Negative pressure adsorption type seeding tray

Abstract

The invention discloses a negative pressure adsorption type seeding tray which comprises a front shell, a rear shell, a storage box, a suction cup, a sealing gasket and a transmission assembly, wherein the storage box is arranged on the front side of the front shell, a feeding cavity is defined between the storage box and the front shell, a storage cavity is formed in the middle of the front shell, the suction cup is arranged on the rear side of the storage cavity, the sealing gasket is arranged on the rear side of the suction cup, an air suction cavity is formed in the rear shell, and a circle of suction holes are formed in the periphery, corresponding to the position of the air suction cavity, of the suction cup at intervals; a feeding port communicating with the feeding cavity and the storage cavity is formed in the side wall of the front shell, a discharging port is formed in the position, corresponding to the bottom position of the storage cavity, of the front shell, and a first through hole and a second through hole are formed in the positions, located above the discharging port and corresponding to the top position of the storage cavity, of the front shell respectively; and a third through hole is formed in the rear shell, and the outer portion of the third through hole is connected with an air suction bent pipe communicating with the air suction cavity. The negative pressure adsorption type seeding tray aims to solve the problems that existing seeding trays cannot ensure single-grain seeding, the seeding efficiency is low and the like.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery sowing equipment, in particular to a negative pressure adsorption type sowing disc. Background technique [0002] The sowing disc is an important working part in the seeder, which is used to sow the seeds into the corresponding seed hole. The sowing disc can be divided into two types: mechanical type and air suction type according to the form of seed arrangement. [0003] The existing sowing trays have the following problems. First, the existing sowing trays are difficult to ensure that only a single seed is sown each time, and re-seeding and missed sowing are prone to occur; There are broken seeds; third, the existing sowing trays are naturally seeded, the seeding speed is slow, and the sowing efficiency is low; fourth, the existing sowing trays are not easy to check the internal situation; fifth, the existing The sowing disc seed channel is easy to block. [0004] Aiming at the ...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a negative pressure adsorption type seeding tray to solve the problem that it is difficult to ensure that only a single seed is sown each time in the existing seeding tray, which is prone to reseeding and missed sowing. Seed fragmentation is easy to occur during sowing, seeds will fall naturally during sowing, the speed of seed

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