Air sampling device for environment detection

Abstract

The utility model discloses an air sampling device for environment detection, which relates to the technical field of environment detection appliances and comprises an outer shell, a cylinder is rotatably mounted on the inner side of the outer shell, and a driving motor for driving the cylinder to rotate is mounted at the center of the bottom end of the outer shell. Through cooperative arrangement of the cylinder, the driving motor, the sampling pipe, the self-opening and self-closing assembly and the ejection block, when the driving motor drives the cylinder to rotate until the sampling pipe corresponds to the air duct, the ejection rod drives the first movable block and the second movable block to move downwards under the action of the ejection block, and at the moment, the sampling pipe is in an open state; airflow sucked by the fan can pass through the sampling pipe, then when the cylinder is driven by the driving motor to rotate until the sampling pipe and the air duct are staggered, the ejector rod drives the first movable block and the second movable block to move upwards and reset under the action of the extension spring, and at the moment, part of air in the area is sealed in the sampling pipe to serve as a sample to be stored. And air sampling is more convenient and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental detection appliance technical field, especially relates to air sampling device for environmental detection. BACKGROUND

[0002] When the air of a region needs to be detected, the air sampling device needs to be used to sample the air of the region, and then the air is transported to the laboratory for detection.

[0003] Regarding the air sampling device for environmental detection, through retrieval, for example, a kind of air sampling detection device provided in patent publication No.CN116734129B, including device body and first electric telescopic rod, first electric telescopic rod telescopic end installs base, fixed mechanism is arranged in base interior, device body top is provided with air outlet and air inlet, first electric telescopic rod telescopic end outer wall is equipped with sliding block, sliding block outer wall is equipped with telescopic support, telescopic support outer wall is equipped with protection mechanism, telescopic support outer wall is equipped with clamping mechanism.In need to use device body to sample and detect the air in the region where environment is complex and collection is more difficult, the length of air inlet pipe can be changed in the position in the region by the telescopic telescopic support, so that device body is conveniently sampled and detected to the air in different positions of the region.

[0004] Based on the above retrieval, combined with prior art, it is found that the air sampling device for environmental detection similar to the above disclosed in prior art generally directly detects after sampling, and air samples are not conveniently classified and stored.Therefore, the air sampling device for environmental detection is proposed to improve the above problems. UTILITY MODEL CONTENT

[0005] The purpose of the present application is to provide air sampling device for environmental detection to solve the problems proposed in the above background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: air sampling device for environmental detection, including shell body, the inside of shell body is rotatably installed with cylinder, the bottom center of shell body is installed with drive motor for driving cylinder rotation;

[0007] There are a plurality of damping holes in vertical direction on the annular array of cylinder, and the inside of damping hole is inserted with sampling tube, and the inside of sampling tube is installed with self-opening and closing assembly;

[0008] One air duct corresponding to any one damping hole is arranged on the shell body, the upper side of air duct is provided with air inlet pipe fixed with shell body, the inside of air inlet pipe is installed with fan, so that external air flows from top to bottom through air duct, the top of air duct is provided with connecting shaft connected with shell body, and top block for opening self-opening and closing assembly is installed on connecting shaft;

[0009] The upper end of the outer shell body is provided with a plurality of taking and placing openings corresponding to the damping holes one by one.

[0010] As a further supplement to the present scheme, the self-opening and closing assembly comprises a top rod and, from top to bottom, a first fixed block, a first movable block, a second fixed block, a second movable block, the top rod and a tension spring;

[0011] The first fixed block and the first movable block are located at the top of the sampling tube, and the second fixed block and the second movable block are located at the bottom of the sampling tube.

[0012] The upper end of the top rod is slidably penetrated through the first fixed block and is adapted to the top block, and the lower end of the top rod is slidably penetrated through the second fixed block and is fixed to the second movable block.

[0013] The first fixed block and the first movable block are located at the top of the sampling tube, and the second fixed block and the second movable block are located at the bottom of the sampling tube.

[0014] When the tension spring is not subjected to external force, the first movable block is in close contact with the first fixed block, and the second movable block is in close contact with the second fixed block.

[0015] As a further supplement to the present scheme, the upper end of the sampling tube is provided with a notch for the top block to pass through.

[0016] As a further supplement to the present scheme, the top block is disc-shaped, and the top block is coaxially rotatably installed on the outside of the connecting shaft.

[0017] As a further supplement to the present scheme, the top of the taking and placing opening and the damping hole is provided with an expansion groove.

[0018] As a further supplement to the present scheme, the top end of the air inlet pipe is provided with a protective net, and the top end of the protective net is provided with a blocking column.

[0019] In summary, the technical effects and advantages of the present application are:

[0020] The utility model discloses a cylindrical body, drive motor, sampling pipe, the cooperation and set of self -opening and closing subassembly and top block, when drive motor drives the rotation of cylindrical body to sampling pipe and air duct phase corresponding, the first movable block and second movable block are removed under the action of top block with the top bar, sampling pipe is in the opening state at this moment, the airflow of inhaled via the fan can pass through sampling pipe, after utilizing drive motor drive cylindrical body rotation to sampling pipe and air duct phase staggered, under the action of tension spring, the first movable block and second movable block are reset with the top bar and move up, the part air of this area is sealed in sampling pipe as sample and is stored at this time, make air sampling more convenient and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 It is the overall three-dimensional structure schematic diagram in this embodiment;

[0023] Figure 2 It is the cut structure schematic diagram of the shell body in this embodiment;

[0024] Figure 3 It is the cut structure schematic diagram of the cylindrical body in this embodiment;

[0025] Figure 4 It is the cut structure schematic diagram of the sampling pipe in this embodiment.

[0026] In the drawing: 1, shell body;101, air duct;102, taking and placing opening;2, cylindrical body;201, damping hole;202, expansion slot;3, drive motor;4, sampling pipe;401, notch;5, air inlet pipe;6, fan;7, connecting shaft;8, top block;9, first fixed block;10, first movable block;11, second fixed block;12, second movable block;13, top rod;14, tension spring;15, protective net;16, blocking column. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] Embodiment: Reference Figures 1-4 The environment detection air sampling device shown in the figure comprises an outer shell 1, a cylinder 2 is rotatably installed on the inner side of the outer shell 1, a driving motor 3 for driving the cylinder 2 to rotate is installed at the center of the bottom end of the outer shell 1, correspondingly, a storage battery can be additionally provided outside the outer shell 1 to supply power to the driving motor 3 and the fan 6 below, and the driving motor 3 and the fan 6 below are both electrically connected to an external controller by using conventional technical means.

[0029] Among them, the cylinder 2 has a plurality of damping holes 201 in the vertical direction in the annular array, and a sampling tube 4 is inserted into the inner side of the damping hole 201, and a self-opening and closing assembly is installed on the inner side of the sampling tube 4. Specifically, the self-opening and closing assembly comprises a top rod 13 and a first fixed block 9, a first movable block 10, a second fixed block 11, a second movable block 12, the top rod 13 and a tension spring 14 arranged in order from top to bottom, the first fixed block 9 and the first movable block 10 are located at the top of the sampling tube 4, the second fixed block 11 and the second movable block 12 are located at the bottom of the sampling tube 4, the first fixed block 9 and the second fixed block 11 are fixed with the inner wall of the sampling tube 4, the first movable block 10 and the second movable block 12 are vertically slidably attached to the inner wall of the sampling tube 4, the upper end of the top rod 13 slides through the first fixed block 9, the lower end of the top rod 13 slides through the second fixed block 11 and is fixed with the second movable block 12, the first movable block 10 is fixedly sleeved on the outside of the top rod 13 and is fixed with the first fixed block 9 through the tension spring 14, the first fixed block 9 and the first movable block 10 are provided with air holes staggered with each other, and the second fixed block 11 and the second movable block 12 are also provided with air holes staggered with each other.

[0030] When the tension spring 14 is not subjected to external force, the first movable block 10 is attached to the first fixed block 9, and the second movable block 12 is attached to the second fixed block 11, at this time the inside of the sampling tube 4 is in a sealed state.

[0031] An air duct 101 corresponding to any one of the damping holes 201 is arranged on the outer shell 1, an air inlet pipe 5 fixed with the outer shell 1 is arranged on the upper side of the air duct 101, a fan 6 is installed on the inner side of the air inlet pipe 5, so that the external air flows from top to bottom through the air duct 101, a connecting shaft 7 connected with the outer shell 1 is arranged at the top of the air duct 101, a top block 8 matched with the top rod 13 is installed on the connecting shaft 7, and a notch 401 for the top block 8 to pass through is arranged at the upper end of the sampling tube 4.

[0032] When the driving motor 3 drives the cylinder 2 to rotate to the sampling pipe 4 corresponding to the air duct 101, the top rod 13 moves downward under the action of the top block 8 with the first movable block 10 and the second movable block 12, at this time, the sampling pipe 4 is in an open state, and the airflow sucked through the fan 6 can pass through the sampling pipe 4, and then the driving motor 3 drives the cylinder 2 to rotate to the sampling pipe 4 being staggered with the air duct 101, under the action of the tension spring 14, the top rod 13 moves upward with the first movable block 10 and the second movable block 12 to reset, at this time, part of the air in the region is sealed in the sampling pipe 4 as a sample.

[0033] The top block 8 is a disc, and the top block 8 is coaxially rotatably installed on the outside of the connecting shaft 7, the circumferential arc surface of the top block 8 is in contact with the top end of the top rod 13, and the rotating top block 8 can reduce the friction between the top rod 13.

[0034] In addition, in order to facilitate the sampling pipe 4 to be taken out, the upper end of the outer shell 1 is provided with a plurality of taking and placing openings 102 corresponding to the damping holes 201 one by one, and the top positions of the taking and placing openings 102 and the damping holes 201 are provided with expansion grooves 202.

[0035] In order to prevent foreign matters from falling into the inside of the sampling pipe 4, the top end of the air inlet pipe 5 is provided with a protective net 15, and the top end of the protective net 15 is provided with a blocking column 16, so that the pipe opening of the air inlet pipe 5 is not covered by external objects during sampling.

[0036] The working principle of the utility model is: in actual use, the sampling device can be installed on a unmanned aerial vehicle, a vehicle body or other movable objects by using a conventional mounting structure, so that the air in different regions can be sampled.

[0037] When the driving motor 3 drives the cylinder 2 to rotate to the sampling pipe 4 corresponding to the air duct 101, the top rod 13 moves downward under the action of the top block 8 with the first movable block 10 and the second movable block 12, at this time, the sampling pipe 4 is in an open state, and the airflow sucked through the fan 6 can pass through the sampling pipe 4, and then the driving motor 3 drives the cylinder 2 to rotate to the sampling pipe 4 being staggered with the air duct 101, under the action of the tension spring 14, the top rod 13 moves upward with the first movable block 10 and the second movable block 12 to reset, at this time, part of the air in the region is sealed in the sampling pipe 4 as a sample, and the sampling pipe 4 can be taken out outward through the expansion groove 202 at the taking and placing opening 102.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. Air sampling device for environmental monitoring, comprising an outer casing (1), characterized in that, The inner side of the outer shell (1) is rotatably installed with a cylinder (2), and the bottom end center of the outer shell (1) is installed with a driving motor (3) for driving the cylinder (2) to rotate; A plurality of damping holes (201) in the vertical direction are arranged in an annular array on the cylinder (2), and the inner side of the damping hole (201) is inserted with a sampling tube (4), and the inner side of the sampling tube (4) is installed with a self-opening and closing assembly; An air duct (101) corresponding to any one of the damping holes (201) is arranged on the outer shell (1), the upper side of the air duct (101) is provided with an air inlet pipe (5) fixed with the outer shell (1), the inner side of the air inlet pipe (5) is installed with a fan (6), so that the external air flows from top to bottom through the air duct (101), and the top of the air duct (101) is provided with a connecting shaft (7) connected with the outer shell (1), and the connecting shaft (7) is installed with a top block (8) for opening the self-opening and closing assembly; The upper end of the outer shell (1) is provided with a plurality of taking and placing openings (102) corresponding to the damping holes (201).

2. The air sampling device for environmental detection according to claim 1, characterized in that: The self-opening and closing assembly comprises a top rod (13) and a first fixed block (9), a first movable block (10), a second fixed block (11), a second movable block (12), the top rod (13) and a tension spring (14) arranged in sequence from top to bottom; The first fixed block (9) and the first movable block (10) are located at the top of the sampling tube (4), the second fixed block (11) and the second movable block (12) are located at the bottom of the sampling tube (4), the first fixed block (9) and the second fixed block (11) are fixed with the inner wall of the sampling tube (4), and the first movable block (10) and the second movable block (12) are vertically slidably attached to the inner wall of the sampling tube (4); The upper end of the top rod (13) slidably penetrates the first fixed block (9) and is adapted with the top block (8), the lower end of the top rod (13) slidably penetrates the second fixed block (11) and is fixed with the second movable block (12), the first movable block (10) is fixedly sleeved on the outer side of the top rod (13) and is fixed with the first fixed block (9) through the tension spring (14); The first fixed block (9) and the first movable block (10) are provided with staggered air holes, and the second fixed block (11) and the second movable block (12) are also provided with staggered air holes; When the tension spring (14) is not subjected to external force, the first movable block (10) is attached to the first fixed block (9), and the second movable block (12) is attached to the second fixed block (11).

3. The air sampling device for environmental detection according to claim 2, characterized in that: The upper end of the sampling tube (4) is provided with a notch (401) for the top block (8).

4. The air sampling device for environmental detection according to claim 2, characterized in that: The top block (8) is a disc, and the top block (8) is coaxially rotatably installed on the outer side of the connecting shaft (7), and the circumferential arc surface of the top block (8) is in contact with the top end of the top rod (13).

5. The air sampling device for environmental detection according to claim 1, characterized in that: The top of the taking and placing opening (102) and the damping hole (201) are provided with an expansion groove (202).

6. The air sampling device for environmental detection according to claim 1, wherein: The top end of the air inlet pipe (5) is provided with a protective net (15), and the top end of the protective net (15) is provided with a blocking column (16).

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