DRAINAGE SYSTEM

• Main Author: HARA KAZUYA
• Format: Patent
• Language: English; Japanese
• Published: 15.10.2020
• Subjects: DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; FIXED CONSTRUCTIONS; SEWERAGE; SINKS; WATER SUPPLY

To provide the drainage system that can realize miniaturization, cost reduction, and stable operation of a check valve.SOLUTION: The drainage system consists of a waterproof pan 2 on which a bathtub, that is equipment, is placed, and a drain trap 3 as a drainer, and a drain trap 3 has an elbow member 4 attached to a bathtub side waterproof pan 21. The elbow member 4 is covered by a cover part 5, and the cover part 5 is opened with a first inflow port A into which drainage from the bathtub as the equipment flows in, and a second inflow port B in which the drainage from the bathtub-side waterproof pan 21 flows in. Further, a valve body 61 having a fixing part 62 fixed in a drainage flow path and an opening/closing part 63 formed around the fixing part 62 is attached to the second inflow port B, and the valve body has a substantially T-shaped cross section made of an elastic soft material such as rubber or silicon.SELECTED DRAWING: Figure 2 【課題】小型化や低コスト化、安定した逆止め弁の作動を実現できる排水装置を提供する。【解決手段】設備機器である浴槽が載置された防水パン２と、排水器としての排水トラップ３から成る排水装置であって、排水トラップ３は浴槽側防水パン２１に取り付けられるエルボ部材４を有している。エルボ部材４は蓋部５によって覆われており、当該蓋部５は設備機器としての浴槽からの排水が流入する第一流入口Ａと、浴槽側防水パン２１からの排水が流入する第二流入口Ｂが開口されている。又、第二流入口Ｂにはゴムやシリコン等の弾性を有する軟質材から成る断面視略Ｔ字形状であって、排水流路内に固定される固定部６２と、固定部６２の周囲に形成された開閉部６３から成る弁体６１が取り付けられている。【選択図】図２