CN212357727U - Washing apparatus - Google Patents

Abstract

The utility model relates to a washing equipment technical field specifically provides a washing equipment, aims at solving among the current washing machine ultrasonic washing device's water supply pipe and supplies water under the great situation of water pressure and probably appear the ruptured problem of body. Mesh for this reason, the utility model discloses a washing equipment includes washing system and pipe-line system, and washing system includes first washing unit and second washing unit, and pipe-line system includes first pipeline and second pipeline, and first pipeline can communicate with first washing unit, and the second pipeline can communicate with second washing unit, and first pipeline and second pipeline all are connected to first water source, and pipe-line system still includes the connecting pipe, and the connecting pipe can communicate first pipeline and second pipeline. The connecting pipe communicates the first pipeline and the second pipeline under the condition that water enters the first pipeline or the second pipeline and the water pressure is large, the situation that the pipe body is broken due to the fact that the water pressure of the first pipeline or the second pipeline is too large is avoided, and normal water supply and washing work of the washing equipment are guaranteed.

Description

Washing apparatus

Technical Field

The utility model relates to a washing equipment technical field specifically provides a washing equipment.

Background

With the continuous progress of the technology level, washing equipment such as washing machines and washing and drying integrated machines become electric equipment in daily life of people. The washing equipment is used for washing clothes, shoes and other articles to be washed, hands of people are liberated, and great convenience is provided for life of people.

In order to better meet the washing requirements of clothes, a washing machine with an ultrasonic auxiliary washing function appears in the market, a user can firstly wash the parts of cuffs, necklines and the like of clothes through an ultrasonic washing device and then put the whole clothes into a washing barrel of the washing machine for washing, and the washing effect is improved. However, the washing tub and the ultrasonic washing apparatus generally employ water supply lines independent of each other. Compared with a washing barrel, the ultrasonic washing device has the advantages that the water consumption is low, and the diameter of a water supply pipeline for supplying water to the ultrasonic washing device is relatively small in order to control the water inflow. In the case of a large water pressure, especially, a pipe body may be broken in a water supply line for supplying water to the ultrasonic washing apparatus.

Accordingly, there is a need in the art for a new solution to the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, for solve the problem that the body is cracked that probably appears in the water supply pipe of ultrasonic wave washing device under the great situation of water pressure among the current washing machine, the utility model provides a washing equipment, washing equipment includes washing system and pipe-line system, washing system includes first washing unit and second washing unit, pipe-line system includes first pipeline and second pipeline, first pipeline can with first washing unit intercommunication, the second pipeline can with second washing unit intercommunication, just first pipeline with the second pipeline all is connected to first water source, wherein, pipe-line system still includes the connecting pipe, the connecting pipe can communicate first pipeline with the second pipeline.

In a preferred embodiment of the washing apparatus, the connection pipe is provided with a first switching valve, and the first pipe and the second pipe can be selectively communicated by changing a state of the first switching valve.

In a preferred technical solution of the above washing apparatus, the second pipeline includes a first pipe section and a second pipe section that are sequentially arranged along a water inlet direction, the first switching valve is arranged between the first pipe section and the second pipe section, a first end of the connecting pipe is connected to the first pipeline, and a second end of the connecting pipe is connected to the first switching valve.

In a preferred embodiment of the above washing apparatus, the first switching valve is a vacuum break valve.

In a preferred technical solution of the above washing apparatus, the second pipe segment includes a main line, and a first branch and a second branch disposed at a downstream end of the main line, and downstream ends of the first branch and the second branch are respectively connected to the first washing unit and the second washing unit.

In a preferred embodiment of the above washing apparatus, a second switching valve is disposed at a downstream end of the main line, and the main line can be selectively communicated with the first branch line or the second branch line by changing a state of the second switching valve.

In a preferred technical solution of the above washing device, the washing device includes a dosing system, the dosing system includes a detergent box and/or a conditioner box, and the detergent box and/or the conditioner box can be communicated with the trunk line.

In a preferred embodiment of the above washing apparatus, the main path is provided with a third switching valve, and the conditioner box can be selectively communicated with the main path by changing a state of the third switching valve.

In the preferable technical scheme of the washing equipment, the second washing unit comprises a liquid storage tank, a washing module and a waste liquid tank, the second branch is connected to the liquid storage tank, the liquid storage tank is connected to the washing module through a pipeline, an overflow port is arranged on the liquid storage tank, and the overflow port is connected to the waste liquid tank through a pipeline.

In a preferred embodiment of the above washing apparatus, the pipeline system further includes a third pipeline, and the first washing unit is connected to a second water source through the third pipeline.

It can be understood by those skilled in the art that, in the technical solution of the present invention, the washing apparatus includes a washing system and a pipe system, the washing system includes a first washing unit and a second washing unit, the pipe system includes a first pipe and a second pipe, the first pipe can be communicated with the first washing unit, the second pipe can be communicated with the second washing unit, and the first pipe and the second pipe are both connected to a first water source, the pipe system further includes a connecting pipe, and the connecting pipe can be communicated with the first pipe and the second pipe.

When first water source supplies water to first washing unit through first pipeline or supplies water to the second washing unit through the second pipeline, if water pressure is too big, the connecting pipe makes first pipeline and second pipeline intercommunication, some of rivers can flow to the second pipeline or partly of rivers can flow to first pipeline through the connecting pipe in the second pipeline through the connecting pipe in the first pipeline, thereby make the water pressure in first pipeline or the second pipeline reduce, the water pressure is too big and cause the cracked condition of body in first pipeline or the second pipeline has been avoided, guarantee washing equipment's normal work.

Drawings

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings in conjunction with a washing machine, in which:

fig. 1 is a schematic view of a piping system of a washing machine according to an embodiment of the present invention;

fig. 2 is a first schematic view of a pipeline structure of a washing machine according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a pipeline structure of a washing machine according to an embodiment of the present invention.

List of reference numerals:

1. a washing tub; 21. a liquid storage tank; 22. an ultrasonic washing module; 23. a liquid supply tube; 24. a first valve; 25. a waste liquid tank; 26. an overflow pipe; 31. a first water source; 32. a second water source; 41. a first pipeline; 411. a second valve; 42. a second pipeline; 421. a first tube section; 422. a second tube section; 4221. a trunk road; 4222. a first branch; 4223. a second branch circuit; 423. a third valve; 424. a three-way valve; 425. a first pump body; 426. a first check valve; 427. a second single-phase valve; 43. a connecting pipe; 431. a vacuum break valve; 44. a third pipeline; 441. a second pump body; 51. a detergent box; 52. a detergent delivery pipe; 53. a fourth valve; 61. a softener box; 62. a softener conveying pipe; 63. and a fifth valve.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present invention has been described in connection with a washing machine, it can be adapted to suit specific applications by those skilled in the art, for example, the washing apparatus of the present invention can be a washing and drying machine, a shoe washing machine, etc. Obviously, the technical solution after adjustment still falls into the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The utility model provides a washing equipment, washing equipment include washing system and pipe-line system, and washing system includes first washing unit and second washing unit, and pipe-line system includes first pipeline and second pipeline, and first pipeline can communicate with first washing unit, and the second pipeline can communicate with second washing unit, and first pipeline and second pipeline all are connected to first water source, and pipe-line system still includes the connecting pipe, and the connecting pipe can communicate first pipeline and second pipeline. The connection pipe is provided with a first switching valve capable of selectively communicating the first and second lines by changing a state of the first switching valve. Specifically, the second pipeline comprises a first pipeline section and a second pipeline section which are sequentially arranged along the water inlet direction, the first switching valve is arranged between the first pipeline section and the second pipeline section, the first end of the connecting pipe is connected to the first pipeline, and the second end of the connecting pipe is connected to the first switching valve. Preferably, the first switching valve is a vacuum break valve.

Through setting up the connecting pipe, the connecting pipe can communicate first pipeline second pipeline, under the too big condition of water pressure in first pipeline or second pipeline water supply process, first pipeline of connecting pipe intercommunication and second pipeline, make in the first pipeline partly inflow second pipeline of rivers or make in the second pipeline partly inflow first pipeline of rivers, thereby make the pressure in first pipeline or the second pipeline reduce, avoided in first pipeline or the second pipeline the too big and lead to the ruptured condition of body of water pressure, washing machine's normal work has been guaranteed. The first switching valve is a vacuum breaker valve, and can automatically change the communication state of the first pipeline and the second pipeline under the influence of water pressure in the process of supplying water to the first pipeline or the second pipeline, so that the pipeline is decompressed more conveniently and quickly.

In a possible embodiment, both ends of the connection pipe are respectively connected with the first pipeline and the second pipeline, a first switching valve is arranged on the connection pipe, and the first pipeline and the second pipeline are communicated or disconnected by changing the state of the first switching valve. It can be understood that the first switching valve can be a common valve, and a user can selectively open and close the first switching valve according to actual conditions; the first switching valve can also be an electric control valve, and the controller controls the electric control valve to be selectively opened and closed according to specific conditions; of course, the first switching valve may be any other suitable valve or the like as long as the connection pipe can communicate the first pipeline and the second pipeline.

Preferably, the second pipe section comprises a main line and a first branch and a second branch which are arranged at the downstream end of the main line, the downstream ends of the first branch and the second branch are respectively connected to the first washing unit and the second washing unit, for example, a second switching valve is arranged at the downstream end of the main line, the second switching valve is connected with the first branch and the second branch, and the main line can be selectively communicated with the first branch and the second branch by changing the state of the second switching valve. And under the condition that the first water source supplies water to the first washing unit through the first pipeline and the water pressure in the first pipeline is high, changing the state of the first switching valve to enable the first pipeline to be communicated with the second pipe section of the second pipeline through the connecting pipe, wherein one part of water flow in the second pipeline flows to the second pipe section of the second pipeline. Under the condition that the second washing unit is not used in the whole washing process, the state of the second switching valve is changed to enable the trunk line of the second pipe section to be communicated with the first branch line, and water flowing into the second pipeline from the first pipeline flows into the first washing unit through the first branch line, so that the condition that the pipe body is broken due to the fact that water pressure in the first pipeline is too large is avoided, all water flows enter the first washing unit, and water inlet efficiency is improved. Under the condition that the second washing unit is needed to be used in the whole washing process, the state of the second switching valve is changed to enable the main circuit of the second pipe section to be communicated with the second branch circuit, and the water flowing into the second pipe from the first pipe flows into the second washing unit through the second branch circuit, so that a part of washing water can be conveyed into the second washing unit, and the whole washing operation time of the second washing unit is shortened.

Preferably, the washing device comprises a dosing system comprising a detergent box and a conditioner box, the detergent box and the conditioner box being capable of communicating with the dry circuit. When the washing machine is used, the detergent box is communicated with the main path so as to convey a certain amount of detergent into the main path, the first water source inputs water flow into the second pipeline, the water flow enters the main path of the second pipeline section through the first pipeline section and is mixed with the detergent to form detergent solution, and the state of the second switching valve is changed so that the main path is communicated with the first branch path or the second branch path, so that the detergent solution is supplied to the first washing unit or the second washing unit. Similarly, during rinsing, the softener box is communicated with the main path so as to convey a certain amount of softener into the main path, the first water source inputs water flow into the second pipeline, the water flow enters the main path of the second pipeline section through the first pipeline section and is mixed with the softener to form softener solution, and the state of the second switching valve is changed so that the main path is communicated with the first branch or the second branch, so that the softener solution is supplied to the first washing unit or the second washing unit.

Preferably, the second washing unit comprises a liquid storage tank, a washing module and a waste liquid tank, if the washing module is an ultrasonic washing module, the downstream end of the second branch is connected to the liquid storage tank, and the liquid storage tank is connected to the ultrasonic washing module through a pipeline. An overflow port is arranged on the liquid storage tank and is connected to the waste liquid tank through a pipeline. Through such setting, the detergent solution that forms in the trunk line can be stored in the liquid reserve tank temporarily, and the detergent further dissolves in aqueous in the in-process that the detergent solution was stored in the liquid reserve tank, makes the detergent dissolve more fully, has avoided the detergent to dissolve insufficiently and influence the problem of washing effect and a large amount of residuals of detergent. And, when the second branch road supplies the detergent solution in to the liquid reserve tank, if the detergent solution is too much and surpass the capacity of liquid reserve tank, the unnecessary detergent solution that gets into in the liquid reserve tank can flow into the waste liquor groove through the overflow mouth on the liquid reserve tank through the pipeline, has avoided the condition that the detergent solution spills over the liquid reserve tank.

It will be understood by those skilled in the art that the ultrasonic cleaning module in the second cleaning unit is only an exemplary one, and those skilled in the art can adjust the ultrasonic cleaning module as needed to suit the specific application, for example, the ultrasonic cleaning module can be a cleaning module that brushes by driving a brush through a transmission mechanism or a cleaning module that beats by driving a beating mechanism through a transmission mechanism.

Preferably, the pipe system comprises a third pipe, and the first washing unit is connected to a second water source through the third pipe, for example, the second water source is a water container. Through such setting, under the circumstances that first water source was cut off the water supply, the second water source can supply water for first washing unit, has satisfied the washing demand.

Reference is now made to fig. 1-3, which are incorporated in detail to describe one embodiment of the present invention. Fig. 1 is a schematic view of a piping system of a washing machine according to an embodiment of the present invention; fig. 2 is a first schematic view of a pipeline structure of a washing machine according to an embodiment of the present invention; fig. 3 is a schematic diagram of a pipeline structure of a washing machine according to an embodiment of the present invention.

As shown in fig. 1 to 3, the washing machine includes a washing system and a pipeline system, the washing system includes a first washing unit and a second washing unit, the first washing unit includes a tank (not shown in the figure) and a washing tub 1, the second washing unit includes a liquid storage tank 21, an ultrasonic washing module 22 and a waste liquid tank 25, an outlet on the liquid storage tank 21 is connected to the ultrasonic washing module 22 through a liquid supply pipe 23, the ultrasonic washing module 22 is connected to the waste liquid tank 25 through a pipeline, a first valve 22 is arranged on the liquid supply pipe 23, an overflow port (not shown in the figure) is arranged on the liquid storage tank 21, and the overflow port is connected to the waste liquid tank 25 through an overflow pipe 26. The piping system includes a first piping 41, a second piping 42, a connection pipe 43, and a third piping 44. Both ends of the first pipe 41 are connected to a first water source 31 (e.g., a tap water pipe) and the washing tub 1, respectively, and the first pipe 41 is provided with a second valve 411. The second pipeline 42 includes a first pipe section 421 and a second pipe section 422 sequentially arranged along the water inlet direction, the diameter of the second pipeline 422 is smaller than that of the first pipeline 421, the upstream end of the first pipe section 421 is connected to the first water source 31, a vacuum break valve 431 is arranged between the downstream end of the first pipe section 421 and the second pipe section 422, the first end of the connecting pipe 43 is connected to the portion of the first pipeline 41 downstream of the second valve 411, the second end of the connecting pipe 43 is connected to the vacuum break valve 431, in the case that the vacuum break valve 431 is in a normal state, the first pipe section 421 and the second pipe section 422 are communicated, and the connecting pipe 43 is disconnected from the second pipeline 42. The second pipe section 422 comprises a main line 4221, and a first branch 4222 and a second branch 4223 which are arranged at the downstream end of the main line 4221, wherein the main line 4221 is sequentially provided with a first check valve 426, a first pump body 425 and a second check valve 427 from the upstream end to the downstream end, the downstream end of the main line 4221 is provided with a three-way valve 424, the three-way valve 424 is connected with the first branch 4222 and the second branch 4223, the downstream end of the first branch 4222 is connected to the washing tub 1, and the downstream end of the second branch 4223 is connected to the liquid storage tank 21. The washing machine comprises a detergent box 51 and a softener box 61, wherein the detergent box 51 is connected to a part between the upstream end of a trunk line 4221 and a first one-way valve 426 through a detergent delivery pipe 52, a fourth valve 53 is arranged on the detergent delivery pipe 52, a fifth valve 63 is arranged on a part between the upstream end of the trunk line 4221 and the first one-way valve 426, the fifth valve 63 is a three-way valve, and the softener box 61 is connected to the fifth valve 63 through a softener delivery pipe 62. Both ends of the third pipeline 44 are connected to the second water source 32 and the washing tub 1, respectively, and a second pump body 441 is provided on the third pipeline 44. For example, the second water source 32 is bath water after the user takes a bath.

In the process of washing clothes by using the washing machine, the ultrasonic washing module 22 in the second washing unit is firstly used for washing the parts with serious local stains, such as the neckline, the cuffs and the like of the clothes. Specifically, the third valve 423 is opened and the three-way valve 424 is switched to communicate the main line 4221 with the second branch 4223, the first water source 31 starts to supply water into the second pipeline 42, and the water flows through the first pipe segment 421, the vacuum break valve 431, the main line 4221, the three-way valve 424 and the second branch 4223 in sequence and enters the liquid storage tank 21. When detergent needs to be added, the fourth valve 53 is opened, the first pump body 441 is operated, the detergent box 51 feeds a certain amount of detergent into the main line 4221 through the detergent delivery pipe 52, then the first water source 31 supplies water to the second pipeline 42, and the water is mixed with the detergent in the main line 4221 to form detergent solution and enters the liquid storage tank 21 through the second branch 4223. When the ultrasonic washing module 22 washes a part of clothes, the first valve 24 is opened, the detergent solution in the liquid storage tank 21 is continuously supplied to the ultrasonic washing module 22, and waste liquid generated after washing is discharged into the waste water tank 25. In the process that the first water source 31 supplies water to the second pipeline 42, if the pressure in the second pipeline 42 exceeds the first set pressure of the vacuum breaker valve 431, the vacuum breaker valve 431 enables the connecting pipe 43 to be simultaneously communicated with the first pipe section 521 and the second pipe section 422, one part of the water flow in the first pipe section 421 flows to the second pipe section 422, the other part of the water flow flows into the first pipeline 41 through the connecting pipe 43 and finally enters the washing tub 1, so that the situation that the pipe body is broken due to the overlarge water pressure in the second pipeline 42 is avoided, and the normal water supply and the normal work of the washing machine are ensured.

The clothes are then washed in their entirety using the second washing unit. Specifically, the second valve 411 is opened and the state of the three-way valve 424 is switched to communicate the main line 4221 with the first branch 4222, the first water source 31 starts to supply water into the first pipe 41, and the water flows into the washing tub 1 through the first pipe 41. In this process, if the pressure in the first pipeline 41 exceeds the second set pressure of the vacuum breaker valve 431, the vacuum breaker valve 431 enables the connecting pipe 43 to be communicated with the second pipe section 422, one part of the water flow in the first pipeline 41 directly flows to the washing tub 1, the other part of the water flow flows into the second pipe section 422 through the connecting pipe 43 and flows into the washing tub 1 through the main line 4221 and the first branch 4222, so that the situation that the pipe body is broken due to the fact that the water pressure in the first pipeline 41 is too large is avoided, all the water flow can enter the washing tub 1, and the water inlet efficiency is improved. After the water is completely fed into the washing tub 1, the fourth valve 53 is opened, the first pump body 441 is operated, the detergent box 51 feeds a certain amount of detergent into the main line 4221 through the detergent delivery pipe 52, then the first water source 31 supplies water to the second pipeline 42, the detergent is mixed with water flow in the main line 4221 to form detergent solution, and the detergent solution enters the washing tub 1 through the first branch 4222, so that the detergent is added into the washing tub 1. It can be understood that, in the process of rinsing the clothes in the washing tub 1, the state of the fifth valve 63 is switched to communicate the softener delivery pipe 62 with the trunk 4221, the softener box 4221 provides a certain amount of softener into the trunk 4221, then the state of the fifth valve 63 is switched to disconnect the softener delivery pipe 62 from the trunk 4221, so that the first water source 31 supplies water to the second pipeline 52, and the softener is mixed with water flow in the trunk 4221 to form a softener solution and enters the washing tub 1 through the first branch 4222, thereby realizing the addition of the softener into the washing tub 1.

In case of water cut-off of the first water source 31, water can be supplied into the washing tub 1 through the third pipeline 44 by means of the second water source 32, thereby satisfying the requirement of washing the laundry in case of water cut-off of the first water source 31. The bathing water of the second water source 32 after the user has bathed can carry out the reutilization to the bathing water, has improved the utilization ratio of water resource, has avoided the waste of water resource. It will be appreciated by those skilled in the art that the second water source 32 may also be provided as a water storage tank in which a certain amount of water is stored in daily life for use in washing the laundry in case the first water source 31 is cut off.

It will be understood by those skilled in the art that the second valve 411 and the third valve 423 are respectively disposed on the first pipeline 41 and the second pipeline 42, and the control of the first water source 31 to the first pipeline 41 or the second pipeline 42 through the second valve 411 and the third valve 423 is only an exemplary description, and those skilled in the art can adjust the control according to the needs to suit the specific application, for example, the first water source 31 can be directly connected to the first pipeline 41 and the second pipeline 42 through a three-way valve, and the control of the first water source 31 to the first pipeline 41 or the second pipeline 42 can be performed by switching the state of the three-way valve.

It can be seen from the above description that the technical scheme of the utility model in, through setting up the connecting pipe that can communicate first pipeline and second pipeline, make first pipeline and second pipeline intercommunication with the help of the connecting pipe under the too big circumstances of first pipeline or second pipeline water pressure of intaking, can avoid the too big ruptured problem of body that leads to of water pressure in first pipeline and the second pipeline. The communication state of the connecting pipe, the first pipeline and the second pipeline is changed by arranging the vacuum breaker valve, and the vacuum breaker valve can automatically switch the communication state according to the water pressure, so that the pipeline with overlarge pressure is decompressed conveniently and quickly. The second pipeline comprises a first pipeline section and a second pipeline section, the second pipeline section comprises a main line, a first branch and a second branch, the first branch and the second branch are respectively connected to the first washing unit and the second washing unit, and the detergent box and the softener box can be communicated with the main line, so that detergent or softener can be conveniently put into the first washing unit and the second washing unit.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A washing apparatus comprising a washing system comprising a first washing unit and a second washing unit, and a pipe system comprising a first pipe communicable with the first washing unit and a second pipe communicable with the second washing unit, both the first pipe and the second pipe being connected to a first water source,

the pipeline system further comprises a connecting pipe, and the connecting pipe can be communicated with the first pipeline and the second pipeline.

2. The washing apparatus as claimed in claim 1, wherein the connection pipe is provided with a first switching valve, and the first and second pipes can be selectively communicated by changing a state of the first switching valve.

3. The washing apparatus as claimed in claim 2, wherein the second pipeline includes a first pipe section and a second pipe section which are sequentially arranged in the water inlet direction, the first switching valve is arranged between the first pipe section and the second pipe section, a first end of the connection pipe is connected to the first pipeline, and a second end of the connection pipe is connected to the first switching valve.

4. The washing apparatus as recited in claim 3 wherein the first switching valve is a vacuum break valve.

5. The washing apparatus of claim 3, wherein the second pipe segment includes a main line and first and second branches disposed at downstream ends of the main line, the downstream ends of the first and second branches being connected to the first and second washing units, respectively.

6. The washing apparatus as claimed in claim 5, wherein a downstream end of the trunk line is provided with a second switching valve, and the trunk line can be selectively communicated with the first branch line or the second branch line by changing a state of the second switching valve.

7. A washing device according to claim 6, comprising a dosing system comprising a detergent box and/or a conditioner box, the detergent box and/or the conditioner box being communicable with the dry circuit.

8. The washing apparatus as claimed in claim 7, wherein a third switching valve is provided on the trunk, and the conditioner box can be selectively communicated with the trunk by changing a state of the third switching valve.

9. A washing apparatus according to claim 6, wherein the second washing unit comprises a tank, a washing module and a waste tank, the second branch being connected to the tank, the tank being connected to the washing module by a pipe, the tank being provided with an overflow, the overflow being connected to the waste tank by a pipe.

10. The washing apparatus as claimed in any one of claims 1 to 9, wherein the pipe system further comprises a third pipe through which the first washing unit is connected to a second water source.

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