3results about How to "Avoid repair work" patented technology

The utility model relates to the technical field of building heat preservation, and particularly discloses a building outer wall structure which comprises mechanical self-tapping ground anchors used for penetrating through building gridding cloth to reinforce a heat preservation layer of a building outer wall. The mechanical self-tapping anchor comprises a round metal anchor disc, a round metal screw, a round metal screw expansion head, a round metal threaded sleeve and a threaded anti-shaking rod. A round metal screw is fixedly installed in the middle of the round metal anchor disc and fixedly connected with a round metal screw expansion head, and the round metal screw expansion head is far away from the round metal anchor disc. The circular metal threaded sleeve is connected with the circular metal screw rod in a plugging manner; and a plurality of threaded anti-shaking rods are fixedly mounted on the edge of the circular metal anchor disc. Safety accidents caused by a heat preservation layer of a building outer wall after an earthquake can be reduced.

The utility model discloses a kind of super-thick prefabricated thermal insulation wallboard installation fixed components, including prefabricated GLC board and cast-in-place concrete beam, the lower portion of cast-in-place concrete beam is provided with embedded part, and the upper portion of prefabricated GLC board is connected with cast-in-place concrete beam by cast-in-place concrete beam bottom embedded part. The middle of the prefabricated GLC board is provided with thermal insulation layer, fixed screw rod is inserted into prefabricated GLC board from thermal insulation layer side, and the inner side of GLC board is provided with connecting piece, connecting piece is L-shaped, top and cast-in-place concrete beam bottom embedded part are connected, fixed screw rod is threaded through prefabricated GLC board and passes through connecting piece, and is fastened using nut. The super-thick prefabricated thermal insulation wallboard installation fixed component can realize the quick installation and fixation of super-thick prefabricated wallboard, is convenient and fast for construction, green and environmental protection, and is conducive to prefabricated wallboard installation quality control.

The utility model discloses a precise bevel gear rack with improved structure, including head part, tooth piece and tail part, be equipped with a plurality of tooth pieces between head part and tail part, and a plurality of tooth pieces mutually insert and connect, the utility model discloses after connecting tooth piece through head part, the second insert block of tooth piece, second insert post respectively insert into the first insertion slot and the first column slot of another tooth piece, and the second insertion slot of tooth piece, second column slot insert the first insert block and the first insert post of another tooth piece, while the second V type slot of tooth piece and the first V type slot of another tooth piece merge, and after merging, insert the rectangular bolt in the inside, adopt the cooperation of the mortise and tenon structure in bevel gear, so that tooth piece can be replaced alone, avoid the tedious repair work when tooth collapses, increase the service life of whole bevel gear.