JPH0229334Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an improvement in a built-in water mixing basin among sanitary appliances that can automatically adjust the temperature of hot water using a temperature-sensing function.

(Prior Art) Conventionally, a hot water/cold mixing faucet of a type in which a temperature-sensitive medium is used to sense the temperature difference between hot and cold water, and a valve body is actuated in response to the sensing, is shown in Fig. 7 and in Japanese Patent Application Laid-open No. 131869/1983. There is one shown in Fig. 8 (Fig. 3 A and B of the drawings of the present application). To briefly explain A and B in Fig. 3 above, the hot water flowing from the solar water heater into the first hot water flow path 53 and the hot water flowing from the product heat utilization heater into the second hot water flow path 5
The temperature of the mixed hot water is set by moving the control valve body 52 as detected by the temperature sensor 51, and the water flowing into the mixed hot water from the water flow path 56 is mixed with the hot water flowing into the mixed hot water in the manual adjustment part 55. The hot water is mixed in a desired ratio to obtain hot water at a desired temperature, and this hot water is discharged by opening the on-off valve 57 shown in FIG. 3A.

In the case of the hot water mixing faucet mentioned above, since the hot water and cold water are stopped in the mixing chamber, the fluid on the side that has higher pressure, especially the water side, may flow back toward the hot water side and lower the hot water temperature. This caused inconveniences such as the pilot flame spontaneously extinguished, causing a gas leak.

In addition, it was developed as a mixing valve that can control two valves by operating one handle.
There is one shown in FIG. 1 of the publication (FIG. 4 of the drawings of the present application).

To briefly explain the above FIG. 4, a valve case 59 having a steam chamber 60, a water chamber 61, and a mixing chamber 62 formed therein is provided, and both sides of the valve case 59 are sealed with lids 63 and 64. The operating spindle 66 to which the operating handle 65 is fixed is attached to the lids 68, 64 on both sides.
The steam valve 6 is rotatably supported in the steam chamber 60.
7, a water supply valve 68 is built into the water chamber 61,
When the operating handle 65 is rotated, the water supply valve 68 is slid to the right and opened, and when the operating handle 65 is further rotated, the steam valve 67 is opened, and water and steam are mixed to become hot water, which is then discharged from the hot water outlet 69. It is something that is discharged.

In the case of the above-mentioned mixing valve, it is possible to open the water supply valve and allow only water to flow out by operating the handle, but it has been difficult to open only the steam valve in order to obtain high-temperature hot water. Furthermore, the water supply valve and steam valve did not open at the same time, and since the water supply valve opened first, it was not possible to obtain hot water at the appropriate temperature quickly, and the hot water had to be drained until the temperature reached the appropriate temperature.

(Problem to be solved by the invention) The problem to be solved by the invention is to stop the hot water and cold water separately and simultaneously on the primary pressure side, and at the same time adjust the temperature appropriately to reduce wastage of hot water. At the same time, the aim is to improve work efficiency through ease of construction.

(Means for solving the problem) The technical means taken by this invention to solve the above problem is that the valve body that adjusts the temperature and the branch valve body that separately supplies hot water to the main body. The valve body and the branch stopper body are connected to a communicating pipe by attaching the two bodies separately to a bathroom wall or a fixed plate such as the top of a sink with a gap between them so that only the handle part is exposed. A plurality of annular concentric ribs are arranged in the internal axial direction of the valve body to provide a hot water flow path, a water flow path, and a hot water flow path. A valve cylinder holding socket is provided in the axial direction between the valve cylinders, and a valve cylinder containing a valve body and a temperature sensing body case in the form of a cartridge is inserted into the socket, and the valve cylinder is connected to the blind lid with a spectacle nut. A medium and a temperature regulating actuator connected to the mouth end of the valve cylinder are elastically coupled via a joint, a spring between the contact plate and the actuator that engages with the joint, and the temperature sensing element. The spring between the blind lids that presses the valve body against the case side is elastically balanced, and the flow rate of hot water and water can be adjusted appropriately by operating the valve body by sensing the temperature of the temperature-sensitive medium. At the same time, the branched stopper allows water to be turned off at the same time and separately.

(Function) When installing the valve body and branch plug body into the mounting holes of the fixing plate, if there is an error in the spacing between the mounting holes, the communicating pipe can be adjusted and positioned within the adjustment socket with plenty of room in the axial direction. . Furthermore, by operating the handle of the branch valve body in the valve closing direction, the hot water valve seat and the water valve seat are simultaneously closed, thereby separately shutting off hot water and cold water.

(Example) Hereinafter, the configuration of this invention will be explained in detail based on the drawings.

In the embodiment of this invention, as shown in FIGS. 1 and 2, the branch plug body 2 has a water valve seat 22a and a water valve seat 19a arranged on the same axis on both sides of a sealing part 11a. The water valve 32 and the hot water valve 33 of the valve rod 31 inserted through the valve stem 19a and the seal portion 11a are simultaneously connected to the hot water valve seat 22a and the water valve seat 19a from the secondary pressure side of the hot water flow path 4a and the water flow path 5a. In addition to opening the volume, the hot water and cold water can be connected so that they can be stopped separately at the same time.

The valve body 1 has a plurality of annular concentric ribs 3, 3 in the internal axial direction, which are separate from the branch plug body 2.
a, 3b are arranged to provide a hot water flow path 4 and a water flow path 5 on both sides of the rib 3, and a hot water flow path 6 is provided between the ribs 3a and 3b, and the ribs 3, 3a, and 3b are communicated with each other. A gripping socket 8 of the valve cylinder 7 is formed in the axial direction, and the valve cylinder 7 having a valve body 9 and a temperature-sensitive medium 10 (to be described later) is inserted into the gripping socket 8, and a plurality of valve cylinders 7 are formed on the circumferential surface of the valve cylinder 7. The seal portion 11 of the above-mentioned ribs 3, 3a, 3
The valve barrel 7 is fixed to the valve body 1 by a spectacle nut 13 attached to the screw hole 12 at one end of the valve body 1, and the screw hole 12a concentric with the rib 3 has a blind hole. The lid 14 is removably screwed on. A hole 1 in which a guide pin 16 supported on a seat 15 of a blind lid 14 is provided in the center of the valve body 9.
This valve body 9 is inserted into and connected to the valve cylinder 7.
The hot water is slidably inserted in the valve chamber 18 provided at the end of the valve chamber 18 in the axial direction, and is introduced from the hot water flow path 4 by alternately coming into contact with and separating from the hot water valve seat 19 of the valve chamber 18 and the hot water valve seat 22 of the blind lid 14. The heated hot water is supplied from the through hole 20 of the valve body 9 to the valve chamber 18a of the valve sleeve 7, the cold water from the water passage 5 is supplied to the valve chamber 18a of the temperature sensitive body case 23, and the cold water from the water passage 5 is supplied to the valve chamber 18a of the temperature sensitive body case 23. It is adapted to be elastically supported via a spring 21 so that it can be supplied to the valve chamber 18a of the temperature sensitive body case 23.

In this valve chamber 18a, there is a temperature sensing body case 2 having the temperature sensing medium 10 that operates in response to the temperature of the heat sink.
The thermosensitive body case 23 has a protrusion 24 at one end that contacts the valve body 9, and a through hole 2 provided around the protrusion 24.
The outlet 25 of the temperature sensitive body case 23 and the valve cylinder 7 communicate from the through hole 20a through the valve chamber 18a.
When the temperature-sensitive medium 10 detects a hot water temperature higher than a set value during this period, the temperature-sensitive body case 23 is actuated in the direction of arrow P in FIG. By gradually displacing the valve body 9 in contact with the protrusion 24 against the elasticity of the spring 21, the valve body 9 and the water valve seat 1 are separated.
The gap between the valve body 9 and the hot water valve seat 22 is widened, and the gap between the valve body 9 and the hot water valve seat 22 is narrowed so that the hot water temperature can be lowered.

The temperature of the temperature-sensitive medium 10 can be adjusted by operating an actuator 27 attached to the threaded opening 12b of the valve cylinder 7 in conjunction with the handle shaft 26. They are connected by a plate 29 and a spring 21a, and are connected so that the temperature value of the temperature sensitive medium 10 can be set in advance by operating the handle 30.

Next, the valve body 1 and the hot water passages 4, 4a and the water passages 5, 5a of the branch plug body 2 are connected to the communication pipes 34, 3.
4a to connect the branch plug body 2 and the valve body 1.
Adjustment sockets 35, 35a are provided at the ends of the communication pipes 34, 34a and on the extension of the hot water flow path 4a and the water flow path 5a of the branch plug body 2 so that the distance between the mounting positions of the two can be arranged flexibly. . The spacing between the control mounting positions is determined by the mounting holes 37, 37a pre-drilled in a fixed plate 36 such as a wall plate or the top plate of a sink as shown in FIG.
If there is a misalignment between the center lines, the packing pressers 38, 38 on the adjustment sockets 35, 35a side shall be loosely attached in advance. Further, the valve body 1 and the branch plug body 2 are both attached to attachment holes 37, 37a of the fixing plate 36 by flanges 39, 39 on the outer peripheral surface and decorative washers A, A, and the hot water flow path 4a is The water flow path 5a is connected to a water heater or a solar water heater via piping, and the water flow path 5a is connected to the water pipe.
The hot water channel 6 communicates with a faucet pipe or a shower head to constitute a built-in hot water mixer faucet B.
Now, as shown in FIG.
When attaching the valve body 1 and the branch plug body 2 to the mounting holes 37 and 37a using the decorative washers A and A,
If there is an error in the spacing between the center lines of a due to rough construction, the other ends of the communication pipes 34 and 34a, one end of which is fixed to the valve body 1 and the branch stopper body 2, may have an adjustment socket with sufficient axial clearance. 35, 35a, the valve body 1 and branch plug body 2 can be adjusted in the adjustment socket 35, 35a.
35a, and when the position is determined, the decorative washers A, A and the packing presser foot 3 are removed.
8 and 38, and then connect a hot water supply source to the hot water flow path 4a and the water flow path 5a, respectively, as usual, and connect a faucet or a shower head to the hot water flow path 6.

Next, in order to supply hot water at an appropriate temperature to a faucet or shower head using this hot water mixer faucet B, first operate the handle 30 of the branch faucet 2 in the opening direction, and the hot water valve seat 22a and the water valve seat 19a will simultaneously release the same amount of water. Since it is opened, the hot water in the hot water flow path 4a flows through the adjustment socket 35,
The hot water reaches the hot water flow path 4 through the communication pipe 34, enters into the valve body 9 between the valve body 9 which is open to the hot water flow path 4, and the hot water valve seat 2, and enters the hot water through the through hole 20 of the valve body 9. Warm body case 23
The hot water flow path 6 flows from the outlet 25 through the outlet 25a of the valve cylinder 7 while soaking the temperature-sensitive medium 10 while flowing through the through hole 20a of the valve chamber 18a toward the outlet 25 side.
directly into the faucet or shower head. During this time, if the temperature of the hot water is higher than the value set in advance by operating the actuator 27, the temperature sensing medium 10 that senses this is activated and the first
Since it is displaced in the direction of arrow P shown in the figure, the temperature sensing medium 10 and the temperature sensing case 23 integrated with it move in the same direction, moving the valve body 9 that is in contact with the protrusion 24 at the tip to the hot water valve seat 22 side. The distance between the hot water valve seat 22 and the valve body 9 is reduced and at the same time the valve body 9 is separated from the water valve seat 19. The cold water that has reached the water flow path 5 flows out to the hot water flow path 6 through the same route as hot water, and during this time the temperature sensing medium 10 senses the water temperature, and if this water temperature is equal to the set value, the hot water continues to flow into the hot water flow path 6. continues to be supplied, and if the water temperature becomes too low, the previous action can be repeated to automatically adjust the water temperature.

When the supply of hot water is no longer necessary, when the handle 30 of the branch valve body 2 is operated in the valve closing direction, the hot water valve seat 22a and the water valve seat 19a are simultaneously closed, thereby separately shutting off hot water and water.

(Effects of the invention) Since this invention is configured as described above, it has the following advantages.

(1) Separately create the valve body that adjusts the temperature and the branch stopper that can shut off hot water and water separately or supply the same amount at the same time, and connect these two bodies with a flexible communication pipe. Therefore, even if there is some error in the mounting hole when assembling the hot water mixing faucet to the fixed plate, the installation can be easily carried out in a short time without any difficulty.

(2) Compared to conventional models, the hot water valve seat and water valve seat of the branch valve body are opened and closed separately and simultaneously by the water valve and hot water valve on the secondary pressure side, so water with high pressure is transferred to the hot water side. Not only does it prevent water from flowing backwards and lowering the water temperature, but it also eliminates erroneous operation due to a single handle, increasing safety and heat loss rate.

[Brief explanation of the drawing]

Figure 1 is a plan sectional view of the present invention, Figure 2 is an enlarged front view of the hot water switching valve body, Figures 3 A, B, and 4.
The figure is an explanatory diagram of the prior art. Explanation of symbols of main parts, 1... Valve body, 2
...Branch plug body, 4, 4a... Hot water flow path, 5, 5a...
...Water flow path, 19a...Water valve seat, 22a...Hot water valve seat, 32...Water valve, 33...Hot water valve, 34, 34a
...Communication pipe, 35, 35a...Adjustment socket, 36...
...Fixing plate, 37, 37a...Mounting hole, B...Hot water mixing faucet.

Claims (1)

[Scope of utility model registration request] The valve body 1 that adjusts the temperature and the branch plug body 2 that separately supplies hot water to the valve body 1 are formed separately, and the mounting holes 37 and 37a of the fixing plate 36 are formed separately.
In a mixing faucet in which only each handle portion is exposed, the branch faucet body 2 is connected to the hot water flow path 4a.
and the hot water valve seat 22a and water valve seat 19a of the water flow path 5a.
can be opened and closed simultaneously and separately using a water valve 32 and a hot water valve 33 provided on the same axis, and the hot water flow paths 4, 4a and water flow path 5 between this branch stopper 2 and the valve body 1 are , 5a, the communication pipe 34,
34a and adjustment sockets 35, 35a so that the spacing between the mounting positions can be flexible.