The invention relates to the field of building pinch bars, in particular to a bar pulling device. The bar pulling device comprises a supporting seat, a pinch bar, an iron chain and a replaceable buckle used for clamping a stand column of a protective fence; the pinch bar is hinged to the supporting seat, one end of the iron chain is connected to the end of the pinch bar, and the other end of the iron chain is connected to the replaceable buckle; and the lower end of the supporting seat is fixed to the stand column or the ground, the stand column is clamped by the replaceable buckle, the pinch bar is pried downwards according to the lever principle to pull out the stand column, and the load acting on the device is evenly distributed and free of loss when force is exerted. The device is simple in structure, light in weight, convenient to carry, low in manufacturing cost, quite suitable for pulling out old protective fence stand columns around railways and highways, convenient to replace the stand columns and capable of greatly improving the working efficiency.
本发明涉及建筑撬杆领域,特别是涉及一种拔杆装置,包括支撑座、撬杆、铁链和用于卡住防护栅栏立柱的可更换卡扣;撬杆铰接在支撑座上,铁链的一端与撬杆的端头连接,铁链的另一端与可更换卡扣连接;通过将支撑座的下端固定于立柱或地面上,可更换卡扣卡住立柱,利用杠杆原理向下撬动撬杆将立柱拔出,用力时作用在装置上的载荷分布均匀、无损失;本装置结构简单,质量轻,便于携带,制作成本低廉,非常适用于拔出铁路、公路周边老旧防护栏杆立柱,便于立柱更换,极大提升工作效率。
Bar pulling device
拔杆装置
2021-11-05
Patent
Electronic Resource
Chinese
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / E01F ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE , Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl. |
Steel column pulling auxiliary device and pulling method
European Patent Office | 2022
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