Residual water removing structure of dish washing machine

Abstract

A residual water removing structure of a dish washing machine comprises a water collecting cup arranged at the bottom of an inner container, a water draining pump arranged on the side portion of the water collecting cup and a respirator arranged on the side portion of the inner container, an inverted-U-shaped water draining channel is arranged on the respirator, a water draining opening is formed in the bottom of one end of the water draining channel, and the water collecting cup, the water draining channel and the water draining opening are sequentially communicated. The water dispenser is characterized by further comprising a peristaltic pump arranged at the bottom of the inner container, and the water collecting cup, the peristaltic pump and the water outlet are sequentially communicated. According to the residual water removing structure of the dish-washing machine, the peristaltic pump is arranged at the bottom of the inner container, the water collecting cup, the peristaltic pump and the water drainage opening are sequentially communicated, after water in the inner container is drained out of the dish-washing machine through the water drainage pump, residual water in the water collecting cup can be drained out of the dish-washing machine through the peristaltic pump, and therefore no residual water exists in the water collecting cup basically; therefore, the problems that the residual water affects the cleaning effect and the use convenience, and potential sanitation hazards and psychological unpleasure are caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, and in particular to a structure for removing residual water from a dishwasher. Background Technology

[0002] The dishwasher's inner tub has a water collection cup at the bottom and a breather on its side. A drain pump is located on the side of the water collection cup, and the breather has an inverted U-shaped drain channel. One end of the drain channel has a drain outlet. The water collection cup, drain channel, and drain outlet are connected sequentially. When the drain pump works, it drains the water from the inner tub outside the dishwasher. The inverted U-shaped drain channel prevents water from flowing back into the water collection cup due to negative pressure inside the pipe (i.e., anti-siphon). However, this leads to another problem: after the inner tub has drained completely, due to the inverted U-shaped drain channel, a small portion of the drained water cannot reach the drain outlet and instead flows back into the water collection cup, resulting in residual water. This residual water problem not only affects cleaning effectiveness and ease of use but also poses hygiene risks and psychological discomfort. For users, this is not only a functional defect but also a challenge to product value and brand trust. Therefore, solving the residual water problem is crucial for improving the user experience.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a dishwasher residual water removal structure that is simple in structure, has good drainage effect, does not produce residual water, is easy to use, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A dishwasher residual water removal structure designed for this purpose includes a water collection cup located at the bottom of the inner tub, a drain pump located on the side of the water collection cup, and a breather located on the side of the inner tub. The breather has an inverted U-shaped drain channel, and a drain outlet is located at the bottom of one end of the drain channel. The water collection cup, the drain channel, and the drain outlet are connected in sequence. The feature is that it also includes a peristaltic pump located at the bottom of the inner tub, and the water collection cup, the peristaltic pump, and the drain outlet are connected in sequence.

[0006] A water outlet is provided on one side of the bottom of the water collection cup, and a drain pump is installed on the water outlet. A first water outlet connector is provided on the side of the water outlet, and a second water outlet connector is provided at the bottom of the water outlet. A water inlet connector is provided on the peristaltic pump. The first water outlet connector is connected to the drainage channel, and the second water outlet connector is connected to the water inlet connector. The second water outlet connector is located below the first water outlet connector.

[0007] The peristaltic pump is equipped with a third water outlet connector, which is connected to the drain outlet, which is located below the third water outlet connector.

[0008] A filter screen is installed at the bottom of the water outlet, corresponding to the position of the second water outlet connector. The water outlet is connected to the second water outlet connector through the filter screen.

[0009] A one-way valve is installed on the first water outlet connector.

[0010] The second water outlet connector is connected to the water inlet connector through the first water pipe, and the third water outlet connector is connected to the drain outlet through the second water pipe. The first and second water pipes are flexible hoses.

[0011] The other end of the drainage channel is equipped with a water inlet, and the first water outlet, the water inlet and the drainage channel are connected in sequence.

[0012] The first water outlet is connected to the water inlet via the third water pipe, and the bottom of the drain outlet is connected to a drain pipe.

[0013] An air outlet is provided on the side of the inner liner. The respirator is provided with a first air outlet channel and a second air outlet channel. The air outlet, the first air outlet channel, the second air outlet channel and the drain channel are connected in sequence. A check valve is provided between the first air outlet channel and the second air outlet channel. The first air outlet channel, the second air outlet channel and the drain channel are arranged from top to bottom in sequence.

[0014] The drainage channel includes a first flow channel and a second flow channel that together form a U-shape, with the inlet, the first flow channel, the second flow channel and the outlet connected in sequence.

[0015] The dishwasher residual water removal structure of this utility model has a peristaltic pump installed at the bottom of the inner tank. The water collection cup, the peristaltic pump and the drain outlet are connected in sequence. After the drain pump drains the water in the inner tank of the dishwasher, the peristaltic pump can drain the residual water in the water collection cup to the outside of the dishwasher, so that there is basically no residual water in the water collection cup. This prevents residual water from affecting the cleaning effect and ease of use, as well as causing hygiene hazards and psychological discomfort. Attached Figure Description

[0016] Figure 1 This is a partial structural diagram of a dishwasher according to one embodiment of the present invention.

[0017] Figure 2 This is a partial structural diagram of the dishwasher from another position in one embodiment of the present invention.

[0018] Figure 3 This is a partial structural side view of a dishwasher according to one embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the overall structure of the structure excluding residual water in one embodiment of this utility model.

[0020] Figure 5 This is a schematic diagram of the overall structure of this utility model from another position, excluding the residual water structure.

[0021] Figure 6 This is a schematic diagram of the overall structure of the water collecting cup in one embodiment of the present invention. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See Figures 1-6 This dishwasher, excluding the residual water structure, includes a water collection cup 2 located at the bottom of the inner tub 1, a drain pump 3 located on the side of the water collection cup 2, and a breather 4 located on the side of the inner tub 1. The water collection cup 2 is connected to the inner tub 1. The bottom of the breather 4 is provided with an inverted U-shaped drain channel 5. One end of the drain channel 5 is provided with a drain outlet 6. The water collection cup 2, the drain channel 5, and the drain outlet 6 are connected in sequence. It also includes a peristaltic pump 7 located at the bottom of the inner tub 1. The water collection cup 2, the peristaltic pump 7, and the drain outlet 6 are connected in sequence.

[0024] A water outlet 8 is provided on one side of the bottom of the water collection cup 2, and a drain pump 3 is provided on the water outlet 8. A first water outlet connector 9 is provided on the side of the water outlet 8, and a second water outlet connector 10 is provided on the bottom of the water outlet 8. The water outlet 8 is connected to the first water outlet connector 9 and the second water outlet connector 10 respectively. A water inlet connector 11 is provided on the peristaltic pump 7. The first water outlet connector 9 is connected to the drain channel 5, and the second water outlet connector 10 is connected to the water inlet connector 11. The second water outlet connector 10 is located below the first water outlet connector 9, so that the peristaltic pump 7 can fully remove the residual water inside the water collection cup 2.

[0025] The peristaltic pump 7 is equipped with a third water outlet connector 12, which is connected to the drain outlet 6. The drain outlet 6 is located below the third water outlet connector 12, which can prevent water from flowing back from the drain outlet 6 to the peristaltic pump 7 and then back to the water collection cup 2.

[0026] A filter screen 13 is installed at the bottom of the water outlet 8, corresponding to the position of the second water outlet connector 10. The water outlet 8 is connected to the second water outlet connector 10 through the filter screen 13. After the dishwasher finishes washing, the drain pump 3 starts to drain water. The water in the inner tank 1 is discharged from the dishwasher through the water collection cup 2, the drain channel 5 and the drain outlet 6 in sequence. After the drain pump 3 has drained the water, about 50-100ml of residual water remains in the water collection cup 2. At this time, the peristaltic pump 7 starts to work. The residual water in the water collection cup 2 is discharged from the dishwasher through the peristaltic pump 7 and the drain outlet 6 in sequence. During the water pumping process, the filter screen 13 filters the residue to prevent the residue from clogging the pipe.

[0027] The first water outlet connector 9 is equipped with a one-way valve 14, which can prevent water backflow.

[0028] The second water outlet connector 10 is connected to the water inlet connector 11 through the first water pipe 15, and the third water outlet connector 12 is connected to the drain outlet 6 through the second water pipe 16. The first water pipe 15 and the second water pipe 16 are flexible hoses, which are squeezed and closed when connected.

[0029] The other end of the drainage channel 5 is provided with a water inlet 17, and the first water outlet 9, the water inlet 17 and the drainage channel 5 are connected in sequence.

[0030] The first water outlet connector 9 is connected to the water inlet 17 via the third water pipe 18, and the bottom of the drain outlet 6 is connected to the drain pipe 19.

[0031] The inner liner 1 has an air outlet 20 on its side. The breather 4 has a first air outlet channel 21 and a second air outlet channel 22. The air outlet 20, the first air outlet channel 21, the second air outlet channel 22 and the drain channel 5 are connected in sequence. A check valve 23 is provided between the first air outlet channel 21 and the second air outlet channel 22. The first air outlet channel 21, the second air outlet channel 22 and the drain channel 5 are arranged from top to bottom. The steam in the inner liner 1 is discharged from the dishwasher through the air outlet 20, the first air outlet channel 21, the second air outlet channel 22, the drain channel 5 and the drain outlet 6 in sequence. When venting, the check valve 23 is opened by the steam. After venting, the check valve 23 is automatically closed by gravity. The check valve 23 prevents water in the drain channel 5 from entering the inner liner 1 through the second air outlet channel 22, the first air outlet channel 21 and the air outlet 20 in sequence when draining.

[0032] The drain channel 5 includes a first flow channel 25 and a second flow channel 26 that together form a U-shape. The inlet 17, the first flow channel 25, the second flow channel 26 and the drain outlet 6 are connected in sequence. After the drain pump 3 finishes draining the water, because the drain channel 5 is inverted U-shape, the last small part of the water cannot be drained to the drain outlet 6. This part of the water is on the first flow channel 25. Due to gravity, it cannot flow to the second flow channel 26. Instead, it flows back into the water collection cup 2, forming residual water. Then, the residual water is discharged from the dishwasher by the peristaltic pump 7.

[0033] A slot 24 is provided at the bottom of the water outlet 8 corresponding to the position of the second water outlet connector 10, and the filter screen 13 is locked in the slot 24.

[0034] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A residual water removal structure for a dishwasher, comprising a water collection cup (2) disposed at the bottom of an inner tub (1), a drain pump (3) disposed on the side of the water collection cup (2), and a breather (4) disposed on the side of the inner tub (1), wherein the breather (4) is provided with an inverted U-shaped drain channel (5), and a drain outlet (6) is provided at the bottom of one end of the drain channel (5), and the water collection cup (2), the drain channel (5), and the drain outlet (6) are connected in sequence, characterized in that: The peristaltic pump (7) is arranged at the bottom of the inner container (1), and the water collecting cup (2), the peristaltic pump (7) and the drain port (6) are sequentially communicated.

2. The residual water removing structure of the dish washing machine according to claim 1, wherein: The water outlet (8) is provided with a first water outlet connector (9) at one side thereof, and a second water outlet connector (10) at the bottom thereof, and the peristaltic pump (7) is provided with a water inlet connector (11), the first water outlet connector (9) is communicated with the drain channel (5), the second water outlet connector (10) is communicated with the water inlet connector (11), and the second water outlet connector (10) is located below the first water outlet connector (9). 3.The residual water removing structure of a dish washing machine according to claim 2, wherein: The peristaltic pump (7) is provided with a third water outlet connector (12), the third water outlet connector (12) is communicated with the drain port (6), and the drain port (6) is located below the third water outlet connector (12).

4. The residual water removing structure of the dish washing machine according to claim 2, wherein: The bottom of the water outlet (8) is provided with a filter screen (13) corresponding to the position of the second water outlet connector (10), and the water outlet (8) is communicated with the second water outlet connector (10) through the filter screen (13).

5. The residual water removing structure of the dish washing machine according to claim 2, wherein: The first water outlet connector (9) is provided with a one-way valve (14).

6. The residual water removing structure of the dish washing machine according to claim 3, wherein: The second water outlet connector (10) is connected with the water inlet connector (11) through a first water pipe (15), the third water outlet connector (12) is connected with the drain port (6) through a second water pipe (16), and the first water pipe (15) and the second water pipe (16) are flexible pipes.

7. The residual water removing structure of the dish washing machine according to claim 2, wherein: The other end of the drain channel (5) is provided with a water inlet (17), and the first water outlet connector (9), the water inlet (17) and the drain channel (5) are sequentially communicated. 8.The residual water removing structure of a dish washing machine according to claim 7, wherein: The first water outlet connector (9) is connected with the water inlet (17) through a third water pipe (18), and the bottom of the drain port (6) is connected with a drain pipe (19).

9. The residual water removing structure of the dish washing machine according to claim 1, wherein: The side of the inner container (1) is provided with an air outlet (20), the respirator (4) is provided with a first air outlet channel (21) and a second air outlet channel (22), the air outlet (20), the first air outlet channel (21), the second air outlet channel (22) and the drain channel (5) are sequentially communicated, a check valve (23) is arranged between the first air outlet channel (21) and the second air outlet channel (22), and the first air outlet channel (21), the second air outlet channel (22) and the drain channel (5) are sequentially arranged from top to bottom. 10.The residual water removing structure of the dish washing machine according to claim 8, wherein: The drain channel (5) comprises a first flow channel (25) and a second flow channel (26) which jointly form a U shape, and the water inlet (17), the first flow channel (25), the second flow channel (26) and the drain port (6) are sequentially communicated.

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