Constructional engineering air environment detection device

Abstract

The invention discloses a constructional engineering air environment detection device, which comprises a bearing shell, the upper end of the outer side surface of the bearing shell is fixedly provided with a fixed frame, the fixed frame is fixedly provided with six advancing wheels, and each advancing wheel is provided with a hydraulic cylinder; the positioning and sampling assembly is fixedly assembled in the middle of the inner wall of the bottom side of the bearing shell, a sampling bottle selection assembly and a pretreatment assembly are arranged at the two ends of the positioning and sampling assembly respectively, and the sampling bottle selection assembly and the pretreatment assembly are both fixedly arranged on the inner wall of the bottom of the bearing shell; the reserved sample placing cabin is placed above the pretreatment assembly and horizontally and fixedly assembled on the side wall of the bearing shell, and a sampling auxiliary assembly is fixedly assembled on the side, adjacent to the positioning and sampling assembly, of the reserved sample placing cabin; the air detection assembly is placed above the sampling bottle selection assembly and is horizontally and fixedly assembled on the side wall of the bearing shell; and the two groups of mechanical arms are arranged in a mirroring manner and are fixedly assembled on the positioning and sampling assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental detection, and more particularly to an air environment detection device for construction projects. Background Art

[0002] The main purpose of air environment detection in construction projects is to ensure that the air quality of the construction and use environments meets national standards and industry specifications, thereby protecting the health and safety of personnel. This includes evaluating the concentration of pollutants in indoor air and determining whether there are any exceedances or potential health risks.

[0003] However, existing detection devices can only detect the concentration of specific pollutants, lack autonomy, and cannot effectively remove the original air inside before sampling, thus contaminating the sampled air and affecting the detection results. In addition, existing detection devices remain stationary at the sampling point until sampling is completed, and the process of sampling the same point for a long time will result in a lower concentration of pollutants at that point.

[0004] Therefore, it is necessary to provide an air environment detection device for construction projects to solve the above problems. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: an air environment detection device for construction projects, comprising:

[0006] A carrying shell, on the upper end of the outer side surface of which a fixed frame is fixedly assembled. Six traveling wheels are fixedly arranged on the fixed frame, and a hydraulic cylinder is arranged on each traveling wheel.

[0007] A positioning and sampling assembly, fixedly assembled in the middle of the inner wall at the bottom side of the carrying shell. A sampling bottle selection assembly and a pretreatment assembly are respectively arranged at both ends of the positioning and sampling assembly, and both the sampling bottle selection assembly and the pretreatment assembly are fixedly arranged on the inner wall of the bottom of the carrying shell.

[0008] A sample storage compartment, placed above the pretreatment assembly, horizontally fixedly assembled on the side wall of the carrying shell, and a sampling assistance assembly is fixedly assembled on the side of the sample storage compartment adjacent to the positioning and sampling assembly.

[0009] An air detection assembly, placed above the sampling bottle selection assembly, and horizontally fixedly assembled on the side wall of the carrying shell.

[0010] Two groups of robotic arms, arranged in a mirror image, and fixedly assembled on the positioning and sampling assembly.

[0011] Further, preferably, the sampling bottle selection assembly includes:

[0012] The first fixing frame is fixedly assembled on the inner wall of the bottom of the bearing shell. A first rotating disk is rotatably arranged on the first fixing frame, and four first conveying rollers are fixedly embedded at the bottom of the first rotating disk.

[0013] Three second fixing frames are equidistantly arranged around the first rotating disk and are all fixedly assembled on the inner wall of the bottom of the bearing shell. A sampling bottle aligner and a sampling bottle placer are fixedly arranged on each second fixing frame. The sampling bottle aligner is connected to the sampling bottle placer, and the other end of the sampling bottle aligner is connected to the first fixing frame.

[0014] Further, as a preference, a plurality of sampling bottles are placed in each sampling bottle placer, and the sampling bottles in different sampling bottle placers are made of different materials.

[0015] Further, as a preference, the positioning and sampling assembly includes:

[0016] The telescopic track frame is fixedly assembled on the inner wall of the bottom of the bearing shell. A lifting frame is slidably arranged inside the telescopic track frame. A lifting cable reel is arranged between the upper end of the lifting frame and the telescopic track frame, and a driver is arranged at the upper end of the telescopic track frame.

[0017] The second conveying roller is horizontally and fixedly assembled on the upper surface of the lower end of the lifting frame.

[0018] Further, as a preference, the pretreatment assembly includes:

[0019] The third fixing frame is fixedly assembled on the inner wall of the bottom of the bearing shell. A second rotating disk is rotatably arranged on the third fixing frame, and six third conveying rollers are fixedly embedded at the bottom of the second rotating disk.

[0020] Five fourth fixing frames are equidistantly arranged around the second rotating disk and are all fixedly assembled on the inner wall of the bottom of the bearing shell. A sliding track frame is fixedly arranged on each fourth fixing frame, and a pretreatment instrument is slidably arranged on each sliding track frame.

[0021] Further, as a preference, the five pretreatment instruments have different functions and can respectively remove impurities, clean, dry, control the temperature and control the humidity for the sampling bottles.

[0022] Further, as a preference, the sampling auxiliary assembly includes:

[0023] The fifth fixing frame is fixedly assembled on one side of the sample storage compartment. A vertical track is arranged on the fifth fixing frame, and a sliding block is slidably arranged thereon. A driving motor is fixedly assembled on the sliding block, and a connecting fixing plate is fixedly assembled on one side of the driving motor.

[0024] A variable-diameter synchronous pulley is coaxially and fixedly assembled on the output shaft of a driving motor, and a first lead screw is coaxially and fixedly assembled at the lower end of the variable-diameter synchronous pulley. A fixed suction cup is fixedly assembled at the lower end of the first lead screw, and a piston-type lifting block is threadedly assembled on the first lead screw.

[0025] A fixed synchronous pulley is rotatably assembled at the lower end of the connecting fixing plate. A second lead screw is fixedly assembled at the lower end of the fixed synchronous pulley, and a synchronous lifting block is helically assembled on the second lead screw.

[0026] An air inlet pipe has one end passing through the piston-type lifting block and arranged below it, and the other end passing through the synchronous lifting block and provided with an air vent.

[0027] Furthermore, preferably, the variable-diameter synchronous pulley is composed of two mirror-fixed first diameter-expanding groups, and anti-detachment blocks are arranged on the non-adjacent sides of the diameter-expanding sliders of the two first diameter-expanding groups.

[0028] Furthermore, preferably, the synchronous lifting block is composed of two mirror-fixed second diameter-expanding groups, and an elastic sealing layer is arranged on the circumferential sides of the two second diameter-expanding groups.

[0029] Compared with the prior art, the present invention provides a building engineering air environment detection device, which has the following beneficial effects:

[0030] In the present invention, the sampling bottle selection component is provided with a variety of different types of sampling bottles, and a suitable sampling bottle can be selected for sampling according to the type of pollutants to be detected and external conditions, so as to ensure the authenticity and effectiveness of the samples in the sampling bottle to the greatest extent, and at the same time improve the accuracy of the detection results.

[0031] In the present invention, the pretreatment component can perform pretreatment work on the selected sampling bottle to prevent impurities in it from affecting the detection results, and at the same time control the temperature and humidity of the sampling bottle to make it consistent with the external temperature and humidity, preventing the air sample in the sampling bottle from changing due to the temperature and humidity difference inside and outside the sampling bottle, thereby affecting the experimental results.

[0032] In the present invention, the positioning and sampling component can send the sampling bottle to a specified height position for air sampling work, and move to a specified position for detection work after sampling. At the same time, the telescopic track frame on it can enable the device to have a larger sampling range, thereby improving the practicability of the device.

[0033] In the present invention, the provided sampling auxiliary component can expel the air in the sampling bottle to the greatest extent, and use the piston method to ensure the purity of the sampled sample. At the same time, the sampling auxiliary component will be adjusted according to the specified sampling range and sampling volume at the sampling point, and the transmission ratio of the variable-diameter synchronous pulley and the fixed synchronous pulley, so that the device can evenly sample the air within the range during the sampling process, thereby avoiding the situation of low sample pollutants in the traditional sampling method. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic structural diagram of an air environment detection device for construction projects;

[0035] Figure 2 It is a schematic internal structural diagram of an air environment detection device for construction projects;

[0036] Figure 3 It is a schematic structural diagram of the sampling bottle selection component;

[0037] Figure 4 It is a schematic structural diagram of the positioning sampling component;

[0038] Figure 5 It is a schematic structural diagram of the pretreatment component;

[0039] Figure 6 It is a schematic structural diagram of the sampling auxiliary component;

[0040] Figure 7 It is an enlarged schematic diagram of the lower end of the sampling auxiliary component;

[0041] Figure 8 It is a disassembled schematic diagram of the variable-diameter synchronous pulley and the piston-type lifting block structure;

[0042] In the figure: 1, bearing shell; 2, fixing frame; 3, hydraulic cylinder; 4, traveling wheel; 5, sampling bottle selection component; 6, positioning and sampling component; 7, pretreatment component; 8, sampling assistance component; 9, air detection component; 10, robotic arm; 11, sample storage compartment; 51, first fixing frame; 52, first rotating disc; 53, first conveying roller; 54, second fixing frame; 55, sampling bottle placer; 56, sampling bottle aligner; 57, sampling bottle; 61, telescopic track frame; 62, lifting frame; 63, lifting cable reel; 64, driver; 65, second conveying roller; 71, third fixing frame; 72, second rotating disc; 73, third conveying roller; 74, fourth fixing frame; 75, sliding track frame; 76, pretreatment instrument; 81, fifth fixing frame; 82, sliding block; 83, driving motor; 84, connecting fixing plate; 85, variable diameter synchronous pulley; 86, fixed synchronous pulley; 87, first lead screw; 88, second lead screw; 89, piston type lifting block; 810, synchronous lifting block; 811, fixed suction cup; 812, intake pipe; 813, ventilation port; 814, first diameter expansion group; 815, anti - detachment block; 816, second diameter expansion group; 817, elastic sealing layer. Pipe; 813, ventilation port; 91, fixed disc; 92, rotating detector; 93, gas transmission connection port. Detailed implementation mode

[0043] Please refer to Figures 1 to 8 , the present invention provides an air environment detection device for construction engineering, including:

[0044] A bearing shell 1, on the upper end of the outer side surface of which a fixing frame 2 is fixedly assembled, six traveling wheels 4 are fixedly arranged on the fixing frame 2, and a hydraulic cylinder 3 is arranged on each traveling wheel 4;

[0045] A positioning and sampling component 6, fixedly assembled in the middle of the inner wall at the bottom side of the bearing shell 1, and a sampling bottle selection component 5 and a pretreatment component 7 are respectively arranged at both ends of the positioning and sampling component 6, and both the sampling bottle selection component 5 and the pretreatment component 7 are fixedly arranged on the inner wall at the bottom of the bearing shell 1;

[0046] A sample storage compartment 11, placed above the pretreatment component 7, horizontally fixedly assembled on the side wall of the bearing shell 1, and a sampling assistance component 8 is fixedly assembled on one side of the sample storage compartment 11 adjacent to the positioning and sampling component 6;

[0047] An air detection component 9, placed above the sampling bottle selection component 5, and horizontally fixedly assembled on the side wall of the bearing shell 1;

[0048] Robotic arms 10, two groups are arranged in a mirror image, and are fixedly assembled on the positioning and sampling component 6;

[0049] As a preferred embodiment, the hydraulic cylinder 3 can specifically raise and lower a certain traveling wheel 4, thereby changing the overall center of the device, so that it can adapt to complex and changeable detection environments and achieve the detection purpose more efficiently. The sampling bottle selection component 5 includes a variety of different types of sampling bottles 57. According to the type of pollutants to be detected and the external conditions, a suitable sampling bottle 57 can be selected for sampling, thereby ensuring the authenticity and effectiveness of the sample in the sampling bottle 57 to the greatest extent, while improving the accuracy of the detection results. The pretreatment component 7 can pretreat the selected sampling bottle 57 to prevent the impurities therein from affecting the detection results, and at the same time control the temperature and humidity of the sampling bottle 57 (to keep it consistent with the external temperature and humidity) to prevent the sampling bottle from being damaged. The difference in temperature and humidity inside and outside the sample bottle 57 causes the air sample inside to change, thereby affecting the experimental results. The positioning sampling component 6 can send the sampling bottle to a position at a specified height for air sampling, and move it to a specified position for detection after sampling is completed. The sampling auxiliary component 8 can exhaust the air in the sampling bottle 57 to the greatest extent, and use a piston to ensure the purity of the sample. The air detection component 9 includes multiple groups of different types of detectors, which can perform multiple tests on air samples at one time, thereby improving the detection efficiency. The robotic arm 10 is used to process the sampling bottle 57 after the detection is completed (sealing the sample or returning it to the original position), and the sample placement cabin 11 can retain samples for certain special requirements, thereby facilitating follow-up of subsequent tests.

[0050] Further, the sampling bottle selection component 5 includes:

[0051] A first fixed frame 51 is fixedly mounted on the inner wall of the bottom of the carrying shell 1. A first rotating disk 52 is rotatably arranged on the first fixed frame 51. Four first conveying rollers 53 are fixedly embedded at the bottom of the first rotating disk 52.

[0052] Three second fixing frames 54 are arranged at equal intervals around the first rotating disk 52, and are all fixedly mounted on the inner wall of the bottom of the carrying shell 1. A sampling bottle centralizer 56 and a sampling bottle placer 55 are fixedly arranged on each second fixing frame 54. The sampling bottle centralizer 56 is connected to the sampling bottle placer 55, and the other end of the sampling bottle centralizer 56 is connected to the first fixing frame 51;

[0053] As a preferred embodiment, the sampling bottle placer 55 is arranged in an arc shape, which can effectively prevent the upper sampling bottle 57 from falling after the lower sampling bottle 57 is taken out, thereby causing damage to the sampling bottle 57. At the same time, the sampling bottle 57 in the sampling bottle placer 55 is placed horizontally to further ensure safety. The sampling bottle straightener 56 makes the horizontally placed sampling bottle 57 become vertically placed and send it to the specified position.

[0054] Furthermore, a plurality of sampling bottles 57 are placed in each of the sampling bottle holders 55, and the sampling bottles 57 in different sampling bottle holders 55 are made of different materials.

[0055] As a preferred embodiment, the sampling bottle selection component 5 includes various types of sampling bottles 57. Appropriate sampling bottles 57 can be selected according to the type of pollutants to be detected and external conditions for sampling work, thereby ensuring the authenticity and effectiveness of the samples in the sampling bottles 57 to the greatest extent and improving the accuracy of the detection results. For example, the sampling bottles 57 made of plastic are light, easy to carry and transport, and have low raw material costs, suitable for mass production. At the same time, they are inert to certain chemicals and are not prone to chemical reactions. However, they may have gas penetration problems, affecting the sample purity, and have poor high-temperature resistance, not suitable for high-temperature environments. At the same time, they may deform or age under the action of certain chemicals.

[0056] Furthermore, the positioning and sampling component 6 includes:

[0057] A telescopic track frame 61, fixedly assembled on the inner wall of the bottom of the carrier shell 1. An elevator frame 62 is slidably arranged inside the telescopic track frame 61. An elevator cable reel 63 is arranged between the upper end of the elevator frame 62 and the telescopic track frame 61, and a driver 64 is arranged at the upper end of the telescopic track frame 61.

[0058] A second conveying roller 65 is horizontally and fixedly assembled on the upper surface of the lower end of the elevator frame 62.

[0059] As a preferred embodiment, the positioning and sampling component 6 can send the sampling bottle to a specified height for air sampling work, and move to a specified position for detection work after sampling. At the same time, the telescopic track frame 61 can enable the device to have a larger sampling range, thereby improving the practicality of the device.

[0060] Furthermore, the pretreatment component 7 includes:

[0061] A third fixing frame 71, fixedly assembled on the inner wall of the bottom of the carrier shell 1. A second rotating disk 72 is rotatably arranged on the third fixing frame 71, and six third conveying rollers 73 are fixedly embedded at the bottom of the second rotating disk 72.

[0062] Five fourth fixing frames 74 are arranged at equal intervals around the second rotating disk 72, all fixedly assembled on the inner wall of the bottom of the carrier shell 1. A sliding track frame 75 is fixedly arranged on each of the fourth fixing frames 74, and a pretreatment instrument 76 is slidably arranged on each of the sliding track frames 75.

[0063] Further, the five pretreatment instruments 76 are provided with different functions, which can respectively remove impurities, clean, dry, control temperature and control humidity for the sampling bottle 57;

[0064] As a preferred embodiment, the pretreatment assembly 7 can perform pretreatment work on the selected sampling bottle 57 to prevent impurities therein from affecting the test results. At the same time, the temperature and humidity of the sampling bottle 57 are controlled (to make it consistent with the external temperature and humidity) to prevent the air sample inside the sampling bottle 57 from changing due to the temperature and humidity difference inside and outside the sampling bottle 57, thereby affecting the experimental results.

[0065] Further, the sampling auxiliary assembly 8 includes:

[0066] A fifth fixing frame 81, fixedly assembled on one side of the sample storage compartment 11. A vertical track is provided on the fifth fixing frame 81, on which a sliding block 82 is slidably arranged. A driving motor 83 is fixedly assembled on the sliding block 82, and a connecting fixing plate 84 is fixedly assembled on one side of the driving motor 83;

[0067] A variable-diameter synchronous pulley 85 is coaxially fixedly assembled on the output shaft of the driving motor 83, and a first lead screw 87 is coaxially fixedly assembled at the lower end of the variable-diameter synchronous pulley 85. A fixed suction cup 811 is fixedly assembled at the lower end of the first lead screw 87, and a piston-type lifting block 89 is threadedly assembled on the first lead screw 87;

[0068] A fixed synchronous pulley 86 is rotatably assembled at the lower end of the connecting fixing plate 84. A second lead screw 88 is fixedly assembled at the lower end of the fixed synchronous pulley 86, and a synchronous lifting block 810 is helically assembled on the second lead screw 88;

[0069] An air inlet pipe 812, one end of which passes through the piston-type lifting block 89 and is arranged below it, and the other end passes through the synchronous lifting block 810 and is provided with a ventilation port 813;

[0070] As a preferred embodiment, during use, the sampling auxiliary assembly 8 is pushed into the sampling bottle 57 to be used through the sliding block 82 in the way shown in the figure. The fixed suction cup 811 will adsorb on the bottom of the sampling bottle 57. At the same time, the piston-type lifting block 89 expands, making itself into a piston, making the environment below it a closed environment, and squeezing the air in this closed environment through the air inlet pipe 812 during the expansion process, which can discharge the air in the sampling bottle 57 to the greatest extent and ensure the purity of the sampling sample by using the piston method. Then, the sampling auxiliary assembly 8 will adjust according to the sampling range and sampling volume specified at the sampling point, and the transmission ratio of the variable-diameter synchronous pulley 85 and the fixed synchronous pulley 86, so that the device can evenly sample the air within the range during the sampling process, thus avoiding the situation of low sample pollutants in the traditional sampling method.

[0071] Furthermore, the variable diameter synchronous wheel 85 is composed of two first diameter expansion groups 814 fixed in mirror image, and anti-slip blocks 815 are provided on non-adjacent sides of the expansion sliders of the two first diameter expansion groups 814.

[0072] Furthermore, the synchronous lifting block 810 is composed of two second diameter expansion groups 816 fixed in mirror image, and elastic sealing layers 817 are arranged around the two second diameter expansion groups 816 .

[0073] The specific implementation includes the following steps: first determine the number of sampling points within the range, the sampling range, and the pollutants to be detected, and then plan a suitable route and a suitable type of sampling bottle 57. After arriving below the sampling point, the sampling bottle selection component 5 selects the sampling bottle 57 of the material that meets the requirements, and transports it to the pretreatment component 7 through the positioning sampling component 6. The pretreatment component 7 will remove impurities, clean, and dry the sampling bottle 57, and control the temperature and humidity according to the external temperature and humidity. After the sampling auxiliary component 8 is installed, the sampling auxiliary component 8 will separate the installed position, and the separated components The sampling bottle 57 is sent into the positioning sampling component 6. The positioning sampling component 6 will send the sampling bottle 57 to the specified height for sampling and adjust it according to the sampling requirements. After the sampling is completed, the positioning sampling component 6 will move the sampling bottle 57 to the plane where the air detection component 9 is located. The air detection component 9 will conduct targeted detection of the air sample and upload the detection results. Then the robotic arm 10 will clamp the sampling bottle 57, reset the components installed by the sampling auxiliary component 8, and seal the sampling bottle 57 that needs to retain samples. The sampling bottle 57 that does not need to retain samples is sent to the corresponding position of the sampling bottle selection component 5.

[0074] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A construction engineering air environment detection device, characterized in that: include: A load-bearing shell (1) has a fixed frame (2) fixedly mounted on the upper end of its outer surface, six traveling wheels (4) fixedly mounted on the fixed frame (2), and each traveling wheel (4) is provided with a hydraulic cylinder (3); A positioning sampling component (6) is fixedly mounted in the middle of the inner wall at the bottom of the carrying shell (1), and a sampling bottle selection component (5) and a pretreatment component (7) are respectively arranged at both ends of the positioning sampling component (6), and the sampling bottle selection component (5) and the pretreatment component (7) are both fixedly arranged on the inner wall at the bottom of the carrying shell (1); A sample storage chamber (11) is placed above the pretreatment assembly (7) and is horizontally fixedly mounted on the side wall of the carrying shell (1), and a sampling auxiliary assembly (8) is fixedly mounted on one side of the sample storage chamber (11) adjacent to the positioning sampling assembly (6); An air detection component (9) is placed above the sampling bottle selection component (5) and is horizontally fixedly mounted on the side wall of the carrying shell (1); The mechanical arms (10) are arranged in two groups in a mirror-like manner and are fixedly mounted on the positioning sampling assembly (6).

2. A construction engineering air environment detection device according to claim 1, characterized in that: The sampling bottle selection component (5) comprises: A first fixed frame (51) is fixedly mounted on the inner wall of the bottom of the carrying shell (1); a first rotating disk (52) is rotatably arranged on the first fixed frame (51); four first conveying rollers (53) are fixedly embedded at the bottom of the first rotating disk (52); Three second fixing frames (54) are arranged at equal intervals around the first rotating disk (52), and are all fixedly mounted on the inner wall of the bottom of the carrying shell (1). A sampling bottle centralizer (56) and a sampling bottle placer (55) are fixedly arranged on each second fixing frame (54). The sampling bottle centralizer (56) is connected to the sampling bottle placer (55), and the other end of the sampling bottle centralizer (56) is connected to the first fixing frame (51).

3. A construction engineering air environment detection device according to claim 2, characterized in that: A plurality of sampling bottles (57) are placed in each of the sampling bottle placement devices (55), and the materials of the sampling bottles (57) in different sampling bottle placement devices (55) are different.

4. The construction engineering air environment detection device according to claim 1, characterized in that: The positioning sampling component (6) comprises: A retractable track frame (61) is fixedly mounted on the inner wall of the bottom of the carrying shell (1), a lifting frame (62) is slidably arranged inside the retractable track frame (61), a lifting cable disc (63) is arranged between the upper end of the lifting frame (62) and the retractable track frame (61), and a driver (64) is arranged at the upper end of the retractable track frame (61); The second conveying roller (65) is horizontally fixedly mounted on the upper surface of the lower end of the lifting frame (62).

5. The construction engineering air environment detection device according to claim 1, characterized in that: The pre-processing component (7) comprises: A third fixed frame (71) is fixedly mounted on the inner wall of the bottom of the carrying shell (1); a second rotating disk (72) is rotatably arranged on the third fixed frame (71); six third conveying rollers (73) are fixedly embedded at the bottom of the second rotating disk (72); Five fourth fixed frames (74) are arranged at equal intervals around the second rotating disk (72), and are all fixedly mounted on the inner wall of the bottom of the carrying shell (1). A sliding track frame (75) is fixedly arranged on each fourth fixed frame (74), and a pretreatment instrument (76) is slidably arranged on each sliding track frame (75).

6. A construction engineering air environment detection device according to claim 5, characterized in that: The five pre-treatment instruments (76) have different functions, and can respectively remove impurities, clean, dry, control temperature and control humidity for the sampling bottle (57).

7. The construction engineering air environment detection device according to claim 1, characterized in that: The sampling auxiliary component (8) comprises: a fifth fixing frame (81), fixedly mounted on one side of the sample storage chamber (11); a vertical track is arranged on the fifth fixing frame (81), a sliding block (82) is slidably arranged on the track, a driving motor (83) is fixedly mounted on the sliding block (82), and a connecting fixing plate (84) is fixedly mounted on one side of the driving motor (83); A variable diameter synchronous wheel (85) is coaxially fixedly mounted on the output shaft of the driving motor (83), and a first lead screw (87) is coaxially fixedly mounted on the lower end of the variable diameter synchronous wheel (85), a fixed suction cup (811) is fixedly mounted on the lower end of the first lead screw (87), and a piston-type lifting block (89) is threadedly mounted on the first lead screw (87); A fixed synchronous wheel (86) is rotatably mounted on the lower end of the connecting and fixing plate (84); a second lead screw (88) is fixedly mounted on the lower end of the fixed synchronous wheel (86); and a synchronous lifting block (810) is spirally mounted on the second lead screw (88); The air inlet pipe (812) has one end passing through the piston-type lifting block (89) and is arranged below the piston-type lifting block (89), and the other end passing through the synchronous lifting block (810) and being provided with a vent (813).

8. A construction engineering air environment detection device according to claim 7, characterized in that: The variable diameter synchronous wheel (85) is composed of two first diameter expansion groups (814) fixed in mirror image, and anti-slip blocks (815) are provided on non-adjacent sides of the expansion slide blocks of the two first diameter expansion groups (814).

9. The construction engineering air environment detection device according to claim 7, characterized in that: The synchronous lifting block (810) is composed of two second diameter expansion groups (816) fixed in mirror image, and elastic sealing layers (817) are arranged around the two second diameter expansion groups (816).

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