JP2023512925A - drum washing machine - Google Patents

Abstract

The drum washing machine includes an inner tub (410) that independently stores washing water during washing, and a water collecting device (420) having a storage chamber that opens toward the inner tub (410). An inner tank (410) is installed in the storage chamber. A water receiving groove (421) is installed on the bottom wall of the containment chamber. The drained water flow from the inner tank (410) is discharged into the water receiving groove (421). By installing a water collecting device (420) and further installing a water receiving groove (421) in the water collecting device (420), the discharged water flow from the inner tank (410) flows into the water receiving groove (421). Since the water can be concentrated inside, the splashing of the discharged water flow on the wall surface of the inner tank (410) is further reduced. In addition, the convergence effect of the water receiving groove (421) improves the discharge efficiency of the discharged water flow.
[Selection drawing] Fig. 9

Description

FIELD OF THE INVENTION The present invention belongs to the field of domestic appliances, and in particular to drum washing machines.

In the prior art, a typical drum washing machine includes an outer tub that is sealed and contains water, and an inner washing tub that communicates with the outer tub. The washing capacity is based on the inner tub, but this design not only limits the volume of the inner tub, but also tends to collect dirt between the inner and outer tubs, making it difficult to clean. In response to the above problems, engineers have creatively proposed the concept of designing the inner tank as a sealed container.

Patent Document 1 discloses a drum washing machine including a main body, a door and an inner tub. The inner tub is rotatably installed in the main body. The inner tank contains water during the cleaning process. It also includes a support base. The support base is mounted inside the body via a vibration damping device. The supporting base has an open receiving space, and the bottom of the inner tub is installed in the receiving space of the supporting base. The central rotating shaft is rotatably supported on the bottom wall of the support base. In the present invention, the inner tub does not interfere with the washing and dehydrating functions due to the rotation of the inner tub, while realizing the water storage function of the inner tub. In addition, the capacity of the inner tank is increased by using the support base instead of the conventional outer tank which occupies a large volume.

However, in Patent Document 1, the waste water tends to scatter on the side walls and bottom walls of the inner tank during the drainage process, contaminating the walls of the inner tank. In view of the above, the present invention is proposed.

Chinese Patent Application No. 2017103201913

SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a drum washing machine in order to overcome the defects of the prior art.

In order to solve the above technical problems, the basic idea of the technical solution adopted in the present invention is as follows.

A drum washing machine includes an inner tub for independently storing washing water during washing, and a water collecting device having a storage chamber that opens toward the inner tub, and the inner tub is installed in the storage chamber. A water-receiving groove is provided in the bottom wall of the storage chamber, and the discharged water flow from the inner tank is discharged into the water-receiving groove.

Further, the water collecting device includes a bottom wall and side walls. The bottom wall is installed coaxially with the inner tank, and the side wall is installed on the edge of the bottom wall, extends in the direction of the inner tank, and is annularly installed outside the inner tank.

The water receiving groove is recessed in a direction away from the inner tank and is annularly installed in the bottom wall.

Further, the water receiving groove includes a first side wall, a second side wall and a groove bottom wall.

The bottom wall of the groove and the bottom wall of the inner tub are installed in parallel. The first side wall is formed by folding back the edge of the bottom wall in a direction away from the inner tank, and is connected to the bottom wall of the groove. The second side wall is connected to the bottom wall of the groove and the side wall of the water collecting device respectively.

Preferably, the water receiving groove and the bottom wall are integrally molded.

Further, the water receiving groove includes a first side wall, a second side wall and a groove bottom wall.

The first side wall is connected to the edge of the bottom wall of the water collecting device and extends away from the inner tub.

The second side wall is connected to the side wall of the water collecting device and extends toward the inner tub.

The groove bottom wall is connected to the first side wall and the second side wall, respectively.

The water receiving groove is integrally molded and fixedly connected to the bottom and side walls of the water collecting device.

Preferably, the water receiving groove and the water collecting device are welded, screwed, riveted or pluggable.

Further, the water-receiving groove is a circumferentially surrounding groove formed in the bottom wall of the water collecting device.

Further, it includes a water collecting device outlet opened in a side wall of the water collecting device located below the inner tub.

The side wall between the outer edge of the water collecting device outlet and the water receiving groove and the side wall between the outer edge of the water collecting device outlet and the outer edge of the side wall of the water collecting device are both inclined, The water catcher outlet is located at the lowest point of the sloping side wall.

Further, a water stop ring is provided in an annular shape on the outer edge of the side wall of the water collecting device.

The side wall between the outer edge of the water collecting device outlet and the water receiving groove and the side wall between the outer edge of the water collecting device outlet and the water stop ring are both inclined, and the water collecting device drains. The mouth is located at the lowest point of the sloping side wall.

Further, the water discharge guide structure communicates with the inner tank and guides the flow of discharged water from the inner tank.

A drain end of the water discharge guide structure extends into the water receiving groove.

Further, the inner tank includes an inner tank bottom wall and an inner tank side wall.

A water discharge port is formed in the inner tank side wall, and a water discharge device is installed in the water discharge port. The water discharge guide structure is installed on the outer wall of the inner tank side wall, and has one end fixed to the water discharge port and the other end extending toward the inner tank bottom wall. Moreover, the water discharge end of the water discharge guide structure extends into the water receiving groove.

Further, the inner tank includes an inner tank bottom wall and an inner tank side wall.

The water discharge guide structure is installed on the inner wall of the inner tank side wall. The water discharge guide structure is a guide channel that extends toward the bottom wall of the inner tank and communicates with the outside of the inner tank. The water discharge guide structure is provided with a water discharge port that communicates the inner tank and the guide channel, and a water discharge device is installed in the water discharge port.

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

1) In the present invention, the capacity of the inner tank is increased by omitting the structure of the outer tank. In addition, by installing a water discharge guide structure on the wall surface of the inner tank, the discharged water flow from the inner tank is directly guided to the rear part of the bottom wall of the inner tank. As a result, the scattering of the discharged water flow on the inner tank wall surface is reduced, and the contamination of the tank wall is reduced, so that the tank wall is kept clean and the cleaning effect is improved. Moreover, when the water discharge guide structure is detachably installed, the difficulty of cleaning is reduced.

2) In the present invention, by installing a water collecting device and further installing a water receiving groove in the water collecting device, the discharged water flow from the inner tank can be focused in the water receiving groove. Splashing of the discharged water stream against the walls of the tank is further reduced. In addition, the convergence effect of the water receiving groove improves the discharge efficiency of the discharged water flow.

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 may derive further drawings from these drawings, provided that no creative effort is required. It is possible.

FIG. 1 is a schematic diagram of the washing machine of the present invention. FIG. 2 is a schematic structural diagram of the AA cross section in FIG. 1 of the present invention. FIG. 3 is a schematic diagram of an enlarged structure of part B in FIG. 2 of the present invention. FIG. 4 is a schematic diagram of an enlarged structure of another embodiment of part B in FIG. 2 of the present invention. FIG. 5 is a schematic diagram of an enlarged structure of another embodiment of part B in FIG. 2 of the present invention. FIG. 6 is a schematic diagram of an enlarged structure of another embodiment of portion B in FIG. 2 of the present invention. FIG. 7 is a schematic diagram of an enlarged structure of another embodiment of portion B in FIG. 2 of the present invention. FIG. 8 is a schematic structural diagram of part of the inside of the lifting rib in FIG. 1 of the present invention. FIG. 9 is an enlarged view of the structure of the water receiving groove portion in FIG. 2 of the present invention.

It should be noted that these drawings and written description 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. It is.

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 the present invention and do not limit the scope of the present invention.

In the description of the present invention, terms such as "top", "bottom", "front", "back", "left", "right", "vertical", "inside", "outside", etc. should be explained. The direction or positional relationship indicated by is the direction or positional relationship based on the illustration, and is only for the convenience and simplification of the description of the present invention, and the target device or member is in a specific direction. It does not express or imply that it has and must be configured and operated in a particular direction. As such, it should not be construed as limiting the invention.

In the description of 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.

As shown in FIGS. 1 and 2, the drum washing machine of the present invention includes a housing 100, a body door 120, a controller 300, an inner tub 410, a water collecting device 420 and a drainage device 800. As shown in FIG. Compared to conventional washing machines, the drum washing machine in the present invention omits the outer tub and uses a water collection device to collect the drain water stream from the inner tub and guide it to the drain device. This is advantageous for increasing the capacity of the inner tub 410, improving the utilization rate of the inner tub of the washing machine.

The inner tank 410 in the present invention is a hermetically sealed container that independently accommodates washing water during washing. It also includes an inner tank bottom wall 417 , an inner tank side wall 416 and an inner tank door 411 . The inner tub door 411 is installed in the inner tub so as to be openable and closable so as to facilitate loading/unloading of clothes by the user. A water discharging device including a lifting rib 412 and a seal valve 413 (see FIG. 8) is installed in the inner tank 410 . The lifting ribs 412 are provided with water passage holes. Moreover, the seal valve 413 is installed in the spout 415 so that it can be opened and closed. When the inner tank 410 is dehydrated, the seal valve 413 is opened by the action of centrifugal force, so that the water discharge port 415 communicates with the inner tank 410 , and the water discharged from the inner tank flows out through the water discharge port 413 .

A water discharge guide structure 414 is further included to help guide the flow of water discharged from the inner tub 410 into the water collection device 420 . The water discharge guide structure 414 communicates with the inner tub 410 and directly discharges the water flow from the inner tub 410 to the water collecting device 420 . As a result, splashing of the discharged water flow onto the wall surface of the inner tank is reduced, and contamination of the wall surface of the inner tank is reduced.

The water discharge guide structure 414 is installed on the inner tank side wall 416 and has a guide part extending in the axial direction of the inner tank.

The water discharge guide structure 414 in this embodiment is installed on the outer wall of the inner tank side wall 416 and has little influence on the conventional structure of the inner tank 410 . Since the water discharge guide structure 414 can be directly attached to the inner tank side wall 416 as an external member, the operation is simple and the installation cost is reduced.

As shown in FIGS. 3 and 4, the inner tank side wall 416 is provided with a water outlet 415 . In the drawing, the water discharge device (see FIG. 8) installed at the water discharge port 415 is omitted. The water discharge guide structure 414 is installed on the outer wall of the inner tank side wall 416 . The guide part is fixed to the water discharge port 415 portion, and allows the discharged water flow from the inner tank 410 flowing out from the water discharge port 415 to directly enter the water discharge guide structure 414 . The other end of the guide portion extends toward the inner tank bottom wall 417 and extends to the rear of the inner tank bottom wall 417 .

In one version of this embodiment, the guide portion is a guide channel, as shown in FIG. One end of the guide channel communicates with the spout 415 , and the other end extends toward the inner tank bottom wall 417 . Preferably, the water discharge guide structure 414 includes a housing, and the guide channel penetrates the interior of the housing. The water discharge guide structure 414 has a housing, and a guide channel is installed inside the housing. In this method, since the water discharge guide structure 414 is connected to the inner tank side wall 416 as an independent structure, the discharged water flow from the inner tank 410 directly contacts the outer wall of the outer tank side wall 416, causing the inner tank side wall 416 to move. Contamination is directly avoided.

Also, preferably, the water discharge guide structure 414 is detachably installed on the outer wall of the inner tub sidewall 416 . As a result, when the washing machine is operated for a long period of time, dirt accumulates in the water discharge guide structure 414, and eventually the water discharge guide structure 414 is blocked, the water discharge guide structure 414 can be easily removed for cleaning, repair, replacement, or the like. operations can be performed.

More preferably, the water discharge guide structure 414 is a water discharge guide conduit that is easy to obtain materials, easy to manufacture, and easy to install.

In order to facilitate the installation of the water discharge guide structure 414, a fixed engagement base or a structure convenient for fixing the water discharge guide structure 414 may be installed on the outer wall of the inner tank 410 at the installation position of the water discharge guide structure. good. As a result, when the inner tub 410 is dehydrated, it is possible to prevent the water discharge guide structure from wobbling due to centrifugal force and eventually falling off.

As another solution of this embodiment, as shown in FIG. 4, the guide part is a guide wall. One end of the guide wall faces the spout 415 with a gap therebetween, and the other end extends toward the inner tank bottom wall 417 . The water discharged from the inner tank 410 flowing out from the water outlet 415 flows along the guide wall toward the bottom wall 417 of the inner tank due to the blocking action of the guide wall. This avoids a situation in which the discharged water flow scatters around and contaminates the wall surface of the inner tank 410 . The width of the guide wall is greater than the size of the spout 415 so that the blocking effect of the guide wall is optimal.

Preferably, the guide wall and inner tank side wall 416 are integrally molded. Alternatively, the guide wall is provided with a connecting structure that is fixedly connected to the inner tank side wall 416 by a tightening member. As a result, when the inner tub 410 is dehydrated, the water discharge guide structure 414 is prevented from wobbling due to centrifugal force and eventually falling off.

Alternatively, in order to better block the discharge water flow, the water discharge guiding structure 414 further includes connecting sidewalls on both sides of the guiding wall, and the connecting sidewalls and the guiding wall form a groove structure. The connecting sidewall is connected to the inner tank sidewall 416 . In this scheme, the width of the guide wall should be enough to cover the spout 415 . After the connection side wall is connected to the inner tank side wall 416, the guide wall forms a groove shape to form a channel for the discharge water flow between the guide wall and the inner tank side wall. Since the discharged water stream from the inner tank 410 flows along the flow path, the splashing of the discharged water stream on the wall surface of the inner tank is further reduced, thereby reducing contamination.

The water collecting device 420 is coaxially arranged at the rear of the inner tank 410 . The water collecting device 420 has a storage chamber that opens toward the inner tank. A water stop ring 423 is provided at the edge of the opening of the storage chamber. Also, the water discharge end of the water discharge guide structure 414 extends into the accommodation chamber. By installing the water stop ring 423, the water discharged into the water collecting device 420 is prevented from moving to the front end of the inner tub 410 and contaminating the front end of the inner tub 410. FIG.

Preferably, the connection point between the water discharge guide structure 414 and the inner tank side wall 416 is installed inside the water stop ring 423 .

As shown in FIG. 2, a side wall 422 of the water collecting device 420 positioned below the inner tub 410 is provided with a water collecting device drain port 424 . Both the side wall between the outer edge of the water collecting device outlet 424 and the bottom wall of the water collecting device and the side wall between the outer edge of the water collecting device outlet 424 and the water stop ring 423 are inclined. , the water collector outlet 424 is located at the lowest point of the sloping side wall. As shown in FIG. 2, the water collection device outlet 424 is connected to a drainage device 800 . Drainage that has entered the water collecting device 420 can quickly flow into the drainage device 800 due to the action of the slanted side wall, and is discharged to the outside of the washing machine through the drainage pipe 810 . This prevents waste water from accumulating in the water collecting device 420 and forming hard-to-clean dirt.

In order to further optimize the water collecting performance of the water collecting device 420 and reduce the contamination of the wall surface of the inner tank by waste water, a water receiving groove 421 is installed on the bottom wall of the receiving chamber. The water receiving recessed groove 421 is recessed in a direction away from the inner tank 410 and is provided in an annular shape. The water discharge end of the water discharge guide structure 414 extends into the water receiving groove 421 . After entering the water-receiving recessed groove 421, the drainage is rapidly converged to the lower part of the water-collecting device 420 by the blocking action of the groove wall, thereby improving the water-collecting efficiency.

Preferably, both the side wall between the outer edge of the water collecting device drain port 424 and the water receiving groove 421 and the side wall between the outer edge of the water collecting device drain port 424 and the water stop ring 423 are installed at an angle. and the water collector outlet 424 is located at the lowest point of the sloping side wall.

The water discharge guide structure 414 in this embodiment is installed on the inner wall of the inner tank side wall 416 .

As one proposal of this embodiment, as shown in FIG. 5, the guide portion is a guide wall, one end of which is fixedly connected to or integrally formed with the inner tank bottom wall 417, and the other end of which is an inner wall. It extends toward the inside of the inner tank away from the tank bottom wall 417 and is connected to the inner wall of the inner tank side wall 416 . One end of the inner tank side wall 416 extending toward the inner tank bottom wall 417 is installed in a floating state and extends to the rear of the inner tank bottom wall 417 .

Preferably, the guide wall is circumferentially installed in an annular shape around the edge of the inner tank bottom wall 417 . The water discharging device is installed on the inner wall of the guide wall, and an annular flow path is formed between the guide wall and the inner tank side wall 416 . A water discharge port 415 is opened in the guide wall, and communicates the inner tank with the annular flow path. By installing the guide wall annularly inside the inner tank side wall 416, the volume of the inner tank can be further increased, and the utilization rate of the inner tank 410 is improved. In addition, the circularly installed guide wall has a simple structure, is less difficult to process, and is easy to implement.

As another scheme of this embodiment, as shown in FIGS. 6 and 7, the guide part is a guide channel extending toward the inner tank bottom wall 417 and communicating with the outside of the inner tank. The water discharge guide structure 414 is provided with a water discharge port 415 that communicates the inner tank 410 and the guide flow path, and a water discharge device is installed in the water discharge port 415 (not shown, but specific). The structure is shown in FIG. 8). Compared with the above scheme of the present embodiment, the wall structure of the inner tub 410 in this scheme has little change, and one end of the inner tub side wall 416 extending toward the inner tub bottom wall 417 is the same as that of a general washing machine. be. The inner tank side wall 416 is molded integrally with the inner tank bottom wall 417 and is not installed in a floating state.

The water discharge guide structure 414 is a cover member attached to the inner wall of the inner tank side wall 416 . A separate guide channel is provided in the cover member (see FIG. 6). Since the water discharge guide structure 414 is connected to the inner tank side wall 416 as an independent member, the discharged water flow from the inner tank 410 directly contacts the inner wall of the outer tank side wall 416 to contaminate the inner tank side wall 416 . directly avoided.

Also, preferably, the water discharge guide structure 414 is detachably installed on the inner wall of the inner tank side wall 416 . As a result, when the washing machine is operated for a long period of time, dirt accumulates in the water discharge guide structure 414, and eventually the water discharge guide structure 414 is blocked, the water discharge guide structure 414 can be easily removed for cleaning, repair, replacement, or the like. operations can be performed.

More preferably, the water discharge guide structure 414 is a water discharge guide conduit that is easy to obtain materials, easy to manufacture, and easy to install.

In order to facilitate the installation of the water discharge guide structure 414, the inner wall of the inner tank 410 may be provided with a fixed engagement base or a structure convenient for fixing the water discharge guide structure 414 at the installation position of the water discharge guide structure 414. Just do it. As a result, when the inner tub 410 is dehydrated, it is possible to prevent the water discharge guide structure from wobbling due to centrifugal force and eventually falling off.

An opening (not shown) is formed in the inner tank side wall 416 or the inner tank bottom wall 417 in order to achieve communication between the guide channel and the outside of the inner tank. The cover member extends to the opening and the guide channel communicates with the opening.

Alternatively, the cover member extends through the opening and the guide channel extends to the outside of the inner tank to further avoid contamination of the outer wall of the inner tank with waste water.

As another embodiment of the present scheme, as shown in FIG. 7, the cover member is sealingly connected to the inner wall of the inner tank side wall 416 to form the guide channel. An opening is formed in the inner tank side wall 416 or the inner tank bottom wall 417 . The cover member extends to the opening and the guide channel communicates with the opening. Alternatively, the cover member extends to penetrate the opening, and the guide channel extends to the outside of the inner tank.

Preferably, the water discharge guide structure 414 is in the shape of a tub, and the tub wall is sealingly connected to the inner wall of the inner tub sidewall 416 to form the guide channel. An opening is formed in the inner tank side wall 416 or the inner tank bottom wall 417, and by extending the tank body to the opening and communicating with the opening, the waste water can be discharged directly to the outside of the inner tank. Further, in order to further avoid contamination of the outer wall of the inner tank with waste water, the tank body may extend through the opening and extend to the outside of the inner tank.

The water collecting device 420 is coaxially arranged at the rear of the inner tank 410 . The water collecting device 420 has a storage chamber that opens toward the inner tank. A water stop ring 423 is provided at the edge of the opening of the storage chamber. Also, the water discharge end of the water discharge guide structure 414 extends into the accommodation chamber. By installing the water stop ring 423, the water discharged into the water collecting device 420 is prevented from moving to the front end of the inner tub 410 and contaminating the front end of the inner tub 410. FIG.

Preferably, the discharge end of the water discharge guide structure 414 is installed inside the water stop ring 423 .

As shown in FIG. 2, a side wall 422 of the water collecting device 420 positioned below the inner tub 410 is provided with a water collecting device drain port 424 . Both the side wall between the outer edge of the water collecting device outlet 424 and the bottom wall of the water collecting device and the side wall between the outer edge of the water collecting device outlet 424 and the water stop ring 423 are inclined. , the water collector outlet 424 is located at the lowest point of the sloping side wall. As shown in FIG. 2, the water collection device outlet 424 is connected to a drainage device 800 . Drainage that has entered the water collecting device 420 can quickly flow into the drainage device 800 due to the action of the slanted side wall, and is discharged to the outside of the washing machine through the drainage pipe 810 . This prevents waste water from accumulating in the water collecting device 420 and forming hard-to-clean dirt.

In order to further optimize the water collecting performance of the water collecting device 420 and reduce the contamination of the wall surface of the inner tank by waste water, a water receiving groove 421 is installed on the bottom wall of the receiving chamber. The water receiving recessed groove 421 is recessed in a direction away from the inner tank 410 and is provided in an annular shape. The water discharge end of the water discharge guide structure 414 extends into the water receiving groove 421 . After entering the water-receiving recessed groove 421, the drainage is rapidly converged to the lower part of the water-collecting device 420 by the blocking action of the groove wall, thereby improving the water-collecting efficiency.

Preferably, both the side wall between the outer edge of the water collecting device drain port 424 and the water receiving groove 421 and the side wall between the outer edge of the water collecting device drain port 424 and the water stop ring 423 are installed at an angle. and the water collector outlet 424 is located at the lowest point of the sloping side wall.

In this embodiment, a water receiving groove will be described.

As shown in FIGS. 1 and 2, the drum washing machine includes an inner tub 410 for independently containing washing water during washing. The water collecting device 420 has a storage chamber that opens toward the inner tank. The inner tank 410 is installed in the storage chamber. A water receiving groove 421 is installed in the bottom wall 417 of the receiving chamber, and the water discharged from the inner tank 410 is discharged into the water receiving groove 421 . As a result, the discharged water flow from the inner tank 410 can be converged within the water receiving concave groove 421, so that the scattering of the discharged water flow on the wall surface of the inner tank 410 is reduced. In addition, the convergence effect of the water receiving groove 421 improves the discharge efficiency of the discharged water flow.

As shown in FIG. 2, the water collection device 420 includes a bottom wall 425 and side walls 422 . The bottom wall 425 is installed coaxially with the inner tub and installed at the rear of the inner tub 410 . The side wall 422 is installed at the edge of the bottom wall 425 , extends toward the inner tub 410 , and is annularly installed outside the inner tub 410 . The extension length of the side wall 422 is specifically set according to the position of the spout 415 . Preferably, spout 415 is located within the confines of side wall 422 . In particular, when the spout 415 is installed as in the first embodiment, the spout 415 is installed within the surrounding range of the side wall 422 . As a result, it is possible to effectively block the flow of water discharged from the inner tank 410 and prevent the flow of discharged water from scattering against the wall surface of the inner tank 410 .

In addition, as shown in FIG. 9 , the water receiving groove 421 is recessed in a direction away from the inner tub 410 and is annularly installed on the bottom wall 425 .

As shown in FIG. 9 , the water receiving groove 421 includes a first sidewall 4211 , a second sidewall 4212 and a groove bottom wall 4213 .

In one aspect of this embodiment, the bottom wall 4213 of the groove and the bottom wall 417 of the inner tub are installed in parallel. In addition, the first side wall 4211 is formed by folding the edge of the bottom wall 425 in a direction away from the inner tub 410 and is connected to the groove bottom wall 4213 . The second side wall 4212 is connected to the bottom wall 4213 of the groove and the side wall 422 of the water collecting device respectively. Preferably, the water receiving groove 421 and the bottom wall 425 are integrally molded. After the discharged water flow from the inner tank 410 enters the water receiving groove 421, the first side wall 4211 and the second side wall 4212 act to block the rise of the water flow. Water splash and contamination is reduced.

In another scheme of this embodiment, the first side wall 4211 is connected to the edge of the bottom wall 425 of the water collecting device and extends away from the inner tub 410 . Also, the second side wall 4212 is connected to the side wall 422 of the water collecting device and extends toward the inner tub 410 . The groove bottom wall 4213 is connected to the first side wall 4211 and the second side wall 4212 respectively. The above water receiving groove 421 in the present scheme is integrally molded and fixedly connected to the bottom wall 425 and the side wall 422 of the water collecting device as an independent member. Fixing it to the water collecting device 420 as an independent member facilitates processing. In particular, when the water receiving groove 421 is detachably fixedly connected to the water collecting device 420, it is advantageous for cleaning and repairing the water receiving groove 421 later.

The water receiving groove 421 and the water collecting device 420 can be welded connection, screw connection, riveted connection or plug connection.

In another aspect of the present embodiment, the water receiving groove 421 is a circumferentially surrounding groove (not shown) formed in the bottom wall 425 of the water collecting device. In this case, the conventional structure of the water collecting device 420 is used as it is, and the concave groove is directly formed in the bottom wall 425, so the structure is simple and easy to process.

As shown in FIG. 9 , the water collecting device 420 further includes a water collecting device outlet 424 formed in a side wall 422 of the water collecting device located below the inner tub 410 . Both the side wall between the outer edge of the water collecting device outlet 424 and the water receiving groove 421 and the side wall between the outer edge of the water collecting device outlet 424 and the outer edge of the water collecting device side wall 422 are inclined. with the water collector outlet 424 located at the lowest point of the sloping side wall. By installing in this way, the discharged water flow from the inner tank that has entered the water receiving groove 421 can rapidly enter the water collection device drain port 424 along the inclined side wall 422 due to the action of gravity. This avoids a situation in which the discharged water stream stays, accumulates and solidifies within the side wall 422, thereby contaminating the drainage environment and eventually clogging the drainage port.

As shown in FIG. 9, the water collecting device 420 further includes a water stop ring 423 annularly installed on the outer edge of the side wall 422 of said water collecting device. The side wall between the outer edge of the water collecting device outlet 424 and the water receiving groove 421 and the side wall between the outer edge of the water collecting device outlet 424 and the water stop ring 423 are both inclined, A water collector outlet 424 is located at the lowest point of the sloping side wall. By installing the water stop ring 423, the water discharged from the inner tub 410 is prevented from flowing along the side wall 422 to the outside of the water collection device 420 and contaminating the environment inside the washing machine.

As shown in FIG. 9, the washing machine of the present embodiment includes a water discharge guide structure 414 to facilitate guiding the water flow from the inner tub 410 to the water receiving groove 421 . A water discharge guide structure 414 communicates with the inner tub 410 and guides the flow of discharged water from the inner tub. The water discharge end of the water discharge guide structure 414 extends into the water receiving groove 421 .

Since the specific installation method of the water discharge guide structure 414 has been described in detail in the first and second embodiments, it will not be described again here.

The above descriptions are of preferred embodiments of the invention only, 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 scheme of the present invention, slight modifications or supplements that can be implemented by those skilled in the art using the technical content presented above are equally modified and equivalent embodiments, and all of them are equivalent to the present invention. It does not deviate from the content of the technical plan. In addition, any 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 scheme of the present invention.

100 housing 120 main body door 300 controller 400 detergent case 410 inner tank 411 inner tank door 412 lifting rib 413 seal valve 414 water discharge guide structure 415 water discharge port 416 inner tank side wall 417 inner tank bottom wall 420 water collecting device 421 water receiving groove 4211 second 1 side wall 4212 2nd side wall 4213 concave groove bottom wall 422 side wall 423 water stop ring 424 water collection device drain port 425 bottom wall 430 seal structure 440 water inlet structure 500 motor 600 water supply pipe 700 water supply valve 800 drainage device 810 drain pipe

Claims (10)

A drum washing machine comprising an inner tank for independently storing washing water during washing, and a water collecting device having a receiving chamber opened to the inner tank side, wherein the inner tank is installed in the receiving chamber,
A drum washing machine, wherein a water-receiving groove is installed in the bottom wall of the housing chamber, and water discharged from the inner tub is discharged into the water-receiving groove. The water collecting device comprises a bottom wall and a side wall, the bottom wall being coaxially installed with the inner tank, the side wall being installed at the edge of the bottom wall and extending in the direction of the inner tank, Circularly installed outside the inner tank,
2. The drum washing machine as set forth in claim 1, wherein the water receiving groove is recessed in a direction away from the inner tub and is annularly installed in the bottom wall. the water receiving groove includes a first side wall, a second side wall and a bottom wall of the groove;
The bottom wall of the groove and the bottom wall of the inner tank are installed in parallel, the first side wall is formed by folding back the edge of the bottom wall in a direction away from the inner tank, and the bottom wall of the groove is formed. connected to a wall, wherein the second side wall is connected to the bottom wall of the groove and the side wall of the water collecting device, respectively;
3. The drum washing machine as claimed in claim 2, wherein the water receiving groove and the bottom wall are integrally formed. the water receiving groove includes a first side wall, a second side wall and a bottom wall of the groove;
The first side wall is connected to the edge of the bottom wall of the water collecting device and extends in a direction away from the inner tank,
The second side wall is connected to the side wall of the water collecting device and extends in a direction close to the inner tank,
the groove bottom wall is connected to the first side wall and the second side wall, respectively;
the water receiving groove is integrally molded and fixedly connected to the bottom wall and the side wall of the water collecting device;
The drum washing machine as set forth in claim 2, wherein the water receiving groove and the water collecting device are preferably welded, screwed, riveted or insert-connected. 3. The drum washing machine as set forth in claim 2, wherein the water receiving groove is a circumferentially surrounding groove formed in the bottom wall of the water collecting device. including a water collection device outlet opened in a side wall of the water collection device located at the bottom of the inner tank;
Both the side wall between the outer edge of the water collecting device outlet and the water receiving groove and the side wall between the outer edge of the water collecting device outlet and the outer edge of the side wall of the water collecting device are inclined. 6. The drum washing machine according to any one of claims 1 to 5, wherein the water collecting device outlet is located at the lowest position of the inclined side wall. including a water stop ring annularly installed on the outer edge of the side wall of the water collecting device;
Both the side wall between the outer edge of the water collecting device outlet and the water receiving groove and the side wall between the outer edge of the water collecting device outlet and the water stop ring are installed at an angle, 7. The drum washing machine as claimed in claim 6, wherein the water device outlet is located at the lowest position of the inclined side wall. a water discharge guide structure is in communication with the inner tank and guides a flow of discharged water from the inner tank;
7. The drum washing machine as claimed in claim 6, wherein the water discharge end of the water discharge guide structure extends into the water receiving groove. The inner tank includes an inner tank bottom wall and an inner tank side wall,
A water discharge port is formed in the inner tank side wall, and a water discharge device is installed in the water discharge port. and the other end extends toward the bottom wall of the inner tank, and the drain end of the water discharge guide structure extends into the water receiving recessed groove. Described drum washing machine. The inner tank includes an inner tank bottom wall and an inner tank side wall,
The water discharge guide structure is installed on the inner wall of the inner tank side wall, the water discharge guide structure is a guide channel extending toward the inner tank bottom wall and communicating with the outside of the inner tank, and the water discharge guide structure 9. The drum washing machine according to claim 8, wherein a water discharge port is provided for communicating the inner tub and the guide channel, and a water discharge device is installed in the water discharge port.

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