Prestressed anchorage device for highway bridge construction: Fid-Bau Portal

Prestressed anchorage device for highway bridge construction

WEI GONGBO / HOU DI / TANG JINGWEN

The invention relates to the technical field of prestressed anchorage devices, and discloses a prestressed anchorage device for highway bridge construction, the prestressed anchorage device comprises an inner gear ring and two end plates, the two end plates are located on the front surface and the rear surface of the inner gear ring respectively, and the front surface and the rear surface of the inner gear ring are both provided with annular grooves; when the anchor device is used, a steel bar penetrates through the multiple insertion openings, then the inner gear ring is rotated, the steel bar can be fixed in the insertion openings, and therefore the anchoring effect is achieved, when the anchor device needs to be detached, the steel bar can be fixed into the insertion openings, and when the anchor device needs to be detached, the steel bar can be fixed into the insertion openings through the inner gear ring. When the steel bar is tensioned, the pressing rod is directly pressed, at the moment, the inner gear ring rotates reversely under the action of the reset gear, the anchorage device can be detached from the tensioned steel bar, and compared with a traditional pre-stressed anchorage device, the anchorage device is more convenient and faster to install and detach and more convenient for constructors to operate and use.

本发明涉及预应力锚具技术领域，且公开了一种公路桥梁施工用预应力锚具，包括内齿圈和端板，所述端板的数量为两个，两个所述端板分别位于所述内齿圈的前后表面，所述内齿圈的前表面和后表面均开设有环槽，两个所述端板的相对侧均对称固定有滑块，所述滑块位于所述环槽的内部，且与所述环槽滑动连接，本发明在使用的时候，使钢筋穿过多个插口，然后转动内齿圈，即可将钢筋固定在插口中，从而实现锚固的作用，当需要对锚具进行拆卸的时候，直接按压按压杆，此时在复位齿轮的作用下使内齿圈反向转动，即可将锚具从张力后的钢筋上拆卸下来，相较于传统的预应力锚具，该锚具安装和拆卸都更加的方便快捷，更加方便施工人员操作使用。

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