JP7177160B2 - washing machine - Google Patents

Description

TECHNICAL FIELD The present invention belongs to the technical field of washing machines, and more particularly, to an outer tub of a washing machine and a washing machine.

Currently, in order to improve the washing ratio of clothes, washing machines have added a spray washing function that reuses the water stored in the outer tank and sprays it on the clothes in the inner tank to wash the clothes more cleanly. It is A washing machine with a spray function is usually equipped with a circulation pump, which draws water from the bottom of the outer tub up to the lid of the outer tub and discharges it from the lid to form a spray-like stream. Generally, the outer tub lid includes a water inlet, a water chamber and a spout. The water flow enters the water chamber of the outer tank cover from the water supply port, and the water concentrated in the water chamber is discharged from the water discharge port to spray.

The outer tub of prior art pulsator washing machines is typically provided with an open overflow. Such a construction may interfere with the spray effect when the washing machine performs the spray cleaning function. And there is a safety risk as the water stream may be discharged from the overflow port.

Therefore, there is an urgent need for a washing machine outer tub that is applicable to washing machines with a spray cleaning function and that can effectively prevent unexpected water overflow.

In view of the above, the present invention is proposed.

SUMMARY OF THE INVENTION An object of the present invention is to overcome the defects of the prior art and to provide an outer tub structure for a washing machine. The outer tub of the washing machine described above not only can prevent the unexpected overflow of water from the washing machine, but is also suitable for washing machines with a spray washing function. In addition, since it contributes to the improvement of the spray cleaning effect without fabricating a new mold, it has excellent applicability.

In order to solve the above technical problems, the basic idea of the technical scheme adopted in the present invention will be described below.

It is an outer tub of a washing machine and has an overflow port at the top. A blocking rib positioned below the overflow port is provided on the inner wall of the outer tub of the washing machine. The dam rib extends from bottom to top to block the overflow opening with an overflow gap between the overflow opening and the dam rib.

Preferably, the damming rib is integrally molded or detachably connected to the inner wall of the outer tub of the washing machine.

Preferably, the upper edge of the damming rib is located above the upper edge of the overflow port, and the length of the damming rib extending in the circumferential direction of the outer tub of the washing machine is equal to or greater than the length of the overflow port. there is

Preferably, the lower edge of the damming rib is integrally formed with the inner wall of the outer tub of the washing machine, and both the upper edge and both sides extending in the circumferential direction of the outer tub of the washing machine are free ends. .

Alternatively, the damming rib has one or both of both sides extending in the circumferential direction of the outer tub of the washing machine integrally formed with the inner wall of the outer tub of the washing machine, and the lower edge and the upper edge are free ends. It's becoming

Preferably, an outwardly recessed groove structure is formed between the damming rib and the inner wall surface of the washing machine.

Preferably, the recessed groove structure includes two side walls connected to the inner wall of the outer tub of the washing machine and a recessed wall connected between the two side walls. The side wall and the inner wall and concave wall of the outer tub of the washing machine are all connected through arcs.

Preferably, the overflow port is provided in a space projecting from the outer peripheral wall of the outer tub of the washing machine. Moreover, the cross section of the space has a substantially triangular structure.

Preferably, the upper edge of the damming rib has a curvilinear structure, more preferably an S-shaped structure.

Preferably, the overflow port is a plurality of linear slits provided in the inner wall of the outer tub of the washing machine and extending in the axial direction of the outer tub of the washing machine.

Preferably, the linear slits are positioned on a plurality of different planes, and preferably the planes on which the plurality of linear slits are positioned form a wave shape as a whole.

Another object of the present invention is to provide a washing machine. The washing machine has an outer tub of any of the washing machines described above, and has a function of washing clothes by raising water stored in the outer tub and spraying the water onto the inner tub. .

Preferably, the washing machine has an outer tub lid including an upper lid and a lower lid, and the upper lid and the lower lid are connected to form a water chamber. The outer tank lid has a water supply port and is provided with an overflow protection structure on the top. The overflow protection structure guides the water overflowing when the water chamber is full to the outside of the outer tub of the washing machine in a fixed direction.

More preferably, the overflow protection structure is a drainage channel installed on the upper surface of the outer tank lid. The drainage path has a guiding structure that guides the overflowing water to the outside of the outer tank in a fixed direction.

By using the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

INDUSTRIAL APPLICABILITY The outer tub of the washing machine according to the present invention is excellent in safety and reliability because it is possible to avoid a situation in which water flow unexpectedly overflows to the outside of the washing machine. It is also suitable for washing machines with a spray cleaning function. Moreover, since there is no need to fabricate a new mold, research and development and manufacturing costs can be reduced. In particular, it contributes to the improvement of the spray cleaning effect, and the clothes cleaning effect becomes better, so it is excellent in applicability.

The outer tub of the washing machine of the present invention is further linked with an outer tub lid having an overflow protection structure, so that the water supply is continued while the washing machine is in an abnormal state, and the water overflows. In this case, the overflowing water can be discharged in a predetermined direction to a portion where there are no electronic parts between the outer tub and the housing of the washing machine. This avoids hazards and makes it even safer and more reliable. In addition, since the overflow protection structure is simple and space-saving, it is easy to increase the capacity of the washing machine and the cost is low.

Specific embodiments of the present invention will be described in more detail below in combination with the drawings.

The drawings are part of the invention and are used for a further understanding of the invention. Also, the schematic embodiments of the invention and their descriptions are used for the interpretation of the invention, but do not unduly limit the invention. It should be understood that the drawings described below are only part of the examples, and those skilled in the art can derive further drawings from these drawings without creative effort.

FIG. 1 is a diagram showing an exploded structure of an assembly of an outer tub and an outer tub lid of a washing machine described in the present invention. FIG. 2 is an exploded view showing the assembly of the outer tub and outer tub lid of the washing machine described in the present invention. FIG. 3 is a diagram showing a structure in which the outer tub and the outer tub cover of the washing machine described in the present invention are integrally assembled. FIG. 4 is an enlarged view of a partial structure of the outer tub of the washing machine described in the present invention. FIG. 5 is a diagram showing the damming ribs and overflow ports described in the present invention.

It should be noted that these drawings and text descriptions are not intended to limit the scope of the inventive concept in any way, but rather to explain the inventive concepts to those skilled in the art with reference to specific embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments will be described clearly and concisely in combination with the drawings of the embodiments of the present invention. It should be noted that the following examples are for the purpose of explaining and detailing the present invention, and are not intended to limit the scope of the present invention.

Directions or positions indicated in the description of the present invention by terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "inner", "outer", etc. Relationships are directional or positional relationships based on the drawings, and are merely for convenience and simplification of description of the present invention, and subject devices or members have specific orientations and specific orientations. It does not express or imply that it must be configured and operated in any direction. As such, it should not be construed as limiting the invention.

In describing the present invention, the terms "attached", "connected", and "connected" should be interpreted broadly, unless explicitly defined and limited otherwise. For example, it may be a fixed connection, a removable connection, or an integral connection. Also, the connection may be mechanical or electrical. Furthermore, it may be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can interpret the specific meanings of the above terms in the present invention according to specific situations.

The outer tub of the washing machine is provided with an overflow port 4 at the top. A blocking rib 2 located below the overflow port 4 is provided on the inner wall of the outer tub 1 of the washing machine. The damming rib 2 extends from bottom to top to block the overflow opening 4 with an overflow gap between the overflow opening 4 and the damming rib 2 .

The damming rib 2 is integrally molded or detachably connected to the inner wall of the outer tub 1 of the washing machine.

The upper edge of the damming rib 2 is positioned above the upper edge of the overflow port 4, and the length of the damming rib 2 extending in the circumferential direction of the outer tub 1 of the washing machine is equal to or greater than the length of the overflow port 4. It's becoming

Preferably, the damming rib 2 has a lower edge integrally formed with the inner wall of the outer tub 1 of the washing machine, and both upper edges and both sides extending in the circumferential direction of the outer tub 1 of the washing machine are free ends. It has become.

Alternatively, the damming ribs 2 are integrally formed on the inner wall of the outer tub 1 of the washing machine at one or both of both sides extending in the circumferential direction of the outer tub 1 of the washing machine, and the lower edge and the upper edge are It has a free end.

An outwardly recessed groove structure is formed between the damming rib 2 and the inner wall surface of the washing machine.

The concave groove structure includes two side walls connected to the inner wall of the outer tub 1 of the washing machine and a concave wall connected between the two side walls. The side wall and the inner wall and concave wall of the outer tub 1 of the washing machine are all connected through arcs.

The overflow port 4 is provided in a space projecting from the outer peripheral wall of the outer tub 1 of the washing machine. Moreover, the cross section of the space has a substantially triangular structure.

Since the space can protect the overflow port 4, damage to the overflow port 4 due to collision between the outer tub 1 of the washing machine and the frame structure can be prevented. In addition, the space has a substantially triangular cross-section, and the apex of the triangle can exert a certain supporting effect. Therefore, the mounting of the outer tub of the washing machine becomes more stable, and there is no need to increase the mounting space.

Preferably, the upper edge of the damming rib 2 has a curvilinear structure, more preferably an S-shaped structure.

The overflow port 4 is a plurality of linear slits provided in the inner wall of the outer tub 1 of the washing machine and extending in the axial direction of the outer tub 1 of the washing machine.

The linear slits are positioned on a plurality of different planes, and preferably the planes on which the plurality of linear slits are positioned form a wave shape as a whole.

Another object of the present invention is to have the outer tub 1 of the washing machine as described above, and to wash clothes by raising the water stored in the outer tub and spraying it on the inner tub. To provide a washing machine with

The washing machine has an outer tub lid 3 including an upper lid and a lower lid, and the upper lid and the lower lid are connected to form a water chamber. The outer tub lid 3 has a water supply port and is provided with an overflow protection structure 301 on the top. The overflow protection structure 301 guides the water overflowing when the water chamber is full to the outside of the outer tub 1 of the washing machine in a fixed direction.

The overflow protection structure 301 is a drainage path installed on the upper surface of the outer tub lid 3 . The drainage path has a guiding structure that guides the overflowing water to the outside of the outer tank in a fixed direction.

The outer tub 1 of the washing machine includes an overflow port 4 provided at the top. A blocking rib 2 extending upward from the bottom to block the overflow port 4 is provided on the inner wall of the lower portion corresponding to the overflow port 4 .

The damming rib 2 is integrally molded or detachably connected to the inner wall of the outer tub 1 of the washing machine.

By providing the damming ribs 2 on the inner wall of the outer tub 1 of the washing machine, it is possible to effectively prevent water from overflowing to the outside during normal operation of the washing machine, such as spray washing or dehydration. Further, by providing the damming rib 2 on the inner wall of the outer tub 1 of the washing machine, it is possible to avoid an increase in research and development costs for the washing machine. In addition, since it is not necessary to increase the volume of the outer tub of the washing machine or other members of the washing machine (for example, the outer tub cover), the inconvenience of installing the outer tub 1 of the new type of washing machine can be avoided.

Since the damming rib 2 is obtained by being integrally formed with the inner wall of the outer tub 1 of the washing machine, the structure is more solid and reliable, and there is no need to provide any other auxiliary mounting structure. In addition, the appearance is excellent, and the manufacturing cost can be suppressed.

Further, the damming rib 2 may be a replaceable and detachable member, and may be detachably connected to the inner wall of the outer tub 1 of the washing machine to improve independent selectivity. In this case, it is possible to produce the damming rib 2 of the washing machine according to the difference in function only by producing replaceable inserts in the mold. In addition, the cost can be further reduced, and the mounting method can be simple and quick.

The detachable connections may be selected from one or more combinations of engagement, bolted or threaded connections.

The upper edge of the damming rib 2 is positioned above the upper edge of the overflow port 4, and the length of the damming rib 2 extending in the circumferential direction of the outer tub 1 of the washing machine is equal to or greater than the length of the overflow port 4. It's becoming

An outwardly recessed groove structure is formed between the damming rib 2 and the inner wall surface of the washing machine.

As a structural feature, the damming ribs 2 cooperate with the rotation speed of the motor of the washing machine when the washing machine performs the spray washing function, so that the water flow for the upward spray can be better controlled by the washing machine. Make it possible to enter the outer tank. As a result, the water flow for the spray becomes continuous, the spray effect is improved, and the load on the motor is reduced.

The concave groove structure includes two side walls connected to the inner wall of the outer tub 1 of the washing machine and a concave wall connected between the two side walls. The side wall and the inner wall and concave wall of the outer tub 1 of the washing machine are all connected through arcs.

The concave groove structure not only contributes to improving the effect of rising water flow, but also makes the structure of the damming rib 2 more solid and reliable.

The upper edge of the damming rib 2 has a curvilinear structure, preferably an S-shaped structure.

Since the upper edge of the damming rib 2 has a curved structure, it is easy to block the water discharged toward the overflow port 4 during high-speed operation of the washing machine, and the washing machine is safer and more reliable.

The overflow port 4 is a plurality of linear slits provided in the inner wall of the outer tub 1 of the washing machine and extending in the axial direction of the outer tub 1 of the washing machine.

The linear slits are positioned on a plurality of different planes, and preferably the planes on which the plurality of linear slits are positioned form a wave shape as a whole.

By forming the overflow port 4 with a plurality of linear slits and not providing it on one plane, when the water flow rises to the limit in an unexpected situation, the overflow from the overflow port 4 is possible, so the water is more drained. On the other hand, when the washing machine is performing the spray cleaning function and the motor is running normally at high speed, even if a small amount of water is swept out to the overflow port 4, the corrugated surface The ability to shut off avoids the loss of water due to overflow, which reduces the effectiveness of the spray cleaning.

Another object of the present invention is to have the outer tub 1 of the washing machine as described above, and to wash clothes by raising the water stored in the outer tub and spraying it on the inner tub. To provide a washing machine with

As a preferred technical means, the washing machine has an outer tub lid 3 including an upper lid and a lower lid, and the upper lid and the lower lid are connected to form a water chamber. The outer tub lid 3 has a water supply port and is provided with an overflow protection structure 301 on the top. The overflow protection structure 301 guides the water overflowing when the water chamber is full to the outside of the outer tub 1 of the washing machine in a fixed direction.

Preferably, the overflow protection structure 301 is a drainage path installed on the upper surface of the outer tub lid 3 . The drainage path has a guiding structure that guides the overflowing water to the outside of the outer tank in a fixed direction.

By using the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

The outer tub 1 of the washing machine of the present invention is excellent in safety and reliability because it is possible to avoid a situation in which the water stream unexpectedly overflows outside the washing machine. It is also suitable for washing machines with a spray cleaning function. Moreover, since there is no need to fabricate a new mold, research and development and manufacturing costs can be reduced. In particular, it contributes to the improvement of the spray cleaning effect, and the clothes cleaning effect becomes better, so it is excellent in applicability.

The outer tub 1 of the washing machine of the present invention further cooperates with the outer tub lid 3 having the overflow protection structure 301, so that the water supply is continued while the washing machine is in an abnormal state, and the water becomes full. When the washing machine overflows, the overflowing water can be discharged in a fixed direction to a portion where there are no electronic parts between the outer tub and the housing of the washing machine. This avoids hazards and makes it even safer and more reliable. In addition, since the overflow protection structure 301 is simple and space-saving, it is easy to increase the capacity of the washing machine and the cost is low.

The present embodiment differs from the second embodiment in that the outer tub lid 3 of the washing machine is designed more excellently based on the basic idea of the second embodiment.

The outer tank lid 3 includes an upper lid body and a lower lid body, and the upper lid body and the lower lid body are connected to form a water chamber. The outer tank lid 3 has a water supply port. In addition, an overflow protection structure 301 is provided on the upper portion of the outer tank lid 3 . The overflow protection structure 301 guides the water overflowing when the water chamber is full to the outside of the outer tank in a fixed direction. The overflow protection structure 301 guides the water that has overflowed due to an abnormal supply of water into the water chamber to a portion where there are no electronic components between the outer tub and the housing of the washing machine in a fixed direction.

The overflow protection structure 301 is a drain hole provided in the upper cover body and communicating with the upper part of the water chamber.

A damming rib 2 is provided inside the water chamber so as to face the drain hole. The damming rib 2 includes a first portion that blocks the lower portion of the drain hole, and a second portion that extends from the upper end of the first portion and bends toward the inner peripheral wall of the water chamber.

Outside the drain hole, a plurality of grid ribs extending from the bottom end of the drain hole to the upper surface of the outer tank lid 3 and penetrating the height of the drain hole are provided, and two adjacent grid ribs are provided. An independent drainage path is formed between

At the bottom end of the drain hole, an arc-shaped reinforcing rib is provided along the circumferential direction of the side peripheral wall of the outer tank lid 3 .

A plurality of spouts are provided on the inner peripheral wall of the water chamber. Further, a water equalizing rib whose length extends along the circumferential direction of the outer tank lid 3 is provided at a communicating portion between the water chamber and the water supply port. The water that has entered is intercepted by the water equalizing ribs, diverges toward the water chambers on both sides of the water inlet, and is evenly sprayed from each water outlet into the inner tank.

The water equalizing ribs are provided on the inner surface of the upper lid or the lower lid. In addition, the water equalizing rib separates the water supply port from the water discharge port on the inner peripheral wall of the water chamber facing the water supply port.

The water equalizing ribs include an intermediate rib, and left and right ribs provided on both left and right sides of the intermediate rib. The central axis of the intermediate rib overlaps with the central axis of the water inlet. The length of the intermediate rib is equal to or greater than the width of the water supply at the portion where the water supply port communicates with the water chamber. The lower end surface of the intermediate rib and the inner surface of the lower lid, or the upper end surface and the inner surface of the upper lid are in sealing contact.

The inner peripheral wall of the water chamber is provided with a plurality of water discharge holes, and the outer tank lid 3 is provided with a water supply port. Water enters the water chamber from the water supply port and is sprayed into the inner tank via the water discharge hole.

Each water discharge hole is independent and uniformly arranged on the inner peripheral wall of the water chamber. Alternatively, the water discharge holes may be a plurality of water discharge hole groups uniformly arranged on the inner peripheral wall of the water chamber, and each water discharge hole group includes at least two water discharge holes.

The intervals between the water discharge holes in each water discharge hole group may or may not be the same.

The intervals between the water discharge hole groups may or may not be the same.

The technical means of this embodiment have the following beneficial effects.

The outer tub lid 3 having the overflow protection structure 301 described above is designed to direct the overflowing water in a fixed direction when the water is full and overflows because the water supply is continued while the washing machine is malfunctioning. can be guided to a portion where there are no electronic parts between the outer tub and the housing of the washing machine. This avoids hazards and makes it even safer and more reliable.

Since the overflow protection structure 301 of the outer tub cover 3 having the overflow protection structure 301 is simple and space-saving, it is easy to increase the capacity of the washing machine and the cost is low.

By using a drainage hole provided in the outer tub lid 3 as a flood protection structure 301 and providing a damming rib 2, the water entering during abnormal operation of the washing machine becomes full and overflows to the electronic parts, causing danger. It is possible to avoid the situation with In addition, it is possible to prevent the water in the outer tub cover 3 from being discharged during the normal spin-drying operation of the washing machine.

Since the water equalizing rib is provided at the communicating portion between the water supply port and the water chamber, the water pressure in each water discharge portion in the water chamber of the outer tank lid 3 can be effectively made uniform. In particular, the water pressure can be made uniform in the vicinity of the water supply port and in different parts separated from the water supply port. This ensures that each spout in the water chamber of the outer tank lid 3 has an appropriate water pressure and that the water flow in the outer tank lid 3 sprays more uniformly, thus improving the spray cleaning effect. It is easy to wash, and the washing rate of clothes is improved.

Since the structure of the water equalizing rib is simple, it not only saves cost but also does not impair the volume of the water chamber of the outer tank lid 3. In addition, since there are multiple options for installing the water leveling ribs, it is more flexible, easier to control, and has excellent applicability.

Each water discharge hole is independent and uniformly arranged on the inner peripheral wall of the water chamber. Alternatively, the water discharge holes may be a plurality of water discharge hole groups uniformly arranged on the inner peripheral wall of the water chamber, and each water discharge hole group includes at least two water discharge holes. This can ensure that the water flow for the spray is more uniform and reliable. In addition, since the jetted water stream has a stronger impact force, it is possible to improve the spray cleaning effect on clothes, and the clothes cleaning effect is further improved.

In the washing machine, when an abnormality occurs in the operation, water overflows from the outer tub cover 3 and is discharged outside the outer tub in an undetermined direction to avoid potential safety risks caused by splashing on electronic parts. It is possible. Also, the capacity of the washing machine is increased.

The water stream sprayed by the washing machine is more reliable and stable, so the spray cleaning effect is better. In addition, since the washing machine's clothes washing ratio will be further improved, it will be more suitable for customer needs and has a bright future in the market.

This embodiment differs from the third embodiment in the flood protection structure 301 . The overflow protection structure 301 described in this embodiment is a drainage path installed on the upper surface of the outer tank lid 3 . The drainage path is a guiding structure for guiding the overflowing water to the outside of the outer tank in a fixed direction, and preferably, the guiding structure is a guide groove or a conduit.

According to the overflow protection structure 301, when an abnormality occurs in the operation of the washing machine, the water overflowing from the outer tub can be discharged in a well-defined direction. Therefore, it is avoided that the water overflows in all directions up to the installation position of the electronic component without a fixed direction, which poses a potential safety risk.

The outer tank lid 3 includes an upper lid body and a lower lid body, and the upper lid body and the lower lid body are connected to form a water chamber. The outer tank lid 3 has a water supply port. In addition, an overflow protection structure 301 is provided on the upper portion of the outer tank lid 3 . The overflow protection structure 301 guides the water overflowing when the water chamber is full to the outside of the outer tank in a fixed direction.

The overflow protection structure 301 is a drainage path installed on the upper surface of the outer tub lid 3 . The drainage path is a guiding structure for guiding the overflowing water to the outside of the outer tank in a fixed direction, and preferably, the guiding structure is a guide groove or a conduit.

A plurality of spouts are provided on the inner peripheral wall of the water chamber. Further, a water equalizing rib whose length extends along the circumferential direction of the outer tank lid 3 is provided at a communicating portion between the water chamber and the water supply port. The water that has entered is intercepted by the water equalizing ribs, diverges toward the water chambers on both sides of the water inlet, and is evenly sprayed from each water outlet into the inner tank.

The water equalizing ribs are provided on the inner surface of the upper lid or the lower lid. In addition, the water equalizing rib separates the water supply port from the water discharge port on the inner peripheral wall of the water chamber facing the water supply port.

The water equalizing ribs include an intermediate rib, and left and right ribs provided on both left and right sides of the intermediate rib. The central axis of the intermediate rib overlaps with the central axis of the water inlet. The length of the intermediate rib is equal to or greater than the width of the water supply at the portion where the water supply port communicates with the water chamber. The lower end surface of the intermediate rib and the inner surface of the lower lid, or the upper end surface and the inner surface of the upper lid are in sealing contact.

The inner peripheral wall of the water chamber is provided with a plurality of water discharge holes, and the outer tank lid 3 is provided with a water supply port. Water enters the water chamber from the water supply port and is sprayed into the inner tank via the water discharge hole.

Each water discharge hole is independent and uniformly arranged on the inner peripheral wall of the water chamber. Alternatively, the water discharge holes may be a plurality of water discharge hole groups uniformly arranged on the inner peripheral wall of the water chamber, and each water discharge hole group includes at least two water discharge holes.

The intervals between the water discharge holes in each water discharge hole group may or may not be the same.

The intervals between the water discharge hole groups may or may not be the same.

The foregoing are merely preferred embodiments of the invention and are not intended to limit the invention in any form. Although the present invention has been disclosed above through preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, slight variations or supplements made by those skilled in the art using the technical content presented above are regarded as equally modified equivalent embodiments, and any of them is considered as an equivalent embodiment of the present invention. It does not deviate from the contents of the plan. In addition, simple modifications, equivalent variations and supplements added to the above embodiments based on the technical essence of the present invention are all within the scope of the present invention.

REFERENCE SIGNS LIST 1 washing machine outer tub 2 damming rib 3 outer tub lid 301 overflow protection structure 4 overflow port

Claims (6)

A washing machine having an outer tub (1) and an outer tub lid (3) disposed on the outer tub (1) and including an upper lid body and a lower lid body forming a water chamber,
The outer tank lid (3) has a water supply port and a water discharge port, and the water stored in the outer tank (1) is raised and sprayed into the inner tank to wash clothes,
An overflow port (4) is provided in the upper part of the outer tank (1) ,
A damming rib (2) is installed on the inner wall of the outer tub (1) of the washing machine, and an overflow gap is provided between the overflow port (4) and the damming rib (2). cage,
The lower edge of the damming rib (2) is located below the overflow port (4), is integrally formed with the inner wall of the outer tub (1) of the washing machine, and is formed integrally with the damming rib (2). ) is separated from the inner wall of the outer tank (1),
The upper edge of the damming rib (2) is positioned above the upper edge of the overflow port (4), and the length of the damming rib (2) is measured in the circumferential direction of the outer tub (1) of the washing machine. is equal to or greater than the length of said overflow port (4), and said damming rib (2) extends from the lower edge of said damming rib (2) to the upper edge of said damming rib (2). is configured to
The damming rib (2) includes two side walls connected to the inner wall of the outer tub (1) of the washing machine and a concave wall connected between the two side walls, the side walls and A washing machine, wherein the inner wall and the concave wall of the outer tub (1) of the washing machine are connected via an arc . The overflow port (4) is provided in a space projecting from the outer peripheral wall of the outer tub (1) of the washing machine, and the cross section of the space has a substantially triangular structure. 1. The washing machine according to 1. The washing machine according to claim 1, characterized in that the upper edge of said blocking rib (2) has a curvilinear structure in the horizontal direction. The overflow port (4) is a plurality of linear slits provided in the inner wall of the outer tub (1) of the washing machine and extending in the axial direction of the outer tub (1) of the washing machine. The washing machine according to any one of claims 1 to 3 , characterized in that: 5. The washing machine according to claim 4 , wherein the linear slits are positioned on a plurality of different horizontal planes , and the plurality of linear slits form a wavy shape in the vertical plane . An overflow protection structure (301) is provided on the upper part of the outer tub cover (3), and the overflow protection structure (301) directs the water overflowing when the water chamber is full in a fixed direction to the washing machine. lead to the outside of the outer tank (1) of the machine,
The overflow protection structure (301) is a drainage path installed on the upper surface of the outer tank lid (3), and the drainage path is filled with overflowing water to the outside of the outer tank in a fixed direction. 2. The washing machine according to claim 1 , wherein the washing machine has a guiding structure for guiding the water.

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