Automatic sampling drill rod for multi-variety grains

The invention discloses an automatic sampling drill rod for multi-variety grains. The automatic sampling drill rod comprises an outer pipe and an inner pipe, wherein a grain outlet is formed in the upper end of the inner pipe; grain inlets are correspondingly formed in the lower ends of the inner pi...

Full description

Saved in:
Bibliographic Details
Main Author DU GUANGYI
Format Patent
LanguageEnglish
Published 25.02.2015
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
Online AccessGet full text

Cover

More Information
Summary:The invention discloses an automatic sampling drill rod for multi-variety grains. The automatic sampling drill rod comprises an outer pipe and an inner pipe, wherein a grain outlet is formed in the upper end of the inner pipe; grain inlets are correspondingly formed in the lower ends of the inner pipe and the outer pipe; an air inlet channel is formed between the outer pipe and the inner pipe; an air inlet is formed in the outer pipe; the lower ends of the inner pipe and the outer pipe are connected with a drill bit. The automatic sampling drill rod is characterized in that the outer pipe is arranged in a hole formed by fixedly connecting a large slide block with a drill rod pressing plate; the upper end of the outer pipe is connected with an adjusting nut; a spring supporting pad is fixedly arranged at the lower end of the outer pipe; the lower end face of a buffer spring sleeving the outer pipe is contacted with the spring supporting pad fixedly arranged at the lower end of the outer pipe; a drill rod guide cover is fixedly arranged at the lower end of the large slide block and the drill rod pressing plate; the spring supporting pad on the outer pipe is in sliding fit with the drill rod guide cover; and the drill bit is formed by connecting a drill tip and an inclined body which controls the opening of the grain inlet. The inclined angle N of the inclined body which controls the opening of the grain inlet on the drill bit is 25-35 degrees. The automatic sampling drill rod has a buffering effect, the opening of the grain inlet can be adjusted by replacing the drill bit, smooth grain inlet is realized, the grains are not blocked, accurate sampling is realized, and the automatic sampling drill rod is suitable for multiple purposes through one machine.
Bibliography:Application Number: CN20141652692