JPH11190441A - Air valve with faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate operation of a faucet, to reduce the size thereof, and beside to decrease the number of part items. SOLUTION: A faucet 9 comprises a water supply pipe 21 connected to a water supply hole 10 formed through the side wall of the valve casing 2 of an air valve 1; a ball valve 23 rotatably incorporated through the water supply pipe 21; and a discharge pipe 24 rotatably and watertightly connected to the opening end part of the supply water pipe 21. The discharge pipe is coupled to the ball valve 23, and an engaging protrusion part 37 is protruded from the outer peripheral surface of the discharge pipe 24. Through rotational operation of an operation rod disengageably engaged with the engaging protrusion part 37, the discharge pipe 24 is rotated forward and reversed and this way opens and closes the ball valve 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air valve with a water tap provided in, for example, water supply and sewerage.

[0002]

2. Description of the Related Art FIG. 4 shows an example of this type of air valve with a water tap. This is because a communication port 3 formed at the lower end of the valve box 2 of the air valve 1 is connected to a pipe (not shown) such as water and sewage, and a guide cylinder 4 provided in the valve box 2.
A floating valve body 6 for opening and closing a large air hole 5 formed in an upper portion of the valve box 2 and a float valve body 8 for opening and closing a small air hole 7 formed in a central portion of the floating valve body 6. Are disposed so as to be able to move up and down, and a water tap 9 provided on a side surface of the valve box 2 is
A substantially L-shaped water supply pipe 11 connected to a water supply hole 10 penetrating through a side wall of the water supply pipe, and an operation lever 12 at an open end of the water supply pipe 11
And a discharge pipe 14 connected through a ball valve 13. In FIG. 4, reference numeral 15 denotes a maintenance valve provided in the valve box 2. The maintenance valve 15 reciprocates around a rotation shaft 16 so as to come into contact with and separate from a valve seat 3 a provided on a peripheral portion of the communication port 3. Thus, the communication port 3 is opened and closed. Note that 17
Is a cover covering the large air hole 5, and 18 is a water supply hose connected to the discharge port 14a of the discharge pipe 14.

In the above configuration, the maintenance valve 15 is opened while the ball valve 13 is closed (see the solid line in FIG. 4).
Then, the tap water flows into the valve box 2 through the communication port 3 from pipes such as water supply and sewage, so that the large air hole 5 is closed by the floating valve element 6 as shown by a virtual line in FIG. At the same time, the small air hole 7 is closed by the float valve body 8, and in this closed state, air accumulates in the valve box 2, the water level in the valve box 2 drops, and the float valve body 8 has a smaller force than the force for pushing up the float valve body 8. When the weight of the valve body 8 becomes larger, the float valve body 8 is lowered and separated from the small air hole 7, whereby the inside of the valve box 2 communicates with the outside air through the small air hole 7 and the floating valve body 6 is lowered, and the air accumulated in the valve box 2 is automatically discharged.

When the water tap 9 is used for extinguishing a fire, a cap (not shown) covering the discharge port 14a is removed, and a water supply hose 18 is connected to the discharge port 14a.
As shown in FIG. 4, the ball valve 13 may be opened by rotating the operation lever 12 by 90 degrees.

When the maintenance of the air valve 1 and the water tap 9 is performed, the communication port 3 is closed by the maintenance valve 15 (see the phantom line in FIG. 4) so that the tap water does not flow into the valve box 2. .

[0006]

In the above-mentioned conventional configuration,
When the hydrant 9 is used, it is necessary to enter a narrow space such as a manhole where the air valve 1 is installed and operate the operation lever 12 to open and close the ball valve 13, and the operation is troublesome. It is troublesome. Further, since the ball valve 13 is interposed between the water supply pipe 11 and the discharge pipe 14, the size of the water tap 9 becomes large and the exclusive space becomes large. Furthermore, the number of parts is large and the production cost is high.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an air valve with a water tap which can be easily operated and miniaturized, and has a reduced number of parts.

[0008]

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 is provided in a valve box connected to a pipe.
A floating valve element for opening and closing a large air hole formed in an upper portion of the valve box, and a float valve element for opening and closing a small air hole formed in a central portion of the floating valve element are arranged to be able to move up and down, An air valve with a water tap having a water tap connected to a water feed hole penetrating through a side wall of the valve box, wherein the water tap is provided with a water supply pipe connected to the water supply hole, and a ball valve rotatably incorporated in the water supply pipe. And a discharge pipe rotatably connected to the open end of the water supply pipe in a watertight manner, the discharge pipe being connected to the ball valve.

In the above configuration, when a water tap is used, a water supply hose may be connected to the discharge pipe, and then the discharge pipe may be rotated to open the ball valve.
The ball valve may be closed by operating the discharge pipe in the reverse direction.

In this case, the ball valve can be opened and closed only by rotating the discharge pipe from above, and the ball valve is operated by entering into a narrow space such as a manhole where an air valve is installed as in the related art. There is no need to operate the faucet easily. Further, since the ball valve is incorporated in the water supply pipe, the size of the water tap can be reduced. Further, since the discharge pipe also serves as the operation means of the ball valve, the number of parts is small and the production cost can be reduced.

According to a second aspect of the present invention, in the first aspect of the present invention, an engagement projection is provided on an outer peripheral surface of the discharge pipe so as to engage with the engagement projection in a detachable manner. The ball valve is opened and closed by rotating the discharge rod forward and reverse by rotating the operating rod.

According to the above configuration, even when the air valve is installed in a deep space such as a manhole, the operation rod is inserted into the space from the outside and engaged with the engaging projection of the discharge pipe to rotate. By operating, the ball valve can be easily opened and closed.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an air valve with a water tap according to an embodiment of the present invention.
The water supply pipe 21 includes a substantially L-shaped water supply pipe 21, a ball valve 23 incorporated in the water supply pipe 21, and a discharge pipe 24 rotatably connected to the open end of the water supply pipe 21 in a watertight manner. The same reference numerals as in the conventional example shown in FIG. 4 denote the same parts in the configuration other than the above, and a description thereof will be omitted.

As shown in FIG. 1, the water supply pipe 21 is connected to a water supply pipe main body 21a and a ball valve insertion hole 25 formed in a lower side surface of the water supply pipe main body 21a by a fastener 26 such as a bolt and a nut. The connection pipe 21b is fixed to the side wall of the valve box 2 by a fixing member 27 such as a bolt and a nut, and communicates with the water supply hole 10 of the valve box 2.

As shown in FIGS. 1 and 2, the ball valve 23 is rotatably incorporated into a corner portion of the water supply pipe 21 through a pair of left and right rubber support rings 29, and is substantially formed from the upper surface to the side surface. An L-shaped communication passage 23a is formed through the water supply pipe main body 21a and the connection pipe 21b by rotating the ball valve 23 by 90 ° about the vertical axis O from the open state shown in FIG. Is shut off and closed.

As shown in FIGS. 1 and 2, the discharge pipe 24 has a lower portion inserted into the water supply pipe main body 21a and a projection 30 projecting from the lower surface thereof being recessed into the upper surface of the ball valve 23. By fitting into the recess 31, it is connected to the ball valve 23, and a flange 24 a protruding from the center of the outer peripheral surface of the discharge pipe 24 is opened and closed by a pair of upper and lower bearings 32. The opening end is rotatably held by a ring-shaped holding frame 34 fastened by a fastening tool 33 such as a bolt or a nut. Further, an O-ring is provided between the holding frame 34 and the water supply pipe main body 21 a and the discharge pipe 24. The discharge pipe 24 is rotatably connected to the water supply pipe main body 21a in a watertight manner by interposing a watertight material 35 such as the watertight material.

As shown in FIGS. 1 and 2, a split ring 36 is externally fitted on the upper part of the discharge pipe 24, and a screw penetrates the ring 36 at a circumferential interval of 180 °. By screwing the threaded portions of the pair of engagement projections 37 into the holes, a pair of engagement projections 37 are protruded from the outer peripheral surface of the ring 36, and integrated with the base end of each engagement projection 37. A pair of engaging projections 37 is formed by fitting a pin 37a projecting and projecting inward from the inner peripheral surface of the ring 36 into a hole formed on the outer peripheral surface of the discharge pipe 24.
Through the discharge pipe 24.

In FIG. 3, reference numeral 39 denotes an operation rod, which is an operation frame 39a which is curved in a substantially U-shape, and which extends upward from the center of the operation frame 39a and whose upper portion is located substantially at the center of the operation frame 39a. A main body 39b that extends from the upper end of the main body, and a grip portion 39c that extends to both left and right sides. An engaging recess 40 is formed by bending both ends of the operation frame 30a in an arc shape.
After the engagement recesses 40 are engaged with the engagement protrusions 37, the ball valve 23 is opened and closed via the discharge pipe 24 by grasping the grasping portion 39c and rotating the operation rod 39 forward and backward. It is supposed to be.

In the above configuration, when the water tap 9 is used for fire extinguishing or the like, a cap (not shown) covering the discharge port 24a of the discharge pipe 24 is removed and the discharge port 24a is removed.
To the water supply hose 18 (see FIG. 3), and then, after engaging the engaging recess 40 of the operating rod 39 with the engaging projection 37,
The ball valve 23 may be rotated through the discharge pipe 24 by 90 ° by gripping the grip portion 39c and rotating the operation rod 39. Thereby, as shown in FIG. 1, the ball valve 23 is opened, and water is supplied to the water supply hose 18 from the pipe such as water supply via the valve box 2 and the water tap 9.
After use, the ball valve 2 is operated by the operation rod 39 in the reverse order to the above.
3 may be closed.

According to the above configuration, even when the air valve 1 is installed in a deep space such as a manhole, the operation rod 39 is inserted into the space from the outside to engage with the engaging projection 37 of the discharge pipe 24. The ball valve 23 can be easily opened and closed by the combined rotation operation, and it is necessary to operate the ball valve 23 by entering a narrow space such as a manhole where the air valve 1 is installed as in the related art. No, hydrant 9
Operation is easy. The ball valve 23 is connected to the water supply pipe 21.
The water faucet 9 can be reduced in size because it is incorporated in the inside. Further, since the discharge pipe 24 also serves as the operation means of the ball valve 23, the number of parts is small, and the manufacturing cost can be reduced.

[0021]

According to the first aspect of the present invention, the ball valve can be opened and closed only by rotating the discharge pipe from above, and a narrow space such as a manhole where an air valve is installed as in the prior art. There is no need to enter the inside and operate the ball valve, and the operation of the water tap is easy. Further, since the ball valve is incorporated in the water supply pipe, the size of the water tap can be reduced. Further, since the discharge pipe also serves as the operation means of the ball valve, the number of parts is small and the production cost can be reduced.

According to the second aspect of the present invention, even when the air valve is installed in a deep space such as a manhole, the operating rod is inserted into the space from the outside to engage with the engaging projection of the discharge pipe. By performing the rotation operation together, the ball valve can be easily opened and closed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an air valve with a water tap according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part of the water tap.

FIG. 3 is a perspective view illustrating an operation procedure of the water tap.

FIG. 4 is a longitudinal sectional view showing a conventional example.

[Explanation of symbols]

 2 valve box 5 large air hole 6 idle valve 7 small air hole 8 float valve 9 water tap 10 water supply hole 21 water supply pipe 23 ball valve 24 discharge pipe 37 engagement projection 39 operating rod

Claims (2)

[Claims] 1. A floating valve body for opening and closing a large air hole formed in an upper part of the valve box in a valve box connected to a pipe, and a small air hole formed in a central portion of the floating valve body for opening and closing. An air valve with a water tap connected to a water supply hole penetrating through a side wall of the valve box, wherein the water supply tap is connected to the water supply hole. A pipe, a ball valve rotatably incorporated in the water supply pipe, and a discharge pipe rotatably connected to the open end of the water supply pipe in a watertight manner, wherein the discharge pipe is connected to the ball valve. An air valve with a water tap. 2. An engaging projection is projected from an outer peripheral surface of the discharge pipe, and an operating rod engaged with the engaging projection so as to be detachable is rotated to reverse the discharge pipe. The air valve with a water tap according to claim 1, wherein the ball valve is opened and closed by rotating the ball valve.