JPH0626366Y2 - Watering nozzle - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler nozzle which is convenient to use for sprinkling water in kitchens, bathrooms, gardening and the like.

[0002]

2. Description of the Related Art In a conventional sprinkling nozzle, as described in, for example, Japanese Utility Model Publication No. 3-128446, a hollow nozzle main body having a hose connecting portion at its base end is provided with an adjusting valve and a nozzle. The tip of the main body is closed to form a through hole in front of the closed part, and an internal flow passage is held on the outer peripheral side of the nozzle main body to slidably surround the intermediate cylinder and communicate with the outer circumference of the intermediate cylinder. A hole is bored, and the water from the nozzle body is primarily configured to pass through the internal flow passage through the through hole and to be sprayed from the tip of the intermediate cylinder. The water is sprayed depending on the sliding position of the intermediate cylinder. The shape is variously changed.

Secondly, by advancing the intermediate cylinder forward, the through hole of the nozzle body communicates with the communication hole of the intermediate cylinder and is formed between the intermediate cylinder and the outermost cylinder portion. It is configured so that shower-like water can be discharged from a different water sprinkling port, for example, a perforated plate, provided through the external flow passage.

In the sprinkling nozzle having such a structure, various forms of sprinkling are carried out depending on the position of the intermediate cylinder that slides back and forth.

The intermediate cylinder which surrounds the outer periphery of the nozzle body changes the communication passage so that various water discharges can be performed depending on the sliding position. However, forming the intermediate cylinder integrally is a synthetic resin molding. Since it is difficult due to the problem of die-cutting above, it is divided into a front intermediate cylinder and a rear intermediate cylinder, and their ends are fitted and connected in an overlapped manner to form the intermediate cylinder.

[0006]

In the conventional sprinkler nozzle intermediate cylinder constructed as described above, the front intermediate cylinder and the rear intermediate cylinder are integrally joined by connecting the ends thereof in an overlapped manner. Is configured to form
There are disadvantages such as the sealing member on the outer peripheral side surface of the nozzle body located inside the inner peripheral side surface of the intermediate cylinder, especially when the sealing member is rolled up when sliding on the fitting joint, and it is difficult to smoothly slide. Also, when the seal member mounted on the outer peripheral side surface of the nozzle body is located in the internal flow passage, there is a risk that the seal member may be rolled up by the water pressure when water flows through the internal flow passage, causing a peeling phenomenon of the seal member. It was

Further, in the intermediate cylinder divided into the front intermediate cylinder and the rear intermediate cylinder, a complicated machine is required for joining and fitting the respective intermediate cylinders, and there is a risk that the resin molding becomes expensive.

Furthermore, when the flow passage is switched between the internal flow passage and the external flow passage by the forward / backward movement of the intermediate cylinder, the flow passage is momentarily closed or opened, so that the hydraulic pressure is instantaneously communicated. A kind of water hammer phenomenon occurs due to the applied flow path, uncomfortable vibration is felt at the operator's hand, and unreasonable force is applied to each member constituting the nozzle, especially water leaks to the seal part. There was a risk of danger.

An object of the present invention is to provide a sprinkling nozzle capable of solving the above problems.

[0010]

SUMMARY OF THE INVENTION According to the present invention, a hollow end of a hollow nozzle body whose base end communicates with a hose connecting portion is closed,
On the outer peripheral side of the nozzle body, an internal flow passage is held at regular intervals to surround an intermediate cylinder, and the tip of the internal flow passage is communicated with a nozzle port located at the tip of the nozzle body. A first seal member and a second seal member are provided on the outer peripheral side surface in front and rear in the axial direction so that the first seal member and the second seal member can be crimped to the inner peripheral side surface of the intermediate cylinder, and a through hole is formed on the outer peripheral side surface of the nozzle body as a first seal. A hole is provided between the member and the second seal member, and an outer flow passage is held at a constant interval on the outer peripheral side of the intermediate cylinder to surround the outermost cylindrical portion, and the base end of the same flow passage is the intermediate cylinder. It is configured to communicate with the through hole through the communication hole by the advance of
In addition, the tip of the same flow passage is characterized by the following configuration in the water spray nozzle that communicates with the different water spray port formed at the tip of the outermost tubular portion.

1) The intermediate cylinder is divided into a front intermediate cylinder and a rear intermediate cylinder, and a rib is provided on the inner peripheral side surface of the front intermediate cylinder with a constant gap in the circumferential direction. The seal member is brought into contact with each other, the gap between the ribs is used as an internal flow passage, and a recess for fitting with the rib of the front intermediate cylinder is formed at the tip opening edge of the rear intermediate cylinder. And a rear intermediate cylinder are integrally connected to each other, the ribs are fitted into the recesses of the rear intermediate cylinder so that they can be integrally connected. 2) A tip opening edge portion of the rear intermediate cylinder Is a sprinkling nozzle in which the inner peripheral surface of the tip opening edge portion is an inclined surface with a tip expanding shape, and 3) in the axial direction at the corner side end portion of the recess formed in the tip opening edge portion of the rear intermediate cylinder. The water spray nozzle has a notch groove deeper than the depth of the recess.

[0012]

In the present invention, by the means described above, the hose is connected to the hose connecting portion in the state shown in FIG. 1, the faucet of the water supply is opened, the gripping lever is pressed, and the outermost peripheral cylinder portion is moved slightly forward. If it moves to, the water will be atomized from the nozzle mouth and jet out, and if the outermost cylinder part is moved further forward, the tip adjustment rod part protruding in the nozzle mouth will retreat and the nozzle mouth will be It has a large opening, and water is jetted straight.

The water discharged from the nozzle port is formed from the gap between the ribs while the ribs provided on the inner surface of the pre-stage intermediate cylinder maintaining a constant gap are in contact with the first seal member of the nozzle body. Water is discharged through the internal flow passage. Further, since the inner surface of the rib and the first seal member are constantly in the pressure-bonded state, abrasion due to curling of the first seal member is prevented.

When the outermost cylinder is further advanced, the through hole is closed by the first seal material, the second seal material and the inner side surface of the intermediate cylinder provided before and after the through hole, and the water from the nozzle opening is closed. It will stop the outflow. Furthermore, by advancing the outermost cylindrical portion and slightly opening the gap between the second sealing material provided between the through hole and the communication hole and the projecting member, water passes through the external flow passage and is dispersed in a different manner. The water flows out like a watering can through a water port, for example, a perforated plate, and when the adjusting cylinder is further advanced as shown in FIG.

In the water sprinkling nozzle of the present invention, the front end opening edge of the rear intermediate cylinder is constructed so as to be fitted in close contact with the inner peripheral side surface of the front intermediate cylinder, and the front end opening edge is
A recessed portion that fits with the rib provided on the front intermediate cylinder is formed, and an inclined surface is formed from the inner peripheral surface of the protruding piece formed by each recessed portion to the inner peripheral surface of the tip opening edge portion, and the inclined surface With the gradual divergent slope toward the tip direction, the seal surface of the nozzle body easily enters and retracts smoothly into the rear intermediate cylinder, and wear of the seal surface is prevented.

Further, in the concave portion, a groove deeper than the concave portion is cut out at one corner end of the concave portion, so that the nozzle main body is slid forward and backward to allow the through hole to flow through the internal flow passage and the external flow passage. In the case of operating by switching to the road, the transition of the flow path is performed smoothly and slowly without sudden switching, so the impact due to switching is reduced and the so-called water hammer phenomenon is prevented.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 is a cross-sectional view of a water sprinkling nozzle of the present invention, in which reference numeral 1 is a gripping cylinder, a hose connecting portion 2 is provided at the rear end of the gripping cylinder, and a head body provided with an ejection port 3 at the tip 4, a grip lever 6 is rotatably provided on the grip cylinder 1 via a bracket 5. At the tip of the grip lever 6, an adjusting valve 7 is provided which is slidably inserted in the rear half of the head body 4, and the rear end of the adjusting valve 7 is connected to the upper end of the grip lever 6. A protrusion 8 is formed in the middle of the regulating valve 7, and a spring 9 is interposed between the protrusion 8 and the inner rear end of the head body 4, so that the regulating valve 7 is always forward. I am biased.

A rear end opening of the nozzle body 10 is connected to the head body 4, and at the rear end of the nozzle body 10,
A valve receiving portion 11 that comes into contact with or separates from the adjusting valve 7 is provided. Therefore, if water flows in from the hose connecting portion 2 provided at the rear end of the grip cylinder 1, the water will pass through the grip cylinder 1 and the adjusting valve 7
If the adjusting valve 7 is moved backwards against the urging force of the spring 9 by operating the gripping lever 6, it moves between the valve receiving portion 11 provided at the rear end of the nozzle body 10. A flow hole is formed in the nozzle body to allow water to flow into the nozzle body 10, and further, the pressure of the grip lever 6 can be adjusted to adjust the flow rate.

The nozzle body 10 closes the tip and
In front of the closed portion, a mushroom-shaped tip adjusting rod portion 12 is continuously provided, and a through hole 13 is provided in the front peripheral side surface of the nozzle body 10, and the front and rear of the through hole 13 are formed. At the position, the first seal member 14 and the second seal member 15 made of a rubber material are attached to the outer peripheral side surface of the nozzle body.

Reference numeral 16 is a third seal member mounted on the rear portion of the nozzle body 1.

On the outer peripheral side surface of the nozzle body 10, an intermediate cylinder 17 is surrounded by holding an internal flow passage 18. Internal flow passage
When communicating with the through hole 13 of the nozzle body 10, 18 is an opening of the internal flow passage 18 via a gap formed between the front half of the nozzle body 10 and the front half of the intermediate cylinder 17, that is, the internal flow passage 18. It is configured so that water is discharged from a gap between the nozzle port (23) and the tip adjusting rod part (12) of the nozzle body (10).

A communication hole 19 is formed in the middle of the intermediate cylinder 10. The communication hole 19 is provided between the intermediate cylinder 17 and the outermost cylinder 20 which is further surrounded by the outer peripheral side. The outermost tube portion 20 and the intermediate tube 17 are configured to slide forward and backward integrally with each other, and are connected to the external flow passage 21, and the base end inner peripheral side surface of the outermost tube portion 20 is a head body. 4 is screwed with a male screw cylinder 21 that is integrally provided in series.

Therefore, when the outermost tubular portion 20 is rotated through the same threaded portion, the integrally formed intermediate tube 17 slides back and forth integrally with the outermost tubular portion 20. Which is formed between the outermost cylinder portion 20 and the intermediate cylinder 17,
At the tip of the external flow passage 21, a heterogeneous water spout 22 such as a perforated plate is provided.
Is provided.

In the water sprinkling nozzle constructed as described above, the water flowing out from the grip cylinder 1 passes through the through hole 13 of the nozzle body 10.
Through the forward and backward positions of the intermediate cylinder 17, the water is primarily discharged through the nozzle port 23 in communication with the internal flow passage 18, and the relative position between the nozzle port 23 and the tip adjusting rod 12. Depending on the relationship, straight or mist-like adjustment can be performed.

Secondly, if the intermediate cylinder 17 is moved forward by rotating the outermost cylinder portion 20, the inner circumferences of the first seal member 14, the second seal member 15 and the intermediate cylinder 17 can be increased. At the seal position by the side surface, the through hole 13 of the nozzle body 10 and the communication hole 19 of the intermediate cylinder 17 communicate with each other and pass through the external flow passage 21, whereby water is discharged in a shower shape.

The gist of the present invention relates to the structure of the intermediate cylinder. That is, the intermediate cylinder 17 is divided into two parts, front and rear, as shown in FIG. 3, and the front-stage intermediate cylinder 17a is mainly configured to surround the outer peripheral side surface of the front part of the nozzle body 10, and its tip has a small size. Squeeze into the nozzle mouth 23 of
The tip adjusting rod portion 12 of the nozzle body 10 is slidably inserted into the nozzle opening 23.

The front part of the nozzle body 10 and the front intermediate cylinder 17
As shown in FIG. 4, a constant gap, that is, an internal flow gap 24, is formed between a and a. That is, as shown in FIGS. 4 and 6, the intermediate cylinder is formed with a number of thin ribs 25 arranged in parallel with each other with a constant gap.
The inner surface of the is closely attached to the first seal member 14.

The peripheral surface of the first seal member 14 is regulated by the ribs 25 of the front intermediate cylinder 17a, and the gap between the ribs constitutes the internal flow passage 18. Even if the seal member 14 is in a pressure-bonded state with the inner surface of the rib 25, the water is discharged through the gap between the ribs. Further, by providing the rib 25, it is possible to smoothly slide with the seal member provided on the outer peripheral side surface of the nozzle body 10, and it is possible to prevent wear and peeling of the seal member.

As shown in FIG. 5, the front end opening edge portion 26 of the rear intermediate cylinder 17b is constructed so as to be fitted and closely contacted with the inner peripheral side surface of the front intermediate cylinder, and as shown in FIG. The portion 26 is formed with a recess 27 that fits into the rib 25 provided on the front intermediate cylinder 17a.

A communication hole 19 that communicates with the through hole 13 of the nozzle body 10 and communicates with the external flow passage 21 is provided in the middle of the rear end intermediate cylinder 17b, and an umbrella is provided on the outer peripheral side surface of the communication hole. Shaped part 17c
The umbrella-shaped portion is connected to the inner peripheral side surface of the outermost tubular portion 20 and is configured to slide integrally.

Further, as shown in FIG. 4, the sliding portion 17d located between the tip opening edge portion 26 and the communication hole 19 is crimp-slipped with the seal member of the nozzle body 10 to cause internal flow passage 18 to flow. And the external flow passage 21 are switched, and the sliding portion 17d
On the inner peripheral surface of the rear intermediate cylinder continuously provided on the both sides of the communication hole 19, there are ridge portions 19b, and the inner surface of the ridge portion is configured to be crimped to the nozzle body 10. The communicating hole 19 has groove portions 19c at both ends thereof, and forms a protruding portion 19a which is sandwiched between the groove portions and protrudes toward the communicating hole side.

Further, when the front intermediate cylinder 17a and the rear intermediate cylinder 17b are fitted together as shown in FIG. 5, the ridges 19b of the rear intermediate cylinder 17b are axially aligned with the ribs 25 of the front intermediate cylinder 17a. Like the rib, it has a function of preventing wear of the seal member provided on the outer peripheral side surface of the nozzle body.

Further, an inclined surface 29 is formed from the inner peripheral surface of the projecting piece 28 formed by each concave portion 27 of the tip opening edge portion to the inner peripheral surface of the tip opening edge portion, and the inclined surface 29 is also formed.
Has a gradually expanding slope toward the tip as shown in FIG.

This is the first seal member 14 of the nozzle body 10.
Also, when the second seal member 15 and the inner peripheral side surface of the intermediate cylinder 17 slide, the sealing surface of the nozzle body 10 is formed so as to easily enter and retract into the rear intermediate cylinder 17b. is there.

Further, the sliding portion 17 on the inner peripheral surface of the rear intermediate cylinder 17b
The surface extending from d to the communication hole 19 also has a sloping surface 17e, and the sloping surface 17e has a gradually expanding slope toward the communication hole 19 as shown in FIG. Body
Contributes to 10 smooth entry and exit movements.

Further, in the concave portion 27 formed in the front end opening edge portion 26 of the rear intermediate cylinder 17b, a groove deeper than the concave portion 27 is further cut out at one corner end portion of the concave portion 27 as shown in FIG. Moreover, the notch groove 30 is provided at one corner end portion of each recess 27 adjacent to each other. Therefore, the notch groove 30 is specifically provided at both side ends of the staggered protruding pieces 28 among the protruding pieces 28. It is supposed to be.

As described above, by providing the notch groove 30 deeper than the recess 27, the nozzle body 10 can be slid forward and backward to form a through hole.
When operating 13 by switching between the internal flow passage 18 and the external flow passage 21, the cutout groove 30 is not changed to both the internal flow passage 18 and the external flow passage 21 immediately before complete switching. It will be slightly communicated with the flow path through the notch groove 30, and since the notch groove 30 will also partially connect to the next flow path while leaving the communication with the previous flow path, it is possible to rapidly switch the flow rate. Without changing the flow path smoothly and slowly,
The impact due to switching is reduced and the so-called water hammer phenomenon is prevented.

Further, both side ends of the communication hole 19 also have groove portions 19c cut in the front end direction of the rear intermediate cylinder 17b.
Similar to the cutout groove 30, the groove portion also has a role of preventing a sudden change in the flow rate when switching the flow paths.

[0039]

As described above, according to the sprinkling nozzle of the present invention, the seal member on the outer peripheral side surface of the nozzle body is provided with the inner peripheral side wall of the intermediate cylinder by providing the inner peripheral side surface of the front intermediate cylinder with a plurality of ribs. It is possible to smoothly move in and out even when sliding the seal member, especially when sliding the fitting joint portion, and it is possible to prevent wear and peeling of the seal member. Also,
It is also possible to provide a concave portion at the tip opening edge of the rear intermediate tube so as to be in close contact with the rib of the front intermediate tube, and to form a bevel from the tip opening over the inner peripheral surface from the tip opening edge to the nozzle body. Contributes to the smooth approach and retreat of the car.

Further, by providing a notch groove deeper than the recess at one corner end adjacent to each recess, the flow passage between the internal flow passage and the external flow passage can be smoothly performed, and the water hammer phenomenon can be prevented. It is possible to prevent water leakage from the seal part.

[Brief description of drawings]

FIG. 1 is a sectional view of a watering nozzle according to the present invention.

FIG. 2 is a sectional view of a water spray nozzle according to the present invention.

FIG. 3 is a perspective view showing an outer shape of a watering nozzle according to the present invention.

FIG. 4 is a sectional view of the intermediate cylinder in a disassembled state.

FIG. 5 is a cross-sectional view of the assembled intermediate cylinder.

6 is a view taken along the line AA in FIG.

FIG. 7 is a view taken along the line BB in FIG.

FIG. 8 is a sectional view taken along the line CC of FIG.

[Explanation of symbols]

 2 Hose connecting part 10 Nozzle body 13 Through hole 14 First sealing member 15 Second sealing member 17 Intermediate cylinder 17a Front intermediate cylinder 17b Rear intermediate cylinder 18 Inner flow passage 19 Communication hole 20 Outermost cylinder 21 External flow passage 22 Different dispersion Water port 23 Nozzle port 25 Rib 26 Tip opening edge 27 Recess 29 Sloping surface 30 Notched groove

Claims (3)

[Scope of utility model registration request] 1. A nozzle body (10) having a hollow end that closes the distal end of a hollow nozzle body (10) communicating with the hose connecting portion (2).
The inner flow passage (18) is held at a constant interval on the outer peripheral side of the so as to surround the intermediate cylinder (17), and the tip of the inner flow passage (18) is attached to the nozzle body.
The first seal member (14) and the second seal member (15) are communicated with the nozzle port (23) located at the end of (10), and are axially moved back and forth on the outer peripheral side surface of the nozzle body (10) in the middle thereof. Is provided
The members (14) and (15) can be crimped to the inner peripheral side surface of the intermediate cylinder (17), and the through hole (13) is formed on the outer peripheral side surface of the nozzle body (10) as the first seal member (14). An external flow passage is provided between the second seal member (15) and at an outer peripheral side of the intermediate cylinder (17) at regular intervals.
Holds (21) and surrounds the outermost cylinder (20), and the same flow passage (21)
The proximal end of the intermediate tube (17) is configured to communicate with the through hole (13) through the communication hole (19) by the forward movement of the intermediate tube (17), and the tip of the same flow passage (21) is located at the tip of the outermost tube portion (20). In the sprinkling nozzle that communicates with the formed different type water spouting port (22), the intermediate cylinder (17) is divided into a front intermediate cylinder (17a) and a rear intermediate cylinder (17b), and
A rib (25) is provided on the inner peripheral side surface of the front intermediate cylinder (17a) with a constant gap in the circumferential direction, and the rib (25) and the first seal member (1
4) and the ribs are in contact with each other, the gap between the ribs is the internal flow passage (18), and the tip opening edge of the rear intermediate cylinder (17b)
(26) has a recess (2) that fits with the rib (25) of the front intermediate cylinder (17a).
7), and when connecting the front intermediate cylinder (17a) and the rear intermediate cylinder (17b) together, the ribs (25) are fitted into the recesses (27) of the rear intermediate cylinder (17b) and integrated. A sprinkling nozzle configured to connect. 2. The inner peripheral surface of the front end opening edge portion (26) extending from the front end opening edge portion (26) of the rear intermediate cylinder (17b) to the vicinity thereof is formed as a tip end widening inclined surface (29). The watering nozzle described. 3. A notch groove (30) axially deeper than the depth of the recess is formed at the corner side end of the recess (27) formed in the front end opening edge (26) of the rear intermediate cylinder (17b). The watering nozzle according to claim 2, wherein