Integrated water-fertilizer quantitative top application device

Abstract

The invention discloses an integrated water-fertilizer quantitative top application device. The device comprises a fertilizer container (1) and a gun body (8), wherein a water pump (6), a singlechip controller (3) and a power supply (5) are arranged on a mounting support (2) arranged under the fertilizer container (1) and are connected with each other; the fertilizer container (1) is connected with the gun body (8) by virtue of the water pump (6) and a plastic pipe (7). According to the integrated water-fertilizer quantitative top application device, the device is operated by driving the water-fertilizer by virtue of the water pump, so that labor force is reduced; quantitative fertilizer application is realized by only pressing a valve on the gun body to control the operation time of the water pump by virtue of the singlechip controller, so that the error of the fertilizer application amount per time can be controlled to be within 1ml.

Description

technical field

[0001] The invention relates to a backpack-type quantitative top dressing device. Background technique

[0002] Tobacco fertilization is an effective measure to artificially adjust the yield and quality of tobacco leaves, and precise fertilization is crucial to how to achieve an optimal state of input and output. The quantification mode of existing small-scale topdressing device all adopts the principle of the syringe, utilizes hand to push piston stroke to control the amount of fertilization. Such a structure is adopted in a kind of backpack type quantitative topdressing device disclosed in Chinese patent (CN202168340U). In addition to the need to design the piston barrel and piston structure, this structure also needs to design a single unit at the feed port and the discharge port. One-way valve, the response time of the two one-way valves will affect the actual intake and discharge of fertilizer. Moreover, the airtightness of the piston will decrease wit...

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