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77results about How to "Adjust directly" patented technology

Slope compensator for pedestal for elevated floors

InactiveUS20080222973A1Reduce prevent relative movementImprove stabilityBuilding roofsCeilingsConvex sideEngineering
A slope adjustable head for an adjustable pedestal (10) for supporting beams, panel members, typically pavers, in accurate edge aligned relation, in a level plane is disclosed. The pedestal (10) includes a base block (12) and a series of inter-engaging threaded annular elements (20, 30) which can be rotated relative to each other to adjust the height of the top of the pedestal in a screw jack fashion. A slope compensator is located at the top of the pedestal and comprises a slope compensation plate (100) and a head member (50). The head member (50) defines a concave surface having a defined radius of curvature. The slope compensation plate (100) defines a corresponding convex surface having the same radius of curvature and sits on top of the head member. The pedestal (10) is calibrated to allow adjustment for typically zero to five percent in one percent increments. The top member defines a central aperture (56) and a series of holes (72) arranged in a spiral around the central aperture. The adjustment member defines a depending central cylindrical portion (110) which locates in the central aperture (56) and two diametrically opposed depending pegs (132, 134) spaced either side of the central cylindrical portion which locate in the holes of the top member. Rotation of the slope compensation plate (100) about its centre of curvature causes the angle of the adjustment plate relative to the vertical axis to change thus allowing for compensation for the slope of the surface on which the pedestal is standing.
Owner:LEE IN OK

A trans-critical CO2 heat pump water heater pressure control method and system

The invention relates to a trans-critical CO2 heat pump water heater pressure control method and system. The method comprises the steps of collecting the outlet temperature tgc of an air cooling device, an evaporation temperature te of an evaporator, a discharge pressure P of a compressor, and a water outlet temperature Tw1 of a water tank; calculating the optimal discharge pressure Popt according to tgc and te; judging whether the difference between P and Popt is within an permissible range and maintaining the current operation state if the difference is within the permissible range and performing the step S4 if the difference is not within the permissible range; by judging the difference between Tw1 and the preset water outlet temperature Tw0 and an evaporator fan rotating speed V, adjusting the water inlet flow of the air cooling device, the evaporator fan rotating speed and the electronic expansion valve opening degree according to a preferential order until the difference between P and Popt is within the permissible range. Through the preferential adjustment order, the difference between P and Popt is within the permissible range and the performance coefficient (COP) of the system reaches the maximum, so that the system stability is improved, the service life of the electronic valve is prolonged and the system reliability is improved.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1

Normal measurement and adjustment method for drilling of free-form surface of aviation thin-wall piece

The invention discloses a normal measurement and adjustment method for drilling of the free-form surface of an aviation thin-wall piece. The method includes the following steps that a numerical control system of a machine tool reads the machine tool motion coordinates of a current drilling point location; the current position vector of a tool tip and the current direction vector of a tool shaft in a workpiece coordinate system are calculated through changes of the machine tool motion coordinates; the normal is obtained through multiplication cross of the tangent vector of the crosspoint of two space curves of the surface of the aviation thin-wall piece, namely the actual normal of the drilling point location of the workpiece is obtained; and the included angle between the current drilling direction and the actual normal of the current drilling point location of the aviation thin-wall piece is worked out, the posture of a tool or the aviation thin-wall piece needs to be adjusted when the value of the included angle is beyond the range required by the aviation manufacturing standard, and the normal drilling operation is conducted after adjustment is completed. Measurement station switchover is not needed, and the normal detection and the tool tip distance detection are completed through one-time measurement before drilling. The normal measurement and adjustment method has the advantages that the measurement accuracy is high, the application range is wide, and the measurement and adjustment efficiency is high.
Owner:SHANGHAI TOPNC NUMERICAL CONTROL TECH CO LTD

Special movable plant wall system for external building wall

The invention relates to a movable plant wall, in particular to a special movable plant wall for an external building wall, and aims to solve the problems that heat island phenomena in cities are caused and urban air pollution is increasingly serious due to small floor areas of greenbelts because of limited space of urban building groups and the greenbelts and central greenbelts are further from residential areas. A scheme I and a scheme II are included, the similarity between the schemes is that each of the schemes comprises a fixed frame, a plant planting wall assembly and a plurality of guide devices, the fixed frame is fixedly connected onto the external building wall, the plant planting wall assembly is arranged in the fixed frame and is in sliding fit with the fixed frame, the plurality of guide devices are arranged on the fixed frame, and the plant planting wall assembly is connected with an indoor wall through the plurality of guide devices; the difference between the schemes is that structures of the plant planting wall assemblies are different; a resident can irrigate plants through water guide plates in the scheme I, and the plant planting wall assembly can collect rainwater automatically and irrigation can be realized without watching in the scheme II. The movable plant wall system is applied to building groups.
Owner:HARBIN INST OF TECH
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