A flexible pipe for greenhouse drip irrigation

By designing the hanging part, thickened area, and buffer airbag structure of the flexible pipe for greenhouse drip irrigation, the problems of poor anti-sagging ability and insufficient pressure bearing capacity of the flexible pipe were solved, achieving stable installation of the flexible pipe and smooth water flow, extending service life and reducing the risk of breakage.

CN224419541UActive Publication Date: 2026-06-30JINAN FENGHE ZHIYUAN WATER-SAVING IRRIGATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINAN FENGHE ZHIYUAN WATER-SAVING IRRIGATION CO LTD
Filing Date
2025-04-16
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing flexible greenhouse drip irrigation pipes have poor anti-sagging ability, are easy to fold, have limited pressure resistance, and are prone to breakage under water pressure fluctuations, affecting service life and water flow stability.

Method used

A flexible pipe for greenhouse drip irrigation has been designed, including an integrated tubular structure body and a hanging part. The hanging part is provided with hanging holes. The pipe body is provided with a thickened area and a joint opening in the area away from the hanging part. The inner wall is provided with a raised structure. A multi-purpose joint can be installed with a buffer airbag. It is suspended and installed through the hanging part to avoid fixed bending, and the water flow is stabilized by the thickened area and the buffer airbag.

Benefits of technology

It improves the sag resistance and load-bearing capacity of flexible pipes, extends service life, stabilizes water flow, reduces the risk of turbulence damage to the pipe body, and ensures the smoothness of water flow and the reliability of the system.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a flexible pipe for greenhouse drip irrigation, comprising an integrated tubular structure body and a hanging part. The hanging part is located outside the tubular structure body and has several hanging holes. The tubular structure body has several joint openings in the area away from the hanging part. The area of ​​the tubular structure body away from the hanging part has a first thickened area, and the joint openings are located in the first thickened area. The hanging part has a sheet-like structure, and a second thickened area is provided at the junction of the tubular structure body and the hanging part. This utility model can prevent the tubular structure body from bending and helps the tubular structure body maintain stability over long distances, resulting in smooth water flow and a long service life.
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Description

Technical Field

[0001] This utility model belongs to the field of agricultural irrigation water conveyance structure technology, and specifically relates to a flexible pipe for greenhouse drip irrigation. Background Technology

[0002] Traditional open-field farming is highly susceptible to natural climate conditions, with frequent occurrences of low temperatures, torrential rains, droughts, and rampant pests and diseases, severely impacting crop yields and quality and significantly compromising the stability of agricultural product supply. Greenhouse cultivation technology has emerged to address this issue. By covering crops with highly translucent plastic film or glass, greenhouses can effectively collect and retain solar energy, raising the internal temperature and creating a warm growing environment for crops during the cold season. This breaks down geographical and seasonal limitations, allowing crops that previously could only grow in specific times and regions to be cultivated in a wider range of times and spaces.

[0003] Traditional surface irrigation methods, such as flood irrigation, have revealed numerous drawbacks in greenhouse environments. On the one hand, flood irrigation wastes a significant amount of water, with substantial evaporation and seepage, resulting in low water utilization and excessive humidity within the greenhouse, creating conditions conducive to pest and disease growth. On the other hand, surface irrigation can lead to soil compaction, damaging soil structure and affecting crop root respiration and nutrient absorption, thereby reducing crop yield and quality. Therefore, drip irrigation and sprinkler irrigation have become common methods for greenhouse irrigation. Hanging irrigation is one such method, cleverly avoiding ground-level work areas by suspending irrigation pipes from the greenhouse ceiling. This saves valuable planting space and allows for more flexible irrigation system layout. This method allows for precise adjustment of sprinkler or dripper positions based on crop layout and water requirements, achieving precise irrigation, effectively improving water resource utilization, reducing greenhouse humidity, and decreasing the likelihood of pests and diseases.

[0004] Existing hanging irrigation pipes are divided into two types: rigid pipes and flexible pipes. Among them, flexible pipes are popular among users due to their light weight, ability to be rolled up, and ease of use, and are widely used in agricultural irrigation. However, existing flexible pipes still have the following shortcomings in use: Flexible pipes are usually fixed at certain intervals using hooks or other components. Because of their light weight, flexible pipes have poor resistance to sagging, and defects such as creases are prone to appear at the hook fixing points, which not only affect their service life but also have a certain impact on water flow. Furthermore, flexible pipes have limited pressure resistance under fluctuating water pressure, and sudden pressure changes can even cause the pipe body to rupture.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a flexible pipe for greenhouse drip irrigation, thereby overcoming the defects in the prior art.

[0007] To achieve the above objectives, this utility model provides a flexible pipe for greenhouse drip irrigation, comprising an integrated tubular structure body and a hanging part. The hanging part is located outside the tubular structure body and has several hanging holes. The tubular structure body has several joint openings in the area away from the hanging part.

[0008] Furthermore, as a preferred embodiment, the thickness of the hanging part is 1.5-2 times the wall thickness of the tubular structure main body.

[0009] Furthermore, as a preferred embodiment, the tubular structure body has a first thickened area in the region away from the hanging part, and the joint opening is located in the first thickened area.

[0010] Furthermore, as a preferred embodiment, the hanging part has a sheet-like structure, and a second thickened area is provided at the junction of the tubular structure body and the hanging part.

[0011] Furthermore, as a preferred embodiment, the tubular structure body is also provided with several multi-purpose joints.

[0012] Furthermore, as a preferred embodiment, the multi-purpose connector is provided with a buffer airbag.

[0013] Furthermore, as a preferred embodiment, the inner wall of the tubular structure body is provided with a plurality of protruding structures.

[0014] Furthermore, as a preferred embodiment, the protrusions are distributed at an angle.

[0015] Furthermore, as a preferred embodiment, the tubular structure body and the hanging part are manufactured using an integrated injection molding process.

[0016] Furthermore, as a preferred embodiment, the flexible pipe is suspended inside the greenhouse via a hanging part.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model features a hanging part independent of the tubular structure main body. The flexible tube is installed into the greenhouse through the hanging part, eliminating the need for fixing to the tubular structure main body and preventing the tubular structure main body from bending.

[0019] The hanging part of this utility model has a certain thickness, which can ensure the hanging load-bearing capacity and help the tubular structure body to remain stable over long distances;

[0020] This utility model is provided with a first thickened area and a second thickened area, which can extend the service life of the flexible tube;

[0021] This utility model also includes several multi-purpose connectors, on which buffer airbags can be installed. The buffer airbags can alleviate the water pressure inside the tubular body, maintain a stable water flow, and prevent water pressure fluctuations from causing damage to the pipe body.

[0022] The inner wall of the tubular structure of this utility model is provided with a protruding structure, which enhances the strength of the flexible tube and can play a shearing buffering role for the internal water flow, reducing the risk of turbulence damaging the tube. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a flexible pipe for greenhouse drip irrigation according to Embodiment 1 of this utility model;

[0024] Figure 2 This is a partially enlarged structural diagram of a flexible pipe for greenhouse drip irrigation according to Embodiment 1 of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of a flexible pipe for greenhouse drip irrigation in another embodiment of the present invention;

[0026] Figure 4 This is a front view of a flexible pipe for greenhouse drip irrigation in another embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the inner wall structure of a flexible pipe for greenhouse drip irrigation in another embodiment of the present invention;

[0028] Reference numerals: 1-Tube-shaped main body, 101-Joint opening, 102-First thickened area, 103-Multi-purpose connector, 104-Buffer airbag, 105-Protruding structure, 2-Hanging part, 201-Hanging hole, 202-Second thickened area. Detailed Implementation

[0029] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0030] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0031] Example 1:

[0032] like Figures 1-2As shown, a flexible pipe for greenhouse drip irrigation includes an integral tubular structure body 1 and a hanging part 2. The hanging part 2 is located outside the tubular structure body 1 and has a plurality of hanging holes 201. The tubular structure body 1 is provided with a plurality of joint openings 101 in the area away from the hanging part 2.

[0033] In this embodiment, as a specific solution, steel wire ropes are used for installation from the hanging hole 201, eliminating the need for hooks or other components to install it onto the tubular structure body 1. This avoids problems such as the tubular structure body 1 being squeezed and bent at the installation position.

[0034] In this embodiment, as a specific solution, the thickness of the hanging part 2 is 1.5-2 times the wall thickness of the tubular structure body 1; at this thickness, the hanging part 2 can have a certain hanging bearing capacity, and at the same time, it can also make the tubular structure body 1 have a certain stiffness when unfolded.

[0035] In this embodiment, as a specific solution, the tubular structure body 1 is provided with a first thickened area 102 in the area away from the hanging part 2, and the joint opening 101 is opened in the first thickened area 102; the first thickened area 102 and the tubular structure body 1 are integrally formed, and the joint opening 101 is used to install the micro-spraying joint; the thickening treatment has a certain reinforcing effect on the area of ​​the joint opening, preventing the area from becoming a weak part due to the weight of water and the joint opening.

[0036] In this embodiment, as a specific solution, the hanging part 2 has a sheet-like structure, and a second thickened area 202 is provided at the junction of the tubular main body 1 and the hanging part 2; similarly, this thickening has a reinforcing effect on the junction, and the two thickening treatments make it so that there are no obvious weak areas in the whole, which can extend the service life of the flexible tube.

[0037] In another preferred embodiment, as a specific solution, such as Figures 3-4 As shown, the tubular structure body 1 is also provided with a number of multi-purpose connectors 103; the density of the multi-purpose connectors 103 is much smaller than the density of the connector openings 101. The multi-purpose connectors 103 can be used to install the buffer airbag 104, and can also be used as a backflush interface.

[0038] In this embodiment, as a more specific solution, a buffer airbag 104 is pre-installed on the multi-purpose connector 103. The buffer airbag 104 can be connected to the multi-purpose connector 103 via a one-way valve. This one-way valve is a gas-phase and liquid-phase one-way valve, which allows the water flow in the tubular structure body 1 to be compressed towards the buffer airbag 104, while the air in the buffer airbag 104 flows in the opposite direction into the tubular structure body 1. This one-way valve is existing technology and will not be described in detail here. With the setting of the buffer airbag 104, when the water pressure in the tubular structure body 1 fluctuates, the pressure can be buffered and released, avoiding damage to the flexible pipe caused by turbulence. The buffer airbag 104 can be checked periodically for leakage, as well as the sealing of the connection with the multi-purpose connector 103.

[0039] In this embodiment, as a more specific solution, the buffer airbag 104 can be fixed to the outer wall of the tubular structure body 1 with adhesive to reduce the large swaying caused by wind force, thereby affecting the buffering effect.

[0040] In this embodiment, as a more specific solution, when the water inside the tubular structure body 1 needs to be drained when not in use, the buffer airbag 104 can be removed, and a water pipe can be connected to the multi-purpose connector 103 to backflush and drain the water inside the tubular structure body 1.

[0041] In another preferred embodiment, as a specific solution, such as Figure 5 As shown, the inner wall of the tubular structure body 1 is provided with a plurality of protrusions 105; the protrusions 105 are distributed at an angle; while reinforcing the tubular structure body 1, the protrusions 105 can also shear the water flowing through the tubular structure body 1, reducing the risk of damage to the flexible pipe caused by turbulence.

[0042] In this embodiment, as a specific solution, the tubular structure body 1 and the hanging part 2 are made by an integral injection molding process; wherein the first thickened area 102, the second thickened area 202 and the protruding structure 105 are all formed in the integral injection molding process.

[0043] The working principle of this utility model is as follows:

[0044] In use, the tubular structure body 1 is installed into the greenhouse through the hanging hole 201 using a steel wire rope; the nozzle component is then installed at the joint opening 101.

[0045] The structural design of this utility model has the following advantages:

[0046] 1. This utility model has a hanging part that is independent of the main tubular structure. The flexible tube is installed into the greenhouse through the hanging part, without the need for fixing to the main tubular structure, which can avoid bending of the main tubular structure.

[0047] 2. The hanging part of this utility model has a certain thickness, which can ensure the hanging load-bearing capacity and help the tubular structure body to remain stable over long distances;

[0048] 3. This utility model is provided with a first thickened area and a second thickened area, which can extend the service life of the flexible tube;

[0049] 4. This utility model is also provided with several multi-purpose connectors, on which buffer airbags can be installed. The buffer airbags can relieve the water pressure inside the tubular body, maintain a stable water flow, and avoid damage to the pipe body caused by water pressure fluctuations.

[0050] 5. The inner wall of the tubular structure of this utility model is provided with a protruding structure, which enhances the strength of the flexible pipe and can play a shearing buffering role for the internal water flow, reducing the risk of turbulence damaging the pipe body.

[0051] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A flexible pipe for greenhouse drip irrigation, characterized in that: It includes an integral tubular structure body and a hanging part. The hanging part is located outside the tubular structure body and has several hanging holes. The tubular structure body has several joint openings in the area away from the hanging part. The thickness of the hanging part is 1.5-2 times the wall thickness of the tubular structure. The tubular structure body has a first thickened area in the region away from the hanging part, and the joint opening is opened in the first thickened area. The first thickened area and the tubular structure body are integrally formed. The hanging part has a sheet-like structure, and a second thickened area is provided at the junction of the tubular structure body and the hanging part.

2. The flexible pipe for greenhouse drip irrigation according to claim 1, characterized in that: The tubular structure body is also provided with several multi-purpose joints.

3. The flexible pipe for greenhouse drip irrigation according to claim 2, characterized in that: The multi-purpose connector is equipped with a buffer airbag.

4. The flexible pipe for greenhouse drip irrigation according to claim 1, characterized in that: The inner wall of the tubular structure body is provided with several protruding structures.

5. A flexible pipe for greenhouse drip irrigation according to claim 4, characterized in that: The protruding structures are distributed at an angle.

6. A flexible pipe for greenhouse drip irrigation according to claim 1, characterized in that: The tubular structure and the hanging part are made by an integrated injection molding process.

7. A flexible pipe for greenhouse drip irrigation according to claim 1, characterized in that: The flexible pipe is suspended inside the greenhouse via a hanging device.