Expansion type anti-pulling connecting structure and application: Fid-Bau Portal

Expansion type anti-pulling connecting structure and application

ZHENG WEIHAI / ZHENG YAQIANG

The invention discloses an expansion type anti-pulling connecting structure and application. The expansion type anti-pulling connecting structure comprises a first connecting piece, a second connecting piece and abutting parts, wherein the first connecting piece is integrally connected to at least two clamping pieces, an opening groove is formed between every two adjacent clamping pieces, connecting holes for the clamping pieces to extend into are formed in the second connecting piece, the inner side walls of the connecting holes have a taper of which the inner diameter is gradually increased from the extending direction of the clamping pieces, abutting parts are further arranged in the connecting holes, the clamping pieces extend into the connecting holes, and the abutting parts abut against and opens the clamping pieces and enable the clamping pieces to abut against the inner side walls of the connecting holes. The expansion type anti-pulling connecting structure and the application have the advantages of being convenient to install and firmer in connection among prefabricated parts.

本发明公开一种膨胀式抗拔连接结构及应用，包括第一连接件、第二连接件和抵顶部，所述第一连接件上一体连接有至少两个卡接片，相邻两个卡接片之间形成有开口槽；所述第二连接件上形成有供所述卡接片伸入的连接孔，所述连接孔的内侧壁具有由卡接片的伸入方向内径逐渐增大的锥度；所述连接孔内还设置有抵顶部；所述卡接片伸入于所述连接孔内，所述抵顶部抵顶撑开卡接片并将所述卡接片抵紧在所述连接孔的内侧壁上。其具有安装便捷，预制构件之间的连接更加牢固的特点。

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