Portable gas sampling device based on environmental protection

Abstract

The invention relates to the field of environmental protection, in particular to a portable gas sampling device based on environmental protection, the device comprises a holding rack, a motor is mounted on one side in the holding rack, an output shaft is mounted on one side of the motor, a non-full-tooth gear is fixed at the other end of the output shaft, a hollow inner gear frame is engaged with the outer side of the non-full-tooth gear, and a piston plate is mounted at the upper end of the hollow inner gear frame, a partition plate is slidably connected to the outer side of the piston plate, a guide plate is installed at the upper end of the partition plate, a one-way air inlet valve is installed on the left side between the guide plate and the holding rack, and a one-way air outlet valve is installed on the right side between the guide plate and the holding rack; through the arrangement of the non-full-tooth gear, the hollow inner gear frame, the piston plate, the partition plate, the guide plate, the one-way air inlet valve, the one-way air outlet valve and a power generation apparatus, the device does not need an external power supply, does not need to be charged, only has the size of a palm and can be conveniently held and moved, portability is greatly improved, and meanwhile good practicability is achieved, and popularization is facilitated.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a portable gas sampling device based on environmental protection. Background technique [0002] Environmental monitoring refers to the determination of environmental quality and its changing trend through the determination of representative values ​​of factors affecting environmental quality. In order to better detect air quality and test the content of various gas components and dust in the atmosphere, various sampling and testing equipment should also be used. However, the atmospheric sampler is a testing instrument commonly used by the environmental monitoring department to monitor the atmospheric environment. The existing atmospheric samplers still have certain defects. Most of the existing atmospheric samplers will be used in the same A number of sampling points are set up in the area, and the samples taken at these sampling points are also collected at the same heigh...

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Problems solved by technology

[0002] Environmental monitoring refers to the determination of environmental quality and its changing trend through the determination of representative values ​​of factors affecting environmental quality. In order to better detect air quality and test the content of various gas components and dust in the atmosphere, various sampling and testing equipment should also be used. However, the atmospheric sampler is a testing instrument commonly used by the environmental monitoring department to monitor the atmospheric environment. The existing atmospheric samplers still have certain defects. Most of the existing atmospheric samplers will be used in the same A number of sampling points are set up in the area, and the samples taken at these sampling points are also collected at the same height. It is impossible to sample the atmosphere at different heights of the sampling point at the same time, and thus it is impossible to accurately analyze the current situation of pollutant diffusion in the sampling area; The height of the air sampling equipment on the atmospheric sampler is relatively fixed, which cannot be easily adjusted by the user, and there are certain defects in use. Therefore, there is an urgent need for a portable, environmentally friendly, capable of sampling different heights, and simple operation. An environment-friendly portable air sampling device

[0003] After searching, the Chinese patent No. is CN211425991U, which discloses a kind of environment-friendly portable atmospheric sampling device, which includes a mobile box, and a first fixed plate is fixedly connected between the two inner side walls of the mobile box. The top of a fixed plate is fixedly connected with an electric cylinder, the output end of the electric cylinder is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected with a horizontal sliding rod, and the horizontal sliding rod is connected with the two sides of the moving box. The inner side wall is movably connected, and the top of the horizontal slide bar is fixedly connected with an exhaust fan box, and an exhaust fan is fixedly installed in the exhaust fan box, and the air intake end of the exhaust fan is fixedly connected with an air inlet pipe, and the air inlet pipe The other end of the exhaust fan is fixedly connected with a large air intake pipe, and the gas delivery end of the exhaust fan is fixedly connected with a gas delivery pipeline. The invention has a simple structure and is easy to operate. The electric cylinder can automatically adjust the height for sampling at different heights, and is convenient to carry , green and environmentally friendly, but the portability of the device is not enough, the operator needs to push the device to move, usually the device needs to be operated with an external energy source, and the practicability is low

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