2results about How to "Lightweight and flexible" patented technology

The utility model discloses an engineering machinery manifold type hydraulic oil cooler with good heat dissipation performance, which comprises two groups of manifold bundles, each group of manifold bundles has a plurality of chambers extending along the left-right axial length direction and arranged in parallel along the front-back horizontal direction inside, two adjacent chambers are connected through a bypass hole on the shared side wall, the two ends of the chamber are sealed, a refrigerant joint is fixed on the manifold bundle, the two groups of manifold bundles are connected through a plurality of rows of flat tube groups arranged longitudinally, each row of flat tube groups is vertically fixed between two corresponding chambers of the two groups of manifold bundles along the left-right axial length direction, and two adjacent flat tubes in each row of flat tube groups are fixed and connected together through fins. The number of flat tubes and the total cross-sectional area of the flat tubes are effectively increased, the total contact area between the heat exchange medium flowing in the flat tubes and the external air is significantly increased, the heat exchange effect is enhanced, and the heat dissipation performance is excellent. The overall structure is compact and reasonable, has small space occupation, is light and portable, and is economical and practical.

The utility model relates to the technical field of constructional engineering, and discloses a gypsum board vertical lifting trolley for ceiling decoration, which comprises a support frame and four groups of universal wheels arranged at the bottom of the support frame, the top of the support frame is fixedly connected with a support stand column, the inner wall of the support stand column is slidably connected with a toothed plate stand column, and the toothed plate stand column is fixedly connected with the universal wheels. The inner wall of the toothed plate stand column is slidably connected with an adjusting stand column. The adjusting handle is rotated to drive the gear to rotate, so that the toothed plate stand column slides in the supporting stand column, the toothed plate stand column is driven to move upwards, the toothed plate stand column drives the chain wheel to ascend while ascending, the chain wheel tightens the chain, and the chain drives the chain wheel to rotate. The chain pulls the adjusting stand column to ascend, the adjusting stand column ascends to drive the bracket to ascend, and therefore the effect of vertically transporting the gypsum boards is achieved.