18results about How to "Reduce direct damage" patented technology

The utility model relates to liquid crystal display screen protection device technical field discloses a high accuracy liquid crystal display screen self -adaptation protection frame, including protection frame, the inside upper and lower of protection frame is provided with protection mechanism, protection mechanism is used for promoting impact energy absorption, the outside upper and lower of protection frame is provided with fastening mechanism, fastening mechanism is used for improving the protection ability of equipment, the inside front side of protection frame is provided with display control mechanism, the front side of protection mechanism is provided with heat dissipation mechanism, heat dissipation mechanism is used for improving the temperature average of equipment, protection mechanism includes two buffer board, the far side of two buffer board is all fixedly connected in the inside upper and lower side of protection frame. In the utility model, the damage risk of impact to liquid crystal screen is effectively reduced, prolongs the service life of display screen, provides more reliable protection for the equipment under complex use environment, guarantees display screen stable work.

The application discloses an antioxidant composite ceramic aerogel and a preparation method thereof, and belongs to the technical field of composite ceramic aerogels.The main body of the antioxidant composite ceramic aerogel is a silicon nitride aerogel, the nanostructure of the silicon nitride aerogel is one of one-dimensional silicon nitride nanowires and two-dimensional silicon nitride nanobands or a combination of the two nanostructures, and a mullite coating and a copper-nickel metal coating are sequentially coated on the nanostructure of the silicon nitride aerogel from inside to outside.The application can solve the technical problem that the prior art cannot prepare silicon nitride ceramic aerogels which can stably serve in a high-temperature oxygen environment at low cost and in batches.

The utility model provides an anti-collision hydraulic oil cylinder which comprises a hydraulic oil cylinder body, protective clamping blocks are arranged at the upper end and the lower end of the hydraulic oil cylinder body respectively, the protective clamping blocks are connected with the hydraulic oil cylinder body in a clamped and embedded mode through fixing bolts arranged in the middles, a connecting groove is formed in the inner side of the protective clamping block at the upper end, and a connecting pipe is installed in the connecting groove in an embedded mode. And a sealing cover is installed above the hydraulic oil cylinder in a nested mode, the connecting pipe and the sealing cover are arranged in a through connection mode, a telescopic rod is installed on the outer side of the protective clamping block in an embedded mode, and the telescopic rod and the connecting pipe are connected in a through mode. When the periphery of the hydraulic oil cylinder is collided, the protective sleeve extrudes and buffers the buffering bag, oil in the buffering bag is extruded back into the hydraulic oil cylinder through the telescopic rod and the connecting pipe at the moment, and then the oil extruded back into the buffering bag can push the piston push block to move in the hydraulic oil cylinder, so that the extending hydraulic rod retracts into the hydraulic oil cylinder; therefore, the hydraulic rod is prevented from being deformed and damaged due to external force collision.

The utility model relates to the technical field of PVC packaging boxes, and discloses an inner support anti-collision PVC packaging box which comprises an outer box layer, the inner wall of the outer box layer is fixedly connected with a connecting frame, the inner wall of the connecting frame is fixedly connected with an inner box layer, one side of the outer wall of the outer box layer is fixedly connected with a first connecting piece, the upper surface of the outer box layer is fixedly connected with a second connecting piece, and the outer box layer is fixedly connected with an inner box layer. An anti-collision assembly is arranged on the inner wall of the outer box layer and comprises an elastic block, the outer wall of the elastic block is fixedly connected to the inner wall of the outer box layer, a supporting rod is fixedly connected to the outer wall of the elastic block, a connecting strip is fixedly connected to the upper surface of the elastic block, and the upper surface of the connecting strip is fixedly connected to the lower surface of the connecting frame. According to the PVC packaging box, the impact force of objects in the PVC packaging box is effectively reduced, the safety of the objects in the packaging box is guaranteed, meanwhile, closed packaging of the PVC packaging box is achieved, and the stability of the packaging box in the using process is guaranteed.

The utility model relates to the technical field of shot blasting heads, in particular to a shot blasting head special for a hydraulic casting oil duct and capable of blasting shots in multiple directions. The shot blasting head mainly aims at solving the problems that a common shot blasting head mostly adopts a vertical mode for shot blasting, is difficult to use in a bent area in a hydraulic casting oil duct, increases a cleaning blind area in the shot blasting process, directly impacts the inner wall of the oil duct, increases damage to the oil duct, reduces the durable life and reduces the working efficiency. According to the technical scheme, the shot blasting head comprises a connecting piece, a guide assembly is arranged at the bottom of the connecting piece, a shot blasting pipe is arranged at the bottom of the guide assembly, and an inner channel of the shot blasting pipe is arranged in an L shape. The multi-directional shot blasting device realizes multi-directional shot blasting, improves the practicability of a complex casting oil duct, is beneficial to disassembly and replacement, and reduces the maintenance and replacement cost.

The utility model provides an anti-impact electric cylinder, which belongs to the technical field of engineering machinery and comprises a lead screw pair mounted in an outer pipe, a lead screw in the lead screw pair is driven by a servo motor to rotate, the lead screw drives a nut to do reciprocating rectilinear motion along the surface of the lead screw when rotating, a connecting pipe is fixed at the upper end of the nut, and a push rod is sleeved at the upper end of the lead screw. The push rod is matched with an extension block at the upper end of the connecting pipe in a hooking and pulling mode, the surface of the connecting pipe is sleeved with a compression spring, the upper end of the compression spring makes contact with the lower end face of the push rod, and when the nut pushes the push rod to do forward linear movement through the compression spring, impact energy can be absorbed and converted into elastic potential energy; direct damage of impact to core components such as a lead screw pair and a gear pair is effectively reduced, component failure caused by impact is avoided, and the service life of the electric cylinder under the high-impact working condition is remarkably prolonged.

This invention discloses a battery electrode and a method for preparing a battery cell, a photovoltaic cell, a tandem cell, and a photovoltaic module, belonging to the field of solar cell technology. The battery electrode of this invention is located on the light-receiving surface and the back-light-receiving surface of the battery cell, including multiple main grids extending longitudinally and multiple fine grids extending laterally. The main grids and fine grids intersect to form a grid and are interconnected. A groove structure matching the fine grids is provided on the light-receiving surface or both sides of the battery cell. The fine grids are embedded inside the grooves, and the fine grids directly contact the boron-doped layer of the battery cell on three sides without passivation film obstruction. This invention can significantly reduce contact resistance, improve light blocking, and facilitate efficient photoelectric conversion. This electrode structure can be superimposed with any battery structure, such as xBC, HJT, perovskite tandem cells, etc.

The application provides a locking structure for a shared bicycle, and relates to the technical field of bicycle locks. The locking structure comprises a main shaft and a hub wheel arranged on the main shaft. A locking piece is arranged between the hub wheel and the main shaft, and the locking piece is located in the interior of the hub wheel. The locking piece comprises a lock disc which is mounted in the hub wheel through bolts. A plurality of insertion holes are formed in the lock disc. A fixed plate is fixedly mounted on the main shaft. A mounting seat is mounted on one side of the fixed plate close to the lock disc through bolts. A push-pull electromagnetic lock is mounted on the mounting seat. A lock rod of the push-pull electromagnetic lock is inserted into one of the insertion holes. The locking piece is arranged in the hub wheel, and the locking piece is protected by the hub wheel. The direct damage of external environmental factors to the locking piece can be effectively reduced. The failure rate of the locking piece caused by environmental factors is reduced. The service life and reliability of the shared bicycle are improved.

This invention provides a self-healing grouting material, its preparation method, and its application. By weight, the raw materials of the self-healing grouting material include the following components: 100 parts of cementitious material; 40-80 parts of water; 5-40 parts of polypropylene fiber-diatomite composite microbial carrier; 0-40 parts of mineral admixtures; and 0-5 parts of chemical additives. The polypropylene fiber-diatomite composite microbial carrier comprises a polypropylene fiber core layer and a diatomite gel shell layer. The diatomite gel shell layer is a gel network structure with embedded porous diatomite particles loaded with microorganisms. This invention solves the problem of insufficient timeliness of water-blocking performance in rock strata grouting in existing technologies, achieving long-term, adaptive sealing of seepage channels in rock strata fissures, and effectively enhancing the durable water-blocking capacity and overall stability of modified rock strata.

The utility model relates to the technical field of wires and cables, in particular to a wire and cable with an anti-aging structure. The cable comprises filling cotton and a cable, the cable is inserted in the filling cotton in a penetrating manner, the surface of the filling cotton is sleeved with a fixing sleeve, cotton of the fixing sleeve is fixedly connected with a rubber sleeve, the surface of the rubber sleeve is coated with an anti-corrosion coating, the anti-corrosion coating is an epoxy coal pitch coating, the surface of the anti-corrosion coating is sleeved with a buffer layer, and the buffer layer is coated with an anti-corrosion layer. The buffer layer is a rubber layer, a plurality of rubber strips are fixedly connected to the inner wall of the buffer layer, and the rubber strips are evenly distributed on the inner wall of the buffer layer in a circumferential array mode. The problems that in the actual use process, wires and cables are affected by various factors such as moisture in the environment, corrosive substances, external force and temperature changes, and the factors can accelerate aging of the wires and cables, reduce the performance and service life of the wires and cables and even cause safety accidents are solved.

The application provides a sealant and a preparation method thereof, and relates to the technical field of sealants. The sealant comprises A component and B component. The A component comprises the following raw materials: bio-based polyaspartic ester resin, modified nano zinc oxide, tea polyphenol microcapsule, filler, dispersant and defoaming agent. The B component comprises the following raw materials: bio-based isocyanate prepolymer, HDI trimer, catalyst and light stabilizer. The sealant provided by the application has the comprehensive performances of weather resistance, anti-yellowing, mechanical balance, environmental protection, safety, antibiosis and durability, and is suitable for the sealing of building gaps in the environment exposed to light and moisture for a long time.

The utility model discloses a stationary fixture for unmanned aerial vehicle four-axis connecting piece machining, and relates to the technical field of stationary fixtures, the stationary fixture comprises a machining platform, an annular groove is formed in the machining platform, a limiting ring is rotatably installed in the annular groove formed in the machining platform, and a rotating table is fixedly installed on the limiting ring; a second convex sliding groove is formed in the rotating table, and a sliding table is installed in the second convex sliding groove formed in the rotating table in a limiting and sliding mode. According to the four-axis connecting piece clamping device, through cooperation of the adjusting screw rod and the second convex sliding groove, the sliding table can transversely and accurately move along the rotating table, the four-axis connecting pieces with different lengths can be rapidly matched, and the clamping module does not need to be manually replaced; the remodeling time in small-batch multi-variety production is remarkably shortened, the equipment utilization rate is increased, the rotating table is rotationally connected with the annular groove of the machining platform through the limiting ring, multi-angle locking can be achieved through the cooperation of the rotating table and the positioning screw, the multi-directional machining requirement is met, the repeated clamping frequency of workpieces is reduced, and the machining process is optimized.

The utility model discloses an impact-resistant strong anti-seismic signboard which comprises a signboard body, a supporting rod is arranged on the outer side of the signboard body, the supporting rod is connected with an elastic buffering assembly through a sliding ring, the upper end of the elastic buffering assembly is connected with a lateral buffering assembly, and a damping buffering assembly is arranged in the middle of the elastic buffering assembly in a sleeved mode. The elastic buffering assembly comprises an outer side arc-shaped buffering plate and an inner side arc-shaped buffering plate. According to the signboard, the outer side arc-shaped buffering plate and the inner side arc-shaped buffering plate are adopted, through double-layer protection, when the signboard is impacted, the buffering effect can be achieved, direct damage of external force to the signboard is reduced, surface abrasion, color fading or deformation of the signboard is prevented, and the service life of the signboard is prolonged; and pressure caused by lateral collision can be further buffered, damage to the signboard due to collision can be effectively reduced, and the signboard is further protected.

The utility model relates to the technical field of cosmetics, in particular to a reusable and multilayer stacked false eyelash, which comprises eyelashes, double faced adhesive tape and a protective film, one end of each eyelash is provided with an adhesive tape, the double faced adhesive tape is connected with the eyelashes, the protective film is attached to the surface of an adhesive layer of the double faced adhesive tape, and the eyelashes can be stacked and have different colors. The double-faced adhesive tape and the protective film are made of transparent and flexible materials, the double-faced adhesive tape is low in irritation, capable of being repeatedly pasted, moderate in viscidity and capable of being detached and repeatedly used, the protective film forms a blocking area for blocking glue, metal wires are arranged in the adhesive tape, and the hamburger stacking type self-made eyelashes are adopted. The hamburger stacking type structure comprises eyelashes, double-faced adhesive tape, protective film, eyelashes, double-faced adhesive tape, protective film, eyelashes, double-faced adhesive tape and protective film, the styles and colors of the eyelashes on each layer can be different, personalized design is achieved, and the eyelashes and the adhesive tape are sticky when sprayed water and are not sticky when being contacted with water.

The application discloses a high-temperature oxidation-resistant ceramic aerogel and a preparation method thereof, and belongs to the technical field of ceramic aerogels.The main body of the high-temperature oxidation-resistant ceramic aerogel is a silicon nitride aerogel, the nanostructure of the silicon nitride aerogel is one of one-dimensional silicon nitride nanowires and two-dimensional silicon nitride nanobands or a combination of the two nanostructures, and the nanostructure of the silicon nitride aerogel is sequentially coated with a silicon carbide precursor coating and a zirconium carbide precursor coating from inside to outside.The application can solve the defects that traditional ceramic aerogels are prone to oxidation failure under superhigh temperature and are difficult to be prepared at low cost and in large scale.

This utility model discloses a down jacket pocket flap sewing template, including a first template and a second template, which are rotatably connected. The first and second templates have corresponding sewing holes. The first template has a width adjustment device and a detachable pressure strip, while the second template has an anti-static device. The width adjustment device includes a pressure plate, a connecting column, a slider, a locking mechanism, and a limiting block. The pressure plate is fixedly connected to the slider and has a gap with the first template. The pressure plate has a locking mechanism, and the limiting block is movably connected to the connecting column and the pressure plate, respectively. The anti-static device includes a brush, a copper foil, a grounding terminal, a tongue, and a grounding wire. The brush is in contact with the second template and fixedly connected to the copper foil. The tongue is fixedly connected to the copper foil and the grounding terminal, respectively, and the grounding wire is fixedly connected to the grounding terminal. This utility model solves the problems of width adjustability, ease of pressure strip replacement, and template safety in traditional down jacket pocket flap sewing templates.

The utility model discloses a kind of FPC collection modules of power battery, including multiple electrically conductive rows and FPC line rows of being connected with being arranged in shell frame, FPC line row includes the collection component being connected with multiple electrically conductive rows at its front, and by FPC line row one end folding forming reverse folding portion located FPC line row back side, and FPC connector is set on the reverse folding portion, reverse folding portion and FPC connector are installed and accommodated in the settlement groove of shell frame setting, by reverse folding portion design makes FPC connector transfer from battery module top to settlement groove, release the space of FPC line row just above and battery module top, solve the insufficient problem of installation flatness caused by the connector protruding of traditional single panel FPC, meet the high requirement of battery module to installation flatness, improve space utilization, help the miniaturization and integration design of battery module, improve the structure stability and overall reliability of FPC line row installation on power battery.

The utility model relates to the technical field of automobile auxiliary appliance, especially a parking wedge with high friction force, including wedge body, its characterized by: the upper surface of wedge body constructs and is used for increasing the texture structure of friction force, the wedge body is prepared from polyethylene, the bottom of wedge body is equipped with friction iron sheet structure, the side of wedge body is provided with reinforcing rib, reinforcing rib stretches along the length direction of wedge body, the parking wedge of the application adopts polyethylene wedge body, and is light and weather resistant, the upper surface diamond texture increases tire friction force, the bottom friction iron sheet sets up rectangular array three -dimensional convex, and the ground anchoring is strengthened by bolt fixing, the spring array between iron sheet and wedge body buffers impact, and the adaptive pressure regulating is carried out, the side reinforcing rib optimizes stress, and the compression resistance and deformation resistance are realized, and each structure cooperates to realize efficient antiskid and stable support, and the complex environment is adapted.