Hand pump

The hand pump is suitable for pumping clean water, gasoline, kerosene, and non corrosive liquids such as iron and copper. It is not suitable for liquids containing fibers or other solid particles. Only 1-2 people need to manually shake the handle back and forth to work. It can be used by industrial, mining, enterprises, schools, vehicles, ships and other units.

A hand cranked oil pump powered by hand cranking. There are two common types: piston type and scraper type. They absorb and discharge oil through the volume change formed by the movement of pistons or scrapers inside the pump casing.

A hand pump is an oil pump that operates by manually shaking the pump shaft. It has the characteristics of simple structure, convenient operation, excellent performance, and light weight. Mainly assigned to military oil depots, field oil depots, and field gas stations, used for refueling and pumping oil to dispersed vehicles and oil storage containers.

A hand pump is a pump type machinery that manually operates the reciprocating shaking handle to lift liquids. There are scraper type and piston type according to their structure. The structure is simple, easy to use and excellent, the price is suitable, and there is no need for power or other power, but the flow and head are relatively small.

The structural principle of a hand pump is that when the handle is shaken back and forth by hand, the piston moves back and forth through transmission mechanisms such as the shaft, rocker arm, and connecting rod. When the piston moves to the left, the volume of the pump cylinder at the right end gradually expands, forming a vacuum. The liquid enters the right end of the cylinder body through the suction pipe, passing through the suction channel cast next to the pump body and opening the suction valve. At the same time, due to the compression of the piston on the left side of the cylinder block, the water pressure valve opens and the liquid is discharged through the discharge pipe. If the direction of the piston's movement returns to the right, the liquid is sucked in on the left side of the pump cylinder and discharged on the right side of the pump cylinder, continuously sucking and discharging the liquid back and forth. Forming the operation of the pump. The upward stroke of the pump's pressure valve is limited by the cover plate, and the upward stroke of the suction valve is limited by the pressure valve. The cover plate and pump body are fastened with bolts, and the piston stroke is limited by the pump cover and pump body. For installation on walls or other foundations, the pump body has three bolt holes.