CN2459877Y - Pressure compensated drip irrigation nozzle - Google Patents

Abstract

A pressure-compensated drip irrigation dripper, which includes a dripper seat, a dripper body and a pressure compensation diaphragm, the dripper seat and the pressure compensation diaphragm are connected in the form of a socket, and the dripper and the dripper body are connected by a snap ring , The pressure compensation diaphragm and the dripper body realize the control of the flow through different installation angles of the positioning pins. The utility model adopts a split design, which is easy to disassemble, prevents clogging, and can conveniently realize the control of the flow.

Description

Pressure Compensated Drip Irrigation Emitter

The utility model belongs to a high-efficiency water-saving irrigation device, in particular to a controllable pressure-compensated drip irrigation drip head.

The currently well-known drippers use long flow channels to reduce water pressure, thereby achieving the design purpose of drip irrigation. However, due to the small size of the dripper, in order to form a long flow channel, the cross-sectional area of the flow channel must be reduced. One of the main problems is that the dripper has poor anti-clogging ability, which may easily cause the dripper to fail. In addition, the known drippers are suitable for fixed flow rates. When the flow rate changes in a large range, it is not suitable for use in rural areas in my country, which will have a certain impact on the promotion of high-efficiency water-saving agriculture.

The purpose of the utility model is to overcome the above-mentioned shortcomings of the prior art, and provide a drip irrigation dripper which is easy to disassemble, prevents clogging, and can conveniently realize the adjustment of the flow rate.

In order to achieve the above purpose, the solution of the utility model is that it includes: a dripper seat, a dripper body and a pressure compensation diaphragm arranged between the dripper seat and the dripper body, and a clamp is arranged on the dripper seat , The dripper body is provided with a clasp, and the dripper seat is connected to the dripper body through the clasp and the clamp.

The dripper seat of the utility model is provided with connecting pins, and the pressure compensation diaphragm is provided with jacks, and the connecting pins on the dripper seat are inserted into the jacks of the pressure compensation diaphragm.

The dripper body of the utility model is provided with a flow gear, and the pressure compensation diaphragm is provided with a fixed body pin, and the positioning pin of the pressure compensation diaphragm is aligned with different flow gears of the dripper seat.

A pressure compensation cavity is arranged between the dripper seat and the pressure compensation diaphragm of the utility model.

Energy-dissipating steps and eddy current generating teeth are arranged in the body of the dripper of the utility model.

The body of the dripper of the utility model is provided with a confluence energy dissipation chamber and a dripper boss.

The utility model adopts a split design, which can be easily disassembled and installed, so that the deposited impurities can be cleaned, and the installation angle of the passing flow gear can be conveniently adjusted for the flow.

Fig. 1 is a main sectional view of the utility model.

Fig. 2 is A-A sectional view of the utility model.

Fig. 3 is B-B sectional view of the utility model.

Below in conjunction with accompanying drawing, structural principle and working principle of the present utility model are described in further detail.

See accompanying drawings 1 and 2. The connecting pin (17) on the dripper seat 1 of the utility model is inserted into the socket 18 of the pressure compensation diaphragm 4, and the positioning pin 16 on the pressure compensation diaphragm 4 is aligned with the different flow positions 14 on the dripper seat 1. , so as to realize the control of the flow rate, the dripper seat 1 and the dripper body 15 are connected by the snap ring 12 and the clamp 13, so as to realize the purpose of easy disassembly.

See accompanying drawings 1 and 2. The working principle of the utility model is realized in this way: firstly, the water enters the pressure compensation cavity 2 through the emitter seat 1, flows through the pressure compensation diaphragm 4 through the small hole 3, enters the flow channel 5, and passes through the energy dissipation step 6 in the flow channel 5 and the eddy current generating tooth 7 to generate eddy current, reduce the water head and enter the confluence energy dissipation chamber 8, because the water flow flows through the drip nozzle boss 9 from both sides and then converges in opposite directions, thereby further decompressing and reducing the water flow velocity, and finally the water with a very low flow velocity overflows The drip hole 10 of the drip nozzle boss 9 enters the drip nozzle 11 . The pressure compensation cavity 2 and the flow channel 5 of the utility model are divided into two independent parts by the pressure compensation diaphragm 4, and the selection of different flow rates is realized through the different installation angles between the pressure compensation diaphragm 4 and the flow channel 5, and the flow channel 5 The design adopts the large cross-section labyrinth flow channel analyzed by computational fluid dynamics to generate eddy currents, which can effectively reduce the water head and prevent the clogging of the drip nozzle by impurities in the water; the drip nozzle designed in the flow channel 5 and the drip nozzle area The boss 9 can effectively prevent impurities from blocking the drip nozzle. Since the dripper seat 1 and the dripper body 15 can be easily disassembled and installed through the snap ring 12 and the clamp 13, the impurities deposited on the boss can be cleaned. .

Claims (6)

1, pressure-compensated drip irrigation emitter, it comprise water dropper seat (1), water dropper body (15) and be arranged on water dropper seat (1) and water dropper body (15) between pressure compensation diaphragm (4), it is characterized in that: water dropper seat (1) is provided with clip (13), water dropper body (15) is provided with snap ring (12), and water dropper seat (1) links to each other with clip (13) by snap ring (12) with water dropper body (15).

2, pressure-compensated drip irrigation emitter according to claim 1, it is characterized in that: said water dropper seat (1) is provided with connecting pin (17), pressure compensation diaphragm (4) is provided with jack (18), and the connecting pin (17) on the water dropper seat (1) inserts in the jack (18) of pressure compensation diaphragm (4).

3, pressure-compensated drip irrigation emitter according to claim 1, it is characterized in that: said water dropper body (15) is provided with flow gear (14), pressure compensation diaphragm (4) is provided with decides body pin (16), and the alignment pin (16) of pressure compensation diaphragm (4) is aimed at water dropper seat (1) different flow gear (14).

4, pressure-compensated drip irrigation emitter according to claim 1 is characterized in that: be provided with pressure compensation chamber (2) between said water dropper seat (1) and the pressure compensation diaphragm (4).

5, pressure-compensated drip irrigation emitter according to claim 1 is characterized in that: be provided with energy dissipating step (6) and eddy current generation tooth (7) in the said water dropper body (15).

6, pressure-compensated drip irrigation emitter according to claim 1 is characterized in that: be provided with conflux energy dissipating chamber (8) and drip nozzle boss (9) in the said water dropper body (15).

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