34results about How to "Improve the ability to resist external damage" patented technology

The invention discloses a compression connected type double-umbrella-shaped or three-umbrella-shaped disk-shaped suspension-type composite string insulator unit which comprises a core rod, hardware fittings arranged at the two ends of the core rod, and a protective sleeve arranged on the outside of the core rod in a covering mode. A double-umbrella-shaped or three-umbrella-shaped umbrella skirt extending along the circumference direction of the protective sleeve is arranged on the protective sleeve. The hardware fittings are connected to the core rod in a compression mode. Sealing structures are formed on outer surfaces of the hardware fittings after high-temperature solidification. The compression connected type double-umbrella-shaped or three-umbrella-shaped type disk-shaped suspension-type composite string insulator unit has the advantages of preventing bird troubles, resisting to sand blown by wind, resisting to damage by external force and being capable of assisting climbing.

The invention relates an approach to produce artificial pumice. It is burned by nether materials: inorganic material, sodium hydroxide, borax, Paris white, carbon dust and isinglass. Thereinto, inorganic material is selected from minerals or clay. It follows nether steps: mixing above materials in terms of given ratio, cracking blending to 60-200 items and loading into a module to bake.

The invention discloses an electrified railway-used bar-shaped column type porcelain polymer composite insulator. The composite insulator comprises a porcelain core bar with more than one porcelain umbrella skirt. Two ends of the porcelain core bar are adhered with metal fittings via an adhering agent. The external surface of the porcelain core bar is covered with a polymer sheath with more than one polymer umbrella skirt. The surface of the porcelain core bar is processed via a coupling agent. The sheath and the umbrella skirt are solidified via high temperature and formed in one step on the porcelain core bar via an overall injection or pouring process. The umbrella skirt on the sheath comprises more than one large umbrella-shaped protrusion which is coaxially arranged with the porcelain core bar. The umbrella of the large umbrella-shaped protrusion is from 30mm to 60mm after the umbrella stretches out. The electrified railway-used bar-shaped column type porcelain polymer composite insulator which is pollution-flashover-resistant, bird-pecking-resistant and wind-and-sand-resistant is high in pollution flashover voltage so that crack and break in the process of using can be prevented. Meanwhile, the electrified railway-used bar-shaped column type porcelain polymer composite insulator has characteristics of being bird-trouble-resistant, wind-and-sand-resistant, external-force-damage-resistant and assistant in climbing and stepping.

The invention discloses an Automatic Teller Machine (ATM) coin storage box with multiple security and protection structures. The ATM coin storage box comprises a box body, a lock and a cross rail mechanism. The box body comprises an outer steel plate and an inner steel plate. Concrete interlayer are arranged between the outer steel plate and the inner steel plate, and reinforced rib plates are arranged in the concrete interlayer, are about reverse-U-shaped or Z-shaped after steel plate bending and are welded on the outer steel plate and / or the inner steel plate. The three layers of interlayer structures are adopted, the reinforced rib plates are arranged in the concrete interlayer, and therefore cutting resistance and breaking resistance of the box body are greatly improved, and overall weight and production cost are not increased too much. In addition, double locks and a plurality of reentrant locks are adopted for the lock and the cross rail mechanism so that outer force damage resistance of the lock and the cross rail mechanism is further improved, and the overall performance can meet the four-level standards of safety certification of the European Committee for Standardization (CEN).

The invention discloses a polymer disc-shaped insulation piece for a disc-shaped suspension type insulator string element and a manufacturing method of the polymer disc-shaped insulation piece, wherein the polymer disc-shaped insulation piece for the disc-shaped suspension type insulator string element comprises an umbrella skirt, a glue mounting portion with a hollow cavity which is in the shape of an inverted cone is arranged in the center of the umbrella skirt, and the polymer disc-shaped insulation piece for the disc-shaped suspension type insulator string element is made of hydrophobic cycloaliphatic epoxy resin. According to the polymer disc-shaped insulation piece for the disc-shaped suspension type insulator string element and the manufacturing method of the polymer disc-shaped insulation piece, the hydrophobic cycloaliphatic epoxy resin is utilized, and therefore the wind and sand resistant ability and the external force damage resistant ability of the polymer disc-shaped insulation piece are enhanced, and damage to the polymer disc-shaped insulation piece due to pecking of birds can be prevented. Meanwhile, engineering personnel can step on the umbrella skirt in a certain range in a construction process when necessary, and therefore construction is benefited, and the safety factor of the engineering personnel in the construction process is increased.

The invention relates to the technical field of power cables, and discloses a single-core power cable. The single-core power cable comprises a cable conductor, and a conductor shielding layer, an insulating layer, an insulating shielding layer, an inner sheath layer, a water-resisting layer and a non-metallic outer sheath layer arranged in turn from inside to outside along the radial direction ofthe cable conductor, wherein the inner sheath layer is made of carbon fiber. The single-core power cable has the advantage of effectively avoiding partial discharge due to the air gap between the inner sheath layer and the insulating shielding layer and also has the advantages of reliable electrical performance, good resistance to external destructive force, corrosion resistance and good mechanical performance.