6results about How to "Close bite" patented technology

The application discloses a biomimetic urchin-shaped asymmetric structure composite phase change chitosan aerogel loaded with TiO2 / rGO heterojunction and a preparation method and application thereof, adopts argon plasma etching GO, step-by-step dropwise adding tetrabutyl titanate to prepare TiO2 / rGO heterojunction; prepares a multi-level structure phase change microcapsule by an interfacial polymerization method; mixes the heterojunction with a chitosan solution, and prepares a biomimetic urchin-shaped asymmetric chitosan aerogel framework through a customized asymmetric mold and a unidirectional freezing process; fixes the phase change microcapsule by a vacuum-assisted impregnation method, and then performs in-situ coating through polydopamine to obtain the biomimetic urchin-shaped asymmetric structure composite phase change chitosan aerogel loaded with TiO2 / rGO heterojunction, the removal rate of VOCs of the biomimetic urchin-shaped asymmetric structure composite phase change chitosan aerogel loaded with TiO2 / rGO heterojunction is greater than or equal to 80% at low temperature, the phase change microcapsule dispersion rate is less than or equal to 3% after 100 cycles, the structural stability and the cycle durability are excellent, and the biomimetic urchin-shaped asymmetric structure composite phase change chitosan aerogel loaded with TiO2 / rGO heterojunction is suitable for efficient purification of VOCs in low-temperature closed scenes such as cold chain workshops and indoor environments in winter.

This invention discloses a slope reinforcement device for engineering safety, specifically relating to the technical field of slope reinforcement devices. It includes a fixing rod, a sleeve rod fixedly connected to the inner surface of the fixing rod, an injection pipe flush with its upper end fixedly connected to the inner surface of the sleeve rod, an engagement component slidably mounted on the outer surface of the sleeve rod, and a mixing component fixedly mounted at the lower end of the fixing rod. This slope reinforcement device for engineering safety, through its engagement component, can pre-fix the slope surface during half-slope reinforcement. Furthermore, the engagement component can cooperate with the mixing component during fixing, making the overall fixing operation simple and easy. Simultaneously, the mixing component can stir the slurry added during slope reinforcement and disperse air bubbles in the slurry, preventing residual air bubbles from affecting the overall slope reinforcement effect.

The utility model discloses a lathe feeding mechanism, and relates to the technical field of lathe machining. The lathe feeding mechanism comprises a base and a cleaning assembly, a feeding frame is arranged at the top of the base, the cleaning assembly is arranged on the feeding frame, the cleaning assembly comprises two sets of annular pipes and spray heads, the annular pipes are symmetrically distributed, and the spray heads are fixedly installed on the outer walls of the annular pipes. Through the arrangement of the cleaning assembly, the spray heads can effectively clean cuttings, greasy dirt and other impurities generated in the machining process, the impurities are prevented from being attached to the surfaces of the gear and the toothed plate, the subsequent machining or measuring precision is prevented from being affected, the stability of the machining precision is kept, the cuttings can be cleaned in time through synchronous movement of the spray heads, cuttings accumulation is reduced, and the machining efficiency is improved. And abrasion is reduced, meshing between the gear and the toothed plate is tighter, operation is smoother, efficiency is improved, the service life of the gear and the toothed plate is prolonged, meanwhile, time waste caused by manual cleaning is avoided, and the machining process is smoother.

The invention discloses a construction method of a foldable vertical shaft water-resisting layer. The problems that in the prior art, the construction period of a shaft occupied by water-resisting layer construction is long, the high-altitude operation risk is high, and grouting is difficult are mainly solved. The method comprises the following steps: prefabricating a cylindrical rubber membrane water spacing ring on the ground; after a water-resisting layer section shaft is excavated by 1-2 m, the water-resisting layer section shaft is lowered and radially unfolded to form a circular ring, and the circular ring is folded and fixed to the lower portion of the upper section shaft wall; continuously excavating to a complete section height and then loosening and fixing, so that the water spacing ring is vertically unfolded to be attached to the well side; a blade foot formwork and a grouting pipe are installed, reinforcing steel bar binding and sand filling treatment are conducted on a gap between the blade foot formwork and the well side, and the bottom of the water spacing ring is rolled up and embedded; and after the section of well wall concrete is poured, grouting is conducted on the gap between the water spacing ring and the stratum through the pre-buried grouting pipe. According to the method, by means of folding design and segmented construction of the water-resisting ring, the water-resisting layer mounting process and the digging and building process are conducted in parallel, and the construction period is greatly shortened; grouting is independently carried out after concrete pouring, and the filling quality is guaranteed; the construction process is safe, efficient and low in labor intensity.

The utility model discloses a belt buckle head with double-unlocking and opposite-inserting functions. The belt buckle head comprises a lock head assembly and a lock groove assembly. The lock head assembly comprises a buckle head main body, a pressing unlocking main body arranged on the buckle head main body, and a tooth belt pressing mechanism and a wearing part which are arranged at the bottom of the buckle head main body; the lock groove assembly comprises a lock groove body and a shifting unlocking body arranged at the bottom of the lock groove body. According to the belt buckle head with the double-unlocking and opposite-inserting functions, the two unlocking modes of pressing and shifting are provided, the requirements of different use scenes are met, and the flexibility is high; unlocking by pressing: the key pressing operation is stable; the reset spring ensures that the structure reset spring bolt mechanism is tightly meshed with the lock groove main body, and locking is reliable; the buckle hook mechanism is matched with the pivoting part, the double-unlocking automatic internal penetrating belt buckle head is suitable for various belts, rapid unlocking can be achieved, and the requirements of rapid unlocking, convenience and rapidness under the use condition of consumers are met.