A cleaning machine

Abstract

The present invention relates to a cleaning machine, comprising a box, an upper bowl basket, a lower bowl basket, a bottom spray arm, a top spray arm, and a tableware basket layer. The upper bowl basket and the lower bowl basket are arranged in the box with an interval from top to bottom. The tableware basket layer is arranged between the upper bowl basket and the lower bowl basket. The bottom of the top spray arm is provided with a downwardly extending water collecting bin. The side of the water collecting bin is provided with a water outlet extending in the circumferential direction so as to spray toward the outer ring part of the tableware basket layer in a sheet-like water trajectory. The bottom of the water collecting bin is provided with a water outlet hole capable of spraying toward the inner ring part of the tableware basket layer longitudinally. The present invention arranges the tableware basket between the upper bowl basket and the lower bowl basket with a larger space, and sprays water to different areas of the tableware basket layer through the circumference and the bottom of the water collecting bin, and sprays sheet-like water that can sweep a large area to the outer ring part, and sprays columnar water with greater force to the inner ring part. Tableware of suitable cleaning difficulty can be placed in the corresponding area. On the basis of multi-angle spraying, the spraying force can be adjusted to improve the cleaning effect.

Description

Technical Field

[0001] The invention relates to the technical field of dishwashers, in particular to a washing machine for washing tableware. Background Art

[0002] In order to reasonably utilize the internal space of the dishwasher, a cutlery tray is generally provided in the dishwasher. For example, the Chinese utility model patent "A dishwasher and its inner tank assembly" (application number: CN202120130779.4) with authorization announcement number CN214760975U discloses a structure, which is provided with an inner tank assembly, the inner tank assembly includes a cutlery tray and a guide rail provided on the inner wall of the inner tank, and the cutlery tray is provided with a first pulley group sleeved with the guide rail, so that the cutlery tray can be stored in the inner tank as the first pulley group moves on the guide rail.

[0003] The above-mentioned dishwasher sets the tableware tray on the top layer of the dishwasher tank. Most dishwashers on the market currently adopt such an arrangement so that the tableware can be rinsed through the spray arm set on the top of the tank. However, since the space on the top of the dishwasher tank is relatively narrow, the installation of the spray structure is limited, and the direction of the spray water column is mostly one-way spray, resulting in poor tableware cleaning effect. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a cleaning machine capable of spraying tableware layers at multiple angles to improve the cleaning effect in view of the current status of the prior art.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A washing machine comprises a housing, an upper bowl basket, a lower bowl basket, a bottom spray arm and a top spray arm, wherein the upper bowl basket and the lower bowl basket are arranged in the housing with an interval up and down, the bottom spray arm is arranged under the lower bowl basket and is used for spraying and cleaning the tableware in the lower bowl basket, the top spray arm is rotatably arranged at the bottom of the upper bowl basket and is used for spraying and cleaning the tableware in the upper bowl basket, and also comprises a tableware basket layer, which is arranged between the upper bowl basket and the lower bowl basket, the bottom of the top spray arm is provided with a water collecting bin extending downward, the side of the water collecting bin is provided with a water outlet extending in a circumferential direction so as to spray toward the outer circle part of the tableware basket layer with a sheet-like water trajectory, and the bottom of the water collecting bin is provided with a water outlet hole capable of spraying longitudinally toward the inner circle part of the tableware basket layer.

[0007] Preferably, a barrel-shaped water collecting box is arranged under the top spray arm, and the interior of the water collecting box is hollow to form the water collecting bin. A water outlet is opened on the bottom wall of the top spray arm to connect it with the water collecting bin, the water outlet is opened on the side wall of the water collecting box, and the water outlet hole is opened on the bottom wall of the water collecting box.

[0008] Preferably, the water outlet is a narrow and long opening extending along the circumference of the water collecting box, and there are two water outlets symmetrically arranged on the outer peripheral wall of the water collecting box, so that a large-area sheet-like water track is formed through the water outlet as the top spray arm rotates, thereby improving the flushing effect on the tableware.

[0009] Preferably, the water outlet hole includes a first water outlet hole, a second water outlet hole and a third water outlet hole, the first water outlet hole is a circular hole and is located in the central part of the bottom wall of the water collecting box, the second water outlet hole and the third water outlet hole are both rectangular holes and are symmetrically arranged on both sides of the first water outlet hole, and the second water outlet hole and the third water outlet hole are both arranged obliquely along the water flow direction and the inclination directions of the two are opposite. With the above structure, the three water outlet holes spray water columns in different directions and trajectories, which can increase the spray range, eliminate cleaning dead corners, and improve the cleaning effect of tableware.

[0010] Preferably, the second water outlet is arranged close to the first water outlet, the third water outlet is arranged close to the second water outlet, the second water outlet is inclined from the first water outlet to the water outlet on its adjacent side along the water flow direction, and the third water outlet is inclined along the water flow direction to the water outlet adjacent to it. From the cross-section, the second water outlet and the third water outlet form a symmetrical "eight"-shaped structure with the first water outlet as the center. This structure is conducive to forming a spraying area with a relatively fixed range and trajectory through the second water outlet and the third water outlet, thereby improving the cleaning effect of the area.

[0011] As an improvement, the water collection box is provided with an impeller that can rotate under the impact of water flow to alternately open and close the two water outlets, and when the first water outlet is open and the second water outlet is closed, the second water outlet remains open and the third water outlet remains closed or the flow rate is reduced; when the second water outlet is open and the first water outlet is closed, the third water outlet remains open and the second water outlet remains closed or the flow rate is reduced. Opening and closing the two water outlets alternately by the impeller is conducive to increasing the flow rate and pressure of the water waves sprayed from the water outlets, thereby improving the cleaning effect. Since the impeller floats up and down under the buoyancy of water, it is impossible for the impeller to completely close the second water outlet and the third water outlet for a long time, but rather to open and close intermittently or increase the flow rate of one and reduce the flow rate of the other. This structure can also alternately control the flow rate and pressure of the sprayed water column in different areas to improve the cleaning effect.

[0012] Preferably, from a top view, the impeller includes a first edge formed in a semicircular shape and a second edge formed in an S shape and connected end to end with the first edge, and the impeller is provided with a connecting shaft extending vertically at the central part of the S-shaped second edge, and the lower end of the connecting shaft is rotatably inserted in the first water outlet. With the above structure, the S-shaped second edge is conducive to driving the impeller to rotate under the impact of water flow and reducing energy loss.

[0013] Preferably, the outer diameter of the connecting shaft is smaller than the inner diameter of the first water outlet hole. When the assembly is completed, a gap for water to pass through is formed between the outer peripheral surface of the connecting shaft and the inner peripheral surface of the first water outlet hole. The lower end of the connecting shaft is provided with a limit ring that can be offset against the outer bottom wall of the water collecting box. During the cleaning process, the impeller floats up and down under the buoyancy of the water and the power of the water spray, and a water-guiding gap with automatically adjustable height is formed between the upper surface of the limit ring and the lower surface of the water collecting box. With the above structure, during the spraying process, the size of the water-guiding gap is automatically adjusted according to the water flow rate and the buoyancy of the water, thereby controlling the angle and strength of the sprayed water, expanding the cleaning range, and improving the cleaning effect.

[0014] In the present invention, the outer peripheral wall corresponding to the first edge of the impeller rotates to control the alternating opening and closing of the two water outlets, and the bottom wall of the impeller rotates to control the alternating opening and closing or flow rate adjustment of the second and third water outlets.

[0015] Preferably, a water pump assembly for water supply is provided at the bottom of the box body, a first water outlet of the water pump assembly is connected to the bottom spray arm, and a second water outlet is connected to the top spray arm through a water guide pipe.

[0016] Compared with the prior art, the advantages of the present invention are: the present invention arranges the cutlery basket between the upper bowl basket and the lower bowl basket with a larger space, and directly utilizes the top spray arm to arrange a water collecting bin at the bottom thereof, and sprays water to different areas of the cutlery basket layer through the circumference and bottom of the water collecting bin, and sprays sheet water that can sweep a large area to the outer circle part, and sprays columnar water with stronger force to the inner circle part, so that cutlery with appropriate cleaning difficulty can be placed in the corresponding area, and the spraying intensity can be adjusted on the basis of multi-angle spraying to improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0018] Figure 2 It is an assembly diagram of the top spray arm and the water collection box in an embodiment of the present invention;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure from another angle;

[0020] Figure 4 for Figure 2 A cross-sectional view of

[0021] Figure 5 This is a diagram showing the coordination between the water collecting box and the impeller in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 5 As shown, the washing machine of this embodiment includes a housing 1, an upper basket 2, a lower basket 3, a bottom spray arm 4, and a top spray arm 5. The upper basket 2 and the lower basket 3 are arranged in the housing 1 with an upper and lower interval. The bottom spray arm 4 is rotatably provided under the lower basket 3 and is used for spraying and cleaning the tableware in the lower basket 3. The top spray arm 4 is rotatably provided at the bottom of the upper basket 2 and is used for spraying and cleaning the tableware in the upper basket 2.

[0024] There is a relatively large space between the upper bowl basket 2 and the lower bowl basket 3, in which a cutlery basket layer 6 is arranged. A downwardly extending water collecting bin 51 is arranged at the bottom of the top spray arm 5. A water outlet 511 extending circumferentially so as to spray toward the outer circle of the cutlery basket layer 6 in a sheet-like water trajectory is opened on the side of the water collecting bin 51. A water outlet hole 512 capable of spraying longitudinally toward the inner circle of the cutlery basket layer 6 is opened at the bottom of the water collecting bin 51.

[0025] Specifically, a cylindrical water collecting box 50 is provided under the top spray arm 5, and the interior of the water collecting box 50 is hollow to form a water collecting chamber 51. A water inlet 513 is provided on the bottom wall of the top spray arm 5 to connect it with the water collecting chamber 51, a water outlet 511 is provided on the side wall of the water collecting box 50, and a water outlet hole 512 is provided on the bottom wall of the water collecting box 50.

[0026] The water outlet 511 is a narrow opening extending along the circumference of the water collecting box 50, and there are two water outlets 511 symmetrically arranged on the outer peripheral wall of the water collecting box 50, so that a large-area sheet-like water track is formed through the water outlet 511 as the top spray arm 5 rotates, thereby improving the flushing effect on the tableware.

[0027] The water outlet holes 512 include a first water outlet hole 5121, a second water outlet hole 5122 and a third water outlet hole 5123. The first water outlet hole 5121 is a circular hole and is located at the central part of the bottom wall of the water collecting box 50. The second water outlet hole 5122 and the third water outlet hole 5123 are both rectangular holes and are symmetrically arranged on both sides of the first water outlet hole 5121. The second water outlet hole 5122 and the third water outlet hole 5123 are both arranged obliquely along the water flow direction and the oblique directions of the two are opposite. With the above structure, the three water outlet holes spray water columns in different directions and trajectories, which can increase the spray range, eliminate cleaning dead corners, and improve the cleaning effect of tableware.

[0028] The second water outlet 5122 is arranged near the first water outlet 511a, and the third water outlet 5123 is arranged near the second water outlet 511b. The second water outlet 5122 is inclined from the first water outlet 5121 to the first water outlet 511a on its adjacent side along the water flow direction, and the third water outlet 5123 is inclined along the water flow direction to the second water outlet 511b adjacent to it. From the cross section, the second water outlet 5122 and the third water outlet 5123 form a symmetrical "eight"-shaped structure with the first water outlet 5121 as the center. This structure is conducive to forming a spraying area with a relatively fixed range and trajectory through the second water outlet 5122 and the third water outlet 5123, thereby improving the cleaning effect of the area.

[0029] In this embodiment, the water collecting box 50 is provided with an impeller 7 that can rotate under the impact of water flow to alternately open and close the two water outlets 511, and when the first water outlet 511a is open and the second water outlet 511b is closed, the second water outlet 5122 remains open and the third water outlet 5123 remains closed or the flow rate is reduced; when the second water outlet 511b is open and the first water outlet 511a is closed, the third water outlet 5123 remains open and the second water outlet 5122 remains closed or the flow rate is reduced. The two water outlets are alternately opened and closed by the impeller 7, which is conducive to increasing the flow rate and pressure of the water wave sprayed from the water outlet and improving the cleaning effect. Since the impeller 7 floats up and down under the buoyancy of water, it is impossible for the impeller 7 to completely close the second water outlet 5122 and the third water outlet 5123 for a long time, but it is intermittently opened and closed or the flow rate of one is increased and the flow rate of the other is reduced. This structure can also alternately control the flow rate and pressure of the sprayed water column in different areas to improve the cleaning effect.

[0030] From a top view, the impeller 7 includes a first edge 72 formed in a semicircular shape and a second edge 73 formed in an S shape and connected end to end with the first edge 72. The impeller 7 is provided with a connecting shaft 73 extending vertically in the central part of the S-shaped second edge 72, and the lower end of the connecting shaft 73 is rotatably inserted in the first water outlet 5121. With the above structure, the S-shaped second edge 72 is conducive to driving the impeller 7 to rotate under the impact of water flow and reducing energy loss.

[0031] The outer peripheral wall corresponding to the first edge 71 of the impeller 7 of this embodiment is used to control the alternating opening and closing of the two water outlets 511 as it rotates, and the bottom wall of the impeller 7 controls the alternating opening and closing or flow rate adjustment of the second water outlet 5122 and the third water outlet 5123 as it rotates.

[0032] The outer diameter of the connecting shaft 73 is smaller than the inner diameter of the first water outlet 5121. In the assembled state, a gap 5120 for water to pass through is formed between the outer circumference of the connecting shaft 73 and the inner circumference of the first water outlet 5121. The lower end of the connecting shaft 73 is provided with a limit ring 731 that can be offset against the outer bottom wall of the water collecting box 50. During the cleaning process, the impeller 7 floats up and down under the buoyancy of the water and the power of the water spray, and a water-guiding gap 730 with automatically adjustable height is formed between the upper surface of the limit ring 731 and the lower surface of the water collecting box 50. With the above structure, during the spraying process, the size of the water-guiding gap 730 is automatically adjusted according to the water flow rate and the buoyancy of the water, thereby controlling the angle and strength of the sprayed water, expanding the cleaning range, and improving the cleaning effect.

[0033] In this embodiment, a water pump assembly 8 for water supply is provided at the bottom of the box body 1 , a first water outlet of the water pump assembly 8 is connected to the bottom spray arm 4 , and a second water outlet is connected to the top spray arm 5 through a water conduit 81 .

[0034] In this embodiment, the cutlery basket is arranged between the upper bowl basket 2 and the lower bowl basket 3 with a larger space, and the top spray arm 5 is directly used to set a water collecting bin 51 at its bottom. Water is sprayed to different areas of the cutlery basket layer 6 through the circumference and bottom of the water collecting bin 51, and sheet water that can sweep a large area is sprayed to the outer circle part, and columnar water with stronger force is sprayed to the inner circle part. Tableware with appropriate cleaning difficulty can be placed in the corresponding area. On the basis of multi-angle spraying, the spraying intensity can be adjusted to improve the cleaning effect.

[0035] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A washing machine, comprising a housing (1), an upper basket (2), a lower basket (3), a bottom spray arm (4), and a top spray arm (5), wherein the upper basket (2) and the lower basket (3) are arranged in the housing (1) with a vertical spacing, the bottom spray arm (4) is arranged below the lower basket (3) and is used for spraying and washing the tableware in the lower basket (3), and the top spray arm (5) is rotatably arranged at the bottom of the upper basket (2) and is used for spraying and washing the tableware in the upper basket (2), characterized in that: It also comprises a cutlery basket layer (6), the cutlery basket layer (6) being arranged between the upper bowl basket (2) and the lower bowl basket (3), the bottom of the top spray arm (5) being provided with a downwardly extending water collection bin (51), the side of the water collection bin (51) being provided with a water outlet (511) extending in a circumferential direction so as to spray toward the outer ring portion of the cutlery basket layer (6) in a sheet-shaped water track, and the bottom of the water collection bin (51) being provided with a water outlet hole (512) capable of spraying longitudinally toward the inner ring portion of the cutlery basket layer (6); A cylindrical water collecting box (50) is arranged below the top spray arm (5), the interior of the water collecting box (50) is hollow to form the water collecting bin (51), a water outlet (513) is provided on the bottom wall of the top spray arm (5) to connect it with the water collecting bin (51), the water outlet (511) is provided on the side wall of the water collecting box (50), and the water outlet hole (512) is provided on the bottom wall of the water collecting box (50); the water outlet (511) is in the form of a narrow and long opening extending along the circumference of the water collecting box (50), and there are two water outlets (511) symmetrically arranged on the outer peripheral wall of the water collecting box (50).

2. The cleaning machine according to claim 1, characterized in that: The water outlet holes (512) include a first water outlet hole (5121), a second water outlet hole (5122) and a third water outlet hole (5123); the first water outlet hole (5121) is a circular hole and is located at the central part of the bottom wall of the water collecting box (50); the second water outlet hole (5122) and the third water outlet hole (5123) are both rectangular holes and are symmetrically arranged on both sides of the first water outlet hole (5121); the second water outlet hole (5122) and the third water outlet hole (5123) are both arranged obliquely along the direction of water flow and their inclination directions are opposite.

3. The cleaning machine according to claim 2, characterized in that: The second water outlet hole (5122) is arranged close to the first water outlet (511), and the third water outlet hole (5123) is arranged close to the second water outlet (511). The second water outlet hole (5122) is inclined from the first water outlet hole (5121) to the water outlet (511) on the adjacent side along the water flow direction, and the third water outlet hole (5123) is inclined towards the water outlet (511) adjacent to the first water outlet hole (5121) in the direction of water flow. When viewed from a cross section, the second water outlet hole (5122) and the third water outlet hole (5123) form a symmetrical "eight"-shaped structure with the first water outlet hole (5121) as the center.

4. The cleaning machine according to claim 2, characterized in that: The water collecting box (50) is provided with an impeller (7) which can rotate under the impact of water flow so as to alternately open and close the two water outlets (511), and when the first water outlet is open and the second water outlet is closed, the second water outlet (5122) remains open and the third water outlet (5123) remains closed or the flow rate is reduced; when the second water outlet is open and the first water outlet is closed, the third water outlet (5123) remains open and the second water outlet (5122) remains closed or the flow rate is reduced.

5. The cleaning machine according to claim 4, characterized in that: When viewed from above, the impeller (7) includes a first edge (71) formed in a semicircular shape and a second edge (72) formed in an S shape and connected end to end with the first edge (71). The impeller (7) is provided with a connecting shaft (73) extending vertically in the central part of the S-shaped second edge (72), and the lower end of the connecting shaft (73) is rotatably inserted into the first water outlet (5121).

6. The cleaning machine according to claim 5, characterized in that: The outer diameter of the connecting shaft (73) is smaller than the inner diameter of the first water outlet hole (5121). In the assembled state, a gap (5120) for water to pass through is formed between the outer circumferential surface of the connecting shaft (73) and the inner circumferential surface of the first water outlet hole (5121). The lower end of the connecting shaft (73) is provided with a limiting ring (731) that can be abutted against the outer bottom wall of the water collecting box (50). During the cleaning process, the impeller (7) floats up and down under the buoyancy of water and the power of water spraying, and a water-conducting gap (730) with automatically adjustable height is formed between the upper surface of the limiting ring (731) and the lower surface of the water collecting box (50).

7. The cleaning machine according to claim 5, characterized in that: The outer peripheral wall corresponding to the first edge (71) of the impeller (7) is used to control the alternating opening and closing of the two water outlets (511) as it rotates, and the bottom wall of the impeller (7) is used to control the alternating opening and closing of the second water outlet hole (5122) and the third water outlet hole (5123) or the flow rate adjustment as it rotates.

8. The cleaning machine according to any one of claims 1 to 7, characterized in that: A water pump assembly (8) for supplying water is arranged at the bottom of the box body (1); a first water outlet of the water pump assembly is connected to the bottom spray arm (4), and a second water outlet is connected to the top spray arm (5) via a water guide pipe (81).

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