6results about How to "Functional balance" patented technology

The utility model provides a portable tool of painting in high place relates to the field of painting, this portable tool of painting in high place, this portable tool of painting in high place, including telescopic handle, electric telescopic link, and the rotation mechanism rotation is connected between electric telescopic link and telescopic link, and the fixed connection of electric telescopic link output end has the shell, the fixed connection of storage tank is established in the shell upper end, and the discharge port is established between the shell and storage tank, and the fixed connection of discharge pipe has the discharge port, and the rotation is connected in the shell and has the roller shaft, and the outer surface of roller shaft is sleeved with the rolling brush, this portable tool of painting in high place, solved the roller brush when painting with the roller brush short, when the equipment painting is not good to brush the top, need the operating personnel to stand the scaffold or lift truck of setting up and carry out the painting operation, and need to dip the paint frequently, and the painting efficiency is low, and the quality can not guarantee the problem.

The invention relates to a three-level topology positive and negative bus voltage balancing circuit and an inverter. The circuit comprises a bus capacitor Cp, a bus capacitor Cn, an output filter capacitor Cf, a capacitor C1, a capacitor C2, a switch tube S1, a switch tube S2, a switch tube S3, a switch tube S4, a diode D1, a diode D2, a diode D3, a diode D4, an inductor L1 and an inductor L2; the gate of the switch tube S1 is used to access a first pulse signal, the gate of the switch tube S2 is used to access a second pulse signal, the gate of the switch tube S3 is used to access a third pulse signal, and the gate of the switch tube S4 is used to access a fourth pulse signal; the invention utilizes an LC oscillation circuit in combination with a unidirectional conduction function of a diode to achieve lossless transfer of positive and negative bus electric energy; when the bus capacitor Cp voltage charges the capacitor C1, the electric energy in the charged capacitor C1 is transferred to the bus capacitor Cn; when the bus capacitor Cn charges the capacitor C2, the electric energy in the capacitor C2 is transferred to the bus capacitor Cp, thereby achieving balance of positive and negative bus voltages.

The invention discloses a production process of a protective film for electronic equipment. The production process of the protective film for the electronic equipment comprises the following steps: S1, pretreatment and functional coating of a base film; s2, performing multifunctional precision coating; s3, cutting and packaging in an ultra-clean environment; the electronic equipment protective film comprises a release film, an electrostatic adsorption layer, a base film, an automatic repair layer and a surface coating functional layer which are sequentially stacked, the step S2 further comprises the following steps that S21, the coating structure is subjected to one-time extrusion molding from top to bottom; s22, a curing process is conducted, specifically, a UV-LED excimer lamp two-stage curing system is adopted, and after coating is completed, a product passes through a UV-LED curing section firstly; and then deep curing is carried out through a 172nm excimer lamp. According to the production process of the protective film for the electronic equipment, high-purity aromatic TPU with the thickness of 0.2 mm is adopted, and excellent anti-falling and anti-impact basic protection is provided for a screen due to the inherent high toughness, elasticity and impact resistance of the high-purity aromatic TPU.

This utility model relates to the technical field of building material test specimen manufacturing equipment, and in particular to a mixer for making test specimens of construction waste roadbed filling soil. It includes a receiving device, a discharge pipe, material baffles, baffles, a centrifuge, centrifugal baffles, and a distribution chamber. The discharge pipe is a square tube with an expanded distribution chamber at its bottom. The receiving device is installed at the top of the discharge pipe. Multiple material baffles are installed inside the discharge pipe; each baffle is a concave chute or a flat chute with side baffles. The lower end of the chute's working surface converges inward. A baffle is located at the bottom of the material baffles, at the center of the connection between the discharge pipe and the distribution chamber. The centrifuge is installed inside the distribution chamber, below the baffles. The centrifugal baffles have at least two layers, surrounding the centrifuge and installed within the distribution chamber. This mixer has the function of real-time uniform mixing and distribution without material retention during the process, and is suitable for making test specimens with continuously changing material ratios.

The application belongs to the technical field of textile fabric function modification, and discloses a wear-resistant and ultraviolet-resistant fabric and a preparation method thereof.The fabric is formed by interweaving warp yarns and weft yarns to form a fabric base material, the fiber surface of the fabric base material is covalently grafted with a wear-resistant and ultraviolet-resistant composite functional layer, the warp yarns are super high molecular weight polyethylene and graphene composite modified fibers, the weft yarns are core-spun yarns with high-strength polyester fibers as the core layer and cotton fibers as the skin layer, and the wear-resistant and ultraviolet-resistant composite functional layer is a resin layer formed by covalent grafting and crosslinking of graphene core-zinc oxide shell nanoparticles modified by gamma-methacryloxypropyl trimethoxysilane and an anionic waterborne polyurethane containing an unsaturated carbon-carbon double bond at the end.The application effectively improves the bonding force of the functional layer and the base material, enhances the wash-resistant stability of the fabric function, and takes into account the wear-resistant and ultraviolet-resistant performance and the wearing comfort of the fabric, and can be widely applied in the fields of outdoor work clothes, sportswear and the like.

The utility model discloses a spiral dead steam recovery device capable of quickly replacing a heat exchange tube. The spiral dead steam recovery device comprises a heat exchange cavity, a spiral baffle plate, a straight heat exchange tube and a counterbore hole plate, counterbore hole plates are arranged at the two ends of the heat exchange cavity respectively. The spiral baffle plate is accommodated in the heat exchange cavity; the straight heat exchange pipe is detachably installed in the heat exchange cavity and penetrates through installation holes formed in the spiral baffle plate and the counterbore hole plate in an aligned mode. And the straight heat exchange tubes are connected and fixed through the nuts and the sealing gaskets, so that the straight heat exchange tubes can be quickly dismounted, replaced and mounted after being corroded or damaged.