Sample preparation device for food safety detection

Abstract

The invention discloses a sample preparation device for food safety detection, and belongs to the technical field of food safety detection. The sample preparation device for food safety detection comprises a sample preparation box, the inner wall of the sample preparation box is fixedly connected with a fixing plate, an inlet is formed in the outer wall of the sample preparation box and located above the fixing plate, the inner wall of the sample preparation box is further rotationally connected with a lead screw and a rotating shaft, the outer wall of the lead screw is in threaded connection with a placement plate, and the placement plate is slidably connected to the outer wall of the fixing plate, the outer wall of the rotating shaft is connected with a cutting mechanism, the cutting mechanism is arranged above the placement plate, through holes are formed in the outer wall of the fixing plate, three blanking openings matched with the through holes are formed in the outer wall of the placement plate, the outer wall of the sample preparation box is connected with a supporting seat, the outer wall of the supporting seat is connected with a motor, and the output end of the motor is connected with a first rotating shaft, a first gear is connected to the outer wall of the first rotating shaft; the device is simple in structure, the manufacturing cost of the device is reduced, the food safety detection cost is further reduced, and the actual use requirements can be met.

Description

technical field [0001] The invention relates to the technical field of food safety testing, in particular to a sample preparation device for food safety testing. Background technique [0002] Food safety testing is to detect harmful substances in food according to national indicators, mainly the detection of some harmful and toxic indicators, such as heavy metals, aflatoxins, etc. An important aspect of food science and engineering is the introduction and use of chemical unit operations, and Develop and form food engineering unit operations, thereby promoting the development of the food industry in the direction of large-scale, continuous and automated. [0003] The Chinese invention with the patent number CN201711281768.0 in the prior art discloses a sample preparation device for food safety testing. The lower end of the push rod is rotated to connect to the upper end of the blade, the blade is slid to connect to the slide plate, the crankshaft is rollingly connected to the...

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Problems solved by technology

[0003] The Chinese invention with the patent number CN201711281768.0 in the prior art discloses a sample preparation device for food safety testing. The lower end of the push rod is rotated to connect to the upper end of the blade, the blade is slid to connect to the slide plate, the crankshaft is rollingly connected to the upper part of the transmission belt, and the lower part of the transmission belt is rollingly connected to the screw rod , the left end of the screw rod rotates the body of the connecting device, and the right part of the screw rod is threaded to connect the left end of the movable plate, the upper end of the screw rod is provided with a travel switch, the surface of the movable plate is equidistantly provided with three grooves, the partition plate is fixed to the connecting device body, and the surface of the partition plate is equidistant Set up three through holes, the device can simultaneously prepare three samples of different positions on the solid food for testing, making the testing data more scientific, avoiding the small sample capacity caused by the partial position of the food, and reducing the reliability of the testing data, which is conducive to protecting consumption However, there are still certain defects. The structure of the device is relatively complicated. To prepare three samples in different positions, three crushing mechanisms are required to crush the respective samples, which leads to high production costs of the device, which in turn increases the cost of food safety testing.

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