274results about How to "With protection" patented technology

The invention relates to a manipulator, in particular to an elastic manipulator with a part protection structure. The elastic manipulator comprises a base, an air cylinder, a driving block, a first claw, a second claw and connecting rods, the air cylinder is arranged on the base, the first claw and the second claw are located on two sides of the driving block, middles of the first claw and the second claw are both hinged to the base, one end, close to the air cylinder, of each of the first claw and the second claw is hinged to the driving block through the corresponding connecting rod, the driving block is connected with a piston rod of the air cylinder, spring plates are arranged at opposite positions of clamping sides of the first claw and the second claw, two ends of each spring plate are fixed, and a gap is formed between the middle clamping portion of each spring plate and the inner side of the corresponding claw. When the elastic manipulator is used for grabbing parts, the spring plates with elasticity are in contact with the parts, and the elastic faces can protect the parts.

The invention discloses a facial wound restoration dressing including the following components by the weight percentage: 0.05%-1% of chitosan, 0.1-0.3% of macromolecular sodium hyaluronate, 0.1-0.3% of low-molecular sodium hyaluronate, 0.1-0.3% of oligomeric sodium hyaluronate, 1-5% of a sodium hyaluronate elastomer, 2-3% of a purslane extract liquid, 2-3% of a notoginseng extract liquid, 2-5% of a chamomile extract liquid, 2-5% of an aloe extract liquid, 2-5% of an argy worwood extract liquid, 2-5% of a hamamelis mollis extract liquid, 1-5% of 1,2-pentanediol, 0.5-2.0% of SC-10 with the registered trademark of sensival, and the balance sterile water. The preparation method of the dressing comprises that the components are added in turn and mixed evenly and the pH value is adjusted to 5.5-7.5. The plaster containing the dressing is obtained by combining the dressing with a non-woven facial mask. The plaster is capable of inhibiting bacteria, diminishing inflammation, stopping bleeding, and promoting tissue healing and restoration.

The invention relates to an air flotation conveying device which comprises at least two conveying shafts and at least one air flotation conveying shaft and is used for conveying a bent and approximately sheet object to be detected to move. The object to be detected is provided with a contact surface and an operating surface; the conveying shafts are contacted with a contact surface of the object to be detected while the air flotation conveying shaft is adjacent to and not contacted with the operating surface of the object to be detected; and the object to be detected is limited by the air flotation conveying shafts to form a bending section between the two conveying shafts. Each air flotation conveying shaft is provided with an air storage space, an operating part, a non-operating part and an air intake part, wherein the air storage space is used for storing high-pressure gas; the operating part is adjacent and faces toward the operating surface without contacting and is provided with a plurality of exhaust holes; and the air intake part is used for conveying the high-pressure gas to enter the air storage space and sending the high-pressure gas out by the plurality of exhaust holes of the operating part to form an air cushion layer, therefore, a predetermined space is generated between the operating surface of the object to be detected and the operating part of the air flotation conveying shafts. The invention has the protection of the specified surface and is capable of carrying out non-contact tension adjustment.

The invention discloses a lithium battery pack battery management system for a solar panel. The lithium battery pack battery management system comprises a lithium battery pack, a master control module, a power supply management module and an external expansion communication module and is characterized in that the power supply management module is in communication connection with the master controlmodule, the external expansion communication module is in communication connection with the master control module, the signal input end of the master control module is electrically connected with thesignal output ends of a temperature detecting module, a voltage detecting module and a current detecting module, and the signal output end of the master control module is electrically connected withthe signal input ends of a multichannel battery equalization control module, a charging and discharging detection enabling control module and an indicator lamp module. The lithium battery pack batterymanagement system has the advantages that the system is extremely low in stand-by power consumption, and the problem that the lithium batteries, which are fully charged when leaving a factory, of a lithium battery pack is over-discharged and damaged after self-discharge, and the lithium batteries cannot be charged through the solar panel is solved.

The invention discloses a flame retardant low foaming polypropylene material and a preparation method thereof. The material comprises, by mass, 10 to 90% of polypropylene, 5 to 30% of a thermally decomposing inorganic substance, 3 to 40% of a halogen-free fire retardant, 1 to 20% of a thermoplastic elastomer, 0.1 to 1% of an anti-oxidant, 0.1 to 3% of a lubricant and 0 to 5% of a functional auxiliary agent. According to the invention, the inorganic substance with low thermal decomposition temperature is added into a polypropylene resin as a foaming agent, and water vapor generated in the decomposition of the inorganic substance is utilized for formation of bubbles; the halogen-free fire retardant is added at the same time, which enables the polypropylene resin to have a certain degree of flame resistance, thereby enlarging the utilization scope of the polypropylene resin; a pre-foaming polypropylene material is obtained through blending fusion extrusion and granulation of an obtained mixture with an extruder, and then a variety of foaming products are produced by utilizing molding equipment like injection molding or mould pressing equipment.

The invention relates to a production method, in particular to a method for producing conductive geotextile. The method for producing the conductive geotextile comprises the steps of raw material selection, raw material screening, drying, fusion, spinning, cross air blow cooling, airflow drafting, swinging, net laying, mixed even feeding of metal fibers, carbon fibers and other short fibers, ironing conducted by a hot roller, shaping conducted by a pre-needle machine, reinforcing shaping conducted by a first main needle machine, repair shaping conducted by a second main needle machine, cloth containing conducted by a cloth containing machine, trimming and rolling. The geotextile produced according to the method for producing the conductive geotextile has the protective performance, the isolating performance, the waterproof performance, the filtering performance and the like of traditional geotextile, further has the conductive characteristic and is a good electrode material. According to the method for producing the conductive geotextile, the production technology is stable, control over the thickness of a material is good, the control range of the puncture density is large and is 50 to 500 stitches/cm<2>, the controllable range of the permeability performance of the material is large and is (1.0-9.9)*(10<-1>-10<-3>)cm/s, the strength of the product is high, and the thickness reaches 20mm.

The invention discloses a high-precision washing process for a raw part of a gold coin or a silver coin and relates to the field of surface clearing of work pieces. The high-precision washing process comprises the following sequentially-set steps: emulsification, vacuum water shearing, hydrocarbon washing, vacuum bath-washing and gas-phase washing; therefore high-precision washing of the raw part of the gold coin or silver coin can be realized by means of control on vacuum degree, temperature of a detergent, ultrasonic wave frequency and washing time in each step. The high-precision washing process disclosed by the invention is complete in pollutant treatment, high in yield, high in automation degree in each step and capable of satisfying the environment protection requirements by adopting an environment-friendly detergent in each step.

A VOC-free (volatile organic compounds free) epoxy resin and HNT (halloysite nanotube) composite self-repair coating comprises the following components: waterborne epoxy resin and HNT composite emulsion, a curing agent, 0.1-0.8 part of a leveling agent, a wetting agent and a defoaming agent; a preparation method includes the steps: first, weighing 69.5-145 parts of waterborne epoxy resin emulsion in a three-port flask, weighing 0.5-5 parts of HNT loading a corrosion inhibitor, adding to the three-port flask, and electrically and chemically stirring; second, ultrasonically dispersing, moving to an electric stirring device, stirring, repeating three times to form disperse, stable and homogeneous waterborne epoxy resin and HNT composite emulsion; third, mixing well the waterborne epoxy resin and HNT composite emulsion, the curing agent, the leveling agent, the wetting agent and the defoaming agent to required fineness; the coating has antiseptic and self-repair functions; the coating is green, nontoxic and harmless, good in adhesion, high in hardness, simple to prepare and low in production cost.

The invention relates to slow-release magnetized composite fertilizer for planting rapeseed and its preparation method. The slow-release magnetized compound fertilizer for planting rape includes the following raw materials in parts by weight: 24-28 parts of urea, 18-22 parts of potassium dihydrogen phosphate, 3 to 5 parts of calcium powder, 10 to 16 parts of potassium chloride, 2 to 2.5 parts of humic fertilizer, 0.2 to 0.5 part of selenium-rich fertilizer, 0.5 to 1 part of magnesium sulfate heptahydrate, 1 to 2 parts of starch ether, 4 to 8 parts of fertilizer additives, and 34 to 40 parts of magnetic carrier. The slow-release magnetized composite fertilizer for planting rapeseed is characterized in that the iron mineralized tailing sand compound fertilizer is magnetized, the soil environment is improved, the fertilization period of the fertilizer is enhanced, the nutrition absorption of the crop is enhanced, the lodging resistance and disease resistance of the rape are enhanced, yield and earnings are increased, and the environment is protected.

The invention discloses a low-fluorescence anti-collapse blocking agent for drilling fluid. The low-fluorescence anti-collapse blocking agent is composed of the following components by mass (100%): 45-60% of paraffin wax, 4-8% of a surfactant, 5-10% of a stabilizer, 0.5-2% of an oxygen scavenger, 0.5-2%of a defoamer and the balance of a solvent. A preparation method of the low-fluorescence anti-collapse blocking agent comprises the following steps: sequentially adding formula amount of paraffin wax and surfactant to a No.1 reactor, heating to 30-50 DEG C, and stirring for 50-60 min; sequentially adding formula amount of solvent, stabilizer, oxygen scavenger and defoamer into a No.2 reactor, heating to 40-50 DEG C, and stirring for 30-40 min; and slowly adding the mixture obtained in the No.2 reactor into the No.1 reactor, and enabling reaction at 40-50 DEG C for 2-3 hours to obtain paraffin microemulsion of the low-fluorescence anti-collapse blocking agent. The product level low-fluorescence anti-collapse blocking agent is provided with micron-sized deformable particles, can effectively improve particle size distribution in a drilling fluid system, improves blocking anti-collapse ability of the drilling fluid, has low fluorescence, has good compatibility with other treatment agents, resists the temperature of 190 DEG C, has significant blocking anti-collapse effect especially for hard brittle shale as well as crushing and micro-crack development stratum, and can effectively protect walls of wells.

The invention relates to a rubber buffering and vibration isolating elastomer structure which comprises an upper metal part, a rubber part and a lower metal part. An internal cavity structure is adopted by the rubber body of the invention to increase the buffering stroke of the rubber body, and the buffering deformation of the rubber body can reach 100%; and if the space along the axial direction of the elastomer structure is large enough, the buffering deformation can reach about 150%. The design of the cavity structure greatly increases the buffering deformation stroke of the rubber part by 2-4 times of the traditional rubber isolator, thereby greatly improving the buffering effect. The structure of the invention adopts the design of a gas channel; on the one hand, by the design of the gas channel, when the elastomer bears the impact load, because the action time of the load is short, the gas in the cavity is quickly discharged outwards through the gas channel, and the friction action of the gas and the channel increases the damping of the elastomer structure, thereby increasing the buffering effect of the elastomer structure; and on the other hand, by the design of the gas channel, the gas in the cavity can be smoothly discharged under the action of the load to avoid the uneven deformation of the rubber part caused by sealing of the cavity, thereby ensuring the rigidity stability of the elastomer structure in the deformation process.

The present invention relates to a wagon-type truck capable of allowing fork lifter to directly come into wagon body to make loading and unloading operation, and is characterized by that its back wagon door can be turned, and its one end can be put downand on the ground to form a transition bridge, and when its engine is being in cut-off state, the fork lifter can be passed through the transitionbridge and come onto the platform to make loading and unloading operation, its wagon top can be designed into multi-stage cover hopper form so as to raise top strength, said top portion is equipped with inlet and outlet, so that the crane, belt conveyer or mechanical loader can load and unload goods from wagon top. Its inlet and outlet are equipped with top cover respectively for raintight and preventing coal powder from leaking out, so that it is favorable for environmental protection.

The invention discloses a civil engineering waste treatment device and relates to the technical field of waste treatment. The civil engineering waste treatment device comprises a vibrating screen anda crusher. The vibrating screen comprises a first base and a second base; four springs are fixedly connected to one surface of the first base; the other ends of the springs are fixedly connected to one surface of the second base; a vibrating motor is fixedly connected to one surface of the first base; a vibrating rod is fixedly connected to the output shaft end of the vibrating motor; and the other end of the vibrating rod is fixedly connected to one surface of the second base. By means of an electromagnet structure, the problem that existing iron blocks are not recovered is solved; as sieve pores are formed linearly in an array in the surface of a conveyor belt, the problem that relatively small and hard stone blocks enter the crusher is solved; as the third motor and the third base are slidably connected, the problem that the sizes of the crushed stone blocks cannot be adjusted is solved.

The invention discloses a Cs-137 Gamma-source panoramic exposure apparatus with individual dosimeter calibration and the degree of activity of the invention is not larger than 11.1 GBq (300m Ci). The invention adopts the technique of barrel shutter to open and close a mask channel, and uses a long-stroke air cylinder to push out radioactive source from a storage jar rapidly, and a rotary platform with multiple exposure directions which is placed with the individual dosimeter rotates around the radioactive source, which ensures the even irradiation of the individual dosimeter. The invention uses a remote controller to control the running of the apparatus (setting the irradiation time for automatic irradiation is included), and the invention is provided with a safety door rod, audible and visual alarm, and the safety of an enhanced test system of source availability. The invention can be used for the test and calibration of single or batch X and Gamma individual dosimeters (including TL sheets), and the placement of active or passive individual dosimeters for irradiation which are composed of various detecting elements and have all sizes and shapes. The invention can be taken as a standard apparatus in the department that detects and calibrates radioactive dosage, and the invention can be used for the calibration of individual dosimeters in the field of nuclear facility such as nuclear plants, as well as the field of medical treatment, and the service departments specializing in individual dosage.

The invention relates to tobacco mosaic virus resistant active alkaloid compounds and a preparation method thereof, and belongs to the technical field of biology. An active tracking method is adoptedto obtain the alkaloid compounds with the TMV resistant activity from tobacco, wherein three are new compounds (1-3) [(S)-Nkolbisine-beta-D-glucoside, (R)-Nkolbisine-beta-D-glucoside and Lepabisine A], and nine known compunds (4-12) are firstly separated and obtained from the platymiscium. The alkaloid compounds have the effects of purifying, protecting, treating and inhibiting viral multiplication on the tobacco mosaic virus, the new compound 1 has the stronger virus inhibition effect than the comparator ningnanmycin. One sort of alkaloid compounds with the TMV resistant activity are firstlydiscovered from tobacco, and scientific evidences are provided for further systematic research of tobacco endogenous tobacco mosaic resistant matter.

The invention discloses a portable protective alarm device for a construction area, comprising a protective alarm device body as well as a power module, a detection module, an addressing module and an alarm module installed on the body, wherein the detection module comprises a controller as well as a view module, an ultrasonic module and an infrared module respectively connected with the controller; and the power module is respectively connected with the detection module, the addressing module and the alarm module. The protective alarm device can ensure safe operation of a power grid, effectively solves the safety problems in repair work of a construction area, uses the current relatively advanced acousto-optic, infrared, ultrasonic and image techniques to perform safety protection on the construction area, detects violation of construction in time, sends out different alarm in combination with sites, sends out prewarning when the staff are prepared to enter by mistake, can compensate for defects of other measures, realizes organic combination of technical protection with artificial protection, and prevents the staff from entering an electrified area by mistake, thereby avoiding personal injury accidents and improving the precaution ability of power equipment.

The invention relates to the light-emitting diode (LED) manufacturing field and provides a LED driving power supply. The LED driving power supply comprises a power input end, an electro magnetic compatibility (EMC) circuit, a rectifying circuit, a voltage conditioning circuit, a filtering circuit, an output current voltage detecting circuit and an LED lamp at the output end of the output current voltage detecting circuit, and further comprises a constant current and constant voltage controlling circuit, wherein the power input end, the EMC circuit, the rectifying circuit, the voltage conditioning circuit, the filtering circuit, the output current voltage detecting circuit and the LED lamp are connected in sequence, the constant current and constant voltage controlling circuit is connected with an output end of the output current voltage detecting circuit and an input end of the voltage conditioning circuit, an inductance and a piezoresistor are arranged between the rectifying circuit and the voltage conditioning circuit, the inductance is connected with the rectifying circuit and the voltage conditioning circuit in series, the piezoresistor is connected with the rectifying circuit and the voltage conditioning circuit in parallel, and the input end of the piezoresistor is connected with the output end of the inductance. The LED driving power supply has the advantages that elements with big sizes, high failure rates and high prices are greatly reduced, the structure is simple and reasonable, the cost is lowered and application is stable and reliable. The inductance is added between the rectifying circuit and the voltage conditioning circuit, so that undesirable effects due to the fact that different-mode signals transit to a power grid are restrained, meanwhile the piezoresistor is added, and thereby the ability of the power supply to reject outside surge is improved.

The invention provides a transformer temperature control system and a transformer temperature control method for realizing air cooling system state diagnosis. The transformer temperature control system comprises a control unit and a detecting unit, wherein the detecting unit comprises a multi-path temperature signal detecting module and voltage-current signal detecting modules; the multi-path temperature signal detecting module comprises a detection module arranged inside a low-voltage winding of a transformer and is used for acquiring temperature of the winding, and a detection module used for acquiring ambient temperature or iron core temperature; the voltage-current signal detecting modules are arranged on phases/lines of a fan of an air cooling system; signals acquired by means of thedetection modules are converted into data signals by means of an A/D conversion module after passing through an amplification module; and the control unit comprises a controller, the controller is used for controlling the on-off and operating state of the fan and performing fault diagnosis according to the acquired temperature and the voltage and current of the fan, and the controller records thecontrol process and diagnostic results.