Clamping structure for bridge expansion device
A telescopic device and connecting structure technology, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of high cost, easy loosening of screws, complicated rotating pair structure, etc., and achieve the effects of pollution prevention, flexible rotation and simple structure
Pending Publication Date: 2022-06-24
吴树超
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Problems solved by technology
[0003] In order to overcome the problems of complex structure, high cost and easy loosening of screws of the bridge telescopic device, the present invention provides a clamping structure with simple structure, easy installation and maintenance
Method used
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[0017] like figure 1 As shown, the exploded view shows the interrelationship of the parts and the basic appearance characteristics. To help understand the present invention, its specific structural features are optional solutions, not mandatory solutions, and do not limit the present invention.
[0018] like figure 2 As shown, in order to make the drawing neat, only the appearance of one pivoting bracket (6) hinged with the anchoring frame (1) by snap connection is shown, and the hinged half beam (not shown) and the pivoting bracket are not affected.
[0019] like image 3 As shown, the rotating shaft (2) is connected with the anchoring frame (1). The connection method is different, and the structure style of the rotating shaft and the anchoring frame is different, as long as it is not pulled out and the basic shape and position tolerance is enough. It does not even have to be fixed relative to the anchoring frame, for example rotatable. That is, the shaft and the hole a...
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A clamping structure for a bridge expansion device is simple in structure, easy to install and maintain, free of loosening and flexible in rotation. According to the technical scheme, a rotating shaft is installed on an anchoring frame in the expansion joint direction, an annular groove is formed in the position, close to the upper end, of the rotating shaft, a vertical through hole is formed in a rotating support, the rotating shaft penetrates through the vertical through hole of the rotating support, and a clamping spring is embedded into a shaft end groove, so that the rotating function of the rotating support is guaranteed, and axial movement is limited. And a flat gasket and an elastic gasket are arranged between the clamp spring and the rotating bracket and are filled and sealed by lubricating grease. The top of the rotating shaft is covered by a rubber cap to ensure cleanness. And compared with the installation of the rotating bracket of the mutually-supported bridge expansion device, the cost is greatly reduced.
Description
technical field [0001] The invention relates to a clamping structure for a bridge expansion device, which is especially suitable for the installation of a mutually supported bridge expansion device and a rotating bracket of a chain-type seamless bridge expansion device. Background technique [0002] The inter-supported bridge expansion device successfully meets the requirements of composite displacement of large bridges. The half beams are installed along the bridge to avoid vibration; the half beams are mutually supported to avoid tilting; the rotating bracket can easily meet the horizontal and vertical free displacement. The chain-type seamless bridge expansion device also uses the chain to fill the joints, which improves the flatness of the bridge deck and reserves more design freedom. However, the way in which the rotating bracket is connected to the anchor plate needs to be improved. Although the annular groove at the bottom of the rotating bracket is matched with the...
Claims
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IPC IPC(8): E01D19/06E01D19/00
CPCE01D19/06E01D19/00
Inventor吴树超吴沛浓吴沛铮
Owner吴树超