The invention relates to a thread jack with the rapid jacking function. The thread jack comprises a supporting ring, a jacking mechanism and a base sleeve which are connected in sequence. The base sleeve is composed of a hollow cylinder at the upper end and a hollow circular truncated cone at the lower end. A pair of small holes are correspondingly formed in the two sides of the hollow cylinder. The jacking mechanism comprises a jacking rod, a fixed insertion rod, a threaded rod and a handle. The jacking rod is arranged in the base sleeve and the top end of the jacking rod is provided with a threaded hole with which the threaded rod is connected. Multiple through holes A are axially and evenly distributed in the jacking rod. A circular channel in which the fixed insertion rod is inserted is formed by the through holes A and the small holes in the base sleeve. The fixed insertion rod is arranged in the circular channel. The threaded rod is connected to the top end of the jacking rod and a through hole B in which the handle is inserted is formed in the threaded rod in the radial direction. The thread jack has the beneficial effects that the jacking rod is arranged, an object can be located in the jacking range rapidly, and the thread jack can be suitable for jacking the high object.
Thread jack with rapid jacking function
2015-12-09
Patent
Electronic Resource
English
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 |
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European Patent Office | 2022
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