Self-compensating cable bridge

Abstract

The invention relates to the technical field of power equipment, and discloses a self-compensating cable bridge which comprises a bridge box, one end of the bridge box is fixedly connected with an adjusting protrusion, the other end of the bridge box is provided with an adjusting groove, one end of the adjusting protrusion is fixedly connected with a rubber layer, and the outer side of the top of the bridge box is provided with a clamping groove. The two ends of the outer side of the bottom of the bridge box are fixedly connected with symmetrical buckling protrusions. Through the designed adjusting protrusions, the adjusting grooves, the rubber layers and the lock catches, prestress provided by the rubber layers and the lock catches is obtained when the adjacent bridge frames are installed, the prestress provided by the rubber layers and the lock catches is eliminated when the bridge frames stretch out, draw back and displace, the safety of the bridge frames is guaranteed. When the prestress is invalid due to the force generated by the expansion and the displacement of the bridge, the lock catches are loosened, the expansion and the displacement of the bridge can be automatically adjusted through the free sliding of the adjusting bulge and the adjusting groove, and meanwhile, the falling of the bridge is avoided.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a self-compensating cable tray. Background technique [0002] The cable tray is a device that protects and supports the laying of cables in the electrical system. However, due to the thermal expansion and contraction caused by temperature changes and the influence of external dynamic loads such as wind, the bridge at both ends of the bridge will expand and shift. The bridge frame is generally fixed by a locking device, which makes the bridge frame prone to impact and fracture during expansion and displacement, and is affected by long-term dynamic loads, and the locking device at the connection is prone to loosening, causing the bridge frame to fall. The cable at the connection is affected by the expansion and displacement of the bridge, and the outer insulating layer of the cable will be frictionally cut with the connection of the bridge, which will damage the outer in...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the use of the existing cable tray proposed in the background technology, the present invention provides a self-compensating cable tray, which has the advantages that the cables are arranged neatly, the spontaneous combustion of the cable cannot affect the adjacent cables, and the displacement of the bridge under dynamic load The advantages of automatic adjustment during expansion and contraction, avoiding the breakage and falling of the bridge frame, and solving the technical problems raised in the above-mentioned background technology

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