6results about How to "Improve mechanical protection performance" patented technology

The utility model relates to a composite multifunctional rat-proof and ant-proof photovoltaic cable, and belongs to the technical field of cables. According to the technical scheme, a filling layer (3) is arranged among a photovoltaic wire core, a grounding wire core, a communication wire core and a control wire core to form a cable core; a halogen-free flame-retardant layer (14), an inner protective layer (15), a rat-and-ant-proof layer (16) and an outer protective layer (17) are sequentially arranged outside the cable core; a second insulating layer (5) is extruded outside a second conductor (4) of each communication wire core to form an insulating wire core, a plurality of insulating wire cores are twisted in pairs and then are wrapped by a sub-shielding layer on the outer surface to form a wire group wire core, a plurality of wire group wire cores are twisted to form a wire group cable, and a cabling wrapping tape, a general wrapping shielding layer and a sheath layer are sequentially arranged outside the wire group cable. According to the utility model, the capabilities of signal transmission and circuit control are increased, so that the photovoltaic cable has multiple functions, and the automation level of the circuit is improved; the cable has good halogen-free and flame-retardant performance, mechanical performance and rat-and-ant-proof performance, and the reliability and safety of long-term operation of the cable are greatly improved.

The invention discloses an antibacterial hydrogel for promoting wound healing and a preparation method thereof, and belongs to the technical field of skin dressings. The hydrogel dressing is mainly composed of carbomer, arginine, copper peroxide and water. While providing a moist healing environment for the wound, the dressing can release hydrogen peroxide and copper ions to kill bacteria at the wound, and the released arginine can promote wound healing and repair. The dressing solves the problem that traditional hydrogel dressings cannot prevent and treat wound infection, and does not contain antibiotics, silver ions and hormone drugs, has little side effects, and is safer to use. The dressing can be applied to the treatment of acute and chronic wounds, has the functions of preventing infection, assisting in clearing infection and promoting wound healing, and has high clinical application value.

This invention provides a fiber optic anti-loss coupling device and a method for multi-hole deployment in coal mines, belonging to the field of coal mine safety monitoring technology. Based on a PVC pipe with grooved outer wall and external and internal threads at both ends, and a grooved anti-bending guide assembly, this invention provides a fiber optic deployment device and method for drilling holes. It is suitable for the efficient and reliable deployment of distributed acoustic sensing (DAS) microseismic monitoring optical cables in coal mines, especially addressing the needs for improved bending resistance, tensile strength, and coupling quality of bottom-hole optical fibers under cement slurry sealing conditions. By improving the PVC pipe structure, guide structure, and sealing / sealing process, low-loss and high-coupling-efficiency fiber optic deployment in mines is achieved.

The application provides a battery fireproof partition plate and a preparation method thereof, a battery module and a new energy vehicle. The battery fireproof partition plate comprises a high-temperature heat-resistant insulating sheet, and the high-temperature heat-resistant insulating sheet is arranged on the outer side of a modified polyurethane fireproof core plate. The modified polyurethane fireproof core plate comprises component A and component B. Component A comprises 30-50 parts of medium-functionality polyether polyol, 1-5 parts of a catalyst, 1-10 parts of an organic phosphate, 10-25 parts of melamine phosphate, 1-10 parts of a low-functionality chain extender, 1-10 parts of pentaerythritol, 1-10 parts of aluminum hydroxide, 1-10 parts of hollow glass microbeads and 1-5 parts of a smoke suppressant. Component B comprises 20-40 parts of an isocyanate mixture. The battery fireproof partition plate not only has a good mechanical protection effect, but also improves the fireproof and heat insulation performance of the battery fireproof partition plate, that is, the fireproof and heat insulation time of the battery fireproof partition plate is 300 s at a temperature above 1300 DEG C, thereby effectively preventing the flame energy from spreading to the surrounding.

The invention discloses antibacterial hydrogel for promoting wound healing and a preparation method thereof, and belongs to the technical field of skin dressing. The hydrogel dressing is mainly composed of carbomer, arginine, copper peroxide and water, the dressing can release hydrogen peroxide and copper ions to kill bacteria at a wound while giving a wet healing environment to the wound, and the released arginine can promote the wound and healing repair. The dressing solves the problem that traditional hydrogel dressings cannot prevent and treat wound infection, does not contain antibiotics, silver ions and hormone drugs, and is small in side effect and safer to use. The dressing can be applied to treatment of acute and chronic wounds, has the functions of preventing infection, assisting in infection removal and promoting wound healing, and has high clinical application value.

The utility model provides a kind of looped net cabinet with operating hole cover, belong to looped net cabinet field, it is constituted by cable work store, cable chamber door, mechanism chamber, switch chamber, control box mechanism, mechanism chamber panel, display mechanism and operating hole cover mechanism, the problem that short life, poor reliability, frequent maintenance replacement is caused by the aging, embrittlement, mechanical strength deficiency of traditional plastic operating hole cover in this scheme is solved completely, ensure that cover always maintains structural integrity, function reliable, open and close smoothly, seal well in the entire looped net cabinet life cycle, significantly improve the tolerance of cover in harsh natural environment, chemical environment and mechanical environment, improve the mechanical protection capability, fireproof performance of cover itself, indirectly guarantee the safety of equipment and operating personnel in cabinet, torsional spring and pin shaft are made of high-quality stainless steel material, can fundamentally overcome the defects of plastic aging, embrittlement and chemical corrosion.