Dish washing machine and respirator thereof

Abstract

The utility model relates to the field of dish-washing machines, particularly provides a dish-washing machine and a respirator thereof, and aims to solve the problems of complex structure, high cost and high failure rate of the respirator of the conventional dish-washing machine. In order to achieve the purpose, the respirator comprises a shell and a valve body, a drainage cavity and a ventilation cavity are formed in an inner cavity of the shell, and a ventilation opening communicated with the ventilation cavity is formed in the shell; the drainage cavity is communicated with the ventilation cavity through a ventilation hole; the valve body is arranged in the ventilation cavity and comprises a valve plate and a connecting part which are connected with each other, and the connecting part is movably connected with the shell; during drainage, water in the drainage cavity can extrude air in the drainage cavity and the ventilation cavity, so that the air pressure in the ventilation cavity is increased, the valve plate can be driven to block the ventilation hole, and sewage can be prevented from entering the inner cavity of the shell. When siphoning occurs, the air pressure in the drainage cavity is lower than the atmospheric pressure, and under the driving of the atmospheric pressure, the valve plate does not block the vent hole any more, so that external air enters the drainage cavity, and the siphonage phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the field of dishwashers, and specifically provides a dishwasher and a breather thereof. Background Art

[0002] Dishwashers have now become essential household appliances for most families. In order to ensure that the air pressure in the inner tank does not become too high after the dishwasher is heated, dishwashers are equipped with breathers, and the water vapor in the inner tank can enter the breather to be discharged or condensed in the breather. In existing dishwashers, generally, both the water inlet channel and the drainage channel are integrated in the breather.

[0003] When the dishwasher drains water, siphonage may occur, causing the sewage to flow back into the inner tank. Therefore, vent holes are provided in the drainage channel to prevent siphonage. Generally, electromagnetic valves are installed at the vent holes. The electromagnetic valves are closed during drainage; after drainage is completed, the electromagnetic valves are opened to achieve the ventilation effect.

[0004] However, the electromagnetic valves need to be controlled separately, and they have complex structures, high costs, and high failure rates.

[0005] Therefore, the utility model needs a dishwasher and a breather thereof to solve the above technical problems. Summary of the Utility Model

[0006] The utility model aims to solve the above technical problems, that is, to solve the problems of complex structure, high cost, and high failure rate of the breather of the existing dishwasher.

[0007] In a first aspect, the utility model provides a breather, which comprises:

[0008] A housing, a drainage cavity and a ventilation cavity are formed in the inner cavity of the housing, and a vent is provided on the housing and is communicated with the ventilation cavity;

[0009] The drainage cavity is communicated with the ventilation cavity through a vent hole;

[0010] A valve body, which is arranged in the ventilation cavity. The valve body comprises a valve plate and a connecting part which are connected to each other, and the connecting part is movably connected to the housing;

[0011] During drainage, the valve plate can block the vent hole;

[0012] During siphonage, the valve plate no longer blocks the vent hole, so that external air can enter the drainage cavity.

[0013] In the specific implementation manner of the above breather, the top of the ventilation cavity is communicated with the top of the drainage cavity.

[0014] In the specific implementation manner of the above-mentioned respirator, the ventilation holes are arranged at the bottom of the ventilation cavity.

[0015] In the specific implementation manner of the above-mentioned respirator, the valve plate is umbrella-shaped and is arranged towards the ventilation holes.

[0016] In the specific implementation manner of the above-mentioned respirator, the valve plate is made of silica gel or rubber.

[0017] In the specific implementation manner of the above-mentioned respirator, a connecting piece is arranged in the ventilation cavity, the connecting part passes through the connecting piece, and air-permeable holes are arranged on the connecting piece.

[0018] In the specific implementation manner of the above-mentioned respirator, a sewage inlet and a sewage outlet communicating with the drainage cavity are arranged at the bottom of the housing, a partition plate is arranged in the drainage cavity, the partition plate is located between the sewage inlet and the sewage outlet, and the partition plate divides the drainage cavity into a sewage inlet cavity and a sewage outlet cavity.

[0019] In the specific implementation manner of the above-mentioned respirator, a water inlet channel is further formed in the inner cavity of the housing, and the water inlet channel has a water inlet and a water outlet; and / or

[0020] A flow meter is arranged on the water inlet channel; and / or

[0021] An air gap opening is arranged on the water inlet channel.

[0022] In the specific implementation manner of the above-mentioned respirator, a steam inlet is arranged on the housing, the ventilation opening is located above the steam inlet, and a first baffle rib is arranged between the steam inlet and the ventilation opening; and / or

[0023] The ventilation opening is located below the air gap, and a second baffle rib is arranged above the ventilation opening for guiding water flow.

[0024] In the case of adopting the above technical solution, the respirator of the present utility model includes a housing and a valve body. A drainage cavity and a ventilation cavity are formed in the inner cavity of the housing, and a ventilation opening communicating with the ventilation cavity is arranged on the housing; the drainage cavity is communicated with the ventilation cavity through a ventilation hole; the valve body is arranged in the ventilation cavity, and the valve body includes a valve plate and a connecting part connected to each other, and the connecting part is movably connected to the housing; during drainage, the valve plate can block the ventilation hole; specifically, during drainage, the water in the drainage cavity will squeeze the air in the drainage cavity and the ventilation cavity, so that the air pressure in the ventilation cavity becomes larger, which can drive the valve plate to block the ventilation hole, and it can avoid the sewage from flowing upward through the connecting channel and prevent the sewage from entering the inner cavity of the housing.

[0025] During siphonage, the valve plate no longer blocks the ventilation hole, allowing external air to enter the drainage chamber. Specifically, when siphonage occurs, at this time, the air pressure in the drainage chamber is relatively low compared to the atmospheric pressure. Driven by the atmospheric pressure, the valve will move upward, no longer blocking the ventilation hole, enabling external air to enter the drainage chamber and balancing the air pressure in the drainage chamber to avoid siphonage.

[0026] The top of the ventilation chamber is connected to the top of the drainage chamber, and the ventilation hole is provided at the bottom of the ventilation chamber; this can ensure that the sewage in the drainage chamber will not enter the ventilation chamber and thus cannot enter the inner cavity.

[0027] The ventilation hole is provided at the bottom of the ventilation chamber, enabling the condensed water vapor in the ventilation chamber to be discharged outward through the ventilation hole, preventing serious water accumulation in the ventilation chamber and ensuring its effective ventilation and anti-siphonage function. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings, in which:

[0029] Figure 1 is a schematic structural view of the respirator provided by the present invention;

[0030] Figure 2 is a partial structural view of the respirator provided by the present invention;

[0031] Figure 3 is a sectional view of the respirator provided by the present invention.

[0032] LIST OF REFERENCE NUMERALS:

[0033] 1. Housing; 11. Water inlet channel; 111. Water inlet; 112. Water outlet; 12. Drainage chamber; 121. Sewage inlet; 122. Sewage outlet; 123. Partition; 13. Ventilation chamber; 131. Ventilation hole; 132. Connecting piece; 133. Air permeable hole; 14. Steam inlet; 15. Ventilation opening; 16. Second rib; 17. First rib; 18. Arc rib; 19. Third rib; 2. Valve body; 21. Valve plate; 22. Connecting part; 3. Flowmeter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0035] It should be noted that in the description of the present utility model, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0036] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "setting", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0037] In order to solve the problems of the complex structure, high cost and high failure rate of the existing dishwasher breather.

[0038] As Figures 1-3 shown, this embodiment discloses a dishwasher, which includes a dishwasher body and a breather. Among them, the dishwasher body includes a housing, an inner tank, a water softener, a water collection cup and a drainage pump, etc.

[0039] Among them, the inner tank, the water softener, the water collection cup, the drainage pump, the water tank and the breather are all arranged inside the housing. The inner tank is used to hold tableware (such as bowls, plates, chopsticks, spoons and pots, etc.) so that the dishwasher can clean the tableware. A bracket is arranged inside the inner tank, and the bracket can place plates and bowls, etc., which can make the plates and bowls placed more compactly, and can be effectively cleaned without affecting the washing effect of other tableware, making the space of the inner tank effectively utilized.

[0040] The water collection cup is arranged below the inner tank and is used to provide washing and rinsing water for the inner tank. The breather is arranged on one side of the inner tank and is attached to the inner tank. The water softener is arranged below the breather and is specifically located on one side of the water collection cup. The water softener is used to soften the water to prevent high-hardness molecules such as calcium in the water from entering the water collection cup and affecting the washing effect.

[0041] The respirator includes a housing 1 and a valve body 2. An inlet channel 11 is further formed in the inner cavity of the housing 1. The inlet channel 11 has an inlet 111 and an outlet 112. A flow meter 3 is provided on the inlet channel 11. The flow meter 3 is specifically used to detect the amount of water flowing through the inlet channel 11 to determine the water intake. The flow meter 3 is a conventional flow meter 3 in the field of dishwashers, and its specific structure will not be described in detail here; the specific setting form of the flow meter 3 on the inlet channel 11 is also a conventional setting form in the field of dishwashers, and the specific setting method will not be described in detail.

[0042] An air gap port is provided on the inlet channel 11. The inlet channel 11 is bent at the top of the housing 1, specifically bent upward and protruding. The air gap port is provided at the bent position, specifically on the inner side. When water is flowing in, the water flow rate is large and the water will not flow out from the air gap port; when the water flows back, the water will flow back into the inner cavity of the housing 1 from the air gap port and then flow out from the steam inlet 14.

[0043] The inlet 111 is provided at the bottom end of the housing 1 and on one side of the housing 1. The outlet 112 is also provided at the bottom end of the housing 1 and on the other side of the housing 1. The inlet channel 11 is arranged around the side of the housing 1 (both sides + top). The length of the inlet channel 11 is relatively long, which can store more water. When the water vapor entering the inner circle needs to be cooled, the water in the inlet channel can quickly cool the water vapor to form condensed water.

[0044] The inlet 111 is connected to the water supply pipe, and a water inlet valve, specifically an electromagnetic valve, is provided at the inlet 111 and is controlled by the controller of the dishwasher. The outlet 112 is connected to the inlet of the water softener, and the outlet of the water softener is connected to the inlet of the water tank. The water tank is provided on one side of the water softener and is close to the water collection cup. The outlet of the water tank is connected to the water collection cup for supplying water to the water collection cup.

[0045] Refer to Figure 2, a drainage cavity 12 and a ventilation cavity 13 are formed in the inner cavity of the housing 1. A sewage inlet 121 and a sewage outlet 122 communicating with the drainage cavity 12 are provided at the bottom of the housing 1, and a ventilation opening 15 is provided on the housing 1. A partition 123 is arranged in the drainage cavity 12. The partition 123 is located between the sewage inlet 121 and the sewage outlet 122, and the partition 123 divides the drainage cavity 12 into a sewage inlet cavity and a sewage outlet cavity. Sewage enters the drainage cavity 12 from the sewage inlet 121, then flows into the sewage outlet cavity from the sewage inlet cavity, and then is discharged from the sewage outlet cavity. The sewage outlet 112 is connected to a drainage pump, and the drainage pump is used to discharge the sewage outwards. The drainage cavity 12 communicates with the ventilation cavity 13, a ventilation hole 131 is provided on the ventilation cavity 13, and a valve body 2 is arranged in the ventilation cavity 13. During drainage, the valve body 2 can block the ventilation hole 131. When siphonage occurs, external air can enter the ventilation hole 131 through the ventilation opening 15, and then enter the ventilation cavity 13 and the drainage cavity 12 to balance the air pressure in the drainage cavity 12.

[0046] The top of the ventilation cavity 13 and the top of the drainage cavity 12 are connected and communicated through a connection channel, and the ventilation hole 131 is provided at the bottom of the ventilation cavity 13. Specifically, the connection channel is located inside the water supply channel. The ventilation cavity 13 is located inside the connection channel, and the top of the connection channel is connected and communicated with the top of the ventilation cavity 13.

[0047] Specifically refer to Figure 3 , the valve body 2 includes a valve plate 21 and a connection part 22 which are connected to each other, and the connection part 22 is movably connected to the housing 1; specifically, a connection piece 132 is arranged in the ventilation cavity 13, and the connection part 22 is arranged through the connection piece 132, that is, a through hole is provided on the connection piece 132, the connection part 22 is arranged through the through hole, and a protruding part is provided around the end of the connection part away from the valve plate 21, which can prevent the connection part 22 from falling off the connection piece 132.

[0048] The connection piece 132 is provided with a ventilation hole 133; the connection piece 132 is located above the ventilation hole 131, and the ventilation hole 133 can communicate the ventilation hole 131 with the connection channel.

[0049] During drainage, the valve plate 21 can block the ventilation hole 131; specifically, during drainage, the water in the drainage cavity 12 will squeeze the air in the drainage cavity 12 and the ventilation cavity 13, making the air pressure in the ventilation cavity 12 increase, which can drive the valve plate 21 to block the ventilation hole 131, and can prevent sewage from flowing upwards through the connection channel and entering the inner cavity of the housing 1.

[0050] During siphoning, the valve piece 21 no longer blocks the ventilation hole 131, allowing external air to enter the drainage cavity 12. Specifically, when siphoning occurs, at this time, the air pressure in the drainage cavity 12 is relatively lower than the atmospheric pressure. Driven by the atmospheric pressure, the valve piece 21 will move upward, no longer blocking the ventilation hole 131, enabling external air to enter the drainage cavity 12 to balance the air pressure in the drainage cavity 12 and avoid siphoning.

[0051] To enable normal ventilation, the outer diameter of the valve piece 21 is smaller than the inner diameter of the ventilation cavity 13. The valve piece 21 is umbrella-shaped and is arranged towards the ventilation hole 131, that is, the concave part of the valve piece 21 faces downward. The valve piece 21 is made of silica gel or rubber. The materials of silica gel and rubber are relatively soft, which can better block the ventilation hole 131 and prevent sewage from contaminating other parts of the respirator and the inner liner of the dishwasher. In addition, the materials of rubber and silica gel are relatively light. When siphoning occurs, the atmospheric pressure can lift the valve piece 21, allowing air to enter the drainage cavity 12 to avoid siphoning.

[0052] Continue to refer to Figures 1-3 , the steam inlet 14 is arranged on the housing 1, and the ventilation port 15 is located above the steam inlet 14. The steam inlet 14 is connected to the side wall of the inner liner by bolts. The water vapor in the inner liner can enter the inner liner from the steam inlet 14. A third rib 19 is arranged at the bottom of the steam inlet 14 and is arranged horizontally. The ventilation cavity 13 is located above the third rib 19.

[0053] An arc-shaped rib 18 is arranged on one side of the steam inlet 14 close to the ventilation cavity 13. A first rib 17 is arranged between the steam inlet 14 and the ventilation port 15. The first rib 17 can block the steam, enabling it to stay in the inner cavity of the housing 1 for a longer time for condensation. The condensed water can flow back to the inner liner along the third rib 19; the excess steam can be discharged from the ventilation port 15.

[0054] The ventilation port 15 is located below the air gap. A second rib 16 is arranged above the ventilation port 15 for guiding water; the returned water can flow along the second rib 16 to the first rib 17, then to the arc-shaped rib 18, and then to the third rib 19, and then return to the inner liner through the steam inlet 14.

[0055] When the dishwasher is washing, tap water enters the water inlet passage 11 from the water inlet 111, continues to flow in the water inlet passage 11 after passing through the flow meter 3, then flows out from the water outlet 112, flows into the water softener, and after being softened in the water softener, it flows into the water tank, and then from the water tank into the water collection cup, where the water is heated, and then the washing work is carried out. After the washing is completed, the drain pump is turned on; under the action of the drain pump, the sewage enters the drain cavity 12 from the sewage inlet 121, and is discharged outwards into the drain pipe from the sewage drain outlet, and then discharged outwards. During the drainage process, the air pressure in the drain cavity 12 will increase due to the impact of the water flow, so that the valve body 2 blocks the vent hole 131 to prevent the sewage from entering the inner cavity from the vent hole 131. The water vapor generated during the washing process will increase the air pressure in the inner tank. The water vapor will enter the inner cavity from the steam inlet 14, cool down in the inner cavity, and the condensed water will flow back into the inner tank from the steam inlet 14. The excess water vapor can be discharged outwards through the vent 15.

[0056] After the washing and drainage are completed, cold rinsing is carried out. Tap water enters the water inlet passage 11 from the water inlet 111, continues to flow in the water inlet passage 11 after passing through the flow meter 3, then flows out from the water outlet 112, flows into the water softener, and after being softened in the water softener, it flows into the water tank, and then from the water tank into the water collection cup, and then the cold rinsing work is carried out. After the washing is completed, the drain pump is turned on; under the action of the drain pump, the cold rinsing water enters the drain cavity 12 from the sewage inlet 121, and is discharged outwards into the drain pipe from the sewage drain outlet, and then discharged outwards. During the drainage process, the air pressure in the drain cavity 12 will increase due to the impact of the water flow, so that the valve body 2 is driven to block the vent hole 131 to prevent the sewage from entering the inner cavity from the vent hole 131.

[0057] After the washing and drainage are completed, hot rinsing is carried out. Tap water enters the water inlet passage 11 from the water inlet 111, continues to flow in the water inlet passage 11 after passing through the flow meter 3, then flows out from the water outlet 112, flows into the water softener, and after being softened in the water softener, it flows into the water tank, and then from the water tank into the water collection cup, and the water is heated, and then the hot rinsing work is carried out. After the hot rinsing is completed, the drain pump is turned on; under the action of the drain pump, the water after hot rinsing enters the drain cavity 12 from the sewage inlet 121, and is discharged outwards into the drain pipe from the sewage drain outlet, and then discharged outwards. During the drainage process, the air pressure in the drain cavity 12 will increase due to the impact of the water flow, so that the valve body 2 is driven to block the vent hole 131 to prevent the sewage from entering the inner cavity from the vent hole 131. The water vapor generated during the hot rinsing process will increase the air pressure in the inner tank. The water vapor will enter the inner cavity from the steam inlet 14, cool down in the inner cavity, and the condensed water will flow back into the inner tank from the steam inlet 14. The excess water vapor can be discharged outwards through the vent 15.

[0058] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A breathing apparatus, characterized in that, Comprising: A housing (1), a drainage chamber (12) and a ventilation chamber (13) are formed in the inner cavity of the housing (1), and a ventilation port (15) communicating with the ventilation chamber (13) is provided on the housing (1); The drainage chamber (12) communicates with the ventilation chamber (13) through a ventilation hole (131); A valve body (2) is arranged in the ventilation chamber (13), the valve body (2) includes a valve plate (21) and a connecting portion (22) connected to each other, and the connecting portion (22) is movably connected to the housing (1); During drainage, the valve plate (21) can block the ventilation hole (131); During siphonage, the valve plate (21) no longer blocks the ventilation hole (131), so that external air enters the drainage chamber (12).

2. The breathing apparatus according to claim 1, characterized in that, The top of the ventilation chamber (13) communicates with the top of the drainage chamber (12).

3. The breathing apparatus according to claim 2, characterized in that, The ventilation hole (131) is arranged at the bottom of the ventilation chamber (13).

4. The breathing apparatus according to claim 1, characterized in that, The valve plate (21) is umbrella-shaped and is arranged towards the ventilation hole (131).

5. The breathing apparatus according to claim 4, characterized in that, The valve plate (21) is made of silica gel or rubber.

6. The breathing apparatus according to claim 1, characterized in that, A connecting piece (132) is arranged in the ventilation chamber (13), the connecting portion (22) is arranged through the connecting piece (132), and ventilation holes (133) are arranged on the connecting piece (132).

7. The breathing apparatus according to claim 1, characterized in that, A sewage inlet (121) and a sewage outlet (122) communicating with the drainage chamber (12) are arranged at the bottom of the housing (1), a partition plate (123) is arranged in the drainage chamber (12), the partition plate (123) is located between the sewage inlet (121) and the sewage outlet (122), and the partition plate (123) divides the drainage chamber (12) into a sewage inlet chamber and a sewage outlet chamber.

8. The breathing apparatus according to claim 1, characterized in that, An inlet channel (11) is further formed in the inner cavity of the housing (1), the inlet channel (11) has an inlet (111) and an outlet (112); and / or A flow meter (3) is arranged on the inlet channel (11); and / or An air gap port is arranged on the inlet channel (11).

9. The breathing apparatus according to claim 8, characterized in that, A steam inlet (14) is arranged on the housing (1), the ventilation port (15) is located above the steam inlet (14), and a first rib (17) is arranged between the steam inlet (14) and the ventilation port (15); and / or The ventilation port (15) is located below the air gap port, and a second rib (16) is arranged above the ventilation port (15) for guiding water.

10. A dishwasher, characterized in that, Comprising a dishwasher body and a breather as described in any one of claims 1-9, and the breather is arranged in the dishwasher body.

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