42results about How to "Low chance of exposure" patented technology

The invention provides electronic equipment. The electronic equipment comprises a shell, a camera decorating part and an electroacoustic assembly, wherein the camera decorating part is fixed to the shell and protrudes relative to the appearance face of the shell; the camera decorating part is provided with a top close to the appearance face, a bottom opposite to the top and a sound guide hole extending from the top to the bottom, the sound guide hole penetrates through the peripheral side wall, close to the appearance face, of the decorating part, the electroacoustic assembly is fixedly connected with the bottom and is aligned to the sound guide hole, and the sound guide hole can conduct external sound to the electroacoustic assembly. The sound guide hole penetrates through the peripheralside wall, adjacent to the appearance surface, of the camera decorating part, so that the sound guide hole is relatively hidden in appearance, the appearance integrity of the electronic equipment is improved, the probability that the peripheral side wall, adjacent to the appearance surface, of the camera decorating part makes contact with the surface of a foreign object or the hand of a user is small, and dust or water can be prevented from invading the sound guide hole.

The invention provides a silt curing agent prepared from steel slag modified phosphogypsum and a use method thereof. The silt curing agent comprises the following components: 40-70% of steel slag modified phosphogypsum powder, 30-60% of a cementing agent and 1-10% of a reinforcing agent, wherein the steel slag modified phosphogypsum powder is formed by mixing and modifying 5-25% of steel slag and75-95% of phosphogypsum by mass percentage. According to the invention, phosphogypsum is firstly modified by steel slag, alkaline substances of the steel slag react with soluble phosphoric acid, calcium phosphate and fluoride impurities contained in the phosphogypsum to be converted into insoluble precipitate substances, the adhesion among crystals in increased, so that the bonding performance ofphosphogypsum is improved, and meanwhile, acidic substances like sulfuric acid and phosphoric acid in the phosphogypsum are mixed with the steel slag to destroy the vitreous structure in the steel slag, so that the compact silicate vitreous structure in the steel slag is dissociated, the hydration activity of the steel slag is improved, and the strength of silt cured by the curing agent is furtherimproved.

The invention provides a biochemical recovery second-generation toilet seat and a matching apparatus thereof, wherein urination and defecation are divided in the toilet seat; a full-automatic odor blocking apparatus is arranged under a defecation channel; five holes are arranged on a urination discharging tank; a urination storage pipeline is arranged under the urination discharging tank; and a hole site is reserved at the back of a branch pipe for connecting a feces delivery pipe and the toilet seat, and a connecting pipe is connected on the hole site. The port of a plastic bucket with non-glue dry powder is pressed, a center hole connecting pipe is inserted into an air bag in the bucket, and the non-glue dry powder can be sprayed to the branch pipe through the connecting pipe; and after a user uses the toilet, a panel is covered, a handle at the front end of the toilet seat is lifted, and a piercing cross bar which is arranged on a connecting rod screwed at a center hole overcomes the tensile force of a spring arranged on the connecting rod while ascending so that a gag at the lower end of the connecting rod goes upwards from a urination outlet along a guide railing barrel and urine flows out of the urination outlet to wash the baffle plate of the full-automatic odor blocking apparatus and defecation reserved in the branch pipe and supported by the non-glue dry powder, thus achieving the purpose of flushing a toilet without water or with a little water.

The invention discloses an RH vacuum powder spraying refining device and a powder spraying method thereof, and belongs to the technical field of molten steel external refining. The RH vacuum refiningpowder spraying device comprises a vacuum molten steel circulating device and a powder spraying device. The vacuum molten steel circulating device comprises a vacuum chamber, a dip pipe, a steel ladleand a lifting gas pipeline. The powder spraying device comprises a powder spraying element, a powder supply pipe, a buffer gas chamber and a quick connecting part. The powder spraying method comprises but is not limited to refining and alloying functions of desulfurization, deoxidation, inclusion removal, alloy addition and the like. The RH vacuum powder spraying refining device and the powder spraying method thereof have the advantages that the bottom of a vacuum tank is improved on the basis of an RH conventional structure, and spray pipe mounting parameters can be adjusted to meet the process requirements of different steel types; and implementation is easy, maintenance is convenient, the production efficiency can be improved, the production cost is saved, and the application prospectsare good.

The invention discloses a stirring barrel and a method for preparing environmentally-friendly cutting oil by using the stirring barrel, and belongs to the technical field of metalworking. According tothe main technical points, the stirring barrel comprises a barrel body with an opening in the upper end; a discharging pipe is arranged at the lower end of the barrel body; a rotating shaft is connected in the barrel body in a rotating mode; the lower end of the rotating shaft extends into the barrel body and is provided with a stirring assembly; a mounting base is arranged at the center of the upper end of the barrel body; the stirring assembly comprises a shaft sleeve disc, a fixing disc, a plurality of stirring shafts and and a driving assembly, wherein the shaft sleeve disc is fixedly connected to the mounting base, the fixing disc is fixedly connected to the rotating shaft, the stirring shafts are connected to the peripheral side of the fixing disc, and the driving assembly is arranged on the rotating shaft; the driving assembly comprises a main gear, secondary gears and a motor, wherein the main gear is fixedly connected to the rotating shaft, the secondary gears are fixedly connected to the corresponding stirring shafts, and the motor is arranged above the mounting base; and each secondary gear is arranged outwards in the radial direction of the fixing disc and meshes withthe main gear. The stirring barrel and the method have the advantages that the operation is convenient and simple, in addition, the contact probability between the cutting oil and oxygen can be lowered, and therefore the quality of the environmentally-friendly cutting oil can be improved.

The invention discloses a blending bucket and a method for preparing cold heading oil with the same, and belongs to the technical field of metal processing. The blending bucket is technically characterized by comprising a bucket body which is open at the upper end, wherein a discharging pipe provided with a valve is arranged at the lower end of the bucket body; a revolving shaft is rotationally connected into the bucket body; a stirring assembly is arranged at the lower end of the revolving shaft; a mounting base is arranged at the upper end of the bucket body; the stirring assembly comprisesa box, a plurality of stirring shafts which are connected to the periphery of the box through bearings, and a driving assembly mounted on the revolving shaft; the driving assembly comprises a first bevel gear which is fixedly connected to the revolving shaft, second bevel gears which are fixedly connected to corresponding stirring shafts respectively, and a motor which is mounted on the revolvingshaft; each second bevel gear is arranged outwards along the radial direction of the revolving shaft, and is meshed with the first bevel gear. By adopting the blending bucket, the mixing effect of thecold heating oil can be improved. The preparation method is convenient and easy to operate, and the probability of contact between the cold heating oil and oxygen can be reduced, so that the qualityof the cold heading oil is improved.

The invention relates to an electrolyte solution negative pressure rotational absorption device for an alkaline dry cell. The device comprises a base (1), a stand column (2) fixed with the bottom plate, and a top plate (3) fixedly arranged at the top of the stand column, wherein a supporting cup rotation mechanism (6) is arranged on a driving shaft (4); and a plurality of supporting cups (8) for mounting a battery (7) are uniformly distributed on the supporting cup rotation mechanism (6). The device further comprises a negative pressure absorption structure (9) used for enabling the battery (7) to be in a negative pressure state and then injecting an electrolyte solution into the battery (7), and two spray guns (92) used for injecting the electrolyte solution into the battery (7) centrifugally. According to the technical scheme, the problem that the electrolyte solution is not fully absorbed in a normal pressure state is solved; the injection and absorption processes of the electrolyte solution are combined together; and the electrolyte solution is rotationally absorbed, so that the absorption efficiency of the electrolyte solution is high.

The invention discloses a pole injecting device capable of achieving automatic physical disinfection. The pole injecting device is composed of a pole injector, a power source, a spring, a shell, and an ultraviolet lamp. When the pole injecting device is in use, since the pole injector is utilized, remote-distance injection can be implemented, the trouble that the action of injection operation which can be implemented only when operational personnel jump into an animal fence is saved, thus the working efficiency is improved, and the amount of animals injected in unit time is sharply increased; meanwhile, the probability of the contact of the animals and the operational personnel is lowered, and thus mutual cross infection (contamination) is prevented. Besides, when the pole injecting device is in use, the feature that the wave length of ultraviolet c (UVC) is 200-275 nm and is within a microbe absorption peak range, and the ultraviolet c (UVC) can kill virus and germs within one second by destroying DNA(RNA) structures of microorganisms is utilized, so that a needle tip is quickly disinfected. The purpose that one needle can be used for injecting continuously without being replaced is achieved, and pestilence cross infection among animals is also effectively avoided. Besides, the time spent for disinfecting the needle tip through the ultraviolet is short, and the medicine quality is not influenced.

The invention discloses a qualitative detection method for wind-heating cold particles. The method comprises the steps of 1) taking the wind-hot cold particles, adding ethanol, heating to boiling, filtering after cooling, and obtaining a filtrate; performing a ninhydrin chromogenic reaction or a fluorescence reaction on the filtrate; 2) taking the wind-hot cold granules to prepare a test solution,taking forsythia suspensa vahl control medicinal materials to prepare a control medicinal material solution, and testing according to a thin layer chromatography method; 3) taking the wind-heat coldgranules as the test solution; taking the mint medicinal material to make the reference medicinal solution; testing according to thin layer chromatography; 4) taking the wind and heat granules as thetest solution; taking the burdock medicinal materials to prepare the reference medicinal solution; testing according to thin layer chromatography. The method can accurately determine the authenticityof the variety. Further, the method can avoid the one-sidedness of determining the quality of the drug by merely measuring a single component.

The invention relates to a high-efficiency rotating injection mechanism for an electrolyte. The high-efficiency rotating injection mechanism comprises a work bench (1), a sliding block (2), an injection barrel (3) and spray gun connecting rods (323), wherein the sliding block (2) is movably arranged on the work bench (1); the injection barrel (3) comprises a first barrel body (30), injection rods (31) and spray guns (32); the spray guns (32) are arranged on a bottom plate (303) of the first barrel body (30); rotary mobile grooves (3030) for the spray guns (32) are formed in the bottom plate (303); the spray gun connecting rods (323) connect the spray guns (32) into a whole; the spray gun connecting rods (323) are connected with and provided with a motor (324); and the motor (324) drives the spray guns (32) to move along the rotary mobile grooves (3030). The invention provides the electrolyte injection mechanism. The electrolyte absorption mode in the mechanism is rotary centrifugal injection; injection of the electrolyte is finished by twice; and the electrolyte absorption effect is good.