Hand-operated lifting device which is convenient to excavate

Abstract

The invention discloses a hand-operated lifting device which is convenient to excavate. The hand-operated lifting device comprises a lifting device, a power device 5 and an excavation drill 15, wherein the lifting device comprises a stand column and a lifting device arranged on the stand column; the lifting device comprises a lifting support assembly, a large pulley fixed support assembly, a large pulley, a rotating shaft, a small pulley, a steel wire rope and a lifting guide pipe; the lifting support assembly is arranged on the stand column by the lifting guide pipe; the large pulley fixed support assembly is arranged on the stand column; the rotating shaft is arranged on the large pulley fixed support assembly; the large pulley is arranged on the rotating shaft; the small pulley is arranged on an upper fixed support assembly; and the steel wire rope is arranged in a hub of the large pulley and is connected with the lifting support assembly by the small pulley. In the hand-operated lifting device which is convenient to excavate and the improvement on an excavator, due to the adoption of mechanical force transfer and manual control, the excavating effect can be improved effectively, the drilling degree of the excavation drill can be controlled conveniently, and the obstruction of hard soil on the excavation drill can be overcome, and thus, the hand-operated lifting device is convenient and durable. Simultaneously, work which is applied by the counterforce which is born by the excavation drill is not transferred to human bodies directly, but is weakened by a mechanical force arm to be transferred to the human bodies, so the labor intensity of operators is low, and the hand-operated lifting device is safe and reliable.

Description

technical field [0001] The invention relates to the field of excavators, in particular to the improvement of a hand-operated lifting device for easy excavation. Background technique [0002] my country is the largest producer of citrus in the world. In our country, about 90% of citrus is planted on the mountain. In the past, man-made pits were generally used with hoes or shovels for fertilization. Therefore, the labor intensity of digging operation is very big. And many orchards are in the rugged land with steep slopes or even no driveway at all, so the suspension type diggers and chain trenchers with mature technology and high efficiency cannot enter. Thus, in those places, the digging operation is almost entirely performed manually, resulting in low efficiency of organic fertilizer application. In summary, it is necessary to develop a hole-digging machine suitable for rugged mountainous areas. [0003] At present, existing on the market is the portable hole digging ma...

AI Technical Summary

Problems solved by technology

But, in actual use, there are still following problems in this type of portable hole digging machine: one, the operator manually directly operates the digging bit, and it is difficult to control the speed of excavation; The power is directly transmitted to the arm, which is completely borne by the operator, resulting in a very high labor intensity for the operator; 3. The operator directly operates the excavation drill bit manually, which is close to the drill bit of the excavation drill bit, and the drill bit is easy to hurt people; 4. The operator directly operates the excavation drill manually. Digging bits, digging bits have poor adaptability to hard soils

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