JP3220296B2 - Sprinkler nozzle breaker structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler nozzle breaker structure.

[0002]

2. Description of the Related Art Conventionally, in a nozzle portion of a sprinkler, an arm is integrally connected to a power nozzle main body, a breaker pin is erected at the end of the arm, and a breaker pin is interposed in a direction of jetting water from the nozzle. It is configured so that the water bundle can be crushed to spray water uniformly.

[0003]

However, the position of the breaker pin is determined in advance by integrally connecting the arms, so that the direction in which the water is scattered is constant, and the change and adjustment cannot be performed. Also, since the arm is integrally connected to the nozzle body, the manufacturing cost is high, and the nozzle has a disadvantage that it is not easy to attach and detach the nozzle,
Furthermore, since the nozzle body is attached to the water pipe of the sprinkler using the screw formed on the base, the attachment / detachment is complicated, and the maintenance work such as nozzle clogging is inconvenient. I was

[0004]

According to the present invention, a water supply pipe buried in the ground is provided with a lower end of a casing of a sprinkler in communication with the water supply pipe, and the main water supply pipe is housed in the casing in a vertically movable manner. A sprinkler configured so that a nozzle pipe having a nozzle can be freely rotatably fitted to it, and water is supplied while raising the main water supply pipe and rotating the nozzle pipe by the water supply pressure from the water supply pipe, so that a certain range of watering work can be performed. In the nozzle, the engagement ring of the breaker arm base end of the synthetic resin material is rotatably mounted on the nozzle, and the standing position of the breaker pin at the end of the breaker arm is changed by adjusting the rotation position of the base end of the breaker arm,
It is an object of the present invention to provide a nozzle breaker structure of a sprinkler configured to change a direction of crushing and spraying of a water flux from a nozzle.

Further, according to the present invention, the base end of the nozzle can be freely inserted into and removed from the nozzle pipe, and when the nozzle is inserted into the nozzle pipe, the engagement ring of the breaker arm made of a synthetic resin material is connected to the nozzle. It is configured to engage with the notch groove of the pipe peripheral wall and the annular groove of the nozzle peripheral wall to perform continuous fixing of the nozzle and the nozzle pipe.

[0006]

According to the present invention, since the engagement ring of the breaker arm made of a synthetic resin material is rotatably mounted on the nozzle, if the arm is rotated to adjust the position, the breaker pin at the tip of the breaker arm stands upright. The installation direction changes, and the direction of crushing and spraying the water bundle from the nozzle can be easily changed.

Further, since the nozzle and the nozzle paphie can be connected and fixed using the engagement ring of the breaker arm, even if the nozzle is clogged or the like, the nozzle can be easily removed and mounted, thereby facilitating maintenance work. Become.

[0008] In particular, the rotation position of the breaker arm can be adjusted via an engagement ring so that the sprinkled sprinkler can be rotated upward once, for example, by adjusting the rotation so that the sprinkler is directed upward. This has the effect of preventing the danger of, for example, sown seeds being washed away without direct spraying of water.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional front view of a sprinkler having a detachable structure according to the present invention.

In the casing 1 of the sprinkler A, the upper half 1-1 has a larger diameter than the lower half 1-2, and a step 2 is formed at the boundary, and the upper edge of the casing is at the same level as the ground surface. Buried underground.

A sprinkler body B is housed in the casing 1, and an opening 12 at the lower end of the casing 1 is screwed and connected to a water supply pipe C buried underground.

The sprinkler body B includes a fixing mechanism D fixed to the casing 1 and an elevating mechanism E that is partially fitted to the fixing mechanism D and moves up and down.

The fixing mechanism D is provided in the lower half 1- of the casing 1.
2 and a bolt 4 on the step 2 formed in the middle of the casing 1.
And a guide cylinder 5 connected to the tip of the peripheral flange 3 fixedly provided through the peripheral flange 3.

The lifting mechanism E, which is partially fitted to the fixing mechanism D so as to be movable up and down, is constructed as follows.

That is, the elevating mechanism E has a main water supply pipe 6 formed at a lower portion thereof, and a detachable pipe M is provided at an upper portion of the main water supply pipe 6 so that the detachable pipe M can be engaged with and disengaged from the upper portion of the main water supply pipe 6 by rotation. The rotating pipe 7 is rotatably and loosely fitted in the detachable pipe M.
A nozzle 10 having a rotation mechanism 9 is continuously provided at the upper end via a nozzle pipe 8.

Next, the structure of the lifting mechanism E will be described.

The main water supply pipe 6 is provided with a water pressure valve 11 at the lower end, and the water pressure valve 11 can be pressed into the opening 12 at the lower end of the casing 1 from the inside. A water inlet 13 is provided at the lower peripheral edge of 6, and pressurized water from the water supply pipe C is opened to the water pressure valve 11 by water pressure, and is sent from the water inlet 13 to the water supply pipe 6. Reference numeral 14 denotes a guide piece projecting from the outer peripheral edge of the lower end of the main water supply pipe 6, and reference numeral 15 denotes a concave groove configured to engage with the guide piece 14 to stop rotation and guide up and down. It is formed on the inner peripheral surface of the half part 1-2.

The main water supply pipe 6 is connected to the stepped portion 2 of the casing 1.
A seal member 16 made of an elastic material is interposed between the outer peripheral surface of the main water supply pipe 6 and the upper end edge of the guide tube 5. ing. Reference numeral 17 denotes a spring provided between the lower end of the main water supply pipe 6 and the guide cylinder 5.

A detachable pipe M is fitted into the upper inner peripheral surface of the main water supply pipe 6 so as to be freely engaged and disengaged by a rotation operation.

That is, on the upper end surface of the main water supply pipe 6,
Insertion recesses are provided on the left and right sides, and engagement grooves are formed in the inner peripheral wall below the upper end surface in communication with the insertion recesses.

An engaging projection 20 is provided on the peripheral wall of the detachable pipe M.
Are formed to protrude left and right, and are formed in a shape facing the insertion concave portion. Therefore, the detachable pipe M is connected to the main water supply pipe 6.
When the engagement protrusion 20 is inserted into the engagement groove, when the engagement protrusion 20 is inserted from the insertion recess of the main water supply pipe 6 and rotated by a predetermined angle, the engagement protrusion 20 is engaged with the engagement groove. The main water supply pipe 6 and the detachable pipe M move up and down integrally. On the other hand, when the detachable pipe M is removed from the main water supply pipe 6, the detachable pipe M is turned to the original position and engaged. If the projection 20 is returned to the position of the insertion recess and pulled up as it is, the detachable pipe M is pulled out of the main water supply pipe 6.

The detachable pipe M has a peripheral swelling portion 21 formed at the upper end above the engagement projection 20, and the lower end is mainly located between the lower surface of the swelling portion 21 and the upper end surface of the main water supply pipe 6. A rubber cap 22 fixed to the upper peripheral wall of the water supply pipe 6 is erected,
The rubber cap 22 urges the detachable pipe M upward to ensure the engagement between the engagement protrusion 20 and the engagement groove 19.

In this manner, the rotating pipe 7 is loosely fitted into the detachable pipe M, and a nozzle pipe 8 bent at a fixed angle is screwed and connected to the upper end thereof. , A nozzle 10 is provided, and a water spraying tool 26 is disposed in the spray direction of the nozzle 10, and the water spraying tool 26 is rotatably supported on the upper surface of the bent portion of the nozzle pipe 8. The pivot 2 of the rotating blade 27 is connected to the blade 27.
7 'is surrounded by a return spring 28 for urging the rotation in a certain direction, so that
When the fountain pressure is applied, a rotating torque is generated on the rotating blade 27 because the water contact surface is inclined, and the rotating blade 27 rotates by a certain angle against the bias of the return spring 28. The rotating blade 27 returns to the original position by the urging of the return spring 28.

In addition, a collision portion 29 which collides with the nozzle pipe 8 is provided in the middle of the rotary blade 27,
Can be freely contacted with the receiving piece 30 which is provided continuously.

Further, the sprinkler body B is provided with a rotation switching mechanism S for automatically switching the direction of rotation and performing reciprocating motion when rotated by a certain angle.

At the upper end of the pivot 27 'of the rotary blade 27,
A lid 31 for opening and closing the upper end opening of the casing 1 is detachably connected to the lid 31.

The sprinkler A configured as described above
The gist of the present invention is that a base end of a synthetic resin material breaker arm 32 is rotatably mounted at the tip of the nozzle 10 and a breaker pin 37 is erected at the tip of the arm 32, and that the nozzle pipe The nozzle 10 is fitted into the distal end portion 8-1 so that the nozzle 10 can be attached and detached with a single touch, and the nozzle 10 is prevented from being pulled out by a partially notched engaging ring 33 formed at the base end of the breaker arm 32. That's what I did.

The details will be described in detail below.
The tip is open, and the nozzle 10 can be freely inserted from the tip opening. Reference numeral 34 denotes an O-link provided on the outer peripheral wall of the base of the nozzle 10.

Further, on the outer peripheral wall of the tip 8-1 of the nozzle pipe 8, cutout grooves 35 are formed on the left and right sides so as to communicate with the inside of the nozzle pipe 8, and the outer peripheral wall of the nozzle 10 also has An annular groove is provided at a position opposite to the notch groove 35 of the nozzle pipe 8.
The cutout groove 35 and the annular groove 36 are configured to be aligned when the nozzle 10 is fitted into the nozzle pipe 8.

On the other hand, a breaker arm 32 having a breaker pin 37 erected at a tip thereof is formed of a flexible synthetic resin separately from the nozzle 10, and a breaker pin 37 is provided at the tip thereof to adjust the vertical position. It is erected.

At the base end of the breaker arm 32, a partially notched engaging ring 33 is integrally formed of a flexible synthetic resin. The engaging ring 33 is formed with a notched groove 35 of the nozzle pipe 8,
It is configured to be fitted and engaged in common with the annular groove 36 of the nozzle 30.

Further, a receiving piece 39 which is in contact with the outer peripheral surface of the nozzle pipe 8 is formed in a substantially semi-arc shape before and after the engagement ring 33.

Numeral 40 is a screw formed with a breaker pin 37 at its tip, and a spring 41 for preventing loosening is provided between the screw head and the lower surface of the breaker arm 32.

Therefore, when mounting the breaker arm 32, first, the nozzle 10 is fitted through the opening of the nozzle pipe 8, and then the breaker arm is inserted into the cutout groove 35 of the nozzle pipe 8 and the annular groove 36 of the nozzle 10. 32 engagement rings 33 are fitted. The engagement ring 33 makes use of the characteristics of a flexible synthetic resin material, and utilizes a cutout formed in a part of the ring,
The notch groove 35 and the annular groove 36 can be easily fitted.

In this state, the engagement ring 33 is fitted into the notch groove 35 and the annular groove 36, and the respective grooves are engaged via the engagement ring 33. Never be removed from

In addition, by rotating the engagement ring 33 at the engagement portion, the standing direction of the breaker pin 37 can be changed via the breaker arm 32, and the watering direction can be changed.

FIGS. 5 to 9 show another embodiment of the nozzle 10. In this embodiment, a male screw 42 is formed at the base end of the nozzle 10 and can be screwed to the nozzle pipe 8. The tip of the nozzle 10 forms a hexagonal bolt head 43, and a notched ring groove 44 is formed in the center of the peripheral wall of the bolt head.

The breaker arm 32 can be mounted by fitting the engagement ring 33 of the breaker arm 32 into the notched ring groove 44 of the nozzle 10.

Moreover, the receiving pieces 38, 39 before and after the engagement link 33
Of the hexagonal bolt head has a three-sided shape so as to abut against three sides of the hexagonal bolt head.

Accordingly, by rotating the engagement ring 33 in the notched ring groove 44, the standing position of the breaker pin 37 at the tip of the breaker arm 32 can be changed to change the water spray direction.

[Brief description of the drawings]

FIG. 1 is an overall sectional view of a sprinkler having a nozzle breaker structure of a sprinkler of the present invention.

FIG. 2 is an exploded view of the main part.

FIG. 3 is a side view showing a breaker arm in the structure of the present invention.

FIG. 4 is a front view of the same.

FIG. 5 is a side view showing a nozzle structure of another embodiment.

FIG. 6 is a cross-sectional view taken along the line II of FIG. 5;

FIG. 7 is a bottom view of the same.

FIG. 8 is a front view of the same.

FIG. 9 is a sectional view taken along the line II-II in FIG. 8;

[Explanation of symbols]

 A Sprinkler 8 Nozzle pipe 10 Nozzle 32 Breaker arm 33 Engagement ring 35 Notch groove 36 Annular groove 37 Breaker pin

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshihisa Ono 1-32 Chaya-cho, Kita-ku, Osaka-shi, Osaka Inside Yanmar Agricultural Machinery Co., Ltd. Inside Kyoritsu Metal Industry Co., Ltd. (72) Inventor Tokuaki Nakamura 37, Taiheidai, Satsuo-cho, Katsuta-gun, Okayama Prefecture Inside Kyoritsu Metal Industry Co., Ltd. (56) References JP-A-59-349 (JP, A) JP-A-50-145917 (JP, A) Full-scale production 56-17959 (JP, U) Real-life production 62 157566 (JP, U) Actually open 57-99743 (JP, U) Actually open 57-131859 (JP, U) Actually open 52-156312 (JP, U) (58) Fields investigated (Int. . ^7, DB name) B05B 3/00 - 3/18

Claims (2)

(57) [Claims] 1. A lower end of a casing (1) of a sprinkler (A) is communicatively connected to a water pipe (C) buried in the ground, and a main water pipe (16) is housed in the casing (1) in a vertically movable manner. ,
A nozzle pipe (8) having a nozzle (10) at the tip is freely rotatably fitted into the main water supply pipe (16), and the water supply pressure from the water supply pipe (C) raises the main water supply pipe (16) and raises the nozzle. In a sprinkler configured to perform water supply while rotating the pipe (18) and perform a certain range of watering work, the nozzle (10) is fitted with a breaker arm (32) made of synthetic resin material and an engagement ring (33) at the base end. Is rotatably mounted, and by changing the rotational position of the base end of the breaker arm (32), the standing direction of the breaker pin (37) at the tip of the arm (32) is changed, and the nozzle (1
A nozzle breaker structure of a sprinkler configured to change the direction of crushing and sprinkling of a water bundle from 0). 2. The base of the nozzle (10) is a nozzle pipe (8).
When the nozzle (10) is inserted into the nozzle pipe (8), the engagement ring (33) of the breaker arm (32) made of synthetic resin is connected to the nozzle pipe (8).
The nozzle (10) is configured to engage with the notch groove (35) of the peripheral wall and the annular groove (36) of the peripheral wall to perform continuous fixing of the nozzle (10) and the nozzle pipe (8). 2. The sprinkler nozzle breaker structure of claim 1.