A near-end sprinkling mechanism and a sprinkling lance

Abstract

The utility model discloses a kind of near-end sprinkling irrigation mechanism and sprinkling irrigation lance, near-end sprinkling irrigation mechanism includes support rod and two spray heads, support rod is equipped with the water passage that is through support rod along support rod axial, the bottom center of support rod is equipped with connecting rod, connecting rod inside is equipped with water inlet channel, water inlet channel and water passage are communicated;Two spray heads are movably connected in the both ends of support rod by two elbows respectively, the end of spray head away from support rod is equipped with protruding nozzle, nozzle is surrounded and is formed with the water outlet channel that water passage is communicated, water outlet channel gradually expands along water outlet direction and forms the water outlet of flat shape at the end of nozzle away from elbow. By setting nozzle, water outlet flat design, and water outlet channel gradually expands along water outlet direction, realize wide uniform irrigation, and water flow speed can be reduced, so that water flow impact force reduces, avoid the damage of plant such as flower and grass to be sprayed irrigation.

Description

Technical Field

[0001] This utility model relates to the field of sprinkler irrigation equipment technology, and in particular to a near-end sprinkler irrigation mechanism and a sprinkler spray gun. Background Technology

[0002] Traditional sprinkler guns typically have three nozzles—far, medium, and near—to comprehensively cover the area to be irrigated. Existing near-end nozzles mainly employ a conical nozzle with a follower design to achieve high-speed jets and a fragmented spray effect. While suitable for long-distance farmland irrigation and dust suppression, these nozzles struggle to meet the low-impact, wide-coverage requirements for lawns and flowers, often resulting in incomplete coverage or damage to plants. Utility Model Content

[0003] The purpose of this invention is to provide a near-end sprinkler irrigation mechanism with a simple structure that can achieve wide-area uniform irrigation.

[0004] To achieve this objective, the present invention adopts the following technical solution: a near-end sprinkler irrigation mechanism, comprising a support rod and two nozzles. The support rod has a water passage extending through the support rod along its axial direction. A connecting rod is provided at the center of the bottom of the support rod, and a water inlet channel is provided inside the connecting rod, which is connected to the water passage. The two nozzles are movably connected to both ends of the support rod via two elbows. The end of each nozzle away from the support rod has a protruding nozzle, which surrounds and forms a water outlet channel communicating with the water passage. The water outlet channel gradually expands along the water outlet direction and forms a flat water outlet at the end of the nozzle away from the elbow.

[0005] Preferably, along the width direction of the water outlet channel, the inner walls on both sides of the water outlet channel are two opposing arc-shaped curved surfaces.

[0006] Preferably, along the width direction of the water outlet channel, the inner walls of the two side walls of the water outlet channel are arranged at an angle, and the angle is α, satisfying: 20°<α<150°.

[0007] Preferably, the nozzle further includes a ball joint integrally formed with the nozzle, the elbow having a ball groove, and the ball joint being confined within the ball groove.

[0008] Preferably, the ball joint has a middle channel that connects the water passage and the water outlet, and the inner diameter of the middle channel gradually decreases along the water outlet direction of the nozzle.

[0009] Preferably, the end of the ball valve away from the nozzle is provided with a guide portion, which is used to guide water into the intermediate channel.

[0010] Preferably, the outer wall of the nozzle is provided with a reinforcing part, which covers the connection between the nozzle and the ball joint.

[0011] Preferably, the elbow is provided with a first hemispherical groove at the end away from the support rod, and a limiting ring is connected to the end of the elbow away from the support rod. The limiting ring is provided with a second hemispherical groove and a through hole. The second hemispherical groove and the first hemispherical groove are joined together to form the spherical groove, and the through hole communicates with the second hemispherical groove to allow the nozzle to pass through.

[0012] Another objective of this invention is to provide a sprinkler gun with a simple structure that can achieve wide-area uniform irrigation at the near end.

[0013] To achieve this objective, the present invention adopts the following technical solution: a sprinkler gun, comprising a sprinkler body and the aforementioned near-end sprinkler mechanism, wherein the sprinkler body is provided with a main pipeline, the support rod is fixed to the main pipeline and the water inlet channel is connected to the main pipeline.

[0014] The beneficial effects of this invention are as follows: By setting a nozzle with a flat outlet and a gradually expanding water channel along the water outlet direction, the water flow spreads out from a narrow inlet to a wide outlet, forming a fan-shaped or surface-shaped water curtain. This results in a wider and more uniform coverage area, achieving wide-area uniform irrigation. Furthermore, it reduces water flow velocity and impact force, preventing damage to plants such as flowers and grasses. In addition, the flat water channel eliminates the need for a traditional water churning device, simplifying the nozzle structure and reducing the production and operating costs of the near-end irrigation mechanism.

[0015] This utility model also provides a sprinkler gun that sprays water into the near-end area through a flat, gradually expanding water outlet channel, achieving wide-area uniform irrigation, reducing impact, and protecting the plants to be irrigated. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the near-end sprinkler irrigation mechanism according to an embodiment of this application;

[0017] Figure 2 This is a cross-sectional view of the near-end sprinkler irrigation mechanism according to an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the nozzle structure according to an embodiment of this application.

[0019] In the diagram: 100, support rod; 110, water passage; 120, connecting rod; 121, water inlet passage; 130, elbow; 200, nozzle; 210, nozzle; 211, water outlet passage; 220, ball joint; 221, intermediate passage; 222, guide section; 230, reinforcing section; 240, limit ring. Specific Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] Reference Figures 1 to 3As shown in the embodiment of this application, a near-end sprinkler irrigation mechanism includes a horizontal support rod 100 and two sprinkler heads 200. The support rod 100 has a water passage 110 extending through the support rod 100 along its axial direction. A vertical connecting rod 120 is located at the center of the bottom of the support rod 100, and a water inlet channel 121 is provided inside the connecting rod 120, which communicates with the water passage 110. The two sprinkler heads 200 are movably connected to both ends of the support rod 100 via two elbows 130. Specifically, one end of the elbow 130 is sealed to the support rod 100, and the other end is movably connected to the sprinkler head 200. The nozzle 200 has a protruding nozzle 210 at the end away from the support rod 100. The nozzle 210 surrounds and forms a water outlet channel 211 that communicates with the water passage 110. The nozzle 210 is a thin-walled structure that matches the shape of the water outlet channel 211. The water outlet channel 211 gradually expands along the water outlet direction of the nozzle 210 and forms a flat water outlet at the end of the nozzle 210 away from the elbow 130. Specifically, at least one inner wall of the water outlet channel 211 is inclined towards the edge of the nozzle 210 along the water outlet direction of the nozzle 210, so that the inner diameter of the water outlet channel 211 gradually increases along the water outlet direction of the nozzle 210. The water outlet channel 211 is usually set as a flat structure with a height-to-width ratio of less than 25%. For example, if the thickness of the water outlet channel 211 is 3cm, then the minimum width of the water outlet channel 211 is greater than 12cm. If the minimum width of the water outlet channel 211 is 21cm, then the thickness of the water outlet channel 211 is less than 7cm. This causes the end of the nozzle 210 away from the elbow 130 to form a flat water outlet. In this embodiment, the water outlet direction of the nozzle 210 is defined as the length direction of the water outlet channel 211, the thickness direction of the nozzle 210 is defined as the height direction of the flat water outlet channel 211, and the width direction of the nozzle 210 is defined as the width direction of the flat water outlet channel 211. The two side walls of the water outlet channel 211 in the width direction are arranged symmetrically at an included angle, so that the width of the water outlet channel 211 in the water outlet direction of the nozzle 210 gradually increases.

[0025] Understandably, by setting the nozzle 210 with a flat outlet design in the water outlet channel 211 and a gradually increasing inner diameter of the water outlet channel 211, the water flow spreads out from the narrow inlet to the wide outlet, forming a fan-shaped or surface water curtain. This results in a wider and more uniform coverage area, achieving wide-area uniform irrigation. Furthermore, it reduces the water flow velocity, decreasing the water flow impact and preventing damage to the plants being irrigated. In addition, the flat water outlet channel 211 eliminates the need for a traditional water churning device, simplifying the structure of the sprinkler head 200 and reducing the production and operating costs of the near-end sprinkler irrigation mechanism.

[0026] Furthermore, along the thickness direction of the water outlet channel 211, the inner walls on both sides of the water outlet channel 211 are two symmetrically arranged planes, and along the width direction of the water outlet channel 211, the inner walls on both sides of the water outlet channel 211 are two opposing arc-shaped curved surfaces. The two planes are connected by the transition between the two opposing arc-shaped curved surfaces. In this application, the central angle of the arc corresponding to the arc-shaped curved surface is 180°. At this time, the projection of the water outlet channel 211 on the projection plane perpendicular to the water outlet direction is a racetrack shape composed of two semicircles and a rectangle.

[0027] By setting two arc-shaped curved surfaces to connect and transition the two planes, the flow separation phenomenon (fluid detaching from the wall to form vortices) caused by the right-angle or sharp-angle structure of the water outlet channel 211 can be eliminated, reducing frictional resistance and local resistance, dispersing stress, avoiding local flow velocity distortion, and ensuring that the thickness and width of the sprayed water curtain remain consistent.

[0028] Reference Figure 3 As shown, it can be understood that along the width direction of the water outlet channel 211, the two arc-shaped sidewalls of the water outlet channel 211 are arranged at an included angle of α, satisfying: 20° < α < 150°. In this application, the included angle α between the two sidewalls of the water outlet channel 211 is 25°.

[0029] The spray width of the water outlet channel 211 is proportional to the included angle between its two side walls. The included angle between the two side walls of the water outlet channel 211 is limited to between 20° and 150° to avoid the coverage width of the water outlet channel 211 being too small during irrigation, and at the same time to avoid the water jet distance of the water outlet channel 211 being too short, so as to ensure that the water outlet fully covers the area to be irrigated.

[0030] Reference Figure 2 and Figure 3 As shown, it can be understood that the nozzle 200 also includes a ball joint 220 integrally formed with the nozzle 210, and the elbow 130 is provided with a ball groove, the ball joint 220 being confined within the ball groove.

[0031] By using a ball joint 220 to install the nozzle 200, three-dimensional adjustment of the nozzle 210 can be achieved, greatly expanding the adjustment angle of the nozzle 210 and improving the practicality of the sprinkler irrigation structure.

[0032] Furthermore, the ball valve 220 is provided with an intermediate channel 221, which connects the water channel 110 and the water outlet channel 211. The inner diameter of the intermediate channel 221 gradually decreases along the water outlet direction of the nozzle 210, that is, the intermediate channel 221 is a tapered shape that gradually narrows along the water outlet direction.

[0033] By setting an intermediate channel 221, which is tapered, the water flow gains kinetic energy before entering the outlet channel 211, increasing the flow velocity and reducing the pressure, thus providing an energy basis for the wide-range spraying of the outlet channel 211 and ensuring a certain irrigation distance. On the other hand, the conical intermediate channel 221 enables a smooth transition of the water flow between the water passage 110 and the outlet channel 211, reducing local resistance loss and suppressing turbulence and eddies at the inlet of the outlet channel 211, further improving the uniformity of the water flow.

[0034] Furthermore, the ball valve 220 is provided with a guide portion 222 at the end away from the nozzle 210. The guide portion 222 is a conical structure provided on the surface of the ball valve 220 and surrounding the intermediate channel 221. The guide portion 222 is used to guide water into the intermediate channel 221.

[0035] By setting up the guide section 222, the inlet area of ​​the intermediate channel 221 is indirectly expanded, guiding the water flow to enter the intermediate channel 221 quickly and improving the flow efficiency of the water flow.

[0036] Reference Figure 3 As shown, it can be understood that the outer wall of the nozzle 200 is provided with a reinforcing part 230, which is integrally formed on the nozzle 200 and covers the connection between the nozzle 210 and the ball joint 220.

[0037] Because the ball joint 220 is spherical in shape while the nozzle 210 is flat, the stress at the connection between the nozzle 210 and the ball joint 220 is relatively high, which may lead to tearing or breakage during high-pressure jetting. By incorporating the reinforcing part 230, the mechanical structural strength of the nozzle 200 can be effectively improved, the stress at the connection between the nozzle 210 and the ball joint 220 can be absorbed, and the service life of the nozzle 200 can be extended.

[0038] Reference Figure 2 As shown, it can be understood that the end of the elbow 130 away from the support rod 100 is provided with a first hemispherical groove, and the end of the elbow 130 away from the support rod 100 is connected to a limiting ring 240. The limiting ring 240 is threadedly connected to the elbow. The limiting ring 240 is provided with a second hemispherical groove and a through hole. The second hemispherical groove and the first hemispherical groove are combined to form a ball groove. The through hole communicates with the second hemispherical groove to allow the nozzle 210 to pass through.

[0039] By setting a limit ring 240, the limit ring 240 and the elbow 130 work together to limit the nozzle 200, while ensuring the flexible adjustment of the nozzle 200, the nozzle 200 is easy to disassemble and install, effectively improving the ease of installation and removal of the nozzle 200.

[0040] According to another embodiment of this application, a sprinkler gun includes a main body and the aforementioned near-end sprinkler mechanism. The main body has a main pipeline, a support rod 100 is fixed to the main pipeline, and the water inlet channel 121 is connected to the main pipeline. Furthermore, the sprinkler gun also includes a mid-end sprinkler structure, a far-end sprinkler structure, and a rotation structure. The near-end sprinkler mechanism, the mid-end sprinkler structure, and the far-end sprinkler structure share the same main pipeline. Since sprinkler gun technology is mature and not the focus of this application, it will not be described in detail here.

[0041] Understandably, by using the flat, gradually widening water outlet channel 211 to irrigate the near-end area of ​​the sprinkler, wide-area, uniform irrigation is achieved, reducing impact and protecting the plants to be irrigated.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A near-end sprinkler irrigation mechanism, characterized in that, include: A support rod (100) is provided with a water passage (110) that runs through the support rod (100) along its axial direction. A connecting rod (120) is provided at the bottom center of the support rod (100). A water inlet channel (121) is provided inside the connecting rod (120). The water inlet channel (121) and the water passage (110) are connected. Two nozzles (200) are movably connected to the two ends of the support rod (100) via two elbows (130). The nozzle (200) has a protruding nozzle (210) at the end away from the support rod (100). The nozzle (210) surrounds and forms a water outlet channel (211) that communicates with the water passage (110). The water outlet channel (211) gradually expands along the water outlet direction and forms a flat water outlet at the end of the nozzle (210) away from the elbow (130).

2. The near-end sprinkler irrigation mechanism according to claim 1, characterized in that, Along the width direction of the water outlet channel (211), the inner walls on both sides of the water outlet channel (211) are two opposing arc-shaped curved surfaces.

3. The near-end sprinkler irrigation mechanism according to claim 1 or 2, characterized in that, Along the width direction of the water outlet channel (211), the inner walls on both sides of the water outlet channel (211) are arranged at an angle, and the angle is α, satisfying: 20°<α<150°.

4. The near-end sprinkler irrigation mechanism according to claim 1, characterized in that, The nozzle (200) also includes a ball joint (220) integrally formed with the nozzle (210), the elbow (130) is provided with a ball groove, and the ball joint (220) is limited to the ball groove.

5. The near-end sprinkler irrigation mechanism according to claim 4, characterized in that, The ball valve (220) is provided with a middle channel (221), which connects the water passage (110) and the water outlet (211). The inner diameter of the middle channel (221) gradually decreases along the water outlet direction of the nozzle (210).

6. The near-end sprinkler irrigation mechanism according to claim 5, characterized in that, The ball joint (220) has a guide portion (222) at one end away from the nozzle (210), and the guide portion (222) is used to guide water into the intermediate channel (221).

7. The near-end sprinkler irrigation mechanism according to claim 4, characterized in that, The outer wall of the nozzle (200) is provided with a reinforcing part (230), which covers the connection between the nozzle (210) and the ball joint (220).

8. The near-end sprinkler irrigation mechanism according to claim 4, characterized in that, The elbow (130) has a first hemispherical groove at one end away from the support rod (100), and a limiting ring (240) is connected to the other end of the elbow (130) away from the support rod (100). The limiting ring (240) has a second hemispherical groove and a through hole. The second hemispherical groove and the first hemispherical groove are joined together to form the ball groove. The through hole communicates with the second hemispherical groove so that the nozzle (210) can pass through.

9. A sprinkler gun, characterized in that, The device includes a spray gun body and a near-end irrigation mechanism as described in any one of claims 1-8, wherein the spray gun body is provided with a main pipeline, the support rod (100) is fixed to the main pipeline and the water inlet channel (121) is connected to the main pipeline.

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