2results about How to "Quick fit connection" patented technology

This invention discloses a mounting structure for a commercial vehicle's upper step assembly, including a cab-end step front mounting bracket assembly, a cab-end step rear mounting bracket assembly, and a chassis-end step mounting bracket assembly. The cab-end step front mounting bracket assembly includes a first main body, which is formed by bending tubing. The chassis-end step mounting bracket assembly includes a second main body, with a first bent pipe connected to one end face of the second main body, and two second bent pipes connected to the same end face. The second main body is fixed to the chassis-end step via a third upper connection point, a third middle connection point, and the second bent pipes are fixed to the chassis-end step via a third lower connection point. This invention improves the connection strength of the step assembly mounting structure while ensuring its performance.

The utility model discloses a dust-free device for rapidly and accurately cutting aerated blocks, the four corners of the top of a bottom cutting table are detachably connected with a top frame through connecting square pipes, a hydraulic cylinder is installed in the middle of the inner side of the top frame, and the telescopic end of the bottom of the hydraulic cylinder is fixedly connected with a cutting tool apron; the bearing table can slide on the bottom cutting table in a sliding mode through the sliding rail and the rail groove, the positions of the bearing table and the aerated block placed on the inner side of the bearing table can be conveniently and rapidly adjusted, the bearing table drives the mark pointer to move when moving, and the aerated block can be conveniently and rapidly cut. The cutting position of the aerated block is precisely positioned by means of the alignment scale marks, the size precision of the aerated block after follow-up cutting is ensured, meanwhile, the cutting position of the aerated block can be verified before cutting by means of the horizontal ray lamp at the cutting pressing knife, and the cutting precision of the follow-up aerated block is further ensured.