Indoor air sampling device

Abstract

The utility model provides an indoor air sampling device and belongs to the technical field of sampling. Comprising a vehicle body, a driving box is fixed to the middle of the upper end face of the vehicle body, a supporting disc is fixed to the top of the driving box, a rotating plate is rotationally installed on the supporting disc, an air pump is fixed to one end of the upper end face of the rotating plate, a vertical air inlet pipe is fixed to an air inlet of the air pump, and a sample cylinder is connected to an air outlet of the air pump; a telescopic pipe is inserted into the top end of the air inlet pipe, a horizontal collecting pipe is fixed to the top of the telescopic pipe, a supporting rod is fixed to the lower end face of the collecting pipe, a supporting block is fixed to the lower end of the supporting rod, and a screw is arranged on one side of the air inlet pipe in parallel, rotationally installed on the rotating plate and penetrates through the supporting block in a threaded mode. The lower end of the screw penetrates out of the lower end face of the rotating plate and is connected with an adjusting motor. The air sampling device can be used for sampling air in indoor spaces with different heights, so that the sampling range is greatly expanded, and the air detection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling, in particular to an indoor air sampling device. Background Art

[0002] Indoor pollution is mainly caused by the presence of various volatile organic compounds in indoor air, which pollute the indoor environment. The most harmful ones are radon, formaldehyde, benzene, ammonia, esters, trichloroethylene, etc. Therefore, in order to ensure the health of the indoor environment, it is necessary to conduct indoor environmental assessment and use air sampling devices for sampling and testing.

[0003] At present, a Chinese patent with publication number CN219870507U discloses a multi-directional indoor air detection sampling device, including a base plate, a support plate is arranged above the base plate, a motor is fixedly installed on one side of the top of the base plate, a second rotating shaft is fixedly installed on the output shaft of the motor, a second bevel gear is fixedly installed on one end of the second rotating shaft, a first rotating shaft is rotatably connected to the top and middle position of the base plate through a bearing seat, and a first bevel gear is fixedly installed on the outer side of the first rotating shaft; the utility model cooperates with each other among components such as a motor, a first bevel gear, a rotating shaft, an air pump and a second air intake pipe, and drives the first rotating shaft to rotate by the motor driving the two bevel gears to mesh and rotate, thereby driving the support plate to rotate, and the device can easily collect air from multiple directions through the rotation of the support plate, and the air at different positions can be drawn into different air storage chambers by closing the one-way valves at different positions.

[0004] When this type of prior art is in use, although it controls the sampling direction by rotation, so as to extract samples of air at different positions in the room, some indoor floors are relatively high, and the device can only control the sampling direction but not the sampling height, resulting in certain limitations in the collected indoor air samples. Therefore, it will affect the effect of indoor environmental impact assessment and needs to be further optimized. Therefore, the present application provides an indoor air sampling device to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an indoor air sampling device to solve the problem that the existing air detection sampling device cannot sample the air at different indoor heights.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] An indoor air sampling device comprises a body, a driving box is fixed to the middle part of the upper end surface of the body, a supporting plate is fixed to the top of the driving box, a rotating plate is rotatably mounted on the supporting plate, and an air pump is fixed to one end of the upper end surface of the rotating plate, a vertical air inlet pipe is fixed to the air inlet of the air pump, and a sample cylinder is connected to the air outlet of the air pump; a telescopic tube is inserted into the top end of the air inlet pipe, a horizontal collection tube is fixed to the top of the telescopic tube, a supporting rod is fixed to the lower end surface of the collection tube, a supporting block is fixed to the lower end of the supporting rod, and a screw is arranged in parallel on one side of the air inlet pipe, the screw is rotatably mounted on the rotating plate, the screw thread passes through the support block, and the lower end of the screw passes through the lower end surface of the rotating plate and is connected to an adjusting motor.

[0008] Optionally, a driving motor is fixed in the driving box, and the shaft of the driving motor passes through the middle of the upper end surface of the supporting plate and is fixed to the lower end surface of the rotating plate.

[0009] Optionally, the upper end surface of the support plate is constructed with a circular limiting edge, and the lower end surface of the rotating plate is provided with a limiting groove, and the limiting groove is slidably engaged with the limiting edge.

[0010] Optionally, a plurality of chambers are provided in the sample cylinder, and the air outlet of the air pump is connected to a connecting pipe, wherein the connecting pipe is provided with a plurality of branches and respectively communicated with the plurality of chambers in the sample cylinder.

[0011] Optionally, valves are provided on the branches of the connecting tube, and each chamber of the sample cylinder is connected to a sampling tube, which extends out of the side of the sample cylinder and is provided with a valve.

[0012] Optionally, a partition frame is vertically slidably installed in the sample tube, and a plurality of partitions are arranged in the partition frame. The partitions are placed in the sample tube and divide the internal space of the sample tube into a plurality of chambers.

[0013] Optionally, the upper end surface of the partition frame is exposed from the top of the sample tube, and a handle is fixed to the upper end surface of the partition frame.

[0014] Optionally, one end of the collection tube away from the telescopic tube is a trumpet-shaped expansion structure.

[0015] Optionally, a plurality of universal wheels are installed on the lower end surface of the vehicle body, and brake pads are arranged on the universal wheels.

[0016] Optionally, a push handle is fixed to one end of the upper end surface of the vehicle body.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] In the above scheme, by arranging the air inlet pipe, the telescopic tube, the collection tube, the support rod, the support block and the screw, the rotation of the screw can be used to control the support block to drive the collection tube to rise and fall on the top of the air inlet pipe through the support rod, and the collection tube is always connected to the air inlet pipe through the telescopic tube, so that the height of the collection tube used for sampling can be conveniently adjusted. In addition to being able to adjust the sampling direction by following the rotation of the rotating plate, it can also sample air in spaces of different heights in the room, which greatly improves the sampling range and is beneficial to improving the air detection effect.

[0019] By providing an air pump, a sample tube and a partition rack, the interior of the sample tube can be divided into multiple chambers for collecting air at different positions through multiple partitions in the partition rack, thereby realizing batch storage of air. The partition rack can be used to lift and withdraw the sample tube, so that the sample tube and the partitions can be easily cleaned, which is conducive to repeated use in the future and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the indoor air sampling device;

[0022] Figure 2 For indoor air sampling devices Figure 1 A magnified schematic diagram of the structure at center A;

[0023] Figure 3 is a side view of the indoor air sampling device;

[0024] Figure 4 This is a schematic diagram of the structure of the partition frame in the indoor air sampling device.

[0025] [Reference Signs]

[0026] 1. Car body; 101. Universal wheel; 102. Push handle; 2. Drive box; 201. Support plate; 202. Limit edge; 3. Rotating plate; 301. Limit groove; 4. Air pump; 5. Inlet pipe; 6. Telescopic pipe; 7. Collection tube; 701. Support rod; 702. Support block; 8. Screw; 801. Adjustment motor; 9. Sample tube; 901. Connecting tube; 902. Sampling tube; 10. Partition rack; 11. Partition plate; 12. Handle.

[0027] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0028] The following is a detailed description of an indoor air sampling device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0029] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0030] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0031] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0032] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0033] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides an indoor air sampling device, including a vehicle body 1, a plurality of universal wheels 101 are installed on the lower end surface of the vehicle body 1, brake pads are provided on the universal wheels 101, and a push handle 102 is fixed at one end of the upper end surface of the vehicle body 1, so that the device is easy to move.

[0034] A driving box 2 is fixed to the middle part of the upper end surface of the vehicle body 1, a supporting plate 201 is fixed to the top of the driving box 2, a rotating plate 3 is rotatably mounted on the supporting plate 201, wherein a circular limiting edge 202 is constructed on the upper end surface of the supporting plate 201, and a limiting groove 301 is provided on the lower end surface of the rotating plate 3, the limiting groove 301 is slidably engaged with the limiting edge 202, so that the rotating plate 3 can stably rotate on the supporting plate 201.

[0035] A driving motor is fixed in the driving box 2, and the shaft of the driving motor passes through the middle of the upper end surface of the supporting disk 201 and is fixed to the lower end surface of the rotating plate 3. Therefore, the driving motor in the driving box 2 can be used to control the rotation of the rotating plate 3 to adjust the direction of the air sampling component subsequently set on the rotating plate 3.

[0036] like Figure 1 and Figure 3 As shown, an air pump 4 is fixed to one end of the upper end surface of the rotating plate 3, a vertical air inlet pipe 5 is fixed to the air inlet of the air pump 4, and a sample tube 9 is connected to the air outlet of the air pump 4. A telescopic tube 6 is inserted at the top of the air inlet pipe 5, and a horizontal collection tube 7 is fixed to the top of the telescopic tube 6, so that the air pump 4 can sample air through the air inlet pipe 5, the telescopic tube 6 and the collection tube 7, and the end of the collection tube 7 away from the telescopic tube 6 is a trumpet-shaped expansion structure, which is conducive to improving the air sampling range of the collection tube 7 port.

[0037] The lower end surface of the collection tube 7 is fixed with a support rod 701, the lower end of the support rod 701 is fixed with a support block 702, and a screw rod 8 is arranged in parallel on one side of the air inlet pipe 5, the screw rod 8 is rotatably mounted on the rotating plate 3, the screw rod 8 thread penetrates the support block 702, the lower end of the screw rod 8 passes through the lower end surface of the rotating plate 3 and is connected with an adjustment motor 801. Therefore, the screw rod 8 can be driven to rotate by the adjustment motor 801, and the threaded cooperation of the support block 702 and the screw rod 8 can be used to drive the adjustment motor 801 to support the collection tube 7 and the telescopic tube 6 to rise and fall on the air inlet pipe 5, so as to adjust the sampling height of the collection tube 7, so that the air at different heights in the room can be sampled, further improving the sampling range.

[0038] like Figure 1 , Figure 3 and Figure 4 As shown, the sample cylinder 9 is provided with a plurality of chambers, and the air outlet of the air pump 4 is connected to a connecting tube 901, the connecting tube 901 is provided with a plurality of branches, and are respectively connected to the plurality of chambers in the sample cylinder 9, and valves are provided on the branches of the connecting tube 901, each chamber of the sample cylinder 9 is connected to a sampling tube 902, the sampling tube 902 extends out of the side of the sample cylinder 9, and is provided with a valve, so that the air pump 4 can be controlled by each valve to collect the collected air into different chambers in the sample cylinder 9 for storage.

[0039] Specifically, a partition frame 10 is vertically slidably installed in the sample tube 9, and a plurality of partitions 11 are arranged in the partition frame 10. The partitions 11 are placed in the sample tube 9 and divide the internal space of the sample tube 9 into a plurality of chambers, and the upper end surface of the partition frame 10 is exposed from the top of the sample tube 9, and a handle 12 is fixed to the upper end surface of the partition frame 10. Therefore, the interior of the sample tube 9 can be divided into a plurality of chambers for collecting air at different positions by the plurality of partitions 11 in the partition frame 10, so that the air can be stored in batches, and the partition frame 10 can be lifted and taken out of the sample tube 9, so that the sample tube 9 and the partitions 11 can be easily cleaned, which is conducive to repeated use in the later stage and is convenient to use. In specific implementation, the sliding cooperation between the partition frame 10 and the interior of the sample tube 9 is sealed to ensure the partition effect of the partition 11 on the sample tube 9.

[0040] The technical solution provided by the utility model, in the above solution, by arranging the air intake pipe 5, the telescopic tube 6, the collection tube 7, the support rod 701, the support block 702 and the screw 8, the support block 702 can be controlled by the rotation of the screw 8 to drive the collection tube 7 to rise and fall on the top of the air intake pipe 5 through the support rod 701, and the collection tube 7 is always connected with the air intake pipe 5 through the telescopic tube 6, so that the height of the collection tube 7 for sampling can be conveniently adjusted, so that in addition to being able to adjust the sampling direction by following the rotation of the rotating plate 3, it can also sample air in spaces of different heights in the room, which greatly improves the sampling range and is conducive to improving the air detection effect.

[0041] By providing an air pump 4, a sample tube 9 and a partition frame 10, the interior of the sample tube 9 can be divided into a plurality of chambers for collecting air at different positions through a plurality of partitions 11 in the partition frame 10, thereby realizing batch storage of air. In addition, the partition frame 10 can be used to lift and lower the sample tube 9, so that the sample tube 9 and the partitions 11 can be easily cleaned, which is conducive to repeated use in the future and is easy to use.

[0042] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An indoor air sampling device, comprising a vehicle body, characterized in that: A driving box is fixed to the middle of the upper end surface of the vehicle body, a supporting plate is fixed to the top of the driving box, a rotating plate is rotatably mounted on the supporting plate, and an air pump is fixed to one end of the upper end surface of the rotating plate, a vertical air inlet pipe is fixed to the air inlet of the air pump, and a sample cylinder is connected to the air outlet of the air pump; A telescopic tube is inserted at the top of the air intake pipe, a horizontal collection tube is fixed on the top of the telescopic tube, a support rod is fixed to the lower end surface of the collection tube, a support block is fixed to the lower end of the support rod, and a screw is arranged parallel to one side of the air intake pipe, the screw is rotatably installed on the rotating plate, the screw thread passes through the support block, and the lower end of the screw passes through the lower end surface of the rotating plate and is connected to an adjusting motor.

2. The indoor air sampling device according to claim 1, characterized in that: A driving motor is fixed in the driving box, and a shaft of the driving motor passes through the middle of the upper end surface of the supporting plate and is fixed to the lower end surface of the rotating plate.

3. The indoor air sampling device according to claim 2, characterized in that: The upper end surface of the support plate is configured with a circular limiting edge, and the lower end surface of the rotating plate is provided with a limiting groove, and the limiting groove is slidably engaged with the limiting edge.

4. The indoor air sampling device according to claim 1, characterized in that: The sample cylinder is provided with a plurality of chambers, and the air outlet of the air pump is connected with a connecting pipe, the connecting pipe is provided with a plurality of branches, and the connecting pipe is respectively communicated with the plurality of chambers in the sample cylinder.

5. The indoor air sampling device according to claim 4, characterized in that: The branches of the connecting pipe are all provided with valves, and each chamber of the sample cylinder is connected with a sampling tube, which extends out of the side of the sample cylinder and is provided with a valve.

6. The indoor air sampling device according to claim 4, characterized in that: A partition frame is vertically slidably installed in the sample tube, and a plurality of partitions are arranged in the partition frame. The partitions are placed in the sample tube and divide the internal space of the sample tube into a plurality of chambers.

7. The indoor air sampling device according to claim 6, characterized in that: The upper end surface of the partition frame is exposed from the top of the sample tube, and a handle is fixed on the upper end surface of the partition frame.

8. The indoor air sampling device according to claim 1, characterized in that: One end of the collection tube away from the telescopic tube is in a trumpet-shaped expansion structure.

9. The indoor air sampling device according to claim 1, characterized in that: A plurality of universal wheels are installed on the lower end surface of the vehicle body, and brake pads are arranged on the universal wheels.

10. The indoor air sampling device according to claim 1, characterized in that: A push handle is fixed at one end of the upper end surface of the vehicle body.

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