11results about How to "From erosion" patented technology

The invention belongs to the technical field of concrete, and particularly relates to basalt fiber composite modified sprayed concrete and a preparation method thereof. The basalt fiber composite modified sprayed concrete is prepared from the following raw materials in parts by weight: 420 to 470 parts of cement, 200 to 220 parts of water, 830 to 860 parts of sand, 840 to 880 parts of gravel, 40 to 60 parts of admixture, 15 to 30 parts of modified basalt fiber, 2 to 6 parts of polycarboxylate superplasticizer and 5 to 12 parts of alkali-free accelerator. The modified basalt fiber is added into the sprayed concrete to serve as a reinforcing phase, the strength and impact toughness of the concrete can be improved, and the later strength of the concrete is guaranteed. The cerium trifluoride modified fly ash is added into the admixture, so that the rebound rate can be reduced, and the early strength of the concrete is improved.

The utility model relates to the technical field of freight unmanned aerial vehicles, and discloses an urban unmanned aerial vehicle logistics distribution platform which comprises an outer shell, a rainproof assembly is arranged on the outer wall of the outer shell, and a photovoltaic assembly is arranged at the top of the outer shell. The rainproof assembly comprises a mounting frame, and the outer wall of the mounting frame is rotationally connected with a winding roller. The urban unmanned aerial vehicle logistics distribution platform is provided with the mounting frame, the winding roller, the first hook-and-loop fastener, the first hook-and-loop fastener, the waterproof canvas, the second hook-and-loop fastener, the fixing frame and the second hook-and-loop fastener, in rainy days, the waterproof canvas can be quickly unfolded, the waterproof canvas is connected with the second hook-and-loop fastener on the fixing frame through the second hook-and-loop fastener, mounting and dismounting are convenient, and use is convenient. The waterproof canvas is inclined after being unfolded, rainwater accumulation is effectively avoided, rain can be effectively prevented, articles in the station are protected against rainwater erosion, and the risk that the articles are affected with damp and damaged is reduced.

This invention belongs to the field of micro-coating protection and discloses an organosilicon aerosol coating for waterproofing precision instruments and its preparation method. The organosilicon aerosol coating comprises, by weight, 4-6 parts of fluorinated organosilicon, 2-3 parts of organosilicon-acrylate resin, 30-40 parts of a first solvent, 20-30 parts of a second solvent, 1-1.5 parts of a release agent, 0.5-1 parts of a leveling agent, and a certain amount of propellant. This invention uses a first solvent and a second solvent with different volatility properties to improve the self-leveling and film-forming quality of the microfilm after spraying, reducing surface micropore defects caused by excessive evaporation and forming a good waterproof layer. Through the synergistic effect of fluorinated organosilicon and organosilicon-acrylate resin as film-forming materials, the waterproof coating formed with the release agent and leveling agent possesses both long-lasting waterproofing and peelability. When used for the protection of precision instruments, the coating can be peeled off after a certain protection period without leaving residual pollution on the instrument surface.

The present application provides a sunlight-resistant colored electrochemical energy storage fabric based on recycled cotton powder and a preparation method thereof, belonging to the technical fields of flexible electronic textiles and electrochemical energy storage. The preparation method first deposits a TiO2 film on the recycled cotton powder by ALD technology, and then performs mild hydrothermal synthesis to obtain a TMOs@TiO2@CP composite powder with a three-layer nested structure. Among them, the TiO2 film protects the internal recycled cotton powder from erosion during the hydrothermal reaction and is tightly combined with the TMOs functional layer through Ti-O-TM covalent bonds, improving the structural stability and interfacial bonding force of the composite powder. The present application uses the inherent color characteristics of different transition metal oxides to replace traditional black carbon-based materials, endowing the energy storage fabric with rich color choices and meeting the aesthetic and design requirements of high-end textiles. The process route of the present application avoids the damage to the inherent flexibility and structure of cotton fabrics by drastic means such as high-temperature carbonization.

The utility model relates to the technical field of RFID tags, in particular to an RFID tag for underground pipeline inspection, which comprises a glass protective shell, the top of the glass protective shell is provided with an opening, and a boss is fixedly arranged in the glass protective shell. When the RFID tag for underground pipeline inspection is used, the RFID tag body can be packaged in the glass protective shell through the combined effect of the glass protective shell and the glass cover plate, the glass protective shell has the anti-corrosion characteristic through the arranged glass protective shell material, the internal RFID tag body can be prevented from being corroded, and the service life of the RFID tag is prolonged. Meanwhile, through the arrangement of a placement cylinder, a drying agent absorbs water vapor in the placement cylinder to be matched with sealing of a glass protective shell and a glass cover plate, a dry environment is provided for the RFID tag body, and when the RFID tag body needs to be replaced in the future, the RFID tag body can be taken out only by rotating a screwing plate and detaching the glass cover plate; the practicability of the device is improved through the design.

This utility model relates to the field of surface treatment technology for cast iron parts, and discloses a surface treatment device for cast iron parts, including a base. Two support rods are fixedly connected to the top of the base. A centering mechanism is provided on the outer adjacent side of the two support rods. Cleaning mechanisms are provided on both outer sides of the two support rods. A grinding mechanism is provided on the top of the base. A placement plate is fixedly connected to the top of the centering mechanism. The centering mechanism includes a sliding plate, which is slidably connected to the outer adjacent side of the two support rods. Sliding grooves are formed inside the two support rods. In this utility model, the support plate, support block, and rotating rod are linked by a telescopic rod, enabling the two centering frames to accurately clamp the cast iron parts, improving centering accuracy and stability, and effectively preventing the cast iron parts from shifting during grinding. The sliding rod and extension rod in the extension assembly can be flexibly adjusted according to the height of the cast iron parts.

This utility model discloses a biomimetic noise reduction panel, comprising a sound-absorbing layer with a porous micro-nano structure disposed in the middle, and damping layers disposed on both sides of the sound-absorbing layer. Both damping layers are disposed on a mesh-like support plate. The edges of the support plate are encapsulated by four connecting blocks to form a square plate. The opposing connecting blocks on both sides form a set of connecting units. Two connecting blocks in a connecting unit are spliced ​​together by plug-in components to expand the size of the biomimetic noise reduction panel. The plug-in components are detachable. The sound-absorbing layer contains a porous micro-nano structure, structurally mimicking the scales of a lepidopteran insect wing. In terms of noise reduction performance, this noise reduction panel can stably cover a wide frequency range of 20Hz to 5kHz, with a noise reduction rate between 20.1% and 39.8%. Compared with the average noise reduction rate of 14.6% of traditional materials, its performance is improved by more than 50%, especially achieving a breakthrough in overcoming the industry challenge of low-frequency noise blocking.

The application relates to a photovoltaic frame, which comprises a first frame, a second frame, and a corner code. The first frame comprises a first corner code mounting part. The second frame comprises a second corner code mounting part. The corner code comprises a first mounting part, a second mounting part, and a first photovoltaic fixing part. The inner wall of the first corner code mounting part is entirely covered with a first glue layer. The second mounting part comprises a buckle sleeve, a connecting column, and a second photovoltaic fixing part. The inner wall of the second corner code mounting part is entirely covered with a second glue layer. The connecting column is inserted into the second corner code mounting part. The first photovoltaic fixing part comprises a first connecting surface. The plane of the first connecting surface and the first direction form a first included angle. The second photovoltaic fixing part comprises a second connecting surface. The plane of the second connecting surface and the first direction form a second included angle. The second mounting part is connected with the first mounting part to make the first connecting surface and the second connecting surface fit together. Water vapor can be prevented from entering the inside of the photovoltaic frame, and the waterproof effect is improved.

This application relates to the technical field of marine equipment, and in particular to a marine anchor chain cleaning device, which includes a cleaning tank installed at the anchor winch location and a cleaning device installed inside the cleaning tank. The cleaning tank is filled with a cleaning fluid for cleaning anchor chains. The cleaning device includes a brush assembly installed inside the cleaning tank. The anchor chain to be cleaned passes through the brush assembly and is immersed in the cleaning fluid in the cleaning tank. This application has the effect of improving the ability to clean anchor chains.

This utility model discloses a double-locking anti-loosening power connector, including a plug, one end of which is connected to a connector base. Both sides of the plug are provided with elastic latches. A socket panel is fixedly connected to one side of the connector base. The socket panel has a semi-circular protrusion, and a protruding ring is fixedly connected to the socket panel. A locking groove is formed between the connector base and the protruding ring. The application of springs in this utility model not only provides necessary cushioning for the electrodes but also ensures tight contact between the electrodes and their corresponding interfaces. When the connector is subjected to external impact or vibration, the springs can effectively absorb these external forces, preventing electrode damage or displacement caused by direct impact, greatly improving the durability and stability of the device.

The utility model relates to the technical field of hair dryers, and particularly provides a multifunctional high-speed hair dryer which comprises a high-speed hair dryer body. A dismounting and mounting frame is mounted at an air inlet in the rear side of the high-speed blower body, and a fog dispersal cylinder communicated with the dismounting and mounting frame is mounted on the rear side of the dismounting and mounting frame; two mounting blocks are arranged on the peripheral side of an air inlet in the rear side of the high-speed blower body, and a dismounting assembly is arranged between the mounting blocks and the dismounting frame; and a water mist prevention assembly is arranged in the mist dissipation barrel. Through the combined design of a circular filter screen, a spiral conveying part and a cylindrical filter screen in the water mist prevention assembly, water mist in the air can be effectively separated through the dual effects of physical interception and centrifugal separation, compared with a traditional simple filter screen structure, the water vapor filtering capacity is improved, the situation that the water mist enters the high-speed blower body is reduced, and the service life of the high-speed blower body is prolonged. Key components such as a motor and a circuit board are protected from being eroded by water vapor, faults such as short circuit, electric leakage and oxidation rusting are reduced, and the service life of the blower is prolonged.