A drum washing machine

Abstract

The present application discloses a drum washing machine, which comprises an inner drum for containing washing water independently during washing; a water collecting device with a containing chamber which is open to the side of the inner drum, the inner drum being arranged in the containing chamber; and a water receiving groove is arranged on the bottom wall of the containing chamber, and the water flow discharged from the inner drum is arranged into the water receiving groove. The water collecting device is arranged, and the water receiving groove is further arranged in the water collecting device, so that the water flow discharged from the inner drum can be gathered in the water receiving groove, the splashing of the water flow against the wall of the inner drum is further reduced, and the discharge efficiency of the water flow is improved under the gathering effect of the water receiving groove.

Description

Technical Field

[0001] This invention belongs to the field of household appliances, and more specifically, relates to a drum washing machine. Background Technology

[0002] In existing technology, drum washing machines generally include a sealed outer drum that holds water and an inner drum that communicates with the outer drum. The washing capacity is based on the inner drum. This design not only limits the volume of the inner drum but also makes it easy for dirt to accumulate between the inner and outer drums, making it difficult to clean. To address these problems, engineers have creatively proposed designing the inner drum as a sealed container.

[0003] Chinese Patent Application No. 2017103201913 discloses a drum washing machine, including a body, a door, and an inner drum. The inner drum is rotatably mounted inside the body and holds water during the washing process. It also includes a support base, which is installed inside the body via a shock-absorbing device. The support base has an open receiving cavity, and the bottom of the inner drum is located within this cavity. A central rotating shaft is rotatably supported on the bottom wall of the support base. This invention achieves the water-holding function of the inner drum without affecting its rotation for washing and spin-drying functions. Furthermore, by replacing the original, larger outer drum with a support base, the capacity of the inner drum is increased.

[0004] However, in the aforementioned patent, the drainage process easily causes the drainage to splash onto the inner cylinder's side wall and bottom wall, resulting in contamination of the inner cylinder's surface. In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a drum washing machine.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A drum washing machine, including

[0008] The inner drum contains washing water independently during washing.

[0009] A water collection device having a receiving chamber open towards the inner cylinder, the inner cylinder being disposed within the receiving chamber;

[0010] The bottom wall of the accommodating chamber is provided with a water-receiving groove, and the water discharged from the inner cylinder flows into the water-receiving groove.

[0011] Furthermore, the water collection device includes a bottom wall and a side wall. The bottom wall is coaxially arranged with the inner cylinder, and the side wall is arranged along the edge of the bottom wall, extending towards the inner cylinder and circumferentially arranged outside the inner cylinder.

[0012] The water-receiving groove is recessed in the direction away from the inner cylinder and is arranged in a ring on the bottom wall.

[0013] Furthermore, the water-receiving groove includes a first sidewall, a second sidewall, and a bottom wall of the groove;

[0014] The bottom wall of the groove is arranged parallel to the bottom wall of the inner cylinder. The first side wall is formed by folding the edge of the bottom wall away from the inner cylinder 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 collection device, respectively.

[0015] Preferably, the water-receiving groove is integrally formed with the bottom wall.

[0016] Furthermore, the water-receiving groove includes a first sidewall, a second sidewall, and a bottom wall of the groove;

[0017] The first sidewall is connected to the bottom wall edge of the water collection device and extends away from the inner cylinder;

[0018] The second sidewall is connected to the sidewall of the water collection device and extends toward the inner cylinder;

[0019] The bottom wall of the groove is connected to the first side wall and the second side wall respectively;

[0020] The water receiving groove is integrally formed and is fixedly connected to the bottom wall and side wall of the water collection device.

[0021] Preferably, the water receiving groove is connected to the water collection device by welding, screwing, riveting, or plugging.

[0022] Furthermore, the water-receiving groove is a circumferential groove formed on the bottom wall of the water collection device.

[0023] Furthermore, a water collection device drain outlet is provided on the side wall of the water collection device located at the lower part of the inner cylinder;

[0024] The sidewall between the outer edge of the drain outlet of the water collection device and the water receiving groove, as well as the sidewall between the outer edge of the drain outlet of the water collection device and the outer edge of the sidewall of the water collection device, are all inclined, with the drain outlet of the water collection device located at the lowest position of the inclined sidewall.

[0025] Furthermore, it includes a water-retaining ring, which is annularly disposed on the outer edge of the side wall of the water collection device;

[0026] The sidewall between the outer edge of the drain outlet of the water collection device and the water receiving groove, as well as the sidewall between the outer edge of the drain outlet of the water collection device and the water-blocking ring, are all inclined, with the drain outlet of the water collection device located at the lowest position of the inclined sidewall.

[0027] Furthermore, it includes a water outlet guiding structure that communicates with the inner cylinder to guide the water flow out of the inner cylinder;

[0028] The drain end of the water outlet guiding structure extends into the water receiving groove.

[0029] Furthermore, the inner cylinder includes an inner cylinder bottom wall and an inner cylinder side wall;

[0030] A water outlet is provided on the side wall of the inner cylinder, and a water outlet device is provided on the water outlet. The water outlet guiding structure is provided on the outer wall of the side wall of the inner cylinder, with one end fixed at the water outlet and the other end extending toward the bottom wall of the inner cylinder. The drain end of the water outlet guiding structure extends into the water receiving groove.

[0031] Furthermore, the inner cylinder includes an inner cylinder bottom wall and an inner cylinder side wall;

[0032] The water outlet guiding structure is installed on the inner wall of the inner cylinder sidewall. The water outlet guiding structure is a guiding channel that extends toward the bottom wall of the inner cylinder and connects to the outside of the inner cylinder. The water outlet guiding structure has an outlet that connects the inner cylinder and the guiding channel. The water outlet is equipped with a water outlet device.

[0033] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0034] 1) This invention eliminates the outer drum structure, thereby expanding the capacity of the inner drum. At the same time, by setting a water outlet guiding structure on the inner drum wall, the water flow from the inner drum is directly guided to the rear part of the bottom wall of the inner drum, reducing the splashing of the water flow on the inner drum wall, reducing the pollution of the drum wall, ensuring the cleanliness of the drum wall, improving the washing effect, and reducing the cleaning difficulty when the water outlet guiding structure is detachable.

[0035] 2) By setting up a water collection device and further setting up a water receiving groove in the water collection device, the water flow discharged from the inner cylinder can be collected in the water receiving groove, which further reduces the splashing of the discharged water flow on the inner cylinder wall. At the same time, the discharge efficiency of the discharged water flow is improved under the collection effect of the water receiving groove.

[0036] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0037] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0038] Figure 1 This is a schematic diagram of the washing machine of the present invention;

[0039] Figure 2 This is the present invention. Figure 1 Schematic diagram of the AA section structure;

[0040] Figure 3 This is the present invention. Figure 2 Enlarged structural diagram at point B;

[0041] Figure 4 This is the present invention. Figure 2 An enlarged structural diagram of another embodiment at point B;

[0042] Figure 5 This is the present invention. Figure 2 An enlarged structural diagram of another embodiment at point B;

[0043] Figure 6 This is the present invention. Figure 2 An enlarged structural diagram of another embodiment at point B;

[0044] Figure 7 This is the present invention. Figure 2 An enlarged structural diagram of another embodiment at point B;

[0045] Figure 8 This is the present invention. Figure 1 Schematic diagram of the internal structure of the central lifting rib;

[0046] Figure 9 This is the present invention. Figure 2 Enlarged view of the structure at the water inlet groove.

[0047] In the diagram: 100, casing; 120, door; 300, controller; 400, detergent dispenser; 410, inner drum; 411, inner drum door; 412, lifting rib; 413, sealing valve; 414, water outlet guide structure; 415, water outlet; 416, inner drum side wall; 417, inner drum bottom wall; 420, water collection device; 421, water receiving groove; 4211, first side wall; 4212, second side wall; 4213, groove bottom wall; 422, side wall; 423, water baffle ring; 424, water collection device drain outlet; 425, bottom wall; 430, sealing structure; 440, water inlet structure; 500, motor; 600, water inlet pipe; 700, water inlet valve; 800, drainage device; 810, drain pipe.

[0048] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0050] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] like Figure 1 and Figure 2 As shown, the drum washing machine of the present invention includes a casing 100, a door 120, a controller 300, an inner drum 410, a water collection device 420, and a drainage device 800. Compared with traditional washing machines, the drum washing machine of the present invention eliminates the outer drum and uses a water collection device to collect the water discharged from the inner drum and lead it to the drainage device, which is beneficial to expanding the capacity of the inner drum 410 and improving the utilization rate of the inner drum of the washing machine.

[0053] The inner drum 410 in this invention is a sealed container that independently holds washing water during washing. It includes a bottom wall 417, a side wall 416, and a door 411. The door 411 is closable and can be easily opened and closed for users to add / remove clothes. A water outlet device is provided inside the inner drum 410, including a lifting rib 412 and a sealing valve 413 (e.g., ...). Figure 8 (As shown). The lifting rib 412 is provided with a water passage hole, and the sealing valve 413 is set on the water outlet 415. When the inner cylinder 410 is dehydrated, the sealing valve 413 opens under the action of centrifugal force, and the water outlet 415 is connected to the inner cylinder 410. The water discharged in the inner cylinder flows out through the water outlet 413.

[0054] To facilitate the guidance of the discharged water flow from the inner cylinder 410 to the water collection device 420, a water outlet guiding structure 414 is also included. The water outlet guiding structure 414 is connected to the inner cylinder 410 and guides the discharged water flow from the inner cylinder 410 directly to the water collection device 420, reducing the splashing of the discharged water flow onto the inner cylinder wall and reducing pollution to the inner cylinder wall.

[0055] The water outlet guiding structure 414 is provided on the inner cylinder side wall 416 and has a guiding part extending in the axial direction of the inner cylinder.

[0056] Example 1

[0057] In this embodiment, the water outlet guiding structure 414 is set on the outer wall of the inner cylinder side wall 416, which has little impact on the original structure of the inner cylinder 410. The water outlet guiding structure 414 can be directly installed on the inner cylinder side wall 416 as an external component, which is simple to operate and reduces assembly costs.

[0058] like Figure 3 and Figure 4 As shown, a water outlet 415 is provided on the inner cylinder side wall 416. The water outlet device (such as...) provided on the water outlet 415 is removed from the figure. Figure 8 The water outlet guiding structure 414 is disposed on the outer wall of the inner cylinder side wall 416, and the guiding part is fixed at the water outlet 415, so that the water discharged from the inner cylinder 410 through the water outlet 415 can directly enter the water outlet guiding structure 414. The other end of the guiding part extends toward the bottom wall 417 of the inner cylinder, extending to the rear part of the bottom wall 417 of the inner cylinder.

[0059] As one solution in this embodiment, such as Figure 3 As shown, the guide portion is a guide channel, one end of which is connected to the outlet 415, and the other end extends toward the bottom wall 417 of the inner cylinder. Preferably, the water outlet guide structure 414 includes a shell, and the guide channel penetrates through the interior of the shell. The water outlet guide structure 414 has a shell, and the guide channel is provided inside the shell. This design allows the water outlet guide structure 414 to be connected to the inner cylinder side wall 416 as an independent structure, directly avoiding direct contact between the discharged water from the inner cylinder 410 and the outer wall of the outer cylinder side wall 416, thus preventing contamination of the inner cylinder side wall 416.

[0060] Meanwhile, preferably, the water outlet guiding structure 414 is detachably installed on the outer wall of the inner drum side wall 416. When the washing machine runs for a long time, causing dirt to accumulate or even block the water outlet guiding structure 414, it can be easily removed for cleaning, repair or replacement.

[0061] More preferably, the water outlet guiding structure 414 is a water outlet guiding pipe, which is made of readily available materials, is simple to manufacture, and is easy to install.

[0062] To facilitate the installation of the water outlet guide structure 414, a fixing bracket or other structure that facilitates the fixing of the water outlet guide structure 414 can be provided on the outer wall of the inner cylinder 410 at the location where the water outlet guide structure is set, so as to prevent the water outlet guide structure from shaking or even falling off under the action of centrifugal force when the inner cylinder 410 is dehydrated.

[0063] As another solution in this embodiment, such as Figure 4 As shown, the guide portion is a guide wall, with one end facing the outlet 415 and the other end extending towards the bottom wall 417 of the inner cylinder. The water flowing out of the inner cylinder 410 through the outlet 415 is guided towards the bottom wall 417 by the guide wall, preventing splashing and contamination of the inner cylinder 410's surface. To optimize the guiding wall's blocking effect, its width is greater than the size of the outlet 415.

[0064] Preferably, the guide wall is integrally formed with the inner cylinder side wall 416, or the guide wall is provided with a connecting structure and is fixedly connected to the inner cylinder side wall 416 by fasteners to prevent the water outlet guide structure 414 from shaking or even falling off under the action of centrifugal force when the inner cylinder 410 is dehydrated.

[0065] Alternatively, to better block the discharged water flow, the water outlet guiding structure 414 further includes connecting sidewalls on both sides of the guiding wall. The connecting sidewalls and the guiding wall form a groove structure, and the connecting sidewalls are connected to the inner cylinder sidewall 416. In this design, the width of the guiding wall only needs to cover the water outlet 415. After the connecting sidewalls are connected to the inner cylinder sidewall 416, the guiding wall becomes groove-shaped, and a flow channel for the discharged water is formed between the guiding wall and the inner cylinder sidewall. The discharged water from the inner cylinder 410 flows along the flow channel, further reducing the splashing of the discharged water on the inner cylinder wall and reducing pollution.

[0066] A water collecting device 420 is coaxially sleeved at the rear of the inner cylinder 410. The water collecting device 420 has a receiving chamber open towards the inner cylinder, and a water-retaining ring 423 is provided on the edge of the open portion of the receiving chamber. The drain end of the water outlet guiding structure 414 extends into the receiving chamber. The water-retaining ring 423 prevents water entering the water collecting device 420 from moving towards the front end of the inner cylinder 410 and contaminating the front end of the inner cylinder 410.

[0067] Preferably, the connection between the water outlet guiding structure 414 and the inner cylinder side wall 416 is located inside the water baffle ring 423.

[0068] like Figure 2As shown, a water collection device 420 located at the lower part of the inner cylinder 410 has a water collection device drain outlet 424 on its side wall 422. The side wall between the outer edge of the water collection device drain outlet 424 and the bottom wall of the water collection device, as well as the side wall between the outer edge of the water collection device drain outlet 424 and the water baffle ring 423, are both inclined. The water collection device drain outlet 424 is located at the lowest position of the inclined side wall. Figure 2 As shown, the drain outlet 424 of the water collection device is connected to the drain device 800. The drainage entering the water collection device 420 can quickly flow into the drain device 800 under the action of the inclined side wall, and is discharged to the outside of the washing machine through the drain pipe 810, so as to avoid the drainage from stagnating in the water collection device 420 and forming dirt that is difficult to clean.

[0069] To further optimize the water collection performance of the water collection device 420 and reduce the contamination of the inner cylinder wall by drainage, a water-receiving groove 421 is provided on the bottom wall of the receiving chamber. The water-receiving groove 421 is recessed away from the inner cylinder 410 and is arranged in a ring shape. The drainage end of the water outlet guiding structure 414 extends into the water-receiving groove 421. After the drainage enters the water-receiving groove 421, it quickly gathers towards the lower part of the water collection device 420 under the obstruction of the groove wall, thus improving the water collection efficiency.

[0070] Preferably, the sidewall between the outer edge of the drain outlet 424 of the water collection device and the water receiving groove 421, as well as the sidewall between the outer edge of the drain outlet 424 of the water collection device and the water baffle ring 423, are both inclined, and the drain outlet 424 of the water collection device is located at the lowest position of the inclined sidewall.

[0071] Example 2

[0072] In this embodiment, the water outlet guiding structure 414 is disposed on the inner wall of the inner cylinder side wall 416.

[0073] As one solution in this embodiment, such as Figure 5 As shown, the guide portion is a guide wall, one end of which is fixedly connected to the bottom wall 417 of the inner cylinder or integrally formed, and the other end extends into the inner cylinder away from the bottom wall 417 and connects to the inner wall of the side wall 416 of the inner cylinder. The end of the side wall 416 extending into the bottom wall 417 of the inner cylinder is suspended and extends to the rear of the bottom wall 417 of the inner cylinder.

[0074] Preferably, the guide wall is circumferentially arranged around the edge of the bottom wall 417 of the inner cylinder, and the water outlet device is disposed on the inner wall of the guide wall. An annular flow channel is formed between the guide wall and the side wall 416 of the inner cylinder, and the water outlet 415 is opened on the guide wall, connecting the inner cylinder and the annular flow channel. The guide wall is annularly arranged inside the side wall 416 of the inner cylinder, which can further increase the volume of the inner cylinder and improve the utilization rate of the inner cylinder 410. Moreover, the annular guide wall structure is simple, easy to manufacture, and easy to implement.

[0075] As another solution in this embodiment, such as Figure 6 and Figure 7 As shown, the guide section is a guide channel extending towards the bottom wall 417 of the inner cylinder and connecting to the outside of the inner cylinder. The water outlet guide structure 414 has an outlet 415 connecting the inner cylinder 410 and the guide channel. A water outlet device is provided on the outlet 415 (specific structure as shown). Figure 8 (not shown in the figure). Compared with the previous solution in this embodiment, the wall structure of the inner drum 410 in this solution has less change. The end of the inner drum side wall 416 extending towards the inner drum bottom wall 417 is the same as that of a conventional washing machine. The inner drum side wall 416 and the inner drum bottom wall 417 are integrally formed and are not suspended.

[0076] The water outlet guiding structure 414 is a cover installed on the inner wall of the inner cylinder side wall 416, and the cover has an independent guiding channel (such as...). Figure 6 As shown, the water outlet guiding structure 414 is connected to the inner cylinder side wall 416 as an independent component, which directly avoids the direct contact between the water discharged from the inner cylinder 410 and the inner wall of the outer cylinder side wall 416, thus preventing pollution of the inner cylinder side wall 416.

[0077] Meanwhile, preferably, the water outlet guiding structure 414 is detachably installed on the inner wall of the inner drum side wall 416. When the washing machine runs for a long time, causing dirt to accumulate or even block the water outlet guiding structure 414, it can be easily removed for cleaning, repair or replacement.

[0078] More preferably, the water outlet guiding structure 414 is a water outlet guiding pipe, which is made of readily available materials, is simple to manufacture, and is easy to install.

[0079] To facilitate the installation of the water outlet guide structure 414, a fixing bracket or other structure that facilitates the fixing of the water outlet guide structure 414 can be provided on the inner wall of the inner cylinder 410 at the location where the water outlet guide structure 414 is set, so as to prevent the water outlet guide structure from shaking or even falling off under the action of centrifugal force when the inner cylinder 410 is dehydrated.

[0080] In order to achieve communication between the guide channel and the outside of the inner cylinder, an opening (not shown in the figure) is made on the side wall 416 or the bottom wall 417 of the inner cylinder, and the cover extends to the opening, and the guide channel is connected to the opening.

[0081] Alternatively, to further prevent drainage from contaminating the outer wall of the inner cylinder, the cover extends through the opening, and the guide channel extends to the outside of the inner cylinder.

[0082] As another implementation of this solution, such as Figure 7As shown, the cover and the inner wall of the inner cylinder sidewall 416 are sealed together to form the guide channel. An opening is formed on the inner cylinder sidewall 416 or the inner cylinder bottom wall 417, and the cover extends to the opening, with the guide channel communicating with the opening; alternatively, the cover extends out of the opening, and the guide channel extends to the outside of the inner cylinder.

[0083] Preferably, the water outlet guiding structure 414 is trough-shaped, and the trough wall is sealed to the inner wall of the inner cylinder side wall 416 to form the guiding flow channel. An opening is provided on the inner cylinder side wall 416 or the inner cylinder bottom wall 417, and the trough extends to the opening and connects with the opening, allowing the drainage to be directly discharged to the outside of the inner cylinder. To further avoid contamination of the outer wall of the inner cylinder by the drainage, the trough can extend through the opening and extend to the outside of the inner cylinder.

[0084] A water collecting device 420 is coaxially sleeved at the rear of the inner cylinder 410. The water collecting device 420 has a receiving chamber open towards the inner cylinder, and a water-retaining ring 423 is provided on the edge of the open portion of the receiving chamber. The drain end of the water outlet guiding structure 414 extends into the receiving chamber. The water-retaining ring 423 prevents water entering the water collecting device 420 from moving towards the front end of the inner cylinder 410 and contaminating the front end of the inner cylinder 410.

[0085] Preferably, the drain end of the water outlet guiding structure 414 is located inside the water-blocking ring 423.

[0086] like Figure 2 As shown, a water collection device 420 located at the lower part of the inner cylinder 410 has a water collection device drain outlet 424 on its side wall 422. The side wall between the outer edge of the water collection device drain outlet 424 and the bottom wall of the water collection device, as well as the side wall between the outer edge of the water collection device drain outlet 424 and the water baffle ring 423, are both inclined. The water collection device drain outlet 424 is located at the lowest position of the inclined side wall. Figure 2 As shown, the drain outlet 424 of the water collection device is connected to the drain device 800. The drainage entering the water collection device 420 can quickly flow into the drain device 800 under the action of the inclined side wall, and is discharged to the outside of the washing machine through the drain pipe 810, so as to avoid the drainage from stagnating in the water collection device 420 and forming dirt that is difficult to clean.

[0087] To further optimize the water collection performance of the water collection device 420 and reduce the contamination of the inner cylinder wall by drainage, a water-receiving groove 421 is provided on the bottom wall of the receiving chamber. The water-receiving groove 421 is recessed away from the inner cylinder 410 and is arranged in a ring shape. The drainage end of the water outlet guiding structure 414 extends into the water-receiving groove 421. After the drainage enters the water-receiving groove 421, it quickly gathers towards the lower part of the water collection device 420 under the obstruction of the groove wall, thus improving the water collection efficiency.

[0088] Preferably, the sidewall between the outer edge of the drain outlet 424 of the water collection device and the water receiving groove 421, as well as the sidewall between the outer edge of the drain outlet 424 of the water collection device and the water baffle ring 423, are both inclined, and the drain outlet 424 of the water collection device is located at the lowest position of the inclined sidewall.

[0089] Example 3

[0090] This embodiment describes a water-receiving groove.

[0091] like Figures 1 to 2 A drum washing machine is shown, including an inner drum 410 that independently holds washing water during washing. A water collecting device 420 has a receiving chamber open towards the inner drum, and the inner drum 410 is disposed in the receiving chamber. A water receiving groove 421 is provided on the bottom wall 417 of the receiving chamber, and the water discharged from the inner drum 410 is discharged into the water receiving groove 421. This allows the water discharged from the inner drum 410 to be concentrated in the water receiving groove 421, reducing splashing of the discharged water on the wall of the inner drum 410. At the same time, the water discharge efficiency is improved by the concentration effect of the water receiving groove 421.

[0092] like Figure 2 As shown, the water collecting device 420 includes a bottom wall 425 and a side wall 422. The bottom wall 425 is coaxially arranged with the inner cylinder and is located at the rear of the inner cylinder 410. The side wall 422 is located along the edge of the bottom wall 425 and extends towards the inner cylinder 410, forming a ring around the outside of the inner cylinder 410. The extension length of the side wall 422 is specifically set according to the position of the water outlet 415. Preferably, the water outlet 415 is located within the circumferential range of the side wall 422. Especially when the water outlet 415 is arranged as in Embodiment 1, placing the water outlet 415 within the circumferential range of the side wall 422 can effectively block the discharged water flow in the inner cylinder 410, preventing the discharged water flow from splashing onto the wall surface of the inner cylinder 410.

[0093] Combination such as Figure 9 As shown, the water-receiving groove 421 is recessed in a direction away from the inner cylinder 410 and is arranged in a ring on the bottom wall 425.

[0094] like Figure 9 As shown, the water receiving groove 421 includes a first side wall 4211, a second side wall 4212, and a bottom wall 4213.

[0095] In one embodiment, the groove bottom wall 4213 is arranged parallel to the bottom wall 417 of the inner cylinder. The first side wall 4211 is formed by folding the edge of the bottom wall 425 away from the inner cylinder 410 and is connected to the groove bottom wall 4213. The second side wall 4212 is connected to the groove bottom wall 4213 and the side wall 422 of the water collection device, respectively. Preferably, the water receiving groove 421 is integrally formed with the bottom wall 425. When the discharged water in the inner cylinder 410 enters the water receiving groove 421, the first side wall 4211 and the second side wall 4212 block the upward flow of water, reducing the splashing pollution of the discharged water on the bottom wall 417 and side wall 416 of the inner cylinder.

[0096] In another embodiment, the first sidewall 4211 is connected to the edge of the bottom wall 425 of the water collecting device and extends away from the inner cylinder 410. The second sidewall 4212 is connected to the sidewall 422 of the water collecting device and extends towards the inner cylinder 410. The bottom wall 4213 of the groove is connected to the first sidewall 4211 and the second sidewall 4212 respectively. In this embodiment, the water receiving groove 421 is integrally formed and is fixedly connected to the bottom wall 425 and sidewall 422 of the water collecting device as an independent component. As an independent component fixed to the water collecting device 420, it is easy to process. Especially when the water receiving groove 421 is detachably fixedly connected to the water collecting device 420, it is beneficial for subsequent cleaning and maintenance of the water receiving groove 421.

[0097] The water receiving groove 421 and the water collecting device 420 can be connected by welding, screws, riveting or plugging.

[0098] As another embodiment, the water-receiving groove 421 is a circumferential groove (not shown) formed on the bottom wall 425 of the water collection device. This directly utilizes the existing structure of the water collection device 420, creating a groove directly on the bottom wall 425, resulting in a simple structure and convenient processing.

[0099] like Figure 9As shown, the water collecting device 420 also includes a water collecting device drain outlet 424 located on the side wall 422 of the water collecting device at the lower part of the inner cylinder 410. The side wall between the outer edge of the water collecting device drain outlet 424 and the water receiving groove 421, as well as the side wall between the outer edge of the water collecting device drain outlet 424 and the outer edge of the side wall 422 of the water collecting device, are both inclined. The water collecting device drain outlet 424 is located at the lowest position of the inclined side wall. This arrangement allows the water discharged from the inner cylinder into the water receiving groove 421 to quickly enter the water collecting device drain outlet 424 along the inclined side wall 422 under the action of gravity, avoiding the water discharge from stagnating and accumulating in the side wall 422, forming clumps, polluting the drainage environment, or even blocking the drain outlet.

[0100] like Figure 9 As shown, the further water collection device 420 also includes a water-retaining ring 423, which is annularly disposed on the outer edge of the side wall 422 of the water collection device. The side wall between the outer edge of the drain outlet 424 and the water receiving groove 421, as well as the side wall between the outer edge of the drain outlet 424 and the water-retaining ring 423, are both inclined, with the drain outlet 424 located at the lowest point of the inclined side wall. The water-retaining ring 423 prevents the water discharged from the inner drum 410 from flowing along the side wall 422 to the outside of the water collection device 420, thus avoiding contamination of the washing machine's internal environment.

[0101] like Figure 9 To facilitate the flow of water discharged from the inner drum 410 to the water receiving groove 421, the washing machine in this embodiment includes a water discharge guiding structure 414. The water discharge guiding structure 414 is connected to the inner drum 410 and guides the water discharged from the inner drum. The drain end of the water discharge guiding structure 414 extends into the water receiving groove 421.

[0102] The specific arrangement of the water outlet guiding structure 414 has been described in detail in Embodiment 1 and Embodiment 2, and will not be repeated here.

[0103] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A drum washing machine, comprising The inner drum, which holds the washing water independently during washing, includes the bottom wall and side walls of the inner drum; A water collection device having a receiving chamber open towards the inner cylinder, the inner cylinder being disposed within the receiving chamber; Its features are: The bottom wall of the accommodating chamber is provided with a water-receiving groove, and the water discharged from the inner cylinder is discharged into the water-receiving groove. It also includes a water outlet guiding structure, which is set on the inner wall of the inner cylinder sidewall. The water outlet guiding structure is a guiding channel that extends toward the bottom wall of the inner cylinder and connects to the outside of the inner cylinder. The water outlet guiding structure has a water outlet that connects the inner cylinder and the guiding channel. The water outlet is equipped with a water outlet device. The water outlet guiding structure is a cover installed on the inner wall of the inner cylinder sidewall. The cover has an independent guiding channel. An opening is opened on the inner cylinder sidewall or the inner cylinder bottom wall. The water outlet guiding structure extends through the opening. The drain end of the water outlet guiding structure extends into the water receiving groove outside the inner cylinder. The water outlet device includes a lifting rib and a sealing valve. The sealing valve is located in the cavity of the lifting rib, which has a water passage hole. The sealing valve is openable and closable at the water outlet. When the inner cylinder is dehydrated, the sealing valve opens under the action of centrifugal force, and the water outlet is connected to the inner cylinder. The water discharged from the inner cylinder flows out through the water outlet.

2. A drum washing machine according to claim 1, characterized in that: The water collection device includes a bottom wall and a side wall. The bottom wall is coaxially arranged with the inner cylinder, and the side wall is arranged along the edge of the bottom wall, extending towards the inner cylinder and circumferentially arranged outside the inner cylinder. The water-receiving groove is recessed in the direction away from the inner cylinder and is arranged in a ring on the bottom wall.

3. A drum washing machine according to claim 2, characterized in that: The water-receiving groove includes a first sidewall, a second sidewall, and a bottom wall of the groove; The bottom wall of the groove is parallel to the bottom wall of the inner cylinder. The first side wall is formed by folding the edge of the bottom wall away from the inner cylinder 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 collection device, respectively.

4. A drum washing machine according to claim 3, characterized in that: The water-receiving groove is integrally formed with the bottom wall.

5. A drum washing machine according to claim 2, characterized in that: The water-receiving groove includes a first sidewall, a second sidewall, and a bottom wall of the groove; The first sidewall is connected to the bottom wall edge of the water collection device and extends away from the inner cylinder; The second sidewall is connected to the sidewall of the water collection device and extends toward the inner cylinder; The bottom wall of the groove is connected to the first side wall and the second side wall respectively; The water-receiving groove is integrally formed and is fixedly connected to the bottom wall and side wall of the water collection device.

6. A drum washing machine according to claim 5, characterized in that: The water receiving groove is connected to the water collection device by welding, screwing, riveting, or plugging.

7. A drum washing machine according to claim 2, characterized in that: The water receiving groove is a circumferential groove formed on the bottom wall of the water collection device.

8. A drum washing machine according to any one of claims 1-7, characterized in that: The water collection device includes a drain outlet on the side wall of the water collection device located at the lower part of the inner cylinder; The sidewall between the outer edge of the drain outlet of the water collection device and the water receiving groove, as well as the sidewall between the outer edge of the drain outlet of the water collection device and the outer edge of the sidewall of the water collection device, are all inclined, with the drain outlet of the water collection device located at the lowest position of the inclined sidewall.

9. A drum washing machine according to claim 8, characterized in that: Includes a water-retaining ring, which is annularly disposed on the outer edge of the side wall of the water collection device; The sidewall between the outer edge of the drain outlet of the water collection device and the water receiving groove, as well as the sidewall between the outer edge of the drain outlet of the water collection device and the water baffle ring, are all inclined, with the drain outlet of the water collection device located at the lowest position of the inclined sidewall.

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