42results about How to "Adjust the size" patented technology

The invention provides a water-bath fixing frame with an adjustable size. The water-bath fixing frame comprises a plurality of circular rings with adjustable radii and a plurality of vertical rods; the vertical rods are arranged on the circumference of the circular rings to form a cylindrical cup rack, and the tail ends of the vertical rods bend towards the outer side of the cylindrical cup rack to form supporting feet; two ends of each circular ring are respectively provided with a sawtooth part, the tail end of each sawtooth part is provided with a spring cord fastener, and the sawtooth parts at the two ends of circular ring are movably connected through the spring cord fasteners; a plurality of telescopic rods are arranged at the bottom of the cup rack, each telescopic rod is composed of two cross bars, one end of each cross bar is connected with the circular ring located at the bottom of the cup rack, the other end of each cross bar is provided with a buckle, and the two cross bars mutually pass through the buckles and are movably connected through the buckles; and counterweight blocks are arranged below the supporting feet. The water-bath fixing frame is used for water-bath heating of a drug or reagent, can fix a beaker or test tube, prevents shaking or inclination caused by boiling of water, allows the beaker or test tube to be suspended, avoids uneven heating, can adjust the size of the cup rack and is applicable to single water-bath heating of beakers or test tubes of different sizes.

The invention provides a double-cam self-locking sole massager. The double-cam self-locking sole massager comprises a top plate, a bottom plate, a driving mechanism, a transmission mechanism, a control assembly and a supporting mechanism arranged between the top plate and the bottom plate, two sets of cam structures are arranged between the top plate and the bottom plate, each set of cam structures comprises a cam shaft and seven cams, the two sets of cam structures have same structures and are arranged symmetrically, the seven cams of each set of cam structures are arranged on the corresponding cam shaft according to a certain angle, every two cams, in a same horizontal plane, of the two sets of cam structures form a cam set, the upper portion of each cam set is provided with a cam push rod, the two ends of each cam push rod are connected with the two cams of the corresponding cam set respectively, the upper portion of each cam push rod is connected with a transverse rod, and the topsof the transverse rods are provided with massage mechanisms. The double-cam self-locking sole massager has the advantages that different effects can be achieved by adjusting the time of acupoint massage, not only can the fatigue be relaxed and relieved, but also the healthcare effect can be achieved, and the double-cam self-locking sole massager has great benefits to the human body.

A drainage device for flood control and drainage, comprising a bottom plate, four evenly distributed first support plates are fixedly connected to the top of the bottom plate, and an operation platform is fixedly connected to the upper surface of the four first support plates, and the inner wall of the middle part of the operation platform is set There is a rotatable partial threaded rod, rollers are provided on both sides of the left and right ends of the base plate, and reinforcement plates are respectively provided in the middle of the left and right ends of the base plate, when the partial threaded rod rotates, the rollers can move upwards synchronously , The structure that the reinforcing plate moves outward synchronously; a water pump is installed on the front side of the upper surface of the operation table, and the rear end pipe of the water pump is connected with a nozzle that can swing back and forth left and right, and a water pump that can move back and forth is installed on the rear side of the upper end of the operation table. Large cylindrical pad, when the large cylindrical pad moves back and forth, it can form a structure to adjust the reciprocating left and right swing range of the nozzle; through the rollers that can move upwards and the reinforcement plate that moves outwards, the bottom plate and the reinforcement plate can be in contact with the ground to keep the equipment Stable and prevent side fall.

A preparation method of an iron phosphide-supported graphene foam composite material belongs to the field of functional nanomaterials. The method is characterized in that Fe(NO3)3.9H2O is used to controllably catalyze the structural evolution and carbonization of polyvinylpyrrolidone in the sintering process, and a subsequent CVD phosphating process is combined to directly form a composite structure on the iron phosphide-supported graphene foam in order to obtain the iron phosphide-supported graphene foam composite material. Iron phosphide nanoparticles have a nearly spherical shape, have an adjustable size in a range of 30-500 nm, and can be closely and reliably combined with graphene foam. The iron phosphide nanoparticles are evenly distributed, and are closely bound to the graphene foammatrix. The composite material has the advantages of uniform composition and structure, simple process and high repeatability, and the method has the advantages of novelty and low cost, and is very suitable for large-scale promotion.