A filter mechanism for gas detection

Abstract

The utility model belongs to gas filtration technical field, concretely is a kind of filter mechanism for gas detection, including the connecting pipe of installation in air detector, still including force sensor, be arranged in annular cover, annular cover inner periphery is equipped with spring, and the both ends of spring are respectively with the bottom end of force sensor and annular cover bottom plate fixed connection, air detector is equipped with PCB board and annular cover and reminding module electric connection, the support plate that is equipped with in the installation cylinder that connecting pipe top end communicates, and annular avoiding groove is set up in support plate top surface, lower ring plate, be arranged in support plate top, fixed ring is fixed in installation cylinder inner wall, and fixed ring top is equipped with upper ring plate, and the smooth rod that is fixed between upper ring plate and lower ring plate and passes through fixed ring;The utility model can be in the filter paper of not installing by reminding module to user alarm warning, secondly, filter paper is compacted, avoid filter paper deviation when working.

Claims

1. A filtering mechanism for gas detection, comprising a connecting pipe (1) installed in an air detector, characterized in that, Also includes: A force sensor (9) is set inside an annular sleeve (7). A spring is provided circumferentially inside the annular sleeve (7), and the two ends of the spring are respectively fixed to the bottom end of the force sensor (9) and the bottom plate of the annular sleeve (7). The air detector is provided with a PCB board that is electrically connected to the annular sleeve (7) and the reminder module. The top end of the connecting tube (1) is connected to the mounting cylinder (2) which is provided with a support plate (13). An annular clearance groove (1302) is opened on the top surface of the support plate (13). The force sensor (9) is used to detect the force on the spring in real time. The lower ring plate (11) is set above the support plate (13). The inner wall of the mounting cylinder (2) is fixed with a fixing ring (14), and the upper ring plate (10) is set above the fixing ring (14). A smooth rod (12) that passes through the fixing ring (14) is fixed between the upper ring plate (10) and the lower ring plate (11). When the mounting cylinder (2) and the air inlet (3) are installed, the lower ring plate (11) is pressed against the filter paper by pushing the upper ring plate (10) and the smooth rod (12).

2. The filtration mechanism for gas detection according to claim 1, characterized in that: The bottom end of the air intake bucket (3) is fixed with an external threaded ring (4) which is threadedly connected to the threaded section provided on the inner wall of the mounting cylinder (2). The bottom end of the external threaded ring (4) is fixed with a pressure ring (5). The annular sleeve (7) is slidably provided with a sliding ring (8), and the force sensor (9) is fixedly connected to the bottom end of the sliding ring (8). A smooth plate (6) that penetrates the top end of the annular sleeve (7) is fixed between the top end of the sliding ring (8) and the bottom end of the pressure ring (5).

3. The filtration mechanism for gas detection according to claim 1, characterized in that: A spring is provided above the fixed ring (14) and wrapped around the smooth rod (12), and the two ends of the spring are fixedly connected to the fixed ring (14) and the upper ring plate (10) respectively.

4. A filtration mechanism for gas detection according to claim 1, characterized in that: The fixed ring (14) is provided with a connecting ring (1101), and the two ends of the connecting ring (1101) are fixedly connected to the upper ring plate (10) and the lower ring plate (11) respectively.

5. A filtration mechanism for gas detection according to claim 2, characterized in that: The bottom end of the pressure ring (5) is rotatably mounted with multiple balls (501), and the balls (501) are arranged circumferentially.

6. A filtration mechanism for gas detection according to claim 1, characterized in that: The support plate (13) has multiple ventilation holes (1301).

7. A filtration mechanism for gas detection according to claim 1, characterized in that: The reminder module is a buzzer or a red LED light installed on the air detector.

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