Agricultural water-saving irrigation device

Abstract

The utility model relates to the field of agricultural irrigation, and discloses an agricultural water-saving irrigation device which comprises a water supply main pipe and irrigation branch pipes. A connecting pipe connected with the irrigation branch pipe is arranged on the water supply main pipe; each irrigation branch pipe is composed of a core pipe and a sleeve, the core pipe is a tubular body with an opening in one end, the opening end of the core pipe is movably and hermetically connected with the connecting pipe in an inserted mode, a piston is arranged at the end, connected with the connecting pipe, of the core pipe, and the core pipe is arranged in the sleeve; a cylinder sleeve is arranged at one end of the sleeve and fixedly connected with the flange plate on the connecting pipe, a plurality of spray irrigation openings and drip irrigation openings are formed in the two sides of the sleeve in a staggered mode respectively, a first through hole and a second through hole are formed in the two sides of the core pipe respectively, and the distance between the first through hole and the second through hole is larger than that between the spray irrigation openings and the drip irrigation openings. Sealing rings are arranged on the two sides of each through hole; the piston is arranged in the cylinder sleeve and controlled by the pipeline control assembly to move left and right in the cylinder sleeve. According to the utility model, automatic switching between a spray irrigation mode and a drip irrigation mode is realized, and the problem of irrigation failure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation, and in particular to an agricultural water-saving irrigation device. Background Technology

[0002] Water-saving irrigation is an agricultural irrigation technology that aims to optimize the use of water resources and reduce water waste. These technologies include various methods such as drip irrigation and sprinkler irrigation, which precisely control the water supply to meet the growth needs of crops.

[0003] Chinese patent application CN201920400819.5, filed on March 27, 2019, discloses an agricultural water-saving irrigation device. The device features a rotatable connection between the sleeve and core tube of its irrigation branch pipe, allowing selection of water flow from either the first irrigation hole or a sprinkler head by rotating the sleeve, thus achieving different irrigation modes. While this irrigation device can switch between sprinkler and drip irrigation, it still has the following drawbacks:

[0004] 1. The irrigation mode needs to be switched by rotating the sleeve at a certain angle. The irrigation device cannot switch modes automatically. It requires manual rotation of the sleeve to switch irrigation modes. However, a set of irrigation devices has a large number of irrigation branch pipes. Manually rotating the sleeve to switch irrigation modes is time-consuming and laborious.

[0005] 2. If the angle of the sleeve rotation cannot be accurately positioned, water may not flow from either the sprinkler or drip irrigation system after the sleeve is rotated, resulting in irrigation failure.

[0006] Based on this, this application provides an agricultural water-saving irrigation device that can automatically switch irrigation modes and provides reliable irrigation to solve the above problems. Utility Model Content

[0007] The present invention aims to solve the technical problems existing in the prior art. Therefore, the present invention provides an agricultural water-saving irrigation device that can automatically switch irrigation modes and provides reliable irrigation.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] An agricultural water-saving irrigation device is provided, comprising a main water supply pipe and a plurality of irrigation branch pipes disposed on one or both sides of the main water supply pipe; the main water supply pipe is provided with a connecting pipe connected to the irrigation branch pipes; the irrigation branch pipe is composed of a core pipe and a sleeve, wherein: the core pipe is a tubular body with one open end, the open end of which is movably and sealingly inserted into the connecting pipe, and a piston is provided at the end of the core pipe connected to the connecting pipe, and the core pipe is disposed inside the sleeve; one end of the sleeve is provided with a cylinder sleeve, which is fixedly connected to a flange plate on the connecting pipe, and a plurality of spray nozzles and drip nozzles are respectively provided on both sides of the sleeve; the core pipe is provided with a first through hole and a second through hole on both sides, the distance between the first through hole and the second through hole is greater than the distance between the spray nozzles and the drip nozzles, and sealing rings are provided on both sides of the first through hole and the second through hole; the piston of the core pipe is disposed inside the cylinder sleeve, and its left and right movement within the cylinder sleeve is controlled by a pipeline control component to achieve switching between aligning the first through hole with the spray nozzle or aligning the second through hole with the drip nozzle.

[0010] In some optional embodiments, the core tube has an annular groove on both the first through hole and the second through hole, and both the first through hole and the second through hole are provided with an annular groove.

[0011] In some alternative embodiments, each annular groove is provided with a plurality of first through holes or a plurality of second through holes.

[0012] In some alternative embodiments, the sealing ring is disposed on both sides of the annular groove.

[0013] In some alternative embodiments, the sprinkler inlet is fitted with a sprinkler head via a gooseneck tube, and the drip inlet is connected to a drip arrow via a hose.

[0014] In some alternative embodiments, the connecting pipe is provided with a regulating valve for adjusting the flow rate.

[0015] In some optional embodiments, the connecting tube, core tube, and sleeve are all rigid tubes.

[0016] In some optional embodiments, the pipeline control assembly includes a first control pipeline, a second control pipeline, a first solenoid valve, a second solenoid valve, a vent pipeline, and a vent valve. The first control pipeline is disposed on a flange plate in communication with the cylinder liner, and the second control pipeline is disposed on the cylinder liner in communication with the cylinder liner. The first solenoid valve is disposed on the first control pipeline, and the second solenoid valve is disposed on the second control pipeline. Both the first and second control pipelines are provided with vent pipelines, and both vent pipelines are provided with vent valves. Both the first and second control pipelines are connected to the liquid supply system.

[0017] In some alternative implementations, both the first control line and the second control line are connected to the main water supply pipe.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model forms a piston-cylinder structure by using the piston of the core tube and the cylinder of the sleeve. The movement of the piston in the piston cylinder can be controlled by the pipeline control component, thereby controlling the movement of the core tube in the sleeve and realizing the switching between sprinkler irrigation and drip irrigation. The precise switching between sprinkler irrigation and drip irrigation can be achieved simply by restricting the movement of the core tube, and there will be no problem of irrigation failure.

[0020] 2. The designed pipeline control components can utilize the pipeline pressure of the main water supply pipe to switch irrigation modes, eliminating the need for additional liquid or gas control systems. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0022] Figure 1 This is a cross-sectional view of the irrigation branch pipe and the water supply main pipe in drip irrigation mode provided by this utility model.

[0023] Figure 2 This is a cross-sectional view of the irrigation branch pipe and the water supply main pipe in sprinkler irrigation mode provided by this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1—Main water supply pipe, 2—Irrigation branch pipe, 2.1—Core pipe, 2.1.1—Piston, 2.1.2—First through hole, 2.1.3—Second through hole, 2.1.4—Annular groove, 2.2—Sleeve, 2.2.1—Cylinder liner, 2.2.2—Sprinkler inlet, 2.2.3—Drip inlet, 3—Connecting pipe, 3.1—Flange plate, 3.2—Regulating valve, 4—Sealing ring, 5—Pipeline control assembly, 5.1—First control pipeline, 5.2—Second control pipeline, 5.3—First solenoid valve, 5.4—Second solenoid valve, 5.5—Drain pipeline, 5.6—Drain valve, 6—Gooseneck pipe, 7—Sprinkler head, 8—Drip arrow. Detailed Implementation

[0026] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first," "second," etc., used in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. The terms "installed," "connected," and "joined" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] Example 1

[0032] As attached Figure 1 Or attached Figure 2 As shown, this embodiment provides an agricultural water-saving irrigation device, including a main water supply pipe 1 and several irrigation branch pipes 2 disposed on one or both sides of the main water supply pipe. The main water supply pipe 1 is provided with connecting pipes 3 that connect to the irrigation branch pipes, and the irrigation branch pipes 2 are connected to the main water supply pipe 1 through the connecting pipes 3. In this embodiment, the irrigation branch pipe 2 is composed of a core pipe 2.1 and a sleeve 2.2, wherein:

[0033] The core tube 2.1 is a tubular body with one open end, which is movably and sealingly inserted into the connecting tube 3. Specifically, the connecting tube is provided with a sealing ring, and one end of the core tube is movably fitted outside the connecting tube, using the sealing ring for sealing. The end of the core tube 2.1 connected to the connecting tube 3 is provided with a piston 2.1.1, and the core tube 2.1 is located inside the sleeve 2.2.

[0034] One end of the sleeve 2.2 is provided with a cylinder sleeve 2.2.1, which is fixedly connected to the flange plate 3.1 on the connecting pipe 3. This design makes the cylinder sleeve and the flange plate form the cylinder body of a piston cylinder. The piston 2.1.1 of the core tube 2.1 is located in the cylinder body. Thus, the core tube, cylinder sleeve and flange plate constitute a piston cylinder. The piston cylinder is controlled by the pipeline control component 5. The left and right movement of the piston is controlled by the pipeline control component, thereby controlling the left and right movement of the core tube in the sleeve.

[0035] The sleeve 2.2 has multiple staggered spray nozzles 2.2.2 and drip nozzles 2.2.3 on both sides. The core tube 2.1 has a first through hole 2.1.2 and a second through hole 2.1.3 on both sides. The distance between the first through hole 2.1.2 and the second through hole 2.1.3 is greater than the distance between the spray nozzles 2.2.2 and the drip nozzles 2.2.3. Both the first through hole 2.1.2 and the second through hole 2.1.3 have sealing rings 4 on both sides to seal the through holes. In this embodiment, the movement of the core tube 2.1 within the sleeve 2.2 can be controlled by the pipeline control component 5 to switch the alignment of the first through hole 2.1.2 with the spray nozzle 2.2.2 or the second through hole 2.1.3 with the drip nozzle 2.2.3, thereby achieving automatic switching between drip irrigation and spray irrigation modes.

[0036] Preferably, in this embodiment, the connecting pipe 3, the core pipe 2.1, and the sleeve 2.2 are all rigid pipes, and the material can be plastic pipe or stainless steel pipe, etc.

[0037] Preferably, in this embodiment, a regulating valve 3.2 for adjusting the flow rate is provided on the connecting pipe 3. The regulating valve is preferably an electric regulating valve, which facilitates the control system to remotely adjust the flow rate.

[0038] When switching specific modes, see the attached document. Figure 1 As shown, this is the drip irrigation mode. When switching to sprinkler irrigation mode, the pipeline control component moves the piston to the right, causing the core tube to move to the right relative to the sleeve, aligning the first through-hole with the sprinkler inlet, while the second through-hole is offset from the drip inlet. Irrigation water in the core tube is then sprayed out from the sprinkler inlet, switching to sprinkler irrigation mode, as shown in the attached diagram. Figure 2 As shown.

[0039] It is worth noting that the pipeline control components are pneumatically or hydraulically controlled pipeline components, and the control methods of cylinders or hydraulic cylinders can be referred to. This technology is a conventional existing technology.

[0040] Example 2

[0041] Based on Example 1, as shown in the appendix Figure 1 As shown, in this embodiment, annular grooves 2.1.4 are provided on the core tube 2.1 at both the first through hole 2.1.2 and the second through hole 2.1.3, and both the first through hole 2.1.2 and the second through hole 2.1.3 are located within the annular grooves 2.1.4. This design ensures that rotation of the core tube during movement will not affect the connection between the first through hole and the sprinkler inlet or the connection between the second through hole and the drip irrigation pipe.

[0042] Preferably, each annular groove 2.1.4 in this embodiment is provided with a plurality of first through holes 2.1.2 or a plurality of second through holes 2.1.3, preferably three.

[0043] Preferably, in this embodiment, the sealing rings 4 on both sides of the first through hole 2.1.2 or the second through hole 2.1.3 are provided on both sides of the annular groove 2.1.4.

[0044] Example 3

[0045] Based on Example 1 or Example 2, as shown in the appendix Figure 1 As shown, in this embodiment, the sprinkler head 7 is installed on the sprinkler inlet 2.2.2 via the gooseneck tube 6. Utilizing the self-adjusting position characteristic of the gooseneck tube, the sprinkler head can be adjusted to any direction or position and maintained effectively. The drip inlet 2.2.3 is connected to the drip arrow 8 via a flexible tube. Specifically, a one-in-two-out or one-in-four-out drip arrow can be used, employing subsurface drip irrigation to effectively reduce water evaporation and loss.

[0046] Example 4

[0047] Based on any of the above embodiments, this embodiment further designs the pipeline control component 5, as shown in the attached figure. Figure 1 Or attached Figure 2 As shown, the pipeline control assembly 5 includes a first control pipeline 5.1, a second control pipeline 5.2, a first solenoid valve 5.3, a second solenoid valve 5.4, a vent pipeline 5.5, and a vent valve 5.6. The first control pipeline 5.1 is connected to the cylinder liner 2.2.1 and is mounted on the flange plate 3.1. The second control pipeline 5.2 is connected to the cylinder liner 2.2.1 and is mounted on the cylinder liner 2.2.1. The first solenoid valve 5.3 is mounted on the first control pipeline 5.1, and the second solenoid valve 5.4 is mounted on the second control pipeline 5.2. Both the first control pipeline 5.1 and the second control pipeline 5.2 are equipped with vent pipelines 5.5, and both vent pipelines 5.5 are equipped with vent valves 5.6. Both the first control pipeline 5.1 and the second control pipeline 5.2 are connected to the liquid supply system.

[0048] Working principle: as shown in the appendix Figure 1The image shows the drip irrigation mode. When switching to sprinkler irrigation mode, see attached... Figure 2 As shown, the first solenoid valve is opened, the second solenoid valve is closed simultaneously, and the drain valve on the second control line is opened. Pressurized liquid from the supply system enters the cylinder through the first control line, pushing the cylinder to the right. Liquid on the right side of the piston inside the cylinder is discharged through the drain line. When it is necessary to switch back to drip irrigation mode, as shown in the attached diagram... Figure 1 As shown, the second solenoid valve is opened and the vent valve on the second control line is closed. At the same time, the first solenoid valve is closed and the vent valve on the first control line is opened. The pressurized liquid from the liquid supply system enters the cylinder through the second control line and pushes the cylinder to the left. The liquid on the left side of the piston in the cylinder is discharged through the vent line.

[0049] Example 5

[0050] Based on Example 4, as shown in the appendix Figure 1 Or attached Figure 2 As shown, in this embodiment, the first control line 5.1 and the second control line 5.2 are both connected to the main water supply line 1. The irrigation mode can be switched by using the pipeline pressure of the main water supply line, without the need to install a separate liquid control or gas control system.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An agricultural water-saving irrigation device, comprising a water supply main pipe and a plurality of irrigation branch pipes arranged on one side or both sides of the water supply main pipe; characterized in that: a connecting pipe is arranged on the water supply main pipe and connected with the irrigation branch pipes; the irrigation branch pipe is composed of a core pipe and a sleeve pipe, wherein: the core pipe is a tubular body with an open end, the open end of the core pipe is movably and sealingly inserted into the connecting pipe, and the end of the core pipe connected with the connecting pipe is provided with a piston, and the core pipe is arranged in the sleeve pipe; one end of the sleeve pipe is provided with a cylinder sleeve which is fixedly connected with a flange plate on the connecting pipe, and the sleeve pipe is provided with a plurality of spray nozzles and drip irrigation nozzles arranged in a staggered manner on both sides thereof, the core pipe is provided with a first through hole and a second through hole on both sides thereof, the distance between the first through hole and the second through hole is greater than the distance between the spray nozzles and the drip irrigation nozzles, and the first through hole and the second through hole are both provided with sealing rings on both sides thereof; the piston of the core pipe is arranged in the cylinder sleeve and controlled by a pipeline control assembly to move left and right in the cylinder sleeve, so as to switch between the alignment of the first through hole with the spray nozzles or the alignment of the second through hole with the drip irrigation nozzles. An annular groove is arranged on the core pipe above the first through hole and the second through hole, and the first through hole and the second through hole are arranged in the annular groove. A plurality of first through holes or a plurality of second through holes are arranged in each annular groove. The sealing rings are arranged on both sides of the annular groove. The spray nozzles are provided with spray heads through goose neck pipes, and the drip irrigation nozzles are connected with drip irrigation arrows through hoses. An adjusting valve for adjusting flow rate is arranged on the connecting pipe.

2. The agricultural water-saving irrigation device according to claim 1, characterized in that: The connecting pipe, the core pipe and the sleeve pipe are all rigid pipes.

3. The agricultural water-saving irrigation device of claim 2, wherein: The pipeline control assembly comprises a first control pipeline, a second control pipeline, a first electromagnetic valve, a second electromagnetic valve, a venting pipeline and a venting valve, the first control pipeline is arranged on the flange plate in communication with the cylinder sleeve, the second control pipeline is arranged on the cylinder sleeve in communication with the cylinder sleeve, the first electromagnetic valve is arranged on the first control pipeline, the second electromagnetic valve is arranged on the second control pipeline, the venting pipeline is arranged on the first control pipeline and the second control pipeline, and the venting valve is arranged on the two venting pipelines, and the first control pipeline and the second control pipeline are connected with a liquid supply system.

4. The agricultural water-saving irrigation device of claim 2, wherein: The first control pipeline and the second control pipeline are connected with the water supply main pipe.

5. The agricultural water-saving irrigation device of claim 1, wherein: ​ 6. The agricultural water-saving irrigation device of claim 1, wherein: ​ 7. The agricultural water-saving irrigation device according to claim 1, characterized in that: ​ 8. The agricultural water-saving irrigation device of claim 1, wherein: ​ 9. The agricultural water-saving irrigation device of claim 8, wherein: ​

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