A noise reduction bridge expansion joint device with vertical displacement function

Abstract

The invention discloses a noise-reducing bridge expansion joint device with vertical displacement function, which comprises a seam-spanning plate (3) arranged on the bridge joint, and the first end of the seam-spanning plate (3) is passed through a fixing bolt ( 8) It is positioned on the first beam body (1) on one side of the bridge joint, and the second end is located on the second beam body (2) on the other side of the bridge joint and can move relative to the second beam body (2). Between the bottom of the first end of the slit plate (3) and the surface of the first beam body (1), a planar sliding plate (61) and an elastic lining plate (62) are sequentially arranged from top to bottom. Compared with the prior art, when the beam body is displaced vertically in the present invention, the first end of the seam-spanning plate can be adaptively displaced relative to the first beam body with the fixed bolt as the center line, which is simple and easy To ensure that the vehicle can pass through the bridge expansion joint surface smoothly; and to ensure that the span plate can always be in a stable and smooth moving state when it is displaced relative to the first beam body, basically without noise. Very environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of bridge expansion joints, in particular to a noise-reducing bridge expansion joint device with a vertical displacement function. Background technique [0002] In the existing bridge expansion joint devices, no matter it is a comb-type plate type or a welded type, a spanning plate is arranged on the bridge expansion joint, and one end of the spanning plate is fixed on the beam body on one side of the bridge joint, and the other One end is located on the beam body on the other side of the bridge expansion joint and can move relative to the beam body. Such as the Chinese invention patent "A kind of extra-large deflection-resistant comb type bridge expansion joint device" that the patent No. ZL200410049491.5 (notification number is CN1333137C) that I proposed earlier is just like this. The fixed comb plate and the movable comb plate on the beam body on both sides of the seam, wherein, the first end of the mov...

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Problems solved by technology

[0003] However, in this solution, when the rotating shaft rotates relative to the shaft seat, if the lubrication is insufficient, noise will be generated. Since the bridge expansion joint device is always exposed to the natural environment, impurities and dirt will easily enter the shaft seat after a long time of use, causing damage to the rotating shaft. The rotation of the relative shaft seat has adverse effects. Moreover, this solution requires the mutual cooperation of the shaft and the shaft seat. The specific implementation structure is relatively complicated, and the installation and matching are also more particular.

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