Drainage assembly and dish washing machine

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to a drainage assembly and a dish washing machine. The drainage assembly comprises a water cup assembly used for being connected with an inner container of the dish washing machine, and the water cup assembly comprises a base plate and a water cup arranged on the base plate; a mounting interface is formed in the water cup, and a draining pump is connected to the mounting interface; the check valve is arranged on the base plate, and a water inlet of the check valve is communicated with a water drainage opening of the water drainage pump through a water diversion pipe; the check valve can be opened during drainage; and the outer drainage pipe is communicated with a water outlet of the check valve. The check valve can cut off a passage between the water conduit and the drain pipe, so that the inside and the outside of the dish-washing machine are isolated, water is prevented from flowing back into the liner, and insects or impurities are prevented from entering the liner. In addition, the water cup and the check valve are integrated on the same base plate, and the drainage pump is integrated on the water cup, so that the drainage assembly is compact in structure and small in occupied space.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a drainage component and a dishwasher. Background Technology

[0002] Most dishwashers use a top-drainage system to ensure the water level inside during the washing and rinsing process. However, this top-drainage mechanism means that after the dishwasher drains, residual water inside the raised drain pipe will flow back into the dishwasher. Furthermore, since the drain pipe is connected to the sewer, bacteria and insects can enter the dishwasher through the drain pipe and contaminate the internal environment and the placed tableware. Utility Model Content

[0003] The purpose of this invention is to provide a drainage component and a dishwasher, so as to solve to a certain extent the technical problems existing in the prior art, where after the dishwasher drains, residual water inside the raised drain pipe flows back into the dishwasher, and the drain pipe is connected to the sewer, allowing bacteria and insects to enter the dishwasher through the drain pipe and contaminate the internal environment and the placed tableware.

[0004] This utility model provides a drainage assembly, including: a water cup assembly for connecting to the inner tub of a dishwasher, the water cup assembly including a base plate and a water cup disposed on the base plate; the water cup is provided with an installation interface, and a drain pump is connected to the installation interface; a check valve disposed on the base plate, the inlet of the check valve and the outlet of the drain pump being connected through a water inlet pipe; the check valve being able to open during drainage; and an external drain pipe connected to the outlet of the check valve.

[0005] Furthermore, the drain pump and the check valve are located on the same side of the water cup.

[0006] Furthermore, the check valve includes a valve body with an installation cavity inside. Along the length of the valve body, an inlet and an outlet are respectively provided at both ends. The opening direction of the drain outlet, the length direction of the water inlet pipe, and the opening direction of the inlet are the same.

[0007] Furthermore, the valve body includes a main body and a rear cover connected to each other, the mounting cavity is formed inside the main body, the water inlet is disposed in the main body, and the water outlet is disposed in the rear cover; the check valve also includes a valve core rotatably disposed in the mounting cavity, the valve core having a flow channel; sealing rings are provided between the two sides of the valve core and the main body and the rear cover respectively; the check valve also includes a first motor, the first motor being drivenly connected to the valve core via a rotating shaft.

[0008] Furthermore, the check valve also includes a positioning shaft connected to the valve core, and a limiting member is provided on the positioning shaft; the positioning shaft is rotatably connected to the main body, and a first mating member and a second mating member are provided at intervals on the main body along the trajectory of the limiting member following the rotation of the positioning shaft; when the limiting member contacts the first mating member, the two ends of the flow channel are respectively connected to the inlet and the outlet; when the limiting member contacts the second mating member, the two ends of the flow channel are respectively misaligned with the inlet and the outlet.

[0009] Furthermore, the distance from the center of the drain outlet to the substrate is less than or equal to the distance from the center of the inlet to the substrate.

[0010] This utility model provides a dishwasher, including an inner tub and the aforementioned drainage assembly, wherein the drainage assembly is disposed at the bottom of the inner tub.

[0011] Furthermore, the dishwasher also includes an ozone generator; the water cup assembly also includes a water distribution cavity disposed on the substrate; the water distribution cavity is connected to each water pipe of the inner tank; the ozone generator is connected to the water distribution cavity.

[0012] Furthermore, the dishwasher also includes a UV lamp disposed within the inner tub.

[0013] Furthermore, the dishwasher also includes a heating fan and an exhaust assembly disposed within the inner tub; the exhaust assembly includes a fan, an air inlet, an air outlet, and an air duct; the air duct connects the air inlet and the air outlet, and the fan is connected to the air duct; the air inlet is connected to the inner cavity of the inner tub, and the air outlet is used to connect to the outside of the inner tub.

[0014] Compared with the prior art, the main advantages of this utility model are:

[0015] The drainage assembly can be located at the bottom of the inner tub. Wastewater inside the dishwasher collects in a water cup. After being drained by the drain pump, it flows out through the inlet pipe, check valve assembly, and drain pipe. During drainage, the check valve opens, opening the passage between the inlet and drain pipes. When the drain pump stops working and drainage is complete, the check valve closes, cutting off the passage between the inlet and drain pipes, isolating the inside and outside of the dishwasher and preventing water from flowing back into the inner tub, thus preventing insects or impurities from entering the inner tub. Furthermore, the water cup and check valve are integrated on the same base plate, and the drain pump is integrated into the water cup, allowing for a compact drainage assembly structure that occupies less space.

[0016] It should be understood that both the foregoing general description and the following detailed description are for illustrative purposes and do not necessarily limit the scope of this disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this disclosure. Furthermore, the specification and drawings serve to explain the principles of this disclosure. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a drainage component according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 The front view of the drainage assembly shown;

[0020] Figure 3 for Figure 1 An exploded view of the drainage assembly shown.

[0021] Figure 4 for Figure 1 The diagram shows the structure of the drainage assembly with the check valve in the open position.

[0022] Figure 5 for Figure 1 The cross-sectional view of the drainage assembly with the check valve in the open position is shown.

[0023] Figure 6 for Figure 1 The diagram shows the structure of the drainage assembly with the check valve in the closed state.

[0024] Figure 7 for Figure 1 The cross-sectional view of the drainage assembly with the check valve in the closed state is shown.

[0025] Figure 8 This is a schematic diagram of the drainage component according to another embodiment of the present invention;

[0026] Figure 9 for Figure 7 An exploded view of the drainage assembly shown.

[0027] Figure 10 for Figure 7 A cross-sectional view of the drainage assembly shown;

[0028] Figure 11This is a first-view structural schematic diagram of the dishwasher according to an embodiment of the present utility model;

[0029] Figure 12 for Figure 11 The diagram shown is a second-view structural schematic of the dishwasher.

[0030] Figure 13 for Figure 11 The diagram shows a third-person view of the dishwasher's structure.

[0031] Figure 14 for Figure 11 The diagram shows the structure of the ozone generator and drainage assembly in the dishwasher.

[0032] Icon: 100 - Drainage component;

[0033] 120 - Water cup assembly; 121 - Water cup; 122 - Water distribution cavity; 123 - Base plate; 124 - Connecting part;

[0034] 130-Check valve; 131-Valve body; 1301-Main body; 1302-Rear cover; 132-Inlet; 133-Outlet; 134-Valve core; 135-Flow channel; 136-First motor; 137-Rotating shaft; 138-Positioning shaft; 139-Limiting component; 1310-First mating component; 1311-Second mating component; 1312-Check valve rubber; 1313-Pull rod; 1314-Eccentric shaft; 1315-Reset spring; 1316-Check valve cover; 1317-Check valve positioning shaft; 1318-Second motor; 1319-Motor cover; 1320-First limiting platform; 1321-Second limiting platform; 1322-Power chamber; 1323-Water circuit on / off chamber; 1324-Eccentric shaft hook;

[0035] 140 - Water pipe;

[0036] 150 - Installation interface;

[0037] 160 - Drainage pump;

[0038] 170 - External drain pipe;

[0039] 180-Respirator;

[0040] 200-Inner Liner;

[0041] 300-Ozone Generator;

[0042] 400-UV lamp;

[0043] 500-Heating blower;

[0044] 600 - Exhaust assembly; 610 - Fan; 620 - Air inlet; 630 - Air outlet; 640 - Air duct; 700 - Water pipe. Detailed Implementation

[0045] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0046] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0047] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0048] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0051] like Figures 1 to 10As shown, this utility model provides a drainage assembly 100, including: a water cup assembly 120 for connecting to the inner tub 200 of a dishwasher, the water cup assembly including a base plate 123 and a water cup 121 disposed on the base plate 123; the water cup 121 is provided with an installation interface 150, and a drain pump 160 is connected to the installation interface 150; a check valve 130 disposed on the base plate 123, the inlet 132 of the check valve 130 and the outlet of the drain pump 160 are connected through a water inlet pipe 140; the check valve 130 can switch between an open state and a closed state, the check valve 130 can open when draining, and the check valve 130 switches to a closed state after draining is completed; and an external drain pipe 170 connected to the outlet 133 of the check valve 130.

[0052] In this embodiment, the drainage assembly 100 can be located at the bottom of the inner tub 200. Wastewater inside the dishwasher collects in the water cup 121. After being drained by the drain pump 160, it is discharged through the inlet pipe 140, the check valve 130 assembly, and the drain pipe. During drainage, the check valve 130 opens, opening the passage between the inlet pipe 140 and the drain pipe. When the drain pump 160 stops working and drainage is completed, the check valve 130 closes, cutting off the passage between the inlet pipe 140 and the drain pipe, isolating the inside and outside of the dishwasher, preventing water from flowing back into the inner tub 200, and preventing insects or impurities from entering the inner tub 200. In addition, the water cup 121 and the check valve 130 are integrated on the same substrate 123, and the drain pump 160 is integrated on the water cup 121, which makes the structure of the drainage assembly 100 compact and occupies less space.

[0053] Specifically, such as Figure 1 and Figure 8 As shown, the drainage assembly 100 also includes a breather 180, which is connected to the drain pipe. After the drain pump 160 provides drainage power, the wastewater from the dishwasher passes through the inlet pipe 140, the check valve 130 and the drain pipe in sequence, and is finally discharged from the outer drain pipe 170 through the breather 180.

[0054] The base plate 123 may include a connecting portion 124, and the check valve 130 may be disposed on the connecting portion 124.

[0055] The mounting interface 150 can be located on a different side of the water cup 121 from the check valve 130, that is, the drain pump 160 and the stop valve are located on different sides of the water cup 121.

[0056] As an alternative, such as Figure 1 and Figure 8 As shown, the drain pump 160 and the check valve 130 are located on the same side of the water cup 121. This arrangement can shorten the length of the water inlet pipe 140, thereby reducing the residual water content.

[0057] As an alternative, such as Figure 4 As shown, the check valve 130 includes a valve body 131, which has an installation cavity. Along the length of the valve body 131, the two ends of the valve body 131 are respectively provided with an inlet 132 and an outlet 133. The opening direction of the drain outlet, the length direction of the water pipe 140 and the opening direction of the inlet 132 are the same.

[0058] In this embodiment, the opening direction of the drain outlet, the length direction of the water inlet pipe 140, and the opening direction of the water inlet 132 are the same. The water inlet pipe 140 can be arranged in a straight line, which can further shorten the length of the water inlet pipe 140 and further reduce the residual water content.

[0059] The valve core 134 can be either cylindrical or spherical.

[0060] Based on the above embodiments, the check valve 130 can have various structural forms, such as: Figures 8 to 10As shown, the check valve 130 also includes a check rubber 1312, a pull rod 1313, and a check valve cover 1316. The check rubber 1312 serves both to cut off water flow and prevent leakage. After the valve body 131 and the check valve cover 1316 are assembled, they press the ring at the opening of the check rubber 1312, dividing the inner cavity of the check valve 130 into two linked but dry-wet separated areas: a water flow on / off chamber 1323 and a power chamber 1322. The dry power chamber 1322 increases the durability of moving parts and improves product stability. The check rubber 1312 has a pull rod 1313 inside, which prevents water flow. Rubber 1312 extends and retracts with pull rod 1313 to achieve the function of opening and closing the water passage. A return spring 1315 is installed between pull rod 1313 and check valve cover 1316 to provide extension power for the check rubber 1312. The check valve cover 1316 has an eccentric shaft 1314 on the outside and a check positioning shaft 1317 and a micro switch on the inside. The check positioning shaft 1317 and the micro switch are fastened together with motor cover 1319. The check positioning shaft 1317 has a first limiting platform 1320 and a second limiting platform 1321. The first limiting platform 1320 and the second limiting platform 1311... 21. Each time the microswitch is triggered, it sends a signal to the control terminal indicating the working state of the check valve 130. The second motor 1318 is installed on the outside of the motor cover 1319 to provide power to the check valve 130. The eccentric shaft 1314 is equipped with an eccentric shaft hook 1324, and the pull rod 1313 is equipped with a pull rod 1313 ring. The pull rod 1313 ring and the eccentric shaft hook 1324 are fastened together. The second motor 1318 controls the check positioning shaft 1317 to drive the eccentric shaft 1314 to rotate, and the eccentric shaft hook 1324 drags the pull rod 1313 ring. When the eccentric shaft hook 1314 is activated, the check valve 1314 is activated. When the eccentric shaft hook 1324 moves to the furthest distance from the water inlet, the first limit stage 1320 triggers the micro switch, and the second motor 1318 stops moving. At this time, the pull rod 1313 pulls open the check rubber 1312, and the check valve 130 enters the unobstructed state. When the eccentric shaft hook 1324 moves to the closest distance from the water inlet, the second limit stage 1321 triggers the micro switch, and the second motor 1318 stops moving. At this time, under the elastic force of the return spring 1315, the pull rod 1313 pushes the check rubber 1312 to seal the water inlet, and the check valve 130 enters the closed state.

[0061] As an alternative, such as Figures 1 to 7 As shown, the valve body 131 includes a main body 1301 and a rear cover 1302 connected to each other. An installation cavity is formed inside the main body 1301. An inlet 132 is provided on the main body 1301, and an outlet 133 is provided on the rear cover 1302. The check valve 130 also includes a valve core 134 rotatably disposed in the installation cavity. The valve core 134 is provided with a flow channel 135. Sealing rings are provided between the two sides of the valve core 134 and the main body and the rear cover 1302, respectively. The check valve 130 also includes a first motor 136, which is connected to the valve core 134 through a rotating shaft 137.

[0062] In this embodiment, the side of the main body 1301 connected to the rear cover 1302 is open to facilitate the installation of the valve core 134. After the rear cover 1302 is connected to the main body 1301, the valve core 134 is fixed in the mounting cavity. Sealing rings are provided on both sides of the valve core 134 to ensure the sealing of the check valve 130. The first motor 136 drives the valve core 134 to rotate, so that the two ends of the flow channel 135 of the valve core 134 are directly aligned with the inlet 132 and the outlet 133, respectively, thereby connecting the inlet 132 and the outlet 133, and the check valve 130 is in the open state. The first motor 136 drives the valve core 134 to rotate through the rotating shaft 137, so that the two ends of the flow channel 135 are completely misaligned with the inlet 132 and the outlet 133, that is, the valve core 134 blocks the inlet 132 and the outlet 133, and the check valve 130 is in the closed state. The check valve 130 provided in this embodiment has a simple structure.

[0063] The working state of the check valve 130 can be switched by controlling the rotation angle of the first motor 136. For example, the first motor 136 is a dual-band motor, and the control terminal uses two different signals to control the forward and reverse rotation of the first motor 136 respectively. The valve core 134 degrees can rotate to realize the opening and closing of the check valve 130 component. The rotation angle that the first motor 136 can rotate is slightly greater than 90 degrees. In this way, the limit rod will first achieve mechanical stop with each rotation, so that the rotation angle of the ball valve is perfectly controlled within the working range.

[0064] As an alternative, such as Figures 3 to 7 As shown, the check valve 130 also includes a positioning shaft 138 connected to the valve core 134, and a limiting member 139 is provided on the positioning shaft 138; the positioning shaft 138 is rotatably connected to the main body 1301, and the limiting member 139 is provided on the positioning shaft 138; on the trajectory of the limiting member 139 following the rotation of the positioning shaft 138, the main body 1301 is provided with a first mating member 1310 and a second mating member 1311 at intervals; when the limiting member 139 contacts the first mating member 1310, the two ends of the flow channel 135 are connected to the inlet 132 and the outlet 133 respectively; when the limiting member 139 contacts the second mating member 1311, the two ends of the flow channel 135 are misaligned with the inlet 132 and the outlet 133 respectively.

[0065] In this embodiment, the positioning shaft 138 can rotate with the valve core 134, and the limiting member 139 can rotate with the valve core 134. During the rotation of the valve core 134, when the first mating member 1310 and the second mating member 1311 come into contact with the connecting member, they can prevent the valve core 134 from continuing to rotate. In this way, the limiting member 139 will first achieve mechanical stop each time it rotates, so that the rotation angle of the valve core 134 moves within the working range.

[0066] The positioning shaft 138 can be partially disposed outside the valve body 131, and the limiting component 139 (which can be a limiting plate, limiting block, or limiting frame, etc.) is disposed on the portion of the positioning shaft 138 located outside the valve body 131, which facilitates machining and assembly. The first mating component 1310 and the second mating component 1311 can both be plate-shaped or block-shaped bodies disposed outside the valve body 131.

[0067] Based on any of the above embodiments, the distance from the center of the drain outlet to the substrate 123 is less than or equal to the distance from the center of the inlet 132 to the substrate 123, thereby preventing residual water in the water pipe 140 from flowing back into the water cup 121 and reducing the risk of secondary contamination of the water cup 121 and the filtration system.

[0068] like Figures 11 to 13 As shown, an embodiment of the present invention also provides a dishwasher, including an inner tank 200 and a drainage component 100 of any of the above-mentioned technical solutions, and thus has all the beneficial technical effects of the drainage component 100, which will not be repeated here.

[0069] like Figure 14 As shown, based on the above embodiments, the dishwasher further includes an ozone generator 300; the water cup assembly also includes a water distribution cavity 122 disposed on the substrate 123; the mounting interface 150 is disposed on the water cup 121, and the water distribution cavity 122 is connected to each water pipe 700 of the inner tank 200; the ozone generator 300 is connected to the water distribution cavity 122.

[0070] In this embodiment, the water distribution chamber 122 controls the opening and closing of each water path of the dishwasher and is connected to all water paths inside the dishwasher. The ozone generator 300 directly fills the water distribution chamber 122 with ozone through the ozone input pipe. The ozone can enter each water pipe 700 through the water distribution chamber 122, thereby enabling the water pipe 700 to be sterilized more directly and effectively.

[0071] like Figures 11 to 13 As shown, based on the above embodiment, the dishwasher further includes an ultraviolet lamp 400 disposed inside the inner tub 200.

[0072] In this implementation, the ultraviolet lamp is a dual-wavelength ultraviolet lamp tube. One wavelength provides ultraviolet light directly to the inside of the dishwasher to disinfect the tableware and the internal space. The other wavelength is between 200-290 nanometers. In this wavelength range, ultraviolet light can not only meet the requirements of direct irradiation and sterilization, but also convert oxygen into ozone, which can further disinfect the inner tank 200.

[0073] like Figures 11 to 13As shown, based on the above embodiment, the dishwasher further includes a heating fan 500 and an exhaust assembly 600 disposed within the inner tub 200; the exhaust assembly 600 includes a fan 610, an air inlet 620, an air outlet 630, and an air duct 640; the air duct 640 connects the air inlet 620 and the air outlet 630, and the fan 610 is connected to the air duct 640; the air inlet 620 is connected to the inner cavity of the inner tub 200, and the air outlet 630 is used to connect to the outside of the inner tub 200.

[0074] In this embodiment, after the check valve 130 closes, the heating fan 500 and fan 610 start, and the high-temperature circulating air rapidly heats the inside of the dishwasher's inner tub 200. Residual water forms water vapor in the high-temperature environment, which enters the air inlet 620 of the air duct 640 and is discharged from the inner tub 200 through the air outlet 630, creating a dry space inside the dishwasher and reducing bacterial growth. Furthermore, the ozone source installed below the base is far from the heating fan 500 module, slowing down the time required for high-temperature ozone decomposition and allowing for a longer sterilization period.

[0075] When the dishwasher includes an ozone generator 300, a UV lamp 400, a heating fan 500, and an exhaust assembly 600, after the check valve 130 closes, the heating fan 500 and the fan 610 start. The high-temperature circulating air rapidly heats the interior of the dishwasher's inner tub 200. Residual water forms moisture in the high-temperature environment, enters the air inlet 620 of the air duct 640, and is discharged from the inner tub 200 through the air outlet 630, creating a dry space inside the dishwasher. After the inner tub 200 and the dishes inside the dishwasher are dry, the fan 610 turns off, and the UV lamp turns on. The UV lamp is a dual-wavelength lamp; one wavelength provides only UV light, directly irradiating the inside of the dishwasher to disinfect the dishes and the interior space, while the other wavelength is between 200- Between 290 nanometers, ultraviolet light in this wavelength range not only achieves direct sterilization but also converts oxygen into ozone. The high-temperature airflow generated by the heating fan 500 circulates within the inner tank 200, with the high temperature assisting in the sterilization of bacteria inside the inner tank 200 and on the tableware. Furthermore, ozone circulates with the high-temperature airflow throughout the dishwasher, penetrating the blind spots of the inner tank 200, the filtration system, and the water system that are inaccessible to ultraviolet light. The combined effect of ozone and high temperature ensures that bacteria in all invisible areas of the dishwasher are thoroughly inactivated. As a result, the inside of the dishwasher is thoroughly sterilized and isolated from the external environment. The dry and sterile space allows for long-term storage of tableware, increasing the bacterial growth cycle and eliminating the need for frequent activation of the storage program, thus significantly reducing energy consumption.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Numerous specific details are set forth in the specification provided herein. However, it is understood that embodiments of this utility model can be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of this utility model and form different embodiments.

Claims

1. A drainage assembly, characterized in that, include: A water cup assembly (120) for connection to the inner liner (200) of a dishwasher, the water cup assembly including a base plate (123) and a water cup (121) disposed on the base plate (123); The water cup (121) is provided with an installation interface (150), and a drain pump (160) is connected to the installation interface (150); A check valve (130) is provided on the base plate (123). The inlet (132) of the check valve (130) and the outlet of the drain pump (160) are connected through a water inlet pipe (140). The check valve (130) can be opened when draining water. The external drain pipe (170) is connected to the outlet (133) of the check valve (130).

2. The drainage assembly according to claim 1, characterized in that, The drain pump (160) and the check valve (130) are located on the same side of the water cup (121).

3. The drainage assembly according to claim 2, characterized in that, The check valve (130) includes a valve body (131), which has an installation cavity. In the length direction of the valve body (131), the two ends of the valve body (131) are respectively provided with an inlet (132) and an outlet (133). The opening direction of the drain outlet, the length direction of the water inlet pipe (140), and the opening direction of the water inlet (132) are the same.

4. The drainage assembly according to claim 3, characterized in that, The valve body (131) includes a main body (1301) and a rear cover (1302) connected to each other. The mounting cavity is formed inside the main body (1301). The water inlet (132) is disposed on the main body, and the water outlet (133) is disposed on the rear cover (1302). The check valve (130) also includes a valve core (134) rotatably disposed in the mounting cavity, the valve core (134) having a flow channel (135); sealing rings are provided between the two sides of the valve core (134) and the main body (1301) and the rear cover (1302) respectively; The check valve (130) also includes a first motor (136), which is connected to the valve core (134) via a rotating shaft (137).

5. The drainage assembly according to claim 4, characterized in that, The check valve (130) also includes a positioning shaft (1317) connected to the valve core (134), and a limiting member (139) is provided on the positioning shaft (1317); The positioning shaft (1317) is rotatably connected to the main body (1301). On the trajectory of the positioning member (139) following the rotation of the positioning shaft (1317), the main body (1301) is provided with a first mating member (1310) and a second mating member (1311) at intervals. When the limiting member (139) contacts the first mating member (1310), the two ends of the flow channel (135) are respectively connected to the inlet (132) and the outlet (133). When the limiting member (139) contacts the second mating member (1311), the two ends of the flow channel (135) are respectively misaligned with the inlet (132) and the outlet (133).

6. The drainage assembly according to claim 1, characterized in that, The distance from the center of the drain outlet to the substrate (123) is less than or equal to the distance from the center of the inlet (132) to the substrate (123).

7. A dishwasher, characterized in that, It includes an inner liner (200) and a drainage assembly as described in any one of claims 1-6, the drainage assembly being disposed at the bottom of the inner liner (200).

8. The dishwasher according to claim 7, characterized in that, The dishwasher also includes an ozone generator (300); The water cup assembly also includes a water distribution cavity (122) disposed on the substrate (123); the water distribution cavity (122) is connected to each water pipe (700) of the inner liner (200); the ozone generator (300) is connected to the water distribution cavity (122).

9. The dishwasher according to claim 7, characterized in that, The dishwasher also includes an ultraviolet lamp (400) disposed inside the inner tank (200).

10. The dishwasher according to claim 7, characterized in that, The dishwasher also includes a heating fan (500) and an exhaust assembly (600) disposed within the inner tank (200); the exhaust assembly (600) includes a fan (610), an air inlet (620), an air outlet (630), and an air duct (640); the air duct (640) connects the air inlet (620) and the air outlet (630), and the fan (610) is connected to the air duct (640); The air inlet (620) is connected to the inner cavity of the inner liner (200), and the air outlet (630) is used to connect to the outside of the inner liner (200).

Images