CN107821106B - Pressure compensation type water dropper for drip irrigation - Google Patents
Pressure compensation type water dropper for drip irrigation Download PDFInfo
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- CN107821106B CN107821106B CN201710900725.XA CN201710900725A CN107821106B CN 107821106 B CN107821106 B CN 107821106B CN 201710900725 A CN201710900725 A CN 201710900725A CN 107821106 B CN107821106 B CN 107821106B
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- water storage
- flow channel
- storage chamber
- water
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
- A01G25/023—Dispensing fittings for drip irrigation, e.g. drippers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Abstract
The invention provides a pressure compensation type water dropper for drip irrigation, which comprises a first water storage chamber, a second water storage chamber and a flow passage for communicating the first water storage chamber with the second water storage chamber, wherein the first water storage chamber is provided with a water inlet communicated with the outside, the second water storage chamber is provided with a water outlet hole, and resistance teeth are arranged in the flow passage; and one side of the punching part is communicated with the water outlet, and the other side of the punching part is communicated with a water storage part. The pressure compensation type drip emitter for drip irrigation provided by the invention can avoid the blockage of the drip emitter on the premise of ensuring the drip tube effect, and can prevent the negative pressure condition.
Description
Technical Field
The invention belongs to the field of drip irrigation drippers, and particularly relates to a pressure compensation type dripper for drip irrigation.
Background
The water-saving irrigation is a main measure adopted by developing modern agriculture in various countries of the world, the drip irrigation is an advanced high-standard irrigation technology in the water-saving irrigation, and the drip irrigation pipe has the advantages of water saving, yield increasing, high efficiency, environmental protection and the like, and is widely applied to farmlands, greenhouses, ecological gardens and urban greening.
At present, the commonly used pressure compensation type dripper mainly comprises an on-pipe type dripper and an embedded type dripper, and the pressure compensation type dripper can ensure better water outlet uniformity in a pressure compensation range. However, the existing pressure compensation dripper is used for adjusting pressure by changing the overflow area of the dripper, when the overflow area is reduced, some impurity particles in water cannot pass through the dripper, so that the dripper is blocked, and the existing pressure compensation dripper capable of avoiding the blocking of the dripper cannot normally drip the drip irrigation pipe when negative pressure is generated in the drip irrigation pipe.
Disclosure of Invention
In view of the above, the present invention aims to provide a pressure compensation type drip emitter for drip irrigation, which can prevent the drip emitter from being blocked and prevent negative pressure from being generated on the premise of ensuring the drip effect.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a pressure compensation type drip emitter for drip irrigation comprises
The water storage device comprises a first water storage chamber, a second water storage chamber and a flow passage communicated with the first water storage chamber and the second water storage chamber, wherein the first water storage chamber is provided with a water inlet communicated with the outside, the second water storage chamber is provided with a water outlet hole, and resistance teeth are arranged in the flow passage;
one side of the punching part is communicated with the water outlet hole, and the other side of the punching part is communicated with a water storage part;
the runner includes first runner and the second runner of intercommunication each other, first runner and first water storage room intercommunication, second runner and second water storage room intercommunication, and first runner and first water storage room are mirror image setting with second runner and second water storage room.
Further, the first flow channel comprises at least two serpentine flow channels and a buffer flow channel which is arranged between the two serpentine flow channels and is communicated with the two serpentine flow channels, and the resistance teeth are arranged in the buffer flow channel.
Further, the first flow channel is arranged in an S shape, the upper section and the lower section of the S-shaped first flow channel are serpentine flow channels, and the middle section is a buffer flow channel.
Further, the device also comprises an elastic membrane, wherein the elastic membrane comprises a near water surface and a water outlet surface, one side of the near water surface vertically extends out of the chamber wall of the first water storage chamber, and the other side vertically extends out of the first flow channel and flows to the wall;
a plurality of partition walls are arranged on the flow channel walls on two sides of the serpentine flow channel in a staggered manner, and gaps exist between each partition wall and the flow wall on the other side;
the resistance teeth are arranged in the buffer flow channel.
Further, one end of the chamber wall is provided with a communication port, and the first water storage chamber is communicated with the first flow passage through the communication port.
Further, the second flow channel and the second water storage chamber are arranged on the water outlet surface of the elastic membrane in a mirror image mode relative to the first water storage chamber and the first flow channel, and the elastic membrane is provided with a through hole for enabling the first flow channel and the second flow channel to be communicated.
Further, the elastic membrane is arranged in a non-capping shell, the shell is divided into a water inlet layer and a water outlet layer which are not communicated with each other, and a top cover for sealing the shell is arranged at the top of the shell;
the water outlet hole is formed in the top cover;
the water inlet is formed in the bottom surface of the shell.
Further, a filtering part is arranged on the bottom surface of the shell and is close to the side of the water gap, and the filtering part comprises a plurality of filtering fences.
Further, the outside edge of top cap is protruding round arris frame, is equipped with two beads along width direction span in the arris frame, punch portion and water storage portion are enclosed for arris frame and bead, still open the opening on the bead.
Furthermore, the bottom surface and the top cover of the shell are respectively provided with a water storage sealing strip and a runner sealing strip which are opposite to the chamber wall, the runner wall and the partition wall.
Compared with the prior art, the pressure compensation type drip emitter for drip irrigation has the following advantages:
the pressure compensation type drip emitter for drip irrigation fully utilizes the space, avoids the blockage of the drip emitter while ensuring the drip tube effect, and can continue drip irrigation when negative pressure is generated in the drip irrigation tube.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
In the drawings:
FIG. 1 is a schematic representation of a three-dimensional explosion of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the near water surface structure within the elastomeric membrane;
FIG. 4 is a three-dimensional view of the exterior bottom surface of the housing;
FIG. 5 is a schematic view of the interior bottom surface of the housing;
fig. 6 is a schematic view of the bottom surface of the top cover.
Reference numerals illustrate:
1-a housing; 2-top cover; 3-an elastic membrane; 11-water inlet; 12-a filter section; 121-a filter fence; 13-a water storage sealing strip; 14-a runner sealing strip; 15-grooves; 21-a water outlet part; 211-water outlet holes; 22-a punching part; 23-a water storage part; 24-edge frames; 25-ribs; 251-opening; 26-boss; 31-flow channel; 311-first flow channel; 3111-serpentine flow channels; 3112-buffer flow channels; 312-second flow channel; 321-a first water storage chamber; 322-a second water storage chamber; 33-flow channel walls; 34-dividing walls; 35-chamber walls; 36-resistance teeth; 37-through holes; 38-communication port
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in FIG. 1, a pressure-compensated drip emitter for drip irrigation comprises
The square casing 1 that does not have the top cap, the opening part of casing 1 is covered with a top cap 2, inside casing 1 is arranged in to top cap 2 and top cap 2 lateral wall and casing 1 inner wall are sealed, casing 1 inner space is divided into the intake layer and the play water layer that are not intercommunicated by an elastic membrane 3, elastic membrane 3 includes intake and play water face.
The water inlet layer of the shell 1 is formed by enclosing the water inlet surface of the elastic membrane 3 and the bottom surface and the side wall of the shell 1, and the water outlet layer is formed by enclosing the water outlet surface of the elastic membrane 3, the top cover 2 and the side wall of the shell 1.
As shown in fig. 4, a water inlet 11 is formed on one side of the bottom surface outside the shell 1, a filtering part 12 is formed on the other side, a plurality of filtering fences 121 are arranged on the filtering part 12, and a first water storage chamber 321 and an S-shaped first flow channel 311 are arranged in the water inlet layer and are opposite to the water inlet 11;
as shown in fig. 3, the first water storage chamber 321 includes a chamber wall 35 vertically extending from the water inlet surface of the elastic membrane 3, and a water storage sealing strip 13 disposed on the bottom surface of the housing 1 and opposite to the chamber wall 35, a communication port 38 is opened on the chamber wall 35 to enable the first water storage chamber 321 to communicate with the first flow channel 311, the S-shaped first flow channel 311 includes an upper section, a lower section, two serpentine flow channels 3111, and a buffer flow channel 3112 connected to the two serpentine flow channels 3111 in the middle section, each serpentine flow channel 3111 includes two flow channel 31 walls vertically extending from the water inlet surface of the elastic membrane 3 and a plurality of partition walls 34, the two flow channel 31 walls are opposite to each other, and the partition walls 34 are staggered between the two flow channel 31 walls; the two side walls of the buffer flow channel 3112 are provided with corresponding resistance teeth 36; the communication port 38 is located at an end of the S-shaped flow path 31.
The water outlet surface of the elastic membrane 3 is provided with a second flow channel 312 and a second water storage chamber 322 which are arranged in a mirror image with the first flow channel 311 and the first water storage chamber 321, and the structure thereof is not described herein.
As shown in fig. 2 and fig. 3 in combination, one end of the first flow channel 311 is connected to the first water storage chamber 321, and the elastic membrane 3 at the other end is provided with a through hole 37, which is communicated with the second flow channel 312.
As shown in fig. 5, the bottom surface of the casing 1 of the water inlet layer is provided with a sealing strip 14 of the flow channel 31 corresponding to the flow channel 31 wall and the partition wall 34 of the first flow channel 311.
As shown in fig. 6, a sealing strip 14 of the runner 31 corresponding to the runner 31 wall and the partition wall 34 of the second runner 312 is arranged on one surface of the top cover 2 of the water outlet layer; the edge of the other surface is protruded with a rib frame 24, two ribs 25 are arranged in parallel along the width direction in the surface, and the rib frame 24 and the ribs 25 enclose a water outlet part 21, a punching part 22 and a water storage part 23; the water outlet portion 21 is corresponding to the second water storage chamber 322 and is communicated with the second water storage chamber through a water outlet 211, and a notch 251 is formed on the two ribs 25, so that the water outlet portion 21, the punching portion 22 and the water storage portion 23 are communicated sequentially.
A groove 15 is formed at the joint of the bottom surface of the shell 1 and a side wall in the length direction and is used for ensuring that the directions of the pressure compensation type drippers are consistent in the dripper selecting disc.
As shown in fig. 6, a strip-shaped boss 26 is provided on a side wall of the top cover 2 in the longitudinal direction, so as to connect and seal the top cover 2 and the housing 1.
The edge frame 24 and the convex edge 25 are adhered to the inner wall of the drip irrigation belt, the drip irrigation belt is perforated by the perforation part 22, water flows through the filtering part 12 and is filtered, enters the first water storage chamber 321 from the water inlet 11, then sequentially passes through the first flow channel 311, the second flow channel 312, the second water storage chamber 322 and the water outlet part 21, enters the perforation part 22 and flows out of the drip irrigation hole to drip irrigation of a farmland, and redundant water enters the water storage part 23 to prevent negative pressure. The resistance teeth 36 are made of elastic material, and when water flows through the buffer channel 3112, the resistance teeth 36 change according to the water flow, so that the water enters the following channel 31 at a uniform flow rate.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. The utility model provides a drip irrigation pressure compensation formula water dropper which characterized in that: comprising
The water storage device comprises a first water storage chamber (321) and a second water storage chamber (322), and a flow channel (31) which is communicated with the first water storage chamber (321) and the second water storage chamber (322), wherein the first water storage chamber (321) is provided with a water inlet (11) which is communicated with the outside, the second water storage chamber (322) is provided with a water outlet (211), and resistance teeth (36) are arranged in the flow channel (31);
a punching part (22), one side of which is communicated with the water outlet hole (211), and the other side of which is communicated with a water storage part (23);
the runner (31) comprises a first runner (311) and a second runner (312) which are communicated with each other, the first runner (311) is communicated with a first water storage chamber (321), the second runner (312) is communicated with a second water storage chamber (322), and the first runner (311) and the first water storage chamber (321) are arranged in mirror images with the second runner (312) and the second water storage chamber (322);
the first flow channel (311) comprises at least two serpentine flow channels (3111) and a buffer flow channel (3112) which is arranged between the two serpentine flow channels (3111) and is communicated with the two serpentine flow channels (3111), and the resistance teeth (36) are arranged in the buffer flow channel (3112);
the first flow channel (311) is arranged in an S shape, the upper section and the lower section of the S-shaped first flow channel (311) are serpentine flow channels (3111), and the middle section is a buffer flow channel (3112);
the water storage device further comprises an elastic membrane (3), wherein the elastic membrane (3) comprises a water inlet surface and a water outlet surface, one side of the water inlet surface vertically extends out of a chamber wall (35) of the first water storage chamber (321), and the other side vertically extends out of a flow passage wall (33) of the first flow passage (311);
a plurality of partition walls (34) are alternately arranged on the flow channel walls (33) on two sides of the serpentine flow channel (3111), and gaps exist between each partition wall (34) and the flow-to-wall on the other side;
the resistance teeth (36) are arranged in the buffer flow channel (3112);
the elastic membrane (3) is arranged in a non-capping shell (1) and divides the shell (1) into a water inlet layer and a water outlet layer which are not communicated with each other, and a top cover (2) for sealing the shell (1) is arranged at the top of the shell (1); the water outlet hole (211) is formed in the top cover (2);
the water inlet (11) is formed in the bottom surface of the shell (1);
the top cover is characterized in that a circle of rib frames (24) are protruded on the outer side edge of the top cover (2), two ribs (25) are arranged in the rib frames (24) in a crossing mode along the width direction, the punching part (22) and the water storage part (23) are formed by encircling the rib frames (24) and the ribs (25), and openings (251) are formed in the ribs (25).
2. The pressure compensated drip emitter for drip irrigation according to claim 1, wherein: one end of the chamber wall (35) is provided with a communication port (38), and the first water storage chamber (321) is communicated with the first flow channel (311) through the communication port (38).
3. The pressure compensated drip emitter for drip irrigation according to claim 1, wherein: the second flow channel (312) and the second water storage chamber (322) are arranged on the water outlet surface of the elastic membrane (3) in a mirror image mode relative to the first water storage chamber (321) and the first flow channel (311), and a through hole (37) for enabling the first flow channel (311) and the second flow channel (312) to be communicated is formed in the elastic membrane (3).
4. The pressure compensated drip emitter for drip irrigation according to claim 1, wherein: a filtering part (12) is arranged on the bottom surface of the shell (1) near the side of the water gap, and the filtering part comprises a plurality of filtering fences (121).
5. The pressure compensated drip emitter for drip irrigation according to claim 1, wherein: the bottom surface of the shell (1) and the top cover (2) are respectively provided with a water storage sealing strip (13) and a flow passage sealing strip (14) which are opposite to the chamber wall (35), the flow passage wall (33) and the partition wall (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900725.XA CN107821106B (en) | 2017-09-28 | 2017-09-28 | Pressure compensation type water dropper for drip irrigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900725.XA CN107821106B (en) | 2017-09-28 | 2017-09-28 | Pressure compensation type water dropper for drip irrigation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107821106A CN107821106A (en) | 2018-03-23 |
| CN107821106B true CN107821106B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710900725.XA Active CN107821106B (en) | 2017-09-28 | 2017-09-28 | Pressure compensation type water dropper for drip irrigation |
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| CN (1) | CN107821106B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109169196B (en) * | 2018-10-31 | 2021-02-05 | 青岛农业大学 | Spray head with pressure compensation function, spray irrigation belt and processing method of spray irrigation belt |
| CN111492946B (en) * | 2020-04-23 | 2023-10-27 | 秦春明 | Pressure compensation drip irrigation pipe with anti-blocking function and processing method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5183208A (en) * | 1990-07-20 | 1993-02-02 | Agroteam Consultants Ltd. | Drip irrigation emitter |
| IL164043A (en) * | 2004-09-13 | 2010-11-30 | Plastro Irrigation Systems Ltd | Dual component drip emitter and its production means |
| WO2007046105A2 (en) * | 2005-10-19 | 2007-04-26 | Plastro Irrigation Systems Ltd. | Drip emitter |
| CN204598870U (en) * | 2015-03-23 | 2015-09-02 | 大禹节水（天津）有限公司 | A kind of pressure compensating emitter |
| CN204994372U (en) * | 2015-09-09 | 2016-01-27 | 广东顺威三月雨微灌溉科技发展有限公司 | Embedded pressure compensated dripper with low pressure antidrip |
| CN207783841U (en) * | 2017-09-28 | 2018-08-31 | 大禹节水（天津）有限公司 | A kind of anti-negative pressure trickle irrigation pressure compensating emitter |
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2017
- 2017-09-28 CN CN201710900725.XA patent/CN107821106B/en active Active
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| CN107821106A (en) | 2018-03-23 |
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