Series diaphragm mechanism

Abstract

The invention discloses a series diaphragm mechanism, and relates to the technical field of diaphragm pumps. The series diaphragm mechanism comprises a diaphragm, a diaphragm seat, a supporting assembly, a first movable capsule and a second movable capsule. The diaphragm seat is provided with a first containing cavity, a second containing cavity and a third containing cavity, and the diaphragm seat is provided with a first channel communicating with the first containing cavity and second and third channels communicating with the second containing cavity; and the first movable capsule and the second movable capsule are connected in series, the first and second channels communicate with a first capsule cavity of the first movable capsule, and the third channel and the third containing cavitycommunicate with a second capsule cavity of the second movable capsule. The diaphragm mechanism has the beneficial effects that a diaphragm pump can realize long-time stable work, and the diaphragm mechanism cannot lose efficiency.

Description

technical field [0001] The invention relates to the technical field of diaphragm pumps, in particular to a series diaphragm mechanism of a diaphragm pump with check and anti-leakage functions. Background technique [0002] Diaphragm liquid pumps provide circular motion by the motor, and then the diaphragm in the liquid pump is reciprocated by a mechanical device, thereby compressing and stretching the air in the pump cavity. There is a pressure difference between the water inlet and the external atmospheric pressure. Under the action of the pressure difference, water is pressed into the water inlet and then discharged from the water outlet. This diaphragm liquid pump has been well applied in occasions such as small household appliances and medical equipment. [0003] An existing diaphragm pump consisting of a motor, an eccentric wheel, a steel needle, a curved rod, a lower seat, a bell seat, a bell, a middle plate, an umbrella, a diaphragm, an upper cover, and a circlip; ,...

AI Technical Summary

Problems solved by technology

[0005] (1): The existing diaphragm pump itself does not have a check system, and a single check valve needs to be connected externally, which results in large volume, high cost and low assembly efficiency

[0006] (2): The existing diaphragm pump uses 2 umbrella valves and 1 diaphragm as the water inlet and outlet system. The umbrella valve is easy to stick, which may cause the opening pressure of the pump to be too high or the umbrella valve cannot be opened; and the umbrella valve The ability to pass foreign matter is poor. In the actual use process, foreign matter particles of various sizes will be mixed in the water. When the water pump passes through the water, the umbrella valve is easy to absorb particles, causing the inlet and outlet to be blocked, so that the diaphragm pump cannot work.

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