Semi-closed assembly type cable bracket and sun shade

Abstract

The invention discloses a semi-closed assembly type cable bracket and a sun shade. A cable bracket supporting arm comprises a bracket supporting arm top plate and a bracket supporting arm end plate, the bracket supporting arm end plate is arranged at the end, away from a stand column, of the bracket supporting arm top plate and extends downwards, and the bracket supporting arm top plate and the bracket supporting arm end plate are each provided with a sunshade mounting hole; the sun shade top plate is mounted on the bracket supporting arm top plate on the top layer through the sun shade mounting holes and bolts; the sun shade side plates are semi-closed side plates and are installed on the multiple bracket supporting arm end plates upwards from the bottom layer through sun shade mounting holes and bolts, an opening between the uppermost end of each semi-closed side plate and the corresponding bracket supporting arm top plate forms the whole semi-closed sun shade, and an installation and disassembly space is formed. The cable bracket has the advantages of being firm in fixation, safe, easy to mount and dismount, convenient to inspect, attractive, resistant to corrosion and the like, and the requirement for protecting the rail transit looped network cable is met.

Description

technical field [0001] The invention belongs to the field of rail transit power supply systems, and in particular relates to a semi-enclosed assembled cable bracket and a sunshade. Background technique [0002] Since the cables of domestic rail transit are laid on the support on the ground or on the elevated section, it is difficult to install sunshade facilities on the support, and there are factors of unsafety and poor scenery. Therefore, most projects do not install sunshades, or only set sunshades. Considering the real-time changes in the angle of the sun, therefore, the cables cannot be effectively protected. Although the cables on the ground and overhead sections (especially the medium-voltage ring network cables) have anti-ultraviolet function, they are limited by the material properties of the cable outer sheath and the production process and construction process of the cable manufacturer, resulting in rail transit In the project, the outer sheath of the medium-volt...

AI Technical Summary

Problems solved by technology

[0002] Since the cables of domestic rail transit are laid on the support on the ground or on the elevated section, it is difficult to install sunshade facilities on the support, and there are factors of unsafety and poor scenery. Therefore, most projects do not install sunshades, or only set sunshades. Taking into account the real-time changes in the angle of the sun, therefore, the cable cannot be effectively protected

Although the cables on the ground and overhead sections (especially the medium-voltage ring network cables) have anti-ultraviolet function, they are limited by the material properties of the cable outer sheath and the production process and construction process of the cable manufacturer, resulting in rail transit In the project, the outer sheath of the medium-voltage ring network cable was affected by direct sunlight and cracked.

The cracking of the outer sheath of the cable directly affects the safe operation of rail transit

[0003] In recent years, some projects have begun to install fully enclosed sunshades on the ground and elevated section cable supports, such as figure 1 The structure shown in CN208209447U, when self-tapping screws are used for installation, the cable is easy to be damaged and the risk of falling off in the later stage is relatively large; when bolted connection is used, the installation is difficult due to the limitation of the operating space

At the same time, it is difficult to meet the normal inspection and maintenance needs of the operating unit in the later stage, and the project economy is poor

When the strong and weak current cables are laid on the same side, there are many support layers (8 layers and above), and it is extremely difficult to adopt a fully enclosed installation at this time, and the wind pressure is high when the vehicle passes by, and the risk of falling off increases over time.

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