Hydraulic manual pump is a device that generates hydraulic energy through manual operation and is widely used in various hydraulic machinery and hydraulic systems. It mainly consists of pump body, plunger, sealing ring, return spring, and valve.
The working principle of a hydraulic manual pump is to shake the handle up and down, causing the plunger to move back and forth in the pump body, thereby sucking in and discharging liquid from the pump body. Specifically, when the plunger moves upwards, the liquid inside the pump is sucked in; When the plunger moves downwards, the liquid is compressed and discharged. By controlling the valve, the direction and pressure of liquid flow can be adjusted.
Hydraulic manual pumps have the advantages of small volume, light weight, easy portability, high reliability, and long service life, so they have been widely used in many fields. For example, in car maintenance, hydraulic manual pumps can be used to adjust tire pressure; Hydraulic systems that can be used for lifting platforms and supporting equipment in construction and bridge construction; In agricultural machinery, it can be used for hydraulic systems of tractors and harvesters.
Working principle of hydraulic manual pump:
Hydraulic manual pump body structure: The hydraulic manual pump is composed of a pump body, a handle, a piston, and a valve. The handle is connected to the piston through a connecting rod, and the up and down movement of the handle can drive the reciprocating movement of the piston.
Working cycle: When the handle moves upwards, the piston moves upwards, and the liquid in the pump body is pumped into the pump body by the piston. When the handle moves downwards, the piston moves downwards and the liquid inside the pump is squeezed out.
Working principle: By the up and down movement of the piston, the liquid is compressed and high-pressure is generated. When the piston of the manual pump moves downwards, the liquid in the pump chamber is compressed, and the pressure gradually increases. When a certain pressure is reached, the liquid flows out through the outlet pipeline, driving the actuating components in the hydraulic system.
When the piston of the manual pump moves upwards, the liquid in the pump chamber is sucked in, forming a low-pressure state. At this time, the manual pump can be compressed again.
The main components of a hydraulic manual pump are:
Pump body: This is the basic component of a manual hydraulic pump, usually made of cast iron or aluminum alloy, with high strength and stiffness.
>Plunger: This is the core component of a manual hydraulic pump, which can move back and forth within the pump body and suck in and out hydraulic oil through a sealing ring.
Sealing ring: used to prevent hydraulic oil leakage. Return spring: Its function is to automatically return the plunger, ensuring continuous supply of hydraulic oil.
Valve: controls the flow direction and pressure of hydraulic oil.
In addition, it also includes some other components such as connecting rods, pistons, etc. These components work together to achieve the pumping and compression functions of a manual hydraulic pump.
