JP3378827B2 - Hot water mixer tap replacement method and hot water mixer tap - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for replacing a hot and cold water mixing valve using a thermostat mixing valve and a method for replacing the hot and cold water mixing valve.
Regarding the hot and cold water mixing tap.

[0002]

2. Description of the Related Art In a conventional two-valve type hot and cold water mixer having a handle, a valve, and a mounting leg pipe provided on the left and right of a faucet body having a discharge port, the temperature of the mixed water discharged from the discharge port. Two adjustments, a water volume adjustment handle for adjusting the water volume and a hot water volume adjustment handle for adjusting the water volume
This was done by rotating the two handles appropriately.

[0003]

However, in the above configuration, every time the amount of mixed water is adjusted or the mixed water is discharged from the hot and cold water mixing tap in the stopped state,
It is necessary to adjust the temperature, and it is very troublesome for the user to frequently repeat the rotating operation of the water amount adjusting handle and the hot water amount adjusting handle for the temperature adjustment.

Further, when using the hot and cold water mixing tap provided in a bathroom, for example, when hot water or water is used in other places (for example, a toilet or a kitchen), it is supplied to the hot and cold water mixing tap. The amount of hot water or water decreases, and at the same time, the temperature of the mixed water rises and falls, which causes the user to feel uncomfortable and may cause burns.

The present invention has been made in view of the above matters, and an object thereof is to replace an existing two-valve type hot and cold water mixing tap with a hot and cold water mixing tap using a thermostat mixing valve by a simple construction and at a low cost. Is to provide what can be done.

[0006]

In order to achieve the above object, a method of replacing a hot and cold water mixing valve according to the present invention is a combination of a handle, a valve, and a mounting leg pipe on the left and right of a water faucet body having a discharge port. Remove one handle and valve of the two-valve type hot and cold water mixing tap, insert the thermostat mixing valve body into the remaining mounting leg pipe and hot and cold water mixing pipe, hot water inlet provided in the pipe, water The hot water and water flowing from the inlet are mixed at a suitable temperature by the thermostat mixing valve body, and the mixed water is passed through the hot water outlet provided in the pipe body and the pipe connecting the hot water outlet and the other mounting leg pipe to the other valve. , Mizusendo, and to send to the discharge port, the handle of the thermostat mixing valve was replaced with the one handle next hot water temperature adjustment handle,
The other handle serves as a handle for opening and closing (claim 1).

Also, on the left and right sides of the faucet body equipped with a discharge port,
Each set has a handle, valve, and mounting leg tube.
-Remove one handle and valve of the valve type hot and cold water mixing tap.
The remaining mounting leg pipes and the pipes for mixing hot and cold water.
-Insert the Mostat mixing valve body,
The hot water inlet and the hot water flowing from the water inlet
Mix at an appropriate temperature with the Tat mixing valve body,
Hot water outlet provided in the pipe, this hot water outlet and the other mounting leg pipe
Mix the mixed water through the pipe that connects with the other valve, faucet
Send it to the barrel and the discharge port,
Replaced thermostat mixing valve hand
As the hot water temperature adjustment handle and the other handle as the opening / closing handle.
And the thermostat mixin
Insert a tubular cover between the valve body and
The upper end of the bar body is projected above the pipe body, and the remaining
The lower end of the mounting leg pipe, and
It may be a sealing means between the hot and cold water mixing valve consisting provided between (claim 2), wherein the thermostatic mixing valve present
A sealing means is provided between the outer surface of the body and the inner surface of the remaining mounting leg tube.
It may be provided (Claim 3).

With the above structure, the existing two-valve type hot and cold water mixing tap can be easily replaced with a hot and cold water mixing tap using a thermostat mixing valve.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cut front view schematically showing the structure of a conventional two-valve type hot and cold water mixing tap.
FIG. 2 is a partially cut front view schematically showing the configuration of a hot and cold water mixing valve D using a thermostatic mixing valve according to an embodiment corresponding to claims 1 to 3 of the present invention. On one side of the faucet body 1 of a conventional two-valve type hot and cold water mixing tap D ′ provided on a stand A such as a wash basin, a hot water amount adjusting handle 2, a valve 3 and a mounting leg pipe 4 are provided in order from the top. On the other side, from the top, the water volume adjustment handle 2 ',
A valve 3'and a mounting leg tube 4'are provided. A discharge pipe 5'having a discharge port 5 at the tip is provided at the upper center of the faucet body 1, and a hot and cold water mixing stopper D'is further provided.
A hot water supply pipe 6 and a water supply pipe 6'are respectively connected to the lower ends of the mounting leg pipes 4 and 4'for fixing the water faucet barrel 1 to the base A. Further, strainers 7 ′ (see FIG. 2) are provided at the lower ends of the hot water supply pipe 6 and the water supply pipe 6 ′, respectively.
A check valve with strainer 7) is provided.

The construction of the hot and cold water mixing valve D using the thermostat mixing valve will be described below together with the assembling procedure. First, the hot water amount adjusting handle 2 and the valve 3 of the hot and cold water mixing valve D'are removed, and the thermostat mixing valve main body 8 is inserted into the remaining mounting leg pipe 4 upward from the removed position, and then the thermostat mixing is performed. A handle 8'is screwed to the upper end of the valve body 8. Then, the lower portion of the thermostat mixing valve body 8 protruding below the mounting leg pipe 4 is inserted into the pipe body K for mixing hot and cold water via the tubular cover body C.

At this time, the upper end of the cover body C located between the pipe body K and the thermostat mixing valve body 8 is projected above the pipe body K so as to face the lower end of the mounting leg pipe 4. To do.

At this time, the thermostat mixing valve body 8 and the cover body C are provided with a male screw portion 8 provided on the outer surface of the central portion of the thermostat mixing valve body 8.
a and a female screw portion Ca provided on the lower inner surface of the cover body C
It is connected by screwing.

Further, as shown in an enlarged view of FIG. 1, a male screw portion 4a provided outside the mounting leg pipe 4 is screwed to a connecting portion between the upper portion of the cover C and the lower portion of the mounting leg pipe 4. A cap nut 16 having a female threaded portion 16a inside and a small diameter portion 16b in the lower portion, and a cylindrical packing located between the upper end of the small diameter portion 16b of the cap nut 16 and the lower end of the mounting leg pipe 4. 17 and a hanging nut 18 are provided.

The suspension nut 1 located below the packing 17
8 has a male screw portion 18a screwed to a female screw portion Cb provided inside the upper portion of the cover C on the outside, and has a large diameter portion 18b on the upper portion, and the lower surface of the large diameter portion 18b has the small diameter portion. It is provided so as to contact the upper surface of the portion 16b.

With the above structure, by appropriately rotating the cap nut 16 and the cover body C, the mounting leg tube 4 and the cover body C can be connected and disconnected.

The pipe K has an opening 9 into which the lower portion of the thermostat mixing valve body 8 is inserted, and hot water outlet 10, water inlet 11, hot water inlet 12 are provided on the side surface in order from the top. Have

At the hot water inlet 11 and the water inlet 12 of the pipe body K, the remaining mounting leg pipe 4 and the other mounting leg pipe 4 '
The hot water supply pipe 6 and the water supply pipe 6 ′, which are connected to the hot water supply port 10, and the hot water supply outlet 10 for connecting the hot water supply outlet 10 and the other mounting leg pipe 4 ′ (for example, a flexible pipe). ) Are connected. This completes the assembly.

In the hot and cold water mixing valve D having the above structure, by rotating the handle 8 ', hot water and water flow into the thermostat mixing valve body 8 from the hot water inlet 11 and the water inlet 12, respectively, and are mixed. To be done. And
The mixed hot and cold water is guided from the hot and cold water outlet 10 through the pipe 13 into the faucet barrel 1 by the turning operation of the water amount adjusting handle 2 ′, and is discharged from the discharge port 5. Therefore, the replaced handle 8 ′ serves as a hot water temperature adjusting handle, and the other water amount adjusting handle 2 ′ serves as an opening / closing handle for adjusting the flow rate of the mixed water.

In order to prevent hot water introduced into the faucet body 1 from entering the lower part of the thermostat mixing valve body 8, the thermostat mixing valve body 8 is prevented.
Water leakage prevention multiple seals (for example, O-rings) 14 and 15 are provided between the outer surface of the mounting leg pipe 4 and the inner surface of the remaining mounting leg pipe 4, and between the outer surface of the thermostat mixing valve body 8 and the inner surface of the cover C. There is.

In the above construction, the check valve with strainer 7 is provided on the upstream side of the hot water inlet 11 and the water inlet 12 of the pipe K, but may be provided inside the hot water inlet 11 and the water inlet 12, respectively. .

[0022]

With the above structure, the existing two-valve type hot and cold water mixing tap can be easily replaced with a hot and cold water mixing tap using a thermostat mixing valve for automatically adjusting the temperature of the mixed water.

By using the thermostat mixing valve, it is not necessary to frequently repeat the rotating operation of the water amount adjusting handle and the water amount adjusting handle for temperature adjustment as in the conventional two-valve type hot and cold water mixing valve. Of course, for example, when using the hot and cold water mixer provided in a bathroom, even if hot water or water is used in other places (for example, a toilet or kitchen), it is supplied to the hot and cold water mixer. Since it is possible to prevent the amount of hot water or water from decreasing and the temperature of the mixed water rising and falling at the same time, the user can comfortably use without fear of being burned.

[Brief description of drawings]

FIG. 1 is a partially cut front view schematically showing a configuration of a conventional two-valve type hot and cold water mixing tap.

FIG. 2 is a partially cut front view schematically showing the configuration of a hot and cold water mixing valve using a thermostatic mixing valve according to an embodiment corresponding to claims 1 to 3 of the present invention.

[Explanation of symbols]

1 ... faucet body, 2 2 '... handle, 3 3' ... valve,
4, 4 '... Mounting tube, 5 ... Discharge port, 8 ... Thermostat mixing valve body, 10 ... Hot water outlet, 11 ... Hot water inlet, 12 ... Water inlet, 13 ... Pipe, D ... Hot water mixing tap, D' ...
Two-valve hot and cold water mixing tap, K ... Tube.

Claims (3)

(57) [Claims] 1. A two-valve type hot and cold water mixing tap having a pair of a handle, a valve and a mounting leg pipe provided on each of the left and right sides of a faucet body having a discharge port. Insert the thermostat mixing valve body into the pipe and the pipe for mixing hot and cold water, mix the hot water inlet provided in the pipe body, hot water and water flowing from the water inlet to the thermostat mixing valve main body at an appropriate temperature, and install it in the pipe body. The hot water outlet and the pipe connecting this hot water outlet and the other mounting leg pipe are used to send the mixed water to the other valve, faucet barrel, and discharge port, and the thermostat mixing replaced with the one handle. How to replace the hot and cold water mixing valve in which the valve handle is the hot water temperature adjustment handle and the other handle is the opening and closing handle . 2. A two- valve type hot and cold water mixing tap having a handle, a valve and a mounting leg pipe set on each of the left and right sides of a faucet body having a discharge port. Insert the thermostat mixing valve body into the pipe and the pipe for mixing hot and cold water, mix the hot water inlet provided in the pipe body, hot water and water flowing from the water inlet to the thermostat mixing valve main body at an appropriate temperature, and install it in the pipe body. The hot water outlet and the pipe connecting this hot water outlet and the other mounting leg pipe are used to send the mixed water to the other valve, faucet barrel, and discharge port, and the thermostat mixing replaced with the one handle. the handle of the valve to the hot water temperature adjustment handle, Ri closing handle entirety in the other handle, the tube body and the thermostat mixing Bal
Insert the cylindrical cover between the main unit and the
Project the upper end of the
Face the lower end of the leg tube and place a seal between them.
Hot and cold water mixing tap provided with a cooling means . 3. The hot and cold water mixing valve according to claim 2 , wherein a sealing means is provided between the outer surface of the thermostat mixing valve body and the inner surface of the remaining mounting leg pipe.