JPH0643458U - Water purifier installation prevention device in the original stop type mixed faucet - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent damage to water heaters, etc. that occur when a water purifier with a water stop function is attached to the water discharge pipe of a main stop type water faucet. [Structure] The main stop type mixed faucet 1 has a small hole 2 in the peripheral surface of a water discharge pipe 18.
0 is provided, and after the water purifier D is attached to the water discharge pipe 18, the mixed water is discharged, and when the water purifier D is stopped, the fluid is discharged from the small holes 20 so that the user can mix the water. It can be recognized that the water purifier D cannot be attached to the stopper 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a combination of a main stop type mixed faucet and a water purifier having a water stop function.

[0002]

[Prior art]

 Recently, by installing a water purifier on the discharge pipe of a mixed faucet installed in a general household, delicious water that has passed through a filter medium or the like can be obtained for drinking. However, the flow path was switched to normal water and filtered water that passed through the filter media in a so-called stop-type mixed faucet with a water stop mechanism on the primary side of the water heater, and it also had a water stop function. There is an inconvenience when the water purifier is attached, which will be explained with reference to FIGS. 5 and 6.

FIG. 5 shows a main stop type mixing faucet disclosed in Japanese Utility Model Publication No. 49-4187. This is a water supply control chamber for guiding water from a water supply passage 42 by operating a knob 41 in a main body 40. 43, a water supply pipe 47 connected to the water heater 46 by a temperature control valve 45 connected to the handle 44, and a temperature control chamber 49 branching to the mixing chamber 48. The hot water pushed up from the water heater 46 by 48 and the water directly flowing in from the temperature control chamber 49 are mixed and discharged from the water discharge pipe 50.

FIG. 6 shows a water purifier with a water stop function shown in FIG. 11 of Japanese Examined Patent Publication No. 3-79044. This water purifier 51 is watertightly attached to the tip of a faucet 58 and has a lever 52. When the rotary valve 53 is rotated by operating, the water is discharged from the spout 56 of the purified water passing through the filter medium 55 and the filter medium 55 from the water stop state where the outer peripheral surface of the rotary valve 53 is in contact with the packing 54. Similarly, the DC water that does not pass through can be switched between the water discharge from the water outlet 56 and the shower-like water discharge from the small hole 57.

Here, the water purifier of FIG. 6 is attached to the original stop type mixed water faucet of FIG. 5, and when the mixed water is supplied with the knob of the mixed water faucet open, the water purifier at the tip of the water discharge pipe stops the water. The water supply channel and the water heater remain in communication with each other, so the water pressure from the water supply source is applied to the water heater, and there is no escape for the hot water heated by the water heater, and the water heater is sealed inside. The internal pressure rises because of the condition, and there is a risk of damaging the water heater due to excessive pressure.

In addition, in the case of a front-end type mixed faucet in which a flow control valve for stopping water is provided on the secondary side of the water heater, the above problem does not occur even if a water purifier with a water stop function is attached. However, it was not easy for general users to judge whether the mixed faucet used was of the original stop type or the front stop type.

[0007]

[Problems to be solved by the device]

 The problem to be solved by the present invention is to prevent the water purifier with a water stop function from being attached to the water discharge pipe of the main stop type water faucet, so that It is to prevent damage.

[0008]

[Means for Solving the Problems]

 According to the present invention, cold water is branched into a mixing chamber and a water heater by operating a mixing faucet installed on the primary side of the water heater, and the hot water pushed up from the water heater is mixed with the cold water in the mixing chamber to discharge the water. In the former stop type mixed water faucet that discharges more, the water discharge pipe is provided with a small hole that allows the fluid to escape to the outside when the water purifier attached to the tip is in the water stopped state.

[0009]

[Action]

 When a water purifier is attached to the end of the water discharge pipe of the main stop type water faucet to discharge the fluid, and then the lever of the water purifier is operated in the water stop direction with the flow control handle of the water faucet left open, The user can recognize that the water purifier cannot be attached to this water mixer because the water mixture is discharged from the small hole of the water pipe.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the embodiment of the present invention, as shown in FIGS. 1 and 2, a main stop type mixing faucet 1 has a valve seat hole 2 on one side inside and a first water supply chamber 3 on the primary pressure side centering on the valve seat hole 2. And a second water supply chamber 3a on the secondary pressure side is provided, and the second water supply chamber 3a is associated with a valve body 6 that opens and closes the valve seat hole 2 by operating a flow rate adjusting handle 5 linked to a valve rod 4. At the same time, a lift type valve mechanism A is formed by connecting the first water supply chamber 3 and the water supply passage 7 communicating with the clean water pipe.

A valve chamber 8 which is in constant communication with the second water supply chamber 3a is laterally provided on one side of the second water supply chamber 3a, and an inner peripheral surface of the valve chamber 8 is provided below the top plate c. A tap rod interposed in the valve chamber 8 by opening a first valve port 11 communicating with the branch chamber 10 for supplying water to the installed water heater B through the water supply pipe 9 and a second valve port 11a communicating with the mixing chamber 12 respectively. 13 is on the peripheral surface slightly smaller than the inner diameter of the valve chamber 8, corresponding to the first valve opening 11 and the second valve opening 11a, there are many on the mixing chamber 12 side and few on the branch chamber 10 side. It has a notched portion 13a that is eccentrically formed in a substantially half-moon shape so that a quantity of water can be supplied at the same time. Are linked so as to control the amount of open space.

The mixing chamber 12 mixes the water introduced from the second valve port 11 a with the hot water pushed up from the water heater B via the hot water supply pipe 15, and an outlet 16 is opened on the upper surface to form a bag. A water discharge pipe 18 is rotatably attached by a nut 17.

Although the water purifier D can be attached to the water discharge port 19 of the water discharge pipe 18 for discharging the fluid, as shown in FIG. 3, the water is discharged to the outside slightly above the bottom surface 19a of the water discharge port 19 to the outside. A plurality of small holes 20 are provided for this purpose.

FIG. 4 shows another embodiment of the water discharge port. The water discharge port 19 has a rectifier 21 interposed therein, and a plurality of cutouts 22 are formed in the bottom surface 19 a in contact with the packing 27. The fluid is discharged to the outside.

Now, when the lever 14 shown in FIG. 1 is operated in a predetermined direction, the stopper rod 13 connected to the lever 14 is moved to a position where the first valve opening 11 and the second valve opening 11a shown in FIG. 2 are opened. Change. When the valve rod 4 of the valve mechanism A is continuously operated by the flow rate adjusting handle 5 in the valve opening direction to raise the valve body 6 and open the valve seat hole 2, the water reaching the first water supply chamber 3 becomes the second water supply. It enters into the valve chamber 8 through the chamber 3a and advances into the branch chamber 10 and the mixing chamber 12 from the first valve port 11 and the second valve port 11a which are opened beforehand. In this case, a large amount of water that has advanced to the branch chamber 10 is press-fitted into the lower part of the water heater B via the water supply pipe 9, and the rising water pressure sends the hot water in the upper part of the water heater B to the mixing chamber 12 via the hot water supply pipe 15. In this way, the hot water reaching the mixing chamber 12 is appropriately mixed with the water that has entered from the second valve port 11a, and is supplied from the water discharge pipe 18 while changing into the mixed water of an appropriate temperature.

Next, the water purifier D shown in FIG. 3 is attached to the water discharge pipe 18 of the main stop type mixed faucet 1 by an auxiliary tool 23, a nut 24 and a plurality of tightening screws 25, and a packing arranged at the inflow port 26. When 27 is pressed against the bottom surface 19a of the water discharge port 19 and operated as described above, the rotary valve 29 connected to the lever 28 rotates to pass the purified water filtered by the filter medium 31 and the filter medium 31 from the outlet 30 of the water purifier D. Either a normal fluid or a sprinkling fluid that does not pass through the filter medium 31 is supplied from the sprinkling holes 32. Then, when the lever 28 of the water purifier D is operated to the water stop position shown in FIG. 3 while the valve mechanism A of the main stop type mixed faucet 1 is in the open state, the supply of the fluid from the outlet 30 or the water spray hole 32 is stopped. To be done. However, since the flow rate adjusting handle 5 is in the open state, the water is pressurized in the water heater B and pressure is applied to the inside of the water heater B, but the fluid is discharged from the small hole 20 of the water discharge pipe 18. Therefore, the user can recognize that the water purifier D cannot be attached to the main stop type mixed faucet due to water leakage from the small hole 20.

[0017]

[Effect of device]

 Since the present invention has the above-mentioned configuration, it has the following advantages. (1) If a water purifier is attached to the tip of the water discharge pipe of the main stop type water faucet and the flow control handle of the water faucet is open and the lever of the water purifier is operated in the direction to stop water, a small hole is provided in the water discharge pipe. Since the fluid is discharged to the outside from this, it can be recognized that a water purifier with a water stop function cannot be attached to this mixed faucet, and the water heater damage accident that occurs when the water purifier is attached can be recognized. It can be prevented. (2) Compared to the conventional original stop type mixed faucet, a simple improvement that only a small hole is provided at the tip of the discharge pipe is required, and the mixed faucet can be used as it is by simply replacing the discharge pipe. Have.

[Brief description of drawings]

FIG. 1 is a front cross-sectional view of a master stop type mixed faucet of the present invention.

FIG. 2 is a vertical cross-sectional view of the main stop type mixed faucet of the present invention.

FIG. 3 is an explanatory diagram of a case where a water purifier is attached to the original stop type mixed faucet of the present invention.

FIG. 4 is an explanatory diagram of another embodiment.

FIG. 5 is an explanatory diagram of a conventional technique.

FIG. 6 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 1 Shut-off type mixed faucet 12 Mixing chamber 18 Water discharge pipe 20 Small hole B Water heater D Water purifier

Claims (1)

[Scope of utility model registration request] 1. Cold water is branched into a mixing chamber and a water heater by operating a mixing faucet installed on the primary side of the water heater, and hot water pushed up from the water heater is mixed with cold water in the mixing chamber and discharged. In the original stop type mixed water faucet that discharges from a water pipe, the water discharge pipe is provided with a small hole for letting the fluid escape to the outside when the water purifier attached to the tip is in the water stop state. Water purifier installation prevention device on the stopper.