Automatic controller for water pump

Abstract

The invention relates to an automatic controller for a water pump. The automatic controller comprises a shell, a diaphragm, a pressing rod assembly and a first sensor corresponding to the pressing rod assembly. The shell is provided with a water inlet and a water outlet. The water purifier further comprises a float valve and a second sensor. A control box is connected to the lower portion of the shell, electrically connected with the first sensor and the second sensor and used for being connected with the water pump and controlling starting and stopping of the water pump. The quick stop mechanism comprises a tooth part and an abutting part driving structure; the driving structure comprises a connecting piece and a gear assembly, the connecting piece is arranged on the pressing rod assembly, a tooth part is arranged on the connecting piece, and the tooth part and the tooth part are meshed with the gear assembly; after the shell is filled with water and the pressing rod assembly slides, the gear assembly drives the abutting piece to abut against the float valve and slide towards the position close to the second sensor. The quick stop mechanism enables the float valve to quickly fall back to the position close to the second sensor, and the water pump is quickly closed, so that the diaphragm is not easily damaged due to excessive deformation, and the service life of the automatic controller of the water pump is prolonged.

Description

technical field [0001] The present application relates to the field of water pumps, in particular to an automatic controller for water pumps. Background technique [0002] The automatic opening and closing of the water supply system of the water pump is usually controlled by the automatic controller of the water pump. The water pump is started or closed by opening or closing the faucet, and the starting pressure is set by the spring. The electromagnetic induction of the magnetic steel and the magnetic control element provides the signal to the controller. [0003] The invention patent application with the application publication number CN102767509A discloses an improved electronic pressure controller, which includes a middle body with a water inlet and a water outlet, a pressure membrane assembly arranged in the inner cavity of the middle body, and a pressure membrane assembly that is tightly pressed on the pressure membrane assembly. The pressure regulating rod assembly, th...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that when the faucet is closed, the flow at the water outlet stops, and the flow float valve assembly falls back through its own gravity to close the water pump. However, it takes a certain amount of time for the flow float valve assembly to fall back. During this time, The water pump is still on, causing the pressure membrane module to continue to fill with water, which may easily lead to excessive water pressure and damage the pressure membrane module, thereby reducing the service life of the electronic pressure controller

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