14results about How to "Avoid causing" patented technology

The invention discloses a preparation method and application of a metal corrosion-resistant composite interface layer. The problem that an existing electrophoretic coating is insufficient in protection performance is solved. The composite interface layer takes epoxy acrylic cationic resin as a matrix, and contains graphene nanosheets loaded with metal organic framework (MOF) particles and the like; the electrophoresis solution comprises the following components in percentage by mass: 20-30% of resin, 10-20% of talcum powder, 3% of a defoaming agent, 3% of a dispersing agent, 1-10% of GO-MOF and the balance of deionized water. The preparation method comprises the following steps: metal pretreatment, electrophoresis at 60-120V for 0.5-3min, and curing at 160-180 DEG C for 20-30min. GO-MOF enhances the compactness of resin bonding and an interface layer and adsorbs a corrosive medium, Tafel tests show that the corrosion resistance is remarkably improved, and the GO-MOF composite material is suitable for corrosion prevention of a battery pack shell.

The present invention discloses a laparoscope structure, including a lens, a handle for holding and operation, and a sheath tube for illuminating optical fiber and cable therebetween, the illuminating optical fiber passes through the handle and extends to the sheath tube, the handle includes a core bracket and a shell that cooperates with it to achieve sealed installation, the core bracket includes two arc rods that are installed with the length direction as the axis and cooperate with the shell shape, and mounting parts located at the front and rear ends of the core bracket and cooperate with the shell for sealed installation, and the circuit board in the handle is installed in the space surrounded by the two arc rods. The present invention adopts a structure in which the core structural parts and the shell structural parts are installed separately, and the structural parts are easy to assemble and maintain. The core structural parts are integrated to increase strength and rigidity, and can ensure that the front and rear ends are coaxially installed to ensure the sealing effect.

The utility model relates to cement production technical field, concretely is efficient anti -blocking cement batching feeding device, including mixing jar, sealing cover and support column, sealing cover and feed hopper outer wall screw joint have bearing seat, the bearing seat inside interference installation has the pivot, the pivot outer wall welds and has the even material board of circular array distribution, the pivot penetrates bearing seat both ends even screw joint has the support column, support column outer wall welds and has the round array distribution of collet, the collet inside is provided with the connecting shaft, the connecting shaft outer wall pin shaft connection has the extension rod, the extension rod end welding has the impact hammer, carry out vibration delivery to material, reduce material and adhere to accumulate at feed hopper or even material board, through reducing the residual amount of material, can improve the feeding accuracy of material, and avoid residual material accumulation caking, the relative cleanness of feed hopper inner wall is guaranteed, thereby realized the purpose of preventing the blockage of feed hopper, and guaranteed the falling smoothness of material.

The utility model relates to the field of early warning devices, in particular to a stress early warning device of a concrete structure. The technical problems that an existing stress early warning device of a concrete structure can only be used for detecting the stress condition of a certain fixed position of the concrete structure generally, comprehensive analysis on the multi-directional stress condition is not convenient, and the arrangement of a burying point is single, so that the accuracy of a detection result is not enough, and the working efficiency is high are solved. Compared with a stress early warning device of a traditional concrete structure, the stress early warning device comprises a first wall body, a first detection assembly, a second detection assembly, a third detection assembly, a data processing assembly, a fourth detection assembly, a second wall body, a cross beam and a bearing column. By arranging the first detection assembly, the second detection assembly, the third detection assembly and the fourth detection assembly, the stress conditions of different parts of the concrete structure can be detected, detection is more comprehensive, detection data can be summarized and analyzed by arranging the data processing assembly, and the detection result is more accurate.

The invention relates to the technical field of medical instruments, and discloses an oncology department effusion drainage treatment device which comprises a base, a liquid storage bottle is fixedly connected into the base, a drainage tube is arranged in the liquid storage bottle, a connector is arranged at the end, away from the liquid storage bottle, of the drainage tube, and an opening and closing assembly is fixedly connected to the lower surface of the connector. And a needle head is arranged in the opening and closing assembly, a water outlet is fixedly connected to the interior of the liquid storage bottle, the outer wall of the water outlet is fixedly connected to the interior of the base, and a water valve is arranged in the water outlet. The needle head is fixed through the opening and closing plate, the design that the needle head can be replaced is adopted, medical staff do not need to carry or use various drainage devices of different specifications, operation can be completed only by rapidly replacing the needle head when needed, complexity in the operation process is reduced, preparation time can be remarkably shortened, and more precious time is won for clinical treatment.

The chip packaging table electroplating jig comprises an upper die assembly, a sealing assembly and a lower die assembly, the upper die assembly comprises a top plate and a positioning plate, the top plate is connected with the positioning plate, the positioning plate is provided with a containing groove used for containing a chip packaging table, and the bottom of the containing groove is provided with an electroplating through hole; the sealing assembly comprises a first sealing piece and a second sealing piece, the first sealing piece is arranged on the positioning plate around the placing groove, an extending sealing part is arranged on the inner wall of the electroplating through hole, and the second sealing piece is arranged on the extending sealing part; the lower die assembly is provided with an electroplating liquid spraying channel, and the electroplating liquid spraying channel communicates with the electroplating through hole. According to the electroplating jig for the chip packaging table, the upper die assembly, the sealing assembly and the lower die assembly are arranged, so that electroplating sealing protection can be carried out on the chip packaging table through the first sealing piece and the second sealing piece, and therefore the situation that other parts of the chip packaging table make contact with electroplating liquid, and consequently electroplating processing defective products are caused is avoided; and therefore, the electroplating processing quality is improved.

The utility model discloses an integrated large-span assembly type exquisite steel curtain wall structure, concretely relates to the exquisite steel curtain wall structure technical field, including framework component, fixed component, curtain wall component and second connecting component, the side of framework component is equipped with fixed component, and the side away from fixed component of framework component places curtain wall component, and the top of curtain wall component is equipped with second connecting component, and it can carry out real -time detection to the prestress that second fixed bolt exerts to second locating block surface through placing resistance voltage -transforming piece below second connecting component to the value of detection is passed to control panel, and control panel will analyze the prestress that second fixed bolt exerts to second locating block surface, when the prestress is less than certain critical value, and control panel will be in time to the feedback of construction personnel, and lets construction personnel to carry out the rush repair to it.

The utility model relates to the technical field of swimming pool cleaning robots, and discloses a swimming pool cleaning robot which comprises a body, the body walks in the first direction, a dirt suction opening is formed in the bottom of the body, and a first rolling brush and a second rolling brush are arranged below the body in the first direction at intervals. The first rolling brush and the second rolling brush are rotationally connected with the body, the dirt suction port is located between the first rolling brush and the second rolling brush, the rotating direction of the first rolling brush is opposite to that of the second rolling brush, and the rotating directions of the first rolling brush and the second rolling brush face the dirt suction port. The rotating speed of the first rolling brush is larger than that of the second rolling brush. The cleaning device has the advantages that impurities and dirt do not need to be cleaned manually, the cleaning efficiency is high, dust raising can be avoided, and the cleaning effect is improved.

The present application relates to a polishing pad pouring mold, a polishing pad processing method and a polishing pad, wherein the polishing pad pouring mold comprises two pouring pieces, the two sides and the bottom side of each pouring piece are provided with a bonding strip, the bonding strips of the two pouring pieces are connected in opposite directions, so that an inner polishing pad forming groove is formed between the two pouring pieces, the top edge of each pouring piece is provided with a first inclined surface as a pouring point, and the polishing pad processing material can slide along the pouring point to fill the inner polishing pad forming groove; the processing method comprises the following steps: preparing a polishing pad processing material; heating the polishing pad pouring mold to 50-70 DEG C; pouring the polishing pad processing material into the inner polishing pad forming groove of the polishing pad pouring mold; and vulcanizing the polishing pad processing material in the polishing pad pouring mold to form a solid. Compared with the prior art, the present application can improve the density and the uniformity of the microsphere expansion ratio of the formed polyurethane cake body, and effectively improve the yield.

The application relates to a wire bonding device for chip packaging, which comprises a machine table, a dust cover and a wire bonding mechanism arranged on the machine table, the dust cover is connected with the machine table to form a containing cavity, and the wire bonding mechanism is located in the containing cavity; a visual positioning assembly is arranged on the machine table, and the dust cover is a transparent cover which enables the visual positioning assembly to obtain images at the wire bonding mechanism. According to the application, the wire bonding mechanism is located in the containing cavity surrounded by the dust cover and the machine table, so that the chip in the wire bonding is located in the containing cavity and is isolated from the environment of the machine table, thereby avoiding that particles are adhered to the surface of the chip and causing defective products.

The application discloses a genus cryptoporus polysaccharide and application thereof, the genus cryptoporus polysaccharide is the glucan of different configuration glucose composition, and the chemical structure includes 1,4,6-connected glucose residue, 1-connected glucose residue 1,4-connected glucose residue and 1,6-connected glucose residue.The genus cryptoporus polysaccharide is used for lipopolysaccharide-induced liver injury model mice, can improve liver tissue pathological change, reduce inflammatory cell infiltration, up-regulate the expression of FoxO3, Pten, Ces1f gene, inhibit the synthesis of fat, avoid lipid accumulation to cause hepatitis, and remove active oxygen.The application provides a solid technical foundation for the research and development of the genus cryptoporus polysaccharide in the prevention and treatment of liver injury or hepatitis, and has important significance for the treatment of liver diseases such as liver injury and hepatitis.