The utility model relates to the technical field of
building construction, and discloses a building reserved hole temporary plugging device which comprises a sealing disc, the bottom of the sealing disc is fixedly connected with a plugging
pipe, the outer wall of the plugging
pipe is provided with evenly-distributed containing grooves, and the inner walls of the containing grooves are fixedly connected with air bags. An intercommunication
pipe is fixedly connected between the multiple air bags, air conveying grooves which are evenly distributed are formed in the sealing disc, the top of the front air bag is fixedly connected with a second one-way
air core, the top of the rear air bag is fixedly connected with a first one-way
air core, and sealing assemblies are arranged at the two ends of the sealing disc. According to the utility model, under the mutual cooperation of the sealing disc, the plugging pipe, the accommodating groove, the air bag, the intercommunication pipe, the air transmission groove, the one-way
air core I and the one-way air core II, the plugging device can be repeatedly used and can play a role in multiple items or multiple times of use, so that the cost of frequently
purchasing a
new device is reduced, and meanwhile, the plugging device can be quickly mounted and removed; and the construction efficiency is improved.