Filtration device and water purifier

Abstract

The invention relates to a filtering system, and discloses a filtering device and a water purifier. In the present invention, the filter device includes a shell, which houses a filter element for filtering liquid; a neck, which is connected with the shell, and a gas storage area for communicating with the atmosphere is provided in the neck; a shaft assembly, partially inserted into the neck, and inserted along The direction is slidably matched with the neck, and there is a passage for liquid to pass through the shaft assembly; when the neck moves towards the base, the shaft assembly is partially inserted into the base, and is also used to move the neck to the first preset position When the neck is closed, it forms a seal with the neck, blocking the gas storage area and the channel; when the shaft coupling moves from the first preset position to the direction away from the base, a negative pressure is formed between the neck and the base, and when the neck moves to In the second preset position, it is separated from the neck, communicates the gas storage area with the channel, and eliminates the negative pressure formed between the base and the base. Compared with the prior art, the filter device can be removed from the water purifier more easily, and the user is more convenient to use.

Description

technical field [0001] The invention relates to a filter system, in particular to a filter device and a water purifier. Background technique [0002] The filter device is installed on equipment such as water purifiers to filter water and other liquids to remove impurities. The existing filter device is installed on the base of the water purifier, and the liquid to be filtered in the water purifier passes through the base to filter in the filter device, and then flows back through the base to the water storage area. After the filter device is used for a long time, the filter element will be blocked by impurities or need to be replaced when the service life is reached. But the inventor finds that, in order to prevent water from entering the inside of the machine when changing the filter element, a one-way valve is often set on the base of the water purifier and the filter element; Negative pressure is formed in between, making it extremely difficult to replace the filter ele...

AI Technical Summary

Problems solved by technology

After the filter device is used for a long time, the filter element will be blocked by impurities or need to be replaced when it reaches the service life

But the inventor finds that, in order to prevent water from entering the inside of the machine when changing the filter element, a one-way valve is often set on the base of the water purifier and the filter element; Negative pressure is formed in between, making it extremely difficult to replace the filter element, or even impossible to replace, which brings inconvenience to users

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