Intelligent irrigation sprinkler

Abstract

This invention discloses an intelligent irrigation sprinkler, belonging to the field of irrigation device technology. Compared with existing irrigation sprinklers used in farmland and greenhouses, this invention, when water flows into the sprinkler body, drives the impeller assembly to rotate. During the rotation of the impeller assembly, the sleeve moves back and forth along its axis within the sprinkler body. During the reciprocating sliding of the sleeve, several telescopic components drive several spheres to deflect. During the reciprocating deflection, the angle between the jet holes on the spheres and the axis of the sprinkler body changes periodically, ultimately achieving the function of uniformly spraying irrigation outward with the sprinkler body as the center. Compared with existing intelligent irrigation sprinklers, this invention has a simple structure, low manufacturing cost, and can be installed on a large scale in pipelines. The pressure detection module obtains the water supply pressure inside the sprinkler body and controls the water pump's water supply level, thereby adjusting the jet hole elevation angle change period and jet radius to achieve intelligent irrigation.

Description

Technical Field

[0001] This invention relates to the field of agricultural irrigation equipment technology, and in particular to an intelligent irrigation nozzle. Background Technology

[0002] With the development of intelligent agriculture, the traditional method of irrigating farmland with water hoses is gradually being replaced by pre-buried irrigation networks and sprinklers installed on these networks. However, most existing sprinklers are single-nozzle designs, and once installed, the spray angle is fixed, resulting in a small spray range. To address this issue, invention patent application number CN202010218485.7 proposes an intelligent agricultural self-generated variable-angle irrigation sprinkler, comprising a lower shell, a middle shell, an upper shell, a throttling orifice, an outer core, and an inner core. The lower shell, middle shell, and inner core are coaxially rotatably mounted on the lower shell. The upper shell is coaxially fixedly mounted with the middle shell. The throttling orifice is coaxially fixedly mounted with the lower shell. The lower part of the outer core is rotatably mounted on the upper part of the throttling orifice, and the upper part of the outer core is mounted on the middle shell. The inner core is coaxially arranged inside the outer core. A variable-pitch motor is installed in the upper shell, and a screw is coaxially mounted on the main shaft of the variable-pitch motor. The screw and nut are connected by a threaded fit; eight water outlets are evenly distributed in the center of the inner core; each upper connecting rod is hinged to the upper part of the corresponding nozzle, the lower part of the nozzle is hinged to one end of the lower connecting rod, and the other end of the lower connecting rod is hinged to the hinge rod on the outer core. The self-generating function is achieved by setting a generator impeller assembly and a turbine generator, which supplies power to the pitch motor and rotary motor. The pitch motor controls the spray angle, and the rotary motor controls the rotation of multiple nozzles. The above technical solution involves equipping the nozzle body with a generator impeller assembly, a turbine generator, a pitch motor, a rotary motor, and corresponding transmission structures. The generator impeller assembly and turbine generator also need to be internally connected to the pitch motor and rotary motor and externally connected to a controller. The overall structure is complex and expensive. Large-scale installation and use will bring extremely high installation and maintenance costs. Summary of the Invention

[0003] The purpose of this invention is to propose an intelligent irrigation sprinkler to solve the problems of complex structure and high operation and maintenance costs of traditional intelligent irrigation sprinklers.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A smart irrigation sprinkler head includes a sprinkler head body, one end of which is connected to a pipe network via a threaded connector, and the other end of which is a tapered end. A sliding sleeve is connected to the tapered end, and a pressure detection module capable of monitoring the internal pressure of the sprinkler head body is mounted on the top of the sliding sleeve. The pressure detection module is connected to a controller, which is used to control the water pump speed.

[0006] The drive assembly includes an impeller assembly capable of rotating under the propulsion of water flow and a sleeve, the impeller assembly being capable of driving the sleeve to slide back and forth along the axial direction of the nozzle body within the nozzle body, and the top end of the sleeve being at least partially inserted into the sliding sleeve;

[0007] Several spraying components are assembled in a ring on a conical end. Each spraying component includes a sphere rotatably disposed on the side wall of the conical end. At least a portion of each side of the sphere protrudes from the side wall of the conical end. The sphere is also provided with a jet hole that connects the inside and outside of the side wall of the conical end. The sphere located on the inside of the conical end is hinged to a sleeve through a telescopic member.

[0008] Compared to existing smart irrigation sprinklers, especially those used for irrigation of farmland and greenhouses, this new method involves water flowing into the sprinkler body, causing the impeller assembly to rotate. During this rotation, the impeller assembly drives a sleeve to reciprocate along its axis within the sprinkler body. As the sleeve slides back and forth, it causes several spheres to deflect via several telescopic components. During this reciprocating deflection, the angle between the jet orifices on the spheres and the axis of the sprinkler body changes periodically. This means the jet elevation angle of the multiple annularly distributed spheres changes periodically, ultimately achieving the function of uniformly spraying irrigation water outwards from the sprinkler body. Compared to existing smart irrigation sprinklers, this method has a simpler structure, lower manufacturing cost, and can be mass-produced and installed in pipelines. A pressure detection module obtains the water supply pressure within the sprinkler body and controls the water pump's water supply level, thereby adjusting the jet orifice elevation angle change period and the jet radius to achieve intelligent irrigation.

[0009] As a further description of the above technical solution:

[0010] The nozzle body has an annular protrusion, and the inner circumferential surface of the annular protrusion is recessed with an annular groove. The impeller assembly includes an annular cover, and the outer circumference of the cover is provided with a retaining ring that is rotatably engaged in the annular groove. An impeller is coaxially fixedly installed inside the cover, and a drive shaft is fixedly connected to the side of the impeller shaft facing the conical end.

[0011] As a further description of the above technical solution:

[0012] The connection between the annular protrusion and the inner wall of the nozzle body is an arc-shaped guide surface.

[0013] As a further description of the above technical solution:

[0014] The nozzle body is also equipped with a damping assembly. There is a receiving gap between the retaining ring and the annular retaining groove. The annular retaining groove is connected to the outside through a sliding groove and a threaded hole arranged radially along the nozzle body. The damping assembly includes an arc-shaped damping plate, which is installed in the receiving gap. The damping plate is connected to a bolt through a rotating joint. The rotating joint is placed in the sliding groove, and the bolt is installed on the threaded hole. The bolt, the rotating joint, and the damping plate constitute a damping assembly for the rotation of the retaining ring.

[0015] As a further description of the above technical solution:

[0016] The impeller assembly also includes a drive rod connected to the drive shaft. The outer peripheral wall of the drive rod is recessed with a guide groove. The guide groove is a spiral groove with two opposite spirals and smooth communication between the first and second ends. The sleeve is fitted onto the drive rod. At the same time, the inner wall of the sleeve is provided with a push head that is inserted into the guide groove. When the drive rod rotates, the push head can drive the sleeve to slide back and forth under the drive of the side wall of the guide groove.

[0017] As a further description of the above technical solution:

[0018] A guide block is also fitted at one end of the drive shaft near the drive rod. The guide block is truncated cone-shaped with the narrow end facing downwards.

[0019] As a further description of the above technical solution:

[0020] The sleeve has a cylindrical slide rail groove 1 inside, and the top end of the sleeve is at least partially inserted into the slide rail groove 1. The inner side wall of the sleeve also has four slide rail grooves 2 that extend axially and are symmetrically arranged. The outer side wall of the sleeve is fixedly connected with two parallel slide rails along the axial direction. The two slide rails are arranged opposite each other about the axis of the sleeve, and at least part of the slide rails are inserted into the slide rail groove 1.

[0021] As a further description of the above technical solution:

[0022] The conical end sidewall has several spherical grooves arranged in a ring. The center of the spherical groove is located within the thickness range of the conical end sidewall, and both sides of the spherical groove penetrate the conical end sidewall. The sphere is rotatably installed in the spherical groove, and a sealing ring is installed on the inner edge of the spherical groove at the conical end sidewall.

[0023] As a further description of the above technical solution:

[0024] The outer end of the jet hole is provided with an internal thread, and the jet assembly also includes a jet nozzle, one end of which is provided with a threaded connector two that mates with the internal thread.

[0025] As a further description of the above technical solution:

[0026] A cross brace is radially fixedly installed on the inner end of the jet hole. The cross brace is fixedly connected to one end of the telescopic component. The other end of the telescopic component is hinged to the outer periphery of the bottom end of the sleeve with an adapter seat. The telescopic component is a telescopic rod.

[0027] As a further description of the above technical solution:

[0028] The pressure detection module is connected to the controller, which is used to control the water pump speed.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0030] This invention optimizes the transmission structure so that when water flows into the nozzle body, it drives the impeller assembly to rotate. During the rotation of the impeller assembly, the sleeve moves back and forth along its axis within the nozzle body. During the reciprocating sliding of the sleeve, several telescopic components drive several spheres to deflect. During the reciprocating deflection process, the angle between the jet holes on the spheres and the axis of the nozzle body changes periodically. That is, the jet elevation angle of the jet holes of the multiple spheres distributed in a ring changes periodically. Ultimately, it achieves the function of uniformly spraying irrigation outward with the nozzle body as the center. Compared with existing intelligent irrigation nozzles, it has a simple structure, low manufacturing cost, and can be installed on a large scale in pipeline networks. Attached Figure Description

[0031] Figure 1 A three-dimensional illustration of a smart irrigation sprinkler head provided according to an embodiment of the present invention is shown. Figure 1 ;

[0032] Figure 2 A three-dimensional illustration of a smart irrigation sprinkler head provided according to an embodiment of the present invention is shown. Figure 2 ;

[0033] Figure 3 A partial front view of the sprinkler body of the intelligent irrigation sprinkler provided according to an embodiment of the present invention is shown.

[0034] Figure 4 A half-sectional perspective view of the nozzle body of the intelligent irrigation sprinkler provided according to an embodiment of the present invention is shown;

[0035] Figure 5 A half-sectional perspective view of the nozzle body provided according to an embodiment of the present invention is shown;

[0036] Figure 6 A perspective view of a drive assembly, several injection assemblies, several telescopic components, and a damping assembly provided according to an embodiment of the present invention is shown.

[0037] Figure 7 A partial cross-sectional perspective view of the drive assembly, the injection assembly, and the telescopic component installation provided according to an embodiment of the present invention is shown.

[0038] Figure 8 A partially separated half-section perspective view of a drive component provided according to an embodiment of the present invention is shown.

[0039] Legend:

[0040] Nozzle body; 11. Conical end; 111. Spherical groove; 112. Sealing ring; 12. Sliding sleeve; 121. Slide rail groove one; 122. Slide rail groove two; 13. Threaded joint one; 14. Annular protrusion; 141. Annular groove; 142. Slide groove; 143. Threaded hole;

[0041] Pressure detection module;

[0042] 30. Drive assembly; 31. Cover; 32. Impeller; 33. Drive shaft; 34. Guide block; 35. Drive rod; 351. Guide groove; 36. Sleeve; 37. Propeller head; 38. Slide rail;

[0043] 40. Spray assembly; 41. Sphere; 411. Jet orifice; 412. Internal thread; 413. Cross brace; 42. Spray nozzle; 421. Threaded connector II;

[0044] 50. Telescopic components;

[0045] 60. Damping assembly; 61. Bolt; 62. Rotary joint; 63. Damping plate. Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] like Figures 1-8 As shown, the intelligent irrigation sprinkler proposed in this invention includes a sprinkler body 10, which is made of stainless steel. One end of the sprinkler body 10 is installed on a pipeline through a threaded connector 13. The pipeline is generally semi-buried or overhead in farmland or greenhouses. The other end of the sprinkler body 10 is a conical end 11, that is, the top end is conical. A sliding sleeve 12 is integrally formed at the top of the conical end 11. A pressure detection module 20 is installed at the top of the sliding sleeve 12. The pressure detection module 20 can detect the water supply pressure inside the sprinkler body 10 and transmit the pressure signal to the controller. The controller can control the water pump speed, that is, control the water supply pressure.

[0048] A sleeve 36 is inserted into the bottom end of the sliding sleeve 12. The sleeve 36 cooperates with the impeller assembly to form a drive assembly 30. The drive assembly 30 can control the spray angle of several annularly mounted spray assemblies 40 on the conical end 11. Specifically, several telescopic members 50 are connected to the outer side of the bottom end of the sleeve 36. The telescopic member 50 is a telescopic rod, that is, the bottom end of the sleeve 36 is hinged to one end of the telescopic member 50 through several hinge seats. The spray assembly 40 includes a ball 41. The ball 41 has a through jet hole 411 through its center. The two ends of the jet hole 411 are located on the inner and outer sides of the side wall of the conical end 11, respectively. The other end of the telescopic member 50 is fixed to the ball 41 on the inner side of the side wall of the conical end 11. The impeller assembly is installed inside the nozzle body 10 and can rotate using the thrust of the water flow to drive the sleeve 36 to reciprocate within the nozzle body 10. During the reciprocating motion, the sleeve 36 drives the ball 41 to deflect periodically through the telescopic component 50. When the ball 41 deflects, the jet angle of the jet hole 411, i.e., the angle between the axis of the jet hole 411 and the axis of the nozzle body 10, changes periodically. This enables the function of controlling the periodic deflection and spraying of several jet holes 411. The water supply pressure inside the nozzle body is obtained through the pressure detection module, and the water supply level of the water pump is controlled to adjust the jet hole elevation angle change period and jet radius, thereby realizing intelligent irrigation.

[0049] Detailed, such as Figures 3-8 As shown, in order to make full use of the water supply flow while minimizing the loss of water kinetic energy, the nozzle body 10 has an annular protrusion 14. The purpose of the annular protrusion 14 is to increase the flow velocity of the water flowing over the inner circumferential surface. The inner circumferential surface of the annular protrusion 14 is recessed with an annular groove 141. The impeller assembly includes an annular cover 31. The outer circumference of the cover 31 is provided with a retaining ring that is rotatably locked in the annular groove 141. An impeller 32 is coaxially fixedly installed inside the cover 31. A drive shaft 33 is fixedly connected to the side of the impeller 32 facing the conical end 11. When the water flows over the inner circumferential surface, it will push the impeller 32 to rotate. The rotation of the impeller 32 drives the drive shaft 33 to rotate. The cover 31 can maintain the stability of the impeller rotation.

[0050] In more detail, to achieve unidirectional rotation to control the reciprocating motion of the sleeve 36, a drive rod 35 is fixedly connected to the drive shaft 33. The sleeve 36 passes through the drive rod 35. The outer peripheral wall of the drive rod 35 is recessed with a guide groove 351. The guide groove 351 is a spiral groove with two opposite spirals and smooth communication between the first and second ends. The sleeve 36 is fitted onto the drive rod 35. At the same time, the inner wall of the sleeve 36 is provided with a push head 37 that is inserted into the guide groove 351. When the drive rod 35 rotates, the push head 37 can drive the sleeve 36 to slide back and forth under the drive of the side wall of the guide groove 351. Finally, the power to deflect the ball 41 is obtained by using water flow. No other power generation or other relay control equipment is required, which simplifies the structure and reduces manufacturing costs.

[0051] In more detail, the connection between the annular protrusion 14 and the inner wall of the nozzle body 10 is an arc-shaped guide surface. By setting the arc-shaped guide surface, the water flow resistance loss is reduced.

[0052] In more detail, a guide block 34 is also fitted on one end of the drive shaft 33 near the drive rod 35. The guide block 34 is truncated cone-shaped with the narrow end facing downward. The purpose of setting the guide block 34 is to avoid the water flow directly hitting the sleeve 36 and increasing the resistance when the sleeve moves downward, so that the movement speed of the sleeve is more balanced, that is, the spray time corresponding to the control of the spray angle is also balanced.

[0053] In more detail, the sliding sleeve 12 has a cylindrical slide rail groove 121 inside. The top end of the sleeve 36 is at least partially inserted into the slide rail groove 121. The limiting effect of the slide rail groove 121 increases the stability of the sleeve 36. At the same time, the inner sidewall of the sliding sleeve 12 also has four symmetrically arranged slide rail grooves 122 extending axially. The outer sidewall of the sleeve 36 is axially fixedly connected to two parallel slide rails 38. The two slide rails 38 are arranged opposite each other about the axis of the sleeve 36, and at least partially inserted into the slide rail groove. Inside the first 121, by setting a slide rail 38 on the outside of the sleeve 36, torsional force is avoided under the action of the push head 37, that is, to ensure the stability of the hinge point between the sleeve 36 and the telescopic member 50, to prevent wear and increase the service life of the equipment. In addition, the remaining two slide rail grooves 122 are used for the inflow and outflow of water on the inside during the sliding of the sleeve 36 in the slide rail groove 121, to ensure the communication state with the nozzle body 10, so that the pressure detection module 20 can effectively detect the water supply pressure in the nozzle body 10.

[0054] like Figures 3-6 As shown, the nozzle body 10 is also equipped with a damping assembly 60. The damping assembly 60 includes an arc-shaped damping plate 63. There is also a receiving gap between the retaining ring and the annular retaining groove 141. The damping plate 63 is installed in the receiving gap. One arc-shaped surface of the damping plate 63 abuts against the retaining ring. The annular retaining groove 141 is connected to the outside through a sliding groove 142 and a threaded hole 143 arranged radially along the nozzle body 10. The damping plate 63 is connected to a bolt 61 through a rotating joint 62. The rotating joint 62 is placed in the sliding groove 142, and the bolt 61 is fitted on the threaded hole 143. The purpose of setting the damping assembly 60 is to control the rotation frequency of the cover 31 and the impeller 32. Because the local environment in farmland or greenhouse may be different, different spraying coverage cycles can be controlled by tightening or loosening the bolt 61 for different crops, making it more flexible to use.

[0055] like Figures 3-6As shown, a number of spherical grooves 111 arranged in a ring are provided on the side wall of the conical end 11. The center of the spherical groove 111 is located within the thickness range of the side wall of the conical end 11, and both sides of the spherical groove 111 penetrate the side wall of the conical end 11. The sphere 41 is rotatably installed in the spherical groove 111. A sealing ring 112 is installed on the inner edge of the side wall of the conical end 11. By adding the sealing ring 112, water leakage can be prevented from flowing out between the sphere 41 and the spherical groove 111. The outer end of the jet hole 411 is provided with an internal thread 412. The spray assembly 40 also includes a spray nozzle 42, which can be an atomizing nozzle. Depending on the specific application scenario, one end of the spray nozzle 42 is provided with a threaded connector 421 that mates with the internal thread 412. By providing an internal thread 412 on the outer end of the jet hole 411, different types of spray nozzles 42 can be easily replaced, increasing the application scenarios and meeting the sprinkler irrigation needs of different outdoor and greenhouse applications.

[0056] Meanwhile, a cross brace 413 is radially fixedly installed on the inner end of the jet hole 411. The cross brace 413 is fixedly connected to one end of the telescopic component 50, that is, fixedly connected to one end of the telescopic rod. The telescopic rod deflects and moves under the drive of the sleeve 36, thereby driving the cross brace 413 and the ball 41 to deflect, so as to realize the function of adjusting the spray angle.

[0057] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A smart irrigation sprinkler comprising a sprinkler body (10) connected to a pipe network at one end by a threaded joint one (13), characterized in that: The other end of the nozzle body (10) is a conical end (11), and a sliding sleeve (12) is connected to the conical end (11). The top of the sliding sleeve (12) is equipped with a pressure detection module (20) that can monitor the pressure inside the nozzle body (10). The pressure detection module (20) is connected to the controller, which is used to control the water pump speed. The drive assembly (30) includes an impeller assembly capable of rotating under the propulsion of water flow and a sleeve (36). The impeller assembly is capable of driving the sleeve (36) to slide back and forth along the axial direction of the nozzle body (10) within the nozzle body (10), and the top end of the sleeve (36) is at least partially inserted into the sliding sleeve (12). Several spraying components (40) are assembled in a ring on the conical end (11). Each spraying component (40) includes a sphere (41) rotatably disposed on the side wall of the conical end (11). At least a portion of each side of the sphere (41) protrudes from the side wall of the conical end (11). The sphere (41) is also provided with a jet hole (411) that connects the inside and outside of the side wall of the conical end (11). The sphere (41) located inside the conical end (11) is hinged to the sleeve (36) through a telescopic member (50). The impeller assembly also includes a drive rod (35) connected to the drive shaft (33). The outer peripheral wall of the drive rod (35) is recessed with a guide groove (351). The guide groove (351) is a spiral groove with two spirals in opposite directions and the first and second ends are smoothly connected. The sleeve (36) is fitted on the drive rod (35). At the same time, the inner wall of the sleeve (36) is provided with a push head (37) inserted into the guide groove (351). When the drive rod (35) rotates, the push head (37) can drive the sleeve (36) to slide back and forth under the drive of the side wall of the guide groove (351). The tapered end (11) has several spherical grooves (111) arranged in a ring on its side wall. The center of the spherical groove (111) is located within the thickness range of the side wall of the tapered end (11), and both sides of the spherical groove (111) penetrate the side wall of the tapered end (11). The sphere (41) is rotatably installed in the spherical groove (111), and a sealing ring (112) is installed on the inner edge of the side wall of the tapered end (11).

2. The intelligent irrigation sprinkler head of claim 1, wherein, The nozzle body (10) has an annular protrusion (14) inside. The annular protrusion (14) has an annular groove (141) recessed on the inner circumferential surface. The impeller assembly includes an annular cover (31). The outer circumference of the cover (31) is provided with a retaining ring that is rotatably fitted in the annular groove (141). An impeller (32) is coaxially fixedly installed inside the cover (31). A drive shaft (33) is fixedly connected to the side of the impeller (32) facing the conical end (11).

3. The intelligent irrigation sprinkler head of claim 2, wherein, The connection between the annular protrusion (14) and the inner wall of the nozzle body (10) is an arc-shaped guide surface.

4. The intelligent irrigation sprinkler head of claim 2, wherein, The nozzle body (10) is also equipped with a damping assembly (60). There is a receiving gap between the retaining ring and the annular retaining groove (141). The annular retaining groove (141) is connected to the outside through a sliding groove (142) and a threaded hole (143) arranged radially along the nozzle body (10). The damping assembly (60) includes an arc-shaped damping plate (63). The damping plate (63) is fitted in the receiving gap. The damping plate (63) is connected to a bolt (61) through a rotating joint (62). The rotating joint (62) is placed in the sliding groove (142). The bolt (61) is fitted on the threaded hole (143).

5. The intelligent irrigation sprinkler head according to claim 4, characterized in that, The drive shaft (33) is also fitted with a guide block (34) at one end near the drive rod (35). The guide block (34) is truncated cone-shaped with the narrow end facing downward.

6. The intelligent irrigation sprinkler head according to claim 5, characterized in that, The sliding sleeve (12) is provided with a cylindrical slide rail groove (121). The top end of the sleeve (36) is at least partially fitted into the slide rail groove (121). The inner side wall of the sliding sleeve (12) is also provided with four slide rail grooves (122) extending axially and symmetrically. The outer side wall of the sleeve (36) is fixedly connected with two parallel slide rails (38) along the axial direction. The two slide rails (38) are arranged opposite to each other about the axis of the sleeve (36), and the slide rails (38) are at least partially fitted into the slide rail groove (121).

7. The intelligent irrigation sprinkler head according to claim 6, characterized in that, The outer end of the jet hole (411) is provided with an internal thread (412), and the jet assembly (40) also includes a jet nozzle (42), one end of which is provided with a threaded connector (421) that mates with the internal thread (412).

8. The intelligent irrigation sprinkler head according to claim 7, characterized in that, A cross brace (413) is fixedly installed radially on the inner end of the jet hole (411). The cross brace (413) is fixedly connected to one end of the telescopic member (50). The other end of the telescopic member (50) is hinged to the outer periphery of the bottom end of the sleeve (36). The telescopic member (50) is a telescopic rod.

Images