Large-flow air sampler for air monitoring

Abstract

The utility model relates to the field of air samplers, in particular to a high-flow air sampler for air monitoring. The sampler comprises a machine body, a plurality of sampling pieces, a telescopic assembly and a rotating assembly. The plurality of sampling pieces are arranged on the machine body and are used for sampling air; the telescopic assembly is arranged on the machine body, and the sampling heads are spaced at equal intervals in a telescopic mode of a rhombic telescopic structure. The rotating assembly is arranged on the machine body, and the plurality of sampling heads are horizontally / vertically arranged in a manner that the gear rotates to drive the telescopic assembly to rotate. According to the sampling device, the telescopic end of the telescopic mechanism I extends out by starting the telescopic mechanism I, and the sampling heads sleeved with the lantern ring are driven to slide upwards along the sliding chute, so that the rhombic telescopic structure extends, and a plurality of sampling heads are spaced at equal intervals. The multiple sampling heads can sample air at different positions, so that accidental errors possibly caused by single sampling are effectively reduced, and the data accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the field of air samplers, in particular to a high-flow air sampler for air monitoring. Background Art

[0002] An air sampler is a geodetic instrument used in the fields of chemistry, nuclear science and technology, environmental science and technology, and resource science and technology. Its characteristic lies in being able to efficiently collect air samples and integrating particulate matter and gas sampling.

[0003] A Chinese patent document with the authorization announcement number CN220772680U proposes an air sampler, including a base. An air sampler body is arranged above the top of the base. A sampling port is opened on the front side of the air sampler body. A groove is opened on the top of the base. A first rectangular opening is opened at the middle position on the right side of the base. The first rectangular opening is communicated with the groove. Limiting telescopic rods are fixedly connected near the four corners of the top of the base. The tops of several limiting telescopic rods are fixedly connected with a housing together.

[0004] In the above application, although the threaded rods moving in the inner cavities of adjacent threaded pipes together limit the housing to move upward under the action of several limiting telescopic rods, thus facilitating air sampling at different heights. However, only one sampling head is provided in this device, and only single sampling of air can be carried out at the same time, which may lead to inaccurate data results. Content of the Utility Model

[0005] Aiming at the problems existing in the background art, a high-flow air sampler for air monitoring is proposed.

[0006] The utility model proposes a high-flow air sampler for air monitoring, including a machine body, a plurality of sampling parts, a telescopic assembly and a rotating assembly. A plurality of sampling parts are arranged on the machine body to sample air. The telescopic assembly is arranged on the machine body. By means of the telescopic mode of a "diamond telescopic structure", a plurality of sampling heads are spaced at equal intervals. The rotating assembly is arranged on the machine body. By means of the rotation of a gear to drive the telescopic assembly to rotate, a plurality of sampling heads are arranged horizontally / vertically.

[0007] Preferably, the sampling part includes a plurality of collection bottles arranged in the machine body; a communicating pipe is connected to each of the plurality of collection bottles; sampling heads are arranged at the other ends of the plurality of communicating pipes.

[0008] Preferably, the communicating pipe is a telescopic corrugated hose.

[0009] Preferably, the telescopic assembly includes a fixing plate arranged on the machine body; a rotating shaft is rotatably arranged at the upper end of the fixing plate; one end of the rotating shaft is connected with a rotating plate; a plurality of connecting rods are arranged on one side of the rotating plate; the plurality of connecting rods are rotatably connected between each other and form a "diamond telescopic structure".

[0010] Preferably, the multiple sampling heads are respectively rotatably connected to the rotation points on the central axis of the "diamond-shaped telescopic structure"; among them, the sampling head at the lowermost end is arranged on the rotating plate, and the sampling head at the second lowermost end is slidably connected to the sliding groove opened on the rotating plate; a first telescopic mechanism is further provided at the lower end of the rotating plate; the telescopic end of the first telescopic mechanism is connected with a collar; the collar is rotatably sleeved on the outside of the sampling head at the second lowermost end.

[0011] Preferably, the rotating assembly includes a connecting frame arranged on the machine body; a slide rail is provided at the upper end of the connecting frame; a rack is slidably connected in the slide rail; one end of the rack is connected with the telescopic end of a second telescopic mechanism arranged on the connecting frame, and a gear is meshed and connected on the upper side; the gear is coaxially connected with the rotating shaft on the fixed plate.

[0012] Preferably, limiting blocks are provided at both ends of the slide rail; when the rack slides on the slide rail until it abuts against one end limiting block, the multiple sampling heads are in a horizontal / vertical arrangement state.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] (1) For the large-flow air sampler for air monitoring, by starting the first telescopic mechanism to extend its telescopic end, the sampling head sleeved by the collar is driven to slide upward along the sliding groove, so that the "diamond-shaped telescopic structure" extends, and the multiple sampling heads are spaced apart at equal intervals. The multiple sampling heads can respectively sample the air at different positions, thereby effectively reducing the accidental error that may be brought by a single sampling and improving the accuracy of the data.

[0015] (2) For the large-flow air sampler for air monitoring, by starting the second telescopic mechanism to drive the rack to slide on the slide rail, thereby driving the gear to rotate, and then driving the rotating plate and the "diamond-shaped telescopic structure" to flip, so that the sampling head can respectively sample the air at different heights / horizontal positions. By comparing the concentration changes of pollutants in the air at different positions, the diffusion range and distribution law of pollutants can be judged, so as to facilitate the treatment of pollution. Description of the Drawings

[0016] Figure 1 It is the front view of the overall structure of the utility model;

[0017] Figure 2 It is the rear view of the overall structure of the utility model;

[0018] Figure 3 It is the schematic diagram of the sampling part and the diamond-shaped telescopic structure of the utility model.

[0019] Reference numerals: 1, body; 2, sampling member; 21, collection bottle; 22, connecting pipe; 23, sampling head; 3, telescopic assembly; 31, fixing plate; 32, rotating plate; 33, connecting rod; 34, sliding groove; 35, first telescopic mechanism; 36, collar; 4, rotating assembly; 41, connecting frame; 42, slide rail; 43, rack; 44, second telescopic mechanism; 45, gear; 46, limiting block. Detailed implementation manners

[0020] Embodiment 1

[0021] As Figures 1-3 As shown in the figure, a large-flow air sampler for air monitoring proposed by the present utility model includes a body 1, a plurality of sampling members 2, a telescopic assembly 3 and a rotating assembly 4. The plurality of sampling members 2 are arranged on the body 1 to sample air. The telescopic assembly 3 is arranged on the body 1, and by means of the telescopic manner of the "diamond telescopic structure", the plurality of sampling heads 23 are spaced apart at equal intervals. The rotating assembly 4 is arranged on the body 1, and by means of the rotation of the gear 45 driving the telescopic assembly 3 to rotate, the plurality of sampling heads 23 are arranged horizontally / vertically.

[0022] Further explanation, the sampling member 2 includes a plurality of collection bottles 21 arranged in the body 1; a connecting pipe 22 is connected to each of the plurality of collection bottles 21, and a vacuum pump is provided on the connecting pipe 22; the other ends of the plurality of connecting pipes 22 are each provided with a sampling head 23. Air can be collected multiple times and stored separately, so that horizontal comparison can be made, making the detection result more accurate.

[0023] Further explanation, the connecting pipe 22 is a telescopic corrugated hose. So that the connecting pipe 22 can follow the telescopic assembly 3 to telescopic.

[0024] Further explanation, the telescopic assembly 3 includes a fixing plate 31 arranged on the body 1; a rotating shaft is rotatably provided at the upper end of the fixing plate 31; one end of the rotating shaft is connected with a rotating plate 32; a plurality of connecting rods 33 are provided on one side of the rotating plate 32; the plurality of connecting rods 33 are rotatably connected to each other in pairs and form a "diamond telescopic structure". The plurality of sampling heads 23 are respectively rotatably connected to the rotation points on the axis of the "diamond telescopic structure"; the sampling head 23 located at the lowermost end is arranged on the rotating plate 32, and the second lowermost sampling head 23 is slidably connected to a sliding groove 34 opened on the rotating plate 32; a first telescopic mechanism 35 is further provided at the lower end of the rotating plate 32; the first telescopic mechanism 35 is a cylinder; the telescopic end of the first telescopic mechanism 35 is connected with a collar 36; the collar 36 is rotatably sleeved outside the second lowermost sampling head 23. The setting of the telescopic assembly 3 can space the plurality of sampling heads 23 at equal intervals, so that the plurality of sampling heads 23 can respectively sample air at different positions, thereby effectively reducing the accidental error that may be brought by single sampling and improving the accuracy of data.

[0025] Embodiment 2

[0026] As Figure 2 shown, a large-flow air sampler for air monitoring proposed by the present utility model, compared with the first embodiment, this embodiment further includes: a rotating assembly 4 including a connecting frame 41 provided on the body 1; a slide rail 42 is provided at the upper end of the connecting frame 41; a rack 43 is slidably connected in the slide rail 42; one end of the rack 43 is connected to the telescopic end of a second telescopic mechanism 44 provided on the connecting frame 41, and is meshed and connected with a gear 45 on the upper side; the second telescopic mechanism 44 is a cylinder; the gear 45 is coaxially connected to a rotating shaft on the fixing plate 31. The sampling head 23 can sample the air at different heights / horizontal positions respectively. By comparing the concentration changes of pollutants in the air at different positions, the diffusion range and distribution law of pollutants can be judged, so as to facilitate the treatment of pollution.

[0027] Further explanation, limit blocks 46 are provided at both ends of the slide rail 42; when the rack 43 slides on the slide rail 42 and abuts against one end limit block 46, the plurality of sampling heads 23 are in a horizontal / vertical arrangement state.

[0028] The working principle of the present utility model is as follows: During operation, first start the first telescopic mechanism 35 to extend its telescopic end, driving the sampling head 23 sleeved by the collar 36 to slide upward along the chute 34, so that the "diamond-shaped telescopic structure" extends, and the plurality of sampling heads 23 are spaced apart at equal intervals. Then, when it is necessary to detect the air at different heights / horizontal positions, start the second telescopic mechanism 44 to drive the rack 43 to slide on the slide rail 42, thereby driving the gear 45 to rotate, and then driving the rotating plate 32 and the "diamond-shaped telescopic structure" to flip. Finally, start the vacuum pump on the connecting pipe 22 to suck the air along the connecting pipe 22 into the collection bottle 21, so that the plurality of sampling heads 23 can sample the air at different heights / horizontal positions respectively.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited thereto. Various changes can be made without departing from the spirit of the present utility model within the knowledge scope of those skilled in the art.

Claims

1. A large-flow air sampler for air monitoring, characterized in that: include Body (1); A plurality of sampling components (2) arranged on the machine body (1) for sampling air; A telescopic assembly (3) is arranged on the machine body (1) and is configured to space the plurality of sampling heads (23) at equal distances by means of a "diamond-shaped telescopic structure" telescopic method; And a rotating assembly (4) is arranged on the machine body (1) and drives the telescopic assembly (3) to rotate by rotating the gear (45), so that the multiple sampling heads (23) are arranged horizontally / vertically.

2. A large-flow air sampler for air monitoring according to claim 1, characterized in that: The sampling member (2) comprises a plurality of collecting bottles (21) arranged in the machine body (1); the plurality of collecting bottles (21) are all connected with a connecting pipe (22); and the other ends of the plurality of connecting pipes (22) are all provided with a sampling head (23).

3. A large-flow air sampler for air monitoring according to claim 2, characterized in that: The connecting pipe (22) is a retractable corrugated hose.

4. A large-flow air sampler for air monitoring according to claim 2, characterized in that: The telescopic assembly (3) comprises a fixed plate (31) arranged on the machine body (1); a rotating shaft is rotatably provided at the upper end of the fixed plate (31); one end of the rotating shaft is connected to a rotating plate (32); a plurality of connecting rods (33) are provided on one side of the rotating plate (32); and the plurality of connecting rods (33) are rotatably connected in pairs to form a "diamond-shaped telescopic structure".

5. A large-flow air sampler for air monitoring according to claim 4, characterized in that: A plurality of sampling heads (23) are rotatably connected to the rotation points on the central axis of the "diamond-shaped telescopic structure" respectively; the sampling head (23) at the lowest end is arranged on the rotating plate (32), and the sampling head (23) at the second lower end is slidably connected to a slide groove (34) provided on the rotating plate (32); a telescopic mechanism (35) is also arranged at the lower end of the rotating plate (32); a sleeve ring (36) is connected to the telescopic end of the telescopic mechanism (35); and the sleeve ring (36) is rotatably sleeved on the outer side of the sampling head (23) at the second lower end.

6. A large-flow air sampler for air monitoring according to claim 4, characterized in that: The rotating assembly (4) comprises a connecting frame (41) arranged on the machine body (1); a slide rail (42) is arranged at the upper end of the connecting frame (41); a rack (43) is slidably connected inside the slide rail (42); one end of the rack (43) is connected to the telescopic end of a second telescopic mechanism (44) arranged on the connecting frame (41), and a gear (45) is meshedly connected on the upper side; the gear (45) is coaxially connected to a rotating shaft on the fixed plate (31).

7. A large-flow air sampler for air monitoring according to claim 6, characterized in that: Limit blocks (46) are provided at both ends of the slide rail (42); when the rack (43) slides on the slide rail (42) until it abuts against the limit block (46) at one end, the plurality of sampling heads (23) are in a horizontal / vertical arrangement state.

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