JPH0725247Y2 - Universal joint for spray nozzle - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is, for example, mounted on a spray liquid supply pipe such as a liquid supply pipe or a hose, and appropriately sprays a spray liquid such as water, liquid fertilizer, or chemical liquid. Attach the appropriate spray nozzle to the tip,
The spray liquid in the spray liquid supply pipe can be supplied to the spray nozzle, and the spray direction of the spray nozzle can be changed freely and the supply of the spray liquid to the spray nozzle can be blocked arbitrarily. Regarding fittings.

(Prior art) Conventionally, an appropriate spray nozzle for spraying an appropriate spray liquid such as a liquid fertilizer or a chemical liquid is directly attached to an appropriate spray liquid supply pipe body such as a liquid supply pipe or a hose by a screwing means or the like to supply the spray liquid. In most cases, the spray liquid in the pipe is supplied to the spray nozzle and is sprayed in a predetermined direction by the spray nozzle to spray the spray liquid.

Further, Japanese Utility Model Laid-Open No. 63-86861 discloses an intermediate joint device between a shower head and a hose, which has a spring and an annular packing placed in an upper recess of a joint body and abuts on the annular packing. A tightening nut fitted to the shower head supporting sphere is screwed into the joint body, and the shower head is connected via a screw tube attached to the upper portion of the shower head supporting sphere.

Further, Japanese Utility Model Publication No. 48-88758 discloses an air nozzle structure in a level detection device for fluids, lumps and the like.
This is a pressure-sensitive operating valve mechanism in which a rotating plug formed at the root of a thin tubular rotating contact tube is slidably supported in a valve box provided in an air pipe, and the granular particles in the tank The contact tube is rotated by the pressing force of the lump etc., and the facing position of the rotating plug in the valve box changes, so that the air discharge path that is always open is closed and the back pressure activates the pressure detector. is there.

(Problems to be Solved by the Invention) However, in the conventional spraying device, once the spraying nozzle is attached to the liquid supply pipe, there is a drawback that it is difficult to easily change the spraying direction of the spraying nozzle. Moreover, in order to stop the spraying of the spraying liquid from the spraying nozzles, it is necessary to stop the pump itself that continuously supplies the spraying liquid into the spraying liquid supply pipe and stop the spraying from all the spraying nozzles. There were difficulties.

Further, in the above-mentioned intermediate joint device between the shower head and the hose, although the orientation of the shower head can be easily changed, the ejection from the shower head can be stopped. Absent.

Further, in the above-mentioned air nozzle structure, although the air discharge passage is freely closed by using the rotating plug, the contact tube is in a predetermined direction with respect to the valve box. The air can be discharged only when (the center line of the contact tube matches the center line of the valve case), and the air cannot be discharged when the contact tube is tilted with respect to the valve case. Has become.

That is, in the present invention, in the universal joint for the spray nozzle of the spray device, the spray direction of the spray nozzle can be easily changed to any direction, and the spray liquid is continuously fed into the spray liquid supply pipe body. The present invention has been devised to provide a universal joint for a spraying nozzle with a simple structure, which can surely and easily stop spraying of a spraying liquid in any spraying nozzle individually without stopping.

(Means for Solving the Problems) Therefore, in order to achieve the above-mentioned problems, the present invention provides a joint base A1 that can be mounted on a spray liquid supply pipe 30 such as a liquid supply pipe or a hose, and a water or liquid fertilizer. An appropriate spraying nozzle B for spraying a spraying liquid such as a chemical liquid is formed so that it can be mounted on the nozzle mounting portion 15 at the tip end portion thereof, and a substantially spherical spherical portion 12 provided at the base end portion thereof is formed on the joint base A1. By being held, the joint base A1
It is equipped with a joint rocking body A2 which is mounted so that it can be rocked and swung freely.
A spraying liquid introducing passage 3 is formed through the joint base A1, a spraying liquid introducing passage 13 is formed through through the joint rocking body A2, and a spraying liquid introducing passage that appears on the surface of the spherical portion 12 is formed. 13 openings
14 is opened at a position appropriately separated from the center line of the swing base portion 10, a shaft portion 11 is provided between the nozzle mounting body portion 15 and the spherical portion 12 of the joint swing body A2, and the joint base body A1 and the joint swing portion are provided. A ring-shaped packing which is arranged between the moving body A2 and the spherical portion 12 so as to be in close contact with the surface of the spherical portion 12 and which surrounds the tip opening portion of the spray liquid introducing passage 3 of the joint base A1. 4 and the joint rocking body A2 is swung with respect to the joint base A1 in a predetermined swinging and swiveling state, the opening 14 on the surface of the spherical portion 12 goes beyond the portion surrounded by the packing 4 and surrounds the packing 4. It is arranged outside the part so that the communication state between the spray liquid introducing passage 13 of the joint rocking body A2 and the spray liquid introducing passage 3 of the joint base A1 is cut off, and the joint rocking body A2 has an opening. Appropriate display corresponding to the installation position of 14 is provided, and with this display as a mark, the spray liquid introduction passage 3 of the joint base A1 and the joint swing A2 of spraying liquid introducing path 13
A means for arranging so that the communication state with the opening 14 can be judged from the outside is adopted.

(Operation) Thus, in the universal joint A for the spray nozzle of the present invention, the joint base A1 is attached to the spray liquid supply pipe body 30 such as the liquid supply pipe or the hose, and the nozzle mounting body portion of the tip end of the joint rocking body A2. An appropriate spray nozzle B for spraying a spray liquid such as water, liquid fertilizer or a chemical liquid is attached to 15. Moreover, the joint rocking body A2 is mounted so as to be rockable with respect to the joint base A1 via the spherical portion 12 provided at the base end.

Further, the joint rocking body A2 has a substantially spherical spherical portion 12 provided at the base end portion thereof, which is held by the joint base body A1.
It can swing and turn with respect to A1. Moreover, the shaft portion 11 is
It is provided between the nozzle mounting body portion 15 and the spherical portion 12 of the joint rocking body A2.

Further, the spray liquid introducing passage 3 is formed through the joint base A1, the spray liquid introducing passage 13 is formed through the joint oscillator A2, and the surface of the spherical portion 12 of the joint oscillator A2 is formed. The opening portion 14 of the spray liquid introducing passage 13 that appears in FIG. 2 is arranged at a position appropriately separated from the center line of the swing base portion 10.

Further, the ring-shaped packing 4 is interposed between the joint base body A1 and the spherical portion 12 of the joint rocking body A2, and is arranged so as to be in close contact with the surface of the spherical portion 12 and to spread the joint base body A1. It is arranged so as to surround the tip opening portion of the liquid introduction path 3.

Then, the opening 14 on the surface of the spherical portion 12, when the joint rocking body A2 is swung with respect to the joint base A1 in a predetermined swinging state,
It is located outside the portion surrounded by the packing 4 beyond the portion surrounded by the packing 4. Then, the communication between the spray liquid introducing passage 13 of the joint rocking body A2 and the spray liquid introducing passage 3 of the joint base A1 is cut off, and the supply of the spray liquid from the spray liquid supply pipe 30 to the spray nozzle B is stopped. It

Further, the communication state between the spray liquid introducing passage 3 of the joint base A1 and the opening 14 of the spray liquid introducing passage 13 of the joint rocking body A2 is determined by the joint rocking body A2.
It is judged from the outside with an appropriate display corresponding to the arrangement position of the opening 14 provided in the.

(Example) Hereinafter, the present invention will be described with reference to illustrated examples.

In the figure, A shows a universal joint for a spray nozzle of the present invention, and this universal joint A for a spray nozzle has a male end at a base end portion so that it can be screwed to a spray liquid supply pipe body 30 such as a liquid supply pipe or a hose. A female threaded portion on which a joint base A1 having a threaded portion 2 and an appropriate spraying nozzle B for spraying a spraying liquid such as water, liquid fertilizer or a chemical liquid can be screwed.
A nozzle mounting body portion 15 having 16 is formed at the tip end portion, and a substantially spherical shaped spherical portion 12 provided at the base end portion thereof is held by the joint base body A1 so that the joint base body A1 swings and swivels. It consists of a joint oscillating body A2 that is freely mounted.

Then, the spraying liquid introducing passage 3 is formed in the joint base A1 so as to extend along the center line thereof, and the spraying liquid introducing passage 13 is formed in the joint rocking body A2 so as to extend substantially along the center line thereof. In addition to the above, the opening 14 of the spraying liquid introducing passage 13 that appears on the surface of the spherical portion 12 is opened at a position distant from the center line of the swinging base portion 10.

Moreover, between the joint base A1 and the spherical portion 12 of the joint rocking body A2, while being arranged in close contact with the surface of the spherical portion 12,
A ring-shaped packing 4 arranged so as to surround the tip end opening portion of the spray liquid introduction path 3 of the joint base A1 is interposed. That is, when the joint rocking body A2 is swung with respect to the joint base body A1 in a predetermined swinging and swiveling state, the opening on the surface of the spherical portion 12 is
14 is located outside the part surrounded by the packing 4 beyond the part surrounded by the packing 4, and the spraying liquid introduction path 13 of the joint rocking body A2 13
The connection state of the joint base A1 with the spray liquid introduction path 3 is blocked, and the spray liquid spraying can be stopped.
The opening 14 on the surface of the spherical portion 12 is provided with a packing 4 when the center line of the joint rocking body A2 coincides with the center line of the joint base A1.
It is formed so as to be located within the surrounding portion. That is,
When the center line of the joint rocking body A2 and the center line of the joint base A1 coincide with each other, the spray liquid introducing passages 3 and 13 are formed to be in communication with each other.

The joint base A1 is an attachment body 1 attached to the spray liquid supply pipe body 30.
And the spherical portion 12 of the joint rocking body A2 mounted on the mounting body 1
And a holding body 6 for holding the swinging and swinging freely. The mounting body 1 has a male screw portion 2 as a mounting means for attaching to the spray liquid supply pipe body 30 at its proximal end, and a male screw portion 5 as a mounting means for the holding body 6 at its distal end. The portion between the male screw portion 2 and the male screw portion 5 is formed in a substantially hexagonal shape. In addition, a spray liquid introducing passage 3 is bored in the center line portion of the mounting body 1, and a concave groove is formed in the front end surface portion of the male screw portion 5, and a packing 4 (for example, an O ring) is formed in the concave groove. Etc.) are mounted so that they can fit stably. By the way, the male screw portion 2 may be any one that can be securely attached to the spray liquid supply pipe 30 so that the spray liquid introduction passage 3 and the spray liquid supply pipe 30 are surely communicated with each other. It is not limited to, and can be freely set as appropriate.

Further, the holding body 6 has a substantially cylindrical shape as a whole, and a female screw portion 7 which is screwed into the male screw portion 5 of the mounting body 1 is provided on the inner peripheral surface of the base end and an opening is formed at the tip portion. A section 8 is provided. That is, the tip portion (packing 4) of the attachment body 1 and the holding body 6 (periphery of the opening 8) are configured to hold and hold the spherical portion 12 of the joint rocking body A2. The watertightness between the mounting body 1 and the spherical portion 12 is enhanced by utilizing the elastic force of the packing 4 that comes into close contact with the outer surface of the portion 12. still,
By arranging the spherical portion 12 of the joint rocking body A2 so as to directly contact the periphery of the opening 8 of the joint base A1, the joint rocking body A2
It is possible to set a large swing range until the shaft portion 11 of the contact portion 11 comes into contact with the peripheral edge of the opening portion 8, and it is possible to widen the change range of the spraying direction of the spray nozzle B, thereby improving the usability. .

The joint oscillating body A2 includes a oscillating base portion 10 having a crocodile spherical portion 12 at its proximal end and an axial shaft portion 11 at its distal end, and the oscillating base portion.
Securely attached to the tip of shaft 11 of 10 (screw or other means)
And a nozzle mounting body portion 15 to be formed. The shaft portion 11 of the swinging base portion 10 is formed, for example, in a truncated cone shape in which the tip gradually narrows from the base to the base, and the base end of the shaft 11 has a spherical spherical shape. The section 12 is continuously provided. By the way, the shaft portion 11 may be formed by forming the connecting portion with the spherical portion 12 to be relatively thin. That is, the shaft portion of the swing base portion 10
Reference numeral 11 may be formed so that the swinging range until the outer surface thereof abuts on the peripheral edge of the opening 8 can be set to be larger and the changing range of the ejection direction of the spray nozzle B can be set to be wider.

Further, the joint rocking body A2 (for example, the nozzle mounting body portion 15) is provided with an appropriate display corresponding to the position where the opening 14 is provided, and this display is used as a mark for the spraying liquid introduction passage 3 of the joint base A1 and the joint shaking. The communication state of the moving body A2 with the opening 14 of the spray liquid introduction path 13 is formed so that it can be determined from the outside.

Further, the nozzle mounting portion 15 is formed into a substantially bottomed hexagonal cylinder shape, the tip portion of the shaft portion 11 is fixed (screwed or other means) to the center of the bottom portion thereof, and a female screw is formed on the inner peripheral surface thereof. A part 16 is provided, and a packing 17 (for example, an O-ring or the like) is installed inside the bottom part. That is, the male screw portion 20 of the spray nozzle B is screwed into the female screw portion 16, and the packing 17 is interposed between the spray nozzle B and the nozzle mounting body portion 15 to disperse the spray nozzle B and the nozzle mounting body portion. Watertightness with 15 is improved. The joint rocking body A2 is, as shown in the drawing, a rocking base portion 10
The nozzle mounting body portion 15 and the nozzle mounting body portion 15 may be integrally formed, or the swing base portion 10 and the nozzle mounting body portion 15 may be separate bodies (not shown).

In the illustrated example, the spray nozzle B has a male threaded portion 20 at the base end thereof and a spray hole 21 at the center of the tip end thereof. It is possible to use the spray nozzle B having an appropriate structure according to the type, spray method, and the like. Moreover, the mounting means is not limited to the screwing means, and fitting means or other mounting means can be adopted.

By the way, the specific configuration of the universal joint A for the spray nozzle, the specific configuration of the joint base A1, the shape, the dimensions, the material, and the joint rocking body A2.
Specific configuration, shape, size, material, mounting means to the joint base A1, specific shape of the mounting body 1, placement position of the male screw portion 2,
The size of the spray liquid introducing passage 3, the arrangement state, the shape of the packing 4,
Dimensions, material, disposition position, disposition position of male screw part 5, shape, size, material of disposing body 6, disposition position of female screw part 7, size of opening 8, disposition position, swing base Specific shape, size, material of the part 10, shape and size of the shaft part 11, shape and size of the spherical part 12, size of the spray liquid introduction path 13, arrangement state, arrangement position of the opening 14, size, nozzle Specific shape of mounting body 15, female thread
The disposition position of 16, the shape, size, material, disposition position, etc. of the packing 17 are not limited to those shown in the drawings, and can be set freely as appropriate.

The universal joint A for the spray nozzle of the present invention is constructed as described above. Next, an example of its use will be described. First, the spray liquid supply pipe body 30 such as a liquid supply pipe or a hose is connected to the joint base A1. The universal joint A for the spray nozzle is screwed onto the male screw portion 2. And, in the female screw portion 16 of the joint rocking body A2,
An appropriate spraying nozzle B for spraying a spraying liquid such as water, liquid fertilizer or a chemical liquid is screwed onto the male screw portion 20. Then, the pump or the like is operated to continuously supply the spraying liquid into the spraying liquid supply pipe body 30, and the spraying liquid is supplied to the spraying liquid introducing passage 3 of the joint base A1,
It reaches the spray nozzle B through the spray liquid introduction passage 13 of the joint rocking body A2, and is sprayed from the spray hole 21 of the spray nozzle B. By the way, when changing the spraying direction of this spray liquid,
It is performed by swinging and turning A2 in a desired direction.

Further, when the joint rocking body A2 is set in a predetermined rocking and swiveling position (the joint rocking body A2 is swung in a predetermined rocking and swiveling state with respect to the joint base A1, and the opening 14 provided in the spherical portion 12 covers the packing 4 When it is beyond and is located outside the packing 4 surrounding part),
The communication between the sprayed liquid introducing passage 13 of the joint rocking body A2 and the sprayed liquid introducing passage 3 of the joint base A1 is blocked by the packing 4, and the spraying of the sprayed liquid is stopped. It should be noted that this stopped state is also judged from the outside by an appropriate display provided on the joint rocking body A2 so as to correspond to the position of the opening 14.

(Effect of the Invention) Therefore, the universal joint A for the spray nozzle of the present invention is a joint base A1 that can be mounted on the spray liquid supply pipe body 30 such as a liquid feed pipe or a hose.
And a suitable spray nozzle B for spraying spray liquid such as water, liquid fertilizer or chemical liquid is formed so that it can be mounted on the nozzle mounting portion 15 at the tip end portion thereof, and a substantially spherical spherical portion provided at the base end portion thereof. 12 includes a joint rocking body A2 that is mounted on the joint base A1 so as to swing and swivel by being held by the joint base A1. The spray liquid introducing passage 3 is formed in the joint base A1 in a penetrating manner. In the joint rocking body A2, the spray liquid introduction passage 13 is formed in a penetrating manner, and the opening 14 of the spray liquid introduction passage 13 exposed on the surface of the spherical portion 12 is formed.
Is opened at a position appropriately separated from the center line of the swing base portion 10, a shaft portion 11 is provided between the nozzle mounting body portion 15 and the spherical portion 12 of the joint swing body A2, and the joint base body A1 and the joint swing body are provided. A ring-shaped packing 4 is arranged between the spherical portion 12 of A2 and the spherical portion 12 so as to be in close contact with the surface of the spherical portion 12 and surrounds the tip opening portion of the spray liquid introducing passage 3 of the joint base A1. When the joint rocking body A2 is swung with respect to the joint base A1 in a predetermined swinging and swiveling state, the opening 14 on the surface of the spherical portion 12 exceeds the portion surrounded by the packing 4, and the packing 4 surrounding portion. It is arranged outside so that the communication state between the spray liquid introducing passage 13 of the joint rocking body A2 and the spray liquid introducing passage 3 of the joint base A1 is cut off, and the opening 14 is formed in the joint rocking body A2. The appropriate display corresponding to the installation position is provided, and with this display as a mark, the spray liquid introduction passage 3 of the joint base A1 and the joint rocker A2 spray liquid introduction path 13
Since the state of communication with the opening 14 can be determined from the outside, the jetting direction of the spray nozzle B can be easily changed to a desired direction only by swinging and turning the joint swinging body A2. Moreover, the joint base A1 can be easily mounted on the spray liquid supply pipe body 30 such as a liquid supply pipe or a hose, and the joint swing body A2 is sprayed with a spray liquid such as water, liquid fertilizer or a chemical liquid as appropriate. The nozzle B can be easily attached. Therefore, the joint rocker A2 of the spray nozzle B according to the spraying purpose
It will also be possible to easily install compatible with the.

In addition, by merely setting the joint rocking body A2 to the predetermined swinging and swiveling position, the spraying liquid can be reliably sprayed without stopping the pump or the like that continuously feeds the spraying liquid into the spray liquid supply pipe 30. In addition, the spraying can be stopped easily and the spraying of any spraying nozzle B among the plurality of spraying nozzles B can be selectively stopped.
It will be the best one with excellent usability.

Further, since the substantially spherical shaped spherical portion 12 provided at the base end portion is held by the joint base A1, the joint base A1 is swingably and rotatably mounted on the joint rocker A2. The swing operation of A2 can be performed smoothly and the joint swing body A2
Can be swung and swung in all directions with respect to the joint base A1.

Then, between the joint base A1 and the spherical portion 12 of the joint rocking body A2, while being arranged in close contact with the surface of the spherical portion 12,
Since the ring-shaped packing 4 arranged so as to surround the tip opening portion of the spray liquid introduction path 3 of the joint base A1 is interposed, the elastic force of the packing 4 itself is used to make the joint base A1.
The water tightness between the surface of the spherical portion 12 and the surface of the spherical portion 12 is enhanced. Moreover, the packing 4 exerts an appropriate frictional force, and the arbitrary rocking state of the joint rocking body A2 with respect to the joint base A1 can be reliably maintained.

Particularly, when the joint rocking body A2 is swung with respect to the joint base body A1 in a predetermined swinging and swiveling state, the opening 14 on the surface of the spherical portion 12 is located outside the portion surrounded by the packing 4 beyond the portion surrounded by the packing 4. Then, the spray liquid introduction passage 13 of the joint rocking body A2 and the joint base body
The connection state of A1 with the spray liquid introduction passage 3 is cut off, and further, the opening 14 of the spray liquid introduction passage 13 exposed on the surface of the spherical portion 12 of the joint rocking body A2 is connected to the swing base portion 10. Since the opening is made at a position distant from the center line of the joint base body, the joint swing body A2 is simply swung with respect to the joint base body A1, or
Just turn the joint rocker A2 with respect to A1, or
It is possible to position the opening 14 on the surface of the spherical portion 12 outside the surrounding portion of the packing 4 or inside the surrounding portion of the packing 4 simply by performing both swinging and swiveling of the joint rocking body A2. Like Moreover, by the turning operation of the joint rocking body A2, even if the tilting state of the joint rocking body A2 with respect to the joint base body A1 is the same, the spray liquid introducing passage 3 of the joint base body A1 and the spray liquid introducing passage 13 of the joint rocking body A2 are Can be in a communication state or can be in a closed state. That is, the ejection direction of the spray nozzle B can be easily changed to any direction, and the spray of the spray liquid can be easily stopped and restarted in that direction.

In addition, the joint rocking body A2 is provided with an appropriate display corresponding to the position where the opening 14 is disposed, and the joint base A1 is provided with this display as a mark.
Since the communication state between the spray liquid introducing passage 3 of FIG. 4 and the opening 14 of the spray liquid introducing passage 13 of the joint rocking body A2 can be judged from the outside, which direction should the joint rocking body A2 be rocked or swung? Since the opening 14 is located outside the surrounding portion of the packing 4, it can be easily determined from the outside whether or not the spraying of the spraying liquid can be stopped.

Further, since the shaft portion 11 is provided between the nozzle mounting body portion 15 and the spherical portion 12 of the joint rocking body A2, the joint rocking body A2
It becomes easier to swing the and the swing range can be set wider.

[Brief description of drawings]

The drawings illustrate the present invention, FIG. 1 is an exploded perspective view,
FIG. 2 is a vertical sectional front view, and FIG. 3 is a sectional view showing a usage state. A: Universal joint for spray nozzle, A1 ... Joint base, A2 ...
Joint rocker, 1 ... Mounting body, 2 ... Male screw part, 3 ... Spraying liquid introduction path, 4 ... Packing, 5 ... Male screw part, 6 ...
Holding body, 7 ... Female screw part, 8 ... Opening part, 10 ... Swing base part, 11 ... Shaft part, 12 ... Spherical part, 13 ... Spraying liquid introduction path, 14 ... Opening part , 15 Nozzle mounting part, 16 …… Female screw part, 17 …… Packing, B …… Spraying nozzle, 20 …… Male screw part, 21 …… Spraying hole, 30 …… Spraying liquid supply pipe.

Claims (1)

[Scope of utility model registration request] 1. A joint base that can be mounted on a spray liquid supply pipe such as a liquid supply pipe or a hose, and an appropriate spray nozzle for spraying a spray liquid such as water, liquid fertilizer, or a chemical liquid on the nozzle mounting portion at the tip thereof. A joint rocking body that is formed so that it can be mounted, and that a substantially spherical spherical portion that is provided at the base end portion of the joint base body is held by the joint base body so as to swing and swivel.
A sprinkling liquid introduction passage is formed through the joint base, a sprinkling liquid introduction passage is formed through through the joint rocker, and the opening of the sprinkling liquid introduction passage that appears on the surface of the spherical portion is shaken. The moving base portion is opened at a position appropriately separated from the center line, a shaft portion is provided between the nozzle mounting body portion and the spherical portion of the joint rocking body, and between the joint base body and the spherical portion of the joint rocking body, A ring-shaped packing, which is arranged so as to be in close contact with the surface of the spherical portion and surrounds the front end opening portion of the spray liquid introduction passage of the joint base, is interposed between the joint rocker and the joint base. When the swinging and swiveling state is set to a predetermined value, the opening on the surface of the spherical portion exceeds the portion surrounded by the packing and is located outside the packing surrounding portion, and the spraying liquid introduction path of the joint rocker and the sprinkling of the joint base Configured so that communication with the liquid introduction path is blocked, and A structure is provided in which an appropriate display corresponding to the position of the opening is provided, and the state of communication between the spraying liquid introducing passage of the joint base and the opening of the spraying liquid introducing passage of the joint rocker can be judged from the outside by using this display as a mark. A universal joint for spray nozzles that is characterized by