Irrigation device and irrigation system

Abstract

The present invention provides an irrigation device, comprising a body, wherein the body is surrounded by side walls to form a hollow cylindrical structure, the upper end of the body is opened to form a head, the lower end of the head is a rod, and the side wall of the body is provided with a plurality of water outlet holes penetrating the side wall. The present invention arranges water outlet holes on the side wall of the rod-shaped irrigation device and controls the water flow rate through the flow limiting valve, and then directly inserts the irrigation device into the soil during use, so that the external water source can directly reach the plant root system, greatly improving the root system's water absorption efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural irrigation, and more specifically, to an irrigation device and an irrigation system. Background Art

[0002] Traditional irrigation methods are usually flooding, but this irrigation method requires a lot of water and is not suitable for areas with scarce water resources. In addition, the amount of water cannot be controlled and the requirements for refined management of agricultural production cannot be met. With the development of agricultural irrigation technology, sprinkler and drip irrigation technologies have become more and more popular. This irrigation method has achieved water conservation to a certain extent, but it still has many shortcomings. For example, water still needs to slowly penetrate into the soil from the surface, and most of the water is concentrated in the shallow soil layer, and the plant roots deep in the soil cannot get enough water. Furthermore, surface water is easy to evaporate, which still causes waste of resources.

[0003] In addition, existing irrigation technologies cannot solve the problem of soil ventilation, which is not conducive to plant metabolism. Summary of the invention

[0004] In order to overcome at least one of the defects of the prior art described above, the present invention provides an irrigation device that can directly reach the root system, improve the utilization rate of water resources and promote soil ventilation.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An irrigation device includes a body, wherein the body is surrounded by side walls to form a hollow cylindrical structure, the upper end of the body is open to form a head, the lower end of the head is a rod, and the side wall of the body is provided with a plurality of water outlet holes penetrating the side wall. The water outlet holes can not only conveniently transport water directly to the root system of vegetation to improve the utilization rate of water, but also play the role of allowing the soil to ventilate, thereby realizing the circulation and exchange of gas in the soil with the outside air.

[0007] The bottom end of the rod is a closed end, the head of the body is provided with a water inlet, and a water inlet pipe is provided at the water inlet.

[0008] Furthermore, the water outlet holes are distributed along the periphery of the body or along one or both sides of the body, and the bottom of the body is provided with a wing protruding from the surface of the body to prevent soil from entering the water inlet hole. The distribution of the water outlet holes determines the diffusion direction of the water source in the soil, and also determines the position and depth of the body inserted into the soil. When it is necessary to induce root growth, the body should be far away from the root system and inserted into the root system to a greater depth. In this case, an irrigation device with water outlet holes distributed on one side is preferred.

[0009] In order to accelerate the air convection in the body, the head of the body is provided with a detachable protective cover, and the protective cover is provided with a plurality of air convection holes. When the outside air circulates, negative air pressure will be generated at the protective cover, promoting the convection of air inside and outside the body.

[0010] In order to facilitate the installation and removal of the protective cover, the protective cover is provided with two card interfaces, the inner side of the card interfaces is provided with a protruding buckle position, and the periphery of the head of the irrigation device is provided with a support platform radially outward, and the support platform is provided with two upwardly protruding card blocks, and the card blocks are provided with a lock that can cooperate with the protruding buckle position.

[0011] Furthermore, a force-bearing portion is provided at the top of the protective cover, and the force-bearing portion is a plane.

[0012] In order to facilitate the control of irrigation water volume and achieve refined control, a flow limiting valve connected to the water inlet is provided at the water inlet in the main body.

[0013] Furthermore, the flow limiting valve includes a valve body, which is inserted into the head of the main body. The interior of the valve body is a hollow structure to form a longitudinal air inlet channel. The outer surface of the valve body is provided with a water inlet groove that is connected to the water inlet, and the water inlet groove is fitted with the inner wall of the main body to form a water flow channel.

[0014] Furthermore, the water inlet groove is distributed in a spiral shape along the outer surface of the flow limiting valve until the end of the flow limiting valve, or the water inlet groove is S-shaped. By extending the length of the water inlet groove, the resistance of the water flow can be further increased, so that the water flow slowly flows into the body.

[0015] Preferably, a sealing ring is provided at the top of the valve body and above the water inlet groove to prevent water from overflowing, a handle is provided at the top of the valve body, and a recess is provided in the middle of the handle to prevent blockage of the air inlet channel.

[0016] As another alternative, the flow limiting valve is arranged outside the main body, and the flow limiting valve includes a valve water inlet and a valve water outlet. The valve water inlet is connected to an external water source, and the valve water outlet is connected to a water inlet pipe or a water inlet of the main body.

[0017] Furthermore, the flow limiting valve includes a valve body and a valve cover that are snapped together, the valve water inlet is arranged on the valve cover, the valve water outlet is arranged on the valve body, the valve body and the valve cover form a valve cavity, a sheet-like valve core is arranged in the valve cavity, and a water guide groove is arranged on the inner surface of the valve body close to the valve core, and the water guide groove is connected to the valve water outlet.

[0018] Furthermore, an extension section is provided between the head and the rod.

[0019] The present invention also provides an irrigation system, comprising a water source and a water pipe connected to the water source. The irrigation system also comprises a plurality of the above-mentioned irrigation devices, and the irrigation devices are connected to the water pipe.

[0020] The present invention arranges a water outlet on the side wall of the rod-shaped irrigation device and controls the water flow rate through the flow limiting valve. Then, during use, the irrigation device is directly inserted into the soil so that external water can directly reach the plant root system, greatly improving the root system's water absorption efficiency.

[0021] The water outlet holes on the main body of the present invention can not only be used to transport water, but also promote ventilation of deep soil, accelerate the metabolism of plant roots, and better promote plant growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an exploded view of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the main body of the present invention;

[0024] Figure 3 is a front view of the present invention after assembly;

[0025] Figure 4 is a cross-sectional view of the present invention after assembly;

[0026] Figure 5 It is a structural schematic diagram of the flow limiting valve of the present invention;

[0027] Figure 6 It is a right side view after the present invention is assembled;

[0028] Figure 7 is a top view of the present invention after assembly;

[0029] Figure 8 is a schematic structural diagram of Embodiment 2 of the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the flow limiting valve in Example 2 of the present invention.

[0031] Embodiment 1, 3, 4 Figure numerals:

[0032] Main body 1, head 10, water inlet 11, water inlet pipe 12, water outlet 13, wing 14, clamping block 15, lock 16, reinforcing rib 17, support platform 18, rod 19

[0033] Flow limiting valve 2, valve body 20, air inlet channel 21, water inlet groove 22, handle 23, recess 24, sealing ring 25, protective cover 3, card interface 31, buckle position 32, convection hole 33, force bearing part 34, support member 35

[0034] Embodiment 2 Figure numerals:

[0035] Flow limiting valve 5, valve body 50, valve cover 51, valve water inlet 52, valve water outlet 53, valve core 54, conduit 55 DETAILED DESCRIPTION

[0036] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0037] Example 1

[0038] like Figures 1 to 7 As shown, the present invention relates to an irrigation device, including a body 1, a flow limiting valve 2 and a cover body 3. The body 1 is surrounded by side walls to form a hollow cylindrical structure with a cavity. The upper end of the body 1 is open to form a head 10, the lower end of the head 10 is a rod 19, and the bottom end of the rod 19 is a closed end. The shape of the body 1 can be a hollow triangular prism or a quadrilateral prism or other polygons. In this embodiment, it is preferably a hollow cylindrical shape. The lower end of the body 1 gradually narrows inwards to form a cone so that the rod 19 can be easily inserted into the soil. The length of the body 1 is preferably 10 to 50 cm to adapt to roots of different depths.

[0039] The head 10 of the body 1 is provided with a water inlet 11, and a water pipe connected to an external water source can be inserted into the body 1 through the water inlet 11. In order to facilitate the connection with the external water pipe, a water inlet pipe 12 is also provided at the water inlet 11, and the end of the water inlet pipe 12 is a conical structure, which can facilitate the introduction of the water pipe and prevent the water pipe from being separated. In addition, when the irrigation device needs to be pulled out from the soil, the water inlet pipe 12 can also serve as a force bearing point for the user to pull it out.

[0040] The body 1 is provided with a plurality of water outlet holes 13 penetrating the side wall of the body. Water flows into the body 1 through the water inlet pipe 12 and the water inlet 11 in sequence, and then penetrates into the soil through the water outlet holes 13 provided on the body and is absorbed by the plant roots.

[0041] As a preferred solution, the water holes 13 are distributed from top to bottom along the periphery of the main body 1, and can also be distributed along the left and right sides or one of the sides of the main body 1. Considering the distribution of plant roots in the soil, the number of water holes 13 or the area of ​​water holes 13 in the lower middle part of the main body 1 is greater than the number of water holes 13 or the area of ​​water holes 13 in other areas. This distribution of water holes can ensure that water is absorbed by the plant roots to the maximum extent, and can also ensure that outside air is provided to the area with the most developed root system.

[0042] In order to prevent plant roots from extending into the water outlet 13 and causing blockage that affects the use effect, in this embodiment, the diameter of a single water outlet 13 is preferably 1-2 mm, or the area of ​​a single water outlet 13 is preferably 1.57-3.14 square millimeters.

[0043] In order to facilitate understanding of the depth of the main body 1 inserted into the soil, a scale can also be set on the main body 1. Since the plant root system is hydrotropic, for seedling vegetation, the depth of the main body 1 inserted into the soil can be increased to induce the roots to penetrate into the soil as quickly as possible to complete the planting of the vegetation.

[0044] like Figure 2 As shown, the bottom end of the body 1 is provided with a wing 14 protruding from the surface of the body 1, and the wing is arranged near the water outlet 13 at the bottom to prevent soil particles from entering the body 1 or blocking the water outlet 13 due to the squeezing force of the body 1 on the soil during the insertion of the body 1 into the soil. The wing 14 is preferably arrow-shaped or shield-shaped.

[0045] like Figure 4 , 5 As shown, a flow limiting valve 2 is provided at the water inlet 11 in the body 1, and the flow limiting valve 2 includes a valve body 20, which is inserted into the head 10 of the body 1. The interior of the valve body 20 is a hollow structure, forming a longitudinally penetrating air inlet channel 21, whose shape matches the shape of the cavity formed by the body 1. In this embodiment, since the body 1 is a cylindrical structure, the valve body 20 is also a through hollow cylindrical structure. A water inlet groove 22 is provided on the outer surface of the valve body 20, and the water inlet groove 22 is connected to the water inlet 11. The water inlet groove 22 is spirally distributed along the outer surface of the flow limiting valve 2 until the end of the flow limiting valve 2. The depth of the water inlet groove 22 is generally 0.3-2 mm, preferably 0.5-0.6 mm, the width is generally 0.4-3 mm, preferably 0.6-1 mm, the length is generally 10-35 mm, preferably 13-28 mm, and the cross-sectional area of ​​the water inlet groove 22 is generally 0.12-6 square millimeters, preferably 0.18-0.25 square millimeters. In addition to the spiral distribution, the water inlet groove 22 can also be S-shaped.

[0046] After the external water source enters the body 1 through the water inlet 11, the water inlet groove 22 on the flow limiting valve 2 fits tightly with the inner wall of the body 1 to form a water flow channel, so the water entering the body first flows into the water inlet groove 22 and flows slowly along the water inlet groove 22. Since the water inlet groove 11 increases the water flow path and water flow resistance, it can effectively reduce the water flow rate, so that the water entering the body 1 has enough time to penetrate into the soil, and prevent the water from overflowing the body 1 due to the excessive amount of water entering the body 1. By adjusting the depth of the flow limiting valve 2 at the water inlet 11 of the body, the length of the water flowing through the water inlet groove 22 can be adjusted, and the speed of the water flow can be adjusted.

[0047] As an alternative, the valve body 20 of the flow limiting valve 2 may also be a hollow square, triangular or polygonal structure.

[0048] In order to further reduce the water flow velocity, a thread meshing with the spirally distributed water channel may be provided at the water inlet 11 on the inner wall of the body 1 . The thread occupies a certain water flow channel, so that the water flow is slower.

[0049] In order to prevent water from flowing upward through the water inlet groove 22 and overflowing the body 1 , a sealing ring 25 is provided at the top of the valve body 20 and above the water inlet groove 21 to prevent water from overflowing.

[0050] To further facilitate the installation and adjustment of the position of the flow limiting valve in the main body 1, a handle 23 is provided at the top of the valve body 20 of the flow limiting valve 2, and a recess 24 is provided in the middle of the handle 23 to prevent the handle from obstructing external air from entering the main body 1 through the air inlet channel 21.

[0051] like Figure 1 , 3 As shown in Figures 6 and 7, the head 10 of the main body 1 is also provided with a detachable protective cover 3, and the protective cover 3 is connected to the main body 1 by threaded connection, plugging or snapping. Specifically, two snap interfaces 31 are provided on the protective cover 3, and a protruding buckle position 32 is provided on the inner side of the snap interface 31. A circle of support platforms 18 is provided radially outwardly on the periphery of the head 10 of the irrigation device, and transverse and longitudinal reinforcing ribs 17 are provided below the support platform 18. On the one hand, the reinforcing ribs 17 strengthen the support strength of the head 10, and on the other hand, they increase the friction when the user holds it. The support platform 18 is provided with two upwardly protruding snap blocks 15, and the snap blocks 15 are provided with a lock 16 that can cooperate with the protruding buckle position 32, and the lock 16 is formed by the outer edge of the snap block 15 being recessed inward. When the snap interface 31 is snapped into the snap block 15, the buckle position 32 and the lock 16 snap the protective cover 3 and the main body 1 together due to the elastic deformation of the material itself. Of course, it is not difficult to imagine that the buckle position 32 and the lock port 16 can be interchanged, for example, the buckle position 32 can be set on the clamping block 15, and the lock port 16 can be set on the clamping interface 31. A circle of protruding flanges is also provided on the inner side of the support platform 18. After the protective cover is closed on the irrigation device, the flanges play a role in limiting the protective cover.

[0052] The protective cover 3 is provided with a plurality of strip-shaped or circular air convection holes 33, which can prevent insects from entering the body and promote gas circulation. When air passes through the air convection holes 33, a negative pressure will be generated at the opening of the head 10 of the body. The air at the bottom of the body 1 is drawn out from the air convection holes 33 through the body 1 and the air inlet channel 21 of the limiting valve 2, and the fresh air from the outside flows into the body 1 to form air convection, which promotes gas exchange in the root part and promotes the metabolism of the root system. It is easy to imagine that the higher the height of the protective cover from the bottom surface, the more obvious the effect of this air convection will be.

[0053] like Figure 7As shown, a force-bearing portion 34 is provided at the top of the protective cover 3. The force-bearing portion 34 is a plane, preferably a square plane or a plane of other geometric shapes. The purpose of providing the force-bearing portion 34 is to facilitate the bearing of force. When the soil hardness is relatively large, the force-bearing portion 34 can be struck with a hammer to insert the main body 1 into the soil. Even without the aid of external force, the user can easily insert the main body 1 into the soil by pressing the receiving portion 34.

[0054] In order to enhance the force-bearing degree of the protective cover 3 , the protective cover 3 is further provided with a supporting member 35 for supporting the force-bearing portion 34 .

[0055] Example 2

[0056] This embodiment improves the structure and connection method of the flow limiting valve based on the embodiment 1.

[0057] like Figure 8 , 9 As shown, the flow limiting valve 5 of this embodiment includes a valve body 50 and a valve cover 51 which are buckled together. The valve cover 51 is provided with a valve water inlet 52, and the valve body 50 is provided with a valve water outlet 53. The valve body 50 and the valve cover 51 form a valve cavity, and a sheet-like valve core 54 is provided in the valve cavity. The valve core 54 can move forward and backward in the valve cavity. The inner surface of the valve body 50, that is, the side close to the valve core 54, is provided with a water guide groove (not shown in the figure), which is connected with the valve water outlet 53, and the coverage of the water guide groove is larger than the valve core 54. Water flows into the valve cavity from the valve water inlet 52, then bypasses the sheet-like valve core 54, and flows out from the valve water outlet 53. When the water flow increases, the water flow pushes the valve core 54 to move toward the valve water outlet 53 until the valve core 54 is close to the valve water outlet 53. At this time, the water entering the valve cavity can only flow to the valve water outlet 53 through the water guide groove, thereby realizing the control of the water flow rate.

[0058] In this embodiment, the flow limiting valve 5 is arranged outside the body 1, and the valve outlet 53 of the flow limiting valve 5 is directly or indirectly connected to the water inlet pipe 12 of the irrigation device, and the valve inlet 52 of the flow limiting valve is connected to the water pipe connected to the external water source.

[0059] The valve outlet 53 of the flow limiting valve 5 is indirectly connected to the water inlet pipe 12 of the irrigation device, which means that the valve outlet 53 and the water inlet pipe 13 are connected through a conduit 55 .

[0060] In this embodiment, the flow limiting valve 2 installed in the irrigation device body 1 is omitted, and the flow limiting valve is installed outside the irrigation device, which can simplify the structure of the irrigation device and facilitate the installation of the flow limiting valve.

[0061] As an alternative, the irrigation device can be further simplified by eliminating the water inlet pipe 12 structure, directly installing the flow limiting valve in the water pipe connected to the external water source or at the outlet end of the water pipe, and then placing the outlet end of the water pipe into the irrigation device body. This solution can also simplify the structure of the irrigation device and reduce the difficulty of manufacturing the irrigation device.

[0062] Example 3

[0063] This embodiment further improves the irrigation device based on the embodiment 1.

[0064] In this embodiment, an extension section is provided on the head 10 of the irrigation device body. The extension section is cylindrical and is located above the water outlet 13. The extension section is integrally formed with the body 1 and is suitable for vegetation with deep roots.

[0065] In addition, the extension section can also be independent of the body 1 and connected to the body by means of a snap connection or a thread connection. Specifically, the head 10 and the rod 19 are detachably connected, and the two can be connected by means of a thread connection or a snap connection, the water inlet 11 is provided at the head 10, and the extension section is provided between the rod 19 and the head 10.

[0066] The extension part may be provided with the water outlet hole 13 or not. When the ventilation and watering amount of the shallow soil need to be increased, the extension part with the water outlet hole 13 may be used.

[0067] Example 4

[0068] This embodiment provides an irrigation system, which includes a water source, a water pipe connected to the water source, and a plurality of the above-mentioned irrigation devices connected to the water pipe. The plurality of irrigation devices can be directly connected to one water pipe or respectively connected to different water pipes.

[0069] The irrigation system can be used to water the vegetation to achieve the purpose of irrigation, and can also be used to apply fertilizers or root pesticides, just by dissolving the fertilizers or pesticides in the water source.

[0070] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An irrigation device, comprising a body, It is characterized in that The body is surrounded by side walls to form a hollow cylindrical structure, the upper end of the body is open to form a head, the lower end of the head is a rod, and the side wall of the body is provided with a plurality of water outlet holes penetrating the side wall; The bottom end of the rod is a closed end, the head of the body is provided with a water inlet, and the water inlet is provided with a water inlet pipe; The water outlet holes are distributed along the periphery of the body or along one side or both sides of the body, and the bottom end of the body is provided with a protective wing protruding from the surface of the body to prevent soil from entering the water inlet holes; The head of the main body is provided with a detachably connected protective cover, and the protective cover is provided with a plurality of air convection holes; A flow limiting valve in communication with the water inlet is provided at the water inlet in the body; The flow limiting valve comprises a valve body, the valve body is inserted into the head of the main body, the interior of the valve body is a hollow structure, forming a longitudinally penetrating air inlet channel, the outer surface of the valve body is provided with a water inlet groove connected to the water inlet, and the water inlet groove is attached to the inner side wall of the main body to form a water flow channel; The water inlet groove is distributed in a spiral shape along the outer surface of the flow limiting valve until the end of the flow limiting valve, or the water inlet groove is S-shaped; A sealing ring is also provided at the top of the valve body and above the water inlet groove to prevent water from overflowing. A handle is provided at the top of the valve body, and a recess is provided in the middle of the handle to prevent the air inlet channel from being blocked.

2. The irrigation device according to claim 1, It is characterized in that The protective cover is provided with two card interfaces, the inner side of the card interfaces is provided with a protruding buckle position, the periphery of the head of the irrigation device is provided with a support platform radially outward, the support platform is provided with two upwardly protruding card blocks, and the card blocks are provided with a lock that can cooperate with the protruding buckle position.

3. The irrigation device according to claim 1, It is characterized in that A force-bearing portion is provided at the top of the protective cover, and the force-bearing portion is a plane.

4. The irrigation device according to claim 1, It is characterized in that An extension section is arranged between the head and the rod.

5. An irrigation system comprising a water source and a water pipe connected to the water source, It is characterized in that The irrigation system further comprises a plurality of irrigation devices as claimed in any one of claims 1 to 4, wherein the irrigation devices are connected to a water pipe.

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