Static box with adjustable collection depth

The utility model provides a static box with adjustable collection depth, which relates to the field of soil gas sampling and comprises a box body, and two symmetrical threaded rods are rotatably connected in the box body. According to the soil gas sampler, when soil gas with different depths needs to be sampled, the servo motor is started to drive the threaded rod to rotate, and the conveying belt drives the other threaded rod to rotate, so that the two nuts can be conveniently driven to move downwards at the same time, and the soil gas sampler in the fixing device can be conveniently drivento move downwards; when the soil gas sampler needs to be installed and limited, the soil gas sampler is placed in the fixing sleeve, the soil gas sampler is fixed and limited through the two arc-shaped clamps under the action of the spring, and when the soil gas sampler needs to be taken out, the soil gas sampler can be conveniently taken out by pulling the pull plate. Therefore, the material canbe conveniently taken out.