Detection alarm device for VOCs environmental pollution

The utility model discloses a detection and alarm device for VOCs environmental pollution. The monitor comprises a monitor body and a support body, a fixed block is fixedly mounted on the outer side wall of the supporting body; sliding grooves are formed in the outer side walls of the fixing blocks. The monitor body, the supporting body, the fixing block, the sliding groove, the inserting groove,the sliding block and the limiting block are used in cooperation. A sliding block integrally formed by the monitor body is inserted into the sliding chute; the sliding block slides in the sliding groove; when the slide block moves to the position of the slot; pulling monitor body, the slide block is inserted into the slot; fixation of its position, then, the limiting block is inserted into the sliding groove; when the monitor is disassembled, only the limiting block needs to be slid, the detector body needs to be pushed to enable the sliding block to be separated from the inserting groove, then the sliding block is sl