35results about How to "Overcoming usage defects" patented technology

The invention relates to rabeprazole sodium for injection as well as a preparation method and a detection method thereof. The rabeprazole sodium for injection is a medical preparation for injection, which is prepared from rabeprazole sodium as an active ingredient, a stabilizing agent, a pH value regulator and pharmaceutically acceptable auxiliary materials. The rabeprazole sodium for injection, disclosed by the invention, is rapid in effect taking and high in bioavailability, is used for treating gastrohelcosis, duodenal ulcer, erosive gastroesophageal reflux disease, helicobacter pylori injection, Zollinger-Ellision syndrome and the like and is more suitable for being used as a substitutive medicament when oral preparations for treating the diseases have no effect.

The invention discloses a moveable multi-purpose operation protective device. The moveable multi-purpose operation protective device comprises a frame system, an inclined strut system, a double-layer push-pull plate system, a fence system, a pulley system and stairs. The frame system comprises upright tubes and transverse horizontal tubes. The inclined strut system comprises an inclined strut rod. The head end of the inclined strut rod is rotatably connected with one upright tube by an inclined strut rotation shaft, and the tail end of the inclined strut rod is installed on the other upright tube by an inclined strut fixer. The double-layer push-pull plate system comprises a push-pull outer frame, an upper layer push-pull plate and a lower layer push-pull plate. The upper layer push-pull plate can be slid relative to the push-pull outer frame. The fence system comprises a fence frame and a fence rotation shaft support. The fence frame can be fixed on the upright tube in the unfolding process. The pulley system comprises a plurality of brake foot wheels. The stairs are installed on the frame system. The provided moveable multi-purpose operation protective device and the using method are capable of solving the using defects that the assembling and the detaching of a gate-type scaffold are time-consuming and the carrying takes a lot of work.

The invention relates to a double source heat pump air conditioning unit which comprises a compressor, a four-way reversal valve, a refrigerant-water heat exchanger, a finned heat exchanger, a refrigeration throttling valve, a one-way valve, a heating throttle valve, an electromagnetic valve and a connecting pipeline, wherein the finned heat exchanger is arranged in a shell; the shell is internally successively provided with the fan, a sprinkler, the finned heat exchanger, a heat rejection padding and a water collecting disc from top to bottom, and the lower part of the shell is provided with an air inlet arranged between the water collecting disc and the heat rejection padding; the water collecting disc is connected with the sprinkler through a water circulating pump, and the two ends of the finned heat exchanger are respectively connected with the four-way reversal valve and the refrigerant-water heat exchanger; and the finned heat exchanger comprises a first finned heat exchanger and a second finned heat exchanger, and the first finned heat exchanger is connected with the second finned heat exchanger through the electromagnetic valve and the heating throttle valve which are parallel. The double source heat pump air conditioning unit provided by the invention is capable of overcoming the use defects of a simple air source heat pump unit and a water source heat pump unit, and is applicable to multiple environmental conditions; and the double source heat pump air conditioning unit has the advantages of low heat transfer temperature, notable energy-saving effect and high unit operation efficiency.

The invention discloses a kind of silica fiber titanium gold non-ignitable soft joint which is made by silica fiber titanium gold non-ignitable material. The production technical process of this silica fiber titanium gold non-ignitable material is that: weave the base by using the glass fabric; make the glass fabric immersed the rubber; treat it by sub-salt, shoot off and curing; coat special siliceous rubber and siliceous titaniferous rubber; compose silica fiber titanium gold cloth. The silica fiber titanium gold non-ignitable soft joint of this invention makes the silica fiber titanium gold non-ignitable material instead of the aluminum foil glass thread and resolves the use flaw of the modern soft pipe thoroughly and improve the fire protection performance of it largely.

The invention discloses a cubic boron nitride grinding wheel and a manufacturing method for the cubic boron nitride grinding wheel and belongs to the technical field of grinding wheels. The cubic boron nitride grinding wheel is prepared from the following raw materials: phenolic resin powder, cubic boron nitride, chromic oxide, zinc oxide, graphite, silicon carbide and polysilicate aluminous calcium. The polysilicate aluminous calcium serving as an inorganic high polymer material is added into the raw material, is high in mechanical strength, high in surface activity with grinding material, high in interface energy effect and high in infiltration, is capable of fully covering the grinding material and improving the holding strength of the phenolic resin powder on the grinding material, and is also capable of permeating into the cracks of the grinding material with cracks to repair the grinding material and improving the performance of the grinding material, so that the grinding wheel is high in self-sharpening performance and can be used for simultaneously grinding steel alloy parts with different hardness. The cubic boron nitride grinding wheel is high in grinding efficiency, high in workpiece surface quality and stable in product quality during the grinding of the steel alloy parts with different hardness. The manufacturing method for the cubic boron nitride grinding wheel is simple in process and convenient to implement, and is suitable for industrial popularization and application.

The invention relates to the technical field of welding, in particular to an ultrasonic welding device. The ultrasonic welding device mainly comprises a driving mechanism, a head portion and an energyexchange component and is characterized in that a supporting frame is arranged in the head portion and connected with a power output end of the driving mechanism, and the energy exchange component isarranged in front of the head portion and fixedly connected with the supporting frame. By structural optimization and improvement, a welding head is capable of flexibly adapting to incoming materialdirections in a welding process, adaptability is achieved no matter materials come from a longitudinal direction or a transverse direction and from the bottom of the head portion or left and right sides of the head portion, defects in use of traditional welding equipment are well overcome, and more supply choices are provided in an ultrasonic welding process. Especially in application to integration of automatic equipment, a wide application range is realized, production efficiency is greatly improved, a design structure of the automatic equipment is simplified, and design cost of the automatic equipment is reduced.

The invention discloses a method for identifying an interactive association relationship between related service requirements of product. The method comprises the following steps: step 1, establishinga group rough cloud model of the influence degree between the product related service requirements; step 2, determining the numerical value of the influence degree between the related service requirements of the product; and step 3, sorting the related service requirements of the product based on a DEMATEL method. The method has the beneficial effects that each evaluator is allowed to freely givejudgment and evaluation in the form of interval language values; the advantages of a DEMATEL method, a cloud model theory and a rough set theory are combined; the uncertainty of personal evaluation is processed by using a cloud model theory, so that the use defects of a fuzzy set theory can be effectively overcome; the subjective value and the objective value of the influence degree are comprehensively considered, and the influence degree between related service requirements of products can be more comprehensively disclosed.

The invention discloses application of citric acid metal salts in root canal therapy and a preparation thereof. The citric acid metal salts are used for removing a smeared layer, and consist of lithium citrate, sodium citrate, potassium citrate or magnesium citrate. A smeared layer can be effectively removed through specific citric acid metal salts so that a treatment mode of using an EDTA-containing preparation in current root canal therapy can be replaced; and moreover, defects of adopting inorganic acids or organic acids are also avoided. The invention further discloses a preparation prepared from the citric acid metal salts along with a single-chain cationic antibacterial agent compatible with the citric acid metal salts. Therefore, the problem of the current root canal therapy that effect can only be achieved by alternately using the EDTA-containing preparation and sodium hypochlorite is solved, thereby having operation procedures of dentists simplified; and moreover, the functions of the two necessary preparations in the current root canal therapy are combined into a whole so that adverse reactions caused by using the EDTA and the sodium hypochlorite are avoided. Thus, a better choice is provided for clinical root canal therapy.

The invention discloses a preparation method of strong base type ion exchanging fibers. The method comprises the following steps: adding base fibers to a reaction vessel; then adding a solvent A, andfully swelling; adding cyanuric chloride and a catalyst after swelling; uniformly stirring and heating to react; cooling until room temperature is reached after reaction; filtering to obtain a product; sequentially processing the obtained product by soaking, extracting, washing with water and drying to obtain cyanuric chloride modified fibers; adding the cyanuric chloride modified fibers to a solvent B to fully swell; then sequentially adding a functional agent and an acid-binding agent after swelling; uniformly stirring and heating; cooling until room temperature is reached after reaction; filtering to obtain a product; sequentially processing the obtained product by soaking, extracting, washing with water and drying to obtain the strong base type ion exchanging fibers. According to the method for preparing the strong base type ion exchanging fibers, the use defect that strong cancerogenic substances such as chloromethyl ether are used in chloromethylation process in the prior art canbe effectively avoided.

The invention discloses a slow-release carrier, a chlorine dioxide gel composition containing the slow-release carrier and application thereof The sustained-release carrier is prepared by adding a vinyl monomer solution containing a cross-linking agent and an initiator into a dispersion medium containing a separant and adopting a reversed-phase suspension method. The slow-release carrier has a three-dimensional network structure and a cross-linking gradient, has super-strong water absorption and water retention properties, and can be used as an excellent reaction place for various slow-release preparations. Moreover, after the slow-release carrier is loaded with a chlorine dioxide precursor, controllable slow release of chlorine dioxide can be realized, and the slow-release carrier has multiple application prospects of sterilization and disinfection, air purification, deodorization, fresh keeping and the like.

The invention relates to lightweight concrete external walls and discloses a lightweight composite concrete external wall and a production method. The lightweight composite concrete external wall comprises a steel bar bracket, an embedded part fixed in the steel bar bracket, a concrete matrix which is used for filling and cladding the steel bar bracket and a coating layer which is coated on the outer side of the concrete matrix; the lightweight composite concrete external wall is prepared from the following raw materials in parts by mass: 100 parts of portland cement, 100 parts of water, 80 parts of crushed stone aggregate, 8 to 12 parts of strongly acidic action exchange resin, 30 to 40 parts of natural sand and 7 to 10 parts of polytetrafluoroethylene filler. The production method comprises the following steps: pouring lightweight composite concrete obtained by mixing the raw materials into an external wall mold provided with the steel bar bracket and the embedded part; after the lightweight composite concrete is solidified and cured, obtaining the concrete matrix; coating the concrete matrix with a coating layer, so as to obtain the lightweight composite concrete external wall.The carrying load of an external wall fixing bracket is reduced, and the compression resistance and bending strength of the lightweight composite concrete are improved; the possibility that the external wall is fractured or crushed when being impacted is reduced.

The invention relates to a double-layer rod feeding box automatic rod feeding device applied to a trenchless drilling machine. The device comprises drill rod boxes, rod box seat bodies, rod lifting mechanisms and rod changing mechanisms, wherein the drill rod boxes comprise a first drill rod box and a second drill rod box; the first drill rod box and the second drill rod box are two completely identical rectangular frames, the two frames are tightly connected, the rod box seat bodies are oppositely arranged on the two sides of the bottoms of the drill rod boxes, and the outer sides of the rodbox seat bodies are close to the end surfaces of the drill rod boxes; and the rod lifting mechanisms are connected with the rod box seat bodies through first connecting parts, the rod changing mechanisms are connected with the rod lifting mechanisms through second connecting parts, the rod changing mechanisms comprise rod changing oil cylinders, and fixing hinge seats of the rod changing oil cylinders are arranged on the rod lifting mechanisms. According to the device, the dependence on two-stage cylinders in the prior art is solved, and the defects caused by the use of the double-stage cylinders on the whole machine are avoided.

A detachable fast-care body care product, including an outer fabric layer, an inner fabric layer, a fast-care compound, a fixing belt and a charging plug, the fast-care compound includes a herbal medicine fast-volatile layer and a sleep-aiding and bactericidal compound layer, and the herbal medicine quickly volatilizes There is a breathable layer between the layer and the sleep-aiding and sterilization composite layer; the herbal medicine rapid volatilization layer is sequentially provided with a carbon fiber heating layer, a far-infrared fiber layer, a magnetic material layer and a Chinese herbal medicine filling layer, and the sleep-aiding and sterilization composite layer is from the outside to the inside. Negative ion fiber layer, anti-mite fiber layer and lavender fiber layer are provided in sequence, the inner fabric layer and the outer fabric layer are connected to form a closed cavity, the inner side of the inner fabric layer is provided with a second adhesive layer, and the inner fabric layer There are several rapid penetration holes, and the rapid health care compound is located in the airtight cavity.