TW201622824A - Spray head and spraying apparatus - Google Patents

Abstract

The invention relates to a spray head for a spraying apparatus (100), the spray head comprising: a spray head base body (2) including a spray head fluid channel (3); a plurality of nozzles (4), each nozzle (4) comprising a nozzle fluid channel (4.1), wherein said nozzle fluid channels (4.1) being coupled with the spray head fluid channel (3) and the free ends of the nozzle fluid channels (4.1) forming liquid outlets (5) of the spray head (1), wherein the nozzles (4) are circumferentially arranged around a central axis (CA) of the spray head (1), wherein each nozzle (4) comprise a liquid guiding portion (4.2), said liquid guiding portion (4.2) including said nozzle fluid channel (4.1) and being made of a flexible material, an adjustment unit (6) comprising a adjustment entity (7), said adjustment entity (7) being movably mounted at the spray head base body (2), the adjustment entity (7) comprising a plurality of apertures (7.1) for providing pas- sages for said flexible liquid guiding portions (4.2), wherein the spray head (1) is adapted to change the spraying pattern by moving the adjustment entity (7) with respect to the spray head base body (2), said movement causing a bending of the flexible liquid guiding portions (4.2) of said nozzles (4).

Description

Sprinkler head and sprinkler

This invention relates to the field of general sprinkler heads. More specifically, the present invention relates to a sprinkler head adapted to vary the size of a sprinkling area.

Sprinklers, especially sprinklers for watering flowers or plants, are well known in the art. The sprinkler device includes a housing having a liquid inlet, at least one liquid passage, and a liquid outlet for directing liquid through the sprinkler for supplying liquid, particularly water, to flowers or plants . The sprinkler can include a valve for allowing/disabling the flow of liquid through the liquid passage. In addition, shower sprinkler type sprinklers are known to include sprinkler heads having a plurality of liquid outlets and include elements for varying the size of the sprinkling area.

It is an object of embodiments of the present invention to provide a technically simple sprinkler head that can be manufactured in a cost effective manner and that provides the possibility of varying the size of the sprinkling area. This object is solved by the technical features of the individual items. The preferred embodiment is given by the accompanying items. Embodiments of the present invention can be freely combined with each other if not explicitly indicated.

In one aspect, the invention relates to a sprinkler head for a sprinkler. The sprinkler head includes a sprinkler head body, and the sprinkler head body includes a sprinkler head fluid passage.

The sprinkler head further includes a plurality of nozzles disposed on the sprinkler body. Each nozzle includes a nozzle fluid passage. The nozzle fluid passages are coupled to the sprinkler head fluid passages and the free ends of the nozzle fluid passages form a liquid outlet of the sprinkler head. The nozzles are circumferentially disposed about a central axis of the sprinkler head. In other words, the nozzles are distributed on the front side of the sprinkler head. Preferably, the nozzles are disposed in a plurality of concentric nozzle rings. Each nozzle includes a liquid guide that includes the nozzle fluid passage and is made of a resilient, flexible material to make. The material can be, for example, an elastomer.

The sprinkler head further includes an adjustment unit including an adjustment body movably mounted to the sprinkler head body. The adjustment body includes a plurality of through holes for providing the liquid guides for the passage of the passage. The sprinkler head is adapted to change a sprinkling mode by moving the adjustment body relative to the sprinkler body, the movement causing the resilient liquid guiding portions of the nozzles to flex.

Thus, a sprinkler head that is technically simple and cost-effective, including an adjustment mechanism for changing the size of the sprinkling area, is obtained.

According to an embodiment, the adjustment body is adapted to vary the radial distance of the liquid outlet relative to the central axis of the sprinkler head. In other words, by moving the adjustment body, the liquid guiding portions are bent to guide the liquid ejection ports of the respective nozzles disposed in a specific direction, wherein the radial distance of the free ends of the liquid guiding portions is relative to the central axis of the sprinkler head And change. Thus, the size of the sprinkling area is significantly changed.

According to an embodiment, the adjustment body is rotatably disposed on the sprinkler body. The adjustment body can be rotated about a rotation axis, which can be the central axis of the sprinkler head. The adjustment body may include guiding means for converting the rotational movement of the adjustment body into a radial movement of the liquid outlet (relative to the central axis of the sprinkler head). The adjustment body can be a circular plate. Thereby, the simple design of the sprinkler head can be achieved.

According to an embodiment, the liquid guiding portions are disposed in parallel with each other in a non-bending state of the liquid guiding portions. Preferably, the liquid guiding portions of all the nozzles may be disposed in parallel with each other. For example, in this non-bent state, a minimum sprinkling area size is obtained because the liquid outlets of the nozzles are positioned adjacent the central axis of the sprinkler head.

According to an embodiment, the adjustment body includes a plurality of elliptical through holes, wherein a distance between a first end of the elliptical through hole and a rotating axis of the adjusting body is greater than a second end of the elliptical through hole and the rotation The distance between the axes. Due to the change in the distance, the liquid guiding portions are deformed when the adjusting body and the liquid outlets provided at the free ends of the nozzles are moved radially with respect to the central axis of the sprinkler head.

According to an embodiment, the elliptical through holes have a curved shape. Thereby, the liquid guiding portions which are smoothly curved are obtained. According to other embodiments, the elliptical through holes have A straight line shape.

According to an embodiment, the longitudinal axes of the elliptical through holes are inclined with respect to a radial direction, which refers to the axis of rotation of the adjustment body. The angle of inclination may be approximately 90 degrees, for example, between 70 degrees and 89 degrees, wherein the angle of inclination is outwardly open (the direction opposite the central axis or axis of rotation of the sprinkler head).

According to an embodiment, the adjustment body is adapted to bend the liquid guiding portions in a circumferential direction with respect to the rotation axis of the adjustment body. In other words, when the adjustment body is rotated about its rotation axis, the liquid guiding portions of the nozzles are bent in the rotational direction. This bending is achieved by the edge of the through hole provided in the adjustment body. When the adjustment body is rotated, the edge abuts the liquid guiding portions of the nozzles and bends the liquid guiding portions to increase/decrease the watering area.

According to an embodiment, the adjustment body is slidably mounted within the sprinkler head, wherein the sliding direction is parallel or substantially parallel to the central axis of the sprinkler head. The adjustment body can include nozzle passages that apply a radially inward or radially outwardly directed force to the liquid guides when the adjustment body is slid.

According to an embodiment, the liquid lead body portions of the nozzles are inclined with respect to the sliding direction. This tilt refers to a non-curved liquid guide (no external force is applied to the liquid guides). For example, the nozzles are inclined by 10 to 30 degrees, preferably 15 to 25 degrees, and most preferably 16 degrees, 17 degrees, 18 degrees, 19 degrees, 20 degrees, 21 degrees, 22 degrees, 23 degrees. Or 24 degrees. By sliding the adjustment body, an external force applied to the liquid guiding portions and the inclination angle is reduced, thereby reducing the size of the watering area.

According to an embodiment, the adjustment body comprises a plurality of through holes, the edges of the through holes being tightly fitted to the liquid guiding portions. The through holes have the nozzle passages mentioned above. The tight fitting system as used in the present invention means that the size of the through hole is adapted to the size of the liquid guiding portion so that the adjusting body can be easily moved relative to the liquid guiding portions, but at the edge of the through hole and the liquid guiding portion There is only a small gap between them, and when the adjustment body is moved, the deformation of the liquid guiding portion mentioned above is achieved.

According to an embodiment, the adjusting unit comprises an adjusting portion rotatably mounted on the sprinkling head, wherein the adjusting portion is coupled to the adjusting body such that the adjusting body is offset when the adjusting portion is rotated. The adjustment portion can be an adjustment ring. The adjusting portion may include an internal thread coupled to a lateral protrusion or edge of the adjusting body to convert the rotational movement of the adjusting portion into a lateral movement (offset) of the adjusting body.

According to an embodiment, a guiding body is provided which is arranged between the adjusting body and the liquid outlets of the nozzles, the guiding body being adapted to provide a side guide for the liquid guiding portions. Thereby the enhancement and guided movement of the liquid guiding portions is obtained.

According to an embodiment, the guiding body is fixedly arranged with respect to the sprinkler body. In other words, the guide body cannot move when the adjustment body is rotated or slid. Thereby, the liquid guiding portions of the nozzles are guided or fixed at both ends and deformed by the adjusting body provided between those ends. Thereby a well defined movement of the liquid guiding portions is achieved.

According to an embodiment, the guiding body comprises an elliptical through hole, the longitudinal axis of the elliptical through hole being arranged radially with respect to a central axis of the sprinkler head. Thereby, the liquid guiding portions are movable in the radial direction and can be guided to the radial direction in the vertical direction.

According to an embodiment, the adjustment body is adapted to be changed such that only some of the nozzles are bent by the adjustment body, otherwise the bending angles are different. Preferably, the nozzles disposed opposite each other (point symmetrical with respect to the central axis) are bent by the same bending angle. Thereby, a sprinkling mode having an elliptical cross section is obtained.

According to another aspect, the present invention is directed to a sprinkler apparatus. The sprinkler device comprises a sprinkler head according to any of the above mentioned embodiments.

The terms "substantially" or "approximately" as used in the present invention are meant to mean ranging from an exact value to a positive/negative 10% deviation, preferably within a positive/negative 5% deviation range and/or for function only. Insignificant deviation in form change.

1‧‧‧Sprinkler

2‧‧‧ sprinkler head

2.1‧‧‧Connecting Department

3‧‧‧ sprinkler head fluid passage

4‧‧‧ nozzle

4.1‧‧‧Nozzle fluid passage

4.2‧‧‧Liquid guiding department

4.3‧‧‧Nozzle base

4.4‧‧‧Support Department

5‧‧‧Liquid exports

6‧‧‧Adjustment unit

7‧‧‧Adjustment

7.1‧‧‧through hole

8‧‧‧Adjustment Department

9‧‧‧Guidance

9.1‧‧‧through hole

10‧‧‧ central bearing

10.1‧‧‧Seal ring

11‧‧‧Spring hook

12‧‧‧ Nuts

13‧‧‧Connecting parts

100‧‧‧ sprinkler

110‧‧‧shell

120‧‧‧ grip

130‧‧‧Starting device

CA‧‧‧ central axis

D1, d2‧‧‧ distance

FD‧‧‧ fluid flow direction

RA‧‧‧Rotary axis

RD‧‧‧radial distance

SD‧‧‧ sliding direction

The various aspects of the present invention, including its features and advantages, will be readily understood from the following description of the embodiments and drawings in which: FIG. 1 is an exemplary perspective view of the sprinkler head according to the first embodiment; An exemplary front view showing a sprinkler head according to the first embodiment; a third view showing an exemplary front view of the sprinkler head according to the first embodiment when moving the guide body; and a fourth view showing the sprinkler head according to the first embodiment a cross-sectional view having a non-curved liquid guiding portion; Fig. 5 is a cross-sectional view showing the sprinkler head according to the first embodiment, having a liquid guiding portion that is outwardly curved; 6 is a perspective view showing an example of a sprinkler head according to the first embodiment; FIG. 7 is a cross-sectional view showing the sprinkler head according to the second embodiment, having a non-curved liquid guiding portion; and FIG. 8 is a view showing a second embodiment according to the second embodiment. A cross-sectional view of a sprinkler head having an inwardly curved liquid guiding portion; a ninth drawing showing a cross-sectional view of the sprinkler head according to the third embodiment, having a non-curved liquid guiding portion; and a tenth drawing showing a third Another cross-sectional view of the sprinkler head of the embodiment having a non-curved liquid guiding portion for providing a liquid spout; and FIG. 11 is another cross-sectional view showing the sprinkling head according to the third embodiment, having a liquid which is disposed to cross each other a curved liquid guiding portion of the spout; Fig. 12 is a front view showing an example of a sprinkler head according to the third embodiment, having a non-curved liquid guiding portion; and Fig. 13 is a view showing an exemplary front view of the sprinkling head according to the third embodiment , with a curved liquid guide; and Figure 14 shows an exemplary side view of the sprinkler.

The invention will be described more fully hereinafter with reference to the accompanying drawings However, the invention should not be construed as being limited to the embodiments illustrated herein. Where appropriate, the same reference numbers are used to indicate similar elements, parts, articles or functions.

Figs. 1 to 5 show the sprinkler head 1 according to the first embodiment. The sprinkler head 1 includes a sprinkler head body 2 that includes a connection portion 2.1 for connecting the sprinkler head 1 to a sprinkler base unit. Alternatively, the sprinkler head 1 can be directly connected to a water pipe through the connection portion 2.1. The sprinkler head body 2 includes a sprinkler head fluid passage 3 through which a general liquid such as water flows when the sprinkler head 1 is used.

A plurality of nozzles 4 are provided on the sprinkler head body 2 on the opposite side of the connecting portion 2.1. Each nozzle 4 includes a nozzle inlet fluidly coupled to the sprinkler head fluid passage 3 and a nozzle outlet that forms one of a plurality of liquid outlets 5 of the sprinkler head 1. In other words, the nozzle includes an elliptical nozzle fluid passage 4.1 formed in the nozzle 4, the nozzle fluid passage 4.1 A nozzle inlet and a nozzle outlet are provided from the end, wherein the nozzle fluid passage 4.1 is fluidly coupled to the sprinkler head fluid passage 3 for providing a flow of water through the nozzle 4.

Each of the nozzles 4 includes a nozzle base 4.3 coupled to the sprinkler body 2 by a nozzle base 4.3. The liquid guiding portion 4.2 can include a tubular shape. At least the liquid guiding portion 4.2 is made of a flexible, resilient material, such as an elastomer. Preferably, the nozzle 4 is integrally formed and made of a flexible, resilient material (integral nozzle). Furthermore, a plurality of nozzles 4 (full set of nozzles) or all of the nozzles 4 of the sprinkler head 1 can be integrally formed by the nozzle body. The liquid guiding portion 4.2 of the nozzle 4 protrudes from the front side of the sprinkler head 1. Due to the elastic, flexible material of the liquid guiding portion 4.2 of the nozzle 4, the direction of the water flow can be changed by bending the liquid guiding portion 4.2 of the nozzle 4.

The nozzle 4 is circumferentially disposed around the central axis CA of the sprinkler head 1. According to the current embodiment, the nozzle 4 is disposed in an annular region. For example, the nozzle 4 is disposed in the sprinkler body 2 in a plurality of concentric rings, for example, the nozzle rings include different sizes (different ring diameters). Preferably, the shape of the front side portion of the sprinkler head 1 includes a ring shape or a substantially ring shape.

In order to vary the size of the sprinkling area so that the irrigated material (for example, flowers or plants) can be irrigated with at least soft water and hard water, the sprinkler head 1 comprises an adjustment unit 6 adapted to bend the liquid guiding portion 4.2 in a specific direction. Change the watering area. It is worth mentioning that due to the longitudinal shape of the liquid guiding portion 4.2 of the nozzle 4, the watering area can be changed only by changing the alignment direction of the liquid guiding portion 4.2.

The adjustment unit 6 comprises an adjustment body 7 adapted to interact with the liquid guiding portion 4.2 of the nozzle 4 such that the alignment direction of the liquid guiding portion 4.2 is changed. In more detail, the adjustment body 7 includes a plurality of through holes 7.1. The through holes 7.1 are provided in the adjustment body 7 such that the liquid guiding portion of each nozzle is accommodated in one through hole 7.1. In other words, the adjustment body is placed on the plurality of liquid guiding portions 4.2 such that the liquid guiding portions 4.2 pass through the adjustment body 7, and the through holes 7.1 provide passages to the liquid guiding portions 4.2. The adjustment body 7 may include a plate shape having a planar shape.

In order to achieve the bending of the liquid guiding portion 4.2 of the nozzle 4, the adjusting body 7 is movably disposed on the sprinkler head 1. Preferably, by moving the adjustment body 7, the alignment directions of all the liquid guiding portions 4.2 are simultaneously changed, thereby changing the watering area affected by the sprinkler head 1. The sprinkling area can be varied by changing the radial distance RD of the liquid outlet 5 relative to the central axis CA of the sprinkler head. In other words, by moving the adjustment body 7, the liquid guiding portion 4.2 is bent, and thus, the self of the liquid guiding portion 4.2 The end moves from a position close to the central axis CA to an external position or from an external position to a position close to the central axis CA.

According to the present embodiment, the adjustment body 7 is rotatably disposed in the sprinkler head 1 to change the size of the sprinkling area. As shown in Fig. 3, the adjustment body 7 includes a plurality of elliptical through holes 7.1. The narrow side of the elliptical through hole 7.1 is adapted to the outer dimensions of the liquid guiding portion 4.2 for bending the liquid guiding portion 4.2 of the nozzle 4 by the through hole edges.

According to the present embodiment, the longitudinal axis of the elliptical through hole 7.1 is inclined with respect to a radial direction which is directed to the central axis of the sprinkler head 1. The liquid guiding portion 4.2 is bent by the edge of the elliptical through hole 7.1 by the inclined arrangement of the elliptical through hole 7.1. For example, the longitudinal axis of the elliptical through hole 7.1 is inclined between 70 degrees and 90 degrees with respect to the radial direction (toward the central axis CA), preferably 70 degrees, 71 degrees, 72 degrees, 73 degrees, 74 degrees, 75 degrees, 76 degrees, 77 degrees, 78 degrees, 79 degrees, 80 degrees, 81 degrees, 82 degrees, 83 degrees, 84 degrees, 85 degrees, 86 degrees, 87 degrees, 88 degrees or 89 degrees, wherein The angle is open in the opposite direction of the central axis. The through hole 7.1 may include a curved shape. In other words, the plurality of elliptical through holes 7.1 can form holes including paddle wheels.

In order to rotate the adjustment body 7 provided inside the adjustment unit 6, the adjustment unit 6 further includes an adjustment portion 8. The adjustment portion 8 can be an adjustment ring that is circumferentially disposed on the sprinkler head 1. The adjustment portion 8 is rotatably mounted to the sprinkler head 1 and coupled to the adjustment body 7 for rotating the adjustment body 7.

In order to avoid undesired deformation of the liquid guiding portion 4.2 in the transverse direction with respect to the longitudinal axis of the through hole 7.1. The adjustment unit 6 further includes a guiding body 9. The guide body 9 may form an outer body of the front side portion of the sprinkler head 1, for example, may be disposed near the liquid outlet 5 of the sprinkler head 1, and the adjustment body 7 may be disposed between the guide body 9 and the nozzle base portion 4.3. The guiding body 9 may include a plurality of elliptical through holes 9.1. The elliptical through holes 9.1 may be disposed radially or substantially radially on the guide body 9, for example, the longitudinal axes of the through holes 9.1 are radially disposed with respect to the central axis CA of the sprinkler head. Like the adjustment body 7, these elliptical through holes 9.1 are provided in the guide body 9, so that the liquid guiding portion 4.2 of each nozzle 4 is accommodated in an elliptical through hole 9.1. In other words, the guiding body 9 is placed on the plurality of liquid guiding portions 4.2 such that the liquid guiding portions 4.2 pass through the guiding body 9 and the through holes 9.1 provide passages for the liquid guiding portion 4.2. The guiding body 9 may also include a plate shape or a planar shape.

Preferably, the guide body 9 is elastically arranged on the sprinkler head 1 , ie there is a relative movement between the movable, in particular rotatable adjustment body 7 and the fixed guide body 9 . Due to the inclined arrangement of the elliptical through hole 7.1 with respect to the radial arrangement of the elliptical through hole 9.1 of the guide body 9 and the adjustment body 7 In contrast to the arrangement of the guiding bodies 9 in close proximity to each other, each liquid guiding portion 4.2 provides a well-defined passage through the adjusting unit 6, so that a defined guidance of the liquid guiding portion 4.2 is achieved.

6 to 8 show a second embodiment of the sprinkler head 1, as in the first embodiment, the sprinkler head includes a sprinkler head body 2 including a connecting portion 2.1 for connecting the sprinkler head 1 with a sprinkler Device base unit or a water pipe. With respect to the first embodiment, the main difference of the sprinkler head 1 according to the second embodiment is the implementation of the adjustment unit 6. Therefore, according to the second embodiment, the adjustment unit 6 is described in more detail below. In addition to this, the description of the technical features of the first embodiment is also applied to the second embodiment.

The main difference between the first embodiment and the second embodiment is the arrangement of the nozzles 4 of the sprinkler head body 2. In a non-bent state, the longitudinal axis of the nozzle 4 is inclined with respect to the central axis of the sprinkler head 1. For example, the support portion 4.4 of the nozzle 4 includes a frustoconical shape such that all of the nozzles 4 are inclined at the same angle with respect to the central axis CA in the non-bent state (the external force is not applied by the adjustment body 7).

According to the second embodiment, the adjustment body 7 is slidably disposed in the sprinkler head 1 for changing the size of the sprinkling area. The adjustment body 7 contained in the sprinkler head 1 includes a plurality of through holes 7.1, wherein the through holes are sized to fit the outer dimensions of the liquid guiding portion 4.2 of the nozzle 4 for the liquid guiding portions 4.2 to pass through the through hole edges And bent. This bending is achieved by the sliding adjustment body 7 in the sliding direction SD which is parallel to the central axis CA of the sprinkler head.

Since the nozzle 4 is disposed obliquely with respect to the central axis or the sliding axis, the distance between the lower portion of the liquid guiding portion 4.2 (for example, a portion close to the nozzle base portion 4.3) and the central axis CA is different, preferably smaller than the liquid guiding portion 4.2. The distance between the upper portion (for example, the portion near the liquid outlet 5) and the central axis CA. Therefore, by tilting the adjustment bodies 7 in a direction parallel to the central axis CA, these nozzles are deformed or bent by adjusting the edges of the through holes 7.1 of the body 7.

Figures 7 and 8 illustrate the adjustment body 7 at two different positions, i.e., a retracted position (the adjustment body 7 is located near the support portion 4.4, Fig. 7) and a front pressing position (the adjustment body 7 is located near the liquid). Exit 5, Figure 8). By sliding the adjustment body 7 from the retracted position to the front pressing position, the liquid guiding portion 4.2 is deformed, thereby pushing the liquid outlet 5 closer to the central axis CA. According to another configuration, the liquid guiding portion 4.2 is deformable such that the liquid outlet 5 is away from the central axis CA. Thereby changing the sprinkling mode of the sprinkler head 1.

In order to offset the adjustment body 7 provided inside the adjustment unit 6, the adjustment unit 6 further An adjustment portion 8 is included. The adjustment portion 8 can be an adjustment ring that is circumferentially disposed on the sprinkler head 1. The adjustment portion 8 is rotatably mounted on the sprinkler head 1 and coupled to the adjustment body 7 for biasing the adjustment body 7. In more detail, the adjustment portion 8 may include an internal thread coupled to the lateral protrusion of the one or more adjustment bodies 7 for converting the rotational movement of the adjustment portion 8 into the lateral movement (offset) of the adjustment body 7.

In order to avoid undesired deformation of the liquid guiding portion 4.2, the adjusting unit 6 may further comprise a guiding body 9. The guide body 9 may be an external body from the front side of the sprinkler head 1, for example, may be disposed near the liquid outlet 5 of the sprinkler head 1, and the adjustment body 7 may be disposed between the guide body 9 and the nozzle base 4.3. The guiding body 9 may include a plurality of elliptical through holes 9.1. The elliptical through holes 9.1 may be disposed radially or substantially radially on the guide body 9, that is, the longitudinal axes of the elliptical through holes 9.1 are radially disposed with respect to the central axis CA of the sprinkler head. Like the adjustment body 7, these through holes 9.1 are provided in the guide body 9, so that the liquid guide portion 4.2 of each nozzle 4 is housed in one through hole 9.1. In other words, the guiding body 9 is placed on the plurality of liquid guiding portions 4.2 such that the liquid guiding portion 4.2 passes through the guiding body 9 and the through hole 9.1 provides a passage for the liquid guiding portion 4.2. The guiding body 9 may also include a plate shape or a planar shape.

Preferably, the guide body 9 is fixedly arranged on the sprinkler head 1 , ie there is a relative movement between the movable, in particular rotatable adjustment body 7 and the fixed guide body 9 .

Figures 9 through 13 show a further embodiment of the sprinkler head 1. Hereinafter, the description of the further embodiments with respect to the differences of the aforementioned embodiments will be made. In addition to these, these features of the aforementioned embodiments are incorporated by reference.

As with the above embodiment, the sprinkler head 1 includes a sprinkler head body 2 that includes a sprinkler head fluid passage 3 and a nozzle body that includes a plurality of nozzles 4 of resilient material.

In contrast to the previous embodiments, the sprinkler head 1 preferably does not include any guide body 9. Therefore, according to the present embodiment, the adjustment body 7 is also provided on the cover plate on the front side portion of the sprinkler head 1. The adjustment body 7 includes a plurality of through holes 7.1. These through holes 7.1 are provided in the adjustment body 7 such that the liquid guiding portion 4.2 of each nozzle 4 is housed in one through hole 7.1. In other words, the adjustment body 7 is placed on the plurality of liquid guides 4.2 such that the liquid guides 4.2 pass through the adjustment body 7 and the through holes 7.1 provide a passage for the liquid guides 4.2. Preferably, the liquid guiding portion 4.2 in the through hole 7.1 is guided by force to obtain a repeatable watering mode. Furthermore, since there is a minimum gap between the liquid guiding portion 4.2 and the edge of the through hole 7.1, the penetration of sand and dust can also be minimized.

As shown in Fig. 9, the adjustment body 7 is rotatably mounted to the sprinkler head body 2 by a central bearing 10, that is, the adjustment body 7 is rotatable about the central axis of the sprinkler head 1, wherein the rotation axis RA coincides with the central axis . The sealing ring 10.1 can be arranged in the region of the central bearing 10. The seal ring 10.1 can provide a frictional force between the rotatable adjustment body 7 and a fixedly disposed portion of the connector 13 forming the central bearing 10 to avoid undesired movement of the adjustment body 7. According to other embodiments, the friction between the central bearing 10 and the adjustment body 7 can be obtained by other friction force generating means, for example, by means of a clamping device, a clamping rib or an adjustment body 7 and the central bearing 10 Connected components.

Preferably, the adjustment body 7 is mounted to the sprinkler body 2 by a direct snap-on mechanism. The adjustment body 7 may include at least one pair of spring hooks 11 extending from the bottom of the adjustment body 7, that is, including a through hole 7.1 on a side opposite to the plate portion. The spring hook 11 interacts with a slot or nut 11 provided in the sprinkler body 2 such that the adjustment body 7 is coupled to the sprinkler body 2 by the spring hook 11 engaging the nut 12.

The nut 12 may be disposed in the sprinkler body 2 or in the connecting member 13, and the connecting member 13 is disposed between the adjusting body 7 and the sprinkler body 2. For example, the connector 13 can be screwed to the sprinkler body 2. The connector 13 can have an annular shape and can be used to secure the nozzle 4, particularly a nozzle body (nozzle pad) comprising a plurality of nozzles.

Preferably, the card slot or nut 12 includes a length (in the circumferential direction) that is greater than the width of the spring hook 11. Thereby, the adjustment body 7 is rotatable about the rotation axis RA, wherein the rotation angle is limited by the edge of the card slot or the nut 12. In other words, the edge of the card slot or nut 12 forms a stop that interacts with the spring hook 11 such that the angle of rotation of the spring hook 11 is limited to a certain angle. The angle may range between 5 and 20 degrees, preferably between 10 and 15 degrees, especially 11 degrees, 12 degrees, 13 degrees or 14 degrees.

FIGS. 10 and 12 relate to the rotational position of the adjustment body 7, in which the liquid guiding portion 4.2 of the nozzle 4 is not bent, for example, the adjustment body 7 does not apply a force to the nozzle 4. Therefore, the liquid guiding portions 4.2 of the nozzles 4 are parallel to each other and parallel to the central axis CA.

11 and 13 show the sprinkler head 1 and the adjustment body 7 in a rotational position in which the nozzle 4 is bent by the adjustment body 7. The angle of inclination of the nozzle 4 can be as high as 45 degrees. Depending on the position of a certain nozzle 4, the degree of bending is different, for example, the inner nozzle 4 is inclined or curved a smaller angle than the outer nozzle 4. In other words, due to the different distances from the nozzle 4 to the axis of rotation RA, The angle of inclination is different. Thereby, the liquid nozzles provided by the nozzles 4 are staggered to produce a uniform watering pattern and/or a uniform distribution of liquid nozzles. The diameter of the sprinkling area can be in the range between 10 cm and 100 cm (measured from a distance of 1 m from the free end of the nozzle 4).

Figure 14 shows a hand held sprinkler 100 according to an embodiment, which may be a hand held device, such as a sprinkler, for supplying liquid, especially water to a watered object, for example , flowers or plants. The sprinkler device 100 includes a housing 110 having a grip 120 for holding the sprinkler device 100. The sprinkler device 100 can further include an activation device 130, such as a button, coupled to a valve device (not shown) for allowing/disabling or controlling the flow of liquid through the sprinkler device 100. The sprinkler device 100 can include a sprinkler head, one of which is used to bring out the same water flow (e.g., a small and large sprinkling area) for different sprinkling areas in accordance with the above-described embodiments. It is worth mentioning that the sprinkler head 1 can be adapted to provide a stepless adaptation of a sprinkling area by means of the stepless movement (rotation, sliding) of the adjustment body 7.

Alternatively, the hand-held sprinkler device 100 can be provided by a rod of a certain distance on the ground, wherein the liquid is sprayed upwards. Due to the sprinkler adjustment mechanism, the diameter of the sprinkling area can be varied continuously between 0.2 and 3 meters.

It should be noted that the embodiments and the drawings are merely illustrative of the principles of the proposed method and system. Various arrangements may be implemented to embody the principles of the invention, although not explicitly described or illustrated.

1‧‧‧Sprinkler

2‧‧‧ sprinkler head

2.1‧‧‧Connecting Department

5‧‧‧Liquid exports

6‧‧‧Adjustment unit

8‧‧‧Adjustment Department

9‧‧‧Guidance

9.1‧‧‧through hole

CA‧‧‧ central axis

Claims (15)

A sprinkler head for a sprinkler device (100), the sprinkler head comprising: a sprinkler head body (2) comprising a sprinkler head fluid passage (3); a plurality of nozzles (4), each nozzle (4) comprising a nozzle fluid passage (4.1), wherein the nozzle fluid passages (4.1) are coupled to the sprinkler head fluid passage (3) and the free ends of the nozzle fluid passages (4.1) form a liquid outlet of the sprinkler head (1) (5) wherein the nozzles (4) are circumferentially disposed around a central axis (CA) of the sprinkler head (1), wherein each nozzle (4) includes a liquid guiding portion (4.2), the liquid guiding portion (4.2) Included in the nozzle fluid passage (4.1) and made of a resilient material; and an adjustment unit (6) comprising an adjustment body (7) movably mounted to the sprinkler body (2) The adjustment body (7) comprises a plurality of through holes (7.1) for providing the liquid guiding portions (4.2) for the passage, wherein the sprinkler head (1) is adapted to be opposed to the sprinkler body (2) Moving the adjustment body (7) to change the sprinkling mode, the movement causing the elastic liquid guiding portions (4.2) of the nozzles (4) to bend. A sprinkler head for a sprinkler device according to claim 1, wherein the adjustment body (7) is adapted to change a radial distance of the liquid outlet (5) relative to the sprinkler head axis (CA) ( RD). A sprinkler head for a sprinkler according to the invention of claim 1 or 2, wherein the adjustment body (7) is rotatably disposed on the sprinkler body (2). The sprinkler head for a sprinkler according to any one of the preceding claims, wherein the liquid guiding portion (in a non-bending state of the liquid guiding portion (4.2) 4.2) Set in parallel with each other. A sprinkler head for a sprinkler according to the invention of claim 3, wherein the adjusting body (7) comprises a plurality of elliptical through holes (7.1), wherein one of the elliptical through holes (7.1) The first distance (d1) between the first end and the rotating shaft (RA) of the adjusting body (7) is greater than the second distance between the second end of the elliptical through hole (7.1) and the rotating shaft (d2). A sprinkler head for a sprinkler according to claim 5, wherein the elliptical through holes (7.1) have a curved shape. The sprinkler head for a sprinkler according to claim 5, wherein the longitudinal axis of the elliptical through hole (7.1) is inclined with respect to a radial direction, the radial direction being The rotation axis (RA) of the adjustment body (7). A sprinkler head for a sprinkler according to the invention of claim 3, wherein the adjustment body (7) is adapted to be at a circumference of the rotation axis (RA) with respect to the adjustment body (7) The liquid guiding portions (4.2) are bent in the direction. A sprinkler head for a sprinkler according to the invention of claim 1 or 2, wherein the adjusting body (7) is slidably mounted in the sprinkler head (1), wherein the sliding direction (SD) is Parallel or substantially parallel to the fluid flow direction (FD). A sprinkler head for a sprinkler according to claim 9 wherein the liquid guiding portions (4.2) of the nozzles (4) are inclined with respect to the sliding direction (SD). A sprinkler head for a sprinkler according to claim 9 or 10, wherein the adjusting body (7) comprises a plurality of through holes (7.1), the edges of the through holes (7.1) being tightly fitted The liquid guiding portion (4.2). A sprinkler head for a sprinkler according to any one of the preceding claims, wherein the adjusting unit (6) comprises an adjusting portion (8), the adjusting portion (8) being rotatable The adjusting head (8) is coupled to the adjusting body (7) such that the adjusting body (7) is offset when the adjusting portion (8) is rotated. A sprinkler head for a sprinkler according to any one of claims 5 to 7 and 9 to 12, wherein a guide body (9) is provided, the guide body (9) Between the adjustment body (7) and the liquid outlets (5) of the nozzles (4), the guide body (9) is preferably fixedly disposed relative to the sprinkler body (2). A sprinkler head for a sprinkler according to claim 13 wherein the guide body (9) comprises an elliptical through hole (9.1), the longitudinal axis of the elliptical through hole (9.1) being relative to the The central axis (CA) of the sprinkler head (1) is radially arranged. A sprinkler apparatus, comprising the sprinkler head according to any one of claims 1 to 14.