Patent ID: 9664227
Date: 2017-05-30
CPC Classifications: A47G,A47K,F16B,F16M

Claim:
1. A vacuum retaining device capable of reuse, comprising: a pull member made of a hard rigid plastic material, the pull member having a pull rod, one end of the pull rod being formed with a pull plate; a sucking disk member comprising a sucking disk body and a sealing rim; the sucking disk body being made of a flexible elastic macromolecule material and integrally formed with the pull plate of the pull member by injection molding when the pull member is placed in a plastic mold, the sucking disk body being a soft disk-shaped elastic body and having a covering portion to cover the pull plate, a lower edge of the covering portion being enlarged and formed with a disk surface portion, an outer periphery of the disk surface portion being formed with a coupling edge portion; a bottom of the disk surface portion being formed with a suction surface portion, the sealing rim being made of a TPS (Thermoplastic Styrene Elastomer) plastic material and integrally formed with the coupling edge portion of the sucking disk body by over-molding in a plastic mold, the sealing rim being a soft elastic rim with high elongation rate and having a hardness of Shore C 20-30 degrees, the sealing rim having an upper rim portion, a side rim portion, and a bottom rim portion to cover and connect with the coupling edge portion, an upper surface of the upper rim portion being formed with a compression surface, a lower surface of the bottom rim portion being formed with a sealing surface located next to the suction surface portion of the sucking disk body; a press member made of a hard material and having high strength, a bottom of the press member having a press surface portion corresponding to the compression surface of the sealing rim for the compression surface to lean against the upper rim portion, the press surface portion having an accommodation room therein to accommodate the sucking disk body, the press member having a through hole above the accommodation room for the pull rod of the pull member to pass therethrough, a space being formed between the through hole and the covering portion of the sucking disk body; and a fastening operation member leaning against an upper end of the press member and being connected with the pull rod of the pull member out of the through hole; wherein the coupling edge portion at the outer periphery of the disk surface portion of the sucking disk body of the sucking disk member has an inverted L shape, the sealing rim covers and connects with the coupling edge portion, and the sealing rim has a buckle portion to buckle a rear edge end surface of the coupling edge portion such that the sealing rim covers and retains the coupling edge portion of the sucking disk body stably, and secures to the disk surface portion of the sucking disk body.