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实用新型
CN209705032U 一种单面螺栓 有权

一种单面螺栓
摘要：
本实用新型公开了一种单面螺栓，其特征在于：包括螺杆、膨胀件、控制件和弹簧；所述螺杆的螺纹端端面上开有通孔I；所述螺杆的另一端端面上开有盲孔I；所述螺杆的另一端柱面上开有膨胀孔I和膨胀孔II；所述膨胀孔I内安装有膨胀件I；所述膨胀件I的底面中心位置处开有卡槽I；所述膨胀孔II内安装有膨胀件II；所述膨胀件II的顶面中心位置处开有卡槽II；所述膨胀件I的底面和膨胀件II的顶面之间连接有若干根弹簧；所述控制件包括相连的控制头和控制杆；所述控制杆位于通孔I内；所述控制头为两端设有顶角的结构；所述控制头控制膨胀件I和膨胀件II的状态。(ESM)同样的发明创造已同日申请发明专利
摘要（英）：

The utility model discloses a single-sided bolt which is characterized by comprising a screw rod, an expansion piece, a control piece and a spring, a through hole I is formed in the end surface of thethreaded end of the screw rod; a blind hole I is formed in the end surface of the other end of the screw rod; an expansion hole I and an expansion hole II are formed in the cylindrical surface of theother end of the screw rod; an expansion piece I is mounted in the expansion hole I; a clamping groove I is formed in the center of the bottom surface of the expansion piece I; an expansion piece IIis mounted in the expansion hole II; a clamping groove II is formed in the center of the top surface of the expansion piece II; a plurality of springs are connected between the bottom surface of the expansion piece I and the top surface of the expansion piece II; the control piece comprises a control head and a control rod which are connected; the control rod is positioned in the through hole I; the control head is of a structure with vertex angles at the two ends. And the control head controls the states of the expansion piece I and the expansion piece II.

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