CN1511238A

CN1511238A - Tap structure

Info

Publication number: CN1511238A
Application number: CNA998132942A
Authority: CN
Inventors: 约夫・格兰诺特; 约夫·格兰诺特
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-16
Filing date: 1999-11-15
Publication date: 2004-07-07
Anticipated expiration: 2019-11-15
Also published as: KR20010092742A; WO2000029769A2; CN1262776C; JP2002530556A; EP1131573A2; WO2000029769A3; AU1175400A; BR9916603A; EP1131573A4

Abstract

A water tap particularly for kitchen sinks includes a body member attachable to the kitchen sink and having first and second ports for connection to hot and cold water supply lines, respectively, of the kitchen sink and a third port for connection to a third water supply line; and a handle rotatably mounted about a longitudinal axis with respect to the body member and operatively connected to a valve assembly such that: (a) rotating the handle to a selected position within a first operating region connects the first and second ports to a mixing chamber and controls the proportions of the hot and cold water supplied to the mixing chamber from the respective hot and cold water supply lines for discharge through a spout; and (b) rotating the handle to a selected position within a second operating region connects the third port to the spout for discharging water from the third water supply line.

Description

Structure for water tap

The present invention relates to water tap, in particular for the water tap of kitchen sink.

Typical kitchen sink comprises with water tap: a body member, and it can be installed on the kitchen sink and have first and second mouthfuls of the hot and cold water supply tube that is used for being connected respectively to kitchen sink; One is connected to first and second mouthfuls and be used for the mixing arrangement of mixing water herein; One is used for from the discharge nozzle of this tap discharge mixing water; And manually operated valve that is used for controlling current from first and second mouthfuls to mixing arrangement and discharge nozzle.

In recent years, occurred using treated water, promptly stood special filtration treatment so that remove the trend that increases gradually of the water of foreign particle therefrom.Some special equipments need be supplied such treated water usually, and this is accompanied by a significant cost of equipment.U.S. Patent No. 5,417,348 disclose and a kind ofly can also distribute the water tap of filtered water except the hot water or cold water of standard, but this water tap comprises a plurality of hot water, cold water and seperating vales of filtered water supply of being used for separately, and each valve has its hand control valve operator.

An object of the present invention is to provide a kind of water tap that is specifically designed to kitchen sink, it has improved structure so that distribute a kind of the 3rd liquid selectively except the hot water or cold water of standard, for example be treated water, carbonization water or beverage, this water tap comprises a common manual station, and it can carry out traditional operation and select so that make.Another object of the present invention provides a kind of water tap that is specifically designed to kitchen sink, it can be used for selecting a kind of the 3rd liquid except that the hot water or cold water of standard, and the electric loop selected of response of its control is so that indicate described selection and/or control a pump or other electric installation that response is selected.

According to an aspect of the present invention, provide a kind of water tap that is used in particular for kitchen sink, it comprises: a body member, and it can be installed on the kitchen sink and have first and second mouthfuls of the hot and cold water supply tube that is used for being connected respectively to kitchen sink; A mouth pipe, it is used for from leading discharge water; One is used for the mixing chamber of mixing water herein, it have one with first and second mouthfuls of inlets that are communicated with and an outlet that is communicated with the mouth pipe; One the 3rd mouthful, it is used for being connected to one the 3rd water supply tube; A valve assembly, it is used for controlling selectively water and discharges by the mouth pipe from mixing chamber and the 3rd mouthful; And handle, it can be installed and be operably connected on the valve assembly rotatably around the longitudinal axis with respect to body member, thereby: (a) a chosen position in rotating handles to one first operating range just connects first and second mouthfuls and is fed to mixing chamber to mixing chamber and control from separately hot and cold water supply tube so that the ratio of the hot and cold water by the discharge of mouth pipe; And (b) rotating handles just connect to a chosen position in one second operating range the 3rd mouthful to the mouth pipe so that eject water from the 3rd water supply tube by the mouth pipe.

According to the further characteristics in description embodiment, handle also can be installed rotationally around the lateral shaft with respect to body member, and be operably connected on the valve assembly thereby when handle is in first operating range, pivot the flow speed of motion control, and also control flow speed from the 3rd inlet opening to the mouth pipe when handle is in second operating range from mixing chamber to the mouth pipe by it.

According to another aspect of the present invention, provide a kind of water tap that is used in particular for kitchen sink, it comprises: a body member, and it can be installed on the kitchen sink and have first and second mouthfuls of the hot and cold water supply tube that is used for being connected respectively to kitchen sink; A mouth pipe, it is used for from leading discharge water; One is used for the mixing chamber of mixing water herein, it have one with first and second mouthfuls of inlets that are communicated with and an outlet that is communicated with the mouth pipe; One the 3rd mouthful, it is used for being connected to one the 3rd liquid supply tube; Manual valve means, it is used for controlling selectively water and discharges by the mouth pipe from mixing chamber and the 3rd mouthful; An electric switch, it is driven by control valve unit when selecting to eject from the 3rd mouthful water; And an electric loop, it is selected and is driven by the electric switch response.

For example, electric loop can comprise an optical indicator, and it has been operated so that be energized so that indicate when distributing the 3rd liquid in manual valve means.The electricity loop can also comprise an electromagnetic steering valve, and it is energized so that control the 3rd liquid supply tube, perhaps comprises a pump, and it is energized so that from the 3rd fluid supply pumping the 3rd liquid.

According to a further embodiment of the present invention who hereinafter introduces, tap further comprises a four-hole, and it is used for being connected to can be by one the 4th liquid supply tube of manual valve means selection.

As what hereinafter will more ad hoc introduce, water tap that constitutes according to aforementioned features can not only distribute the water from traditional cold, hot water service pipe, and can also distribute other liquid in a kind of mode effectively and easily, for example water of special processing, carbonization water, beverage or similar goods.

Further characteristics of the present invention and advantage will be very clear by hereinafter introducing.

With method for example the present invention is described with reference to the accompanying drawings, wherein:

Fig. 1 shows a kind of form of the water tap that constitutes according to the present invention;

Fig. 2 is the view that the II-II line along Fig. 1 dissects, and each mouthful that provides in Fig. 1 water tap is provided;

Fig. 3 and 4 is similar but show the view of a second embodiment of the invention with Fig. 1 and 2 respectively, and described second embodiment makes this water tap can distribute two kinds of liquid except that the hot water or cold water of standard;

Fig. 5 and 6 is a third embodiment of the invention view corresponding to Fig. 1 and 2, and described the 3rd embodiment makes this water tap also be used as an extensible shower nozzle;

Fig. 7 is a further embodiment's of the present invention a exploded view;

Fig. 8 is the top plan view of Fig. 7 water tap; And

Fig. 9,9a, 9b and 9c show the working condition of Fig. 7 and 8 water taps.

Comprise the body member of an energy on kitchen sink 3 at the water tap shown in Fig. 1 and 2, its collectivity mark is 2.As shown in Figure 2, body member 2 comprises that one is used for being connected to the 1 of hot-water line 4a (Fig. 1), and second mouthful 5 of being used for being connected to cold feed pipe 5a.Body member 2 further comprises a mixing chamber 6 that is used for mixing the hot water or cold water before flowing to discharge nozzle 8 through mouth pipe 7.Both control hot water or cold water's ratio of the discharge water yield and discharge water by a tap handle 9.

With regard to above-described situation, such water tap is known, so the further details of its structure and working condition is no longer stated at this.

According to the present invention, body member 2 comprises that further totally is masked as 10 the 3rd mouthful in Fig. 2, and it is used for being connected on the 3rd liquid supply tube that is shown as 10a in Fig. 1.This 3rd liquid may be by the purified water of handling in advance and/or filtering.As an alternative, it also may be other liquid, for example carbonization water, beverage or ware.

The 3rd liquid by the 3rd liquid line 10a and mouth 10 supplies in body member 2 is controlled by a manually operated valve 11, and described valve 11 has a valve operator 12 that is installed in rotation on the body member.The 3rd liquid is fed to one second discharge nozzle 14 places at this mouth tube end by a supply bobbin 13 that extends through mouth pipe 7.Valve 11 should be manually opened when needs are fed to discharge nozzle 14 with the 3rd liquid from managing 10a.

Therefore, when the user wished to distribute water from hot water or cold water's supply tube 4a, the 5a of standard, the user answered the tap handle 9 of operation with traditional, so that in a conventional manner from discharge nozzle 8 discharge waters, valve 11 should be in its closed condition at the same time.When the user wished to distribute from the special processing water of liquid line 10a or other liquid, faucet handles 9 should be closed, and manually operated valve 11 should be opened by its operator 12, so can be supplied by discharge nozzle 14 from the special processing water of supply tube 10.

Valve 11 by operator 12 controls can have any conventional construction.For example, valve 11 may be a spherical valve, that is to say the ball of making a through hole, when this valve is in its opening state, its ball be rotated to make the hole with at the fluid passage being aligned of body member 2 internal valve opposite sides.

Fig. 1 describes some further devices, and these devices can be included in this water tap, so that this water tap also can be carried out certain electric control operation.Therefore, as shown in Figure 1, valve operator 12 is control valve 11 not only, but also control is connected on the control loop 16 that can control many devices and collectivity mark is 15 electric switch, for example a magnet reed switch.Usefulness as an example, Fig. 1 is described as controlling a visible light indicator 17, an Electromagnetically driven valve 18 and/or a pump 19 with control loop 16, and described optical indicator is used to refer to that valve 11 has been unlocked so that the liquid that produces from pipe 10a to discharge nozzle 14 is discharged; Described valve 18 is used for controlling the 3rd liquid supply tube 10a; And pump 19 is driven so that will pass through pipe 10a pump from the 3rd liquid of one the 3rd liquid supply source to discharge nozzle 14.

Fig. 3 and 4 describes a kind of modified structure, except the 3rd fluid port 10 that is connected to the 3rd liquid supply tube 10a, also comprises a four-hole 20 that is connected to one the 4th liquid supply tube 20a at this.For example, the 3rd liquid may be may be water through cryogenic treatment through heat treated water and the 4th liquid; As an alternative, the 3rd liquid may be treated water, and the 4th liquid may be carbonization water or a kind of beverage.

Except valve 11 and operator 12, Fig. 3 and 4 water taps of describing also comprise further valve 21 and the operator 22 that is used for controlling the supply of the 4th liquid.The 4th liquid also is to be supplied to discharge nozzle 14 by the pipe 13 that passes mouth pipe 7 as the 3rd liquid.

Fig. 3 describes the structure of another remodeling, in this body member 2 except electric switch 25 as operator 22 controls that a valve 21 of using by the electric loop of control above also is provided the switch 15 of described operator 12 controls by valve 11 with respect to Fig. 1.For example, electric switch 15 can be used for encouraging an optical indicator, and for example the indicator among Fig. 1 17 is at valve operator 12 and indicates when it is used for opening state from pipe 10a supply fluid; And being used for controlling a corresponding optical indicator (not shown), switch 25 indicates when it is used for opening state from the 4th liquid supply tube 20a supply fluid so that be at valve operator 22.

Fig. 5 is used for describing a water tap with Fig. 1 and 2 similar, and just discharge nozzle 8 is showerhead and is connected to hybrid battery 6 by an extensible flexible pipe 30, and described flexible pipe 30 passes mouth pipe 7 and extends to the shower nozzle that contains discharge nozzle 8.Therefore, this shower nozzle can be taken and use by manual, for example is used for washing plate or ware.

In all others, the water tap of in Fig. 5 and 6, describing with above with respect to Fig. 1 and 2 or with respect to Fig. 3 and 4 described same way as structuring and manipulations.

It is 40 water tap that Fig. 7 and 8 describes a kind of and Fig. 1 and 2 similar and collectivity mark, just handle 41 is selectively to move so that not only control the discharge of hot water and cold water, and controls that the 3rd liquid has for example been handled or filtered water, carbonization water, beverage or similar goods.

The water tap of describing in Fig. 7 and 8 40 comprises a body member that is fixedly mounted on the kitchen sink, and it schematically is masked as 42 in Fig. 7.Body member 42 comprises a mixing chamber, it is corresponding to the mixing chamber among Fig. 16, and be used for water by with Fig. 1 in mouth pipe 7 corresponding mouth pipes 43 arrive with Fig. 1 in corresponding and the discharge nozzle of nozzle 8 at this mouth tube end before mix the hot water or cold water who from they supply tubes separately, supplies.Mouth pipe 43 also comprises one second nozzle, and it is used for discharging the 3rd liquid from this water tap corresponding to the nozzle among Fig. 1 14.

Collectivity mark is a valve assembly of 44 in Fig. 7, be included in the shell 42 and be connected on the handle 41, thus kind of liquid and flow rate that control distributes from two nozzles in the mouth pipe 43.Therefore, as shown in Figure 8, handle 41 is rotated to two operating range OR with respect to body member 42 ₁And OR ₂When handle 41 at operating range OR ₁During interior the rotation, its distributes from the water of hot and cold water supply tube and controls their ratios separately so that control the temperature that is assigned with water whereby; And work as handle 41 at operating range OR ₂During interior the rotation, its distributes to come the 3rd liquid (being treated water) since mouth pipe 43.

Handle 41 also can be installed on the body assembly 42 rotationally around axle 45 (Fig. 7) with the extension of body member crosscut ground.And arrange like this, so that at each operating range OR ₁, OR ₂In, handle 41 all can rotate so that also control the flow rate of discharging by mouth pipe 43 around axle 45.

In Fig. 7, be described in valve assembly 44 structures in the body member 42 in further detail.Therefore, body member 42 comprises that above it fixed tray 51 of a fixing bottom-plate 50,, one cover rotatable dish 52 on the dish 51 and one and cover and take over a business 53 on the rotatable dish 52.Take over a business 53 and be shaped as and have a rectangular opening 54, its admits an end of a lever arm 55 that has rectangular cross section and can install rotationally around lateral shaft 45.Lever arm 55 extends through hole 54 and enters in rotatable dish 52 inner rectangular depression 56 that form.The opposite end 57 of lever arm 55 is stretched out by body assembly 42 and is received within the rectangular opening 58 that forms in the handle 41.

Arrange in this wise so that handle 41 can be around the longitudinal axes L A rotation of body member 42; And it goes back rotating lever arm 55 when rotating like this, thereby by means of the depression 56 in hole in the dish 53 54 and the dish 52 also rotating disc 53 and 52.In addition, handle 41 also can rotate around lateral shaft 45, and when pivoting like this, it is with respect to two dishes 53 and 52 of body member 42 crosscuts ground motion.Thereby dish 51 is fixed on the motion that stops on the base plate 50 with respect to this place by a plurality of base plate lugs 59 in the groove 60 that is received in dish 51, and therefore dish 51 is static with base plate 50 during dish 52 and 53 above-mentioned rotations of carrying out by means of handle 41 and transverse movement.

Base plate 50 be shaped as have one can be connected to the hot water service pipe (be 4a, hot water inlet 50a Fig. 1); One can be connected to the cold feed pipe (be 5a, cooling water inlet 50b Fig. 1); And one can be connected to the treated water supply tube (be 10a, Fig. 1) treated water inlet 50c.Base plate 50 further be configured as have one determine with a nozzle (promptly 8, Fig. 1) mixing chamber of Lian Tonging (promptly 6, large rectangle exit orifice 50d Fig. 1); (promptly 14, Fig. 1) treated water that is communicated with exports 50e with another nozzle with one.

Being fixed on dish 51 on the base plate 50 is made into and has respectively corresponding to hole 50a, 50b and 50c and inlet opening 51a, the 51b and the 51c that aim at them.Dish 51 also is made into and has respectively corresponding to base plate 50 exit orifice 50d and 50e and the exit orifice 51d and the 51e that aim at them.

Rotatable dish 52 is connected on the handle 41 that is used for rotating with transverse movement as mentioned above, it is made into and has one first recess 52a and one second recess 52b, the described first recess 52a is positioned so that cross-over connection two inlet opening 51a, 51b and exit orifice 51d, and the described second recess 52b is positioned so that span into oral pore 51c and exit orifice 51e.Dish 51 and 52 both make by stupalith in case promotion dish 52 with respect to dish 51 rotation and transverse movement.

Be presented in the working condition of the water tap of describing among Fig. 7 referring now to Fig. 9,9a, 9b and 9c.

Fig. 9 description is worked as handle 43 and is in its operating range OR ₁Neutral position and around dish 51 positions of lateral shaft 45 (Fig. 7) when turning to its fully open position (Fig. 8).In this position of handle, the large rectangle hole 52a in the rotatable dish 52 is cross-over connection hot water inlet hole 51a and cold water inlet hole 51b equally, and the hot water or cold water of equivalent is fed to this rectangular opening, thus be fed to mixing chamber (6, Fig. 1).Therefore, at the described handling position of Fig. 8, the hot water or cold water of equivalent can be fed to mixing chamber, and from this by mouth pipe 43 feed corresponding discharge nozzle (promptly 8, Fig. 1).

This dish should be noted that in this position of handle, the recess 52b of rotatable dish 52 does not aim at any one among treated water hole 51c and the 51e, so can stop treated water to flow to mouth pipe 43.

Rotatable dish 52 was with respect to the position of fixed tray 51 when Fig. 9 a description was moved clockwise when handle 43; And Fig. 9 b describes the relative position of these two dishes when this handle moves counterclockwise.Under the previous case that Fig. 9 a describes, more hot water is introduced into the recess 52a that constitutes mixing chamber, thereby increases the water temperature of discharging from the mouth pipe; And under the latter event that Fig. 9 b describes, more cold water is introduced into mixing chamber, thereby reduces the temperature of discharge water.

In the above two kinds of cases, the feeding speed and all can be reduced of water, its method is: around lateral shaft 45 rotatory handlings 41, so that laterally move rotatable dishes 52 with respect to fixed tray 51 whereby, thereby reduce these two inlet opening 51a and 51b by the cross-section area of recess 52a and exit orifice 51d cross-over connection.

When needs just distributed treated water, handle 41 was clockwise rotated, so that move to operating range OR ₂(Fig. 8).Fig. 9 c is described in the position of the rotatable dish 52 in position of this handle 41 with respect to fixed tray 51, herein as can be seen, present cross-over connection treated water inlet opening 51c of recess 52b and treated water exit orifice 51e, whereby treated water is introduced mouth pipe 43, and at this place from its respective nozzle (14, Fig. 1) discharge.It can also be seen that at this handling position, neither one inlet opening 51a and 51b be by recess 52a cross-over connection, therefore both do not had hot water, do not have again cold water and both mixtures be introduced into mouth pipe 43 and from its respective nozzle (promptly 8, Fig. 1) discharge.

Can find out that also at the handling position that Fig. 9 c describes, handle also can rotate so that reduce the cross-section area of two

hole

51c and 51e around its lateral shaft 45, and reduces the speed that treated water flows to its respective row delivery nozzle whereby.

Show also that in Fig. 8 body assembly 42 comprises an electric switch SW, when handle 41 is in operating range OR ₂Switch SW is driven when interior.Switch SW drives a control loop 61 to control optical indicator 62, valve 63 and/or pump 64 with same way as of above describing with respect to Fig. 1 and purposes.

Above introduced the present invention with reference to several embodiments, fairly obvious, these embodiments only are the usefulness of statement for example, can make many other variation, distortion and application of the present invention.

Claims

1. water tap that is used in particular for kitchen sink, it comprises:

A body member, it can be installed on the kitchen sink and have first and second mouthfuls of the hot and cold water supply tube that is used for being connected respectively to kitchen sink;

A mouth pipe, it is used for from described leading discharge water;

A mixing chamber, it have one with described first and second mouthfuls of inlets that are communicated with mixing water, and outlet that is communicated with described mouth pipe;

One the 3rd mouthful, it is used for being connected to one the 3rd water supply tube;

A valve assembly, it is used for controlling selectively water and discharges by described mouth pipe from described mixing chamber and the 3rd mouthful;

And a handle, it can center on one can rotatably install with respect to the longitudinal axis of described body member, thereby and be operably connected on the described valve assembly:

A) a chosen position in rotation described handle to one first operating range, it connects described first and second mouthfuls and is fed to described mixing chamber to described mixing chamber and control from separately hot and cold water supply tube so that the ratio of the hot and cold water by described mouth pipe discharge; And

B) the described handle of rotation is to a chosen position in one second operating range, it connect described the 3rd mouthful to described mouth pipe so that eject water from described the 3rd water supply tube by described mouth pipe.

2. according to the water tap of claim 1, it is characterized by, described handle also is rotatably mounted around the lateral shaft with respect to described body member, and be operably connected on the described valve assembly, thereby when described handle is in described first operating range, pivot motion by it, the flow speed of control from described mixing chamber to described mouth pipe.

3. according to the water tap of claim 2, it is characterized by, described handle is operably connected on the described valve, thereby when described handle is in described second operating range, pivot motion by it, also control flow speed from described the 3rd inlet opening to described mouth pipe.

4. according to the water tap of claim 1, it is characterized by, described valve assembly comprises:

A fixed component, it have one with described first mouthful first inlet opening that is communicated with, one and described second mouthful second inlet opening that is communicated with, one with described the 3rd mouthful of the 3rd inlet opening that is communicated with, first exit orifice and second exit orifice that directly is communicated with described mouth pipe that is communicated with described mouth pipe by described mixing chamber;

And rotating parts, it is connected on the described handle that is used for rotating whereby and has one first recess and one second recess, described first, second inlet opening of cross-over connection and described first exit orifice when described first recess is positioned at described handle and is in described first operating range, and described second recess is positioned at described handle when being in described second operating range described the 3rd inlet opening of cross-over connection and described second exit orifice.

5. according to the water tap of claim 4, it is characterized by, described handle also can be installed rotationally around the lateral shaft with respect to described body assembly, thereby and is operably connected on the described valve assembly when described handle is in described first operating range and pivots the flow speed of motion control from described mixing chamber to described mouth pipe by it.

6. according to the water tap of claim 4, it is characterized by, described handle is operably connected on the described valve, thereby when described handle is in described second operating range, pivot motion by it, also control flow speed from described the 3rd inlet opening to described mouth pipe.

7. according to the water tap of claim 1, it is characterized by, described mouth pipe comprises:

One first nozzle, it is connected to described mixing chamber by a first passage through described valve assembly;

And one second nozzle, it is connected to described the 3rd mouthful by a second channel through described valve assembly.

8. according to the water tap of claim 7, it is characterized by, described first nozzle is carried by a shower nozzle, and described shower nozzle can take off from the end of described mouth pipe, and is connected to described mixing chamber by an extensible flexible pipe that extends through described mouth pipe.

9. according to the water tap of claim 1, it is characterized by, described water tap further comprises an electric switch that is driven by described valve assembly when described handle is in described second operating range.

10. according to the water tap of claim 9, it is characterized by, described water tap further comprises an optical indicator by the excitation of described electric switch, so that indicate when described handle is in described second operating range.

11. the water tap according to claim 9 is characterized by, described water tap comprises that further one is energized so that control the electromagnetic steering valve of described the 3rd liquid supply tube when described handle is in described second operating range.

12. the water tap according to claim 9 is characterized by, described water tap further comprises a pump, and when described handle was in described second operating range, described pump was energized, so that pumping is from the 3rd liquid of described the 3rd liquid supply tube.

13. a water tap that is used in particular for kitchen sink, it comprises:

A mouth pipe, it is used for from described leading discharge water;

Manual valve means, it is used for controlling selectively water and discharges by described mouth pipe from described mixing chamber and the 3rd mouthful;

An electric switch, it is driven by described control valve unit when selecting to eject from described the 3rd mouthful water;

And an electric loop, it responds described selection by described electric switch and drives.

14. the water tap according to claim 13 is characterized by, described electric loop comprises an optical indicator, thereby it has been operated to produce in described manual valve means and is energized so that indicate when described the 3rd liquid is discharged.

15. the water tap according to claim 13 is characterized by, described electric loop comprises an electromagnetic steering valve, thereby it has been operated to produce in described manual valve means and is energized when described the 3rd liquid is discharged, so that control described the 3rd liquid supply tube.

16. water tap according to claim 15, it is characterized by, described electric loop comprises a pump, thereby is energized when described the 3rd liquid is discharged when described manual valve means has been operated to produce, so as from described the 3rd liquid of described the 3rd liquid supply tube pumping to described the 3rd fluid port.

17. the water tap according to claim 13 is characterized by, described mouth pipe carries one and is connected to first discharge nozzle of described mixing chamber by described control valve unit, and the described control valve unit of process is connected to second described the 3rd mouthful discharge nozzle.

18. the water tap according to claim 17 is characterized by, described first nozzle is carried by a shower nozzle, and described shower nozzle can take off from the end of described mouth pipe and be connected to described mixing chamber by an extensible flexible pipe that extends through described mouth pipe.

19. the water tap according to claim 17 is characterized by, described tap further comprises a four-hole, and it is used for being connected to the 4th supply tube that selectively is connected to described mouth pipe by described control valve unit.

20. the water tap according to claim 19 is characterized by, described control valve unit comprises and is respectively applied for described first, second, third and the first, second, third and the 4th hand control valve of four-hole.