Air sampling device for environmental assessment

Abstract

The utility model relates to the technical field of air sampling, and provides an air sampling device for environmental assessment, which comprises a sample conveying main pipe, the top of one end of the sample conveying main pipe is fixedly connected with a sample conveying fan, one side of the sample conveying main pipe is fixedly connected with a plurality of carrying pipes, and each carrying pipe is provided with a sample storage component. An assembling frame is fixedly connected to the top end of the sample feeding main pipe, a sample supply assembly is arranged on the inner side of the assembling frame, a mobile power source is fixedly connected to the top end of the assembling frame, the mobile power source is used for providing power needed by the sample feeding draught fan and the sample supply assembly, and the sample storage assembly comprises a sample storage bottle, a connecting pipe, a positioning disc, a displacement sliding rod and a plugging piece; the sample storage bottle is connected to one end of the carrying pipe through a bolt, and one end of the sample storage bottle is fixedly connected with a connecting pipe. By means of the technical scheme, the problems that in the prior art, after single sampling is finished, a sample needs to be taken down firstly, then next sampling operation can be conducted, the overall sampling efficiency is greatly affected, and the overall sampling is not convenient enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air sampling, and in particular to an air sampling device for environmental assessment. Background Art

[0002] Environmental quality assessment is a comprehensive scientific method whose main purpose is to comprehensively reveal the status of environmental quality and its changing trends, identify key targets for pollution control, and provide a basis for formulating comprehensive environmental prevention and control programs, urban master plans, and environmental plans.

[0003] Among them, before evaluating the quality of the environment, it is necessary to first use air sampling equipment to collect air samples in the specified environment. However, after a single sampling is completed, the air sampling equipment in traditional technology needs to remove the sample first before the next sampling operation can be carried out, which greatly affects the overall sampling efficiency and makes the overall operation inconvenient.

[0004] Based on this, we propose an air sampling device for environmental impact assessment. Utility Model Content

[0005] The utility model proposes an air sampling device for environmental impact assessment, which solves the problem in the related art that after a single sampling is completed, the sample needs to be removed first before the next sampling operation can be carried out, which greatly affects the overall sampling efficiency and makes the overall operation inconvenient.

[0006] The technical solution of the utility model is as follows: An air sampling device for environmental impact assessment, comprising a sample delivery main pipe, the top of one end of the sample delivery main pipe is fixedly connected to a sample delivery fan, one side of the sample delivery main pipe is fixedly connected to a plurality of carrying tubes, each of the carrying tubes is installed with a sample storage component, the top of the sample delivery main pipe is fixedly connected to an assembly rack, the inner side of the assembly rack is provided with a sample supply component, the top of the assembly rack is fixedly connected to a mobile power supply, and the mobile power supply is used to provide the power required by the sample delivery fan and the sample supply component.

[0007] Preferably, the sample storage assembly includes a sample storage bottle, a connecting tube, a positioning plate, a displacement slide and a sealing piece. The sample storage bottle is connected to one end of the carrying tube by a bolt. One end of the sample storage bottle is fixedly connected to the connecting tube, and the connecting tube also extends to the inside of the carrying tube. The inside of the connecting tube is fixedly connected to the positioning plate. The middle part of the positioning plate is slidably connected to the displacement slide. The end of the displacement slide located inside the sample bottle is fixedly connected to the sealing piece. A coil spring is fixedly connected between the sealing piece and the positioning plate. The end of the displacement slide located inside the sample delivery main tube is fixedly connected to a pressure ball.

[0008] Preferably, the sample supply assembly includes a transmission shaft, a threaded rod, a transmission motor and a transmission spur gear. One end of the assembly frame is rotatably connected to the transmission shaft, the middle part of the transmission shaft is threadedly connected to the threaded rod, the top of the assembly frame is fixedly connected to the transmission motor, the output end of the transmission motor is fixedly connected to the reduction spur gear, the outer side of the transmission shaft is fixedly connected to the reduction spur gear, the reduction spur gear is meshed with the transmission spur gear, one end of the threaded rod is fixedly connected to the linkage frame, the other end of the sample delivery main pipe is slidably connected to the adjusting shaft, the end of the adjusting shaft located inside the sample delivery main pipe is fixedly connected to a displacement plate, and the side of the displacement plate away from the adjusting shaft is fixedly connected to an extrusion plate for extruding the pressurized ball.

[0009] Preferably, a filter is fixedly connected to the top of one end of the sample delivery main pipe, and the sample delivery fan is located below the filter.

[0010] Preferably, a hanging plate is fixedly connected to the top of the mobile power supply, and both ends of the hanging plate are provided with connecting piece avoidance grooves.

[0011] Preferably, both sides of the carrying tube are fixedly connected with extension ears, one end of the sample storage bottle is fixedly connected with an assembly ear, and the extension ear and the assembly ear are connected by bolts.

[0012] Preferably, one end of the threaded rod located inside the assembly frame is fixedly connected to a limit plate, a linear slide groove is provided at the top end inside the assembly frame, and the limit plate is also slidably connected inside the linear slide groove.

[0013] Preferably, a sealing ring is fixedly connected to the outer side of the displacement plate, and a transition fit is formed between the sealing ring and the inner wall of the sample delivery main pipe.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] 1. In the present invention, through the structural coordination of the sample storage component and the sample supply component, it is possible to collect air at different heights without removing the sample, greatly improving the overall air sampling efficiency and making the whole process more convenient.

[0016] 2. In the present invention, through the structural coordination of the sample storage assembly, after the extrusion plate is separated from the pressure ball, the sample storage bottle can be sealed by the sealing piece to prevent the sample from leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

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

[0019] Figure 2This is a schematic diagram of the structure for removing the carrying tube and the sample storage assembly of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the sample storage component of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the sample supply component of the utility model;

[0022] Figure 5 For this utility model Figure 4 A partial enlarged view of point A in the middle.

[0023] In the figure: 1. Sample delivery main pipe; 2. Sample delivery blower; 3. Carrying pipe; 4. Sample storage assembly; 5. Assembly rack; 6. Sample supply assembly; 7. Mobile power supply; 8. Sample storage bottle; 9. Connecting pipe; 10. Positioning plate; 11. Displacement slide rod; 12. Sealing plate; 13. Coil spring; 14. Pressure ball; 15. Transmission shaft; 16. Threaded rod; 17. Transmission motor; 18. Transmission spur gear; 19. Reduction spur gear; 20. Linkage frame; 21. Adjustment shaft; 22. Displacement plate; 23. Extrusion plate. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figures 1 to 5 As shown, this embodiment provides an air sampling device for environmental impact assessment, including a sample delivery main pipe 1, a sample delivery blower 2 fixedly connected to the top of one end of the sample delivery main pipe 1, a plurality of carrying tubes 3 fixedly connected to one side of the sample delivery main pipe 1, each carrying tube 3 is installed with a sample storage component 4, an assembly rack 5 fixedly connected to the top of the sample delivery main pipe 1, a sample supply component 6 is provided on the inner side of the assembly rack 5, and a mobile power supply 7 fixedly connected to the top of the assembly rack 5, which is used to provide power required by the sample delivery blower 2 and the sample supply component 6;

[0027] In detail, a filter is fixedly connected to the top of one end of the sample delivery pipe 1, and the sample delivery fan 2 is located below the filter. The filter can block the sheet-like objects in the airflow entering the sample delivery pipe 1, thereby preventing the sheet-like objects from entering the sample delivery pipe 1.

[0028] In detail, the top of the mobile power supply 7 is fixedly connected to a lifting plate, and both ends of the lifting plate are provided with a connection avoidance groove. By using the setting of the lifting plate, it can be conveniently connected to an external drone to lift the sample delivery pipe 1 to the specified sample collection height through the drone;

[0029] The sample storage assembly 4 includes a sample storage bottle 8, a connecting tube 9, a positioning disk 10, a displacement slide 11 and a blocking piece 12. The sample storage bottle 8 is connected to one end of the carrying tube 3 by a bolt. One end of the sample storage bottle 8 is fixedly connected to the connecting tube 9, and the connecting tube 9 also extends to the inside of the carrying tube 3. The interior of the connecting tube 9 is fixedly connected to the positioning disk 10. The middle part of the positioning disk 10 is slidably connected to the displacement slide 11. The end of the displacement slide 11 located inside the sample storage bottle 8 is fixedly connected to the blocking piece 12. A coil spring 13 is fixedly connected between the blocking piece 12 and the positioning disk 10. The end of the displacement slide 11 located inside the sample delivery main tube 1 is fixedly connected to a pressure ball 14.

[0030] Furthermore, both sides of the carrying tube 3 are fixedly connected with extension ears, and one end of the sample bottle 8 is fixedly connected with an assembly ear, and the extension ear and the assembly ear are connected by bolts. By utilizing the connection between the extension ear and the assembly ear, the bolts can achieve stable assembly between the sample bottle 8 and the carrying tube 3, and facilitate subsequent separation of the sample bottle 8 from the carrying tube 3;

[0031] Example 2

[0032] like Figures 1 to 5 As shown, based on the same concept as the above embodiment 1, this embodiment further proposes a sample supply component 6;

[0033] In this embodiment, the sample supply assembly 6 includes a transmission shaft 15, a threaded rod 16, a transmission motor 17 and a transmission spur gear 18. One end of the assembly frame 5 is rotatably connected to the transmission shaft 15, and the middle part of the transmission shaft 15 is threadedly connected to the threaded rod 16. The top of the assembly frame 5 is fixedly connected to the transmission motor 17, and the output end of the transmission motor 17 is fixedly connected to the reduction spur gear 19. The outer side of the transmission shaft 15 is fixedly connected to the reduction spur gear 19, and the reduction spur gear 19 is meshed with the transmission spur gear 18. One end of the threaded rod 16 is fixedly connected to the linkage frame 20, and the other end of the sample delivery main pipe 1 is slidably connected to the adjusting shaft 21. The end of the adjusting shaft 21 located inside the sample delivery main pipe 1 is fixedly connected to a displacement plate 22, and the side of the displacement plate 22 away from the adjusting shaft 21 is fixedly connected to an extrusion plate 23 for extruding the pressurized ball 14;

[0034] Here, one end of the threaded rod 16 located inside the assembly frame 5 is fixedly connected to a limit plate, and a linear slide groove is provided at the top end inside the assembly frame 5, and the limit plate is also slidably connected inside the linear slide groove. The structural cooperation between the limit plate and the limit slide groove can effectively guide the displacement of the threaded rod 16, thereby preventing the threaded rod 16 from rotating with the transmission shaft 15.

[0035] Among them, a sealing ring is fixedly connected to the outer side of the displacement plate 22, and there is a transition fit between the sealing ring and the inner wall of the sample delivery main pipe 1. The setting of the sealing ring can seal the connection gap between the sample delivery main pipe 1 and the displacement plate 22, thereby ensuring the sealing of the connection between the displacement plate 22 and the sample delivery main pipe 1.

[0036] A specific application of the above two embodiments is that the hoisting plate is first assembled with the external drone, and then personnel operate the drone to raise the sample delivery main pipe 1 to the required sampling height, and start the transmission motor 17 to drive the transmission spur gear 18 to rotate. The transmission spur gear 18 and the reduction spur gear 19 are connected to each other, which can drive the transmission shaft 15 to rotate. Under the connection between the transmission shaft 15 and the threaded rod 16, the threaded rod 16 follows the rotation of the transmission shaft 15 to drive the linkage frame 20 to slide. Combined with the connection between the linkage frame 20 and the adjustment shaft 21, the position of the displacement plate 22 inside the sample delivery main pipe 1 is changed.

[0037] When the displacement piece 22 passes the pressure ball 14 at the carrying tube 3, it can squeeze the pressure ball 14, prompting the displacement slide 11 to drive the blocking piece 12 to move under the support of the positioning plate 10, thereby releasing the blockage of the sample bottle 8; when the displacement piece 22 is away from the carrying tube 3, the squeezing plate 23 will squeeze the pressure ball 14, so that the sample bottle 8 is in an open state, and then the sample delivery blower 2 is started to inject air into the sample delivery main pipe 1, and the air is transmitted into the opened sample bottle 8 through the sample delivery main pipe 1, so as to realize sample collection; after the sample is collected, the transmission motor 17 is started to prompt the squeezing plate 23 to separate from the pressure ball 14. As the displacement slide 11 slides, the blocking piece 12 can be used to pull the coil spring 13, and then when the squeezing plate 23 separates from the pressure ball 14, the coil spring 13 can be used to pull the blocking piece 12 to seal the sample bottle 8;

[0038] When the drone rises to the next height, the transmission motor 17 is started to drive the extrusion plate 23 to squeeze the pressure ball 14 on the next carrying tube 3, so that samples at different heights can be collected without returning. The sample bottle 8 can be removed from the carrying tube 3 and the sample can be tested.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air sampling device for environmental assessment, characterized in that: The invention comprises a sample delivery main pipe (1), wherein the top of one end of the sample delivery main pipe (1) is fixedly connected to a sample delivery blower (2), a side of the sample delivery main pipe (1) is fixedly connected to a plurality of carrying pipes (3), each of the carrying pipes (3) is installed with a sample storage component (4), the top of the sample delivery main pipe (1) is fixedly connected to an assembly frame (5), the inner side of the assembly frame (5) is provided with a sample supply component (6), the top of the assembly frame (5) is fixedly connected to a mobile power supply (7), and the mobile power supply (7) is used to provide power required by the sample delivery blower (2) and the sample supply component (6).

2. The air sampling device for environmental assessment according to claim 1, characterized in that: The sample storage assembly (4) includes a sample storage bottle (8), a connecting tube (9), a positioning plate (10), a displacement slide rod (11) and a blocking piece (12). The sample storage bottle (8) is connected to one end of the carrying tube (3) by a bolt. One end of the sample storage bottle (8) is fixedly connected to the connecting tube (9), and the connecting tube (9) also extends into the interior of the carrying tube (3). The interior of the connecting tube (9) is fixedly connected to the positioning plate (10). The middle part of the positioning plate (10) is slidably connected to the displacement slide rod (11). The end of the displacement slide rod (11) located inside the sample storage bottle (8) is fixedly connected to the blocking piece (12). A coil spring (13) is fixedly connected between the blocking piece (12) and the positioning plate (10). The end of the displacement slide rod (11) located inside the sample delivery main tube (1) is fixedly connected to a pressure ball (14).

3. The air sampling device for environmental assessment according to claim 1, characterized in that: The sample supply assembly (6) includes a transmission shaft (15), a threaded rod (16), a transmission motor (17) and a transmission spur gear (18). One end of the assembly frame (5) is rotatably connected to the transmission shaft (15). The middle part of the transmission shaft (15) is threadedly connected to the threaded rod (16). The top end of the assembly frame (5) is fixedly connected to the transmission motor (17). The output end of the transmission motor (17) is fixedly connected to the reduction spur gear (19). The outer side of the transmission shaft (15) is fixedly connected to the transmission motor (17). A reduction spur gear (19) is meshedly connected to the transmission spur gear (18); one end of the threaded rod (16) is fixedly connected to a linkage frame (20); the other end of the sample delivery main pipe (1) is slidably connected to an adjustment shaft (21); one end of the adjustment shaft (21) located inside the sample delivery main pipe (1) is fixedly connected to a displacement plate (22); and a side of the displacement plate (22) away from the adjustment shaft (21) is fixedly connected to an extrusion plate (23) for extruding the pressurized ball (14).

4. The air sampling device for environmental assessment according to claim 1, characterized in that: A filter is fixedly connected to the top of one end of the sample delivery main pipe (1), and the sample delivery fan (2) is located below the filter.

5. The air sampling device for environmental assessment according to claim 1, characterized in that: The top of the mobile power supply (7) is fixedly connected to a hanging plate, and both ends of the hanging plate are provided with connecting piece avoidance grooves.

6. The air sampling device for environmental assessment according to claim 2, characterized in that: Both sides of the carrying tube (3) are fixedly connected with extension ears, one end of the sample storage bottle (8) is fixedly connected with an assembly ear, and the extension ear and the assembly ear are connected by bolts.

7. The air sampling device for environmental assessment according to claim 3, characterized in that: One end of the threaded rod (16) located inside the assembly frame (5) is fixedly connected to a limit plate, a linear slide groove is provided at the top end inside the assembly frame (5), and the limit plate is also slidably connected inside the linear slide groove.

8. The air sampling device for environmental assessment according to claim 3, characterized in that: A sealing ring is fixedly connected to the outer side of the displacement plate (22), and a transition fit is formed between the sealing ring and the inner wall of the sample delivery main pipe (1).

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