Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

4results about How to "Change range" patented technology

A device for correcting the slope of a foundation pit excavation

ActiveCN117488895Blow costReduce construction difficultySoil-shifting machines/dredgersExcavationsArchitectural engineeringStructural engineering
The application discloses a kind of building site foundation pit excavation slope correction device in the technical field of foundation pit excavation slope correction, including scraper, the bottom of scraper is provided with chamfer, the middle position of scraper top is equipped with driving element, eccentric vibration mechanism is installed in driving element, driving element is vertically slidably connected with driving frame, the vertical spring of driving element is fixedly connected with driving element at both ends, driving frame is horizontally slidably connected with rack, the horizontal spring of driving frame is fixedly connected with rack at both sides, angle adjusting mechanism is installed on the top of rack, sliding slot is formed in the both sides of rack, sliding slot is horizontally slidably connected with slide, slide is vertically slidably connected with vertical rod, vertical rod bottom is threadedly connected with the feeding frame slidably connected with scraper, reset spring is fixedly connected between feeding frame and scraper;In the application, scraper is scraped and corrected to slope surface, and soil is recycled, and when pit and depression are encountered, it can be filled and compacted, to reduce the difficulty of slope construction.
A device for correcting the slope of a foundation pit excavation
View all
Owner:HEFEI CEMENT RESEARCH AND DESIGN INSTITUTE CO LTD

multimeter, multimeter (mm)

ActiveCN224609179UAvoid repeated unplugging and pluggingchange detectability
The utility model belongs to the technical field of measuring tool, disclose a kind of multimeter, including multimeter body, shell, input terminal and control part. Base is provided in shell, a plurality of second pole pieces are provided on base, and a plurality of second pole pieces are one-to-one corresponding with a plurality of input terminals of multimeter body. Input terminal is used to be connected with meter pen. Control part is movably arranged on shell, to selectively electrically connect one of a plurality of second pole pieces with input terminal. The utility model is provided with base on shell, input terminal and a plurality of second pole pieces are provided on base, and a plurality of second pole pieces correspond to the different input terminals of multimeter. Control part is movably arranged on shell and selectively connected with one of a plurality of second pole pieces, so that different second pole pieces are connected by the mode of moving or rotating control part, the change of detection electric parameter or range is realized, repeated plugging meter pen is avoided, and test efficiency is improved and use experience is improved.
multimeter, multimeter (mm)
View all
Owner:NINGBO DELI TOOLS CO LTD

Semi-automatic impurity removing machine

ActiveCN224181296UEfficient reciprocating motionreciprocating motion changesSievingScreeningReduction driveReciprocating motion
The utility model relates to a semi-automatic impurity removing machine. A driving system formed by combining the motor and the speed reducer is adopted, power can be stably and continuously provided, it is ensured that the screen mechanism conducts efficient reciprocating motion, and therefore the material screening speed is increased, and the overall productivity is improved. The design of the fisheye connector allows the reciprocating motion amplitude and frequency of the screen mechanism to be changed by adjusting the distance between the connecting screw rod and the nut, so that the screening requirements of different materials are met, the flexibility and applicability of the equipment are improved, noise and friction during reciprocating motion of the screen mechanism are effectively reduced through the arrangement of the rubber rolling wheels, and the service life of the equipment is prolonged. And noise pollution and mechanical vibration damage to operators are reduced.
Semi-automatic impurity removing machine
View all
Owner:SUZHOU WUJIANG GRAIN RESERVE MANAGEMENT CO LTD

Cement strength breaking testing machine

ActiveCN224303469USolve the accuracy problemsolve difficultyMaterial strength using tensile/compressive forcesMaterial strength using steady bending forcesElectric machineryScrew thread
The utility model discloses a cement strength anti -break testing machine relates to cement performance test field, including equipment main part, equipment main part top one side is provided with the pressure -bending detection mechanism, is provided with the pressurizing mechanism in equipment main part, and the pressurizing mechanism includes elevating support, and the elevating support is rotationally connected with worm wheel, and the elevating support front side is fixed with second motor, and second motor output is fixed with worm, and worm is engaged with worm wheel, and the middle screw thread of worm wheel is connected with elevating stud, and the bottom hinged of equipment main part has pressurizing lever, and two connecting sliding blocks are slidably connected on pressurizing lever, and connecting sliding block is hinged with elevating stud, and another connecting sliding block is connected with pressure -bending detection mechanism. Advantageous effects lie in: second motor drives elevating stud to go up and down through worm and worm wheel, and elevating stud drives force transmission vertical pole to go up through pressurizing lever, and can pressurize cement test block like this, utilizes the big transmission ratio and self -locking characteristic of worm and worm wheel, can fine control pressure and the stability of pressure.
Cement strength breaking testing machine
View all
Owner:HUNAN HUDIAN ELECTRIC POWER TECHNOLOGY CO LTD