Electric oil pump with one-way valve
View Patent ↗An electric oil pump with an one-way valve is provided, which includes a control box. The control box is provided with a communication pipe and a control board, one end of the communication pipe is connected with an oil-extracting pipe, the other end is connected with an oil outlet pipe, a pump body is arranged in the oil outlet pipe, and a bottom of the control box is rotatably installed with a threaded cap. When the oil pump is, working, the gasoline is blocked by the one-way valve and transported to the oil outlet pipe via the oil-extracting pipe during the oil delivery process, and the negative pressure in the oil drum makes the outside air enter into the oil drum through the one-way valve when the oil pumping is completed, so as to maintain the pressure balance between the inside and outside of the oil drum.
1. An electric oil pump with an one-way valve, comprising: a control box ( 1 ), the control box ( 1 ) is provided with a communication pipe ( 2 ) and a control board (C), one end of the communication pipe ( 2 ) is connected with an oil-extracting pipe ( 3 ), an other end of the communication pipe ( 2 ) is connected with an oil outlet pipe ( 4 ), a pump body ( 5 ) electrically connected with the control board (C) is arranged in the oil-extracting pipe ( 3 ), and a bottom of the control box ( 1 ) is rotatably installed with a threaded cap ( 6 ), wherein the control box ( 1 ) is provided with an air inlet ( 7 ) communicated with the communication pipe ( 2 ) and an air inlet pipe ( 8 ) communicated with the bottom of the control box ( 1 ); an outside of the air inlet ( 7 ) is sleeved with a valve body ( 9 ), an upper end of the valve body ( 9 ) is provided with an air inlet cavity ( 11 ), a lower end of the valve body ( 9 ) is provided with an air outlet cavity ( 10 ), and a communication channel ( 14 ) is arranged between the air inlet cavity ( 11 ) and the air outlet cavity ( 10 ); the air inlet cavity ( 11 ) is equipped with a valve cover ( 12 ), the valve cover ( 12 ) is provided with a plurality of air inlet holes ( 13 ), a bottom of the valve cover ( 12 ) corresponding to a position of the air inlet holes ( 13 ) is provided with a sealing film ( 16 ), and the air outlet cavity ( 10 ) is movably equipped with a sealing ball ( 15 ) to block an opening of the communication channel ( 14 ).
2. The electric oil pump with the one-way valve according to claim 1 , wherein there is a gap between the sealing film ( 16 ) and the bottom of the valve cover ( 12 ).
3. The electric oil pump with the one-way valve according to claim 1 , wherein a top of the sealing film ( 16 ) is provided with a connecting boss ( 17 ), the valve cover ( 12 ) is provided with a mounting hole ( 18 ), and the connecting boss ( 17 ) is fixedly arranged in the mounting hole ( 18 ).
4. The electric oil pump with the one-way valve according to claim 1 , wherein the air outlet cavity ( 10 ) is provided with a sliding pipe ( 19 ), the sealing ball ( 15 ) is movably arranged in the sliding pipe ( 19 ), and the sliding pipe ( 19 ) is arranged on an inner side of the air inlet ( 7 ) after assembly.
5. The electric oil pump with the one-way valve according to claim 1 , wherein a top of the air inlet ( 7 ) is provided with an air inlet notch ( 20 ), and a bottom of the communication channel ( 14 ) is provided with a spherical opening ( 21 ) matching the sealing ball ( 15 ).
6. The electric oil pump with the one-way valve according to claim 1 , wherein the control box ( 1 ) is provided with a battery cavity ( 22 ) electrically connected with the control board (C).
7. The electric oil pump with the one-way valve according to claim 1 , wherein an infrared sensor (S) electrically connected with the control board (C) is arranged in an end of the oil outlet pipe ( 4 ).