A water diverter valve and a cleaning machine using the same

Abstract

The present invention relates to a water diversion valve and a cleaning machine using the water diversion valve. The water diversion valve includes a shell, a fixed seat, a first movable column, a second movable column, and a drive assembly. The shell has a water diversion chamber. The side of the water diversion chamber has a water inlet for docking with the water outlet of the cleaning machine. The top of the water diversion chamber has a first water outlet and a second water outlet. The fixed seat is provided at the bottom of the water diversion chamber. The first movable column and the second movable column can be constrained on the fixed seat so as to move up and down. After rising, the corresponding water outlets are sealed. The drive assembly is used to drive the first movable column and the second movable column to move up and down, and always keep the lifting and lowering directions opposite. The water diversion chamber of the water diversion valve of the present invention is directly docked with the water outlet of the cleaning machine, which improves the sealing performance of the connection. Through the alternating lifting and lowering of the first movable column and the second movable column, the first water outlet and the second water outlet are individually and absolutely sealed, which improves the sealing and reliability in the water diversion state, and is conducive to improving the water diversion effect.

Description

Technical Field

[0001] The invention relates to a water diversion valve and a cleaning machine using the water diversion valve. Background Art

[0002] To achieve optimal washing results, tabletop and cabinet dishwashers, with their large wash chamber, are typically designed with three spray arms: top, middle, and bottom. During operation, a wash pump delivers water through pipes to the top, middle, and bottom spray arms. The water sprays out from these arms, rinses the dishes, and then falls back into a water cup at the bottom of the dishwasher. The wash pump then delivers the returned water back to the top, middle, and bottom spray arms, completing a cycle. Because there are numerous pipes leading to each spray arm, if all pipes are open, a larger amount of water is required to maintain the system's circulation.

[0003] To achieve water conservation, current dishwashers are generally designed with water diverter valves. These control the connection or disconnection of pipes leading to the various spray arms, thereby adjusting the spraying state of each spray arm as needed and conserving water. Applications CN201220433127.9, "Water Diverter Valve and Dishwasher Having the Same," CN201220591683.9, "Dishwasher, Water Diverter Valve, and Water Blocking Structure Thereof," and CN201220462476.3, "Dishwasher and Water Diverter Valve Thereof," respectively disclose water diverter valve structures for dishwashers.

[0004] Existing water diverter valves are typically connected to the outside of the dishwasher. The water inlet of the diverter valve is located outside the dishwasher and needs to be connected to the dishwasher via a connecting pipe. This requires joints at both ends of the pipe. Commonly used joints, such as clamps and clamps, pose a high risk of water leakage at the connection. Furthermore, existing diverter valves rely primarily on water pressure to squeeze the movable mechanism within the water flow channel to form a sealing surface. This sealing method cannot achieve absolute sealing, resulting in poor sealing performance, which directly affects the water diversion effect of the diverter valve. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a water diverter valve with improved sealing performance by directly connecting the inner cavity of the water diverter valve with the dishwasher in response to the current status of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a water diversion valve that can absolutely seal the water outlet to improve the sealing performance and water diversion effect in response to the current status of the existing technology.

[0007] The third technical problem to be solved by the present invention is to provide a cleaning machine using the above-mentioned water diversion valve in response to the current status of the existing technology.

[0008] The technical solution adopted by the present invention to solve at least one of the above technical problems is: a water diverter valve, comprising

[0009] The shell has a hollow water diversion chamber on the upper part, a water inlet on the side of the water diversion chamber for docking with the water outlet of the cleaning machine, and a first water outlet and a second water outlet on the top of the water diversion chamber;

[0010] A fixing seat is provided at the bottom of the water diversion chamber, and is provided with a first mounting hole arranged corresponding to the first water outlet and a second mounting hole arranged corresponding to the second water outlet;

[0011] A first movable column is movable up and down through the first mounting hole and is constrained on the fixing seat, and a first sealing plug is provided on the top of the first movable column, which can seal the first water outlet when the first movable column rises to the first water outlet;

[0012] a second movable column, movable up and down through the second mounting hole and constrained on the fixing seat, the top of the second movable column being provided with a second sealing plug capable of closing the second water outlet when the second movable column rises to the second water outlet; and

[0013] The driving assembly is arranged below the fixing seat and is used to drive the first movable column and the second movable column to move up and down, and always keep the first movable column in an ascending state and the second movable column in a descending state; and always keep the first movable column in a descending state and the second movable column in an ascending state.

[0014] In the above embodiment, the drive assembly includes a cam and a drive member. The cam is rotatably positioned below the first and second movable columns and abuts against their respective lower ends. The drive member is positioned below the cam and is used to drive the cam to rotate. The drive member drives the cam to rotate, thereby driving the first and second movable columns to move up and down, thereby opening or closing the first and second water outlets.

[0015] Preferably, the cam comprises a disc-shaped base plate, the upper surface of which is provided with a circumferentially extending convex edge. The ends of the convex edge are approximately flush with the upper surface of the base plate, and the convex edge gradually rises from the ends toward the center, forming a guide slope. When the lower end of the first movable column is positioned between the ends of the convex edge, the lower end of the second movable column is positioned at the highest point of the guide slope. This structure facilitates the vertical movement of the first and second movable columns to always move in opposite directions, thereby achieving an absolute seal at the first or second water outlet, preventing water leakage and improving water diversion.

[0016] Preferably, the central angle of the arc corresponding to the convex edge is 250°~340°, and further preferably is 270°, that is, the central angle of the arc corresponding to the two ends of the convex edge is 90°. This structure cooperates with the first movable column and the second movable column to achieve absolute sealing of the first water outlet or the second water outlet.

[0017] In the above solutions, a control component capable of controlling whether the driving member is in operation is further provided below the fixing seat, and the control component is linked to the cam. This structure facilitates the control of the water diversion state and improves the stability of use in a certain water diversion state.

[0018] Preferably, a micro switch for controlling whether the driving member is operating is provided on the side of the cam, and a first lever arm and a second lever arm are arranged at intervals on the edge of the cam, which can close the micro switch as the cam rotates. When the first lever arm closes the micro switch, the first water outlet is opened and the second water outlet is closed. When the second lever arm closes the micro switch, the first water outlet is closed and the second water outlet is opened. The micro switch and the first lever arm and the second lever arm together constitute the control component.

[0019] Preferably, a vertically extending connecting shaft is provided at the bottom of the fixing seat, a sleeve rotatably sleeved on the outer periphery of the connecting shaft is provided at the central portion of the cam, and a limit block is provided on the outer periphery of the sleeve. Accordingly, a first limit rib and a second limit rib are provided on the bottom wall of the fixing seat, which can cooperate with the limit block to block the driving member and cut off the power. When the limit block and the first limit rib are in abutment with each other, the first water outlet is opened and the second water outlet is closed. When the limit block and the second limit rib are in abutment with each other, the first water outlet is closed and the second water outlet is opened. The limit block, the first limit rib and the second limit rib together constitute the control assembly. The above-mentioned driving member is a motor.

[0020] In the present invention, a circumferentially arranged ring gear is provided at the bottom edge of the cam, and the output shaft of the driving member is arranged transversely and connected to a gear that meshes with the ring gear for transmission, so that the cam is driven to rotate by the rotation of the motor.

[0021] Preferably, the drive assembly further includes a first elastic member and a second elastic member. The first elastic member maintains a downward movement tendency of the first movable column, and the second elastic member maintains a downward movement tendency of the second movable column. Upon removal of the driving force on the first or second movable column, this structure enables the corresponding water outlet to open promptly, thereby improving the operational sensitivity and reliability of the water diverter valve.

[0022] Preferably, the bottom wall of the fixing base is provided with a guide sleeve extending downwardly along the outer edge of the first mounting hole / second mounting hole, and a sealing ring is provided between the outer peripheral wall of the first movable column / second movable column and the inner wall of the guide sleeve. This structure helps to improve the sealing of the water diversion chamber and prevent water from entering the lower portion of the housing and affecting the drive assembly.

[0023] To facilitate assembly, a boss is provided at the bottom edge of the first movable column / second movable column, and the first elastic member / second elastic member is sleeved on the outer periphery of the guide sleeve with the upper end abutting against the bottom wall of the fixing seat and the lower end abutting against the boss.

[0024] Preferably, a downwardly recessed sealing groove is formed on the upper wall of the fixing base, surrounding the periphery of the first mounting hole / second mounting hole. When the first water outlet / second water outlet is fully opened, the corresponding first sealing plug / second sealing plug is accommodated in the sealing groove and forms a seal with the inner wall of the sealing groove. This structure further improves the sealing performance of the water diversion chamber.

[0025] Preferably, the fixing seat is located in the center of the housing, thereby dividing the housing cavity into an upper water diversion chamber and a lower installation chamber, in which the drive assembly is located. This structure facilitates installation of the drive assembly and makes the overall structure of the water diversion valve beautiful and highly reliable.

[0026] In order to facilitate the installation of the drive assembly, the housing includes an upper housing and a lower housing that can be matched with each other, and the upper housing and the lower housing are locked and connected by screws.

[0027] Preferably, the upper housing is detachably connected to the cleaning machine via a sealing structure; alternatively, the upper housing is integrally formed with the bottom of the cleaning machine. When the upper housing is detachably connected to the cleaning machine, the bottom of the cleaning machine is easily accessible for production, reducing production complexity. The upper housing is integrally formed with the cleaning machine, meaning that the water outlet and the water diversion chamber of the cleaning machine are also integrally formed, eliminating the need for a separate connection, which helps improve the sealing of the water diversion chamber.

[0028] A cleaning machine using the above-mentioned water diversion valve includes a housing and a water cup located at the bottom of the housing, the bottom wall of the water cup having a recessed bottom cavity, a water pump mechanism corresponding to the bottom cavity installed at the bottom of the housing, the water outlet opening being provided at the side of the bottom cavity, the water diversion valve being provided on the outer bottom wall of the water cup, the water inlet of the water diversion valve and the water outlet of the water cup being docked with each other, and a sealing gasket being provided at the docking point. The cleaning machine directly opens the water outlet of the water cup at the side of the bottom cavity, thereby directly connecting the water outlet of the water cup with the water inlet of the water diversion valve, without the need to use a separate pipe to connect the water cup to the water diversion cavity as in the prior art. This not only makes assembly more convenient, but also helps to improve sealing, avoid water leakage, and enhance the water diversion effect.

[0029] Preferably, the upper shell of the water diverter valve is integrally formed with the water cup, and the first and second water outlets are provided on the bottom wall of the water cup and are located beside the bottom cavity. Alternatively, the upper shell of the water diverter valve is detachably connected to the water cup, and the bottom of the water cup is provided with a first water outlet corresponding to the first water outlet and a second water outlet corresponding to the second water outlet, and the top wall of the shell is sealed to the bottom wall of the water cup. The upper shell is integrally formed with the cleaning machine, that is, the water outlet of the cleaning machine and the water diverter cavity are also an integrated structure and do not require a separate connection, which is conducive to improving the sealing of the water diverter cavity.

[0030] Preferably, when the upper portion of the housing is removably connected to the water cup, a protrusion with a ⊥-shaped cross-section is provided on the bottom wall of the water cup, located between the first and second water outlets. Correspondingly, a groove with a ⊥-shaped cross-section is provided on the top wall of the housing, located between the first and second water outlets, and slidably engages with the protrusion. A first sealing ring is provided between the top wall of the housing and the bottom wall of the water cup, surrounding the junction of the first water outlet and the first water outlet, and a second sealing ring is provided between the second water outlet and the second water outlet. This ensures a tight seal after the two are connected, preventing water leakage and improving the water distribution effect.

[0031] Compared with the prior art, the advantages of the present invention are that the water diversion chamber of the water diversion valve of the present invention is directly connected to the water outlet of the cleaning machine without the need for connection through a separate pipe. Not only is the assembly method simpler and more convenient, but also the sealing performance of the connection is improved by avoiding the use of water pipe joints. At the same time, the present invention realizes the separate and absolute sealing of the first water outlet and the second water outlet through the alternating lifting and lowering of the first movable column and the second movable column, thereby improving the sealing and reliability in the water diversion state, which is conducive to improving the water diversion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of Example 1 of the present invention;

[0033] Figure 2 for Figure 1 sectional view of

[0034] Figure 3 for Figure 1 Another cross-sectional view of;

[0035] Figure 4 This is a schematic structural diagram of a water cup in Example 1 of the present invention;

[0036] Figure 5 This is a schematic structural diagram of the upper housing in Example 1 of the present invention;

[0037] Figure 6 Schematic diagram of the structure of the cam in Example 1 of the present invention;

[0038] Figure 7 for Figure 6 A top view of

[0039] Figure 8 This is a schematic structural diagram of Example 2 of the present invention;

[0040] Figure 9 Schematic diagram of the matching structure of the cam and the fixing seat in Example 3 of the present invention;

[0041] Figure 10 for Figure 9 Schematic diagram of the bottom structure of the middle fixed seat;

[0042] Figure 11 This is a schematic diagram of the top structure of the fixing base in Example 4 of the present invention. DETAILED DESCRIPTION

[0043] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0044] Example 1:

[0045] like Figures 1 to 7 As shown, the water diversion valve of this embodiment includes a housing 1 , a fixing seat 2 , a first movable column 10 , a second movable column 20 , a driving assembly 3 and a control assembly 4 .

[0046] The upper portion of the shell 1 has a hollow water diversion chamber 11 , the side of the water diversion chamber 11 has a water inlet 113 for docking with the water outlet 51 of the cleaning machine, and the top of the water diversion chamber 11 has a first water outlet 111 and a second water outlet 112 .

[0047] The fixing seat 2 is disposed at the bottom of the water diversion chamber 11 . The fixing seat 2 is provided with a first mounting hole 21 corresponding to the first water outlet 111 and a second mounting hole 22 corresponding to the second water outlet 112 .

[0048] The first movable column 10 is capable of moving up and down, passing through a first mounting hole 21 and constrained on the fixed base 2. A first sealing plug 101 is provided at the top of the first movable column 10, capable of sealing the first water outlet 111 when the column is raised to the first water outlet 111. The second movable column 20 is capable of moving up and down, passing through a second mounting hole 22 and constrained on the fixed base 2. A second sealing plug 201 is provided at the top of the second movable column 20, capable of sealing the second water outlet 112 when the column is raised to the second water outlet 112. A drive assembly 3 is provided below the fixed base 2 to drive the first and second movable columns 10, 20 to move up and down, maintaining the vertical movement directions of the first and second movable columns 10, 20 in opposite directions. That is, when the first movable column 10 is raised, the second movable column 20 is lowered, and when the first movable column 10 is lowered, the second movable column 20 is raised. A control assembly 4 is provided below the fixed base 2 to control whether the drive assembly 3 is in operation, thereby determining the water diversion state.

[0049] Specifically, the drive assembly 3 includes a cam 31, a drive member 32, a first elastic member 33, and a second elastic member 34. The cam 31 is rotatably disposed below the first movable column 10 and the second movable column 20 and abuts against the lower ends of the first and second movable columns 10 and 20, respectively. The drive member 32 is disposed below the side of the cam 31 and is used to drive the cam 31 to rotate. The drive member 32 drives the cam 31 to rotate, thereby driving the first movable column 10 and the second movable column 20 to move up and down, thereby opening or closing the first water outlet 111 and the second water outlet 112.

[0050] like Figure 6 、 7 As shown, the cam 31 comprises a disc-shaped base plate 311, the upper surface of which is provided with a circumferentially extending flange 312. The ends of the flange 312 are approximately flush with the upper surface of the base plate 311. The flange 312 gradually rises from the ends toward the center, forming a guide slope 3121. When the lower end of the first movable column 10 is positioned between the ends of the flange 312, the lower end of the second movable column 20 is positioned at the highest point of the guide slope 3121. This structure ensures that the vertical movement directions of the first and second movable columns 10, 20 are always opposite, thereby achieving an absolute seal at the first water outlet 111 or the second water outlet 112, preventing water leakage and improving the water diversion effect. The central angle a of the arc corresponding to the convex edge 312 is 270°, that is, the central angle b of the arc corresponding to the two ends of the convex edge 312 is 90°. This structure cooperates with the first movable column 10 and the second movable column 20 to achieve absolute sealing of the first water outlet 111 or the second water outlet 112.

[0051] A vertically extending connecting shaft 24 is provided at the bottom of the fixing base 2 , and a shaft sleeve 314 rotatably sleeved on the outer periphery of the connecting shaft 24 is provided at the central portion of the cam 31 .

[0052] The driving member 32 is a motor. A circumferentially arranged ring gear 313 is provided at the bottom edge of the cam 31. The output shaft of the driving member 32 is arranged transversely and connected to a gear 321. The gear 321 meshes with the ring gear 313 to drive the cam 31 to rotate through the rotation of the motor.

[0053] The first elastic member 33 maintains a downward movement of the first movable column 10, while the second elastic member 34 maintains a downward movement of the second movable column 20. This structure allows the corresponding water outlet to open promptly after the driving force on the first movable column 10 or the second movable column 20 is removed, improving the operational sensitivity and reliability of the water diverter valve.

[0054] The bottom wall of the fixed base 2 is provided with a guide sleeve 23 extending downward along the outer edges of the first and second mounting holes 21 and 22, respectively. A sealing ring 231 is provided between the outer peripheral walls of the first and second movable columns 10 and 20 and the inner wall of the guide sleeve 23. This structure helps to improve the sealing of the water diversion chamber 11 and prevent water from entering the lower portion of the housing 1 and affecting the drive assembly 3. To facilitate assembly, a boss 100 is provided at the bottom edge of the first and second movable columns 10 and 20, respectively. The first and second elastic members 33 and 34 are sleeved on the outer peripheries of the corresponding guide sleeves 23, with their upper ends abutting against the bottom wall of the fixed base 2 and their lower ends abutting against the corresponding boss 100.

[0055] The control assembly 4 of this embodiment is linked to the cam 31. This structure controls the water diversion state and improves the stability of use in a certain water diversion state. Specifically, a micro switch 41 for controlling whether the drive member 32 is in operation is provided on the side of the cam 31. A first lever arm 42 and a second lever arm 43 are arranged at intervals on the edge of the cam 31, which can close the micro switch 41 as it rotates. When the first lever arm 42 closes the micro switch 41, the first water outlet 111 is opened and the second water outlet 112 is closed. When the second lever arm 43 closes the micro switch, the first water outlet 111 is closed and the second water outlet 112 is opened. The micro switch 41, the first lever arm 42, and the second lever arm 43 together constitute the control assembly 4.

[0056] In this embodiment, the fixing base 2 is located in the center of the housing 1, dividing the interior of the housing 1 into an upper water diversion chamber 11 and a lower mounting compartment 12. The drive assembly 3 is located within this mounting compartment 12. This structure facilitates installation of the drive assembly 3 and enhances the overall aesthetics and reliability of the water diversion valve. To facilitate installation of the drive assembly 3, the housing 1 comprises an upper housing 1a and a lower housing 1b that can be mated together. The upper and lower housings 1a and 1b are fastened together by screws.

[0057] The cleaning machine with the water diversion valve in this embodiment includes a box body and a water cup 5 located at the bottom of the box body. The bottom wall of the water cup 5 has a concave bottom cavity 52. ​​A water pump mechanism corresponding to the bottom cavity 52 is installed at the bottom of the water cup 5. The water outlet 51 is opened at the side of the bottom cavity 52. Figure 3As shown, the water diverter valve is mounted on the outer bottom wall of the water cup 5. The water inlet 113 of the water diverter valve and the water outlet 51 of the water cup 5 are connected to each other, and a sealing gasket 53 is provided at the connection point. A recessed space 54 for mounting the sealing gasket 53 is provided on the outer wall of the water cup 5, corresponding to the outer edge of the water outlet 51. The sealing gasket 53 is positioned within this space 54, with its first end face abutting against the end face of the space 54 at the outer edge of the water outlet 51. A rib 114 is provided on the side wall of the water diverter valve upper housing 1a, surrounding the water inlet 113, to abut against the outer end face of the sealing gasket 53. By directly establishing the water outlet 51 of the water cup 5 on the side of the bottom cavity 52, the water outlet 51 of the water cup 5 is directly connected to the water inlet 113 of the water diverter valve, eliminating the need for a separate pipe connecting the water cup and the water diverter cavity as in the prior art. This not only facilitates assembly but also improves sealing, prevents water leakage, and enhances the water diversion effect.

[0058] The upper shell 1a is detachably connected to the water cup 5. A first water outlet 501 corresponding to the first water outlet 111 and a second water outlet 502 corresponding to the second water outlet 112 are provided at the bottom of the water cup 5. The top wall of the shell 1 and the bottom wall of the water cup 5 are sealed.

[0059] Specifically, such as Figure 2 、 4 As shown in Figures 5 and 6, a protrusion 503 with an ⊥-shaped cross section is provided on the bottom wall of the water cup 5 and is located between the first water outlet 111 and the second water outlet 501. Correspondingly, a groove 115 with an ⊥-shaped cross section is provided on the top wall of the housing 1 and is located between the first water outlet 111 and the second water outlet 112. This groove 115 slidably engages with the protrusion 503 to facilitate assembly between the housing 1 and the water cup 5. A first sealing ring 504 is provided between the top wall of the housing 1 and the bottom wall of the water cup 5, surrounding the junction of the first water outlet 111 and the first water outlet 501, and a second sealing ring 505 is provided between the top wall of the housing 1 and the bottom wall of the water cup 5 to ensure a tight seal after the two are connected, prevent water leakage, and improve the water separation effect.

[0060] The water diversion valve structure of this embodiment and its coordinated installation structure with the water cup 5 not only ensures good sealing and strong disassembly, but also reduces costs and facilitates installation and maintenance. The coordination between the movable column and the fixed base reduces the problem of water and residue accumulation in the water diversion chamber 11.

[0061] When the water diversion valve of this embodiment is used, when the driving member 32 drives the cam 31 to rotate until the top of the convex edge 312 abuts against the lower end of the second movable column 20, and the two ends of the convex edge 312 abut against the lower end of the first movable column 10, the second movable column 20 is raised, and the second sealing plug 201 seals the second water outlet 112. After the first movable column 10 descends, the first water outlet 111 is opened. At this time, the first lever arm 42 on the cam 31 closes the micro switch 41, and the driving member 32 stops running and remains in this state. After the driving member 32 is operated again, the driving member 32 drives the cam 31 to rotate until the top of the convex edge 312 abuts against the lower end of the first movable column 10, and the two ends of the convex edge 312 abut against the lower end of the second movable column 20, the first movable column 10 is lifted, and the first sealing plug 101 seals the first water outlet 111. After the second movable column 20 descends, the second water outlet 112 is opened. At this time, the second lever arm 43 on the cam 31 closes the micro switch 41, and the driving member 32 stops running and remains in this state.

[0062] Example 2:

[0063] The difference between this embodiment and embodiment 1 is that: Figure 8 As shown, the upper housing 1a of the water diversion valve in this embodiment is integrally formed with the water cup 5. The first and second water outlets 111, 112 are formed on the bottom wall of the water cup 5 and are located adjacent to the bottom cavity 52. ​​The upper housing 1a is integrally formed with the cleaning machine, meaning that the water outlet 51 and the water diversion cavity 11 are also integrally formed, eliminating the need for a separate connection. This improves the sealing performance of the water diversion cavity 11.

[0064] Example 3:

[0065] The difference between this embodiment and embodiment 1 is that: Figure 9 、 10 As shown, a limiting block 315 is provided on the periphery of the sleeve 314, and correspondingly, a first limiting rib 25 and a second limiting rib 26 are provided on the bottom wall of the fixed seat 2, which can cooperate with the limiting block 315 to block the driving member 32 and cut off the power. When the limiting block 315 and the first limiting rib 25 are in abutment with each other, the first water outlet 111 is opened and the second water outlet 112 is closed. When the limiting block 315 and the second limiting rib 26 are in abutment with each other, the first water outlet 111 is closed and the second water outlet 112 is opened. The limiting block 315 and the first limiting rib 25 and the second limiting rib 26 together constitute a control component 4.

[0066] Example 4:

[0067] The difference between this embodiment and embodiment 1 is that: Figure 11As shown, the upper wall of the fixing base 2 is provided with downwardly recessed sealing grooves 27 surrounding the peripheries of the first mounting hole 21 and the second mounting hole 22, respectively. When the first water outlet 111 or the second water outlet 112 is fully open, the corresponding first sealing plug 101 / second sealing plug 201 is accommodated in the sealing grooves 27 and forms a seal with the inner wall of the sealing grooves 27. This structure further improves the sealing performance of the water diversion chamber 11.

[0068] In the present specification and claims, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Because the embodiments disclosed herein can be arranged in various orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine comprising a housing and a water cup (5) located at the bottom of the housing, characterized in that: The bottom wall of the water cup (5) has a concave bottom cavity (52), the bottom of the box body is equipped with a water pump mechanism corresponding to the bottom cavity (52), and also includes a water diversion valve. The water outlet (51) of the water cup is opened on the side of the bottom cavity (52), and the water diversion valve is arranged on the outer bottom wall of the water cup (5). The water diverter valve comprises: The housing (1) has a hollow water diversion chamber (11) at its upper portion, a water inlet (113) on its side for docking with a water outlet (51) of a cleaning machine, and a first water outlet (111) and a second water outlet (112) at its top. A fixing seat (2) is provided at the bottom of the water diversion chamber (11), and the fixing seat (2) is provided with a first mounting hole (21) arranged corresponding to the first water outlet (111) and a second mounting hole (22) arranged corresponding to the second water outlet (112); A first movable column (10) is movable up and down through the first mounting hole (21) and is constrained on the fixed seat (2); a first sealing plug (101) is provided on the top of the first movable column (10) and is capable of closing the first water outlet (111) when the first movable column (10) rises to the first water outlet (111); a second movable column (20) capable of moving up and down through the second mounting hole (22) and constrained on the fixing seat (2); a second sealing plug (201) capable of closing the second water outlet (112) when the second movable column (20) is raised to the second water outlet (112); and A driving assembly (3) is provided below the fixing seat (2) and is used to drive the first movable column (10) and the second movable column (20) to move up and down, and always keep the first movable column (10) in an ascending state and the second movable column (20) in a descending state, and the first movable column (10) in a descending state and the second movable column (20) in an ascending state; The water inlet of the water diversion valve and the water outlet (51) of the water cup (5) are butted against each other, and a sealing gasket (53) is provided at the butt joint; A sealing groove (27) is formed on the upper wall surface of the fixing seat (2) and is recessed downwardly around the periphery of the first mounting hole (21) / the second mounting hole (22); when the first water outlet (111) / the second water outlet (112) is in a fully open state, the corresponding first sealing plug (101) / the second sealing plug (201) is accommodated in the sealing groove (27) and forms a seal with the inner wall of the sealing groove (27); The housing (1) comprises an upper housing (1a) and a lower housing (1b) which can be matched with each other.

2. The cleaning machine according to claim 1, characterized in that: The driving assembly (3) includes a cam (31) and a driving member (32), so that the cam (31) is rotatably arranged below the first movable column (10) and the second movable column (20) and respectively abuts against the lower ends of the two, and the driving member (32) is arranged below the side of the cam (31) and is used to drive the cam (31) to rotate.

3. The cleaning machine according to claim 2, characterized in that: The cam (31) has a disc-shaped bottom plate (311), and the upper surface of the bottom plate (311) is provided with a convex edge (312) extending in the circumferential direction. The two ends of the convex edge (312) are respectively approximately flush with the upper surface of the bottom plate (311). The convex edge (312) gradually rises from the two ends to the middle to form a guide inclined surface (3121). When the lower end of the first movable column (10) is located between the two ends of the convex edge (312), the lower end of the second movable column (20) is arranged corresponding to the highest point of the guide inclined surface (3121).

4. The cleaning machine according to claim 3, characterized in that: The central angle of the arc corresponding to the convex edge (312) is 250° to 340°.

5. The cleaning machine according to claim 2, characterized in that: A control component (4) capable of controlling whether the driving member (32) operates is also provided below the fixing seat (2), and the control component (4) is linked to the cam (31).

6. The cleaning machine according to claim 5, characterized in that: A micro switch (41) for controlling whether the driving member (32) operates is provided on the side of the cam (31). A first lever arm (42) and a second lever arm (43) are arranged at intervals on the edge of the cam (31) so as to close the micro switch (41) as the cam rotates. When the first lever arm (42) closes the micro switch (41), the first water outlet (111) is opened and the second water outlet (112) is closed. When the second lever arm (43) closes the micro switch (41), the first water outlet (111) is closed and the second water outlet (112) is opened. The micro switch (41), the first lever arm (42) and the second lever arm (43) together constitute the control assembly (4).

7. The cleaning machine according to claim 5, characterized in that: The bottom of the fixing seat (2) is provided with a vertically extending connecting shaft (24), the central portion of the cam (31) is provided with a shaft sleeve (314) which is rotatably sleeved on the outer periphery of the connecting shaft (24), and a limiting block (315) is provided on the outer periphery of the shaft sleeve (314). Accordingly, the bottom wall of the fixing seat (2) is provided with a first limiting rib (25) and a second limiting rib (25) which can cooperate with the limiting block (315) to block the rotation of the driving member (32) and cut off the power. 6), when the limiting block (315) and the first limiting rib (25) are in contact with each other, the first water outlet (111) is opened and the second water outlet (112) is closed; when the limiting block (315) and the second limiting rib (26) are in contact with each other, the first water outlet (111) is closed and the second water outlet (112) is opened; the limiting block (315), the first limiting rib (25) and the second limiting rib (26) together constitute the control component (4).

8. The cleaning machine according to claim 2, characterized in that: A circumferentially arranged ring gear (313) is provided at the bottom edge of the cam (31), and the output shaft of the driving member (32) is arranged transversely and connected to a gear (321), which is meshed with the ring gear (313) for transmission.

9. The cleaning machine according to claim 2, characterized in that: The driving assembly (3) further comprises a first elastic member (33) and a second elastic member (34), wherein the first elastic member (33) enables the first movable column (10) to always maintain a downward movement trend, and the second elastic member (34) enables the second movable column (20) to always maintain a downward movement trend.

10. The cleaning machine according to claim 9, characterized in that: A guide sleeve (23) extending downwardly along the outer edge of the first mounting hole (21) / the second mounting hole (22) is provided on the bottom wall of the fixing seat (2), and a sealing ring (231) is provided between the outer peripheral wall of the first movable column (10) / the second movable column (20) and the inner wall of the guide sleeve (23).

11. The cleaning machine according to claim 10, characterized in that: A boss (100) is provided at the bottom edge of the first movable column (10) / the second movable column (20); the first elastic member (33) / the second elastic member (34) is sleeved on the outer periphery of the guide sleeve (23) with the upper end abutting against the bottom wall of the fixing seat (2) and the lower end abutting against the boss (100).

12. The cleaning machine according to any one of claims 1 to 11, characterized in that: The fixing seat (2) is arranged at the central part of the shell, thereby dividing the inner cavity of the shell (1) into a water separation cavity (11) located at the upper part and an installation chamber (12) located at the lower part. The driving component (3) is arranged in the installation chamber (12).

13. The cleaning machine according to any one of claims 1 to 11, wherein the upper shell (1a) and the lower shell (1b) are fastened together by screws.

14. The cleaning machine according to any one of claims 1 to 11, characterized in that: The upper shell (1a) is used for detachable connection with the cleaning machine via a sealing structure.

15. The cleaning machine according to any one of claims 1 to 11, characterized in that: The upper shell (1a) is integrally formed with the bottom of the cleaning machine.

16. According to the cleaning machine according to any one of claims 1 to 11, the upper part of the shell (1) of the water diversion valve is integrally formed with the water cup (5), and the first water outlet (111) and the second water outlet (112) are opened on the bottom wall of the water cup (5) and are located beside the bottom cavity (52).

17. The cleaning machine according to any one of claims 1 to 11, characterized in that: The upper portion of the housing (1) of the water diversion valve is detachably connected to the water cup (5); a first water outlet (501) corresponding to the first water outlet (111) and a second water outlet (502) corresponding to the second water outlet (112) are formed at the bottom of the water cup (5); and the top wall of the housing and the bottom wall of the water cup (5) are sealed.

18. The cleaning machine according to claim 17, characterized in that: A protrusion (503) with a ⊥-shaped cross section is provided on the bottom wall of the water cup (5) and is located between the first water outlet (501) and the second water outlet (502). Correspondingly, a groove (115) with a ⊥-shaped cross section is provided on the top wall of the shell (1) and is located between the first water outlet (111) and the second water outlet (112). The groove (115) is slidably plugged into the protrusion (503).

19. The cleaning machine according to claim 17, characterized in that: A first sealing ring (504) arranged around the connection between the first water outlet (111) and the first water passage (501) and a second sealing ring (505) arranged around the connection between the second water outlet (112) and the second water passage (502) are provided between the top wall of the shell (1) and the bottom wall of the water cup (5).

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