7results about How to "Guaranteed tight connection" patented technology

The application relates to the technical field of unmanned aerial vehicle components, in particular to a modular wiring structure suitable for unmanned aerial vehicles, which comprises an electronic speed regulator body, an output line module and an input line module; the electronic speed regulator body is provided with an output wiring post; the output line module comprises an output module and an output wiring terminal, the output wiring terminal is sequentially connected to the output module and the output wiring post; an output taper shaft fastener is arranged at the connection position of the output wiring terminal and the output wiring post, the output wiring terminal is arranged through and fastened on the output wiring post; an output anti-loosening elastic pad is arranged between the output wiring terminal and the taper shaft fastener; the output wiring post is sleeved with an output wiring sealing piece, and the output wiring sealing piece abuts against the electronic speed regulator body and the output module. The various connecting pieces are matched with each other, the structural strength, the impact resistance and the waterproof performance of the wiring structure can be improved, the reliability of the wiring structure is improved, and the wiring structure has better environmental adaptability and use safety.

The application discloses a drainage tunnel maintenance stage people and vehicle anti-skid device and a mounting method, and relates to the technical field of water conservancy projects. The device comprises at least one anti-skid pad body and a side edge anchoring mechanism. The anti-skid pad body comprises an anti-skid wear-resistant layer, a buffer bearing layer and an anchoring and adhering layer. The lower surface of the anchoring and adhering layer is provided with an anchoring structure. The upper surface of the anti-skid wear-resistant layer is provided with anti-skid textures and a plurality of drainage grooves. The anti-skid textures are used for enhancing the friction coefficient of the upper surface of the anti-skid wear-resistant layer and can guide accumulated water to the drainage grooves. One end of the side edge anchoring mechanism is in abutment with the side wall of the drainage tunnel, and the other end is used for being connected with the side edge of the anti-skid pad body, so as to limit the displacement of the anti-skid pad body in the width direction of the bottom plate of the drainage tunnel and provide the anti-skid pad body with a compression force perpendicular to the bottom plate of the drainage tunnel. The application can realize the technical effects of multiple goals, such as large longitudinal slope anti-skid, efficient installation, environmental protection and pollution-free, and reusability.

The utility model provides a kind of drinking cup, it is specifically related to water cup technical field.The drinking cup includes cup body, cup cover and straw;The cup cover includes top cover and bottom cover;The top cover is provided with dust cover, and the dust cover is hinged with top cover by connecting band;The top cover and bottom cover are hinged;The bottom cover is threadedly connected with the opening of cup body;The bottom cover bottom is detachably provided with filter screen;The straw penetrates the middle of filter screen inner cavity and is inserted with the position corresponding to the bottom of suction nozzle at the bottom of top cover.The utility model is provided with double-layer cup cover, solves the cumbersome, inconvenience of user needing to remove cup cover whole or filter screen when traditional water cup holds water or increases and puts brewing material in filter screen.

This utility model belongs to the field of sleeve sealing technology, and provides a sleeve structure for sealing concrete water tanks, including a sleeve with a water-stopping wing ring; the sleeve is coaxially fitted inside the perforation in the tank wall; a through-wall pipe is coaxially fitted inside the sleeve, and an annular cavity is formed between the through-wall pipe and the sleeve. Within the annular cavity, along the direction from the inner to the outer side of the tank wall, a limiting ring, an asbestos cement ring, an oil-impregnated hemp ring, another asbestos cement ring, and a sealant ring are sequentially arranged. This sleeve structure, through the design of a multi-layer sealing material composed of non-toxic sealant, asbestos cement, and oil-impregnated hemp, and a composite waterproof membrane formed by a three-layer anti-corrosion layer and a waterproof membrane, significantly improves waterproof performance. The use of stainless steel tube bundles and steel ferrules ensures a tight connection between the various layers of materials, preventing gaps from forming between the tank wall and the through-wall pipe due to thermal expansion and contraction, thereby preventing water leakage.

The application discloses a solar charging panel for power bank, which comprises a solar panel and a voltage stabilizer, the back of the solar panel is fixedly connected with a cloth piece, the voltage stabilizer is connected to the cloth piece, a wire is connected to the voltage stabilizer, one end of the wire is connected with a USB connector, the solar panel, the voltage stabilizer, the wire and the USB connector are electrically connected, the USB connector comprises a shell, a docking tongue is connected to the inside of the shell, a pressing piece is embedded between the docking tongue and the shell, a bolt is screw-mounted on the upper part of the pressing piece, the lower end of the bolt is in movable contact with the shell, one end of the wire is fixedly connected with the shell, and the wire is electrically connected with the docking tongue, the shell is inserted on a target power bank, the bolt is tightened, the bolt acts on the pressing piece upwards, the pressing piece presses the docking tongue, the docking tongue is pressed on the USB docking tongue of the power bank, the USB connector is fixed with the target power bank, and the stability between the device and the target power bank is improved.