TWI670119B - Spray head and spraying apparatus - Google Patents

Abstract

A sprinkler head of a sprinkler device (100) includes a sprinkler body (2) including a sprinkler fluid channel (3); a plurality of nozzles (4), each nozzle (4) including a nozzle fluid channel (4.1), The nozzle fluid channels (4.1) are coupled to the sprinkler fluid channel (3) and the free ends of the nozzle fluid channels (4.1) form a liquid outlet (5) of the sprinkler head (1), where the nozzles (4) Around the central axis (CA) of the sprinkler head (1), each nozzle (4) includes a liquid guide (4.2) including a nozzle fluid passage (4.1) and made of an elastic material; and an adjustment unit (6) ), Including an adjustment body (7), which is movably mounted on the sprinkler body (2), and the adjustment body (7) includes a plurality of through holes (7.1) for providing a channel to the elastic liquid guide (4.2), and The water head (1) is adapted to change the sprinkler mode by moving the adjustment body (7) relative to the sprinkler body (2), which movement causes the elastic liquid guide (4.2) of the nozzle (4) to bend.

Description

Sprinkler head and sprinkler device

The invention relates to the field of general sprinklers. More specifically, the present invention relates to a sprinkler head suitable for changing the size of a sprinkler area.

Sprinklers, especially sprinklers for watering flowers or plants, are well-known and well-known techniques. The sprinkler device includes a housing having a liquid inlet, at least one liquid channel, and a liquid outlet; the liquid channel is used to guide liquid through the sprinkler device, and the liquid outlet is used to supply liquid, especially water, to a flower or a plant . The sprinkler device may include a valve for allowing / prohibiting the liquid flow through the liquid passage. In addition, a sprinkler device of the shower sprinkler type is known to include a sprinkler head having a plurality of liquid outlets, and includes an element for changing the size of a sprinkler area.

It is an object of embodiments of the present invention to provide a technically simple sprinkler that can be manufactured in a cost-effective manner and provides the possibility of changing the size of the sprinkler area. This objective is solved by the technical features of the independent terms. The preferred embodiment is given by the dependent items. If not explicitly stated, the embodiments of the present invention can be freely combined with each other.

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

The sprinkler head further includes a plurality of nozzles, which are disposed on the sprinkler body. Each nozzle includes a nozzle fluid passage. The nozzle fluid channels are coupled to the sprinkler fluid channel and the free ends of the nozzle fluid channels form a liquid outlet of the sprinkler head. The nozzles are arranged circumferentially around the 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 arranged 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 may be, for example, an elastomer.

The sprinkler head further includes an adjustment unit including an adjustment body, and the adjustment body is movably mounted on the sprinkler body. The adjusting body includes a plurality of through holes for providing a channel for the liquid guiding portions that are elastic. The sprinkler head is adapted to change the sprinkler mode by moving the adjusting body relative to the sprinkler body, and the movement causes the elastic liquid guide portions of the nozzles to bend.

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

According to an embodiment, the adjusting body is adapted to change a radial distance of the liquid outlet with respect to a central axis of the sprinkler head. In other words, by moving the adjusting body, the liquid guides are bent to guide the liquid nozzles of each nozzle provided in a specific direction, wherein the radial distance of the free ends of the liquid guides is relative to the central axis of the sprinkler head. And change. As a result, the size of the sprinkler area is significantly changed.

According to an embodiment, the adjusting body is rotatably provided on the sprinkler body. The adjusting body can rotate around a rotation axis, and the rotation axis can be the central axis of the sprinkler head. The adjusting body may include a guide device for converting the rotational movement of the adjusting body into a radial movement of the liquid outlet (relative to the central axis of the sprinkler head). The adjusting body may be a circular plate. Thereby, the simple design of the sprinkler is realized.

According to an embodiment, in a non-bent state of the liquid guides, the liquid guides are disposed parallel to each other. Preferably, the liquid guiding portions of all the nozzles may be disposed in parallel with each other. For example, in the non-bent state, the smallest size of the sprinkler area can be obtained because the liquid outlets of the nozzles are disposed near the central axis of the sprinkler head.

According to an embodiment, the adjusting body includes a plurality of oval through holes, wherein a distance between a first end of an oval through hole and a rotation axis of the adjusting body is greater than a second end of the oval through hole and the rotation. The distance between the axes. Due to the change in the distance, when the adjusting body is rotated 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, the liquid guides are deformed.

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

According to an embodiment, the longitudinal axes of the oval through holes are inclined with respect to a radial direction, and the radial direction refers to a rotation axis of the adjusting body. The inclination angle can be close to 90 degrees, for example, in the range of 70 degrees to 89 degrees, where the inclination angle opens outward (in the direction opposite to the central axis or rotation axis of the sprinkler head).

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

According to an embodiment, the adjusting body is slidably installed in the sprinkler head, wherein the sliding direction is parallel or substantially parallel to the central axis of the sprinkler head. The adjusting body may include a nozzle channel. When the adjusting body is slid, the nozzle channels apply a force in a radial inward direction or a radial outward direction to the liquid guiding portions.

According to an embodiment, the liquid lead portions of the nozzles are inclined with respect to the sliding direction. The tilt refers to non-curved liquid guides (no external force is applied to the liquid guides). For example, these nozzles are inclined 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 guides and the inclination angle is reduced, thereby reducing the size of the watering area.

According to an embodiment, the adjusting body includes a plurality of through holes, and edges of the through holes are closely fitted to the liquid guiding portions. The through holes have the nozzle channels mentioned above. The tight fitting system as used in the present invention means that the size of the through hole is suitable for the size of the liquid guide, so that the adjusting body can be easily moved relative to the liquid guide, but the edge of the through hole and the liquid guide are There is only a small gap between them. When the adjusting body is moved, the deformation of the liquid guiding part mentioned above is achieved.

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

According to an embodiment, a guide is provided between the adjustment body and the liquid outlets of the nozzles, and the guide is adapted to provide a side guide for the liquid guides. As a result, enhanced and guided movements of these liquid guides are obtained.

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

According to an embodiment, the guide body includes elliptical through-holes, and the longitudinal axes of the elliptical through-holes are radially arranged with respect to the central axis of the sprinkler head. Accordingly, the liquid guide portions can be moved in a radial direction, and can be guided to the radial direction in a vertical direction.

According to an embodiment, the adjusting body is suitable for changing, so that only some nozzles are bent by the adjusting body, otherwise the bending angle is different. Preferably, the nozzles (point symmetry with respect to the central axis) disposed opposite each other are bent by the same bending angle. Thereby, a sprinkler pattern with an elliptical cross section is obtained.

According to another aspect, the invention relates to a sprinkler device. The sprinkler device includes a sprinkler according to any of the above-mentioned embodiments.

"Approximately" or "approximately" as a term used in the present invention means to indicate within a deviation range from an exact value to plus / minus 10%, preferably within a deviation range of plus / minus 5% and / or only for function Insignificant deviations in form changes.

1‧‧‧ sprinkler

2‧‧‧ sprinkler body

2.1‧‧‧ Connection Department

3‧‧‧ sprinkler fluid channel

4‧‧‧ Nozzle

4.1‧‧‧ Nozzle fluid channel

4.2‧‧‧ liquid guide

4.3‧‧‧ nozzle base

4.4‧‧‧ Support Department

5‧‧‧ liquid outlet

6‧‧‧ adjustment unit

7‧‧‧ adjust body

7.1‧‧‧through hole

8‧‧‧ Adjustment Department

9‧‧‧ Guide

9.1‧‧‧through hole

10‧‧‧central bearing

10.1‧‧‧Seal ring

11‧‧‧ spring hook

12‧‧‧nut

13‧‧‧Connector

100‧‧‧Sprinkler

110‧‧‧shell

120‧‧‧ holding section

130‧‧‧Startup device

CA‧‧‧Center axis

d1, d2‧‧‧ distance

FD‧‧‧Fluid flow direction

RA‧‧‧Rotary shaft

RD‧‧‧Radial distance

SD‧‧‧ Sliding direction

Various aspects of the present invention, including its features and advantages, will be easily understood from the following description of the embodiments and illustrations, where: Figure 1 is an exemplary perspective view showing a sprinkler according to the first embodiment; Figure 2 is An exemplary front view showing the sprinkler head according to the first embodiment; FIG. 3 is an exemplary front view showing the sprinkler head according to the first embodiment when the guide is moved; and FIG. 4 is a sprinkler head according to the first embodiment Figure 5 is a cross-sectional view of a non-curved liquid guide; Figure 5 is a cross-sectional view showing a sprinkler head according to the first embodiment, with a liquid guide curved outward; Fig. 6 shows an exemplary perspective view of a sprinkler head according to the first embodiment; Fig. 7 shows a cross-sectional view of a sprinkler head according to the second embodiment with a non-curved liquid guide; Example is a cross-sectional view of a sprinkler head with a curved liquid guide; FIG. 9 is a cross-sectional view of a sprinkler head according to a third embodiment with a non-curved liquid guide; FIG. Another cross-sectional view of the sprinkler head of the embodiment having a non-curved liquid guide portion provided with a liquid spout; FIG. 11 is another cross-sectional view of the sprinkler head according to the third embodiment, with inclined liquids provided to cross each other Curved liquid guide of the spout; FIG. 12 shows an exemplary front view of a sprinkler head according to the third embodiment, with a non-curved liquid guide; FIG. 13 shows an exemplary front view of a sprinkler head according to the third embodiment , Has a curved liquid guide; and FIG. 14 is a side view showing an example of a sprinkler device.

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

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

A plurality of nozzles 4 are provided on the sprinkler body 2 on opposite sides of the connection portion 2.1. Each nozzle 4 includes a nozzle inlet, which is fluidly coupled to the sprinkler fluid channel 3 and a nozzle outlet. The nozzle outlet constitutes 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, A nozzle inlet and a nozzle outlet are provided at the end, wherein the nozzle fluid channel 4.1 is fluidly coupled to the sprinkler fluid channel 3 for providing a water flow through the nozzle 4.

Each nozzle 4 includes a nozzle base 4.3, and the liquid guide 4.2 is coupled to the sprinkler body 2 through the nozzle base 4.3. The liquid guide 4.2 may include a tubular shape. At least the liquid guide portion 4.2 is made of a flexible, elastic material, such as an elastomer. Preferably, the nozzle 4 is integrally formed and made of a flexible, elastic material (integrated nozzle). In addition, a plurality of nozzles 4 (the entire group of nozzles) or all of the nozzles 4 of the sprinkler head 1 may be integrally formed by a nozzle entity. The liquid guide portion 4.2 of the nozzle 4 projects from the front side of the sprinkler head 1. Due to the elastic, flexible material of the liquid guide portion 4.2 of the nozzle 4, the direction of the water flow can be changed by bending the liquid guide portion 4.2 of the nozzle 4.

The nozzles 4 are arranged circumferentially around the central axis CA of the sprinkler head 1. According to the current embodiment, the nozzle 4 is arranged in an annular area. For example, the nozzle 4 is disposed on the sprinkler body 2 with a plurality of concentric rings. For example, the nozzle ring includes 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 change the size of the watering area so that the irrigated material (for example, flowers or plants) can be irrigated by at least soft water and hard water, the sprinkler head 1 includes an adjustment unit 6 adapted to bend the liquid guide portion 4.2 in a specific direction to Change the sprinkler area. It is worth mentioning that due to the longitudinal shape of the liquid guide portion 4.2 of the nozzle 4, the watering area can be changed only by changing the alignment direction of the liquid guide portion 4.2.

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

In order to bend the liquid guide portion 4.2 of the nozzle 4, the adjusting body 7 is movably provided on the sprinkler head 1. Preferably, by moving the adjusting body 7, the alignment directions of all the liquid guiding portions 4.2 are changed at the same time, thereby changing the watering area affected by the sprinkler head 1. The sprinkler area can be changed by changing the radial distance RD of the liquid outlet 5 with respect to the central axis CA of the sprinkler head. In other words, by moving the adjusting body 7, the liquid guide portion 4.2 is bent, and thus, the The end is moved 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 adjusting body 7 is rotatably provided in the sprinkler head 1 to change the size of the sprinkler area. As shown in FIG. 3, the adjusting body 7 includes a plurality of oval through holes 7.1. The narrow side of the elliptical through hole 7.1 is adapted to the external dimensions of the liquid guide portion 4.2, so that the liquid guide portion 4.2 of the nozzle 4 is bent by the edges of these through holes.

According to this embodiment, the longitudinal axis of the elliptical through-hole 7.1 is inclined with respect to a radial direction, which radial direction points to the central axis of the sprinkler head 1. With this inclined arrangement of the elliptical through-hole 7.1, the liquid guide portion 4.2 is bent by the edge of the elliptical through-hole 7.1. For example, the longitudinal axis of the elliptical through-hole 7.1 is inclined relative to the radial direction (pointing to the central axis CA) at an angle of 70 degrees to 90 degrees, 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, where the The angle opens in the opposite direction of the central axis. The through hole 7.1 may include a curved shape. In other words, the plurality of oval through-holes 7.1 may form holes including a paddle wheel shape.

In order to rotate the adjusting body 7 provided inside the adjusting unit 6, the adjusting unit 6 further includes an adjusting portion 8. The adjusting portion 8 may be an adjusting ring, which is arranged on the sprinkler head 1 circumferentially. The adjusting portion 8 is rotatably mounted on the sprinkler head 1 and is coupled to the adjusting body 7 to rotate the adjusting body 7.

In order to prevent the liquid guide portion 4.2 from being deformed undesirably in the lateral direction with respect to the longitudinal axis of the through hole 7.1. The adjustment unit 6 further includes a guide body 9. The guide body 9 may form an outer body on the front side of the sprinkler head 1, for example, it may be provided near the liquid outlet 5 of the sprinkler head 1, and the adjustment body 7 may be provided between the guide body 9 and the nozzle base 4.3. The guide body 9 may include a plurality of oval through holes 9.1. The elliptical through-holes 9.1 may be radially or substantially radially provided on the guide body 9. For example, the longitudinal axis of the through-holes 9.1 is radially provided with respect to the central axis CA of the sprinkler head. Like the adjusting body 7, these oval through-holes 9.1 are provided in the guide body 9 so that the liquid guide portion 4.2 of each nozzle 4 is accommodated in an oval through-hole 9.1. In other words, the guide body 9 is placed on the plurality of liquid guide portions 4.2 such that the liquid guide portions 4.2 pass through the guide body 9 and the through hole 9.1 provides a passage for the liquid guide portion 4.2. The guide body 9 may also include a plate shape and a planar shape.

Preferably, the guide body 9 is elastically arranged on the sprinkler head 1, that is, there is relative movement between the movable, particularly rotatable adjustment body 7 and the fixedly arranged guide body 9. Due to the oblique arrangement of the oval through hole 7.1 relative to the radial arrangement of the oval through hole 9.1 of the guide body 9 and the adjustment body 7 In close proximity to the arrangement of the guide body 9, each liquid guide section 4.2 provides a well-defined passage through the adjustment unit 6, thereby achieving a well-defined guide for the liquid guide section 4.2.

6 to 8 show a second embodiment of the sprinkler head 1. As in the first embodiment, the sprinkler head includes a sprinkler body 2 including a connecting portion 2.1 for connecting the sprinkler 1 to a sprinkler. Unit base unit or a water pipe. Compared with 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, 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 nozzle 4 of the sprinkler 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, so that in this non-bent state (without external force applied by the adjustment body 7), all the nozzles 4 are inclined at the same angle with respect to the central axis CA.

According to the second embodiment, the adjusting body 7 is slidably disposed in the sprinkler head 1 to change the size of the sprinkled area. The adjusting body 7 included in the sprinkler head 1 includes a plurality of through holes 7.1, wherein the sizes of the through holes are adapted to the outer dimensions of the liquid guide portions 4.2 of the nozzle 4 for the liquid guide portions 4.2 to pass through the edges of the through holes. While bending. 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 guide portion 4.2 (for example, a portion close to the nozzle base 4.3) and the central axis CA is different, and is preferably smaller than the liquid guide portion 4.2 The distance between the upper part (for example, the part near the liquid outlet 5) and the central axis CA. Therefore, by tilting the adjusting body 7 in a direction parallel to the central axis CA, these nozzles are deformed or bent by the edges of the through hole 7.1 of the adjusting body 7.

Figures 7 and 8 illustrate two different positions of the adjustment body 7, namely a retracted position (the adjustment body 7 is located near the support section 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 guide portion 4.2 is deformed, thereby pushing the liquid outlet 5 closer to the central axis CA. According to another configuration, the liquid guide 4.2 can be deformed so that the liquid outlet 5 is far from the central axis CA. Thus, the sprinkler mode of the sprinkler head 1 is changed.

In order to offset the adjustment body 7 provided inside the adjustment unit 6, the adjustment unit 6 further Includes an adjustment section 8. The adjusting portion 8 may be an adjusting ring, which is arranged on the sprinkler head 1 circumferentially. The adjusting portion 8 is rotatably mounted on the sprinkler head 1 and is coupled to the adjusting body 7 to offset the adjusting body 7. In more detail, the adjusting portion 8 may include an internal thread, which is coupled to the lateral protrusions of the one or more adjusting bodies 7 to convert a rotational movement of the adjusting portion 8 into a lateral movement (offset) of the adjusting body 7.

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

Preferably, the guide body 9 is fixedly disposed on the sprinkler head 1, that is, there is relative movement between the movable, particularly rotatable adjusting body 7 and the fixedly arranged guide body 9.

Figures 9 to 13 show further embodiments of the sprinkler head 1. In the following, only the differences between the further embodiments and the aforementioned embodiments will be described. In addition, these features of the aforementioned embodiments are incorporated by reference.

As in the above embodiment, the sprinkler head 1 includes a sprinkler head body 2 including a sprinkler fluid channel 3 and a nozzle body. The nozzle body includes a plurality of nozzles 4 made of elastic material.

In contrast to the foregoing embodiment, the sprinkler head 1 preferably does not include any guide body 9. Therefore, according to this embodiment, the adjusting body 7 is also provided on the cover plate on the front side of the sprinkler head 1. The adjusting body 7 includes a plurality of through holes 7.1. The through holes 7.1 are provided in the adjusting body 7 so that the liquid guide portion 4.2 of each nozzle 4 is received in one through hole 7.1. In other words, the adjustment body 7 is placed on the plurality of liquid guide portions 4.2 such that the liquid guide portion 4.2 passes through the adjustment body 7 and the through hole 7.1 provides a passage for the liquid guide portion 4.2. Preferably, the liquid guiding portion 4.2 in the through hole 7.1 is guided by a force to obtain a repeatable watering pattern. In addition, since there is a minimum gap between the liquid guide 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 adjusting body 7 is rotatably mounted on the sprinkler body 2 by a central bearing 10, that is, the adjusting body 7 can rotate around the central axis of the sprinkler head 1, wherein the rotation axis RA coincides with the central axis. . A sealing ring 10.1 may be provided in the region of the central bearing 10. The sealing ring 10.1 can provide a frictional force between the rotatable adjusting body 7 and a fixed setting portion of the connecting member 13 forming the central bearing 10, so as to avoid undesired movement of the adjusting body 7. According to other embodiments, the friction between the central bearing 10 and the adjusting body 7 may be obtained by other friction force generating devices, for example, using a clamping device, a clamping rib, or a mutual adjustment between the adjusting body 7 and the central bearing 10 Connected components.

Preferably, the adjusting body 7 is mounted on the sprinkler body 2 by a snap-onmechanism directly. The adjusting body 7 may include at least a pair of spring hooks 11 extending from the bottom of the adjusting body 7, that is, including a through hole 7.1 on a side opposite to the plate-like portion. The spring hook 11 interacts with a slot or a nut 12 provided on the sprinkler body 2, so that the adjusting body 7 is connected to the sprinkler body 2 by the spring hook 11 being engaged with the nut 12.

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

Preferably, the slot or the nut 12 includes a length (in the circumferential direction) larger than the width of the spring hook 11. Thus, the adjusting body 7 can rotate around the rotation axis RA, wherein the rotation angle is limited by the edge of the slot or the nut 12. In other words, the edge of the slot or the nut 12 forms a stopper which interacts with the spring hook 11 so that the rotation angle of the spring hook 11 is limited to a certain angle. The angle may be in a range between 5 degrees and 20 degrees, preferably in a range between 10 degrees and 15 degrees, especially 11 degrees, 12 degrees, 13 degrees, or 14 degrees.

10 and 12 relate to the rotation position of the adjusting body 7, in which the liquid guide portion 4.2 of the nozzle 4 is not bent. For example, the adjusting body 7 does not apply a force to the nozzle 4. Therefore, the liquid guide portions 4.2 of the nozzle 4 are parallel to each other and to the central axis CA.

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

FIG. 14 shows a hand-held sprinkler device 100 according to an embodiment. The sprinkler device 100 may be a hand-held device, for example, 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 holding portion 120 for holding the sprinkler device 100. The sprinkler device 100 may further include an activation device 130, for example, a button. The activation device 130 is 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 may include a sprinkler head according to one of the above-mentioned embodiments for bringing out the same water flow rate (for example, a small and large sprinkler area) with different sprinkler areas. It is worth mentioning that the sprinkler head 1 can be adapted to provide a stepless adaptation of a sprinkler area by the stepless movement (rotation, sliding) of the adjusting body 7.

Alternatively, the hand-held sprinkler 100 may be provided by a rod on a certain distance on the ground, where the liquid is sprayed upward. Due to the sprinkler adjustment mechanism, the diameter of the sprinkler area can be continuously changed between 0.2 meters and 3 meters.

It should be noted that the embodiments and invention drawings only illustrate the principles of the proposed method and system. Although not explicitly described or illustrated, those skilled in the art can implement various arrangements to embody the principles of the present invention.

Claims (4)

A sprinkler head for a sprinkler device (100), the sprinkler head includes: a sprinkler body (2), including a sprinkler fluid channel (3); a plurality of nozzles (4), each nozzle (4) includes A nozzle fluid channel (4.1), wherein the nozzle fluid channels (4.1) are coupled to the sprinkler fluid channel (3) and the free ends of the nozzle fluid channels (4.1) form a liquid outlet of the sprinkler (1) (5), wherein the nozzles (4) are arranged circumferentially around the central axis (CA) of the sprinkler head (1), wherein each nozzle (4) includes a liquid guide (4.2), and the liquid guide (4.2 ) Includes the nozzle fluid channel (4.1) and is made of an elastic material; and an adjustment unit (6) including an adjustment body (7), the adjustment body (7) is movably mounted on the sprinkler body (2 ), The adjusting body (7) includes a plurality of through holes (7.1) for providing a channel for the liquid guiding portions (4.2) of elasticity, wherein the sprinkler head (1) is adapted to be opposed to the sprinkler body by (2) The adjustment body (7) is moved to change the watering mode, and the movement causes the elastic liquid guides (4.2) of the nozzles (4) to bend, wherein the adjustment body (7) can rotate It is arranged on the sprinkler body, characterized in that the adjusting body (7) has a plurality of through holes (7.1) including edges, and when the adjusting body (7) is rotated, the edges are close to the liquid guides (4.2) and thereby bend the liquid guides (4.2) in a circumferential direction relative to the rotation axis of the adjustment body (7), wherein the adjustment body (7) is adapted so that only some nozzles (4) are The adjusting body (7) is bent, or the bending angle is different, and the nozzles (4) which are arranged opposite to each other with respect to a point symmetrical to the central axis (CA) are bent by the same bending angle. According to the sprinkler head for a sprinkler device according to item 1 of the scope of the patent application, in a non-bent state of the liquid guide portions (4.2), the liquid guide portions (4.2) are arranged parallel to each other. According to the sprinkler head for a sprinkler device according to item 1 or item 2 of the patent application scope, wherein the adjusting body (7) includes a plurality of through holes (7.1), and the edges of the through holes (7.1) are tightly fitted The liquid guides (4.2). A sprinkler device includes a sprinkler according to any one of claims 1 to 3 of the scope of patent application.