Adjustable pressure plate for filter

Abstract

The invention discloses an adjustable pressure plate for a filter, and relates to the technical field of filters. A screw sleeve is mounted on an upper end of a fixing plate, a fixing bolt is insertedinto a through hole of a pressure plate body and is fixed in the thread sleeve, a buffer spring sleeves on a lower side of the fixing bolt, a screw body is inserted in the other end of the pressure plate body, an adjusting nut is installed on the upper end of the screw body, a reset spring sleeves on the lower side of the screw body, and an antiskid plate is installed on the lower end of the screw body. The adjustable pressure plate can realize fast fixing and adjustment, can realize rapid pressing, can improve stability, and can realize rapid damping and resetting, and high efficiency.

Description

Technical field:

[0001] The invention belongs to the technical field of filters, and in particular relates to an adjustable pressure plate used for filters. Background technique:

[0002] A filter is a filter circuit composed of capacitors, inductors and resistors. The filter can effectively filter the frequency point of a specific frequency in the power line or frequencies other than this frequency point to obtain a power signal of a specific frequency or eliminate a power signal of a specific frequency. A filter is a device or circuit that processes signals. Filters are divided into active filters and passive filters. The main function is: let the useful signal pass through without attenuation as much as possible, and attenuate the useless signal as much as possible. The filter generally has two ports, one input signal and one output signal. Using this feature, a square wave group or composite noise passing through the filter can be selected to obtain a sine wave of a s...

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