Air sampling device

Abstract

The utility model relates to the technical field of air sampling, and particularly discloses an air sampling device. The sampling device comprises a base, a lifting box, a protective cover, a sampling box and a sampling bottle, the sampling box is fixedly connected to the base, a supporting plate is arranged on the sampling box, the sampling box is arranged on the supporting plate, the protective cover is fixedly connected to the front side of the sampling box, and the sampling bottle is meshed with the rear side of the sampling box. The air sampling device disclosed by the utility model has the beneficial effects that through the cooperation of the motor, the screw rod, the lifting plate and other parts, a worker can freely adjust the sampling height according to the actual situation when sampling air; the one-way air inlet valve and the one-way air outlet valve are arranged in the sampling bottle, so that the sealing performance of the sampling bottle can be ensured when the sampling bottle is taken down, and external air cannot enter the sampling bottle to cause air pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of air sampling, and particularly discloses an air sampling device. Background Art

[0002] Air sampling, the process of collecting samples of pollutants or contaminated air in the atmosphere, is a key step in assessing air quality and monitoring pollutant concentrations in environmental science research.

[0003] Existing air sampling devices don't completely remove the initial air from the sampling bottle during sampling. Furthermore, after sampling, impurities can easily enter the bottle during removal, affecting the quality of the sample. Furthermore, different work scenarios require different air sampling heights at different locations, but existing air sampling devices are generally only capable of sampling air at a certain height, resulting in unrepresentative samples. Utility Model Content

[0004] In order to solve the above problems, the present invention discloses an air sampling device, which is implemented through the following technical solutions.

[0005] An air sampling device includes a base, a lifting box, a protective cover, a sampling box, and a sampling bottle. Universal wheels are fixedly connected to the four corners of the lower surface of the base. The lifting box is fixedly connected to the upper surface of the base. A support rod is slidably connected to the lifting box. A support plate is fixedly connected to the top of the support rod. The sampling box is fixedly connected to the support plate. A mounting seat is fixedly connected to the front side of the sampling box. A protective cover is fixedly connected to the mounting seat. The mounting seat is fixedly connected to the rear side of the sampling box. The sampling bottle is engaged in the mounting seat. A one-way air inlet valve is fixedly connected to the front bottle opening of the sampling bottle. A one-way air outlet valve is fixedly connected to the rear bottle opening of the sampling bottle. A closure cap is engaged on the rear bottle opening. An air inlet pipe is fixedly connected to the position of the front side of the sampling box corresponding to the mounting seat. A flow meter is fixedly connected to the other end of the air inlet pipe. The flow meter is fixedly connected to an air pump via a connecting pipe. The air outlet of the air pump is fixedly connected to the mounting seat via the air outlet pipe.

[0006] Furthermore, a threaded notch is provided inside the mounting seat, an external thread is fixed to the front side of the sampling box, and the sampling bottle is engaged in the mounting seat.

[0007] Furthermore, positioning plates are fixedly connected to the left and right sides of the sampling box, positioning bolts are inserted into the positioning plates, positioning holes are opened on the support plate, and positioning bolts are engaged in the positioning holes.

[0008] Furthermore, a motor is fixed to the bottom of the lifting box, a screw is fixed to the output shaft of the motor, a lifting plate is meshed on the screw, support rods are fixed to the lifting plate symmetrically front and back, and the support rods are slidably connected to the top plate of the lifting box.

[0009] Furthermore, a handle is fixedly connected to the top of the sampling box, and an anti-slip cover is fixedly connected to the handle.

[0010] Furthermore, a protective net is fixedly connected inside the protective cover.

[0011] Furthermore, a push handle is fixedly connected to the base.

[0012] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects: through the cooperation of components such as the motor, the screw, and the lifting plate, the staff can freely adjust the sampling height according to the actual situation when taking air samples; by arranging a one-way air inlet valve and a one-way air outlet valve in the sampling bottle, it can be ensured that when the sampling bottle is removed, its sealing is guaranteed, and external air will not enter it and cause air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the specific implementation methods. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is an axonometric diagram of an air sampling device according to the present invention;

[0015] Figure 2 This is a cross-sectional view of an air sampling device according to the present invention;

[0016] Figure 3 This is a structural relationship diagram of the sampling box and sampling bottle described in the present invention.

[0017] The accompanying drawings are marked as follows: 1. Base; 11. Universal wheel; 12. Push handle; 2. Lifting box; 21. Support rod; 22. Support plate; 23. Motor; 24. Screw; 25. Lifting plate; 3. Protective cover; 31. Protective net; 4. Sampling box; 41. Mounting seat; 42. Air inlet pipe; 43. Flow meter; 44. Connecting pipe; 45. Vacuum pump; 46. Air outlet pipe; 47. Positioning plug plate; 48. Positioning bolt; 49. Handle; 5. Sampling bottle; 51. One-way air inlet valve; 52. One-way air outlet valve; 53. Closing cover; 54. External thread. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in 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.

[0019] like Figure 1-3 As shown, the utility model provides a technical solution: an air sampling device, including a base 1, a lifting box 2, a protective cover 3, a sampling box 4 and a sampling bottle 5, the four corners of the lower surface of the base 1 are fixedly connected with universal wheels 11, the upper surface of the base 1 is fixedly connected with the lifting box 2, a support rod 21 is slidably connected in the lifting box 2, the top of the support rod 21 is fixedly connected with a support plate 22, the sampling box 4 is fixedly connected to the support plate 22, the front side of the sampling box 4 is fixedly connected with a mounting seat 41, the mounting seat 41 is fixedly connected with the protective cover 3, the rear side of the sampling box 4 A mounting base 41 is fixedly connected, a sampling bottle 5 is engaged in the mounting base 41, a one-way air inlet valve 51 is fixedly connected to the front bottle mouth of the sampling bottle 5, a one-way air outlet valve 52 is fixedly connected to the rear bottle mouth of the sampling bottle 5, and a closing cover 53 is engaged on the rear bottle mouth. An air inlet pipe 42 is fixedly connected to the position of the mounting base 41 on the front side of the sampling box 4, and a flow meter 43 is fixedly connected to the other end of the air inlet pipe 42. The flow meter 43 is fixedly connected to an air pump 45 through a connecting pipe 44, and the air outlet of the air pump 45 is fixedly connected to the mounting base 41 through an air outlet pipe 46.

[0020] Preferably, a threaded notch is provided inside the mounting seat 41 , an external thread 54 is fixed to the front side of the sampling box 4 , and the sampling bottle 5 is engaged in the mounting seat 41 .

[0021] Through the threaded connection, after the sampling of the sampling bottle 5 is completed, the staff can easily take out the sampling bottle 5.

[0022] Preferably, positioning plates 47 are fixed to the left and right sides of the sampling box 4, positioning bolts 48 are inserted into the positioning plates 47, and positioning holes are opened on the support plate 22, and positioning bolts 48 are engaged in the positioning holes.

[0023] The cooperation between the positioning bolt 48 and the positioning socket enables the device to remain stable during sampling and will not move back and forth due to external influences.

[0024] Preferably, a motor 23 is fixed to the bottom of the lifting box 2, the output shaft of the motor 23 is fixed to a screw 24, a lifting plate 25 is engaged on the screw 24, and support rods 21 are fixed to the lifting plate 25 symmetrically in front and back, and the support rods 21 are slidably connected to the top plate of the lifting box 2.

[0025] Through the cooperation of the motor 23, the screw rod 24, the lifting plate 25 and other components, the staff can freely adjust the sampling height according to the actual situation when taking samples.

[0026] Preferably, a handle 49 is fixed to the top of the sampling box 4 , and an anti-slip cover is fixed to the handle 49 .

[0027] When performing simple air sampling, the staff can directly loosen the positioning bolt 48 to separate the sampling box 4 from the support plate 22, grab the handle 49, and carry the sampling device conveniently.

[0028] Preferably, a protective net 31 is fixed inside the protective cover 3 .

[0029] The protective net can intercept the debris floating in the outside air, thus preventing the floating debris from clogging the air inlet pipe 42 on the sampling box 4.

[0030] Preferably, a push handle 12 is fixed to the base 1 .

[0031] By pushing the push handle 12, the staff can conveniently push the device to any place for stable sampling.

[0032] A specific embodiment of the present invention is as follows:

[0033] When performing air sampling activities, the staff can push the push handle 12 to push the sampling device to the location where sampling is required, and then start the motor 23. The rotation of the motor 23 will drive the screw 24 to rotate together, and then drive the lifting plate 25 and the support plate 22 to perform synchronous lifting and lowering activities. When the air sampling height is determined, the motor 23 is turned off and the air pump 45 is turned on. The air pump 45 draws air in, passing through the protective cover 3, the air inlet pipe 42, the flow meter 43, the connecting pipe 44, the air outlet pipe 46, and the sampling bottle 5 in sequence. When air enters the sampling bottle 5, the closing cover 53 at the bottle mouth on the rear side of the sampling bottle 5 can be removed to allow the air originally retained in the sampling box 4 to be discharged from the one-way air outlet valve 52. After observing the amount of air flowing through displayed on the flow meter 43, after determining that the air in the sampling box 4 is completely discharged, the closing cover 53 is covered, the air pump 45 is turned off, the sampling bottle 5 is taken out, and the closing cover 53 is covered at the bottle mouth to preserve the sampling bottle 5.

[0034] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An air sampling device, characterized in that: The utility model comprises a base (1), a lifting box (2), a protective cover (3), a sampling box (4) and a sampling bottle (5), wherein the four corners of the lower surface of the base (1) are fixedly connected with universal wheels (11), the upper surface of the base (1) is fixedly connected with the lifting box (2), a support rod (21) is slidably connected in the lifting box (2), the top of the support rod (21) is fixedly connected with a support plate (22), the support plate (22) is fixedly connected with the sampling box (4), the front side of the sampling box (4) is fixedly connected with a mounting seat (41), the mounting seat (41) is fixedly connected with the protective cover (3), the rear side of the sampling box (4) is fixedly connected with the mounting seat (41), the A sampling bottle (5) is engaged in the mounting seat (41), a one-way air inlet valve (51) is fixed in the front bottle mouth of the sampling bottle (5), a one-way air outlet valve (52) is fixed in the rear bottle mouth of the sampling bottle (5), and a closing cover (53) is engaged on the rear bottle mouth. An air inlet pipe (42) is fixed at the position corresponding to the mounting seat (41) on the front side of the sampling box (4), a flow meter (43) is fixed at the other end of the air inlet pipe (42), and the flow meter (43) is fixed to an air pump (45) through a connecting pipe (44), and the air outlet of the air pump (45) is fixed to the mounting seat (41) through an air outlet pipe (46).

2. An air sampling device according to claim 1, characterized in that: A threaded notch is provided inside the mounting seat (41), an external thread (54) is fixed to the front side of the sampling bottle (5), and the sampling bottle (5) is engaged in the mounting seat (41).

3. An air sampling device according to claim 1, characterized in that: The left and right sides of the sampling box (4) are fixedly connected with positioning plug plates (47), and positioning bolts (48) are inserted into the positioning plug plates (47). The support plate (22) is provided with positioning sockets, and the positioning sockets are engaged with positioning bolts (48).

4. An air sampling device according to claim 1, characterized in that: The bottom of the lifting box (2) is fixed with a motor (23), the output shaft of the motor (23) is fixed with a screw (24), a lifting plate (25) is engaged with the screw (24), and the lifting plate (25) is fixed with support rods (21) symmetrically in front and back, and the support rods (21) are slidably connected to the top plate of the lifting box (2).

5. The air sampling device according to claim 1, characterized in that: A handle (49) is fixedly connected to the top of the sampling box (4), and an anti-slip sleeve is fixedly connected to the handle (49).

6. An air sampling device according to claim 1, characterized in that: A protective net (31) is fixedly connected inside the protective cover (3).

7. An air sampling device according to claim 1, characterized in that: A push handle (12) is fixedly connected to the base (1).

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