JPH09152057A - Faucet with function of preventing water hammer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a faucet which provides good water-hammer preventing and backflow preventing functions although of a compact structure. SOLUTION: This faucet has a hollow spindle 7 which is moved, by the rotation of a handle 3, in a direction for opening or closing a water course R and a floating piece 8 movably fitted to the spindle 7, with water-hammer preventing function members 5, 6 mounted in the handle 3 and with a water passage 10a formed in the floating piece 8 to communicate the water course R to the water-hammer preventing function member 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a faucet having a water hammer prevention function.

[0002]

2. Description of the Related Art Conventionally, when a faucet is connected to a washing machine through a hose or the like and water is flowed from the faucet side to the washing machine side, an electromagnetic valve or the like provided in the washing machine drastically cuts the water passage. There is a problem that a water hammer will occur in the waterway if the water flow is cut off, and if the upstream side of the waterway becomes negative pressure for some reason, a backflow will occur from the washing machine side. The appearance of a compact water faucet that can effectively prevent hitting has been desired.

[0003]

SUMMARY OF THE INVENTION The present invention was devised in view of the above problems of the prior art, and an object thereof is to provide a compact faucet capable of preventing a water hammer and a backflow. A first gist is a faucet including a hollow spindle that is moved in a direction of opening and closing a water channel by rotating a handle, and a floating piece that is movably inserted in the spindle. Means that a water hammer prevention function member is internally provided, and a water passage that connects the water passage side and the water hammer prevention function member side is formed in the floating piece. The second gist is that a plurality of opening holes communicating with the water passage are formed on the peripheral surface of the top portion of the floating piece. A third gist is that a vertical groove forming the water passage is formed on the outer circumference of the shaft of the floating piece. A fourth gist is a faucet provided with a spindle having a top at a tip which is moved in a direction of opening and closing a water channel by rotating a handle, wherein a water hammer prevention function member is provided inside the handle. In addition, a water passage that connects the water passage side and the water hammer prevention function member side is formed in the spindle.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a cross-sectional view of a faucet. A handle 3 is provided on the top of a faucet body 2 so as to be rotatable. In this example, the handle 3 has a cylindrical shape with a bottom. A case body 4 is inserted into the inner peripheral surface of the case body 4, and a rubber diaphragm 5 and a cushioning body 6 are provided inside the case body 4 so as to hang down from the handle 3. A spindle 7 is provided, and a male screw 7b on the outer periphery of the lower end of the spindle 7 is screwed into the faucet body 2 so that the spindle 7 can be vertically moved through the male screw 7b by rotating the handle 3. ing.

The spindle 7 is formed in a hollow shape, and a hollow passage 7a is formed inside in the vertical direction. A floating piece 8 is provided at the lower end of the spindle 7 so as to be vertically movable while being inserted into the hollow passage 7a. The lower end of the floating piece 8 is formed in the faucet body 2. The toilet seat portion 2a is removably contacted with the toilet seat portion 2a so that the water passage R in the faucet body 2 can be opened and closed. Further, a hose 11 is connected to the tip of the faucet body 2, and a connecting portion 12 is formed at the tip of the hose 11. The connecting portion 12 can be connected to, for example, a washing machine with one touch. A coupler cover 13 is provided on the outer circumference of so as to be able to cover it.

As shown in the sectional perspective view of FIG. 2, the floating top 8 in this embodiment is brought into contact with the toilet seat portion 2a and the water passage R.
It is composed of a top portion 9 that can be opened and closed, and a shaft portion 10 that extends upward from the center of the top portion 9, and in this example, four opening holes 9a are provided at equal intervals on the outer periphery of the top portion 9. A water passage 10a is formed in the shaft portion 10, and the openings 9a, 9a, 9a are formed in the water passage 10a so as to be in communication with each other. When the top 8 is movably attached to the spindle 7, the water passage 10a is in concentric communication with the hollow passage 7a of the spindle 7, and the opening hole 9a, the water passage 10a, and the hollow passage 7a are interposed. The water channel R side and the diaphragm 5 side are configured to communicate with each other.

In such a structure, the connecting portion 12
Is connected to an electric washing machine, the water passage R of the faucet 1 is opened, and water is flowing to the electric washing machine side. When the water passage R is suddenly closed by the electromagnetic valve of the electric washing machine, Although a water hammer occurs, in the present example, the water hammer generated passes through the water passage 10a from the four opening holes 9a, further propagates to the diaphragm 5 through the hollow passage 7a, the diaphragm 5 expands, and the buffer body is expanded. 6, the water hammer is satisfactorily absorbed by the water hammer preventing function member of the diaphragm 5 and the buffer 6.

When a negative pressure is generated on the upstream side of the faucet 1 for some reason while the water channel R is opened, a backflow is generated from the washing machine side. When the above occurs, the floating top 8 moves downward from the spindle 7 by negative pressure, and the top 9 of the floating top 8 comes into contact with the toilet seat 2a to close the water passage R,
The floating top 8 can prevent backflow. Therefore, in the faucet 1 of FIG. 1, the handle 3 is compactly equipped with the diaphragm 5 and the shock absorber 6 which are the water hammer preventing function members, and the floating top 8 has the water passage 1
Since 0a and the opening hole 9a are formed, the water hammer can be reliably and satisfactorily prevented in spite of the compact structure, and as described above, the floating counter 8 can provide a good check effect. .

FIG. 3 shows a modification of the floating top 8, and in the floating top 8 of FIG.
There is no opening hole in the outer periphery of the shaft portion, and the shaft portion 10 is formed in a columnar shape having a cross-shaped cross section.
4 of 0b, 10b, 10b are formed. If such a floating piece 8 is inserted into the hollow passage 7a of the spindle 7 described above, the vertical gap is formed between the hollow top 7a and the inner peripheral surface of the hollow passage 7a. A water passage that allows water to pass through the grooves 10b, 10b, 10b, 10b is formed.
When the water hammer occurs, the water hammer can be satisfactorily transmitted to the diaphragm 5 side by the water passages 10b, 10b and 10b, and the water hammer prevention effect and the non-return effect similar to the case of FIG. It is something that can be demonstrated.

Further, FIG. 4 shows a different modified example. In FIG. 4, a water passage 7c is formed in the spindle 7 in an inclined shape, and the water passage 7c is provided on the water passage R side. The lower end is opened, and the upper end side is communicated with the hollow passage 7 a of the spindle 7. Therefore, if such a water passage 7c is formed in the spindle 7, the water passage R side and the diaphragm 5 side can be satisfactorily communicated,
When a water hammer occurs, the water hammer can be transmitted to the diaphragm 5 side from the water passage 7c through the hollow passage 7a, and a good water hammer prevention function can be exhibited.

[0011]

The present invention has a hollow spindle which is moved in a direction of opening and closing a water channel by rotating a handle.
A water faucet having a floating piece movably inserted into the spindle, wherein a water hammer prevention function member is provided inside the handle, and the floating jaw has the water channel side and the water hammer prevention function. By forming a water passage that connects the member side, if a water hammer occurs in the water passage,
Water hammer can be transmitted well to the water hammer prevention function member side provided in the handle through the water hammer and absorb the water hammer,
A good water hammer prevention effect and a non-return effect due to a floating top can be obtained, and a compact faucet can be obtained.

Further, since a plurality of opening holes communicating with the water passage are formed on the peripheral surface of the top portion of the floating piece, the water hammer can be satisfactorily passed through the water hammer passage through the plurality of opening holes. The water hammer can be transmitted to the water hammer prevention function member side, and the water hammer can be more surely absorbed.

Further, since the vertical groove forming the water passage is formed on the outer circumference of the shaft portion of the floating top, the water hammer generated in the water passage passes through the vertical groove on the outer circumference of the shaft portion of the floating top and is handled. Since it is transmitted to the water hammer prevention function member inside, a good water hammer prevention function can be exerted, and a good water hammer prevention effect and a non-return effect can be expected even with a compact faucet.

Further, in a faucet equipped with a spindle having a top at a tip which is moved in a direction of opening and closing a water channel by rotating a handle, a water hammer preventing function member is provided in the handle, A water passage that connects the water passage side and the water hammer prevention function member side is formed in the spindle, so that the water hammer generated in the water passage passes through the water passage formed in the spindle and is satisfactorily in the handle. Since it is transmitted to the water hammer prevention function member side, it has an effect that a good water hammer prevention effect can be obtained despite the compact structure.

[Brief description of the drawings]

FIG. 1 is a cross-sectional configuration diagram of a faucet with a water hammer prevention function according to a first embodiment.

2 is a sectional perspective view of the floating top in FIG.

FIG. 3 is a perspective configuration diagram showing a modified example of a floating top.

FIG. 4 is a cross-sectional configuration diagram of a water faucet according to a second embodiment.

[Explanation of symbols]

 1 Faucet 2 Faucet body 2a Toilet seat part 3 Handle 4 Case body 5 Diaphragm 6 Buffer body 7 Spindle 7a Hollow passage 7b Screw 7c Water passage 8 Floating piece 9 Top portion 9a Opening hole 10 Shaft portion 10a Water passage 10b Vertical groove R water passage

Claims (4)

[Claims] 1. A faucet including a hollow spindle that is moved in a direction of opening and closing a water channel by rotating a handle and a floating top that is movably inserted in the spindle. A water faucet with a water hammer prevention function, characterized in that a water hammer prevention function member is internally provided, and a water passage that connects the water passage side and the water hammer prevention function member side is formed in the floating piece. . 2. The water faucet with water hammer prevention function according to claim 1, wherein a plurality of opening holes communicating with the water passage are formed on a peripheral surface of a top portion of the floating top. 3. A water faucet with a water hammer prevention function according to claim 1, wherein a vertical groove forming the water passage is formed on the outer circumference of the shaft of the floating piece. 4. A faucet provided with a spindle having a top at a tip, which is moved in a direction of opening and closing a water channel by rotating a handle, wherein a water hammer prevention function member is incorporated in the handle, A water tap with a water hammer prevention function, wherein a water passage for connecting the water passage side and the water hammer prevention function member side is formed in the spindle.