Air sampling detection device for tobacco leaf pest control
By designing an air sampling device with a sampling trough, a one-way valve and a telescopic sampling tube, the problem of real-time detection of air sampling in a closed environment is solved, and accurate sampling and data authenticity in a sealed environment are achieved.
Patent Information
- Application Number
- CN202422580831.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-24
AI Technical Summary
Existing air sampling devices cannot achieve real-time detection in a closed environment, and external factors affect the detection accuracy, making them unsuitable for air sampling in a sealed environment.
A device including a sampling trough, a one-way valve and a telescopic sampling tube was designed. The one-way valve was used to achieve real-time detection, and the gas environment temperature was simulated through the insulation layer and the injection port to reduce the influence of external temperature.
It realizes real-time detection and precise sampling of air in confined spaces, maximizes the authenticity and timeliness of data, and is suitable for air sampling in sealed environments.
Smart Images
Figure CN223377016U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of air detection and sampling, in particular to an air sampling and detection device for tobacco leaf pest control. Background Art
[0002] Air testing in a broad sense refers to the detection of the components of the air. Air testing in a narrow sense mainly focuses on indoor air testing from an application perspective. When testing ambient air, air testing sampling equipment is needed to sample and test the surrounding air to check for harmful substances in the air.
[0003] Air sampling and testing is a key step in tobacco leaf pest control. Because tobacco leaf stacks are sealed during physical atmosphere curing, conventional testing methods involve inserting a probe into a small hole in the stack.
[0004] Existing devices only provide sealed air sampling, but fail to perform real-time testing of the air sample while sampling. Furthermore, uncontrollable factors such as the sealing condition of the sealed bag after sampling and the ambient temperature can adversely affect the air inside the bag, hindering accurate testing. The sampling port lacks an extension device and is only suitable for open environments, not for sampling air within sealed environments.
[0005] To this end, the utility model provides an air sampling and detection device for tobacco leaf pest control. Utility Model Content
[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
[0007] The utility model solves the technical problem adopted by the utility model as follows: the utility model is an air sampling and detection device for tobacco leaf pest control, comprising a sampling slot; a movable handle movably connected in the sampling slot, a handle fixedly connected to the top of the movable handle, a retention slot connected at the bottom of the sampling slot, a first one-way valve connected on one side of the retention slot, a telescopic sampling tube connected on one side of the first one-way valve, a second one-way valve connected on the other side of the retention slot, and a sample bag connected at one end of the second one-way valve. During operation, the second one-way valve is first opened, the handle is pushed to discharge air from the sampling slot, the sample bag is connected to the output end of the second one-way valve, and then the telescopic sampling tube is stretched and extended to reach a designated sampling point. After opening the first one-way valve, the handle is pulled, which drives the movable handle upward, and gas at the sampling point passes through the first one-way valve along with the telescopic sampling tube and enters the sampling slot. Then, the handle is pushed to squeeze the gas in the sampling slot downward, and the gas is discharged along the second one-way valve and enters the sample bag. If the terminal of the second one-way valve is connected to a detection instrument, real-time detection can be achieved.
[0008] Preferably, an insulation layer is fixedly connected to the outside of the sampling slot, an injection port is provided on one side of the insulation layer, one end of the injection port is connected to an insulation cavity, and the insulation cavity is provided inside the insulation layer. During operation, the required insulation material is filled into the insulation cavity through the injection port to simulate the temperature of the sampled gas environment. The insulation cavity can be filled with hot water or refrigerant and other materials that simulate the temperature to simulate different temperature environments, thereby reducing the impact of external temperature factors on the air in the bag.
[0009] Preferably, two winding rods are provided at the bottom of the injection port, the winding rods are fixedly connected to the insulation layer, and one end of the winding rods is fixedly connected to a blocking block. When working, the telescopic sampling tube is telescopically set, and the stretched telescopic sampling tube will drag on the ground when moving. In order to facilitate taking and moving, the telescopic sampling tube can be wound around the winding rods, and the blocking block prevents the telescopic sampling tube from falling off the winding rods. This arrangement can facilitate the temporary storage of the telescopic sampling tube during the movement of sampling at different sampling points, and can also facilitate the placement of the telescopic sampling tube after subsequent use.
[0010] Preferably, an extension rod is fixedly provided on the other side of the insulation layer, and a clamp is fixedly connected to the bottom of the extension rod. During operation, the sample bag is connected to the second one-way valve port, and the clamp clamps the top of the sample bag to reduce the loosening of the sample bag and facilitate the rapid filling of the sample bag with the sampled gas.
[0011] Preferably, a plurality of prisms are fixedly connected to the outside of the handle, and the shape of the insulation layer is set to be semi-cylindrical. During operation, when the handle is pulled, in order to reduce the slipping phenomenon when the staff uses it, prisms are added to increase the friction, so as to facilitate more accurate control of the sampled gas volume.
[0012] Preferably, a sealing ring is provided on the outside of the movable handle, and the sealing ring is fixedly connected to the movable handle. When working, some air is inevitably trapped when the movable handle slides in the sampling groove. The sealing ring fills the gap between the movable handle and the sampling groove. At the same time, the sealing ring is set as a round tube to increase lubrication with the inner wall of the sampling groove and ensure the air tightness in the sampling groove.
[0013] The beneficial effects of the utility model are as follows:
[0014] 1. The air sampling and detection device for tobacco leaf pest control described in the utility model, by providing a sampling slot, a first one-way valve and a second one-way valve, can realize simultaneous detection during sampling, maximize the authenticity and timeliness of the data, and by providing a telescopic sampling tube, it can realize sampling of air at different positions in a confined space.
[0015] 2. The air sampling and detection device for tobacco leaf pest control described in the utility model fills the required insulation material into the insulation cavity through the injection port. The insulation cavity can be filled with materials simulating temperature such as hot water or refrigerant to simulate different temperature environments, thereby reducing the impact of external temperature factors on the air passing through the bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 It is a three-dimensional diagram in the present utility model;
[0018] Figure 2 It is a structural diagram of the retention tank in the utility model;
[0019] Figure 3 It is a structural diagram of the heat preservation cavity in the utility model;
[0020] Figure 4 It is a structural diagram of the winding rod in the utility model;
[0021] Figure 5 It is a structural diagram of the sealing ring in the utility model;
[0022] In the figure: 1. Sampling slot; 11. Movable handle; 12. Handle; 13. Retention slot; 14. First one-way valve; 15. Telescopic sampling tube; 16. Second one-way valve; 17. Sample bag; 2. Insulation layer; 21. Injection port; 22. Insulation cavity; 3. Winding rod; 31. Blocking block; 4. Extension rod; 41. Clip; 5. Prism; 6. Sealing ring. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0024] like Figures 1 to 5As shown, an air sampling and detection device for tobacco leaf pest control according to an embodiment of the present invention comprises a sampling slot 1; a movable handle 11 is movably connected in the sampling slot 1, a handle 12 is fixedly connected to the top of the movable handle 11, a retention slot 13 is connected to the bottom of the sampling slot 1, a first one-way valve 14 is connected to one side of the retention slot 13, a telescopic sampling tube 15 is connected to one side of the first one-way valve 14, a second one-way valve 16 is connected to one end of the second one-way valve 16, and a sample bag 17 is connected to one end of the second one-way valve 16. When working, the second one-way valve 16 is first opened, the handle 12 is pushed to discharge the air inside the sampling slot 1, the sample bag 17 is connected to the output end of the second one-way valve 16, and then the telescopic sampling tube 15 is connected to the output end of the second one-way valve 16. After stretching it to reach the designated sampling point and opening the first one-way valve 14, pull the handle 12, and the handle 12 drives the movable handle 11 to move upward. The gas at the sampling point passes through the first one-way valve 14 along the telescopic sampling tube 15 and enters the sampling tank 1. Then push the handle 12 to squeeze the gas in the sampling tank 1 downward, and the gas is discharged along the second one-way valve 16 and enters the sample bag 17. If the second one-way valve 16 terminal is connected to a detection instrument, real-time detection can be achieved. By setting the sampling tank 1, the first one-way valve 14 and the second one-way valve 16, detection can be performed simultaneously during sampling to maximize the authenticity and timeliness of the data. By setting the telescopic sampling tube 15, air sampling at different positions in a confined space can be achieved.
[0025] like Figures 1 to 4 As shown, the outside of the sampling slot 1 is fixedly connected to an insulation layer 2, and an injection port 21 is provided on one side of the insulation layer 2. One end of the injection port 21 is connected to an insulation cavity 22, and the insulation cavity 22 is provided inside the insulation layer 2. During operation, the required insulation material is filled into the insulation cavity 22 through the injection port 21 to simulate the temperature of the sampled gas environment. The insulation cavity 22 can be filled with hot water or refrigerant to simulate different temperature environments and reduce the impact of external temperature factors on the air in the bag.
[0026] like Figures 1 to 4 As shown, two winding rods 3 are provided at the bottom of the injection port 21, and the winding rods 3 are fixedly connected to the insulation layer 2. One end of the winding rod 3 is fixedly connected to a blocking block 31. When working, the telescopic sampling tube 15 is telescopically set. The stretched telescopic sampling tube 15 will drag on the ground when moving. In order to facilitate taking and moving, the telescopic sampling tube 15 can be wound around the winding rod 3, and the blocking block 31 prevents the telescopic sampling tube 15 from falling off the winding rod 3. This arrangement can facilitate the temporary storage of the telescopic sampling tube 15 during the movement of sampling at different sampling points, and can also facilitate the placement of the telescopic sampling tube 15 after subsequent use.
[0027] like Figures 1 to 4As shown, an extension rod 4 is fixedly provided on the other side of the insulation layer 2, and a clip 41 is fixedly connected to the bottom of the extension rod 4. When working, the sample bag 17 is connected to the port of the second one-way valve 16, and the clip 41 clamps the top of the sample bag 17 to reduce the loosening of the sample bag 17 and facilitate the rapid filling of the sample bag 17 by the sampled gas.
[0028] like Figures 1 to 4 As shown, a plurality of prisms 5 are fixedly connected to the outside of the handle 12, and the shape of the insulation layer 2 is set to be semi-cylindrical. During operation, when the handle 12 is pulled, in order to reduce the slipping phenomenon when the staff uses it, the prisms 5 are added to increase the friction force, so as to facilitate more accurate control of the sampled gas volume.
[0029] like Figure 5 As shown, a sealing ring 6 is provided on the outside of the movable handle 11, and the sealing ring 6 is fixedly connected to the movable handle 11. When working, the movable handle 11 slides in the sampling groove 1 and inevitably there is some air. The sealing ring 6 fills the gap between the movable handle 11 and the sampling groove 1. At the same time, the sealing ring 6 is set as a round tube to increase the lubrication with the inner wall of the sampling groove 1 and ensure the air tightness in the sampling groove 1.
[0030] Working principle: First open the second one-way valve 16, push the handle 12 to exhaust the air inside the sampling tank 1, connect the sample bag 17 to the output end of the second one-way valve 16, then stretch the telescopic sampling tube 15 to reach the designated sampling point, open the first one-way valve 14, pull the handle 12, the handle 12 drives the movable handle 11 to move upward, the gas at the sampling point passes through the first one-way valve 14 along the telescopic sampling tube 15 and enters the sampling tank 1, then push the handle 12 to squeeze the gas in the sampling tank 1 downward, and the gas is discharged along the second one-way valve 16 , enters the sample bag 17. If the second one-way valve 16 terminal is connected to the detection instrument, real-time detection can be achieved. By setting the sampling slot 1, the first one-way valve 14 and the second one-way valve 16, it is possible to perform detection simultaneously when sampling, maximizing the authenticity and timeliness of the data. By setting the telescopic sampling tube 15, it is possible to sample the air at different positions in the confined space. When working, the required insulation material is filled into the insulation cavity 22 through the injection port 21 to simulate the temperature of the sampled gas environment. The insulation cavity 22 can be filled with hot water or refrigerant. To simulate different temperature environments, reduce the impact of external temperature factors on the air in the bag, the telescopic sampling tube 15 is a telescopic setting, and the stretched telescopic sampling tube 15 will drag on the ground when moving. In order to facilitate taking and moving, the telescopic sampling tube 15 can be wound on the winding rod 3, and the blocking block 31 prevents the telescopic sampling tube 15 from falling off the winding rod 3. This setting can facilitate the temporary storage of the telescopic sampling tube 15 during the movement of sampling at different sampling points. After subsequent use, it can also facilitate the placement of the telescopic sampling tube 15. The sample bag 17 is connected to the second one-way valve 16 At the port, the clip 41 clamps the top of the sample bag 17 to reduce the loosening of the sample bag 17, and at the same time facilitates the rapid filling of the sample bag 17 with the sampled gas. When pulling the handle 12, in order to reduce the slipping phenomenon when the staff uses it, the prism 5 is added to increase the friction, so as to more accurately control the volume of the sampled gas. When the movable handle 11 slides in the sampling groove 1, some air is inevitable, and the sealing ring 6 fills the gap between the movable handle 11 and the sampling groove 1. At the same time, the sealing ring 6 is set as a round tube to increase the lubrication with the inner wall of the sampling groove 1 to ensure the air tightness in the sampling groove 1.
[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. An air sampling and detection device for tobacco leaf pest control, comprising a sampling slot (1); characterized in that: A movable handle (11) is movably connected in the sampling tank (1), and a handle (12) is fixedly connected to the top of the movable handle (11). The bottom of the sampling tank (1) is connected to a retention tank (13), one side of the retention tank (13) is connected to a first one-way valve (14), one side of the first one-way valve (14) is connected to a telescopic sampling tube (15), and the other side of the retention tank (13) is connected to a second one-way valve (16), and one end of the second one-way valve (16) is connected to a sample bag (17).
2. The air sampling and detection device for tobacco leaf pest control according to claim 1, characterized in that: The outside of the sampling tank (1) is fixedly connected to a heat-insulating layer (2), one side of the heat-insulating layer (2) is provided with an injection port (21), one end of the injection port (21) is connected to a heat-insulating cavity (22), and the heat-insulating cavity (22) is provided inside the heat-insulating layer (2).
3. The air sampling and detection device for tobacco leaf pest control according to claim 2, characterized in that: Two winding rods (3) are provided at the bottom of the injection port (21), the winding rods (3) are fixedly connected to the thermal insulation layer (2), and one end of the winding rods (3) is fixedly connected to a blocking block (31).
4. The air sampling and detection device for tobacco leaf pest control according to claim 3, characterized in that: An extension rod (4) is fixedly provided on the other side of the thermal insulation layer (2), and a clip (41) is fixedly connected to the bottom of the extension rod (4).
5. The air sampling and detection device for tobacco leaf pest control according to claim 4, characterized in that: A plurality of prisms (5) are fixedly connected to the outside of the handle (12), and the shape of the heat-insulating layer (2) is set to be semi-cylindrical.
6. The air sampling and detection device for tobacco leaf pest control according to claim 5, characterized in that: A sealing ring (6) is provided on the outside of the movable handle (11), and the sealing ring (6) is fixedly connected to the movable handle (11).