Rotary sprayer of underground switch

Abstract

The utility model provides an underground switch rotating nozzle, which comprises a connecting sleeve, a rotating head and a rotating cleaning piece, and is characterized in that the connecting sleeve is used for being connected with a telescopic pipe; the rotating head is arranged above the connecting sleeve, the rotating head and the connecting sleeve are coaxially arranged, the rotating head is provided with a cavity communicating with the connecting sleeve, and water spraying holes communicating with the cavity are formed in the peripheral wall of the rotating head in a penetrating mode; the rotary cleaning piece is rotationally connected into the cavity and is coaxial with the rotary head, and the rotary cleaning piece can rotate under the action of water flow to rub impurities blocking the inlet end of the water spraying hole. The rotary sprayer of the underground switch not only can prevent the water spraying holes from being blocked, but also can uniformly irrigate crops.

Description

Technical Field

[0001] This utility model belongs to the field of nozzle technology, and more specifically, it relates to an underground switch rotary nozzle. Background Technology

[0002] Most existing crop irrigation sprinklers are underground, connected to telescopic pipes. During use, irrigation water enters the telescopic pipe and then the sprinkler head. Under water pressure, the telescopic pipe lifts the sprinkler head above ground. At this point, the water pressure inside the telescopic pipe is high, making it extremely difficult to repair if the sprinkler head becomes clogged. Because irrigation requires a long spray distance, the nozzle orifice diameter is relatively small. Due to the many impurities in the irrigation water, nozzle clogging frequently occurs. Furthermore, because the nozzle orifice diameter is fixed, under a constant water pressure, there is often more water at a distance and less water in the middle and near areas, resulting in uneven irrigation of crops. Utility Model Content

[0003] This utility model provides an underground switch rotary sprinkler head that not only avoids clogging of the spray holes but also provides uniform irrigation for crops.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a buried switch rotary nozzle is provided, including a connecting sleeve, a rotating head, and a rotating cleaning component. The connecting sleeve is used to connect with a telescopic pipe. The rotating head is disposed above the connecting sleeve and is coaxially arranged with the connecting sleeve. The rotating head has a cavity communicating with the connecting sleeve, and a water spray hole communicating with the cavity is provided through the outer peripheral wall of the rotating head. The rotating cleaning component is rotatably connected to the cavity and is coaxially arranged with the rotating head. The rotating cleaning component can rotate and scrape the impurities blocked at the inlet end of the water spray hole under the action of water flow.

[0005] In one possible implementation, the rotating cleaning component includes a shaft, a mounting sleeve, a fan blade, and a scraper. The shaft is rotatably connected to the cavity; the mounting sleeve is fixedly fitted onto the outer periphery of the shaft; the fan blade is connected to the outer peripheral wall of the mounting sleeve and forms an acute angle with the inner bottom wall of the cavity; the scraper is connected to the outer peripheral wall of the mounting sleeve and extends axially along the shaft, the scraper is located above the fan blade, and the outer edge of the scraper can scrape impurities blocked at the inlet end of the spray hole.

[0006] In one possible implementation, a transition sleeve is provided between the connecting sleeve and the rotating head, and the transition sleeve is threadedly connected to the connecting sleeve. A gearbox is provided inside the transition sleeve, and there is a clearance between the gearbox and the transition sleeve. An input shaft is provided below the gearbox and an output shaft is provided above it. The output shaft is connected to the rotating head and is used to drive the rotating head to rotate. A fan wheel is connected to the input shaft, and the fan wheel can rotate under the action of water flow.

[0007] In some embodiments, the output shaft is provided with a rotating sleeve extending upward to the top of the transition sleeve. The rotating sleeve is threadedly connected to the rotating head and communicates with both the rotating head and the transition sleeve.

[0008] In some embodiments, a cross plate is provided inside the rotating sleeve, and a snap-fit ​​connector is connected to the output shaft. A cross groove is provided on the upper end face of the snap-fit ​​connector, and the cross groove is provided through the outer peripheral wall of the snap-fit ​​connector. The cross groove is used to accommodate the cross plate.

[0009] In some embodiments, a wear-resistant pad is provided between the transition sleeve and the rotating head.

[0010] In some embodiments, the upper end of the transition sleeve is provided with a gathering platform that converges toward the central axis, and the lower end of the rotating sleeve is provided with a limiting platform that protrudes outward and is located below the gathering platform. A rotating sealing ring is provided between the limiting platform and the gathering platform.

[0011] In one possible implementation, a ball valve is rotatably connected inside the connecting sleeve. A water passage hole is radially provided on the ball valve. An opening and closing shaft that radially passes through the connecting sleeve is connected to the outer peripheral wall of the ball valve. The opening and closing shaft is rotatably connected to the connecting sleeve. A slot is provided on the outer end face of the opening and closing shaft.

[0012] In some embodiments, a sealing ring is fitted around the outer periphery of the opening and closing shaft.

[0013] In some embodiments, gaskets are provided above and below the ball valve.

[0014] Compared with the prior art, the underground switch rotary sprinkler provided in this embodiment uses water flow to drive the rotating cleaning component to rotate, which scrapes away impurities blocking the inlet of the water nozzle, thus preventing the nozzle from becoming clogged. Furthermore, during the rotation and cleaning process, the rotating cleaning component continuously blocks the inlet of the water nozzle, changing the nozzle diameter and causing the water sprayed from the nozzle to vary in distance and volume, thereby ensuring uniform irrigation of crops. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the underground switch rotary nozzle provided in an embodiment of the present utility model;

[0017] Figure 2 A front sectional view of the underground switch rotary nozzle provided in an embodiment of this utility model;

[0018] Figure 3 A schematic diagram of the disassembly structure of the underground switch rotary nozzle provided in this embodiment of the utility model;

[0019] Figure 4 This is an embodiment of the present utility model. Figure 3 Another structural diagram from a different perspective;

[0020] Figure 5 This is an embodiment of the present utility model. Figure 3 Structural diagram of the intermediate transition sleeve, rotating sleeve, and gearbox;

[0021] Figure 6 This is an embodiment of the present utility model. Figure 5 Another structural diagram from a different perspective;

[0022] Figure 7 This is an embodiment of the present utility model. Figure 5 A structural diagram showing the disassembled structure;

[0023] Figure 8 This is an embodiment of the present utility model. Figure 7 A structural diagram from another perspective.

[0024] The following are the labeling elements in the figure:

[0025] 10. Connecting sleeve; 20. Rotating head; 21. Cavity; 22. Water spray hole; 30. Rotating cleaning component; 31. Rotating shaft; 32. Mounting sleeve; 33. Fan blade; 34. Friction plate; 40. Transition sleeve; 41. Through gap; 42. Wear-resistant pad; 43. Gathering platform; 44. Abutment strip; 50. Gearbox; 51. Input shaft; 52. Output shaft; 53. Fan wheel; 54. Snap connector; 55. Cross groove; 56. Limiting strip; 60. Rotating sleeve; 61. Cross plate; 62. Limiting platform; 63. Rotating sealing ring; 70. Ball valve; 71. Water passage hole; 72. Opening and closing shaft; 73. Slotted groove; 74. Sealing ring; 75. Sealing gasket; 80. Flow guide pad; 81. Spiral through hole. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.

[0028] Please see Figures 1 to 8 The present invention provides a description of the underground switch rotary sprinkler head. The underground switch rotary sprinkler head includes a connecting sleeve 10, a rotating head 20, and a rotating cleaning component 30. The connecting sleeve 10 is used to connect to a telescopic pipe. The rotating head 20 is disposed above the connecting sleeve 10 and coaxially with it. The rotating head 20 has a cavity 21 communicating with the connecting sleeve 10, and a water spray hole 22 communicating with the cavity 21 is provided through the outer peripheral wall of the rotating head 20. The rotating cleaning component 30 is rotatably connected to the cavity 21 and coaxially with the rotating head 20. The rotating cleaning component 30 can rotate and scrape impurities blocked at the inlet end of the water spray hole 22 under the action of water flow.

[0029] This application embodiment provides an underground switch rotary sprinkler head. In actual use, the water supply source supplies irrigation water into the telescopic pipe, causing the telescopic pipe to extend, so that the rotary head 20 extends out of the ground. The irrigation water passes through the connecting sleeve 10 and the rotary head 20, and is sprayed out from the spray hole 22. The water flow drives the rotating cleaning component 30 to rotate, causing it to scrape the impurities blocked at the inlet end of the spray hole 22. In the process of rotating and clearing blockage, the rotating cleaning component 30 continuously blocks the inlet end of the spray hole 22, changing the size of the spray hole 22, so that the water sprayed from the spray hole 22 is sometimes far and sometimes near, sometimes large and sometimes small, thereby making the crops receive uniform irrigation.

[0030] Compared with the prior art, the underground switch rotary sprinkler provided in this embodiment uses water flow to drive the rotating cleaning component 30 to rotate, which scrapes away the impurities blocking the inlet end of the spray hole 22, thus preventing the spray hole 22 from becoming blocked. In the process of rotating and clearing blockage, the rotating cleaning component 30 continuously blocks the inlet end of the spray hole 22, changing the size of the spray hole 22, so that the water sprayed from the spray hole 22 varies in distance and size, thereby ensuring that crops are irrigated evenly.

[0031] In one possible implementation, the aforementioned rotating cleaning component 30 adopts, as shown in... Figures 1 to 4 The structure shown is described in the following document. Figures 1 to 4 The rotating cleaning component 30 includes a rotating shaft 31, a mounting sleeve 32, a fan blade 33, and a scraper 34. The rotating shaft 31 is rotatably connected to the cavity 21. The mounting sleeve 32 is fixedly sleeved on the outer periphery of the rotating shaft 31. The fan blade 33 is connected to the outer peripheral wall of the mounting sleeve 32 and forms an acute angle with the inner bottom wall of the cavity 21. The scraper 34 is connected to the outer peripheral wall of the mounting sleeve 32 and extends along the axial direction of the rotating shaft 31. The scraper 34 is located above the fan blade 33, and the outer edge of the scraper 34 can scrape the impurities blocked at the inlet end of the water spray hole 22.

[0032] Specifically, several fan blades 33 are spaced apart around the mounting sleeve 32; several scraper blades 34 are spaced apart around the mounting sleeve 32; when the outer edge of the scraper blade 34 is closest to the water spray hole 22, there is a small gap between them. When water flows through the fan blades 33, it drives the fan blades 33 to rotate, which in turn drives the scraper blades 34 to rotate synchronously. Through the continuous rotation of the scraper blades 34, not only can impurities stuck at the inlet end of the water spray hole 22 be scraped off, but the inlet end of the water spray hole 22 can also be continuously blocked, changing the size of the orifice of the water spray hole 22, so that the water sprayed from the water spray hole 22 varies in distance and size, thereby ensuring uniform irrigation of crops.

[0033] In one possible implementation, the aforementioned connecting sleeve 10 adopts as follows: Figures 1 to 8 The structure shown is described in the following document. Figures 1 to 8 A transition sleeve 40 is provided between the connecting sleeve 10 and the rotating head 20 and is threadedly connected to the connecting sleeve 10. A gearbox 50 is provided inside the transition sleeve 40. There is a passage gap 41 between the gearbox 50 and the transition sleeve 40. An input shaft 51 is provided below the gearbox 50 and an output shaft 52 is provided above it. The output shaft 52 is connected to the rotating head 20 and is used to drive the rotating head 20 to rotate. A fan wheel 53 is connected to the input shaft 51 and can rotate under the action of water flow.

[0034] Specifically, irrigation water is allowed to pass through the gap 41. When the irrigation water rapidly enters the transition sleeve 40, it drives the fan wheel 53 to rotate. The power generated by the high-speed rotating fan wheel 53 is reduced by the gearbox 50 and then output by the output shaft 52, driving the rotating head 20 to rotate at a low speed to avoid the rotating head 20 rotating too fast.

[0035] Furthermore, the outer peripheral wall of the gearbox 50 is provided with limiting strips 56 extending in the vertical direction, and four limiting strips 56 are spaced apart in the circumferential direction of the gearbox 50. The inner peripheral wall of the transition sleeve 40 is provided with abutting strips 44 extending in the vertical direction, and four abutting strips 44 are spaced apart in the inner peripheral wall of the transition sleeve 40. The four limiting strips 56 and the four abutting strips 44 are arranged in a one-to-one correspondence. The side wall of the limiting strip 56 abuts against the side wall of the abutting strip 44 to restrict the rotation of the gearbox 50 relative to the transition sleeve 40.

[0036] Furthermore, a guide pad 80 is embedded in the upper end of the connecting sleeve 10. The upper end face of the guide pad 80 abuts against the lower end face of the transition sleeve 40. A spiral through hole 81 communicating with the connecting sleeve 10 is provided through the guide pad 80. The irrigation water spirals after passing through the guide pad 80, which can better promote the rotation of the fan wheel 53.

[0037] In some embodiments, see Figures 2 to 4 , Figure 6 and Figure 7 The output shaft 52 is provided with a rotating sleeve 60 extending upward to the top of the transition sleeve 40. The rotating sleeve 60 is threadedly connected to the rotating head 20 and is connected to both the rotating head 20 and the transition sleeve 40.

[0038] Specifically, the rotating sleeve 60 and the rotating head 20 are detachable, which facilitates the individual disassembly and replacement of the rotating head 20, improving convenience. Furthermore, the direction in which the rotating sleeve 60 drives the rotating head 20 to rotate can cause the rotating sleeve 60 and the rotating head 20 to tighten together, preventing them from separating from each other.

[0039] It should be noted that a connecting hole communicating with the rotating sleeve 60 is provided through the inner bottom wall of the cavity 21. The connecting hole is fan-shaped, and four are arranged at intervals around the circumference of the rotating head 20. See [reference needed]. Figure 3 and Figure 4 .

[0040] In some embodiments, see Figure 2 and Figures 6 to 8 The rotating sleeve 60 is provided with a cross plate 61, and the output shaft 52 is connected to a snap-fit ​​connector 54. The upper end face of the snap-fit ​​connector 54 is provided with a cross groove 55, which is provided through the outer peripheral wall of the snap-fit ​​connector 54 and is used to accommodate the cross plate 61.

[0041] Specifically, after separating the connecting sleeve 10 from the transition sleeve 40, the gearbox 50 can be pulled directly away from the rotating sleeve 60 to separate the snap-fit ​​connector 54 from the cross plate 61, thus achieving the separate disassembly of the gearbox 50 and the rotating sleeve 60.

[0042] In some embodiments, see Figures 1 to 4 , Figure 6 and Figure 7 A wear-resistant pad 42 is provided between the transition sleeve 40 and the rotating head 20.

[0043] Specifically, the wear-resistant pad 42 can prevent direct contact between the transition sleeve 40 and the rotating head 20, and prevent wear between the transition sleeve 40 and the rotating head 20.

[0044] In some embodiments, see Figure 2 The upper end of the transition sleeve 40 is provided with a gathering platform 43 that converges towards the central axis, and the lower end of the rotating sleeve 60 is provided with a limiting platform 62 that protrudes outward and is located below the gathering platform 43. A rotating sealing ring 63 is provided between the limiting platform 62 and the gathering platform 43.

[0045] Specifically, the mutual limiting between the gathering platform 43 and the limiting platform 62 prevents the rotating sleeve 60 from moving upward and separating from the transition sleeve 40, and the setting of the rotating sealing ring 63 also increases the sealing performance between the transition sleeve 40 and the rotating sleeve 60.

[0046] In one possible implementation, the aforementioned connecting sleeve 10 adopts as follows: Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 A ball valve 70 is rotatably connected inside the connecting sleeve 10. A water passage hole 71 is radially provided on the ball valve 70. An opening and closing shaft 72 is radially connected to the outer peripheral wall of the ball valve 70 and is rotatably connected to the connecting sleeve 10. A slot 73 is provided on the outer end face of the opening and closing shaft 72.

[0047] Specifically, when the nozzle is in normal use, the water passage hole 71 is coaxial with the connecting sleeve 10; when the nozzle needs to be closed, a flathead wrench can be inserted into the flathead slot 73 to rotate the ball valve 70 ninety degrees to close the ball valve 70, which facilitates the inspection and replacement of parts on the nozzle.

[0048] In some embodiments, see Figure 2 A sealing ring 74 is fitted around the outer periphery of the opening and closing shaft 72.

[0049] Specifically, the sealing ring 74 increases the sealing performance between the opening / closing shaft 72 and the connecting sleeve 10, preventing water leakage.

[0050] In some embodiments, see Figure 2The ball valve 70 is provided with sealing gaskets 75 on both the top and bottom.

[0051] Specifically, the sealing gasket 75 increases the sealing performance between the ball valve 70 and the inner peripheral wall of the connecting sleeve 10, allowing irrigation water to pass only through the water passage hole 71.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An underground rotary sprinkler head, characterized in that, include: Connecting sleeve, used for connecting to the telescopic tube; A rotating head is disposed above the connecting sleeve and coaxially with the connecting sleeve. The rotating head has a cavity communicating with the connecting sleeve, and a water spray hole communicating with the cavity is provided through the outer peripheral wall of the rotating head. as well as A rotating cleaning component is rotatably connected within the cavity and coaxially arranged with the rotating head. The rotating cleaning component can rotate and scrape away impurities that are blocked at the inlet end of the water spray hole under the action of water flow.

2. The underground switch rotary nozzle as described in claim 1, characterized in that, The rotating cleaning component includes: A rotating shaft is rotatably connected within the cavity; The mounting sleeve is fixedly fitted onto the outer circumference of the rotating shaft; The fan blades are connected to the outer peripheral wall of the mounting sleeve and form an acute angle with the inner bottom wall of the cavity; and A scraper is attached to the outer peripheral wall of the mounting sleeve and extends axially along the shaft. The scraper is located above the fan blade, and the outer edge of the scraper can scrape off impurities that are blocked at the inlet of the water spray hole.

3. The underground switch rotary nozzle as described in claim 1, characterized in that, A transition sleeve is provided between the connecting sleeve and the rotating head, and the transition sleeve is threadedly connected to the connecting sleeve. A gearbox is provided inside the transition sleeve, and there is a clearance between the gearbox and the transition sleeve. An input shaft is provided below the gearbox and an output shaft is provided above it. The output shaft is connected to the rotating head and is used to drive the rotating head to rotate. A fan wheel is connected to the input shaft, and the fan wheel can rotate under the action of water flow.

4. The underground switch rotary nozzle as described in claim 3, characterized in that, The output shaft is provided with a rotating sleeve that extends upward to the top of the transition sleeve. The rotating sleeve is threadedly connected to the rotating head and communicates with both the rotating head and the transition sleeve.

5. The underground switch rotary nozzle as described in claim 4, characterized in that, The rotating sleeve is provided with a cross plate, and a snap-fit ​​connector is connected to the output shaft. The upper end face of the snap-fit ​​connector is provided with a cross groove, which is provided through the outer peripheral wall of the snap-fit ​​connector and is used to accommodate the cross plate.

6. The underground switch rotary nozzle as described in claim 5, characterized in that, A wear-resistant pad is provided between the transition sleeve and the rotating head.

7. The underground switch rotary nozzle as described in claim 5, characterized in that, The upper end of the transition sleeve is provided with a gathering platform that converges towards the central axis, and the lower end of the rotating sleeve is provided with a limiting platform that protrudes outward and is located below the gathering platform. A rotating sealing ring is provided between the limiting platform and the gathering platform.

8. The underground switch rotary nozzle as described in claim 1, characterized in that, A ball valve is rotatably connected inside the connecting sleeve. A water passage hole is radially provided on the ball valve. An opening and closing shaft that radially passes through the connecting sleeve is connected to the outer peripheral wall of the ball valve. The opening and closing shaft is rotatably connected to the connecting sleeve. A slot is provided on the outer end face of the opening and closing shaft.

9. The underground switch rotary nozzle as described in claim 8, characterized in that, A sealing ring is fitted around the outer periphery of the opening and closing shaft.

10. The underground switch rotary nozzle as described in claim 8, characterized in that, The ball valve is provided with sealing gaskets at both the top and bottom.

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