Pedal type screening device

Abstract

The invention discloses a pedal type screening device. The device comprises a base, a sieve, an arm-rest frame, a ratchet wheel, two pedals and a seat. The arm-rest frame is arranged in the middle ofthe base. A supporting hanging rod is arranged at the front end of the base. Guide grooves are formed in the arm-rest frame and the supporting hanging rod correspondingly. A sieve bracket is hung on the supporting hanging rod. The sieve is arranged on the sieve bracket. A guide rod is arranged at the front end of the sieve bracket, and a push rod is arranged at the rear end of the sieve bracket. The front portion of the guide rod is located in the guide groove formed in the supporting hanging rod, the push rod is located in the guide groove formed in the arm-rest frame, and the rear segment ofthe push rod is in sliding connection with the ratchet wheel. A seat frame is arranged at the rear end of the base. The seat is mounted on the seat frame. Two ratchet wheel seats are arranged on theportion, behind the arm-rest frame, of the base. An axletree is mounted on the upper portions of the two ratchet wheel seats. The two pedals are mounted at the two ends of the axletree in a 180-degreeintersecting mode, and the ratchet wheel is fixed to the middle of the axletree and located between the two ratchet wheel seats. The pedal type screening device adopts a riding mode to replace pure manual oscillating and can be used for both laboratory soil sample screening and peasant household grain screening, the labor intensity is relieved, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a pedal type sifter. Background technique [0002] Laboratories of agriculture and forestry universities often deal with soil, sampling, screening, and testing. Screening is currently performed manually, which is a laborious task. For college students, the intense learning tasks are unwilling to engage in primary physical labor. In addition, most of the small varieties of crops planted by farmers in rural areas are not large, and it is unrealistic to use mechanical sieving. It is often purely manual sieving, which is labor-intensive. Contents of the invention [0003] The object of the present invention is to provide a foot-operated sifter with simple structure, low cost, reduced labor intensity and improved work efficiency. [0004] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: a foot-o...

AI Technical Summary

Problems solved by technology

In addition, most of the small varieties of crops planted by farmers in rural areas are not large, and it is unrealistic to use mechanical sieving. It is often purely manual sieving, which is labor-intensive.

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