CN118542631A - Water flow system for cleaning machine and cleaning machine - Google Patents

Abstract

The present invention relates to a water flow system for a washing machine and a washing machine. The water flow system comprises a water supply pipe, on which a water outlet is arranged; a spray assembly, which is used to spray articles in the washing machine; the water outlet has two working states: in a first working state, the water outlet is connected to the spray assembly and delivers water to it; in a second working state, the water outlet is disconnected from the spray assembly, and the water outlet is used as a nozzle to spray the articles in the washing machine. The water outlet has multiple uses, and can supply water to the spray assembly and can also be used as a nozzle for local enhanced washing.

Description

Water flow system for cleaning machine and cleaning machine

Technical Field

The present invention relates to the technical field of washing machines for washing tableware and/or fruits and vegetables, and in particular to a water flow system for a washing machine and a washing machine.

Background Art

At present, the upper spray arm connection pipe of the washing machine for washing dishes and/or fruits and vegetables in the industry is generally installed on the bowl basket. After the bowl basket is placed in the washing chamber, the upper spray arm connection pipe is then connected to the water supply pipe located on the side wall of the washing chamber, so as to transport washing water from bottom to top. Because the bowl basket may need to be adjusted in height during use, or the bowl basket needs to be removed from the tank body in order to facilitate the placement of dishes on the bowl basket, a movable connection is required between the spray part and the water supply pipe.

For example, in the "Water Distribution Structure, Water Supply Pipe Structure and Dishwasher" disclosed in the Chinese utility model patent with patent number CN202121506706.7 (publication number CN215191361U), the water distribution structure is suitable for the water supply pipe, and the side wall of the water outlet end of the water supply pipe is provided with a water outlet. The water distribution structure includes: a ball storage tank, which is arranged on the water supply pipe and located above the water outlet, and the outer side of the ball storage tank is a closed structure; a water distribution ball is configured to be able to move between the ball storage tank and the water outlet, and can move from the position of the water outlet to the ball storage tank under the action of water pressure, and move from the ball storage tank to the water outlet when the water pressure at the water outlet drops, and close the water outlet under the action of water pressure. When the upper bowl basket in the dishwasher is taken out, the upper spray arm water pipe is detached from the water outlet, and the upper spray arm water pipe is separated from the water supply pipe. At this time, the water distribution ball moves toward the outside of the water outlet under the action of water pressure, and then can block the water outlet, thereby avoiding water spraying, and the dishwasher can operate normally.

From the above, it can be seen that after the upper bowl basket is raised, that is, when the upper spray piece is disconnected from the water supply pipe, the water outlet on the water supply pipe is blocked by the water distribution ball to reduce water flow loss. This is generally done at present. After the upper bowl basket is raised, whether the water outlet can be used for other purposes needs further study.

Summary of the invention

The first technical problem to be solved by the present invention is to provide a water flow system for a cleaning machine in which the water outlet on the water supply pipe can still discharge water when the spray part is disconnected from the water supply pipe in view of the current status of the prior art.

The second technical problem to be solved by the present invention is to provide a cleaning machine using the above-mentioned water flow system in view of the current status of the prior art.

The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a water flow system for a cleaning machine, comprising

a water supply pipe having a water outlet thereon;

A water pump mechanism, used for supplying water to the water supply pipe;

A spray assembly, used for spraying items in the cleaning machine;

The invention is characterized in that the water outlet has two working states: in the first working state, the water outlet is connected with the spray assembly and supplies water to it; in the second working state, the water outlet is disconnected from the spray assembly, and the water outlet is used as a nozzle to spray the items in the cleaning machine.

In the above scheme, the direction of the water outlet is inclined or horizontal, and the direction of the water outlet can be designed according to the position of the items to be washed.

In the above scheme, the spray assembly includes a water pipe for conveying water flow and a spray hole for spraying water in the water pipe. When the water inlet end of the water pipe is connected to the water outlet of the water supply pipe, the water outlet is in a first working state; when the water inlet end of the water pipe is disconnected from the water outlet of the water supply pipe, the water outlet is in a second working state.

The water pipe and the water outlet can be connected in different directions: when the water outlet is in the first working state, the water inlet end of the water pipe is connected to the water outlet of the water supply pipe in the vertical direction; or, the water inlet end of the water pipe is connected to the water outlet of the water supply pipe in the horizontal direction;

When the water outlet is in the second working state, the water inlet end of the water pipe is separated from the water outlet of the water supply pipe.

The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a cleaning machine, characterized in that it includes a box body and the above-mentioned water flow system, the box body has an inner cavity with an open top or side, the spray assembly and the water outlet are both arranged in the inner cavity of the box body, and a shelf is also provided in the box body. When the water outlet is in the first working state, the shelf is located on the water spray path of the spray assembly.

In order to increase the number of tableware that can be placed, a bowl rack is also provided in the box body. When the water outlet is in the second working state, the bowl rack is located on the water flow path of the water outlet, so that the items in the bowl rack can be partially washed.

In the above scheme, the direction of the water outlet is inclined or horizontal, and the direction of the water outlet can be designed according to the position of the items to be washed.

In order to expand the spraying range, a dividing rib is provided in the water outlet, thereby dividing the water outlet into a plurality of water outlet holes. Different water outlet holes clean different areas of the dish rack.

Preferably, at least two of the water outlet holes are oriented in different directions.

In order to arrange the shelf and the dish rack in a good manner in the box, the shelf has a first position located at the top of the dish rack and a second position moved away from the top of the dish rack. When the shelf is located at the first position, it is in a cleaning state, and when the shelf is located at the second position, it is in a non-cleaning state;

The spray assembly is installed on the shelf and can move synchronously with the shelf. When the shelf is in a cleaning state, the spray assembly is connected to the water outlet so that the water outlet is in a first working state; when the shelf is in a non-cleaning state, the spray assembly is disconnected from the water outlet so that the water outlet is in a second working state.

In the above scheme, the spray assembly includes a water pipe for conveying water flow and a spray hole for spraying water in the water pipe. The water pipe is installed on the shelf and can move synchronously with the shelf. When the shelf is in a cleaning state, the water pipe extends horizontally, and the water pipe and the water outlet are connected in the horizontal direction and fluidly connected; when the shelf is in a non-cleaning state, the water pipe extends vertically, and the water pipe is detached from the water outlet and the fluid is disconnected.

The shelf can have a variety of movable forms. Preferably, the shelf can switch between a cleaning state and a non-cleaning state by flipping relative to the dish rack. When in the non-cleaning state, the shelf is vertically stored at one side of the dish rack.

In order to enable the rack to switch between the cleaning state and the non-cleaning state, the washing machine further includes a connecting piece that can be located in the box body, the rack is connected to the connecting piece, the rack can be rotated to a horizontal state or a vertical state, and the rack can move up and down to one side of the dish rack or above the dish rack in the vertical state. In this way, when the rack moves, it will be constrained by the connecting piece, and its moving trajectory will be limited to a certain extent. In addition, when the shelf is switched from the first position to the second position, the shelf is first rotated upward to a vertical state, and then the shelf is moved downward until the shelf is located next to the bowl rack. When the shelf is switched from the second position to the first position, the shelf is first moved upward to the top of the bowl rack, and then the shelf is rotated downward to a horizontal state. It can be seen from the activity process of the shelf that the shelf of the present invention will not have the problem of component interference and jamming when switching between horizontal and vertical, and the activity process of the shelf can proceed smoothly. Moreover, the flipping form of the shelf of the present invention can make the size of the shelf larger, and even fully cover the top opening of the bowl rack, so that a large number of tableware can be placed. Moreover, when the shelf is in the first position, it can be close to the bowl rack, and the structure is compact in the vertical direction, and no vertical space is wasted.

The connecting piece can be a rope that partially ties the shelf and the bowl rack together, but does not affect the activity of the shelf. However, this will have a small constraint on the trajectory of the shelf when it moves. Therefore, preferably, the connecting piece is in the shape of a rod with an axis extending in the horizontal direction, and the shelf can rotate around the axis of the connecting piece to a horizontal state or a vertical state, and the shelf can move up and down relative to the connecting piece to the side of the bowl rack or above the bowl rack when in the vertical state. In this way, when the shelf rotates, the connecting piece can play a certain restraining role on it.

In the above scheme, the axis of the connecting member extends in the left-right direction, and the shelf is flipped forward and backward; or, the axis of the connecting member extends in the front-back direction, and the shelf is flipped left-right.

In order to guide the vertical movement trajectory of the shelf, the cleaning machine also includes a guide rail that can be located in the box body, one end of the connecting piece extends into the guide rail, and when the shelf is in a vertical state, the guide rail extends vertically and slidably cooperates with the connecting piece to play a guiding role.

In the above scheme, the guide rail is arranged on the shelf, and when the shelf is in the first position, the guide rail extends horizontally, and the connecting member is relatively fixedly mounted on the box body or on the bowl rack.

In the above solution, the axis of the connecting member extends in the left-right direction, and when the shelf is in the first position, the guide rail extends in the front-back direction. In this way, the shelf is flipped forward and backward, which is convenient for users to operate compared to flipping left and right.

Preferably, when the shelf is in the first position, the connecting piece is adjacent to the rear end of the guide rail, and when the shelf is in the second position, the shelf and the spray assembly are located between the bowl rack and the rear wall of the inner cavity. Flipping backwards is more ergonomic and easier to operate.

In the scheme of flipping the shelf backward, the structure of the guide rail is as follows: the guide rail extends straight, and the connecting piece is located obliquely below the water outlet of the water supply pipe.

During the rack flipping process, interference is likely to occur between the water pipe and the water supply pipe, affecting the flipping of the rack. Therefore, when the rack is in the first position, the water pipe can move relative to the rack in the front-rear direction.

Preferably, a positioning member is provided on the outer peripheral wall of the water pipe, the positioning member has a positioning groove extending along the length direction of the water pipe, and a positioning portion constrained in the positioning groove is provided on the shelf, and relative displacement can occur between the positioning groove and the positioning portion, and the positioning portion is always located in the positioning groove;

Alternatively, a positioning member is provided on the shelf, the positioning member has a positioning groove extending along the length direction of the water pipe, a positioning portion constrained in the positioning groove is provided on the outer peripheral wall of the water pipe, relative displacement can occur between the positioning groove and the positioning portion, and the positioning portion is always located in the positioning groove. The cooperation between the positioning member and the positioning portion enables the water pipe to be always connected to the shelf, and the water pipe can move relative to the shelf along its length direction. The shelf is a hollow structure composed of frame bars, and the positioning portion is the frame bar.

In order to make the water pipe move forward and backward relative to the water supply pipe when the water pipe interferes with the water supply pipe, and eliminate the interference between the two, a convex portion is provided on the front side wall of the water supply pipe, and the water outlet is provided on the convex portion, and the wall surface of the convex portion is a first inclined surface that tilts backward from top to bottom, and the wall surface of the water inlet end of the water pipe is a second inclined surface that can be inclined with the first inclined surface. When the water pipe flips downward from the water outlet, the water pipe will move forward due to the squeezing of the first inclined surface. When the water pipe is in a vertical state, under the action of gravity, the positioning portion and the top wall of the positioning groove (the rear end of the water pipe when it is in a horizontal state) are against each other; when the water pipe flips upward toward the water outlet, the water pipe will move forward due to the squeezing of the first inclined surface, so that the water inlet end of the water pipe and the water outlet are smoothly docked. The angle between the first inclined surface and the plumb plane is about 10°, so that when the water pipe flips, the interference amount of tan10° is reduced, achieving the effect of smooth flipping.

In order to guide the water pipe and facilitate the alignment of the water inlet end of the water pipe with the water outlet, a vertically extending slide is provided on the water supply pipe, and the water outlet is located in the slide or at the end of the slide. The water inlet end of the water pipe can slide along the slide to guide the water pipe, so as to improve the accuracy of the connection between the water pipe and the water outlet.

Preferably, the slide is in a trumpet shape that decreases in diameter as the water pipe moves to the water outlet, so that the water pipe can smoothly enter the slide. When the water pipe corresponds to the water outlet, the water pipe is positioned relative to the slide in the left and right direction.

Preferably, two guide blocks are symmetrically provided on the outer peripheral wall of the water inlet end of the water pipe, and a guide groove is provided on the side wall of the slide along its length direction, and the guide block slides along the guide groove of a guide strip; along the direction of the water pipe moving to the water outlet, the width of the guide groove gradually decreases, so that the guide block can enter the guide groove easily, and when the water pipe corresponds to the water outlet, the guide block is positioned relative to the guide groove in the front-to-back direction.

In order to improve the spraying effect on the dishes in the dish rack, a second spraying member is provided in the box body, and the spraying port of the second spraying member faces the dish rack.

Preferably, the second spray component is located below the bowl rack, and a shelf is provided at the lower part of the water supply pipe, which is located above the second spray component. When the rack is in the second position, the bottom of the water pipe is placed on the shelf to prevent the water pipe from being in a vertical state when the shelf is in the second position, thereby preventing interference with the rotation of the second spray component.

Preferably, a first limiting portion is provided on the shelf and a second limiting portion is provided on the bowl rack. When the shelf is in the second position, the first limiting portion presses against the second limiting portion, and the shelf is located above the second spray member to prevent interference with the rotation of the second spray member when the shelf is in the second position.

Compared with the prior art, the advantages of the present invention are as follows: when the spray assembly is fluidly connected to the water outlet, the water flowing out of the water outlet enters the spray assembly, and the water sprayed by the spray assembly cleans the items in the cleaning machine; when the spray assembly is fluidly disconnected from the water outlet, the water outlet can still supply water to flow out, and at this time, it is used as a nozzle to spray the items in the cleaning machine. Because the direction of the water outlet is fixed after the production is completed, the items in specific parts can be locally enhanced washed; compared with the existing situation where the spray assembly is fluidly disconnected from the water outlet and the water outlet does not discharge water, the water outlet of the present invention has multiple uses, and can not only supply water to the spray assembly, but also be used as a nozzle for local enhanced washing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of Embodiment 1 of the present invention (the shelf is in the first position);

FIG2 is a schematic diagram of a partial structure of FIG1 ;

FIG3 is an enlarged view of point A in FIG2 ;

FIG4 is an enlarged view of point B in FIG2 ;

FIG5 is an enlarged view of point C in FIG2;

FIG6 is a cross-sectional view of FIG5;

FIG7 is a cross-sectional view of another structural form of a connecting member;

FIG8 is a cross-sectional view of FIG2;

FIG9 is an enlarged view of point D in FIG8 ;

FIG10 is a schematic structural diagram of the shelf of FIG2 ;

FIG11 is a schematic diagram of a partial structure of the water supply pipe of FIG2 ;

FIG12 is a schematic diagram of the structure of FIG11 in another direction;

FIG13 is a schematic structural diagram of the water pipe of FIG2 ;

FIG14 is a schematic diagram of the positional relationship between the bowl rack assembly and the box body of FIG1 ;

FIG15 is a schematic diagram of the structure of Embodiment 1 of the present invention (the shelf is in the second position);

FIG16 is a schematic diagram of a partial structure of FIG15 ;

FIG17 is a cross-sectional view of FIG16;

FIG18 is an enlarged view of point E in FIG17 ;

FIG19 is a schematic structural diagram of the bowl rack in FIG2 ;

FIG20 is a schematic diagram of the structure of Embodiment 2 of the present invention (the shelf is in the first position);

FIG21 is a schematic structural diagram of the shelf in FIG20 flipping upward from the first position;

FIG22 is a schematic structural diagram of the shelf moving from FIG21 to a second position;

FIG23 is a schematic diagram of the structure of Embodiment 2 of the present invention (the shelf is in the second position);

FIG24 is a schematic diagram of the structure of Embodiment 3 of the present invention (the shelf is in the first position);

FIG. 25 is a schematic diagram of the structure of Embodiment 3 of the present invention (the shelf is in the second position).

DETAILED DESCRIPTION

The present invention is further described in detail below with reference to the accompanying drawings.

Example 1

As shown in FIGS. 1 to 19 , the cleaning machine of this preferred embodiment is used for cleaning tableware and/or fruits and vegetables, wherein the tableware includes bowls, plates, pots and the like.

The cleaning machine comprises a housing 1, a dish rack assembly and a water flow system.

The box body 1 has an inner cavity 10 which is open at the top or the side. In this embodiment, the inner cavity 10 is open at the top, and a part of the inner cavity 10 of the box body 1 is used as a storage space.

The bowl rack assembly is arranged in the inner cavity 10 of the box body 1, and the bowl rack assembly includes a rack 2 and a bowl rack 3. The bowl rack 3 can be placed on the bottom wall of the inner cavity 10, or can be removed from the inner cavity 10. The rack 2 and the bowl rack 3 of this embodiment can not only place tableware such as bowls and plates, but also pots, fruits and vegetables, etc.

The shelf 2 can be switched between a first position and a second position. As shown in FIG2 , when the shelf 2 is in the first position, the shelf 2 is horizontally located above the bowl rack 3. At this time, tableware can be placed on both the shelf 2 and the bowl rack 3. As shown in FIG16 , when the shelf 2 is in the second position, the shelf 2 is vertically stored in the storage space. The storage space is located on one side of the bowl rack 3. The shelf 2 does not need to be taken out of the box 1 when not in use, and there is no need to prepare space outside the box 1 for placing the shelf 2 and the spray assembly.

The shelf 2 can be manually moved to the first position or the second position, and there is no connection between the shelf 2 and the dish rack 3 or the box 1. In this embodiment, the washing machine also includes a connecting member 31 that can be located in the box 1, and the shelf 2 is connected to the connecting member 31. The connecting member 31 is in the shape of a rod with an axis extending in the horizontal direction, and the shelf 2 can rotate around the axis of the connecting member 31 to a horizontal state or a vertical state, and the shelf 2 can move up and down relative to the connecting member 31 to one side of the dish rack 3 or above the dish rack 3 in the vertical state. That is, the shelf 2 can rotate to a horizontal state or a vertical state with the connecting member 31 as the axis, and the shelf 2 can move up and down relative to the connecting member 31 to one side of the dish rack 3 or above the dish rack 3 in the vertical state.

When the shelf 2 is switched from the first position to the second position, the shelf 2 is first rotated upward to a vertical state, and then the shelf 2 is moved downward until the shelf 2 is located beside the bowl rack 3. When the shelf 2 is switched from the second position to the first position, the shelf 2 is first moved upward to the top of the bowl rack 3, and then the shelf 2 is rotated downward to a horizontal state. It can be seen from the activity process of the shelf 2 that the shelf 2 will not have the problem of interference and stagnation of parts when switching between horizontal and vertical. The activity process of the shelf 2 can be carried out smoothly, and the top of the inner cavity 10 is open, so that there is enough space for the shelf 2 to turn up and down.

In addition, the flipping form of the shelf 2 of the present invention can make the size of the shelf 2 larger, and can even cover the top opening of the bowl rack 3, so that a large number of tableware can be placed. In this embodiment, when the shelf 2 is in the first position, the vertical projection of the shelf 2 falls within the vertical projection of the bowl rack 3, and the vertical projection area of the shelf 2 accounts for 90%-98% of the vertical projection area of the bowl rack 3. The area of the shelf 2 is large, and a large number of tableware can be placed.

As shown in Figures 2, 5 and 6, the axis of the connecting member 31 extends in the left-right direction, and the shelf 2 flips forward and backward; of course, it is also possible that the axis of the connecting member 31 extends in the front-back direction, and the shelf 2 flips left and right, but it is not as convenient as flipping forward and backward.

The cleaning machine also includes a guide rail 24 that can be located in the box body 1, and one end of the connecting member 31 extends into the guide rail 24. When the shelf 2 is in a vertical state, the guide rail 24 extends vertically and slidably cooperates with the connecting member 31 to guide the vertical movement of the shelf 2.

In this embodiment, the guide rail 24 is arranged on the shelf 2, and an annular frame bar is arranged at the bottom of the shelf 2. The area inside the frame bar is the guide rail 24, and the structure is simple.

A fixing member 35 is fixedly mounted on the bowl rack 3 , and the connecting member 31 is fixedly mounted on the fixing member 35 , so that the connecting member 31 is relatively fixedly mounted on the top of the bowl rack 3 . Of course, the connecting member 31 can also be fixedly mounted on the side wall 1 of the box body 1 .

In addition, a circle of embedding grooves 310 for embedding the guide rail 24 is provided on the peripheral wall of the connecting member 31 to prevent the guide rail 24 from being separated from the connecting member 31. As shown in FIG7, the cross section of the connecting member 31 can be circular, or, as shown in FIGS. 5 and 6, the connecting member 31 includes a shaft 311 and a roller 312 rotatably sleeved on the shaft, and the cross section of the roller 312 is elliptical.

Of course, it is also feasible to arrange the guide rail 24 on the dish rack 3 . In this case, the guide rail 24 extends vertically and the connecting member 31 is installed on the shelf 2 .

When the shelf 2 is in the first position, the guide rail 24 extends in the front-to-back direction, and the shelf 2 is supported on the bowl rack 3 to improve the stability of the shelf. In this embodiment, a support portion 33 is provided on the top of the bowl rack 3. When the shelf 2 is in the first position, the shelf 2 is supported on the support portion 33, and the support portion 33 is inclined from bottom to top toward the central part of the bowl rack 3. When the shelf 2 switches from the second position to the first position, the support portion 33 guides the guide rail 24, so that the shelf 2 horizontally covers the top of the bowl rack 3. In addition, the support portion 33 is U-shaped, and both ends are installed on the bowl rack 3. The support portion 33 is used as a handle.

This embodiment adopts the form of the shelf 2 flipping backward: when the shelf 2 is in the first position, the connecting member 31 is adjacent to the rear end of the guide rail 24, so that the shelf 2 flips backward.

When the shelf 2 is in the second position, the shelf 2 is located between the bowl rack 3 and the rear wall of the inner cavity 10, and flipped backwards, which is more in line with ergonomics and easier to operate; and in this state, the connecting member 31 is lower than the highest point of the shelf 2, so that when the shelf 2 is in the first position, there is enough space above it to place items; in this state, the connecting member 31 is located at the upper part of the guide rail 24 to prevent the upper part of the shelf 2 from shaking.

The opposite sides (left and right sides) of the shelf 2 are provided with guide rails 24, and correspondingly, there are two connecting members 31, so that the shelf 2 is subjected to uniform force when moving. The shelf 2 and the guide rails 24 together form a U-shaped structure, and the ratio of the length l to the height h of the U-shaped structure is between 0.13-0.16. The U-shaped structure is relatively thin and occupies little space in the thickness direction.

The cross section of the dish rack 3 is square, and the connecting piece 31 is disposed near the corner of the dish rack 3 so as to facilitate the shelf 2 to flip to the side of the dish rack 3 .

As shown in Figure 14, the horizontal plane where the center line of the connecting member 31 is located is called the horizontal dividing line a, the plumb plane where the center line of the connecting member 31 is located is called the longitudinal dividing line b, the horizontal distance between the longitudinal dividing line b and the rear wall of the inner cavity 10 is called L1, the horizontal distance between the longitudinal dividing line b and the rearmost part of the shelf 2 when it is in the first position is called L2, and the vertical distance between the horizontal dividing line a and the highest point of the shelf 2 when it is in the first position is called L4, L1≥L4, L1≥L2, so that the shelf 2 has sufficient storage space and installation clearance before and after flipping.

L4/L2=(0.8-1.2), so that when the shelf 2 is in the first position, there is a large enough area for placing articles.

As shown in FIG10 , a partially upwardly arched retaining rib 27 can be provided at the corner of the shelf 2, and a limiting opening 271 for limiting tableware is formed between the retaining rib 27 and the shelf 2, and some tableware, such as the edge of the pot of a pot, can be buckled in the limiting opening 271, and the retaining rib 27 is against the outer peripheral wall of the pot. In this case, as shown in FIG14 , the straight-line distance between the center line of the connecting member 31 and the rearmost part of the shelf 2 in the first position is called L3, and L1 ≥ L3, so as to prevent the retaining rib 27 from interfering with the box 1 when the shelf 2 is turned over.

When the height H of the inner cavity 10 of the housing 1 is fixed, in order to improve the space utilization of the inner cavity 10 of the housing 1 and realize a large number of washings, the height of the dish rack 3 is L5, and L4/L5≤0.25.

The height of the inner cavity 10 is H, 50%≤L5/H≤80%, leaving space for the shelf 2 and the items placed thereon; 60%≤(L4+L5)/H≤90%, thus reserving space above the shelf 2 when the shelf 2 is in the first position, which can accommodate some tableware or fruits and vegetables with a height exceeding L4.

In this embodiment, as shown in Figure 19, the top of the bowl rack 3 is open to form a first opening 301, and the side of the bowl rack 3 is open to form a second opening 302. Of course, the side of the bowl rack 3 may not be provided with the second opening 302. When the shelf 2 is in the first position, the shelf 2 extends horizontally and covers the first opening 301. When the shelf 2 is in the second position, the shelf 2 extends vertically and covers the second opening 302.

In this description, the bowl rack assembly of this embodiment can be used not only in a washing machine, but also in other household appliances, such as a disinfection cabinet.

As shown in Figs. 8 and 9, the water flow system includes a water supply pipe 4 and a spray assembly. The water supply pipe 4 is provided with a water outlet 41. In this embodiment, the water supply pipe 4 is entirely located in the inner cavity 10 of the housing 1 and at the rear thereof. The water supply pipe 4 may also be partially located outside the housing 1, but the water outlet 41 is located in the inner cavity 10 of the housing 1. The water flow system also includes a water pumping mechanism, which is used to supply water to the water supply pipe 4. The water pumping mechanism may adopt an existing structure.

The spray assembly is connected to the shelf 2 and can move with the shelf 2. When the shelf 2 is in the first position, the spray assembly is fluidly connected to the water outlet 41. When the shelf 2 is in the second position, the spray assembly is fluidly disconnected from the water outlet 41.

The spray assembly includes a water pipe 22 for conveying water flow and a spray hole for spraying water in the water pipe 22, and the spray hole is arranged on the water pipe 22; or, the spray assembly also includes a first spray piece 21 fluidly connected to the water pipe 22, and the spray hole is arranged on the first spray piece 21.

The first spray member 21 of the present embodiment is strip-shaped and extends in the same direction as the water pipe 22. As shown in FIG. 17 , a bypass opening 301 for avoiding the spray assembly is provided on the bowl rack 3. When the shelf 2 is in the second position, the spray assembly passes downward through the bypass opening 301. The shelf 2 and the guide rail 24 form a U-shaped structure as a whole. The spray assembly is located in the U-shaped area of the U-shaped structure, and the bowl rack 3 is partially surrounded by the U-shaped area.

The spray holes of this embodiment are toward the shelf 2 to clean the articles on the shelf 2. Of course, the spray holes may also be toward the bowl rack 3, or some of the spray holes may be toward the shelf 2 and some of the spray holes may be toward the bowl rack 3.

The water pipe 22 is installed on the shelf 2 , that is, the shelf 2 also serves as a mounting member for mounting the water pipe 22 , and the extending direction of the mounting member is consistent with the extending direction of the water pipe 22 .

As shown in Figures 2 and 8, when the shelf 2 is in the first position, the water pipe 22 extends horizontally, and the water pipe 22 is connected to the water outlet 41 and fluidly connected; as shown in Figures 16 and 17, when the shelf 2 is in the second position, the water pipe 22 extends vertically, and the water pipe 22 is disengaged from the water outlet 41 and fluidly disconnected, and the shelf 2 and the spray component of the water system are both located between the bowl rack 3 and the rear wall of the inner cavity 10, that is, the shelf 2 and the spray component are both located at the rear of the inner cavity 10 and the rear side of the bowl rack 3, and the spray component is located on the side of the shelf 2 facing the bowl rack 3.

In this embodiment, the guide rail 24 extends straight, and the connecting member 31 is located obliquely below the water outlet 41 of the water supply pipe 4. During the flipping process of the shelf 2, interference is easily generated between the water pipe 22 and the water supply pipe 4, affecting the flipping of the shelf 2. Therefore, in order to solve this problem, when the shelf 2 is in the first position, the water pipe 22 can move relative to the shelf 2 in the front-rear direction.

As shown in FIG3 , a positioning member 221 is provided on the outer peripheral wall of the water pipe 22. The positioning member 221 has a positioning groove 222 extending along the length direction of the water pipe 22. The shelf 2 is provided with a positioning portion 25 constrained in the positioning groove 222. The positioning groove 222 and the positioning portion 25 can generate relative displacement, and the positioning portion 25 is always located in the positioning groove 222. The cooperation between the positioning member 221 and the positioning portion 25 enables the water pipe 22 to be always connected to the shelf 2, and the water pipe 22 can move relative to the shelf 2 along its length direction. The shelf 2 is a hollow structure composed of frame bars, and the positioning portion 25 is the frame bar.

Of course, it is also possible that a positioning piece 221 is provided on the shelf 2, and the positioning piece 221 has a positioning groove 222 extending along the length direction of the water pipe 22, and a positioning portion 25 constrained in the positioning groove 222 is provided on the outer peripheral wall of the water pipe 22, and relative displacement can be generated between the positioning groove 222 and the positioning portion 25, and the positioning portion 25 is always located in the positioning groove 222.

In addition, as shown in Fig. 9, a convex portion 42 is provided on the front side wall of the water supply pipe 4, and the water outlet 41 is provided on the convex portion 42, and the wall surface of the convex portion 42 is a first inclined surface 421 inclined backward from top to bottom, and the wall surface of the water inlet end of the water pipe 22 is a second inclined surface 223 that can be inclinedly matched with the first inclined surface 421. When the water pipe 22 turns downward from the water outlet 41, the water pipe 22 will move forward due to the squeezing of the first inclined surface 421, and when the water pipe 22 is in a vertical state, under the action of gravity, the positioning portion 25 and the top wall of the positioning groove 222 (the rear end of the water pipe 22 when it is in a horizontal state) are abutted; when the water pipe 22 turns upward toward the water outlet 41, the water pipe 22 will move forward due to the squeezing of the first inclined surface 421, so that the water inlet end of the water pipe 22 and the water outlet 41 are smoothly docked. The included angle between the first inclined surface 421 and the vertical plane is about 10°, so that when the water pipe 22 is turned over, the interference amount of tan10° is reduced, thereby achieving a smooth turning effect.

Regarding the connection between the shelf 2 and the water pipe 22, in the present embodiment, the positioning member 221 is arranged at a position close to the water outlet end of the water pipe 22, so that when the shelf 2 is in the first position, the water inlet end of the water pipe 22 is not positioned and is prone to sag under the action of gravity, thereby affecting the alignment and connection between the water inlet end of the water pipe 22 and the water outlet 41. Therefore, as shown in FIG. 4, the shelf 2 has a resting portion 20, and when the water pipe 22 corresponds to the water outlet 41, the portion of the water pipe 22 adjacent to the water inlet end is rested on the resting portion 20, so that the water pipe 22 is positioned in the up and down directions.

A vertically extending slide 43 is provided on the water supply pipe 4, and the water outlet 41 is located in the slide 43 or at the end of the slide 43. The water inlet end of the water pipe 22 can slide along the slide 43 to guide the water pipe 22 to improve the accuracy of the connection between the water pipe 22 and the water outlet 41.

The slide 43 is in the shape of a trumpet that decreases in diameter as the water pipe 22 moves to the water outlet 41. In this embodiment, the slide 43 becomes smaller in size from bottom to top in the left and right direction, which facilitates the water pipe 22 to smoothly enter the slide 43. When the water pipe 22 corresponds to the water outlet 41, the water pipe 22 is positioned relative to the slide 43 in the left and right direction.

In this embodiment, as shown in FIGS. 11 to 13 , two vertically extending guide bars 44 are symmetrically provided on the left and right sides of the water outlet 41, and the area between the two guide bars 44 is the slideway 43, and each guide bar 44 is inclined toward the water outlet 41 along the direction from the water pipe 22 to the water outlet 41, so as to form a bell-shaped slideway 43. Each guide bar 44 includes a downstream section 441 and an upstream section 442 which are sequentially arranged and connected along the direction from the water pipe 22 to the water outlet 41, and the inclination angle of the downstream section 441 is greater than the inclination angle of the upstream section 442, so as to further increase the size of the lower part of the slideway 43 in the left-right direction, so as to facilitate the water pipe 22 to enter the slideway 43.

Two guide blocks 224 are symmetrically provided on the outer peripheral wall of the water inlet end of the water pipe 22, and a guide groove 443 is provided on the side wall of the slide 43 (i.e., the guide strip 44) along its length direction, and the guide block 224 slides along the guide groove 443 of a guide strip 44; along the direction of the water pipe 22 moving to the water outlet 41, the width of the guide groove 443 gradually decreases, so that the guide block 224 can enter the guide groove 443 easily, and when the water pipe 22 corresponds to the water outlet 41, the guide block 224 is positioned relative to the guide groove 443 in the front-to-back direction.

The guide block 224 of this embodiment is V-shaped, including a first portion 2241 and a second portion 2242 . The angle between the first portion 2241 and the second portion 2242 is an obtuse angle, which has a good positioning effect with the guide groove 443 .

As shown in FIGS. 17 and 18 , a second spray member 32 is provided in the housing 1 . The second spray member 32 may adopt an existing spray arm structure and may rotate around its axis in the housing 1 . The nozzle of the second spray member 32 faces the bowl rack 3 .

The second spray component 32 is located below the bowl rack 3, and a shelf 45 is provided at the lower part of the water supply pipe 4. The shelf 45 is located above the second spray component 32. When the rack 2 is in the second position, the bottom of the water pipe 22 is placed on the shelf 45 to prevent the water pipe 22 from being in a vertical state when the rack 2 is in the second position, thereby preventing interference with the rotation of the second spray component 32.

The shelf 2 is provided with a first limiting portion 26, and the bowl rack 3 is provided with a second limiting portion 34. When the shelf 2 is in the second position, the first limiting portion 26 presses against the second limiting portion 34, and the shelf 2 is located above the second spraying member 32, so as to prevent the shelf 2 from interfering with the rotation of the second spraying member 32 when in the second position. The bowl rack 3 is a hollow structure composed of a plurality of ribs, and the second limiting portion 34 is one of the ribs of the bowl rack 3.

Regarding the water outlet 41 , as shown in FIGS. 11 and 12 , the orientation of the water outlet 41 can be inclined or horizontal. In the present embodiment, the orientation of the water outlet 41 is inclined, and the angle between the water outlet 41 and the horizontal plane is about 25°.

When the shelf 2 is in the second position, the water outlet 41 can be in a closed state or an open state. The closed state means that water cannot flow out of the water outlet 41 , and the open state means that water can flow out of the water outlet 41 .

In other words, the water outlet 41 has two working states: in the first working state, the water inlet end of the water pipe 22 is connected to the water outlet 41 of the water supply pipe 4, that is, the water outlet 41 is connected to the spray assembly and supplies water to it, and the water sprayed by the spray assembly cleans the items in the cleaning machine; in the second working state, the water inlet end of the water pipe 22 is disconnected from the water outlet 41 of the water supply pipe 4, that is, the water outlet 41 is disconnected from the spray assembly, and the water outlet 41 acts as a nozzle to spray the items in the cleaning machine, that is, the water outlet 41 can still supply water to flow out, and at this time, it acts as a nozzle to spray the items in the cleaning machine. Because the direction of the water outlet 41 is fixed after production, items in specific parts can be locally enhanced washed.

The water inlet end of the water pipe 22 of this embodiment is connected to the water outlet 41 of the water supply pipe 4 in the horizontal direction, and the water inlet end of the water pipe 22 can also be connected to the water outlet 41 of the water supply pipe 4 in the vertical direction.

Because the spray hole of the spray assembly of this embodiment is toward the rack 2, when the water outlet 41 is in the first working state, the rack 2 is located on the water spray path of the spray assembly; and when the water outlet 41 is in the second working state, the bowl rack 3 is located on the water flow path of the water outlet 41, the water outlet 41 sprays from top to bottom, and the second spray part 32 sprays from bottom to top, and the cooperation of the two has a good cleaning effect on the tableware in the bowl rack 3.

When the shelf 2 is in the first position, it is in a cleaning state, and the spray assembly is connected to the water outlet 41 so that the water outlet 41 is in a first working state; when the shelf 2 is in the second position, it is in a non-cleaning state, and the spray assembly is disconnected from the water outlet 41 so that the water outlet 41 is in a second working state.

The water outlet 41 is provided with a dividing rib 411, so as to divide the water outlet 41 into a plurality of water outlet holes 412. Different water outlet holes 412 clean different areas of the dish rack 3, and at least two of the water outlet holes 412 face different directions.

In this description, the spray assembly is not the only component that can spray water on the shelf 2, and the water outlet 41 is not the only component that can spray water on the bowl rack 3. A variety of spray structures can be used for cleaning.

It can be seen from the above that no matter the shelf 2 is in the first position or the second position, the shelf 2 and the spray assembly are both located in the inner cavity 10 of the box body 1 .

Example 2

The difference between this embodiment and the first embodiment is that the structure of the guide rail 24 is different. For other details, please refer to the first embodiment.

As shown in Figures 20 to 23, the height of the connecting member 31 is consistent with the height of the water outlet 41, and the guide rail 24 includes a straight section 241 extending straight and an inclined section 242 extending obliquely. When the shelf 2 is in the first position, the front end of the inclined section 242 is connected to the rear end of the straight section 241, the straight section 241 extends in the front-to-back direction, the inclined section 242 is inclined upward from front to back, and the connecting member 31 extends into the inclined section 242. With this structural form of the guide rail 24, when the shelf 2 is turned over, there will be no interference between the water pipe 22 and the water supply pipe 4.

Example 3

The difference between this embodiment and embodiment 1 is that:

1. This embodiment adopts the form of the shelf 2 flipping forward:

When the shelf 2 is in the first position, the connector 31 is adjacent to the front end of the guide rail 24. When the shelf 2 is in the second position, the shelf 2 and the spray assembly are both located between the bowl rack 3 and the front wall of the inner cavity 10, that is, the shelf 2 and the spray assembly are both located in the front of the inner cavity 10, in front of the bowl rack 3. In this case, the shelf 2 flips forward, because the water supply pipe 4 is generally arranged at the rear of the box body 1, flipping the shelf 2 to the front side will not make the rear of the box body 1 too crowded; in addition, the shelf 2 flips to the front side, which will not affect the user's vision and tableware placement experience. In this solution, the guide rail 24 extends straight, and the connector 31 is located obliquely below the water outlet 41 of the water supply pipe 4. When the shelf 2 flips forward, there will be no problem of interference between the water pipe 22 and the water supply pipe 4.

2. The shelf 2 of this embodiment is not supported on the support portion 33, but is supported on the bowl rack 3 by the guide rail 24 being supported on the top of the bowl rack 3 when the shelf 2 is in the first position. The guide rail 24 extends in the front-to-back direction and has a large contact area with the bowl rack 3, so that the shelf 2 has good stability.

The "horizontal" mentioned above includes that the component extends straight in the horizontal direction, that is, the two ends of the component are on the same horizontal plane, but is not limited to this direction, as long as the overall extension direction of the component is in the horizontal direction, such as the component extends along the front and back or left and right directions as a whole, but the two ends of the component are not on the same horizontal plane.

Similarly, "vertical" includes components extending straight in the vertical direction, that is, the two ends of the component are on the same plumb plane, but is not limited to this direction, as long as the overall extension direction of the component is in the vertical direction, for example, the component extends in the up and down direction as a whole, but the two ends of the component are not on the same plumb plane.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "horizontal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

The "fluid connection" referred to in the present invention refers to the spatial position relationship between two components or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or/and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims (29)

1. A water flow system for a washer, comprising

A water supply pipe (4) provided with a water outlet (41);

The water pumping mechanism is used for supplying water to the water supply pipe (4);

The spraying assembly is used for spraying the articles in the cleaning machine;

The utility model is characterized in that the water outlet (41) has two working states: in a first working state, the water outlet (41) is communicated with the spray assembly and is used for conveying water; in a second working state, the water outlet (41) is disconnected with the spraying assembly, and the water outlet (41) is used as a nozzle to spray articles in the cleaning machine.

2. A water flow system according to claim 1, characterized in that the water outlet (41) is oriented obliquely or horizontally.

3. The water flow system according to claim 1, characterized in that the spray assembly comprises a water pipe (22) for conveying water flow and a spray hole for spraying out water in the water pipe (22), the water outlet (41) being in the first working state when the water inlet end of the water pipe (22) is in abutting communication with the water outlet (41) of the water supply pipe (4); when the water inlet end of the water passing pipe (22) is separated from the water outlet (41) of the water supply pipe (4), the water outlet (41) is in a second working state.

4. A water flow system according to claim 3, characterized in that in the first operating condition of the water outlet (41), the water inlet end of the water pipe (22) is in vertical abutting communication with the water outlet (41) of the water supply pipe (4); or the water inlet end of the water passing pipe (22) is in butt joint communication with the water outlet (41) of the water supply pipe (4) in the horizontal direction;

and when the water outlet (41) is in the second working state, the water inlet end of the water passing pipe (22) is separated from the water outlet (41) of the water supply pipe (4).

5. The utility model provides a cleaning machine, its characterized in that includes box (1) and claim 1 the rivers system, box (1) have top or lateral part open inner chamber (10), spray subassembly and delivery port (41) all locate in inner chamber (10) of box (1), still be equipped with shelf (2) in box (1), under delivery port (41) are in first operating condition, shelf (2) are located the water spray path of spraying the subassembly.

6. The cleaning machine according to claim 5, characterized in that the tank (1) is further provided with a bowl rack (3), and in the second operating state of the water outlet (41), the bowl rack (3) is located in the water flow path of the water outlet (41).

7. The machine according to claim 6, characterized in that the water outlet (41) is oriented obliquely downwards or horizontally.

8. The cleaning machine according to claim 6, wherein a separation rib (411) is provided in the water outlet (41) to separate the water outlet (41) into a plurality of water outlet holes (412).

9. The machine according to claim 8, characterized in that at least two of said water outlet holes (412) are oriented differently.

10. The washing machine according to any one of claims 6 to 9, characterized in that the shelf (2) has a first position above the bowl rack (3) and a second position removed from above the bowl rack (3), in which the shelf (2) is in a washing condition and in which the shelf (2) is in a non-washing condition;

The spraying assembly is arranged on the shelf (2) and can synchronously move along with the shelf (2), and when the shelf (2) is in a cleaning state, the spraying assembly is communicated with the water outlet (41) to enable the water outlet (41) to be in a first working state; when the shelf (2) is in a non-cleaning state, the spray assembly is disconnected from the water outlet (41) so that the water outlet (41) is in a second working state.

11. The cleaning machine according to claim 10, characterized in that the spray assembly comprises a water pipe (22) for conveying water flow and spray holes for spraying water in the water pipe (22), the water pipe (22) being mounted on the shelf (2) and being movable synchronously with the shelf (2), the water pipe (22) extending horizontally when the shelf (2) is in a cleaning state, and the water pipe (22) being in butt-joint and fluid communication with the water outlet (41) in a horizontal direction; when the shelf (2) is in a non-cleaning state, the water passing pipe (22) extends vertically, and the water passing pipe (22) is separated from the water outlet (41) and is disconnected in a fluid manner.

12. The washing machine according to claim 11, characterized in that the shelf (2) is switched between a washing state and a non-washing state by being turned over relative to the bowl rack (3), the shelf (2) being vertically received on one side of the bowl rack (3) when in the non-washing state.

13. The cleaning machine of claim 12, wherein: still including connecting piece (31) that can be located box (1), shelf (2) link to each other with this connecting piece (31), shelf (2) can rotate to horizontal state or vertical state, just shelf (2) can follow the side or bowl frame (3) top of upper and lower direction removal to bowl frame (3) under being in vertical state.

14. The cleaning machine of claim 13, wherein: the connecting piece (31) is in a rod shape with an axis extending along the horizontal direction, the shelf (2) can rotate to a horizontal state or a vertical state around the axis of the connecting piece (31), and the shelf (2) can move up and down to one side of the bowl rack (3) or above the bowl rack (3) relative to the connecting piece (31) in the vertical state.

15. The cleaning machine of claim 14, wherein: the axis of the connecting piece (31) extends along the left-right direction; or the axis of the connecting member (31) extends in the front-rear direction.

16. The cleaning machine of claim 15, wherein: the shelf is characterized by further comprising a guide rail (24) which can be positioned in the box body (1), one end of the connecting piece (31) stretches into the guide rail (24), and when the shelf (2) is in a vertical state, the guide rail (24) extends vertically and is in sliding fit with the connecting piece (31).

17. The cleaning machine of claim 16, wherein: the guide rail (24) is arranged on the shelf (2), when the shelf (2) is positioned at the first position, the guide rail (24) horizontally extends, and the connecting piece (31) is relatively fixedly arranged on the box body (1) or the bowl rack (3).

18. The cleaning machine of claim 17, wherein: the axis of the connecting piece (31) extends along the left-right direction, and the guide rail (24) extends along the front-rear direction when the shelf (2) is at the first position.

19. The cleaning machine of claim 18, wherein: when the shelf (2) is in the first position, the connecting piece (31) is adjacent to the rear end of the guide rail (24), and when the shelf (2) is in the second position, the shelf (2) and the spraying assembly are both positioned between the bowl rack (3) and the rear wall surface of the inner cavity (10).

20. The cleaning machine of claim 19, wherein: the guide rail (24) extends straight, and the connecting piece (31) is positioned obliquely below the water outlet (41) of the water supply pipe (4).

21. The cleaning machine of claim 20, wherein: the water passing pipe (22) can move in the front-rear direction relative to the shelf (2) when the shelf (2) is in the first position.

22. The cleaning machine of claim 21, wherein: a positioning piece (221) is arranged on the peripheral wall of the water passing pipe (22), the positioning piece (221) is provided with a positioning groove (222) extending along the length direction of the water passing pipe (22), the shelf (2) is provided with a positioning part (25) restrained in the positioning groove (222), relative displacement can be generated between the positioning groove (222) and the positioning part (25), and the positioning part (25) is always positioned in the positioning groove (222);

Or be equipped with setting element (221) on shelf (2), setting element (221) have along water constant head tank (222) that the length direction of pipe (22) extends, be equipped with on the periphery wall of pipe (22) of crossing water location portion (25) in constant head tank (222), can produce relative displacement between constant head tank (222) and constant head tank (25), and constant head tank (222) are located all the time.

23. The cleaning machine of claim 21, wherein: the front side wall of the water supply pipe (4) is provided with a convex part (42), the water outlet (41) is arranged on the convex part (42), the wall surface of the convex part (42) is a first inclined surface (421) inclined backwards from top to bottom, and the wall surface of the water inlet end of the water supply pipe (22) is a second inclined surface (223) which can be matched with the first inclined surface (421) in an inclined way.

24. The cleaning machine of claim 14, wherein: the water supply pipe (4) is provided with a vertically extending slide way (43), the water outlet (41) is positioned in the slide way (43) or at the end part of the slide way (43), and the water inlet end of the water passing pipe (22) can slide along the slide way (43).

25. The cleaning machine of claim 24, wherein: the slide way (43) is in a horn mouth shape with a reduced diameter along the direction of moving the water passing pipe (22) to the water outlet (41), and when the water passing pipe (22) corresponds to the water outlet (41), the water passing pipe (22) is positioned relative to the slide way (43) in the left-right direction.

26. The cleaning machine of claim 24, wherein: two guide blocks (224) are symmetrically arranged on the peripheral wall of the water inlet end of the water passing pipe (22), guide grooves (443) are formed in the side wall of the slideway (43) along the length direction of the slideway, and the guide blocks (224) correspondingly slide along the guide grooves (443) of one guide strip (44); the width of the guide groove (443) in the front-rear direction is gradually reduced along the direction that the water passing pipe (22) moves to the water outlet (41), and when the water passing pipe (22) corresponds to the water outlet (41), the guide block (224) is positioned relative to the guide groove (443) in the front-rear direction.

27. The cleaning machine of claim 14, wherein: the second spraying piece (32) is arranged in the box body (1), and the nozzle of the second spraying piece (32) faces the bowl frame (3).

28. The cleaning machine of claim 27, wherein: the second spraying piece (32) is positioned below the bowl rack (3), a rest table (45) is arranged at the lower part of the water supply pipe (4), the rest table (45) is positioned above the second spraying piece (32), and when the shelf (2) is positioned at the second position, the bottom of the water passing pipe (22) is placed on the rest table (45).

29. The cleaning machine of claim 27, wherein: be equipped with first spacing portion (26) on shelf (2), be equipped with second spacing portion (34) on bowl frame (3), when shelf (2) are in the second position, first spacing portion (26) support and press on second spacing portion (34), shelf (2) are located the top of second spray (32).