Air sampling device for monitoring atmospheric environmental pollution

Abstract

The utility model discloses an air sampling device for monitoring atmospheric environmental pollution, which comprises an air exhauster and a connecting block, a connecting pipe is arranged at the output end of the side surface of the air exhauster, a first one-way valve is arranged at one end of the side surface of the connecting pipe, and a sampling pipe for storing samples is arranged at one end of the side surface of the connecting block. A fixing mechanism for fixing the sampling pipe during sampling is arranged at one end of the side surface of the connecting block; according to the utility model, the sampling tube can be sealed during sampling through the fixing mechanism, so that other substances cannot enter the sampling tube to influence monitoring data, and an internal sample can be well sealed through the sampling tube, so that air or other pollutants cannot enter the sampling tube, and the concentration data after testing is more accurate; the actual condition of atmospheric pollution can be better and more truly reflected, toxic and harmful substances contained in the atmosphere cannot leak out, the health of sampling personnel cannot be influenced, and the use is safer.

Description

Technical Field

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

[0002] Air sampling can directly obtain pollutant samples in the atmospheric environment. By analyzing these samples, the types and concentrations of pollutants in the atmosphere can be accurately determined. This is the basis for understanding the state of atmospheric pollution and the prerequisite for formulating corresponding control measures.

[0003] However, general air sampling devices used for atmospheric environmental pollution monitoring cannot seal the sampling tube well when sampling the atmosphere. A loose seal of the sampling tube may cause external air or pollutants to enter the sampling tube, thereby interfering with or changing the composition and concentration of the original sample. This will cause the measured atmospheric pollutant concentration data to be inaccurate and unable to truly reflect the actual situation of atmospheric pollution. In addition, for certain toxic and harmful atmospheric pollutants, if the sampling tube is not sealed tightly, it may leak into the environment, posing a health risk to the samplers or other contact persons. Utility Model Content

[0004] The purpose of the utility model is to provide an air sampling device for atmospheric environmental pollution monitoring in order to solve the problems raised by the above-mentioned background technology, thereby solving the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air sampling device for atmospheric environmental pollution monitoring, comprising: an air pump and a connecting block, a connecting pipe is provided at the side output end of the air pump, a first one-way valve is provided at one end of the side of the connecting pipe, a sampling tube for storing samples is provided at one end of the side of the connecting block, a fixing mechanism for fixing the sampling tube during sampling is provided at one end of the side of the connecting block, an intake pipe is fixedly connected to the side input end of the air pump, and a second one-way valve is provided at one end of the side of the intake pipe.

[0006] As a further solution of the utility model: the fixing mechanism includes a fixing block fixedly connected to one end of the side surface of the connecting block, a rotating seat fixedly connected to one end of the side surface of the fixing block, a fixing rod fixedly connected to one end of the side surface of the rotating seat, a fixing plate slidably connected to one end of the side surface of the fixing rod, a sliding groove is provided at one end of the side surface of the fixing plate, a threaded rod is screwed to one end of the side surface of the fixing plate, and a handle is fixed to one end of the side surface of the threaded rod.

[0007] As a further solution of the utility model: the sampling tube includes a sampling tube body arranged at one end of the side of the connecting block, a fixing ring is fixedly connected to one end of the side of the sampling tube body, a rubber ring is fixedly connected to one end of the side of the fixing ring, a soft plastic sheet group is fixedly connected to one end of the side of the sampling tube body, a sampling tube cover is screwed to one end of the side of the fixing ring, and the soft plastic sheet group is made of polypropylene and has the advantages of good toughness and chemical resistance.

[0008] As a further solution of the utility model: a hole for sample flow is provided in the middle of the connection block, and a cavity for accommodating one end of the sampling tube is provided at one end of the side of the connection block.

[0009] As a further solution of the utility model: a threaded hole matched with the threaded rod is opened at one end of the side surface of the fixing plate.

[0010] As a further solution of the utility model: the fixing rod is matched with the sliding groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model can seal the sampling tube during sampling through the fixing mechanism, so that other substances will not enter the sampling tube to affect the monitoring data. The internal sample can be well sealed through the sampling tube, and air or other pollutants will not enter therein, so that the concentration data after the test is more accurate, and the actual situation of air pollution can be better and more realistically reflected. Toxic and harmful substances contained in the atmosphere will not leak out to affect the health of the sampling personnel, and the use is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a second perspective overall structural diagram of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the fixing mechanism in the utility model;

[0016] Figure 4 It is a schematic diagram of the split structure of the fixing mechanism in the utility model;

[0017] Figure 5 It is a structural schematic diagram of the sampling tube mechanism in the utility model.

[0018] In the figure: 1. vacuum pump; 2. connecting pipe; 3. first one-way valve; 4. connecting block; 5. fixing mechanism; 51. fixing block; 52. rotating seat; 53. fixing rod; 54. fixing plate; 55. slide groove; 56. threaded rod; 57. handle; 6. sampling tube; 61. sampling tube body; 62. fixing ring; 63. rubber ring; 64. soft rubber sheet group; 65. sampling tube cover; 7. suction tube; 8. second one-way valve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0021] Reference Figures 1 to 5 In an embodiment of the utility model, an air sampling device for atmospheric environmental pollution monitoring includes: an air pump 1 and a connecting block 4, a connecting pipe 2 is provided at the output end of the side of the air pump 1, a first one-way valve 3 is provided at one end of the side of the connecting pipe 2, a sampling tube 6 for storing samples is provided at one end of the side of the connecting block 4, a fixing mechanism 5 for fixing the sampling tube 6 during sampling is provided at one end of the side of the connecting block 4, an intake pipe 7 is fixedly connected to the input end of the side of the air pump 1, and a second one-way valve 8 is provided at one end of the side of the intake pipe 7.

[0022] The fixing mechanism 5 includes a fixing block 51 fixedly connected to one end of the side of the connecting block 4, a rotating seat 52 fixedly connected to one end of the side of the fixing block 51, a fixing rod 53 fixedly connected to one end of the side of the rotating seat 52, a fixing plate 54 slidably connected to one end of the side of the fixing rod 53, a sliding groove 55 is provided at one end of the side of the fixing plate 54, a threaded rod 56 is screwed to one end of the side of the fixing plate 54, and a handle 57 is fixed to one end of the side of the threaded rod 56.

[0023] The above scheme is adopted: first operate the vacuum pump 1, then inhale air into the interior through the suction pipe 7, and then output it to the sampling tube 6 fixed to the side of the connecting block 4 through the fixing mechanism 5 through the connecting pipe 2, so as to complete the sampling, and drive the threaded rod 56 by turning the handle 57 to drive the fixed plate 54 screwed on the side to adjust up and down, when the handle 57 drives the threaded rod 56 to rotate downward, it drives one end of the fixed plate 54 to move upward, and the other end of the fixed plate 54 will squeeze the rubber ring 63 downward, so as to seal the sampling tube 6 when sampling, and drive the threaded rod 56 to move upward by turning the handle 57, thereby loosening the fixed plate 54, and then by sliding the fixed rod 53 connected to the side of the fixed plate 54, the position of the fixed plate 54 can be changed, so that it can move toward the sampling tube 6 or move outward, and then the sampling tube 6 can be taken out.

[0024] The sampling tube 6 includes a sampling tube body 61 arranged at one end of the side of the connecting block 4, a fixing ring 62 is fixedly connected to one end of the side of the sampling tube body 61, a rubber ring 63 is fixedly connected to one end of the side of the fixing ring 62, a soft rubber sheet group 64 is fixedly connected to one end of the side of the sampling tube body 61, and a sampling tube cover 65 is screwed to one end of the side of the fixing ring 62.

[0025] The above scheme is adopted: when the sample is transported inside the sampling tube 6, the elasticity of the soft plastic sheet group 64 will be pushed open by the pressure generated by the vacuum pump 1. After the sampling is completed, the elasticity and toughness of the soft plastic sheet group 64 will make the soft plastic sheet group 64 rebound and seal it. After sampling, the sampling tube cover 65 is screwed onto the thread set on the side of the fixing ring 62 for secondary sealing.

[0026] A hole is provided in the middle of the connecting block 4 for the sample to flow, and a cavity for accommodating one end of the sampling tube 6 is provided at one end of the side of the connecting block 4 .

[0027] A threaded hole matching the threaded rod 56 is formed at one end of the side surface of the fixing plate 54 .

[0028] The fixing rod 53 is matched with the sliding groove 55 .

[0029] The working principle of the utility model is as follows: first, the vacuum pump 1 is operated, and then air is sucked into the interior through the air suction pipe 7, and then outputted to the inside of the sampling tube 6 fixed to the side of the connecting block 4 through the fixing mechanism 5 through the connecting pipe 2, so as to complete the sampling, and the threaded rod 56 is driven by rotating the handle 57 to drive the fixing plate 54 screwed on the side to adjust up and down, when the handle 57 drives the threaded rod 56 to rotate downward, it drives one end of the fixing plate 54 to move upward, and the other end of the fixing plate 54 will squeeze the rubber ring 63 downward, so as to seal the sampling tube 6 when sampling, and the threaded rod 56 is driven by rotating the handle 57 to drive the fixing plate 54 to move upward, and the other end of the fixing plate 54 will squeeze the rubber ring 63 downward, so as to seal the sampling tube 6 when sampling. 6 moves upward, thereby loosening the fixing plate 54, and then the fixing rod 53 connected to the side of the fixing plate 54 can be slidably connected to change the position of the fixing plate 54, so that it can move toward the sampling tube 6 or move outward, and then the sampling tube 6 can be taken out, and the elasticity of the soft plastic sheet group 64 will be flushed open by the pressure generated by the vacuum pump 1 when the sample is transported inside the sampling tube 6. After the sampling is completed, the elasticity and toughness of the soft plastic sheet group 64 will make the soft plastic sheet group 64 rebound to seal it. After sampling, the sampling tube cover 65 is screwed onto the thread set on the side of the fixing ring 62 for secondary sealing.

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air sampling device for atmospheric environmental pollution monitoring, comprising: An air pump (1) and a connecting block (4), characterized in that a connecting pipe (2) is provided at a side output end of the air pump (1), a first non-return valve (3) is provided at one side end of the connecting pipe (2), a sampling tube (6) for storing samples is provided at one side end of the connecting block (4), a fixing mechanism (5) for fixing the sampling tube (6) during sampling is provided at one side end of the connecting block (4), an air intake pipe (7) is fixedly connected to a side input end of the air pump (1), and a second non-return valve (8) is provided at one side end of the air intake pipe (7).

2. The air sampling device for atmospheric environmental pollution monitoring according to claim 1, characterized in that: The fixing mechanism (5) comprises a fixing block (51) fixedly connected to one end of a side surface of the connecting block (4); a rotating seat (52) is fixedly connected to one end of a side surface of the fixing block (51); a fixing rod (53) is fixedly connected to one end of a side surface of the rotating seat (52); a fixing plate (54) is slidably connected to one end of a side surface of the fixing rod (53); a sliding groove (55) is provided at one end of a side surface of the fixing plate (54); a threaded rod (56) is screwed to one end of a side surface of the fixing plate (54); and a handle (57) is fixedly connected to one end of a side surface of the threaded rod (56).

3. The air sampling device for atmospheric environmental pollution monitoring according to claim 1, characterized in that: The sampling tube (6) comprises a sampling tube body (61) arranged at one end of the side of the connecting block (4); a fixing ring (62) is fixedly connected to one end of the side of the sampling tube body (61); a rubber ring (63) is fixedly connected to one end of the side of the fixing ring (62); a soft rubber sheet group (64) is fixedly connected to one end of the side of the sampling tube body (61); and a sampling tube cover (65) is screwed to one end of the side of the fixing ring (62).

4. The air sampling device for atmospheric environmental pollution monitoring according to claim 1, characterized in that: A hole for the flow of samples is provided in the middle of the connection block (4), and a cavity for accommodating one end of the sampling tube (6) is provided at one end of the side of the connection block (4).

5. The air sampling device for atmospheric environmental pollution monitoring according to claim 2, characterized in that: A threaded hole matching the threaded rod (56) is formed at one end of the side surface of the fixing plate (54).

6. The air sampling device for atmospheric environmental pollution monitoring according to claim 2, characterized in that: The fixing rod (53) is matched with the sliding groove (55).

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