JPH01238779A - Valve unit - Google Patents

Abstract

PURPOSE:To make systematizing simple by housing the switch valve body, opening and closing the passage of a spout exhaust passage, shower exhaust passage, and bath exhaust passage, within a main body. CONSTITUTION:A switch valve body 9 is for opening and closing the passages to the exhaust pipes 11, 12, and 13 for a shower, spout, and bath respectively, and watertightly housed within a housing chamber 14 formed in a valve body 1 via a packing. An inflow port 15 opened to a chamber 8 side and a bath outflow port 16 are provided to the peripheral wall of the upper part side of the chamber 14, and moreover connecting openings to the pipes 11 and 12 are provided to the lower part side. An introduction port 17 provided on the peripheral wall of the valve 9 and a bath exhaust port 18 are made to have the nearly same level as the port 15 of the chamber 14 and the port 16.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a valve unit for delivering water or hot water to a destination that requires it.

[Conventional technology]

A hot water supply system for a domestic bathroom is equipped with a spout for washing hot water such as a faucet or a mixer faucet, and faucets for showers and baths to supply water and mixed water. Among these, spouts and showers that change the direction of water discharge using a switching valve are generally employed, with the hot water mixer faucet at the center.

The bath faucet is installed in a piping system independent of the hot water mixing faucet, and the temperature and flow rate are adjusted by operating a dedicated full moon valve and water valve.

[Problem to be solved by the invention]

In recent years, small home water heaters have been introduced to the market in place of conventional large hot water boilers, and with this, they have come to be used in various hot water equipment such as bathrooms. became. With the introduction of home automation and the like, demand for valve units that can automatically set the temperature, flow rate, etc. of hot water supplied to a bathtub is rapidly increasing.

However, with conventional valve structures, although it is possible to switch between the flow paths on the shower side and the spout side, the piping system for the bath faucet is separate and cannot be integrated.

For this reason, there has been a problem in that it is not possible to incorporate hot water from a single hot water source into a system that appropriately adjusts the temperature and flow rate and sends the water or hot water to the required destination.

Therefore, an object of the present invention is to make it possible to supply water or mixed water to supply destinations including buses using a single valve unit.

[Means to solve the problem]

In order to achieve the above object, the valve unit of the present invention connects a spout discharge passage, a shower discharge passage, and a lotus discharge passage to the main body of the unit, and opens and closes the flow passages to each of these discharge passages. A switching valve body is housed in the main body.

Also, a switching valve that connects a spout discharge passage, a shower discharge passage, and a bath discharge passage to the main body of the unit and switches the flow passage to the spout discharge passage and the shower discharge passage, and the switching valve is It is characterized in that on-off valves that independently open and close the flow path to the bus discharge path are housed in the main body.

〔Example〕

Hereinafter, features of the present invention will be specifically explained with reference to embodiments shown in the drawings.

Fig. 1 is a longitudinal cross-sectional view of a valve unit equipped with a switching valve of the present invention, Fig. 2 is a cross-sectional view, and Figs. 3 and 4 are cross-sections taken along the I-1 line and ■-■ line in Fig. 1. It is a diagram.

A water supply pipe 2 and a hot water supply pipe 3 are connected to one end of the main body 1 of the valve unit, and the water supply pipe 2 is connected to a normal water supply pipe, and the hot water supply pipe 3 is connected to a water heater (not shown). is connected. Furthermore, these water supply pipes 2 and hot water supply pipes 3 are located at different heights in the vertical direction, as shown in FIG. is rotatably stored.

The mixing valve body 4 has a hollow cylindrical shape with its lower end open, and its upper end spindle 4a is connected to a temperature adjustment motor unit 5 fixed to the upper part of the main body 1, and rotates around its axis by rotation of its output shaft. . In addition, by opening a water flow port 4b and a vortex inlet 4C at vertically shifted positions on the peripheral wall of the mixing valve body 4, and aligning these ports with the outlets 2a and 3a of the water supply pipe 2 and the hot water supply pipe 3. , open and close the hot water and water channels. In addition, in FIG. 2, in order to simplify the explanation, outflow ports 2a, 3a and water and hot water inlets 4b, 4 are shown.
c are shown as being arranged on the same plane. The mixing ratio of water and hot water can be freely changed depending on the shape and positional relationship of these ports 2a, 3a, 4b, and 4c, and in the illustrated state, the outlet ports 2a,
These waters, so that the flow path area is the same for 3a,
Hot water inlets 4b and 4c are located, and water and hot water flow into the main body 1 at equal flow rates.

Note that a gasket 6 that closely contacts the peripheral wall of the mixing valve body 4 is integrated at the ends of the outflow ports 2a, 3a. The seal 6 is a hollow cylindrical body having a curved surface that can seal the periphery including the water and hot water inlets 4b and 4c of the mixing valve body 4, and the inside thereof serves as a passage for fluid. . Furthermore, a cylindrical holding fitting 6a for holding the packing 6 is integrated with the outflow ports 2a, 3a, and an annular groove is formed between the outer circumference of the fitting and the inner circumference of the outflow ports 2a, 3a. ing. A reinforcing core bar 6b is formed in a cylindrical shape and integrated into the packing 6, and the core bar 6b is fitted into a groove formed between the holding fitting 6a and the outlet ports 2a and 3a. The packing 6 is fixed by pushing it in. This fixed structure of the pankin 6 prevents the pankin 6 from coming off the prescribed position or changing its posture even under harsh operating conditions where the mixing valve body 4 frequently rotates to adjust the temperature of the mixed water. be done. Therefore, a good sealing condition is always obtained, and durability is also improved by maintaining appropriate sliding conditions with the peripheral surface of the mixing valve body 4. Moreover, instead of providing the holding fittings 6a, the outlet ports 2a, 3
The gasket 6 may be held and fixed by providing a concave groove in a or by forming it at an appropriate position on the main body X. Further, the lower and upper ends of the mixing valve body 4 are provided with resin rings 7a and 7b for smooth rotation thereof. These resin rings 7a and 7b are assembled using steps formed in the main body 1, and are held so that the upper and lower ends of the mixing valve body 4 do not come into direct contact with the inner wall of the main body 1.

In this way, the mixing valve body 4, which is a metal member, and the main body 1 do not come into direct sliding contact, and by interposing the lubricating resin rings 7a and 7b, rapid rotation of the mixing valve body 4 is possible. Become. Therefore, the output torque of the temperature adjustment motor unit 5 is also reduced, and the device capacity can be reduced.

A chamber 8 for detecting the temperature and flow rate of water or mixed water is formed in a flow path within the main body 1 that communicates with the lower end of the mixing valve body 4. This chamber 8 has an axial flow type flow sensor 8.
a and a temperature sensor 8b are arranged.

Further, downstream of the chamber 8, a switching valve body 9 for shutting off water or mixed water and switching the flow path is rotatably arranged. The switching valve body 9 has a hollow cylindrical shape like the mixing valve body 4, and has an upper spindle 9a connected to an output shaft of a motor unit IO fixed outside the main body 1. - On the other hand, a shower discharge pipe 11 and a spout discharge pipe 12 provided in a washing area are branched and connected from the main body 1 in the portion housing the switching valve body 9. Also,
A bus discharge pipe 13 is attached to the other end of the main body 1.

The switching valve body 9 is for opening and closing the flow path to the shower, spout, and bath discharge pipes 11, 12, and 13,
As shown in FIGS. 1 and 2, it is housed in a storage chamber 14 formed in the main body 1 in a watertight manner via a packing 14a. The upper circumferential wall of the storage chamber 14 is provided with an inlet 15 and a bath outlet 16 that are open to the chamber 8 side, and furthermore, the lower part is provided with openings for communicating with the drain pipes 11 and 12 for the spout. (described later) is provided. Furthermore, a flow passage opening as shown in FIG. 5 is provided in the peripheral wall of the switching valve body 9. These flow passage ports are inlet ports 17 provided on the upper side of the peripheral wall. Bus discharge port 18 and two first discharge ports 19 provided on the lower side. 2nd outlet 20, total 4
The respective relative positions are indicated by (a) to (d).

The inlet 17 and the bath outlet 18 are connected to the storage chamber 14.
The bus inlet 15 and the bus outlet 16 are provided at approximately the same level. The introduction port 17 has an area that occupies approximately half of the circumference.

Also, 1st. The second outlet 19.20 is for the spout.

It is located so as to correspond to the connection point portion of the shower discharge pipes 11 and 12. These discharge pipes 11.1 are connected by a packing (not shown) structure similar to that of the mixing valve body 4.
It is possible to communicate with communication paths 11a and 12a to 2. Note that resin sheets 21a and 21b are provided at the upper and lower ends of the switching valve body 9, similarly to the case of the mixing valve body 4, to facilitate rotational movement.

Further, the main body 1 is provided with an electromagnetic valve 22 as an on-off valve that auxiliarily opens and closes the flow path to the bus discharge pipe 13. That is, a valve seat 22a is provided inside the main body 1 at the inflow portion to the bus discharge pipe 13, and the valve body 22b of the solenoid valve 22 is mounted on the valve seat 2.
2a can be opened and closed.

Here, each temperature adjustment motor unit 5. rotates the mixing valve body 4 and the switching valve body 9. Motor unit 1
0 and the electromagnetic valve 22, energization is controlled by a control unit (not shown) provided as a system external to the main body 1. This control is performed based on output signals from the flow rate sensor 8a and temperature sensor 8b, and also includes selecting supply to the spout, shower, or bath. In other words, an operation panel is built into the bathroom wall, etc., and a switch for setting the supply destination, temperature and flow rate adjustment switches, etc. are installed on this panel, and water or hot water at the appropriate temperature and flow rate is supplied to the place where it is needed. Have a system. These settings and executions are performed based on the rotation direction and angle of the mixing valve body 4 and the switching valve body 9, and this will be explained below.

The mixing valve body 4 rotates clockwise or counterclockwise in FIG.

The temperature of the mixed water is adjusted by changing the degree of matching to the hot water side outlets 2a, 3a. In other words, in the case shown, water and hot water flow at the same flow rate as described above, but
When rotated clockwise, the water inlet 4b comes to align with the outlet 2a and at the same time the hot water side flow path becomes smaller. Therefore, more water than hot water flows into the main body 1, and the temperature of the mixed water is set low. Conversely, if the mixing valve body 4 is rotated counterclockwise, the amount of hot water will increase and the temperature will increase. Such a rotational operation of the mixing valve body 4 is performed by controlling the rotational direction and angle of the output shaft of the temperature adjustment motor unit 5 through settings on the operation panel. And temperature sensor 8b
It is also possible to measure the temperature of the mixed water supplied by the controller and rotate the mixing valve body 4 based on a signal from this so that the mixed water is maintained at a set value.

Next, the flow path switching between the spout, the shower and the bath is performed by rotating the switching valve 9 using the motor unit 10. In other words, in FIG. 5(a), the bus outlet 18 is located at a distance from the bus outlet 16, and the first. The second discharge ports 19 and 20 are both the communication path 11a,
12a, and the water or mixed water is in a water-stopped state. Then, as shown in FIG. 5(b), when the switching valve body 9 is rotated approximately 45 degrees clockwise, the bus outlet 18 is aligned with the bus outlet 16, and the flow path to the bus side is opened and closed. be done. At this time, if the electromagnetic valve 22 is kept open, water or mixed water is supplied to the bus from the bus discharge pipe 13. Note that the solenoid valve 22 is used auxiliary and is normally left open.

Next, as shown in FIG. 5(C), when the switching valve body 9 is further rotated approximately 45 degrees clockwise, the flow path on the bus side is closed, and at the same time, the first discharge port 19 is communicated with the communication path 12a. . Therefore, the water or mixed water flowing in from the inlet 17 is supplied from the first outlet 19 to the spout discharge pipe 12, allowing the spout to be used. Then, when the switching valve body 9 is further rotated 45 degrees clockwise as shown in FIG. Opens to allow water to flow from the shower.

In this way, depending on the rotation angle of the switching valve body 9, four patterns of water stop, lotus water spouting, slow water spouting, and spout water spouting can be used. And the switching of these flow paths is
This can be easily done by rotating the switching valve body 9 using the motor unit 10. In addition, the bus outlet 18
．． 1st. The flow rate can be adjusted freely by changing the degree of alignment of the second outlet ports 19, 20 with the corresponding lotus outlet 16° communication paths 11a, 12a.

In addition, by rotating the switching valve body 9 counterclockwise in FIG. 5 from the state of shower water discharging (FIG. 5(d)) or spout water discharging (FIG. 5(C)), When returning to the water stop position, the bath passes through a water discharge state as shown in FIG. 5(b). For this reason, the solenoid valve 2
If control is performed to keep 2 closed, water or mixed water will not be discharged unnecessarily.

Furthermore, instead of the operation of the switching valve body 9 shown in FIG. 5, for example, if the switching valve body 9 is rotated counterclockwise from the water stop position shown in FIG. Alternatively, the water may be discharged from the shower. Such an operation can be performed using the inlet 17 provided in the switching valve body 9. Bath outlet 16. This is possible by optimizing the positional relationship, size, etc. of the first discharge port 19 and the second discharge port 20.

〔Effect of the invention〕

As described above, the valve unit of the present invention includes a valve structure that can independently open and close flow paths in three directions, such as a spout, for a washing area, for a shower, and for a bath. Therefore, even when it is incorporated into equipment centered on a water heater, it is not necessary to provide separate piping systems for the washing area and the lotus as in the past, and systemization can be easily performed.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing one embodiment of the valve unit of the present invention, FIG. 2 is a cross-sectional view, and FIGS. 3 and 4 are I of FIG.
FIG. 5 is a schematic cross-sectional view showing changes in the flow path due to rotation of the switching valve body. 2. Water supply pipe 3: Hot water supply pipe 4 Mixing valve body 5: Temperature adjustment motor unit 6, packing 7. Resin ring 8 Chamber 8a° Flow rate sensor 8b Temperature sensor 9/Switching valve body 10: Motor unit 11 Lower discharge pipe 12: Spout discharge pipe 13, bath discharge pipe 14: Storage chamber 15゛ inlet 16゛ bath outlet B17° introduction port
18. Bus discharge port 19゛1st discharge port 20: 2nd discharge port 22, solenoid valve (on/off valve) Patent applicant Totokiki Co., Ltd. Agent Masu Kobori (and 2 others) 2nd
Fig.3 Fig.4

Claims (1)

[Claims] 1. A spout discharge passage, a shower discharge passage, and a bath discharge passage are connected to the main body of the unit, and a switching valve body for opening and closing a flow passage to each of these discharge passages is provided in the main body. A valve unit characterized by being housed in a. 2. A switching valve that connects the spout discharge channel, shower discharge channel, and bath discharge channel to the main body of the unit and switches the flow paths to the spout discharge channel and the shower discharge channel, and what is the switching valve? A valve unit characterized in that on-off valves that independently open and close a flow path to the bus discharge path are housed in the main body.