7results about How to "Unique structural design" patented technology

The utility model discloses a pipeline dredging device for water conservancy project relates to pipeline dredging device technical field, including bearing frame, propulsion plate, water inlet pipe, bolt and camera, bearing frame side is provided with propulsion mechanism, the propulsion mechanism includes propulsion plate, drive wheel, first connecting rod, second connecting rod, guide rod and spring, the spring is the propulsion plate and provides power, pushes first connecting rod, and turns over and develops under the restriction of second connecting rod, and the wheel hub motor of drive wheel drive provides the advancing power, and the unique structure design, such as hexagon bearing frame, connecting rod drive wheel structure, the tooth of milling cutter disc and the thread structure etc.

The invention discloses a natural polymer-based slow-release oxygen microcapsule for repairing sediments as well as a preparation method and application of the natural polymer-based slow-release oxygen microcapsule. The slow-release oxygen microcapsule prepared by a micro-fluidic method comprises an oxygen release core containing calcium peroxide, sodium alginate and carboxymethyl chitosan are used as natural polymer shell materials, and the size of the slow-release oxygen microcapsule is 0.1-2 mm. The sodium alginate is subjected to ionic crosslinking between carboxyl and calcium ions to form an eggshell-shaped initial gel network; further, carboxymethyl chitosan is subjected to a Schiff base reaction through glutaraldehyde, and a second stable network is constructed; the two polymer chains form a composite shell layer with a stable structure and adjustable permeability through the synergistic effect of physical entanglement and double crosslinking points. The structure can effectively block water molecule permeation and oxygen diffusion, and long-acting release of oxygen is achieved.

The utility model discloses a forming die for injection molding of medical instruments, which relates to the technical field of injection molding of medical instruments and comprises an upper die holder, a lower die holder is arranged below the upper die holder, a hydraulic rod is fixedly connected to the outer wall of the top of the lower die holder, and the output end of the hydraulic rod is fixedly connected to the outer wall of the bottom of the upper die holder. An injection molding female mold is arranged above the lower mold base, and injection molding grooves distributed at equal intervals are formed in the outer wall of the top of the injection molding female mold. The cooling device can be effectively matched with the liquid inlet pipe and the liquid outlet pipe to form an efficient cooling circulation system, and the cooling cavity is unique in structural design, for example, the height is gradually reduced in the direction close to the liquid outlet pipe, the cross section is in an isosceles trapezoid shape, and the inner diameter is gradually reduced in the direction close to the liquid outlet pipe. The cooling medium can be uniformly distributed and quickly flows in the cavity, so that the cooling efficiency is greatly improved, the product cooling time is shortened, the production efficiency is remarkably improved, and the production cost is reduced.

The application discloses HKUST-1 (Cu / Mn) / chitooligosaccharide-carbon-based material and a preparation method and application thereof, and belongs to the technical field of antibiotic-polluted wastewater treatment. Chitooligosaccharide, copper salt, manganese salt and an organic ligand are respectively dissolved to obtain respective solutions, the chitooligosaccharide solution is poured into the copper salt solution and stirred, then the manganese salt solution is added thereto, the organic ligand solution is added after uniform mixing, and then the mixture is sent into a reaction kettle to perform hydrothermal reaction, and then centrifugal separation, washing, drying and calcination are sequentially performed to obtain the HKUST-1 (Cu / Mn) / chitooligosaccharide-carbon-based material. The HKUST-1 (Cu / Mn) / chitooligosaccharide-carbon-based material has comprehensive advantages of high efficiency, stability, wide applicable conditions, reusability and environmental friendliness, is suitable for the field of antibiotic wastewater treatment, and has good application prospect and industrialization potential.

The utility model discloses a kind of bulk cargo change container unloading and guiding device, install in the end of telescopic chute pipe's chute pipe section, including the mounting sleeve of the end of telescopic chute pipe chute pipe section fixedly sleeved, the mounting sleeve is connected with guide cone by support arm, the guide cone is located at the below center of the end of telescopic chute pipe chute pipe section.The utility model sets up mounting sleeve on the end of telescopic chute pipe chute pipe section, mounting sleeve is connected guide cone by support arm, guide cone is located at the below center of the end of telescopic chute pipe chute pipe section, such bulk cargo material in unloading loading process, it will be guided to flow to the periphery even distribution in container by guide cone, to ensure good loading effect.

The utility model discloses an online section cleaning device for cement grinding, relates to the technical field of cement production, and aims to solve the technical problem that some cement enters a collecting box and is mixed with metal impurities such as broken sections during section cleaning of current equipment, so that the subsequent cleaning difficulty is increased. Comprising a collecting box installed at the lower end of the middle of an air chute and an air curtain mechanism arranged in the collecting box, a discharging plate is installed in an inlet part, the air curtain mechanism comprises an air box and an air curtain pipe, an air inlet is formed in the front end of the air box, a motor is arranged in the air box, and fan blades are installed at the tail end of a main shaft of the motor. And an air pipe connected with the air curtain pipe is arranged on the air box. The cement powder collecting device has the advantages that broken segments and other metal powder impurities enter the collecting box due to gravity, cement powder can be more effectively blocked and can be guided to return to the air chute, mixing of cement and the broken segments and other metal impurities is reduced, and follow-up cleaning difficulty is lowered.

The utility model belongs to the technical field of drilling tools, and relates to a percussion bit, which comprises an outer-layer percussion head, an inner-layer percussion head, an inner-layer percussion head and an outer-layer percussion head, the inner-layer impact head is coaxially nested in the outer-layer impact head, and a second hard alloy tooth group is arranged on the front end surface of the inner-layer impact head; the slag discharging structure comprises a slag discharging notch formed in the surface of the outer-layer impact head and a slag discharging hole formed in the slag discharging notch so as to discharge broken stones generated in the impact process; each of the first hard alloy tooth group and the second hard alloy tooth group comprises a plurality of hard alloy teeth which are annularly distributed; the first hard alloy tooth set and the second hard alloy tooth set each comprise a plurality of hard alloy teeth in the axis direction of the percussion bit, and the tooth tip of the second hard alloy tooth set does not exceed the slag discharging hole. Through cooperative guiding of the inner-layer impact head and the outer-layer impact head and real-time deslagging design, coring-free accurate hole forming is achieved, the high-altitude rock core falling risk is effectively eliminated, and the construction efficiency is improved.