Expansion joint device with sinkage preventing function of non-motor vehicle

Abstract

The invention relates to an expansion joint device with a sinkage preventing function of a non-motor vehicle. A cover plate for covering a first comb tooth gap and a second comb tooth gap is arrangedon a first comb plate and a second comb plate, the middle part of the cover plate covers the staggered distributed area of the first comb tooth gap and the second comb tooth gap, one side of the coverplate covers the first comb tooth plate and is limited on the first comb tooth plate through a first limiting assembly, the other side of the cover plate covers the second comb tooth plate and is limited on the second comb tooth plate through a second limiting assembly, and the cover plate and the first comb tooth plate or/and the cover plate and the second comb tooth plate can move relatively. The expansion joint device has the advantages that the cover plate covers the first and second comb tooth plates to prevent a vehicle wheel from being jammed or sinking into comb teeth; moreover, as the cover plate and the first comb tooth plate or/and the cover plate and the second comb tooth plate can move relatively, the telescopic function of the expansion joint device is not affected after thecover plate is mounted. In addition, the cover plate is quite convenient to mount and detach.

Description

Technical field [0001] The invention relates to a bridge expansion device, in particular to an expansion joint device with a non-motor vehicle anti-sagging function. Background technique [0002] At present, there are many structures of bridge expansion devices used in bridge engineering, and the more common one is comb-tooth bridge expansion devices. For the comb-tooth bridge expansion device, in order to ensure the load-bearing and anti-deflection performance of the comb tooth part of the device, each comb tooth in the comb tooth structure needs to maintain a certain width. Because the comb teeth are staggered, the comb teeth The gap between the combs is also relatively large, and the resulting problem is that when non-motorized vehicles (especially narrow-wheeled bicycles or electric vehicles) pass by, the wheels may fall into the gap between the comb teeth, which affects driving safety. In order to prevent the wheels of non-motor vehicles from falling into the gap of the com...

AI Technical Summary

Problems solved by technology

For the comb-shaped bridge expansion device, in order to ensure the load-bearing and deflection resistance of the comb part of the device, each comb in the comb structure must maintain a certain width. Since the combs are interlaced, the combs The gap between the combs is also large, and the resulting problem is that when non-motor vehicles (especially narrow-wheeled bicycles or electric vehicles) pass by, the wheels may sink into the gaps between the comb teeth, which affects driving safety.

In order to prevent the wheels of non-motor vehicles from falling into the gaps of the comb teeth, structural improvements are generally carried out by reducing the gaps between adjacent comb teeth. However, as mentioned above, after the comb teeth gaps are reduced, the width of each comb tooth The size also needs to be reduced accordingly, which will lead to a reduction in the load-bearing and deflection resistance of the comb part of the telescopic device, which will bring hidden dangers to the safety of the bridge

Some expansion joint devices adopt the structure of anti-sinking steel plates. One end of the anti-sinking steel plate is directly welded and fixed with the spanning tooth plate, and the other end rides on the fixed toothed plate. , the anti-sinking steel plate has a large amplitude, and the unfixed end is easy to tilt, which affects driving safety, and the anti-sinking steel plate is easily damaged, and maintenance is inconvenient

In addition, although some improved bridge expansion devices can prevent the wheels of non-motor vehicles from sinking, they will affect the expansion and contraction function of the bridge expansion device during use, thereby reducing the service life of the expansion device, which will also bring harm to bridge safety. Negative Effects

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