Negative-pressure-type rubber tree spraying machine based on check valves

• Main Authors: MA DEYONG, ZHANG HUALIN, DAI XIAOHONG, HE JUNJUN, LUO PING, HUANG XIAOHUA
• Format: Patent
• Language: Chinese; English
• Published: 10.12.2014
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUSPLANTS; CATCHING, TRAPPING OR SCARING OF ANIMALS; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; TRAPPING

The utility model discloses a negative-pressure-type rubber tree spraying machine based on check valves. The negative-pressure-type rubber tree spraying machine based on the check valves comprises a pesticide sucking pipe, a pesticide box and a negative pressure chamber shell, wherein one end of the pesticide sucking pipe stretches into the pesticide box; the other end of the pesticide sucking pipe is connected with the bottom of the negative pressure chamber shell; the negative-pressure-type rubber tree spraying machine based on the check valve further comprises a lower check valve, a rubber piston, an upper check valve, a piston rod, a handle link, an adjusting base and an ear-cleaning ball-type pesticide-dispensing needle; the lower check valve is positioned at a junction of the pesticide sucking pipe and the negative pressure chamber shell; the rubber piston is arranged inside the negative pressure chamber shell; a through hole is formed in the middle part of the rubber piston; the upper check valve is ar