Cleaning machine

Abstract

The utility model relates to a cleaning machine which comprises a water supply pipe provided with a water supply port; the first spraying assembly is used for spraying articles in the cleaning machine; the water pump is used for pumping water at the bottom of the cleaning machine to the water supply pipe; the water supply port has two working states: in the first working state, the water supply port is communicated with the first spraying assembly and conveys water to the first spraying assembly; in the second working state, the water supply opening is disconnected from the first spraying assembly, and the water supply opening serves as a spraying opening to spray objects in the cleaning machine; the circulation area of the outlet of the water pump communicated with the water supply pipe is S1, the circulation area of the water supply opening in the water supply pipe is S2, the total circulation area of the spraying outlets of the first spraying assembly is S3, S2 is larger than or equal to S1, and S3 is larger than or equal to S1. The structure can keep a stable flow state when the water supply port of the water supply pipe is connected or disconnected with the spraying arm, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a washing machine used for washing tableware, fruits and vegetables. Background Art

[0002] The sink-type cleaning machine uses a sink to define a washing chamber and adopts an upward-flipping door structure.

[0003] For example, the applicant's prior patent ZL 202321042974.7 "A water tank cleaning machine" discloses a structure, which includes a water tank with a accommodating cavity and a top opening connected to the accommodating cavity; a spray arm is arranged in the accommodating cavity of the water tank and connected to the first water supply channel; and a door body is provided on the top of the water tank.

[0004] Sink-style washing machines typically place a bowl basket near the bottom of the washing chamber, with a spray arm positioned at the bottom of the basket, spraying upward to rinse the dishes in the basket. This structure prevents efficient use of the space above the washing chamber, limiting the number of dishes that can be washed. Furthermore, if an upper basket and upper spray arm are placed above the lower basket, the upper spray arm must be disconnected from the water supply pipe when the upper basket is not in use. This disconnection makes it difficult to maintain a stable flow at the outlet of the water supply pipe. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a cleaning machine which can maintain a stable flow state whether the water supply port of the water supply pipe is connected or disconnected with the spray arm in view of the current status of the prior art.

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

[0007] A cleaning machine comprising:

[0008] a water supply pipe provided with a water supply port;

[0009] A first spray assembly is used to spray items in the cleaning machine;

[0010] a water pump provided with a first water outlet connected to the water supply pipe;

[0011] The water supply port has two working states: in a first working state, the water supply port is connected to the first spray assembly and supplies water to it; in a second working state, the water supply port is disconnected from the first spray assembly and serves as a nozzle to spray items in the washing machine;

[0012] The flow area of the first water outlet is S1, the flow area of the water supply port on the water supply pipe is S2, and the total flow area of the spray outlet of the first spray assembly is S3, then S2>=S1, S3>=S1.

[0013] Preferably, S2 / S1=1-2, S3 / S1=1-1.5, both inclusive. Within this range, good stability and spraying effect can be achieved before and after switching between the two working states.

[0014] More preferably, S2 / S1=1.1-2; S3 / S1=1.1-1.5.

[0015] Preferably, S2 / S3=1.1-1.5, and the total flow area from the water supply pipe to the first spray assembly is appropriately reduced, which can improve the water outlet speed and cleaning effect.

[0016] Preferably, the cleaning machine further includes a second spray assembly, and the water pump is further provided with a second water outlet, and the second water outlet is connected to the water inlet of the second spray assembly.

[0017] Preferably, the cleaning machine further comprises a cleaning chamber, a bowl basket and a shelf, the bowl basket being arranged in the cleaning chamber, the second spray assembly being arranged under the bowl basket, the shelf being flippable in the cleaning chamber, the first spray assembly being arranged on the shelf, and when the shelf is flipped to a state where it is arranged horizontally above the bowl basket, the first spray assembly is arranged horizontally as the shelf is flipped and is connected to the water supply port, and when the shelf is flipped to a state where it is vertically stored in the side of the bowl basket, the first spray assembly is arranged vertically as the shelf is flipped and is disconnected from the water supply port.

[0018] Preferably, when the first spray assembly is in the stored state, the water supply port forms a spray structure that sprays toward the side of the bowl basket.

[0019] The utility model is provided with a reversible and movable shelf. When the shelf is placed horizontally, it can be used to place tableware to be washed, thereby increasing the amount of tableware to be washed. When the shelf is stored vertically at the side of the bowl basket, it does not affect the original tableware storage capacity of the bowl basket, and can also accommodate large-sized tableware that is higher than the bowl basket. When the shelf is in use, the first spray assembly sprays above the shelf to wash the tableware on the shelf. When the shelf is not in use, the water supply port of the water supply pipe forms a spray structure that sprays toward the side of the bowl basket, which can achieve directional spraying, which is beneficial for eliminating blind spots in cleaning or strengthening the cleaning of localized tableware, thereby improving the cleaning effect.

[0020] Preferably, the water pump is a centrifugal water pump, disposed at the bottom of the cleaning chamber. The water pump comprises a disc-shaped pump casing, the sidewalls of which spirally extend outwardly in the circumferential direction to form a first flow channel corresponding to the second water outlet, and a second flow channel corresponding to the first water outlet. A centrifugal impeller is disposed within the pump casing, and a water inlet is defined in the center of the bottom wall of the pump casing. This structure facilitates dual water supply using a single centrifugal, open-type water pump.

[0021] Preferably, the upper end of the water supply pipe is connected to a side spray arm. Such a structure is adopted to further eliminate cleaning dead corners.

[0022] Preferably, the sidewalls of the bowl basket are U-shaped, semi-enclosed structures, and the shelf, when stored in the side of the bowl basket, covers the open portion of the semi-enclosed structure. This structure not only facilitates smooth flipping of the shelf, but also blocks the tableware in the bowl basket when stored, without taking up additional space, achieving two goals at once.

[0023] Preferably, the bottom edge of the bowl basket is partially recessed inward to form a notch for positioning one end of the first spray assembly. When the shelf is flipped over and stored vertically on the side of the bowl basket, the notch retains one end of the first spray assembly, thereby maintaining the first spray assembly in a vertically extended position. This structure positions the first spray assembly when the shelf is stored, preventing it from rotating and interfering with the tableware in the bowl basket.

[0024] Preferably, the open edge of the U-shaped semi-enclosed structure of the bowl basket is provided with a first vertically extending guide opening. Accordingly, the side edge of the shelf is provided with a second guide opening extending along its length. A guide member is provided between the first and second guide openings to allow for sliding engagement during shelf flipping. This structure allows the shelf to be stably flipped using the edge of the bowl basket as support.

[0025] Preferably, the cleaning chamber has an upward opening so that items to be washed can be placed from above. This form is commonly found in sink-type dishwashers, in which case the cleaning chamber is a sink.

[0026] Compared with the existing technology, the advantages of the present invention are: the present invention ensures that the water supply port has a stable flow state under both spraying conditions by limiting the relationship between the first water outlet area of the water pump supplying water to the water supply pipe, the area of the water supply port on the water supply pipe and the water outlet area of the first spray assembly, that is, when the water supply port is connected to the first spray assembly to supply water to the latter, and when the water supply port is not connected to the first spray assembly and independently realizes directional enhanced flushing, it has a stable flow state, thereby maintaining stable operation of the water flow system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is a partial structural diagram of an embodiment of the present utility model (excluding the cleaning chamber and the shelf storage state);

[0028] Figure 2 This is a diagram showing the coordination of the bowl basket, shelf, and first spray assembly according to an embodiment of the present invention (shelf in use);

[0029] Figure 3 This is a diagram showing the coordination of the bowl basket, shelf, and first spray assembly according to an embodiment of the present invention (shelf storage state);

[0030] Figure 4 for Figure 3 Exploded view of

[0031] Figure 5 This is a diagram showing the coordination of the water supply pipe, water pump, and first spray assembly in an embodiment of the present utility model. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0033] like Figures 1 to 5 As shown, the cleaning machine of this embodiment includes a water supply pipe 7, a first spray assembly and a water pump 6. The water supply pipe 7 is provided with a water supply port 71; the first spray assembly is used to spray items in the cleaning machine (such as bowls, plates, pots and other tableware); the water pump 6 is used to pump water from the bottom of the cleaning machine to the water supply pipe 7.

[0034] The water supply port 71 has two working states: in the first working state, the water supply port 71 is connected to the first spray assembly and supplies water to it; in the second working state, the water supply port 71 is disconnected from the first spray assembly, and the water supply port 71 serves as a nozzle to spray the items in the cleaning machine.

[0035] The flow area of the first water outlet 62 of the water pump 6 connected to the water supply pipe 7 is S1, the flow area of the water supply port 71 on the water supply pipe 7 is S2, and the total flow area of the spray outlet of the first spray assembly is S3, then S2>=S1, S3>=S1. In order to adjust the upper spray flow rate on demand, conventional water pumps usually design S1 and S2 to be larger than S3, so that the "bottleneck" (minimum diameter) of the entire water path is at the spray outlet. This type of system can operate well in a system with only the aforementioned first working state and has high adaptability (for example, by adjusting the spray arm opening S3 to achieve different water outlet ratios for the upper and lower layers). However, after entering the aforementioned second working state, the spray outlet area switches from S3 to S2. When S3≠S2, the flow rate will fluctuate greatly, which may lead to reduced pump efficiency or increased noise. For water pumps with multiple water outlets, it will also affect the stability of the flow in other water paths, causing the water pump diversion ratio to deviate from the original design, resulting in greater vibration and noise.

[0036] In this embodiment, the relationship between the flow area S1 of the first water outlet 62 of the water pump 6 that supplies water to the water supply pipe 7, the flow area S2 of the water supply port 71 on the water supply pipe 7, and the total flow area S3 of the spray outlet of the first spray assembly is limited, so that the "bottleneck" of the entire water circuit is at the first water outlet 62 of the water pump 6, that is, in both working states, the minimum diameter of the water circuit is the flow area S1 of the first water outlet 62 of the water pump 6, so that the water discharge flow and head of the water pump are basically not affected by the downstream S2 and S3, thereby ensuring the stability of the water pump operating condition. Therefore, a stable flow state can be maintained in both states of whether the water supply port 71 of the water supply pipe 7 is connected or disconnected with the spray arm, thereby improving the cleaning effect and reducing noise.

[0037] Specifically, the washing machine of this embodiment includes a washing chamber (not shown in the figure), a bowl basket 1, a second spray assembly 2 (usually a main spray arm), the bowl basket 1 is arranged at the lower part of the washing chamber, the second spray assembly 2 is arranged under the bowl basket 1 and sprays upward, and also includes a rack 3 and the aforementioned first spray assembly 4 (usually a secondary spray arm) arranged at the bottom of the rack 3; the rack 3 is arranged in the washing chamber in a flippable manner. When the rack 3 is flipped to a state where it is horizontally arranged above the bowl basket 1, the first spray assembly 4 can be arranged below or above the bottom surface of the rack 3, and can be arranged horizontally as the rack 3 is flipped and spray water to the tableware in the rack 3 above it. When the rack 3 is flipped to a state where it is vertically stored on the side of the bowl basket 1 (referred to as the storage state), the first spray assembly 4 is arranged vertically as the rack 3 is flipped and is disconnected from the water source. The inner wall of the cleaning chamber is provided with a water supply pipe 7 for supplying water to the first spray assembly 4. The side wall of the water supply pipe 7 is provided with a water supply port 71. When the first spray assembly 4 is in the storage state, a spraying structure is formed at the water supply port 71 to spray toward the side of the bowl basket 1.

[0038] This embodiment features a reversible rack 3. When placed horizontally, it can be used to place dishes to be washed, increasing the amount of dishes that can be cleaned. When stored vertically on the side of the bowl basket 1, the rack 3 does not affect the existing dishware storage capacity of the bowl basket 1. When the rack 3 is in use, the first spray assembly 4 sprays toward the rack 3, cleaning the dishes on it. When the rack 3 is not in use, the water supply port 71 of the water supply pipe 7 forms a spray structure that sprays toward the side of the bowl basket 1, achieving directional spraying. This helps eliminate blind spots in cleaning, or enhances the cleaning of specific dishes (such as pots), improving the cleaning effect.

[0039] A water pump 6 is provided at the bottom of the cleaning chamber, connected to the cleaning chamber. The water pump 6 is provided with a second water outlet 61 and a first water outlet 62. The second water outlet 61 is connected to the water inlet of the second spray assembly 2, and the first water outlet 62 is connected to the lower end of the water supply pipe 7. The water pump 6 is a centrifugal water pump, comprising a disc-shaped pump casing. The sidewalls of the pump casing spirally extend outward along the circumference to form a first flow channel corresponding to the second water outlet and a second flow channel corresponding to the first water outlet. The pump casing is provided with a centrifugal impeller, and the water pump inlet is provided in the center of the bottom wall of the pump casing. The above structure facilitates the use of a single centrifugal open water pump to achieve a two-way water supply.

[0040] The flow area of the first water outlet 62 is S1 = 89 mm 2 The area of the water supply port 71 on the water supply pipe 7 is S2 = 183 mm 2 The total area of the spray outlet of the first spray assembly 4 is S3 = 133mm 2 , S2 / S1=2.0, S3 / S1=1.5, S2 / S3=1.4. This structure ensures that the water supply port 71 maintains a stable flow pattern in both spraying states. That is, when the water supply port 71 is connected to the first spray assembly 4 to supply water to the latter, or when the water supply port 71 is not connected to the first spray assembly 4 and independently implements variable-lift wide-area waterfall directional flushing, the flow pattern remains stable, thereby maintaining stable operation of the water flow system.

[0041] The upper end of the water supply pipe 7 is connected to a side spray arm 9, and such a structure is adopted to further eliminate the blind spots in cleaning. The water supply port 71 of the water supply pipe 7 is connected to the first spray assembly 4 through the water guide pipe 8.

[0042] In this embodiment, the sidewalls of the bowl basket 1 form a U-shaped semi-enclosed structure. When the shelf 3 is stored in the side of the bowl basket 1, it covers the opening 11 of the semi-enclosed structure. This structure not only facilitates the smooth rotation of the shelf 3, but also blocks the tableware in the bowl basket 1 when stored, without taking up additional space, achieving two goals at once.

[0043] When shelf 3 is flipped vertically and stored on the side of basket 1, it forms a side wall that blocks the opening 11 of the U-shaped semi-enclosed structure of basket 1. When shelf 3 is flipped horizontally and placed above basket 1, it is used to place dishes waiting to be washed. This structure allows shelf 3 to block the dishes in basket 1 when storing them; when shelf 3 is placed horizontally, it can expand the dishware placement area to meet the user's more washing needs.

[0044] The bottom edge of the bowl basket 1 is partially recessed inward to form a notch 12 for positioning one end of the first spray assembly 4. When the shelf 3 is flipped and stored vertically on the side of the bowl basket 1, the notch 12 retains one end of the first spray assembly 4, maintaining its vertical extension. This structure positions the first spray assembly 4 when the shelf 3 is stored, preventing it from rotating and interfering with the tableware in the bowl basket 1.

[0045] The edge of the opening 11 of the U-shaped semi-enclosed structure of the bowl basket 1 is provided with a vertically extending first guide opening 10. Correspondingly, the side edge of the shelf 3 is provided with a second guide opening 20 extending along its length. A guide member 5 is provided between the first guide opening 10 and the second guide opening 20 to allow for sliding engagement during the rotation of the shelf 3. This structure allows the shelf 3 to be stably rotated, supported by the edge of the bowl basket 1.

[0046] In the specification and claims of the present invention, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine comprising: a water supply pipe (7) provided with a water supply port (71); A first spray assembly is used to spray items in the cleaning machine; a water pump (6) provided with a first water outlet (62) in communication with the water supply pipe (7); Its characteristics are: The water supply port (71) has two working states: in a first working state, the water supply port (71) is connected to the first spray assembly and supplies water thereto; in a second working state, the water supply port (71) is disconnected from the first spray assembly and the water supply port (71) serves as a nozzle to spray items in the washing machine; The flow area of the first water outlet (62) is S1, the flow area of the water supply port (71) on the water supply pipe (7) is S2, and the total flow area of the spray outlet of the first spray assembly is S3, then S2>=S1, S3>=S1.

2. The cleaning machine according to claim 1, characterized in that: S2 / S1=1~2, S3 / S1=1~1.

5.

3. The cleaning machine according to claim 1, characterized in that: S2 / S3=1.1~1.

5.

4. The cleaning machine according to any one of claims 1 to 3, characterized in that: It also includes a second spray assembly (2), and the water pump (6) is further provided with a second water outlet (61), and the second water outlet (61) is connected to the water inlet of the second spray assembly (2).

5. The cleaning machine according to claim 4, characterized in that: The invention also comprises a washing chamber, a bowl basket (1) and a shelf (3), wherein the bowl basket (1) is arranged in the washing chamber, the second spray assembly (2) is arranged below the bowl basket (1), the shelf (3) is arranged in the washing chamber in a flippable manner, and the first spray assembly (4) is arranged on the shelf (3). When the shelf (3) is flipped to a state where it is arranged horizontally on the bowl basket (1), the first spray assembly (4) is arranged horizontally along with the flipping of the shelf (3) and is connected to the water supply port (71). When the shelf (3) is flipped to a state where it is vertically stored on the side of the bowl basket (1), the first spray assembly (4) is arranged vertically along with the flipping of the shelf (3) and is disconnected from the water supply port (71).

6. The cleaning machine according to claim 5, characterized in that: When the first spray assembly (4) is in the stored state, the water supply port (71) forms a spraying structure that sprays toward the side of the bowl basket (1).

7. The cleaning machine according to claim 5, characterized in that: The side wall of the bowl basket (1) is a U-shaped semi-enclosed structure, and the shelf (3) covers the opening (11) of the semi-enclosed structure when it is stored in the side of the bowl basket (1).

8. The cleaning machine according to claim 5, characterized in that: The bottom edge of the bowl basket (1) is partially concave inward to form a notch (12) for positioning one end of the first spray assembly (4); when the shelf (3) is flipped over to be vertically stored on the side of the bowl basket (1), the notch (12) holds one end of the first spray assembly (4) therein, thereby keeping the first spray assembly (4) in a vertically extended state.

9. The cleaning machine according to claim 7, characterized in that: The edge of the opening (11) of the U-shaped semi-enclosed structure of the bowl basket (1) is provided with a first guide opening (10) extending vertically, and correspondingly, the side edge of the shelf (3) is provided with a second guide opening (20) extending along its length direction, and a guide member (5) is provided between the first guide opening (10) and the second guide opening (20) to enable the two to slide and fit together during the turning process of the shelf (3).

10. The cleaning machine according to any one of claims 1 to 3, characterized in that: The washing machine has an upward opening so that articles to be washed can be placed from above.

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