3. A slider 402 is slidably connected to the inner wall of the slide rail 401. A first handle 403 is connected to one side of the slider 402. Multiple limiting grooves 411 are provided on both sides of the inner wall of the slide rail 401. Two sliding grooves 406 are provided on one side of the slider 402. A through groove 407 is provided on one side of the sliding groove 406. A moving plate 404 is attached to the inner wall of the sliding groove 406. A limiting block 408 is connected to one side of the moving plate 404. The outer wall of the limiting block 408 is slidably connected to the inner wall of the through groove 407. One side of the limiting block 408 extends... Outside the through groove 407, the outer wall of the limiting block 408 is in contact with the inner wall of the limiting groove 411. Two through holes 412 are opened in the moving plate 404. A slide rod 410 is slidably connected to the inner wall of the through hole 412. Both ends of the slide rod 410 are connected to the inner wall of the slide groove 406. A spring 409 is sleeved on the slide rod 410. Both ends of the spring 409 are connected to one side of the moving plate 404 and the inner wall of the slide groove 406, respectively. One side of the moving plate 404 extends to the outside of the slide groove 406. A pressing block 405 is connected to one side of the moving plate 404. One side of the pressing block 405 is in contact with one side of the slider 402 and one side of the slide rail 401, respectively.

[0036] The specific implementation method is as follows: By pressing the pressing block 405, the moving plate 404 is moved. The movement of the moving plate 404 compresses the spring 409, causing the spring 409 to generate elastic force. At the same time, the moving plate 404 can drive the limiting block 408 to move, causing the limiting block 408 to separate from the limiting groove 411. This releases the restriction on the position of the slider 402, allowing the slider 402 to move within the slide rail 401. This allows the height of the sampling cylinder 3 to be adjusted, enabling the sampling cylinder 3 to sample air at different heights, thereby allowing the gas... The detector 6 can detect air at different heights, thus making the monitoring results more comprehensive. After adjusting the height, release the pressing block 405. At this time, the spring 409 can release the elastic force and drive the moving plate 404 and the limiting block 408 to return to their original positions, so that the limiting block 408 re-enters the limiting groove 411, thereby limiting the position of the slider 402. The sliding rod 410 and the through hole 412 are set so that the moving plate 404 can be limited by the sliding rod 410 when it moves, so that it will not deviate and can move more stably.

[0037] Working principle: In use, pulling the second handle 509 moves the connecting plate 508 downward. The downward movement of the connecting plate 508 moves the moving rod 510 and the connecting rod 507 downward together. The downward movement of the connecting rod 507 can move the piston 505 downward in the sampling air cylinder 3 through the fixed plate 506, thereby drawing outside air into the sampling air cylinder 3. At the same time, the moving rod 510 can move the pointer 503 through the moving block 502, thereby determining the volume of air drawn into the sampling air cylinder 3, and thus quantitatively extracting outside air. When it is necessary to adjust the height of the sampling air cylinder 3, pressing the pressing block 405 moves the moving plate 404 and the limiting block 408, causing the limiting block 408 to separate from the limiting groove 411, thereby releasing the restriction on the position of the slider 402, allowing the slider 402 to move within the slide rail 401, thereby adjusting the height of the sampling air cylinder 3.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quantitative air sampling device, comprising a sampling air cylinder (3), characterized in that: The sampling cylinder (3) is connected to a first one-way valve (1) on one side, and to an air inlet pipe (9) on the other side. The outer walls of the sampling cylinder (3) are connected to a second one-way valve (2) and a connecting pipe (7) respectively. The inner wall of the connecting pipe (7) is threaded and threaded to a gas detection pipe (8). A gas detector (6) is installed at the other end of the gas detection pipe (8). The outer wall of the sampling cylinder (3) is provided with a quantitative sampling mechanism (5) and a height adjustment mechanism (4). The quantitative sampling mechanism (5) includes a fixed block (501), one side of which is connected to the outer wall of the sampling cylinder (3). A scale line is provided on one side of the fixed block (501), and a sliding groove (504) is provided on one side of the fixed block (501). A moving block (502) is slidably connected to the inner wall of the sliding groove (504). One side of the moving block (502) extends outside the sliding groove (504), and a pointer (503) is connected to one side of the moving block (502). One side of the pointer (503) is connected to the fixed block. (501) One side is attached, and the moving block (502) is connected to a moving rod (510) on one side. The other end of the moving rod (510) extends to the outside of the sliding groove (504) and is connected to a connecting plate (508). The connecting plate (508) is connected to a connecting rod (507) on one side. One end of the connecting rod (507) extends into the sampling cylinder (3) and is connected to a fixing plate (506). The other side of the fixing plate (506) is connected to a piston (505). The outer wall of the piston (505) is attached to the inner wall of the sampling cylinder (3).

2. The air detection device capable of quantitative sampling according to claim 1, characterized in that: One side of the connecting plate (508) is attached to one side of the sampling cylinder (3) and one side of the fixing block (501), and the other side of the connecting plate (508) is connected to a second handle (509).

3. The air detection device capable of quantitative sampling according to claim 1, characterized in that: The height adjustment mechanism (4) includes a slide rail (401), one side of which is connected to the outer wall of the sampling cylinder (3), and a slider (402) is slidably connected to the inner wall of the slide rail (401). A first handle (403) is connected to one side of the slider (402).

4. The air detection device capable of quantitative sampling according to claim 3, characterized in that: Multiple limiting grooves (411) are provided on both sides of the inner wall of the slide rail (401). Two sliding grooves (406) are provided on one side of the slider (402). A through groove (407) is provided on one side of the sliding groove (406). A movable plate (404) is attached to the inner wall of the sliding groove (406). A limiting block (408) is connected to one side of the movable plate (404). The outer wall of the limiting block (408) is slidably connected to the inner wall of the through groove (407). One side of the limiting block (408) extends to the outside of the through groove (407). The outer wall of the limiting block (408) is attached to the inner wall of the limiting groove (411).

5. The air detection device capable of quantitative sampling according to claim 4, characterized in that: The movable plate (404) has two through holes (412). A slide rod (410) is slidably connected to the inner wall of the through hole (412). Both ends of the slide rod (410) are connected to the inner wall of the slide groove (406). A spring (409) is provided on the outer sleeve of the slide rod (410). Both ends of the spring (409) are connected to one side of the movable plate (404) and the inner wall of the slide groove (406), respectively.

6. The air detection device capable of quantitative sampling according to claim 5, characterized in that: The movable plate (404) extends to the outside of the slide groove (406) on one side, and a pressing block (405) is connected to one side of the movable plate (404). The pressing block (405) is respectively attached to one side of the slider (402) and one side of the slide rail (401).

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