Filter equipment having simple and stable installation structure
A filter equipment includes a main body portion which has a hollow columnar structure with an open upper portion and a closed lower portion, and has a plurality of air inlets formed on a side surface to be spaced apart at regular intervals; a top cap which is detachably attached to an upper opening surface of the main body portion, and has a doughnut structure having a width corresponding to that of the filter portion in a plan view, a magnetic member attached to a lower surface of an air vent by a magnetically detachable structure being mounted on an upper surface of the top cap; a filter portion which has a hollow columnar structure corresponding to an inner peripheral surface of a main body portion, has a doughnut structure having a width corresponding to the lower surface of the top cap, has a structure that is in close contact with the lower surface of the top cap, purifies the air drawn in from the air inlet of the main body portion and then makes the purified airflow through a central opening portion of the top cap to the air vent; and a safety wire which is mounted inside the main body portion and extends by a predetermined length to be combined with one side of the top cap.
1. A filter equipment, comprising:
a main body portion ( 110 ) which has a hollow columnar structure with an open upper portion and a closed lower portion, and has a plurality of air inlets ( 111 ) formed on a side surface to be spaced apart at regular intervals;
a top cap ( 120 ) which is detachably attached to an upper opening surface of the main body portion ( 110 ), and has a doughnut structure having a width corresponding to that of the filter portion ( 130 ) in a plan view, a magnetic member ( 121 ) attached to a lower surface of an air vent by a magnetically detachable structure being mounted on an upper surface of the top cap;
a filter portion ( 130 ) which has a hollow columnar structure corresponding to an inner peripheral surface of a main body portion ( 110 ), has a doughnut structure having a width corresponding to the lower surface of the top cap ( 120 ), has a structure that is in close contact with the lower surface of the top cap ( 120 ), purifies the air drawn in from the air inlets ( 111 ) of the main body portion ( 110 ) and then makes the purified air flow through a central opening portion of the top cap ( 120 ) to the air vent; and
a safety wire ( 140 ) which is mounted inside the main body portion ( 110 ) and extends by a predetermined length to be combined with one side of the top cap ( 120 ),
wherein the filter portion ( 130 ) comprises:
a filtering member ( 131 ) which is formed with a large number of pores for adsorbing particulate foreign matter floating in the air, and is formed by being continuously bent into a doughnut shape on the basis of the center;
a state holding member ( 132 ) which is continuously mounted along an outer peripheral surface of the filtering member ( 131 ), and maintains the continuous bending structure of the filtering member ( 131 );
a filter upper end sealing portion ( 133 ) which is mounted on the upper surface of the filtering member ( 131 ), has a predetermined thickness, has the same plate-like structure as the upper surface of the filtering member ( 131 ) in a plan view, and is press-fitted to be in surface contact with the lower surface of the top cap ( 120 ) to seal the upper surface of the filtering member ( 131 ) and the lower surface of the top cap ( 120 ); and
a filter lower end sealing portion ( 134 ) which is mounted on the lower surface of the filtering member ( 131 ), has a predetermined thickness, has the same plate-like structure as the lower surface of the filtering member ( 131 ) in a plan view, and is press-fitted to be in surface contact with the upper surface of the main body portion ( 110 ) to seal the lower surface of the filtering member ( 131 ) and the upper surface of the main body portion ( 110 ),
wherein the air inlets ( 111 ) are formed to be spaced apart by a predetermined angle on the basis of the center of the main body portion ( 110 ) in a plan view, and
the air inlets ( 111 ) are formed to have an air flow path formed in a direction parallel to an arbitrary straight line passing through the center of the main body portion ( 110 ) in a plan view.
2. The filter equipment according to claim 1 ,
wherein the main body portion ( 110 ) includes
a bottom portion ( 112 ) which has a circular structure in a plan view, extends upward along an outer peripheral surface by a predetermined height and is integrally connected to a side wall portion ( 113 );
the side wall portion ( 113 ) which has a structure integrated with the outer peripheral surface of the bottom portion ( 112 ) and extends by a predetermined height to form an internal space of the main body portion ( 110 ); and
a plurality of fastening protrusions ( 114 ) which are formed on an outer peripheral surface of an upper portion of the side wall ( 113 ) to be spaced apart at a predetermined angle, and are combined with the fastening groove ( 125 ) of the top cap ( 120 ) to be attachable and detachable by a lateral rotation,
wherein the top cap ( 120 ) includes
a ceiling portion ( 123 ) of a plate-like doughnut structure which has the same outer diameter as the side wall portion ( 113 ) of the main body portion ( 110 ) in a plan view;
a first downward extending portion ( 124 ) which is integrated with an outer peripheral surface of the ceiling portion ( 123 ) and extends downward by a predetermined length to cover a part of the upper portion of the side wall portion ( 113 );
a plurality of fastening grooves ( 125 ) which are formed on an inner peripheral surface of the first downward extending portion ( 124 ) to be spaced apart at a predetermined angle, and are combined with the fastening protrusion ( 114 ) of the main body portion ( 110 ) to be attachable and detachable by a lateral rotation;
a second downward extending portion ( 126 ) which is continuously formed along an inner peripheral surface of a central through hole of the ceiling portion ( 123 ), and extends downward by a predetermined length to wrap a part of the upper portion of the filter portion ( 130 ); and
a sealing contact portion ( 122 ) which is mounted on the upper surface of the ceiling portion ( 123 ), has a structure that makes surface contact with the lower surface of the air vent, and is formed of a sealing material that comes into close contact with the lower surface of the air vent.
3. The filter equipment according to claim 1 ,
wherein the top cap ( 120 ) includes
sealing grooves ( 127 a ) which are concentrically formed on the basis of the center of the top cap ( 120 ) in a plan view, are spaced apart by a predetermined width, and are formed by two or three to be recessed by a predetermined depth;
a sealing member ( 127 c ) which is mounted on the sealing groove ( 127 a ) and seals the upper surface of the top cap ( 120 ) and the lower surface of the air vent;
a permanent magnet mounting portion ( 127 d ) which is mounted on the lower surface of the top cap ( 120 ), mounts a plurality of plate-like first permanent magnets ( 127 e ) to be spaced apart by a predetermined angle on the basis of the center of the top cap ( 120 ) in a plan view, and fixes N and S poles of the first permanent magnets ( 127 e ) to be alternately arranged along the circular structure of the top cap ( 120 ) in a plan view;
a sliding thin plate portion ( 127 f ) which has a thin plate structure stacked on a lower surface of the permanent magnet mounting portion ( 127 d ), and guides the permanent magnet mounting portion ( 127 d ) and the magnetic variable portion ( 127 g ) to be slidable relative to each other and to change the positions;
a magnetic variable portion ( 127 g ) which is stacked and placed below the sliding thin plate portion ( 127 f ), is mounted to be rotatable by a predetermined angle on the basis of to the center of the top cap ( 120 ) in a plan view, mounts a large number of plate-like second permanent magnets ( 127 h ) to be spaced apart by a predetermined angle on the basis of the center of the top cap ( 120 ) in a plan view, and fixes the N poles and S poles of the second permanent magnet to be alternately arranged along the circular structure of the top cap ( 120 ) in a plan view;
a handle portion ( 127 i ) which is formed to protrude laterally from an outer peripheral surface of the magnetic variable portion ( 127 g ) by a predetermined length, and is gripped by a user's finger to rotate the magnetic variable portion ( 127 g ) by a predetermined angle; and
a rotation angle limiting structure which is mounted on one side of the top cap ( 120 ) to define a home position rotation angle range of the magnetic variable portion ( 127 g ).