58results about How to "Easy to break through" patented technology

The invention relates to a hot rolling spray cooling method for a large cylinder, which is characterized in that an upper spray device and a lower spray device are manufactured; after a large cylinder is rolled, the cylinder is clamped by an upper roller and a lower roller, so that the cylinder is rotated by the driving of frictional force; additionally, the lower spray device extends into the cylinder, and the upper spray device is arranged outside the cylinder; the length of cooling water pipes on the upper spray device and the lower spray device is regulated, so that a connecting line of all of the cooling water pipes on each spray device near the wall end of the cylinder forms a semicircle shape which is concentric with the cylinder; and additionally, the quantity ratio of the cooling water pipes on an upper spray collecting plate and a lower spray collecting plate of the upper spray device and the lower spray device and the flow ratio of cooling water are regulated, so as to cool the inner and outer surfaces of the large cylinder at the same cooling speed after rolling. The hot rolling spray cooling method has the advantages that the problem of uneven cooling of the traditional cylinder heat treatment is solved, the cooling efficiency is increased, the coefficient of heat transfer of the surface of the cylinder is increased on the initial stage of cooling, and the surface quality of the cylinder is greatly increased.

The invention relates to a shielded type printed circuit board, which comprises a printed circuit board, a shielding film and a strengthening component. The printed circuit board comprises a base component and an insulation film, wherein a circuit pattern used for ground connection is formed on the base component, the insulation film is arranged on the base component, the circuit pattern used for ground connection is covered by the insulation film, and an electronic component is connected at the installation place of the lower surface of the base component. The shielding film arranged on the printed circuit board comprises an electric conduction layer and an insulation layer, wherein the electric conduction layer is equipotential with the circuit pattern used for ground connection, and the electric conduction layer is arranged on the printed circuit board and is used for covering a part of a zone or the whole zone opposite to the installation place; and the insulation layer is arranged at the electric conduction layer. The strengthening component has electroconductivity and is arranged on the shielding film at the zone opposite to the installation place. The strengthening component is jointed with the insulation layer by electric conductivity cement containing spherical electric conductivity particles. The thickness of the insulation layer is less than the raising length of the electric conductivity particles from the electric conductivity cement under the joint state of the electric conductivity cement and the insulation layer, and the electric conductivity particles are in contact with the electric conduction layer under the joint state of the electric conductivity cement and the insulation layer.

The invention discloses a mechanism for preventing a card from overturning in a card case. The mechanism is characterized in that: the mechanism comprises a pressing card mechanism and at least a set of overturn prevention mechanism; two relative side plates of the card case (card storage case) are respectively provided with a vertical long strip guide groove used for elevating guiding of the pressing card mechanism; two sides of the pressing card mechanism are provided with a guiding shaft or a guiding sheet; one side plate of the card case is provided with a sidewall guide rail used for horizontal guiding of the overturn prevention mechanism, and quantity of the sidewall guide rail is equal to quantity of the overturn prevention mechanism; the overturn prevention mechanism comprises an installation support and a locking plate; a front end of the installation support is provided with a locking plate rotating shaft, and both the locking plate and a reset torsion spring are sleeved on the locking plate rotating shaft; one end of the reset torsion spring is provided on the installation support, and the other end of the reset torsion spring is provided on the locking plate. According to the invention, the card is effectively and automatically prevented from overturning, operation is convenient, and conception is ingenious.

The invention discloses an adjustable aerofoil and a double-body aircraft aerofoil layout scheme thereof. The double-body aircraft aerofoil layout scheme is as follows: two fuselages are arranged side by side and the insides of the two fuselages are connected through a rectangular main aerofoil. The used rectangular main aerofoil is characterized in that the outer flexible aerofoil skin is supported by a plurality of inner rollers which can rotate to drive the flexible aerofoil skin, thus initiatively increasing the relative speed between the upper and lower surfaces of the aerofoil and the air flow; and the positions of the rollers can be adjusted to change the airfoil profile and adapt to different flight speeds. Compared with the existing fixed wing aircraft, the aircraft with the adjustable aerofoils of the invention has higher weight capacity and smaller floor space and has less resistance in the high-speed flight; and during the low-speed flight, the aircraft has the advantages of lower level flight speed, safer ultra-short take-off and landing and the like.

The invention firstly aims to provide a protective device used for a karst cave. The protective device comprises a sleeve, a sleeve connector and a sleeve blade leg. A first external thread and a first internal thread are arranged on the sleeve, a second internal thread is arranged on the inner wall of the lower end of the sleeve connector, and the outer wall of the lower end of the sleeve connector is of a first cone-frustum-shaped structure wide in upper portion and narrow in lower portion. A second external thread is arranged on the outer wall of the upper end of the sleeve blade leg, and the outer wall of the lower end of the sleeve blade leg is of a second cone-frustum-shaped structure wide in upper portion and narrow in lower portion. The overall structure is simple, the sleeve, the sleeve connector and the sleeve blade leg are in threaded connection, and installing is convenient. The cone-frustum-shaped structure on the sleeve connector facilitates broaching. The cone-frustum-shaped structure on the sleeve blade leg facilitates perforation of non-karst-cave filling, and therefore the protective device used for the whole karst cave is stably buried and is high in practicability. The invention secondly aims to provide a water-based channel drilling method. Operation is convenient, the drilling cost is lowered, and time consumed for sleeve burying and cutoff is shortened.

The invention discloses a multi-chamber fluid packaging bag. The multi-chamber fluid packaging bag comprises a mixed bag and at least two mutually independent soft bag bodies, one side of each soft bag body is provided with a bag opening, one side of the mixed bag is provided with a sealing edge which makes the bag openings communicated with the mixed bag by extruding the soft bag body, and the other side of the mixed bag is provided with a sealing edge used for opening or sealing the mixed bag. By connecting multiple soft bag bodies with individual sealed spaces and a mixed bag to the packaging bag, multiple spices with different flavors can be contained and extruded into the mixed bag to be completely mixed, inconvenience brought by using third party equipment is avoided, the situation that due to the fact that two spices are contained in the same packaging bag, the ingredients lose effectiveness is avoided, by extruding the soft bag bodies, spices in all bag chambers can be extruded into the mixed packaging bags to be mixed and then extruded out, the situation that when the spices are used, the spices make contact with hands or clothes or other objects is prevented, hygiene and convenience are achieved, and waste is avoided.

The invention relates to a pressure relief device, in particular to a pressure relief device for power distribution cabinets. The pressure relief device for the power distribution cabinets is simple and reasonable in structure, safe and reliable to use and good in heat dissipation effect. According to the technical scheme, the pressure relief device comprises a pressure relief plate and pressing bars; the pressure relief plate is installed on the top of a low voltage power distribution cabinet, one side of the pressure relief plate is fixed to the low voltage power distribution cabinet, one ends the pressing bars are fixed to the low voltage power distribution cabinet, and the other ends of the pressing bars press the other side of the pressure relief plate to fix the pressure relief plate; the pressure relief plate is provided with a plurality of air holes, one side of the pressure relief plate is provided with first bolt holes, and the pressure relief plate is further provided with a plurality of rectangular through holes in the arrangement direction of the first bolt holes; one ends of the pressing bars are provided with second bolt holes, and the pressing bars are further provided with square holes located in the outer sides of the second bolt holes. The pressure relief device is simple and reasonable in structure and safe and reliable to use, and is widely applied to the power distribution cabinets.

The invention discloses a pharmaceutical composition for killing diamondback moth, including alum extract, dry lacquer charcoal extract, torreya extract, polygala extract, jackfruit extract, caperia japonica extract, and inula inula extract , Scrophulariaceae extract, Qingpi extract and toosendanin. The pharmaceutical composition described in the present invention can kill Plutella xylostella in a targeted manner without any toxic and side effects on natural enemies of Plutella xylostella, has good safety, good biodegradation, no pollution and irritating odor, and no environmental toxicity. There is no residue in the animal body, does not destroy the ecological balance, and has little impact on the crop growth environment; it has good permeability and moisture, interferes with the nervous system of the insect body, inhibits the synthesis and development of insect eggs, and is not easy to develop drug resistance; quick-acting Well, it is suitable for widespread application in pest control.

The invention discloses an environment-friendly insecticide and a preparation method and application thereof. The insecticide is prepared from, by weight, 30-50 parts of the root of Chinese pulsatilla, 80-100 parts of pyrola, 10-20 parts of thunder god vine, 10-20 parts of radix euphorbiae lantu, 25-40 parts of radix arnebiae seu lithospermi, 10-20 parts of eupatorium, 5-10 parts of polysorbate, 5-10 parts of dimethyl sulfoxide, 2-5 parts of turpentine, 2-5 parts of ethyl alcohol, 1-2 parts of sorbic acid and 100-200 parts of softened water. The insecticide is free of pollution, safe and obvious in deinsectization effect.

The invention discloses an insecticide and a preparation method thereof. The insecticide is prepared by using the following raw materials in the weight ratio: 10-20 parts of calla lily, 50-60 parts of deer's grass, 5-10 parts of vine vine, mother-in-law 5-10 parts of grass, 20-30 parts of comfrey, 5-10 parts of Perrin, 0.5-5 parts of polysorbate, 0.5-5 parts of dimethyl sulfoxide, 1-3 parts of turpentine, 1-3 parts of ethanol, flower 0.5-1 part of catallic acid and 50-100 parts of demineralized water. The insecticide of the present invention is pollution-free, safe and has obvious insecticidal effect.

The present invention discloses a radish killing agent suitable for large-scale production. Extract, Cinnamon Extract, Qingming Willow Extract and Indoxacarb. The pharmaceutical composition described in the present invention can specifically kill the burdock mud, and has no toxic and side effects on the natural enemies of the burdock mud, has good safety, good biodegradation, no pollution and irritating smell, and no environmental toxicity. There is no residue in the animal body, does not destroy the ecological balance, and has little impact on the crop growth environment; it has good permeability and moisture, interferes with the nervous system of the insect body, inhibits the synthesis and development of insect eggs, and is not easy to develop drug resistance; quick-acting Well, it is suitable for widespread application in pest control.

The invention discloses a preparation method of a pharmaceutical composition for killing scarab beetles, which comprises the following steps: 1) preparing raw materials; 2) decocting pomegranate peel, jasmine bark, and purple pearl leaves with water for two times, and the medicinal solution is set aside; 3) Add water to decoct cinnamon, thousand hammers, Qingfengteng, Qumai, Qingyuzi, and Huangpigen twice, filter, and concentrate the filtrate to a relative density of 1.8; 4) Combine the liquid medicine; 5) Adjust the pH value of the solution ; 6) Filter, fill, sterilize, and obtain. The pharmaceutical composition described in the present invention can kill scarabs in a targeted manner, has good safety, good biodegradation, no pollution and irritating odor, no environmental toxicity, no residue in animals, and does not destroy ecological balance. The crop growth environment has little impact; it has good permeability and moisture, interferes with the central nervous system of insects, inhibits the synthesis and development of insect eggs, and is not easy to develop drug resistance; it has good quick effect and is suitable for widespread application in pest control.

The invention provides high-altitude projection fire extinguishing equipment. The equipment comprises a bracket, a projection device, a crushing device positioned above the projection device and connected with a feeding port of the projection device, a feeding box positioned above the crushing device and connected with a feeding port of the crushing device, a first hot air balloon positioned abovethe feeding box and a first pull rope connected between the first hot air balloon and the bracket, wherein a discharge port of the projection device is vertically arranged downwards or obliquely arranged downwards relative to the horizontal plane. By arrangement of the first hot air balloon, the projection device can be drawn to a position right above or lateral above a fire site to project sandfrom top to bottom. The projection force needs not to overcome gravity action, and can form joint force with gravity to push the sand to move down. The grounding impact force is relatively large, barriers can be easily broken through to cover flames accurately, and strong airflow can also be formed to extinguish the surrounding flames on the basis of coverage of combustibles and prevention of combustion of the combustibles, so that fire extinguishing efficiency is relatively high.

The invention discloses a preparation method of a pesticide composition for killing cotton bollworms. The preparation method comprises the following steps: 1) preparing raw materials; 2) adding waterto decoct semen hydnocarpi, fructus ulmi and cortex pseudolaricis twice, obtaining a pesticide liquid for later use; 3) adding water to decoct rhizome of canereed spiralflag, herba houttuyniae, flowerbelge, salix magnifica, radix curcumae and iris tectorum twice, filtering, concentrating a filtrate to the relative density of 1.15; 4) combining pesticide liquid; 5) regulating the pH value of a solution; 6) performing filtration, filling, and sterilization to obtain the pesticide composition. The pesticide composition kills the cotton bollworms in a targeted manner, is good in safety and biological degradation, is pollution-free, has no pungent smell, no environmental toxic effect and no residue in an animal, does not destroy the ecological balance, has low effects on the growing environmentof a crop, is relatively good in permeability and wettability, kills the central nervous system of an insect, inhibits the formation and development of a worm egg, does not cause drug resistance easily, is good in fast-acting property, and is suitable for extensive popularization and application in the field of pest control.

The present invention discloses an electrode wire. The electrode wire comprises a connecting wire and an implantation end; the implantation end comprises an implantation head capable of moving back and forth; and the implantation head penetrates into body tissue in a puncture mode. A mode that the implantation head penetrates through the body tissue is set to be a puncture mode, so that the implantation head can break through the endocardium very easily, implantation of the implantation head is more convenient and labor-saving, and selection of pace-making sites is more diversified.