AU2021201229B2

AU2021201229B2 - Water discharge device

Info

Publication number: AU2021201229B2
Application number: AU2021201229A
Authority: AU
Inventors: Ching Yu Kuo
Original assignee: Year Tsai Enterprise Co Ltd
Current assignee: Year Tsai Enterprise Co Ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2023-02-09
Anticipated expiration: 2041-02-25
Also published as: AU2021201229A1

Abstract

A water discharge device which prevents burns and saves water is revealed. The water discharge device includes a water valve seat, a 5 ceramic valve core fixed to the water valve seat, a tubular cover enclosing the ceramic valve core therein and provided with a through slot formed on a peripheral wall in the circumferential direction, and a control handle provided with a handle portion and a connection portion. The connection portion is for connection to a valve shaft of the ceramic valve core. One 10 end of the handle portion is connected to the connection portion and the other end is protruding from the through slot to form a protruding portion which is able to be operated and moved in the through slot for moving the ceramic valve core. A circular cap replaces the tubular cover and the connection portion is partially exposed. 1/29 10 12 101 302 2 40 FIG.1I

Description

1/29

10 12

101

302

2 40

FIG.1I

WATER DISCHARGE DEVICE BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a water discharge device, especially

to a water discharge device controlling the release of cold water, hot

water, or cold/hot water mixture.

Description of Related Art

A common single handle wall-mounted faucet in which discharge of

hot water, cold water, or hot/cold mixture is controlled by the handle is

commonly used in bathrooms. A water valve seat of the wall-mounted

faucet is usually provided with a mixing valve core covered with a cover.

A control handle is arranged at top side or outer side of the cover and

connected to the mixing valve core in the cover for driving the mixing

valve core to turn on/off the water or adjust a ratio of hot water to cold

water. The hot/cold mixed water in the wall-mounted faucet is then

delivered to a discharge part such as shower and then sprayed out for user

to take a bath.

In some bathrooms, there are two wall-mounted faucets, one

connected to a cold water supply pipe and the other connected to a hot

water supply pipe. Such kind of wall-mounted faucets can only be used to

turn on/off the water and adjust the amount of the water flow. Then hot

water and cold water are mixed in pipelines between the two faucets and

delivered to a discharge part such as a water spout. The wall-mounted

faucet able to adjust the amount of the flow mentioned above is provided

with a control handle also arranged at the top side or the outer side of the

cover.

Moreover, water discharge devices similar to the above wall-mounted

faucets are also installed at bath basins or kitchen countertops in the form

of a faucet body and a spout. The mixed water is introduce to an outlet of

the spout to flow out, without in combination with other discharge parts.

The faucet mounted to the basin or the countertop is also equipped with a

control handle on the top or the outer side of a cover.

According to common water discharge devices mentioned above, it is

clearly learned that a control handle disposed on the top or the outer side of the cover is easy to rotate or operated by users. Such design and structure have been used for many years. However, they have certain shortcomings in use and appearance.

For example, the positions of the control handle remain the same and

the control handle is exposed completely. This affects the overall visual

effects. Both the volume and the ratio of the control handle to the whole

faucet are difficult to be reduced for simple and compact design.

The major considerations for the arrangement of the control handle

include convenience in assembly and ease of visual contact. Yet the

disadvantage is that the control handle is easy to have accidental contact,

especially for the elderly or children while wandering or playing near the

faucet. Thereby reduction of the volume and exposed area of the control

handle or hiding of the control handle may help reduce the possibility of

accidental touch.

Furthermore, the control handle at the top side or the outer side of the

device is easy to have dirt and stains caused by dust or spills of all

substances. In order to keep it clean, users need to wash the control handle frequently. The control handle itself rotates together with different types of the styles makes the cleaning become much more difficult.

During the cleaning process, the control handle is easy to rotate and thus

turn on the water inadvertently. The cleaner needs to rotate the handle and

turns off the water while he/she is cleaning. This is disturbing for

cleaning staff or equipment management personnel and the cleaning

effect is reduced.

In addition, users often turn the control handle to a full hot or full

open position. Under certain conditions or for particular occasions, some

users don't want to turn on the water to the full hot or full open position.

Yet they can't control the position of the control handle to be exactly

turned to the position close to the full hot or full open position. Owing to

careless operation, the high temperature water from the device turned to

the full hot position may lead to serious burns, especially to children, the

elderly or patients and further cause a hazardous situation for the user.

The maximum water flow at the full open position is quite a waste of

water, especially in public places, no matter users waste water willfully or

negligently.

The above water discharge device often includes a ceramic valve

core in which a fixed ceramic piece and a movable ceramic piece are

mounted. Along with the control handle being operated, the two ceramic

pieces are rotated with respect to each other to change water flow

communicating therebetween for turning on/off the water and adjustment

of the mixed water flow. The most common issue is that the positioning

structure between the ceramic pieces of the ceramic valve core is

damaged or cracked by collision due to excessive force users applied to

the control handle. Thus the service life of the ceramic valve core is

reduced.

SUMMARY OF THE INVENTION

Therefore it is a primary object of the present invention to provide a

water discharge device in which a part of a control handle is hidden in a

tubular cover and only a protruding portion of a handle portion is

exposed. Thereby the appearance of the device is more simple and stylish.

As to the protruding portion, it is on the peripheral wall of the tubular

cover and having compact volume as well as small contact area. Thus the

possibility of accidental contact is minimized. For example, children may accidentally touch the water discharge device while they are playing near the device. While the tubular cover being replaced by the circular cap, the control handle is only partially exposed through an input opening of the circular cap. The possibility of accidental contact is also significantly reduced.

Moreover, the tubular cover is a fixed part with a closed end, which

is located on top side or outer side of the water discharge device.

Compared with the conventional handle, the tubular cover is easier for

users to wipe and wash. The clean surface of the tubular cover is also

easy to maintain no matter for cleaning staff or equipment management

personnel.

Furthermore, the present water discharge device uses the arc length

or the position of the through slot to limit the rotation range of the control

handle. For instance, the control handle is limited and only able to move

to the position close to the full hot position instead of the full hot

position. Thereby the temperature of the water discharged is reduced and

burns caused by discharge of the hot water can be avoided, especially for

the elderly and children. The through slot can also be used to limit the control handle so that the control handle can only be moved to the position close to the full open position. Thereby the maximum amount of water flow discharged is reduced and users are forced to save more water.

In order to achieve the above object, a water discharge device

according to the present invention mainly includes a water valve seat, a

ceramic valve core mounted and fixed to the water valve seat, a tubular

cover in which the ceramic valve core is enclosed and hidden, and a

control handle. A through slot is mounted on a peripheral wall of the

tubular cover in the circumferential direction. The control handle includes

a handle portion and a connection portion for connection to a valve shaft

of the ceramic valve core. One end of the handle portion is connected to

the connection portion and the other end thereof is protruding from the

through slot of the tubular cover to form a protruding portion. Thereby

users operate the protruding portion to swing and move in the through

slot for controlling the ceramic valve core. The tubular cover can be

replaced by a circular cap and the connection portion is partially exposed

through an input opening on top of the circular cap.

BRIEF DESCRIPTION OF THE DRAWINGS

The structure and the technical means adopted by the present

invention to achieve the above and other objects can be best understood

by referring to the following detailed description of the preferred

embodiments and the accompanying drawings, wherein:

Fig. 1 is a perspective view of an embodiment according to the present

invention;

Fig. 2 is a side view of the embodiment in Fig. 1 according to the present

invention;

Fig. 3 is a side sectional view along line 1-1 of the embodiment in Fig. 1

with a wall according to the present invention;

Fig. 4 is a side sectional view along line 2-2 in Fig. 1 with a wall

according to the present invention;

Fig. 5 is a side sectional view along line 3-3 in Fig. 2 according to the

present invention;

Fig. 6 is an explosive view of the embodiment in Fig. 1 according to the

present invention;

Fig. 7 is a bottom view of the embodiment in Fig. Viewing from the

bottom side of the embodiment to one end of a handle according to the

present invention;

Fig. 8 is a front view of the embodiment in Fig. 1 viewing from the front

side of the embodiment to a seal top of a tubular cover according to the

present invention;

Fig. 9 is a front view of the embodiment in Fig. 1 viewing from the front

side of the embodiment to a seal top of a tubular cover and showing a

through slot with reduced arc length for allowing a second operating

angle A2 smaller than a first operating angle A1 according to the present

invention;

Fig. 10 is a front view of the embodiment in Fig. 1 viewing from the front

side of the embodiment to a seal top of a tubular cover and showing the

position of a through slot already being adjusted and rotated for allowing

a second operating angle A2 smaller than a first operating angle Al

according to the present invention;

Fig. 11 is a perspective view of another embodiment according to the

present invention;

Fig. 12 is a side sectional view of the embodiment in Fig. 11 according to

the present invention;

Fig. 13 is an explosive view of the embodiment in Fig. 11 according to

the present invention;

Fig. 14 is a top view of a faucet body viewed from the top of a valve-mounting slot of the embodiment in Fig. 11 according to the present invention;

Fig. 15 is a cross sectional view of a faucet body along a water passage of

the embodiment in Fig 11 according to the present invention;

Fig. 16 is a perspective view of a further embodiment (the third

embodiment) showing two water discharge devices used in combination

with each other, a pipeline connected the two water discharge devices,

and a discharge head according to the present invention;

Fig. 17 is a top view of a cross section of the embodiment in Fig. 16

showing two water discharge devices used in combination with each

other, a pipeline connected the two water discharge devices, a discharge

head and a wall according to the present invention;

Fig. 18 is a partial enlarged view of a cross section of one of the two

water discharge devices of the embodiment in Fig. 16 showing a wall and

a connecting pipeline according to the present invention;

Fig. 19 is a partial front view of one of the two water discharge devices in

the embodiment shown in Fig. 16 showing a first operating angle and a

second operating angle according to the present invention;

Fig. 20 is an explosive view of one of the two water discharge devices of

the embodiment in Fig. 16 according to the present invention;

Fig. 21 is a perspective view of a further embodiment (the fourth

embodiment) according to the present invention;

Fig. 22 is a side sectional view along line 4-4 of the embodiment in Fig.

21 with a countertop according to the present invention;

Fig. 23 is an explosive view of the embodiment in Fig. 21 according to

the present invention;

Fig. 24 is a is a side sectional view of a further embodiment (the fifth

embodiment) showing a two-piece tubular cover and a one-part control

handle according to the present invention;

Fig. 25 is a perspective view of a further embodiment (the sixth

embodiment) according to the present invention;

Fig. 26 is a side sectional view along line 5-5 of the embodiment in Fig.

25 with a wall according to the present invention;

Fig. 27 is an explosive view of the embodiment in Fig. 25 according to

the present invention;

Fig. 28 is a perspective view of a further embodiment (the seventh

embodiment) according to the present invention;

Fig. 29 is a side sectional view along line 6-6 of the embodiment in Fig.

28 with a countertop according to the present invention;

Fig. 30 is an explosive view of the embodiment in Fig. 28 according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Refer to Fig. 1, Fig. 2 and Fig. 6, an embodiment of a water discharge

device is revealed. A water discharge device 1 in this embodiment is a

common single handle wall-mounted mixer faucet which works well in a

bathroom. Refer to Fig. 1, Fig. 2, and Fig. 6, the water discharge device 1

mainly includes a water valve seat 10, a ceramic valve core 20, a tubular

cover 30, and a control handle 40.

Refer to Fig. 3-6, the water valve seat 10 consists of at least one inlet

passage 11 and an outlet passage 12. In this embodiment, the water valve

seat 10 is composed of a cold water inlet passage 111 allowing cold water

to flow in, a hot water inlet passage 112 allowing hot water to flow in,

and a mixture outlet passage 12 allowing mixed water to flow out. The

mixed water is a mixture of cold water and hot water mixed in a proper

ratio and it can be warm water, hot water, or cold water. Users operate the

ceramic valve core 20 to control the mixed water which is flowing out of

the outlet passage 12 and delivered to a discharge part such as a shower assembly to come out of a shower head.

Refer to Fig. 3, Fig. 4 and Fig. 6, the ceramic valve core 20 is

connected and fixed to the water valve seat 10 and composed of a rotary

valve shaft 21, a cold water inlet 22, a hot water inlet 23, and a mixture

outlet 24. The water from the inlet passage 11 is flowing to the outlet

passage 12 under control of the rotary valve shaft 21 being rotated. The

cold water inlet 22, the hot water inlet 23, and the mixture outlet 24 are

arranged at the bottom of the ceramic valve core 20 and communicating

with the cold water inlet passage 111, the hot water inlet passage 112 and

the mixture outlet passage 12 respectively, as shown in Fig. 6. In this

embodiment, the ceramic valve core 20 is the valve core with two inlets

and one outlet for mixing hot and cold water.

Refer to Fig. 3, Fig. 4, and Fig. 6, the tubular cover 30 consists of a

seal top 31, a peripheral wall 32 extending from the seal top 31, and an

enclosed space 33 defined between the seal top 31 and the peripheral wall

32. The ceramic valve core 20 is enclosed and hidden in the enclosed

space 33 of the tubular cover 30 while a through slot 321 is formed on the

peripheral wall 32 in the circumferential direction and communicating with the enclosed space 33. In this embodiment, the tubular cover 30 looks like a cylinder and the through slot 321 is a long curved opening. It is easily understood that the shape of the through slot 321 changes along with the cover 30 in other shapes. For example, the through slot 321 can be a narrow linear opening when the tubular cover 30 is in another shape such as a rectangular tube.

As shown in Fig. 3 and Fig. 6, the control handle 40 includes a

connection portion 41 and a handle portion 42. The connection portion 41

is mounted in the enclosed space 33 for connection to the valve shaft 21

of the ceramic valve core 20 while one end of the handle portion 42 is

connected to the connection portion 41 and the other end thereof is

protruding from the through slot 321 of the tubular cover 30 to form a

protruding portion 421 which is operated by users to swing and move in

the through slot 321 for moving and controlling the ceramic valve core

20. In this embodiment, the valve shaft 21 is moved with the control

handle 40 being operated not only for turning on/off cold and hot water

from the cold water inlet 22 and the hot water inlet 23 to the mixture

outlet 24 but also for adjustment of a ratio of hot to cold water.

To be more precisely, refer to Fig. 7 and Fig. 8, the through slot 321

is provided with a start side 322 and an end side 323. When the

protruding portion 421 of the control handle 40 is located at the start side

322, the ceramic valve core 20 is at a closed position P1 with no water.

Along with the movement of the protruding portion 421 toward the end

side 323, the ceramic valve core 20 is shifted to a full-cold position P2, a

mixed position P3 and a full-hot position P4/or a position close to the

full-hot position P4 in turn.

To put it differently, the control handle 40 in this embodiment is

located at the closed position P1 normally so that the ceramic valve core

20 is controlled and positioned at the closed state. When users push and

move the protruding portion 421 toward the end side 323 of the through

slot 321, the ceramic valve core 20 first allows cold water to pass

therethrough and the amount of the cold water is gradually increased to

the maximum at the full-cold position P2. Then the cold water flow is

mixed with hot water and the ratio of the hot water to the cold water flow

is gradually increased to a proper ratio at the mixed position P3. Next the

ratio of the hot watertothecoldwater flow is increased continuously

until the protruding portion 421 reaches the full-hot position P4 and the water flow is complete hot. The structure and function of the ceramic valve core 20 at the respective positions are already known and there is no more related description.

It should be noted that the protruding portion 421 is mounted in the

through slot 321so that the through slot 321 can be used to limit the

position of the protruding portion 421 being moved. The ceramic valve

core 20 is unable to move completely to the full-hot position P4, only

able to be close to the full-hot position P4. According to different

requirements for water use such as the safety of users, installers can

preset the ceramic valve core 20 only able to be close to the full-hot

position P4 for protecting specific users such as the elderly and children

from being burned caused by hot water due to careless operation.

In a similar way, the ceramic valve core 20 can also be set at the

mixed position P3 or even the full-cold position P2. This is feasible but

not practical, only suitable for some extreme conditions.

Moreover, it is easily understood that the ceramic valve core 20 is

never able to swing to the full-hot position P4 once the through slot 321 is used to stop and limit the protruding portion 421. Thereby ceramic pieces inside the ceramic valve core 20 will not get damaged easily owing to improper operation such as excessive force applied during the movement of the ceramic valve core 20 to the full-hot position P4 and the service life of the ceramic valve core 20 can be extended effectively.

To be more precisely, the valve shaft 21 of the ceramic valve core 20

can be rotated within a first operating angle Al and the through slot 321

allows the protruding portion 421 to swing in a second operating angle

A2 which is smaller than the first operating angle Al. Thereby the

ceramic valve core 20 is limited and only able to move to the position

close to the full-hot position P4.

A preferred embodiment with the above design is revealed in Fig. 9.

As shown in figure, the range of the second operating angle A2 is

determined by the length of the through slot 321 in the circumferential

direction (arc length). Namely, the second operating angle A2 is getting

smaller along with the reduction of the arc length of the through slot 321.

The swing of the protruding portion 421 is limited when the second

operating angle A2 is smaller than the first operating angle Al. The important point is that the through slot 321 mainly limits the full-hot position P4 of the ceramic valve core 20, not the closed position Pl.

Thereby the closed position P1 is not affected and is determined by the

installation position of the tubular cover 30 in the circumferential

direction.

Refer to Fig. 10, another preferred embodiment is disclosed. The

range of the second operating angle A2 is determined by the position of

the through slot 321 in the circumferential direction. In other words, the

closed position P1 at the start side 322 and the full-hot position P4 at the

end side 323 are ensured once the ceramic valve core 20 has been

mounted and fixed. The position of the through slot 321 in the

circumferential direction is changed along with the adjustment of the

position of the tubular cover 30 relative to the ceramic valve core 20 in

the circumferential direction to determine the range of the second

operating angle A2 and make the second operating angle A2 become

smaller than the first operating angle Al. Yet such adjustment may cause

the start side 322 of the through slot 321 is a bit away from the closed

position P1 and this has no influence on the function of the whole device.

Refer to Fig. 3, Fig. 4, and Fig. 6, the embodiment of the water

discharge device 1 is applied to a wall mounted faucet and further

composed of a valve cap 50, an adjusting ring 60 and a fastener 70. The

valve cap 50 is threaded and fixed to the water valve seat 10 for pressing

and positioning the ceramic valve core 20 on the water valve seat 10. The

adjusting ring 60 is threaded on the outer surface of the valve cap 50 and

able to be adjusted and moved to attach to an outer surface WI of a wall

W in which the water valve seat 10 is hidden. A circular groove 61 is

formed on an outer surface of a peripheral wall of the adjusting ring 60. A

threaded through hole 324 is disposed on a peripheral wall of the tubular

cover 30, located close to an opening 300 on the bottom of the tubular

cover 30 and corresponding to the circular groove 61. The fastener 70 is

threaded into the threaded through hole 324 and further abutting against

the circular groove 61 correspondingly. Thereby the tubular cover 30 is

not only limited axially and thus unable to be released from the adjusting

ring 60, but also fixed in the circumferential direction to keep the through

slot 321 at the required position easily. The shape of the adjusting ring 60

as an adjusting member and the corresponding circular groove 61 is not

limited, as long as they match each other.

It should be noted that the water valve seat 10 is generally mounted

on the inner side of the wall W. An assembly hole H is formed on the

wall W so that the valve cap 50 can be inserted through the assembly hole

H and then the adjusting ring 60 is threaded on the valve cap 50 and

attached to the outer surface W Iof a wall W. Or the wall W is clamped

between the adjusting ring 60 and the water valve seat 10. Thereby the

assembly and fastening of the adjusting ring 60 are completed. It is easy

to understand that the position of the adjusting ring 60 along the axial

direction of the valve cap 50 is determined by the thickness of the wall

W. Similarly, since the tubular cover 30 is connected and fixed to the

adjusting ring 60, its axial position also changes along with the

adjustment and movement of the adjusting ring 60. In the same way, the

axial position of the control handle 40 mounted to the valve shaft 21 is

also adjusted and moved so that the handle portion 42 can be protruding

from the through slot 321 smoothly.

In this embodiment, the tubular cover 30 is one part, as shown in Fig.

6. The control handle 40 includes a connecting sleeve 40a and an

operating handle 40b which form the connection portion 41 and the handle portion 42 respectively. A connecting hole 411 is disposed on the center of the connecting sleeve 40a and the valve shaft 21 of the ceramic valve core 20 is inserted and threaded in the connecting hole 411. At least one joining hole 412 is arranged at the peripheral wall of the connecting sleeve 40a. An inner end of the operating handle 40b is inserted through the through slot 321 and connected to the joining hole 412.

The valve shaft 21 of the ceramic valve core 20 is a rectangular prism

provided with four outer wall surfaces 211. The connecting hole 411 of

the connecting sleeve 40a is a rectangular hole with four inner wall

surfaces and closely matched the valve shaft 21. Refer to Fig. 3 and Fig.6,

The peripheral wall of the connecting sleeve 40a is provided with an

outer threaded hole and an inner threaded hole 413 coaxial to each other.

The outer threaded hole forms the joining hole 412 while a diameter of

the inner threaded hole 413 is smaller than that of the outer threaded hole.

The inner threaded hole 413 is threaded with a fastener 43 such as a stud

bolt which is tightly abutting against one of the outer wall surfaces 211 of

the valve shaft 21. An inner end of the operating handle 40b is provided

with a threaded portion 422 which can be threaded and connected to the

outer threaded hole.

Refer to Fig. 11-13, another embodiment (the second embodiment) of

the present invention is disclosed. A water discharge device la in this

embodiment is a common single handle mixer faucet which is installed

on a bath basin or kitchen countertop. Compared with the above

embodiment directly mounted to the wall W, this embodiment is usually

arranged at the basin or countertop. The embodiments have different

installation sites or positions. The style and structure of a water valve seat

10a in this embodiment are a bit different from those of the water valve

seat 10 of the above embodiment. The assembly structure of the tubular

cover 30 with the water valve seat 10/10a also has certain difference.

Moreover, the water discharge device la in this embodiment also

includes the valve cap 50 and the fastener 70 but doesn't have the

adjusting ring 60. The main reason is that there is no wall W required for

assembly in this embodiment so that the adjusting ring 60 can be omitted.

A circular groove 51 is mounted on an outer surface of the peripheral wall

of the valve cap 50 in order to replace of the circular groove 61 of the

adjusting ring 6. Similarly, the fastener 70 is threaded into the threaded

through hole 324 of the tubular cover 30 and further abutting against the position of the circular groove 51 correspondingly. Thereby the tubular cover 30 is not only limited axially and thus unable to be released from the valve cap 50, but also fixed in the circumferential direction to keep the through slot 321 at the required position.

Compared with the above embodiment in which the water valve seat

10 is hidden in the wall W, the water valve seat 10a of this embodiment

looks like a common faucet with a water outlet, not only a water passage

part. The water valve seat 10a of this embodiment further includes a

faucet body 101 and a spout 102. The faucet body 101 is a cylinder and

an installation wall 13 is connected to an inner surface of the peripheral

wall of the faucet body 101. A valve-mounting slot 14 for mounting the

ceramic valve core 20 is defined to be above the installation wall 13 while

a channel 15 is defined to be under the installation wall 13. The

installation wall 13 is provided with a cold water inlet passage 111 and a

hot water inlet passage 112, both communicating with the

valve-mounting slot 14 and the channel 15, as shown in Fig. 14 and Fig.

15. A water passage 12a is mounted between the valve-mounting slot 14

and the peripheral wall of the faucet body 101 to form a part of the

mixture outlet passage 12. The water passage 12a is further provided with a communicating opening 121 formed on the peripheral wall of the faucet body 101. As to the spout 102, it is connected to the peripheral wall of the faucet body 101 and provided with an outlet passage 12b which includes an inner side communicating with the communicating opening 121 to form the rest part of the mixture outlet passage 12 and an outer side provided with a water outlet 122 for allowing mixed water to come out.

As shown in Fig. 16, Fig. 17 and Fig.18, a further (the third)

embodiment is revealed. The same as the water discharge device 1 of the

first embodiment, a water discharge device lb of this embodiment is also

applied to a wall-mounted faucet in a bathroom. The difference of this

embodiment and the first embodiment is in that the water discharge

device 1 of the first embodiment which is controlled by a single handle

allows cold and hot water to flow and mix therein but the water discharge

device lb of this embodiment only allows either cold water or hot water

to flow in so that only the on/off function and flow adjustment function

are provided, without water mixing function. Thus two water discharge

devices lb are required in this embodiment. One water discharge device

lb is used to allow cold water to flow in and adjust the amount of the cold

water flow while the other is used for allowing hot water to flow in and adjustment the quantity of the hot water flow. Then the cold water and the hot water passed through the two water discharge devices lb are mixed within a pipeline 2 between the two water discharge devices lb.

Since the water discharge device lb is only used for turning on/off

and adjustment of the cold water flow or the hot water flow, the water

valve seat 10b in this embodiment only includes an inlet passage 11 and

an outlet passage 12. If the water valve seat lOb is connected to a cold

water supply, the inlet passage 11 is a cold water inlet passage 11 and the

outlet passage 12 allows the cold water to pass through. Similarly, once

the water valve seat 1b is connected to a hot water supply, the inlet

passage 11 is a hot water inlet passage 11 and the outlet passage 12

allows the hot water to pass through.

In this embodiment, a water inlet 25 is disposed on a bottom of the

ceramic valve core 20a for communicating with the cold water or hot

water inlet passage 11 while a water outlet 26 is mounted to a peripheral

wall of the ceramic valve core 20a for communicating with the outlet

passage 12. Thereby the control handle 40 is operated to move the valve

shaft 21 not only for turning on/off the cold or hot water from the water inlet 25 to the water outlet 26 but also for adjusting the amount of water flow. In other words, users can turn on/off a cold water flow and a hot water flow and control the temperature of the mixed water by adjustment of the quantity of the cold/hot water flow by the two water discharge devices. Then the mixed water is flowing out through a discharge head 3.

As shown in Fig. 19, the ceramic valve core 20a is at the closed

position P1 with no water flow when the protruding portion 421 of the

control handle 40 of this embodiment is located at the start side 322.

Along with the movement of the protruding portion 421 toward the end

side 323, the amount of water flow coming from the water outlet 26 of

the ceramic valve core 20a is increased gradually until the ceramic valve

core 20a is located at a full open position P5 or a position close to the full

open position P5. Thereby the ceramic valve core 20a of this embodiment

doesn't have the mixed position P3 as the first embodiment and the full

open position P5 can be full cold or full hot, depending on the water

source which the water discharge device lb is connected to is cold water

or hot water.

Similarly, the valve shaft 21 of the ceramic valve core 20a can be rotated within a first operating angle Al. The through slot 321 allows the protruding portion 421 to swing in a second operating angle A2 which is smaller than the first operating angle Al. Thereby the ceramic valve core

20a is limited and only able to move to the position close to the full open

position P5.

In this embodiment, the ceramic valve core 20a is unable to move to

the full open position P5, and is limited to move to the position close to

the full open position P5. The advantage of the above design is in that

installers can reduce the maximum quantity of the water discharged

within the acceptable range according to the amount of water required to

force users to embrace water conservation. The design also reduces water

wastage caused by improper use of water. Significant savings in water

use are observed when the water discharge device lb is arranged at public

area.

The same as the above two embodiments, the range of the second

operating angle A2 is determined not only by the length of the through

slot 321 in the circumferential direction but also by the position of the

through slot 321 in the circumferential direction.

As shown in Fig. 18, it should be noted that the water discharge

device lb of this embodiment includes a valve cap 50, an adjusting ring

60 and a fastener 70, the same as the first embodiment. Yet the water

valve seat 10b of this embodiment further includes a valve-mounting slot

16 in which the ceramic valve core 20a is directly threaded and fastened

while the ceramic valve core 20 of the first embodiment is fixed by the

valve cap 50 being threaded to the to the water valve seat 10.

Moreover, the valve cap 50 of this embodiment is threaded and fixed

to the peripheral wall of the ceramic valve core 20a while the valve cap

50 of first embodiment is threaded and fixed to the water valve seat 10.

Except the differences mentioned above, the rest part of this embodiment

has the structure and the functions about the same as those of the first

embodiment.

Furthermore, the ceramic valve core 20a of this embodiment is also

different from that of the above two embodiments. In particular, the valve

shaft 21 of this embodiment is a cylinder and an outer surface of the

peripheral wall of the valve shaft 21 is provided with a plurality of first teeth 212 which run as a straight line in the axial direction while the connecting hole 411 of the connecting sleeve 40a is circular and a plurality of linear second teeth 414 are disposed axially around an inner surface of the connecting hole 411 for being engaged with the first teeth

212. Thereby the control handle 40 is mounted and fixed to the valve

shaft 21 of the ceramic valve core 20a by the fastener 43 being threaded

into the inner threaded hole 413 of the connecting sleeve 40a and firmly

abutting against the corresponding first teeth 212 of the valve shaft 21.

Refer to Fig. 21, Fig. 22, and Fig. 23, a further (the fourth)

embodiment of the present invention is revealed. The same as the water

discharge device la of the second embodiment, a water discharge device

1cof this embodiment is usually a single handle faucet mounted to a bath

basin or kitchen countertop W2. The difference between the two

embodiments is in that this embodiment only provides either full hot or

full cold water flow, especially the full cold water flow. Thus the water

valve seat 1Oc of this embodiment only includes an inlet passage 11 and

an outlet passage 12, similar to the water valve seat l0b of the water

discharge device lb of the third embodiment.

Similarly, the bottom of the ceramic valve core 20a is provided with

a water inlet 25 which is communicating with the cold water or hot water

inlet passage 11 while a water outlet 26 is mounted to a peripheral wall of

the ceramic valve core 20a for communicating with the outlet passage 12.

Thereby the water discharge device l cof this embodiment has neither the

water mixing function of the water discharge device 1 in the first

embodiment nor the mixing function of cold and hot water provided by

the two water discharge devices 1 in the third embodiment, and is only

used to provide either cold water or hot water. For example, this

embodiment can be installed at the public toilet for providing cold water

to users and allowing users to wash hands after using the public toilet.

It should be pointed out that the water valve seat 1Oc of the present

water discharge device l cis similar to the water valve seat 1Ga in the

second embodiment, also having a faucet body 101 and a spout 102. Yet

the faucet body 101 of the second embodiment is a one part while the

faucet body 101 of this embodiment is a two-piece part composed of an

outer sleeve 101a forming a main part of the faucet body 101 and a

threaded tube 101b. The spout 102 is connected and fixed to the outer

sleeve 101a. The threaded tube 101b is threaded into the bottom of the outer sleeve 101a and working together with the outer sleeve 10la to define the valve-mounting slot 14 for mounting and positioning the ceramic valve core 20a. A water inlet pipeline is inserted through the bottom of the threaded tube 101b and connected to the water inlet 25 on the bottom of the ceramic valve core 20a.

Compared with the second embodiment, the ceramic valve core 20a

of this embodiment can be directly threaded and fixed into the an outer

sleeve 101a as well as abutting against and positioned on the top of the

threaded tube 101b, instead of being pressed and positioned by the valve

cap 50. The valve cap 50 of this embodiment is only threaded onto the

ceramic valve core 20a and provided with a circular groove 51 which the

fastener 70 is abutting against after being threaded into the threaded

through hole 324 of the tubular cover 30.

As shown in Fig. 24, a further embodiment (the fifth embodiment) is

revealed. Compared with the above embodiments, a tubular cover 30a of

a water discharge device ld of this embodiment is a designed to have two

parts, a tubular body 301 and a top cover 302 connected to the top of the

tubular body 301. The through slot 321 is defined to be between the tubular body 301 and the top cover 302. Thereby the control handle 401 is designed to be one part. While the tubular body 301 is not closed by the top cover 302, the control handle 401 is set vertically and connected to the valve shaft 21 of the ceramic valve core 20 by the connecting hole

411 arranged at the center of the connection portion 41 when the tubular

body 301 has not been assembled with the top cover 302. Then the top

cover 302 is connected and fixed to the tubular body 301 by snap

connection or other ways.

As shown in Fig. 25, Fig. 26 and Fig. 27, a further embodiment (the

sixth embodiment) is revealed. Compared with the above embodiments,

the water discharge device le which includes a circular cap 80 to replace

the tubular cover 30, 30a is applied to a wall-mounted faucet which

provides either cold water or hot water (the same as the third

embodiment). The rest components such as the water valve seat 10b, the

valve cap 50, the adjusting ring 60, the fastener 70 etc. and the structure

of this embodiment are similar to the third embodiment. The shape of the

circular cap 80 as a cap is not limited.

It should be noted that the circular cap 80 includes a cavity 81, an input opening 82 disposed over the cavity 81, and a through slot 83 formed on the peripheral wall of the circular cap 80 in the circumferential direction and communicating with the cavity 81. The ceramic valve core

20a is passed through the input opening 82 to be mounted and hidden in

the cavity 81

Moreover, the connection portion 41 of the control handle 402 is

further provided with a top wall 415 for sealing the input opening 82 of

the circular cap 80. Thus the ceramic valve core 20a is enclosed and

hidden in a space between the circular cap 80 and the top wall 415.

Preferably, the top wall 415 of the connection portion 41 further

includes a top surface 416 which is designed to be at about the same level

as a top edge 84 of the circular cap 80, for not only aesthetic purpose but

also reducing the possibility of accidental touch while the top wall 415

being rotated.

The top edge 84 of the circular cap 80 is provided with a mark such

as a quantity mark 85 at the position over the through slot 83 and

corresponding to the protruding portion 421 of the handle portion 42 for showing the amount of water flow controlled by the current position of the control handle 402. In this embodiment, the quantity mark 85 includes three symbols, S, M, and F which are abbreviations of small, middle and full for representing small quantity, middle quantity, and full quantity of the flow respectively. The types and the number of the symbols are not limited.

The top surface 416 is further provided with an index 417

corresponding to the protruding portion 421 of the handle portion 42 and

pointing toward the quantity mark 85 for showing the quantity of the flow

controlled by the current position of the control handle 402. In this

embodiment, the index 417 is an arrow but not limited. It can also be

other index with the same or similar meanings. The index 417 can even

be arranged at the protruding portion 421 directly so that users can learn

the quantity of the flow controlled by the current position of the control

handle 402 according to the quantity mark 85 the index 417 indicates.

Thus the user can check the quantity of the water flow more intuitively

and the design provides more flexible and accurate control of the water

discharged.

A surrounding wall 418 is integrally extending from the bottom

surface of the top surface 416 of the connection portion 41 and able to be

mounted in the cavity 81 of the circular cap 80. The connecting hole 411

which allows the valve shaft 21 of the ceramic valve core 20a to insert

through is disposed on the bottom of the surrounding wall 418 while the

joining hole 412 and the inner threaded hole 413 are also arranged at the

surrounding wall 418.

Refer to Fig. 28, Fig. 29 and Fig. 30, a further embodiment (the

seventh embodiment) is disclosed. A water discharge device If of this

embodiment is about the same as the above embodiment and the

difference between the two embodiments is in that the water discharge

device If of this embodiment is in the form of a single handle hot and

cold water mixer which is similar to the water discharge device 1 of the

first embodiment and is installed at the countertop W2 or the like in the

fourth embodiment, instead of being mounted to the wall W. The water

valve seat 10d of this embodiment is designed into a threaded pipe which

is provided with the valve-mounting slot 14 for mounting and positioning

the ceramic valve core 20. By the valve cap 50 and the water valve seat

10d threaded with each other, the ceramic valve core 20 is axially pressed and limited in the valve-mounting slot 14. A fixing ring 90 similar to the adjusting ring 60 of the above embodiments is disposed over the valve cap 50. The shape of the fixing ring 90 as a fixing member is not limited.

The countertop W2 of this embodiment is usually has specific

dimensions. A threaded hole 91 is arranged at the fixing ring 90 while a

corresponding circular groove 52 is disposed on the valve cap 50. Thus a

fastener 901 is threaded into the threaded hole 91 and then abutting

against the circular groove 52 tightly. While connecting and fixing the

fixing ring 90 to the valve cap 50, the fixing ring 90 is just attached to a

top surface W3 of the countertop W2. Thus the fixing ring 90 is unable to

be adjusted and moved on the valve cap 50 and there is no need to adjust

and move the fixing ring 90 because that the thickness of the countertop

W2 is fixed.

The water valve seat 10d which is a threaded pipe can be pressed

against a bottom surface W4 of the countertop W2 by being threaded with

a threaded member 902. Together with the fixing ring 90 attached to the

top surface W3 of the countertop W2, the water discharge device If is

mounted and fixed to the countertop W2.

A threaded hole 86 is arranged at and penetrating the peripheral wall

of the circular cap 80 while the fixing ring 90 is provided with a circular

groove 92. Similarly, the circular cap 80 is mounted and fixed to the

fixing ring 90 by the fastener 70 threaded into the threaded hole 86 and

then abutting against the circular groove 92.

The water valve seat 10d which is a threaded pipe of this

embodiment can be directly connected to a cold water pipeline, a hot

water pipeline, or a mixed water pipeline in a way which is different from

that of the first embodiment.

Since the water discharge device If of this embodiment provides the

mixing function of cold and hot water, a temperature mark 87 is arranged

at the top edge 84 of the circular cap 80 and disposed over the through

slot 83, instead of the quantity mark 85 on the water discharge device le

of the sixth embodiment. The temperature mark 87 is located at the

position over the through slot 83 and corresponding to the protruding

portion 421 of the handle portion 42 for showing temperature of water

flow determined by the current position of the control handle 402. In this

embodiment, the temperature mark 87 includes three symbols, C, M, and

H which are abbreviations of cold, middle and hot for representing cold

water, warm water and hot water respectively. The types and the number

of the symbols are not limited.

It should be noted that the water discharge device 1-If of the above

embodiments feature on that the ceramic valve core 20, 20a is mounted

on the water valve seat 10-10d and is enclosed in the tubular cover 30,

30a completely, or enclosed in a combination of the circular cap 80 and

the connection portion 41 of the control handle 402. At the same time, the

connection portion 41 of the control handle 40, 401, 402 is connected to

the valve shaft 21 of the ceramic valve core 20, 20a while the handle

portion 42 is protruding from the through slot 321 of the tubular cover 30,

30a or the through slot 83 of the circular cap 80 for manual operation.

The structure and style of the water valve seat 10-10d are not limited by

the above embodiments. Similarly, how to install the water valve seat

10-10d and the installation position of the same are not limited by the

above embodiments. The structure and style of the ceramic valve core 20,

20a are also not limited by the above embodiments. The ceramic valve

core 20, 20a can be a valve core with two inlets and one outlet for mixing

hot and cold water, a valve core for cold water only and provided with one inlet and one outlet, or a valve core for hot water only and provided with one inlet and one outlet. The way of assembling the ceramic valve core 20, 20a with the water valve seat 10-10d is not limited by the above embodiments. How the tubular cover 30, 30a or the circular cap 80 is fixed is not limited by the above embodiments as long as the ceramic valve core 20, 20a is covered with them.

In summary, the water discharge device 1-If of the present invention

has the following features and function.

Firstly the design is aesthetic and the possibility of accidental contact

is reduced dramatically. The control handle 40, 401 of the present water

discharge device 1-Id can be partially hidden in the tubular cover 30, 30a

and only the protruding portion 421 (a part of the handle portion 42) is

exposed so that the whole appearance is more simple and stylish. The

protruding portion 421 is designed to be set on a peripheral wall of the

tubular cover 30, 30a and having compact volume as well as small

contact area. Thereby the possibility of accidental contact is minimized.

For example, children may touch the water discharge device i-id

unintentionally and turn on the water while they are playing near the device. Only a part of the control handle 402 (the top surface 416) is exposed through the input opening 82 of the circular cap 80 even when the tubular cover 30, 30a is replaced by the circular cap 80. The possibility of accidental contact is also reduced significantly.

Moreover, the device is easy to clean and maintain. The tubular cover

30, 30a is a closed and fixed part designed to be located on top side or

outer side of the water discharge device 1-id. Compared with the

conventional handle, the tubular cover 30, 30a is easier for users to wipe

and wash. The clean surface of the tubular cover 30, 30a is also easy to

maintain no matter for cleaning staff or equipment management

personnel. In addition, in the water discharge device le, If of the sixth

and seventh embodiments, its top wall 415 is partially exposed through

the input opening 82 on top of the circular cap 80 while the top surface

416 of the top wall 415 is designed to be at about the same level as a top

edge 84 of the circular cap 80. This is not only for aesthetic purpose but

also easy to wipe and clean. Users can hold the protruding portion 421 of

the handle portion 42 with one hand and wipe the top surface 416 by the

other hand, without being affected by rotation of the top surface 416.

Furthermore, the design can prevent burns from hot water. The

present water discharge device 1-If delicately uses the arc length or the

position of the through slot 321 to limit the rotation range of the control

handle 40, 401, 402. Thus the control handle 40, 401, 402 is just able to

move to the position close to the full hot position P4 instead of the full

hot position P4. Thereby the temperature of the water discharged from the

ceramic valve core 20 is effectively reduced and burns caused by

discharge of the hot water can be avoided, especially for the elderly and

children.

Water conservation is achieved. The present water discharge device

1-If delicately uses the arc length or the position of the through slot 321

to limit the range of the rotation angle of the control handle 40, 401, 402.

Thus the control handle 40, 401, 402 is only able to move to the position

close to the full open position P5 instead of the full open position P5.

Thereby the maximum amount of water flow discharged from the ceramic

valve core 20a is reduced and thus more water is saved. The water-saving

effect is more obvious while the present devices are installed at public

places.

The present device provides a good indication of the state of the

water discharged. In the water discharge device le, If of the sixth and

seventh embodiments, the state of water flow determined by the

respective positions of the control handle 402 is shown accurately and

clearly by the quantity mark 85 or the temperature mark 87 on the circular

cap 80. For example, the state of water flow can be on or off, the flow

quantity or the temperature level. Thereby users can learn the state of

water flow more intuitively, without hesitation or misjudgment. The

user-centered design not only makes the use of the water discharge device

more flexible and accurate but also meets user requirements.

Additional advantages and modifications will readily occur to those

skilled in the art. Therefore, the invention in its broader aspects is not

limited to the specific details, and representative devices shown and

described herein. Accordingly, various modifications may be made

without departing from the spirit or scope of the general inventive

concept as defined by the appended claims and their equivalent.

Claims

What is claimed is:

1. A water discharge device comprising:

a water valve seat which includes at least one inlet passage and an

outlet passage;

a ceramic valve core which is connected and fixed to the water

valve seat and having a rotary valve shaft which turns on/off

water from the inlet passage to flow to the outlet passage while

being rotated;

a tubular cover having

a seal top,

a peripheral wall extending from the seal top and provided with a

through slot, and

an enclosed space which is defined between the seal top and the

peripheral wall and the ceramic valve core is enclosed and

hidden therein; the through slot communicating with the

enclosed space; and

a control handle which includes

a connection portion mounted in the enclosed space for

connection to the valve shaft of the ceramic valve core, and

a handle portion having one end thereof connected to the connection portion and the other end thereof protruding from the through slot of the tubular cover to form a protruding portion which is able to swing and move in the through slot for moving the ceramic valve core while being operated; wherein the water valve seat includes a cold water inlet passage, a hot water inlet passage, and a mixture outlet passage; the ceramic valve core includes a cold water inlet, a hot water inlet, and a mixture outlet which are communicating with the cold water inlet passage, the hot water inlet passage and the mixture outlet passage respectively; the valve shaft is moved with the control handle being operated not only for turning on/off cold water and hot water from the cold water inlet and the hot water inlet to the mixture outlet, but also for adjustment of a ratio of the cold water to the hot water; wherein the through slot is provided with a start side and an end side; the ceramic valve core is in a closed position when the protruding portion of the control handle is located at the start side; along with the movement of the protruding portion toward the end side, the ceramic valve core is shifted to a full-cold position, a mixed position and a full-hot position/or a position close to the full-hot position in turn; wherein the valve shaft of the ceramic valve core is able to be rotated within a first operating angle and the through slot allows the protruding portion to swing in a second operating angle which is smaller than the first operating angle; thereby the ceramic valve core is limited and only able to move to the position close to the full-hot position; wherein the range of the second operating angle is determined by position of the through slot; wherein the water discharge device further includes a valve cap, an adjusting member and a fastener; wherein the valve cap is threaded and fixed to the water valve seat for pressing and positioning the ceramic valve core on the water valve seat; wherein the adjusting member is threaded on the valve cap and able to be adjusted and moved to attach to an outer surface of a wall in which the water valve seat is hidden; a groove is extending around an outer surface of a peripheral wall of the adjusting member while a threaded through hole is disposed on a peripheral wall of the tubular cover, located close to an opening on the bottom of the tubular cover and corresponding to the groove; wherein the fastener is threaded into the threaded through hole of the tubular cover and further abutting against the groove of the adjusting member so that the tubular cover is not only limited axially and thus unable to be released from the adjusting member, but also fixed and unable to be rotated to keep the through slot at the required position.

2. A water discharge device comprising:

a water valve seat which includes at least one inlet passage and an

outlet passage;

a ceramic valve core which is connected and fixed to the water

valve seat and having a rotary valve shaft which turns on/off

water from the inlet passage to flow to the outlet passage while

being rotated;

a tubular cover having

a seal top,

a peripheral wall extending from the seal top and provided with a

through slot, and

an enclosed space which is defined between the seal top and the

peripheral wall and the ceramic valve core is enclosed and hidden therein; the through slot communicating with the enclosed space; and a control handle which includes a connection portion mounted in the enclosed space for connection to the valve shaft of the ceramic valve core, and a handle portion having one end thereof connected to the connection portion and the other end thereof protruding from the through slot of the tubular cover to form a protruding portion which is able to swing and move in the through slot for moving the ceramic valve core while being operated; wherein the water valve seat includes a cold water inlet passage, a hot water inlet passage, and a mixture outlet passage; the ceramic valve core includes a cold water inlet, a hot water inlet, and a mixture outlet which are communicating with the cold water inlet passage, the hot water inlet passage and the mixture outlet passage respectively; the valve shaft is moved with the control handle being operated not only for turning on/off cold water and hot water from the cold water inlet and the hot water inlet to the mixture outlet, but also for adjustment of a ratio of the cold water to the hot water; wherein the through slot is provided with a start side and an end side; the ceramic valve core is in a closed position when the protruding portion of the control handle is located at the start side; along with the movement of the protruding portion toward the end side, the ceramic valve core is shifted to a full-cold position, a mixed position and a full-hot position/or a position close to the full-hot position in turn; wherein the valve shaft of the ceramic valve core is able to be rotated within a first operating angle and the through slot allows the protruding portion to swing in a second operating angle which is smaller than the first operating angle; thereby the ceramic valve core is limited and only able to move to the position close to the full-hot position; wherein the range of the second operating angle is determined by position of the through slot; wherein the water discharge device further includes a valve cap and a fastener; wherein the valve cap is threaded and fixed to the water valve seat for pressing and positioning the ceramic valve core on the water valve seat; a groove is extending around an outer surface of a peripheral wall of the valve cap while a threaded through hole is disposed on a peripheral wall of the tubular cover, located close to an opening on the bottom of the tubular cover and corresponding to the groove; wherein the fastener is threaded into the threaded through hole of the tubular cover and further abutting against the groove of the valve cap so that the tubular cover is not only limited axially and thus unable to be released from the valve cap, but also fixed and unable to be rotated to keep the through slot at the required position.

3. A water discharge device comprising:

a water valve seat which includes at least one inlet passage and an

outlet passage;

a ceramic valve core which is connected and fixed to the water

valve seat and having a rotary valve shaft which turns on/off

water from the inlet passage to flow to the outlet passage while

being rotated;

a tubular cover having

a seal top,

a peripheral wall extending from the seal top and provided with a

through slot, and an enclosed space which is defined between the seal top and the peripheral wall and the ceramic valve core is enclosed and hidden therein; the through slot communicating with the enclosed space; and a control handle which includes a connection portion mounted in the enclosed space for connection to the valve shaft of the ceramic valve core, and a handle portion having one end thereof connected to the connection portion and the other end thereof protruding from the through slot of the tubular cover to form a protruding portion which is able to swing and move in the through slot for moving the ceramic valve core while being operated; wherein the water valve seat includes an inlet passage and an outlet passage; wherein the bottom of the ceramic valve core is provided with a water inlet which is communicating with the inlet passage while a water outlet is mounted to a peripheral wall of the ceramic valve core for communicating with the outlet passage; wherein the valve shaft is moved with the control handle being operated not only for turning on/off water from the water inlet to the water outlet but also for adjustment of the amount of water flow; wherein the through slot is provided with a start side and an end side; wherein the ceramic valve core is in a closed position when the protruding portion of the control handle is located at the start side; along with the movement of the protruding portion toward the end side, the amount of water flow coming from the water outlet of the ceramic valve core is gradually increased until the ceramic valve core is located at a full open position or a position close to the full open position; wherein the valve shaft of the ceramic valve core is able to be rotated within a first operating angle and the through slot allows the protruding portion to swing in a second operating angle which is smaller than the first operating angle; thereby the ceramic valve core is limited and only able to move to be close to the full open position; wherein the range of the second operating angle is determined by position of the through slot; wherein the water discharge device further includes a valve cap, an adjusting member and a fastener; wherein the water valve seat is provided with a valve-mounting slot in which the ceramic valve core is threaded and fastened; wherein the valve cap is threaded and fixed to the peripheral wall of the ceramic valve core; wherein the adjusting member is threaded on the valve cap and able to be adjusted and moved to attach to an outer surface of a wall in which the water valve seat is hidden; a groove is extending around an outer surface of a peripheral wall of the adjusting member while a threaded through hole is disposed on a peripheral wall of the tubular cover, located close to an opening on the bottom of the tubular cover and corresponding to the groove; wherein the fastener is threaded into the threaded through hole and further abutting against the groove of the adjusting member so that the tubular cover is not only limited axially and thus unable to be released from the adjusting member, but also fixed and unable to be rotated to keep the through slot at the required position.

4. A water discharge device comprising:

a water valve seat which includes at least one inlet passage and an

outlet passage;

a ceramic valve core which is connected and fixed to the water valve seat and having a rotary valve shaft which turns on/off water from the inlet passage to flow to the outlet passage while being rotated; a tubular cover having a seal top, a peripheral wall extending from the seal top and provided with a through slot, and an enclosed space which is defined between the seal top and the peripheral wall and the ceramic valve core is enclosed and hidden therein; the through slot communicating with the enclosed space; and a control handle which includes a connection portion mounted in the enclosed space for connection to the valve shaft of the ceramic valve core, and a handle portion having one end thereof connected to the connection portion and the other end thereof protruding from the through slot of the tubular cover to form a protruding portion which is able to swing and move in the through slot for moving the ceramic valve core while being operated; wherein the water valve seat includes an inlet passage and an outlet passage; wherein the bottom of the ceramic valve core is provided with a water inlet which is communicating with the inlet passage while a water outlet is mounted to a peripheral wall of the ceramic valve core for communicating with the outlet passage; wherein the valve shaft is moved with the control handle being operated not only for turning on/off water from the water inlet to the water outlet but also for adjustment of the amount of water flow; wherein the through slot is provided with a start side and an end side; wherein the ceramic valve core is in a closed position when the protruding portion of the control handle is located at the start side; along with the movement of the protruding portion toward the end side, the amount of water flow coming from the water outlet of the ceramic valve core is gradually increased until the ceramic valve core is located at a full open position or a position close to the full open position; wherein the valve shaft of the ceramic valve core is able to be rotated within a first operating angle and the through slot allows the protruding portion to swing in a second operating angle which is smaller than the first operating angle; thereby the ceramic valve core is limited and only able to move to be close to the full open position; wherein the range of the second operating angle is determined by position of the through slot; wherein the water discharge device further includes a valve cap and a fastener; wherein the water valve seat is provided with a valve-mounting slot in which the ceramic valve core is threaded and fastened; wherein the valve cap is threaded and fixed to the peripheral wall of the ceramic valve core; a groove is extending around an outer surface of a peripheral wall of the valve cap while a threaded through hole is disposed on a peripheral wall of the tubular cover, located close to an opening on the bottom of the tubular cover, and corresponding to the groove; wherein the fastener is threaded into the threaded through hole of the tubular cover and further abutting against the groove of the valve cap so that the tubular cover is not only limited axially and thus unable to be released from the valve cap, but also fixed and unable to be rotated to keep the through slot at the required position.

5.A water discharge device comprising:

a water valve seat which includes at least one inlet passage and an outlet passage; a ceramic valve core which is connected and fixed to the water valve seat and having a rotary valve shaft which turns on/off water from the inlet passage to the outlet passage while being rotated; a cap which includes a cavity, an input opening disposed over the cavity, and a through slot formed on a peripheral wall of the cap and communicating with the cavity; the ceramic valve core is (passed through the input opening to be) mounted and hidden in the cavity; a control handle which includes a connection portion mounted in the enclosed space for connection to the valve shaft of the ceramic valve core and having a top wall for sealing the input opening of the cap so that the ceramic valve core is enclosed and hidden in a space between the cap and the top wall; and a handle portion having one end thereof connected to the connection portion and the other end thereof protruding from the through slot of the cap to form a protruding portion which is able to swing and move in the through slot for moving the ceramic valve core while being operated; wherein the water discharge device further includes a valve cap, an adjusting member and a fastener; wherein the water valve seat is provided with a valve-mounting slot in which the ceramic valve core is threaded and fastened; wherein the valve cap is threaded and fixed to the peripheral wall of the ceramic valve core; wherein the adjusting member is threaded on the valve cap and able to be adjusted and moved to attach to an outer surface of a wall in which the water valve seat is hidden; a groove is extending around an outer surface of a peripheral wall of the adjusting member while a threaded through hole is disposed on a peripheral wall of the cap, located close to an opening on the bottom of the cap, and corresponding to the groove; the fastener is threaded into the threaded through hole and further abutting against the groove of the adjusting member so that the cap is not only limited axially and thus unable to be released from the adjusting member, but also fixed and unable to be rotated to keep the through slot at the required position.

6. A water discharge device comprising:

a water valve seat which includes at least one inlet passage and an

outlet passage;

a ceramic valve core which is connected and fixed to the water

valve seat and having a rotary valve shaft which turns on/off

water from the inlet passage to the outlet passage while being

rotated;

a cap which includes

a cavity,

an input opening disposed over the cavity, and

a through slot formed on a peripheral wall of the cap and

communicating with the cavity; the ceramic valve core is (passed

through the input opening to be) mounted and hidden in the

cavity;

a control handle which includes

a connection portion mounted in the enclosed space for

connection to the valve shaft of the ceramic valve core and

having a top wall for sealing the input opening of the cap so that

the ceramic valve core is enclosed and hidden in a space between

the cap and the top wall; and a handle portion having one end thereof connected to the connection portion and the other end thereof protruding from the through slot of the cap to form a protruding portion which is able to swing and move in the through slot for moving the ceramic valve core while being operated; wherein the water discharge device further includes a valve cap, a fixing member and a fastener; wherein the water valve seat is provided with a valve-mounting slot in which the ceramic valve core is mounted and positioned; wherein the valve cap is threaded and fixed to the water valve seat for pressing and limiting the ceramic valve core in the valve-mounting slot; wherein the fixing member is fit around the valve cap, attached to a top surface of a countertop, and provided with a groove extending around an outer surface of a peripheral wall thereof; a threaded through hole is disposed on a peripheral wall of the cap, located close to an opening on the bottom of the cap, and corresponding to the groove; wherein the fastener is threaded into the threaded through hole of the cap and further abutting against the groove of the fixing member so that the cap is not only limited axially and thus unable to be released from the fixing member, but also fixed and unable to be rotated to keep the through slot at the required position.

7. The device as claimed in claim 1, wherein the tubular cover is one part

while the control handle includes a connecting sleeve and an operating

handle which form the connection portion and the handle portion

respectively; wherein a connecting hole is formed on the center of the

connecting sleeve for allowing the valve shaft of the ceramic valve

core to be inserted and threaded therein; at least one joining hole is

arranged at a peripheral wall of the connecting sleeve; wherein an inner

end of the operating handle is inserted through the through slot and

connected to the joining hole.

8. The device as claimed in claim 2, wherein the tubular cover is one part

while the control handle includes a connecting sleeve and an operating

handle which form the connection portion and the handle portion

respectively; wherein a connecting hole is formed on the center of the

connecting sleeve for allowing the valve shaft of the ceramic valve

core to be inserted and threaded therein; at least one joining hole is

arranged at a peripheral wall of the connecting sleeve; wherein an inner

end of the operating handle is inserted through the through slot and

connected to the joining hole.

9.The device as claimed in claim 3, wherein the tubular cover is one part while the control handle includes a connecting sleeve and an operating handle which form the connection portion and the handle portion respectively; wherein a connecting hole is formed on the center of the connecting sleeve for allowing the valve shaft of the ceramic valve core to be inserted and threaded therein; at least one joining hole is arranged at a peripheral wall of the connecting sleeve; wherein an inner end of the operating handle is inserted through the through slot and connected to the joining hole.

10. The device as claimed in claim 4, wherein the tubular cover is one

part while the control handle includes a connecting sleeve and an

operating handle which form the connection portion and the handle

portion respectively; wherein a connecting hole is formed on the center

of the connecting sleeve for allowing the valve shaft of the ceramic

valve core to be inserted and threaded therein; at least one joining hole

is arranged at a peripheral wall of the connecting sleeve; wherein an

inner end of the operating handle is inserted through the through slot

and connected to the joining hole.

11. The device as claimed in claim 5, wherein the top edge of the cap is

provided with a mark arranged over the through slot and corresponding

to the protruding portion of the handle portion for showing state of water flow determined by current position of the control handle; wherein the mark is a quantity mark for showing quantity of the water flow determined by current position of the control handle; wherein the top wall of the connection portion is further provided with a top surface; an index is arranged at the top surface, corresponding to position from which the handle portion is protruding, and pointing toward the mark for showing state of the water flow determined by current position of the control handle.

12. The device as claimed in claim 6, wherein the top edge of the cap is

provided with a mark arranged over the through slot and corresponding

to the protruding portion of the handle portion for showing state of

water flow determined by current position of the control handle;

wherein the mark is a temperature mark for showing temperature of the

water flow determined by current position of the control handle;

wherein the top wall of the connection portion is further provided with a

top surface; an index is arranged at the top surface, corresponding to

position from which the handle portion is protruding, and pointing

toward the mark for showing state of the water flow determined by

current position of the control handle.

13. The device as claimed in claim 5, wherein the control handle includes a connecting sleeve and an operating handle which form the connection portion and the handle portion respectively; the top wall is formed on the connection portion; wherein a surrounding wall is integrally extending from a bottom surface of the top wall and mounted in the cavity of the cap; a connecting hole is disposed on the bottom of the surrounding wall for allowing the valve shaft of the ceramic valve core to insert through; at least one joining hole is mounted on the surrounding wall; wherein an inner end of the operating handle is inserted through the through slot and connected to the joining hole; wherein the surrounding wall of the connecting sleeve is provided with an outer threaded hole and an inner threaded hole coaxial to each other; the outer threaded hole forms the joining hole and the inner threaded hole is threaded with a fastener which is tightly abutting against an outer wall surface of the valve shaft; wherein an inner end of the operating handle is provided with a threaded portion which can be threaded and connected to the outer threaded hole.

14. The device as claimed in claim 6, wherein the control handle includes

a connecting sleeve and an operating handle which form the connection

portion and the handle portion respectively; the top wall is formed on

the connection portion; wherein a surrounding wall is integrally extending from a bottom surface of the top wall and mounted in the cavity of the cap; a connecting hole is disposed on the bottom of the surrounding wall for allowing the valve shaft of the ceramic valve core to insert through; at least one joining hole is mounted on the surrounding wall; wherein an inner end of the operating handle is inserted through the through slot and connected to the joining hole; wherein the surrounding wall of the connecting sleeve is provided with an outer threaded hole and an inner threaded hole coaxial to each other; the outer threaded hole forms the joining hole and the inner threaded hole is threaded with a fastener which is tightly abutting against an outer wall surface of the valve shaft; wherein an inner end of the operating handle is provided with a threaded portion which can be threaded and connected to the outer threaded hole.