一种便携式空气颗粒物检测仪

Abstract

本实用新型涉及空气检测技术领域，且公开了一种便携式空气颗粒物检测仪，包括颗粒物检测仪本体，所述颗粒物检测仪本体的顶端靠一侧位置安装有连接部，所述连接部的顶端设置有采气组件，所述采气组件具有采气管，所述采气管螺纹安装在连接部的顶端，所述采气管的外圈靠下位置固定安装有密封环块，所述密封环块的内部通过转杆转动安装有若干个固定转块，且若干个固定转块在密封环块内为等距排列，所述固定转块的内部靠上位置设置有连接环板；通过采气组件，不需频繁的拆卸更换，降低对对空气颗粒物检测效率造成的影响，便于提高检测效果，更换过程不需将采气管整体拆下，同时不需持续按压并拧紧螺栓，以便单人操作。

Claims

1. A portable air particulate detector, comprising a particulate detector body (1), a connecting portion (2) is arranged at a side position of a top end of the particulate detector body (1), characterized in that: The top end of the connecting part (2) is provided with a gas sampling assembly (3), and the gas sampling assembly (3) has a gas sampling pipe (4). The gas sampling pipe (4) is threaded onto the top of the connecting part (2). A sealing ring block (5) is fixedly installed on the lower part of the outer ring of the gas sampling pipe (4). Several fixed rotating blocks (6) are rotatably installed inside the sealing ring block (5) via a rotating rod (10). The several fixed rotating blocks (6) are equidistantly arranged inside the sealing ring block (5). A connecting ring plate (7) is provided on the upper part of the inside of the fixed rotating block (6). A connecting seat (8) is provided at the bottom end of the connecting ring plate (7). A filter membrane (9) is installed at the center of the top of the connecting seat (8). A micro stepper motor (11) is installed at the center of the top of the sealing ring block (5). The end of the drive shaft of the micro stepper motor (11) is connected to the top of the rotating rod (10).

2. The portable air particulate matter detector of claim 1, wherein: The drive shaft of the micro stepper motor (11) is provided with a bearing at the connection between it and the sealing ring block (5), and the drive shaft of the micro stepper motor (11) is rotatably connected to the sealing ring block (5) through the bearing.

3. The portable air particulate matter detector of claim 1, wherein: The size of the fixed rotating block (6) is adapted to the size of the gas sampling pipe (4), and the center point of one of the fixed rotating blocks (6) is on the same vertical line as the center point of the gas sampling pipe (4).

4. A portable air particulate matter detector according to claim 3, characterized in that: The sealing ring block (5) has a disassembly port at the bottom front position that is compatible with the fixed rotating block (6), and when the center point of one of the fixed rotating blocks (6) is aligned with the center point of the gas sampling pipe (4), the previous fixed rotating block (6) in the clockwise direction is aligned with the disassembly port position.

5. The portable air particulate matter detector of claim 4, wherein: A sealing head (14) is provided at the bottom of the disassembly port, and the sealing head (14) is interference-fitted with the disassembly port.

6. The portable air particulate matter detector of claim 4, wherein: The top surface of the connecting seat (8) is provided with a hook and loop hook surface (13), and the bottom surface of the connecting ring plate (7) is provided with a hook and loop velvet surface that is compatible with the hook and loop hook surface (13). The connecting seat (8) is detachably connected to the connecting ring plate (7) through the hook and loop hook surface (13) and the hook and loop velvet surface. A pull rod (12) is fixedly installed on one side of the top of the connecting seat (8).

7. The portable air particulate matter detector of claim 1, wherein: The gas sampling pipe (4) and the connecting part (2) are detachably connected, and a gas sampling cap (15) is provided at the top of the gas sampling pipe (4).

Images