| 摘要 |
FIELD: agriculture. ^ SUBSTANCE: device comprises a barrel, a dynamic system made as a rod rotatable around its axis and a sample receiver connected to it movably, a charging chamber - a cartridge chamber, closure mechanism and percussion trigger. The closure mechanism consists of a body, a lock and a latch; the lock is fitted with a cup; an extractor hook to get a used cartridge from the cartridge chamber, stops, a core bullet with a sting, a limiter, an L-shaped groove. The body is fixed in the upper part of the barrel and is fitted by a shaped channel, an annular cut, through holes and a stopper limiting the lock movement within the L-shaped groove and the latch comprises bolts and a spring. The latch bolts are made so that to be able to close through holes of the body and block the lock stops in its annular cut; the core bullet sting is made so that to go beyond the cup when the lock is moving which allows the core bullet sting to reflect the used cartridge to the body through hole when interacting with a spring-loaded striker. ^ EFFECT: providing for favourable interaction of the closure mechanism parts, protection of its parts against unfavourable conditions, increasing labour productivity. ^ 8 dwg |
