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The self-locking positioning structure comprises a front ladder assembly, a pedal, a rear ladder assembly and a swing rod structure, the front ladder assembly comprises two front ladder rods, and the rear ladder assembly comprises two rear ladder rods; the ladder is characterized by further comprising a positioning rod and a self-locking positioning structure, and the positioning rod is arranged on the two rear ladder rods and located below the pedals; the self-locking positioning structure comprises a mounting frame, a reset spring, a push rod and a mounting seat; the installation frame is installed at the bottom of the pedal, the push rod penetrates through the installation frame, one end of the push rod is provided with a push-press part, and the other end of the push rod is provided with a limiting block. The mounting seat is mounted at the bottom of the mounting frame, a limiting groove is formed in the bottom of the mounting seat, and a limiting plate is further arranged on the push rod; a hook is arranged at the bottom of the limiting plate; a guide inclined surface is arranged at the bottom of the hook; the reset spring is arranged on the push rod. The herringbone ladder positioning device has the advantages that after the herringbone ladder is opened, the herringbone ladder can be quickly and completely positioned, the positioned herringbone ladder is stable, the herringbone ladder does not shake in the herringbone ladder moving process, and the herringbone ladder positioning device is safe and reliable.
本发明及一种于人字梯的自锁定位结构,包括前梯架、踏板、后梯架及摆杆结构,前梯架包括两根前梯杆,后梯架包括两根后梯杆;其特点是还包括定位杆及自锁定位结构,定位杆设在两根后梯杆上并位于踏板的下方;自锁定位结构包括安装架、复位弹簧、推杆及安装座;安装架安装在踏板的底部,推杆穿过安装架上,推杆的一端设有推按部,推杆的另一端设有限位块;安装座安装在安装架的底部,在安装座底部设有限位槽,在推杆上还设有限位板;在限位板的底部设有挂钩,挂钩的底部设有导斜面;复位弹簧设在推杆上。其优点是打开人字梯后,能快捷的将人字梯完全定位,定位后的人字梯稳固,移动人字梯过程中人字梯也不会发生晃动,安全可靠。
The self-locking positioning structure comprises a front ladder assembly, a pedal, a rear ladder assembly and a swing rod structure, the front ladder assembly comprises two front ladder rods, and the rear ladder assembly comprises two rear ladder rods; the ladder is characterized by further comprising a positioning rod and a self-locking positioning structure, and the positioning rod is arranged on the two rear ladder rods and located below the pedals; the self-locking positioning structure comprises a mounting frame, a reset spring, a push rod and a mounting seat; the installation frame is installed at the bottom of the pedal, the push rod penetrates through the installation frame, one end of the push rod is provided with a push-press part, and the other end of the push rod is provided with a limiting block. The mounting seat is mounted at the bottom of the mounting frame, a limiting groove is formed in the bottom of the mounting seat, and a limiting plate is further arranged on the push rod; a hook is arranged at the bottom of the limiting plate; a guide inclined surface is arranged at the bottom of the hook; the reset spring is arranged on the push rod. The herringbone ladder positioning device has the advantages that after the herringbone ladder is opened, the herringbone ladder can be quickly and completely positioned, the positioned herringbone ladder is stable, the herringbone ladder does not shake in the herringbone ladder moving process, and the herringbone ladder positioning device is safe and reliable.
本发明及一种于人字梯的自锁定位结构,包括前梯架、踏板、后梯架及摆杆结构,前梯架包括两根前梯杆,后梯架包括两根后梯杆;其特点是还包括定位杆及自锁定位结构,定位杆设在两根后梯杆上并位于踏板的下方;自锁定位结构包括安装架、复位弹簧、推杆及安装座;安装架安装在踏板的底部,推杆穿过安装架上,推杆的一端设有推按部,推杆的另一端设有限位块;安装座安装在安装架的底部,在安装座底部设有限位槽,在推杆上还设有限位板;在限位板的底部设有挂钩,挂钩的底部设有导斜面;复位弹簧设在推杆上。其优点是打开人字梯后,能快捷的将人字梯完全定位,定位后的人字梯稳固,移动人字梯过程中人字梯也不会发生晃动,安全可靠。