A detergent dispensing mechanism for a dishwasher, a door structure, and a dishwasher

Abstract

The present application relates to a kind of detergent dispensing mechanism for dishwasher, door body structure and dishwasher, detergent dispensing mechanism, including shell, the shell inside has the independent cavity for accommodating solid dishwashing agent and the cavity for accommodating liquid dishwashing agent, the shell is equipped with the feed port and discharge port, and the cavity is fluidly communicated, and the shell is also equipped with the feed port and discharge port being communicated with the cavity of accommodating;The discharge port is adjacent to discharge port setting.This same water column or the number of water column less can flush liquid dishwashing agent and solid dishwashing agent simultaneously, can reduce the number of flushing water column, and the discharge port of liquid dishwashing agent and the discharge port of solid dishwashing agent are set more compact, so it is advantageous to water column and concentrated flushing, it is convenient to flush clean detergent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dishwashers, in particular to a detergent feeding mechanism for a dishwasher, a door structure and a dishwasher. BACKGROUND

[0002] Dishwashers have the advantages of good cleaning effect, ability to disinfect tableware, time and labor saving, etc., and therefore are used more and more widely. At present, dishwashers mostly use dishwashing powder as cleaning agent. A dispenser is arranged on the door body of the dishwasher. After the user opens the door body, the dishwashing powder is placed in the dispenser. During the washing stage of the dishwasher, the dispenser timely feeds the dishwashing powder into the washing chamber of the dishwasher. Some products have a rinse agent storage cavity. The dispenser can feed the rinse agent in the rinse agent storage cavity into the washing chamber of the dishwasher during the rinsing stage of the dishwasher, so that the tableware is brighter.

[0003] For example, a dishwasher dispenser and dishwasher are disclosed in Chinese Utility Model Patent No. CN202220216487.7 (Publication No. CN216876292U). The dishwasher comprises a dishwasher body, a door body and a dishwasher dispenser. A cleaning cavity is formed between the dishwasher body and the door body. The dishwasher dispenser is installed on the side of the door body facing the cleaning cavity. The dishwasher dispenser comprises a support shell and a driving mechanism. The support shell is provided with a washing liquid chamber capable of storing washing liquid, a dishwashing powder chamber capable of storing dishwashing powder and a rinse agent chamber capable of storing rinse agent. The driving mechanism is arranged on the support shell. The driving mechanism can feed the washing liquid in the washing liquid chamber, the dishwashing powder in the dishwashing powder chamber and the rinse agent in the rinse agent chamber into the cleaning cavity of the dishwasher, respectively.

[0004] However, the above-mentioned dispenser has the following defects. As can be seen from the drawings, the washing liquid chamber, the dishwashing powder chamber and the rinse agent chamber are arranged side by side. Because the outlets of the washing liquid, the dishwashing powder and the rinse agent are distributed relatively dispersedly, multiple water columns are needed to flush after the washing liquid, the dishwashing powder and the rinse agent flow out of the respective chambers, and it is not conducive to flushing the washing liquid, the dishwashing powder and the rinse agent clean. SUMMARY

[0005] The first technical problem to be solved by the present application is to provide a detergent feeding mechanism for a dishwasher, in which the discharge ports of solid dishwashing agent and the discharge ports of liquid dishwashing agent are distributed centrally to facilitate flushing, in view of the status quo of the prior art.

[0006] The second technical problem to be solved by the present application is to provide a door structure for a dishwasher using the above-mentioned detergent feeding mechanism, in view of the status quo of the prior art.

[0007] The third technical problem to be solved by the present application is to provide a dishwasher using the above-mentioned door structure, in view of the status quo of the prior art.

[0008] The technical scheme adopted by the present application to solve the first technical problem is as follows: a detergent feeding mechanism for a dishwasher, comprising

[0009] a shell, which has a containing cavity for containing solid detergent and a chamber for containing liquid detergent inside the shell, the shell is provided with a feeding port and a discharging port, which are both in fluid communication with the chamber, and the shell is also provided with a feeding port and a discharging port, which are in communication with the containing cavity; characterized in that the discharging port is arranged adjacent to the discharging port.

[0010] In order to further facilitate the flushing of the detergent, the discharging port is located above the discharging port of the containing cavity, so that the liquid detergent flows towards the containing cavity under the action of gravity, facilitating the flushing of the water column, and the water column sprayed into the discharging port flows towards the containing cavity together with the liquid detergent, so as to facilitate the flushing of the solid and liquid detergents.

[0011] Preferably, the feeding port is located above the discharging port, so as to facilitate the sealing of the feeding port by the cover plate below, preventing the liquid detergent from flowing out of the feeding port.

[0012] Preferably, the vertical distance between the discharging port and the discharging port is less than 15mm, so as to ensure that the same water column or a small number of water columns can flush the discharging port and the discharging port at the same time.

[0013] In order to facilitate the suction of the liquid detergent from the feeding port into the chamber and the flow of the liquid detergent from the discharging port, a pump body is further installed on the shell, the liquid inlet of the pump body is in fluid communication with the chamber, and the liquid outlet of the pump body is in fluid communication with the chamber and the discharging port.

[0014] Preferably, in the state that the pump body stops working, the liquid outlet of the pump body is closed, so that the detergent located upstream of the liquid outlet of the pump body is blocked by the liquid outlet and cannot flow towards the discharging port, which can prevent a large amount of liquid detergent from flowing out of the discharging port at a non-feeding time.

[0015] Preferably, the discharging port is hollow inside and has an inner diameter of 4mm to 7mm, so that the inner diameter of the discharging port is large enough to allow the detergent to flow out smoothly at the feeding time, avoiding the residue of the detergent from flowing out of the discharging port at the non-feeding time.

[0016] In order to prevent the liquid detergent from flowing out of the discharging port at a non-feeding time, a first one-way valve is arranged in the discharging port, which allows only the one-way flow of the liquid detergent in the discharging port, and the first one-way valve closes the discharging port in a natural state.

[0017] The first one-way valve can have various structural forms. In a simple structure, a central ring is arranged at the central part of the discharge port, and the spacing between the outer peripheral wall of the central ring and the wall surface of the discharge port forms a discharge passage. The first one-way valve comprises a mounting column inserted in the central ring and a baffle arranged at one end of the mounting column. The baffle closes the discharge passage in a natural state, and can be deformed to open the discharge passage under the impact of fluid. When it is not the time of dispensing, the baffle closes the discharge passage, and the liquid dishwashing agent cannot flow out of the discharge passage. When it is the time of dispensing, the pump body works, the liquid dishwashing agent impacts the baffle to deform the baffle, opens the discharge passage, and the liquid dishwashing agent flows out of the discharge passage.

[0018] In order to ensure that the liquid dishwashing agent is smoothly added to the feed port and flows into the chamber, an exhaust passage is arranged on the shell and communicates with the chamber, and an exhaust hole is arranged on the shell and communicates with the exhaust passage and the outside, and the exhaust hole communicates with the feed port.

[0019] Preferably, a through hole is arranged on the side wall of the shell and communicates with the chamber, and a second one-way valve is arranged in the through hole and allows outside gas to flow into the chamber in one direction. The second one-way valve closes the through hole in a natural state. The purpose of arranging the second one-way valve is to balance the air pressure between the chamber and the outside when the pump body pumps out the liquid dishwashing agent, so that the liquid dishwashing agent is better pumped out.

[0020] The second one-way valve can have various structural forms. In a simple structure, a central ring is arranged at the central part of the through hole, and the spacing between the outer peripheral wall of the central ring and the wall surface of the through hole forms an air inlet passage. The second one-way valve comprises a mounting rod inserted in the central ring and a valve plate arranged at one end of the mounting rod. The valve plate closes the air inlet passage in a natural state, and can be deformed to open the air inlet passage under the impact of fluid. When the air pressure in the chamber is less than the atmospheric pressure outside, the liquid dishwashing agent is not easily pumped out, and the outside airflow impacts the valve plate to open the air inlet passage, so that the outside airflow enters the chamber to balance the air pressure in the chamber, and the liquid dishwashing agent is easily pumped out by the pump body.

[0021] Generally, the liquid dishwashing agent includes dishwashing liquid. However, as the demand of users increases, rinse agent is also generally used, so the liquid dishwashing agent includes dishwashing liquid and rinse agent. The chamber has two independent chambers, and correspondingly, the feed port has two feed ports arranged side by side, and the discharge port also has two discharge ports arranged side by side. One feed port is used for the dishwashing liquid to enter, and the other feed port is used for the rinse agent to enter.

[0022] Preferably, one side of the accommodating cavity is open to form a discharge port, and the discharge port of the accommodating cavity also simultaneously serves as a feed port. The discharge port and the feed port are shared, and the structure is compact.

[0023] In order to further improve the possibility of the same water column flushing the discharge port and the discharge port, the shell has an inwardly recessed recess, the discharge port and the accommodating cavity are located in the recess, and the distance between the center lines of the two discharge ports is less than or equal to half of the distance between the upper edge and the lower edge of the recess.

[0024] In order to prevent the liquid dishwashing agent from leaking out of the feed port, the shell is provided with a cover plate capable of opening or closing the feed port.

[0025] Because the cover plate needs to be able to open or close the feed port, the cover plate and the shell are not fixedly connected, which will cause the air flow pressure in the chamber to become large during or after the cleaning process of the dishwasher, and the cover plate will be opened by the impact of the cover plate. The shell is provided with an exhaust port communicating with the chamber, the exhaust port is provided with a third one-way valve allowing the air flow in the chamber to flow outward only, and the third one-way valve closes the exhaust port in a natural state. The exhaust port plays a role in pressure relief, preventing the hot air flow in the chamber from impacting the cover plate and causing the cover plate to open unnecessarily. In addition, the third one-way valve in the exhaust port can open the exhaust port under the impact of the fluid in the washing chamber, and the third one-way valve closes the exhaust port in a natural state, which can prevent the detergent in the chamber from flowing out.

[0026] The third one-way valve can have various structural forms, preferably, the central part of the exhaust port is provided with an annular body, the distance between the outer peripheral wall of the annular body and the wall surface of the exhaust port forms an exhaust flow channel, the third one-way valve includes a positioning column inserted in the center ring and a flapper provided at one end of the positioning column, the flapper closes the exhaust flow channel in a natural state, and the flapper deforms to open the exhaust flow channel under the impact of the fluid in the chamber. The structure of the third one-way valve is simple, the flapper closes the exhaust flow channel in a natural state, and the detergent and air flow in the chamber cannot flow out of the exhaust flow channel; when the air flow pressure in the chamber is large, the air flow will impact the flapper, open the exhaust flow channel, and relieve pressure to maintain the balance of air pressure between the inside and outside of the chamber, without opening the cover plate.

[0027] In the above scheme, the lower part of the cover plate is rotationally connected with the shell, and the upper part of the cover plate is detachably connected with the shell through a connecting assembly, so as to further improve the reliability of the cover plate closing the feed port.

[0028] In order to facilitate the cover plate to open the discharge port, the detergent feeding mechanism further comprises a second elastic member that causes the cover plate to always have a tendency to open the feed port. In this way, after the cover plate and the shell are released from the restraint of the connecting assembly, the cover plate can be automatically opened under the action of the second elastic member, which is more convenient.

[0029] In order to prevent liquid or solid dishwashing agent from flowing out at non-dispensing time, a cover capable of opening and closing the outlet and the discharge port is movably arranged on the shell.

[0030] In order to guide the moving track of the cover, a sliding block and a sliding groove are arranged between the cover and the shell in a guiding manner, and the sliding groove extends along the moving direction of the cover.

[0031] Preferably, the upper portion of the accommodating cavity is provided with the sliding groove extending along the left-right direction, and the sliding groove is provided with a first water guide hole communicating the sliding groove and the accommodating cavity. In this way, the water accumulated in the sliding groove can flow into the accommodating cavity from the first water guide hole and finally flow out from the discharge port of the accommodating cavity, preventing the problem of poor drying and easy breeding of bacteria in the accumulated water in the sliding groove.

[0032] Preferably, in the state that the cover covers the discharge port of the accommodating cavity, a gap for liquid to flow out is formed between the cover and the accommodating cavity. In this way, in the pre-washing stage, a small amount of water containing dissolved detergent can flow out from the gap into the washing cavity without opening the cover, so as to clean the tableware and achieve good cleaning effect.

[0033] In the above scheme, the moving direction of the cover to open the discharge port of the accommodating cavity is referred to as the first direction, the area of the shell beside the accommodating cavity is referred to as the side area, the accommodating cavity and the side area are arranged in sequence along the first direction, and the cover covers the side area in the state that the cover opens the discharge port of the accommodating cavity.

[0034] Preferably, the upper portion of the side area is also provided with a sliding groove, and the sliding groove is provided with a second water guide hole communicating the sliding groove and the side area. The second water guide hole not only prevents the accumulation of water in the corresponding sliding groove, but also flows water to the side area to flush the wall surface of the side area in the case that the cover covers the side area during the cleaning process.

[0035] The technical scheme adopted by the present application to solve the second technical problem is a door body structure applying the above-mentioned detergent dispensing mechanism, characterized in that the structure comprises a door body, and the shell is mounted on the door body.

[0036] Preferably, the inlet of the chamber is located at the upper portion of the door body, and the outlet of the chamber and the discharge port of the accommodating cavity are both located at the lower portion of the door body. In this way, the machine model of the dishwashing machine suitable for divided-cavity washing can be adapted.

[0037] Preferably, the inlet is located at the upper portion of the door body, which not only facilitates the sealing of the inlet, but also facilitates the adaptation of the machine model of the dishwashing machine suitable for divided-cavity washing.

[0038] Preferably, the inner wall of the door has a protrusion that abuts against a partition that divides the washing chamber of the dishwasher into an upper and lower part. The discharge port of the chamber and the discharge port of the receiving chamber are both located below the protrusion, and the inlet is located above the protrusion, so as to adapt to the model of the dishwasher with separate washing chambers.

[0039] The technical solution adopted by the present invention to solve the third technical problem mentioned above is as follows: a dishwasher using the above-mentioned door structure, characterized in that: it further includes a cabinet, the cabinet having a washing chamber with an open front side, the door being movably disposed at the open side of the washing chamber, thereby opening or closing the open side of the washing chamber, and the discharge port of the chamber and the discharge port of the receiving chamber both facing the washing chamber.

[0040] Compared with the prior art, the advantages of the present invention are as follows: By setting the outlet of the liquid dishwashing detergent close to the outlet of the solid dishwashing detergent, the liquid and solid dishwashing detergents can be rinsed simultaneously by the same water column or a small number of water columns, which can reduce the number of water columns used for rinsing. Furthermore, the outlet of the liquid dishwashing detergent and the outlet of the solid dishwashing detergent are set more compactly, which is conducive to the concentrated rinsing of the water column and makes it easier to rinse the detergent clean. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a dishwasher according to an embodiment of the present invention;

[0042] Figure 2 for Figure 1 A schematic diagram of the door structure;

[0043] Figure 3 for Figure 2 A schematic diagram of the structure with the cover and cover plate removed;

[0044] Figure 4 for Figure 3 A schematic diagram of the structure without the outer door;

[0045] Figure 5 for Figure 4 A schematic diagram of the structure with one half of the shell removed;

[0046] Figure 6 for Figure 5 A schematic diagram of a local structure in the image;

[0047] Figure 7 for Figure 5 A sectional view (longitudinal section from the first check valve);

[0048] Figure 8 for Figure 5 A sectional view (longitudinal section from the second check valve);

[0049] Figure 9 forFigure 8 Enlarged view of point B;

[0050] Figure 10 for Figure 3 A partial sectional view;

[0051] Figure 11 for Figure 2 A schematic diagram of the structure when the lid is open;

[0052] Figure 12 for Figure 11 A schematic diagram of the structure of the cover;

[0053] Figure 13 for Figure 11 A schematic diagram of the structure of the protrusion in the middle;

[0054] Figure 14 for Figure 13 A schematic diagram of the structure from another direction;

[0055] Figure 15 for Figure 2 A partial sectional view of the detergent dispensing mechanism (longitudinal section from the snap-fit ​​foot);

[0056] Figure 16 for Figure 15 A partial structural diagram of the detergent dispensing mechanism (with the cover open);

[0057] Figure 17 for Figure 15 A cross-sectional view of the detergent dispensing mechanism (longitudinal section from the third check valve);

[0058] Figure 18 for Figure 17 Enlarged view of point C in the image. Detailed Implementation

[0059] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0060] like Figures 1 to 18 As shown, the dishwasher of this preferred embodiment includes a cabinet 1 and a door structure A. The door structure A includes a door 2 and a detergent dispensing mechanism. The cabinet 1 has a washing chamber 11 with an open front side. The door 2 is movably disposed at the open side of the washing chamber 11, thereby opening or closing the open side of the washing chamber 11. In this embodiment, the lower part of the door 2 is rotatably connected to the cabinet 1. This is prior art and will not be described in detail here.

[0061] The detergent dispensing mechanism is used for storing and dispensing detergents into the washing cavity 11, and the detergents include solid and liquid detergents. The solid detergent is a dishwashing powder or a dishwashing block. A spray hole can be arranged on the spray arm. A water column sprayed from the spray hole can flush the detergents in the detergent dispensing mechanism into the washing cavity 11. This is a prior art and will not be described here.

[0062] As shown in Figures 2 to 6 The detergent dispensing mechanism includes a housing 3 mounted on the door body 2. Specifically, the door body includes an inner door body and an outer door body, and the housing is mounted on the inner door body.

[0063] The housing 3 is formed by two half shells 3a. The housing 3 has a receiving cavity 31 for receiving solid detergents and a chamber 32 for receiving liquid detergents inside the housing 3. The housing 3 is provided with a feed port 321 and a discharge port 322, which are both in fluid communication with the chamber 32. The receiving cavity 31 is open on one side to form a discharge port 311, and the discharge port 311 of the receiving cavity 31 also serves as a dispensing port.

[0064] The feed port 321 and the discharge port 322 of the chamber 32 and the discharge port 311 of the receiving cavity 31 all face the washing cavity 11. The discharge port 322 is located on one side of the discharge port 311 and adjacent to the receiving cavity 31. The discharge port 322 is located above the discharge port 311 of the receiving cavity 31. In this embodiment, the housing 3 has a recess 391 recessed inwardly. The discharge port 322 and the receiving cavity 31 are both located in the recess 391. The distance L between the center lines of the two discharge ports 322 is less than or equal to half of the distance D between the upper edge and the lower edge of the recess 391. The vertical distance W between the discharge port 322 and the discharge port 311 is less than 15 mm. Thus, the same water column can flush the discharge port 322 and the discharge port 311 at the same time. The liquid detergent will flow towards the receiving cavity 31 under the action of gravity, facilitating the flushing of the water column. The water column sprayed into the discharge port 322 will flow to the receiving cavity 31 together with the liquid detergent, so as to facilitate the flushing of the solid and liquid detergents.

[0065] In addition, the feed port 321 is located above the discharge port 322. The feed port 321 is located at the upper part of the door body 2, and the discharge port 322 is located at the lower part of the door body 2. Thus, it can not only be suitable for the model of the dishwasher with separate cavities, but also facilitate the sealing of the feed port 321 by the cover plate 7 below, preventing the liquid detergent from flowing out of the feed port 321.

[0066] Regarding the separate cavity washing, a partition plate is arranged transversely in the washing cavity 11. The partition plate can abut against the protrusion 20 on the door body 2. For reference, CN202023348649.2 (CN215383808U) “A dishwasher” is as follows: Figure 3As shown, the inner wall surface (the wall surface facing the washing cavity 11) of the door body 2 is provided with a convex portion 20 for abutting against a partition plate, the partition plate can divide the washing cavity 11 of the dishwasher into an upper portion and a lower portion, the discharge port 322 of the chamber 32 and the discharge port 311 of the accommodating cavity 31 are both located below the convex portion 20, and the feeding port 321 is located above the convex portion 20.

[0067] As shown, Figure 6 As shown, the housing 3 is provided with a pump body 4, the liquid inlet 41 of the pump body 4 is in fluid communication with the chamber 32, and the liquid outlet 42 of the pump body 4 is in fluid communication between the chamber 32 and the discharge port 322, so as to facilitate the suction of the liquid dishwasher from the feeding port 321 into the chamber 32 and the flow of the liquid dishwasher out of the discharge port 322. When the pump body 4 is working, the liquid inlet 41 of the pump body 4 generates negative pressure, so as to suck the liquid dishwasher into the pump body 4 and discharge it from the liquid outlet 42 to the discharge port 322.

[0068] In addition, in the state that the pump body 4 stops working, the liquid outlet 42 of the pump body 4 is closed, so that the dishwasher located upstream of the liquid outlet 42 of the pump body 4 is blocked by the liquid outlet 42 and cannot flow towards the discharge port 322, which can prevent a large amount of dishwasher from flowing out of the discharge port 322 at a non-dispensing time. Preferably, the liquid outlet 42 of the pump body 4 is close to the discharge port 33, so as to minimize the residual dishwasher between the liquid outlet 42 of the pump body 4 and the discharge port 322 of the housing 3, and further reduce the residual liquid flowing out of the discharge port 322 at a non-dispensing time. Preferably, the discharge port 33 is the liquid outlet 42 of the pump body 4.

[0069] As shown, Figure 3 , 7 As shown, the discharge port 322 is provided with a first one-way valve 5 which can only allow the liquid dishwasher in the discharge port 322 to flow out in one direction, and the first one-way valve 5 closes the discharge port 322 in a natural state. In order to prevent the liquid dishwasher from flowing out of the discharge port 322 at a non-dispensing time. In the embodiment, the central part of the discharge port 322 is provided with a center ring 3221, the spacing between the outer peripheral wall of the center ring 3221 and the wall surface of the discharge port 322 forms a discharge channel 3222, and the first one-way valve 5 includes a mounting column 51 inserted in the center ring 3221 and a baffle plate 52 provided at one end of the mounting column 51. The baffle plate 52 can be made of flexible material such as silica gel, and the baffle plate 52 closes the discharge channel 3222 in a natural state and can be deformed to open the discharge channel 3222 under the impact of fluid. When it is not a dispensing time, the baffle plate 52 closes the discharge channel 3222, and the liquid dishwasher cannot flow out of the discharge channel 3222; when it is a dispensing time, the pump body 4 works, the liquid dishwasher impacts the baffle plate 52 to deform the baffle plate 52, opens the discharge channel 3222, and the liquid dishwasher flows out of the discharge channel 3222.

[0070] In another solution, the outlet 322 is hollow inside, i.e. the outlet 322 is not provided with other components that will hinder the flow of liquid detergent, and the inner diameter of the outlet 322 is between 4 mm and 7 mm. In this way, the inner diameter of the outlet 322 is large enough to allow the liquid detergent to flow out smoothly at the time of dispensing, so as to avoid the liquid detergent from remaining in the outlet 322 at the time of non-dispensing. Preferably, the wall of the outlet 322 is smooth, so as to further reduce the flow resistance of the liquid detergent.

[0071] Alternatively, even if the outlet 322 is hollow inside, a first one-way valve 5 is arranged in the outlet 322.

[0072] As shown in Figure 6 , the housing 3 is provided with an exhaust passage 33 that is in communication with the chamber 32, and the housing 3 is provided with an exhaust hole 34 that is in communication with the outside and the exhaust passage 33. The exhaust hole 34 is located above the inlet 321 and is in communication with the inlet 321. The communication port 331 of the exhaust passage 33 and the chamber 32 is arranged away from the inlet 321, so as to ensure that the liquid detergent can flow smoothly into the inlet 321 and then flow into the chamber 32.

[0073] In addition, as shown in Figure 8 , 9 , the side wall of the housing 3 is provided with a through hole 36 that penetrates the wall thickness of the side wall. The through hole 36 is in communication with the chamber 32, and the through hole 36 is provided with a second one-way valve 6 that allows the outside air to flow into the chamber 32 in one direction. The purpose of arranging the second one-way valve 6 is to balance the air pressure between the chamber 32 and the outside when the pump body 4 pumps out the liquid detergent, so as to better pump out the liquid detergent.

[0074] In this embodiment, the central part of the through hole 36 is provided with a center ring 361. The spacing between the outer peripheral wall of the center ring 361 and the wall of the through hole 36 forms an air inlet passage 362. The second one-way valve 6 includes a mounting rod 61 that is inserted into the center ring 361 and a valve plate 62 that is arranged at one end of the mounting rod 61. The valve plate 62 closes the air inlet passage 362 in a natural state, and the valve plate 62 can be deformed to open the air inlet passage 362 under the impact of fluid. The valve plate 62 can be made of flexible materials such as silica gel. When the air pressure in the chamber 32 is less than the atmospheric pressure, the liquid detergent cannot be pumped out. At this time, the outside air flow impacts the valve plate 62, so that the valve plate 62 opens the air inlet passage 362, and the outside air flow enters the chamber 32 to balance the air pressure in the chamber 32, so as to facilitate the pumping out of the liquid detergent by the pump body 4.

[0075] In this embodiment, the liquid dishwashing agent includes dishwashing liquid and rinsing agent, so the chamber 32 has two independent chambers, and the feeding port 321 has two feeding ports arranged side by side, and the discharging port 322 also has two discharging ports arranged side by side. One feeding port 321 is used for feeding dishwashing liquid, and the other feeding port 321 is used for feeding rinsing agent. In this embodiment, the pump body 4 used for pumping dishwashing liquid is a peristaltic pump, and the pump body 4 used for pumping rinsing agent is a diaphragm pump.

[0076] As shown in Figures 15 to 18 In order to prevent the liquid dishwashing agent from leaking out of the feeding port 321, the cover plate 7 capable of opening or closing the two feeding ports 321 is movably arranged on the shell 3. The lower part of the cover plate 7 is rotationally connected with the shell 3, and the rotation axis of the cover plate 7 extends along the left-right direction, so that the cover plate 7 can be reversibly arranged on the shell 3. The upper part of the cover plate 7 is detachably connected with the shell 3 through the connecting assembly, and the cover plate 7 always maintains the tendency of opening the feeding port 321 under the action of the second elastic member 71. In this embodiment, the second elastic member 71 is a torsion spring. In this way, after the cover plate 7 and the shell 3 are released from the constraint of the connecting assembly, the cover plate 7 can be automatically opened under the action of the second elastic member 71, which is more convenient.

[0077] The connecting assembly includes a buckling leg 72 and a buckling hole 73 in which the buckling leg 72 is detachably buckled. The buckling leg 72 is arranged on one of the shell 3 and the cover plate 7, and the buckling hole 73 is arranged on the other one of the shell 3 and the cover plate 7. In this embodiment, the buckling leg 72 is arranged on the shell 3, and the buckling hole 73 is arranged on the cover plate 7. In this way, by applying force to the cover plate 7, the buckling leg 72 and the buckling hole 73 can be buckled or disconnected, which is convenient to operate.

[0078] In addition, the cover plate 7 includes a plate-shaped body 74 rotationally connected with the shell 3 and a pressing plate 75 rotationally arranged on the plate-shaped body 74. The buckling hole 73 is arranged on the pressing plate 75. The part of the pressing plate 75 provided with the buckling hole 73 can be deflected towards or away from the shell 3. The pressing plate 75 always maintains the tendency that the buckling leg 72 and the buckling hole 73 are buckled together under the action of the first elastic member 76. The first elastic member 76 can be a compression spring, and the two ends of the first elastic member 76 are respectively abutted with the pressing plate 75 and the plate-shaped body 74. Because the overall size of the cover plate 7 is large, it is not convenient to connect or disconnect the connecting assembly. The size of the pressing plate 75 is small, which is convenient to operate, so that the buckling leg 72 and the buckling hole 73 can be buckled or disconnected.

[0079] As shown in Figure 17 , 18As shown, because the cover plate 7 needs to be able to open or close the feed inlet 321, the cover plate 7 and the housing 3 are not fixedly connected. This will cause the airflow pressure in the chamber 31 to increase during or after the dishwasher's cleaning process, impacting the cover plate 7 and causing the cover plate 7 to open the feed inlet 321. Therefore, the housing 3 is provided with an exhaust port 30 that communicates with the chamber 32. The exhaust port 30 is provided with a third one-way valve 9 that only allows the airflow in the chamber 32 to flow unidirectionally to the outside. The third one-way valve 9 closes the exhaust port 30 in its natural state. In this embodiment, an annular body 301 is provided in the central part of the exhaust port 30. The distance between the outer peripheral wall of the annular body 301 and the wall of the exhaust port 30 forms an exhaust channel 302. The third one-way valve 9 includes a positioning post 91 inserted into the annular body 301 and a baffle 92 provided at one end of the positioning post 91. The baffle 92 closes the exhaust channel 302 in its natural state. Under the impact of the fluid in the chamber 32, the baffle 92 can deform and open the exhaust channel 302. The baffle 92 can be made of materials such as silicone. The structure of this third one-way valve 9 is simple. In its natural state, the baffle 92 closes the exhaust channel 302, and the detergent and airflow in the chamber 32 cannot flow out from the exhaust channel 302. When the airflow pressure in the chamber 32 is high, the airflow will impact the baffle 92, open the exhaust channel 302, release pressure, and maintain the balance of air pressure inside and outside the chamber 32.

[0080] To prevent food residue such as rice from accumulating on the top wall of the cover plate 7, the top wall of the cover plate 7 is a slope 77 that slopes from top to bottom away from the feeding port, so that food residue such as rice grains can slide down the slope.

[0081] like Figures 11 to 14 As shown, the housing 3 is movably provided with a cover 8 that can open or close the discharge port 311 and the outlet 322. The cover 8 can be manually pulled to open or close the discharge port 311 and the outlet 322.

[0082] The cover 8 is movably disposed on the housing 3, thereby opening or closing the discharge port 322 and the discharge port 311. The direction of movement of the cover 8 to open the discharge port 311 of the accommodating cavity 31 is called the first direction (i.e., from left to right). The area on the housing 3 located beside the accommodating cavity 31 is called the side area 37. The accommodating cavity 31 and the side area 37 are arranged sequentially along the first direction. When the cover 8 opens the discharge port 311 of the accommodating cavity 31, the cover 8 covers the side area 37.

[0083] The shell 3 is provided with a sliding groove 38, in the embodiment, the sliding groove 38 has four and extends along the left and right directions, two are located above and below the accommodating cavity 31, and the other two are located above and below the side area 37. The cover 8 is provided with a sliding block 81 capable of guiding and cooperating with the sliding groove 38 to move along the sliding groove 38. In the embodiment, the shell 3 is provided with a protruding portion 39, the accommodating cavity 31 and the discharge port 322 are arranged on the protruding portion 39, the cover 8 is in a U shape, including a plate body 82 arranged at the discharge port 311 and the discharge port 322, and a guide plate 83 guiding and cooperating with the side wall of the protruding portion 39. The sliding groove 38 is arranged on the protruding portion 39, and the sliding block 81 is arranged on the guide plate 83.

[0084] The sliding groove 38 above the accommodating cavity 31 is provided with a first water guide hole 381 communicating the sliding groove 38 and the accommodating cavity 31, so that the water in the sliding groove 38 can flow into the accommodating cavity 31 from the first water guide hole 381, and finally flow out from the discharge port 311 of the accommodating cavity 31, preventing the problem of difficult drying of water accumulated in the sliding groove 38 and easy breeding of bacteria.

[0085] In addition, in the state that the cover 8 is arranged at the discharge port 311 of the accommodating cavity 31, a gap capable of allowing liquid to flow out is formed between the cover 8 and the accommodating cavity 31. In the pre-washing stage, a small amount of water dissolved with solid dishwashing machine flows out from the gap into the washing cavity without opening the cover 8, so as to clean the tableware, and the cleaning effect is good.

[0086] The sliding groove 38 above the side area 37 is provided with a second water guide hole 382 communicating the sliding groove 38 and the side area 37. The second water guide hole 382 not only prevents water from accumulating in the corresponding sliding groove 38, but also flows to the side area 37 to flush the wall surface of the side area 37 in the cleaning process when the cover 8 shields the side area 37.

[0087] The guide plate 83 is provided with a water passing hole 84 penetrating the wall thickness thereof, so that the water flow can flow out from the water passing hole 84 to prevent the water flow from accumulating in the guide plate 83 and flowing out.

[0088] In the embodiment, the protruding portion 39 is provided with a recess 391 recessed inwardly, the discharge port 322 and the accommodating cavity 31 are arranged in the recess 391, and a sealing ring is arranged between the cover 8 and the recess 391. In the state that the cover 8 closes the discharge port 322 and the discharge port 311 of the accommodating cavity 31, the sealing ring is arranged around the outer periphery of the recess 391.

[0089] The chute 38 comprises a straight section 384 and an inclined section 383 arranged in sequence along the first direction, the straight section 384 extends along the left-right direction, and the inclined section 383 extends along the left-right direction and is inclined towards the direction where the discharge port 311 is located. In this way, when the sliding block 81 is located in the inclined section 383, the cover body 8 will extrude the sealing ring, thereby improving the sealing effect.

[0090] In addition, a float for detecting the liquid level can be arranged in the chamber 32.

[0091] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation. Since the disclosed embodiments of the present application can be arranged in different directions, these directional terms are only used as illustrations and should not be regarded as limitations. For example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

[0092] The "fluid communication" referred to in the present application refers to the spatial positional relationship between two components or parts (hereinafter collectively referred to as first part and second part), i.e. the fluid (gas, liquid or mixture of the two) can flow or / and be transported from the first part to the second part along the flow path. It can be directly connected between the first part and the second part, or indirectly connected between the first part and the second part through at least one third party, which can be a fluid passage such as a pipe, channel, conduit, flow guide, hole, groove, etc., or a chamber allowing fluid flow or a combination thereof.

Claims

1. A detergent feeding mechanism for a dishwasher, comprising a housing (3) having a receiving cavity (31) for receiving solid detergent and a chamber (32) for receiving liquid detergent inside the housing (3) independently, the housing (3) being provided with a feeding port (321) and a discharging port (322) both in fluid communication with the chamber (32), and the housing (3) being further provided with a feeding port and a discharging port (311) in communication with the receiving cavity (31); characterized in that, The discharge port (322) is arranged adjacent to the discharge port (311); The discharge port (322) is arranged above the discharge port (311) of the accommodating cavity (31); The shell (3) is movably provided with a cover (8) capable of opening or closing the discharge port (322) and the discharge port (311); The cover (8) and the shell (3) are provided with a sliding block (81) and a sliding groove (38) in a guiding fit, and the sliding groove (38) extends along the moving direction of the cover (8); The upper portion of the accommodating cavity (31) is provided with the sliding groove (38) extending along the left-right direction, and the sliding groove (38) is provided with a first water guide hole (381) communicating the sliding groove (38) and the accommodating cavity (31); In the state that the cover (8) covers the discharge port (311) of the accommodating cavity (31), a gap is formed between the cover (8) and the accommodating cavity (31) for the liquid to flow out; The moving direction of the cover (8) opening the discharge port (311) of the accommodating cavity (31) is referred to as a first direction, the area of the shell (3) beside the accommodating cavity (31) is referred to as a side area (37), and the accommodating cavity (31) and the side area (37) are arranged in sequence along the first direction, and in the state that the cover (8) opens the discharge port (311) of the accommodating cavity (31), the cover (8) covers the side area (37); The upper portion of the side area (37) is also provided with the sliding groove (38), and the sliding groove (38) is provided with a second water guide hole (382) communicating the sliding groove (38) and the side area (37).

2. The detergent dispensing mechanism according to claim 1, characterized by: The vertical distance (W) between the discharge port (322) and the discharge port (311) is less than 15 mm.

3. The detergent dispensing mechanism according to claim 1, characterized by: The feeding port (321) is arranged above the discharge port (322).

4. The detergent dispensing mechanism according to claim 1, characterized by: The shell (3) is further provided with a pump body (4), the liquid inlet (41) of the pump body (4) is in fluid communication with the chamber (32), and the liquid outlet (42) of the pump body (4) is in fluid communication between the chamber (32) and the discharge port (322).

5. A detergent dispensing mechanism according to claim 4, characterised in that: In the state that the pump body (4) stops working, the liquid outlet (42) of the pump body (4) is closed.

6. A detergent dispensing mechanism according to claim 5, characterised in that: The discharge port (322) is hollow inside, and the inner diameter is between 4 mm and 7 mm.

7. The detergent dispensing mechanism according to claim 4, wherein: The discharge port (322) is provided with a first one-way valve (5) allowing only the liquid dishwashing agent in the discharge port (322) to flow out in one direction, and the first one-way valve (5) closes the discharge port (322) in a natural state.

8. A detergent dispensing mechanism according to claim 7, characterised in that: The central portion of the discharge port (322) is provided with a center ring (3221), the spacing between the outer peripheral wall of the center ring (3221) and the wall surface of the discharge port (322) forms a discharge channel (3222), the first one-way valve (5) includes a mounting column (51) inserted in the center ring (3221) and a baffle (52) arranged at one end of the mounting column (51), the baffle (52) closes the discharge channel (3222) in a natural state, and the baffle (52) can be deformed to open the discharge channel (3222) under the impact of fluid.

9. The detergent dispensing mechanism according to claim 1, wherein: The shell (3) is provided with an exhaust passage (33) communicating with the chamber (32), and the shell (3) is provided with an exhaust hole (34) communicating the exhaust passage (33) with the outside, and the exhaust hole (34) communicates with the feeding port (321).

10. The detergent dispensing mechanism according to claim 1, wherein: The side wall of the shell (3) is provided with a through hole (36) penetrating the wall thickness, the through hole (36) communicates with the chamber (32), and the through hole (36) is provided with a second one-way valve (6) allowing outside gas to flow into the chamber (32) unidirectionally, and the second one-way valve (6) closes the through hole (36) in the natural state.

11. A detergent dispensing mechanism according to claim 10, characterised in that: The central part of the through hole (36) is provided with a center ring (361), the spacing between the outer peripheral wall of the center ring (361) and the wall surface of the through hole (36) forms an air inlet passage (362), the second one-way valve (6) includes a mounting rod (61) inserted in the center ring (361) and a valve plate (62) provided at one end of the mounting rod (61), the valve plate (62) closes the air inlet passage (362) in the natural state, and the valve plate (62) can be deformed to open the air inlet passage (362) under the impact of fluid.

12. A detergent dispensing mechanism according to any one of claims 1 to 11, wherein: The chamber (32) has two independent chambers, and correspondingly, the feeding port (321) has two feeding ports arranged side by side, and the discharge port (322) also has two discharge ports arranged side by side.

13. A detergent dispensing mechanism according to claim 12, characterised in that: One side of the accommodating cavity (31) is open to form a discharge port (311), and the discharge port (311) of the accommodating cavity (31) also serves as a feeding port.

14. A detergent dispensing mechanism according to claim 13, characterised in that: The shell (3) has a recess (391) recessed inwardly, the discharge port (322) and the accommodating cavity (31) are located in the recess (391), and the distance (L) between the center lines of the two discharge ports (322) is less than or equal to half of the spacing (D) between the upper edge and the lower edge of the recess (391).

15. A detergent dispensing mechanism according to any one of claims 1 to 10, wherein: The shell (3) is provided with a cover plate (7) capable of opening or closing the feeding port (321).

16. A detergent dosing device according to claim 15, characterized in that: The shell (3) is provided with an exhaust port (30) communicating with the chamber (32), the exhaust port (30) is provided with a third one-way valve (9) allowing gas flow in the chamber (32) to flow unidirectionally to the outside, and the third one-way valve (9) closes the exhaust port (30) in the natural state.

17. A detergent dosing device according to claim 16, characterized in that: The central part of the exhaust port (30) is provided with an annular body (301), the spacing between the outer peripheral wall of the annular body (301) and the wall surface of the exhaust port (30) forms an exhaust flow passage (302), the third one-way valve (9) includes a positioning column (91) inserted in the center ring and a baffle (92) provided at one end of the positioning column (91), the baffle (92) closes the exhaust flow passage (302) in the natural state, and the baffle (92) can be deformed to open the exhaust flow passage (302) under the impact of fluid in the chamber (32).

18. The detergent dispensing mechanism of claim 15, wherein: The lower part of the cover plate (7) is rotationally connected with the shell (3), and the upper part of the cover plate (7) is detachably connected with the shell (3) through a connecting assembly.

19. A detergent dosing device according to claim 18, characterized in that: It also includes a second elastic member (71) that always keeps the cover plate (7) open to the feeding port (321).

20. The detergent dispensing mechanism of claim 18, wherein: The connecting assembly comprises a clamping leg (72) and a clamping hole (73) in which the clamping leg (72) is detachably clamped, the clamping leg (72) is arranged on one of the housing (3) and the cover plate (7), and the clamping hole (73) is arranged on the other one of the housing (3) and the cover plate (7).

21. A door structure for a detergent dispensing device according to any one of claims 1 to 20, characterized in that: The housing (3) is mounted on a door body (2).

22. The door structure of claim 21, wherein: The discharge port (322) of the chamber (32) and the discharge port (311) of the accommodating cavity (31) are both located at the lower part of the door body (2).

23. The door structure of claim 21, wherein: The feeding port (321) is located at the upper part of the door body (2).

24. The door structure of claim 21, wherein: The inner wall surface of the door body (2) has a convex part (20) for abutting against a partition plate that divides the washing cavity (11) of the dishwasher into an upper part and a lower part, the discharge port (322) of the chamber (32) and the discharge port (311) of the accommodating cavity (31) are both located below the convex part (20), and the feeding port (321) is located above the convex part (20).

25. A dishwasher using the door structure according to claim 21, characterized in that: The dishwasher further comprises a cabinet (1) having a front-opened washing cavity (11), the door body (2) is movably arranged at the opening of the washing cavity (11) to open or close the opening of the washing cavity (11), and the discharge port (322) of the chamber (32) and the discharge port (311) of the accommodating cavity (31) both face the washing cavity (11).

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