Cleaning machine

Abstract

The utility model relates to a cleaning machine which comprises a water cup and a water pump, the water cup is provided with a water return area, the water pump is arranged in the water return area and is provided with a water suction port and a water outlet, and the water outlet of the water pump is provided with a water guide pipe which can stretch out and draw back in the radial direction along with the water pressure so as to control the water outlet area. When the actual water pumping flow of the water pump is large, the water guide pipe can expand in the radial direction and increase the water outlet flow along with the increase of the water pressure, and when the actual water pumping flow of the water pump is reduced, the water guide pipe can contract in the radial direction and reduce the water outlet flow along with the decrease of the water pressure, so that the water flow is automatically adjusted according to the actual water pumping condition, and the water efficiency and the cleaning effect are improved; and meanwhile, the noise problem caused by unstable water pressure is eliminated or reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dish washer technical field, specifically point to a kind of for cleaning tableware, fruit and vegetable washing machine. BACKGROUND

[0002] Dish washer has been widely used in family kitchen. Dish washer is generally provided with spray arm for spraying water column, and the bottom of the box body is provided with concave water return area, the top of the water return area is covered with filter plate, and the water pump is used to pump the water in the water return area to the spray arm above the filter plate to realize the circulating injection of washing water.

[0003] The open water pump is used to draw water for the spray arm, which can greatly shorten the water return path, improve the water return efficiency, and facilitate the maintenance of the water pump. The Chinese patent with the authorization announcement number CN222018271U discloses a water flow system for washing machine and washing machine (application number: CN202420069275.X), which includes a water cup and a water pump. The water cup is provided with a concave water return area, the water pump is arranged in the water return area and has an inlet at the bottom, the bottom wall of the water pump and the inner bottom wall of the water return area form a water suction area with an open side, the water pump is provided with a first water outlet extending upward for supplying water to the bottom spray arm, and a second water outlet extending transversely from the side of the water pump and connected with the assembly opening on the side wall of the water cup. The second water outlet is used to supply water to the upper layer of the spray.

[0004] In the above scheme, since the diameters of the two water outlets of the water pump are fixed, the water flow distributed to the bottom spray and the upper layer spray through the two water outlets cannot be adjusted according to the actual pumping capacity of the water pump. On the one hand, it leads to large pipeline loss, affecting water efficiency and cleaning effect, and on the other hand, uneven distribution of two-way water flow also easily leads to vibration of the water pump and generates noise.

[0005] Therefore, the current washing machine and its water pump matching structure need to be further improved. INVENTION CONTENTS

[0006] The utility model solves the technical problem in the prior art, and provides a washing machine which can automatically adjust water flow according to actual pumping condition to improve water efficiency, cleaning effect and reduce noise.

[0007] The utility model solves the above technical problem by adopting the following technical scheme:

[0008] A washing machine comprises a water cup and a water pump, the water cup is provided with a water return area, the water pump is arranged in the water return area and provided with a water suction port and a water outlet, and a water guide pipe is arranged at the water outlet of the water pump and can radially expand or contract according to water pressure to control water outlet area.

[0009] When the actual water pumping flow of the water pump is large, the water guide pipe can expand along the radial direction with the increase of water pressure to increase the water outlet flow, and when the actual water pumping flow of the water pump is small, the water guide pipe can contract along the radial direction with the decrease of water pressure to reduce the water outlet flow, thereby automatically adjusting the water flow according to the actual water pumping condition, improving the water efficiency and cleaning effect, and eliminating or reducing the noise problem caused by unstable water pressure.

[0010] Preferably, the water guide pipe comprises a plurality of telescopic units connected with each other in the circumferential direction, and each telescopic unit is shaped as a structure extending along the axial direction of the water guide pipe and arching outwardly in the radial direction. The plurality of telescopic units are integrally formed by injection molding, and the telescopic structure is stable and reliable, facilitating production.

[0011] Preferably, the cross section of each telescopic unit is shaped as a U-shaped structure with an opening facing the center of the water guide pipe, the end portions of two adjacent U-shaped structures are connected by a connecting section, and the inner surface of each connecting section is shaped as an arc surface arching outwardly, and each arc surface and the U-shaped structure jointly enclose the inner surface of the water guide pipe. With the above structure, the structures are highly symmetrical in the circumferential direction after being connected, and the structure is reliable and stable.

[0012] In the utility model, the water pump comprises a first water outlet and a second water outlet, and the water guide pipe is arranged at the first water outlet and / or the second water outlet. The water guide pipe can be arranged at any water outlet to realize self-adaptive adjustment of the water outlet flow of the two water outlets.

[0013] Preferably, the first water outlet vertically extends from the edge of the water pump and is used for supplying water for bottom spraying, the second water outlet horizontally extends from the edge of the water pump and is used for supplying water for upper spraying, and the water guide pipe is arranged at the second water outlet. In order to adapt to the structure of the triangular water return area, the two water outlets of the utility model are different in direction, the first water outlet is used for main spraying water supply, and the second water outlet is used for auxiliary spraying water supply. The water guide pipe is arranged on the path of the auxiliary spraying, the water outlet flow of the auxiliary spraying water path is controlled to realize the water flow distribution of the two water outlets as a whole, and the stability of the water flow on the main water supply pipeline is maximized.

[0014] In order to facilitate assembly, the second water outlet is arranged on the side wall of the water pump, and the first end of the water guide pipe is arranged around the periphery of the second water outlet. The side wall of the water pump is provided with a mounting groove capable of at least partially surrounding the water guide pipe at the periphery corresponding to the second water outlet, and a limiting ring is arranged around the periphery of the water guide pipe in the mounting groove. Since the water pressure at the water outlet of the water pump is large, the mounting groove and the limiting ring structure are adopted to improve the reliability of the connection between the water inlet end of the water guide pipe and the second water outlet, and to control the telescopic amount of the water inlet end of the water guide pipe.

[0015] In order to facilitate production and manufacture, the water pump comprises an upper shell and a lower shell which are butted together, the lower shell is shaped to form a complete second water outlet, and the upper shell is covered on the lower shell at the position corresponding to the second water outlet. By shaping the lower shell to form the complete second water outlet, the problem that the water outlet formed by butting the upper shell and the lower shell together is prone to water leakage is avoided, and the upper shell is covered on the lower shell at the position corresponding to the second water outlet, so that the sealing performance is further improved.

[0016] Preferably, the mounting groove is a semi-enclosed structure which is closed at the upper part and open at the lower part, and the semi-enclosed structure is shaped on the upper shell. By adopting such a structure, the mounting groove structure is easily formed.

[0017] Preferably, the sidewall of the water cup is provided with a mounting opening which is connected with the water guide pipe in a plug-in manner, and a sealing element is arranged between the outer wall of the water guide pipe and the inner wall of the mounting opening. The sealing element can be realized by glue injection or a soft rubber pad embedded therein, so that the sealing performance at this position is improved.

[0018] Compared with the prior art, the water pump has the advantages that: the water guide pipe which can expand or contract radially according to the water pressure is arranged at the water outlet of the water pump, so as to control the water outlet area. When the actual water pumping flow of the water pump is large, the water guide pipe can expand radially along with the increase of the water pressure, so as to increase the water outlet flow. When the actual water pumping flow of the water pump is small, the water guide pipe can contract radially along with the decrease of the water pressure, so as to reduce the water outlet flow. Therefore, the water flow is automatically adjusted according to the actual water pumping condition, the water efficiency and the cleaning effect are improved, and the noise problem caused by unstable water pressure is eliminated or reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model embodiment;

[0020] Figure 2 It is Figure 1 It is an assembly structure schematic view of the water pump and the water guide pipe;

[0021] Figure 3 It is Figure 2 It is a bottom structure schematic view of the water pump;

[0022] Figure 4 It is Figure 2 It is an exploded view of the water pump;

[0023] Figure 5 It is Figure 4 It is an enlarged view of the A part in the water pump. DETAILED DESCRIPTION

[0024] In order to make the above object, 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 with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, 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 present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0027] 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 understood in a broad sense. 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 communication or 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.

[0028] In the utility model, unless another definite provision and limitation, if there is first feature on second feature "on" or "under" and similar description, its meaning can be first and second feature direct contact, or first and second feature indirectly contact through intermediate medium.

[0029] Need to explain, if the element is called "fixed to" or "set to" another element, it can be directly on another element or there can be a central element. If an element is considered "connected" to another element, it can be directly connected to another element or there can be a central element. If there is, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the utility model are only for illustrative purposes and do not represent the only embodiment.

[0030] As shown in Figures 1 to 5 The cleaning machine of the embodiment comprises a water cup 1 and a water pump 2, the water cup 1 is provided with a water return area 11, the water pump 2 is arranged in the water return area 11, the bottom of the water pump 2 is provided with a water suction port 23, the side is provided with a water outlet, and the water outlet of the water pump 2 is provided with a water guide pipe 3 capable of expanding radially according to the size of water pressure to control the water outlet area.

[0031] When the actual water pumping flow of the water pump 2 is large, the water guide pipe 3 can expand radially along with the increase of water pressure, and the water outlet flow is increased, when the actual water pumping flow of the water pump 2 is reduced, the water guide pipe 3 can contract radially along with the decrease of water pressure, and the water outlet flow is reduced, so that the water flow is automatically adjusted according to the actual water pumping condition, the water efficiency and the cleaning effect are improved, and the noise problem caused by unstable water pressure is eliminated or reduced.

[0032] The water guide pipe 3 comprises a plurality of expansion units 31 connected to each other in the circumferential direction, and each expansion unit 31 is shaped as a structure extending in the axial direction of the water guide pipe 3 and arching outward in the radial direction. The plurality of expansion units 31 are integrally formed by injection molding, and the expansion structure is stable and reliable, facilitating production.

[0033] Specifically, the cross section of each expansion unit 31 is shaped as a U-shaped structure with an opening facing the center of the water guide pipe 3, the end portions between the two adjacent U-shaped structures are connected through a connecting segment 32, the inner surface of each connecting segment 32 is shaped as an arc surface 321 arching outward, and each arc surface 321 and the U-shaped structure jointly enclose the inner surface of the water guide pipe 3. With the above structure, the structures are highly symmetrical in the circumferential direction after being connected, and the structure is reliable and stable.

[0034] In the embodiment, the water pump 2 comprises a first water outlet 21 and a second water outlet 22, and the water guide pipe 3 is arranged at the first water outlet 21 and / or the second water outlet 22. The water guide pipe 3 can be arranged at any water outlet to realize adaptive adjustment of water flow output at the two water outlets.

[0035] The first water outlet 21 extends vertically from the edge of the water pump 2 and is used to supply water for the lower layer of spray, the second water outlet 22 extends transversely from the edge of the water pump 2 and is used to supply water for the upper layer of spray, and the water guide pipe 3 is arranged at the second water outlet 22. In order to adapt to the structure of the triangular water return area 11, the directions of the two water outlets of the embodiment are different, the first water outlet 21 is used to supply water for the main spray, the second water outlet 22 is used to supply water for the auxiliary spray, the water guide pipe 3 is arranged on the path of the auxiliary spray, and the water flow distribution of the two water outlets is realized by controlling the water output of the auxiliary spray water path, thereby maximizing the stability of the water flow in the main water supply pipeline.

[0036] In order to facilitate assembly, the second water outlet 22 is opened on the side wall of the water pump 2, and the first end of the water guide pipe 3 is arranged around the periphery of the second water outlet 22. The side wall of the water pump 2 is provided with a mounting groove 24 capable of at least partially surrounding the water guide pipe 3 at the periphery corresponding to the second water outlet 22, and a limiting ring 25 is arranged around the periphery of the water guide pipe 3 in the mounting groove 24. Since the water pressure at the water outlet of the water pump 2 is large, the mounting groove 24 and the limiting ring 25 structure are adopted to improve the reliability of the connection between the water inlet end of the water guide pipe 3 and the second water outlet 22, and to control the extension amount of the water inlet end of the water guide pipe 3.

[0037] In order to facilitate production and manufacturing, the water pump 2 comprises an upper shell 201 and a lower shell 202 which are vertically connected, the lower shell 202 is shaped to form a complete second water outlet 22, and the upper shell 201 is wrapped on the lower shell 202 at the position corresponding to the second water outlet 22. The complete second water outlet 22 is formed by shaping the lower shell 202, the second water outlet 22 extends outward to form a plug-in sleeve 221, the water guide pipe 3 is sleeved on the periphery of the plug-in sleeve 221, thereby avoiding the problem that the water outlet formed by the upper and lower shells 202 is prone to water leakage, and the upper shell 201 is wrapped on the lower shell 202 at the position corresponding to the second water outlet 22, so as to further improve the sealing performance.

[0038] The mounting groove 24 is a semi-enclosing structure with a closed upper part and an open lower part, and the semi-enclosing structure is shaped on the upper shell 201. By adopting such a structure, the mounting groove 24 structure can be easily shaped.

[0039] The side wall of the water cup 1 is provided with a mounting opening 12 which is connected with the water guide pipe 3 in a plug-in manner, and a sealing element is arranged in the mounting opening 12 between the outer wall of the water guide pipe 3 and the inner wall of the mounting opening 12. The sealing element can be realized by glue injection or embedded soft rubber pad, so as to improve the sealing performance at this position.

[0040] The water guide pipe 3 is arranged at the water outlet of the water pump 2 and can expand or contract radially to control the water outlet area.

[0041] The positional relationship among the water cup, the water pump, the slag collecting basket and the heating element in the embodiment is the same as that of CN202420069275.X, and thus is not described herein.

[0042] In actual application, the water guide pipe and the pump shell can be connected through a clamp. Under different flow rates, the water guide pipe is subjected to radial force and can adjust the outlet area with the change of water pressure. When the water pressure is high, the water guide pipe can be automatically expanded, and the wall thickness can be compressed. When the water pressure is low, the water guide pipe can be automatically contracted. Therefore, the outlet of the pump shell of one cleaning machine installation platform can be expanded or contracted to the same size as the outlet of another installation platform, so as to realize self-adaptive adjustment. The embodiment can adapt to the flow rate and water pressure of different platform cleaning conditions, simplify the pump shell classification process, and improve the efficiency. The two outlets are respectively matched with the inlet of the inner water pipe to balance the overall flow rate of the water pump, so as to realize noise reduction.

[0043] The technical features of the above-described embodiments can be combined arbitrarily.

[0044] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the patent application range. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection range of the present application. Therefore, the protection range of the present application patent should be subject to the appended claims.

Claims

1. A cleaning machine comprising a water cup (1) provided with a backwater area (11) and a water pump (2) arranged in the backwater area (11) and provided with a water suction port (23) and a water discharge port, characterized in that: The water outlet of the water pump (2) is provided with a water guide pipe (3) capable of radially expanding and contracting according to the water pressure to control the water outlet area.

2. The cleaning machine of claim 1, wherein: The water guide pipe (3) comprises a plurality of expansion units (31) connected with each other in the circumferential direction, and each expansion unit (31) is shaped as a structure extending in the axial direction of the water guide pipe (3) and arching outward in the radial direction.

3. The cleaning machine of claim 2, wherein: The cross section of each expansion unit (31) is shaped as a U-shaped structure with an opening facing the center of the water guide pipe (3), and the end portions of two adjacent U-shaped structures are connected by a connecting section (32), and the inner surface of each connecting section (32) is shaped as an arc surface arching outward, and each arc surface and the U-shaped structure jointly enclose the inner surface of the water guide pipe (3).

4. The machine according to claim 1 or 2 or 3, characterized in that: The water pump (2) comprises a first water outlet (21) and a second water outlet (22), and the water guide pipe (3) is arranged at the first water outlet (21) and / or the second water outlet (22).

5. The cleaning machine of claim 4, wherein: The first water outlet (21) extends vertically from the edge of the water pump (2) and is used for supplying water for bottom spraying, and the second water outlet (22) extends transversely from the edge of the water pump (2) and is used for supplying water for upper spraying, and the water guide pipe (3) is arranged at the second water outlet (22).

6. The cleaning machine of claim 5, wherein: The second water outlet (22) is arranged on the side wall of the water pump (2), and the first end of the water guide pipe (3) is arranged around the periphery of the second water outlet (22).

7. The cleaning machine of claim 6, wherein: The side wall of the water pump (2) is provided with a mounting groove (24) capable of at least partially surrounding the water guide pipe (3) at the periphery corresponding to the second water outlet (22), and the mounting groove (24) is provided with a limiting ring (25) arranged around the periphery of the water guide pipe (3).

8. The cleaning machine of claim 7, wherein: The water pump (2) comprises an upper shell (201) and a lower shell (202) which are vertically connected, the lower shell (202) is shaped to form a complete second water outlet (22), and the upper shell (201) is wrapped on the lower shell (202) at the position corresponding to the second water outlet (22).

9. The cleaning machine of claim 8, wherein: The mounting groove (24) is a semi-enclosing structure with a closed upper part and an open lower part, and the semi-enclosing structure is formed on the upper shell (201).

10. The cleaning machine of claim 5, wherein: The side wall of the water cup (1) is provided with a mounting opening (12) connected with the water guide pipe (3) in a plug-in manner, and the mounting opening (12) is provided with a sealing element filled between the outer wall of the water guide pipe (3) and the inner wall of the mounting opening (12).

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