A secondary plastic anti-clogging drip irrigation pipe with inner tube sewing thread covered with turbulent belt

Abstract

The invention discloses a secondary plastic anti-clogging seepage drip irrigation pipe with an inner tube sewing thread pasted on a turbulent belt, which relates to the technical field of agricultural irrigation, including a composite inner tube and an outer tube, wherein the inner layer and the outer layer of the composite inner tube are elastic materials, the middle layer is tough material, a seepage line is sewn on the composite inner tube, a turbulent belt is arranged between the seepage line and the outer tube, a turbulent flow channel is provided on one side of the turbulent belt pasted on the composite inner tube, and a slit is arranged on the outer tube, and the depth of the slit runs through the outer tube and the turbulent belt. The sewing seepage line of the invention has a seepage function and plays a filtering role. When there is water pressure, water is easy to seep out and is not easy to be blocked by scaling. The seepage drip irrigation pipe of the invention has a uniform flow rate when supplying water, the outer layer material is elastic, and the outer layer and the turbulent belt cut out water slits, which are well bridged when there is no internal pressure to discharge water, and effectively prevent the water outlet from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural irrigation, in particular to a secondary plastic anti-clogging drip irrigation pipe with an inner tube sewing thread coated with a turbulent flow belt. Background Art

[0002] Drip irrigation is one of the most effective fertilization and irrigation technologies for farmland irrigation so far. It is characterized by a small water outlet and a tiny dripper flow rate to evenly and slowly supply water to crops, which can effectively improve the efficiency of irrigation water utilization. Now, the underground infiltration irrigation of water, fertilizer, medicine and gas is gradually being promoted. The underground infiltration irrigation pipe is buried underground, which is beneficial for large areas and can be used all year round, and the energy-saving, environmental protection and production-increasing effects are more obvious.

[0003] The primary problem that needs to be solved in underground seepage irrigation is the easy blockage of seepage drip irrigation pipes. The existing seepage drip irrigation pipes are prone to accumulate fine sand after being used for a long time, and the fine sand is easy to block the dripper and the turbulent flow channel. Therefore, it is necessary to design a seepage drip irrigation pipe that is not easy to be blocked. Summary of the invention

[0004] The purpose of the present invention is to provide a compensating secondary plastic-coated anti-clogging drip irrigation pipe with inner tube sewing thread to address the defects in the prior art.

[0005] To achieve the above-mentioned object of the invention, the technical solution of the present invention is as follows:

[0006] A secondary plastic anti-clogging drip irrigation pipe with an inner tube sewing line covered with a turbulence belt, comprising a composite inner tube and an outer tube, the inner layer and the outer layer of the composite inner tube are made of elastic material, the middle layer is made of tough material, a plurality of seepage lines are sewn on the composite inner tube, a turbulence belt is provided between the seepage lines and the outer tube, a turbulence channel is opened on one side of the turbulence belt that is attached to the composite inner tube, a slit is provided on the outer tube, and the depth of the slit penetrates the outer tube and the turbulence belt.

[0007] Furthermore, the elastic material includes LDPE, LLDPE, EVA, TPE; and the tough material includes HDPE.

[0008] Furthermore, the seepage lines are sewn at intervals or in a straight line.

[0009] Furthermore, the turbulent zone is arranged on the outer wall of the composite inner tube, and its range at least covers the water seepage line.

[0010] Furthermore, the cutting seam and the sewing water seepage line are arranged at intervals.

[0011] The present invention has the following beneficial effects:

[0012] 1. The seepage line of the present invention has a seepage function, plays a role in water quality filtering, and can also adjust the water output. It is not easy to scale and clog, and does not require a built-in dripper, thereby solving the problems in the prior art.

[0013] 2. The outside of the seepage line is wrapped with a turbulent belt, which can play a role in secondary turbulence and water supply compensation.

[0014] 3. The present invention has a simple structure and does not require a built-in dripper mold, so it can be formed in one step, saving costs, and is easy to mass produce and apply over a large area, which is helpful for the construction of high-standard farmland. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a side view structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention along the A-A' direction.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Composite inner tube; 101. Seepage line; 102. Outer layer; 103. Middle layer; 104. Inner layer; 2. Turbulence zone; 201. Pattern; 202. Turbulence channel; 3. Outer tube; 301. Cutting seam. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicate directions or positional relationships and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, and therefore cannot be understood as limiting the present invention.

[0022] The accompanying drawings are specific embodiments of the present invention. Figure 1As shown, a secondary plastic anti-clogging drip irrigation pipe with an inner tube sewing thread covering a turbulent belt includes a composite inner tube 104 and an outer tube 102. The composite inner tube 1 adopts an ABA structure, the inner layer 104 and the outer layer 102 are elastic materials, and the middle layer 103 is a tough material. The elastic materials of the inner layer 104 and the outer layer 102 can be LDPE, LLDPE, EVA, TPE, and the tough material of the middle layer 103 can be HDPE. This material is tough and can play a role in the compression of the pipe. The use of this material can reduce the wall thickness of the pipe accordingly. The entire drip irrigation pipe body can also be made of soft PVC material. The composite inner tube is sewn with a seepage line 101, which is a twisted line made of chemical fiber material. Because the gaps on the twisted line have a seepage function, it also has anti-corrosion and anti-aging effects. A turbulent belt 2 is provided between the seepage line 101 and the outer tube 3. A turbulent flow channel 202 is provided on one side of the turbulent belt 2 that is attached to the composite inner tube. A slit 301 is provided on the outer tube 3. The depth of the slit runs through the outer tube 3 and the turbulent belt 2. The seepage line is sewn on the composite inner tube 1. The inner and outer layers of the composite inner tube 1 are elastic materials. Therefore, it is easy to thread the sewing machine. The seam is well closed, which can make the sewing needle eye close. The wall of the composite inner tube 1 and the seepage line are tightly combined. There is no extra gap between the seepage line 101 and the composite inner tube 1. The water flow in the composite inner tube 1 can seep out from the seepage line 1. Under the action of water pressure, the seepage can filter fine sediment and regulate the water output. The turbulent belt 2 is attached to the composite inner tube 1 and at least covers the seepage line 101. It can be a turbulent belt 2 attached to the composite inner tube 1 body where the seepage line 101 is located, or it can completely wrap the composite inner tube 1.

[0023] One embodiment of the present invention is to sew seepage lines 101 at intervals on the composite inner tube 1, which is suitable for seepage irrigation pipes with small water flow. Sewing a number of needles every several centimeters is beneficial to controlling the water flow and achieving the effect of preliminary turbulence. The attached figure shows the seepage lines 101 sewn at intervals, and two groups are sewn.

[0024] Another embodiment of the present invention is to sew a seepage line 101 linearly on the composite inner tube 1, which is suitable for a seepage drip irrigation pipe with a large water flow rate. When this embodiment is adopted, the slit 301 needs to be located at the interval of the seepage line 101.

[0025] The production process and method of the present invention is to extrude the materials required for the composite inner tube with an extruder, and use two extruders to extrude materials of different materials for composite application to obtain a composite inner tube 1. After the composite inner tube 1 is vacuum sized and cooled to form, it is threaded and sewn with a seepage line 101 by an automatic sewing machine. The automatic sewing machine can select straight line sewing or interval sewing. The needle of the sewing machine is the same thickness as the seepage line 101. In this way, the seepage turbulence effect is good and the filtering effect is good. Through experiments, the sand content of muddy water in this method is about 5%, and it is not easy to be blocked after repeated use. The seepage drip irrigation pipe made by this method does not require multi-layer water filtration, can reduce the filtration level, reduce the project cost, and can also solve the problem that the dripper and the water outlet turbulence channel 202 of other forms of product structures are easy to be blocked and the water quality requirements are too high. After the composite inner tube 1 is sewn and threaded, an extruder extrude a turbulent belt 2 with a turbulent channel 202 pressed out by a pattern roller. The pattern 201 can be a variety of design patterns and is attached to the composite inner tube 1. After completely wrapping the threaded tube body, the whole is passed through a traction machine and towed to the next extruder for wrapping the outer tube 3. The outer tube is preferably made of PE, and LLDPE, LDPE, EVA, TPE mixed materials or other materials can be used. After being sized by a pipe sizing sleeve, it enters a cooling water tank for cooling and forming, and is longitudinally slit by a slitting machine to obtain the infiltration drip irrigation pipe of the present invention.

[0026] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to specific implementation methods.

Claims

1. A secondary plastic anti-clogging drip irrigation pipe with an inner tube sewing thread covering a turbulent belt, characterized in that: It comprises a composite inner tube and an outer tube, the inner layer and the outer layer of the composite inner tube (1) are made of elastic material, and the middle layer is made of tough material, a plurality of water seepage lines (101) are sewn on the composite inner tube (1), a turbulent flow zone (2) is provided between the water seepage lines (101) and the outer tube (3), a turbulent flow channel (202) is provided on one side of the turbulent flow zone (2) that is in contact with the composite inner tube (1), and a slit (301) is provided on the outer tube (3), and the slit (301) deeply penetrates the outer tube (3) and the turbulent flow zone (2); The above-mentioned drip irrigation pipe is prepared by the following production method, comprising the following steps: using an extruder to extrude the materials required for the composite inner pipe, using two extruders to extrude materials of different materials for composite application, and obtaining a composite inner pipe (1); after the composite inner pipe (1) is vacuum sized and cooled to form, it is threaded and sewn with a seepage line (101) by an automatic sewing machine, and the needle of the sewing machine is the same thickness as the seepage line (101); after the composite inner pipe (1) is sewn and threaded, an extruder extrude a turbulent belt (2) with a turbulent flow channel (202) pressed by a pattern roller, attached to the composite inner pipe (1), and completely wrapped around the threaded pipe body, and then the whole is passed through a traction machine, and is pulled to the next extruder to wrap the outer pipe (3); the outer pipe material is selected as PE, and after being sized by a pipe sizing sleeve, it enters a cooling water tank for cooling and forming, and finally is longitudinally slit by a slitting machine.

2. The secondary plastic anti-clogging drip irrigation pipe with inner tube sewing thread covered with turbulent belt according to claim 1 is characterized by: The elastic material includes one or more of LDPE, LLDPE, EVA, and TPE; and the tough material includes HDPE.

3. The secondary plastic anti-clogging drip irrigation pipe with inner tube sewing thread covered with turbulent belt according to claim 1 is characterized by: The water seepage lines (101) are sewn at intervals or in a straight line.

4. The secondary plastic anti-clogging drip irrigation pipe with inner tube sewing thread covered with turbulent belt according to claim 1, characterized in that: The turbulent zone (2) is arranged on the outer wall of the composite inner tube (1) and at least covers the water seepage line (101).

5. The secondary plastic anti-clogging drip irrigation pipe with inner tube sewing thread covered with turbulent belt according to claim 1 is characterized by: The slit (301) and the water seepage line (101) are arranged at intervals.

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