Washing appliance

Abstract

The application discloses a washing appliance, which comprises an inner container, an overflow channel, a drainage pump and a drainage channel. The inner container is internally formed with a washing cavity. One end of the overflow channel is provided with an overflow inlet, and the overflow inlet is communicated with the washing cavity. The drainage pump is connected with the washing cavity. One end of the drainage channel is connected with the drainage pump, and the drainage channel and the overflow channel are adapted to communicate with a water receiving space outside the washing appliance through the same water outlet channel. The overflow channel is provided with the overflow inlet communicated with the washing cavity of the inner container. When abnormal water inflow causes the water level of the washing cavity of the inner container to be higher than the overflow inlet, water will enter the overflow channel from the overflow inlet and be drained to the water receiving space, so that the water level of the washing cavity of the inner container is prevented from continuously rising and causing unpredictable losses.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a washing appliance. BACKGROUND

[0002] The washing appliance includes but is not limited to a dishwasher and a washing machine. When the washing appliance is working, a certain amount of water needs to be supplied into a washing cavity of an inner container. When the washing appliance fails, such as a water inlet valve fails, water will continuously be supplied, which will cause the water level to be too high and will cause unpredictable losses to the user. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, the present application provides a washing appliance.

[0004] To achieve the above-mentioned purpose, the present application discloses a washing appliance, which comprises:

[0005] an inner container, an inner part of the inner container forming a washing cavity; and

[0006] a water overflow channel, one end of the water overflow channel being provided with a water overflow inlet, the water overflow inlet and the washing cavity being in communication,

[0007] a drainage pump connected with the washing cavity; and

[0008] a drainage channel, one end of the drainage channel being connected with the drainage pump, and the drainage channel and the water overflow channel being adapted to communicate with a water receiving space outside the washing appliance through the same water outlet channel.

[0009] In some embodiments of the present application, the washing appliance further comprises a three-way pipe, a first interface of the three-way pipe being connected with the other end of the drainage channel, a second interface of the three-way pipe being connected with the other end of the water overflow channel, and a third interface of the three-way pipe being adapted to be connected with the water outlet channel.

[0010] In some embodiments of the present application, the washing appliance further comprises a one-way valve, the one-way valve being arranged between the water overflow channel and the three-way pipe, and the one-way valve being adapted to allow water to flow from the water overflow channel to the three-way pipe in one direction.

[0011] In some embodiments of the present application, the water overflow channel is provided with a water overflow outlet, the one-way valve comprises a valve ball, the valve ball being arranged between the water overflow outlet and the second interface and being reciprocally movable to a first position and a second position, the valve ball being adapted to close the water overflow outlet when being moved to the first position, and the valve ball being adapted to open the water overflow outlet and the second interface when being moved to the second position.

[0012] In some embodiments of the present application, the valve ball is adapted to abut against the periphery of the overflow outlet when moved to the first position to close the overflow outlet, and is adapted to disengage from the periphery of the overflow outlet when moved to the second position to open the overflow outlet.

[0013] And / or, the periphery of the second interface is provided with a support rib, the valve ball is adapted to abut against the support rib when moved to the second position to form a flow gap between the periphery of the second interface to open the second interface.

[0014] And / or, a receiving cavity for movement of the valve ball is formed between the overflow outlet and the second interface, the diameter of the receiving cavity is larger than the diameter of the valve ball, the diameter of the overflow outlet and the diameter of the second interface.

[0015] In some embodiments of the present application, the valve ball is adapted to be moved from the second position to the first position by the water pressure of the drainage channel when the drainage channel is draining water.

[0016] And / or, the valve ball is adapted to be moved from the first position to the second position by the water pressure of the overflow channel when the overflow channel is draining water.

[0017] And / or, the valve ball is adapted to be moved from the first position to the second position by the gravity.

[0018] In some embodiments of the present application, the overflow inlet is located in the washing cavity, and a portion of the overflow channel is upwardly protruding from the bottom plate of the inner tub and forms the overflow inlet.

[0019] In some embodiments of the present application, the overflow channel comprises a first channel segment and a second channel segment, the first channel segment is integrally formed with the bottom plate of the inner tub, and the second channel segment connects the first channel segment and the second interface of the three-way pipe.

[0020] In some embodiments of the present application, the washing appliance further comprises a spray arm seat, the spray arm seat is arranged in the washing cavity and connected with the bottom plate of the inner tub, and the spray arm seat is provided with the overflow inlet connected with the first channel segment.

[0021] In some embodiments of the present application, the washing appliance further comprises a water inlet valve, the washing appliance is adapted to inlet water through the water inlet valve, and the area of the minimum flow cross section of the water inlet valve is not greater than the area of the minimum flow cross section of the water path between the overflow inlet and the third interface.

[0022] The overflow channel of this application is equipped with an overflow inlet that communicates with the washing chamber of the inner tank. When abnormal water inflow causes the water level in the washing chamber of the inner tank to be higher than the overflow inlet, water will enter the overflow channel from the overflow inlet and be discharged to the water receiving space located outside the washing appliance, thus avoiding the water level in the washing chamber of the inner tank from rising continuously and causing unpredictable losses.

[0023] Other advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other designs can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 These are schematic diagrams of washing appliances in some embodiments;

[0026] Figure 2 This is an exploded view of a partial structure of the washing appliance in some embodiments;

[0027] Figure 3 for Figure 2 The washing appliance shown is viewed from below.

[0028] Figure 4 for Figure 2 A top view of the washing appliance shown;

[0029] Figure 5 for Figure 4 Sectional view of AA;

[0030] Figure 6 for Figure 5 Enlarged view marked B in the middle;

[0031] Figure 7 An exploded view of the second channel section of the tee pipe, check valve, and overflow channel in some embodiments;

[0032] Figure 8 This is a schematic diagram of drainage through a drainage channel in some embodiments;

[0033] Figure 9 This is a schematic diagram of drainage through an overflow channel in some embodiments.

[0034] Explanation of icon numbers:

[0035] Inner tank 1100, washing chamber 1110, bottom plate 1120, water inlet valve 1200, breather 1300, washing pump 1400, drain pump 1500, spray arm seat 1600, drain channel 2100, overflow channel 2200, first channel section 2210, second channel section 2220 (2200), overflow inlet 2230, overflow outlet 2240, accommodating cavity 2250, tee pipe 2300, first interface 2310, second interface 2320, support rib 2321, flow gap 2322, third interface 2330, water outlet channel 2400, valve ball 2510.

[0036] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0041] This application discloses a washing appliance, which in some embodiments combines... Figures 1 to 6 As shown, the washing appliance includes an inner tank 1100 and an overflow channel 2200. The inner tank 1100 has a washing chamber 1110 inside. One end of the overflow channel 2200 is provided with an overflow inlet 2230, which is connected to the washing chamber 1110. The other end of the overflow channel 2200 is adapted to connect with a water receiving space located outside the washing appliance.

[0042] The overflow channel 2200 is provided with an overflow inlet 2230 that communicates with the washing chamber 1110 of the inner tank 1100. When abnormal water inflow causes the water level in the washing chamber 1110 of the inner tank 1100 to be higher than the overflow inlet 2230, water will enter the overflow channel 2200 from the overflow inlet 2230 and be discharged to the water receiving space located outside the washing appliance, thus preventing the water level in the washing chamber 1110 of the inner tank 1100 from rising continuously and causing unpredictable losses.

[0043] Specifically, the inner tank 1100 has a washing chamber 1110 inside, which is a space for washing the target item. When the washing appliance is a dishwasher, the target item is tableware; when the washing appliance is a washing machine, the target item is clothing. When the washing appliance is working, a certain amount of water needs to be introduced into the washing chamber 1110 of the inner tank 1100. For example, the washing appliance is equipped with a water inlet valve 1200, which is connected to both a faucet and the washing chamber 1110 of the inner tank 1100. When the water inlet valve 1200 is opened, the water discharged from the faucet is delivered into the washing chamber 1110 of the inner tank 1100 through the water inlet valve 1200. When the preset water level is reached, the water inlet valve 1200 is controlled to close the water supply, and the water stops flowing from the faucet into the washing chamber 1110 of the inner tank 1100. It is understandable that the water inlet valve 1200 is not limited to being connected to a faucet, but can also be connected to a water tank. The water tank pre-stores a certain amount of water, and when the water inlet valve 1200 is opened, the water in the water tank is transported into the washing chamber 1110 of the inner tank 1100 through the water inlet valve 1200.

[0044] When an abnormal water inlet occurs, taking the inlet valve 1200 as an example, a malfunction in the inlet valve 1200 allows water to continuously enter the washing chamber 1110 of the inner tank 1100, causing the water level in the washing chamber 1110 to rise continuously. Generally, the washing chamber 1110 of the inner tank 1100 is set with several water levels corresponding to different operating conditions. When the water level in the washing chamber 1110 continues to rise, it can force open the door of the washing machine or cause continuous leakage between the door and the inner tank. This not only causes large-scale flooding in the environment where the washing machine is installed but also damages the internal structure of the washing machine, resulting in unpredictable losses.

[0045] The relevant technology will be equipped with a water level abnormality detection device. When the water level is too high, an alarm will be issued and the water inlet valve 1200 will be closed. However, if the water inlet valve 1200 is in a faulty state, it will not be able to close the water inlet valve 1200, and the water level in the washing chamber 1110 of the inner tank 1100 will continue to rise until the user notices it and manually turns off the faucet to solve the problem.

[0046] Therefore, this embodiment solves the problem caused by abnormal water ingress by setting an overflow channel 2200. One end of the overflow channel 2200 is provided with an overflow inlet 2230, which is connected to the washing chamber 1110. When the water level in the washing chamber 1110 of the inner tank 110 continues to rise and is higher than the overflow inlet 2230, water will enter the overflow channel 2200 from the overflow inlet 2230 and drain away along the overflow channel 2200. The other end of the overflow channel 2200 is adapted to connect with a water receiving space located outside the washing appliance. The water drained along the overflow channel 2200 eventually drains into the water receiving space, thus preventing the water level in the washing chamber 1110 of the inner tank 1100 from rising continuously.

[0047] It is understandable that washing appliances need water inlet during washing and water outlet after washing. In other words, after installation, the washing appliance needs to be connected to an external water inlet. During normal drainage, the washing appliance discharges water into this inlet. This embodiment utilizes this inlet, and water overflowing from the overflow channel 2200 also drains into it. The water inlet includes, but is not limited to, drains, water tanks, etc.

[0048] For example, the washing appliance also includes a drain pump 1500 and a drain channel 2100. The drain pump 1500 is connected to the washing chamber 1110, one end of the drain channel 2100 is connected to the drain pump 1500, and the other end of the drain channel 2100 is connected to the water receiving space.

[0049] During washing, clean water is introduced into the washing chamber 1110 of the inner tank 1100. Upon completion of the wash cycle, the water becomes dirty and needs to be drained. This is achieved through a drain pump 1500, which is connected to the washing chamber 1110. During normal drainage, the washing machine uses the drain pump 1500 to draw water from the washing chamber 1110 and discharge it into the drain channel 2100. The water then flows through the drain channel 2100 and is finally discharged into the water receiving space. If the washing machine experiences abnormal water ingress, water exceeding the overflow inlet 2230 will be discharged into the water receiving space through the overflow channel 2200.

[0050] Optionally, in some embodiments, the combination continues. Figures 1 to 6As shown, the drainage channel 2100 and the overflow channel 2200 are adapted to be connected to the water receiving space through the same water outlet channel 2400. In this way, the drainage channel 2100 and the overflow channel 2200 share the water outlet channel 2400, eliminating the need to set up separate water outlet channels 2400 for the drainage channel 2100 and the overflow channel 2200, which helps to simplify the structure.

[0051] The following explanation uses a dishwasher as an example. The dishwasher includes an inner tank 1100, a dish rack, a water inlet valve 1200, a washing pump 1400, a drain pump 1500, a spray arm, an overflow channel 2200, a drain channel 2100, and a water outlet channel 2400.

[0052] The inner tank 1100 has a washing chamber 1110 inside (i.e., the internal space of the inner tank 1100), and the inner tank 1100 has an opening communicating with the washing chamber 1110. The dishwasher door can move between an open position and a closed position. When the door moves to the closed position, the opening is closed; when the door moves to the open position, the opening is open. A dish rack is installed in the inner tank 1100 and can slide in and out of the washing chamber 1110 to facilitate loading and unloading of tableware. The dish rack is usually a perforated structure to allow water to flow through and rinse the tableware. Tableware refers to items that can be washed by the dishwasher, including but not limited to bowls, plates, cups, pots, knives, forks, and chopsticks. A water inlet valve 1200 is connected to a faucet. When the dishwasher is working, a certain amount of water needs to be supplied to the washing chamber 1110 of the inner tank 1100 through the water inlet valve 1200.

[0053] The spray arm is installed in the washing chamber 1110 and is used to spray water towards the washing chamber 1110. The water is directed at the dishes to rinse and clean them. That is, during the washing cycle of the dishwasher, water needs to be sprayed out through the spray arm to clean the dishes. There are various types of spray arms. The spray arm can be movable, moving while spraying water to enhance the rinsing of the dishes. The spray arm can also be fixed so that water can be sprayed at a fixed angle.

[0054] The spraying of water by the spray arm is achieved by the operation of the washing pump 1400. The washing pump 1400 is connected to the washing chamber 1110 of the inner tank 1100. The washing pump 1400 draws water from the washing chamber 1110 of the inner tank 1100 and delivers it to the spray arm. The water sprays out from the spray arm and rinses the tableware before falling back to the bottom of the inner tank 1100 and being drawn in by the washing pump 1400 again. This forms a washing cycle to achieve the rinsing and cleaning of the tableware.

[0055] After the washing cycle is complete, the washing appliance needs to drain the water. This is achieved by the operation of a drain pump 1500. The drain pump 1500 is connected to the washing chamber 1110 of the inner tank 1100. The drain pump 1500 draws water from the washing chamber 1110 and discharges it through the drain channel 2100. The drain channel 2100 is connected to the water outlet channel 2400, which is connected to the sewer. The water eventually flows into the sewer. It is understood that a breather 1300 is generally installed between the drain pump 1500 and the drain channel 2100. The water discharged by the drain pump 1500 first flows through the breather 1300, then through the drain channel 2100, and finally to the water outlet channel 2400.

[0056] The overflow inlet 2230 of the overflow channel 2200 is located in and connected to the washing chamber 1110. If the inlet valve 1200 malfunctions and causes the water level to rise, the water above the overflow inlet 2230 will enter the overflow channel 2200 through the overflow inlet 2230. The overflow channel 2200 is connected to the outlet channel 2400, and the water will eventually be discharged into the sewer through the outlet channel 2400.

[0057] To facilitate the connection of the overflow channel 2200 and the drainage channel 2100 to the same outlet channel 2400, in some embodiments, combined with Figures 1 to 9 As shown, the washing appliance also includes a three-way pipe 2300, the first port 2310 of the three-way pipe 2300 is connected to the other end of the drain channel 2100, the second port 2320 of the three-way pipe 2300 is connected to the other end of the overflow channel 2200, and the third port 2330 of the three-way pipe 2300 is adapted to be connected to the water outlet channel 2400.

[0058] The tee pipe 2300 has a first interface 2310, a second interface 2320, and a third interface 2330. The first interface 2310 is equivalent to the inlet of the tee pipe 2300, the second interface 2320 is also equivalent to the inlet of the tee pipe 2300, and the third interface 2330 is equivalent to the outlet of the tee pipe 2300. The drainage channel 2100 is connected to the first interface 2310, the overflow channel 2200 is connected to the second interface 2320, and the outlet channel 2400 is connected to the third interface 2330. The tee pipe 2300 allows the overflow channel 2200 and the drainage channel 2100 to share the same outlet channel 2400.

[0059] When the washing appliance is in normal water intake and after washing is completed, the drain pump 1500 draws water from the washing chamber 1110 and discharges it through the drain channel 2100. The water transported along the drain channel 2100 enters the three-way pipe 2300 through the first interface 2310 and is finally discharged from the third interface 2330 and discharged to the water receiving space through the water outlet channel 2400.

[0060] When the washing appliance experiences abnormal water intake, water above the overflow inlet 2230 enters the overflow channel 2200 through the overflow inlet 2230, then enters the three-way pipe 2300 through the second interface 2320, and finally exits from the third interface 2330 and flows into the water receiving space through the water outlet channel 2400.

[0061] It is understandable that when abnormal water intake is caused by inlet valve 1200, in order to avoid the water level from rising continuously, the water intake flow rate needs to be no greater than the drainage flow rate. Therefore, in some embodiments, the area of ​​the minimum flow cross section of inlet valve 1200 is no greater than the area of ​​the minimum flow cross section of the water passage between overflow inlet 2230 and third interface 2330. A larger flow cross section is more conducive to drainage.

[0062] It is understandable that the first port 2310, the second port 2320, and the third port 2330 of the three-way pipe 2300 are connected to each other. When draining water through the drain pump 1500, water enters through the first port 2310. Since the drain pump 1500 provides power for drainage, water may be discharged through the second port 2320 in addition to the third port 2330, and then flow in the opposite direction along the overflow channel 2200 into the washing chamber 1110 of the inner tank 1100. To avoid this situation, in some embodiments, the washing appliance also includes a one-way valve, which is located between the overflow channel 2200 and the three-way pipe 2300. The one-way valve is adapted to supply water to flow unidirectionally from the overflow channel 2200 towards the three-way pipe 2300.

[0063] When the washing appliance is in normal water intake and the washing cycle is finished, the drain pump 1500 draws water from the washing chamber 1110 and discharges it through the drain channel 2100. The water transported along the drain channel 2100 enters the three-way pipe 2300 through the first interface 2310. Since the drain pump 1500 provides power for drainage, when the water enters the three-way pipe 2300 from the first interface 2310, it may be discharged through the second interface 2320 and flow in the opposite direction to the washing chamber 1110 along the overflow channel 2200. To address this, a one-way valve is installed in the three-way pipe 2300 and the overflow channel 2200. The one-way valve is suitable for water to flow unidirectionally from the overflow channel 2200 to the three-way pipe 2300. In other words, when the drain pump 1500 drains water, if the water flows to the overflow channel 2200 through the second interface 2320, it will be blocked by the one-way valve. This ensures that the water can only be discharged from the third interface 2330 and discharged to the water receiving space through the outlet channel 2400.

[0064] When the washing appliance receives abnormal water, water in the washing chamber 1110 that is higher than the overflow inlet 2230 enters the overflow channel 2200 through the overflow inlet 2230, then flows through the one-way valve and through the second port 2320 into the three-way pipe 2300, and finally exits from the third port 2330 and flows into the water receiving space through the outlet channel 2400. It is understandable that the water entering the overflow channel 2200 from the overflow inlet 2230 flows under the influence of gravity. Therefore, when this water enters the three-way pipe 2300, since there is already a large amount of water in the washing chamber 1110, it is difficult for the water to flow backward through the first port 2310 back into the washing chamber 1110. In particular, when the washing appliance is a dishwasher, a breather 1300 is provided between the drain channel 2100 and the drain pump 1500. The breather 1300 is in a high position, which will also prevent water from flowing backward through the drain channel 2100 to the washing chamber 1110. Therefore, water will only be discharged from the third interface 2330 and then discharged to the water receiving space through the water outlet channel 2400.

[0065] In some embodiments, combined with Figures 7 to 9 As shown, the overflow channel 2200 is provided with an overflow outlet 2240. The one-way valve includes a valve ball 2510, which is located between the overflow outlet 2240 and the second interface 2320 and can reciprocate to a first position and a second position. The valve ball 2510 is adapted to close the overflow outlet 2240 when it is moved to the first position, and the valve ball 2510 is adapted to open the overflow outlet 2240 and the second interface 2320 when it is moved to the second position. The setting of the valve ball 2510 helps to simplify the structure of the one-way valve.

[0066] When the washing appliance is in normal water intake and the washing cycle is finished, the drain pump 1500 draws water from the washing chamber 1110 and discharges it through the drain channel 2100. The water transported along the drain channel 2100 enters the three-way pipe 2300 through the first interface 2310. The valve ball 2510 is in the first position and closes the overflow outlet 2240, thus interrupting the connection between the second interface 2320 and the overflow outlet 2240. If water flows through the second interface 2320 to the overflow channel 2200, it will be blocked by the valve ball 2510. Thus, the water can only be discharged from the third interface 2330 and discharged to the water receiving space through the water outlet channel 2400.

[0067] When the washing appliance is not properly filled with water, water in the washing chamber 1110 that is higher than the overflow inlet 2230 enters the overflow channel 2200 through the overflow inlet 2230. The valve ball 2510 is in the second position and opens the overflow outlet 2240 and the second port 2320. At this time, the overflow outlet 2240 and the second port 2320 are connected. Water can flow through the overflow outlet 2240 and the second port 2320 in sequence to enter the three-way pipe 2300, and finally be discharged from the third port 2330 and discharged to the water receiving space through the water outlet channel 2400.

[0068] Optionally, in some embodiments, combined with Figure 8 As shown, the valve ball 2510 is adapted to abut against the periphery of the overflow outlet 2240 when it is moved to the first position to close the overflow outlet 2240, and the valve ball 2510 is adapted to disengage from the periphery of the overflow outlet 2240 when it is moved to the second position to open the overflow outlet 2240, thus conveniently realizing the opening and closing of the overflow outlet 2240. It is understood that the periphery of the overflow outlet 2240 has a shape adapted to the valve ball 2510, and when the valve ball 2510 is in the first position, the valve ball 2510 abuts against the periphery of the overflow outlet 2240 to close the overflow outlet 2240.

[0069] Optionally, in some embodiments, combined with Figure 9 As shown, the second interface 2320 is provided with a support rib 2321 around its periphery. The valve ball 2510 is adapted to abut against the support rib 2321 when it moves to the second position, so as to form a flow gap 2322 between the periphery of the second interface 2320 and open the second interface 2320.

[0070] By setting a support rib 2321 around the second interface 2320, when the valve ball 2510 moves to the second position, it abuts against the support rib 2321. Due to the presence of the support rib 2321, the valve ball 2510 will not completely fit around the second interface 2320. Instead, there is a flow gap 2322 around the valve ball 2510 and the second interface 2320. The flow gap 2322 keeps the second interface 2320 in the open state, and the second interface 2320 and the overflow outlet 2240 are connected.

[0071] See Figures 7 to 9As shown, after the overflow channel 2200 and the second interface 2320 are connected, a receiving cavity 2250 for the movement of the valve ball 2510 is formed between the overflow outlet 2240 and the second interface 2320. The diameter of the receiving cavity 2250 is larger than the diameter of the valve ball 2510, the diameter of the overflow outlet 2240, and the diameter of the second interface 2320. When the valve ball 2510 moves from the first position to the second position, the valve ball 2510 gradually moves away from the overflow outlet 2240 until it abuts against the support rib 2321. At this time, the overflow outlet 2240 and the second interface 2320 are connected through the receiving cavity 2250. Water discharged from the overflow channel 2200 can enter the three-way pipe 2300 through the overflow outlet 2240, the receiving cavity 2250, and the second interface 2320, and then be discharged to the outlet channel 2400 through the third interface 2330. When the valve ball 2510 moves from the second position to the first position, the valve ball 2510 gradually moves away from the second interface 2320 until it comes into contact with the periphery of the overflow outlet 2240. At this time, the valve ball 2510 closes the overflow outlet 2240, and the overflow outlet 2240 and the second interface 2320 are disconnected. The water discharged from the drainage channel 2100 enters the three-way pipe 2300 through the first interface 2310, and then flows to the outlet channel 2400 through the third interface 2330.

[0072] In some embodiments, the valve ball 2510 is adapted to move from a second position to a first position under the action of water pressure in the drain channel 2100 when draining water.

[0073] Assuming the initial state of the valve ball 2510 is in the second position, when the washing appliance draws water from the washing chamber 1110 via the drain pump 1500 and discharges it through the drain channel 2100, the water transported along the drain channel 2100 enters the three-way pipe 2300 through the first interface 2310. A portion of the water flows towards the overflow channel 2200 through the second interface 2320. Since the valve ball 2510 is positioned between the second interface 2320 and the overflow outlet 2240, the water pressure in the drain channel 2100 is transmitted to the valve ball 2510, pushing it from the second position to the first position. This causes the valve ball 2510 to close the overflow outlet 2240, thereby preventing this portion of water from flowing back into the washing chamber 1110 through the overflow channel 2200. This configuration eliminates the need for additional power components to control the movement of the valve ball 2510, simplifying the structure and improving reliability.

[0074] In some embodiments, the valve ball 2510 is adapted to move from a first position to a second position under the action of water pressure in the overflow channel 2200 when the overflow channel 2200 is drained.

[0075] Assuming the initial state of the valve ball 2510 is in the first position, when the water level in the washing chamber 1110 is too high and overflows through the overflow channel 2200, the water is transported along the overflow channel 2200. When the water flows through the valve ball 2510, it will exert force on the valve ball 2510, thereby pushing the valve ball 2510 from the first position to the second position. The valve ball 2510 opens the overflow outlet 2240 and the second interface 2320. The water can enter the three-way pipe 2300 from the second interface 2320 and then be discharged to the outlet channel 2400 through the third interface 2330. There is no need to set up an additional power component to control the movement of the valve ball 2510, which helps to simplify the structure and improve reliability.

[0076] Alternatively, the valve ball 2510 can be adapted to move from the first position to the second position under the action of gravity. With this configuration, the valve ball 2510 can be held in the second position by gravity in the initial state.

[0077] The washing appliance draws water from the washing chamber 1110 through the drain pump 1500 and discharges it through the drain channel 2100. The water transported along the drain channel 2100 enters the three-way pipe 2300 through the first interface 2310, and a portion of the water flows out through the second interface 2320, thereby pushing the valve ball 2510 from the second position to the first position. When the valve ball 2510 moves to the first position, it abuts against the periphery of the overflow outlet 2240, thereby closing the overflow outlet 2240 and preventing water from flowing back into the washing chamber 1110 through the overflow channel 2200. After the drain pump 1500 finishes draining, the water pressure applied to the valve ball 2510 disappears, and the valve ball 2510 moves from the second position to the first position under the action of gravity.

[0078] When the washing appliance is not properly filled with water, water in the washing chamber 1110 that is higher than the overflow inlet 2230 enters the overflow channel 2200 through the overflow inlet 2230. Since the valve ball 2510 is in the second position at this time, that is, the overflow outlet 2240 and the second interface 2320 are connected. Therefore, the water discharged along the overflow channel 2200 flows through the overflow outlet 2240 and the second interface 2320 into the three-way pipe 2300, and then flows through the third interface 2330 to the outlet channel 2400.

[0079] In some embodiments, combined with Figures 1 to 6As shown, the overflow inlet 2230 is located inside the washing chamber 1110. A portion of the overflow channel 2200 protrudes upward from the bottom plate 1120 of the inner tank 1100 and forms the overflow inlet 2230. As mentioned above, the preset water level of the washing chamber 1110 of the inner tank 1100 has a certain height. Therefore, the overflow inlet 2230 needs to be set at a certain height to allow water with an excessively high water level to enter the overflow channel 2200. By having the overflow channel 2200 protrude upward from the bottom plate 1120 of the inner tank 1100 and form the overflow inlet 2230, it is convenient to set the overflow inlet 2230 at a certain height. When a portion of the overflow channel 2200 protrudes upward from the bottom plate 1120 of the inner liner 1100, the remaining portion of the overflow channel 2200 is located below the bottom plate 1120 of the inner liner 1100. There is sufficient space below the bottom plate 1120 of the inner liner 1100 to accommodate the remaining portion of the overflow channel 2200, and there is also sufficient space below the bottom plate 1120 of the inner liner 1100 to accommodate the drain pump 1500, the drain channel 2100, and the tee pipe 2300, facilitating the connection between these components.

[0080] In some embodiments, combined with Figure 6 As shown, the overflow channel 2200 includes a first channel section 2210 and a second channel section 2220. The first channel section 2210 and the bottom plate 1120 of the inner liner 1100 are integrally formed. The second channel section 2220 connects the first channel section 2210 and the second interface 2320 of the three-way pipe 2300.

[0081] The overflow channel 2200 includes a first channel section 2210 and a second channel section 2220 connected to each other, which helps to diversify the shape of the overflow channel 2200 and meet different layout requirements.

[0082] Generally, the bottom plate 1120 of the inner liner 1100 is relatively thin. If an opening is made in the bottom plate 1120 of the inner liner 1100 and the overflow channel 2200 is installed into that opening, leakage is likely to occur between the overflow channel 2200 and the opening. Therefore, in this embodiment, the overflow channel 2200 includes a first channel section 2210 and a second channel section 2220. The first channel section 2210 and the bottom plate 1120 of the inner liner 1100 are integrally formed, which helps to simplify the structure and prevent leakage. One end of the second channel section 2220 is connected to the first channel section 2210, and the sealing between the second channel section 2220 and the first channel section 2210 is relatively easier and less prone to leakage. With this arrangement, water higher than the overflow inlet 2230 first flows into the first channel section 2210 through the overflow inlet 2230, and then flows to the tee pipe 2300 through the second channel section 2220.

[0083] Optionally, in some embodiments, combined with Figure 6As shown, one end of the second channel segment 2220 is plugged into the first channel segment 2210, and the other end of the second channel segment 2220 is threaded into the second interface 2320 of the tee pipe 2300. The threaded connection between the second channel segment 2220 and the tee pipe 2300 helps to strengthen the connection, allowing the second channel segment 2220 and the tee pipe 2300 to form a modular structure. Furthermore, the plugged connection between the second channel segment 2220 and the first channel segment 2210 simplifies the connection process, thus balancing the connection and installation between the second channel segment 2220, the first channel segment 2210, and the tee pipe 2300.

[0084] In some embodiments, combined with Figures 2 to 6 As shown, the washing appliance also includes a spray arm seat 1600, which is located in the washing chamber 1110 and connected to the bottom plate 1120 of the inner tank 1100. The spray arm seat 1600 is provided with an overflow inlet 2230 connected to the first channel section 2210.

[0085] In this embodiment, the washing appliance is a dishwasher, and the spray arm needs to be connected to the spray arm base 1600. The spray arm base 1600 is equipped with an overflow inlet 2230, making full use of the spray arm base 1600 to simplify the structure. Once the spray arm base 1600 is installed, the overflow inlet 2230 and the first channel section 2210 are connected accordingly. Water entering from the overflow inlet 2230 flows sequentially through the first channel section 2210 and the second channel section 2220 before finally draining into the water receiving space.

[0086] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A washing appliance, characterized in that, include: The inner liner (1100) has a washing chamber (1110) formed inside it; An overflow channel (2200) is provided at one end, and an overflow inlet (2230) is provided at the other end, the overflow inlet (2230) being connected to the washing chamber (1110). A drain pump (1500) is connected to the washing chamber (1110); and A drain channel (2100) is provided, one end of which is connected to the drain pump (1500), and the drain channel (2100) and the overflow channel (2200) are adapted to connect to the external water receiving space of the washing appliance through the same water outlet channel (2400).

2. The washing appliance as described in claim 1, characterized in that, The washing appliance also includes a three-way pipe (2300), the first port (2310) of the three-way pipe (2300) is connected to the other end of the drain channel (2100), the second port (2320) of the three-way pipe (2300) is connected to the other end of the overflow channel (2200), and the third port (2330) of the three-way pipe (2300) is adapted to be connected to the water outlet channel (2400).

3. The washing appliance as described in claim 2, characterized in that, The washing appliance also includes a one-way valve, which is located between the overflow channel (2200) and the three-way pipe (2300). The one-way valve is adapted to supply water to flow unidirectionally from the overflow channel (2200) toward the three-way pipe (2300).

4. The washing appliance as described in claim 3, characterized in that, The overflow channel (2200) is provided with an overflow outlet (2240), and the one-way valve includes a valve ball (2510). The valve ball (2510) is located between the overflow outlet (2240) and the second interface (2320) and can reciprocate to a first position and a second position. The valve ball (2510) is adapted to close the overflow outlet (2240) when it is moved to the first position, and the valve ball (2510) is adapted to open the overflow outlet (2240) and the second interface (2320) when it is moved to the second position.

5. The washing appliance as described in claim 4, characterized in that, The valve ball (2510) is adapted to abut against the periphery of the overflow outlet (2240) when moved to the first position to close the overflow outlet (2240), and the valve ball (2510) is adapted to disengage from the periphery of the overflow outlet (2240) when moved to the second position to open the overflow outlet (2240). And / or, the second interface (2320) is provided with a support rib (2321) around its periphery, and the valve ball (2510) is adapted to abut against the support rib (2321) when it is moved to the second position, so as to form a flow gap (2322) between itself and the periphery of the second interface (2320) to open the second interface (2320); And / or, a receiving cavity (2250) for the movement of the valve ball (2510) is formed between the overflow outlet (2240) and the second interface (2320), the diameter of the receiving cavity (2250) being larger than the diameter of the valve ball (2510), the diameter of the overflow outlet (2240), and the diameter of the second interface (2320).

6. The washing appliance as described in claim 4, characterized in that, The valve ball (2510) is adapted to move from the second position to the first position under the water pressure of the drainage channel (2100) when the drainage channel (2100) is draining; And / or, the valve ball (2510) is adapted to move from the first position to the second position under the water pressure of the overflow channel (2200) when the overflow channel (2200) is drained; And / or, the valve ball (2510) is adapted to move from the first position to the second position under the influence of gravity.

7. The washing appliance as described in claim 2, characterized in that, The overflow inlet (2230) is located inside the washing chamber (1110), and a portion of the overflow channel (2200) protrudes upward from the bottom plate (1120) of the inner tank (1100) and forms the overflow inlet (2230).

8. The washing appliance as described in claim 7, characterized in that, The overflow channel (2200) includes a first channel section (2210) and a second channel section (2220). The first channel section (2210) and the bottom plate (1120) of the inner liner (1100) are integrally formed. The second channel section (2220) connects the first channel section (2210) and the second interface (2320) of the three-way pipe (2300).

9. The washing appliance as described in claim 8, characterized in that, The washing appliance also includes a spray arm seat (1600), which is located in the washing chamber (1110) and connected to the bottom plate (1120) of the inner tank (1100). The spray arm seat (1600) is provided with an overflow inlet (2230) connected to the first channel section (2210).

10. The washing appliance as described in claim 2, characterized in that, The washing appliance also includes a water inlet valve (1200), which is adapted to take in water through the water inlet valve (1200). The area of ​​the minimum flow cross section of the water inlet valve (1200) is not greater than the area of ​​the minimum flow cross section of the water passage between the overflow inlet (2230) and the third interface (2330).

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