3results about How to "Low extension" patented technology

This application relates to the field of heat pump technology, and in particular to a variable frequency photovoltaic direct-drive heat pump water heater. Key features of the technical solution include: a device body with a water outlet at the bottom for condensate to flow downwards; a bracket fixedly mounted on the bottom of the device body for supporting it; a positioning frame mounted on the bracket, the positioning frame having a positioning groove; a water receiving tray movably inserted into the positioning groove and located below the water outlet; and a limiting component movably mounted on the positioning frame. When the water receiving tray is installed in the positioning groove, the limiting component prevents the water receiving tray from detaching from the positioning groove; when the water receiving tray is removed from the positioning groove, the limiting component releases the water receiving tray. This application reduces the difficulty of maintaining and replacing the water receiving tray.

This utility model discloses a road surface widening and reinforcement structure, relating to the field of highway construction technology. It includes a vertical stepped structure, a longitudinal cast-in-place layer, a longitudinal cast-in-place top layer, and crack-resistant components. The vertical stepped structure is formed by cutting the old road surface base layer with a longitudinal cutting machine to create a stepped overlapping interface, with the cutting depth consistent with the thickness of the corresponding structural layer. The longitudinal cast-in-place layer is placed at the joint between the old and new road surfaces in the cement-stabilized crushed stone lower base layer, and the longitudinal cast-in-place top layer is placed at the joint of the upper base layer with its top surface flush. The crack-resistant components include ribbed steel bars transversely embedded in the middle of the upper base layer, crack-resistant wire mesh laid at the bottom of the lower base layer, and crack-resistant tape covering the joint of the upper base layer. This utility model achieves a seamless connection between the old and new road surfaces, forming an integrated load-bearing system and significantly improving the road surface's load transfer capacity and deformation resistance.

The utility model discloses a flexible control cable, which relates to the technical field of cables, aims to solve the problem of poor bending resistance of the cable in the prior art, and adopts the technical scheme that the flexible control cable comprises a stranded conductor, a reinforcing piece and a filling strip, an insulating layer is extruded outside the stranded conductor to form an insulating wire core, and the reinforcing piece is extruded outside the insulating wire core to form an insulating layer. A braided reinforcing layer is braided outside the insulated wire cores; the high-strength aramid yarn is added in the stranded conductor, and the aramid has the characteristics of high tensile strength, high tensile force, low extension, high modulus, high breaking strength, high temperature resistance, flame retardance and the like; a plurality of groups of insulating wire cores which are externally braided with the braided reinforcing layers are twisted to form a cable core, gaps of the cable core are filled with filling strips, and the center of the cable core is filled with a reinforcing piece; an inner sheath is extruded outside the cable core, a metal reinforcing layer is woven outside the inner sheath, and an outer sheath is extruded outside the metal reinforcing layer.