Portable ultralow space jack

Abstract

The invention relates to a portable ultralow space jack which is characterized by being a device comprising an ordinary jack (1), a pedestal frame (2) and a hoisting frame (3), wherein the pedestal frame (2) is used for fixing the jack, and the hoisting frame (3) is connected with an elevating push rod; the jack (1) is fixed on the pedestal frame (2), and the hoisting frame (3) is connected with the elevating push rod and sleeved on a guide rod (5) of the pedestal frame (2) through a guide sleeve (7). The invention greatly widens the rescue range of the ordinary jack and can permit a gap withthe minimum hoisting size approaching to zero; and the device has simple structure, can be artfully combined with the ordinary jack, is convenient to disassemble and carry, has convenient operation, large elevating force and low manufacturing cost and is convenient for large-scale popularization and application.

Description

technical field [0001] The invention relates to a portable jack lifting device for working in a narrow ultra-low space. Background technique [0002] Jack is an important mechanical device common in mechanical maintenance and various disaster relief, generally there are mechanical jacks and hydraulic jacks. Due to the limitation of their own basic dimensions, the minimum external length when retracted is more than 200mm, so that the space height of the object during lifting is not less than the minimum external size of the jack. [0003] On many occasions, we will see that people or objects that urgently need rescue in wild emergencies are under heavy obstacles, and are located at very low or extreme positions, or even in very narrow gaps. It is impossible to achieve the expected rescue purpose with manpower. [0004] At present, several commonly used methods that can lift in a small space height are: one, use a lifting air bag; two, use a hard crowbar; three, use a crane ...

AI Technical Summary

Problems solved by technology

Among them, the cost of the first type of lifting air bag is relatively high; the second type can only pry the gap width very small, the lifting weight and height are small, and the safety and stability are poor; the third type requires large-scale lifting airbags. Heavy equipment, because the equipment is too large and cumbersome (such as large cranes, gas cutting equipment), it is impossible to reach the rescue site quickly and in time, and many best opportunities for rescue are missed. Destroy

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