Segmented flow-regulated emitter and method of irrigation

Abstract

The application relates to a water irrigator and a water irrigating method, which can realize segmented regulation of water flow. The water irrigator comprises an upper shell, a lower shell and an elastic labyrinth body. The lower side of the upper shell is provided with a containing cavity, and the upper side is provided with a water inlet plug for connecting a water pipe. A water inlet channel is arranged in the water inlet plug and is communicated with the containing cavity. The upper side of the lower shell is provided with a water storage chamber, and the lower shell is provided with a water outlet channel on one side. The elastic labyrinth body is embedded in the containing cavity of the upper shell, the water storage chamber of the lower shell is inserted into the containing cavity to limit the elastic labyrinth body, and the lower shell and the upper shell are rotationally matched. The elastic labyrinth body is limited by a limiting mechanism to realize synchronous rotation with the upper shell. The segmented regulation of water flow can be realized by rotating the upper shell or the lower shell, and the problem that the water flow of the current water irrigator cannot be regulated is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the drip irrigation technical field, especially to the irrigation device and irrigation method of segmented flow regulation. BACKGROUND

[0002] The drip irrigation of crops is generally to send water to the crop roots for local irrigation through the irrigation device on the pipe with a diameter of about 10mm. The drip irrigation can greatly improve the utilization rate of water resources, has higher water-saving and yield-increasing effect than the sprinkling irrigation, and can combine with fertilization to improve the fertilizer efficiency by more than one time. The drip irrigation can be applied to the irrigation of fruit trees, vegetables, economic crops and greenhouse, and can also be applied to the irrigation of field crops in drought and water shortage areas. The irrigation device is used to form energy loss after the water flow passes through the labyrinth flow channel, so as to reduce the pressure and make the water flow into the soil in a drop manner.

[0003] At present, many different kinds of plants with different water requirements are mixed, and the existing irrigation device cannot realize the independent water flow regulation, but can only regulate the water flow through the total valve or the water pressure adjustment device of the drip irrigation system, so that the unified water flow is formed, the water flow cannot be adjusted according to the water requirements of different plants, and the phenomenon that the "big person eats too much and the small person eats too little" or the "small person eats too much and the big person eats too little" occurs, which causes the problem of too large or too small water consumption of plants, is not conducive to the growth of plants, and greatly reduces the effective utilization rate of water resources. SUMMARY

[0004] The present application provides the irrigation device and irrigation method of segmented flow regulation in view of the deficiencies of the prior art.

[0005] The present application provides the irrigation device and irrigation method of segmented flow regulation in view of the deficiencies of the prior art. The irrigation device and irrigation method of segmented flow regulation are provided, which include an upper shell, a lower shell and an elastic labyrinth body. The lower side of the upper shell is provided with a containing cavity, and the upper side is provided with a water inlet plug for connecting a water pipe. A water inlet channel is arranged in the water inlet plug and is communicated with the containing cavity. The upper side of the lower shell is provided with a water storage chamber, and the side of the lower shell is provided with a water outlet channel. The elastic labyrinth body is embedded in the containing cavity of the upper shell, and the water storage chamber of the lower shell is inserted into the containing cavity to limit the elastic labyrinth body. The lower shell and the upper shell are rotationally matched. The elastic labyrinth body is limited by a limiting mechanism to realize synchronous rotation with the upper shell. A labyrinth flow channel is arranged on the elastic labyrinth body and is communicated with the water inlet channel. The labyrinth flow channel includes a straight turbulent section arranged along the radial direction of the elastic labyrinth body and an arc turbulent section arranged along the circumferential direction of the elastic labyrinth body. A plurality of water outlet through holes matched with the water outlet channel are arranged on the arc turbulent section. The diameters of the water outlet through holes are different, and the rotation of the upper shell or the lower shell can make the water outlet channel communicated with each water outlet through hole.

[0006] Preferably, the first end of the straight turbulent section is communicated with the water inlet channel, and the last end of the straight turbulent section is communicated with the first end of the arc turbulent section.

[0007] Preferably, the four water outlet through holes are arranged on the arc-shaped turbulence section, and the first end and the last end of the arc-shaped turbulence section are respectively provided with one water outlet through hole, and one water outlet through hole is arranged at one third and two thirds of the arc-shaped turbulence section.

[0008] Preferably, rotation indication marks are arranged on the outer side wall of the upper shell along the circumferential direction of the outer side wall. When the upper shell or the lower shell is rotated, the water outlet channel and the water outlet through hole can be accurately aligned and communicated.

[0009] Preferably, the rotation indication marks are specifically indication letters A, B, C and D arranged on the outer side wall of the upper shell along the circumferential direction of the outer side wall, and the indication letters A, B, C and D are respectively one-to-one corresponding to the four water outlet through holes.

[0010] Preferably, the water outlet through hole indicated by the indication letter A has a hole diameter of 2 mm, and the corresponding water outlet flow is 12 L / h; the water outlet through hole indicated by the indication letter B has a hole diameter of 1.5 mm, and the corresponding water outlet flow is 8 L / h; the water outlet through hole indicated by the indication letter C has a hole diameter of 1 mm, and the corresponding water outlet flow is 4 L / h; and the water outlet through hole indicated by the indication letter D has a hole diameter of 0.5 mm, and the corresponding water outlet flow is 2 L / h.

[0011] Preferably, in order to facilitate the rotation of the upper shell or the lower shell, anti-skid lines are arranged on the outer side wall of the upper shell and the outer side wall of the lower shell.

[0012] Preferably, the upper shell accommodating cavity side wall is provided with a limiting clamping groove, and the water storage chamber outer wall top end of the lower shell is provided with a limiting protrusion, and the limiting protrusion is clamped into the limiting clamping groove to connect the upper shell and the lower shell together.

[0013] Preferably, the limiting mechanism comprises two symmetrical half-moon-shaped protrusions arranged on the cavity bottom of the accommodating cavity, and two half-moon-shaped clamping grooves matched with the half-moon-shaped protrusions are arranged on the elastic labyrinth body, and the half-moon-shaped protrusions are embedded into the half-moon-shaped clamping grooves to limit the elastic labyrinth body.

[0014] Preferably, the elastic labyrinth body is made of silicone rubber.

[0015] The second aspect of the present application provides a water irrigation method using the above-mentioned water irrigator, which comprises the following steps:

[0016] (1) When the water irrigation starts, the irrigation water delivered by the water delivery pipe enters the labyrinth flow channel through the water inlet channel, and after the irrigation water fills the labyrinth flow channel, part of the irrigation water enters the water outlet channel through one of the water outlet through holes, and the other part of the irrigation water enters the water storage chamber through the other three water outlet through holes until the water storage chamber is filled with the irrigation water;

[0017] (2) After the water storage chamber is filled with water, the irrigation water is stably discharged through the water outlet channel after turbulent flow through the labyrinth flow channel, and the water outlet position of the labyrinth flow channel is adjusted by rotating the upper shell or the lower shell to adjust the water outlet amount according to the water requirement of different plants.

[0018] The beneficial effects of the present application are:

[0019] 1、The present application can realize the segmented adjustment of the water outlet flow by rotating the upper shell or the lower shell, which is convenient to operate, can adjust the water outlet amount according to the different water requirements of plants, solves the problem that the water outlet amount of the current irrigation device cannot be adjusted, is beneficial to the growth of plants, and improves the utilization rate of water resources.

[0020] 2、The water outlet position of the labyrinth flow channel is adjusted by rotating the upper shell or the lower shell, and the water outlet amount is adjusted due to the different diameters of the water outlet positions of the labyrinth flow channel; the water storage chamber filled with water generates a force on the elastic labyrinth body, which can offset part of the water pressure, and plays a role of pressure compensation and pressure stabilization. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front view structural schematic diagram of the present application;

[0022] Figure 2 It is a longitudinal sectional view structural schematic diagram of the present application;

[0023] Figure 3 It is a longitudinal sectional view structural schematic diagram of the elastic labyrinth body of the present application;

[0024] Figure 4 It is a top view structural schematic diagram of the elastic labyrinth body of the present application;

[0025] Figure 5 It is a longitudinal sectional view structural schematic diagram of the upper shell of the present application;

[0026] Figure 6 It is a top view structural schematic diagram of the upper shell of the present application;

[0027] Figure 7 It is a longitudinal sectional view structural schematic diagram of the lower shell of the present application;

[0028] Figure 8 It is a top view structural schematic diagram of the lower shell of the present application;

[0029] In the drawings:

[0030] 1、The upper shell, 2、The lower shell, 3、The elastic labyrinth body;

[0031] 11、The accommodating cavity, 12、The water inlet plug, 13、The water inlet channel, 14、The limiting clamping groove, 15、The half-moon-shaped protrusion;

[0032] 21. Water storage chamber; 22. Water outlet channel; 23. Limiting protrusion;

[0033] 31. Straight turbulent flow section; 32. Arc-shaped turbulent flow section; 33. Water outlet through hole; 34. Crescent-shaped groove. Detailed Implementation

[0034] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0035] like Figures 1-8 As shown, the present invention includes an upper shell 1, a lower shell 2, and an elastic labyrinth body 3. The lower side of the upper shell 1 has a receiving cavity 11, and the upper side has a water inlet plug 12 for connecting a water pipe. The water inlet plug 12 has a water inlet channel 13, which communicates with the receiving cavity 11. The upper side of the lower shell 2 has a water storage chamber 21, and one side of the lower shell 2 has a water outlet channel 22. The elastic labyrinth body 3 is embedded in the receiving cavity 11 of the upper shell 1. The water storage chamber 21 of the lower shell 2, inserted into the receiving cavity 11, limits the movement of the elastic labyrinth body 3. The lower shell 2 and the upper shell 1 are rotatably coupled. The elastic labyrinth body 3 is limited by a limiting mechanism to achieve synchronous rotation with the upper shell 1.

[0036] A labyrinth flow channel connected to the water inlet channel 13 is provided on the elastic labyrinth body 3. The labyrinth flow channel includes a straight turbulent section 31 arranged along the radius of the elastic labyrinth body 3 and an arc-shaped turbulent section 32 arranged along the circumference of the elastic labyrinth body 3. The first end of the straight turbulent section 31 is connected to the water inlet channel 13, and the second end of the straight turbulent section 31 is connected to the first end of the arc-shaped turbulent section 32. Multiple water outlet holes 33 that cooperate with the water outlet channel 22 are provided on the arc-shaped turbulent section 32. The diameter of each water outlet hole 33 is different. Rotating the upper shell 1 or the lower shell 2 can make the water outlet channel 22 connect with each water outlet hole 33.

[0037] In this embodiment, there are four water outlet holes 33. The length of the arc-shaped turbulent section 32 is three-quarters of a circle. A water outlet hole 33 is provided at the beginning and end of the arc-shaped turbulent section 32, and a water outlet hole 33 is provided at one-third and two-thirds of the arc-shaped turbulent section 32.

[0038] When the water outlet flow rate is adjusted, the upper shell 1 or the lower shell 2 is rotated to connect the water outlet channel 22 with the corresponding water outlet through hole 33. Each 90° rotation changes the water outlet through hole 33 connected with the water outlet channel 22. In order to accurately align the water outlet channel 22 with the water outlet through hole 33, the outer wall of the upper shell 1 is provided with the indicating letters A, B, C and D along the circumferential direction. The indicating letters A, B, C and D are one-to-one corresponding to the four water outlet through holes 33. In the embodiment, the water outlet through hole 33 indicated by the indicating letter A has a diameter of 2 mm and the corresponding water outlet flow rate is 12 L / h. The water outlet through hole 33 indicated by the indicating letter B has a diameter of 1.5 mm and the corresponding water outlet flow rate is 8 L / h. The water outlet through hole 33 indicated by the indicating letter C has a diameter of 1 mm and the corresponding water outlet flow rate is 4 L / h. The water outlet through hole 33 indicated by the indicating letter D has a diameter of 0.5 mm and the corresponding water outlet flow rate is 2 L / h. In order to facilitate the rotation of the upper shell 1 or the lower shell 2, the outer wall of the upper shell 1 and the outer wall of the lower shell 2 are both provided with anti-skid lines.

[0039] In the embodiment, the side wall of the accommodating cavity 11 of the upper shell 1 is provided with a limiting clamping groove 14, and the outer wall of the water storage chamber 21 of the lower shell 2 is provided with a limiting protrusion 23 at the top end. The limiting protrusion 23 is clamped into the limiting clamping groove 14 to connect the upper shell 1 and the lower shell 2 together.

[0040] The limiting mechanism includes two symmetrical half-moon-shaped protrusions 15 arranged on the bottom of the accommodating cavity 11, and two half-moon-shaped clamping grooves 34 arranged on the elastic labyrinth body 3 and matched with the half-moon-shaped protrusions 15. The half-moon-shaped protrusions 15 are embedded into the half-moon-shaped clamping grooves 34 to limit the elastic labyrinth body 3. The elastic labyrinth body 3 is made of silicone rubber.

[0041] The water irrigation method using the segmented flow rate adjusting irrigation device includes the following steps:

[0042] (1) When the water irrigation starts, the irrigation water delivered by the water delivery pipe enters the labyrinth flow channel through the water inlet channel 13. After the labyrinth flow channel is filled with the irrigation water, part of the irrigation water enters the water outlet channel through one of the water outlet through holes 33, and the other part of the irrigation water enters the water storage chamber 21 through the other three water outlet through holes 33 until the water storage chamber 21 is filled with the irrigation water.

[0043] (2) After the normal water irrigation starts, the water storage chamber 21 is always filled with water, which generates a force on the elastic labyrinth body 3, thereby offsetting part of the water pressure and playing a role of pressure compensation and pressure stabilization. The irrigation water stably flows out of the water outlet channel 22 after turbulent flow in the labyrinth flow channel. According to the water requirement of different plants, the upper shell 1 or the lower shell 2 is rotated to adjust the water outlet position of the labyrinth flow channel. Since the diameters of the water outlet positions of the labyrinth flow channel are different, the water outlet flow rate is adjusted.

[0044] The present application can realize the segmented adjustment of the water flow by rotating the upper shell 1 or the lower shell 2, is convenient to operate, can adjust the size of the water flow according to the different water demand of plants, solves the problem that the water flow of the current irrigation device cannot be adjusted, is beneficial to the growth of plants, and improves the utilization rate of water resources.

[0045] Of course, the above description is not limited to the above examples, and the technical features not described in the present application can be realized by or using the prior art, which will not be described here; the above examples and drawings are only used to illustrate the technical solutions of the present application and are not a limitation on the present application, the preferred embodiments of the present application are described in detail, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the present application do not deviate from the purpose of the present application, and should also belong to the protection scope of the claims of the present application.

Claims

1. A water emitter with segmented flow rate regulation, characterized in that: The device includes an upper shell, a lower shell, and an elastic labyrinth body. The lower side of the upper shell has a receiving cavity, and the upper side has a water inlet plug for connecting a water pipe. The water inlet plug has a water inlet channel that communicates with the receiving cavity. The upper side of the lower shell has a water storage chamber, and one side of the lower shell has a water outlet channel. The elastic labyrinth body is embedded in the receiving cavity of the upper shell. The water storage chamber of the lower shell is inserted into the receiving cavity to limit the elastic labyrinth body's movement. The lower and upper shells rotate in coordination. The elastic labyrinth body is limited by a limiting mechanism to achieve synchronous rotation with the upper shell. A labyrinth flow channel communicating with the water inlet channel is provided on the elastic labyrinth body. The labyrinth flow channel includes a straight turbulent section along the radius of the elastic labyrinth body and an arc-shaped turbulent section along the circumference of the elastic labyrinth body. The beginning of the straight turbulent section is connected to the water inlet channel, and the end of the straight turbulent section is connected to the beginning of the arc-shaped turbulent section. Multiple water outlet holes are provided on the turbulent section to cooperate with the water outlet channel. The diameter of each water outlet hole is different. Rotating the upper or lower shell can connect the water outlet channel with each water outlet hole. There are four water outlet holes. The length of the arc-shaped turbulent section is three-quarters of a circle. One water outlet hole is provided at the beginning and end of the arc-shaped turbulent section, and one water outlet hole is provided at one-third and two-thirds of the arc-shaped turbulent section. The upper shell has a limiting groove on the side wall of the receiving cavity, and the lower shell has a limiting protrusion on the top of the outer wall of the water storage chamber. The limiting protrusion is engaged with the limiting groove to connect the upper shell and the lower shell together. The limiting mechanism includes two symmetrical crescent-shaped protrusions at the bottom of the receiving cavity and two crescent-shaped grooves on the elastic labyrinth body to cooperate with the crescent-shaped protrusions. The crescent-shaped protrusions are embedded in the crescent-shaped grooves to limit the elastic labyrinth body.

2. The water emitter with segmented flow rate regulation according to claim 1, characterized in that: Rotation indicator marks are provided on the outer side wall of the upper housing along its circumference.

3. The water emitter with segmented flow rate regulation according to claim 1, characterized in that: To facilitate rotation of the upper or lower shell, anti-slip textures are provided on the outer walls of both the upper and lower shells.

4. A watering method using the water emitter according to any one of claims 1-3, comprising the following steps: (1) When irrigation begins, the irrigation water delivered by the capillary tube enters the labyrinth channel through the inlet channel. After the labyrinth channel is filled with irrigation water, part of it enters the outlet channel through one of the outlet holes and the other part enters the storage chamber through the other three outlet holes until the storage chamber is filled with irrigation water. (2) After the water storage chamber is filled with water, the irrigation water flows turbulently through the maze flow channel and then flows out steadily through the water outlet channel. According to the water requirements of different plants, the water outlet position of the maze flow channel can be adjusted by rotating the upper shell or the lower shell to regulate the water output.

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