2results about How to "Avoid height difference" patented technology

This invention belongs to the field of modular prefabricated floor slab technology, and more particularly to a modular prefabricated building floor slab structure, including a floor slab body. Multiple locking mechanisms and multiple U-shaped reinforcing bars are equally spaced on both sides of the floor slab body. The locking mechanisms and U-shaped reinforcing bars on both sides of the floor slab body are centrally symmetrically distributed. Each locking mechanism includes a box detachably mounted on the floor slab body. Inside the box is a unidirectional rotating column, and two centrally symmetrically distributed levers are fixedly mounted on the side of the rotating column. This invention, by setting multiple sets of cooperating locking mechanisms and U-shaped reinforcing bars between adjacent floor slab bodies, applies active traction force to the slabs during splicing, creating reliable pre-stress at the joint, transforming "passive filling" into "active pressing," effectively overcoming the problem of penetrating micro-cracks caused by inconsistent drying shrinkage deformation in traditional post-cast strips.

The utility model discloses a fine positioning LED module screw subassembly of fine adjustment, relates to screw technical field, including the screw cap, and the screw hole is equipped in screw cap, still include the screw rod of fixed in the bottom of screw cap, and the screw rod is divided into the thread locking area and displacement active area, and the thread locking area is located the bottom of screw rod, and the displacement active area is located the top of thread locking area, and the diameter is less than thread locking area, and the gasket is closely combined with the bottom of screw cap, and the gasket is connected on the displacement active area, and the root base is fastened through the thread locking area, and the displacement active area realizes height accurate fine adjustment, and the gasket is comprehensive protection subassembly, and the fine adjustment part, the utility model discloses the fine adjustment part of design, when the LED module needs to adjust height position, make the movable calibration seat receive the external force drive effect, and then drive movable calibration seat to slide up and down along displacement active area and adjust, ensure that can be accurately regulated and controlled in the process of module installation and subsequent use, avoid the height difference of LED display module after installation.