Plastic-coated hose easy to pull and resistant to abrasion

Abstract

A plastic-coated hose easy to pull and resistant to abrasion comprises an outer plastic layer, a woven bag and an inner plastic layer, wherein the woven bag is arranged between the outer plastic layer and the inner plastic layer, and an abrasion-resistant protruding body is arranged on the outer surface of the outer plastic layer. The structure not only improves the abrasion resistance of the plastic-coated hose, reduces the pulling resistance of the plastic-coated hose, but also improves the pressure resistance of the plastic-coated hose, and prolongs the service life.

Description

Technical field: [0001] The invention relates to a water delivery hose, in particular to a plastic-coated hose for agricultural irrigation. Background technique: [0002] In the process of watering crops, plastic-coated hoses are usually used as water delivery pipes. When in use, they are unfolded, and the length can be quickly connected at will, and can be disassembled and rolled up when not in use. The structure of the existing plastic-coated hose is as follows: figure 1 As shown, it includes an outer plastic layer 1, a woven bag 2 and an outer plastic layer 3, the woven bag is arranged in the middle of the outer plastic layer and the inner plastic layer, and the surface of the outer plastic layer is a smooth cylindrical surface with a woven bag texture, because There is a total distance between the place where the watering operation is required and the place where the diesel engine water pump unit is placed. The watering area is determined by the length of the plastic-co...

AI Technical Summary

Problems solved by technology

[0003] First, the plastic-coated hose is in contact with the ground, and friction will inevitably occur between the two during the dragging process. Continuous pulling and friction will damage the plastic-coated hose and reduce the service life of the plastic-coated hose;

[0004] Second, the weight of the plastic-coated hose body is large during water delivery, and the contact area with the ground is large, the dragging resistance is large, the dragging is very difficult, and the labor intensity is high;

[0005] Third, the compressive strength of plastic-coated hoses of the same specification is not high. Since the destination of water delivery is usually a distance from the water pump, it is necessary to continuously drag the entire water delivery hose on the ground. In order to ensure that the water delivery hose can spray water to the end of the required irrigation range, in the process, the drag and friction of the water delivery hose will gradually wear out the outer plastic layer, resulting in a decrease in the pressure resistance of the entire water delivery hose. If the water delivery pressure is too high, the pipe body will break and the service life will be shortened directly

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