Air sampler

Abstract

The utility model relates to the field of environment monitoring equipment, in particular to an air sampler. The sampler comprises a sampler body and a supporting structure arranged at the top of the sampler body, and the supporting structure comprises a telescopic supporting body, a limiting body, a fixed seat, a threaded supporting rod and a limiting nut. According to the air sampler provided by the utility model, during sampling, the sampling height of the sampling pipe can be adjusted by adjusting the use height of the telescopic supporting body, so that air at different heights can be sampled, and the sampling height of the sampling pipe can be adjusted by virtue of the cooperation of the telescopic supporting body, the fixed seat, the threaded supporting rod and the limiting nut; the angle of the sampling pipe can be adjusted, so that air in different directions can be sampled, the structure is simple, and the operation is convenient; when the supporting structure is not used, the length of the telescopic supporting body can be adjusted, so that the telescopic supporting structure is convenient to carry, easy to use and recycle, small in occupied space and high in practical value.

Description

Technical Field

[0001] The utility model relates to the field of environmental monitoring equipment, in particular to an air sampler. Background Art

[0002] The air microbial sampler uses the inertia principle to collect microbial particles suspended in the air onto the sampling medium in a glass or plastic dish, and then culture and further biological analysis. The overall instrument consists of a sampling head, an air pump, a flow meter, a rubber connecting tube, a sampling dish, etc.

[0003] In actual operation, the sampling tube of the existing air sampler is usually set with a fixed structure, which is not convenient for adjusting the height and angle of the sampling tube. When the wind direction changes, the sampling angle cannot be changed, which leads to the inability to sample at different positions, resulting in limitations in the use effect. For this reason, the prior art usually adopts the method of adding a height adjustment device and an angle adjustment device to adjust the height and angle of the sampling tube. For example, a Chinese patent with a publication number of CN216771221U discloses an air sampler, whose height adjustment device includes a first driving mechanism, a screw, a guide rod, a lifting plate and a first sampling tube. When sampling, a first driving mechanism can be used to drive the screw to rotate. When the screw rotates, the guide rod can guide and limit the lifting plate, so that the lifting plate can move vertically along the length direction of the screw, so that the top of the first sampling tube can be driven to rise and fall by the lifting plate, and then the sampling height of the second sampling tube can be adjusted to achieve sampling of air at different heights. At the same time, an angle adjustment device including a second driving mechanism and a second sampling tube is additionally provided. When the wind direction changes, the second driving mechanism can be used to drive the second sampling tube to rotate, so that the angle of the second sampling tube can be adjusted to achieve sampling of air in different directions.

[0004] However, the above-disclosed air sampler has some shortcomings. For example, the added height adjustment device and angle adjustment device are relatively complex in structure and cumbersome in operation. At the same time, when used outdoors, the air sampler is large in size, inconvenient to carry, and has poor practicality.

[0005] Therefore, the utility model provides an air sampler. Utility Model Content

[0006] Based on this, it is necessary to provide an air sampler to address the above technical issues.

[0007] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0008] An air sampler comprises: a sampler body and a support structure arranged on the top of the sampler body, a sampling tube is arranged on the top of the sampler body, the sampler body and the sampling tube are communicated with each other through a rubber connecting tube, the support structure comprises a telescopic support body, a limiting body, a fixing seat, a threaded support rod and a limiting nut, the fixing seat is arranged on the top of the sampler body, the bottom end of the telescopic support body is rotatably connected to the fixing seat, the limiting body is arranged on the upper end side of the telescopic support body, and is used to fix the sampling tube, the limiting body and the sampling tube are detachably connected, the threaded support rod is arranged on the side of the telescopic support body, and passes through the fixing seat, the threaded support rod is threadedly connected to the limiting nut, and is used to fix the threaded support rod on the fixing seat.

[0009] Furthermore, the retractable support body includes a first support body and a second support body, the bottom end of the first support body is rotatably connected to one side of the fixed seat, the second support body is sleeved in the first support body, the first support body is provided with a plurality of slots, and the second support body is provided with a spring buckle adapted to the slots.

[0010] Furthermore, the limiting body is arranged on the upper end side of the second support body, and the limiting body includes two arc-shaped blocking piece structures arranged opposite to each other.

[0011] Furthermore, the threaded support rod is arranged on the side of the second support body, and an arc groove is opened on the fixing seat, and the threaded support rod is slidably matched with the arc groove.

[0012] Furthermore, the sampling tube is arranged in an L-shaped structure.

[0013] Furthermore, a winding column for accommodating the rubber connecting tube is provided at the top of the sampler body, and the winding column includes a column, a spring and an L-shaped pressure block. A mounting groove is provided at the top of the column, and the vertical section of the L-shaped pressure block is slidably sleeved in the mounting groove. The spring is arranged in the mounting groove and sleeved on the vertical section of the L-shaped pressure block.

[0014] Furthermore, the top of the sampler body is also covered with a protective cover.

[0015] The advantages and beneficial effects of the utility model are as follows: the air sampler provided by the utility model, by arranging a supporting structure on the top of the sampler body, can adjust the sampling height of the sampling tube by adjusting the use height of the telescopic support body during sampling, thereby realizing sampling of air at different heights; the coordinated cooperation of the telescopic support body, the fixed seat, the threaded support rod and the limit nut can adjust the angle of the sampling tube, thereby realizing sampling of air in different directions; the structure is simple and the operation is convenient; in addition, when the supporting structure is not in use, the length of the telescopic support body and the position of the threaded support rod on the arc groove can be adjusted to achieve contraction and convenient carrying; the use and recovery operations are simple; it occupies a small space and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the air sampler when not in use in the embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the air sampler during sampling in an embodiment of the utility model;

[0018] Figure 3 It is an enlarged view of point A in the embodiment of the utility model;

[0019] Figure 4 A top view of the air sampler in the embodiment of the utility model during sampling;

[0020] Figure 5 It is a schematic diagram of the structure of the winding column in the embodiment of the utility model.

[0021] Figure numerals: sampler body 1, handle 2, protective cover 3, arc groove 4, first support body 5, second support body 6, rubber connecting tube 7, spring buckle 8, winding column 9, sampling tube 10, limit body 11, threaded support rod 12, limit nut 13, fixing seat 14, slot 15, column 16, spring 17, L-shaped pressure block 18. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below through specific implementation methods combined with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Reference Figure 1-5The air sampler comprises: a sampler body 1 and a supporting structure arranged at the top of the sampler body 1, a sampling tube 10 is arranged at the top of the sampler body 1, the sampler body 1 and the sampling tube 10 are connected through a rubber connecting tube 7, the supporting structure comprises a telescopic support body, a limiting body 11, a fixing seat 14, a threaded support rod 12 and a limiting nut 13, the fixing seat 14 is arranged at the top of the sampler body 1, the bottom end of the telescopic support body is rotatably connected to the fixing seat 14, the limiting body 11 is arranged on the upper end side of the telescopic support body, and is used to fix the sampling tube 10, the limiting body 11 and the sampling tube 10 are detachably connected, the threaded support rod 12 is arranged on the side of the telescopic support body, and passes through the fixing seat 14, the threaded support rod 12 is threadedly connected to the limiting nut 13, and is used to fix the threaded support rod 12 on the fixing seat 14.

[0024] In this embodiment, the retractable support body includes a first support body 5 and a second support body 6, the bottom end of the first support body 5 is rotatably connected to one side of the fixed seat 14, the second support body 6 is sleeved in the first support body 5, the first support body 5 is provided with a plurality of slots 15, and the second support body 6 is provided with a spring 17 buckle 8 adapted to the slot 15.

[0025] Among them, by setting the first support body 5 and the second support body 6, the length of the second support body 6 extending out or retracting into the first support body 5 can be adjusted according to the actual use height, so as to adjust the angle of the sampling tube 10, and the snap connection of the slot 15 and the spring 17 snap 8 can achieve relative fixation between the first support body 5 and the second support body 6.

[0026] In this embodiment, the limiting body 11 is disposed on the upper side surface of the second support body 6 , and the limiting body 11 includes two arc-shaped blocking pieces that are disposed opposite to each other.

[0027] Among them, by setting an arc-shaped baffle structure, the sampling tube 10 can be clamped, and the sampling tube 10 can be disassembled and replaced according to actual needs, which is more flexible to use; in addition, when it is necessary to collect air from different directions, the sampling tube 10 can also be manually rotated to achieve sampling of air from different directions.

[0028] In this embodiment, the threaded support rod 12 is disposed on the side of the second support body 6 , and the fixing seat 14 is provided with an arc groove 4 , and the threaded support rod 12 is slidably matched with the arc groove 4 .

[0029] Among them, by setting the threaded support rod 12 and the arc groove 4, the position of the threaded support rod 12 on the arc groove 4 can be adjusted according to the actual use angle, and then the threaded support rod 12 can be fixed on the fixing seat 14 through the limit nut 13, so that the angle of the sampling tube 10 can be adjusted, thereby realizing the sampling of air in different directions.

[0030] In this embodiment, the sampling tube 10 is arranged in an L-shaped structure.

[0031] In this embodiment, a winding post 9 for accommodating the rubber connecting tube 7 is also provided at the top of the sampler body 1. The winding post 9 includes a column 16, a spring 17 and an L-shaped pressure block 18. A mounting groove is provided at the top of the column 16. The vertical section of the L-shaped pressure block 18 is slidably sleeved in the mounting groove. The spring 17 is arranged in the mounting groove and sleeved on the vertical section of the L-shaped pressure block 18.

[0032] Among them, by setting the column 16, the spring 17 and the L-shaped pressure block 18, when the rubber connecting tube 7 is wrapped around the column 16, the elastic action of the spring 17 can make the L-shaped pressure block 18 press the rubber connecting tube 7, so that the top space of the air sampler is more tidy when not in use.

[0033] In this embodiment, a protective cover 3 is also provided on the top of the sampler body 1. When the air sampler is not in use, the protective cover 3 can be used to protect the sampling tube 10 to reduce contamination. At the same time, it can also accommodate and protect the supporting structure and the winding column 9 to reduce damage.

[0034] Furthermore, the top of the sampler body 1 of the utility model is also provided with two handles 2 for easy carrying.

[0035] The working process of the utility model is as follows: when in use, first place the sampler body 1 at the preset monitoring position, remove the protective cover 3, the rubber connecting tube 7 and the sampling tube 10 wound on the column 16, then clamp the sampling tube 10 on the limiting body 11, and according to the actual use height, use the clamping groove 15 and the spring 17 buckle 8 to adjust the length of the second support body 6 extending out or retracting into the first support body 5, so as to adjust the angle of the sampling tube 10. At the same time, adjust the position of the threaded support rod 12 on the arc groove 4 according to the actual use angle, and then fix the threaded support rod 12 to the fixing seat 14 through the limiting nut 13. On, the angle of the sampling tube 10 can be adjusted to sample the air in different directions. When it is necessary to collect air in different directions, the sampling tube 10 can be manually rotated to sample the air in different directions. After the sampling is completed, the sampling tube 10 is removed, and the length of the second support body 6 retracted into the first support body 5 is adjusted until the initial position is restored. At the same time, the limit nut 13 is loosened, and the position of the threaded support rod 12 on the arc groove 4 is adjusted to the initial position. Then, the rubber connecting tube 7 is wrapped around the column 16, and the sampling tube 10 is clamped on the limit body 11, and finally the protective cover 3 is covered.

[0036] Obviously, it should be understood by those skilled in the art that the above-mentioned various steps of the present invention can be performed in a manner different from the present invention, and the simulation method and experimental equipment include but are not limited to the above description. The above-mentioned various steps of the present invention can be performed in a different order than here in some cases, and the steps shown or described above can be performed separately. Therefore, the present invention is not limited to any specific combination of hardware and software.

[0037] The above contents are further detailed descriptions of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. Air sampler, including: The sampler body and the supporting structure arranged on the top of the sampler body are characterized in that a sampling tube is arranged on the top of the sampler body, and the sampler body and the sampling tube are communicated with each other through a rubber connecting tube. The supporting structure includes a telescopic support body, a limiting body, a fixing seat, a threaded support rod and a limiting nut. The fixing seat is arranged on the top of the sampler body, and the bottom end of the telescopic support body is rotatably connected to the fixing seat. The limiting body is arranged on the upper end side of the telescopic support body for fixing the sampling tube. The limiting body and the sampling tube are detachably connected. The threaded support rod is arranged on the side of the telescopic support body and passes through the fixing seat. The threaded support rod is threadedly connected to the limiting nut for fixing the threaded support rod on the fixing seat.

2. The air sampler according to claim 1, characterized in that: The telescopic support body includes a first support body and a second support body, the bottom end of the first support body is rotatably connected to one side of the fixed seat, the second support body is sleeved in the first support body, the first support body is provided with a plurality of slots, and the second support body is provided with a spring buckle adapted to the slots.

3. The air sampler according to claim 2, characterized in that: The limiting body is arranged on the upper end side surface of the second supporting body, and the limiting body includes two arc-shaped blocking sheet structures arranged opposite to each other.

4. The air sampler according to claim 2, characterized in that: The threaded support rod is arranged on the side of the second support body, and an arc groove is opened on the fixing seat, and the threaded support rod is slidably matched with the arc groove.

5. The air sampler according to claim 1, characterized in that: The sampling tube is arranged in an L-shaped structure.

6. The air sampler according to claim 1, characterized in that: The top of the sampler body is also provided with a winding column for accommodating the rubber connecting tube, and the winding column includes a column, a spring and an L-shaped pressure block. The top of the column is provided with a mounting groove, and the vertical section of the L-shaped pressure block is slidably sleeved in the mounting groove. The spring is arranged in the mounting groove and sleeved on the vertical section of the L-shaped pressure block.

7. The air sampler according to any one of claims 1 to 6, characterized in that: The top of the sampler body is also covered with a protective cover.

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