CN108013850B

CN108013850B - Drainage device and washing electric appliance

Info

Publication number: CN108013850B
Application number: CN201810024077.0A
Authority: CN
Inventors: 姚福满; 付安东; 米士军; 仇灿华; 张新科; 许平平
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2018-01-10
Filing date: 2018-01-10
Publication date: 2021-04-20
Anticipated expiration: 2038-01-10
Also published as: CN108013850A

Abstract

The invention discloses a drainage device and a washing electric appliance, wherein the drainage device comprises a body and a baffle plate, a water inlet pipeline, an air vent pipeline and a water outlet pipeline are formed in the body, the water outlet pipeline is communicated with the water inlet pipeline and the air vent pipeline, the body is provided with an air vent communicated with the outside atmosphere, the position of the air vent is higher than the position of an opening at one end, far away from the water outlet pipeline, of the air vent pipeline, the baffle plate is movably arranged between the air vent and the opening at one end of the air vent pipeline, the baffle plate is configured to move between a first position and a second position, when the baffle plate is positioned at the first position, the baffle plate blocks the air vent, and when the baffle plate is positioned at the second position, the baffle plate is. When the blocking piece is positioned at the second position, the vent hole is communicated with the ventilation pipeline and the outside atmosphere, so that the phenomenon that water in the liner is excessively discharged by the drainage device due to siphonage caused by the reduction of air pressure in the pipeline of the drainage device can be prevented.

Description

Drainage device and washing electric appliance

Technical Field

The invention relates to the field of household appliances, in particular to a drainage device and a washing appliance.

Background

The related art dishwasher is provided with a drain device communicated with an inner tub of the dishwasher. When the dishwasher drains water, the water in the inner container can be drained out of the inner container along the pipeline in the drainage device under the action of the drainage pump. The operation of the dishwasher generally includes a plurality of stages, for example, a pre-washing stage, a washing stage and a drying stage, and the dishwasher may drain part of water to the outside of the inner container through the drainage device to refresh the water in the inner container to promote smooth washing of the dishwasher. However, the water discharge device in the related art is easy to generate siphon phenomenon due to the reduction of air pressure in the water discharge device in the using process, so that water in the inner container is excessively discharged by the water discharge device, the subsequent normal washing of the dishwasher is affected, and the user experience is reduced.

Disclosure of Invention

The invention provides a drainage device and a washing electric appliance.

The drainage device of the embodiment of the invention can be used for washing electric appliances, and comprises a body and a baffle plate, a water inlet pipeline, an air vent pipeline and a water outlet pipeline are formed in the body, the water outlet pipeline is communicated with the water inlet pipeline and the air vent pipeline, the body is provided with a vent hole communicated with the outside atmosphere, the position of the vent hole is higher than the position of an opening at one end of the vent pipeline far away from the water outlet pipeline, the baffle is movably arranged between the air port and one end opening of the air vent pipeline, the baffle is configured to move between a first position and a second position, when the blocking piece is positioned at the first position, the air vent is blocked by the blocking piece, when the blocking piece is positioned at the second position, the flap is positioned at an end opening of the vent tube and opens the vent opening to place the vent opening in communication with the vent tube.

The drainage device can be used in a washing electric appliance, the water inlet pipeline can be communicated with the inner container of the washing electric appliance, so that water in the inner container of the washing electric appliance can enter the drainage device through the water inlet pipeline and can flow out of the drainage device through the water outlet pipeline under the action of the drainage pump. When the separation blade was located the second position, blow vent intercommunication vent pipe and external atmosphere to can prevent to appear siphon phenomenon and lead to the water in the inner bag to be discharged by drainage device excess because air pressure descends in drainage device's the pipeline, then can guarantee the subsequent normal washing of washing electrical apparatus, promoted user experience. In addition, when the baffle is located at the first position, the baffle can prevent water with larger pressure from spilling out of the drainage device through the vent hole to influence the normal use of the drainage device and the washing electric appliance.

In some embodiments, the flap is a rubber sheet.

In some embodiments, the size of the one end opening of the vent tube is larger than the size of the vent, and the planar size of the flap is larger than the size of the one end opening of the vent tube.

In certain embodiments, the vent conduit is in a serpentine shape.

In some embodiments, the aeration conduit includes a first conduit section and a second conduit section, the second conduit section having a zigzag shape, the second conduit section connecting the outlet conduit and the first conduit section, the first conduit section tapering from the second conduit section toward an opening at one end of the aeration conduit.

In some embodiments, the second pipe section includes a third pipe section and a fourth pipe section, the fourth pipe section is a zigzag shape, the fourth pipe section connects the outlet pipe and the third pipe section, the third pipe section connects the fourth pipe section and the first pipe section, the third pipe section gradually changes toward the first pipe section, and the length of the third pipe section is smaller than that of the first pipe section.

In some embodiments, the body comprises an annular plate extending from an end opening edge of the air duct into an end opening of the air duct, and the flap is located on the annular plate when the flap is in the second position.

In some embodiments, the inlet of the water inlet pipe is lower than the position of the opening at the other end of the air vent pipe connected with the water outlet pipe, the outlet of the water outlet pipe is lower than the position of the opening at the other end of the air vent pipe connected with the water outlet pipe, and the water inlet pipe and the water outlet pipe are connected to form an inverted U shape.

In some embodiments, the drainage device includes an air extractor, the body defines a mounting groove, the air extractor is mounted to the mounting groove and forms an air flow channel in communication with an opening of the mounting groove, and the air flow channel is separated from the water inlet pipe, the air vent pipe, and the water outlet pipe.

In certain embodiments, the flap is configured to move from the first position to the second position by its own weight and to move from the second position to the first position by the rising air pressure of the air duct.

The washing appliance of the embodiment of the invention comprises the drainage device of any one of the above embodiments.

In the washing electric appliance, the water inlet pipeline can be communicated with the inner container of the washing electric appliance, so that water in the inner container of the washing electric appliance can enter the drainage device through the water inlet pipeline and can flow out of the drainage device through the water outlet pipeline under the action of the drainage pump. When the separation blade was located the second position, blow vent intercommunication vent pipe and external atmosphere to can prevent to appear siphon phenomenon and lead to the water in the inner bag to be discharged by drainage device excess because air pressure descends in drainage device's the pipeline, then can guarantee the subsequent normal washing of washing electrical apparatus, promoted user experience. In addition, when the baffle is located at the first position, the baffle can prevent water with larger pressure from spilling out of the drainage device through the vent hole to influence the normal use of the drainage device and the washing electric appliance.

In some embodiments, the washing appliance includes an inner container, a washing chamber is formed in the inner container, the water inlet pipe is communicated with the washing chamber, and the water drainage device is installed on the inner container and located outside the washing chamber.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic perspective view of a washing appliance in accordance with an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a drain according to an embodiment of the present invention;

FIG. 3 is another schematic perspective view of a drain according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a drain according to an embodiment of the present invention;

FIG. 5 is another schematic cross-sectional view of a drain according to an embodiment of the present invention;

fig. 6 is an enlarged schematic view of a portion of the drain i of fig. 5.

Fig. 7 is a side schematic view of a drain according to an embodiment of the present invention.

Description of the main element symbols:

a washing appliance 100;

the water discharging device 10, the body 11, the opening 110, the air vent 111, the baffle 12, the water inlet pipeline 13, the inlet 130, the air vent pipeline 14, the opening 140, the opening 1401, the first pipeline section 141, the second pipeline section 142, the third pipeline section 143, the fourth pipeline section 144, the annular plate 145, the water outlet pipeline 15, the outlet 150, the air exhaust fan 16, the air flow channel 161, the installation groove 17, the air exhaust port 18, the air exhaust channel 181, the inner container 20, the washing chamber 21 and the spray arm 22.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 7, a drainage device 10 according to an embodiment of the present invention is used for a washing appliance 100, and the washing appliance 100 is, for example, a dishwasher. The washing appliance 100 includes an inner container 20. A washing chamber 21 is formed in the inner tub 20. The drain device 10 is installed in the inner tub 20 and is located outside the washing chamber 21. The drainage device 10 can discharge water in the inner container 20 to the outside of the inner container 20.

It is understood that further, the washing appliance 100 comprises a bowl basket (not shown), a shower device and a pump body device (not shown). The pump body arrangement may comprise a wash pump and a drain pump. Wherein, the washing pump is connected with the spraying device. The drainage pump is connected with the drainage device. The bowl basket is disposed in the washing chamber 21. The bowl basket can be used for placing tableware. The shower arrangement comprises a spray arm 22 arranged in the washing chamber 21 and rotatable relative to the bowl basket. The spray arm 22 is opened with a plurality of spray holes (not shown) spaced apart toward the bowl basket. The pump body device is connected with the spraying device. Thus, when the washing appliance 100 is in the washing stage, water can be pumped by the washing pump to the spray device and sprayed by the spray arm 22 into the dish basket to wash dishes placed in the dish basket. In addition, when the washing appliance 100 is in an operation stage (for example, when the washing appliance 100 is in a washing stage), the water in the inner tub may be discharged out of the inner tub 20 through the drainage device 10 by the drainage pump.

The drainage device 10 of the embodiment of the present invention includes a body 11 and a baffle 12. The body 11 has an inlet pipe 13, an air passage pipe 14 and an outlet pipe 15 formed therein. Wherein the water inlet conduit 13 communicates with the washing chamber 21. The water outlet pipe 15 is communicated with the water inlet pipe 13 and the air vent pipe 14. The body 11 is opened with a vent 111 communicating with the outside atmosphere. The vent opening 111 is located higher than the opening 140 at the end of the vent tube 14 remote from the outlet tube 15. The flap 12 is movably disposed between the vent opening 111 and an end opening 140 of the vent tube 14. The flap 12 is configured to be movable between a first position a and a second position b. When the flap 12 is in the first position a (shown in fig. 4), the flap 12 blocks the vent 111. When the flap 12 is in the second position b (shown in fig. 5), the flap 12 is positioned at the one end opening 140 of the vent tube 14 and opens the vent 111 to place the vent 111 in communication with the vent tube 14.

In this way, the water inlet pipe 13 is communicated with the inner container 20 of the washing electric appliance 100, so that water in the inner container 20 of the washing electric appliance 100 can enter the drainage device 10 through the water inlet pipe 13 and can flow out of the drainage device 10 through the water outlet pipe 15 under the action of the drainage pump. When the blocking plate 12 is located at the second position b, the vent hole 111 is communicated with the vent pipeline 14 and the external atmosphere, so that water in the inner container 20 can be prevented from being excessively discharged by the drainage device 10 due to the siphon phenomenon caused by the decrease of the air pressure in the pipeline of the drainage device, the subsequent normal washing of the washing electric appliance 100 can be ensured, and the user experience is improved. In addition, when the flap 12 is located at the first position a, the flap 12 can prevent water with a large pressure from spilling out of the drainage device 10 through the vent 111 and affecting the normal use of the drainage device 10 and the washing appliance 100.

When the drainage device 10 is stopped, the stopper 12 is in the second position b, and it is possible to prevent foreign substances such as an ash layer from falling into the vent pipe 14 through the vent hole.

In certain embodiments, the baffle 12 is a rubber sheet. Thus, the flap 12 has elasticity, so that when the flap 12 is located at the first position, the sealing effect when the flap 12 blocks the vent hole 111 is better. In addition, the flap 12 is lightweight, which ensures that the flap 12 can be smoothly moved back and forth between the first position a and the second position b.

In some embodiments, the flap 12 is configured to move from the first position a to the second position b by its own weight, and to move from the second position b to the first position a by the rising air pressure of the air duct 14.

Thus, even if the water level in the water inlet pipe 13 is instantaneously moved upward due to a large initial water pressure and the air pressure in the pipe in the drainage device 10 is increased to push up the stopper piece 12 when the drainage device 10 starts the drainage operation, the water in the pipe in the drainage device 10 is not spilled out of the drainage device through the vent hole 111. The stopper 12 can move to the first position a by the rising air pressure of the pipe in the drain device 10 to block the vent 111. In addition, after the drainage device 10 is operated for a period of time, the air pressure of the vent pipe 14 will decrease, and then the blocking piece 12 can move from the first position a to the second position b by its own weight, and then the vent 111 is opened, so as to ensure that the air pressure of the vent pipe 14 is consistent with the pressure of the external atmosphere, and prevent the siphon phenomenon.

In certain embodiments, the size of the one end opening 140 of the vent tube 14 is larger than the size of the vent 111. The planar dimensions of the flap 12 are greater than the dimensions of the one end opening 140 of the vent conduit 14. In this way, the size of the vent 111 is small, which can further prevent water in the drain 10 from overflowing through the vent 111 during the draining process. In addition, since the flat size of the flap 12 is large, the flap 12 has a large design margin, has a good sealing effect when blocking the vent 111, and can sufficiently cover the one end opening 140 of the vent duct 14.

In certain embodiments, the vent tube 14 is serpentine in shape. In this way, the resistance of the water in the inlet pipe 13 or the outlet pipe 15 to the air duct 14 can be increased, and the water is prevented from flowing out of the one end opening 140 of the air duct 14.

In certain embodiments, the vent conduit 14 includes a first conduit section 141 and a second conduit section 142. The second tubing section 142 is serpentine in shape. The second pipe section 142 connects the outlet pipe 15 and the first pipe section 141. The first duct section 141 tapers from the second duct section 142 towards the end opening 140 of the vent duct 14.

In this manner, the one end opening 140 of the airway tube 14 can be made smaller, and thus the flap 12 can be made smaller, to facilitate movement of the flap 12 between the first position a and the second position b. Furthermore, since the second duct section 142 is tapered and the flap 12 is located at the second position b, the contact area with the one end opening 140 of the vent duct 14 is small, so that the rising air pressure of the vent duct 14 can generate a large force on the flap 12 to make the flap 12 sufficiently close the vent hole 111 under the effect of the rising air pressure.

In certain embodiments, second conduit section 142 includes third conduit section 143 and fourth conduit section 144. The fourth pipe segment 144 has a meandering shape. The fourth tube section 144 connects the outlet tube 15 and the third tube section 143. Third pipe section 143 connects fourth pipe section 144 and first pipe section 141. The third line segment 143 tapers toward the first line segment 141. The length of the third pipe section 143 is less than the length of the first pipe section 141.

In this way, if the water in the pipe enters the air duct 14 during the drainage operation of the drainage device 10, the first pipe section 141 gradually increasing upward buffers the upward flow speed of the water flow, and the water entering the air duct 14 flows back to the outlet pipe 15.

In certain embodiments, the cross-sectional area of the portion of the fourth conduit segment 144 proximate to the outlet conduit 15 is less than the cross-sectional area of the portion of the fourth conduit segment 144 proximate to the third conduit segment 143. In this way, if the water in the pipe enters the air duct 14 during the drainage of the drainage device 10, the fourth pipe section 144 can buffer the upward flow speed of the water flow, and then the water entering the air duct 14 can flow back to the outlet pipe 15.

In some embodiments, the body 11 includes an annular plate 145 extending from the edge of the one end opening 140 of the vent tube 14 into the one end opening 140 of the vent tube 14. When the flap 12 is located at the second position b, the flap 12 is located on the annular plate 145. In this manner, the provision of the annular plate 145 can reduce the opening area of the one-end opening 140 of the air duct 14. Thus, when the rising air pressure of the air duct 14 is established, the flap 12 is subjected to a smaller force area, so that the flap 12 is fully movable to the first position a by the rising air pressure of the air duct 14.

In some embodiments, the inlet 130 of the inlet conduit 13 is positioned lower than the other end opening 1401 of the outlet conduit 15 to which the aeration conduit 14 is connected. The outlet 150 of the outlet tube 15 is positioned lower than the other end opening 1401 of the outlet tube 15 to which the vent tube 14 is connected. The water inlet pipe 13 and the water outlet pipe 15 are connected to form an inverted U shape. In this way, water entering the outlet conduit 15 from the inlet conduit 13 is prevented from being sucked back into the inlet conduit 13.

In certain embodiments, the drain 10 includes an extraction fan 16. The body 11 is provided with a mounting groove 17. The suction fan 16 is mounted to the mounting groove 17 and is formed with an air flow passage 161 communicating with the opening 110 of the mounting groove 17. The air flow channel 161 is separated from the inlet conduit 13, the vent conduit 14 and the outlet conduit 15. In this way, the opening 110 of the mounting groove 17 can be communicated with the washing chamber 21, and the air in the washing chamber 21 can be renewed by the operation of the suction fan 16, so that the drainage device 10 has the ventilation function at the same time. For example, when the washing appliance 100 enters the drying phase, the suction fan 16 may be turned on to refresh the wet gas inside the washing chamber 21 to promote drying.

In the present embodiment, the drain device 10 can be mounted to the inner container 20 through the opening 110 of the mounting groove 17. The opening 110 of the mounting groove 17 communicates with the washing chamber 21. The body 11 is opened with an exhaust port 18. The body 11 has an exhaust passage 181 formed therein. The exhaust passage 181 communicates with the exhaust port 18 and the air flow passage 161.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different features of the invention. The components and arrangements of the specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A drain for washing an appliance, the drain comprising:

the water outlet pipe is communicated with the water inlet pipe and the air vent pipe, the body is provided with an air vent communicated with the outside atmosphere, and the position of the air vent is higher than that of an opening at one end, far away from the water outlet pipe, of the air vent pipe;

a flap movably disposed between the vent opening and an end opening of the vent conduit, the flap configured to be movable between a first position and a second position, the flap blocking the vent opening when in the first position, the flap being positioned at the end opening of the vent conduit and opening the vent opening to communicate the vent opening with the vent conduit when in the second position;

the blocking piece is configured to move from the first position to the second position by means of the gravity of the blocking piece after the drainage device works for a period of time, and is configured to move from the second position to the first position by means of the rising air pressure of the air vent pipeline when the drainage device starts to work for drainage so as to block the air vent.

2. The drain of claim 1, wherein the baffle is a rubber sheet.

3. The drain of claim 1, wherein the size of the one end opening of the vent tube is larger than the size of the vent port, and the planar size of the flap is larger than the size of the one end opening of the vent tube.

4. The drain of claim 1, wherein the vent conduit is serpentine in shape.

5. The drain of claim 1, wherein the air vent conduit includes a first conduit section and a second conduit section, the second conduit section having a serpentine shape, the second conduit section connecting the outlet conduit and the first conduit section, the first conduit section tapering from the second conduit section toward the one end opening of the air vent conduit.

6. The drain of claim 5, wherein the second conduit section comprises a third conduit section and a fourth conduit section, the fourth conduit section is a serpentine shape, the fourth conduit section connects the outlet conduit and the third conduit section, the third conduit section connects the fourth conduit section and the first conduit section, the third conduit section tapers toward the first conduit section, and the third conduit section is shorter than the first conduit section.

7. The drain of claim 1, wherein the body includes an annular plate extending from an end opening edge of the air duct into an end opening of the air duct, the flap being positioned on the annular plate when the flap is in the second position.

8. The drainage device as claimed in claim 1, wherein the inlet of the inlet pipe is located lower than the opening of the other end of the air vent pipe connected to the outlet pipe, the outlet of the outlet pipe is located lower than the opening of the other end of the air vent pipe connected to the outlet pipe, and the inlet pipe and the outlet pipe are connected to form an inverted U shape.

9. The drain device according to claim 1, wherein the drain device comprises an air extractor, the body defines a mounting groove, the air extractor is mounted to the mounting groove and forms an air flow channel in communication with the opening of the mounting groove, and the air flow channel is separated from the water inlet conduit, the air vent conduit, and the water outlet conduit.

10. A washing appliance comprising a drain according to any of claims 1-9.

11. The washing appliance according to claim 10, wherein the washing appliance comprises an inner container, a washing chamber is formed in the inner container, the water inlet pipe is communicated with the washing chamber, and the water discharge device is installed on the inner container and located outside the washing chamber.