JPH0814421A - Water cock with water treatment device - Google Patents

Abstract

PURPOSE:To provide a water cock to be equipped with a water treatment device, such as a purifier, which offers easiness to handle and also a wide degree of freedom in installation. CONSTITUTION:The arrangement includes a body 3 of water cock to be connected at least with a water supply source and equipped with a discharge part and a water treatment device 2 which applies a certain processing to the crude water supplied to the cock body 3, wherein the water treatment device 2 is located on the same plane as the cock installation surface or over or ahead it and is connected with the cock body 3 through a flow path for feeding back the water to the cock body 3 upon processing with this device 2. The cock body 3 is furnished with a valve element which changes over the flow of the supplied crude water from a flow path leading to the discharge part provided at the termination of the internal flow path to the device 2 side and vice versa, and the cock body 3 is manipulated so that either the crude water is forwarded without processing or the processed water from the device 2 is discharged from a common discharge part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a faucet which can be used by connecting to a water treatment device for purifying raw water from a water supply source or ionizing it by electrolysis.

[0002]

2. Description of the Related Art A water purifier or an alkaline ion generator is attached to a faucet to discharge ordinary raw water and purified water such as purified purified water. Widely used up to.

As a faucet facility for treating such raw water and discharging it, for example, there are those described in Japanese Utility Model Publication No. 2-6867 and Japanese Utility Model Publication No. 63-66676.

The faucet described in the former is provided with a water purifier in addition to the existing faucet, and a branching tool is attached to the tip of the water discharge pipe of the faucet to connect a flow path to the water purifier. The branching tool is equipped with a rotary operation type handle for switching the flow from the water discharge pipe to the flow path that directly discharges the water or to the water purifier, and has a flow path configuration in which a hose connects between the water purifiers.

Further, the water faucet described in the latter publication has a structure in which a flow path is directly connected to a water purifier from a water supply flow path of a water faucet main body instead of a branch from a water discharge pipe. Similarly, a water purifier is installed separately from the faucet that discharges raw water.

Further, not only raw water and hot water but also treated purified water can be discharged from the faucet, for example, a hot and cold water mixing faucet described in Japanese Utility Model Publication No. 5-35250. This is provided with a flow path connected to each of a water supply source and a hot water supply source, and a flow path that sends the supply water to the water purifier and returns it to the faucet side again. It can be applied to equipment stored in a cabinet.

[0007]

[Problems to be Solved by the Invention]
In the faucet described in Japanese Patent No. 6867, since a branching tool is provided at the tip of the water discharge pipe, a moment due to the length of the water discharge pipe is likely to exert a large load on the base end portion when the handle is rotated. For this reason, there is a possibility that the packing inside the faucet or other members may be deformed or bent due to the influence of the load to cause water leakage or the like. Further, since the hose between the branching tool and the water purifier is arranged along the water discharge pipe, if it is attached not only to the external surface but also to the sink, it is likely to interfere with the washing work.

Further, in the faucet disclosed in Japanese Utility Model Laid-Open No. 63-66676, since the flow path from the main body of the faucet to the water purifier is connected, water leakage is greater than in the case where a branch tool is provided in the water discharge pipe. The problem of appearance and appearance is solved.

However, the faucet is a spout of only raw water or mixed water with hot water, and the purified water is spouted from a separate water purifier. For this reason, for example, in the case of newly attaching to the sink, the water purifier cannot be properly arranged with respect to the sink due to the positional relationship with the faucet already installed facing the sink. Can happen. Also, the position of the water purifier with respect to the faucet will be limited,
When a water purifier is newly installed on the existing sink, such adverse effects are likely to occur.

Further, in the equipment of Japanese Utility Model Publication No. 5-35250, since water including the purified water can be discharged from the faucet, there is no layout problem for the sink and the like as compared with the case where the water purifier is separately installed. However, when the water purifier is housed inside a cabinet or the like, if the water purifier has various functions and is operated as necessary, the usability is rather deteriorated. Also, in addition to the water supply and hot water supply pipes, pipes to the water purifier and pipes to return to the faucet are required, so the holes for pipes to be opened in the counter when installing on the sink will be large, and the construction will be large depending on the specifications of the sink.

As described above, a faucet provided with a water purifier or the like has inconveniences in terms of operability and incorporation into a sink or the like, and especially in a facility where a water purifier or the like is newly installed on an existing faucet. This tendency is an obstacle to installation.

An object to be solved in the present invention is to provide a water faucet provided with a water treatment device such as a water purifier, which is easy to use and has a high degree of freedom in installation.

[0013]

According to the present invention, there is provided a faucet body which is connected to at least a pipe from a water supply source and has a discharge part, and raw water supplied to the faucet body by a pipe from the water supply source. A water treatment device for performing a required treatment, the water treatment device being located on the same surface as the installation surface of the faucet body or above or in front of the installation surface, the faucet body and the water treatment device Are connected by a flow path system that circulates the water treatment device and returns to the faucet body, and the faucet body has a flow path for directing the supplied raw water toward the discharge part and the water treatment device. It is characterized by comprising a valve element which is switched to a flow path system to the side and which sends the treated water flowing back from the water treatment device to the discharge part.

The faucet body is a hot and cold water mixing faucet in which flow passages are respectively connected to the hot water supply source and the hot water supply source, and is a sliding valve type of a fixed valve plate and a movable valve plate in which valve elements are arranged in the internal flow passage. In addition, the movable valve plate can be connected to the operating lever.

Further, the faucet body of the hot and cold water mixing faucet can be attached to an existing faucet provided with a flow passage from the water supply and hot water supply source and a water discharge part, and a valve element is provided with a flow passage from the water supply and hot water supply source and discharge. It is also possible to adopt a configuration in which the flow path to the section is placed in communication.

Furthermore, the flow path system provided between the faucet body and the water treatment device may be connectable at any arbitrary position of at least two around the faucet body.

[0017]

[Function] The raw water supplied to the faucet body is discharged directly from the discharge section located at the end of the internal flow path of the faucet body, and is also circulated to the water treatment device side to be treated from the discharge section on the faucet body side. Water can also be discharged. In this way, since the raw water and the treated water can be discharged from the common discharge part, compared to when the water is discharged from the faucet side and the water treatment device side respectively, the water discharge position is one and the usability is improved and the water treatment device is improved. Can be laid out regardless of the position of the faucet body, increasing the degree of freedom in installation. When the faucet body is set up on, for example, a kitchen counter, the water treatment device is placed on or above the counter surface near the faucet body, or when the faucet body is connected and fixed to a wall pipe. Then, similarly, if you arrange it on the counter or in front of the wall,
Water treatment equipment can be installed side by side without any work on the counter or wall, improving installation workability.

Further, the valve element of the faucet body is a sliding valve type hot and cold water mixing faucet in which two valve plates are superposed, and one of the valve plates is moved by a lever operation to discharge raw water or treated water. By enabling switching, usability is further improved.

Furthermore, if the faucet body is attached to the existing faucet which has only the water supply, hot water supply passage and water spouting portion so that the flow path can be connected, the water supply pipe already installed or There is no need to modify the hot water supply pipe, and the existing hot and cold water mixing faucet can be easily reformed into one with a water treatment function.

Further, if the flow path connected to the water treatment device can be connected to, for example, either the left side or the right side of the faucet body, the faucet body of the faucet body can be improved especially when the existing faucet is reformed. Even when the position is fixed and the layout of the water treatment device is restricted, the connection of the flow paths is simplified and the layout flexibility of the water treatment device itself is improved.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of an essential part showing equipment equipped with a faucet and a water treatment device of the present invention in a sink.

In the figure, a faucet 1 is arranged at a position facing a sink 51 provided on a counter 50 of a sink, and a water treatment device 2 is provided on the counter 50 slightly away from the faucet 1 on the right side. The water treatment device 2 receives raw water from the faucet 1 and produces and treats it into, for example, fresh water, acidic water, alkaline ionized water, and the like, and has an operation panel 2a on its front surface for setting a treatment target. Prepared, power cord 2
b is connected to an outlet.

The faucet 1 is a counter 5 in this embodiment.
The existing product installed at No. 0 is reformed into one that can be connected to the water treatment device 2. FIG. 2 shows the procedure of this reform.

The existing water faucet 40 is provided with a water discharge pipe 42 in a main body block 41 and a cover 43 which is detachable from the main body block 41, as shown in FIG.
It is a conventionally well-known one having a cartridge 44 ((b) in the same figure) which is incorporated in the main body block 41 and connected to the flow path inside the cover 43. In this cartridge 44, two slide valve type valve plates for mixing water and hot water to be supplied are arranged in an overlapping manner, and one valve plate is operated by a lever 45, whereby water and hot water are mixed. Set the mixing ratio and flow rate with.

When the existing faucet 40 is to be reformed into a combination with the water treatment apparatus 2, the cartridge 44 is disassembled as shown in FIG.
Instead of this, the faucet body 3 shown in FIG. 3C is connected and fixed to the body block 41.

In contrast to the existing faucet 40 equipped with the faucet body 3,
The water treatment device 2 is installed as an arrangement mounted on a counter 50 as shown in FIG. With this arrangement,
A counter 5 is provided for piping between the faucet body 3 and the water treatment device 2.
It can be done only on 0, and the work of opening a pipe hole or the like in the counter 50 becomes unnecessary. In addition, the existing faucet 40
Even if it is a wall-fixed type, if it is placed on the counter 50 or arranged as a wall-mounted type, it is not necessary to newly provide a pipe hole in the wall.

In the embodiment shown in FIG. 1, the faucet body 3 is incorporated into the existing faucet 40 for reforming. However, when the faucet body 3 itself is replaced with a finished product which can be used alone. However, the positional relationship with the water treatment device 2 is the same as in the previous example.

FIG. 3 is a vertical sectional view of the left side surface of the faucet body 3, FIG.
Is a bottom view thereof. 5, 6 and 7 are sectional views taken along the lines AA, BB and CC of FIG. 4, respectively, and FIG. 4A and 4B are sectional views taken along the line EE of FIG.

As shown in FIGS. 4 and 7, a water supply port 3a, a hot water supply port 3b, and a discharge port 3c are opened at the lower end of the faucet body 3, and packings 3a-1, 3b-1,
3c-1 is attached. Then, when the faucet body 3 is fitted into the body block 41 of the existing faucet 40 and fixed in a predetermined posture, the water supply port 3a and the hot water supply port 3b are respectively provided from below the counter 50. It communicates with a pipe (neither is shown). Further, the discharge port 3c passes through the internal flow path of the main body block 41 and the water discharge pipe 4
The flow path is connected to 2 and is connected.

The lower side of the faucet body 3 is divided into four chambers as shown in FIG. 8 to form a water supply chamber 3d and a hot water supply chamber 3e which communicate with the water supply port 3a and the hot water supply port 3b, respectively, and will be described later. A portion located downstream of the valve unit is provided with a preliminary chamber 3f connecting a flow path to the water treatment device 2 side and a discharge chamber 3g communicating with the water discharge pipe 42 via the discharge port 3c.

On the upper side of the faucet body 3 divided by the partition walls for the respective chambers 3d to 3g, the housing 4 of the valve unit is incorporated as a cartridge type. At the bottom of the housing 4, as shown in FIG. 6, a water inlet 4a, a hot water inlet 4b, a mixed water outlet 4c and a treatment water outlet 4d are provided. The water inlet 4a and the hot water inlet 4b are connected to the water supply chamber 3d and the hot water supply chamber 3e, respectively, and the mixed water outlet 4c is connected to the discharge chamber 3g and the treatment water outlet 4d is connected to the preliminary chamber 3f. 4 is incorporated into the faucet body 3.

A fixed valve plate 5 is fixed at a fixed position on the bottom of the housing 4, and a movable valve plate 6 is placed on the fixed valve plate 5.
Are arranged so that the movable valve plate 6 can slide with respect to the fixed valve plate 5. These fixed valve plate 5 and movable valve plate 6 are made of ceramics, and as is widely known in the conventional single-lever hot and cold water mixing faucets, they are formed by a combination of matching holes and non-matching holes. It is possible to open and close the flow path, adjust the flow rate, and set the mixing ratio of hot water and water. In addition to such a function, the flow path from the water supply chamber 3d to the auxiliary chamber 3f is provided with a structure for opening and closing completely independently of other flow paths.

In order to supply water from the water supply chamber 3d to the spare chamber 3f, for example, as can be seen from FIG. 6, the fixed valve plate 5 has water holes 5a, hot water holes 5b and mixed water holes 5c. In addition, a treated water hole 5d is provided. Water hole 5a and hot water hole 5
b corresponds to the water inlet 4a and the hot water inlet 4b of the housing 4, respectively, and the mixed water hole 5c and the treated water hole 5d are located so as to correspond to the mixed water outlet 4c and the treated water outlet 4d, respectively. .

On the other hand, the movable valve plate 6 is provided with a single hole or about three holes and the positions of these holes or the movable valve plate 6 itself are changed so that the fixed valve plate 5 has a water hole 5a and a hot water hole 5b. The opening / closing and the size of the opening can be changed, and such a function is exactly the same as that of the valve element in the conventional single-lever type hot and cold water mixing faucet. That is, the movable valve plate 6 is movable in the left-right direction in FIG. 1 and is capable of pivoting about its core.
By combining these movements and turning operations, it is possible to open and close the flow path and change the flow path area. And
In addition to these functions, for example, as shown in FIG. 1, the treated water hole 6a is provided with an appropriate shape. This treated water hole 6a is adapted to be aligned with the treated water hole 5d of the fixed valve plate 5 by moving the movable valve plate 6 in a predetermined direction, and at this time, all the other water holes are provided. 5a,
The hot water hole 5b and the mixed water hole 5c have a structure that can be set in a closed state by the movable valve plate 6. As a result, water can be sent from the water supply chamber 3d to only the spare chamber 3f.

The movement of the movable valve plate 6 is operated by a lever 7 protruding from the upper end of the faucet body 3. And FIG.
As shown in FIG. 7, a shifter 7a is installed between the lever 7 and the movable valve plate 6 to connect them to each other, and the operating force of the lever 7 can be transmitted to the movable valve plate 6 via the shifter 7a.

When the lever 7 is swung on the shifter 7a to switch from the normal spouting of the mixed water to the water supply to the water treatment device 2 side and vice versa, a person who uses this spouting form switching can be used. Equipped with a mechanism for transmitting. That is,
As shown in FIG. 5, a retainer 7b having a concave cross section is fixed to the side surface of the shifter 7a, and a ball 7c is movably incorporated therein, and the ball 7c is biased outward by a spring 7d. A shallow groove 4e into which the ball 7c falls is provided on the inner peripheral wall of the housing 3 corresponding to the retainer 7b. The position of the groove 4e is such that the ball 7c is aligned and falls when the lever 7 is turned 45 ° to the right from the posture in the center thereof.

At a part of the spare chamber 3f and the discharge chamber 3g, which is located on the back side of the faucet body 3, as shown in FIG. 1, the supply hose 8 connected to the water treatment device 2 and the recovery hose 8 are collected. Connect the hoses 9 respectively. Further, a connection structure as shown in FIG. 9 is provided so that these hoses 8 and 9 can be connected to either the right side or the left side of the faucet body 3.

In this connection structure, female screw holes 10a and 10b are opened at both left and right ends of the auxiliary chamber 3f, and in the illustrated example, a connector 10c for connecting the supply hose 8 is screwed into the female screw hole 10a, and the other end is screwed in. The plug 10d is screwed into the female screw hole 10b to close it. The same applies to the case of the discharge chamber 3g, in which the connector 1 is inserted into the female screw hole 11a.
The recovery hose 9 can be connected by screwing in 1c, and the other female screw hole 11b is closed by the plug 11d.

With such a connecting structure, as shown in FIG. 10 (a), the supply / recovery hoses 8 and 9 are connected to the right side of the faucet body 3 (corresponding to FIG. 9). b)
You can connect to the left side like. Therefore, in the positional relationship between the faucet body 3 and the water treatment device 2 of FIG. 1, if the connection of the hoses 8 and 9 of FIG. 10A is adopted, the length of the hoses 8 and 9 can be appropriately shortened, No bulkiness.

The supply hose 8 and the recovery hose 9 are fitted to the connectors 10c and 11c, respectively, and simple clips 12a and 12b made of, for example, synthetic resin (see FIG. 10).
Fixed by restraint. As an example of these supply hoses 8 and 9, those having a sectional structure shown in FIG. 11 can be used.

In FIG. 11A, the supply hose 8 and the recovery hose 9 are common parts made of the same material, and the outer layers 8a and 9a made of vinyl chloride and the vinyl chloride-based material having antibacterial properties are used. The inner layers 8b and 9b have a two-layer structure, and the layers 8a, 9a, 8b and 9b are integrally joined with net-like blades 8c and 9c for imparting pressure resistance.

If such a vinyl chloride material is used, the supply hose 8 and the recovery hose 9 can be manufactured as soft ones, and piping between the faucet body 3 and the water treatment device 2 can be easily performed. Further, although vinyl chloride is inferior in mechanical strength, it can be compensated by incorporating the blades 8c and 9c, and pressure resistance against normal tap water pressure is secured.

In the example of FIG. 9B, the supply hose 8 is the same as the previous example, but the recovery hose 9 has an outer layer 9d made of vinyl chloride and an inner layer 9e made of polyethylene with an antibacterial property. It is joined by an adhesive 9f.

Since the inner layer 9e made of polyethylene is harder than vinyl chloride, in order to make the recovery hose 9 easy to bend, the inner layer 9e is formed into a thin film. In addition, the water that has been treated through the recovery hose 9 side is
Since it corresponds to the secondary side flow path of the water treatment device 2, the pressure is somewhat attenuated, so that a reinforcing structure such as a blade is unnecessary. Since the inner layer 9e is made of polyethylene with antibacterial properties, the antibacterial effect is much larger than that of the case where vinyl chloride is used, and it is an optimal flow path structure for sending treated water to its supply destination. is there.

In the above structure, when raw water or mixed water of hot water and hot water is used, the movable valve plate 6 is moved by moving the lever 7 up and down as in the case of the conventional single lever type hot and cold water mixing faucet. By moving the lever to the left or right or rotating the lever 7 to change the posture of the movable valve plate 6, the flow path is opened or closed and the temperature and flow rate of the mixed water are adjusted. In this case, both when supplying only the raw water and when discharging the mixed water with the hot water, the raw water and the mixed water both flow into the discharge chamber 3g after passing through the housing 4.
After this, the water is directed to the water discharge pipe 42, and there is no inflow of water to the spare chamber 3f.

When the raw water is treated by the water treatment device 2 and then discharged, the lever 7 is operated in the direction suitable for this treatment. For example, as shown in FIG. 12A, this operation is performed by moving the movable valve plate 7 to the left side in FIG. As shown in (b) of (2), it can be a combination of two conditions of making a large turn to the right.

That is, as shown in (b) of the figure, when the lever 7 is in the range of about 45 ° from the center position to the left and right, water, hot water and mixed water thereof pass through the inside of the housing 4 and the discharge chamber 3g. Fixed valve plate 5 and movable valve plate 6 so that
The relationship between the positions of the respective flow path holes is determined. Then, when it is turned to the right and becomes about 45 ° or more, the treated water hole 6a of the movable valve plate 6 shown in FIG.
It is aligned with the treated water hole 5d, which allows only the flow of water from the water supply chamber 3d to the auxiliary chamber 3f. By enabling the operation from the upstream side toward the discharge chamber 3g so that such a water flow field can be provided, water can be supplied to the water treatment device 2 by turning the lever 7 to the right.

The raw water supplied to the preparatory chamber 3f is sent to the water treatment device 2 by the supply hose 8 for treatment, is returned to the discharge chamber 3g via the recovery hose 9, and is finally discharged from the water discharge pipe 42. To be done.

Here, when switching from raw water to water treatment and vice versa, the groove 3e and the shifter 7 shown in FIG. 5 are used.
The turning of the lever 7 is temporarily given by the ball 7c provided on the a side. That is, if the position of the groove 4e is determined so that the ball 7c falls into the groove 4e when the lever 7 turns about 45 ° from its center position in FIG. You can feel it with your hand. Therefore, when the raw water is used, it is possible to prevent an erroneous operation without accidentally switching to the water treatment device 2 side as it is or falling into the opposite situation.

In this way, by reforming the new faucet body 3 from the existing faucet 40 while leaving only the body block 41 and the water discharge pipe 42, raw water and water treatment are performed from the water discharge pipe 42 integrated with the faucet body 3. Both of the treated water passing through the device 2 can be selectively discharged. Therefore, as in the existing case, the water discharge is maintained at the most suitable position with respect to the sink 51, which is more convenient than the case where the water purifier is arranged separately from the faucet as shown in the conventional example. Get better.

Further, by placing the water treatment device 2 at a position close to the faucet, the intended treatment can be easily selected and used by the operation panel 2a, and the operation can be switched in the case of being stored in the cabinet. Is complicated, while
Such a problem is solved. Furthermore, since the treated water flows back again after the flow path from the faucet body 3 to the water treatment device 2 is branched, it is not necessary to open an opening for a new pipe in the counter 50, and it is necessary for reform. Will also be easier.

Then, as shown in FIG. 10, supply and recovery hoses 8, 9 are provided on both the right and left sides of the faucet body 3.
Can be connected. Therefore, even if the position of the existing faucet 40 is fixed and the position of the water treatment device 2 can be set only to either the right side or the left side thereof, the hoses 8 and 9 can be freely connected and unnecessarily long. It will never happen.

[0053]

According to the present invention, since the raw water and the treated water that has passed through the water treatment device can be discharged from the discharge portion provided on the side of the faucet body, it is possible to improve the usability by combining the discharge positions into one. it can. Further, since the water treatment device does not directly contribute to the discharge of treated water, the water treatment device can be laid out regardless of the position of the faucet body, and the degree of freedom of installation can be increased. In addition, when the faucet body is fixed to the installation surface such as the kitchen counter or the wall, it is not necessary to construct a hole for piping in the counter or wall forming the installation surface. It is suitable when renovating equipment.

If the valve element of the faucet body is a sliding valve type hot and cold water mixing faucet in which two valve plates are superposed, and the operation is performed by a single lever, raw water and treated water are treated. Operations such as switching can be easily performed.

Furthermore, if the faucet body can be attached to the existing faucet, the work such as reworking of the water supply pipe and the hot water supply pipe is not necessary, and the remodeling work is simplified. The flow path connected to the water treatment device can be connected at any position such as the left side or the right side of the faucet body, so that the layout of the faucet body and the water treatment device is related. Connection is easy and the constraints of the layout itself are eliminated.

[Brief description of drawings]

FIG. 1 is a diagram showing a facility example of a faucet equipped with a water treatment device of the present invention.

FIG. 2 is a diagram showing a procedure for reforming a faucet body from an existing faucet.

FIG. 3 is a left side vertical cross-sectional view of the faucet body.

FIG. 4 is a bottom view of the faucet body of FIG.

5 is a cross-sectional view taken along the line AA of FIG.

6 is a cross-sectional view taken along the line BB of FIG.

7 is a vertical sectional view taken along the line CC of FIG.

8 is a cross-sectional view taken along the line DD of FIG.

9 is a vertical sectional view taken along the line EE in FIG.

FIG. 10 is a diagram showing two examples of the connection structure of the hose to the faucet body.

FIG. 11 is a schematic vertical cross-sectional view showing an example of the structure of the supply and recovery hoses, FIG. 11 (a) is an example of a common part having an inner layer made of vinyl chloride, and FIG. 11 (b) is An example in which a recovery hose is provided with an inner layer made of polyethylene is shown.

FIG. 12 is a diagram showing the operating procedure of the lever, in which (a) is the state in which the tip of the lever is pushed down to supply water to the water treatment device, and (b) is the raw water or mixed water. And shows the turning range of the operating lever for treated water.

[Explanation of symbols]

 1 Faucet 2 Water Treatment Device 3 Faucet Main Body 4 Housing 5 Fixed Valve Plate 6 Movable Valve Plate 7 Lever 8 Supply Hose 9 Recovery Hose 40 Existing Water Faucet 41 Body Block 42 Water Discharge Pipe 50 Counter 51 Sink

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshiyuki Murahashi 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka Prefecture Totoki Kikai Co., Ltd. (72) Inventor Yukihiro Muroya Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka 2-1, 1-1 Totoki Equipment Co., Ltd.

Claims (4)

[Claims] 1. A water faucet body which is connected to at least a pipe from a water supply source and has a discharge part, and water for applying a required treatment to raw water supplied to the water faucet body by a pipe from the water supply source. A water treatment device, the water treatment device is located on the same surface as the installation surface of the faucet body or above or in front of the installation surface, and the water faucet body and the water treatment device are connected to the water treatment device. The water faucet body is connected by a flow path system that circulates and returns to the water faucet body, and the faucet body has a flow path system that directs the supplied raw water toward the discharge unit and a flow path system to the water treatment device side. A faucet equipped with a water treatment device comprising a valve element for switching and returning treated water flowing back from the water treatment device to the discharge part. 2. The faucet body is a hot and cold water mixing faucet in which flow passages are respectively connected to a hot water supply source and a hot water supply source, and a fixed valve plate and a movable valve plate in which the valve element is arranged in an internal flow passage are slidable. 2. A water faucet equipped with a water treatment device according to claim 1, wherein the water treatment device is of a valve type and the movable valve plate is connected to an operating lever. 3. The faucet body can be attached to an existing faucet having a flow path from the water supply and hot water supply source and a water discharge part,
3. A water faucet with a water treatment device according to claim 1, wherein the valve element is arranged in communication with a flow path from the water supply and hot water supply source and a flow path to the discharge part. 4. The water treatment system according to claim 3, wherein a flow path system provided between the water faucet body and the water treatment device can be connected at at least two arbitrary positions around the water faucet body. A faucet with an attached device.