Transmission unit for fluid transfer device

摘要

The invention relates to a transmission unit for the fluid transfer device. The unit includes a support board, a gear, a belt, the first support board of the unit at the middle portion thereof has a first belt wheel, the second support board at the middle portion thereof has a second belt wheel, the middle portion of the head end of the second support board has a third belt wheel, which interacts with the second belt wheel through the belt, the first and second belt wheels interact with each other through the engagement between the first and second gears, the head end of the first support pillar partly inserts into the first support board, the tail end of the first support pillar partly inserts into the cylinder. The transmission unit achieves that the outside power is equally distributed to the four piston units, the transmission unit can be easily mounted, it works steadily, and it has a reasonable stress.