3results about How to "Increase support length" patented technology

This invention provides a precast concrete trough slab combined with a steel support beam reinforcement component and method. The reinforcement component includes a combined steel support beam, which consists of a T-shaped steel beam and two steel plates. The web of the T-shaped steel beam passes through the joint between the two precast concrete trough slabs from bottom to top. Steel plates are fixed to both sides of the web of the T-shaped steel beam. Two connecting supports are provided, which are respectively connected to both ends of the combined steel support beam. The bottom of the connecting supports is installed at the top of the load-bearing wall. This reinforcement component significantly improves the load-bearing capacity of the precast concrete trough slab without increasing the weight of the floor slab, without changing the stress mode of the precast concrete trough slab or the stress mode of the transverse walls in the structure. It increases the support length of the precast concrete trough slab, meeting current specifications, and adds tie steel bands to improve overall integrity, avoiding the risk of floor slab detachment and collapse during earthquakes.

The application relates to a kind of annular bracket stiff concrete beam column node construction device and construction method, including beam column construction mechanism and construction driving mechanism;Beam column construction mechanism includes multiple construction frames, multiple construction frames are arranged side by side between. First gear and second gear are driven to transmit by motor, so that second gear drives rotating rod and connecting column to rotate, connecting column drives another second gear to rotate by sleeve, so that two second gears and two gear ring assemblies are driven, two gear ring assemblies can drive steel beam column to rotate by locking assembly, the surface of steel beam column can be conveniently laid on steel beam column by workman in multiple faces, avoid subsequent still need to carry out steel beam column hoisting to adjust angle and continue construction, lead to the problem of tedious, so as to improve construction efficiency;Extension assembly is connected by slider and sliding sleeve and construction frame, so that construction frame can be unfolded by extension assembly, so as to extend the support length of steel beam column.

This utility model belongs to the field of furniture technology, specifically relating to a footstool structure and a sofa frame. The footstool structure includes a fixed frame and an extended frame, which are connected by a folding mechanism; the folding mechanism includes a first connecting member, a second connecting member, and a connecting spring. Through the design of the folding mechanism, this utility model not only increases the leg support length but also offers advantages such as effortless operation and rapid response.