35results about How to "Help to get out" patented technology

The invention discloses an injection mold for a decorative ring, and solves the problem that the use effect of a decorative ring is influenced by abandoning a dense clamping structure due to the influence of factors such as an incompact traditional core pulling structure of an injection mold in the structural design of the decorative ring in the prior art. According to the invention, the decorative ring injection mold is characterized in that the decorative ring injection mold comprises a movable mold and a fixed mold; the movable mold comprises a movable mold bottom plate, a movable mold coreand an ejection mechanism; the movable mold core is provided with a forming convex ring, a first forming groove and a second forming groove on the parting surface of the movable mold; the movable mold core comprises a movable mold frame, a straight ejection block and a core pulling structure; the core pulling structure comprises a core pulling hole, a core pulling piece and a limiting sliding groove; the axis of the core pulling hole and the axis of the corresponding clamping hole to be formed are located on the same straight line; the other end of the core pulling piece is provided with a limiting clamping block matched with the limiting sliding groove in a clamped mode; and the limiting sliding groove inclines in the direction away from the clamping hole to be formed in the direction away from the movable mold core. The core pulling structure of the decorative ring injection mold is high in compactness.

The invention discloses a stimulation device comprising: a belt (10) containing at least two vibration modules (5, 7, 9), wherein each of the at least two vibration modules (5, 7, 9) comprises: a pod(4) with a casing (6, 26) and a vibration pad (24) arranged within the casing (6, 26), and a vibration motor (20) with a flywheel (28) within the casing (6, 26), a control panel (15) operating said vibration motors (20) of the at least two vibration modules (5, 7, 9); wherein the vibration motor (20) is mounted to the vibration pad (24) via at least one elastic motor housing (22). The invention further discloses the use of such a device for treating hypoventilation and respiratory depression and a method of treating hypoventilation and respiratory depression by fastening a belt (10) to the abdomen of a user and operating the belt (10), wherein the at least two vibration modules are externally applied to an abdominal region of a user to stimulate the diaphragm, to enhance pulmonary function.

The invention discloses a dehydroxylation annealing method for large-sized optical fiber preforms. The method comprises the following steps: 1) placing the optical fiber preforms in an annealing furnace; 2) performing four-stage heating on the optical fiber preforms to a destressing temperature; 3) performing heat preservation; and 4) performing four-stage cooling on the optical fiber preforms toa cooling temperature. According to the method provided by the invention, the preforms are subjected to four-stage gradual heating to the destressing temperature, so that the thermal stability of thepreforms can be guaranteed; through four-stage gradual cooling, the purpose that heat in the preforms can be gently and uniformly emitted can be effectively guaranteed; and heating and cooling are performed under vacuum environment, and compared with the non-vacuum environment, the vacuum state is more conducive to separation of residual He and hydroxyl in the optical fiber preforms, and has a better effect.

The invention relates to an electrolysis device which uses magnetoelectric coupling to control the movement of oxygen bubbles, and belongs to the field of energy storage, metal deposition electrolysis, purification and electrolytic synthesis electrochemical technology. A pair of electrodes, the electrolytic cell is filled with electrolyte, and also includes a magnet on the outer surface of the electrolytic cell corresponding to the anode or cathode, which is used to make the oxygen bubbles move along the surface of the anode during the electrolysis process. The device not only solves the problem of oxygen bubble accumulation, but also promotes more uniform composition and temperature of the electrolyte, curbs dendrite growth, improves the surface quality of metal deposition and saves energy; in addition, it can also promote the directional movement of the electrolyte. The invention can be widely used in the fields of rechargeable metal-air batteries, fuel cell regeneration, water electrolysis, metal electrodeposition, electrolytic purification and electrolytic synthesis, and can also be used in the field of directional movement of objects.

The invention discloses an injection mold for a decorative ring, and solves the problem that the use effect of a decorative ring is influenced by abandoning a dense clamping structure due to the influence of factors such as an incompact traditional core pulling structure of an injection mold in the structural design of the decorative ring in the prior art. According to the invention, the decorative ring injection mold is characterized in that the decorative ring injection mold comprises a movable mold and a fixed mold; the movable mold comprises a movable mold bottom plate, a movable mold coreand an ejection mechanism; the movable mold core is provided with a forming convex ring, a first forming groove and a second forming groove on the parting surface of the movable mold; the movable mold core comprises a movable mold frame, a straight ejection block and a core pulling structure; the core pulling structure comprises a core pulling hole, a core pulling piece and a limiting sliding groove; the axis of the core pulling hole and the axis of the corresponding clamping hole to be formed are located on the same straight line; the other end of the core pulling piece is provided with a limiting clamping block matched with the limiting sliding groove in a clamped mode; and the limiting sliding groove inclines in the direction away from the clamping hole to be formed in the direction away from the movable mold core. The core pulling structure of the decorative ring injection mold is high in compactness.

A multi-heat pipe composite high-power electronic chip radiator belongs to the technical field of electronic product auxiliary equipment, including an annular steam cavity base, a gravity heat pipe, heat-driven pulsating flow heat pipe fins, fastening handles, tie hoops, and a cooling fan , enclosure brackets and fastening bolts; the gravity heat pipe is vertically installed on the base of the annular steam chamber, and its internal cavity is connected with the inner ring cavity of the base of the annular steam chamber and is sealed; several heat-driven pulsating flow heat pipe fins The staggered clamping is fixed in the multi-layered flower-shaped card slot on the outer side of the upper shell of the gravity heat pipe, and is tightly fixed to the outer wall of the gravity heat pipe through the fastening handle and the tie hoop. The invention realizes the rational distribution, efficient transportation and release of the heat produced by the high-power electronic chip in the three-dimensional heat dissipation space, and the heat dissipation power is large and the efficiency is high.

The invention discloses a magnetic nanoparticle, a preparation method thereof and an application in a transfection reagent, comprising: synthesizing the magnetic nanoparticle by a co-precipitation method; adding the magnetic nanoparticle into a hydroxide ion solution to obtain a hydroxide ion Ion-modified iron ferric oxide nanoparticles; adding the hydroxide ion-modified magnetic nanoparticles into a metal cation solution to obtain positively charged magnetic nanoparticles on the surface for magnetic transfection. The magnetic nanoparticles synthesized by this method are small in particle size, suitable for endocytosis, and have positive charges distributed on the surface, which can bind to nucleic acid through electrostatic interaction, and play the role of concentrating and folding nucleic acid. When the magnetic nanoparticles provided by the invention are used for magnetic transfection, the safety risk of transfection to cells is effectively reduced, and the transfection efficiency is further enhanced.

The invention relates to a cleaning agent composition, comprising an A agent and a B agent. The A agent and the B agent are stored independently. The A agent comprises a non-ionic surfactant and a dispersing agent, wherein the non-ionic surfactant is a fatty alcohol-polyoxyethylene ether; and the dispersing agent is selected at least one from an organic phosphonic acid, a poly-aspartic acid, a polyepoxysuccinic acid and a co-polymer and / or a homopolymer obtained by polymerization of at least one of an unsaturated organic acid, an unsaturated organic acid ester and an unsaturated organic acid anhydride. The B agent contains a foaming agent. The invention also relates to a method for cleaning a reverse osmosis membrane by using the above cleaning agent composition. A cleaning liquid prepared by the cleaning agent composition can clean the reverse osmosis membrane effectively, makes water yield of a reverse osmosis system restore basically, and can significantly reduce front-and-back pressure difference of the reverse osmosis membrane and reduce conductivity of produced water.

The invention discloses a surface fractal enhanced water electrolysis hydrogen production device and method, belonging to the technical field of electrolysis hydrogen production. The device includes an anode plate and a cathode plate. From the anode plate to the cathode plate, a first gas diffusion layer, a first catalyst layer, a proton exchange membrane, a second catalyst layer and a second catalyst layer are sequentially arranged between the anode plate and the cathode plate. Gas diffusion layer; the surface of the first gas diffusion layer and the surface of the second gas diffusion layer are provided with a convex-concave structure, and / or the surface of the first catalyst layer and the surface of the second catalyst layer are provided with a convex-concave structure. By setting the convex-concave structure, the fractal treatment is hydrophilic and gas-repellent, which helps the bubbles to escape from the orifice, reduces the gas coverage on the surface of the catalyst layer and the gas diffusion layer, and promotes the bubbles generated by the reaction to quickly reach the flow channel of the plate, improving the electrolysis process. efficiency. The corresponding method is to use the above-mentioned water electrolysis hydrogen production device to carry out electrolysis.