Multi-point air sampling device

Abstract

The utility model relates to the technical field of air sampling devices, in particular to a multipoint air sampling device, which comprises a base, the top of the base is fixedly connected with an exhaust fan, the top of the base is fixedly connected with a shell on one side of the exhaust fan, and an air pipe storage mechanism is arranged in the shell. When the sampling equipment is used, the rotating shaft is driven by rotating the hand rocker, the pipe winding roller is driven by the rotating shaft, so that the air pipe can be stored, the lengths of the used air pipes are different according to different placement positions of the sampling equipment body, and the pipe winding roller can be fixed or unlocked by starting the first groove; the air pipes of different sampling equipment bodies can be completely stored by driving the air pipes to drive one or more sampling equipment bodies, so that the convenience in use is greatly improved, the situation that the air pipes need to be manually rolled up and stored by workers is reduced, and the workload of the workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air sampling devices, in particular to a multi-point air sampling device. Background Art

[0002] Indoor air quality is crucial to human health. Before moving in, it is necessary to sample and test the indoor air to see if the content of harmful substances such as formaldehyde and benzene in the air exceeds the standard. Air sampling needs to be set up at multiple points for dispersed sampling according to the size of the space. According to the announcement number CN218067285U, a multi-point air sampling device is proposed, which includes an exhaust fan and multiple sampling ends. Each sampling end is provided with an activated carbon sampling port and a solvent sampling port. A flow valve is provided at the air outlet of each sampling port, and the sampling end is connected to the exhaust fan through an air pipe. The structural design of the utility model is reasonable and ingenious. The exhaust fan is separated from the sampling end, so that the exhaust fan can be placed far away from the sampling point, reducing the air flow at the sampling port and improving the sampling accuracy. By connecting multiple sampling ends with the exhaust fan, different sampling points can be sampled simultaneously, reducing the time required for indoor sampling in large spaces and improving sampling efficiency.

[0003] However, the existing multi-point air sampling device is very inconvenient to store because it is equipped with multiple sampling ends. Since sampling is required at different positions to improve sampling efficiency, the air tubes used are also numerous and long, making storage very troublesome. For this reason, we propose a multi-point air sampling device. Utility Model Content

[0004] In response to the above-mentioned shortcomings of the prior art, the utility model provides a multi-point air sampling device, which can effectively solve the problem that the existing multi-point air sampling device in the prior art is very inconvenient to store because it is provided with multiple sampling ends. Since sampling is required at different positions to improve the sampling efficiency, the air pipes used are also more and longer, making storage very troublesome.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The utility model provides a multi-point air sampling device, comprising a base, the top of the base is fixedly connected to an exhaust fan, the top of the base and one side of the exhaust fan is fixedly connected to an outer shell, an air pipe storage mechanism is arranged inside the outer shell, three sampling device bodies are arranged on the top of the base and one side of the outer shell, and a protective mechanism is arranged on the top of the base and outside the three sampling device bodies.

[0007] According to the above-mentioned multi-point air sampling device, preferably, the air tube storage mechanism includes a rotating shaft rotatably connected inside the shell, three tube rollers are rotatably connected to the outside of the rotating shaft, a second groove is provided on the inner wall of the tube roller, three first grooves are provided on the outside of the rotating shaft, an electric push rod is fixedly connected to the inside of the first groove, the output end of the electric push rod is clamped with the second groove, an air tube is provided on the outside of the tube roller, and a hand crank is fixedly connected to one end of the rotating shaft and located on the outside of the shell.

[0008] Preferably, the protection mechanism includes a protective cover that is rotatably connected to the top of the base and located on the outside of the three sampling device bodies. Four springs are provided on the top of the inner wall of the protective cover and located above the three sampling device bodies. One end of each two of the springs is fixedly connected to a limiting frame, and the limiting frame is located on the outside of the sampling device body. The top of the base is fixedly connected to the outside of the sampling device body to a limiting block, and one side of the top of the protective cover is fixedly connected to a first handle.

[0009] Preferably, a second handle is fixedly connected to the top of the sampling device body, a flow valve is provided on one side of the sampling device body, one end of the air pipe is fixedly connected to the flow valve, the other end of the air pipe passes through the outer shell, and a multi-way connecting pipe is fixedly connected to one side of the exhaust fan, and the air pipe is fixedly connected to the multi-way connecting pipe.

[0010] Preferably, two universal wheels are fixedly connected to the bottom and corresponding two sides of the base, and two armrests are fixedly connected to one side of the top of the base close to the exhaust fan.

[0011] Preferably, a control panel is fixedly connected to one side of the shell, and the control panel is electrically connected to the second slot, wherein the two sampling device bodies are respectively an activated carbon sampling end and a solvent sampling end, and the air pipe is a hard pipe.

[0012] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0013] The utility model adopts an air tube storage mechanism, which can drive the rotating shaft by rotating the hand crank during use, and the air tube can be stored by driving the tube reel roller through the rotating shaft. The air tube length used varies according to the position where the sampling device body is placed. By starting the first slot, the tube reel roller can be fixed or unlocked, thereby driving one or several sampling device bodies to completely store the air tubes of different sampling device bodies, which greatly improves the convenience during use, reduces the need for staff to manually roll up and store the air tube, and reduces the workload of staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a side sectional view of the utility model;

[0017] Figure 3 This is a cross-sectional view of the trachea storage mechanism of the present invention;

[0018] Figure 4 This is a schematic diagram of the main structure of the sampling device of the present utility model.

[0019] Figure numerals: 1. base; 2. armrest; 3. exhaust fan; 4. multi-way connecting pipe; 5. outer shell; 6. control panel; 7. first handle; 8. protective cover; 10. universal wheel; 11. air pipe; 12. hand crank; 13. limit frame; 14. spring; 15. sampling device body; 16. limit block; 17. electric push rod; 18. rotating shaft; 19. first slot; 20. second slot; 21. tube roller; 22. second handle; 23. flow valve. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Example: Refer to Figures 1 to 4 The multi-point air sampling device includes a base 1, the top of the base 1 is fixedly connected to an exhaust fan 3, the top of the base 1 and one side of the exhaust fan 3 is fixedly connected to a shell 5, an air pipe storage mechanism is provided inside the shell 5, three sampling device bodies 15 are provided at the top of the base 1 and one side of the shell 5, and a protective mechanism is provided at the top of the base 1 and on the outside of the three sampling device bodies 15.

[0023] The trachea storage mechanism includes a rotating shaft 18 rotatably connected inside the shell 5, and three tube reel rollers 21 are rotatably connected to the outer side of the rotating shaft 18. The inner wall of the tube reel roller 21 is provided with a second groove 20, and the outer side of the rotating shaft 18 is provided with three first grooves 19. The electric push rod 17 is fixedly connected to the inside of the first groove 19, and the output end of the electric push rod 17 is engaged with the second groove 20. The trachea 11 is provided on the outer side of the tube reel roller 21, and one end of the rotating shaft 18 is fixedly connected to the hand crank 12 located on the outer side of the shell 5. By rotating the hand crank 12, the rotating shaft 18 is driven, and the tube reel roller 21 is driven by the rotating shaft 18 to store the trachea 11. The length of the trachea 11 used varies depending on the position where the sampling device body 15 is placed. By activating the first groove 19, the tube reel roller 21 can be fixed or unlocked, thereby driving one or more sampling device bodies 15 to achieve the goal of completely storing the trachea 11 of different sampling device bodies 15, which greatly improves the convenience during use, reduces the workload, and reduces the waste of time after the operation is completed.

[0024] The protection mechanism includes a protective cover 8 that is rotatably connected to the top of the base 1 and located on the outside of the three sampling device bodies 15. Four springs 14 are provided on the top of the inner wall of the protective cover 8 and above the three sampling device bodies 15. One end of each two springs 14 is fixedly connected to a limiting frame 13, and the limiting frame 13 is located on the outside of the sampling device body 15. The top of the base 1 and the outside of the sampling device body 15 are fixedly connected to a limiting block 16. A first handle 7 is fixedly connected to one side of the top of the protective cover 8. During the movement of the device, the three sampling device bodies 15 are protected by the protective cover 8, thereby effectively preventing the sampling device bodies 15 from being bumped, greatly improving safety. The sampling device body 15 is fixed by the cooperation of the limiting frame 13 and the spring 14, and the position of the sampling device body 15 is limited by the limiting block 16, so that the safety of the sampling device body 15 is greatly improved.

[0025] A second handle 22 is fixedly connected to the top of the sampling device body 15, and a flow valve 23 is provided on one side of the sampling device body 15. One end of the air pipe 11 is fixedly connected to the flow valve 23, and the other end of the air pipe 11 passes through the outer shell 5. One side of the exhaust fan 3 is fixedly connected to the multi-way connecting pipe 4, and the air pipe 11 is fixedly connected to the multi-way connecting pipe 4, which facilitates the transportation of air, thereby greatly improving convenience.

[0026] Two universal wheels 10 are fixedly connected to the bottom and corresponding sides of the base 1, and two armrests 2 are fixedly connected to one side of the top of the base 1 and close to the exhaust fan 3, which facilitates the movement of the device and greatly improves the convenience during use.

[0027] A control panel 6 is fixedly connected to one side of the shell 5, and the control panel 6 is electrically connected to the second slot 20. The two sampling device bodies 15 are respectively the activated carbon sampling end and the solvent sampling end. The air pipe 11 is a hard pipe. The air pipe 11 is made of a hard material so that it will not be squeezed during use, thereby affecting the entry of air.

[0028] The working principle of the present invention is as follows: by rotating the first handle 7 to open the protective cover 8, the sampling device body 15 can be lifted out through the second handle 22 and placed in the detection position. Air enters the interior of the sampling device body 15 to perform detection. After the detection, the exhaust fan 3 is activated to transport the air inside the sampling device body 15 through the air pipe 11 to the exhaust fan 3 for discharge. The hand crank 12 is rotated to drive the rotating shaft 18, and the rotating shaft 18 drives the tube roller 21 to store the air pipe 11. The length of the air pipe 11 used varies depending on the position of the sampling device body 15. By activating the first slot 19, the tube roller 21 can be fixed or unlocked, thereby driving one or more sampling device bodies 15 to fully store the air pipes 11 of different sampling device bodies 15. The protective cover 8 protects the three sampling device bodies 15, thereby effectively preventing the sampling device bodies 15 from being bumped, greatly improving safety. The sampling device body 15 is fixed by the cooperation of the limit frame 13 and the spring 14, and the position of the sampling device body 15 is limited by the limit block 16.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Multi-point air sampling device, characterized in that, The invention comprises a base (1), the top of the base (1) is fixedly connected to an exhaust fan (3), the top of the base (1) and located on one side of the exhaust fan (3) is fixedly connected to a shell (5), an air pipe receiving mechanism is provided inside the shell (5), three sampling device bodies (15) are provided on the top of the base (1) and located on one side of the shell (5), and a protection mechanism is provided on the top of the base (1) and located on the outside of the three sampling device bodies (15).

2. The multi-point air sampling device according to claim 1, characterized in that: The trachea storage mechanism includes a rotating shaft (18) rotatably connected inside the housing (5), three tube rollers (21) are rotatably connected to the outside of the rotating shaft (18), a second groove (20) is provided on the inner wall of the tube roller (21), three first grooves (19) are provided on the outside of the rotating shaft (18), an electric push rod (17) is fixedly connected inside the first groove (19), the output end of the electric push rod (17) is engaged with the second groove (20), an trachea (11) is provided on the outside of the tube roller (21), and a hand crank (12) is fixedly connected to one end of the rotating shaft (18) and located outside the housing (5).

3. The multi-point air sampling device according to claim 1, characterized in that: The protection mechanism includes a protection cover (8) rotatably connected to the top of the base (1) and located outside the three sampling device bodies (15), four springs (14) are provided on the top of the inner wall of the protection cover (8) and located above the three sampling device bodies (15), one end of each two of the springs (14) is fixedly connected to a limiting frame (13), the limiting frame (13) is located outside the sampling device body (15), the top of the base (1) and located outside the sampling device body (15) is fixedly connected to a limiting block (16), and one side of the top of the protection cover (8) is fixedly connected to a first handle (7).

4. The multi-point air sampling device according to claim 1, characterized in that: A second handle (22) is fixedly connected to the top of the sampling device body (15), a flow valve (23) is provided on one side of the sampling device body (15), one end of the air pipe (11) is fixedly connected to the flow valve (23), and the other end of the air pipe (11) passes through the housing (5), one side of the exhaust fan (3) is fixedly connected to a multi-way connecting pipe (4), and the air pipe (11) is fixedly connected to the multi-way connecting pipe (4).

5. The multi-point air sampling device according to claim 1, characterized in that: Two universal wheels (10) are fixedly connected to the bottom and corresponding two sides of the base (1), and two handrails (2) are fixedly connected to one side of the top of the base (1) near the exhaust fan (3).

6. The multi-point air sampling device according to claim 2, characterized in that: A control panel (6) is fixedly connected to one side of the housing (5), and the control panel (6) is electrically connected to the second tank (20), wherein the two sampling device bodies (15) are respectively an activated carbon sampling end and a solvent sampling end, and the air pipe (11) is a hard pipe.

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