| 摘要 |
PURPOSE: An antifreezing service connection tap including a length control function is provided to easily change and repair when the service connection tap is damaged by varying the length of the antifreezing service connection tap according to the depth of a pipe in which a water pipe is embedded. CONSTITUTION: A heat insulation case of an antifreezing service connection tap including a length control function is comprised by being divided into a lower case (10), an upper case (6), and a plurality of connection pipes (12,13). The lower case and the connection pipes include a short protrusion (20), and a support protrusion (21) is included in the connection pipe. A hanging protrusion (22) is installed in the upper case and the connection pipe. A water pipe is connected to a male screw (7) of the lower case, and the short protrusion is laminated on the hanging protrusion according to the length of the water pipe. A support body is inserted into the connection pipe and the upper part of the water pipe after the length of the heat insulation case is fitted.
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