Preset pressure-adjustable capillary pressure adjuster

A technology of capillary pressure and preset pressure, which is applied to watering devices, gardening, botany equipment and methods, etc., to achieve the effect of convenient and quick adjustment and reduce the starting pressure

CN103141363BActive Publication Date: 2014-07-30CHINA AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2014-07-30

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Abstract

The invention relates to a preset pressure-adjustable capillary pressure adjuster, which is characterized by comprising an upstream shell, a downstream shell, a control body, a pressure adjusting assembly and a pressure adjusting spring, wherein one end of the upstream shell is provided with a water inlet; the pipe diameter of the other end of the upstream shell is enlarged; the downstream shell comprises a first cylinder and a second cylinder; the end part of the first cylinder is connected with the pipe diameter enlarged end of the downstream shell; circumferential threads of the control body are connected with the interior of the first cylinder; the middle part of the control body is provided with a through hole; one end of the pressure adjusting assembly is a conical closed end; the other end of the pressure adjusting assembly is an open end; the outer diameter of the open end is enlarged; the pressure adjusting assembly is provided with water inlets near the position of the conical closed end; the pressure adjusting assembly is arranged in the first cylinder; water stop assemblies are arranged between the circumferential direction of the open end of the pressure adjusting assembly and the circumferential direction of the first cylinder; the conical closed end of the pressure adjusting assembly passes through the through hole on the control body; the water inlets near the conical closed end are located in a cavity formed by the upstream shell and the control body; another water stop assemblies are arranged between the pressure adjusting assembly and the control body; and the pressure adjusting spring is sheathed with the periphery of the cylinder of the pressure adjusting assembly.
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Description

technical field

[0001] The invention relates to a pressure regulator used in the field of agricultural water-saving irrigation, in particular to a capillary pressure regulator with adjustable preset pressure. Background technique

[0002] The pressure regulator is a device that regulates the pressure in the pipeline in the pressure pipeline irrigation system, and is an important part of the drip irrigation system. Its main function is to keep the water pressure downstream of the pressure regulator constant when the upstream water pressure of the pressure regulator fluctuates, or to ensure that the water pressure at the entrance of each plot is equal when the distance between the head of the irrigation system and the downstream irrigation plots is not equal. Make the drip irrigation system maintain the required irrigation uniformity. In order to effectively control the irrigation uniformity of the drip irrigation system, the existing main technical solutions are pressure reg...

Examples

Embodiment 2

[0031] like Image 6 As shown, the difference between the second embodiment and the first embodiment is that: the downstream casing 2 of the present invention includes a first cylindrical body 21 and a second cylindrical body 22, and the central axis of the first cylindrical body 21 and the second circular The central axis of the cylindrical body 22 is vertical. That is, the end of the first cylindrical body 21 is connected to the side wall of the second cylindrical body 22, the side wall of the second cylindrical body 22 is provided with a through hole 25 which communicates with the interior of the first cylindrical body 21, and the second circular Both ends of the cylinder body 22 are water outlets 23, and the outer walls of the two water outlets 23 can be set in the form of screw locking. The pressure regulating assembly 4 is disposed in the first cylindrical body 21 , and the diameter of the open end 42 thereof is larger than the diameter of the through hole 25 in the sid...