Film replacing device of rapid heavy metal detector

Abstract

The invention relates to a film replacing device of a rapid heavy metal detector. The film replacing device comprises a film discharging part, a film collecting part, a mobile battery and a control switch, wherein the film discharging part and the film collecting part are symmetrically arranged in parallel on two sides of a probe of the detector; the film discharging part and the film collecting part are sleeved on a fixed roller through a roller; the top of the roller of the film collecting part is connected with a driven gear; a motor is fixed on the side of the film collecting part; the motor is a variable-frequency motor with a brake; an output shaft of the motor is in meshed connection with the driven gear through a driving gear; the mobile battery supplies power to the motor; the motor is controlled to be started and stopped through the control switch; and films on the film discharging part are wound on the roller of the film collecting part after passing through the probe. According to the film replacing device of the rapid heavy metal detector, the steps of the detection process are simplified; the films can be automatically wound and unwound; meanwhile, the pollution to the environment is avoided.

Description

technical field [0001] The invention relates to a membrane changing device for a detector, in particular to a membrane changing device for a heavy metal rapid detector. Background technique [0002] When the existing rapid heavy metal detector detects soil samples, a film needs to be placed in front of the probe to prevent the probe from being polluted by the soil under test and affect the test results. Due to the use of this layer of protective film, it is necessary to cut the appropriate size transparent film before testing, and it needs to be replaced during testing, which makes the testing process cumbersome, and if the used film is not collected, it will be scattered around and cause pollution. Contents of the invention [0003] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a membrane changing device for a heavy metal rapid detector. Avoid causing environmental pollution. [0004] Concrete technical scheme o...

AI Technical Summary

Problems solved by technology

Due to the use of this layer of protective film, it is necessary to cut the appropriate size of the transparent film before the test, and it needs to be replaced during the test, which makes the test process cumbersome, and if the used film is not collected, it will be scattered around and cause pollution.

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