3results about How to "Improve ventilation performance" patented technology

The invention belongs to the field of constructional engineering, and provides a construction method of a triangular shaped operation platform of a high-rise elevator shaft, which comprises the following steps: S1, prefabricating platform components; s2, a preparation stage; s3, hoisting preparation; s4, balanced hoisting and initial positioning; s5, double anchoring and fixing; s6, a safety protection system is installed; s7, joint acceptance and starting; and S8, layered turnover lifting. Compared with the prior art, the operation platform has the advantages that by adopting a triangular shaped channel steel operation platform structure and combining a double anchoring mechanism of door opening lower edge clamping and elevator shaft rigid abutting, the problems that a traditional super high-rise elevator shaft operation platform is poor in universality, insufficient in stability and low in construction efficiency are solved; standardized protection systems such as hard isolation, a soft bag net and a load limiting mark are integrated, and comprehensive safety protection during construction operation is provided.

The utility model discloses a connecting head and hanging chair cooperation installation structure, including hanging chair and at least two installation on the connecting head of support, the connecting head includes sleeve and a plurality of firm piece, firm piece lower extreme is fixedly connected with sleeve, the hanging chair is close to the side of connecting head and is provided with the lug, and the lug is hung in firm piece and is installed on the connecting head with hanging chair, the utility model breaks through the mode of original hooking or winding knot, can quickly hang the lug in firm piece and realizes the installation of hanging chair on the connecting head, or quickly takes down the lug from firm piece and realizes the separation of hanging chair and connecting head, and the simple operation is good in user experience, and the use effect is good.

This invention relates to the field of safety protection technology and discloses a fall prevention device for a steel structure skylight opening. The device includes a supporting steel frame and a detachable supporting net. The supporting steel frame is installed on one side of the skylight opening, and the supporting net is movably connected to the lower end of the supporting steel frame. The supporting steel frame is an "I"-shaped steel frame, and the supporting net is connected to a retaining beam tie member, which is a concave shape. The horizontal steel below the "I" of the supporting steel frame is inserted into the retaining beam tie member. This invention has the advantages of allowing the supporting net to be lowered from the supporting steel frame, preventing it from being tightly attached to the skylight, thus increasing ventilation. Furthermore, the supporting net is detachable, making it easy to clean debris that falls onto the supporting net during wind.