13results 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.

The utility model provides a mortise and tenon type locking structure and a display screen, the mortise and tenon type locking structure is used for detachable connection of an installation main body and a fixed main body, and the mortise and tenon type locking structure comprises a lock shell, a locking piece, a locking piece, a locking piece and a locking piece, the lock shell is fixed on the fixed main body, and a limiting groove is formed in the lock shell; the acting piece is arranged in the lock shell and can reciprocate in the direction perpendicular to the fixed body, and a first inclined guide face and a first self-locking face connected with the first inclined guide face are arranged on the acting piece; the locking assembly comprises a guiding piece, a first elastic piece connected with the guiding piece and a spring bolt arranged at one end of the guiding piece, the guiding piece is arranged on the limiting groove in a sliding mode, and the other end of the guiding piece is provided with a second inclined guiding face and a second self-locking face which are matched with the first inclined guiding face and the first self-locking face; the display screen mounting structure solves the problem that a display screen mounting structure in the prior art cannot simultaneously meet the stable fixing requirement and the quick assembly and disassembly requirement of a large-size display screen.

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 photovoltaic support accessory is bent and is used positioning device, including bottom plate, be provided with bending assembly on the bottom plate, the bending assembly includes support column and top plate, support column sets up at the place of four corners of bottom plate, top plate sets up on support column, install and be equipped with the placing seat on the bottom plate, set up and place the groove on the placing seat, slidingly connected and equipped with the abutment plate on the placing seat, be equipped with the fixed component on the placing seat and abutment plate, the fixed component includes fixed sleeve and mobile cover, fixed sleeve fixed mounting is on the abutment plate, mobile cover slidingly connects in fixed sleeve, be equipped with the rotary rod with rotation connection on mobile cover, to solve the technical problem that the whole bending of the existing device mentioned in the background art cannot conveniently complete to the hoop in the use process.

The utility model discloses an electric vehicle awning windowing device which comprises a front blocking support and a window support, a screw transversely penetrates through a clutch wrench and a fixed part, the tail end of the screw is connected with a movable part, and the first end of the fixed part is provided with two or more sections of rotationally symmetrical fan-shaped slopes A matched with fan-shaped slopes B arranged on the inner side of the clutch wrench. First positioning teeth arranged at the second end of the fixed part are meshed with second positioning teeth arranged on the outer end face of the movable part. The fan-shaped inclined plane A radially slides relative to the fan-shaped inclined plane B to generate axial displacement by rotating the clutch wrench, so that the fixed part and the movable part are quickly separated and jointed, the opening angle of the window is easily adjusted, and the window opening angle adjusting device is simple and quick to operate, stable in structure and good in durability.

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 high-altitude construction platform unloading block supporting device, and relates to the technical field of building construction auxiliary equipment. The device comprises a first trapezoidal hollow steel wedge block, wherein a second trapezoidal hollow steel wedge block is arranged at the top end of the first trapezoidal hollow steel wedge block, and the first trapezoidal hollow steel wedge block and the second trapezoidal hollow steel wedge block form a box body; through the arrangement of the finish rolling screw rod and the high-strength bolt, when the high-strength bolt and the finish rolling screw rod are tightened and pulled oppositely, the inclined surfaces on the first trapezoidal hollow steel wedge block and the second trapezoidal hollow steel wedge block slide towards the middle, so that the purpose of adjusting the elevation is achieved, and the first trapezoidal hollow steel wedge block and the second trapezoidal hollow steel wedge block are fixed together; meanwhile, the cross-core rods are inserted into the corresponding round holes, so that the inclined falling blocks are installed on the pier columns more firmly and are meshed tightly, the instability phenomenon is avoided, safety and reliability are achieved, operation is easy, work efficiency is high, turnover utilization is convenient, and cost is saved.

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.

The invention belongs to the technical field of insulators, particularly relates to a direct-current disc-shaped suspension type glass insulator, and aims to solve the problem that an insulator fails due to the fact that an insulator glass disc is easily expanded and cracked by an internal metal core rod of the insulator under the condition of thermal expansion in the prior art. Comprising a hanging rod and a glass disc integrally of an inverted bowl-shaped structure, a ridge protrusion is reserved at the top end of the glass disc, the circumferential outer wall of the ridge protrusion is sleeved with a clamping female head, the whole clamping female head is of a cylindrical structure, a first cylindrical sinking groove is formed in the bottom end of the clamping female head, and a second cylindrical sinking groove is formed in the bottom end of the clamping female head. A protection inner clamping ring is connected to the circumferential inner wall of the first cylindrical sinking groove in a clamped mode and is made of a rubber material. According to the invention, the clamping female head made of a metal material can be prevented from being directly contacted with the glass disc made of a glass material, so that the overall failure of the insulator caused by extrusion cracking of the glass disc due to thermal expansion or cold contraction of different materials can be avoided.

The invention discloses a mechanical sealing element device for a self-lubricating reaction kettle, which comprises a mounting seat fixedly mounted at the top of the reaction kettle, a stirring motor is fixedly mounted on the mounting seat through a mounting frame, an output shaft of the stirring motor is fixedly connected with a stirring shaft, and the bottom end of the stirring shaft rotatably extends into the reaction kettle and is fixedly connected with a stirring paddle; a mechanical sealing bearing is fixedly mounted at the top of the reaction kettle; the stirring shaft is rotationally mounted on the mechanical sealing bearing in a sealing manner. The amount of lubricating oil can be automatically added and regulated according to the real-time working condition of the reaction kettle, the regulated oil supply amount is very stable, the sealing performance of sealing pieces such as mechanical sealing bearings is greatly improved, and the service life of the sealing pieces is greatly prolonged; in this way, the complex and changeable working environment of the reaction kettle can be better adapted, precise control and self-adaptive adjustment of the lubricating oil amount are achieved, the sealing performance and reliability are greatly improved, the maintenance cost is reduced, and the service life is prolonged.

The present invention discloses a method for manufacturing a package substrate and an electroplated copper column thereof, comprising the following steps: providing a copper-clad substrate; depositing a first chemical copper layer and a first electroplated copper layer on the surface of the copper-clad substrate; performing lamination, exposure, development, etching and film stripping based on the copper-clad substrate to obtain a first graphic layer; laminating a solder mask layer on the surface of the first graphic layer; opening the solder mask layer by laser drilling equipment, and depositing a second chemical copper layer on the solder mask layer; obtaining a second graphic layer by using an MSAP process; laminating a solder mask dry film layer on the solder mask layer, and forming an opening on the solder mask dry film layer by a lithography process; forming a third chemical copper layer and a third electroplated copper layer on the solder mask dry film layer; and stripping and etching to obtain an electroplated copper column. The present invention forms a copper column above the solder mask layer to replace the original solder ball, and the electroplated copper column is turned on, having better electrical properties and reliability; the roughening of the solder mask dry film layer makes the solder mask and the electroplated copper bite more tightly, thereby increasing the bonding force between the solder mask and the copper column.