4results about How to "Tight fit" patented technology

This utility model relates to the field of foundation pit protection technology and discloses a protective device for water tank foundation pits. It comprises at least one set of two main protective railings, two connecting plates, and secondary protective railings equidistantly arranged between the two connecting plates. Movable seats are fixedly installed at equal intervals on the inner side of each connecting plate. This device achieves overall optimization of the protection system through a multi-layered reinforcement structure. The double-rib design built into the main protective railings forms a parallel reinforcement structure, effectively resisting the horizontal earth pressure on the sidewalls of the foundation pit. Experimental calculations show that under the same load conditions, the deformation of the railing is reduced by more than 40% compared to traditional single-layer structures. The hollow core slab uses a grid structure composed of reinforcing rib seats and reinforcing rib columns to form a three-dimensional support system. The diameter of the reinforcing rib columns is 1 / 3 to 1 / 2 of the height of the reinforcing rib seats, and the surface is provided with annular reinforcing ribs. This parameter configuration increases the compressive strength of the hollow core slab to over 8 MPa.

The utility model provides a kind of charging base of magnetic attraction lamp, belong to lamp holder technical field, including base, the upper center of base is equipped with docking groove, still including the lamp body of being inserted in docking groove, it is characterized by: the bottom two sides of lamp body are equipped with two insertion rods, and positioning hole is opened on the circumferential side wall of insertion rod, and the upper two sides of base are equipped with positioning mechanism, when lamp body is inserted in docking groove, positioning mechanism can be inserted into positioning hole, realize the limiting of insertion rod and the plug direction of lamp body;The utility model can limit the plug direction after lamp panel installation, realize double fixing by magnetic attraction and positioning mechanism, improve the stability of lamp panel and charging base connection, prevent lamp panel from appearing loose and falling off.

The utility model belongs to the technical field of rubber pipe joints, and particularly relates to an ultrahigh-pressure rubber pipe joint assembly, which comprises a pipe joint and a flange, and is characterized in that connecting parts are arranged on two sides of the pipe joint, slope structures with wide outsides and narrow insides are arranged on the connecting parts, and slope grooves matched with the slope structures are arranged on one side of the flange; the pipe joint comprises a framework layer, an inner rubber layer arranged in the framework layer and an outer rubber layer arranged outside the framework layer. A slope structure with the wide outer portion and the narrow inner portion is arranged on the connecting portion of the pipe connector and matched with the slope groove in the flange. Due to the design that the slope surface structure is wide outside and narrow inside, the connecting part can be firmly embedded between the flanges when being pressed, so that the compression resistance of the pipe joint is obviously enhanced, and the pressure grade of the whole rubber pipe joint is effectively improved.

The application belongs to the technical field of building construction, and particularly relates to a prefabricated elevator shaft inner wall anti-falling noise reduction plate and a mounting method, which comprises a noise reduction plate, cast-in-place concrete and an anti-falling connecting piece, the anti-falling connecting piece is horizontally arranged and embedded in the cast-in-place concrete, the noise reduction plate and the cast-in-place concrete are integrally formed through the anti-falling connecting piece, the noise reduction plate comprises a convex block plate and a concave groove plate, a plurality of convex block portions are arranged on the side surface of the convex block plate close to the concave groove plate, a plurality of concave groove portions corresponding to the convex block portions are arranged on the side surface of the concave groove plate, and the side surface of the concave groove plate away from the convex block plate is fixedly connected with the cast-in-place concrete through the anti-falling connecting piece; compared with the prior art, the application has the advantages and positive effects that the cost is low, the wall cost is reduced, the building wall noise reduction and structure integration can be realized, the building wall heat preservation and structure have the same service life, and the problems of high maintenance cost and high maintenance frequency of the traditional sound absorption and noise reduction system are solved.