Sampling storage tank for air detection

Abstract

The utility model relates to the technical field of air detection, and discloses a sampling storage tank for air detection, which comprises a base, a mounting rack fixedly mounted at the upper part of the base, a mounting groove formed in the mounting rack, a sampling barrel mounted in the mounting groove, and an air cylinder fixedly mounted on the upper surface of the mounting rack, a limiting rod is fixedly mounted on the upper top wall of the sampling barrel, a spring is wound on the outer side of the limiting rod, a fixing piece is fixedly mounted at the lower end of the limiting rod, and a sealing piece is slidably mounted on the outer side of the limiting rod; a connecting plate is fixedly installed on the inner wall of the sealing bayonet, and a pressing rod is fixedly installed on the lower portion of the connecting plate. The sampling barrel can be quickly taken and is convenient to carry, more accurate air detection can be carried out in a laboratory, use of inspectors is facilitated, and the problems that a sampling barrel on an existing sampling device cannot be detached, and daily use is inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air detection, in particular to a sampling storage tank for air detection. Background Art

[0002] Gas sampling is the process of collecting samples of pollutants or polluted air in the atmosphere, which can seriously affect air quality and human health. Therefore, it is necessary to regularly sample the gas nearby.

[0003] In the existing published patent: A gas sampling device for exhaust gas detection, (publication number: CN220671055U) "comprises an exhaust pipe, the inner wall of the exhaust pipe is slidably connected to a piston, the bottom end of the piston is fixedly connected to a connecting rod, the bottom end of the connecting rod passes through the bottom wall of the exhaust pipe, the outer periphery of the exhaust pipe is fixedly connected to uniformly distributed fixed pipes, the outer periphery of the fixed pipe away from the exhaust pipe is provided with a connecting pipe, the end of the connecting pipe away from the fixed pipe is fixedly connected to the exhaust pipe, the exhaust pipe The piston is slidably connected to each of them. In the present invention, by pulling the connecting rod 2, the gas can be drawn into the exhaust pipe 1. Then, by pulling the connecting rod 1 on the exhaust pipe 2 to be stored, the gas collected in the exhaust pipe 1 can be drawn into the exhaust pipe 2 for storage. Thus, the gas at different locations can be extracted and stored through multiple exhaust pipes 2, which is more convenient to use. However, there are still certain problems in use. The sampling cylinder cannot be disassembled, which makes it difficult to operate conveniently during laboratory testing experiments, reducing work efficiency. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the deficiencies in the prior art, the utility model provides a sampling storage tank for air detection, which enables the sampling tube to be quickly taken out and is easy to carry, so that more accurate air detection can be performed in the laboratory, which is convenient for inspectors to use, and solves the problem that the sampling tube on the existing sampling device cannot be disassembled, making it inconvenient for daily use.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the following technical solution is provided: a sampling storage tank for air detection, comprising a base, a mounting frame fixedly installed on the upper part of the base, a mounting groove provided inside the mounting frame, a sampling tube installed inside the mounting groove, a cylinder fixedly installed on the upper surface of the mounting frame, a connecting air cylinder slidably installed on the upper surface of the mounting frame, a sealing bayonet fixedly connected to the lower end of the connecting air cylinder, a threaded port installed on the upper end of the sampling tube, a limiting rod fixedly installed on the upper top wall of the sampling tube, a spring wound around the outer side of the limiting rod, a fixing plate fixedly installed on the lower end of the limiting rod, a sealing plate slidably installed on the outer side of the limiting rod, a connecting plate fixedly installed on the inner wall of the sealing bayonet, and a pressure rod fixedly installed on the lower part of the connecting plate.

[0008] Preferably, the lower end of the cylinder is fixedly connected to the outer side of the sealing bayonet, the sealing bayonet can seal the threaded opening accordingly, and an air outlet valve is installed on the outer side of the sampling tube.

[0009] Preferably, the upper surface of the sealing sheet is in close contact with the bottom wall of the sampling cylinder, the upper end of the spring is connected to the bottom wall of the sampling cylinder, and the lower end of the spring is connected to the lower part of the fixing sheet.

[0010] Preferably, a fixing frame is fixedly installed on the upper part of the base, a screw rod is movably installed on the inner wall of the fixing frame, a moving block is threadedly installed on the outer side of the screw rod, a motor is fixedly installed on the lower part of the fixing frame, and the output end of the motor is fixedly connected to the lower end of the screw rod.

[0011] Preferably, a suction port is fixedly installed on the outer side of the moving block, a limiting slide is fixedly installed on the outer side of the moving block, and the limiting slide is slidably connected to the outer side of the fixing frame.

[0012] Preferably, a suction pump is fixedly installed on the upper part of the base, the suction port of the suction pump is connected to a first connecting pipe, the upper end of the first connecting pipe is connected to the interior of the suction port, and the outer side of the upper end of the first connecting pipe is fixedly connected to the surface of the limiting slide.

[0013] Preferably, the upper part of the connecting cylinder is connected to a third connecting pipe, an electromagnetic valve is installed on the outside of the third connecting pipe, the lower end of the third connecting pipe is connected to the second connecting pipe, and the front end of the second connecting pipe is connected to the outside of the suction pump.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides a sampling storage tank for air detection, which has the following beneficial effects:

[0016] 1. The sampling storage tank for air detection is equipped with an installation groove, a sampling tube, a cylinder, a connecting tube, a sealing bayonet, a threaded port, a limiting rod, a fixing plate, a spring, a sealing plate, a connecting plate, and a pressure rod, so that the sampling tube can be quickly taken out and is easy to carry. More accurate air detection can be performed in the laboratory, which is convenient for inspectors to use. It solves the problem that the sampling tube on the existing sampling device cannot be disassembled, which is inconvenient for daily use.

[0017] 2. The sampling storage tank for air detection is capable of extracting air at different heights through the arrangement of a screw rod, a moving block, a motor, a suction port, a limit slide, a suction pump, a first connecting pipe, a second connecting pipe, a third connecting pipe, and an electromagnetic valve. At the same time, the three sampling tubes can store air in different environments and at different heights, which is convenient for inspection and comparison. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the sampling tube of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the sealing sheet of the utility model and its related structures.

[0022] In the figure: 1. Base; 2. Mounting frame; 3. Mounting slot; 4. Sampling tube; 5. Cylinder; 6. Connecting cylinder; 7. Sealing bayonet; 8. Threaded port; 9. Limiting rod; 10. Fixing plate; 11. Spring; 12. Sealing plate; 13. Connecting plate; 14. Pressing rod; 15. Fixing frame; 16. Screw; 17. Moving block; 18. Motor; 19. Suction port; 20. Limiting slide; 21. Suction pump; 22. First connecting pipe; 23. Second connecting pipe; 24. Third connecting pipe; 25. Solenoid valve. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments, not all of the embodiments. Based on the embodiments, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection.

[0024] Example 1:

[0025] See also Figure 1-3A sampling storage tank for air detection includes a base 1, a mounting frame 2 is fixedly installed on the upper part of the base 1, a mounting groove 3 is opened inside the mounting frame 2, a sampling tube 4 is installed inside the mounting groove 3, a cylinder 5 is fixedly installed on the upper surface of the mounting frame 2, a connecting air cylinder 6 is slidably installed on the upper surface of the mounting frame 2, the lower end of the connecting air cylinder 6 is fixedly connected with a sealing bayonet 7, a threaded port 8 is installed on the upper end of the sampling tube 4, a limiting rod 9 is fixedly installed on the upper top wall of the sampling tube 4, a spring 11 is wound around the outside of the limiting rod 9, a fixing plate 10 is fixedly installed on the lower end of the limiting rod 9, a sealing plate 12 is slidably installed on the outside of the limiting rod 9, a connecting plate 13 is fixedly installed on the inner wall of the sealing bayonet 7, and a pressure rod 14 is fixedly installed on the lower part of the connecting plate 13.

[0026] Preferably, the lower end of the cylinder 5 is fixedly connected to the outer side of the sealing bayonet 7 , and the sealing bayonet 7 can seal the threaded opening 8 accordingly. An air outlet valve is installed on the outer side of the sampling tube 4 .

[0027] Specifically, there are three mounting slots in the mounting frame, which can be used to install three sampling tubes 4. Similarly, there are three connecting gas cylinders 6. The cylinder 5 can move downward with the connecting gas cylinder 6. As the sealing bayonet 7 also moves downward, the sealing bayonet 7 will cover the thread. At the same time, there is a sealing ring on the lower side of the sealing bayonet 7 to improve the sealing performance. At the same time, the pressure rod 14 in the sealing bayonet 7 will move downward, and the pressure rod 14 will press the sealing piece 12. The sealing piece 12 will move downward, the sampling tube 4 will be opened, and the gas can enter.

[0028] Preferably, the upper surface of the sealing sheet 12 is in close contact with the bottom wall of the sampling tube 4 , the upper end of the spring 11 is connected to the bottom wall of the sampling tube 4 , and the lower end of the spring 11 is connected to the lower part of the fixing sheet 10 .

[0029] Specifically, when the sealing piece 12 is under pressure, it will move downward along the limiting rod 9, and the sealing piece 12 will squeeze the spring 11. When the sealing piece 12 is not squeezed, the spring 11 rebounds and restores the sealing piece 12, tightly against the top wall of the sampling tube 4 to perform sealing.

[0030] Working principle: When sampling, the cylinder 5 is started and the connecting cylinder 6 moves downward, and the sealing bayonet 7 under the connecting cylinder 6 will be connected to the threaded port 8. At the same time, the pressure rod 14 in the sealing bayonet 7 will move downward, and the pressure rod 14 will press the sealing piece 12, and the sealing piece 12 will move downward, and the sealing piece 12 will squeeze the spring 11, so that the sampling tube 4 will be opened, and then the sucked air can enter the sampling tube 4 through the connecting cylinder 6. When the sampling is completed, when the sampling tube 4 needs to be taken out, the cylinder 5 is started and the sealing bayonet 7 is opened. When it moves upward, the pressure rod 14 also moves upward, and then the spring 11 will rebound and carry the sealing piece 12 to the top wall of the sampling tube 4 again to seal it to prevent gas leakage. Then the sampling tube 4 can be removed, and then the threaded cover can be installed on the threaded port 8 to seal it again. After arriving at the laboratory, the gas can be released through the air outlet valve and then tested, so that the sampling tube 4 can be quickly taken away and is easy to carry. More accurate air testing can be carried out in the laboratory, which is convenient for inspectors to use.

[0031] Example 2:

[0032] See also Figure 1-3 A fixing frame 15 is fixedly installed on the upper part of the base 1, a screw rod 16 is movably installed on the inner wall of the fixing frame 15, a moving block 17 is threadedly installed on the outer side of the screw rod 16, and a motor 18 is fixedly installed on the lower part of the fixing frame 15, and the output end of the motor 18 is fixedly connected to the lower end of the screw rod 16.

[0033] Specifically, the motor 18 can rotate the screw rod 16, and the moving block 17 can move up and down.

[0034] Preferably, a suction port 19 is fixedly installed on the outer side of the moving block 17 , and a limiting slide 20 is fixedly installed on the outer side of the moving block 17 . The limiting slide 20 is slidably connected to the outer side of the fixing frame 15 .

[0035] Specifically, the movement of the moving block 17 can move with the limiting slide 20 , and the limiting slide 20 will move along the outer side of the fixing frame 15 to limit the movement of the moving block 17 .

[0036] Preferably, a suction pump 21 is fixedly installed on the upper part of the base 1, and the air suction port of the suction pump 21 is connected to the first connecting pipe 22. The upper end of the first connecting pipe 22 is connected to the interior of the suction port 19, and the outer side of the upper end of the first connecting pipe 22 is fixedly connected to the surface of the limiting slide 20.

[0037] Specifically, when the suction pump 21 works, the first connecting pipe 22 is connected to the suction port 19 , and the suction port 19 generates suction to suck in external air. At the same time, the lower part of the first connecting pipe 22 is a retractable hose that can be retracted and retracted as the suction port 19 moves.

[0038] Preferably, the upper part of the connecting cylinder 6 is connected to a third connecting pipe 24, an electromagnetic valve 25 is installed on the outside of the third connecting pipe 24, the lower end of the third connecting pipe 24 is connected to the second connecting pipe 23, and the front end of the second connecting pipe 23 is connected to the outside of the suction pump 21.

[0039] Specifically, when sucking air at different heights and positions, it is sufficient to open one of the electromagnetic valves 25 of the three corresponding sampling cylinders 4 , and then the air can enter the sampling cylinder 4 through the second connecting pipe 23 and the second connecting pipe 23 .

[0040] Working principle: When sampling, the motor 18 rotates the screw rod 16, and the moving block 17 can move. The moving block 17 will move with the suction port 19, and at the same time, the limiting slide 20 moves along the fixed frame 15. The limiting slide 20 will move with the first connecting tube 22, and then open the electromagnetic valve 25 on the third connecting tube 24 of the corresponding sampling tube 4, and then the suction pump 21 works, and then the suction port 19 will suck air, and then enter the sampling tube 4 through the first connecting tube 22, the second connecting tube 23, and the third connecting tube 24, thereby achieving the ability to extract air at different heights. At the same time, the three sampling tubes 4 can store air in different environments and at different heights, which is convenient for inspection and comparison.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling storage tank for air detection, comprising a base (1), characterized in that: The upper part of the base (1) is fixedly mounted with a mounting frame (2), the interior of the mounting frame (2) is provided with a mounting groove (3), the interior of the mounting groove (3) is provided with a sampling tube (4), the upper surface of the mounting frame (2) is fixedly mounted with a cylinder (5), the upper surface of the mounting frame (2) is slidably mounted with a connecting cylinder (6), the lower end of the connecting cylinder (6) is fixedly connected with a sealing bayonet (7), the upper end of the sampling tube (4) is provided with a threaded opening (8), the upper top wall of the sampling tube (4) is fixedly mounted with a limiting rod (9), the outer side of the limiting rod (9) is wound with a spring (11), the lower end of the limiting rod (9) is fixedly mounted with a fixing plate (10), the outer side of the limiting rod (9) is slidably mounted with a sealing plate (12), the inner wall of the sealing bayonet (7) is fixedly mounted with a connecting plate (13), and the lower part of the connecting plate (13) is fixedly mounted with a pressure rod (14).

2. The air sampling storage tank for air detection according to claim 1, characterized in that: The lower end of the cylinder (5) is fixedly connected to the outside of the sealing bayonet (7), and the sealing bayonet (7) can seal the threaded opening (8) accordingly. An air outlet valve is installed on the outside of the sampling tube (4).

3. The air sampling storage tank for air detection according to claim 1, characterized in that: The upper surface of the sealing sheet (12) is in close contact with the bottom wall of the sampling cylinder (4), the upper end of the spring (11) is connected to the bottom wall of the sampling cylinder (4), and the lower end of the spring (11) is connected to the lower part of the fixing sheet (10).

4. The air sampling storage tank for air detection according to claim 1, characterized in that: A fixing frame (15) is fixedly mounted on the upper portion of the base (1), a screw rod (16) is movably mounted on the inner wall of the fixing frame (15), a moving block (17) is threadedly mounted on the outer side of the screw rod (16), and a motor (18) is fixedly mounted on the lower portion of the fixing frame (15), an output end of the motor (18) is fixedly connected to the lower end of the screw rod (16).

5. The air sampling storage tank for air detection according to claim 4, characterized in that: A suction port (19) is fixedly mounted on the outer side of the moving block (17), and a limiting slide (20) is fixedly mounted on the outer side of the moving block (17). The limiting slide (20) is slidably connected to the outer side of the fixing frame (15).

6. The air sampling storage tank for air detection according to claim 1, characterized in that: A suction pump (21) is fixedly mounted on the upper portion of the base (1); the suction port of the suction pump (21) is connected to a first connecting pipe (22); the upper end of the first connecting pipe (22) is communicated with the interior of the suction port (19); and the outer side of the upper end of the first connecting pipe (22) is fixedly connected to the surface of the limiting slide (20).

7. The air sampling storage tank for air detection according to claim 1, characterized in that: The upper portion of the connecting air cylinder (6) is connected to a third connecting pipe (24), an electromagnetic valve (25) is installed on the outer side of the third connecting pipe (24), the lower end of the third connecting pipe (24) is connected to a second connecting pipe (23), and the front end of the second connecting pipe (23) is connected to the outer side of the suction pump (21).

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