Embedded Type, Inverted-filtering and Anti-Clogged Emitter and Drip Irrigation Pipeline

• US 20150136686A1
• Filed: 05/10/2013
• Published: 05/21/2015
• Est. Priority Date: 05/17/2012
• Status: Active Grant

• Current Assignee: Shanghai Yine Green Technology Co., Ltd.
• Original Assignee: Shanghai Yine Green Technology Co., Ltd.
• Inventors: Chen, Libin
• Granted Patent: US 9,387,422 B2
• Time in Patent Office: Days
• US Class Current: 210/459
• CPC Class Codes: A01G 25/00 Watering gardens, fields, sports grounds or the like special apparatus or adaptations for fertilising-liquids A01C23/00; nozzles or outlets, spraying apparatus B05B
• CPC Class Codes: A01G 25/02 Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
• CPC Class Codes: A01G 25/023 Dispensing fittings for drip irrigation, e.g. drippers
• CPC Class Codes: A01G 25/16 Control of watering
• CPC Class Codes: B01D 29/90 for feeding
• CPC Class Codes: B01D 35/02 Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks, B01D35/05 takes precedence; water pipe system filters E03B3/18, E03B7/07; dirt catchers in sewers E03F; filters or strainers for pipe-lines in general B08B, E03F; object or dirt catching devices in sinks or the like E03C1/26; suction strainers or filters for pumps F04B53/005, F04D29/70
• CPC Class Codes: B05B 1/20 Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms spray booms for agricultural uses A01M7/0071; spray bars for treating roads E01C19/176; Outlet elements therefor
• CPC Class Codes: B05B 15/40 Filters located upstream of the spraying outlets
• CPC Class Codes: Y02A 40/22 Improving land use; Improving water use or availability; Controlling erosion
• CPC Class Codes: Y02P 60/21 Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Abstract

The present invention discloses an embedded type, inverted-filtering and anti-clogged emitter and drip irrigation pipe (tape). The emitter comprises a first component and a second component which are mutually fixed, and a filter cloth sandwiched between the first component and the second component; the first component and/or the second component are provided with a diversion channel, the first part is also provided with a water outlet channel which is capable of exposing the filter cloth and enabling the filter cloth to communicate with a water outlet of a water pipe, the part around the water outlet channel is fixed with the inner wall of the water pipe, and the filter cloth sandwiched between the first component and the second component is a medium leading the diversion channel to the water outlet channel. The present invention has a simple structure, is convenient to manufacture, lay and install, is strong in controllability of flow rate of seepage water, is small, uniform and stable in discharging flow, is little in sensitivity to water pressure change, can prevent physical clogging and chemical and biological clogging, and is wide in application range.

Claims

1. An embedded type, inverted-filtering and anti-clogged emitter, which is a flat type emitter or a tubular column type, and is embedded fixed to an inner wall of a water pipeline, characterized in that, it comprises a first component and a second component which are mutually fixed, and a filter cloth sandwiched between the first component and the second component;

wherein, the first component and/or the second component are provided with a diversion channel for water passing through the water pipeline to enter the emitter and to contact the filter cloth, the first part is also provided with a water outlet channel which is capable of exposing the filter cloth and enabling the filter cloth to communicate with a water outlet of the water pipeline, the part around the water outlet channel is fixed with the inner wall of the water pipeline, and the filter cloth sandwiched between the first component and the second component is the only medium leading the diversion channel to the water outlet channel for seepage, so that water passing through the water pipeline has to seep from the diversion channel into the water outlet channel by the filter cloth clamped between the first component and the second component.

3. The embedded type, inverted-filtering and anti-clogged emitter according to claim 1, characterized in that:

the second component is box-shape;

the first component is rectangular shape that enables to be snapped in the box-shaped second component;

the first component is provided with a hollow-out portion which is capable of exposing the filter cloth and enabling the filter cloth to correspond with and to be in communication with the water outlet of the water pipeline, the filter cloth complete covers the hollow-out portion to form a water seepage portion;

the second component is provided with a pressing portion to make the filter cloth press against the first component, the second component is also provided with a diversion port which enables the water passing through the water pipeline to enter the emitter and to contact with the filter cloth;

the portion around the hollow-out portion of the emitter is mutually fixed with the inner wall of the water pipeline.

4. The embedded type, inverted-filtering and anti-clogged emitter according to claim 3, characterized in that:

the pressing portion completely covers the hollow-out portion on the projection plane, and presses against the filter cloth along the edge of the hollow-out portion, such that the water passing through the water pipeline has to pass through the filter cloth at the pressing portion to enter the hollow-out portion.

5. The embedded type, inverted-filtering and anti-clogged emitter according to claim 4, characterized in that:

the filter cloth is extended with a suction portion besides the pressing part pressed by the pressing portion, which extends to the diversion port.

6. The embedded type, inverted-filtering and anti-clogged emitter according to claim 5, characterized in that:

the sides of the first component are provided with rib or groove, the corresponding position of the second component are provided with groove or rib mutually matched with the rib or groove.

7. The embedded type, inverted-filtering and anti-clogged emitter according to claim 1, characterized in that:

the first component is a dumbbell-shaped first tubular column assembly;

the second component is a cylinder-shaped second tubular column assembly that enables to insert into and fix with one end of the first tubular column assembly;

a circle in the middle of the first tubular column assembly sags inward towards to the axis, to make the whole form a dumbbell-shape with broad tubular columns at both ends and a narrow tubular column in the middle, that is coaxial with the second tubular column assembly and is transparent in axis, so as to form a diversion channel to enable water to enter the emitter;

on the annular surface of the outer wall of the broad tubular column of one end that connects with the outer wall of the narrow tubular column, is provided one or more water seepage holes along the direction parallel to the axis;

the end of the broad tubular column provided with water seepage holes is inserted with the second tubular column assembly and fixed;

an inner ring of the water seepage holes of the broad tubular column is protruded against with a top ring of the second tubular column assembly, an annular filter cloth is sandwiched therebetween, and the filter cloth is hollow to make the axes of the two tubular column assemblies transparent;

the water seepage holes expose the filter cloth and are communication with the water outlet of the water pipeline to form the water outlet channel;

the outer walls of the broad tubular columns at both ends of the first tubular column assembly are mutually fixed with the inner wall of the water pipeline.

8. The embedded type, inverted-filtering and anti-clogged emitter according to claim 7, characterized in that:

the circle of concave position in the middle of the first tubular column assembly corresponds to the water outlet of the water pipeline, to constitute a part of the water outlet channel.

9. The embedded type, inverted-filtering and anti-clogged emitter according to claim 7, characterized in that:

the outer wall of the second tubular column assembly is provided with a rib or groove, the end of the broad tubular column provided with water seepage holes has a groove or rib mutually matched with the rib or groove.

10. The embedded type, inverted-filtering and anti-clogged emitter according to claims 1, characterized in that:

the filter cloth is geotechnical cloth, and the thickness of the geotechnical cloth after being clamped is ¼

-¾

times of natural thickness.

11. A drip irrigation pipeline having the embedded type, inverted-filtering and anti-clogged emitter according to claims 1, characterized in that:

it comprises a pipeline body and a plurality of above emitters arranged at the inner wall of the pipeline body.

12. A drip irrigation pipeline having the embedded type, inverted-filtering and anti-clogged emitter according to claims 10, characterized in that:

it comprises a pipeline body and a plurality of above emitters arranged at the inner wall of the pipeline body.

2. (canceled)