Helical brush

Abstract

An improved rotary helical brush comprising a rotary axle and two helical brushing members slipping over the rotary axle, the helical brushing members are planted with bristles on surfaces of their corresponding continuous helical frames and are assembled by rotating in mutual contrary directions. The rings of one of the two helical brushing members are arranged alternately relative to rings of the other helical brushing member, the degrees of inclination of bristles on every ring of the helical frames are increased to increase the contact areas between the bristles on each ring and the surface of a plate being cleaned. Thereby the rotary axle rotates slower to reduce the centrifugal force and vibration, and thereby scrapes created on the surface of a plate can be reduced.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an improved rotary helical brush for cleaning the surface of a plate, and especially to an improved rotary helical brush having a helical brushing member.[0003]2. Description of the Prior Art[0004]There have been various rotary sweeping or brushing implements; typical implements of such kind are glass curtain wall cleaning apparatuses for buildings, or cleaning apparatuses for science and technique industry etc., in which the rotary sweeping or brushing implements are moved on surfaces of plates in use to remove dirt.[0005]FIGS. 1 and 2 show a normally used rotary brushing implement which has a helical brushing member 92 slipping over a rotary axle 91; the helical brushing member 92 is planted with bristles 922 on the surface of a continuous helical frame 921. The helical brushing member 92 is rotated by the rotary axle 91 to make the bristles 922 move on the surface of a plate being cle...

AI Technical Summary

Benefits of technology

[0007]In view of the above defects of conventional techniques, the present invention provides an improved rotary helical brush comprising a rotary axle and a first and a second helical brushing member slipping over the rotary axle, thereby rotating of the rotary axle moves and rotates the two helical brushing members; the two helical brushing members are planted with bristles on surfaces of their corresponding continuous helical frames and are assembled by rotating in mutual contrary directions, thereby the rings of the first helical brushing member are arranged alternately relative to rings of the second helical brushing member. The degrees of inclination of bristles on every ring of the helical frames are increased to increase the contact areas between the bristles on each ring and the surface of a plate being cleaned.

[0008]The present invention provides an improved rotary helical brush with which the contact area between the bristles on each ring of the helical frames with the surface of the plate being cleaned is increased, hence the rotary axle rotates slower to thereby reduce the problem of the centrifugal force of the helical brushing members and vibration, and thereby scrapes created on the surface of a plate can be reduced.

[0009]And more, in the improved rotary helical brush provided in the present invention, bristles on one of the helical brushing members can be substituted by sponge to increase the water suction force of the helical brush.

Problems solved by technology

When a science and technique product (such as a panel of a display) is cleaned, such scrapes may create serious optical defects that must be solved.

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