Flow regulating shower head

Abstract

The utility model provides a flow adjustable shower nozzle, including base, guide seat, top seat, bolt, the base is with its axis as center surrounds to set up a plurality of first flow port, is along the axis of base and is provided with first thread hole through base, with the axis of guide seat as center surrounds to set up a plurality of second flow port, a plurality of second flow port with a plurality of first flow port butt joint, the top surface of guide seat is provided with spiral cutout, the outer conical surface of top seat is configured as spiral cut surface, spiral cut surface can be contacted with spiral cutout and forms the sprinkling irrigation gap between both, bolt passes through top seat and is connected with guide seat 200 and / or first thread hole thread, the pitch of bolt is same with the pitch of spiral cutout. According to the present application, the overlapping area of first flow port and second flow port is adjusted according to the size of sprinkling irrigation area, so as to flexibly and accurately adjust the sprinkling irrigation radius, realize covering the sprinkling irrigation area and not involve the non-sprinkling irrigation area.

Description

Technical Field

[0001] This utility model relates to an accessory for sprinkler irrigation equipment, and more particularly to a flow-adjustable sprinkler head. Background Technology

[0002] Currently, most common irrigation sprinklers only have adjustable angles.

[0003] In the patents with reference patent numbers 202110125362.3 and 202120257374.7, although the angle of irrigation can be adjusted by the combination of spiral cut surface and spiral notch, there are still limitations in adjusting the irrigation range.

[0004] When irrigation is needed for a small area without affecting a large area, the irrigation radius can only be changed by replacing the nozzle with a different flow rate, which is not flexible or accurate enough. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides an adjustable flow nozzle. Through the combination of a single spiral cut and a spiral cross-section, it achieves 360° range irrigation while simultaneously adjusting the overlap area of ​​the first and second guide orifices according to the size of the irrigation area. This allows for flexible and accurate adjustment of the irrigation radius, ensuring coverage of the irrigation area without affecting non-irrigated areas. The technical solution adopted by this utility model is as follows: An adjustable flow nozzle includes: The base has several first guide ports arranged around its axis. The first guide ports are used to connect to the water inlet channel. A first threaded hole is provided through the base along its axis. The guide seat is threaded to the top of the base, and a plurality of second guide ports are arranged around the axis of the guide seat. The plurality of second guide ports are connected to a plurality of first guide ports one by one. The top surface of the guide seat is provided with a spiral cut. A top seat is disposed on the top of the guide seat, and its outer conical surface is configured as a helical cut surface, which can contact the helical cut and form a spraying gap between them; A bolt passes through the top seat and is threadedly connected to the guide seat and / or the first threaded hole, wherein the pitch of the bolt is the same as the pitch of the helical cut; The base, guide seat, top seat, and bolts are arranged coaxially.

[0006] Furthermore, it also includes: Several first facets are arranged in a ring around the axis of the base on the outer surface of the base; Several second cut surfaces are arranged in a ring around the axis of the guide seat on the outer surface of the guide seat; Any of the first cross-sections can correspond to any of the second cross-sections, such that the overlap area between the first flow guide and the corresponding second flow guide is 50% or 100% of the cross-section of the first flow guide.

[0007] Furthermore, the base has an external thread extending downward from its top, and the guide seat has a threaded hole extending upward from its bottom. The base and the guide seat are connected by the external thread and the threaded hole.

[0008] Furthermore, the inner hole of the base is partially provided with internal threads.

[0009] Furthermore, it also includes: A guide hole extends through the guide seat along its axis; The guide sleeve is interference-fitted into the guide hole; The bolt passes through the guide sleeve.

[0010] Furthermore, it also includes: Several protrusions are arranged in a ring around the axis of the guide seat on the outer surface of the guide seat.

[0011] Furthermore, it also includes: A buffer groove extends downward from the top of the guide seat, the top of the second flow port communicates with the buffer groove, and the bottom of the top seat is submerged in the buffer groove.

[0012] The advantages of this utility model are: by rotating the top seat before watering to make the spiral cut and spiral surface intersect and expose the spiral cut, the angle of the spraying gap is adjusted, and then the base is screwed to change the overlapping area between the first guide port and the second guide port, thereby adjusting the spraying range. Thus, the flow rate can be increased or decreased as needed, thereby changing the spraying radius. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structural composition of this utility model.

[0014] Figure 2 This is a first-person exploded view of the present invention.

[0015] Figure 3 This is a second-view exploded view of the present invention.

[0016] Figure 4 This is a half-sectional view of the present invention.

[0017] Figure 5 This is a schematic diagram showing the fit between the guide seat and the top seat.

[0018] Figure 6 Diagram showing the fit between the base and guide seat at 50% flow rate.

[0019] Figure 7 Diagram showing the fit between the base and guide seat at 100% flow rate.

[0020] In the diagram: 100-base, 110-first guide port, 120-first threaded hole, 130-first cut surface, 140-external thread, 150-internal thread, 200-guide seat, 210-second guide port, 220-spiral cut, 230-second cut surface, 240-threaded hole, 250-guide hole, 260-protruding rib, 270-buffer groove, 310-top seat, 310-spiral cut surface, 320-positioning hole, 400-bolt, 500-guide sleeve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages 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 only used to explain this utility model and are not intended to limit this utility model.

[0022] Please see the appendix Figure 1 -Appendix Figure 5 This application proposes a flow-adjustable nozzle, comprising: a base 100, with a plurality of first guide ports 110 arranged around its axis, the first guide ports 110 being used to connect to a water inlet channel, and a first threaded hole 120 provided through the base 100 along its axis; a guide seat 200 threadedly connected to the top of the base 100, with a plurality of second guide ports 210 arranged around its axis, the plurality of second guide ports 210 being connected one-to-one with the plurality of first guide ports 110, the guide seat 200... The top surface is provided with a helical cut 220; the top seat 300 is disposed on the top of the guide seat 200, and its outer conical surface is configured with a helical cut surface 310, which can contact the helical cut 220 and form a spraying gap between them; the bolt 400 passes through the top seat 300 and is threadedly connected to the guide seat 200 and / or the first threaded hole 120, and the pitch of the bolt 400 is the same as the pitch of the helical cut 220; wherein, the base 100, the guide seat 200, the top seat 300, and the bolt 400 are arranged coaxially.

[0023] The fit between the first guide port 110 and the second guide port 210 is shown in the attached figure. Figure 2 and attached Figure 4As shown, the first guide port 110 and the second guide port 210 are completely identical in shape, width, and number. When the cross-sections of each first guide port 110 and the corresponding second guide port 210 completely overlap, the flow rate of the entire nozzle is at its maximum; when the cross-sections of each first guide port 110 and the corresponding second guide port 210 are at their maximum offset, the flow rate of the entire nozzle is at its minimum. Therefore, without adjusting the spray angle of the top seat 300, the flow rate of the nozzle can be changed by the relative rotation between the base 100 and the guide seat 200, thereby adjusting the spray radius.

[0024] The specific rotational connection relationship between the base 100 and the guide seat 200 is as follows: the top of the base 100 extends downward and is provided with an external thread 140, and the bottom of the guide seat 200 extends upward and is provided with a threaded hole 240. The base 100 and the guide seat 200 are threadedly connected by the external thread 140 and the threaded hole 240.

[0025] The nozzle's spray angle adjustment structure is shown in the attached figure. Figure 1 and attached Figure 5 As shown, it is easy to understand that the beginning and end of the spiral cut 220 and the beginning and end of the spiral cut surface 310 respectively form a step. The mutual contact of the two steps makes the length of the sprinkler gap 0 in the initial state. As the top seat 300 rotates, the two steps gradually open, the length of the sprinkler gap gradually increases, and the water source can be sprayed out through the spiral cut 220 between the two steps, and finally sprayed in a fan shape in the sprinkler area.

[0026] Bolt 400 serves to install top mount 300, as shown in the attached diagram. Figure 3 Appendix Figure 4 Appendix Figure 5 As shown, the bolt 400 is interference-fitted with the positioning hole 320 on the top seat 300 and forms an integral part with the top seat 300. On the other hand, it is threadedly connected to the guide seat 200 or the base 100 so as to connect the guide seat 200 and the top seat 300.

[0027] In one embodiment, bolt 400 is threadedly connected to guide seat 200 (not shown). By directly threading bolt 400 to guide seat 200, the fit between helical cut 220 and helical surface 310 can be locked. By limiting the pitch of bolt 400, the pitch of helical cut 220, and the pitch of helical surface 310, the rotation angle of helical surface 310 after one revolution of bolt 400 is specific, thus the opening angle of the irrigation gap is also specific. Base 100 is rotatably connected to guide seat 200 independently, without the need for bolt 400.

[0028] In another embodiment, the bolt 400 is threadedly connected to the base 100. Specifically, a guide hole 250 is provided through the guide seat 200 along its axis, and a guide sleeve 500 is interference-fitted into the guide hole 250. The bolt 400 passes through the guide sleeve 500. By providing the guide sleeve 500 within the guide seat 200, the relative position of the bolt 400 is positioned while reducing the frictional resistance between the bolt 400 and the guide seat 200. The connection between the top seat 300 and the base 100 indirectly fixes the position of the guide seat 200. By rotating the bolt 400, the axial distance between the top seat 300 and the guide seat 200 can be adjusted, thereby further adjusting the flow rate. Alternatively, with the guide seat 200 and the top seat 300 relatively fixed, the base 100 can be rotated to adjust the overlap area between the first guide port 110 and the second guide port 210 to adjust the flow rate.

[0029] For faster and more precise adjustment of the outlet water flow rate, please refer to the appendix. Figure 2 Appendix Figure 6 and attached Figure 7 This application further includes: a plurality of first cut surfaces 130 arranged in a ring around the axis of the base 100 on the outer surface of the base 100; a plurality of second cut surfaces 230 arranged in a ring around the axis of the guide seat 200 on the outer surface of the guide seat 200; any first cut surface 130 can correspond to any second cut surface 230, such that the overlapping area between the first guide port 110 and the corresponding second guide port 210 is 50% or 100% of the cross-section of the first guide port 110.

[0030] In the initial state, when the base 100 and guide seat 200 are properly engaged, the first guide port 110 and the second guide port 210 are 100% overlapped, achieving 100% flow rate. Several first cut surfaces 130 and several second cut surfaces 230 correspond one-to-one on the same plane. Holding the guide seat 200 and top seat 300 still, rotate the base 100 individually so that a certain first cut surface 130 rotates to correspond with the next second cut surface 230 and is level with it. The first guide port 110 is quickly adjusted to be half overlapped with the second guide port 210, achieving 50% flow rate, thus achieving the purpose of quickly and accurately adjusting the flow rate.

[0031] For easy connection of base 100 to water pipe, see attached Figure 3 As shown, the inner hole of the base 100 is partially provided with an internal thread 150; the inside of the water pipe is a water inlet channel, which flows to the nozzle and sprays onto the irrigation area.

[0032] To facilitate increasing the friction when holding the guide seat 200, and to allow for independent rotation of the base 100 or the top seat 300, this application also includes a plurality of protrusions 260, which are arranged in a ring around the axis of the guide seat 200 on the outer surface of the guide seat 200.

[0033] To achieve buffering and confluence of water before it exits the spiral cut, and to create a compact nozzle structure, this application further includes a buffer groove 270 extending downward from the top of the guide seat 200. The top of the second guide port 210 communicates with the buffer groove 270, and the bottom of the top seat 300 is submerged within the buffer groove 270. The water is mixed in the buffer groove 270 before flowing from the second guide port 210 to the spiral cut 220, preventing excessively high local water pressure.

[0034] In summary, this application achieves 360° range irrigation through the combination of a single spiral cut and a spiral cut surface, while adjusting the overlap area of ​​the first and second guide ports according to the size of the irrigation area, thereby flexibly and accurately adjusting the irrigation radius to cover the irrigation area without affecting non-irrigation areas.

[0035] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A flow-adjustable nozzle, characterized in that, include: The base (100) has several first guide ports (110) arranged around its axis. The first guide ports (110) are used to connect the water inlet channel. A first threaded hole (120) is provided through the base (100) along its axis. The guide seat (200) is threaded to the top of the base (100). A plurality of second guide ports (210) are arranged around the axis of the guide seat (200). The plurality of second guide ports (210) are connected to the plurality of first guide ports (110) one by one. The top surface of the guide seat (200) is provided with a spiral cut (220). A top seat (300) is disposed on the top of the guide seat (200), and its outer conical surface is configured as a helical cut (310), which can contact the helical cut (220) and form a spraying gap between them; A bolt (400) passes through the top seat (300) and is threaded to the guide seat (200) and / or the first threaded hole (120), the pitch of the bolt (400) being the same as the pitch of the helical cut (220); The base (100), guide seat (200), top seat (300), and bolt (400) are arranged coaxially.

2. The adjustable flow nozzle as described in claim 1, characterized in that, Also includes: Several first facets (130) are arranged in a ring around the axis of the base (100) on the outer surface of the base (100); Several second cut surfaces (230) are arranged in a ring around the axis of the guide seat (200) on the outer surface of the guide seat (200); Any of the first cross-sections (130) can correspond to any of the second cross-sections (230) such that the overlapping area between the first flow port (110) and the corresponding second flow port (210) is 50% or 100% of the cross-section of the first flow port (110).

3. The adjustable flow nozzle as described in claim 2, characterized in that: The base (100) has an external thread (140) extending downward from the top, and the guide seat (200) has a threaded hole (240) extending upward from the bottom. The base (100) and the guide seat (200) are connected by the external thread (140) and the threaded hole (240).

4. The adjustable flow nozzle as described in claim 1, characterized in that: The inner hole of the base (100) is partially provided with an internal thread (150).

5. The flow-adjustable nozzle as described in any one of claims 1-4, characterized in that, Also includes: A guide hole (250) passes through the guide seat (200) along the axis of the guide seat (200). The guide sleeve (500) is interference-fitted into the guide hole (250); The bolt (400) passes through the guide sleeve (500).

6. The adjustable flow nozzle as described in claim 5, characterized in that, Also includes: Several protrusions (260) are arranged in a ring around the axis of the guide seat (200) on the outer surface of the guide seat (200).

7. The adjustable flow nozzle as described in claim 5, characterized in that, Also includes: A buffer groove (270) extends downward from the top of the guide seat (200), the top of the second guide port (210) is connected to the buffer groove (270), and the bottom of the top seat (300) is submerged in the buffer groove (270).

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