JP3026739U - Watering nozzle - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a sprinkling nozzle capable of sprinkling water in addition to a plurality of sprinkling forms. A sprinkling nozzle (1) is composed of a nozzle body (2) formed in a V shape and a rotating body (3) rotatably provided at a tip of the nozzle body (2). In the nozzle body 2, a flowing water passage 12 including an introduction passage 13 and a communication passage 15 is formed, and the introduction passage 15 is provided with a throttle portion 21. The diameter of the flow passage 22 of the throttle portion 21 is set to be smaller than that of the introduction passage 13 and the communication passage 15. The rotating body 3 is composed of a water flow plate 32, a water spray cover 34 that holds the water flow plate 32 and is fitted to the tip of the nozzle body 2, and a cover ring 35 that is fitted onto the water spray cover 34. The front surface 36 of the sprinkling cover 34 has a plurality of shower holes 4
2, the water spout 43 and the direct water port 44 are formed. The large-diameter cylindrical portion 52 of the water flow plate 32 inserted into the water spout 43 has an opening area larger than that of the flow opening 22.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a sprinkler nozzle having a plurality of jet patterns.

[0002]

[Prior art]

 As shown in FIG. 8 and FIG. 9, the conventional sprinkling nozzle is configured so as to switch between the direct water W1 and the sprinkling water W2 according to the usage situation and to eject the water (actually, see Sho 60-42372). (See the official gazette).

That is, a nozzle body 81 of this water sprinkling nozzle is provided with a flowing water passage 82 having a flow passage diameter D 1, and a tip end of the flowing water passage 82 has an insertion hole 83 having a diameter D 2 smaller than the flow passage diameter D 1. Is provided. The nozzle body 81 is provided with a valve body 84 for opening and closing the insertion hole 83, and the valve body 84 is provided with a lever 85 extending to the outside of the nozzle body 81.

A cylindrical portion 86 is formed at the tip of the nozzle body 81, and a cylindrical member 87 having a diameter D 3 larger than the insertion hole 83 is fitted on the cylindrical portion 86. An air hole 88 is opened in the side wall of the cylindrical member 87. When the air hole 88 is opened, as shown in FIG. ing. Further, when the air hole 88 is closed with a finger, as shown in FIG. 9, the spout water W2 can be ejected.

[0005]

[Problems to be solved by the device]

 However, in the sprinkling nozzle, it was only possible to switch between the direct water W1 and the water sprinkling W2, and sprinkling could not be performed in other sprinkling forms.

The present invention has been made in view of such conventional problems, and an object thereof is to provide a sprinkling nozzle capable of sprinkling water in addition to a plurality of sprinkling modes. It

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, a water sprinkling nozzle of the present invention comprises a nozzle body having a flowing water passage formed therein, and a rotating body rotatably provided at the tip of the nozzle body. , A decompression chamber for depressurizing the upstream water pressure is formed in the running water channel, and each of the rotors is selectively connected to the decompression chamber in accordance with the rotation of the rotor. A plurality of sprinkling ports and a sprinkling port for sprinkling water while maintaining the water pressure reduced in the decompression chamber were provided.

That is, when the sprinkling nozzle is used, the rotating body is rotated so that the spout selected from a plurality of spouts each having a different shape is formed in the water passage of the nozzle body. Connect to pressure chamber. Then, sprinkling is performed in a sprinkling form corresponding to the shape of the selected sprinkling port. In addition, when the rotating body is rotated to connect the water spout to the decompression chamber, the water pressure supplied to the flowing water passage is reduced in the decompression chamber, and then the water pressure is maintained in the state where the water pressure is maintained. Water is sprinkled from the water spout.

[0009] Preferably, a narrowed portion that reduces the inner diameter of the flowing water passage is formed on the wall surface forming the flowing water passage, and the flow rate is regulated by this narrowed portion, so that the downstream portion of the narrowed portion is reduced. The decompression chamber was formed on the side, and the opening area of the water spout was set to be larger than the opening area of the throttle portion.

That is, by forming a narrowed portion on the wall surface of the flowing water channel, the decompression chamber is formed on the downstream side of the flowing water channel with the narrowed portion as a boundary. By setting the opening area of the water spouting opening to be larger than the opening area of the throttle portion, water pressure reduced in the decompression chamber is maintained and water is sprinkled from the water spouting opening.

Further, the throttle portion forms a valve seat on which a valve body for adjusting the flow rate in the flowing water channel is seated.

[0012] Thus, the valve seat on which the valve body for adjusting the flow rate is seated and the throttle portion for forming the decompression chamber can be shared.

Further, the wall surface of the decompression chamber is formed to be inclined with respect to the flow direction of the fluid passing through the throttle portion.

For this reason, the fluid that has passed through the throttle portion contacts the wall surface of the pressure reducing chamber that is inclined with respect to the flow direction of the fluid, and then is sprayed from the water spout.

[0015]

[Embodiment of device]

 An embodiment of the present invention will be described below with reference to the drawings. That is, as shown in FIG. 1, the water sprinkling nozzle 1 is made of synthetic resin, and has a cylindrical nozzle body 2 and a plurality of rotatably provided at the tip of the nozzle body 2. And a cylindrical connection plug 4 screwed to the base end of the nozzle body 2.

The nozzle body 2 has a gripping portion 5 for gripping, a bending portion 6 formed at an upper end of the gripping portion 5, a front portion F extending from the bending portion 6, and a tip end. It is integrally formed with the extending portion 7 that expands in diameter toward the. The bending portion 6 is provided with an operation lever 10 for adjusting the amount of water sprayed with the outer peripheral space 8 of the bending portion 6 as a rotation region 9, and an upper portion of the extending portion 7 is provided with a front portion. A stopper 11 with which the operating lever 10 operated on the F side abuts is formed.

Inside the nozzle body 2, as shown in FIG. 2, a running water passage 12 is formed for allowing tap water supplied from the connecting plug 4 to flow to the rotating body 3. The water passage 12 extends along the extending direction of the grip portion 5, an introduction passage 13 whose tip reaches the inside of the bending portion 6, and an upper portion of the extension portion 7 communicating with the introduction passage 13. It comprises a communication passage 15 extending along the wall 14. The communication passage 15 is formed eccentrically on the upper side in the extending portion 7, and a connecting sleeve 17 is fitted to the tip end thereof via a first O-ring 16.

The flowing water passage 12 is bent at a connection portion between the introduction passage 13 and the communication passage 15, and the diameter of the introduction passage 13 is reduced at this connection portion as shown in FIG. The narrowed portion 21 is provided so as to project vertically inward from the wall surface of the introduction path 13. At the center of the narrowed portion 21, there is formed a flow passage 22 having an inner diameter D2 smaller than the inner diameter D1 of the introduction passage 13, and the inner diameter D3 of the communication passage 15 is The diameter is set to be larger than the inner diameter dimension D2 of the flow port 22. As a result, the communication path 15 forms a decompression chamber that reduces the water pressure of tap water that has flowed in through the throttle portion 21.

The throttle portion 21 has a ring-shaped protruding portion 24 formed on the side surface on the side of the grip portion 5 for holding a seal member 23 arranged along the edge of the flow port 22. The throttle portion 21 forms a valve seat 25 together with the seal member 23. A rotary valve body 26 connected to the operation lever 10 is seated on the valve seat 25, and when the operation lever 10 is operated to the front F, the valve body 26 flows through the valve. As shown in FIG. 4, the valve body 26 is configured to open the flow passage 22 so as to close the mouth 22 and when the operation lever 10 is operated rearward R. ing.

As shown in FIG. 3, the rotating body 3 holds the water flow plate 32, which is in contact with the connection sleeve 17 via the second O-ring 31, and the third water flow plate 32. The water spray cover 34 is fitted to the tip of the extending portion 7 via the O-ring 33, and the cover ring 35 is fitted onto the water spray cover 34. The sprinkling cover 34 is composed of a disk-shaped front surface 36 that bulges outward and a peripheral side portion 37 that is provided upright on the entire peripheral edge of the front surface 36. Engaging claws 39 that engage with the engaging grooves 38 formed along the outer peripheral surface of the projecting portion 7 are formed. Further, on the inner surface of the circumferential side portion 37, first and second step portions 40 and 41 are formed from the front surface 36 side. As shown in FIG. 5, the front surface 36 is provided with a plurality of shower holes 42, ... Forming the first water spouting port over the entire surface, and is eccentric to the upper side in FIG. A water spout 43 is provided at the site, and a straight water port 44 that forms a second water spout is provided at the site eccentric to the right in the figure.

As shown in FIGS. 6 and 7, the water flow plate 32 is formed in a circular shape to be housed in the water spray cover 34, and has a first step of the water spray cover 34 at the peripheral edge. A hook-shaped wall 51 that abuts the portion 40 stands (see FIG. 3). The water flow plate 32 is provided with a large-diameter cylindrical portion 52 inserted into the water spout 43 of the water spray cover 34 and a small-diameter cylindrical portion 53 inserted into the direct water inlet 44. Further, a circular hole 54 is opened on the lower side in FIG. 7, and the circular hole 54 is covered by an eaves portion 55 provided separately on the water flow plate 32. A taper portion 56 is provided at the base end of the small-diameter tubular portion 53 so as to reduce its diameter toward the distal end, and is configured to pressurize the tap water passing through the small-diameter tubular portion 53. Further, the large-diameter cylindrical portion 52 is set so that the opening area thereof is larger than the opening area of the flow passage 22 formed in the throttle portion 21 of the nozzle body 2.

That is, the rotating body 3 including these members 32, 34, and 35, when rotated, is either the large diameter cylindrical portion 52, the small diameter cylindrical portion 53, or the circular hole 54 of the water flow plate 32. Are configured to be selectively connected to the communication passage 15 formed in the nozzle body 2. That is, when the circular hole 54 is connected to the communication passage 15, tap water sent from the communication passage 15 is passed between the water flow plate 32 and the water spray cover 34 via the circular hole 54. After being stored, it is configured to be sprayed as shower water from a plurality of shower holes 42, ... Provided in the spray cover 34. When the small-diameter tubular portion 53 is connected to the communication passage 15, tap water depressurized in the communication passage 15 is re-pressurized by the taper portion 56 at the proximal end of the small-diameter tubular portion 53, It is configured so that it is vigorously ejected as direct water from the direct water port 44. Further, when the large-diameter cylindrical portion 52 is connected to the communication passage 15, the tap water depressurized in the communication passage 15 is not pressurized but is discharged from the water discharge port 43 as water. ing.

When water sprinkling is performed using the water sprinkling nozzle 1 having the above-described structure, the rotating body 3 provided at the tip of the nozzle body 2 is rotated to be mounted on the water sprinkling plate 32 of the rotating body 3. Any of the large-diameter cylindrical portion 52, the small-diameter cylindrical portion 53, or the circular hole 54 thus formed is connected to the communication passage 15 of the nozzle body 2. For example, when the circular hole 54 is connected to the communication passage 15, shower water can be sprayed from a plurality of shower holes 42 provided in the spray cover 34 of the rotating body 3. Moreover, when the small-diameter cylindrical portion 53 is connected to the communication path 15, direct water can be vigorously ejected from the direct water port 44 provided in the water spray cover 34.

On the other hand, when the large-diameter cylindrical portion 52 is connected to the communication passage 15, the tap water supplied to the introduction passage 13 of the nozzle body 2 is supplied to the throttle portion 21 provided in the introduction passage 13. Accordingly, the flow rate is regulated, and the water pressure is reduced in the communication passage 15 provided on the downstream side of the throttle portion 21. Then, the depressurized tap water is added from the water spout 43 of the water spray plate 34 through the large-diameter cylindrical portion 52 having an opening area larger than the opening area of the flow passage 22 of the throttle portion 21. It is ejected as a spilled water that spills without being pressed.

As described above, in the water sprinkling nozzle 1 according to the present embodiment, the rotating body 3 provided at the tip of the nozzle body 2 is rotated to generate shower water or direct water. Water can be sprinkled, and in addition to these sprinkling forms, sprinkling can be used. Therefore, compared to the conventional water spray nozzle that can only switch between direct water that spouts with the supplied water pressure and jet water that depressurizes the supplied water pressure, the usage form is wider and more convenient. Will increase.

The running water passage 12 provided in the nozzle body 2 is composed of an introduction passage 13 and a communication passage 15. By forming a narrowed portion 21 on the wall surface of the introduction passage 13, the flowing water passage 12 of the narrowed portion 21 is formed. Since the communication passage 15 provided on the downstream side can be used as the decompression chamber, it is not necessary to newly provide the decompression chamber in the nozzle body 2.

Further, the throttle portion 21 forms a valve seat 25 on which a valve body 26 for adjusting the flow rate in the water flow passage 12 is seated together with a seal member 23 arranged in the throttle portion 21. Therefore, it is possible to share the valve seat 25 and the throttle portion 21 for forming the decompression chamber. Therefore, the manufacturing cost can be reduced as compared with the case where the throttle portion 21 and the valve seat 25 are separated.

On the other hand, as shown in FIG. 4, the communication passage 15 forming the decompression chamber is provided by refracting the introduction passage 13, and tap water passing through the throttle portion 21 is As indicated by the arrow B in the drawing, since it abuts on the upper wall surface 14 of the communication passage 15 that is inclined with respect to the flow direction of tap water, the pressure reducing effect can be achieved without reducing the inner diameter of the throttle portion 21 more than necessary. Can be obtained.

Note that, in the present embodiment, the rotating body 3 capable of spraying in two types of sprinkling forms of shower water and direct water other than the sprinkling water has been described as an example. You may use the rotating body which forms a water sprinkling form.

[0030]

[Effect of device]

 As described above, in the sprinkling nozzle of the present invention, by rotating the rotating body provided at the tip of the nozzle body, a sprinkling form selected arbitrarily from a plurality of predetermined sprinkling forms. It is possible to sprinkle water, and by selecting the water spouting port, it is possible to reduce the supplied water pressure in the decompression chamber and then to perform watering while maintaining this depressurized state. Therefore, compared to conventional sprinkling nozzles that can only switch between direct water that spouts with the supplied water pressure and jetted water that depressurizes the supplied water pressure, the usage pattern is expanded and convenience is increased. .

Further, since the decompression chamber can be formed on the downstream side of the flowing water channel with the constricted portion as a boundary, by forming the constricted portion on the wall surface of the flowing water channel, the nozzle body is newly provided. There is no need to provide a decompression chamber.

Further, regarding that the throttle portion forms the valve seat of the valve element, the valve seat on which the valve element is seated and the throttle portion for forming the decompression chamber are shared. Therefore, the manufacturing cost can be reduced as compared with the case where the throttle portion and the valve seat are separated.

When the wall surface of the decompression chamber is formed so as to be inclined with respect to the flow direction of the fluid passing through the throttle portion, the fluid passing through the throttle portion has the flow direction of the fluid. After coming into contact with the wall surface of the inclined decompression chamber, water is sprinkled from the water spout. Therefore, the pressure reducing effect can be obtained without reducing the inner diameter of the narrowed portion more than necessary.

[0034]

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a sectional view of the same embodiment.

FIG. 3 is an enlarged view showing a main part of FIG.

FIG. 4 is a cross-sectional view of an essential part showing a state in which an operation lever of the embodiment is operated.

FIG. 5 is a front view showing a water spray cover in the embodiment.

FIG. 6 is a front view showing a water flow board in the embodiment.

7 is a cross-sectional view taken along the line AA of FIG.

FIG. 8 is a partial cross-sectional view showing a conventional watering nozzle.

FIG. 9 is a partial cross-sectional view showing a usage pattern of a water spray nozzle in the conventional example.

[Explanation of symbols]

 1 Nozzle for Water Sprinkling 2 Nozzle Main Body 3 Rotating Body 12 Flow Channel 13 Inlet Channel 15 Communication Path (Decompression Chamber) 21 Throttling Port 22 Flow Port 23 Seal Member 25 Valve Seat 26 Valve Body 42 Shower Hole (First Water Spout Port) 43 Water spout 44 Direct water (second water spout) 52 Large diameter cylinder D1 Inner diameter D2 Inner diameter

Claims (4)

[Scope of utility model registration request] 1. A nozzle main body having a flowing water passage formed therein and a rotating body rotatably provided at the tip of the nozzle main body, wherein the water pressure on the upstream side is reduced in the flowing water passage. While forming a decompression chamber, in the rotating body, with the rotation of the rotating body, a plurality of water spouts each of which is selectively connected to the decompression chamber and formed in a different shape, and the decompression chamber A sprinkling nozzle that is provided with a water spout for maintaining a reduced water pressure and sprinkling water. 2. A throttle portion for reducing the inner diameter of the flow passage is formed on the wall surface forming the flow passage, and the flow rate is regulated by the throttle portion, so that the flow passage is provided downstream of the throttle portion. The water spray nozzle according to claim 1, wherein the decompression chamber is formed and the opening area of the water spout is set to be larger than the opening area of the throttle portion. 3. The water spray nozzle according to claim 2, wherein the throttle portion forms a valve seat on which a valve body for adjusting a flow rate in the water flow passage is seated. 4. The water spray nozzle according to claim 3, wherein a wall surface of the decompression chamber is formed to be inclined with respect to a flow direction of a fluid passing through the throttle portion.