Intelligent water and fertilizer integrated irrigation robot

Abstract

The invention relates to the technical field of irrigation and fertilization equipment, and discloses an intelligent water and fertilizer integrated irrigation robot which comprises an outer insertion rod, an inner ring groove is formed in the outer insertion rod, a pressure cavity is formed in the outer insertion rod, an inner through hole is formed in the inner wall of the pressure cavity, an elastic ring is arranged on a port of the inner through hole, and a circulation groove is formed in the bottom end of the outer insertion rod. The top end of the circulation groove communicates with the inner ring groove, a water outlet of the circulation groove extends to the bottom of the outer surface of the outer insertion rod, and an external guide pipe communicating with the inner ring groove is arranged at the top of the outer surface of the outer insertion rod. According to the intelligent water and fertilizer integrated irrigation robot, an inner ring groove, an elastic ring and a circulation groove are formed in an outer insertion rod, when irrigation and fertilization are conducted on crops, liquid fertilizers with different attributes are conveyed to soil layers with different depths to be applied through the outer insertion rod and a structure on the outer insertion rod, the balance of crop fertilization is high, and the irrigation and fertilization efficiency is improved. The effective absorption and utilization rate of crop roots to fertilizers with different attributes is relatively high.

Description

Technical Field

[0001] The present application relates to the technical field of irrigation and fertilization equipment, and in particular to an intelligent water-fertilizer integrated irrigation robot. Background Art

[0002] In order to ensure the normal growth of crops and obtain stable and high yields of crops, it is an indispensable measure to supplement the water and fertilizers needed for the growth of crops. With the development of science and technology, the method of adding fertilizers along with irrigation water to the roots of crops for direct absorption and utilization has become the main direction of the development of modern agricultural technology in order to maximize the benefits of water and fertilizers. However, due to the differences in the fertilizers (mainly nitrogen, phosphorus, and potassium), in order to ensure that they are absorbed by the crop roots to the greatest extent, there are also obvious differences in the depth of fertilizer application. For example, nitrogen fertilizer is easily soluble in water and easily leached, so it needs to be applied on the surface or in a shallow layer. Phosphorus fertilizer has poor mobility and needs to be applied in the middle layer close to the crop roots to avoid being "fixed" due to large-area contact with the soil and unable to be effectively absorbed by the crop roots, resulting in waste. Potassium fertilizer has a certain degree of mobility and can be applied in a deep layer to meet the mid- and late-stage needs of crops. However, in the process of irrigation and fertilization, the existing integrated water and fertilizer irrigation equipment applies fertilizers of different properties at the same depth, which leads to large differences in the effective absorption and utilization rate of the different properties of the applied fertilizers by the crop roots. The unbalanced fertilization affects the growth state of the crops, and the stability and reliability are poor.

[0003] Therefore, there is an urgent need for a water-fertilizer integrated irrigation robot to solve the problem of unbalanced fertilization caused by the above-mentioned existing equipment during the irrigation and fertilization process. Summary of the invention

[0004] The present application proposes an intelligent water-fertilizer integrated irrigation robot, which can apply fertilizers with different properties to soils at different depths during irrigation, so that it has the advantages of better balance, stability and reliability in crop irrigation and fertilization. It is used to solve the problem that in the process of irrigation and fertilization, fertilizers with different properties are applied at the same depth in the existing water-fertilizer integrated irrigation equipment, which leads to large differences in the effective absorption and utilization rate of the applied fertilizers with different properties by the crop roots, and the growth state of the crop is affected by the imbalance of fertilization.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: an intelligent water-fertilizer integrated irrigation robot, comprising an external plug-in rod with a top end fixedly mounted on the irrigation robot, and when irrigating and fertilizing crops, the external plug-in rod can be inserted into the soil near the root system of the crops, the interior of the external plug-in rod is provided with three groups of inner ring grooves arranged in a circular array and independent of each other, the interior of the external plug-in rod is provided with a pressure chamber connected to the water flow system of the irrigation robot at the top end, the inner wall of the pressure chamber is provided with three groups of inner through holes arranged in a spiral shape and respectively connected to the three groups of inner ring grooves, and at the same time, three groups of elastic rings are respectively provided on the ports of the three groups of the inner through holes, so that initially, the three groups of inner through holes are in a relatively sealed state, and under pressure When the cavity is filled with irrigation water and a certain water pressure is generated, the elastic ring can be forced to undergo elastic deformation so that the irrigation water enters the three groups of inner ring grooves respectively through the three groups of inner through holes, and three groups of flow grooves are provided at the bottom end of the outer plug rod. The top ends of the three groups of flow grooves are respectively connected with the three groups of inner ring grooves, and the water outlets of the three groups of flow grooves extend to the bottom of the outer surface of the outer plug rod respectively. The top of the outer surface of the outer plug rod is provided with three groups of external conduits respectively connected with the three groups of inner ring grooves, and the top ends of the three groups of external conduits are respectively connected with liquid fertilizer delivery systems of different properties on the irrigation robot, so that liquid fertilizers of different properties can be mixed with the irrigation water entering the inner ring grooves, and discharged to the root system of the crops through the flow grooves.

[0006] Furthermore, the water outlets of the three groups of flow grooves extending to the bottom of the outer surface of the outer plug rod are arranged in sequence from top to bottom, and the fertilizer with a relatively deep application depth is transported to the inner ring groove connected to the flow groove of the lowest water outlet through the external conduit, while the fertilizer with a relatively shallow application depth is transported to the inner ring groove connected to the flow groove of the highest water outlet through the external conduit: Furthermore, when irrigating and fertilizing crops, liquid fertilizers of different properties can be transported to soil layers of different depths for application through the external plug-in rod and the structure thereon, so that the fertilization of crops is more balanced and the crop roots have a higher effective absorption and utilization rate of fertilizers of different properties.

[0007] Furthermore, the elastic strength of the elastic ring on the inner through hole in the inner ring groove connected to the bottommost flow groove is the smallest, while the elastic strength of the elastic ring on the inner through hole in the inner ring groove connected to the topmost flow groove is the largest: Based on the effect of soils with different humidity levels on water permeability, under the same pressure of irrigation water in the pressure chamber, it can be ensured that the flow channel at the lowest outlet is connected to the irrigation water first, so as to wet the lowest layer of soil in the crop root system and apply liquid potassium fertilizer. In the process of increasing the pressure of the irrigation water in the pressure chamber, irrigation and fertilization are carried out layer by layer, thereby effectively increasing the residence time of the irrigation water and the fertilizer on it in the soil layers at different depths, so as to "fix" the fertilizers with different properties in the soil layers at the corresponding depths.

[0008] Furthermore, the water outlets of the three groups of flow slots arranged in sequence from top to bottom are located on the same side of the outer surface of the outer plug rod, and when the crops are irrigated and fertilized, the water outlets of the flow slots are directed toward the direction of the crops.

[0009] Furthermore, a piston is provided at the top of the inner annular groove, and an elastic member is fixedly installed on the top of the piston, and the piston is elastically connected to the top of the inner annular groove through the elastic member. At the same time, initially, the piston and the external conduit overlap with each other to block the flow of liquid fertilizer on the piston, and when the interior of the inner annular groove is filled with irrigation water, under the action of water pressure, the piston is forced to move upward and compress the elastic member, thereby connecting the external conduit and the inner annular groove so that the liquid fertilizer flows into the inner annular groove and mixes with the irrigation water thereon.

[0010] Furthermore, three groups of guide tubes with first one-way valves inside are provided in the middle of the outer surface of the outer plug rod, and one end of the three groups of guide tubes are respectively connected with the three groups of inner annular grooves, while the other ends of the three groups of guide tubes are respectively connected with the three groups of external conduits. At the same time, three groups of second one-way valves are respectively provided inside the three groups of external conduits, so that the pressure of the irrigation water entering the inner annular groove can be divided into three groups. The first group discharges the irrigation water through the flow groove, the second group flows upward to squeeze the piston and open the external conduit for the delivery of liquid fertilizer, and the third group first enters the external conduit through the guide tube and dilutes the liquid fertilizer thereon, so that the liquid fertilizer can be better mixed with the irrigation water thereon when entering the inner annular groove.

[0011] Furthermore, a plurality of guide grooves arranged in a circular array are provided at the bottom of the outer surface of the outer plug-in rod, thereby increasing the shear force exerted on the outer plug-in rod when it is inserted into the soil, so that the outer plug-in rod can be better inserted into the soil. At the same time, the setting of the guide groove can ensure that the outer plug-in rod is not prone to tilting during the process of being inserted into the soil.

[0012] The beneficial effects of the present invention are as follows: The present application provides an intelligent water-fertilizer integrated irrigation robot. For the arrangement of the inner ring groove, elastic ring and flow groove on the outer plug rod, when irrigating and fertilizing crops, liquid fertilizers with different properties are transported to soil layers of different depths for application through the outer plug rod and the structure thereon, so that the fertilization of crops is more balanced, and by irrigating and fertilizing layer by layer, the residence time of irrigation water and the fertilizer on it in soil layers of different depths can be effectively increased, and the fertilizers of different properties can be "fixed" in the soil layers of corresponding depths, so that the crop roots have a higher effective absorption and utilization rate of fertilizers of different properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a front view of the structure of the present invention; Figure 3 The structure of the present invention Figure 2 Sectional view at AA in the middle; Figure 4 The structure of the present invention Figure 1 The enlarged schematic diagram of point B in FIG. Figure 5 It is a side view of the structure of the present invention.

[0014] In the figure: 1-external plug rod, 2-inner ring groove, 3-pressure chamber, 4-inner through hole, 5-elastic ring, 6-flow groove, 7-external conduit, 8-piston, 9-elastic member, 10-guide tube, 11-guide groove. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] like Figure 1 , Figure 2 As shown, an intelligent water-fertilizer integrated irrigation robot includes an external plug-in rod 1 whose top end is fixedly mounted on the irrigation robot. When irrigating and fertilizing crops, the external plug-in rod 1 can be inserted into the soil near the root system of the crops, such as Figure 3As shown, the outer plug rod 1 is provided with three groups of inner ring grooves 2 arranged in a circular array and independent of each other, and the outer plug rod 1 is provided with a pressure chamber 3 whose top end is connected to the upper water flow system of the irrigation robot, and the inner wall of the pressure chamber 3 is provided with three groups of inner through holes 4 arranged in a spiral shape and respectively connected to the three groups of inner ring grooves 2, and at the same time, three groups of elastic rings 5 ​​are respectively provided on the ports of the three groups of inner through holes 4, so that initially, the three groups of inner through holes 4 are in a relatively sealed state, and when the pressure chamber 3 is filled with irrigation water and a certain water pressure is generated, the elastic ring 5 can be forced to undergo elastic deformation so that the irrigation water can be discharged through the three groups of inner through holes 4. They enter the three groups of inner ring grooves 2 respectively, and three groups of flow grooves 6 are provided at the bottom end of the outer plug rod 1, the top ends of the three groups of flow grooves 6 are respectively connected with the three groups of inner ring grooves 2, and the water outlets of the three groups of flow grooves 6 extend to the bottom of the outer surface of the outer plug rod 1 respectively, and the top of the outer surface of the outer plug rod 1 is provided with three groups of external conduits 7 respectively connected with the three groups of inner ring grooves 2, and the top ends of the three groups of external conduits 7 are respectively connected with liquid fertilizer delivery systems of different properties on the irrigation robot, so that the liquid fertilizers of different properties can be mixed with the irrigation water entering the inner ring groove 2, and discharged to the root system of the crop through the flow groove 6 respectively.

[0017] like Figure 1 , Figure 2 As shown, in the present technical solution, the water outlets of the three groups of flow slots 6 extending to the bottom of the outer surface of the outer plug rod 1 are arranged in sequence from top to bottom, and the fertilizer (liquid potassium fertilizer) with a relatively deep application depth is transported to the inner ring groove 2 connected to the bottom water outlet flow slot 6 through the external conduit 7, while the fertilizer (liquid nitrogen fertilizer) with a relatively shallow application depth is transported to the inner ring groove 2 connected to the top water outlet flow slot 6 through the external conduit 7: Furthermore, when irrigating and fertilizing crops, liquid fertilizers of different properties can be transported to soil layers of different depths for application through the external plug-in rod 1 and the structure thereon, so that the fertilization of crops is more balanced and the crop roots can effectively absorb and utilize fertilizers of different properties at a higher rate.

[0018] In the technical solution, the elastic strength of the elastic ring 5 on the inner through hole 4 in the inner ring groove 2 connected to the flow groove 6 at the bottom is the smallest, while the elastic strength of the elastic ring 5 on the inner through hole 4 in the inner ring groove 2 connected to the flow groove 6 at the top is the largest: Based on the effect of soils with different humidity levels on water permeability, under the same pressure of irrigation water in the pressure chamber 3, it can be ensured that the flow groove 6 at the lowest water outlet is connected to the irrigation water first, so as to wet the lowest layer of soil in the crop root system and apply liquid potassium fertilizer. In the process of increasing the pressure of the irrigation water in the pressure chamber 3, irrigation and fertilization are carried out layer by layer, thereby effectively increasing the residence time of the irrigation water and the fertilizer on it in the soil layers at different depths, so as to "fix" the fertilizers with different properties in the soil layers at the corresponding depths.

[0019] like Figure 1 , Figure 5 As shown, in the present technical solution, the water outlets of the three groups of flow slots 6 arranged sequentially from top to bottom are located on the same side of the outer surface of the outer plug rod 1, and the water outlets of the flow slots 6 are directed toward the crops when irrigating and fertilizing the crops.

[0020] like Figure 1 , Figure 4 As shown, in the present technical solution, a piston 8 is provided at the top of the inner annular groove 2, and an elastic member 9 is fixedly installed at the top of the piston 8, and the piston 8 is elastically connected to the top of the inner annular groove 2 through the elastic member 9. At the same time, initially, the piston 8 and the external conduit 7 overlap with each other to block the flow of liquid fertilizer on the piston 8, and when the interior of the inner annular groove 2 is filled with irrigation water, under the action of water pressure, the piston 8 is forced to move upward and compress the elastic member 9, thereby connecting the external conduit 7 and the inner annular groove 2 so that the liquid fertilizer flows into the inner annular groove 2 and mixes with the irrigation water thereon.

[0021] like Figure 1 , Figure 2 as well as Figure 4 As shown, in the present technical solution, three groups of guide tubes 10 with first one-way valves inside are provided in the middle of the outer surface of the outer rod 1, and one end of the three groups of guide tubes 10 are respectively connected to the three groups of inner annular grooves 2, and the other ends of the three groups of guide tubes 10 are respectively connected to the three groups of external conduits 7. At the same time, three groups of second one-way valves are respectively provided inside the three groups of external conduits 7, so that the pressure of the irrigation water entering the inner annular groove 2 can be divided into three groups. The first group discharges the irrigation water through the flow groove 6, the second group flows upward to squeeze the piston 8 and open the external conduit 7 for the delivery of liquid fertilizer, and the third group first enters the external conduit 7 through the guide tube 10 and dilutes the liquid fertilizer thereon, so that the liquid fertilizer can be better mixed with the irrigation water thereon when entering the inner annular groove 2.

[0022] like Figure 5 As shown, in the present technical solution, a plurality of guide grooves 11 arranged in a circular array are provided at the bottom of the outer surface of the external plug-in rod 1, thereby increasing the shear force exerted on the external plug-in rod 1 when it is inserted into the soil, so that the external plug-in rod 1 can be better inserted into the soil. At the same time, the setting of the guide grooves 11 can ensure that the external plug-in rod 1 is not prone to tilting during the process of being inserted into the soil.

[0023] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent water-fertilizer integrated irrigation robot, comprising an external plug-in rod (1), characterized in that: The outer plug rod (1) is provided with three groups of inner ring grooves (2) arranged in a circular array and independent of each other. The outer plug rod (1) is provided with a pressure chamber (3). The inner wall of the pressure chamber (3) is provided with three groups of inner through holes (4) arranged in a spiral shape and respectively connected to the three groups of inner ring grooves (2). At the same time, three groups of elastic rings (5) are respectively provided on the ports of the three groups of inner through holes (4). Three groups of flow grooves (6) are provided at the bottom end of the outer plug rod (1). The top ends of the three groups of flow grooves (6) are respectively connected to the three groups of inner ring grooves (2). The water outlets of the three groups of flow grooves (6) extend to the bottom of the outer surface of the outer plug rod (1). The top of the outer surface of the outer plug rod (1) is provided with three groups of external conduits (7) respectively connected to the three groups of inner ring grooves (2).

2. The intelligent water-fertilizer integrated irrigation robot according to claim 1, characterized in that: The water outlets of the three groups of flow grooves (6) extending to the bottom of the outer surface of the outer plug rod (1) are arranged in sequence from top to bottom, and fertilizer with a relatively deep application depth is transported to the inner ring groove (2) connected to the bottom water outlet flow groove (6) through the external conduit (7), while fertilizer with a relatively shallow application depth is transported to the inner ring groove (2) connected to the top water outlet flow groove (6) through the external conduit (7).

3. The intelligent water-fertilizer integrated irrigation robot according to claim 2 is characterized in that: The elastic strength of the elastic ring (5) on the inner through hole (4) in the inner ring groove (2) connected to the circulation groove (6) at the lowest position is the smallest, while the elastic strength of the elastic ring (5) on the inner through hole (4) in the inner ring groove (2) connected to the circulation groove (6) at the highest position is the largest.

4. The intelligent water-fertilizer integrated irrigation robot according to claim 3 is characterized in that: The water outlets of the three groups of flow slots (6) arranged in sequence from top to bottom are located on the same side of the outer surface of the outer plug rod (1), and when irrigating and fertilizing crops, the water outlets of the flow slots (6) are directed toward the direction of the crops.

5. The intelligent water-fertilizer integrated irrigation robot according to claim 1, characterized in that: A piston (8) is provided at the top of the inner annular groove (2), and an elastic member (9) is fixedly mounted on the top of the piston (8). The piston (8) is elastically connected to the top of the inner annular groove (2) through the elastic member (9). At the same time, at the initial stage, the piston (8) and the external conduit (7) overlap with each other to block the flow of liquid fertilizer on the piston (8). When the interior of the inner annular groove (2) is filled with irrigation water, the piston (8) is forced to move upward and compress the elastic member (9) under the action of water pressure, thereby connecting the external conduit (7) and the inner annular groove (2) so that the liquid fertilizer flows into the inner annular groove (2) and mixes with the irrigation water thereon.

6. The intelligent water-fertilizer integrated irrigation robot according to claim 5, characterized in that: Three groups of flow guide tubes (10) each having a first one-way valve disposed therein are disposed in the middle of the outer surface of the outer plug rod (1), and one end of the three groups of flow guide tubes (10) are respectively connected to the three groups of inner ring grooves (2), while the other ends of the three groups of flow guide tubes (10) are respectively connected to the three groups of external conduits (7). At the same time, three groups of second one-way valves are respectively disposed inside the three groups of external conduits (7).

7. The intelligent water-fertilizer integrated irrigation robot according to claim 1, characterized in that: The bottom of the outer surface of the outer plug rod (1) is provided with a plurality of guide grooves (11) arranged in a ring array.

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