CN219908213U - Water inlet structure of external detergent dispenser and external detergent dispenser - Google Patents

Abstract

The utility model discloses a water inlet structure of an external detergent dispenser and the external detergent dispenser, which comprise a shell, wherein a water inlet cavity is formed in the shell, a water inlet pipe and a water outlet pipe which are communicated with the water inlet cavity are arranged in the shell, and the water outlet pipe is positioned at the bottom of the shell and extends into the water inlet cavity; the valve core is at least partially arranged in the water outlet pipe in a sliding way; the driving assembly is arranged in the shell, drives the valve core to move in the water outlet pipe and is used for conducting/closing the water outlet pipe. According to the utility model, the water outlet pipe is directly plugged by the valve core, and the movement of the valve core is controlled by the driving assembly, so that the pressure difference between the water inlet cavity and the cavity of the washing equipment does not exist, and the valve core is convenient to move to perform liquid feeding operation; the water outlet pipe protrudes out of the bottom of the washing cavity, so that a buffer zone is formed in the water inlet cavity, and the detergent flows into the washing equipment more stably and smoothly through the water outlet pipe.

Description

Water inlet structure of external detergent dispenser and external detergent dispenser

Technical Field

The utility model belongs to the technical field of clothes treatment, and particularly relates to a water inlet structure of an external detergent dispenser and the external detergent dispenser.

Background

At present, with the popularization of shared washing machines in universities, the automatic throwing demand of campus washing on the laundry detergent is synchronously increased, the demand of a detergent dispenser is gradually enhanced, and students can accurately control the throwing amount of the detergent through the detergent dispenser without carrying the detergent; the special detergent is matched with the detergent dispenser, so that the decontamination and sterilization effects of clothes are improved, and the water pollution caused by washing sewage is avoided.

With the use of the detergent dispenser, the problems of long water inlet time, incapability of water inlet or water inlet valve failure occur in actual use, and the problems are discovered through investigation and observation, because of the water inlet valve. The inlet valves of commercial washing machines on the market are commonly used as pilot inlet valves, and when an external detergent dispenser is in liquid feed, if impurities exist in the detergent or the detergent is denatured, the following problems are caused: when the water inlet side hole of the diaphragm plate of the water inlet valve flows into the detergent and is blocked by sundries in water/detergent, the sealing diaphragm can not be effectively closed, and water in the water supply chamber is directly discharged through the water outlet, so that the valve core can not be effectively closed to leak water; in addition, the water inlet and the water outlet are generally connected and transited through a straight pipe, and a buffer area is not arranged at the transition space, so that water flow is too turbulent and can not smoothly flow out.

The present utility model has been made in view of this.

Disclosure of Invention

The utility model aims to solve the technical problems of overcoming the defects of the prior art and providing a water inlet structure of an external detergent dispenser, wherein the water outlet pipe is directly plugged by a valve core, and the movement of the valve core is controlled by a driving component, so that the pressure difference between a water inlet cavity and a chamber of washing equipment does not exist, and the valve core is convenient to move to perform liquid feeding operation; the water outlet pipe protrudes out of the bottom of the washing cavity, so that a buffer zone is formed in the water inlet cavity, and the detergent flows into the washing equipment more stably and smoothly through the water outlet pipe.

Another object of the present utility model is to provide an external detergent dispenser.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that: the external detergent dispenser comprises a shell, wherein a water inlet cavity is formed in the shell, a water inlet pipe and a water outlet pipe which are communicated with the water inlet cavity are arranged in the shell, and the water outlet pipe is positioned at the bottom of the shell and extends to the inside of the water inlet cavity;

the valve core is at least partially arranged in the water outlet pipe in a sliding way;

the driving assembly is arranged in the shell, drives the valve core to move in the water outlet pipe and is used for conducting/closing the water outlet pipe.

Further, the pipe orifice at one end of the water outlet pipe is flush with the bottom of the shell, and the length of the other end extending towards the inside of the water inlet cavity is smaller than the height of the water inlet pipe from the bottom of the water inlet cavity.

Further, a sealing ring is arranged on the water outlet pipe and/or the valve core.

Further, the longitudinal section of the outer wall of the water outlet pipe is an isosceles trapezoid with a narrow upper part and a wide lower part.

Further, an installation cavity is arranged in the shell, a partition plate is arranged between the installation cavity and the water inlet cavity, a through hole penetrating through the two cavities is arranged on the partition plate, the driving assembly comprises,

an electromagnet arranged in the mounting cavity,

one end of the spring is connected with the end part of the valve core, and the other end of the spring is connected with the side wall of the mounting cavity and is used for providing resilience force for resetting the valve core;

the electromagnet is positioned above the spring.

Further, the valve core is made of magnetic materials.

The utility model also provides an external detergent dispenser with the water inlet structure, which further comprises a liquid storage box for storing detergent;

the mixing chamber is positioned below the liquid storage box and is communicated with the liquid storage box through a first water pipe, and the mixing chamber is also provided with a water inlet and a water outlet;

the water outlet is connected with a water inlet pipe in the water inlet structure through a second water pipe.

Further, the water inlet is positioned at the bottom of the mixing chamber, and a one-way valve is arranged in the water inlet.

Further, the water inlet and the first water pipe are staggered at the joint of the mixing chamber.

Further, the bottom of the mixing chamber is provided with a plurality of water outlets which are respectively connected with a water inlet pipe of an independent water inlet structure;

and a switching valve is also arranged in the mixing chamber and connected with each water outlet for switching the waterway of each water outlet and the water inlet pipe of the corresponding water inlet structure.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects:

(1) According to the utility model, the water outlet pipe, the valve core and the driving assembly are arranged in the shell, wherein the valve core is at least partially inserted into the water outlet pipe, when the detergent is required to be put in through the water outlet pipe, the whole water inlet chamber and the washing equipment directly have no pressure difference, the valve core is easily driven to be separated from the water outlet pipe by the driving assembly, and the detergent is directly put in the washing equipment through the water outlet pipe, and the water inlet structure is designed to effectively avoid the situation that the valve core can not block the water outlet pipe.

(2) According to the utility model, the water outlet pipe is arranged at the bottom of the shell, and the pipe orifice at the upper end extends vertically towards the inside of the water inlet cavity, so that a circular water inlet cavity is formed in the water inlet cavity, a buffer space exists for the washing liquid entering the water inlet cavity from the water inlet pipe, and the washing liquid entering the water inlet pipe cannot directly enter the water inlet pipe, so that the washing liquid cannot enter the water inlet pipe smoothly due to excessive turbulence at the water inlet pipe orifice.

(3) According to the utility model, the distance from the water inlet pipe to the bottom of the water inlet cavity is set to be larger than the height of the water outlet pipe in the water inlet cavity, so that on one hand, the area of an annular buffer area formed by the water inlet cavity and the water outlet pipe in a matched manner can be ensured to be large enough; on the other hand, the detergent entering from the water inlet pipe has enough height, and the falling detergent can impact the residual detergent at the bottom of the water inlet cavity and can be further mixed before entering the washing equipment.

(4) According to the utility model, the liquid storage box and the mixing chamber are arranged and connected with the drainage structure, and meanwhile, the switching valve and the plurality of water outlets are arranged in the mixing chamber, so that the detergent can be directionally put into the washing equipment to be washed by utilizing the switching valve according to the requirements of users; when the detergent dispenser is applied to occasions such as universities, only one detergent dispenser is needed to control the dispensing action of a plurality of washing devices, so that the detergent dispenser has certain economical efficiency.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic view of an external detergent dispenser according to the present utility model;

FIG. 2 is a schematic view of the water intake structure of an external detergent dispenser according to the present utility model.

In the figure: 1. a housing; 11. a mounting cavity; 12. a water inlet cavity; 121. a water inlet pipe; 122. a water outlet pipe; 2. a drive assembly; 21. an electromagnet; 22. a spring; 3. a valve core; 4. a liquid storage box; 5. a mixing chamber; 51. a water inlet; 52. a water outlet; 6. a second water pipe; 7. a first water pipe; 8. a switching valve; 9. a one-way valve.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 2, the external detergent dispenser according to the present utility model includes a housing 1, a valve core 3, and a driving assembly 2.

The inside of the shell 1 is provided with a water inlet cavity 12, the shell 1 is provided with a water inlet pipe 121 and a water outlet pipe 122 which are communicated with the water inlet cavity 12, and the water outlet pipe 122 is positioned at the bottom of the shell 1 and extends towards the inside of the water inlet cavity 12.

The valve core 3 is at least partially slidably arranged in the water outlet pipe 122;

the driving assembly 2 is arranged in the shell 1, drives the valve core 3 to move in the water outlet pipe 122 and is used for conducting/closing the water outlet pipe 122.

In the utility model, the lower half part of the shell 1 is provided with the water inlet cavity 12, and the outer side of the shell 1 is provided with the water inlet pipe 121 and the water outlet pipe 122, wherein the water inlet pipe 121 and the water outlet pipe 122 can be fixed on the shell 1 in a threaded connection mode. Similarly, the water inlet pipe 121 and the water outlet pipe 122 may be directly connected by other fixing methods such as plugging, welding, bonding, etc.

The water outlet pipe 122 is disposed at the bottom of the housing 1, wherein a nozzle at the upper end extends vertically toward the inside of the water inlet chamber 12. The water outlet pipe 122 is disposed inside the water inlet chamber 12 and protrudes from the bottom sidewall of the water inlet chamber 12, so that a circular water inlet chamber 12 is formed in the water inlet chamber 12, and a buffer space exists for the washing liquid entering the water inlet chamber 12 from the water inlet pipe 121.

The valve core 3 is slidably inserted into the water outlet pipe 122, at least part of the valve core 3 can plug the pipe orifice of the water outlet pipe 122 in an initial state, and after the water outlet pipe 122 is connected with the water inlet pipe 121 of the washing equipment, the water outlet pipe 122 is always in a plugged state when no detergent is added; meanwhile, since the valve core 3 is initially inserted into the water outlet pipe 122, a pressure difference is not generated between the housing 1 of the water inlet structure and the washing apparatus. When the valve core 3 is directly driven to move in the water outlet pipe 122 until the valve core is disconnected by the driving assembly 2 during starting, the water outlet pipe 122 is conducted and detergent can be added into connected washing equipment.

In this way, the valve core 3 is directly inserted into the water outlet pipe 122, unlike the conventional pilot water inlet valve, a pressure difference needs to be formed through the water inlet side hole, so that the valve core 3 is opened to perform the operation of putting the detergent, and if the water inlet side hole of the diaphragm plate is blocked by impurities of the detergent, the sealing diaphragm cannot be completely closed, so that the valve core 3 cannot be effectively closed to leak water. The water inlet structure forms a non-differential drainage mode, and effectively avoids the occurrence of blocking.

Meanwhile, the water inlet pipe 121 forms an annular buffer area in the water inlet cavity 12, so that the detergent entering from the water inlet pipe 121 cannot directly enter the water inlet pipe 121, and cannot enter the water inlet pipe 121 smoothly due to excessive turbulence at the opening of the water inlet pipe 121; in addition, as the detergent is intermittently put in, the water inlet structure is required to be started when a user has a washing requirement. The detergent residue is necessarily present at the bottom of the water inlet chamber 12, so that the detergent flowing through the water inlet pipe 121 performs impact mixing on the detergent precipitated at the bottom, thereby timely mixing and utilizing the detergent at the bottom, and avoiding waste.

Further, the pipe orifice at one end of the water outlet pipe 122 is flush with the bottom of the housing 1, and the length of the other end extending toward the inside of the water inlet cavity 12 is smaller than the height of the water inlet pipe 121 from the bottom of the water inlet cavity 12.

In the present utility model, the lower pipe of the water outlet pipe 122 is flush with the bottom of the housing 1. Preferably, the housing 1 is divided into an upper part and a lower part, and the housing 1 of the upper part and the lower part is mutually buckled. The lower shell 1 and the water outlet pipe 122 are integrally formed. That is, the water outlet pipe 122 is recessed upward from the lower surface of the housing 1, and is shaped as an inverted funnel as a whole.

The water inlet pipe 121 is arranged on the side wall of the shell 1, wherein the distance between the water inlet pipe 121 and the bottom of the water inlet cavity 12 is larger than the recessed height of the water outlet pipe 122 in the water inlet cavity 12, so that on one hand, the area of an annular buffer area formed by the water inlet cavity 12 and the water outlet pipe 122 in a matched manner can be ensured to be large enough, on the other hand, the detergent entering from the water inlet pipe 121 has a sufficient height, and the detergent left at the bottom of the water inlet cavity 12 can be impacted by falling and can be further mixed before entering the washing equipment; the nozzle of the water inlet pipe 121 is higher than the nozzle of the water outlet pipe 122, so that the detergent entering from the water inlet pipe 121 is not located at a position overlapped with the buffer area, and the effect of reducing the impact mixing effect of the detergent at the bottom of the water inlet cavity 12 is not achieved.

Further, a sealing ring is provided on the water outlet pipe 122 and/or the valve core 3.

In the present utility model, an annular groove is formed on the inner wall of the water outlet pipe 122, and a sealing ring is embedded in the annular groove. Or an annular groove is formed in the outer side of the valve core 3, and a sealing ring is fixedly sleeved in the annular groove. Preferably, a sealing ring is provided on the valve element 3.

By arranging the sealing ring on the surface of the valve core 3, which is in contact with the water outlet pipe 122, it is ensured that the part of the valve core 3 inserted into the sealing ring can completely seal the water outlet pipe 122 in the initial state, so as to avoid water leakage.

Further, the longitudinal section of the outer wall of the water outlet pipe 122 is an isosceles trapezoid with a narrow upper part and a wide lower part.

In the present utility model, the outer wall of the water outlet pipe 122 is integrally in a shape of a truncated cone, and the outer wall of the water outlet pipe 122 is in an appearance of narrow top and wide bottom, so that the detergent in the water inlet cavity 12 is more beneficial to be guided to the pipe orifice of the water outlet pipe 122 when rising; in addition, the space of the water inlet cavity 12 can be ensured by being arranged in a cone shape, so that the space of the buffer area is larger.

Further, an installation cavity 11 is further arranged in the casing 1, a partition plate is arranged between the installation cavity 11 and the water inlet cavity 12, through holes penetrating through the two cavities are formed in the partition plate, and the driving assembly 2 comprises an electromagnet 21 and a spring 22.

The electromagnet 21 is disposed in the mounting chamber 11.

One end of the spring 22 is connected with the end part of the valve core 3, and the other end of the spring 22 is connected with the side wall of the mounting cavity 11 and is used for providing resilience force for resetting the valve core 3;

the electromagnet 21 is located above the spring 22.

In the present utility model, in the above description of the housing 1, the housing 1 located at the upper portion is provided with the installation chamber 11, wherein a partition plate is provided at the bottom of the installation chamber 11 and/or at the upper end of the water inlet chamber 12, and a through hole penetrating the partition plate is provided to communicate the two chambers.

Wherein, electromagnet 21, spring 22 are set in the installation cavity 11, one end of the spring 22 is connected with the side wall of the installation cavity 11, and the other end of the spring 22 is fixedly connected with the valve core 3. The valve core 3 penetrates through the through hole in the partition board and can be arranged in a sliding manner. Specifically, the electromagnet 21 is located above the valve core 3, and by means of the power-on and power-off actions of the electromagnet 21 and the telescopic action of the spring 22, the valve core 3 moves on the water outlet pipe 122, so that the water outlet pipe 122 is conducted or plugged.

Specifically, the valve core 3 is made of a magnetic material, and the valve core 3 can be made of iron.

The utility model also discloses an external detergent dispenser with the water inlet structure of the embodiment, and the external detergent dispenser also comprises a liquid storage box 4 and a mixing chamber 5.

The liquid storage box 4 is used for storing the detergent;

the mixing chamber 5 is positioned below the liquid storage box 4, the mixing chamber 5 is communicated with the liquid storage box 4 through a first water pipe 7, and the mixing chamber 5 is also provided with a water inlet 51 and a water outlet 52;

the water outlet 52 is connected with a water inlet pipe 121 in the water inlet structure through a second water pipe 6.

The water inlet 51 is positioned at the bottom of the mixing chamber 5, and the one-way valve 9 is arranged in the water inlet 51.

In the utility model, the dispenser is integrally formed by the liquid storage box 4 and the mixing chamber 5. The liquid storage box 4 can be directly filled with the detergent, or a plurality of detergent bottles can be arranged in the liquid storage box 4, and various types of detergents or different brands of detergents are respectively filled according to actual requirements. Wherein, the detergent bottle is connected with a preset water pump.

The liquid storage box 4 is communicated with the mixing chamber 5 through a second water pipe 6, and the corresponding detergent is pumped out of the detergent bottle through a water pump and pumped into the mixing chamber 5. Meanwhile, a water inlet 51 is arranged at the bottom of the mixing chamber 5, and a one-way valve 9 is arranged at the water inlet 51. The water inlet 51 is connected to an external tap water pipe, and is connected to the inside of the mixing chamber 5 by a check valve 9, and is mixed with the detergent by tap water, wherein the tap water introduced from the bottom can sufficiently impact and mix the detergent, and is discharged through a water outlet 52 provided at the bottom of the mixing chamber 5.

Preferably, the check valve 9 is a normally closed check valve. The water inlet valve of the detergent dispenser on the market adopts a normally open water inlet valve, and when the dispenser is connected with a water tap pipeline, a waterway which is communicated for a long time easily causes damage to components in the detergent dispenser, so that the subsequent use is influenced. When no water is fed into the mixing chamber 5, the one-way valve 9 can separate the mixing chamber from an external tap water passage, so that the defect of a normally-open water inlet valve can be overcome.

In addition, the water outlet 52 of the mixing chamber 5 is connected with the water inlet pipe 121 of the water inlet structure through the first water pipe 7. The water inlet structure is arranged at a detergent throwing port of external washing equipment, and when a user has washing demands, the mixed detergent can be thrown into the washing equipment by using the dispenser with the water inlet structure.

Further, the water inlet 51 and the first water pipe 7 are staggered at the joint of the mixing chamber 5.

In the present utility model, the first water pipe 7 at the bottom of the mixing chamber 5 is disposed at a position not overlapping with the water inlet 51 in the vertical direction. Thus, when the one-way valve 9 is opened, tap water is introduced into the mixing chamber 5 and the detergent introduced from above is mixed, and the openings of the two are staggered, the entered tap water does not directly impact the mixing chamber 5 at the position where the first water pipe 7 is connected, so that the tap water entering from below is prevented from interfering with or affecting the detergent introduction when the detergent is introduced into the mixing chamber 5 from the liquid storage box 4.

Further, the bottom of the mixing chamber 5 is provided with a plurality of water outlets 52, and the water outlets 52 are respectively connected with the water inlet pipe 121 of the independent water inlet structure;

the mixing chamber 5 is also provided with a switching valve 8 connected with each water outlet 52 for switching the waterway of each water outlet 52 and the water inlet pipe 121 of the corresponding water inlet structure.

In the present utility model, a plurality of water outlets 52 are arranged at intervals along the length direction at the bottom of the mixing chamber 5, and each water outlet 52 corresponds to the water inlet pipe 121 of a water inlet structure independently, so that the addition of the detergent to different washing devices can be performed through one mixing chamber 5.

In addition, a switching valve 8 is further disposed in the mixing chamber 5, and the switching valve 8 controls the plurality of water outlets 52 to be conducted respectively, so that detergent can be directionally thrown into the washing equipment to be washed by using the switching valve 8 according to the requirement of a user; when the detergent dispenser is applied to occasions such as universities, only one detergent dispenser is needed to control the dispensing action of a plurality of washing devices, so that the detergent dispenser has certain economical efficiency.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by the equivalent embodiment without departing from the scope of the technical solution of the present utility model.

Claims (10)

1. The utility model provides an external detergent dispenser's water inlet structure which characterized in that: comprising the steps of (a) a step of,

the water inlet device comprises a shell (1), wherein a water inlet cavity (12) is formed in the shell (1), a water inlet pipe (121) and a water outlet pipe (122) are arranged in the shell (1), and the water outlet pipe (122) is positioned at the bottom of the shell (1) and extends into the water inlet cavity (12);

the valve core (3) is at least partially arranged in the water outlet pipe (122) in a sliding way;

the driving assembly (2) is arranged in the shell (1) and is used for driving the valve core (3) to move in the water outlet pipe (122) and used for conducting/closing the water outlet pipe (122).

2. The water intake structure of an external detergent dispenser of claim 1, wherein: the pipe orifice at one end of the water outlet pipe (122) is flush with the bottom of the shell (1), and the length of the other end extending towards the inside of the water inlet cavity (12) is smaller than the height of the water inlet pipe (121) from the bottom of the water inlet cavity (12).

3. The water intake structure of an external detergent dispenser as claimed in claim 2, wherein: and a sealing ring is arranged on the water outlet pipe (122) and/or the valve core (3).

4. A water inlet structure of an external detergent dispenser according to claim 3, wherein: the longitudinal section of the outer wall of the water outlet pipe (122) is an isosceles trapezoid with a narrow upper part and a wide lower part.

5. The water intake structure of an external detergent dispenser according to any one of claims 1 to 4, wherein: an installation cavity (11) is further arranged in the shell (1), a partition plate is arranged between the installation cavity (11) and the water inlet cavity (12), through holes penetrating through the two cavities are formed in the partition plate, the driving assembly (2) comprises,

an electromagnet (21) arranged in the mounting cavity (11),

one end of the spring (22) is connected with the end part of the valve core (3), and the other end of the spring is connected with the side wall of the mounting cavity (11) and is used for providing resilience force for resetting the valve core (3);

the electromagnet (21) is positioned above the spring (22).

6. The water intake structure of an external detergent dispenser of claim 5, wherein: the valve core (3) is made of magnetic materials.

7. An external detergent dispenser having the water inlet structure of any one of claims 1 to 6, characterized in that: also included is a method of manufacturing a semiconductor device,

a liquid storage box (4) for storing detergent;

the mixing chamber (5) is positioned below the liquid storage box (4), the mixing chamber (5) is communicated with the liquid storage box (4) through a first water pipe (7), and the mixing chamber (5) is further provided with a water inlet (51) and a water outlet (52);

the water outlet (52) is connected with a water inlet pipe (121) in the water inlet structure through a second water pipe (6).

8. An external detergent dispenser as claimed in claim 7, wherein: the water inlet is positioned at the bottom of the mixing chamber (5), and a one-way valve (9) is arranged in the water inlet (51).

9. An external detergent dispenser as claimed in claim 8, wherein: the water inlet (51) and the first water pipe (7) are staggered at the joint of the mixing chamber (5).

10. An external detergent dispenser according to any of claims 8-9, wherein: the bottom of the mixing chamber (5) is provided with a plurality of water outlets (52), and the water outlets (52) are respectively connected with a water inlet pipe (121) of an independent water inlet structure;

the mixing chamber (5) is also provided with a switching valve (8) which is connected with each water outlet (52) and is used for switching the waterway of each water outlet (52) and the water inlet pipe (121) of the corresponding water inlet structure.