CN114289204B - Rocker arm type spray head and spray irrigation method - Google Patents
Rocker arm type spray head and spray irrigation method Download PDFInfo
- Publication number
- CN114289204B CN114289204B CN202111470807.8A CN202111470807A CN114289204B CN 114289204 B CN114289204 B CN 114289204B CN 202111470807 A CN202111470807 A CN 202111470807A CN 114289204 B CN114289204 B CN 114289204B
- Authority
- CN
- China
- Prior art keywords
- rocker arm
- nozzle assembly
- spray
- spray pipe
- hollow shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Landscapes
- Catching Or Destruction (AREA)
- Nozzles (AREA)
Abstract
The invention relates to a rocker arm type spray head and a spray irrigation method, which comprises a hollow shaft, a spray pipe, a rocker arm and a rocker arm spring, wherein the bottom of the spray pipe is rotationally connected with the hollow shaft, the bottom of the side of the spray pipe is provided with an auxiliary nozzle assembly, the top end of the spray pipe is provided with a main nozzle assembly, the main nozzle assembly and the auxiliary nozzle assembly both comprise nozzles which are communicated with the spray pipe and can be rotationally adjusted relative to the spray pipe, the spray pipe is provided with a hit block and a rocker arm shaft, the rocker arm comprises a first arm rod and a second arm rod, the rocker arm is provided with a hit block, the first arm rod is provided with a bias flow plate and a guide plate, the spray irrigation method adopts the rocker arm type spray head to spray irrigation, the nozzle elevation angle of the main nozzle assembly and the auxiliary nozzle assembly is adjusted according to wind force and working pressure, and the rocker arm type spray head for full circle spray or fan spray can obtain maximum range by adjusting the main jet angle and the auxiliary jet angle, reduce spray irrigation strength, promote spray irrigation uniformity and reduce cost, satisfy good wind resistance under normal working pressure, and good atomization level under low pressure.
Description
Technical Field
The invention belongs to the field of sprinkling irrigation equipment, and particularly relates to a rocker arm type sprinkler head and a sprinkling irrigation method.
Background
The sprinkling irrigation is an irrigation mode that pressurized water formed by means of water pump pressurization or natural fall is conveyed to a spray head through a pipeline, then the spray head sprays the pressurized water into the air to form fine water drops or mist to be sprinkled on plants or the ground, and has the advantages of saving labor, water, land and energy, increasing yield, not damaging the soil structure, adjusting the ground climate, not being limited by the terrain and the like, and is widely applied to the fields of gardens, agriculture and the like. The sprinkler irrigation equipment is generally composed of a power device, a water pipe, a monitoring system and a nozzle, wherein the rocker-arm nozzle is an important irrigator in the irrigation equipment.
The rocker arm type spray head in the prior art singly adopts an angle fixed type spray nozzle to irrigate water at the end part of a spray body, and has the following problems: (1) For traditional sprinkling irrigation, under normal working pressure, the wind speed has a larger influence on the utilization coefficient of irrigation water and the combined spacing of the rocker-arm type sprinkler, namely, the higher the wind speed is, the lower the utilization coefficient of irrigation water is, the smaller the combined spacing of the sprinkler is, so that the water-saving effect of the sprinkler is poor and the equipment cost is increased; (2) The atomization degree of the spray head can be reduced by reducing the working pressure, the diameter of liquid drops is increased, the wind resistance of the spray head is improved, but the radial water distribution of the rocker arm type spray head is poor, a large amount of water is gathered at the end of a range, a very small amount of water exists in the middle of the range, a local overspray phenomenon is caused, the maximum range proper irrigation strength and radial water distribution uniformity of the spray nozzle are difficult to meet only by adjusting the working pressure, and therefore the yield and quality of crops are influenced; (3) In the prior art, a water dispersing device is adopted to impact jet flow of a nozzle so as to improve atomization performance, but the structure is complex, and the design and manufacturing cost are increased. Therefore, it is necessary to provide a rocker arm type sprinkler head and a sprinkling irrigation method, which can not only satisfy good wind resistance under normal working pressure, but also ensure good atomization level under low pressure.
Disclosure of Invention
The invention aims to solve at least one of the technical problems to a certain extent, and therefore, the invention provides a rocker arm type spray head and a spray irrigation method, wherein a main nozzle assembly and an auxiliary nozzle assembly are used for adjusting main jet flow and auxiliary jet flow through nozzles which can be adjusted in a rotating way relative to a spray pipe, a deflector plate and a deflector plate are adjusted to correspond to the main nozzle assembly to ensure the spray driving, so that the maximum range can be obtained, the spray irrigation strength is reduced, the spray irrigation uniformity is improved, the cost is reduced, the good wind resistance under the normal working pressure is met, and the good atomization level under the low pressure is ensured.
The technical scheme of the invention is as follows:
the rocker arm type spray head comprises a hollow shaft, a spray pipe, a rocker arm and a rocker arm spring, wherein the bottom of the spray pipe is rotationally connected with the hollow shaft, the side bottom of the spray pipe is provided with a secondary nozzle assembly, the top end of the spray pipe is provided with a main nozzle assembly which is arranged on the same side as the secondary nozzle assembly, and the main nozzle assembly and the secondary nozzle assembly both comprise nozzles which are communicated with the spray pipe and can be rotationally adjusted relative to the spray pipe;
the jet pipe is provided with a hit block and a rocker arm shaft, the rocker arm comprises a first arm rod and a second arm rod which are connected in an adjustable mode, the rocker arm is provided with a hit block which is in limit fit with the hit block, the first arm rod is provided with a deflector and a guide plate which are arranged corresponding to the main nozzle assembly, the rocker arm spring is sleeved outside the rocker arm shaft, the second arm rod is sleeved outside the rocker arm spring, and two ends of the rocker arm spring are connected with the rocker arm shaft and the rocker arm respectively.
According to the rocker arm type spray head, preferably, the hollow shaft is internally provided with the hollow shaft sleeve connected with the spray pipe, the antifriction sealing ring and the V-shaped sealing ring are arranged between the hollow shaft sleeve and the hollow shaft, the sand prevention spring positioned between the spray pipe and the hollow shaft is arranged outside the hollow shaft sleeve, and the spray pipe is internally provided with the current stabilizer which is arranged close to the main nozzle assembly.
In the above rocker arm type spray head, preferably, the main nozzle assembly and the auxiliary nozzle assembly each further comprise a fixing member and a sealing member which are communicated with the spray pipe, the fixing member is detachably connected with the spray pipe and the sealing member, a rubber seal is arranged in the sealing member, the outer wall of one end of the nozzle is in a spherical structure and can rotate relative to the rubber seal in the rubber seal, and the other end of the nozzle extends to the outside of the sealing member; the rubber seal outer wall sealing piece is in interference fit with the inner wall of the rubber seal outer wall sealing piece, a first boss and a second boss are arranged on the rubber seal, the first boss is in limit fit with the fixing piece and the sealing piece, and the second boss is in interference fit with the spherical surface of the nozzle; the end part of the rubber seal is provided with a limiting ring, the limiting ring is in limiting fit with the sealing piece, and the inner wall of the limiting ring is in spherical surface fit with the nozzle.
According to the rocker arm type spray head, preferably, the first arm rod and the second arm rod are provided with the corresponding connecting holes, the striking block is provided with the third boss limited by the first arm rod or the second arm rod, and the third boss is provided with the bolt penetrating through the connecting holes.
Above-mentioned rocking arm formula shower nozzle, preferably, be equipped with the locating part on the hollow shaft, be equipped with the reversal piece on the second armed lever, be equipped with the commutator on the spray tube, the commutator is used for cooperating, drive spray tube around hollow shaft reversing motion with locating part and reversal piece, the locating part includes two spacing arms, the commutator includes reversing seat, pendulum piece and folding driving lever, the reversing seat links to each other with the shower nozzle, be equipped with the first screw that passes the pendulum piece and link to each other with the reversing seat on the pendulum piece, the pendulum piece can with the spacing cooperation of reversal piece, be equipped with the pendulum spring between folding driving lever one end and the pendulum piece, folding driving lever other end lateral wall can with two spacing arms spacing cooperation, be equipped with on the folding driving lever and pass folding driving lever, the second screw that links to each other with the reversing seat.
A spray irrigation method adopts the rocker arm type spray head to spray irrigation, the elevation angle theta 1 of the nozzle of the main nozzle assembly is adjusted to be 20-35 degrees according to wind power and working pressure, the deflector and the deflector are correspondingly adjusted to correspond to the main nozzle assembly, and the elevation angle of the nozzle of the auxiliary nozzle assembly is adjusted.
A method of sprinkling irrigation as described above, preferably, specifically:
when the rocker arm type spray head is in the wind power of less than or equal to 2 levels and the rated working pressure is-70% of the rated working pressure, the elevation angle theta 1 of the nozzle of the main nozzle assembly is 30-35 degrees; when the rocker arm type spray head is under the rated working pressure of 2-4 stages of wind power and 70% of rated working pressure, the elevation angle theta 1 of the nozzle of the main nozzle assembly is 20-25 degrees; when the rocker arm type spray head is under the rated working pressure less than 70%, the elevation angle of the nozzle of the auxiliary nozzle assembly is adjusted to enable the auxiliary nozzle assembly to be intersected with the jet flow of the main nozzle assembly, and the tangential included angle theta 2 at the intersection of the jet flows of the main nozzle assembly and the auxiliary nozzle assembly is less than or equal to 45 degrees.
Compared with the prior art, the invention has the beneficial effects that:
the rocker arm type spray head is matched with the hit block under the torsion of the rocker arm spring by the action of jet flow of the nozzle of the main nozzle assembly, the deflector and the guide plate of the rocker arm, so that the spray pipe can be sprayed in a full circle around the hollow shaft; when the jet flow of the nozzle of the main nozzle assembly acts on the rocker arm, the reverser is matched with the limiting piece and the reversing block to drive the jet pipe to reversing motion around the hollow shaft, so that the fan-shaped spray of the nozzle is realized; the spherical surface of the nozzle of the main nozzle component and the nozzle of the auxiliary nozzle component can rotate in a sealing manner relative to rubber, the nozzle is adjusted by rotating relative to the spray pipe, the main jet flow and the auxiliary jet flow are adjusted, and the corresponding adjusting deflector and the deflector correspond to the main nozzle component to ensure the spraying driving, so that the spray driving device has the following advantages:
(1) The maximum range can be obtained by adjusting the elevation angle of the nozzle of the main nozzle assembly, the sprinkling irrigation strength is reduced, the sprinkling irrigation pipeline spacing is increased, and the pipeline investment in a pipeline sprinkling irrigation system is reduced; (2) The radial water quantity of the main nozzle assembly can be flexibly supplemented by adjusting the elevation angle of the nozzle of the auxiliary nozzle assembly, so that the effect of improving the uniformity of sprinkling irrigation is achieved; (3) The wind resistance is achieved when the wind speed is high by adjusting the elevation angles of the nozzles of the main nozzle assembly and the auxiliary nozzle assembly; (4) The nozzle elevation angles of the main nozzle assembly and the auxiliary nozzle assembly are adjusted, so that the auxiliary nozzle assembly and jet flow of the main nozzle assembly are intersected and impacted under the rated working pressure less than 70%, and the atomizing performance of the nozzle under the low working pressure is improved; (5) The jet flow of the auxiliary nozzle component and the jet flow of the main nozzle component intersect and collide, the effect is equivalent to that of the existing water dispersing device, the water dispersing device can be omitted by adopting the structure, and the design cost and the manufacturing cost of the spray head are reduced.
In conclusion, the rocker arm type spray head and the spray irrigation method meet the requirements of good wind resistance under normal working pressure and can ensure good atomization level under low pressure.
Drawings
Fig. 1 is a structural diagram of embodiment 1 of the present invention.
Fig. 2 is a rear perspective view of embodiment 1 of the present invention.
FIG. 3 is a cross-sectional view showing the construction of the full circle spray according to example 1 of the present invention.
Fig. 4 is an enlarged view of a part of the structure of fig. 3A.
Fig. 5 is a state diagram of a diverter i for fan spray according to example 1 of the present invention.
Fig. 6 is a state diagram of a commutator ii for fan-shaped spray according to example 1 of the present invention.
FIG. 7 is an assembly view of a main nozzle assembly and a spout according to embodiment 1 of the present invention.
Fig. 8 is a perspective view of a secondary nozzle assembly according to embodiment 1 of the present invention.
Fig. 9 is a perspective view of a rocker arm according to embodiment 1 of the present invention.
Fig. 10 is a perspective view of a striking block according to embodiment 1 of the present invention.
In the figure: hollow shaft 1, nozzle 2, rocker arm 3, first arm 31, second arm 32, deflector 33 and deflector 34, connection hole 35, reversing block 36, rocker arm spring 4, secondary nozzle assembly 5, primary nozzle assembly 6, nozzle 561, fixture 562, seal 563, rubber seal 564, first boss 565, second boss 566, stop ring 567, commutator 7, reversing seat 71, rocker block 72, folding deflector 73, first deflector 731 and second deflector 732, hex bolt 733, first screw 74, rocker block spring 75, second screw 76, strike block 8, third boss 81, bolt 82, struck block 9, rocker arm shaft 10, hollow sleeve 11, antifriction seal 12, V-shaped seal 13, sand control spring 14, stabilizer 15, stop 16, stop arm 161.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
1-10 show a preferred embodiment of the rocker arm type spray head, the rocker arm type spray head comprises a hollow shaft 1, a spray pipe 2, a rocker arm 3 and a rocker arm spring 4, the bottom of the spray pipe 2 is rotationally connected with the hollow shaft 1, an auxiliary nozzle assembly 5 is arranged at the bottom of the side of the spray pipe 2, a main nozzle assembly 6 which is arranged at the same side as the auxiliary nozzle assembly 5 is arranged at the top end part of the spray pipe 2, and the main nozzle assembly 6 and the auxiliary nozzle assembly 5 both comprise a nozzle 561 which is communicated with the spray pipe 2 and can be rotationally adjusted relative to the spray pipe 2;
the jet pipe 2 is provided with a hit block 9 and a rocker arm shaft 10, the rocker arm 3 comprises a first arm rod 31 and a second arm rod 32 which are connected in an adjustable mode, the rocker arm 3 is provided with a hit block 8 which is in limit fit with the hit block 9, the first arm rod 31 is provided with a bias flow plate 33 and a guide flow plate 34 which are arranged corresponding to the main nozzle assembly 6, the rocker arm spring 4 is sleeved outside the rocker arm shaft 10, the second arm rod 32 is sleeved outside the rocker arm spring 4, and two ends of the rocker arm spring 4 are respectively connected with the rocker arm shaft 10 and the rocker arm 3.
In the rocker arm type spray head, preferably, a hollow shaft sleeve 11 detachably connected with the spray pipe 2 through threaded fit is arranged in the hollow shaft 1, a antifriction sealing ring 12 and a V-shaped sealing ring 13 are arranged between the hollow shaft sleeve 11 and the hollow shaft 1, and a sand prevention spring 14 positioned between the spray pipe 2 and the hollow shaft 1 is arranged outside the hollow shaft sleeve 11; the antifriction sealing ring 12 and the V-shaped sealing ring 13 are arranged on the hollow shaft sleeve 11 in a preset manner through grooves matched with the antifriction sealing ring 12 and the V-shaped sealing ring 13, and the supporting force of the sand prevention spring 14 on the spray pipe 2 is larger than the gravity of the spray pipe 2.
In the above-mentioned rocker arm spray head, preferably, the nozzle 2 is provided with the stabilizer 15 disposed near the main nozzle assembly 6, the length of the stabilizer 15 is 2.5-3 times of the diameter of the outlet of the nozzle 561 of the main nozzle assembly 6, the thickness of the stabilizer 15 is 1-1.4 times of the diameter of the outlet of the nozzle 561 of the main nozzle assembly 6, the number of blades of the stabilizer 15 is 4, the blades are uniformly distributed inside the nozzle 2, the distance between the outlet position of the stabilizer 15 and the outlet position of the nozzle 2 is 5-6 times of the diameter of the outlet of the nozzle 561 of the main nozzle assembly 6, the stabilizer 15 can be in an integral structure with the main nozzle assembly 6 through casting, and the stabilizer 15 is optimally disposed, so that the outflow of the main nozzle assembly 6 is stable, and the outflow effect is good.
In the above-mentioned rocker arm spray head, preferably, the vertical distance between the main nozzle 561 and the auxiliary nozzle 561 is 0.7-1.0 times the length of the spray pipe 2, and the outlet area of the nozzle 561 of the auxiliary nozzle assembly 5 is 0.3-0.4 times the outlet area of the nozzle 561 of the main nozzle assembly 6, so that the positions and sizes of the main nozzle assembly 6 and the auxiliary nozzle assembly 5 are designed reasonably.
In the above-mentioned rocker arm spray head, preferably, the main nozzle assembly 6 and the auxiliary nozzle assembly 5 each further include a fixing member 562 and a sealing member 563 which are communicated with the spray tube 2, the fixing member 562 is detachably connected with the spray tube 2 and the sealing member 563, preferably, the fixing member 562 is detachably connected with the spray tube 2 through a threaded fit, the fixing member 562 is detachably connected with the sealing member 563 through a threaded fit, and an internal thread and an external thread in the threaded fit are alternatively arranged on the fixing member 562, the sealing member 563 and the spray tube 2 to be cooperatively connected;
the inside of the sealing piece 563 is provided with a rubber seal 564, the outer wall of one end of the nozzle 561 is in a spherical structure, and is positioned in the rubber seal 564 and can rotate relative to the rubber seal 564, and the other end of the nozzle 561 extends to the outside of the sealing piece 563; the rubber seal 564 is in interference fit with the inner wall of the outer wall seal 563, a first boss 565 and a second boss 566 are arranged on the rubber seal 564, the first boss 565 is in limit fit with the fixing part 562 and the seal 563, and the second boss 566 is in interference fit with the spherical surface of the nozzle 561; preferably, the rubber seal 564 has an outer diameter greater than 1-2mm of the inner diameter of the seal 563 and the second boss 566 has an inner diameter greater than 2-4mm of the spherical surface of the nozzle 561; the end of the rubber seal 564 is provided with a limiting ring 567, the limiting ring 567 is in limiting fit with the sealing member 563, the inner wall of the limiting ring 567 is matched with the spherical surface of the nozzle 561, and preferably, the curved surface of the inner wall of the limiting ring 567 is consistent with the spherical surface of the nozzle 561.
According to the rocker arm type spray head, preferably, the first arm rod 31 and the second arm rod 32 are provided with the corresponding connecting holes 35, the striking block 8 is provided with the third boss 81 limited by the first arm rod 31 or the second arm rod 32, the third boss 81 is provided with the bolt 82 penetrating through the connecting holes 35, the bolt 82 penetrates through the connecting holes 35 and is locked by nuts, the connection of the first arm rod 31 and the second arm rod 32 is achieved, the rotation adjustment is achieved by deflecting the first arm rod 31 relative to the second arm rod 32 around the bolt 82, and the relative displacement of the first arm rod 31 and the second arm rod 32 after the adjustment is prevented by the nut locking force.
In the above-mentioned rocker arm type spray head, preferably, the hollow shaft 1 is provided with the limiting member 16, the second arm lever 32 is provided with the reversing block 36, the spray pipe 2 is provided with the reverser 7, the reverser 7 is used for being matched with the limiting member 16 and the reversing block 36, and driving the spray pipe 2 to move around the hollow shaft 1 in a reversing manner, the limiting member 16 comprises two limiting arms 161, the reverser 7 comprises a reversing seat 71, a swinging block 72 and a folding deflector 73, the reversing seat 71 is connected with the spray head, the swinging block 72 is provided with a first screw 74 penetrating through the swinging block 72 and connected with the reversing seat 71, the swinging block 72 can be in limiting fit with the reversing block 36, a swinging block spring 75 is arranged between one end of the folding deflector 73 and the swinging block 72, the side wall of the other end of the folding deflector 73 can be in limiting fit with the two limiting arms 161, and the folding deflector 73 is provided with a second screw 76 penetrating through the folding deflector 73 and connected with the reversing seat 71;
preferably, the folding deflector rod 73 comprises a first deflector rod 731 and a second deflector rod 732, wherein the first deflector rod 731 is connected with the reversing seat 71 through a second screw 76, one end of the first deflector rod 731 is connected with the swinging block 72 through a plate spring, the other end of the first deflector rod 731 passes through the second deflector rod 732 through a hexagonal bolt 733 and is locked by a nut, a yielding notch for setting the first deflector rod 731 is formed in the second deflector rod 732, and the second deflector rod 732 deflects around the hexagonal bolt 733 relative to the first deflector rod 731 to realize folding and unfolding, and is locked by the nut after adjustment.
The assembly process and working principle of example 1 are:
when the hollow shaft 1 is rotationally connected with the spray pipe 2, the antifriction sealing ring 12 and the V-shaped sealing ring 13 are preset on the hollow shaft sleeve 11, the hollow shaft sleeve 11 is arranged outside the hollow shaft sleeve 11 and limited by the antifriction sealing ring 12, the sand-proof spring 14 is sleeved outside the hollow shaft sleeve 11 and at the top of the hollow shaft 1, the top of the hollow shaft sleeve 11 is connected with the bottom of the spray pipe 2 through threaded fit, the sand-proof spring 14 is preloaded, the hollow shaft 1 is rotationally connected with the spray pipe 2, the assembly is realized, and the antifriction sealing ring 12 and the V-shaped sealing ring 13 between the hollow shaft sleeve 11 and the hollow shaft 1 are reliably sealed in a limiting manner and are prevented from being influenced by sand through elastic restoring force of the sand-proof spring 14.
When the main nozzle assembly 6 and the auxiliary nozzle assembly 5 are assembled, the limiting ring 567 is installed inside the sealing piece 563 and in limiting fit with the sealing piece 563, the rubber seal 564 is installed inside the sealing piece 563 through elastic deformation and interference fit and in limiting fit with the limiting ring 567, and the first boss 565 of the rubber seal 564 is in limiting fit with the end part of the sealing piece 563; the nozzle 561 is installed in the rubber seal 564 through elastic deformation and interference fit of the rubber seal 564, the end part of the nozzle 561 penetrates through the limiting ring 567 to extend to the outside of the sealing piece 563, the spherical surface of the nozzle 561 can rotate relative to the rubber seal 564, the inner wall of the limiting ring 567 is matched with the spherical surface of the nozzle 561, the sealing reliability after the rotation adjustment of the nozzle 561 is ensured under the interference fit of the second boss 566 and the spherical surface of the nozzle 561, and the water leakage phenomenon during the rotation adjustment of the nozzle 561 is prevented;
the sealing piece 563 is detachably connected with the sealing piece 563 through threaded fit with the fixing piece 562, the first boss 565 is located between the sealing piece 563 and the fixing piece 562 to ensure connection sealing reliability, the fixing piece 562 is detachably connected with the spray pipe 2 through threaded fit, preferably, sealing can be additionally arranged between the spray pipe 2 and the fixing piece 562 to ensure connection sealing reliability, detachable assembly of the main nozzle assembly 6 and the auxiliary nozzle assembly 5 is realized, the inner wall of the rubber seal 564 can be matched with the outer wall of the spray pipe 2 to improve sealing performance, the spray nozzle 561 is communicated with the spray pipe 2 and can be rotatably adjusted relative to the spray pipe 2, and the spray nozzle 561 with suitable caliber can be detached and replaced according to sprinkling irrigation requirements.
Referring to fig. 3, when the spray head performs full circle spraying, the folding deflector rod 73 is retracted and separated from the cooperation with the limiting piece 16, and as shown in the state of the reverser 7 i in fig. 5, the folding deflector rod 73 is shifted around the second screw 76, and the folding deflector rod 73 pulls the swinging block 72 to deflect around the first screw 74 through the tension of the swinging block spring 75, so that the swinging block 72 is retracted relative to the reversing seat 71 and separated from the limiting cooperation with the reversing block 36; when water is introduced into the spray pipe 2 through the hollow shaft 1 and the water flows are sprayed out along the jet flows of the nozzles 561 of the main nozzle assembly 6 and the auxiliary nozzle assembly 5, the jet flows of the nozzles 561 of the main nozzle assembly 6 are towards the deflector 33, the deflector 33 enables the jet flows to deviate from the axis and towards the deflector 34, under the action of the water jet, the rocker arm 3 starts to swing outwards, and at the moment, the rocker arm spring 4 is gradually twisted, so that an opposite torsion moment is given to the rocker arm 3, but the action moment of the jet flow to the deflector 34 is much larger than the torsion moment of the rocker arm spring 4, and the rocker arm 3 can be separated from the jet flow; after the jet flow is separated, the rocker arm 3 has no energy source, but the rocker arm 3 continuously swings outwards in a decelerating motion mode under the action of inertia force, at the moment of torsion of the rocker arm spring 4 gradually increases along with the outward swing of the rocker arm 3, the rocker arm 3 gradually decelerates until the speed of the rocker arm 3 is 0, and the rocker arm 3 starts to reversely run due to the action of the rocker arm spring 4 so as to cut into the jet flow;
after the rocker arm 3 enters the jet flow, the jet pipe 2 is driven to rotate around the hollow shaft 1 through the impact force action of the striking block 8 and the struck block 9, and after the jet pipe 2 runs, the energy of the rocker arm 3 is exhausted and can stay in the jet flow of the nozzle 561 of the main nozzle assembly 6, the jet flow acts on the deflector 33 and the deflector 34, and the process is repeated, so that full-circle spraying is realized.
Referring to fig. 5-6, when the spray head performs fan-shaped spraying, the second deflector 732 of the folding deflector 73 is placed between the two limiting arms 161 of the limiting piece 16, and as shown in the state of the reverser 7 i of fig. 5, the folding deflector 73 is stirred around the second screw 76, the folding deflector 73 pulls the swinging block 72 to deflect around the first screw 74 through the pulling force of the swinging block spring 75, and the folding deflector 73 is limited by one side limiting arm 161, so that the swinging block 72 is retracted relative to the reversing seat 71 and is separated from limiting cooperation with the reversing block 36; similarly, when water is sprayed, the spray pipe 2 moves around the hollow shaft 1 under the action of the rocker arm 3, but when the spray pipe moves to a state of the reverser 7 II as shown in fig. 6, the folding deflector 73 is toggled and deflected around the second screw 76 under the action of the limiting arm 161 at the other side of the limiting piece 16, the pendulum block 72 is pushed to reversely deflect around the first screw 74 by the pendulum block spring 75, so that the pendulum block 72 automatically pops up relative to the reversing seat 71, and the pendulum block 72 and the reversing block 36 can be in limit fit and mutually hit, so that the spray pipe 2 reversely rotates around the hollow shaft 1;
similarly, when the spray pipe 2 reversely rotates to a certain angle, the folding deflector 73 is limited by the position limiting arm 161 to stir to return to the state of the commutator 7I, the swinging block 72 is automatically retracted relative to the reversing seat 71 and is separated from limiting cooperation with the reversing block 36, the spray pipe 2 moves forwards around the hollow shaft 1 under the action of the rocker arm 3 until the state of the commutator 7 II and the state of the commutator 7I are repeatedly switched automatically, and the commutator 7 is used for cooperating with the limiting piece 16 and the reversing block 36 to drive the spray pipe 2 to move around the hollow shaft 1 in a reversing way, so that fan-shaped spray of a spray nozzle is realized.
Example 2:
a spray irrigation method adopts a rocker arm type spray head for spray irrigation, the elevation angle theta 1 of the spray nozzle 561 of the main spray nozzle assembly 6 is adjusted to be 20-35 degrees according to wind power and working pressure, the corresponding adjustment flow deflector 33 and the corresponding adjustment flow deflector 34 of the spray nozzle 561 of the auxiliary spray nozzle assembly 5 correspond to the main spray nozzle assembly 6.
A method of sprinkling irrigation as described above, preferably, specifically:
when the rocker arm type spray head is in the wind power of less than or equal to 2 levels and the rated working pressure is-70% of the rated working pressure, the elevation angle theta 1 of the spray nozzle 561 of the main spray nozzle assembly 6 is adjusted to be 30-35 degrees, the elevation angle theta 1 is determined according to the maximum range, the spray irrigation strength is reduced, meanwhile, in order to enable the rocker arm 3 to generate driving force, the first arm rod 31 is adjusted relative to the second arm rod 32, the deflector 33 and the deflector 34 are enabled to correspond to the spray nozzle 561 of the main spray nozzle assembly 6 to jet, and the water quantity is supplemented by adjusting the elevation angle of the spray nozzle 561 of the auxiliary spray nozzle assembly 5, so that the effect of improving the water quantity distribution uniformity is achieved;
when the rocker arm type spray head is under the rated working pressure of 2-4 stages of wind power and 70% of rated working pressure, the elevation angle theta 1 of the spray nozzle 561 of the main spray nozzle assembly 6 is adjusted to be 20-25 degrees, meanwhile, in order to enable the rocker arm 3 to generate driving force, the first arm rod 31 is adjusted relative to the second arm rod 32, the deflector 33 and the deflector 34 are enabled to correspond to the spray nozzle 561 of the main spray nozzle assembly 6 to jet, and water quantity is supplemented by adjusting the elevation angle of the spray nozzle 561 of the auxiliary spray nozzle assembly 5, so that the effect of improving the water quantity distribution uniformity is achieved, and the wind resistance effect is achieved;
when the rocker arm type spray head is under the rated working pressure less than 70%, the elevation angle theta 1 of the spray nozzle 561 of the main nozzle assembly 6 is determined according to the maximum range, the spray irrigation intensity is reduced, the corresponding main nozzle assembly 6 is correspondingly adjusted by the deflector 33 and the deflector 34, the spray nozzle 561 of the auxiliary nozzle assembly 5 is adjusted to enable the auxiliary nozzle assembly 5 to intersect with the spray flow of the main nozzle assembly 6, the effect of improving the uniform distribution of the water quantity of the spray head is achieved through the water beam collision, the spray head atomization performance under the low working pressure is improved, meanwhile, in order to reduce the loss of the spray head range in the collision process as much as possible, and in the collision process, the tangential included angle theta 2 at the junction of the spray flow of the main nozzle assembly 6 and the auxiliary nozzle assembly 5 is less than or equal to 45 DEG in the see the figure 3.
The rocker-arm type spray head for full-circle spraying or fan-shaped spraying has the advantages that the main nozzle assembly 6 and the auxiliary nozzle assembly 5 can rotate and adjust the nozzle 561 relative to the spray pipe 2, adjust main jet flow and auxiliary jet flow, and correspondingly adjust the deflector 33 and the deflector 34 to correspond to the main nozzle assembly 6 so as to ensure the spraying driving, so that the rocker-arm type spray head has the following advantages:
(1) By adjusting the elevation angle of the nozzles 561 of the main nozzle assembly 6, a maximum range can be achieved, decreasing spray intensity, increasing spray pipe spacing, and reducing pipe investment in a pipe-type spray irrigation system.
(2) By adjusting the elevation angle of the nozzle 561 of the auxiliary nozzle assembly 5, the radial water quantity of the main nozzle assembly 6 can be flexibly supplemented, and the effect of improving the spray irrigation uniformity is achieved.
(3) By adjusting the elevation angle of the nozzles 561 of the main nozzle assembly 6 and the sub nozzle assembly 5, the wind resistance is achieved when the wind speed is high.
(4) By adjusting the elevation angles of the nozzles 561 of the main nozzle assembly 6 and the auxiliary nozzle assembly 5, the auxiliary nozzle assembly 5 and the jet flow of the main nozzle assembly 6 are intersected and impacted at the rated working pressure of less than 70 percent, and the atomization performance of the spray head under the low working pressure is improved.
(5) The jet flow of the auxiliary nozzle assembly 5 and the jet flow of the main nozzle assembly 6 intersect and collide, the effect is equivalent to that of the existing water dispersing device, the water dispersing device can be omitted by adopting the structure, and the design cost and the manufacturing cost of the spray head are reduced.
In summary, the rocker arm spray head and the spray irrigation method meet the requirements of good wind resistance under normal working pressure, namely rated working pressure-70% of rated working pressure, and can ensure good atomization level under low pressure, namely less than 70% of rated working pressure.
It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. The rocker arm type spray head is characterized by comprising a hollow shaft (1), a spray pipe (2), a rocker arm (3) and a rocker arm spring (4), wherein the bottom of the spray pipe (2) is rotationally connected with the hollow shaft (1), an auxiliary nozzle assembly (5) is arranged at the side bottom of the spray pipe (2), a main nozzle assembly (6) which is arranged at the same side as the auxiliary nozzle assembly (5) is arranged at the top end part of the spray pipe (2), and the main nozzle assembly (6) and the auxiliary nozzle assembly (5) both comprise a nozzle (561) which is communicated with the spray pipe (2) and can be rotationally adjusted relative to the spray pipe (2);
the jet pipe (2) is provided with a hit block (9) and a rocker arm shaft (10), the rocker arm (3) comprises a first arm rod (31) and a second arm rod (32) which are connected in an adjustable mode, the rocker arm (3) is provided with a hit block (8) which is in limit fit with the hit block (9), the first arm rod (31) is provided with a deflector (33) and a deflector (34) which are arranged corresponding to the main nozzle assembly (6), the deflector (33) and the deflector (34) are correspondingly adjusted to correspond to the main nozzle assembly (6) to ensure spraying driving, the rocker arm spring (4) is sleeved outside the rocker arm shaft (10), the second arm rod (32) is sleeved outside the rocker arm spring (4), and two ends of the rocker arm spring (4) are respectively connected with the rocker arm shaft (10) and the rocker arm (3);
the hollow shaft (1) is provided with a limiting piece (16), the second arm rod (32) is provided with a reversing block (36), the spray pipe (2) is provided with a reverser (7), and the reverser (7) is used for being matched with the limiting piece (16) and the reversing block (36) and driving the spray pipe (2) to move around the hollow shaft (1) in a reversing way;
the limiting piece (16) comprises two limiting arms (161), the commutator (7) comprises a reversing seat (71), a swinging block (72) and a folding deflector rod (73), the reversing seat (71) is connected with a spray head, a first screw (74) penetrating through the swinging block (72) and connected with the reversing seat (71) is arranged on the swinging block (72), the swinging block (72) can be in limiting fit with the reversing block (36), a swinging block spring (75) is arranged between one end of the folding deflector rod (73) and the swinging block (72), the side wall of the other end of the folding deflector rod (73) can be in limiting fit with the two limiting arms (161), and a second screw (76) penetrating through the folding deflector rod (73) and connected with the reversing seat (71) is arranged on the folding deflector rod (73).
2. The rocker arm type spray head according to claim 1, wherein a hollow shaft sleeve (11) connected with the spray pipe (2) is arranged in the hollow shaft (1), an antifriction sealing ring (12) and a V-shaped sealing ring (13) are arranged between the hollow shaft sleeve (11) and the hollow shaft (1), a sand prevention spring (14) positioned between the spray pipe (2) and the hollow shaft (1) is arranged outside the hollow shaft sleeve (11), and a current stabilizer (15) arranged close to the main nozzle assembly (6) is arranged in the spray pipe (2).
3. The rocker arm type spray head according to claim 1, wherein the main nozzle assembly (6) and the auxiliary nozzle assembly (5) further comprise a fixing piece (562) and a sealing piece (563) which are communicated with the spray pipe (2), the fixing piece (562) is detachably connected with the spray pipe (2) and the sealing piece (563), a rubber seal (564) is arranged in the sealing piece (563), one end outer wall of the spray nozzle (561) is in a spherical structure, and is located in the rubber seal (564) and can rotate relative to the rubber seal (564), and the other end of the spray nozzle (561) extends to the outside of the sealing piece (563).
4. A rocker arm spray head according to claim 3, characterized in that the outer wall of the rubber seal (564) is in interference fit with the inner wall of the sealing member (563), a first boss (565) and a second boss (566) are arranged on the rubber seal (564), the first boss (565) is in limit fit with the fixing member (562) and the sealing member (563), and the second boss (566) is in interference fit with the spherical surface of the nozzle (561).
5. A rocker arm spray head according to claim 3, characterized in that a limiting ring (567) is arranged at the end part of the rubber seal (564), the limiting ring (567) is in limiting fit with the seal (563), and the inner wall of the limiting ring (567) is in spherical surface fit with the nozzle (561).
6. The rocker arm type spray head according to claim 1, wherein corresponding connecting holes (35) are formed in the first arm lever (31) and the second arm lever (32), a third boss (81) limiting to the first arm lever (31) or the second arm lever (32) is formed in the striking block (8), and a bolt (82) penetrating through the connecting holes (35) is formed in the third boss (81).
7. A spray irrigation method, characterized in that the rocker arm type spray head according to any one of claims 1-6 is adopted for spray irrigation, the elevation angle theta 1 of the nozzle (561) of the main nozzle assembly (6) is adjusted to be 20-35 degrees according to wind power and working pressure, the corresponding deflector (33) and deflector (34) are adjusted to correspond to the main nozzle assembly (6), and the elevation angle of the nozzle (561) of the auxiliary nozzle assembly (5) is adjusted.
8. The method of claim 7, characterized in that in particular:
when the rocker arm type spray head is in the wind power of less than or equal to 2 stages and the rated working pressure is-70% of the rated working pressure, the elevation angle theta 1 of the nozzle (561) of the main nozzle assembly (6) is 30-35 degrees; when the rocker arm type spray head is under the rated working pressure of 2-4 stages of wind power and 70 percent of rated working pressure, the elevation angle theta 1 of the spray nozzle (561) of the main spray nozzle assembly (6) is 20-25 degrees; when the rocker arm type spray head is under the rated working pressure less than 70%, the elevation angle of the nozzle (561) of the auxiliary nozzle assembly (5) is adjusted to enable the auxiliary nozzle assembly (5) to be intersected with the jet flow of the main nozzle assembly (6), and the tangential included angle theta 2 at the jet flow intersection position of the main nozzle assembly (6) and the auxiliary nozzle assembly (5) is less than or equal to 45 degrees.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111470807.8A CN114289204B (en) | 2021-12-03 | 2021-12-03 | Rocker arm type spray head and spray irrigation method |
| PCT/CN2022/075856 WO2023097888A1 (en) | 2021-12-03 | 2022-02-10 | Impact sprinkler and sprinkling irrigation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111470807.8A CN114289204B (en) | 2021-12-03 | 2021-12-03 | Rocker arm type spray head and spray irrigation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114289204A CN114289204A (en) | 2022-04-08 |
| CN114289204B true CN114289204B (en) | 2023-05-05 |
Family
ID=80965351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111470807.8A Active CN114289204B (en) | 2021-12-03 | 2021-12-03 | Rocker arm type spray head and spray irrigation method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114289204B (en) |
| WO (1) | WO2023097888A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114766328B (en) * | 2022-05-18 | 2023-08-22 | 江苏大学 | Rotary impact type sprinkling irrigation device and method |
| CN117266912B (en) * | 2023-08-10 | 2024-05-14 | 陕西北纳技术有限公司 | Quantum magnetizing, spraying and dedusting system for coal mining |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055304A (en) * | 1976-06-24 | 1977-10-25 | Rain Bird Sprinkler Mfg. Corporation | Auxiliary braking means for impact arm sprinklers |
| CN2383588Y (en) * | 1999-07-25 | 2000-06-21 | 郑州喷泉喷灌工程有限公司 | Rocker arm type reversing spray head |
| CN2436234Y (en) * | 2000-06-15 | 2001-06-27 | 郑州喷泉喷灌工程有限公司 | Double-tube rocker arm type reversing nozzle |
| CN102294309B (en) * | 2011-08-16 | 2013-08-14 | 西北农林科技大学 | Method for preparing elevation-adjustable rocker arm type irrigating spray head of flexible elbow pipe |
| CN204523362U (en) * | 2015-03-12 | 2015-08-05 | 邯郸市成通灌溉节能设备有限公司 | A kind of controlled angle shower nozzle |
| CN205462831U (en) * | 2016-01-19 | 2016-08-17 | 石鸿娟 | Single mouth area reversing mechanism's impact driven sprinkler |
| CN108260502A (en) * | 2016-12-31 | 2018-07-10 | 沃达尔（天津）股份有限公司 | A kind of sprinkler with reel with rocker-arm single injector nozzle |
| US11090671B2 (en) * | 2019-07-22 | 2021-08-17 | Nelson Irrigation Corporation | Automatic reversible arc sprinkler |
| CN210298863U (en) * | 2019-08-06 | 2020-04-14 | 四川省南部新龙源管业有限公司 | Adjustable water-saving irrigation equipment |
| CN112221753B (en) * | 2020-05-29 | 2022-01-11 | 江苏大学 | Adjustable sprinkling irrigation device for jet space collision of main and auxiliary nozzles |
-
2021
- 2021-12-03 CN CN202111470807.8A patent/CN114289204B/en active Active
-
2022
- 2022-02-10 WO PCT/CN2022/075856 patent/WO2023097888A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN114289204A (en) | 2022-04-08 |
| WO2023097888A1 (en) | 2023-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114289204B (en) | Rocker arm type spray head and spray irrigation method | |
| CA1210796A (en) | Vane-driven wobbling sprinkler device | |
| AU2018213961B2 (en) | Rigid mount orbitor sprinkler | |
| AU2007250520B2 (en) | Sprinkler head | |
| CN208643008U (en) | A kind of Irrigation shower head for capableing of large area sprinkling | |
| CN201940302U (en) | Rotary type micro-sprayer | |
| CN210386247U (en) | Self-rotating spray head for irrigation of green lawn | |
| CN111280025B (en) | Agricultural irrigation device capable of swinging according to wind direction | |
| CN216753048U (en) | Plant irrigation device | |
| CN209565118U (en) | A kind of enhanced gas-liquid two-phase flow static nozzle | |
| KR20190138255A (en) | Sprinkler | |
| WO2023173526A1 (en) | Sprinkler irrigation machine for seedling raising and maintenance | |
| US6016972A (en) | Bridgeless rotary sprinkler | |
| KR102276493B1 (en) | Sprinkler | |
| CN108834839A (en) | A kind of irrigation rig for gardens | |
| CN210815798U (en) | Gardens sprinkling irrigation shower nozzle | |
| CN112221753B (en) | Adjustable sprinkling irrigation device for jet space collision of main and auxiliary nozzles | |
| CN112293212A (en) | Sprinkler for agricultural irrigation | |
| RU2316946C2 (en) | Sprinkler head | |
| KR102052826B1 (en) | Sprinkler | |
| CN212243834U (en) | Adjustable sprinkler of plant protection unmanned aerial vehicle | |
| CN113477427A (en) | Non-full-circle spraying tail end low-pressure nozzle suitable for light and small translational sprinkler | |
| CN108787199A (en) | Comprehensive automatic rotary depositing dust spray system | |
| CN218789579U (en) | Irrigate spray gun with adjustable | |
| CN2649185Y (en) | Low elevation angle spray head with adjustable atomization degree |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |