Highway bridge expansion device sealing protection structure: Fid-Bau Portal

Highway bridge expansion device sealing protection structure

ZHOU ZHAOHUA

The invention discloses a highway bridge expansion device sealing protection structure which comprises shells, the bottom ends of the two shells are each provided with a first wall body, the bottom ends of the shells are each fixedly connected with the corresponding first wall body, and the bottom ends of the two first wall bodies are each provided with a bottom plate. According to the sealing protection structure of the highway bridge telescopic device, a shell on a first wall stretches out and draws back on the outer wall of a first transverse rod, first compression springs on the two sides apply inward force to rubber pads on the two sides, the rubber pads are attached to the outer wall of the first transverse rod all the time, and gaps between the first transverse rod and through grooves in the shell are sealed through the rubber pads; external dust is prevented from entering the shell, meanwhile, the rubber ring seals a gap between the sliding groove and the sliding block, dust is prevented from entering the gap, normal telescopic adjustment is guaranteed, and the problem that due to the fact that an existing highway bridge telescopic device sealing protection structure is poor in sealing effect, dust is prone to entering a telescopic device, and normal telescopic adjustment is affected is solved.

本发明公开了一种公路桥梁伸缩装置密封防护结构，包括壳体，两个所述壳体的底端均设有第一墙体，所述壳体的底端均固接有第一墙体，两个所述第一墙体的底端设有底板。该公路桥梁伸缩装置密封防护结构，第一墙体上的壳体在第一横杆的外壁伸缩，且两侧的第一压缩弹簧给两侧的橡胶垫向内侧的力，使橡胶垫始终贴合在第一横杆的外壁，橡胶垫对第一横杆与壳体上的通槽之间的缝隙进行密封，防止外接灰尘进入壳体内，同时橡胶圈对滑槽与滑块之间的缝隙进行密封，避免灰尘进入，保证可以正常伸缩调节，解决了现有的公路桥梁伸缩装置密封防护结构，由于密封效果不佳，易使灰尘进入伸缩装置内，从而影响正常伸缩调节的问题。

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