JP2606028Y2 - Irrigation hydrant - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an automatic and manual irrigation hydrant used for irrigating fields and the like.

[0002]

2. Description of the Related Art Conventionally, various water taps for irrigation have been developed and used for water supply to paddy fields. Among them, automatic and manual water taps are particularly preferred. Examples thereof are disclosed in Japanese Patent Publication No. 57-61377 and Japanese Utility Model Publication No. Sho 60-21962. The irrigation apparatus disclosed in the publication is provided with a float device and a water level control means as a set, and opens and closes a valve of a water tap by vertically moving the float device to automatically control the water level of a paddy field. . In some cases, when water is to be supplied to a paddy field manually, water can be supplied by operating a manual switching valve.

[0003]

However, in the above-mentioned irrigation apparatus, the water outlet is provided in a 360-degree direction, and the valve body is usually installed in a concrete protection box. If you wash your hands at best except for the water supply, or if the space in the protective box is wide, you can pump water out of the container and use it only for cleaning agricultural equipment and cultivators, and use paddy fields for field after harvesting is completed. There was a problem that irrigation could not be performed.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide an automatic and manual combined use irrigation water tap which can be used in various ways other than automatic water supply to paddy fields. It is to be.

[0005]

According to the present invention, there is provided an irrigation hydrant having the following structure.

An angle having an inlet passage, an outlet passage provided at right angles to the inlet passage, and a valve chamber provided between the inlet passage and the outlet passage so as to communicate with these passages. A valve-type valve body, a valve body held by a diaphragm or a piston and disposed vertically movably in the valve chamber, and a bonnet holding the diaphragm or the piston and forming a primary pressure chamber above the diaphragm or the piston. An L-shaped joint is provided at an end of the outlet passage, and a male screw is provided at an outer periphery of the end of the outlet passage via a stopper ring fitted into an annular groove provided at the outer periphery thereof. Combination of an automatic and manual irrigation hydrant, which is rotatably mounted by screwing a cap nut onto the part, and a set of hose receptacles to be attached to the end of the L-shaped joint From The hose receptacle is fixed by screwing a cap nut onto a male screw portion provided at the end of the L-shaped joint via a flange provided on the outer peripheral portion, and the outer peripheral portion faces forward. A cap nut is screwed into a male thread provided at the end of the L-shaped joint via a receiving port provided with an annular holding rib provided on the outer peripheral portion and having a reduced diameter, and a flange provided on the outer peripheral portion. The outer peripheral portion of the receiving bush and the outer peripheral portion of the receiving device mounted on the distal end portion of the receiving bush are respectively reduced in diameter toward the front, and an annular rib is provided on the outer peripheral portion of the receiving device. irrigation faucet characterized by comprising a receptacle being.

[0007]

[0008]

[0009]

The material of the irrigation hydrant in the present invention may be plastic or metal.

[0011]

According to the present invention, in the automatic and manual irrigation hydrant which is connected to the water level sensor and constitutes an automatic water supply device, particularly when the operation is switched to the manual operation, the hydrant is used in addition to the water supply in the fields. Water can be supplied and sprinkled to surrounding areas and relatively distant places.

A hose port is provided at the end of the L-shaped joint rotatably mounted at the end of the outlet of the water tap, and a hose corresponding thereto is connected to the hose port. Then, when the valve is opened, the L-shaped joint can rotate in the 360-degree direction, so that water can be supplied or sprinkled all around the water tap.

[0013] Therefore, in addition to being able to sprinkle water even when the paddy field after harvesting is used as a field, in addition to being able to supply or sprinkle water to a field, a vinyl house or an arboretum near the water tap, water for seedlings, agricultural chemicals, etc. It can also be used for replenishing water for seedling boxes of rice transplanters or for cleaning agricultural equipment and small trucks for transportation. When a fire hydrant hose is connected to the outlet, water can be supplied or sprayed to fields, vinyl houses, or arborets, etc., which are far away, and even fires can be extinguished in the vicinity of fields and houses when a fire occurs. Also available.

When the water tap is to be automatically operated, the hose and the hose port are detached from the L-shaped joint (there is no problem if the port is left attached). Switch to the side.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a first hose receptacle of the present invention.
It is a longitudinal cross-sectional view of the irrigation hydrant worn .

In FIG. 1, reference numeral 1 denotes an angle valve type valve main body, which has an inlet flow passage 2 defined by a partition wall 4 provided therein and an outlet flow passage provided in a direction perpendicular to the axis of the inlet flow passage 2. And a valve chamber 7 which is located between the two flow paths 2 and 3 and is arranged to communicate with the inlet flow path 2.
have. The partition 4 is provided with an opening 5 for communicating the inlet flow path 2 with the valve chamber 7, and the surrounding partition 4
Is provided with a frusto-conical valve seat 6 protruding upward.

Reference numeral 8 denotes a valve body, which is located opposite to the opening 5,
An upper portion is fixed to a lower end portion of a valve shaft 10 held by a diaphragm 9 by a nut or the like, and is disposed so as to be able to move up and down in the valve chamber 7.

Reference numeral 11 denotes a bonnet, which is located above the valve chamber 7 and clamps and fixes the diaphragm 9 to a flange 13 above the valve body 1 via a support 12 holding a valve stem 10. A stroke limiter 14 having a handle 15 fixed to the upper end thereof, which slidably fits and holds the valve shaft 10 in the center of the bonnet 11, can penetrate a metal fitting 16 embedded in the bonnet 11. , And forms a primary pressure chamber 17 with the diaphragm 9.

Reference numeral 18 denotes an L-shaped joint attached to the end of the outlet channel 3. One end of the joint 18 is slidably fitted to the end via an O-ring 19 fitted in an annular groove provided in the outer peripheral portion thereof, and a stopper ring fitted in the same manner. The cap nut 21 is screwed onto a male screw portion provided on the outer peripheral portion of the end of the outlet flow path 3 via the fixing member 20 so as to be rotatably fixed.

Reference numeral 22 denotes a first hose socket mounted on the other side of the L-shaped joint 18. The receiving port 22 is slidably fitted to the joint 18 via an O-ring 23 fitted to the outer peripheral portion thereof, and further has a flange portion 24 provided on the outer peripheral portion.
Is brought into contact with the end face of the joint 18, and through the flange portion 24,
The joint 18 is fixed by screwing a cap nut 25 to a male screw portion provided on the outer periphery of the end of the joint 18.

An outer peripheral portion of the receiving port 22 following the flange portion 24 has a shape whose diameter is reduced toward the front, and an annular holding rib 26 is further provided on the reduced outer peripheral portion. Have been. The holding rib 26 is for preventing a hose 27 (indicated by a dotted line) from coming off, and it is usually preferable to provide a plurality of the holding ribs.

FIG. 2 shows a second hose receptacle of the present invention.
It is a longitudinal cross-sectional view of the irrigation hydrant worn . The only difference from FIG. 1 is the hose receptacle, so only this portion will be described.

[0023] The second hose socket 28 is screwed into the distal end and the socket bush 29, a hose 31 (shown in dotted line) and a receptacle 30 for the mounting. The hose receptacle 28 has a structure suitably used for a hose having a smaller diameter than that of the first hose receptacle .

The receiving bush 29 is fitted on one end to the end of the L-shaped joint 18 via an O-ring 32 fitted in an annular groove provided in the outer peripheral portion thereof. Is brought into contact with the end surface of the L-shaped joint 18, and the cap nut 34 is screwed into the male screw portion provided on the outer peripheral portion of the end of the L-shaped joint 18 via the flange 33. It is fixed by that. The other side continuous with the flange portion 33 has a shape in which the outer peripheral portion is reduced in diameter toward the front, and the outer peripheral portion is reduced in diameter toward the front at the front end portion, and the outer peripheral portion is reduced in diameter. A receiving member 30 provided with an annular holding rib 35 is screwed.

The inner peripheral portion of the receiving bush 29 is provided with a tapered flow path adapted to the shape of the outer peripheral portion thereof.
The water runs out smoothly.

FIG. 3 shows a third hose socket of the present invention.
It is a longitudinal cross-sectional view of the irrigated water tap. Fire hydrant hose outlet 3 known as the Matino type as the third hose outlet
6 is used. As described above, only the hose port will be described.

One end of the third hose socket 36 is fixed to the inner peripheral surface of the end of the L-shaped joint 18 by adhesive fitting, and the outer peripheral portion of the unfitted portion has a fire hydrant hose. A base 37 for attachment / detachment (removal) is loosely fitted, and a stopper 38 for preventing the base 37 from being detached is provided at a front end portion of the outer periphery of the unfitted portion.

The hoses described above are connected to corresponding hoses, and are selectively used according to the purpose.

That is, the type shown in FIG. 1 is used when a relatively large amount of water is required, that is, used for supplying water to a field or other fields using paddy fields after rice harvesting or for watering agrochemicals, and the type shown in FIG. Water supply to gardens, watering, replenishment of seedlings and seedling boxes,
It is used for cleaning agricultural equipment and small trucks. The type shown in Fig. 3 has the same purpose as the type shown in Fig. 1, but it is excellent in that there is no danger of the hose coming off when supplying water. It has the feature that it can also be used. of course,
Needless to say, all three types can be suitably used for watering around the irrigation cock.

FIG. 4 shows a use state of the type shown in FIG. As described above, a hose is connected to the hose receptacle of the irrigation hydrant to be used mainly when the hydrant is switched to manual operation. Hereinafter, the manual and automatic switching mechanism of the water tap will be described based on the schematic diagram of the automatic water supply apparatus shown in FIG.

In the figure, reference numeral 39 denotes a manual switching valve which is normally mounted on the bonnet 11, but is partially shown in a conceptual view for easy understanding.

In the manual switching valve 39, the knob 40 is in the closed position 41 in the drawing. (Arrow position). In this state, the water pipe 44 and the water pipe 47 communicate with each other, and
Each of the 6,48 water pipes has a closed mechanism. Therefore, the water branched from the branch port 49 provided in the inlet flow path 2 is supplied to the primary pressure chamber 17 via the water guide pipes 44 and 47.
Will be introduced. As can be seen from the figure, the diaphragm 9 has a larger pressure receiving area than the valve body 8,
Is pushed down. That is, the valve element 8 contacts the valve seat 6, and the valve is closed. (The position indicated by the dotted line. Therefore, the figure shows a state where the valve body 8 is in the process of being lowered.)

On the other hand, when the open position 42 of the knob 40 of the switching valve 39 is moved to the position indicated by the arrow, the water pipes 47 and 48 communicate with each other, and the others are closed. Therefore, the valve element 8 is pushed up by the water pressure on the inlet flow path 2 side, and the water in the primary pressure chamber 17 is raised by the diaphragm 9 and the water guide pipes 47 and 4 are raised.
It is discharged out of the system via 8. That is, the valve is opened.

The opening and closing of the water tap for irrigation by a manual operation is performed as described above, and water supply and water sprinkling are performed by connecting the receiving port and the hose.

Next, when switching to automatic operation, the automatic position 43 of the knob 40 of the manual switching valve 39 may be moved to the position of the arrow.

In the case of automatic operation, FIG. 4 shows a state in which water is supplied to the paddy field from the outlet passage 3 and the atmosphere opening port 51 of the atmosphere opening valve 50 constituting the water level sensor. . If the water supply is further continued in this state, the float 53 reaches the upper limit B position from the position A in the drawing. In this state, since the valve 52 of the atmosphere release valve 50 closes the atmosphere release port 51, the water branched from the branch port 49 is introduced into the primary pressure chamber 17 via the water guide pipes 44, 45, 46, and 47. The valve is closed as described above.

Conversely, when the float 53 reaches the lower limit C position from the position B, the valve 52 of the air release valve 50 opens the air release port 51, so that the water in the primary pressure chamber 17 is discharged from the water pipe 4
The air is discharged outside the system from the atmosphere opening port 51 via the ports 6 and 45. As a result, the water pressure in the primary pressure chamber 17 decreases, the valve element 8 is pushed up by the water pressure on the inlet flow path 2 side, the valve is opened, and water supply starts from the outlet flow path 3 and the atmosphere opening port 51 in the same manner as described above. Is done. Automatic opening and closing of the irrigation hydrant is performed as described above.

There is no problem even if the hose port of the irrigation hydrant in the present invention is always attached, but it is preferable to remove the hose port in the case of automatic operation and to use the hose port in the case of manual operation. It is good to use for multipurpose by wearing.

[0039]

[Effects of the Invention] The following effects can be obtained by connecting a hose to the irrigation hydrant of the present invention having the structure described above and using it manually.

The L-shaped joint attached to the end of the outlet of the irrigation hydrant is rotatable so that it can rotate in a 360-degree direction so that water can be supplied or sprinkled all around the hydrant. Therefore, it is possible to supply water and water to a field using a paddy field after rice harvesting, a field near the water tap, a vinyl house or an arboretum, etc., as well as water for seedlings, water for agricultural chemicals, etc. Alternatively, it can also be used for cleaning agricultural equipment and small trucks. In addition, if a hose for a fire hydrant is connected, water can be supplied and sprinkled to fields, vinyl houses and arboretums far away, and it can also be used to extinguish fires in nearby fields and houses when a fire occurs. it can.

It goes without saying that, compared to the conventional product, an excellent effect that it can be used all year round regardless of the four seasons is obtained.

[Brief description of the drawings]

FIG. 1 shows a first hose socket for an irrigation hydrant of the present invention.
It is the longitudinal cross-sectional view which was mounted .

FIG. 2 is a longitudinal sectional view of the same, in which a second hose receptacle is mounted .

FIG. 3 is a longitudinal sectional view of the same, with a third hose receptacle attached .

FIG. 4 is a view showing a use state of the irrigation hydrant of FIG. 1;

FIG. 5 is a schematic longitudinal sectional view of a main part of an automatic water supply device including a water tap for irrigation and a water level sensor.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Angle valve type valve main body 2 ... Inlet flow path 3 ... Outlet flow path 7 ... Valve chamber 8 ... Valve element 9 ... Diaphragm 11 ... Bonnet 17 ... Primary pressure chamber 18 ... L-shaped joint 21 ... Cap nut 22 ... For hose Receiving port 26 ... Holding rib 27 ... Hose 29 ... Receiving bush 30 ... Receiving tool 34 ... Cap nut 35 ... Holding rib 36 ... Receiving port for fire hydrant hose 37 ... Receiving port 39 ... Manual switching valve

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-137170 (JP, U) JP-A-57-144463 (JP, U) JP-B-57-61377 (JP, B2) JP-B-60- 21962 (JP, Y2)

Claims (1)

(57) [Scope of request for utility model registration] An inlet channel (2), an outlet channel (3) provided in a direction perpendicular to the inlet channel, and a communication between the inlet channel and the outlet channel. An angle valve type valve body (1) having a provided valve chamber (7), and a valve element (8) held by a diaphragm (9) or a piston and arranged in the valve chamber (7) so as to be vertically movable. And a bonnet (11) holding the diaphragm or the piston and forming a primary pressure chamber (17) above the diaphragm or the piston, and the outlet flow path (3).
An L-shaped joint (18) is attached to an end of the outlet passage through a stopper ring (20) fitted in an annular groove provided in the outer peripheral portion thereof. By screwing a cap nut (21), an automatic and manual irrigation hydrant which is rotatably mounted and a set of hoses to be attached to the end of the L-shaped joint (18) The hose socket is provided with a cap nut (25) on a male screw portion provided at the end of the L-shaped joint (18) via a flange (24) provided on the outer peripheral portion. A receiving port (22) fixed by screwing and having an outer peripheral portion reduced in diameter toward the front and having an annular holding rib (26) provided on the outer peripheral portion; and a flange portion (33) provided on the outer peripheral portion. L through
It is fixed by screwing a cap nut (34) into a male screw portion provided at the end of the K-shaped joint (18), and is attached to the outer periphery of the receiving bush (29) and the tip of the receiving bush. this and the outer peripheral portion is composed of respectively receptacles (28) an annular rib (35) is provided on the outer peripheral portion of the receptacle is reduced in diameter toward the front (30) of the receptacle (30) <br / > A water tap for irrigation characterized by: