CN112470881A - Flow-channel-variable patch type elastic flat dripper and elastic dripper injection molding material - Google Patents
Flow-channel-variable patch type elastic flat dripper and elastic dripper injection molding material Download PDFInfo
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- CN112470881A CN112470881A CN202011547534.8A CN202011547534A CN112470881A CN 112470881 A CN112470881 A CN 112470881A CN 202011547534 A CN202011547534 A CN 202011547534A CN 112470881 A CN112470881 A CN 112470881A
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- elastic
- dripper
- variable
- flow passage
- fixed labyrinth
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a surface-mounted elastic flat dripper with a variable flow channel and an elastic dripper injection molding material, which comprise an elastic dripper body, a water inlet groove, a water outlet groove and a flow channel, wherein the water inlet groove is arranged at one end of the top surface of the elastic dripper body, and the water outlet groove is arranged at the other end of the top surface of the elastic dripper body; the runner is composed of a fixed labyrinth runner and a variable runner, the variable runner is positioned below the fixed labyrinth runner, and the fixed labyrinth runner is communicated with the variable runner; the upper part of the variable flow passage is provided with a fixed labyrinth flow passage bulge, the lower part of the variable flow passage is provided with a pressure deformation sheet, the front ends of the fixed labyrinth flow passage and the variable flow passage are communicated with the water inlet groove, and the rear ends of the fixed labyrinth flow passage and the variable flow passage are communicated with the water outlet groove. The invention is made into a whole by elastic injection molding materials, is applied on the inner wall of the drip irrigation pipe for use, can timely adjust the water outlet flow according to the water supply pressure, and improves the irrigation effect.
Description
Technical Field
The invention relates to an improvement of a patch type flat dripper, belongs to the technical field of water-saving irrigation, and particularly relates to a patch type elastic flat dripper with a variable flow passage and an elastic dripper injection molding material.
Background
At present, patch type drip irrigation tubes are mostly adopted for irrigation in micro drip irrigation engineering. This kind of SMD drips irrigation pipe, constitute by driping irrigation pipe and SMD flat water dropper, SMD flat water dropper interval subsides are applied on the inner wall of driping irrigation pipe, this kind of SMD flat water dropper is for moulding plastics by Polyethylene (PE) material and makes a holistic rectangular plate body, the one end of rectangular plate body is equipped with the inlet opening, the other end is equipped with the square groove with the outlet opening looks adaptation of driping irrigation pipe, be equipped with the labyrinth runner on the top panel of rectangular plate body, the inner wall installation of driping irrigation pipe is hugged closely to the top panel of rectangular plate body, the water inlet and the inlet opening of labyrinth runner are connected, the delivery port and the square groove intercommunication of labyrinth runner. During the use, the roof panel that will have the rectangular plate body of maze runner pastes and tightly drips irrigation the inside pipe wall pressure welding and fixes, beats the water outlet with the corresponding position of square groove on the pipe wall of driping irrigation the pipe, like this, drips irrigation intraductal flowing water and gets into the maze runner through the water inlet and steps down, flows out from driping irrigation pipe wall apopore through square groove again. The patch type flat dripper has the following defects: because the dripper is made of single hard plastic, the labyrinth flow channel is fixed, and the water outlet flow cannot be adjusted according to the water supply pressure in the drip irrigation pipe, so that the water outlet quantity is large when the water supply pressure is large, the water outlet quantity is small when the water supply pressure is small, the water outlet quantity is unstable, and the irrigation effect is influenced.
Disclosure of Invention
The invention aims to provide a flow channel variable patch type elastic flat dripper which is simple in structure and convenient to use, is made of an elastic injection molding material into a whole and is applied to the inner wall of a drip irrigation pipe for use, and the flow channel consists of a fixed labyrinth flow channel and a variable flow channel.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the patch type elastic flat dripper with the variable flow channel comprises a dripper body, a water inlet groove, a water outlet groove and the flow channel, wherein two ends of the flow channel are respectively communicated with the water inlet groove and the water outlet groove; the method is characterized in that: the water dropper body is an elastic water dropper body, one end of the top surface of the elastic water dropper body is provided with a water inlet groove, and the other end of the top surface of the elastic water dropper body is provided with a water outlet groove; the flow channel consists of a fixed labyrinth flow channel and a variable flow channel; two rows of fixed labyrinth runner bulges which are arranged in a staggered mode are fixedly arranged in the middle of the top surface of the elastic dripper body, and a gap between the two rows of fixed labyrinth runner bulges is a fixed labyrinth runner; the middle part of the bottom surface of the elastic dripper body is provided with a pressure deformation sheet, cavities between the top wall of the pressure deformation sheet and the raised bottom walls of all the fixed labyrinth runners are variable runners, the variable runners are positioned below the fixed labyrinth runners, and the fixed labyrinth runners are communicated with the variable runners; the front ends of the fixed labyrinth flow passage and the variable flow passage are communicated with the water inlet groove, and the rear ends of the fixed labyrinth flow passage and the variable flow passage are communicated with the water outlet groove; the elastic dripper body, the pressure deformation sheet and the fixed labyrinth runner bulge are all integrally formed by injection molding of an elastic dripper injection molding material at one time.
The middle part of the bottom surface of the elastic dripper body is provided with a groove which is positioned below the pressure deformation sheet.
The bottom through hole of the water inlet tank is provided with a filter screen, and the filter screen and the elastic dripper body are integrally molded by injection.
The elastic dripper injection molding material is prepared by blending and melting a thermoplastic elastomer (SEBS), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA) and a 1010 type antioxidant according to a weight ratio, wherein the thermoplastic elastomer (SEBS): 40% -45%; polypropylene ethylene (PP): 40% -45%; ethylene-vinyl acetate copolymer (EVA): 14.5% -14.8%; type 1010 antioxidant: 0.2% -0.5%.
The invention also aims to provide the elastic dripper injection molding material which is easy to manufacture, simple in process, low in production cost and recyclable, and a flow channel on the manufactured patch type elastic flat dripper can deform according to the water supply pressure.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the elastic dripper injection molding material is characterized in that: the material is prepared by blending and melting a thermoplastic elastomer (SEBS), polypropylene ethylene (PP), ethylene-vinyl acetate copolymer (EVA) and a 1010 type antioxidant according to weight ratio, wherein the thermoplastic elastomer (SEBS): 40% -45%; polypropylene ethylene (PP): 40% -45%; ethylene-vinyl acetate copolymer (EVA): 14.5% -14.8%; type 1010 antioxidant: 0.2% -0.5%.
The invention has the beneficial effects that: the drip irrigation pipe is simple in structure and convenient to use, is made of an elastic injection molding material into a whole and is pasted on the inner wall of the drip irrigation pipe for use, the flow channel consists of a fixed labyrinth flow channel and a variable flow channel, the water outlet flow is timely adjusted according to the water supply pressure, the water outlet flow is kept relatively stable, and the irrigation effect is improved; and the production cost is low, the waste water can be recycled, and the environmental pollution is reduced.
Drawings
FIG. 1 is a schematic top view of the structure of the present invention;
FIG. 2 is a schematic bottom view of the structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention taken along line B-B of FIG. 1;
FIG. 4 is an enlarged schematic sectional view taken along the line A-A in FIG. 1.
In the figure: 1. an elastic dripper body; 2. a water inlet groove; 3. a water outlet groove; 4. filtering with a screen; 5. fixing a labyrinth flow passage; 6. a pressure deformable sheet; 7. a groove; 8. a variable flow path; 9. fixing the labyrinth flow channel protrusion.
Detailed Description
The present invention was made with reference to fig. 1, 2, 3, and 4.
The patch type elastic flat dripper with the variable flow channel comprises a dripper body, a water inlet groove 2, a water outlet groove 3 and the flow channel, wherein two ends of the flow channel are respectively communicated with the water inlet groove 2 and the water outlet groove 3; the method is characterized in that: the water dropper comprises a water dropper body and is characterized in that the water dropper body is an elastic water dropper body 1, a water inlet groove 2 is formed in one end of the top surface of the elastic water dropper body 1, and a water outlet groove 3 is formed in the other end of the top surface of the elastic water dropper body 1; the flow channel consists of a fixed labyrinth flow channel 5 and a variable flow channel 8; two rows of fixed labyrinth flow channel bulges 9 which are arranged in a staggered mode are fixedly arranged in the middle of the top surface of the elastic dripper body 1, a gap between the two rows of fixed labyrinth flow channel bulges 9 is a fixed labyrinth flow channel 5, and after the fixed labyrinth flow channel bulges are attached to the inner wall of a drip irrigation pipe, the top surfaces of the fixed labyrinth flow channel bulges 9 can be bonded on the inner wall of the drip irrigation pipe, so that the fixed labyrinth flow channel 5 between the two rows of fixed labyrinth flow channel bulges 9 is fixed and cannot deform; the middle part of the bottom surface of the elastic dripper body 1 is provided with a pressure deformation sheet 6, cavities between the top wall of the pressure deformation sheet 6 and the bottom walls of all the fixed labyrinth runner bulges 9 are variable runners 8, and the variable runners 8 are positioned below the fixed labyrinth runners 5 and are communicated with each other; the front ends of the fixed labyrinth flow passage 5 and the variable flow passage 8 are communicated with the water inlet groove 2, and the rear ends of the fixed labyrinth flow passage 5 and the variable flow passage 8 are communicated with the water outlet groove 3.
The middle part of the bottom surface of the elastic dripper body 1 is provided with a groove 7, the groove 7 is positioned below the pressure deformation sheet 6, the groove 7 plays a role of weight reduction and also enables the pressure deformation sheet 6 to be thinned, so that the sensitivity degree of water supply pressure in a drip irrigation pipe is improved, when the pressure deformation sheet 6 is deformed maximally under the action of water pressure, the top surface of the pressure deformation sheet 6 can be attached to the bottom wall of the two rows of fixed labyrinth runner bulges 9, and the variable runner 8 is completely closed.
The bottom through hole of the water inlet tank 2 is provided with a filter screen 4 to block large granular substances in water and prevent the blockage of a flow channel.
The elastic dripper body 1, the pressure deformation sheet 6, the fixed labyrinth runner bulge 9 and the filter screen 4 are all integrally formed by injection molding of an elastic dripper injection molding material at one time.
The elastic dripper injection molding material is prepared by blending and melting a thermoplastic elastomer (SEBS), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA) and a 1010 type antioxidant according to a weight ratio, wherein the thermoplastic elastomer (SEBS): 40% -45%; polypropylene ethylene (PP): 40% -45%; ethylene-vinyl acetate copolymer (EVA): 14.5% -14.8%; type 1010 antioxidant: 0.2% -0.5%.
According to the formula combination, all the components are fully mixed, granulated by an extruder and subjected to one-time injection molding by an injection molding machine to prepare the patch type elastic flat dripper with the variable flow channel.
When the drip irrigation pipe is installed, the surface-mounted elastic flat dripper with the variable flow channel is attached to the inner wall of the drip irrigation pipe, and the pipe wall of the drip irrigation pipe corresponding to the water outlet groove 3 is perforated to form a water outlet hole. When in use, the drip irrigation pipe is connected with a water supply pipeline, water in the drip irrigation pipe flows into the water inlet groove 2 from a through hole at the bottom of the water inlet groove 2, then flows into the fixed labyrinth flow channel 5 and the variable flow channel 8 at the same time, then flows into the water outlet groove 3, and finally flows out from a water outlet hole on the drip irrigation pipe; when the water pressure in the drip irrigation pipe changes, water can extrude the pressure deformation sheet 6 from the groove 7, so that the pressure deformation sheet 6 approaches to the fixed labyrinth runner bulge 9, the variable runner 8 deforms, the water flow speed in the variable runner 8 is controlled, and the purpose of controlling the water outlet flow according to the water inlet pressure is achieved.
Claims (5)
1. A patch type elastic flat dripper with a variable flow channel comprises a dripper body, a water inlet groove (2), a water outlet groove (3) and a flow channel, wherein two ends of the flow channel are respectively communicated with the water inlet groove (2) and the water outlet groove (3); the method is characterized in that: the water dropper comprises a water dropper body, a water inlet groove (2) and a water outlet groove (3), wherein the water dropper body is an elastic water dropper body (1), one end of the top surface of the elastic water dropper body (1) is provided with the water inlet groove (2), and the other end of the top surface of the elastic water dropper body (1) is provided with the water outlet groove (3); the flow channel consists of a fixed labyrinth flow channel (5) and a variable flow channel (8); two rows of fixed labyrinth runner bulges (9) which are arranged in a staggered way are fixedly arranged in the middle of the top surface of the elastic dripper body (1), and a gap between the two rows of fixed labyrinth runner bulges (9) is a fixed labyrinth runner (5); the middle part of the bottom surface of the elastic dripper body (1) is provided with a pressure deformation sheet (6), cavities between the top wall of the pressure deformation sheet (6) and the bottom walls of all the fixed labyrinth runner bulges (9) are variable runners (8), the variable runners (8) are positioned below the fixed labyrinth runners (5), and the fixed labyrinth runners (5) are communicated with the variable runners (8); the front ends of the fixed labyrinth flow passage (5) and the variable flow passage (8) are communicated with the water inlet groove (2), and the rear ends of the fixed labyrinth flow passage (5) and the variable flow passage (8) are communicated with the water outlet groove (3); the elastic dripper body (1), the pressure deformation sheet (6) and the fixed labyrinth runner bulge (9) are all formed into a whole by injection molding of an elastic dripper injection molding material at one time.
2. The patch type elastic flat dripper with a variable flow passage of claim 1, wherein: the middle part of the bottom surface of the elastic dripper body (1) is provided with a groove (7), and the groove (7) is positioned below the pressure deformation sheet (6).
3. The patch type elastic flat dripper with a variable flow passage of claim 1, wherein: the bottom through hole of the water inlet groove (2) is provided with a filter screen (4), and the filter screen (4) and the elastic dripper body (1) are integrally molded.
4. The patch type elastic flat dripper with a variable flow passage of claim 1, wherein: the elastic dripper injection molding material is prepared by blending and melting a thermoplastic elastomer (SEBS), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA) and a 1010 type antioxidant according to a weight ratio, wherein the thermoplastic elastomer (SEBS): 40% -45%; polypropylene ethylene (PP): 40% -45%; ethylene-vinyl acetate copolymer (EVA): 14.5% -14.8%; type 1010 antioxidant: 0.2% -0.5%.
5. An elastic dripper injection molding material is characterized in that: the material is prepared by blending and melting a thermoplastic elastomer (SEBS), polypropylene ethylene (PP), ethylene-vinyl acetate copolymer (EVA) and a 1010 type antioxidant according to weight ratio, wherein the thermoplastic elastomer (SEBS): 40% -45%; polypropylene ethylene (PP): 40% -45%; ethylene-vinyl acetate copolymer (EVA): 14.5% -14.8%; type 1010 antioxidant: 0.2% -0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011547534.8A CN112470881A (en) | 2020-12-24 | 2020-12-24 | Flow-channel-variable patch type elastic flat dripper and elastic dripper injection molding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011547534.8A CN112470881A (en) | 2020-12-24 | 2020-12-24 | Flow-channel-variable patch type elastic flat dripper and elastic dripper injection molding material |
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| CN112470881A true CN112470881A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011547534.8A Pending CN112470881A (en) | 2020-12-24 | 2020-12-24 | Flow-channel-variable patch type elastic flat dripper and elastic dripper injection molding material |
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| CN (1) | CN112470881A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155489A1 (en) * | 2022-02-21 | 2023-08-24 | 西北农林科技大学 | Ceramic plastic patch-type underground drip tape assembly line |
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2020
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