5results about How to "Guaranteed area" patented technology

This utility model provides a battery, a battery pack, and a battery device. The battery includes a shell, a cover plate, terminals, and an insulating component. The cover plate covers the opening of the shell to form the outer shell of the battery, and has mounting holes. The terminals pass through the mounting holes, with their end faces exposed. The insulating component is located between the outer periphery of the terminals and the inner edge of the mounting holes, providing insulation for the terminals and the cover plate. The end faces form welding positions for busbar welding. Since the minimum distance d1 between the insulating components and the heat deformation temperature k of the insulating components satisfy 300 mm·℃ ≤ d1*k ≤ 1900 mm·℃, the welding position area and weld length can be guaranteed, ensuring the current carrying capacity of the terminals and busbars, while preventing the insulating components from melting under the residual heat of welding, thereby ensuring the insulation performance of the insulating components.

The application provides a turbine guide vane and a throat area design and adjustment method thereof, and the method comprises the following steps: turbine guide vane aerodynamic and cooling structure design is performed; a three-dimensional geometric model of at least one cascade passage is established, the pressure and temperature of inlet gas and inlet cold gas are given, gas flow calculation is performed, the gas flow and a Mach surface in a hot cascade are obtained; the theoretical hot state throat area of the turbine guide vane is calculated; the heat insulation coating design of the turbine guide vane blade body and the rim plate flow channel surface is performed; the coating process test of the turbine guide vane is performed, the actual coating thickness of each characteristic position point is measured, the actual coating thickness is used to calculate the throat area of the turbine guide vane after the heat insulation coating is sprayed; the turbine guide vane is rotated at different angles around the blade radial direction, and the gas flow of the cascade passage under different angles is obtained; when the flow and the throat area meet the requirements, the throat area of the turbine guide vane with the coating under the rotation angle meets the gas flow requirement.

This invention relates to a transanal elliptical magnetic compression and unblocking component for treating rectal stenosis and its method of use, belonging to the field of medical devices. It includes an elliptical shell A, an elliptical shell B, a magnet component A, and a magnet component B. Magnet component A is embedded within elliptical shell A, and magnet component B is embedded within elliptical shell B. Under the action of magnet components A and B, elliptical shell A and elliptical shell B are attracted together, and their shapes are adapted to each other. This invention provides a transanal magnetic compression and unblocking device adaptable to different degrees and types of rectal stenosis. Through structural optimization, it improves the passageability and compression accuracy of the stenotic segment, solving the problem of rectal stenosis for patients and improving their quality of life.

The application discloses a folding joint, which comprises an upper joint, a lower joint, a hinge shaft, a handle body and a tightening mechanism, one end of the handle body is provided with an eccentric part; the inner side walls of the upper joint and the lower joint are respectively provided with an upper locking groove and a lower locking groove, the tightening mechanism comprises a tightening block, an adjusting screw rod and an adjusting sleeve rod, one side of the tightening block is provided with a tightening part matched with the upper locking groove and the lower locking groove, the other side is provided with a ball socket groove, one end of the adjusting screw rod is provided with a ball head part, the other end is threadedly connected with the adjusting sleeve rod, the ball head part is matched with the ball socket groove in a spherical surface, and the tightening block can be universally swung. The folding joint disclosed by the application is matched with the ball socket groove of the tightening block in a spherical surface through the ball head part of the adjusting screw rod, the universal swinging capability of the tightening block is achieved, the sufficient occlusal area and the locking strength are effectively ensured, and the locking reliability is improved.

The utility model discloses a kind of hot melting welding devices for plastic butt joint, including multiple support frames, multiple the support frame are all equipped with heating plate and fixed frame by cylinder respectively, connecting wire is installed on the heating plate, function block is fixedly arranged on the fixed frame, transmission chamber and rotating chamber are equipped in the function block, transmission shaft is rotatably arranged in the transmission chamber, power mechanism connected with transmission shaft is equipped on the fixed frame, screw rod extending into transmission chamber is rotatably arranged in the rotating chamber. The utility model is fixed from inside to outside by positioning plate, utilizes the annular structure of pipe material to bear internal force, can be fixed firm, can also avoid that external excessive pressure leads to pipe material deformation, ensure butt joint accuracy and internal flow area, guarantee use performance.