CN106811909B

CN106811909B - Drum washing machine

Info

Publication number: CN106811909B
Application number: CN201510893743.0A
Authority: CN
Inventors: 陈海波
Original assignee: Wuxi Little Swan General Appliance Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2015-11-27
Filing date: 2015-11-27
Publication date: 2020-01-17
Anticipated expiration: 2035-11-27
Also published as: CN106811909A

Abstract

The invention discloses a drum washing machine, which comprises an outer barrel, an inner barrel, a drain pipe and a water blocking piece, wherein the peripheral wall of the outer barrel is provided with a water inlet hole and a drain hole; the inner barrel is rotatably arranged in the outer barrel; the drain pipe is connected to the outer peripheral wall of the outer barrel and communicated with the drain hole; the water blocking piece is installed in the drainage hole and extends out of the inner peripheral wall surface of the outer barrel, a first water passing channel and a second water passing channel which are separated from each other and communicated with the drainage pipe respectively are arranged in the water blocking piece, the part, extending out of the water blocking piece, of the inner peripheral wall surface of the outer barrel is provided with a first water passing hole communicated with the first water passing channel and a second water passing hole communicated with the second water passing channel, and the first water passing hole and the second water passing hole are arranged in the circumferential direction of the outer barrel in a back-to-back mode. The drum washing machine has the advantages of high utilization rate of the detergent, high cleaning ratio of clothes, energy conservation and environmental protection.

Description

Drum washing machine

Technical Field

The invention relates to the technical field of washing equipment, in particular to a drum washing machine.

Background

The drum washing machine in the related art adopts the inclined tub rear water inlet mode, so that when the drum washing machine washes water, high-concentration washing water generated by water washing detergent directly enters an outer tub water outlet pipe of the drum washing machine, and the outer tub water outlet pipe is tubular (forwards extending or backwards extending) and is only connected with an outer tub through an interface, so that the contact area between the high-concentration washing water initially entering the outer tub water outlet pipe and the later entering clean water is small, and the high-concentration washing water and the water are slowly mixed. When the inner tub rotates, water in the inner tub flows along the inner tub according to a hydraulic principle and the flowing direction is along a tangential direction of the rotation of the inner tub, however, the agitation of the washing liquid in the drain pipe of the outer tub is small.

In summary, the related art drum washing machine has a low detergent utilization rate and a poor washing effect, and if a desired washing effect is achieved, the washing time is prolonged, electric energy is wasted, and the amount of detergent added is increased, which causes environmental pollution.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the present invention is to provide a drum washing machine having advantages of high detergent utilization rate, high cleaning ratio, energy saving, environmental protection, etc.

A drum washing machine according to an embodiment of the present invention includes: the outer barrel is provided with a water inlet hole and a water outlet hole on the peripheral wall; an inner tub rotatably provided in the outer tub; the drain pipe is connected to the outer peripheral wall of the outer barrel and communicated with the drain hole; and the water blocking part is arranged in the drainage hole and extends out of the inner peripheral wall surface of the outer barrel, a first water passing channel and a second water passing channel which are separated from each other and communicated with the drainage pipe respectively are arranged in the water blocking part, the part of the water blocking part extending out of the inner peripheral wall surface of the outer barrel is provided with a first water passing hole communicated with the first water passing channel and a second water passing hole communicated with the second water passing channel, and the first water passing hole and the second water passing hole are arranged in the circumferential direction of the outer barrel in a back-to-back mode.

According to the drum washing machine provided by the embodiment of the invention, the water flow in the outer barrel stirs the detergent deposited in the drain pipe to accelerate the dissolution of the detergent, and the washing water in the drain pipe is led out of the drain pipe, so that the utilization rate of the detergent is improved, the washing effect of the drum washing machine is enhanced, the washing time is shortened, the consumption of the detergent is reduced, the cleaning ratio of the drum washing machine can be improved, the electric energy is saved, and the environmental pollution is reduced.

According to some embodiments of the invention, the water deflector comprises: a side water baffle; the upper water baffle is arranged on the side water baffle; the main water baffle is respectively connected with the side water baffles and the upper water baffle, the side water baffles and the main water baffle jointly limit the first water passing channel, the second water passing channel, the first water passing hole and the second water passing hole are formed in the side water baffles.

In some embodiments of the present invention, the side water deflector has a ring-shaped cross section, and the first water passing holes and the second water passing holes respectively cut off the side water deflector in a circumferential direction of the side water deflector.

In some embodiments of the invention, the central axis of the first water passing hole and the central axis of the second water passing hole are coincident and perpendicular to the length direction of the upper water baffle.

In a further embodiment of the present invention, the main water deflector is vertically connected to the upper water deflector and a connection portion of the main water deflector and the upper water deflector extends along a length direction of the upper water deflector.

In an optional embodiment of the invention, the main water baffle is obliquely arranged relative to the bottom wall of the outer barrel, and an included angle between the main water baffle and the bottom wall of the outer barrel is alpha, wherein alpha is more than or equal to 30 degrees and less than or equal to 150 degrees.

In some embodiments of the present invention, the distance between the upper water baffle and the inner barrel in the radial direction of the inner barrel is H, and H is greater than or equal to 20 mm.

In some embodiments of the present invention, a distance between one side surface of the upper water deflector and an adjacent side surface of the main water deflector in the width direction of the upper water deflector is a, a distance between the other side surface of the upper water deflector and an adjacent side surface of the main water deflector in the width direction of the upper water deflector is B, where a is greater than 0 and less than or equal to 20mm, and B is greater than 0 and less than or equal to 20 mm.

In an optional embodiment of the invention, the distance between the side surface of the main water baffle facing the first water passing hole and the two side wall surfaces of the first water passing hole is A1, the distance between the side surface of the main water baffle facing the second water passing hole and the two side wall surfaces of the second water passing hole is B1, the distance is more than 0 and less than or equal to A1 and less than or equal to 20mm, and the distance is more than 0 and less than or equal to B1 and less than or equal to 20 mm.

In some embodiments of the present invention, at least one of the side splash plate and the main splash plate is interference-fitted, snapped, or bonded to the drain hole.

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

Fig. 1 is a sectional view of a drum washing machine according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of section C circled in FIG. 1;

fig. 3 is a sectional view of a drum washing machine according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the circled portion D of FIG. 3;

fig. 5 is a sectional view of an outer tub of the drum washing machine according to an embodiment of the present invention.

Reference numerals:

the drum type washing machine 100 is provided with,

an outer barrel 1, a drain hole 10, an inner barrel 2, a drain pipe 3,

a water blocking member 4, a side water blocking plate 41, a first water passing hole 411, a second water passing hole 422, an upper water blocking plate 42, a main water blocking plate 43, a first water passing channel 44, a second water passing channel 45,

the water inlet pipe 5, the water flow E driven by the inner barrel, the descending water flow F, a first water flow F1 and a second water flow F2.

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 or similar 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.

The drum washing machine 100 according to the embodiment of the present invention is described below with reference to fig. 1 to 5, and the drum washing machine 100 has the advantages of high detergent utilization rate, high cleaning ratio, energy saving, environmental protection, and the like.

As shown in fig. 1 to 5, a drum washing machine 100 according to an embodiment of the present invention includes an outer tub 1, an inner tub 2, a drain pipe 3, and a water blocking member 4.

The outer tub 1 is provided with a water inlet hole and a water discharge hole 10 on a peripheral wall thereof, the inner tub 2 is rotatably provided in the outer tub 1, and the water discharge pipe 3 is connected to the outer peripheral wall of the outer tub 1 and communicates with the water discharge hole 10. The water blocking member 4 is installed in the water discharging hole 10 and extends out of the inner peripheral wall surface of the outer tub 1, the water blocking member 4 has a first water passing channel 44 and a second water passing channel 45 separated from each other and respectively communicated with the water discharging pipe 3, a first water passing hole 411 communicated with the first water passing channel 44 and a second water passing hole 412 communicated with the second water passing channel 45 are provided on the portion of the water blocking member 4 extending out of the inner peripheral wall surface of the outer tub 1, and the first water passing hole 411 and the second water passing hole 412 are arranged in a reverse direction in the circumferential direction of the outer tub 1, that is, the opening directions of the first water passing hole 411 and the second water passing hole 412 are opposite.

When the drum washing machine 100 is operated to supply water, the water enters the outer tub 1 through the water inlet hole. When the inner tub 2 rotates, the inner tub 2 may move water attached to the outer circumferential wall surface of the inner tub 2 due to friction between the inner tub 2 and water contacting thereto. And since there is viscosity between water and water, the water driven by the rotating inner tub 2 moves relatively far from the inner tub 2, and the flow velocity of the water has a gradient, that is, the flow velocity of the water farther from the inner tub 2 is lower. It can be understood that the flow velocity of the water farthest from the inner tub 2 is zero. Since the water blocking member 4 protrudes from the inner circumferential wall surface of the outer tub 1, water can flow into the drain pipe 3 through one of the first water passage 44 and the second water passage 45 under the blocking of the water blocking member 4, thereby agitating the washing water in the drain pipe 3 to promote the dissolution of the detergent and carrying the washing water in the drain pipe 3 out of the outer tub 1 through the other of the first water passage 44 and the second water passage 45.

Specifically, as shown in fig. 1-2, when the inner barrel 2 rotates clockwise, the water current E driven by the inner barrel 2 flows clockwise along with the inner barrel 2, the water current E meets the water blocking member 4 and enters the first water passing channel 44 through the first water passing hole 411, and most of the water current E flows downward along the first water passing channel 44 due to the blocking of the water blocking member 4, so as to form a descending water current F. When the water flow F flows downwards to the bottom wall of the drain pipe 3, the water flow F is blocked by the drain pipe 3 and is divided into a first water flow F1 and a second water flow F2, wherein the first water flow F1 flows upwards into the second water passage 45 and carries the washing water in the drain pipe 3 out through the second water passing holes 412, and the second water flow F2 continues to flow into the drain pipe 3, so that disturbance to the washing water in the drain pipe 3 is formed, and the dissolution of the detergent in the drain pipe 3 is accelerated. The entire flow path of the water flow is shown by the arrows in the figure.

Similarly, as shown in fig. 3-4, when the inner barrel 2 rotates in the counterclockwise direction, the water current E driven by the inner barrel 2 flows along the counterclockwise direction along with the inner barrel 2, the water current E meets the water blocking member 4 and enters the second water passing channel 45 through the second water passing holes 412, and most of the water current E flows downward along the second water passing channel 45 due to the blocking of the water blocking member 4, so as to form a descending water current F. When the water flow F flows downward to the bottom wall of the drain pipe 3, the water flow F is blocked by the drain pipe 3 and is divided into a first water flow F1 and a second water flow F2, wherein the first water flow F1 flows upward into the first water passage 44 and carries the washing water in the drain pipe 3 out through the first water passing holes 411, and the second water flow F2 continues to flow into the drain pipe 3, so that disturbance to the washing water in the drain pipe 3 is formed and the dissolution of the detergent in the drain pipe 3 is accelerated. The entire flow path of the water flow is shown by the arrows in the figure.

According to the drum washing machine 100 of the embodiment of the present invention, the water flow in the outer tub 1 agitates the detergent deposited in the drain pipe 3 to accelerate the dissolution of the detergent and takes the washing water in the drain pipe 3 out of the drain pipe 3 by the rotation of the water blocking member 4 and the inner tub 2 installed in the drain hole 10 and protruding out of the inner circumferential wall surface of the outer tub 1, thereby improving the utilization rate of the detergent, enhancing the washing effect of the drum washing machine 100, shortening the washing time, reducing the amount of the detergent, improving the washing ratio of the drum washing machine 100, saving electric power, and reducing environmental pollution.

As shown in fig. 1 to 4, according to some embodiments of the present invention, the water guard 4 may include a side water guard 41, an upper water guard 42 and a main water guard 43, the upper water guard 42 is provided on the side water guard 41, the main water guard 43 is connected to the side water guard 41 and the upper water guard 42, respectively, the upper water guard 42, the side water guard 41 and the main water guard 43 together define a first water passing channel 44 and a second water passing channel 45, and a first water passing hole 411 and a second water passing hole 412 are provided on the side water guard 41. Thereby, the water flow E can flow into the drain pipe 3 along one of the first and second water passage 44 and 45 and flow out of the drain pipe 3 along the other of the first and second water passage 44 and 45 under the common blocking of the upper water guard 42, the side water guard 41, and the main water guard 43.

In some embodiments shown in fig. 1 to 5, the side water baffle 41 may have a ring shape in cross section, and the first water passing hole 411 and the second water passing hole 412 cut off the side water baffle 41 in the circumferential direction of the side water baffle 41, for example, the first water passing hole 411 and the second water passing hole 412 penetrate the side water baffle 41 in the up-down direction, so that the water inlet area of the water baffle 4 can be ensured, and the resistance of the water flow E entering the water baffle 4 can be reduced.

As shown in fig. 1 to 5, in some embodiments of the present invention, the central axis of the first water passing hole 411 and the central axis of the second water passing hole 412 are coincident and perpendicular to the length direction of the upper water baffle 42, that is, the opening directions of the first water passing hole 411 and the second water passing hole 412 are perpendicular to the length direction of the upper water baffle 42, so that more water flows E can enter the water baffle 4 through the first water passing hole 411 or the second water passing hole 412, and thus more water flows E can form a descending water flow F, thereby enhancing the effect of the water baffle 4 in stirring water flows.

In a further embodiment as shown in fig. 1 to 5, the main baffle 43 and the upper baffle 42 may be vertically connected and the connection of the main baffle 43 and the upper baffle 42 extends along the length of the upper baffle 42, thus facilitating assembly and enhancing the stirring effect of the water flow.

As shown in fig. 5, in an alternative embodiment of the present invention, the main water baffle 43 is disposed obliquely relative to the bottom wall of the outer tub 1, and an included angle between the main water baffle 43 and the bottom wall of the outer tub 1 is α, which is greater than or equal to 30 ° and less than or equal to 150 °. In this way, more water flow E can enter the water deflector 4, thereby enhancing the stirring effect of the water deflector 4 on the water flow. For example, an angle between a tangent x to the bottom wall of the outer tub 1 in the left-right direction and an imaginary straight line z parallel to the width direction of the main water baffle 43 is α, preferably 60 ° ≦ α ≦ 120 °, so that the water deflector 4 most effectively agitates the water flow.

In some embodiments of the present invention, the distance between the upper water deflector 42 and the inner barrel 2 in the radial direction of the inner barrel 2 is H, H ≧ 20mm, thereby enabling to avoid abrasion of the inner barrel 2 caused by contact of the inner barrel 2 with the upper water deflector 42 while rotating.

In some embodiments as shown in fig. 2, a distance between one side surface of the upper water baffle 42 and the side surface of the adjacent main water baffle 43 in the width direction of the upper water baffle 42 is a, a distance between the other side surface of the upper water baffle 42 and the side surface of the adjacent main water baffle 43 in the width direction of the upper water baffle 42 is B, where a is greater than 0 and less than or equal to 20mm, and B is greater than 0 and less than or equal to 20mm, which is beneficial for the water blocking member 4 to block the water flow E and make the water flow E flow downward. Preferably, A is more than 8 and less than or equal to 12mm, and B is more than 8 and less than or equal to 12 mm.

In an alternative embodiment as shown in fig. 5, the distances between the side of the main water baffle 43 facing the first water passing hole 411 and the two side walls of the first water passing hole 411 are both a1, the distances between the side of the main water baffle 43 facing the second water passing hole 412 and the two side walls of the second water passing hole 412 are both B1, 0 < a1 < 20mm, and 0 < B1 < 20mm, which is beneficial for the water blocking member 4 to block the water flow E and enable the water flow E to flow downwards. Preferably, 8 < A1 < 12mm, 8 < B1 < 12 mm. It is understood that A1 may or may not be equal to A, and B1 may or may not be equal to B.

In some embodiments of the present invention, at least one of the side water deflector 41 and the main water deflector 43 may be interference-fitted, snapped, or bonded to the drain hole 10, thus facilitating the assembly of the water deflector 4. For example, the side water deflector 41 is interference-fitted, clamped or adhered to the drain hole 10, or the main water deflector 43 is interference-fitted, clamped or adhered to the drain hole 10, but the main water deflector 43 may also be interference-fitted, clamped or adhered to the drain pipe 3.

The drum washing machine 100 according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings, it being understood that the following description is illustrative only and not to be construed as limiting the present invention.

The peripheral wall of the outer barrel 1 is provided with a water inlet hole and a water drain hole 10, the water inlet pipe 5 is connected to the peripheral wall of the outer barrel 1 and communicated with the water inlet hole, and the water drain pipe 3 is connected to the peripheral wall of the outer barrel 1 and communicated with the water drain hole 10. The inner tub 2 is rotatably provided in the outer tub 1. The water blocking member 4 comprises a side water blocking plate 41, an upper water blocking plate 42 and a main water blocking plate 43, the cross section of the side water blocking plate 41 is annular, the first water passing hole 411 and the second water passing hole 412 respectively cut off the side water blocking plate 41 in the circumferential direction of the side water blocking plate 41, the opening directions of the side water blocking plate 41 and the main water blocking plate are opposite, the upper water blocking plate 42 is arranged on the side water blocking plate 41, and the central axis of the first water passing hole 411 and the central axis of the second water passing hole 412 are overlapped and are perpendicular to the length direction of the upper water blocking plate 42. The main water guard 43 is installed in the drain hole 10, the main water guard 43 is disposed obliquely with respect to the bottom wall of the outer tub 1, the upper end of the main water guard 43 extends out of the inner peripheral wall surface of the outer tub 1 and is connected to the side water guard 41 and the upper water guard 42, respectively, the main water guard 43 is perpendicular to the upper water guard 42, and the width direction of the main water guard 43 is parallel to the length direction of the upper water guard 42. The upper water baffle 42, the side water baffles 41 and the main water baffle 43 together define a first water passing channel 44 and a second water passing channel 45, the first water passing channel 44 and the second water passing channel 45 are separated by the main water baffle 43, the first water passing channel 44 is communicated with the drain pipe 3 and the first water passing hole 411, and the second water passing channel 45 is communicated with the drain pipe 3 and the second water passing hole 412.

According to the drum washing machine 100 of the embodiment of the invention, the water flow is driven to flow by the rotation of the inner tub 2, and after the water flow is blocked by the water blocking member 4 in the flow direction, the water flow can enter the drain pipe 3 to stir the washing water in the drain pipe 3, so that the dissolution of the detergent in the drain pipe 3 is accelerated, and the washing water in the drain pipe 3 can be brought out into the outer tub 1, thereby improving the utilization rate of the detergent and the washing ratio of the drum washing machine 100, and being energy-saving and environment-friendly.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "bottom," "inner," "outer," "clockwise," "counterclockwise," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "a specific embodiment," "an alternative embodiment," "a further embodiment," "an example" or "some examples" or the like are intended to mean 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 invention. In this specification, the schematic representations of the terms used above 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 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 drum washing machine characterized by comprising:

the outer barrel is provided with a water inlet hole and a water outlet hole on the peripheral wall;

an inner tub rotatably provided in the outer tub;

the drain pipe is connected to the outer peripheral wall of the outer barrel and communicated with the drain hole; and

the water retaining piece is arranged in the drainage hole and extends out of the inner peripheral wall surface of the outer barrel, a first water passing channel and a second water passing channel which are separated from each other and are respectively communicated with the drainage pipe are arranged in the water retaining piece, a first water passing hole communicated with the first water passing channel and a second water passing hole communicated with the second water passing channel are arranged on the part of the water retaining piece extending out of the inner peripheral wall surface of the outer barrel, the first water passing hole and the second water passing hole are arranged in the circumferential direction of the outer barrel in a back-to-back mode, and the part of the water retaining piece used for separating the first water passing channel and the second water passing channel is arranged towards the bottom wall of the drainage pipe,

the water blocking member includes:

a side water baffle;

the upper water baffle is arranged on the side water baffle;

the main water baffle is respectively connected with the side water baffles and the upper water baffle, the side water baffles and the main water baffle jointly limit the first water passing channel, the second water passing channel, the first water passing hole and the second water passing hole are formed in the side water baffles.

2. A drum washing machine according to claim 1, characterized in that the side water baffle is annular in cross section, and the first and second water passing holes cut off the side water baffle in a circumferential direction of the side water baffle, respectively.

3. A drum washing machine according to claim 1, characterized in that the central axis of the first water passing hole and the central axis of the second water passing hole are coincident and perpendicular to the length direction of the upper water baffle.

4. A drum washing machine according to claim 1, characterized in that the main baffle is vertically connected with the upper baffle and the connection of the main baffle and the upper baffle extends along the length direction of the upper baffle.

5. A drum washing machine according to any one of claims 1-4, characterized in that the main water baffle is arranged obliquely relative to the bottom wall of the outer tub and the included angle between the main water baffle and the bottom wall of the outer tub is α, 30 ° ≦ α ≦ 150 °.

6. A drum washing machine according to any one of claims 1-4, characterized in that the distance between the upper water baffle and the inner tub in the radial direction of the inner tub is H, H is not less than 20 mm.

7. A drum washing machine according to any one of claims 1-4, characterized in that the distance between one side of the upper water baffle and the adjacent side of the main water baffle in the width direction of the upper water baffle is A, the distance between the other side of the upper water baffle and the adjacent side of the main water baffle in the width direction of the upper water baffle is B, 0 & ltA & lt 20mm, 0 & ltB & lt 20 mm.

8. The drum washing machine according to any one of claims 1-4, wherein the distance between the side of the main water baffle facing the first water passing hole and both sidewalls of the first water passing hole is A1, the distance between the side of the main water baffle facing the second water passing hole and both sidewalls of the second water passing hole is B1, 0 < A1 ≦ 20mm, 0 < B1 ≦ 20 mm.

9. A drum washing machine according to claim 1, characterized in that at least one of the side and main water baffles is interference fit, snap fit or glued to the drain hole.