69results about How to "No risk of breakage" patented technology

The invention relates to a control valve (1) for a device for the variable setting of the control times of gas exchange valves of an internal combustion engine having a valve housing (2), which is implemented as hollow, and which has at least one inflow connection (P), at least one exhaust connection (T), and at least two working connections (A, B), and a hydraulic medium conduction insert (10), which is disposed in the valve housing (2) and implemented as hollow, having hydraulic medium conduction channels (11, 12, 13, 14), which are disposed in the wall of the hydraulic medium conduction insert (10) and communicate with the working connections (A, B), and a control piston (3), which is disposed in the hydraulic medium conduction insert (10), wherein said hydraulic medium conduction insert (10) has a guide sleeve (15), in which said control piston (3) is guided, said guide sleeve (15) has a plastic encapsulation (16), in which at least two of said hydraulic medium conduction channels (11, 12, 13, 14) are disposed, and a filter fabric (17) is provided between said plastic encapsulation (16) and said guide sleeve (15).

The invention provides a system composed of a hydrocarbon transfer buoy (2, 82) and a vessel (3, 95), the buoy having a length (H1,H2,H3) of at least 50 m and a length-to-width ratio of at least 10: 1, and comprising a submerged buoyancy member (5,6,7,85) having a length of at least 30 m and being situated at a depth of at least 10 m below water level, a support frame (10,96) being connected to the top of the buoyancy member and projecting above water level, the support frame carrying a support deck (11,91) and a mooring buoy connector (36, 99,102) for attaching to a mooring arm connector (21,100) of the vessel, which mooring arm connector is situated on an arm (4,92) projecting outboard from the vessel's hull, the buoy being anchored to the sea bed via anchor lines (23,24,83,84) which extend at an angle to a vertical direction, at least one hydrocarbon riser (12,13,93,94) being attached to the buoy, the support frame (10, 96) is an open support frame, the buoyancy member being connected to the sea bed via at least one substantially vertical taut tendon (31,32,33).

The invention discloses a microneedle capable of extracting skin tissue fluid and a preparation method thereof. The microneedle comprises porous network frameworks and hydrophilic polymer layers modified at the internal and external surfaces of the framework, wherein the porous network frameworks penetrate through each other. The preparation method specifically comprises the following steps: preparing a mixed solution of a polymer and a pore-foaming agent, filling the mixed solution into a microneedle mold, removing the pore-foaming agent to obtain the porous network framework with interpenetration, and finally modifying hydrophilic polymer layers on the inner surface and the outer surface of the porous network framework. The microneedle capable of extracting the skin tissue fluid is obtained by improving the thickness of the hydrophilic polymer layer adopted by the microneedle, the porosity and the aperture of the microneedle and the overall process flow design of the corresponding preparation method. The microneedle provided by the invention is good in biocompatibility and high in skin tissue fluid extraction speed, does not need an additional negative pressure device, does not cause obvious pain and skin infection, and does not need to be operated by professionals.

The invention relates to a hot forging pressing process water meter copper shell and a manufacturing method thereof. The manufacturing method comprises the following steps: S1, feeding a copper bar which has the diameter Pi of 60-75 MM, and weighs 1,600-1,900 g; S2, rapidly heating the copper bar obtained in the S1 through combustion heater equipment to be 700-800 DEG C; S3, putting the copper bar obtained in the S2 in stamping equipment to be subjected to hot forging stamping forming with a special water meter copper shell mold; S4, cutting edges of the copper shell blank obtained in the S3; S5, inspecting the edge-cut copper shell obtained in the S4 to obtain the needed hot forging pressing process water meter copper shell. The quantity of waste gas generated in the hot forging pressing process water meter copper shell blank forming process is smaller than that of waste gas generated in casting process, so that the environment protection is efficiently improved; the sealing performance of the shell wall in forging pressing of the hot forging pressing process water meter copper shell blank is improved, no small air holes are formed in the shell wall, a process of secondary infiltration for controlling the small air holes is eliminated, and the scrappage caused by the small air holes is reduced.

The invention discloses a vena cava filter. The vena cava filter comprises a plurality of support rods, wherein one end of each of the support rods is gathered, and the other end of each of the support rods is radially dispersed under a releasing state; at least one part of the support rods are twisting support rods which are respectively formed by twisting a plurality of metal wires; each twisting support rod is formed by twisting two or more metal wires; the diameters of the metal wires on the same twisting support rod are the same or are different; at least one metal wire of each twisting support rod is bent at a part close to the radial end to form an anchor hook. The vena cava filter has the advantages that the strength is higher, the compliance is better, the releasing and recycling process is smooth, and the falling and dislocation risks are avoided.

The invention provides a flexible micro-nano electrode array implantable chip and a production method thereof. The micro / nano electrode array implantable chip sequentially comprises a base layer, an electroconductive layer and an insulating layer from bottom to top. The base layer made of a flexible material is of a T-shaped structure with a pointed front end. The electroconductive layer formed onthe base layer is used for detecting dual-mode neural signals in a plurality of nucleus regions of the brain. The electroconductive layer comprises a dual-mode detection electrode array formed at thefront end of the base layer, and the dual-mode detection electrode array is used for detecting the dual-mode neural signals in the nucleus regions of the brain. The dual-mode detection electrode array comprises a plurality of electrophysiological detection sites and a plurality of electrochemically sensitive detection sites, which are arranged along the longitudinal direction of the front end anddistributed in a plurality of to-be-detected nucleus regions. The insulating layer is made of a flexible material. The flexible micro-nano electrode array implantable chip and the production method thereof have the advantages that an effective detection measure and an effective detection tool are provided for long-term detection of the neural signals, and the chip is of great significance in terms of reduction of inflammations in the brain, detection of multiple brain regions, lesion discovery based on functional positioning by two types of the neural signals, and the like.

The invention relates to an electronic key, particularly for a closing apparatus (105) for a motor vehicle (100), having a housing (20) made of plastic and an electronics unit (40) for data communication with the closing apparatus (105), a holder (30) formed on the housing (20), and a cover (50) which is mounted detachably on the housing (20) and seals the holder (30). The invention provides for a container element (60) to be able to be inserted into the holder (30), where the container element (60) holds the electronics unit (40) and an energy store (41), the container element (60) has a collar element (61) and the underside of the cover (50) rests against the collar element (61).

The invention provides a Metoprolol Tartaric Acid and Felodipine slow-release double-layer tablet and its preparation method. The slow-release double-layer tablet comprises a Metoprolol Tartaric Acid slow-release layer containing, by weight, 50 parts of Metoprolol Tartaric Acid, 100-150 parts of an ethyl cellulose powder, 24-30 parts of ethyl cellulose in the form of an ethyl cellulose aqueous suspension and 130-230 parts of hydroxypropyl methyl cellulose; and a Felodipine slow-release layer containing 5 parts of Felodipine and 60 parts of hydroxypropyl methyl cellulose. By adjusting the ingredients and their ratio in the Metoprolol Tartaric Acid slow-release layer and the Felodipine slow-release layer, the release speeds of medicament layers can cooperate with each other and the slow-release effect is more reliable, thus reaching a good curative effect; in addition, it is ensured that the medicament layers can be smoothly compacted to form a double-layer tablet, and the hidden trouble of damaged coating particles can be avoided. The preparation method provided by the invention mainly employs the double-layer tablet compacting technology with simple equipment, can save cost and is suitable for industrial production.

The invention provides a bilayer tablet containing niacin and simvastatin, and a preparation method thereof, wherein the bilayer tablet containing niacin and simvastatin comprises the following compositions in parts by weight: in niacin sustained release layer, 475-950 parts of niacin, 12-24 parts of ethyl cellulose and 100 parts of hydroxypropyl methyl cellulose; and in a simvastatin layer, 120 parts of simvastatin, and 25-50 parts of niacin. Due to addition of the niacin in the simvastatin, the constitution and elastic deformation of the two tablet layers can be closer, and the phenomena ofseparation and split can not be generated during preparation process. Through adjustment on types and dose of each composition of each layer, the releasing speed of the medicine in each layer can be matched so as to achieve better curative effect; in addition, respective preparation of the two layers can ensure the releasing effect of the niacin to be more reliable, and no hidden damage hazard ofcoating capsules does not exist. The main process step adopted by the preparation method is a double-layer table pressing process, the related equipment is simpler and the pharmacy cost can be saved.

The present invention relates to a device for filling a can with a sliver produced in a spinning preparation installation, e.g. a drawing frame, carding machine or combing machine. The device is suitable to receive an empty and a full can at the same time, and comprises a depositing head (13) with a rotary plate (14). According to the invention, at least the rotary plate (14) is movably mounted, the device having at least one guide device (40) that can be adapted to the course of the sliver while the rotary plate (14) is moved.

The invention discloses a high performance micro-mixer used in an ultra-high performance liquid chromatography analyzer, and belongs to the field of high grade biochemistry analysis and fluid micro mixing in micro-complete analysis systems. The high performance micro-mixer comprises two inlet channels, a mixing chamber, twelve blocking plates which are distributed in an up-down staggered manner, and an outlet channel; the blocking plates are capable of enhancing the convection effect in solvent flowing, so that it is convenient for forming of a vortex zone; and in addition, the staggered blocking plates are capable of realizing flow of mixed solvent in the mixing chamber in a square wave patter path, and vortex is easily formed at corners, the existing of vortex is capable of breaking laminar flow state of solvent in flowing, and delaying diffusion path of mixed solvent in the mixing chamber, the mixing performance of the high performance micro-mixer is improved obviously, and the precision of the ultra-high performance liquid chromatography analyzer is increased further.

The invention provides a central vein catheter, and relates to the technical field of medical apparatus and instruments. The central vein catheter comprises a main catheter body, at least one branch pipe and at least one extension pipe; the main catheter body is internally provided with at least one passage extending in the axial direction of the passage; the outlet end of any one branch pipe is communicated with the corresponding passage, and the inlet end of any one branch pipe is communicated with the corresponding extension pipe; a sub connector is arranged at the inlet end of each branchpipe, and an outer connector cooperating with the corresponding sub connector is arranged at the inlet end of each extension pipe; the sub connectors and the outer connectors are adjusted, and the branch pipes and the extension pipes are conducted or blocked or separated. According to the central vein catheter, conduction and blocking of the central vein catheter are achieved by means of the sub connectors and the outer connectors, a traditional stop clamp is replaced, breakage risk of the central vein catheter can be eradicated, the probability of medical negligence is lowered, and the service life of the medical apparatus and instruments is prolonged.

The invention provides a robot grasping system. Four worm wheels are driven by a worm, the worm wheels are connected with grippers, the four worm wheels are driven to rotate together in the same direction when the worm rotates, the grippers fixed to the worm wheels are driven by the worm wheels to be opened and closed, and then the article grasping purpose is achieved. Meanwhile, by means of the self-locking function of the worm wheels and the worm, the article grasping stability of the grippers can be improved.

The invention relates to the technical field of resistor manufacturing, and particularly relates to a complete transposition multi-strand circular stranded wire. The complete transposition multi-strand circular stranded wire comprises an encapsulating insulating layer, a forward stranding wire, a backward stranding wire, a single-strand stranded wire insulating layer and a forward and backward stranding wire insulating layer, wherein the encapsulating insulating layer wraps outside the forward stranding wire and the backward stranding wire; the forward stranding wire and the backward strandingwire are respectively composed of a six-strand stranded wire; each strand is stranded by no less than three single circular wires; the single-strand stranded wire insulating layer adopts two polyester films with a thickness of 25[mu]m, and the two polyester films are respectively wound on the forward stranding wire and the backward stranding wire in a forward-backward crosswise manner; the forward and backward stranded wire insulating layer separates the forward stranding wire and the backward stranding wire and is formed by winding a layer of DMD with a thickness of 0.4mm in an accompanyingmanner. Aluminum wires / copper wires are adopted to replace nickel-chromium, the temperature rise under the continuous current is not less than 20K, the temperature control is not more than 60 DEG C, and the short-term temperature is not higher than 180 DEG C under impact short-circuit current, thereby not causing secondary failure, and being safe and reliable.

The invention relates to a flip vacuum wafer film pasting device, which comprises an upper vacuum cavity (1) and a lower vacuum cavity (2), the upper vacuum cavity (1) and the lower vacuum cavity (2) are respectively and independently connected with vacuum suction equipment, an adsorption structure for adsorbing a circuit board surface of a wafer (3) is arranged in the upper vacuum cavity (1), and a thin film for film pasting is tensioned through a tensioning structure. A supporting structure is arranged in the lower vacuum cavity (2), the tensioning structure is fixed to the supporting structure, a driving structure used for driving the supporting structure to move up and down is arranged below a supporting table in the lower vacuum cavity (2), and after the tensioning structure is installed in place, the lower surface of a film on the tensioning structure is communicated with a cavity body of the lower vacuum cavity (2). And meanwhile, the upper vacuum cavity (1) and the lower vacuum cavity (2) are isolated by the supporting structure and the tensioning structure. Compared with the prior art, flip vacuum wafer film pasting device has the advantages that the risk that the wafer is turned over by 180 degrees for the second time is avoided, and the film is free of bubbles.

The invention relates to a cosmetology microneedle. The cosmetology microneedle comprises a handle and a needling portion, wherein the needling portion is connected with one end of the handle in a rotary mode and is composed of a needle head and an adapter, microneedle bodies are arranged on the top surface of the needle head, the bottom surface of the needle head is glued to the adapter, and the adapter is connected with the handle in a rotary mode; the needle head is composed of a base, a boss and the microneedle bodies, the boss is in the shape of a frustum, the lower bottom surface of the boss is glued to the base, and a microneedle array is arranged on the upper bottom surface of the boss. Due to the fact that the needle head is in the shape of a pyramid, the needle point can be sharp enough, the strength of the microneedle bodies is extremely high, and breakage of the microneedle is avoided.

The invention discloses a hopper device for a spring-free microcomputer combined scale, which comprises a hopper body, a hopper door, a motor, a swing rod, a movable support and a mounting rack, wherein the swing rod is connected to an output shaft of the motor, the motor is mounted on the mounting rack, the movable support is hinged with the mounting rack, the hopper body is mounted on the mounting rack, and the hopper door is hinged with the hopper body; a hopper door driving shaft and a pull rod are further included, the hopper door is connected with the movable support through the pull rod, the hopper door driving shaft is installed on the movable support, and the swing rod is movably connected with the hopper door driving shaft. A spring does not need to be used, the motor is used for driving the swing rod to rotate, rotation of the swing rod is converted into movement of the hopper door driving shaft through the movable mechanism, opening and closing of the hopper door are controlled through the pull rod, and high noise caused by springback of the spring, and falling precision affected by generated vibration are reduced; and the conditions of spring breakage and falling are avoided.

The invention discloses a preparation method of a zirconia all-ceramic tooth. The preparation method is characterized by comprising the following steps: acquiring patient data, establishing a digital model, determining the form of a dental crown prosthesis, typesetting, exporting STL format data, completing typesetting and customizing a support retainer through a 3D printer, carrying out spray forming on a zirconia dental crown, carrying out post-treatment, pre-dyeing, drying sintering, polishing, adjusting and glazing. The dental crown which is directly used for repairing the human body can be directly produced; a 3D printing spraying technology is adopted, and the material utilization rate is increased; the dental crown is small in thickness, high in strength and suitable for adults; due to the design of the soluble support material, the soluble support material can be quickly dissolved, is easy to remove and free of residues, can break through the limitation of post-treatment support removal, and realizes the design of any shape; and cutting and polishing are not needed, and the labor cost and the breaking risk in the machining process are reduced.

The invention relates to a joint-free annular conveying belt wound by an anti-tear fiber rope. The processing process of the joint-free annular conveying belt wound by the anti-tear fiber rope is characterized by comprising the following steps of preparing glue pulp, selecting a rope with proper strength, winding the rope impregnated with the pulp around a numerical control double-drum rope winding machine, upper buffer glue and lower buffer glue and covering glue discharging films, manually wing a circle of the rope for measuring the circumference, attaching the upper buffer glue and an anti-tear cord, attaching the upper covering glue, reversely rotating the rope, the upper buffer glue and the upper covering glue which are attached together, attaching the lower buffer glue and the lowercovering glue, finally cutting off the redundant buffer glue and the covering glue, finishing into a semi-finished product belt blank and vulcanization processing of the semi-finished product belt blank. Compared with the prior art, the annular conveying belt has the advantages that the annular conveying belt is free of joints, the longitudinal force of the conveying belt is strong, the material consumption is low, the conveying of the annular conveying belt is stable.

The invention discloses a loader closed type static hydraulic driving system and belongs to the technical field of engineering machinery. The system comprises a hydraulic pump and a closed pipeline, wherein the closed pipeline is formed by communicating with a hydraulic motor. An anti-rupture valve bank is arranged between the hydraulic pump and the hydraulic motor. The anti-rupture valve bank comprises two-way cartridge valves, wherein the two-way cartridge valves obtain the high pressure inside the system through a shuttle valve and are controlled by hydraulic valves to be switched on or switched off. By means of the loader closed type static hydraulic driving system, the problem that when an existing loader closed type static hydraulic driving system is used, once a pipeline is ruptured, vehicle wheels which stall and rotate cannot be dropped within the safe value range in proper time through travelling brake operated manually can be solved.

The invention discloses a combined stator with an insulating skeleton. The combined stator comprises an expansion sleeve, an iron core unit, the insulating skeleton, a coil wound on the insulating skeleton, and an iron core connecting part which is connected with the iron core unit. The combined stator is characterized in that the iron core unit is shaped like T, and two sides of the T-shaped ironcore unit are provided with mortise grooves; both sides of the iron core connecting part are bulged to be provided with tenons; the exterior of the insulating skeleton is provided with an annular groove; the coil is wound in the annular groove of the insulating skeleton, and the mortise grooves below the T-shaped iron core unit and the tenons of the iron core connecting part are connected; a plurality of T-shaped iron core units and the iron core connecting part form an annular stator through the cooperation of the mortise grooves and the tenons; the inner hole of the annular stator is in interference connection with the expansion sleeve. Compared to the prior art, the stator has an integral insulating skeleton, adapts to standard winding machine operation, is suitable for mass production, and has a good insulating effect. There is no risk that an enameled wire will cause a damage during winding.

A retardant plastic insulating conduction band used in outdoor lead-in wire of electric control cabins and transformers includes ribbon copper with at least two closely stacked sheet coppers 0.5-1.0 mm thick and 6mm-50mm wide. The said ribbon copper is coated with retardant plastic insulation layer. Advantages: soft bended and easy coated which does not crack the insulation protection medium wrapping conductors and reducer flame tempeture, steps heat and oxidation transfer channel once bumps into fire, the length of it can be processed freely, copper sheets are bound tightly without slot.

The invention discloses an electric clothes airing machine with a folding mechanism and a drying module. The electric clothes airing machine is used for a clothes airing machine and comprises a main machine, two telescopic mechanisms, a clothes airing rod, the drying module, the folding mechanism and an electric wire, wherein the two telescopic mechanisms are installed below the main machine; eachtelescopic mechanism is provided with a folding rod and a cross beam connected with one end of the folding rod; the other ends of the two folding rods are connected with the main machine; the clothesairing rod is connected with the two ends of the cross beam and is used for hanging clothes; the drying module is located below the main machine; one end of the folding mechanism is hinged to the drying module, and the other end of the folding mechanism is hinged to the main machine, so that the drying module ascends and descends in the vertical direction; and the electric wire is contained in the folding mechanism and used for electrically connecting the drying module to the main machine.

At least one section of the screw (11) has a wear-protection layer (13) and at least one other section of the screw preferably has an anti-friction layer (18). In a solid rod (11'), a bed (12) for the wear-protection layer (13) is first formed, and in this the wear-protection layer (13) is then applied, and finally the interstices (14) between the screw flights (15) are formed. According to the invention, the wear-protection layer (13), for example composed of tungsten carbide, is applied by build-up welding, and the interstices (14) are formed with lateral separation (16, 16') with respect to the wear-protection layer (13). For production of the anti-friction layer, the dimension of that / those section(s) of the screw (11) where the anti-friction layer, e.g. composed of molybdenum, is to be applied is reduced below specification, while providing lateral separation (19) with respect to the wear-protection layer. The anti-friction layer is then applied in the under-dimensioned region (17). Finally, the screw (11) is brought to the specified dimension.

The invention discloses a method for increasing mango high-branch grafting survival rate. The method includes the steps that a regulator I is sprayed to a scion tree body of a scion to be collected before collecting the scion; an annular ditch is dug around a rootstock tree body to be subjected to high-branch grafting before grafting, and a regulator II is applied in a burying mode; tree crowns are trimmed before grafting; during high branch grafting, after stock and scion incisions are cut, beta-1,3-1, and 4 glucanase solutions are dipped and smeared on the stock incisions and the scion incisions respectively, and then the scion incisions are connected with the stock incisions for grafting; and a regulator III is sprayed to the whole plant after grafting is completed. By the adoption of the method for increasing the mango high-branch grafting survival rate, the survival rate of mango high branch grafting is increased from 30-40% to 65-85% under the condition that the affinity degree between a stock variety and a scion variety is low, the basic healing speed of a grafting opening is increased by 10-15 days or above compared with a conventional method, new scion shoots do not need to be unbound after being drawn out, the surface of the grafting opening is smoother, and the probability of suffering from microbial diseases in a later period is reduced.

The invention discloses a microneedle capable of extracting skin tissue fluid and a preparation method thereof. The microneedle comprises a porous network framework interpenetrated and a hydrophilic polymer layer modified on the inner and outer surfaces of the framework. The preparation method is specifically to prepare a mixed solution of polymer and porogen first, then fill them into the microneedle mold, and then remove the porogen therein to obtain a porous network skeleton with interpenetration, and finally in the porous network skeleton The inner and outer surfaces are modified with a hydrophilic polymer layer. The present invention obtains the microneedle capable of extracting skin tissue fluid by improving the thickness of the hydrophilic polymer layer used in the microneedle, the porosity and aperture of the microneedle, and the overall process design of the corresponding preparation method. The microneedles provided by the invention have good biocompatibility, fast extraction of skin tissue fluid, no external negative pressure device, no obvious pain and skin infection, and no need for professional operation.