A low-flow and double-outlet electromagnetic plunger pump, comprising a pump body (1), a pump cover (2), a balance disk (3), a jacking spring (4), plunger pipes (5), plunger seats (6), plunger springs (7), plunger sleeves (8), plunger balls (9), plunger seal rings (10), an overflow pipe (11), an overflow grid (12), an electromagnetic assembly, a pressure control assembly and anti-backflow assemblies, wherein a pump cavity (13) is arranged in the pump body (1), the pump cover (2) is fixedly arranged on the pump body (1) and is hermetically fitted with the pump cavity (13), and an inlet port (14) and an outlet port (15) penetrate through and are arranged on a side wall of the pump cavity (13);
- the inlet port (14) is arranged opposite to the outlet port (15), the pressure control assembly is hermetically and fixedly arranged on the outlet port (15), and an end portion of the overflow pipe (11) is hermetically and fixedly arranged on the inlet port (14);
- an interior of the overflow pipe (11) is hermetically and fixedly arranged with an overflow grid (12), the interior of the overflow pipe (11) is arranged with a narrow-neck channel (16), and the narrow-neck channel (16) is arranged between the overflow grid (12) and the pump cavity (13);
- the balance disk (3) is slidably arranged in the pump cavity (13) and cooperates with an inner wall of the pump cavity (13), the electromagnetic assembly is hermetically and fixedly arranged on the pump cover (2) and is configured to drive the balance disk (3) to slide, a lug boss (17) cooperating with an end surface of the balance disk (3) is hermetically and fixedly arranged at a middle position of a bottom of the pump cavity (13), and a first blind hole is arranged on the lug boss (17);
- one end of the jacking spring (4) is arranged in the first blind hole, the other end of the jacking spring (4) is in contact with the balance disk (3), several balance channels (18) penetrate through and are arranged on the balance disk (3), and two oil filling channels (19) parallel to a moving direction of the balance disk (3) are arranged on the bottom of the pump cavity (13);
- the anti-backflow assemblies are hermetically and fixedly arranged on outlets of the oil filling channels (19), one end of the plunger pipe (5) is slidably arranged in the oil filling channel (19) and cooperates with the oil filling channel (19), and the plunger seal rings (10) are arranged between an inner wall of the oil filling channel (19) and an outer wall of the plunger pipe (5);
- the other end of the plunger pipe (5) is fixedly arranged in the balance disk (3), and an oil passing channel (20) is arranged in the plunger pipe (5);
- one end of the oil passing channel (20) is communicated with the oil filling channel (19), the other end of the oil passing channel (20) is communicated with the pump cavity (13), and the plunger seat (6) is fixedly arranged in the oil passing channel (20);
- one end of the plunger spring (7) is arranged on the plunger seat (6), and the other end of the plunger spring (7) is in contact with the plunger ball (9) slidably arranged in the oil passing channel (20);
- and the plunger ball (9) is hermetically fitted with an end portion of the plunger sleeve (8), the plunger sleeve (8) is hermetically and fixedly arranged on an inner wall of the oil passing channel (20) and is arranged close to a side of the pump cavity (13), a first through-hole penetrates through and is arranged in the plunger sleeve (8), and a second through-hole penetrates through and is arranged on the plunger seat (6).