6results about How to "Uniform protection" patented technology

The utility model relates to a PE (Poly Ethylene) packaging film with moisture-proof and waterproof performance, which belongs to the technical field of packaging films and comprises a bottom layer used for contacting with a product, a contact bulge fixed at the bottom of the bottom layer, a buffer layer arranged above the bottom layer, an accommodating groove formed on the buffer layer through stamping, and a protective layer arranged above the buffer layer. A protective structure is embedded in the bottom of the protective layer, a top layer is arranged above the protective layer, the containing grooves are filled with expansion filler, the expansion filler is bentonite or a cement-based material, the number of the buffer layers is two, the number of the protective layers is two, the containing grooves in the buffer layers are arranged in a matrix mode, and the containing grooves in different layers are arranged in a staggered mode. According to the packaging film, friction force is increased through the bottom layer contact protrusions, sliding displacement of a product is avoided, and stability is enhanced; the buffer layer containing groove is filled with materials, water can be absorbed, holes can be blocked, impact force can be dispersed, and the damp-proof and waterproof performance is improved; the protective structure of the protective layer enhances the strength and toughness, so that the protection is more uniform, and the protective effect is enhanced.

This utility model discloses a road marking pollution prevention device during construction, relating to the technical field of road construction equipment. It includes a fixed plate, with several electric push rods evenly arranged on the left outer wall of the fixed plate. A mounting shell is provided at the end of the telescopic arm of each electric push rod. A slider is slidably mounted inside the mounting shell, and a threaded rod is rotatably mounted inside the mounting shell, passing through and threadedly connected to the slider. A mounting frame is provided on the side wall of the slider, and a fixed shell is located at the bottom left side of the mounting frame. A groove is provided on the upper inner wall of the fixed shell, and two sliding plates are slidably mounted on the fixed shell. A protective plate is provided at the bottom of the sliding plates. This utility model uses the electric push rods and threaded rods to adjust the position of the mounting shell and protective plate, while simultaneously adjusting the spacing of the protective plates with a bidirectional screw. This allows the device to adapt to road markings of different thicknesses and positions, ensuring that the markings receive comprehensive and uniform protection during construction.

The application discloses a pipeline defect ultrasonic guided wave detection device and method based on a piezoelectric transduction principle, which comprises a plurality of ultrasonic guided wave excitation and receiving modules which are hingedly connected to each other through connecting pieces with concave-convex structures to form an array ring arranged around the circumference of a pipeline to be detected; a single ultrasonic guided wave excitation and receiving module comprises a connecting piece, a transducer module, and a first fine-tuning elastic pre-pressing assembly connected between the connecting piece and the transducer module; a sensitive piezoelectric transducer unit is arranged at the bottom end of the transducer module and connected with the transducer module through a second fine-tuning elastic pre-pressing assembly; the first fine-tuning elastic pre-pressing assembly is adjusted to tightly fix the transducer module to the pipeline to be detected; and the second fine-tuning elastic pre-pressing assembly is adjusted to fine-tune the pre-pressing force between the sensitive piezoelectric transducer unit and the pipeline to be detected.

The invention relates to the technical field of electric power fittings, and particularly discloses an assembled grading ring which comprises a grading pipe, an adjusting rod is fixedly connected to the side face of the grading pipe, a fixing frame is fixedly connected to the side face of the adjusting rod, a fixing plate is fixedly connected to the inner wall of the fixing frame, and the fixing frame comprises a main support. The side face of the main support is rotationally connected with a left rotating frame through a rotating shaft, the side face of the left rotating frame is fixedly connected with a fixing seat, the side face of the fixing seat is fixedly connected with a braking seat, and the side face of the main support is fixedly connected with the side face of a pressure equalizing pipe. The end, away from the left rotating frame, of the main support is rotationally connected with a right rotating frame through a rotating shaft, and during installation, the brake seat is released, so that the left rotating frame and the right rotating frame rotate along the side face of the main support, and therefore the assembled grading ring can be conveniently clamped into the side face of a cable. The purposes of convenient installation and disassembly and automatic adjustment according to the cable are achieved.

The invention relates to the technical field of data centers, and discloses a water supply device of an offshore data center cooling system, which comprises a pump protection pipe, a pipeline assembly and a submersible pump, the lower end of the pump protection pipe extends into seawater, the upper end of the pump protection pipe extends above an ocean platform, the pipeline assembly and the submersible pump are arranged in the pump protection pipe, and the submersible pump is fixedly connected to the lower end of the pipeline assembly. The pipeline assembly comprises a plurality of water pipe units which are connected with one another, the water pipe units can move in the axial direction of the interior of the pump protection pipe, and the water pipe units and the submersible pump can be hoisted out of or hoisted into the pump protection pipe section by section from the position above the ocean platform. Through the modular design, the pipeline assemblies can be flexibly combined according to the water depth, the water pipe units are short in length, the requirement for hoisting equipment is low, maintenance can be completed through conventional tools of the platform, divers are not needed during maintenance, all operations are conducted on the platform, and the difficulty and cost are greatly reduced.