A portable indoor air rapid screening device

Abstract

The utility model discloses a portable indoor air rapid screening device, it includes: detection cylinder, its inside fixed gas detection ring seat, and the ring cavity of gas detection ring seat installs infrared gas sensor, the suction head is fixedly connected at the front port of detection cylinder, the suction head cover cap is matched and is pressed in the suction head, and the open end of suction head cover cap adopts the dowel fixed in the annular step of suction head, and the periphery of the sidewall on suction head cover cap front end part is provided with a plurality of side mouths. The utility model device adopts electric cylinder to drive elastic sliding plug assembly to slide forward and backward, to introduce or discharge gas, can accurately control the sliding distance and speed of elastic sliding plug assembly, thereby accurately control the introduction amount and discharge amount of gas, satisfy the accurate demand of gas flow under different scenes, and improve the rapid detection and accuracy of gas.

Description

Technical Field

[0001] This utility model relates to the field of air detection technology, specifically a portable indoor air rapid screening device. Background Technology

[0002] Today, homes, offices, schools, shopping malls, and other indoor environments face pollution problems caused by various harmful substances. Common indoor air pollutants include formaldehyde, benzene, toluene, xylene, ammonia, radon, and various volatile organic compounds (VOCs). These pollutants may originate from building materials, decoration materials, furniture, home appliances, cleaning agents, cosmetics, etc., posing a serious threat to human health. Long-term exposure to polluted air may lead to various health problems such as respiratory diseases, cardiovascular diseases, and cancer.

[0003] Traditional indoor air quality testing typically requires professionals to collect air samples and bring them back to a laboratory for analysis. While this method provides accurate results, it has significant drawbacks, such as a long testing cycle, often taking several days or even longer from sampling to obtaining results, making it unsuitable for rapid on-site screening. Existing portable air quality testing devices are generally placed statically indoors, requiring a waiting period before providing results. However, the lack of air extraction further prolongs the testing time. Additionally, the gas inside the testing chamber cannot be expelled, and if it mixes with the gas in a new environment, it can negatively impact the testing results for that new environment. Utility Model Content

[0004] Therefore, this utility model proposes a portable indoor air rapid screening device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable indoor air rapid screening device, comprising:

[0006] A detection cylinder, in which a gas detection ring seat is fixed, and an infrared gas sensor is installed in the ring cavity of the gas detection ring seat;

[0007] The suction head is fixedly connected to the front port of the detection cylinder;

[0008] A suction head cap is fitted and pressed onto the suction head, and the open end of the suction head cap is fixed to the annular step of the suction head with a pin. Multiple side openings are provided on the circumference of the side wall of the front end of the suction head cap.

[0009] A handheld tube is fixedly connected to the rear port of the detection tube. An inner sliding tube is fixed in the inner cavity of the handheld tube. The front end of the inner sliding tube is connected to the gas detection ring seat, and the rear end of the inner sliding tube is closed.

[0010] The controller is fixed at the connection between the handheld tube and the detection tube;

[0011] And an elastic sliding plug assembly, which is slidably disposed in the inner sliding cylinder, and the elastic sliding plug assembly is driven by an electric cylinder fixed in the tail end of the handheld cylinder. The electric cylinder is controlled by a controller and drives the elastic sliding plug assembly to slide forward and backward in the inner sliding cylinder to introduce or discharge gas.

[0012] Furthermore, preferably, the resilient slide assembly includes:

[0013] A sliding plug, which is slidably disposed within the inner sliding cylinder;

[0014] A push seat is located behind the slide plug and is fixedly connected to one end of the push rod. The other end of the push rod passes through the rear wall of the inner slide cylinder and is then connected to the moving end of the electric cylinder.

[0015] A sliding column, one end of which is fixedly connected to a push base, and the other end of which is inserted into the movable cavity of the sliding plug and connected to a limiting block;

[0016] And a spring, which is connected between the slide and the push seat, and the spring is wound around the side wall of the slide.

[0017] Furthermore, as a preferred embodiment, the sidewall of the slider is provided with an annular groove, and a rubber ring is installed in the annular groove.

[0018] Furthermore, as a preferred embodiment, the sidewall of the suction head has a circumferential array of multiple spring pieces, and the rear end of each spring piece is fixed to the suction head, and the front end of each spring piece is provided with a protrusion that can block the air vent on the suction head.

[0019] Furthermore, as a preferred embodiment, a slip ring is fixed inside the suction head by a support rod, the slip ring is slidably connected to the connecting rod, and pressure blocks are fixed at both the front and rear ends of the slip ring;

[0020] The suction head is also provided with the same number of pressure blocks three as the spring pieces. Each pressure block three is slidably connected to the pressure block two located in front. Each pressure block three is fixedly connected to one end of a top post, and the other end of each top post passes through the side wall of the suction head and then abuts against the spring piece.

[0021] A keyway is provided on the side wall of the rear end of the suction head, and a pressure key is slidably disposed in the keyway. The bottom end of the pressure key is inserted into the inner cavity of the suction head and is fixedly connected to the pressure block one, which is slidably engaged with the pressure block two located at the rear.

[0022] Furthermore, as a preferred embodiment, a second spring is provided at the inner bottom of the keyway, and the two ends of the second spring are respectively connected to the side wall of the key and the inner bottom surface of the keyway.

[0023] Furthermore, as a preferred embodiment, the end faces of the pressure blocks one, three and two that slide together are all chamfered.

[0024] Furthermore, as a preferred embodiment, the controller is equipped with a display screen that is connected to the infrared gas sensor signal.

[0025] This utility model adopts the above technology and has the following beneficial effects compared with the existing technology:

[0026] This utility model device uses an electric cylinder to drive the elastic sliding plug assembly to slide forward and backward to introduce or discharge gas. It can precisely control the sliding distance and speed of the elastic sliding plug assembly, thereby accurately controlling the amount of gas introduced and discharged, meeting the precise requirements for gas flow in different scenarios, and improving the speed and accuracy of gas detection. When introducing or discharging gas, manually pressing the button causes the pressure block one to move downward. The pressure block one and the slider two slide together, causing the pressure block one to push the pressure block two forward. At the same time, the slider two located in front slides together with each pressure block three, pushing each pressure block three to move outward. This causes the top column to push each spring to deform outward elastically, keeping each air port open, thereby controlling the introduction or discharge of gas. Attached Figure Description

[0027] Figure 1 A three-dimensional structural diagram of a portable indoor air rapid screening device;

[0028] Figure 2 This is a schematic diagram of the internal structure of the handheld tube in a portable indoor air rapid screening device.

[0029] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0030] Figure 4 This is a schematic diagram of the internal structure of the suction head in a portable indoor air rapid screening device.

[0031] In the diagram: 1. Suction head cap; 2. Display screen; 3. Controller; 4. Handheld tube; 5. Detection tube; 6. Suction head; 7. Side port; 8. Gas detection ring seat; 9. Push seat; 10. Inner slide cylinder; 11. Push rod; 12. Rubber ring; 13. Sliding plug; 14. Spring 1; 15. Sliding column; 16. Limiting block; 17. Movable cavity; 18. Spring piece; 19. Press key; 20. Spring 2; 21. Pressing block 1; 22. Pressing block 2; 23. Connecting rod; 24. Slip ring; 25. Top column; 26. Gas port; 27. Pressing block 3. Detailed Implementation

[0032] With reference to the accompanying drawings of the embodiments of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below.

[0033] Example: Please refer to the appendix. Figure 1-4 This utility model provides a technical solution: a portable indoor air rapid screening device, comprising:

[0034] The detection cylinder 5 has a gas detection ring seat 8 fixed inside it, and an infrared gas sensor is installed in the ring cavity of the gas detection ring seat 8.

[0035] The suction head 6 is fixedly connected to the front port of the detection cylinder 5;

[0036] The suction head cap 1 is fitted onto the suction head 6, and the open end of the suction head cap 1 is fixed to the annular step of the suction head 6 with a pin. Multiple side openings 7 are provided on the side wall of the front end of the suction head cap 1.

[0037] The handheld tube 4 is fixedly connected to the rear port of the detection tube 5. An inner sliding tube 10 is fixed in the inner cavity of the handheld tube 4. The front end of the inner sliding tube 10 is connected to the gas detection ring seat 8, and the rear end of the inner sliding tube 10 is closed.

[0038] The controller 3 is fixed at the connection between the handheld tube 4 and the detection tube 5;

[0039] And an elastic sliding plug assembly, which is slidably disposed in the inner sliding cylinder 10, and the elastic sliding plug assembly is driven by an electric cylinder fixed in the tail end of the handheld cylinder 4. The electric cylinder is controlled by the controller 3 and drives the elastic sliding plug assembly to slide back and forth in the inner sliding cylinder 10 to introduce or discharge gas.

[0040] In this embodiment, the elastic slider assembly includes:

[0041] The sliding plug 13 is matched and slidably disposed within the inner sliding cylinder 10;

[0042] Push seat 9 is located behind slide plug 13 and is fixedly connected to one end of push rod 11. The other end of push rod 11 passes through the rear wall of inner slide cylinder 10 and is then connected to the moving end of electric cylinder.

[0043] The sliding column 15 has one end fixedly connected to the push base 9, and the other end of the sliding column 15 is inserted into the movable cavity 17 of the sliding plug 13 and connected to the limiting block 16.

[0044] And spring 14, which is connected between the slide plug 13 and the push seat 9, and spring 14 is wound around the side wall of the slide column 15.

[0045] In this embodiment, an annular groove is provided on the side wall of the slide 13, and a rubber ring 12 is installed in the annular groove.

[0046] In this embodiment, a plurality of spring pieces 18 are arranged in a circumferential array on the side wall of the suction head 6, and the rear end of each spring piece 18 is fixed on the suction head 6. The front end of each spring piece 18 is provided with a protrusion that can block the air port 26 on the suction head 6.

[0047] In this embodiment, a slip ring 24 is fixed inside the suction head 6 by a support rod. The slip ring 24 is slidably connected to the connecting rod 23, and pressure blocks 22 are fixed at both the front and rear ends of the slip ring 24.

[0048] The suction head 6 is also provided with the same number of pressure blocks 27 as the spring sheet 18. Each pressure block 27 is slidably connected to the pressure block 22 located in front. Each pressure block 27 is fixedly connected to one end of the top post 25, and the other end of each top post 25 passes through the side wall of the suction head 6 and then abuts against the spring sheet 18.

[0049] A keyway is provided on the side wall of the rear end of the suction head 6. A pressure key 19 is slidably provided in the keyway. The bottom end of the pressure key 19 is inserted into the inner cavity of the suction head 6 and is fixedly connected to the pressure block 21, which is slidably connected to the pressure block 22 located at the rear.

[0050] Specifically, when priming or venting, manually press button 19 to move pressure block 21 downwards. Pressure block 21 and slider 22 slide together, causing pressure block 21 to push pressure block 2 forward. At the same time, slider 22 in front slides together with each pressure block 27 and pushes each pressure block 27 outwards. This causes the top column to push each spring to deform outwards elastically, and makes each air port open.

[0051] In this embodiment, a second spring 20 is provided at the inner bottom of the keyway, and the two ends of the second spring 20 are respectively connected to the side wall of the key 19 and the inner bottom surface of the keyway.

[0052] In this embodiment, the end faces of the pressure block 1 21, pressure block 3 27 and pressure block 2 22 that slide together are all chamfered.

[0053] In this embodiment, the controller 3 is equipped with a display screen 2 that is connected to the infrared gas sensor signal.

[0054] In practical implementation, an electric cylinder is used to drive the elastic sliding plug assembly to slide forward and backward to introduce or discharge gas. The sliding distance and speed of the elastic sliding plug assembly can be precisely controlled, thereby accurately controlling the amount of gas introduced and discharged, meeting the precise requirements for gas flow in different scenarios, and improving the speed and accuracy of gas detection.

[0055] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A portable indoor air rapid screening device, characterized in that, It includes: The detection cylinder (5) has a gas detection ring seat (8) fixed inside it, and an infrared gas sensor is installed in the ring cavity of the gas detection ring seat (8). The suction head (6) is fixedly connected to the front port of the detection cylinder (5); The suction head cap (1) is fitted and pressed onto the suction head (6), and the open end of the suction head cap (1) is fixed to the annular step of the suction head (6) with a pin. Multiple side openings (7) are provided on the side wall of the front end of the suction head cap (1). A handheld tube (4) is fixedly connected to the rear port of the detection tube (5). An inner sliding tube (10) is fixed in the inner cavity of the handheld tube (4). The front end of the inner sliding tube (10) is connected to the gas detection ring seat (8). The rear end of the inner sliding tube (10) is closed. The controller (3) is fixed at the connection between the handheld tube (4) and the detection tube (5); And an elastic sliding plug assembly, which is slidably disposed in the inner sliding cylinder (10), and the elastic sliding plug assembly is driven by an electric cylinder fixed in the tail end of the handheld cylinder (4). The electric cylinder is controlled by a controller (3) and drives the elastic sliding plug assembly to slide forward and backward in the inner sliding cylinder (10) to introduce or discharge gas.

2. The portable indoor air rapid screening device according to claim 1, characterized in that: The resilient slider assembly includes: A sliding plug (13) is slidably disposed within the inner sliding cylinder (10); Push seat (9) is located behind the slide plug (13) and is fixedly connected to one end of push rod (11). The other end of push rod (11) passes through the rear wall of the inner slide cylinder (10) and is then connected to the moving end of the electric cylinder. The sliding column (15) is fixedly connected to the push seat (9) at one end, and the other end of the sliding column (15) is inserted into the movable cavity (17) of the sliding plug (13) and connected to the limiting block (16); And a spring (14) connected between the slide (13) and the push seat (9), and the spring (14) is wound around the side wall of the slide (15).

3. The portable indoor air rapid screening device according to claim 2, characterized in that: The side wall of the slide (13) is provided with an annular groove, and a rubber ring (12) is installed in the annular groove.

4. The portable indoor air rapid screening device according to claim 1, characterized in that: The suction head (6) has a circumferential array of multiple spring pieces (18) on its side wall, and the rear end of each spring piece (18) is fixed on the suction head (6). The front end of each spring piece (18) is provided with a protrusion that can block the air port (26) on the suction head (6).

5. A portable indoor air rapid screening device according to claim 4, characterized in that: The suction head (6) is fixed with a slip ring (24) by a support rod. The slip ring (24) is slidably connected to the connecting rod (23), and pressure blocks (22) are fixed at both the front and rear ends of the slip ring (24). The suction head (6) is also provided with the same number of pressure blocks (27) as the spring pieces (18). Each pressure block (27) is slidably connected to the pressure block (22) located in front. Each pressure block (27) is fixedly connected to one end of a top post (25), and the other end of each top post (25) passes through the side wall of the suction head (6) and then abuts against the spring pieces (18). A keyway is provided on the side wall of the rear end of the suction head (6), and a pressure key (19) is slidably provided in the keyway. The bottom end of the pressure key (19) is inserted into the inner cavity of the suction head (6) and is fixedly connected to the pressure block (21) which is slidably connected to the pressure block (22) located at the rear.

6. A portable indoor air rapid screening device according to claim 5, characterized in that: The bottom of the keyway is provided with a second spring (20), and the two ends of the second spring (20) are respectively connected to the side wall of the key (19) and the bottom surface of the keyway.

7. A portable indoor air rapid screening device according to claim 6, characterized in that: The end faces of the pressure block one (21), pressure block three (27) and pressure block two (22) that are slidably connected are all chamfered.

8. A portable indoor air rapid screening device according to claim 1, characterized in that: The controller (3) is equipped with a display screen (2) that is connected to the infrared gas sensor signal.

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