Title:
TAP FOR PREVENING FREEZING AND BURSTING
Document Type and Number:
WIPO Patent Application WO/2015/088253
Kind Code:
A1
Abstract:
Disclosed is a tap (100) for preventing freezing and bursting. The present invention comprises: a guide part (110) which is connected to an external pipe; a valve body part (120) which is connected to the guide part (110) and which has a flow channel (121) through which tap water flows formed therein; an opening and closing part (130) which is inserted into the valve body part (120) and which opens and closes the flow channel (121) of the valve body part (120); and a freezing and bursting prevention part (140) which is installed in the guide part (110) and which selectively discharges the tap water in the guide part (110) and the valve body part (120) to the outside. The freezing and bursting prevention part (140) is equipped with: a storage part (141) which is installed vertically in the guide part (110) and stores tap water therein; a variable length part (142) which is installed in the storage part (141) so as to be fixed to same, and is formed from a shape memory alloy, the length of which changes in response to temperature; and a moving part (143), which has part thereof inserted into the storage part (141), has the variable length part (142) attached thereto, linearly moves the storage part (141) in accordance with the length change of the variable length part (142), has a discharge hole (143d) for discharging tap water to the outside formed therein, and exposes the discharge hole (143d) to the outside of the storage part (141) when the length of the variable length part (142) changes.
Inventors:
KIM JAE IL (KR)
KIM YONG HYEON (KR)
KIM YONG HYEON (KR)
Application Number:
PCT/KR2014/012164
Publication Date:
June 18, 2015
Filing Date:
December 10, 2014
Export Citation:
Assignee:
UNIV DONG A RES FOUNDATION (KR)
International Classes:
E03B7/10; E03C1/04; F16L53/00
Foreign References:
| KR20100114958A | 2010-10-27 | |||
| KR100716544B1 | 2007-05-10 | |||
| KR20130016486A | 2013-02-18 |
Attorney, Agent or Firm:
KIM, SUNG-HYUN (KR)
김성현 (KR)
김성현 (KR)
Download PDF: