Cable nozzle sheath device

Abstract

The invention discloses a cable tube opening sheath device which comprises a handle (10) and a plurality of rolling wheel assemblies. The rolling wheel assemblies comprise rolling wheel bases (6), rolling wheels and rolling wheel shafts (7), the rolling wheels and the rolling wheel shafts (7) are arranged between the adjacent rolling wheel bases (6), the rolling wheel assemblies are movably connected to form an annular whole with an open end, sheath flat steel (3) capable of being supported on a cable protection tube (8) is arranged between the rolling wheel bases and at the open end of the annular whole respectively, adjusting bolt angle steel (1) is fixedly arranged on the sheath flat steel at the open end of the annular whole, and the handle (10) is fixed to the adjusting bolt angle steel. The cable tube opening sheath device is simple in structure and convenient to dismount and mount, sliding friction of a cable on an outlet of the cable protection tube can be changed into rolling friction in the traction process, traction resistance is reduced, the traction process is smoother, direct contact of the cable on the outlet of the cable protection tube and a cable steel tube is separated, and the cable is prevented from being damaged when penetrating through the tube. The rolling wheel assembles are increased and decreased, and therefore the device can be suitable for being used in traction of different cables.

Description

technical field [0001] The invention relates to a cable protection device, in particular to a cable duct opening sheath device installed at the cable duct opening. Background technique [0002] At present, for the purpose of urban construction and urban beautification, the erection of power lines has gradually changed from overhead lines to cables into the ground. During the traction process of the cable into the ground, the cable sheath (rubber protective insulation layer) is likely to rub against the water chestnut or burr on the outer wall of the pipe mouth at the cable nozzle, resulting in damage to the rubber and plastic sheath, and may cause cable insulation in severe cases. The damage of the layer will affect the normal operation of the cable and even cause electric shock accidents. When the nozzle of the cable tube is not handled properly, it will cause damage to the protective insulation layer of the cable. During the direct burial laying of this type of cable, it ...

AI Technical Summary

Problems solved by technology

During the traction process of the cable into the ground, the cable sheath (rubber protective insulation layer) is likely to rub against the water chestnut or burr on the outer wall of the pipe mouth at the cable nozzle, resulting in damage to the rubber and plastic sheath, and may cause cable insulation in severe cases. The damage of the layer will affect the normal operation of the cable and even cause electric shock accidents

When the nozzle of the cable tube is not handled properly, it will cause damage to the protective insulation layer of the cable. During the direct burial laying of this type of cable, it is easy to be damp and cause intermittent short-circuits until it is blown out. Such faults often cause multiple cables to burn at the same time. bad; safety hazard

The existing technology is to expand the mouth of the protective pipe (cable pipe) into a bell mouth to reduce the chance of friction, but the production process requires welding and stretching, which is not efficient during installation and affects the construction progress

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