Water pipe anti-freezing test tool for constructional engineering

The utility model discloses a water pipe anti-freezing test tool for constructional engineering. The water pipe anti-freezing test tool comprises a support, a sliding groove, a clamping plate, a sliding block, a rotating handle, a screw rod, a screw ring, a first top seat, a lower clamping seat, a second top seat, an upper clamping seat and a bolt cover. During use, a to-be-tested water pipe is placed on the first top seat and the second top seat and is clamped and fixed; opening plug cover, water flow is conveyed into the water pipe; the water pipe is filled with water; after the freezing time reaches 24 hours, the device is taken out to be unfrozen, the hydrant cover is opened to pour out water flow, the device is connected with an air pump through internal threads of a cylinder matchedwith the hydrant cover, the device is placed in water, whether bubbles leak or not is observed, and if yes, it shows that the water pipe is unqualified, and if not, it shows that the anti-freezing capacity of the water pipe i