Cleaning machine

Abstract

The invention relates to a cleaning machine which comprises a water cup, an exhaust assembly and a valve pump assembly, a water drainage opening is formed in the bottom of the water cup, the valve pump assembly is connected with the water drainage opening, an inlet of the exhaust assembly is communicated with a washing cavity of the cleaning machine, an outlet of the exhaust assembly extends to the bottom of the cleaning machine, and a water drainage area is formed in the position, at the water drainage opening, of the bottom of the water cup. The valve pump assembly comprises a valve shell, the interior of the valve shell is hollow, a valve cavity communicated with the drainage area is formed, and a water outlet is formed in the side wall of the valve shell; the pump is arranged on the outer side of the valve shell, communicates with the water outlet of the valve shell and is used for sucking out water in the valve cavity; the inner diameter of the outlet section of the exhaust assembly is gradually reduced in the airflow direction to form the siphon section capable of generating negative pressure in the exhaust state, and a residual water drainage opening is formed in the bottom wall of the drainage area and connected with the siphon section; the plug is arranged in the valve cavity in a reciprocating motion mode and used for opening or closing a communication opening between the drainage area and the valve cavity.

Description

TECHNICAL FIELD

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

[0002] After washing, the dishwasher usually uses a valve pump assembly arranged at the bottom of the drain port to drain the washing water in the dishwasher. An exhaust assembly is arranged outside the dishwasher for exhausting the high heat and humidity in the washing cavity after washing. In order to remove condensate water, a condensate cavity is usually formed in the exhaust assembly.

[0003] The prior patent ZL 202321371090.6 of the applicant discloses a valve pump assembly for a cleaning machine, which includes a pump housing having a drain passage inside, the drain passage having a water inlet for communicating with a drain port of the cleaning machine and a water outlet for communicating with a drain pipe; a top wall of the pump housing is provided with an exhaust port; a float is arranged at least partially in the pump housing below the exhaust port, and can float upward to a second position, a third position above the second position, as the water level in the pump housing rises, and can move downward to a first position below the second position, as the water level in the pump housing decreases; a valve is constrained with the float and can move synchronously with the float, the valve closes the exhaust port when the float is in the first position, opens the exhaust port when the float is in the second position, and closes the exhaust port when the float is in the third position.

[0004] The above scheme can drain the trapped air in the pump housing, while avoiding accidental drainage of water in the pump housing with the trapped air. In view of the problem of no residual water at the bottom of the washing cavity, the above scheme usually closes the drain valve and then closes the drain pump when draining, to ensure that there is no residual water in a short time after draining; however, the water hanging on the inner wall, bowl rack, spray arm and other surfaces of the dishwasher will slowly flow back to the bottom of the dishwasher, resulting in residual water at the bottom. When the dishwasher is opened, the condensate water in the exhaust assembly is easy to drip onto the floor of the user's home, seriously affecting the user experience. SUMMARY

[0005] The present application solves the technical problem of the prior art, and provides a cleaning machine which can actively drain the condensate water of the exhaust assembly, and actively drain the residual water accumulated at the bottom of the washing cavity by means of the exhaust process, thereby realizing no residual water at the bottom of the washing cavity.

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

[0007] A cleaning machine comprises a water cup, an exhaust assembly and a valve-pump assembly, the water cup is provided with a water outlet at the bottom, the valve-pump assembly is connected with the water outlet, the inlet of the exhaust assembly is communicated with the washing cavity of the cleaning machine, and the outlet extends to the bottom of the cleaning machine, the bottom of the water cup is provided with a water draining area at the water outlet, and the valve-pump assembly comprises:

[0008] a valve shell, which is hollow inside and forms a valve cavity communicated with the water draining area, and is provided with a water outlet on the side wall;

[0009] a pump, which is arranged outside the valve shell and is communicated with the water outlet of the valve shell, and is used for sucking out water in the valve cavity;

[0010] a siphon section, the outlet section of the exhaust assembly is gradually reduced in diameter along the airflow direction to form the siphon section capable of generating negative pressure in the exhaust state, and the bottom wall of the water draining area is provided with a residual water outlet communicated with the siphon section;

[0011] a plug, which is arranged in the valve cavity and is capable of reciprocating movement, and is used for opening or closing the communication port between the water draining area and the valve cavity, at least a part of the plug corresponding to the communication port is a flexible part capable of deformation, and the outer end of the flexible part is provided with a blocking arm extending to the water draining area to open or close the residual water outlet;

[0012] a valve rod, which is arranged on the side of the valve shell and is connected with the plug, and is used for driving the plug to reciprocate to open or close the communication port, or driving the flexible part of the plug to deform to drive the blocking arm to move axially to open or close the residual water outlet.

[0013] in the water draining state, the valve rod drives the plug to open the communication port, and the pump operates to drain water in the washing cavity through the water draining area, the communication port, the valve cavity and the water outlet; in the water draining finished state, the pump stops operating, the valve rod drives the plug to close the communication port, and the blocking arm closes the residual water outlet; in the exhaust state, the valve rod drives the plug to keep closing the communication port, but the flexible part of the end of the plug deforms to drive the blocking arm to open the residual water outlet, and the exhaust assembly operates to drain the gas in the washing cavity, and the siphon section forms negative pressure to drain the residual water at the bottom of the water draining area through the residual water outlet, and the condensate water of the exhaust assembly is also sucked out.

[0014] Preferably, the bottom of the cleaning machine is provided with a base, and a water collecting tray corresponding to the outlet of the exhaust assembly is arranged on the base. By using such mechanism, the residual water can be avoided from being directly drained to the ground, and the user experience is improved.

[0015] Preferably, the exhaust assembly comprises an exhaust pipe and a fan, the side wall of the washing machine is provided with an air outlet, the first end of the exhaust pipe is connected with the air outlet, the exhaust pipe extends downwards close to the outer wall of the washing machine and forms a guide section extending downwards along the air flow direction at the bottom of the washing machine, a tapered section connected downstream of the guide section and gradually reducing in inner diameter, a contraction section connected downstream of the tapered section, the water outlet is connected with the bottom of the contraction section through a water guide pipe, and the fan is connected with the exhaust pipe. With the above structure, the condensed water in the exhaust assembly can be easily discharged to the outlet section and blown out, and at the same time, the siphon section is formed by the above structure to discharge the residual water at the bottom of the drainage area.

[0016] In order to realize reliable sealing in the closed state of the washing cavity, the valve cavity is arranged transversely and has an inner diameter larger than the diameter of the communication port, and the end of the plug forms a sealing surface capable of abutting against the inner end wall of the valve cavity to close the valve cavity.

[0017] Preferably, the outer edge of the plug extends rearward to form an extension sleeve abutting against the inner end wall of the valve cavity, and an elastic member is arranged in the extension sleeve to always keep the plug moving towards the communication port, and the valve rod is connected with a driving member for driving the reciprocating movement of the valve rod. The above structure is beneficial to improve the assembly compactness of the valve rod and other components and improve the reliability of the valve rod driving the plug.

[0018] Preferably, a retaining sleeve abutting against the inner end wall of the plug is arranged in the extension sleeve, the valve rod extends into the extension sleeve through the end of the valve cavity, and further extends through the elastic member, the retaining sleeve and the inner end wall of the plug. The retaining sleeve is made of a relatively hard material and mainly functions to maintain the edge of the plug from deforming, maintain the sealing of the plug to the communication port in the residual water discharge state of the drainage area, and allow the middle part of the plug to deform to drive the movement of the blocking arm.

[0019] Preferably, the cross section of the retaining sleeve is shaped as an arc structure arched inwardly towards the extension sleeve, and the arc structure and the inner end surface of the plug enclose a receiving cavity for the inward deformation of the flexible part. This structure allows the retaining sleeve to constrain the edge of the plug while allowing the middle part of the plug to deform and providing space for the deformation.

[0020] Preferably, a through hole is formed in the central part of the retaining sleeve for the valve rod to extend through, and a pressing piece is arranged on the outer periphery of the valve rod and capable of abutting against the end of the retaining sleeve away from the plug in the water discharge state. This structure can maintain the sealing of the closed washing cavity after the water discharge by pressing the retaining sleeve through the pressing piece.

[0021] Preferably, the water cup bottom is partially concave to form a concave cavity corresponding to the slag collecting basket, the drain port is arranged on the side of the concave cavity, the bottom wall of the concave cavity is gradually inclined downward from the side far away from the drain port to the direction of the drain port to form a first flow guide slope, the lowest part of the first flow guide slope is connected with the drain port in communication, and the inner bottom wall of the drain port is gradually lowered along the direction of water flow to form a second flow guide slope, and a drain area with a diameter larger than the drain port is formed outside the drain port and connected with the outer end of the second flow guide slope. The above structure is beneficial to guiding the residual water overflowing from the washing cavity inner wall, the bowl rack, the spray arm and the like to the drain area under the condition that the valve pump assembly is in the state of completing drainage, and further removing the residual water through siphon effect, so that the washing cavity is free of residual water.

[0022] Compared with the prior art, the advantages of the present application are that: the present application is provided with a siphon section at the outlet of the exhaust assembly, under the exhaust state, the siphon section generates negative pressure, which can suck out the condensed water in the exhaust assembly, so as to realize the residual water free of the drainage assembly; at the same time, the negative pressure generated by the siphon section can discharge the residual water accumulated in the bottom drainage area of the washing cavity through the residual water discharge port, so as to realize the residual water free of the washing cavity; when the valve rod closes the residual water discharge port, it does not affect the independent operation of the exhaust assembly. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic view of the cleaning machine of the embodiment of the present application;

[0024] Figure 2 It is a side view of the structure of the valve pump assembly of the embodiment of the present application; Figure 1

[0025] Figure 3 It is a structure schematic view of the water cup of the embodiment of the present application;

[0026] Figure 4 It is a sectional view of the valve pump assembly of the embodiment of the present application (the state of completing drainage, exhaust and residual water discharge of the washing cavity);

[0027] Figure 5 It is a sectional view of the valve pump assembly of the embodiment of the present application (the state of the washing cavity drainage). DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] ​In the description of the application, it should be understood that, if there are terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0030] In addition, if there are terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one feature. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0031] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise specifically defined and limited, if there are similar descriptions such as "first feature on or under the second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Where applicable, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0034] like Figures 1-5 As shown, the cleaning machine of this embodiment includes a water cup 1, an exhaust assembly 2 and a valve pump assembly a. The bottom of the water cup 1 is provided with a drain port 11. The valve pump assembly a is connected to the drain port 11. The inlet of the exhaust assembly 2 is connected to the washing chamber of the cleaning machine and the outlet extends to the bottom of the cleaning machine. A drainage area 12 is formed at the drain port 11 at the bottom of the water cup 1.

[0035] The aforementioned valve-pump assembly a includes a valve housing 3, a pump 4, a siphon section b, a plug 5, and a valve stem 6. The valve housing 3 is hollow, forming a valve cavity 31 that communicates with the drainage area 12. An outlet 300 is provided on the side wall of the valve housing 3. The pump 4 is located outside the valve housing 3 and communicates with the outlet of the valve housing 3, used to draw water out of the valve cavity 31. The outlet section of the exhaust assembly 2 has an inner diameter that gradually decreases along the airflow direction, forming a siphon section b that can generate negative pressure during exhaust. A residual water outlet 121 is provided on the bottom wall of the drainage area 12, and this residual water outlet 121 is connected to the siphon section b. The plug 5 can reciprocate. The plug 5 is movably disposed in the valve cavity 31 and is used to open or close the connection between the drainage area 12 and the valve cavity 31. At least the part of the plug 5 corresponding to the connection is a deformable flexible part. The outer end of the flexible part is provided with a stop arm 51 that extends to the drainage area 12 to open or close the residual water discharge port 121. The valve stem 6 is reciprocally disposed on the side of the valve body 3 and connected to the plug 5. It is used to drive the plug 5 to reciprocate to open or close the connection, or to drive the flexible part of the plug 5 to deform so as to drive the stop arm 51 to move axially to open or close the residual water discharge port 121.

[0036] In the draining state, valve stem 6 drives plug 5 to open the connection port, pump 4 runs, and discharges water from the washing chamber through drain area 12, connection port, valve chamber 31, and outlet. In the draining state, pump 4 stops running, valve stem 6 drives plug 5 to close the connection port, and baffle arm 51 closes the residual water outlet 121. In the venting state, valve stem 6 drives plug 5 to keep the connection port closed, but the flexible part at the end of plug 5 deforms, causing baffle arm 51 to open the residual water outlet 121, and venting assembly 2 runs. In the state of venting gas from the washing chamber, siphon section b forms a negative pressure, thereby venting the residual water at the bottom of drain area 12 through residual water outlet 121. At the same time, condensate from venting assembly 2 is also drawn out.

[0037] In this embodiment, a base (not shown in the figure) is provided at the bottom of the cleaning machine, and a water receiving tray (not shown in the figure) is formed on the base to correspond to the outlet arrangement of the exhaust assembly 2. This mechanism is used to prevent residual water from being directly discharged to the ground, thereby improving the user experience.

[0038] The exhaust assembly 2 in this embodiment includes an exhaust pipe 21 and a fan (not shown in the figure). An air outlet is provided on the side wall of the cleaning machine. The first end of the exhaust pipe 21 is connected to this air outlet. The exhaust pipe 21 extends downward close to the outer wall of the cleaning machine and forms a guide section 201 that gradually extends downward along the airflow direction at the bottom of the cleaning machine, a tapered section 202 connected downstream of the guide section 201 with a gradually decreasing inner diameter, and a contraction section 203 connected downstream of the tapered section 202. The residual water outlet 121 is connected to the bottom of the contraction section 203 through a water guide pipe 20. The fan is connected to the exhaust pipe 21. This structure facilitates the discharge of condensate from the exhaust assembly 2 to the outlet section and its blowing out. Simultaneously, it facilitates the formation of a siphon section b, thereby draining residual water from the bottom of the drainage area 12.

[0039] In order to achieve a reliable seal when the washing chamber is closed, the valve chamber 31 is arranged laterally and its inner diameter is larger than the diameter of the connecting port. The end of the plug 5 forms a sealing surface that can abut against the inner end wall of the valve chamber 31 to seal and close the valve chamber 31.

[0040] The outer edge of the aforementioned plug 5 extends rearward to form a telescopic sleeve 52 whose end abuts against the inner wall of the valve cavity 31. This telescopic sleeve 52 contains an elastic element 7, preferably a spring, that ensures the plug 5 maintains a constant tendency to move towards the communication opening. The valve stem 6 is connected to a driving element 8 for its reciprocating movement; in this embodiment, this is a motor. This structure improves the compactness of the assembly between the valve stem 6 and other components, and enhances the reliability of the valve stem 6 in driving the plug 5.

[0041] In this embodiment, the telescopic sleeve 52 is provided with a retaining sleeve 9 that abuts against the inner end wall of the plug 5. The valve stem 6 passes through the end of the valve cavity 31 and extends into the telescopic sleeve 52, and further passes through the elastic element 7 and the retaining sleeve 9 to connect with the inner end wall of the plug 5. The retaining sleeve 9 is made of a relatively hard material, and its main function is to keep the edge of the plug 5 from deforming. In the state of draining residual water in the drainage area 12, it maintains the seal of the plug 5 on the communication port, and allows deformation of the middle part of the plug 5 to drive the stop arm 51 to move.

[0042] The cross-section of the retaining sleeve 9 is formed as an arc-shaped structure that arches inward toward the telescopic sleeve 52. This arc-shaped structure, together with the inner end face of the plug 5, encloses a cavity 90 for inward deformation of the flexible portion. This structure allows the retaining sleeve 9 to constrain the edge of the plug 5 while allowing deformation of the middle part of the plug 5 and providing space for such deformation.

[0043] The aforementioned retaining sleeve 9 has a through hole in its central part for the valve stem 6 to pass through, and a pressure plate 61 is provided on the outer periphery of the valve stem 6 so as to abut against the end of the retaining sleeve 9 away from the plug 5 during the drainage process. This structure can maintain the sealing of the washing chamber by pressing the retaining sleeve 9 with the pressure plate 61 after the drainage is completed.

[0044] In this embodiment, the bottom of the water cup 1 is partially recessed to form a cavity 13 corresponding to the slag collection basket. The drain outlet 11 is located on the side of the cavity 13. The bottom wall of the cavity 13 gradually slopes downward from the side away from the drain outlet 11 towards the drain outlet 11 to form a first guide slope 131. The lowest point of the first guide slope 131 is connected to the drain outlet 11. The inner bottom wall of the drain outlet 11 gradually decreases along the water flow direction to form a second guide slope 111. Outside the drain outlet 11, a drainage area 12 is formed with its bottom wall connected to the outer end of the second guide slope 111 and its diameter larger than that of the drain outlet 11. The above structure is beneficial for guiding the residual water overflowing from the inner wall of the washing chamber, the dish rack, the spray arm, etc., to the drainage area 12 after the valve pump assembly a has finished draining, and then further draining it away by siphoning, so as to achieve no residual water in the washing chamber.

[0045] In this embodiment, a siphon section b is provided at the outlet of the exhaust assembly 2. In the exhaust state, the siphon section b generates negative pressure, which can draw out the condensate in the exhaust assembly 2, thereby achieving zero residual water in the drainage assembly. At the same time, the negative pressure generated by the siphon section b can discharge the residual water accumulated in the drainage area at the bottom of the washing chamber through the residual water outlet 121, achieving zero residual water in the washing chamber. When the residual water outlet 121 is closed by the valve stem 6, it does not affect the independent operation of the exhaust assembly 2.

[0046] The cleaning machine in this embodiment can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the cleaning machine to perform corresponding operations, thereby realizing intelligent control of the cleaning machine and improving the user experience.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A cleaning machine, comprising a water cup (1), an exhaust assembly (2), and a valve pump assembly (a), wherein the water cup (1) has a drain outlet (11) at its bottom, the valve pump assembly (a) is connected to the drain outlet (11), and the inlet of the exhaust assembly (2) is connected to the washing chamber of the cleaning machine, and the outlet extends to the bottom of the cleaning machine, characterized in that: The water cup (1) bottom forms a drainage area (12) at the drainage port (11), the valve pump assembly (a) comprises Valve shell (3), hollow inside forms a valve cavity (31) connected with the drainage area (12), the valve shell (3) side wall is provided with a water outlet; Pump (4), provided outside the valve shell (3), and the water outlet of the valve shell (3) is communicated, for pumping water in the valve cavity (31); Suction section (b), the outlet section of the exhaust assembly (2) gradually reduces in diameter along the airflow direction to form a suction section (b) capable of generating negative pressure in the exhaust state, the bottom wall of the drainage area (12) is provided with a residual water discharge port (121), which is connected with the suction section (b); Plug (5), reciprocatingly arranged in the valve cavity (31), for opening or closing the communication port between the drainage area (12) and the valve cavity (31), the plug (5) at least corresponds to the flexible part of the part of the communication port, the outer end of the flexible part is provided with a blocking arm (51) extending to the drainage area (12) to open or close the residual water discharge port (121); Valve stem (6), reciprocatingly arranged in the side of the valve shell (3) and connected with the plug (5), for driving the plug (5) to reciprocate to open or close the communication port, or driving the flexible part of the plug (5) to deform to drive the blocking arm (51) to move axially to open or close the residual water discharge port (121).

2. The cleaning machine of claim 1, wherein: In the drainage state, the valve stem (6) drives the plug (5) to open the communication port, the pump (4) runs, and the water in the washing cavity is discharged through the drainage area (12), the communication port, the valve cavity (31) and the water outlet; In the finished state, the pump (4) stops running, the valve stem (6) drives the plug (5) to close the communication port, and the blocking arm (51) closes the residual water discharge port (121); In the exhaust state, the valve stem (6) drives the plug (5) to keep the communication port closed, but the flexible part of the end of the plug (5) deforms to drive the blocking arm (51) to open the residual water discharge port (121), and the exhaust assembly (2) runs, in the state of discharging the gas in the washing cavity, the suction section (b) forms negative pressure to discharge the residual water in the bottom of the drainage area (12) through the residual water discharge port (121), at the same time, the condensate water of the exhaust assembly (2) is also pumped out.

3. The cleaning machine of claim 1, wherein: The bottom of the cleaning machine is provided with a base, and the base is provided with a water collecting tray corresponding to the outlet of the exhaust assembly (2).

4. The cleaning machine of claim 1, wherein: The exhaust assembly (2) comprises an exhaust pipe (21), the side wall of the cleaning machine is provided with an air outlet, the first end of the exhaust pipe (21) is communicated with the air outlet, the exhaust pipe (21) extends downward close to the outer wall of the cleaning machine and forms a guide section (201) extending downward along the airflow direction at the bottom of the cleaning machine, a tapered section (202) connected downstream of the guide section (201) and gradually reducing in diameter, and a contraction section (203) connected downstream of the tapered section (202), and the residual water discharge port (121) is connected with the bottom of the contraction section (203) through a water guide pipe.

5. The cleaning machine according to any one of claims 1 to 4, characterized in that: The valve cavity (31) is arranged transversely and has an inner diameter greater than the diameter of the communication port, and the end of the plug (5) forms a sealing surface capable of sealing against the inner end wall of the valve cavity (31) to close the valve cavity (31).

6. The cleaning machine of claim 5, wherein: The outer edge of the plug (5) extends rearward to form an extension sleeve (52) with its end abutting against the inner end wall of the valve cavity (31), and the extension sleeve (52) is provided with an elastic member (7) capable of always keeping the plug (5) in a moving trend toward the communication port, and the valve rod (6) is connected with a driving member (8) for driving the reciprocating movement thereof.

7. The cleaning machine of claim 6, wherein: The extension sleeve (52) is provided with a retaining sleeve (9) abutting against the inner end wall of the plug (5), the valve rod (6) extends into the extension sleeve (52) through the end of the valve cavity (31) and is further connected with the inner end wall of the plug (5) through the elastic member (7) and the retaining sleeve (9).

8. The cleaning machine of claim 7, wherein: The retaining sleeve (9) is shaped in an arc structure arched inwardly toward the extension sleeve (52), and the arc structure and the inner end surface of the plug (5) enclose a receiving cavity (90) capable of deforming inwardly.

9. The cleaning machine of claim 7, wherein: The central part of the retaining sleeve (9) is provided with a through hole for the valve rod (6) to pass through, and the valve rod (6) is provided with a pressing piece (61) capable of abutting against the end of the retaining sleeve (9) away from the plug (5) in the drainage state.

10. The cleaning machine according to any one of claims 1 to 4, characterized in that: The bottom of the water cup (1) is partially recessed to form a recessed cavity (13) corresponding to the slag collecting basket, the drainage port (11) is arranged on the side of the recessed cavity (13), the bottom wall of the recessed cavity (13) gradually inclines downward from the side away from the drainage port (11) to the drainage port (11) to form a first flow guide slope (131), the lowest part of the first flow guide slope (131) is connected with the drainage port (11), and the inner bottom wall of the drainage port (11) gradually decreases along the flow direction to form a second flow guide slope (111), and the drainage area (12) with a diameter greater than that of the drainage port (11) is formed outside the drainage port (11) and connected with the outer end of the second flow guide slope (111).

Images