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Piston type needle valve for infiltration irrigation

A piston-type, seepage irrigation technology, applied in horticulture, botany equipment and methods, cultivation, etc., can solve the problems that the system seepage irrigation water supply cannot be stable and uniform, and the seepage irrigation port is prone to blockage, so as to avoid damage , prevent clogging, uniform seepage irrigation effect

Inactive Publication Date: 2007-02-14
杨安
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the existing seepage irrigation technology operations that the seepage irrigation port at the end of the water delivery and infusion system is prone to blockage and the water and liquid supply of the system seepage irrigation cannot be stable and uniform, the purpose of the present invention is to provide a system that can ensure The end seepage irrigation port is unobstructed and not blocked, and the seepage irrigation water supply can achieve a stable and uniform piston-type seepage irrigation needle valve

Method used

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  • Piston type needle valve for infiltration irrigation
  • Piston type needle valve for infiltration irrigation
  • Piston type needle valve for infiltration irrigation

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Embodiment Construction

[0013] see Figure 1 to Figure 6. The present invention has a tubular valve body 1, the middle part of the valve inner cavity 101 protrudes from a ring-shaped boss 102 on the inner wall of the valve, and a rod-shaped valve needle 2 is arranged in the center of the valve inner cavity 101, the valve needle 2 There is a vertical water outlet guide groove 21 with both ends closed on the periphery, and the middle of the valve needle 2 has four protruding edges 22 which are successively separated by 90°. The corresponding four vertically through openings 1021 allow the valve needle 2 to slide up and down along the four openings 1021. There are gaps on the top surfaces of the four flanges 22 and a gap is embedded in the gaps. The elastic sealing ring 3 around the periphery of the valve needle 2 is tightly sleeved on the outer lower part of the valve body 1 with a bottom bracket 4 with a tapered bottom. The water inlet hole 41, the inner wall of the bottom bracket 4 is provided with...

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Abstract

A piston-type needle valve for filtration irrigation is composed of valve body, valve needle with vertical water outlet slot, elastic sealing ring, base carrier with water inlet and transverse water channel, laminated piston consisting of piston rings with curved water channel and elastic sealing rings, locking mechanism, compensating piston, elastic sealing ring, elastic membrane and sealing cover for water outlet. Its advantages are not blocking and high effect.

Description

technical field [0001] The invention relates to a one-way infusion valve actuated by a fluid medium acting on a piston, in particular to a piston-type permeating needle valve Background technique [0002] In the process of pastoral cultivation, dry soil planting, barren hill afforestation and sand prevention and control, a large number of underground seepage irrigation valves (or underground drip irrigation valves) are used to automatically water the soil and crops. However, the problems existing in the existing infiltration irrigation technology for a long time are: first, when in order to meet the irrigation needs or when the water is suddenly stopped, a negative pressure will inevitably be generated in the water delivery and infusion system, and due to the adsorption of the negative pressure, the outside of the system will be absorbed. Mud mortar and other sundries are sucked into the valve body through the water outlet, which makes the seepage and irrigation port at the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/00
Inventor 杨博浪杨安
Owner 杨安
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