JPS6150191B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in a mixing faucet with a water-stopping function.

For example, a mixing faucet with a water shutoff function was developed in 1983.
As stated in Japanese Patent No. 94973, it has been known for a long time, but all of the previous ones have a valve mechanism for a mixing valve that changes and adjusts the temperature of the hot water taken out by changing the mixing ratio of hot water and cold water. Since the structure is configured to be used as a water stop valve, the set temperature of the mixed water changes when the water is turned off, so there is a problem that the temperature setting operation must be performed again every time the water is turned off.

In other words, when water is stopped, the hot water valve seat of the valve mechanism that changes the opening degree of the hot water inlet is moved, or the cold water valve seat of the valve mechanism that changes the opening degree of the water inlet is moved, and the hot water valve seat and cold water valve seat are separated. By narrowing the distance between the valve seats, the valve body located between the valve seats blocks both the cold water valve seat and the hot water valve seat, thereby stopping hot water from flowing out from the mixed water outlet. For example, by changing the position of the hot water valve seat or the cold water valve seat, you can adjust the hot water taken out from the mixed water outlet to maintain a temperature of approximately 40 degrees Celsius, and then use that hot water. If you turn off the water to interrupt the use of hot water while using hot water, the hot water temperature setting that you have taken so much effort to adjust will be completely destroyed, and even if you want hot water at the same temperature when you use hot water again. , there is the hassle of having to adjust the water temperature all over again.

The present invention was made in view of this problem and in order to solve this problem, it is possible to shut off the water without changing the state in which the hot water to be taken out has been adjusted to the desired temperature, and once the hot water has reached the desired temperature. If you adjust the settings, you can stop using the hot water at that temperature and use it again, and even if you repeatedly turn off the water and run the water, the hot water at the desired temperature will be drawn out without the need for adjustment. The purpose is to provide a means to do so.

In the present invention, as a means for achieving this object, a hot water inlet, a water inlet, and a mixed water outlet are arranged in the axial direction in a valve box that includes a hot water supply inlet, a water supply inlet, and a mixed water outlet. A cylindrical cartridge body is fitted on the peripheral wall in parallel with the cartridge body, and a valve mechanism is provided in the inner cavity of the cartridge body to change the opening degree of the hot water inlet and the water inlet. An adjustment dial of the mechanism is provided on the outer surface side of the valve box, and the mixed water outlet and the mixed water are connected to the outer periphery of the mixed water outlet provided on the peripheral wall of the cartridge body by operating a handle attached to the valve box. The present invention proposes a mixing faucet characterized by being provided with a water stop valve that opens and closes communication with an outlet.

Next, embodiments will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a valve box, which is provided with a hot water supply port 2 and a water supply port 3 on one side from the bottom to the top, and a mixed water outlet 4 on the other side. And the valve box 1
A cartridge body 5 is fitted into the valve box 1.
A mounting support 6 is fitted to the upper end of the holder.

The cartridge body 5 has a cylindrical shape with an open lower end, and a hot water inlet 7, a water inlet 8, and a mixed water outlet 9 are arranged in parallel from the bottom to the top in the axial direction and are opened on its peripheral wall.

The hot water inlet 7 and the water inlet 8 are opened close to each other, and the mixed water outlet 9 is opened above the water inlet 8 apart from the water inlet 8.
A mixing chamber 51 is formed in the inner cavity of the cartridge body 5 between the two.

A valve mechanism 10 is provided in the inner cavity of the cartridge body 5 to change the opening ratio between the hot water inlet 7 and the water inlet 8.
has been established.

The valve mechanism 10 has a water valve seat 11 by extending the upper edge of the water inlet 8 communicating with the inner cavity of the cartridge body 5 toward the inner cavity, and extends from the open lower end of the cartridge body 5 to the lower edge of the hot water inlet 7. Screwed-in bottom cover 1
2 is a hot water valve seat 13, and a mixing valve 14 that moves up and down between the water valve seat 11 and the hot water valve seat 13 is attached to an operating member 15 that is mounted so as to be able to move up and down along the axis of the cartridge body 5. It consists of being installed.

The operating member 15 is inserted into the recess 18 formed in the center of the bottom cover 12 with the coil spring 17 wound around the lower end 16 of the operating member 15, and is inserted into the mixing chamber 51.
A portion facing the thermostat 19 is formed in the thermostat 19, and a piston 20a at an upper end portion 20 of the thermostat 19 is configured to penetrate through the upper end blind portion of the cartridge body 5 and protrude outward. This thermostat 19 expands and contracts depending on the temperature of the mixed water. Further, the upper end portion 20 of the actuating member 15 has a spring seat 2
1, and the strength of the spring seat 21 is adjusted by rotation of a temperature adjustment handle 22 and biasing of a coil spring 23, whereby the mixing valve 14 is aligned with the hot water inlet. The opening ratio between the water inlet 7 and the water inlet 8 is changed.

The upper outer circumferential wall 52 of the cartridge body 5 and the inner circumferential wall 61 of the lower cylinder 61 of the mounting support 6
A gap 24 is formed between the gap 24 and the gap 24, into which a slide tool 25 and a water stop valve 26 are fitted.

The water stop valve 26 has a cylindrical shape and is screwed into the upper outer circumferential wall 52 of the cartridge body 5, and has a flange whose lower end 26a protrudes from the outer circumference of the lower edge of the mixed water outlet 9 of the cartridge body 5. The mixed water outlet 9 is opened and closed using the portion 53 as the valve seat 27. The outer peripheral wall of the cylindrical water stop valve 26 is approximately
As shown in FIG. 2, vertical grooves 26b, 26b are provided in the parts where the phase differs by 180 degrees.
The legs 25b, 25b of the slide tool 25 fit into the grooves 26b, 26b. 2
6c is a female screw carved into the inner circumferential wall of the water stop valve 26;
A is a male screw on the cartridge body 5 side that is screwed into the male screw 26c.

The slide tool 25 also has a cylindrical shape, and the leg portions 25b, 25b protrude from portions of the lower end surface that are out of phase with each other by approximately 180 degrees, and a rotation stopper pin 25a protrudes from the outer periphery of the leg portions 25b. cage, its inner peripheral wall 2
5c is the upper outer peripheral wall 5 of the cartridge body 5
2 is rotatably fitted. The rotation stopper pin 25a projects outward from the lower tube 61 of the mounting support 6 and is capable of engaging with the handle 28.

As shown in FIG. 3, the handle 28 consists of an annular fitting part 28a and a grip part 28a, and the lower surface of the annular fitting part 28a has a flange that can protrude into the lower cylinder outer circumferential wall 61b of the mounting support 6. The annular fitting portion 28a is placed in contact with the upper surface of the portion 63 (FIG. 1).
The inner circumferential wall 28c is rotatably fitted into a portion 61c of the lower cylinder outer circumferential wall 61b above the flange 63 (FIG. 1). The inner circumferential wall 28c is provided with a groove 28d in which the rotation stopper pin 25a engages.

The mounting support 6 includes a large-diameter lower tube 61 that opens downward and a small-diameter upper tube 62 that opens upward.
and are integrally formed (Fig. 1). As mentioned above, the lower cylinder 61 has an outer circumferential wall 61b.
A flange portion 63 is protruded from the flange portion 63, a male thread 61d is cut into the outer peripheral wall portion below the flange portion 63, and a female screw thread 61d is carved into the inner peripheral wall portion of the upper end portion of the valve box 1.
It is designed to be fixed by screwing with b (first
figure). On the other hand, an opening 61e is provided in the circumferential direction in a portion 61c of the lower cylinder 61 above the flange 63, and the detent pin 25a passes through the opening 61e and is fitted into the lower cylinder outer peripheral wall 61b. Rotation of the handle 28 causes the pin 25a to reciprocate within the opening 61e.

A male thread 62a is formed on the outer periphery of the upper cylinder 62, into which an adjustment screw holder 29 having a female thread 29a formed on the inner periphery is screwed and fixed.

The adjustment screw holder 29 pivotally supports an adjustment male screw 30 that is integrated with the temperature adjustment handle 22. The adjustment male screw 30 is formed into a shaft tube shape that opens downward, and a coil spring 23 that presses the spring seat 21 is accommodated in the inner cavity 30a. A female adjustment screw 31 is screwed into the male adjustment screw 30, and a lower end receiving portion 31a of the female adjustment screw 31 supports the spring seat 21.

Further, the outer periphery of the adjustment female screw 31 has a hexagonal shape, and this fits into each hexagonal inner periphery of the upper cylinder 62 of the mounting support 6 and the middle cylinder 29b of the adjustment screw holder 29, and The adjustment female screw 31 is configured to move up and down as the adjustment male screw 30 screwed therewith rotates.

Note that the actuating member 15 of the mixing valve 14 may be formed into a rod-shaped body without the thermostat 19. In this case, it will be a manual one-lever mixing faucet.

Next, the functions of the mixing faucet configured as described above will be explained separately, including taking out and stopping the mixed water, and obtaining the temperature of the mixed water.

Taking out and stopping the mixed water When the handle 28 is rotated clockwise in FIG. 3, the groove 28 of the annular fitting part 28a
When the rotation stopper pin 25a abuts against the wall d, the slide tool 25 also rotates clockwise. This rotation of the slide tool 25 causes the leg portion 25 to
The water stop valve 26 that was fitted to the leg 25b also
while sliding it along the vertical groove 26b and rotating it clockwise. When the water stop valve 26 is rotated in this manner, the female screw 26c formed on the inner circumference of the water stop valve 26 becomes the male screw 5 formed on the outer circumference of the cartridge body 5.
a, and thereby the water stop valve 26
falls or rises. When the water stop valve 26 is lowered, it collides with the valve seat 27 to close the mixed water outlet 9 and stop taking out the mixed water. On the other hand, the water stop valve 2
6 rises, the valve port on the valve seat 27 is opened, and the mixed water flows out to the mixed water outlet 4 and is taken out from the mixed water outlet 9.

Temperature Adjustment of Mixed Water When the temperature adjustment handle 22 is rotated in the direction of high temperature, the male adjustment screw 30 rotates the female adjustment screw 31 in a direction in which the receiving portion 31a at the lower end of the female adjustment screw 31 rises. As the receiving portion 31a rises, the spring seat 21 rises. At this time, the coil spring 23 housed in the inner cavity of the adjustment male screw 30 is compressed. As the spring seat 21 rises, the actuating member 15 that was in contact with it rises due to the bias of the spring 17 below. When the actuating member 15 rises, the mixing valve 14 attached thereto also rises, throttles the water inlet 8, opens the hot water inlet 7, makes the hot water ratio of the mixed water larger than the water ratio, and increases its temperature.

On the other hand, when the temperature adjustment handle 22 is rotated in the direction of low temperature, contrary to the above, the receiving portion 31a
As the spring seat 21 is lowered, the spring seat 21 is lowered. At this time, the spring 23 housed in the inner cavity 30a of the male adjustment screw 30 is expanded. The biasing force of the spring 23 suppresses the biasing force of the spring 17 below the actuating member 15, thereby lowering the actuating member 15. When the actuating member 15 is lowered, the mixing valve 14 is lowered,
Contrary to the above, the water inlet 8 is opened and the hot water inlet 7 is throttled, thereby making the proportion of hot water in the mixture less than the proportion of water and lowering its temperature.

In this way, when the temperature of the mixed water is set by the temperature control handle 22, the temperature of the mixed water varies depending on the opening degree of the water stop valve 26, and the piston 20a is expanded and contracted by the thermostat 19 in the mixing chamber 51. By vertically moving the mixing valve 14 to automatically adjust the opening degrees of the water inlet 8 and the hot water inlet 7, the set temperature is ensured.

As described above, the mixing faucet according to the present invention is
A hot water inlet 7 and a water inlet 8 are provided in the valve box 1, which includes a hot water supply port 2, a water supply port 3, and a mixed water outlet 4.
and a mixed water outlet 9 are provided on the peripheral wall in parallel in the axial direction.
A valve mechanism 10 for changing the opening degrees of the hot water inlet 7 and the water inlet 8 is provided in the inner cavity of the cartridge body 5, and the adjustment dial 22 of the valve mechanism 10 is placed on the outer surface of the valve box 1. A handle 2 attached to the valve box 1 is provided on the outer periphery of the mixed water outlet 9 provided in the peripheral wall of the cartridge body 5.
Since the water stop valve 26 is provided to open and close the communication between the mixed water outlet 9 and the mixed water intake port 4 by the operation in step 8, the water is taken in from the hot water supply port 2 and the water supply port 3 of the valve box 1. Hot water and water enter the cartridge body 5 from the hot water inlet 7 and the water inlet 8 provided on the peripheral wall of the cylindrical cartridge body 5 in the valve box 1, and at that time, the cartridge body A predetermined mixing ratio of hot water and water is achieved by the valve mechanism 10 in the 5, thereby producing hot water (mixed water) at a predetermined temperature.
The mixed water is then taken out from the mixed water outlet 9 provided on the peripheral wall of the cartridge body 5 through the mixed water outlet 4 provided on the valve box 1. Then, the water stop valve 26 provided outside the mixed water outlet 9 opens and closes the communication between the mixed water outlet 9 and the mixed water outlet 4 so that the mixed water, which is hot water taken out to the outside, is opened and closed.
You will be able to switch between water stop and water flow. For this reason,
By rotating the adjustment dial 22 and adjusting the operating position of the valve mechanism 10 as desired, the temperature of the hot water taken out from the mixed water outlet 9 to the outside via the mixed water outlet 4 can be adjusted as desired. By rotating the handle 28 and moving the water stop valve 26 in this state, the adjusted temperature of the hot water can be switched between water stop and water flow at any time without changing the adjustment.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a mixing faucet according to the present invention, FIG. 2 is an exploded perspective view of a water stop valve and a slider of the same mixing faucet, and FIG. 3 is a sectional view taken along the line taken in FIG. 1. Explanation of drawing symbols, 1...Valve box, 2...Hot water supply port, 3...Water supply port, 4...Mixed water outlet, 5...
... Cartridge body, 5a... Male thread, 51...
...Mixing chamber, 52... Upper outer peripheral wall, 53... Flange,
6...Mounting support, 7...Hot water inlet, 8...Water inlet, 9...Mixed water outlet, 10...Valve mechanism, 11
... Water valve seat, 12 ... Bottom cover, 13 ... Hot water valve seat, 1
4... Mixing valve, 15... Actuation member, 16... Lower end, 17... Coil spring, 18... Recess, 19...
... Thermostat, 20 ... Upper end, 21 ... Spring seat, 22 ... Temperature adjustment handle (adjustment dial), 23 ... Coil spring, 24 ... Gap, 2
5... Slide tool, 25a... Rotation stopper pin, 2
5b...Legs, 25c...Inner peripheral wall, 26...Water stop valve, 26a...Lower end, 27...Valve seat, 26b...
Groove, 26c...Female thread, 28...Handle, 28
a... Annular fitting part, 28b... Gripping part, 28c...
...Inner peripheral wall, 28d...Groove, 29...Adjustment screw holder, 29a...Female thread, 29b...Middle cylinder, 3
0... Adjustment male screw, 30a... Shaft cylindrical inner cavity, 3
1...adjustment female screw, 31a...lower end receiving part, 61...
... lower cylinder, 61a ... inner peripheral wall, 61b ... cylinder outer peripheral wall, 61c ... upper part, 61d ... male screw,
61e...opening, 62...upper tube, 63...flange, 62a...male thread.

Claims (1)

[Claims] 1 In a valve box 1 equipped with a hot water supply port 2, a water supply port 3, and a mixed water outlet 4, a hot water inlet 7, a water inlet 8, and a mixed water outlet 9 are provided in parallel in the axial direction on the peripheral wall. A cylindrical cartridge body 5 is fitted therein, and a valve mechanism 10 for changing the opening degrees of the hot water inlet 7 and the water inlet 8 is provided in the inner cavity of the cartridge body 5. A dial 22 is provided on the outer surface side of the valve box 1, and the mixed water outlet 9 is opened at the outer circumference of the mixed water outlet 9, which is provided on the peripheral wall of the cartridge body 5, by operating a handle 28 assembled to the valve box 1. 9 and the mixed water outlet 4.