Intelligent water and fertilizer integrated irrigation robot

Abstract

The application relates to the technical field of irrigation and fertilization equipment, and discloses an intelligent water and fertilizer integrated irrigation robot, which comprises an outer inserting rod, an inner ring groove is formed in the inner part of the outer inserting rod, a pressure cavity is formed in the inner part of the outer inserting rod, an inner through hole is arranged on the inner wall of the pressure cavity, an elastic ring is arranged on the inner through hole port, a flow-through groove is arranged at the bottom end of the outer inserting rod, the top end of the flow-through groove is connected with the inner ring groove, the water outlet of the flow-through groove extends to the bottom of the outer surface of the outer inserting rod, and the top of the outer surface of the outer inserting rod is provided with an outer connecting conduit connected with the inner ring groove. The intelligent water and fertilizer integrated irrigation robot is provided with the inner ring groove, the elastic ring and the flow-through groove on the outer inserting rod, liquid fertilizers with different properties can be delivered to soil layers with different depths for application through the outer inserting rod and the structures thereon when crops are irrigated and fertilized, the balance of crop fertilization is high, and the effective absorption and utilization rate of crop root systems for fertilizers with different properties is high.

Description

TECHNICAL FIELD

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

[0002] In order to ensure the normal growth of crops and obtain stable high yield of crops, it is an indispensable measure to supplement water and fertilizer required for growth to crops, and with the development of science and technology, the mode of supplementing fertilizer to the vicinity of the root system of crops along with irrigation water to be directly absorbed and utilized to maximize the benefits of water and fertilizer has become the main direction of the development of modern agricultural technology.

[0003] However, due to the difference of the applied fertilizer (mainly nitrogen, phosphorus and potassium), in order to ensure that it is absorbed by the crop root system to the maximum extent, the application depth of the fertilizer also has obvious differences. For example, nitrogen fertilizer is easily dissolved in water and easily leached, and needs to be applied on the surface or shallow layer, while phosphorus fertilizer needs to be applied in the middle layer near the crop root system to avoid the waste caused by the fact that the phosphorus fertilizer cannot be effectively absorbed by the crop root system due to the large area contact with the soil and the "fixation" of the phosphorus fertilizer. Potassium fertilizer has a certain mobility and can be applied in deep layer to meet the needs of crops in the middle and later stages.

[0004] However, the existing water and fertilizer integrated irrigation equipment applies different properties of fertilizer at the same depth during irrigation and fertilization, which leads to a large difference in the effective absorption and utilization rate of different properties of fertilizer by the crop root system, and affects the growth state of crops due to the unbalanced application of fertilizer, and the stability and reliability are poor.

[0005] Therefore, there is an urgent need for a water and fertilizer integrated irrigation robot to solve the problem of unbalanced application of fertilizer caused by the existing equipment during irrigation and fertilization. SUMMARY

[0006] The application provides an intelligent water and fertilizer integrated irrigation robot, which has the advantages that different properties of fertilizer can be applied in different depths of soil during irrigation, the balance of irrigation and fertilization for crops is good, the stability and reliability are high, and the problem that different properties of fertilizer are applied at the same depth during irrigation and fertilization by the existing water and fertilizer integrated irrigation equipment, which leads to a large difference in the effective absorption and utilization rate of different properties of fertilizer by the crop root system, and affects the growth state of crops due to the unbalanced application of fertilizer.

[0007] In order to achieve the above object, the technical scheme adopted by the present application is as follows: an intelligent water and fertilizer integrated irrigation robot, comprising an outer insertion rod fixedly installed at the top of the irrigation robot, and when irrigation and fertilization are performed on crops, the outer insertion rod can be inserted into the soil close to the crop root system, three groups of inner annular grooves arranged in a ring array and independent of each other are formed in the inner part of the outer insertion rod, a pressure cavity in communication with the water flow system on the irrigation robot is formed at the top of the outer insertion rod, three groups of inner through holes arranged in a spiral shape and respectively connected to the three groups of inner annular grooves are arranged on the inner wall of the pressure cavity, and three groups of elastic rings are respectively arranged at the ports of the three groups of inner through holes, so that the three groups of inner through holes are in a relatively sealed state at the beginning, and when the pressure cavity is filled with irrigation water and a certain water pressure is generated, the elastic rings are forced to elastically deform to allow the irrigation water to enter the three groups of inner annular grooves through the three groups of inner through holes, three groups of flow-through grooves are arranged at the bottom of the outer insertion rod, the top ends of the three groups of flow-through grooves are respectively in communication with the three groups of inner annular grooves, and the water outlets of the three groups of flow-through grooves respectively extend to the bottom of the outer surface of the outer insertion rod, three groups of external connecting pipes in communication with the three groups of inner annular grooves are arranged at the top of the outer surface of the outer insertion rod, and the top ends of the three groups of external connecting pipes are respectively in communication with the liquid fertilizer conveying 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 annular grooves, and then discharged into the roots of the crops through the flow-through grooves.

[0008] Further, the water outlets of the three groups of flow-through grooves extending to the bottom of the outer surface of the outer insertion rod are arranged from top to bottom, and the fertilizer with the deepest application depth is conveyed into the inner annular groove in communication with the lowermost water outlet flow-through groove through the external connecting pipe, and the fertilizer with the shallowest application depth is conveyed into the inner annular groove in communication with the uppermost water outlet flow-through groove through the external connecting pipe.

[0009] Further, the water outlets of the three groups of flow-through grooves extending to the bottom of the outer surface of the outer insertion rod are arranged from top to bottom, and the fertilizer with the deepest application depth is conveyed into the inner annular groove in communication with the lowermost water outlet flow-through groove through the external connecting pipe, and the fertilizer with the shallowest application depth is conveyed into the inner annular groove in communication with the uppermost water outlet flow-through groove through the external connecting pipe.

[0010] Further, the elastic strength of the elastic ring on the inner through hole in the inner annular groove in communication with the lowermost position flow-through groove is the smallest, and the elastic strength of the elastic ring on the inner through hole in the inner annular groove in communication with the uppermost position flow-through groove is the largest.

[0011] Based on the influence of different humidity soil on water permeability, under the action of the same pressure of irrigation water in the pressure cavity, the flow-through groove of the lowermost water outlet is first connected to irrigation water to irrigate and apply liquid potassium fertilizer to the lowermost soil in the crop root system, and in the process of increasing the pressure of irrigation water in the pressure cavity, irrigation and fertilization are carried out layer by layer upwards, thereby effectively increasing the residence time of irrigation water and fertilizer on it in different depth soil layers, so as to "fix" fertilizers with different properties in the corresponding depth soil layer.

[0012] Further, the water outlets of the three groups of flow-through grooves arranged from top to bottom are located on the same side of the outer surface of the outer insertion rod, and the direction of the flow-through groove water outlet is opposite to the direction of the crop when irrigating and fertilizing the crop.

[0013] Further, the top of the inner ring groove is provided with a piston, and an elastic member is fixedly installed at the top end of the piston, and the piston is elastically connected with the top end of the inner ring groove through the elastic member, and at the beginning, the piston and the outer connecting conduit coincide with each other to block the flow of liquid fertilizer on the piston, and when the inner ring groove is filled with irrigation water, the piston is forced to move upward under the action of water pressure and compresses the elastic member, thereby connecting the outer connecting conduit with the inner ring groove to make the liquid fertilizer flow into the inner ring groove and mix with the irrigation water thereon.

[0014] Further, the middle part of the outer surface of the outer insertion rod is provided with three groups of flow guide pipes provided with first one-way valves, one end of each of the three groups of flow guide pipes is connected with one of the three groups of inner ring grooves, and the other end of each of the three groups of flow guide pipes is connected with one of the three groups of outer connecting conduits, and three groups of second one-way valves are arranged in the inner part of the three groups of outer connecting conduits, thereby the pressure of the irrigation water entering the inner ring groove can be divided into three groups, the first group is discharged through the flow-through groove, the second group flows upward to press the piston and open the outer connecting conduit for the delivery of liquid fertilizer, and the third group enters the outer connecting conduit through the flow guide pipe and dilutes the liquid fertilizer thereon, so that the liquid fertilizer can be better mixed with the irrigation water in the inner ring groove.

[0015] Further, the bottom of the outer surface of the outer insertion rod is provided with a plurality of groups of guide grooves arranged in a ring array, thereby increasing the shear force generated by the outer insertion rod when inserted into the soil, so that the outer insertion rod can be better inserted into the soil, and the arrangement of the guide grooves can ensure that the outer insertion rod does not easily tilt during insertion into the soil.

[0016] The present application has the following beneficial effects:

[0017] The intelligent water and fertilizer integrated irrigation robot provided in the application is provided with an outer insertion rod, an inner ring groove, an elastic ring and a flow-through groove, and when irrigation and fertilization are performed on crops, the outer insertion rod and the structure thereon are used to deliver liquid fertilizers with different properties to different depth soil layers for application, so that the balance of crop fertilization is higher, and through the irrigation and fertilization layer by layer upwards, the residence time of irrigation water and the fertilizer thereon in different depth soil layers can be effectively increased, and then the fertilizers with different properties are "fixed" in the corresponding depth soil layers, so that the effective absorption and utilization rate of the crop root system for the fertilizers with different properties is higher. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only a part of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on the provided drawings:

[0019] Figure 1 It is a structural schematic diagram of the present application;

[0020] Figure 2 It is a front view of the structure of the present application;

[0021] Figure 3 It is a structural schematic diagram of the present application; Figure 2 It is a sectional view of the present application structure at A-A;

[0022] Figure 4 It is an enlarged schematic diagram of the present application structure at B; Figure 1

[0023] Figure 5 It is a side view of the structure of the present application.

[0024] In the figure: 1-outer insertion rod, 2-inner ring groove, 3-pressure cavity, 4-inner through hole, 5-elastic ring, 6-flow-through groove, 7-external catheter, 8-piston, 9-elastic member, 10-flow guide pipe, 11-guide groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0026] As Figure 1 , Figure 2 ​As shown in the figure, the intelligent water and fertilizer integrated irrigation robot comprises an outer insertion rod 1 fixedly installed at the top of the irrigation robot, and when irrigation and fertilization are performed on crops, the outer insertion rod 1 can be inserted into the soil close to the crop root system, such as Figure 3 As shown in the figure, the inner part of the outer insertion rod 1 is provided with three groups of inner ring grooves 2 arranged in a ring array and independent of each other, the inner part of the outer insertion rod 1 is provided with a pressure cavity 3 at the top of which a water flow system of the irrigation robot is connected, the inner wall of the pressure cavity 3 is provided with three groups of inner through holes 4 arranged in a spiral shape and connected to the three groups of inner ring grooves 2 respectively, and meanwhile, three groups of elastic rings 5 are arranged at the ports of the three groups of inner through holes 4 respectively, so that at the beginning, the three groups of inner through holes 4 are in a relatively sealed state, and when the pressure cavity 3 is filled with irrigation water and a certain water pressure is generated, the elastic rings 5 are forced to elastically deform so that the irrigation water enters the three groups of inner ring grooves 2 through the three groups of inner through holes 4 respectively, and the bottom end of the outer insertion rod 1 is provided with three groups of flow-through grooves 6, the top ends of the three groups of flow-through grooves 6 are connected to the three groups of inner ring grooves 2 respectively, and the water outlets of the three groups of flow-through grooves 6 extend to the bottom of the outer surface of the outer insertion rod 1, the top part of the outer surface of the outer insertion rod 1 is provided with three groups of outer connecting pipes 7 connected to the three groups of inner ring grooves 2 respectively, and the top ends of the three groups of outer connecting pipes 7 are connected to the liquid fertilizer conveying systems of different properties on the irrigation robot respectively, so that the liquid fertilizers of different properties can be mixed with the irrigation water entering the inner ring grooves 2, and then discharged into the roots of the crops through the flow-through grooves 6.

[0027] As shown in the figure Figure 1 , Figure 2 In the technical solution, the water outlets of the three groups of flow-through grooves 6 extending to the bottom of the outer surface of the outer insertion rod 1 are arranged from top to bottom in sequence, and the liquid fertilizer conveyed by the outer connecting pipe 7 into the inner ring groove 2 connected to the lowermost water outlet flow-through groove 6 is the fertilizer with relatively deep application depth (liquid potassium fertilizer), and the liquid fertilizer conveyed by the outer connecting pipe 7 into the inner ring groove 2 connected to the uppermost water outlet flow-through groove 6 is the fertilizer with relatively shallow application depth (liquid nitrogen fertilizer):

[0028] So when irrigation and fertilization are performed on crops, the liquid fertilizers of different properties can be conveyed to different depths of the soil layer by the outer insertion rod 1 and the structure thereon for application, so that the balance of crop fertilization is higher, and the effective absorption and utilization rate of the crop roots for fertilizers of different properties is higher.

[0029] In the technical solution, the elastic ring 5 on the inner through hole 4 in the inner ring groove 2 connected to the lowermost position flow-through groove 6 has the smallest elastic strength, and the elastic ring 5 on the inner through hole 4 in the inner ring groove 2 connected to the uppermost position flow-through groove 6 has the largest elastic strength:

[0030] Based on the influence of different humidity soil on water permeability, under the same pressure of irrigation water in pressure chamber 3, the flow-through groove 6 of the lowermost water outlet is first connected to irrigation water to wet the lowermost soil in crop root system and apply liquid potassium fertilizer, and in the process of increasing pressure of irrigation water in pressure chamber 3, irrigation and fertilization are carried out layer by layer upwards, thereby effectively increasing the residence time of irrigation water and fertilizer on it in different depth soil layers to "fix" different properties of fertilizer in the corresponding depth soil layer.

[0031] As shown in Figure 1 , Figure 5 in the technical solution, the water outlets of the three groups of flow-through grooves 6 arranged from top to bottom are located on the same side of the outer surface of the outer plug rod 1, and the direction of the flow-through groove 6 water outlet is opposite to the direction of the crop when irrigation and fertilization are carried out.

[0032] As shown in Figure 1 , Figure 4 in the technical solution, the top of the inner ring groove 2 is provided with a piston 8, and an elastic member 9 is fixedly installed at the top end of the piston 8, and the piston 8 is elastically connected with the top end of the inner ring groove 2 through the elastic member 9, and at the beginning, the piston 8 and the outer connecting conduit 7 coincide with each other to block the flow of liquid fertilizer on the piston 8, and when the inner ring 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 outer connecting conduit 7 and the inner ring groove 2 to make the liquid fertilizer flow into the inner ring groove 2 and mix with the irrigation water on it.

[0033] As shown in Figure 1 , Figure 2 and Figure 4 in the technical solution, the middle part of the outer surface of the outer plug rod 1 is provided with three groups of flow guide pipes 10 provided with first one-way valves, one end of each of the three groups of flow guide pipes 10 is connected with one of the three groups of inner ring grooves 2, and the other end of each of the three groups of flow guide pipes 10 is connected with one of the three groups of outer connecting conduits 7, and three groups of second one-way valves are arranged in the inner part of the three groups of outer connecting conduits 7, thereby the pressure of irrigation water entering the inner ring groove 2 can be divided into three groups, the first group is sent out through the flow-through groove 6, the second group flows upward to press the piston 8 and open the outer connecting conduit 7 for liquid fertilizer transportation, and the third group enters the outer connecting conduit 7 through the flow guide pipe 10 and dilutes the liquid fertilizer on it, so that the liquid fertilizer can be better mixed with the irrigation water in the inner ring groove 2 when it enters the inner ring groove 2.

[0034] As shown in Figure 5As shown, in the technical solution, a plurality of groups of guide grooves 11 arranged in annular array are arranged on the bottom of the outer surface of the outer insertion rod 1, thereby increasing the shear force generated by the outer insertion rod 1 when inserted into the soil, so that the outer insertion rod 1 can be better inserted into the soil, and meanwhile, the arrangement of the guide grooves 11 can ensure that the outer insertion rod 1 is not prone to tilting during the process of being inserted into the soil.

[0035] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent water and fertilizer integrated irrigation robot, comprising an external insertion rod (1), characterized in that: The inside of the outer insertion rod (1) is provided with three groups of annular arrayed and mutually independent inner ring grooves (2), the inside of the outer insertion rod (1) is provided with a pressure cavity (3), the inner wall of the pressure cavity (3) is provided with three groups of helically arranged inner through holes (4) respectively connected to the three groups of inner ring grooves (2), meanwhile, three groups of elastic rings (5) are respectively arranged on the ports of the three groups of inner through holes (4), and three groups of flow-through grooves (6) are arranged at the bottom end of the outer insertion rod (1), the top ends of the three groups of flow-through grooves (6) are respectively connected to the three groups of inner ring grooves (2), and the water outlets of the three groups of flow-through grooves (6) respectively extend to the bottom of the outer surface of the outer insertion rod (1), the top of the outer surface of the outer insertion rod (1) is provided with three groups of outer connecting pipes (7) respectively connected to the three groups of inner ring grooves (2); The water outlets of the three groups of flow-through grooves (6) extending to the bottom of the outer surface of the outer insertion rod (1) are arranged from top to bottom, and the inner ring groove (2) connected to the lowermost water outlet flow-through groove (6) is supplied with a fertilizer with a relatively deep application depth through the outer connecting pipe (7), and the inner ring groove (2) connected to the uppermost water outlet flow-through groove (6) is supplied with a fertilizer with a relatively shallow application depth through the outer connecting pipe (7); The elastic ring (5) on the inner through hole (4) in the inner ring groove (2) connected to the lowermost position flow-through groove (6) has the smallest elastic strength, and the elastic ring (5) on the inner through hole (4) in the inner ring groove (2) connected to the uppermost position flow-through groove (6) has the largest elastic strength. 2.The intelligent water and fertilizer integrated irrigation robot of claim 1, wherein, The water outlets of the three groups of flow-through grooves (6) arranged from top to bottom are located on the same side of the outer surface of the outer insertion rod (1), and the flow-through groove (6) water outlet is directed towards the crops during irrigation and fertilization of the crops. 3.The intelligent water and fertilizer integrated irrigation robot of claim 1, wherein, The top of the inner ring groove (2) is provided with a piston (8), an elastic member (9) is fixedly installed at the top end of the piston (8), the piston (8) is elastically connected to the top end of the inner ring groove (2) through the elastic member (9), at the beginning, the piston (8) and the outer connecting pipe (7) coincide with each other to block the flow of the liquid fertilizer on the piston (8), when the inner ring 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 outer connecting pipe (7) and the inner ring groove (2) to make the liquid fertilizer flow into the inner ring groove (2) and mix with the irrigation water thereon. 4.The intelligent water and fertilizer integrated irrigation robot of claim 3, characterized in that, The middle part of the outer surface of the outer insertion rod (1) is provided with three groups of flow guide pipes (10) internally provided with first one-way valves, one end of each of the three groups of flow guide pipes (10) is connected to the three groups of inner ring grooves (2), and the other end of each of the three groups of flow guide pipes (10) is connected to the three groups of outer connecting pipes (7), and three groups of second one-way valves are respectively arranged in the inner parts of the three groups of outer connecting pipes (7). 5.The intelligent water and fertilizer integrated irrigation robot of claim 1, wherein, The bottom of the outer surface of the outer insertion rod (1) is provided with a plurality of groups of annular arrayed guide grooves (11).

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