Pin type connecting piece and precast concrete pile: Fid-Bau Portal

Pin type connecting piece and precast concrete pile

ZHAO MENGYAO

The invention discloses a pin type connecting piece which comprises a first nut sleeve, a second nut sleeve, an opening insertion rod and a locking positioning pin. The two ends of the first nut sleeve are connected with the main rib and the perforated insertion rod respectively; a positioning pin hole is formed in one end of the perforated insertion rod; the second nut sleeve comprises a second nut sleeve body and a locking positioning pin mounting cylinder, and one end of the second nut sleeve body is connected with the main reinforcement; a locking positioning pin is arranged in the locking positioning pin mounting cylinder; and when the trepanning insertion rod is inserted into the second nut sleeve, the locking positioning pin can limit and fix the trepanning insertion rod and the second nut sleeve. When the pin type connecting piece is used for connecting the precast concrete piles, it can be guaranteed that the connecting end faces of the two sections of precast piles are completely attached without gaps.

本发明公开了一种销钉式连接件，包括第一螺母套筒、第二螺母套筒、开孔插杆以及锁紧定位销；第一螺母套筒的两端分别与主筋和开孔插杆连接；开孔插杆的一端设有定位销孔；第二螺母套筒包括第二螺母套筒本体和锁紧定位销安装筒，第二螺母套筒本体的一端与主筋连接；锁紧定位销安装筒内设有锁紧定位销；当开孔插杆插入第二螺母套筒中时，锁紧定位销能够将开孔插杆与第二螺母套筒进行限位固定。本发明公开的销钉式连接件具有在用于预制混凝土桩连接时，能够保证两节预制桩连接端面之间完全贴合无间隙。

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