Patent ID: 6328812
Filing Date: 2001-12-11
Classification: B08B,B24C

Abstract:
A pipeline-cleaning device A, having a storage tank filled with some rigid granules, which comprises a filter net unit disposed at its lower portion with a filter net in mesh size smaller than the granules and a filter unit disposed at its upper portion, being connected with pipe couplings, couplings of a pressure control device, and a second pipeline-cleaning device A' to form a sealed circuit, in which the filter net unit comprises:a lower minor cap having a center through hole with a flange at its one end and an internal thread at the other for screw-coupling with an external thread of a T-shape lower seat;a pipe coupling in T-shape having a center through hole, wherein an circular groove is disposed at its right end for loading a leakage-proof washer; the right end is a plane body with a wider upper rim for pressing against the flange when said pipe coupling is inserted to joint with said lower minor cap; a middle segment of said pipe coupling is offered with two center plane faces and two lateral spherical faces; and an external thread formed at a lower left end of said pipe coupling is for screw-jointing with a pipeline pending cleaning;a filter rod composed of a screw-joint body, a rod body, and a nut, wherein said screw-joint body further comprises an external thread at a left side of its circumference screw-jointed with an internal thread at a right end of said T-shape lower seat, a circular smooth face with a shorter diameter than that of said left external thread at its right side, a center through hole formed inside, an internal thread at its right end for screw-jointing with an external thread at the left side of said rod body, which comprises a plurality of through holes distributed around its circumference adjacent to said external thread at its left end, a plurality of channel formed in center portion along axial direction, said external thread at its left end and an external thread at its right end for screw-jointing with said internal thread of said screw-joint body and an internal thread of said nut respectively; said rod body is clothed in a filter net; said conic nut having said internal thread formed at its bottom end is screw-jointed with said external thread on said rod body;a lower major cap having a center through hole, a flange at its one end, and an internal thread at the other is screw-jointed with a left end of said storage tank;the T-shape lower seat having an external thread at its right end for screw-jointing with said lower minor cap, wherein a center through hole is tapered toward its right end where an internal thread is formed for coupling with said external thread of said screw-joint body of said filter rod; andthe storage tank in shape of a hollow cylinder is female-jointed to a cylindrical body in shape of a hollowed cylinder for said filter rod to penetrate and reside therein, and in both respective openings of said cylindrical body, a leakage-proof washer with a flange is inserted for preventing leakage of inside liquid, an external thread is formed at two outer ends of said storage tank respectively for screw-jointing with said lower major cap and an upper major cap;the filter unit comprises:a T-shape upper seat composed of a center through hole extended rightward to form a receptacle space for placing an elastic element, an circular groove formed at an inner portion of its right end for female-jointing with a leakage-proof, and an external thread formed at an outer face of its right end for screw-jointing an internal thread of an upper minor cap;the upper major cap containing a center through hole having a flange at one end and an internal thread at the other for screw-jointing with the right end of said storage tank;an anti-reverse piece being a polygonal body provided with a circularly threaded groove for holding said elastic element placed thereon and a recessed plane at its right end;a filter socket formed with a circular groove for collaring a leakage-proof washer, a plurality of small through holes disposed staggeringly and circularly in middle portion at its right end for filtering out bigger granules of varia, and a protruded center through hole for female-jointing with a center through hole of a filter;an anti-reverse ring in conic shape formed with a circularly threaded groove in its outer right side for retaining an elastic element, and a conic ring body at its left end for choking a plurality of relatively bigger through holes to prevent the filtered out dirt and sediment from leaking through the same;the filter formed with an internal center through hole, which is extended rightward to form a protrusive body with a plurality of small through holes disposed in cylindrical face thereof, the plurality of circularly arranged bigger through holes in an inner rim of said filter, and a circular groove recessively disposed at its left side for female-mounting a leakage-proof washer;a pipe coupling in T-shape formed with a center through hole, which is extended rightward to form four protruded pillars with a respective space for pressing against an anti-reverse ball, said pipe coupling tapered downward to form a coupling body with a wider upper part and a narrower lower part, and an external thread formed at an upper left end on the pipe coupling for screw-jointing with said pipeline pending cleaning; and when it is coupled with said upper minor cap, a wider upper rim of said pipe coupling which will press against a flange of said upper minor cap; andthe upper minor cap formed with a center through hole, said flange at right end of said through hole, and an internal thread at its left end for screw-jointing with said external thread on said T-shape upper seat.