Plastic hose for irrigation and its manufacturing process

Abstract

An irrigation plastic water hose comprises a hose wall made of plastic, and the hose wall is in lap joint end to end circumferentially to form a hose cavity. A plurality of through holes are formed in the hose wall, a plastic nut is matched with and arranged at each through hole correspondingly, the axial lengths of the plastic nuts are between 0.7cm and 2.0cm, and screw holes are formed in the center of plastic nut bodies. The plastic nuts are integrally injection molded to form circular protruding edges protruding and extending to the periphery, the circular protruding edges are disposed in a hose cavity of the plastic water hose, plastic nut bodies penetrate the through holes in the plastic water hose wall outwards, and the circular protruding edges are fused or bonded with the inner surfaces of the hose walls of the through hole edge areas. The invention further provides a production process of the irrigation plastic water hose. The irrigation plastic water hose can be recovered and wound conveniently, water guide tubes cannot be pushed outward by the water pressure easily to cause separation and water leakage even during large irrigation water pressure, and farmers can mount and dismount the water diversion tubes conveniently.

Description

technical field [0001] The invention belongs to the technical field of agricultural irrigation equipment, and in particular relates to a plastic hose for irrigation and a manufacturing process thereof. Background technique [0002] Plastic water belts (especially PE water belts) are widely used in irrigation systems for agricultural planting. After the existing plastic hose is laid on the planting site, the farmers must drill holes on the wall of the hose (drilling installation holes) at the irrigation site, and install water-guiding pipe fittings (such as straight-through pipe fittings, tee pipe fittings, etc.) ) in order to draw and distribute water from the tee fitting. [0003] The structures and usage methods of the existing common water guide pipe fittings are as follows: figure 1 shown. The water guide pipe 30 is formed with an annular groove 301. The diameter of the front end of the water guide pipe 30 is slightly larger than the diameter of the installation hole ...

AI Technical Summary

Problems solved by technology

[0005] 1. When the water belt needs to be retracted after each use, there is a dilemma whether to unplug the water guiding pipe 30: if the water guiding pipe is pulled out, the water guiding pipe must be re-inserted forcibly when used next time, but the plastic water pipe The installation hole of the belt is actually difficult to withstand such tossing back and forth many times. The edge of the installation hole is easy to crack or be damaged during the process of pulling out and inserting back and forth once or twice, so that it is difficult to form a sealing fit with the front end of the water pipe. but on the contrary, if the water guide pipe 30 is not pulled out, the retracted water belt cannot be curled up. ), so the axial length of the water guide pipe needs to be longer (generally more than 5 cm), and its radius is not large, which is more abrupt and not flat enough, so it is impossible to bring the water belt retract and coil up

[0006] 2. Under the influence of the extrapolation of the irrigation water pressure over time, the water guide pipes are easy to be pushed outward by the water pressure and fall off, or water seeps around the water guide pipes, affecting normal use; and once the water guide pipes and the hose wall are in contact If the part is slightly separated, under the continuous action of water pressure, the separated part will expand and spread, and finally the water guide pipe will be completely separated from the hose wall

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