The composition and working principle of manual hand oil pump
2023-11-30 16:06:05
A manual / hand oil pump for hydraulic jack consists of the following parts:
1. Pump body part: The manual hand oil pump body part is the main part of the oil pump, including high-pressure working chamber, low-pressure working chamber, two one-way valves, high-pressure valve (safety valve), low-pressure valve, unloading valve, two check valves, oil inlet The mouth and so on are all on top. The holes everywhere are organically connected. The two one-way valves prevent pressure oil from flowing back, and their specifications and functions are the same. The function of the low-pressure valve and the high-pressure valve is pressure control, which controls the pressure at 1Mpa and 63Mpa respectively. The other two steel balls at the oil inlet are check valves. After the work is completed, open the unloading valve and the pressure oil flows back to the oil storage pipe to complete the unloading work.
2. Handle part: mainly composed of pressure rod and pressure handle. It is connected to the hand oil pump pump body and plunger by two pins. Manual force acts on the pressure rod, driving the plunger to reciprocate. Generates oil pressure. There are screw holes on the pressure handle for vertical installation of the pressure rod. You can choose vertical or horizontal position operation according to the convenience of operation.
3. Hose part: It is the component that connects the manual oil pump and the oil cylinder to transport pressure oil. When not in use, the hose is detached from the oil cylinder, and the head of the hose is blocked with a rubber cap to prevent dirt from entering the oil pipe and oil cylinder.
4. An oil filling and air releasing device is installed on the rear seat or the fuel tank. When the oil pump is working, the air releasing device must be loosened to avoid generating negative pressure and affecting normal operation. After the work is completed, tighten the bleeder screw. Install a hook at the rear end to lock the pressure rod with the hook when carrying the oil pump.
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