CN-224228806-U - Pneumatic oil pump

Abstract

The utility model belongs to the field of oil pumps, and particularly relates to a pneumatic oil pump which comprises a cylinder body, a piston rod, a pneumatic control valve and an energy storage tank, wherein an oil storage cylinder barrel and an oil storage cylinder barrel are respectively arranged on the cylinder body, an oil inlet port and an oil outlet port which are communicated with the oil storage cylinder barrel are respectively arranged on the cylinder body, an oil pumping piston is arranged in the oil storage cylinder barrel, the pneumatic control valve is connected to the cylinder body and communicated with the oil storage cylinder barrel, the pneumatic control valve enables compressed gas to drive the pneumatic piston to reciprocate in the oil storage cylinder barrel, the pneumatic oil pump enables the piston rod to drive the oil pumping piston to reciprocate in the oil storage cylinder barrel, and the energy storage tank is connected to the cylinder body.

Inventors

• CHEN BAICHAO
• Lv Chunyou

Assignees

• 温州佳田机械科技有限公司

Dates

Publication Date

20260512

Application Date

20250624

Claims (10)

1. 1. The pneumatic oil pump is characterized by comprising a cylinder body, a piston rod, a pneumatic control valve and an energy storage tank, wherein the piston rod, the pneumatic control valve and the energy storage tank are arranged in the cylinder body, an oil storage cylinder barrel and an air storage cylinder barrel are respectively arranged on the cylinder body, an oil inlet port and an oil outlet port which are communicated with the oil storage cylinder barrel are respectively arranged on the cylinder body, an oil pumping piston is arranged in the oil storage cylinder barrel, the pneumatic piston is arranged in the air storage cylinder barrel, the oil pumping piston and the pneumatic piston are respectively arranged at two ends of the piston rod in a linkage mode, the pneumatic control valve is connected to the cylinder body and communicated with the air storage cylinder barrel, the pneumatic control valve enables compressed gas to drive the pneumatic piston to reciprocate in the air storage cylinder barrel, and the pneumatic piston enables the piston rod to drive the oil pumping piston to reciprocate in the oil storage cylinder barrel, and the energy storage tank is connected to the cylinder body and used for enhancing oil pressure.
2. 2. The pneumatic oil pump of claim 1, wherein the oil storage cylinder is internally provided with a first oil storage cavity and a second oil storage cavity corresponding to the oil pumping piston, the cylinder is internally provided with an oil outlet channel connected with the oil outlet interface, the cylinder is internally provided with a first oil outlet channel and a second oil outlet channel which are respectively communicated with the first oil storage cavity and the second oil storage cavity, the first oil outlet channel and the second oil outlet channel are respectively communicated with the oil outlet channel, the first oil outlet channel and the second oil outlet channel are respectively internally provided with a first oil outlet check valve and a second oil outlet check valve, the cylinder is internally provided with an oil inlet channel communicated with the oil inlet interface, the cylinder is respectively provided with a first oil inlet channel and a second oil inlet channel which are respectively communicated with the first oil storage cavity and the second oil storage cavity, and the first oil inlet channel and the second oil inlet channel are respectively communicated with the oil inlet channel, and the first oil inlet channel and the second oil inlet channel are respectively provided with the first oil outlet check valve and the second oil inlet channel.
3. 3. The pneumatic oil-well pump of claim 2, wherein two sealing grooves are respectively arranged on the peripheral wall of the oil pumping piston, and two sealing rings matched with the oil storage cylinder barrel in a sealing way are respectively arranged in the two sealing grooves.
4. 4. The pneumatic oil pump according to claim 2, wherein the energy storage tank comprises an energy storage cylinder barrel, an end cover, an energy storage piston and an energy storage spring, the energy storage cylinder barrel is connected between the cylinder body and the end cover, the energy storage piston is arranged in the energy storage cylinder barrel, the energy storage spring is arranged between the end cover and the energy storage piston, an oil hole communicated between the energy storage cylinder barrel and an oil outlet channel is formed in the cylinder body, an energy storage oil cavity is formed in the position, corresponding to the position between the energy storage piston and the oil storage channel, in the energy storage cylinder barrel, and an oil outlet hole is connected between the energy storage oil cavity and the oil outlet.
5. 5. The pneumatic oil pump of claim 4, wherein the energy storage piston is provided with two O-shaped sealing rings which are in sealing fit with the energy storage cylinder barrel.
6. 6. The pneumatic oil pump of claim 4, wherein a plurality of bolts are respectively connected between the end cover and the cylinder body, and the bolts are distributed in an annular array.
7. 7. The pneumatic oil pump according to claim 1 or 2, wherein the cylinder body is provided with a first air storage cavity and a second air storage cavity respectively at two sides of the corresponding pneumatic piston, and a first vent hole and a second vent hole which are communicated between the air hole of the pneumatic control valve and the first air storage cavity and the second air storage cavity are respectively arranged in the cylinder body.
8. 8. The pneumatic oil pump of claim 7, wherein the pneumatic piston is provided with two sealing grooves respectively, and two O-shaped rings which are in sealing fit with the air cylinder are respectively arranged in the two sealing grooves.
9. 9. The pneumatic oil pump of claim 1, wherein the cylinder comprises a middle cylinder, a left cylinder and a right cylinder, the oil storage cylinder is sealed between the middle cylinder and the left cylinder, and the air storage cylinder is sealed between the middle cylinder and the right cylinder.
10. 10. The pneumatic oil pump of claim 9, wherein the oil inlet port and the oil outlet port are respectively connected to the middle cylinder body in a threaded manner, and a plurality of anti-drop grooves exposed outside the middle cylinder body are respectively arranged on the oil inlet port and the oil outlet port.

Description

Pneumatic oil pump Technical Field The utility model belongs to the technical field of oil pumps, and particularly relates to a pneumatic oil pump. Background ‌ At present, most of the enterprises use pump equipment in the production link of oil pumping, but most of the oil pumps are driven by electric power. Although the electric oil pump can meet the requirements of most enterprises in the production process, the electric oil pump is inevitably volatilized or leaked with combustible gas in workshops of oil refining, chemical industry and explosion-proof industry, and when electric spark is generated in the electric oil pump (motor, circuit and switch), fire and explosion accidents are easy to happen, and potential safety hazards are brought to production, so that the electric oil pump cannot meet the use requirements of explosion-proof occasions. And the power of the existing electric oil-well pump is mostly rated, when oil (gasoline, kerosene, diesel oil, engine oil and hydraulic oil) with different concentrations is pumped, the load of a motor of the electric oil-well pump is also different, and when oil with higher concentration is pumped, the motor is easy to burn out, so that the electric oil-well pump has poor applicability and flexibility. Disclosure of Invention The utility model aims to overcome the defects and the shortcomings of the prior art, and provides a pneumatic oil pump which can meet the use requirement of explosion-proof occasions and has wide applicability. The pneumatic oil pump comprises a cylinder body, a piston rod, a pneumatic control valve and an energy storage tank, wherein the piston rod, the pneumatic control valve and the energy storage tank are arranged in the cylinder body, an oil storage cylinder barrel and an air storage cylinder barrel are respectively arranged on the cylinder body, an oil inlet port and an oil outlet port which are communicated with the oil storage cylinder barrel are respectively arranged on the cylinder body, an oil pumping piston is arranged in the oil storage cylinder barrel, the pneumatic piston is arranged in the air storage cylinder barrel, the oil pumping piston and the pneumatic piston are respectively arranged at two ends of the piston rod in a linkage mode, the pneumatic control valve is connected to the cylinder body and communicated with the air storage cylinder barrel, the pneumatic control valve enables compressed gas to drive the pneumatic piston to reciprocate in the air storage cylinder barrel, the pneumatic piston rod enables the oil pumping piston to reciprocate in the oil storage cylinder barrel, and the energy storage tank is connected to the cylinder body and used for enhancing oil pressure of an oil outlet. In some embodiments, a first oil storage cavity and a second oil storage cavity are formed in the oil storage cylinder barrel corresponding to two sides of the oil pumping piston respectively, an oil outlet channel connected with the oil outlet port is formed in the cylinder body, a first oil outlet channel and a second oil outlet channel which are communicated with the first oil storage cavity and the second oil storage cavity are respectively formed in the cylinder body, the first oil outlet channel and the second oil outlet channel are respectively communicated with the oil outlet channel, a first oil outlet check valve and a second oil outlet check valve are respectively arranged in the first oil outlet channel and the second oil outlet channel, an oil inlet channel communicated with the oil inlet port is formed in the cylinder body, a first oil inlet channel and a second oil inlet channel which are respectively communicated with the first oil storage cavity and the second oil storage cavity are respectively formed in the cylinder body, and the first oil inlet channel and the second oil inlet channel are respectively communicated with the oil inlet channel and are respectively formed in the first oil inlet channel and the second oil inlet channel. In some embodiments, two sealing grooves are respectively arranged on the peripheral wall of the oil pumping piston, and two sealing rings which are in sealing fit with the oil storage cylinder barrel are respectively arranged in the two sealing grooves. In some embodiments, the energy storage tank include energy storage cylinder and end cover and energy storage piston and energy storage spring, energy storage cylinder connect between cylinder body and end cover, energy storage piston set up in the energy storage cylinder, energy storage spring set up between end cover and energy storage piston, the cylinder body in be provided with the oilhole of intercommunication between energy storage cylinder and oil outlet channel, energy storage cylinder in correspond and be formed with the energy storage oil pocket between energy storage piston and the oil outlet channel, energy storage oil pocket and oil-out between be connected with the oil outlet. In some embodiments, two O-rings are