Air tightness detection device for civil air defense engineering

Abstract

The utility model discloses an air tightness detection device for civil air defense engineering. The air tightness detection device comprises a bottom plate, a detection host, a detector, a powerful fan, a first supporting leg and a second supporting leg, the detection host and the powerful fan are installed on the bottom plate, the first supporting leg is installed at the bottom of the bottom plate, and the axis of the first supporting leg is parallel to the plane where the upper end face of the bottom plate is located. The axis of the second supporting leg is perpendicular to the plane where the lower end face of the bottom plate is located. The powerful fan is connected with an air inlet hose, the air inlet hose is sleeved with a detector, the detection host is provided with a display screen and control keys, and the detection host, the detector and the powerful fan are matched for air tightness detection. According to the utility model, two kinds of supporting legs are arranged, and different supporting legs are used for supporting under different working conditions, so that the detection device can adapt to different operation spaces and can be suitable for narrow working spaces.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense projects, in particular to an air tightness detection device for civil air defense projects. Background Art

[0002] Civil air defense projects refer to underground protective structures built independently for the purpose of sheltering personnel and supplies, providing civil air defense command, and providing medical assistance during wartime, as well as basements built in conjunction with above-ground structures for air defense during wartime. Civil air defense projects are crucial facilities for preventing sudden enemy attacks, effectively sheltering personnel and supplies, and preserving wartime potential. A search revealed prior art, including Chinese Patent Application No. 201822165856.0, which discloses a civil air defense project air tightness tester. The tester comprises wheels positioned at the rear of the chassis base, a variable-frequency high-pressure blower mounted at the lower portion of the chassis, an orifice flowmeter connected to the air supply duct, and a detector mounted on the chassis. This utility model is easy to use and has excellent performance. By replacing different flow collection devices, both the detection range and accuracy can be met. However, this technology still has drawbacks. In some locations with narrow walls or confined spaces, it is difficult for personnel to view the test data on the screen. Utility Model Content

[0003] Purpose of the invention: In view of the above shortcomings, the utility model provides an air tightness detection device for civil air defense projects.

[0004] Technical solution: In order to solve the above problems, the utility model adopts an air tightness detection device for civil air defense projects, including a base plate, a detection host, a detector, a powerful fan, a first support leg, and a second support leg; the detection host and the powerful fan are installed on the base plate, the first support leg is installed on the bottom of the base plate, and the axis of the first support leg is parallel to the plane where the upper end surface of the base plate is located; the second support leg is installed on the lower end surface of the base plate, and the axis of the second support leg is perpendicular to the plane where the lower end surface of the base plate is located; the powerful fan is connected to an air inlet hose, and a detector is provided on the air inlet hose, and the detection host is provided with a display screen and control buttons, and the detection host, the detector, and the powerful fan are used together for air tightness detection.

[0005] Furthermore, a filter is provided on one side of the powerful blower, and the filter is provided with a high-efficiency filter layer, an activated carbon layer, a catalyst layer, and an enzyme-containing sterilization filter layer stacked in sequence.

[0006] Furthermore, the detector is provided with an atmospheric pressure transmitter and a temperature and humidity transmitter, and the detection host is used to receive signals from the detector and control the start and stop and wind speed of the powerful fan.

[0007] Furthermore, a buckle is provided on the bottom plate, and the end of the air inlet hose not connected to the powerful blower is snapped into the buckle.

[0008] Furthermore, a handle is provided on the top of the base plate, and an anti-slip cover is installed on the handle.

[0009] Furthermore, a first anti-slip pad is provided at the bottom of the first supporting leg, and a second anti-slip pad is provided at the bottom of the second supporting leg.

[0010] Furthermore, outer walls on both sides of the bottom of the base plate are rotatably connected to a rotating shaft, and outer walls of the rotating shaft are rotatably connected to rollers.

[0011] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: (1) by providing two types of support legs, different support legs are used for support under different working conditions, so that the detection device can adapt to different operating spaces and can be used in narrow working spaces; (2) by providing a filter to filter the air intake of the fan, the fan is prevented from being blocked, the fan is ensured to be in good working condition, and the service life of the fan is extended; (3) by providing a handle anti-slip cover and an anti-slip pad, the device is prevented from sliding during use, making the device more stable, reducing the risk of sliding and shaking, avoiding accidental sliding or sliding noise, improving the stability and safety of the device, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the air tightness detection device of the utility model;

[0013] Figure 2 This is a schematic diagram of the rear structure of the air tightness detection device of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the filter of the air tightness detection device of the present utility model;

[0015] In the figure: 1. Base plate; 2. Detection host; 3. Display screen; 4. Control button; 5. Filter; 6. Buckle; 7. Baffle; 8. Detector; 9. Air inlet hose; 10. Powerful fan; 11. Anti-slip cover; 12. Handle; 13. Second anti-slip pad; 14. Second support leg; 15. Roller; 16. First support leg; 17. First anti-slip pad; 18. Rotating shaft; 19. High-efficiency filter layer; 20. Activated carbon layer; 21. Catalyst layer; 22. Enzyme-containing sterilization filter layer. DETAILED DESCRIPTION

[0016] like Figure 1 and Figure 2As shown, an air tightness testing device for civil air defense projects in this embodiment includes a base plate 1, a testing host 2, a detector 8, a powerful blower 10, a first support leg 16, and a second support leg 14. The testing host 2 and the powerful blower 10 are mounted on the base plate 1, with the powerful blower 10 positioned below the testing host 2. The testing host 2 is provided with a display screen 3 and multiple control buttons 4 for human-computer interaction.

[0017] A filter 5 is provided on one side of the powerful fan 10 for filtering the air entering the powerful fan 10 to avoid fan blockage, ensure the fan is in good working condition, and extend the working life of the fan. Figure 3 As shown, the filter 2 is provided with a high-efficiency filter layer 19, an activated carbon layer 20, a catalyst layer 21, and an enzyme-containing sterilization filter layer 22, which are stacked in sequence. The high-efficiency filter layer 19 can filter out large particles of dust and suspended matter in the air; the activated carbon layer 20 can effectively filter out harmful gases, pathogens, and heavy metals such as formaldehyde, benzene, and ammonia; the catalyst layer 21 converts formaldehyde into harmless substances through catalytic decomposition; and the enzyme-containing sterilization filter layer 22 effectively filters and intercepts bacteria and microorganisms. The large amount of high-efficiency natural lysozyme attached to the filter fibers effectively dissolves captured microorganisms and bacteria, achieving the purpose of sterilization and depriving them of the opportunity to reproduce, thereby preventing secondary pollution. The powerful blower 10 is connected to an air inlet hose 9, and a clip 6 is provided on the bottom plate 1. The end of the air inlet hose 9 not connected to the powerful blower 10 is clipped into the clip 6 for storage, preventing the air inlet hose from being damaged by collisions.

[0018] The air inlet hose 9 is fitted with a detector 8, which houses an atmospheric pressure transmitter and a temperature and humidity transmitter for respectively collecting the current ambient atmospheric pressure, temperature, and humidity. The detection host 2 is used to receive signals from the detector 8 and control the start and stop of the powerful blower 10 and the wind speed. For testing of enclosed passages and anti-toxic passages in protective projects with larger areas, the overpressure value is preset via the human-machine interactive display, control buttons, and the detection host. The powerful blower starts operating after receiving the feedback signal from the detection host. The principle of airtightness testing is a mature existing technology and will not be elaborated on here.

[0019] A handle 12 is fixedly connected to the top of the base plate 1, and an anti-slip sleeve 11 is fixedly connected to the outer wall of the handle 12. A rotating shaft 18 is rotatably connected to the outer walls of the two opposite sides of the bottom of the base plate 1, and rollers 15 are rotatably connected to the outer walls of the two rotating shafts 18. The rollers 15 are provided to facilitate the movement of the detection device, and the anti-slip sleeve 11 can prevent the device from slipping during the pushing process, making the device more stable and reducing the risk of sliding and shaking. The first support leg 16 is installed at the bottom of the base plate 1, and a baffle 7 is provided at the bottom of the base plate 1, and the first support leg 16 is installed on the baffle 7. The axis of the first support leg 16 is parallel to the plane where the upper end face of the base plate 1 is located; the second support leg 14 is installed at the lower end face of the base plate 1, and the axis of the second support leg 14 is perpendicular to the plane where the lower end face of the base plate 1 is located. A first anti-slip pad 17 is provided at the bottom of the first support leg 16, and a second anti-slip pad 13 is provided at the bottom of the second support leg 14.

[0020] When the device is placed at a certain angle between walls or in a small space, the staff can lay it down and keep it stable with the second support leg 14. In a spacious space, the device can be placed vertically with the first support leg 16. The vertical placement also makes it easier to transport the device in a storage box. Using different support legs for different working conditions allows the detection device to adapt to different operating spaces. In addition, the anti-skid pad can prevent the device from sliding during use, making the device more stable, reducing the risk of sliding and shaking, and avoiding accidental sliding or sliding noise. The use of anti-skid pads can improve the stability and safety of the device and extend the service life of the device.

Claims

1. An air tightness detection device for civil air defense engineering, characterized in that: The invention comprises a base plate (1), a detection host (2), a detector (8), a powerful blower (10), a first supporting leg (16), and a second supporting leg (14); the detection host (2) and the powerful blower (10) are installed on the base plate (1), the first supporting leg (16) is installed at the bottom of the base plate (1), and the axis of the first supporting leg (16) is parallel to the plane where the upper end face of the base plate (1) is located; the second supporting leg (14) is installed at the lower end face of the base plate (1), and the axis of the second supporting leg (14) is perpendicular to the plane where the lower end face of the base plate (1) is located; the powerful blower (10) is connected to an air inlet hose (9), and the air inlet hose (9) is provided with a detector (8); the detection host (2) is provided with a display screen (3) and a control button (4); the detection host (2), the detector (8), and the powerful blower (10) cooperate to perform air tightness detection.

2. The air tightness detection device for civil air defense engineering according to claim 1, characterized in that: A filter (5) is provided on one side of the powerful blower (10), and a high-efficiency filter layer (19), an activated carbon layer (20), a catalyst layer (21), and an enzyme-containing sterilization filter layer (22) are provided in the filter (5).

3. The air tightness detection device for civil air defense engineering according to claim 1, characterized in that: The detector (8) is provided with an atmospheric pressure transmitter and a temperature and humidity transmitter, and the detection host (2) is used to receive signals from the detector (8) and control the start and stop and wind speed of the powerful fan (10).

4. The air tightness detection device for civil air defense engineering according to claim 1, characterized in that: A buckle (6) is provided on the bottom plate (1), and the end of the air inlet hose (9) not connected to the powerful blower (10) is snapped into the buckle (6).

5. The air tightness detection device for civil air defense engineering according to claim 1, characterized in that: A handle (12) is provided on the top of the base plate (1), and an anti-slip cover (11) is installed on the handle (12).

6. The air tightness detection device for civil air defense engineering according to claim 1, characterized in that: A first anti-slip pad (17) is provided at the bottom of the first supporting leg (16), and a second anti-slip pad (13) is provided at the bottom of the second supporting leg (14).

7. The air tightness detection device for civil air defense engineering according to claim 1, characterized in that: The outer walls on both sides of the bottom of the base plate (1) are rotatably connected to a rotating shaft (18), and the outer wall of the rotating shaft (18) is rotatably connected to a roller (15).

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