Tree injection machine medicine storage box needle assembly

Abstract

The invention provides a medicine storage box needle assembly of a tree injection machine. The medicine storage box needle assembly comprises a needle, a needle hoop, a needle holding ring, a needle ring sleeve and a medicine discharging rod; the step surface of the needle hoop is fitted and fixed together with the step surface of the needle; each step surface inside a cavity of the needle holdingring is respectively clamped and fixed together with the step surfaces of the medicine discharging rod and the needle hoop; the needle ring sleeve is used for fixing the radial direction of the needle holding ring; and a spring is arranged between the needle ring sleeve and the step surface of the medicine discharging rod. Due to the optimal design of a structure, the stable connection between the medicine storage box needle assembly and a medicine pump assembly is guaranteed, the rapid and stable needle inserting and withdrawing of the tree injection machine are realized, and the operation effect is improved. Meanwhile, it is convenient to dismount, mount and replace the needle, and the work efficiency is increased. The medicine storage box needle assembly is further provided with an orienting device by which the mounting direction of the needle is guaranteed, the direction of the needle is guaranteed not to be changed in an operation process, and the operation effect is guaranteed.Due to the design of a pressure sensor and a position sensor, the injection pressure and needle position change in the operation process are monitored in real time, the injection dosage is precisely controlled, and abnormal phenomena are prevented and avoided.

Description

technical field [0001] The invention relates to the field of tree disease and insect pest control and nutrient solution injection equipment, in particular to a needle assembly of a medicine storage box of a tree injection machine for injecting a medicine solution or a nutrient solution into a tree transporting tissue. Background technique [0002] As we all know, in the process of tree injection, if you want to stably and effectively inject the medicinal liquid or nutrient solution into the tree transporting tissue, firstly, the needle must be able to be inserted into the tree body quickly and stably, and the needle (including the machine) The whole) must remain stable (no shaking or external force); secondly, the feeding pressure must be large enough and stable; and the needle can be withdrawn quickly and stably. The existing tree injection facilities are mostly manually operated, which has many steps, high labor intensity, low work efficiency and poor reliability. Chinese...

AI Technical Summary

Problems solved by technology

The existing tree injection facilities are mostly manually operated, with many operation steps, high labor intensity, low work efficiency and poor reliability

Chinese Patent No. ZL95112833.7 discloses a tree injection machine, which is a mechanical power injection device, and integrates a power conversion mechanism, a plunger pump mechanism, and a needle advance and withdrawal mechanism. The tree injection machine with this structural design is available in In the operation process, there are problems such as high machine quality, difficult control, and poor operation effect due to large impact during the needle insertion process; the invention patent of Chinese Patent No. ZL201110169576.7 discloses a tree injection machine, which has a fuel tank, a medicine storage tank, a gasoline engine, a column The plug pump and the power conversion system are combined on the back frame, and the advance and retreat needle impactor, the impact reversing control system, the injection needle system, and the transmission control control system are integrated into a hand-held operating system. During the operation, there is also an impact during the needle insertion process Large size, poor stability of the needle during needle insertion and injection, low degree of automation, difficult control of injection volume, poor operation effect, etc.

At the same time, the existing structure of the needle assembly of the medicine storage box is not only cumbersome to disassemble and replace the needle, but also the position of the needle is not easy to fix during the pumping process, and the stability of the connection with the medicine pump assembly cannot be guaranteed, which affects the operation of tree injection speed and effect

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