| 摘要 |
PURPOSE: A check valve for a hot water mat is provided to improve the accuracy of using a lifting member to lift the pressure without using an air bladder operated by the level of change. CONSTITUTION: A check valve(1) for a hot water mat comprises an insertion frame, a joint pin, a first blocking plate(3), a partition(5) in a plate shape, a second blocking plate(4), a fixing cap(7), an assembling hole(19), and an anti-separation cap(9). A lower part of the anti-separation cap is opened in a cylindrical shape to block or discharge the water and expand the pressure while the lower part is inserted to the assembling hole and a discharge hole(8) is formed in the center of the upper surface. A lifting member(10) is formed inside the anti-separation cap. A space unit is formed between the upper piece and the lower piece around a center piece of the lifting member. |
