2results about How to "Improve waterproof quality" patented technology

The utility model provides a water stop device for post-pouring zone, include: a plurality of prefabricated board, each prefabricated board is in contact sealed with two building body's lateral surface, and a plurality of prefabricated board is sequentially arranged and sealed connection along the extension direction of post-pouring zone and is integrated, and post-pouring zone is covered. The utility model can effectively prevent leakage and rainfall to cause rust to the reinforcement inside post-pouring zone, keep the inside environment of post-pouring zone neat, need not to maintain post-pouring zone, reduce maintenance cost and subsequent construction risk.

The utility model relates to the field of bluetooth headset with waterproof dustproof structure's bluetooth headset, including earphone shell, the bottom of earphone shell is equipped with battery compartment, the outside of earphone shell is connected with seal cover, waterproof film is inserted in the inside of earphone shell and seal cover, dustproof screen is equipped in the inside of the sound outlet of earphone shell and seal cover, the bottom of battery compartment is connected with sealing cover, the inside of battery compartment is inserted with battery, the inside of sealing cover is inserted with contact, the top of sealing cover pastes with sealing washer, the lower side of sealing cover's inner wall inserts the conical ring with, through the dustproof screen of adding in the sound outlet of earphone shell and setting up waterproof film in the inside of earphone shell, has promoted the waterproof quality of bluetooth headset, can simultaneously through the sealing washer and conical ring of adding, can carry out the sealing between the gap of sealing cover and battery compartment.