Watering nozzle

Abstract

To provide a water sprinkler nozzle capable of switching the water sprinkling mode with a simple configuration. A watering nozzle (10) according to the present disclosure comprises a head support part (23) having an inner tubular part (26) that defines a first space (27) therein, an outer tubular part (41) that defines a second space (44) in the radial direction, and a rotating head part (40) that has a watering surface part (43) and is movably supported on the head support part (23), wherein the inner tubular part (26) has a first opening (30), the outer tubular part (41) has a second opening, and is movable relative to the inner tubular part (26), and the watering surface part (43) has an inner sprinkling area 48 capable of sprinkling water from the first space 27 and an outer sprinkling area 49 capable of sprinkling water from the second space 44, and in a closed state in which the outer tube portion 41 blocks the first opening 30, water from the inlet side is sprinkled from the inner sprinkling area 48, and in a connected state in which the second opening overlaps the first opening 30 and the first space 27 and the second space 44 are connected, water is sprinkled from both the inner sprinkling area 48 and the outer sprinkling area 49.

Description

[Technical Field]

[0001] The present disclosure relates to a watering nozzle. [Background technology]

[0002] Patent Document 1 discloses a watering nozzle. This watering nozzle includes a main body having a water supply connection, a handle, and a lever, an inner cylinder, and an outer cylinder. A water supply pipe that supplies water to the inner cylinder is arranged inside the main body. The outer cylinder has a water discharge screen that forms its front surface. The water discharge screen has a circular inner region with multiple shower holes and an annular outer region with multiple shower holes. The female thread of the outer cylinder and the male thread of the inner cylinder form a threaded connection, and the rotational position and front-to-rear position can be changed by rotating the outer cylinder relative to the inner cylinder. The relative movement of the outer cylinder and inner cylinder makes it possible to select a state in which water from the supply flow path reaches only the first flow path, a state in which water reaches only the second flow path, or a water-stopped state. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-81915 Summary of the Invention [Problem to be solved by the invention]

[0004] In the watering nozzle described in Patent Document 1, the relative movement of the outer and inner cylinders selects between a state in which water is discharged only from the circular inner region of the water discharge screen via the first flow path, and a state in which water is discharged only from the annular outer region of the water discharge screen via the second flow path. This requires a complex structure to switch both the rotational position and the front-rear position of the outer and inner cylinders.

[0005] Therefore, an object of the present disclosure is to provide a sprinkler nozzle that can switch the water sprinkling mode with a simple configuration. [Means for solving the problem]

[0006] In order to solve the above problems, a first aspect of the present invention is a sprinkler nozzle capable of sprinkling water flowing in from an inlet, comprising: a support part having an inner tubular part defining a first space inside that is continuous with a water flow path from the inlet side; an outer tubular part defining a second space radially inside that is arranged to surround the first space; and a sprinkler surface part capable of sprinkling water, the head part being movably supported on the support part, the inner tubular part having a first opening that opens in the radial direction, the outer tubular part having a second opening that opens in the radial direction, the head part being close to or in contact with the inner tubular part from the outside in the radial direction, and being movable relative to the inner tubular part by movement of the head part relative to the support part, the sprinkler surface part being able to sprinkle water from the first space The head portion has an inner sprinkling area capable of spraying water from the first space, and an annular outer sprinkling area arranged to surround the inner sprinkling area and capable of spraying water from the second space, and the head portion can be moved relative to the support portion to a closed state in which the outer tube portion blocks the first opening of the inner tube portion, and a communicating state in which the second opening of the outer tube portion overlaps the first opening of the inner tube portion, connecting the first space and the second space, and in the closed state, water from the inlet side is sprayed from the inner sprinkling area through the first space, and in the communicating state, water from the inlet side is sprayed from both the inner sprinkling area and the outer sprinkling area through the first space and the second space.

[0007] A second aspect of the present invention is a sprinkler nozzle of the first aspect, wherein the head portion is rotatably supported on the support portion so as not to move axially, and the outer tube portion is rotatable relative to the inner tube portion by rotation of the head portion relative to the support portion.

[0008] A third aspect of the present invention is a sprinkler nozzle of the second aspect described above, wherein the first openings of the inner tube portion are provided in two positions opposite each other across the rotation axis in a cross section perpendicular to the rotation axis of the head portion, and the second openings of the outer tube portion are provided in two positions opposite each other across the rotation axis in a cross section perpendicular to the rotation axis.

[0009] A fourth aspect of the present invention is a sprinkler nozzle of the first or second aspect described above, wherein the support portion has a third opening arranged in the flow path closer to the inlet than the outer tube portion, a third space arranged outside the third opening, and an elastic member arranged in the third space. [Effects of the Invention]

[0010] According to the present disclosure, it is possible to provide a watering nozzle that is capable of switching the water spray mode with a simple configuration. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a side view of a sprinkler nozzle according to an embodiment of the present invention; [Figure 2] FIG. [Figure 3] FIG. 2 is a cross-sectional view of a main part of the sprinkler nozzle taken along the axial direction. [Figure 4] FIG. [Figure 5] FIG. 5 is a cross-sectional view taken along the arrows VV in FIG. 4. DETAILED DESCRIPTION OF THE INVENTION

[0012] An embodiment of the present invention will be described below with reference to the drawings. In each drawing, CL1 indicates the rotation axis (axial center) of the rotary head unit, and CL2 indicates the rotation axis (axial center) of the operating unit. In the following description, "downstream side" refers to the downstream side (water outlet side) of the water flow direction (direction indicated by the white arrow in FIG. 1), and "upstream side" refers to the upstream side of the water flow (water inlet side). The water outflow direction (direction toward the downstream side) may be referred to as "forward," and the opposite side may be referred to as "rearward."

[0013] Figure 1 is a side view of a sprinkler nozzle according to one embodiment of the present invention. Figure 2 is a perspective view of the sprinkler nozzle. Figure 3 is a cross-sectional view of the main parts of the sprinkler nozzle along the axial direction. Figure 4 is a perspective view of the head support part. Figure 5 is a cross-sectional view taken along the arrows VV in Figure 4. In addition to the head support part, Figure 4 also shows the outer cylindrical part of the rotating head part by a two-dot chain line.

[0014] The watering nozzle is attached to the end of a hose and is used, for example, as a gardening watering nozzle. Note that the connection to the watering nozzle is not limited to a hose, and a metal or resin tubular member or a connection unit having other functions may also be connected.

[0015] 1 and 2, sprinkler nozzle 10 according to this embodiment has a main body 20 and a rotating head 40 supported by main body 20, and is capable of switching between different water shapes to sprinkle water. Sprinkler nozzle 10 is capable of sprinkling water that flows in through inlet 22a, which will be described later.

[0016] As shown in Fig. 1, the main body 20 of this embodiment is formed long and thin, and defines a water flow path (hereinafter, sometimes simply referred to as a "flow path") therein. The main body 20 has a grip portion 21 located in the middle portion in the longitudinal direction, a connection portion 22 to which a hose is connected, and a head support portion (support portion) 23 that supports the rotating head portion 40. However, the shape of the main body 20 is not limited to this.

[0017] The grip portion 21 is a portion that can be held by a user during use. The main body portion 20 of this embodiment has an operating unit 24 located near the downstream side of the grip portion 21, which can open and close a valve (not shown) provided in the flow path. While holding the grip portion 21, a user can operate the operating unit 24 to stop or start water. The operating unit 24 of this embodiment is rotatably supported on the main body portion 20 around a rotation axis CL2 that extends in a direction intersecting the extension direction (water flow direction) of the main body portion 20. For example, when the operating unit 24 is tilted upstream, the valve is closed, restricting the flow of water downstream of the valve. By pushing and tilting the operating unit 24 downstream, the valve gradually opens, allowing the flow of water downstream of the valve. Note that the position and shape of the operating unit 24 are not limited to these.

[0018] The connection part 22 of the main body part 20 is provided at the upstream end of the main body part 20 and has an inlet 22a for water to flow into the watering nozzle 10. A member (e.g., a hose) connected to the connection part 22 is connected to a water supply source.

[0019] 3 and 4, the head support part 23 of the main body part 20 is provided at the downstream end part of the main body part 20. The head support part 23 has a cylindrical support main body part 25 that extends continuously from the grip part 21 side, expands to a larger diameter towards the tip side, and then extends forward, a cylindrical inner cylinder part 26 that is disposed radially inside the support main body part 25 and extends forward beyond the support main body part 25, and a sponge member (elastic member) 28 that prevents damage due to freezing.

[0020] The support body 25 is a portion that supports the rotary head 40 (described later) around the rotation axis CL1, and is formed, for example, in a substantially circular tubular shape that opens forward (in the direction in which water flows out). Locking portions 25a for rotatably supporting the rotary head 40 (described later) are formed in the circumferential direction on the outer circumferential surface of the support body 25. The locking portions 25a may be, for example, grooves or the like that are annularly shaped in the circumferential direction.

[0021] The inner cylinder portion 26 is disposed coaxially (on a rotation axis CL1) radially inside the support body portion 25 and is fixedly provided so as not to rotate relative to the support body portion 25. The inner cylinder portion 26 defines a first space 27 therein that is continuous with the water flow path from the inlet 22a side. In this embodiment, the first space 27 extends in a substantially straight line from the flow path upstream of the first space 27. The space between the inner cylinder portion 26 and the support body portion 25 is closed by a closing portion 29 in the shape of an annular plate. That is, water from the flow path upstream of the head support portion 23 is guided and flows into the first space 27 defined by the inner cylinder portion 26. In this embodiment, the closing portion 29 is provided so as to expand radially outward from the upstream end of the inner cylinder portion 26. The tip (downstream tip) of the inner cylinder portion 26 is open, allowing water to flow out.

[0022] 3 to 5, the inner cylindrical portion 26 has a first opening 30 that opens in the radial direction. The first opening 30 is provided so as to allow communication between a first space 27 inside the inner cylindrical portion 26 and a space on the radially outer side of the inner cylindrical portion 26.

[0023] 5, in this embodiment, two first openings 30 are provided at positions facing each other across the rotation axis CL1 in a cross section perpendicular to the rotation axis CL1 of the rotary head unit 40. The first openings 30 on both sides are preferably provided point-symmetrically with respect to the rotation axis CL1 in a cross section perpendicular to the rotation axis CL1 of the rotary head unit 40. In this case, the central angle θ of the first openings 30 on both sides is preferably smaller than 90 degrees. The first openings 30 on both sides are arranged at approximately the same position relative to each other in the length direction (axial direction) of the inner cylindrical portion 26.

[0024] Furthermore, the inner cylinder portion 26 of this embodiment has two recesses 31 recessed radially inward at positions 90 degrees apart from the circumferential centers of the first openings 30 on both sides. Water-stopping rubbers 32 for closing second openings 46 of the outer cylinder portion 41, which will be described later, are disposed in the two recesses 31. A line connecting the circumferential centers of the first openings 30 on both sides and a line connecting the circumferential centers of the two recesses 31 are perpendicular to each other at the position of the rotation axis CL1.

[0025] 3, the head support portion 23 has an extension tubular portion 36 that extends upstream of the closing portion 29. The extension tubular portion 36 extends upstream continuously from the base end (upstream end) of the inner tubular portion 26, and defines a space 33 (hereinafter referred to as the "connecting space 33") that serves as a flow path inside the extension tubular portion 36. That is, in this embodiment, water from the flow path upstream of the head support portion 23 flows into the first space 27 via the connecting space 33 inside the extension tubular portion 36.

[0026] As shown in FIG. 3 , a third space 34 (annular space in this embodiment) is provided radially outward from the extension cylindrical portion 36. The radially outer and upstream sides of the third space 34 are defined by the outer wall of the support main body portion 25. The radially inner side of the third space 34 is defined by the extension cylindrical portion 36. The downstream side of the third space 34 is defined by the closing portion 29. A sponge member 28 (annular sponge member 28 in this embodiment) is disposed in the third space 34. A third opening 35 that communicates the inner connection space 33 with the outer third space 34 is formed in the extension cylindrical portion 36. That is, the head support portion 23 has the third opening 35 disposed in the flow path closer to the inlet 22 a than the outer cylindrical portion 41 described later, the third space 34 disposed outside the third opening 35, and the sponge member (elastic member) 28 disposed in the third space 34. The water flowing through the connection space 33 comes into contact with the sponge member 28 through the third opening 35 .

[0027] As shown in FIGS. 2 to 4 , the rotating head 40 includes a cylindrical outer tube 41 that is in close proximity to or in contact with the inner tube 26 of the head support 23 from the outside in the radial direction, a cylindrical casing 42 that is larger than the outer tube 41 and forms the surface of the rotating head 40, and a sprinkling surface 43 that can sprinkle water. The rotating head 40 is supported by the head support 23 to be rotatable about a rotation axis CL1. In this embodiment, the rotating head 40 is supported by the head support 23 to be rotatable in either direction in the circumferential direction. Furthermore, when the rotating head 40 rotates relative to the head support 23, it does so without moving axially relative to the head support 23. In other words, the rotating head 40 is rotatably supported by the head support 23 so as to be immovable in the axial direction. The rotating head unit 40 has an outer cylinder 41 concentrically arranged (about rotation axis CL1) inside a cylindrical casing 42, and a water spray surface unit 43 arranged to cover the front surfaces of the casing 42 and the outer cylinder 41. The outer cylinder 41 and the water spray surface unit 43 are fixed to the casing 42.

[0028] In this embodiment, the head unit (rotating head unit 40) is configured to be rotatably supported by the head support unit 23, but this is not limited thereto, and the head unit may be movably supported by the head support unit 23. For example, the head unit may be supported by the head support unit 23 so that it can slide linearly in the front-to-rear direction. It is sufficient that the head unit can be moved relative to the head support unit 23 to switch between two water sprinkling modes, which will be described later.

[0029] The casing 42 is formed in a generally cylindrical shape, and its upstream end is rotatably supported by the locking portion 25a of the support body portion 25 of the head support portion 23. Known water leakage prevention measures are taken between the inner peripheral surface of the end of the casing 42 and the outer peripheral surface of the support body portion 25 of the head support portion 23.

[0030] The outer cylinder portion 41 is disposed coaxially around the rotation axis CL1 on the radially inner side of the casing 42 and is fixed to the casing 42. A second space 44 (an annular space in this embodiment) is defined between the outer cylinder portion 41 and the casing 42. As shown in FIG. 3 , when the rotary head portion 40 is attached to the head support portion 23, the second space 44 is disposed to surround the first space 27.

[0031] As shown in Figure 3, outer cylinder portion 41 defines the radially inner side of second space 44, and casing 42 defines the radially outer side of second space 44. The front of second space 44 is defined as spray surface portion 43. In this embodiment, the rear of second space 44 is defined as an annular plate-shaped flange portion 45 that extends radially outward from the rear end of outer cylinder portion 41. Flange portion 45 is positioned forward and spaced from closing portion 29 of head support portion 23, and the outer peripheral end of flange portion 45 is fixed to casing 42.

[0032] The outer cylinder portion 41 is movable (rotatable) relative to the inner cylinder portion 26 by movement (rotation in this embodiment) of the rotary head portion 40 relative to the head support portion 23. In this embodiment, bearings 47 are provided between the inner circumferential surface of the outer cylinder portion 41 and the outer circumferential surface of the inner cylinder portion 26. The bearings 47 are provided in two locations in the circumferential direction, one upstream and one downstream of the first opening 30 of the inner cylinder portion 26.

[0033] 4 and 5, the outer cylinder portion 41 has a second opening 46 that opens in the radial direction. The second opening 46 is disposed at approximately the same axial position as the first opening 30 of the inner cylinder portion 26. That is, by rotating the rotary head portion 40 relative to the head support portion 23, the second opening 46 of the outer cylinder portion 41 can overlap the first opening 30 of the inner cylinder portion 26. When the second opening 46 of the outer cylinder portion 41 overlaps the first opening 30 of the inner cylinder portion 26, a communication state (not shown) is established in which the first space 27 inside the inner cylinder portion 26 and the second space 44 outside the outer cylinder portion 41 communicate with each other. Furthermore, the second opening 46 of the outer cylinder 41 is positioned so as not to overlap with the first opening 30 of the inner cylinder 26, and the outer cylinder 41 closes the first opening 30 of the inner cylinder 26, thereby creating a closed state (see FIGS. 3 to 5) in which the first space 27 inside the inner cylinder 26 and the second space 44 outside the outer cylinder 41 are closed. In other words, the rotating head 40 can be switched between the closed state and the communicating state by moving relative to the head support 23.

[0034] As shown in Fig. 5, two second openings 46 of this embodiment are provided at positions facing each other across the rotation axis CL1 in a cross section perpendicular to the rotation axis CL1. As shown in Fig. 4, in this embodiment, the second openings 46 have a shape in which three circumferentially extending holes are arranged in parallel in the axial direction. The second openings 46 on both sides are preferably provided so as to be point symmetrical about the rotation axis CL1 in a cross section perpendicular to the rotation axis CL1. In this case, the central angle of the second openings 46 on both sides is preferably smaller than 90 degrees. The shape of the second openings 46 is not limited to the above.

[0035] This makes it possible to change between the open state and the closed state by rotating the rotary head portion 40 by 90 degrees relative to the head support portion 23. In this embodiment, the open state and the closed state can be changed by rotating the rotary head portion 40 in either circumferential direction.

[0036] As described above, in the communication state, a part or all of the second opening 46 of the outer tubular portion 41 overlaps with the first opening 30 of the inner tubular portion 26. On the other hand, as shown in FIGS. 3 to 5, in the closed state, a part or all of the second opening 46 of the outer tubular portion 41 overlaps with the watertight rubber 32 of the inner tubular portion 26. As a result, in the closed state, the watertight rubber 32 restricts the outflow of water from the second opening 46 of the outer tubular portion 41 to the second space 44 on the outside.

[0037] 4 and 5, the water spraying surface 43 constitutes the front surface of the rotary head 40 and covers the front surface of the casing 42, thereby also covering the front surface of the outer cylinder 41. A plurality of small water spraying holes are formed in the water spraying surface 43. The water spraying surface 43 has an inner water spraying area 48 located in the radial center and an annular outer water spraying area 49 arranged to surround the inner water spraying area 48.

[0038] The inner watering area 48 covers the front surface of the outer cylindrical portion 41 and is capable of spraying water from the first space 27. The outer watering area 49 covers the area of ​​the front surface of the casing 42 that is radially outward from the front surface of the outer cylindrical portion 41 and is capable of spraying water from the second space 44.

[0039] A rubber O-ring 50 is attached to the front end of the outer tubular portion 41 and abuts against the rear surface of the spray surface portion 43. The O-ring 50 restricts the flow of water from the first space 27 to the second space 44 between the tip of the outer tubular portion 41 and the rear surface of the spray surface portion 43.

[0040] The watering nozzle 10 of this embodiment is equipped with a biasing means that biases the outer tubular portion 41 forward (toward the rear surface of the watering surface 43). Specifically, in this embodiment, as shown in Figure 3, a coil spring 51 that can expand and contract back and forth is arranged in a contracted state as a biasing means between the closing portion 29 of the head support portion 23 and the flange portion 45 of the rotating head portion 40. This causes the O-ring 50 at the front end of the outer tubular portion 41 to be biased and pressed toward the rear surface of the watering surface 43.

[0041] When using the watering nozzle 10, the rotating head portion 40 is rotated relative to the head support portion 23 to select the closed state or the communicating state, and the operating portion 24 is operated to spray water.

[0042] When the closed state is selected, the outer cylinder 41 blocks the first opening 30 of the inner cylinder 26, so that water from the inlet 22a side flows into the first space 27 and is sprayed only from the inner sprinkler region 48 without moving to the second space 44. On the other hand, when the connected state is selected, the first space 27 inside the inner cylinder 26 and the second space 44 outside the outer cylinder 41 are connected, so that water from the inlet 22a side flows not only into the first space 27, but also from the first space 27 into the second space 44, and is sprayed from both the inner sprinkler region 48 and the outer sprinkler region 49.

[0043] In a sprinkling mode in which the closed state is selected and water is sprayed only from the inner sprinkling region 48, unlike when water is sprayed from both the inner sprinkling region 48 and the outer sprinkling region 49, the area of ​​the sprinkling region is small and water from the upstream flow path is guided straight forward through the inner cylindrical portion 26, allowing water to be sprayed over a small area with a relatively strong force. On the other hand, when the connected state is selected and water is sprayed from both the inner sprinkling region 48 and the outer sprinkling region 49, the area of ​​the sprinkling region is large and water from the upstream flow path passes through the first opening 30 and the second opening 46, allowing water to be sprayed over a wide area with a relatively gentle force.

[0044] In sprinkler nozzle 10 configured as described above, rotating head portion 40 can be moved relative to head support portion 23 to either a closed state in which outer tube portion 41 blocks first opening 30 of inner tube portion 26, or a communicating state in which second opening 46 of outer tube portion 41 overlaps first opening 30 of inner tube portion 26, providing communication between first space 27 and second space 44. In the closed state, water from inlet 22a is sprayed from inner sprinkler region 48 via first space 27, and in the communicating state, water from inlet 22a is sprayed from both inner sprinkler region 48 and outer sprinkler region 49 via first space 27 and second space 44. In this way, switching the sprinkler mode simply requires switching the overlap between the two openings (first opening 30 and second opening 46), thereby enabling switching the sprinkler mode with a simple configuration.

[0045] Therefore, according to this embodiment, it is possible to provide a watering nozzle 10 that is capable of switching the water sprinkling mode with a simple configuration.

[0046] Furthermore, the rotary head 40 can be rotatably supported by the head support 23 without moving axially, which allows for a simple configuration. For example, if the head were to be capable of both rotational and axial movement relative to the support, a screw structure or the like would be required at the connection between the head and support, but in this embodiment, since the head is immovable in the axial direction, a simple configuration can be achieved in which an annular groove or the like extending circumferentially is simply provided as the locking portion 25a.

[0047] Furthermore, the first opening 30 and the second opening 46 are provided at two positions facing each other across the rotation axis CL1 in a cross section perpendicular to the rotation axis CL1. This allows for easy switching between the closed state and the open state. For example, as described above, if the head requires a threaded structure that involves rotational and axial movement relative to the support, the head must be rotated multiple times relative to the support to switch the sprinkler mode. However, in this embodiment, the sprinkler mode can be easily switched by simply rotating the rotating head 40 90 degrees relative to the head support 23. Furthermore, in this embodiment, the rotating head 40 can be rotated in either circumferential direction relative to the head support 23, making it even easier to switch the sprinkler mode without worrying about the rotation direction.

[0048] Additionally, head support portion 23 has third opening 35 in internal extension tube portion 36 that defines the flow path, and has sponge member (elastic member) 28 in third space 34 outside third opening 35. Therefore, for example, in cold regions, when water accumulated in the flow path inside watering nozzle 10 begins to freeze, the expanding ice contracts sponge member 28 from the flow path via third opening 35. In this way, sponge member 28 absorbs the expansion of the ice, thereby preventing damage (freeze cracking) of watering nozzle 10 caused by the expansion of the ice.

[0049] Although the present invention has been described above based on the above embodiment, the present invention is not limited to the content of the above embodiment and can be modified as appropriate without departing from the scope of the present invention. In other words, other embodiments, examples, operational techniques, etc. that are made by those skilled in the art based on this embodiment are all included in the scope of the present invention. [Explanation of symbols]

[0050] 10: Watering nozzle 22a: Inlet 23: Head support part (support part) 26: Inner cylinder 27: 1st space 28: Sponge material (elastic material) 30: First opening 34: Third space 35: Third opening 40: Rotating head part (head part) 41: Outer cylinder 43: Sprinkling surface part 44:Second space 46: Second opening 48: Inner watering area 49:Outer watering area

Claims

1. A sprinkler nozzle capable of sprinkling water flowing in from an inlet, a support part having an inner cylindrical part defining a first space therein that is continuous with a water flow path from the inlet side; a head portion having an outer tubular portion that defines the radially inner side of a second space that is arranged to surround the first space, and a water spraying surface portion that can spray water, and that is movably supported on the support portion; the inner cylindrical portion has a first opening that opens in a radial direction, the outer cylindrical portion has a second opening that opens in a radial direction, is in close proximity to or contacts the inner cylindrical portion from the outside in the radial direction, and is movable relative to the inner cylindrical portion by movement of the head portion relative to the support portion, The water spraying surface portion has an inner water spraying area capable of spraying water from the first space, and an annular outer water spraying area arranged to surround the inner water spraying area and capable of spraying water from the second space, the head portion can be moved relative to the support portion to a closed state in which the outer cylindrical portion closes the first opening of the inner cylindrical portion, and a communicating state in which the second opening of the outer cylindrical portion overlaps the first opening of the inner cylindrical portion, thereby communicating the first space with the second space, In the closed state, water from the inlet side is sprayed from the inner spray area through the first space, In the communication state, water from the inlet side is sprayed from both the inner spray area and the outer spray area through the first space and the second space. A watering nozzle characterized by:

2. the head portion is rotatably supported by the support portion and immovable in the axial direction; The outer cylindrical portion is rotatable relative to the inner cylindrical portion by rotation of the head portion relative to the support portion.

2. The watering nozzle according to claim 1.

3. two first openings of the inner cylinder portion are provided at positions facing each other across the rotation axis of the head portion in a cross section in a direction perpendicular to the rotation axis of the head portion, The second opening of the outer cylinder portion is provided in two positions facing each other across the rotation axis in a cross section in a direction perpendicular to the rotation axis.

3. The watering nozzle according to claim 2.

4. The support portion has a third opening disposed in the flow path closer to the inlet than the outer cylindrical portion, a third space disposed outside the third opening, and an elastic member disposed in the third space.

3. The watering nozzle according to claim 1 or claim 2.

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