A cleaning machine

Abstract

The present application relates to a kind of cleaning machines, including box, water distribution structure and pump water mechanism, the bottom of the box is provided with the lower concave water draining area, the water distribution structure is arranged outside box and is close to water draining area arrangement, the volute of the pump water mechanism is located in water draining area, it is characterized in that: the side wall of the water draining area is opened with the water outlet of water distribution structure intercommunication, the water outlet end of the volute and the water outlet of this water outlet end-to-end and is provided with the sealing assembly that can prevent water leakage at the butt joint place.This application will set up water distribution structure in box outside, the volute of pump water mechanism is set in box, the water outlet end of the volute and the water outlet on the inner wall of water draining area end-to-end after being connected by sealing assembly, to improve the sealing effect here, prevent leakage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dishwashers, in particular to a cleaning machine for cleaning dishes, fruits and vegetables. BACKGROUND

[0002] For table type and cabinet type dishwashers, in order to achieve a better washing effect, three spray arms are generally designed on the top, middle and bottom of the washing space. During operation, the washing pump delivers water to the top, middle and bottom spray arms through pipelines, and the water is sprayed from the top, middle and bottom spray arms and then falls back to the water cup at the bottom of the dishwasher. The washing pump delivers the water back to the top, middle and bottom spray arms to complete a cycle. Since there are many pipelines leading to the spray arms, if all the pipelines are opened, more water is needed to meet the needs of the system cycle.

[0003] In order to save water, the current dishwasher is generally designed with a water distribution structure. The water distribution structure controls the connection or isolation of the pipelines leading to the spray arms, thereby controlling the water spraying state of each spray arm as needed to save water. The water distribution structure for the dishwasher is disclosed in the following patent applications: CN201220433127.9, CN201220591683.9 and CN201220462476.3.

[0004] The existing water distribution valve structure is generally connected outside the dishwasher, and the water pump for pumping water to the spray arms is also arranged outside the dishwasher. The outlet of the water pump volute is connected with the water distribution structure. Since both the water pump volute and the water distribution structure are arranged outside the dishwasher, they are easy to assemble and can be sealed and connected by simple screws, sealing rings and the like. However, when the water pump volute is arranged inside the dishwasher and the water distribution structure is arranged outside the dishwasher, it is difficult to achieve convenient and effective sealing. SUMMARY

[0005] The present application aims to solve the technical problems of the prior art and provide a cleaning machine which can conveniently seal the volute arranged inside the cleaning machine and the water distribution structure arranged outside the cleaning machine, and has good sealing effect.

[0006] The technical solution adopted by the present application to solve the above technical problems is as follows:

[0007] A cleaning machine comprises a box body, a water distribution structure and a water pumping mechanism. The bottom of the box body is provided with a lower drain area. The water distribution structure is arranged outside the box body and close to the drain area. The volute of the water pumping mechanism is arranged in the drain area. The side wall of the drain area is provided with a water outlet connected with the water distribution structure. The water outlet end of the volute is connected with the water outlet, and a sealing assembly capable of preventing water leakage is arranged at the connection position.

[0008] In the above scheme, the volute has a transversely extending water outlet pipe, and the sealing assembly is sleeved on the outer periphery of the water outlet pipe and abuts against the side wall of the water draining area. The abutment of the sealing assembly against the side wall of the water draining area can prevent water leakage.

[0009] In the present application, the sealing assembly comprises a movable assembly and a limiting member. The movable assembly is axially movably sleeved on the water outlet pipe, and the limiting member is detachably buckled on the water outlet pipe and used for pressing the movable assembly against the side wall of the water draining area. With the above structure, during assembly, the movable assembly is first sleeved on the water outlet pipe and moved backward by a distance. After the water outlet end of the water outlet pipe is aligned with the water outlet, the movable assembly is moved to be close to the side wall of the water draining area. Finally, the movable assembly is limited by the limiting member to keep being pressed against the side wall of the water draining area, which is convenient to operate and reliable in sealing structure.

[0010] Preferably, in the assembled state, the first end surface of the limiting member abuts against the movable assembly, and the side wall of the water draining area is provided with a baffle capable of abutting against the second end surface of the limiting member. The position of the limiting member is constrained by the baffle to improve the sealing stability, and the baffle provides a restraining force for the limiting member without generating a reverse force on the volute, which is beneficial to improving the accuracy of volute positioning.

[0011] Further preferably, the baffle is located beside the water outlet and comprises a first part extending along the water outlet pipe and a second part bent from the first part towards the water outlet. In the assembled state, the second end surface of the limiting member abuts against the inner side surface of the second part.

[0012] Still further, the baffle is two pieces and is located on both sides of the water outlet. The two baffles are symmetrically arranged relative to the water outlet to form a containing cavity for containing the sealing assembly. This structure is beneficial to further improving the assembly reliability and stability of the sealing assembly and improving the sealing effect.

[0013] Preferably, the movable assembly comprises a movable sleeve and a sealing ring. The movable sleeve is sleeved on the outer periphery of the water outlet pipe and has a containing groove for containing the sealing ring on the side wall facing the water outlet. In the assembled state, the first side of the sealing ring is elastically pressed against the side wall of the water draining area. The containing groove extends outward from the inner edge of the movable sleeve so that the cross section of the movable sleeve forms an L-shaped structure. In the assembled state, the second side and the outer edge of the sealing ring are elastically pressed in the containing groove, and the inner edge of the sealing ring is elastically pressed against the outer peripheral wall of the water outlet pipe. With the above structure, the sealing in the radial direction of the water outlet pipe and the sealing in the axial direction of the water outlet and the water outlet pipe are simultaneously realized, thereby avoiding water leakage at the joint between the volute and the water outlet in all directions and improving the sealing effect.

[0014] Preferably, the limiting member is a C-shaped structure with elasticity, and the water outlet pipe is embraced by the limiting member through the opening of the limiting member. With this structure, the operation is more convenient.

[0015] Preferably, the volute is constrained on the bottom wall of the draining area, and the inner bottom wall of the water outlet pipe is sunken from the joint with the inner cavity of the volute to form a water guide area, and the water outlet end of the water guide area is in mutual butt joint with the water outlet. This structure lowers the water level of the water outlet part of the volute, which is beneficial to improve the water pumping effect.

[0016] In the present application, the part of the draining area for opening the water outlet is arranged vertically, and the water distribution structure is located outside the draining area and has a water distribution cavity in communication with the water outlet.

[0017] The water distribution structure of the present application comprises:

[0018] a shell having a hollow water distribution cavity, the side part of the water distribution cavity having a water inlet for being in mutual butt joint with the water outlet of the cleaning machine, the top part of the water distribution cavity having a first water outlet and a second water outlet, a partition plate being arranged vertically in the water distribution cavity and capable of separating the water distribution cavity into a first cavity corresponding to the first water outlet and a second cavity corresponding to the second water outlet, the water inlet being arranged corresponding to the second cavity, and the bottom part of the partition plate being provided with an opening capable of connecting the first cavity and the second cavity;

[0019] a fixing seat being arranged below the water distribution cavity, the fixing seat being provided with a mounting hole arranged corresponding to the second water outlet;

[0020] a movable column being capable of moving up and down and being constrained on the fixing seat through the mounting hole, the top part of the movable column being provided with a sealing plug capable of closing the second water outlet when the movable column is raised to the top part of the second cavity and closing the opening when the movable column is lowered to the bottom part of the second cavity; and

[0021] a driving assembly being arranged below the fixing seat and used for driving the movable column to move up and down.

[0022] The water distribution cavity of the water distribution structure of the present application is directly butt jointed with the water outlet of the cleaning machine without the need of connecting through a separate pipe, which not only makes the assembly more simple and convenient, but also improves the sealing performance of the connection part due to the avoidance of the use of the water pipe joint. Meanwhile, the sealing plug of the present application opens and closes the first water outlet and the second water outlet alternately through the up and down movement of the movable column, which realizes the independent and absolute sealing of the first water outlet and the second water outlet, thereby improving the sealing performance and reliability in the water distribution state and being beneficial to improve the water distribution effect.

[0023] Preferably, the fixed seat has a first water guide cavity corresponding to the first cavity, a second water guide cavity corresponding to the second cavity, and the opening is arranged on the fixed seat and located between the first water guide cavity and the second water guide cavity. This structure facilitates the communication between the first cavity and the second cavity, and in the second water outlet closed state, water is output through the first water outlet.

[0024] Preferably, a first plug-in part is arranged on the top wall of the fixed seat and can be inserted into the second cavity, and the movable column is lowered into the second water guide cavity, and the sealing plug is in abutment with the upper edge of the first plug-in part to fluidly separate the second cavity from the second water guide cavity. This structure facilitates the assembly of the fixed seat and the shell, and facilitates the closure of the opening and the first water outlet by separating the second cavity from the second water guide cavity, so that water is discharged through the second cavity and the second water outlet, and the sealing plug is in abutment with the upper end surface of the first plug-in part to achieve sealing, which is simple and reliable and has low production cost.

[0025] Preferably, a first protruding ring is arranged on the top wall of the fixed seat and surrounds the periphery of the first plug-in part, and a first sealing groove is formed between the first plug-in part and the first protruding ring, and a first sealing ring is embedded in the bottom of the first sealing groove. The lower edge of the shell corresponding to the second cavity is inserted into the first sealing groove and in abutment with the first sealing ring. A second plug-in part is arranged on the top wall of the fixed seat and can be inserted into the first cavity, and a second protruding ring is arranged on the periphery of the second plug-in part, and a second sealing groove is formed between the second plug-in part and the second protruding ring, and a second sealing ring is embedded in the bottom of the second sealing groove. The lower edge of the shell corresponding to the first cavity is inserted into the second sealing groove and in abutment with the second sealing ring. The above structure facilitates the sealing between the fixed seat and the shell, thereby avoiding liquid leakage at the connection between the two.

[0026] The water distribution structure of the present application further comprises a telescopic sleeve, the upper end of the telescopic sleeve is connected with the bottom edge of the sealing plug, the lower end of the telescopic sleeve is constrained on the fixed seat below the opening, the mounting hole is arranged corresponding to the inner cavity of the telescopic sleeve, and the movable column passes through the telescopic sleeve and the upper end is connected with the sealing plug. The telescopic sleeve is arranged to surround the assembly structure between the movable column and the sealing plug in the inner cavity of the telescopic sleeve, which can avoid the invasion of water and food residues, and at the same time, the telescopic sleeve surrounds the mounting hole, which facilitates the sealing of the mounting hole and avoids liquid leakage.

[0027] Preferably, the telescopic sleeve is a bellows integrally formed with the sealing plug, a clamping groove being formed between the bellows and the sealing plug in a circumferential direction, and a clamping ring being arranged on the outer edge of the upper end of the movable column and capable of being embedded in the clamping groove. A gasket extending in a radial direction is arranged at the lower edge of the telescopic sleeve, and a clamping groove for clamping the gasket is formed in the fixed seat near the opening, so that the gasket forms the inner bottom wall of the second water guide cavity in the assembled state. The above structure is beneficial to further improve the sealing performance.

[0028] Preferably, an elastic member capable of keeping the sealing plug always in an upward moving trend is arranged in the telescopic sleeve, the elastic member is sleeved on the outer periphery of the movable column and abuts against the inner edge of the upper end of the telescopic sleeve at the upper end and abuts against the fixed seat at the lower end. After being used for a long time, if the driving displacement of the driving assembly on the movable column appears a slight deviation due to signal transmission or other problems, the structure can keep the sealing plug in good sealing effect and avoid liquid leakage.

[0029] Preferably, the height of the inner bottom wall of the first water guide cavity is lower than the height of the inner bottom wall of the second water guide cavity, and a discharge port for discharging the stored water and residues in the water guide cavity is formed in the bottom of the first water guide cavity, and a valve is arranged on the discharge port. The structure timely discharges the stored water and residues in the water guide cavity.

[0030] In order to facilitate production and assembly, the housing has a first water guide sleeve extending downward along the edge of the first water inlet and a second water guide sleeve extending downward along the edge of the second water inlet, the first water guide sleeve, the second water guide sleeve and the portion between the first water guide sleeve and the second water guide sleeve together form the partition plate, the fixed seat is arranged at the lower end of the first water guide sleeve and the second water guide sleeve, and the opening is formed in the fixed seat.

[0031] Preferably, the housing is integrally formed with the bottom of the cleaning machine. The housing is integrally formed with the cleaning machine, that is, the water outlet of the cleaning machine and the water guide cavity are also an integral structure without the need for separate connection, which is beneficial to improve the sealing performance of the water guide cavity.

[0032] In the present application, the driving assembly includes a driving wheel and a driving member, the driving wheel is rotatably arranged below the fixed seat, the driving wheel is provided with a guide column extending in an axial direction and arranged perpendicularly to the movable column, correspondingly, the lower end of the movable column is provided with a guide groove extending in a transverse or longitudinal direction, and the guide column of the driving wheel is reciprocatingly and slidably constrained in the guide groove. The driving member rotates the driving wheel, so that the guide column pulls the movable column up and down through the guide groove to realize the alternate opening and closing of the first water outlet and the second water outlet.

[0033] In the above-mentioned schemes, a control assembly capable of controlling the operation of the driving member is further arranged below the fixed seat, and the control assembly is linked with the driving wheel. The structure is beneficial to control the water guide state and improve the use stability in a certain determined water guide state.

[0034] Preferably, the outer peripheral wall of the driving wheel is provided with a first protrusion and a second protrusion arranged at intervals in the axial direction, and the first protrusion and the second protrusion are respectively located on the opposite sidewalls of the driving wheel. Correspondingly, the driving wheel is provided below with a first micro switch capable of being closed under the driving of the first protrusion and a second micro switch capable of being closed under the driving of the second protrusion. In the closed state of the first micro switch, the first water outlet is opened and the second water outlet is closed. In the closed state of the second micro switch, the first water outlet is closed and the second water outlet is opened.

[0035] Preferably, the water pumping mechanism comprises a motor, an impeller assembly and the volute. The volute is arranged in the draining area of the box body. At least a part of the impeller assembly is arranged in the volute for water pumping. The motor is arranged at the outer bottom of the box body, and the output shaft of the motor penetrates through the bottom wall of the box body and is connected with the impeller assembly.

[0036] Preferably, the shell of the water distribution structure is integrally formed with the box body. The first water outlet and the second water outlet are arranged on the bottom wall of the box body and located on the side of the draining area. The shell is integrally formed with the cleaning machine, that is, the water outlet of the cleaning machine and the water distribution cavity are also integrally formed without the need for separate connection, which is beneficial to improve the sealing performance of the water distribution cavity.

[0037] Compared with the prior art, the water distribution structure of the present application is arranged outside the box body, and the volute of the water pumping mechanism is arranged inside the box body. The water outlet end of the volute is connected with the water outlet on the inner wall of the draining area through a sealing assembly, thereby improving the sealing effect at this position and preventing liquid leakage. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 FIG. 1 is a structural schematic view of an embodiment of the present application;

[0039] Figure 2 FIG. 2 is a structural schematic view of another angle of the embodiment of the present application; Figure 1

[0040] Figure 3 FIG. 3 is a sectional view of the embodiment of the present application;

[0041] Figure 4 FIG. 4 is another sectional view of the embodiment of the present application;

[0042] Figure 5 FIG. 5 is a sectional view of a water cup in the embodiment of the present application;

[0043] Figure 6 FIG. 6 is a structural schematic view of a fixing seat in the embodiment of the present application;

[0044] Figure 7 FIG. 7 is another structural schematic view of the embodiment of the present application; ​

[0045] Figure 8 Assembled view of the sealing assembly, the volute and the box in the embodiment of the present application;

[0046] Figure 9 Exploded view of the sealing assembly in the embodiment of the present application. DETAILED DESCRIPTION

[0047] The present application will be further described in conjunction with the embodiments of the drawings.

[0048] As Figures 1-9 shown, the cleaning machine of the present embodiment comprises a box 5, a water distribution structure M and a water pumping mechanism, the bottom of the box 5 is provided with a concave water draining area 52, the water distribution structure M is arranged outside the box 5 and close to the water draining area 52, the inner edge of the water pumping mechanism is provided with a volute 9 arranged in the water draining area 52, the sidewall of the water draining area 52 is provided with a water outlet 51 in communication with the water distribution structure M, the water outlet end of the volute 9 is in mutual butt joint with the water outlet 51 and is provided with a sealing assembly 70 capable of preventing water leakage at the butt joint.

[0049] The volute 9 has a transversely extending water outlet pipe 91, the sealing assembly 70 is sleeved on the outer periphery of the water outlet pipe 91 and abuts against the sidewall of the water draining area 52. The sealing assembly 70 abuts against the sidewall 522 of the water draining area 52, which can prevent water leakage at this position.

[0050] In the present embodiment, the sealing assembly 70 comprises a movable assembly and a limiting piece 703, the movable assembly is movably sleeved on the water outlet pipe 91 in the axial direction of the water outlet pipe 91, the limiting piece 703 is detachably buckled on the water outlet pipe 91 and is used for pressing the movable assembly against the sidewall 522 of the water draining area 52.

[0051] In the assembled state, the first end surface of the limiting piece 703 abuts against the movable assembly, the sidewall of the water draining area 52 is provided with a baffle 521 capable of abutting against the second end surface of the limiting piece 703. The position of the limiting piece 703 is constrained by the baffle 521 to improve the sealing stability, and the baffle 521 provides a constraint force for the limiting piece 703, which does not generate a reverse force on the volute 9, and is conducive to improving the positioning accuracy of the volute 9.

[0052] The baffle 521 is located beside the water outlet 51 and comprises a first portion 5211 extending along the water outlet pipe 91 and a second portion 5212 bent from the first portion 5211 to the water outlet 51, in the assembled state, the second end surface of the limiting piece 703 abuts against the inner side surface of the second portion 5212. The baffle 521 is two pieces and is arranged on both sides of the water outlet 51 symmetrically with respect to the water outlet 51 to form a containing cavity 5213 for containing the sealing assembly 70. This structure is conducive to further improving the assembly reliability and stability of the sealing assembly 70 and improving the sealing effect.

[0053] The movable component includes a movable sleeve 701 and a sealing ring 702. The movable sleeve 701 is fitted around the outer periphery of the water outlet pipe 91, and a receiving groove 7011 for accommodating the sealing ring 702 is formed on its side wall facing the water outlet 51. The receiving groove 7011 extends outward from the inner edge of the movable sleeve 701, thus forming an L-shaped structure in the cross-section of the movable sleeve 701. The limiting member 703 is a flexible C-shaped structure, and the limiting member 703 encircles the water outlet pipe 91 through its opening 7031. This structure makes operation more convenient.

[0054] The volute 9 is secured to the bottom wall of the drainage area 52 by screws. The inner bottom wall of the outlet pipe 91 sinks down from its connection with the inner cavity of the volute 9 to form a water guiding area 911. The outlet end of the water guiding area 911 is connected to the outlet 51. This structure lowers the water level in the outlet part of the volute 9, which helps to improve the water intake effect.

[0055] When assembling the volute 9 of this embodiment, the movable sleeve 701 and the sealing ring 702 are placed on the water outlet pipe 91 and moved backward a short distance. After the water outlet end of the water outlet pipe 91 is aligned with the water outlet 51, the volute 9 is first fixed to the bottom of the box with screws. Then, the movable sleeve 701 and the sealing ring 702 are moved until the sealing ring 702 is close to the side wall of the drainage area 52 and the sealing ring 702 is accommodated in the receiving groove 7011. Finally, the limiting member 703 is placed on the water outlet pipe 91 with its opening facing downward from top to bottom. The second limiting member 703... The end face abuts against the inner side of the second part 5212 of the baffle 521, thereby causing the first side of the sealing ring 702 to be elastically pressed against the side wall of the drainage area 52, the second side and outer edge of the sealing ring 702 to be elastically pressed against the receiving groove 7011, and the inner edge of the sealing ring 702 to be elastically pressed against the outer peripheral wall of the water outlet pipe 91. At the same time, the radial sealing of the water outlet pipe 91 and the axial sealing of the water outlet 51 and the water outlet pipe 91 are achieved, thereby preventing water leakage at the connection between the volute 9 and the water outlet 51 in all directions, improving the sealing effect, and making operation convenient.

[0056] It should be noted that this embodiment shows a preferred method of sealing component 70. Of course, it can also be sealed by a simple silicone sleeve. For example, the silicone sleeve is placed on the outer periphery of the water outlet pipe 91 and abuts against the side wall of the drain area 52, but the sealing effect of this method is poor.

[0057] In this embodiment, the portion of the drainage area 52 used for opening the water outlet 51 is arranged vertically, and the water distribution structure M is located outside the drainage area 52 and has a water distribution cavity 11 connected to the water outlet 51.

[0058] like Figures 1-6 As shown, the water distribution structure M in this embodiment includes a shell 1, a fixed base 2, a movable column 6, a drive assembly 3, and a control assembly 4.

[0059] likeFigure 2 As shown, the aforementioned housing 1 has a hollow water-dividing cavity 11. The side of the water-dividing cavity 11 has a water inlet 113 for connecting with the water outlet 51 of the cleaning machine. The top of the water-dividing cavity 11 has a first water outlet 111 and a second water outlet 112. A partition a is vertically arranged in the water-dividing cavity 11 to divide it into a first cavity 101 corresponding to the first water outlet 111 and a second cavity 102 corresponding to the second water outlet 112. The water inlet 113 is arranged corresponding to the second cavity 102. The bottom of the partition a has an opening 21 that connects the first cavity 101 and the second cavity 102.

[0060] like Figure 3 As shown, the fixed base 2 is located below the water distribution chamber 11, and the fixed base 2 has mounting holes 22 corresponding to the second water outlet 112. The movable column 6 can move up and down through the mounting holes 22 and is constrained on the fixed base 2. The top of the movable column 6 is provided with a sealing plug 61 that can close the second water outlet 112 when it rises to the top of the second chamber 102 and close the opening 21 when it descends to the bottom of the second chamber 102. The drive assembly 3 is located below the fixed base 2 and is used to drive the movable column 6 to move up and down. The control assembly 4 is located below the fixed base 2 and is used to control whether the drive assembly 3 operates, thereby positioning the water distribution state.

[0061] Specifically, the housing 1 has a first water guide sleeve 114 extending downward along the edge of the first water inlet 111 and a second water guide sleeve 115 extending downward along the edge of the second water inlet 112. The first water guide sleeve 114, the second water guide sleeve 115 and the part between them together constitute the aforementioned partition a. The fixing seat 2 is connected to the lower ends of the first water guide sleeve 114 and the second water guide sleeve 115, and the opening 21 is opened on the fixing seat 2.

[0062] The aforementioned fixing base 2 has a first water guiding cavity 103 corresponding to the first cavity 101 and a second water guiding cavity 104 corresponding to the second cavity 102, with an opening 21 located between the first water guiding cavity 103 and the second water guiding cavity 104. This structure facilitates the connection between the first cavity 101 and the second cavity 102, allowing water to be output through the first water outlet 111 when the second outlet 112 is closed. A first insertion part 23, which can be inserted into the second cavity 102, protrudes from the top wall of the fixing base 2 at the location corresponding to the second water guiding cavity 104. When the movable column 6 descends to the position within the second water guiding cavity 104, the sealing plug 61 abuts against the upper edge of the first insertion part 23, thus isolating the second cavity 102 from the second water guiding cavity 104. This structure facilitates the assembly of the fixing base 2 with the housing 1, and also facilitates the sealing of the opening 21 and the first water outlet 111 by separating the second cavity 102 from the second water guide cavity 104, allowing water to be discharged through the second cavity 102 and the second water outlet 112. The sealing plug 61 abuts against the upper end face of the first insertion part 23 to achieve a seal. It is simple, reliable, and has low production cost.

[0063] The top wall of the fixing base 2 is provided with a first protruding ring 24 arranged around the periphery of the first plug-in part 23, and a first sealing groove 231 is formed between the first protruding ring 24 and the first plug-in part 23, and a first sealing ring 232 is embedded in the bottom of the first sealing groove 230, and the lower edge of the shell 1 corresponding to the second cavity 102 is inserted into the first sealing groove 231 and abuts against the first sealing ring 232. The top wall of the fixing base 2 is provided with a second plug-in part 25 protruding and capable of being inserted into the first cavity 101 at the position corresponding to the first water guide cavity 103, and a second protruding ring 26 is arranged around the periphery of the second plug-in part 25, and a second sealing groove 251 is formed between the second protruding ring 26 and the second plug-in part 25, and a second sealing ring 252 is embedded in the bottom of the second sealing groove 251, and the lower edge of the shell 1 corresponding to the first cavity 101 is inserted into the second sealing groove 251 and abuts against the second sealing ring 252. The above structure is beneficial to realize the sealing between the fixing base 2 and the shell 1, thereby avoiding liquid leakage at the connection position.

[0064] The water distribution structure of the embodiment further comprises a telescopic sleeve 7, the upper end of the telescopic sleeve 7 is connected with the bottom edge of the sealing plug 61, the lower end of the telescopic sleeve 7 is constrained on the fixing base 2 below the opening 21, the mounting hole 21 is arranged corresponding to the inner cavity of the telescopic sleeve 7, and the movable column 6 passes through the telescopic sleeve 7 and the upper end is connected with the sealing plug 61. By arranging the telescopic sleeve 7, the assembly structure between the movable column 6 and the sealing plug 61 is surrounded in the inner cavity of the telescopic sleeve 7, so that the attack of water and food residues can be avoided, and meanwhile, the telescopic sleeve 7 surrounds the mounting hole 21, which is beneficial to improve the sealing performance at the mounting hole and avoid liquid leakage. The telescopic sleeve 7 is a bellows integrally formed with the sealing plug 61, and a clamping groove 611 arranged in the circumferential direction is formed between the bellows and the sealing plug 61, and correspondingly, a clamping ring 62 capable of being embedded in the clamping groove 611 is arranged at the outer edge of the upper end of the movable column 6. A gasket 71 extending in the radial direction is arranged at the lower edge of the telescopic sleeve 7, and the fixing base 2 is provided with a clamping groove 27 for clamping the gasket 71 thereinto near the opening 21, and in the assembled state, the gasket 71 constitutes the inner bottom wall of the second water guide cavity 104.

[0065] The telescopic sleeve 7 is provided with an elastic member 8 capable of keeping the sealing plug 61 always in the upward moving trend, and the elastic member 8 is a spring sleeved on the outer periphery of the movable column 6, the upper end abuts against the inner edge of the upper end of the telescopic sleeve 7, and the lower end abuts against the fixing base 2. After being used for a long time, if the driving displacement of the movable column 6 by the driving assembly 3 appears a slight deviation due to signal transmission or other problems, the structure can keep the sealing plug 61 in good sealing effect and avoid liquid leakage.

[0066] In the embodiment, the inner bottom wall of the first water guide cavity 103 is lower than that of the second water guide cavity 104, and the bottom of the first water guide cavity 103 is provided with a discharge port 105 for discharging the stored water and residues, and the discharge port 105 is provided with a valve. The structure can timely discharge the stored water and residues in the water guide cavity.

[0067] In the embodiment, as shown in Figure 3 , 4 The driving assembly 3 includes a driving wheel 31 and a driving member 32. The driving wheel 31 is rotatably arranged below the fixed seat 2, and is provided with guide columns 311 extending along the axial direction and arranged perpendicularly to the movable column 6. Correspondingly, the lower end of the movable column 6 is provided with a guide groove 63 extending transversely, and the guide columns 311 of the driving wheel 31 are reciprocally slidably constrained in the guide groove 63. The driving member 32 is a motor, which drives the driving wheel 31 to rotate, so that the movable column 6 is pulled up and down by the guide groove 63 through the guide columns 311, to realize the alternate opening and closing of the first water outlet 111 and the second water outlet 112.

[0068] The control assembly 4 of the embodiment is associated with the driving wheel 31. The structure facilitates the control of the water distribution state and improves the use stability under a certain water distribution state.

[0069] Specifically, as shown in Figure 4 The outer peripheral wall of the driving wheel 31 is provided with first protrusions 312 and second protrusions 313 arranged along the axial direction at intervals, and the first protrusions 312 and the second protrusions 313 are respectively located on the opposite sidewalls of the driving wheel 31. Correspondingly, the driving wheel 31 is provided below with a first micro switch 41 capable of being closed under the driving of the first protrusions 312 and a second micro switch 42 capable of being closed under the driving of the second protrusions 313, and the first micro switch 41, the second micro switch 42, the first protrusions 312 and the second protrusions 313 jointly constitute the control assembly 4. In the closed state of the first micro switch 41, the first water outlet 111 is opened and the second water outlet 112 is closed; in the closed state of the second micro switch 42, the first water outlet 111 is closed and the second water outlet 112 is opened.

[0070] It should be noted that the protrusions and the micro switches can not be provided, and the corresponding structure and signal transmission in the motor can be used to position the movable column under a certain water distribution state.

[0071] The inner edge of the pump water mechanism of the embodiment comprises a motor, an impeller assembly 902 and a volute 9, the volute 9 is arranged in the draining area 52 of the box body 5, at least a part of the impeller assembly 902 is arranged in the volute 9 for water pumping, the motor is arranged at the outer bottom of the box body 5 and the output shaft penetrates through the bottom wall of the box body 5 and is connected with the impeller assembly 902. The shell 1 of the water distribution structure is integrally formed with the box body 5, the first water outlet 111 and the second water outlet 112 are arranged on the bottom wall of the box body 5 and located at the side of the draining area 52. The shell 1 is integrally formed with the cleaning machine, that is, the water outlet 51 of the cleaning machine and the water distribution cavity 11 are also an integral structure without the need for separate connection, which is beneficial to improve the sealing performance of the water distribution cavity.

[0072] The fixed seat 2 of the embodiment is locked with the shell 1 through screws.

[0073] The water distribution structure of the embodiment and the cooperating installation structure with the box body 5 not only have good sealing performance and strong dismounting performance, but also have low cost and convenient installation and maintenance. The cooperating mode of the movable column 6, the telescopic sleeve 7 and the fixed seat 2 and the drain port structure reduce the problem of water storage and residue in the water distribution cavity 11.

[0074] When the driving member 32 drives the driving wheel 31 to rotate to the position where the guide column 311 is located at the upper edge of the driving wheel 31, the movable column 6 rises to the sealing plug 61 to close the second water outlet 112, the opening 21 is in the open state, water enters the first cavity 101 through the second cavity 102 and the opening 21 and is then output through the first water outlet 111, at this time, the first micro switch is closed, 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 driving wheel 31 to rotate to the position where the guide column 311 is located at the lower edge of the driving wheel 31, the movable column 6 descends to the position where the sealing plug 61 abuts against the upper end surface of the first plug-in part, the second water distribution cavity 104 is fluidically disconnected from the second cavity 102, water enters the second cavity 102 and is then directly output through the second water outlet 112, at this time, the second micro switch is closed, the driving member 32 stops running and remains in this state.

[0075] In the specification and claims of the present application, terms indicating directions, such as "front", "back", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various example structural parts and elements of the present application, but these terms are used herein only for the purpose of convenience of description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present application can be arranged in different directions, these terms indicating directions are only for illustration and should not be considered as limitation, for example, "upper" and "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

Claims

1. A cleaning machine comprising a box (5), a water distribution structure (M) and a water pumping mechanism, the bottom of the box (5) being provided with a lower recessed draining area (52), the water distribution structure (M) being arranged outside the box (5) and close to the draining area (52), the volute (9) of the water pumping mechanism being arranged in the draining area (52), characterized in that: The side wall of the water draining area (52) is provided with a water outlet (51) communicated with the water distribution structure (M), and the water outlet end of the volute (9) is in butt joint with the water outlet (51) and is provided with a sealing assembly (70) capable of preventing water leakage. The sealing assembly (70) is sleeved on the outer periphery of the water outlet pipe (91) and abuts against the side wall of the water draining area (52), and the sealing assembly (70) comprises a movable assembly and a limiting piece (703), the movable assembly comprises a movable sleeve (701) and a sealing ring (702), the movable assembly is movably sleeved on the water outlet pipe (91) in the axial direction of the water outlet pipe (91), and the limiting piece (703) is detachably buckled on the water outlet pipe (91) and used for pressing the movable assembly against the side wall of the water draining area (52); in the assembled state, the first end surface of the limiting piece (703) abuts against the movable assembly, the side wall of the water draining area (52) is provided with a baffle (521) capable of abutting against the second end surface of the limiting piece (703), and the baffle (521) is located on the side of the water outlet (51) and comprises a first part (5211) extending along the water outlet pipe (91) and a second part (5212) bent from the first part (5211) to the water outlet (51), and in the assembled state, the second end surface of the limiting piece (703) abuts against the inner side surface of the second part (5212).

2. The cleaning machine of claim 1, wherein: The baffle (521) is provided in two pieces and located on the two sides of the water outlet (51), and the two baffles (521) are symmetrically arranged relative to the water outlet (51) to form a containing cavity (5213) for containing the sealing assembly (70).

3. The cleaning machine of claim 1, wherein: The movable sleeve (701) is sleeved on the outer periphery of the water outlet pipe (91) and is provided with a containing groove (7011) on the side wall facing the water outlet (51) and used for containing the sealing ring (702), and in the assembled state, the first side of the sealing ring (702) is elastically pressed against the side wall of the water draining area (52).

4. The cleaning machine of claim 3, wherein: The containing groove (7011) extends outward from the inner edge of the movable sleeve (701) to form an L-shaped structure in the cross section of the movable sleeve (701), and in the assembled state, the second side and the outer edge of the sealing ring (702) are elastically pressed in the containing groove (701), and the inner edge of the sealing ring (702) is elastically pressed against the outer peripheral wall of the water outlet pipe (91).

5. The cleaning machine of claim 1, wherein: The limiting piece (703) is a C-shaped structure with elasticity, and the limiting piece (703) embraces the water outlet pipe (91) in the opening thereof.

6. The cleaning machine of any one of claims 1-5, wherein: The volute (9) is constrained on the bottom wall of the water draining area (52), and the inner bottom wall of the water outlet pipe (91) is sunken from the joint with the inner cavity of the volute (9) to form a water guide area (911), and the water outlet end of the water guide area (911) is in butt joint with the water outlet (51).

7. The cleaning machine of any one of claims 1-5, wherein: The part of the water draining area (52) for forming the water outlet (51) is vertically arranged, and the water distribution structure (M) is located outside the water draining area (52) and is provided with a water distribution cavity (11) communicated with the water outlet (51).

8. The cleaning machine of claim 7, wherein: The water diversion structure (M) comprises: a shell (1) having a hollow water diversion cavity (11), a water inlet (113) for mutually interfacing with a water outlet (51) of a cleaning machine is arranged on a side of the water diversion cavity (11), a first water outlet (111) and a second water outlet (112) are arranged on a top of the water diversion cavity (11), a partition plate (a) vertically arranged in the water diversion cavity (11) is capable of separating the water diversion cavity (11) into a first cavity (101) corresponding to the first water outlet (111) and a second cavity (102) corresponding to the second water outlet (112), the water inlet (113) is arranged corresponding to the second cavity (102), an opening (21) capable of communicating the first cavity (101) with the second cavity (102) is arranged on a bottom of the partition plate (a); a fixed seat (2) arranged below the water diversion cavity (11), a mounting hole (22) corresponding to the second water outlet (112) is arranged on the fixed seat (2); a movable column (6) capable of moving up and down and constrained on the fixed seat (2) through the mounting hole (22), a sealing plug (61) capable of closing the second water outlet (112) when the movable column (6) is raised to the top of the second cavity (102) and closing the opening (21) when the movable column (6) is lowered to the bottom of the second cavity (102) is arranged on a top of the movable column (6); and a driving assembly (3) for driving the movable column (6) to move up and down.

9. The cleaning machine of claim 8, wherein: The fixed seat (2) has a first water guide cavity (103) corresponding to the first cavity (101) and a second water guide cavity (104) corresponding to the second cavity (102), the opening (21) is arranged on the fixed seat (2) and located between the first water guide cavity (103) and the second water guide cavity (104).

10. The cleaning machine of claim 9, wherein: A first plug-in part (23) capable of being inserted into the second cavity (102) is protruded on a top wall of the fixed seat (2) corresponding to the second water guide cavity (104), the movable column (6) is lowered to be located in the second water guide cavity (104), the sealing plug (61) abuts against an upper edge of the first plug-in part (23) to fluidically separate the second cavity (102) from the second water guide cavity (104).

11. The cleaning machine of claim 10, wherein: A first protruding ring (24) is arranged on the top wall of the fixed seat (2) and surrounds a periphery of the first plug-in part (23), a first sealing groove (231) is formed between the first plug-in part (23) and the first protruding ring (24), a first sealing ring (232) is embedded in a bottom of the first sealing groove (231), a lower edge of the shell corresponding to the second cavity (102) is inserted into the first sealing groove (231) and abuts against the first sealing ring (232).

12. The cleaning machine of claim 9, wherein: A telescopic sleeve (7) is further included, an upper end of the telescopic sleeve (7) is connected with a bottom edge of the sealing plug (61), a lower end of the telescopic sleeve (7) is constrained on the fixed seat (2) below the opening (21), the mounting hole (21) is arranged corresponding to an inner cavity of the telescopic sleeve (7), the movable column (6) passes through the telescopic sleeve (7) and an upper end of the movable column (6) is connected with the sealing plug (61).

13. The cleaning machine of claim 12, wherein: The telescopic sleeve (7) is a bellows integrally formed with the sealing plug (61), and a clamping groove (611) is arranged circumferentially between the telescopic sleeve (7) and the sealing plug (61); correspondingly, a clamping ring (62) is arranged at the outer edge of the upper end of the movable column (6) and can be embedded in the clamping groove (611).

14. The cleaning machine of claim 12, wherein: A gasket (71) extending radially is arranged at the lower edge of the telescopic sleeve (7), and a clamping groove (27) for clamping the gasket (71) is arranged in the fixed seat (2) near the opening (21); in the assembled state, the gasket (71) constitutes the inner bottom wall of the second water guide cavity (104).

15. The cleaning machine of claim 12, wherein: An elastic member (8) is arranged in the telescopic sleeve (7) and can always keep the sealing plug (61) in an upward moving trend; the elastic member (8) is sleeved on the outer periphery of the movable column (6) and abuts against the inner edge of the upper end of the telescopic sleeve (7) at the upper end and abuts against the fixed seat (2) at the lower end.

16. The cleaning machine of any one of claims 1-5, wherein: The water pumping mechanism comprises a motor, an impeller assembly (902) and the volute (9); the volute (9) is arranged in the dewatering area (52) of the box body (5); at least a part of the impeller assembly (902) is arranged in the volute (9) and is used for pumping water; the motor is arranged at the outer bottom of the box body (5) and the output shaft of the motor penetrates through the bottom wall of the box body (5) and is connected with the impeller assembly (902).

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