The invention provides a telescopic pipe of a motor home jack. The telescopic pipe is composed of an outer pipe formed by a round steel pipe and an aluminum alloy inner pipe connected in the outer pipe in an inserted manner, the inner pipe cannot be completely pulled out of the outer pipe, meanwhile, the two opposite sides of the inner pipe are each extruded inwards to form a vertical groove, so that the perimeter of the section of the telescopic pipe is longer under the condition that the diameter is not changed, the supporting strength of the aluminum alloy inner pipe is improved, and therefore the cost of the telescopic pipe of the structure can be reduced, and the situation that the motor home jack cannot be used due to the fact that the inner part and the outer part of the telescopic pipe are rusted together is avoided.
本发明提供一种房车千斤顶的伸缩管。该伸缩管由圆钢管构成的外管和插接在外管内的铝合金内管构成,上述内管无法完全从外管内拔出,同时内管相对两侧向内挤压有一竖直的凹槽,这样在直径不变的情况下使其截面周长更长,增加铝合金内管的支撑强度,这样结构的伸缩管其不但能减少成本,而且不会使内、外伸缩管锈在一起而造成房车千斤顶无法使用。
Telescopic pipe of motor home jack
一种房车千斤顶的伸缩管
01.06.2021
Patent
Elektronische Ressource
Chinesisch
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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