A construction engineering air environment detection device

Abstract

The present invention discloses an air environment detection device for a construction project, comprising: a carrying shell, a fixed frame is fixedly assembled on the upper end of the outer surface of the carrying shell, six traveling wheels are fixedly arranged on the fixed frame, and each traveling wheel is provided with a hydraulic cylinder; a positioning sampling component, fixedly assembled on the middle part of the inner wall of the bottom side of the carrying shell, and a sampling bottle selection component and a pretreatment component are respectively arranged at both ends of the positioning sampling component, and the sampling bottle selection component and the pretreatment component are both fixedly arranged on the inner wall of the bottom of the carrying shell; a sample placement cabin, placed above the pretreatment component, fixedly assembled horizontally on the side wall of the carrying shell, and a sampling auxiliary component is fixedly assembled on the side of the sample placement cabin adjacent to the positioning sampling component; an air detection component, placed above the sampling bottle selection component, and fixedly assembled horizontally on the side wall of the carrying shell; two groups of mechanical arms are arranged in a mirror image and fixedly assembled on the positioning sampling component.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental detection, and in particular to a construction engineering air environment detection device. Background Art

[0002] The primary purpose of air quality testing for construction projects is to ensure that the air quality of the construction and use environments meets national standards and industry regulations, thereby protecting the health and safety of personnel. This includes assessing the concentration of pollutants in indoor air to determine whether any levels exceed standards or pose potential health risks.

[0003] However, existing detection equipment can only detect the concentration of specific pollutants and lacks autonomy. At the same time, existing detection equipment cannot effectively remove the original air inside it before sampling, thereby polluting the sampled air and affecting the detection results. In addition, the existing detection equipment will remain stationary at the sampling point until the sampling is completed. Such a long period of sampling at the same point will result in a low pollutant concentration at that point.

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

[0005] To achieve the above objectives, the present invention provides the following technical solution: a construction engineering air environment detection device, comprising:

[0006] The upper end of the outer surface of the bearing shell is fixedly equipped with a fixed frame, and six traveling wheels are fixedly installed on the fixed frame, and each traveling wheel is provided with a hydraulic cylinder;

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

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

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

[0010] The robotic arms are provided in two groups in a mirror-like manner and are fixedly assembled on the positioning and sampling assembly.

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

[0012] a first fixing frame, fixedly mounted on the inner wall of the bottom of the carrying shell, a first rotating disk being rotatably mounted on the first fixing frame, and four first conveying rollers being fixedly embedded on the bottom of the first rotating disk;

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

[0014] Furthermore, preferably, a plurality of sampling bottles are placed in each of the sampling bottle placers, and the materials of the sampling bottles in different sampling bottle placers are different.

[0015] Furthermore, preferably, the positioning sampling component includes:

[0016] A retractable track frame is fixedly mounted on the inner wall of the bottom of the carrying shell, a lifting frame is slidably provided inside the retractable track frame, a lifting cable disc is provided between the upper end of the lifting frame and the retractable track frame, and a driver is provided at the upper end of the retractable track frame;

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

[0018] Furthermore, preferably, the pre-processing component includes:

[0019] a third fixing frame, fixedly mounted on the inner wall of the bottom of the carrying shell, wherein a second rotating disk is rotatably mounted on the third fixing frame, and six third conveying rollers are fixedly embedded on the bottom of the second rotating disk;

[0020] There are five fourth fixing racks arranged at equal intervals around the second rotating disk, all of which are fixedly assembled on the inner wall of the bottom of the carrying shell. Each fourth fixing rack is fixedly provided with a sliding track rack, and each sliding track rack is slidably provided with a pretreatment instrument.

[0021] Furthermore, as a preference, the five pretreatment instruments are provided with different functions, which can respectively perform impurity removal, cleaning, drying, temperature control and humidity control for the sampling bottles.

[0022] Furthermore, preferably, the sampling auxiliary component includes:

[0023] A fifth fixing frame is fixedly mounted on one side of the sample storage compartment, the fifth fixing frame is provided with a vertical track, a sliding block is slidably mounted on the track, a driving motor is fixedly mounted on the sliding block, and a connecting fixing plate is fixedly mounted on one side of the driving motor;

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

[0025] A fixed synchronous wheel is rotatably mounted on the lower end of the connecting fixed plate, a second lead screw is fixedly mounted on the lower end of the fixed synchronous wheel, and a synchronous lifting block is spirally mounted on the second lead screw;

[0026] One end of the air inlet pipe passes through the piston-type lifting block and is arranged below the piston-type lifting block, and the other end passes through the synchronous lifting block and is provided with a vent.

[0027] Furthermore, preferably, the variable diameter synchronous wheel is composed of two first diameter expansion groups fixed in a mirror image, and anti-slip blocks are provided on non-adjacent sides of the expansion sliders of the two first diameter expansion groups.

[0028] Furthermore, preferably, the piston-type lifting block is composed of two second diameter-expanding groups fixed in a mirror image, and an elastic sealing layer is provided on the circumference of the two second diameter-expanding groups.

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

[0030] In the present invention, the sampling bottle selection component includes a variety of different types of sampling bottles, and suitable sampling bottles can be selected for sampling according to the type of pollutants to be detected and external conditions, thereby ensuring the authenticity and effectiveness of the samples in the sampling bottles to the greatest extent, while improving the accuracy of the test results.

[0031] In the present invention, the pretreatment component provided can perform pretreatment on the selected sampling bottle to prevent the impurities inside it from affecting the test results. At the same time, the temperature and humidity of the sampling bottle can be controlled to keep it consistent with the external temperature and humidity, to prevent the difference in temperature and humidity inside and outside the sampling bottle from causing changes in the air sample inside, thereby affecting the experimental results.

[0032] In the present invention, the positioning sampling assembly 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 the sampling is completed. At the same time, the retractable track frame on it can enable the device to have a larger sampling range, thereby improving the practicality of the device.

[0033] In the present invention, the sampling auxiliary component provided can exhaust 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 sampling range and sampling volume specified by the sampling point. The transmission ratio of the variable-diameter synchronous wheel and the fixed synchronous wheel enables the device to evenly sample the air within the range during the sampling process, thereby avoiding the situation where the sample pollutants are too low in the traditional sampling method. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0035] Figure 2 This is a schematic diagram of the internal structure of a construction engineering air environment detection device;

[0036] Figure 3 Schematic diagram of component structure selection for sampling bottle;

[0037] Figure 4 This is a schematic diagram of the positioning sampling component structure;

[0038] Figure 5 It is a schematic diagram of the structure of the pre-processing component;

[0039] Figure 6 This is a schematic diagram of the sampling auxiliary component structure;

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

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

[0042] In the figure: 1, carrying shell; 2, fixed frame; 3, hydraulic cylinder; 4, traveling wheel; 5, sampling bottle selection assembly; 6, positioning sampling assembly; 7, pretreatment assembly; 8, sampling auxiliary assembly; 9, air detection assembly; 10, mechanical arm; 11, sample placement cabin; 51, first fixed frame; 52, first rotating disk; 53, first conveyor roller; 54, second fixed frame; 55, sampling bottle placer; 56, sampling bottle centralizer; 57, sampling bottle; 61, retractable track frame; 62, lifting frame; 63, lifting cable disc; 64, drive; 65, second conveyor roller; 71, third fixed frame Fixed frame; 72, second rotating disk; 73, third conveyor roller; 74, fourth fixed frame; 75, sliding track frame; 76, pre-treatment instrument; 81, fifth fixed frame; 82, sliding block; 83, drive motor; 84, connecting fixed 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, air inlet pipe; 813, air vent; 814, first expansion group; 815, anti-slip block; 816, second expansion group; 817, elastic sealing layer; 813, air vent; 91, fixed plate; 92, rotation detector; 93, air supply connection port. DETAILED DESCRIPTION

[0043] See also Figures 1 to 8 The present invention provides a construction engineering air environment detection device, comprising:

[0044] The upper end of the outer surface of the bearing shell 1 is fixedly mounted with a fixed frame 2, and six traveling wheels 4 are fixedly mounted on the fixed frame 2, and each traveling wheel 4 is provided with a hydraulic cylinder 3;

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

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

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

[0048] The robotic arms 10 are provided in two mirror-image configurations and are fixedly mounted on the positioning and sampling assembly 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 complete 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, and improving the accuracy of the test results. The pretreatment component 7 can pretreat the selected sampling bottle 57 to prevent the impurities therein from affecting the test 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 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 the 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 contains 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). The sample placement cabin 11 can retain samples for certain special requirements, thereby facilitating follow-up of subsequent tests.

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

[0051] A first fixing frame 51 is fixedly mounted on the inner wall of the bottom of the carrying shell 1. A first rotating disk 52 is rotatably mounted on the first fixing frame 51. Four first conveying rollers 53 are fixedly embedded on 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 fixedly assembled on the inner wall of the bottom of the carrying shell 1. Each second fixing frame 54 is fixedly provided with a sampling bottle centralizer 56 and a sampling bottle placer 55. 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 bottles 57 in the sampling bottle placer 55 are placed horizontally to further ensure safety. The sampling bottle straightener 56 makes the horizontally placed sampling bottle 57 become vertically placed and sent to the designated position.

[0054] Furthermore, 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;

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

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

[0057] A retractable track frame 61 is fixedly mounted on the inner wall of the bottom of the carrier shell 1. A lifting frame 62 is slidably provided inside the retractable track frame 61. A lifting cable disc 63 is provided between the upper end of the lifting frame 62 and the retractable track frame 61. A driver 64 is provided at the upper end of the retractable track frame 61.

[0058] The second conveying roller 65 is horizontally fixedly mounted on the upper surface of the lower end of the lifting frame 62;

[0059] As a preferred embodiment, 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 the sampling is completed. At the same time, the retractable track frame 61 can enable the device to have a larger sampling range, thereby improving the practicality of the device.

[0060] Furthermore, the pre-processing component 7 includes:

[0061] A third fixing frame 71 is fixedly mounted on the inner wall of the bottom of the carrying shell 1. A second rotating disk 72 is rotatably mounted on the third fixing frame 71. Six third conveying rollers 73 are fixedly embedded on the bottom of the second rotating disk 72.

[0062] There are five fourth fixed frames 74 arranged at equal intervals around the second rotating disk 72, all of which are fixedly assembled on the inner wall of the bottom of the supporting shell 1. Each fourth fixed frame 74 is fixedly provided with a sliding track frame 75, and each sliding track frame 75 is slidably provided with a pretreatment instrument 76.

[0063] Furthermore, the five pre-treatment instruments 76 are provided with different functions, and can respectively perform impurity removal, cleaning, drying, temperature control, and humidity control for the sampling bottles 57;

[0064] As a preferred embodiment, the pretreatment component 7 can perform pretreatment on the selected sampling bottle 57 to prevent impurities therein from affecting the test 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 difference in temperature and humidity inside and outside the sampling bottle 57 from causing changes in the air sample inside, thereby affecting the experimental results.

[0065] Furthermore, the sampling auxiliary component 8 includes:

[0066] A fifth fixing frame 81 is fixedly mounted on one side of the sample storage chamber 11. The fifth fixing frame 81 is provided with a vertical track on which a sliding block 82 is slidably mounted. A driving motor 83 is fixedly mounted on the sliding block 82. A connecting fixing plate 84 is fixedly mounted on one side of the driving motor 83.

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

[0068] A fixed synchronous wheel 86 is rotatably mounted on the lower end of the connecting fixed plate 84. A second screw 88 is fixedly mounted on the lower end of the fixed synchronous wheel 86. A synchronous lifting block 810 is spirally mounted on the second screw 88.

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

[0070] As a preferred embodiment, when in use, the sampling auxiliary component 8 is pushed into the sampling bottle 57 to be used through the sliding block 82 in the manner shown in the figure, and the fixed suction cup 811 will be adsorbed on the bottom of the sampling bottle 57. At the same time, the piston-type lifting block 89 expands, turning itself into a piston, and turning the area below it into a closed environment. During the expansion process, the air in the closed environment is squeezed out through the air inlet pipe 812, which can discharge the air in the sampling bottle 57 to the greatest extent, and use the piston method to ensure the purity of the sample. The sampling auxiliary component 8 will then be adjusted according to the sampling range and sampling volume specified by the sampling point. The transmission ratio of the variable-diameter synchronous wheel 85 and the fixed synchronous wheel 86 enables the device to evenly sample the air within the range during the sampling process, thereby avoiding the situation where the sample pollutants are too low in the traditional sampling method.

[0071] Furthermore, the variable diameter synchronous wheel 85 is composed of two first diameter expanding 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 expanding groups 814.

[0072] Furthermore, the piston-type lifting block 89 is composed of two second diameter-expanding groups 816 fixed in mirror image, and elastic sealing layers 817 are provided around the two second diameter-expanding groups 816 .

[0073] When it is implemented specifically, the following steps are included: 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 the type of sampling bottle 57. After arriving at 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 performs targeted detection on the air sample and uploads 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 be sampled. The sampling bottle 57 that does not need to be sampled is sent to the corresponding position of the sampling bottle selection component 5.

[0074] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A construction engineering air environment detection device, characterized by: include: A supporting shell (1) is fixedly mounted with a fixed frame (2) on the upper end of its outer surface, six traveling wheels (4) are fixedly mounted on the fixed frame (2), and each traveling wheel (4) is provided with a hydraulic cylinder (3); A positioning sampling assembly (6) is fixedly assembled in the middle of the inner wall of the bottom side of the carrying shell (1), and a sampling bottle selection assembly (5) and a pretreatment assembly (7) are respectively provided at both ends of the positioning sampling assembly (6), and the sampling bottle selection assembly (5) and the pretreatment assembly (7) are both fixedly arranged on the inner wall of the bottom side of the carrying shell (1); A sample storage cabin (11) is placed above the pretreatment component (7) and is fixedly assembled horizontally on the side wall of the carrying shell (1), and a sampling auxiliary component (8) is fixedly assembled on a side of the sample storage cabin (11) adjacent to the positioning sampling component (6); An air detection assembly (9) is placed above the sampling bottle selection assembly (5) and is horizontally fixedly assembled on the side wall of the carrying shell (1); Two sets of mechanical arms (10) are arranged in mirror image and fixedly assembled on the positioning sampling assembly (6); The sampling auxiliary component (8) comprises: A fifth fixing frame (81) is fixedly mounted on one side of the sample storage cabin (11); a vertical track is provided on the fifth fixing frame (81), a sliding block (82) is slidably mounted 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 assembled on the output shaft of the driving motor (83), and a first screw (87) is coaxially fixedly assembled on the lower end of the variable diameter synchronous wheel (85), a fixed suction cup (811) is fixedly assembled on the lower end of the first screw (87), and a piston-type lifting block (89) is threadedly assembled on the first screw (87); A fixed synchronous wheel (86) is rotatably mounted on the lower end of the connecting fixed plate (84); a second 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 screw (88); An 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 provided with a vent (813); The sampling auxiliary component (8) adjusts the transmission ratio of the variable diameter synchronous wheel (85) and the fixed synchronous wheel (86) according to the sampling range and sampling amount specified by the sampling point; The sampling auxiliary assembly (8) is pushed into the sampling bottle to be used through the sliding block (82), and the fixed suction cup (811) is adsorbed on the bottom of the sampling bottle. At the same time, the piston lifting block (89) expands, turning itself into a piston, and the environment below it becomes a closed environment.

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 mounted on the first fixed frame (51); four first conveying rollers (53) are fixedly embedded on 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 fixedly assembled 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. The 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 provided inside the retractable track frame (61); a lifting cable disc (63) is provided between the upper end of the lifting frame (62) and the retractable track frame (61); and a driver (64) is provided at the upper end of the retractable track frame (61); The second conveying roller (65) is horizontally fixedly assembled 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 mounted on the third fixed frame (71); six third conveying rollers (73) are fixedly embedded on 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 fixedly assembled 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. The construction engineering air environment detection device according to claim 5, characterized in that: The five pre-treatment instruments (76) are provided with different functions, namely, removing impurities, cleaning, drying, controlling temperature and controlling humidity of the sampling bottle (57).

7. The construction engineering air environment detection device according to claim 1, characterized in that: The variable diameter synchronous wheel (85) is composed of two mirror-fixed first diameter expansion groups (814), and the non-adjacent sides of the diameter expansion sliders in the two first diameter expansion groups (814) are provided with anti-slip blocks (815).

8. The construction engineering air environment detection device according to claim 1, characterized in that: The piston-type lifting block (89) is composed of two second diameter-expanding groups (816) fixed in mirror images, and elastic sealing layers (817) are provided around the two second diameter-expanding groups (816).

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