Roller washing machine

Abstract

The invention discloses a drum washing machine. The drum washing machine comprises an outer drum and a window pad installed at a drum opening of the outer drum, a residual water discharging hole is formed in the bottommost portion of the window pad, a water inlet hole overlapped with the residual water discharging hole is formed in the drum wall of the outer drum, and a residual water guiding structure is arranged at the bottommost portion of the inner circumference of the water inlet hole and communicated with the residual water discharging hole and the interior of the outer drum. The water guide pipe is used for guiding residual water at the bottommost part of the window pad into the outer cylinder; the residual water guiding structure is arranged on the inner circumference of the water inlet hole and communicated with the residual water discharging hole and the interior of the outer barrel, so that the residual water guiding structure can guide residual water, discharged from the residual water discharging hole, at the bottommost part of the window pad into the outer barrel, washing water is prevented from remaining in the window pad for a long time, and peculiar smell and mould generated by the window pad are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances, and in particular relates to a drum washing machine. Background Art

[0002] Existing drum washing machines are all equipped with window gaskets, which are used to connect the front panel opening of the washing machine and the outer drum opening to ensure the sealing of the washing machine. When washing clothes, the outer drum will vibrate and displace. To prevent the washing machine from being damaged, the window gasket is made of flexible material and has a pleated structure. The deformation of the pleated structure is used to reduce the impact of the shaking of the outer drum on the box body, and at the same time, the tensile strength of the window gasket can be enhanced.

[0003] However, during the washing process, the washing water will enter the pleated part of the window pad and accumulate in the bottom area of ​​the pleated part. Under the action of gravity, the dirt particles attached to the washing water will settle and accumulate in this area. Since the washing water accumulated in the pleated part is almost in a static state, stubborn dirt will form over time. The dirt is located in the pleated part, which is easy to produce odor and breed bacteria, which is not good for the health of consumers.

[0004] In order to guide the washing water remaining in the bottom area of ​​the pleated part into the outer drum, a residual water drain hole is provided at the lowest part of the pleated part, and a water inlet hole is provided on the wall of the outer drum. The residual water drain hole and the water inlet hole are overlapped. However, in actual assembly, the bottom of the inner circumference of the water inlet hole may be flush with or higher than the bottom of the inner circumference of the residual water drain hole, so that the washing water discharged from the bottom of the window mat through the residual water drain hole cannot enter the water guide groove through the water inlet hole, resulting in the washing water remaining in the window mat for a long time, which makes the window mat prone to odor and bacteria growth.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] 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. A residual water guiding structure is arranged on the inner periphery of the water inlet hole, and the residual water guiding structure is respectively connected with the residual water drain hole and the inner part of the outer drum, so that the residual water guiding structure can guide the residual water at the bottom of the window mat discharged from the residual water drain hole to the inner part of the outer drum, thereby preventing the washing water from remaining in the window mat for a long time and avoiding the generation of odor and mold on the window mat.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] The present invention provides a drum washing machine, comprising an outer drum and a window pad installed at the drum mouth of the outer drum, the window pad is provided with a residual water discharge hole at the bottom, the outer drum wall is provided with a water inlet hole overlapping with the residual water discharge hole, a residual water guide structure is provided at the bottom of the inner circumference of the water inlet hole, the residual water guide structure is respectively connected with the residual water discharge hole and the inside of the outer drum, and is used for guiding the residual water at the bottom of the window pad into the outer drum.

[0009] Furthermore, the residual water guiding structure includes a water guide groove, which is in the shape of a long strip and extends along the outer end toward the inner end of the water inlet hole. The two ends of the water guide groove in the extension direction are respectively provided with a first opening connected to the residual water discharge hole and a second opening connected to the inside of the outer cylinder. The bottom of the water guide groove is lower than the bottom of the inner circumference of the residual water discharge hole.

[0010] Furthermore, the water inlet hole and the residual water discharge hole are respectively long strips, and the bottom wall of the water inlet hole and the bottom wall of the residual water discharge hole extend in a straight line along the circumference of the outer cylinder respectively. The bottom wall of the water inlet hole is not lower than the bottom wall of the residual water discharge hole. The water guide groove is arranged on the bottom wall of the water inlet hole. The first open end of the water guide groove extends to be flush with the outer end of the water inlet hole and is connected with the water inlet hole. The window pad below the residual water discharge hole is sealed below the first open end of the residual water discharge hole.

[0011] Furthermore, a protrusion extending along the extension direction of the water guide groove is coaxially provided at the outer end of the outer tube mouth, and the outer end side of the protrusion extends to be connected to the outer tube wall at the outer periphery of the water inlet hole, and the second opening is connected to the interior of the outer tube through the outer tube mouth, and the second opening end of the water guide groove extends to the bottom of the inner periphery of the protrusion, and extends to between the inner end of the water inlet hole and the inner end of the protrusion.

[0012] Furthermore, the residual water guiding structure also includes an auxiliary water guide groove arranged at the bottom of the inner circumference of the water inlet hole, the auxiliary water guide groove extends along the outer end side of the water inlet hole toward the inner end side, the water guide groove is arranged at the bottom of the auxiliary water guide groove, and the bottom of the auxiliary water guide groove is flush with the bottom wall of the water inlet hole.

[0013] Furthermore, a third opening and a fourth opening are respectively provided at both ends of the extension direction of the auxiliary water guide groove, the third opening end of the auxiliary water guide groove extends to be flush with the first opening end of the water guide groove and is connected to each other, the fourth opening end of the auxiliary water guide groove extends to the bottom of the inner circumference of the protrusion, and extends to between the inner end of the water inlet hole and the second opening end of the water guide groove and is connected to the water guide groove.

[0014] Furthermore, the two ends of the auxiliary water guide groove extending along the circumference of the outer tube extend to the two ends of the bottom wall of the water inlet hole respectively, the water guide groove is arranged in the middle part of the auxiliary water guide groove, and the size of the part of the water guide groove exceeding the auxiliary water guide groove gradually expands along the direction from the outer end to the inner end of the water inlet hole.

[0015] Furthermore, the free ends of the protrusion are bent toward the inner circumference and outer circumference of the outer tube respectively to form a first plug-in portion and a second plug-in portion, the water inlet hole is arranged at the bottom of the first plug-in portion, and the window pad is provided with a first plug-in groove for inserting the first plug-in portion and a second plug-in groove for inserting the second plug-in portion.

[0016] Furthermore, the first plug-in portion includes a first plug-in section and a second plug-in section distributed along the outer circumference of the outer tube to the inner circumference, the first plug-in section gradually extends from the outer circumference of the outer tube to the inner circumference and obliquely toward the outside of the outer tube, and the second plug-in section gradually extends from the outer circumference of the outer tube to the inner circumference and obliquely toward the inside of the outer tube, and the water inlet hole is arranged at the bottom of the first plug-in section.

[0017] Furthermore, an inserting groove is formed between the outer cylinder wall, the protruding portion and the second inserting portion at the outer periphery of the outer cylinder opening, and an inserting protrusion inserted into the inserting groove is provided on the window gasket.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0019] By arranging a residual water guide structure on the inner periphery of the water inlet hole, the residual water guide structure is respectively connected with the residual water discharge hole and the inside of the outer cylinder, so that the residual water guide structure can guide the residual water at the bottom of the window mat discharged from the residual water discharge hole to the inside of the outer cylinder, thereby preventing the washing water from remaining in the window mat for a long time and avoiding the generation of odor and mold on the window mat.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0022] Figure 1 is a schematic structural diagram of a drum washing machine provided by an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A magnified view at point A;

[0024] Figure 3 is a cross-sectional view of a drum washing machine provided by an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 Enlarged view at B;

[0026] Figure 5It is a partial enlarged view of the outer cylinder provided in the embodiment of the present invention.

[0027] Icons: 1-outer cylinder; 11-end wall of outer cylinder; 12-mouth of outer cylinder; 13-water inlet hole; 131-bottom wall of water inlet hole; 14-protrusion; 141-water guide groove; 1411-bottom of water guide groove; 1412-first water guide section; 1413-second water guide section; 142-auxiliary water guide groove; 15-first plug-in part; 151-first plug-in section; 152-second plug-in section; 16-second plug-in part; 17-plug-in groove; 2-window pad; 21-drain hole for residual water; 211-bottom wall of residual water guide hole; 22-first plug-in groove; 23-second plug-in groove; 24-plug-in protrusion.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0030] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1-5As shown, the present invention provides a drum washing machine, comprising an outer drum 1 and a window gasket 2 installed at the drum mouth 12 of the outer drum, the window gasket 2 is provided with a residual water discharge hole 21 at the bottom, the outer drum 1 is provided with a water inlet hole 13 overlapping with the residual water discharge hole 21 on the wall of the outer drum 1, and a residual water guide structure is provided at the bottom of the inner periphery of the water inlet hole 13, the residual water guide structure is respectively connected with the residual water discharge hole 21 and the inner part of the outer drum 1, and is used for guiding the residual water at the bottom of the window gasket 2 into the outer drum 1.

[0033] In an embodiment of the present invention, a residual water guide structure is provided on the inner periphery of the water inlet hole 13, and the residual water guide structure is respectively connected with the residual water discharge hole 21 and the inner part of the outer cylinder 1, so that the residual water guide structure can guide the residual water at the bottom of the window gasket 2 discharged from the residual water discharge hole 21 to the inner part of the outer cylinder 1, thereby preventing the washing water from remaining in the window gasket 2 for a long time, and avoiding the window gasket 2 from generating odor and mold.

[0034] The drum washing machine comprises a housing, an outer drum 1 disposed in the housing, and a window gasket 2 installed at the outer drum mouth 12, the window gasket 2 being sealed and connected between the outer drum mouth 12 and the housing to prevent washing water from entering between the housing and the outer drum 1 when the drum washing machine is working. The residual water drain hole 21 and the water inlet hole 13 are arranged to overlap, and the overlap described here is complete overlap or incomplete overlap. The bottom of the inner circumference of the water inlet hole 13 is flush with the bottom of the inner circumference of the residual water drain hole 21, which means that the residual water drain hole 21 and the water inlet hole 13 completely overlap, and the bottom of the inner circumference of the water inlet hole 12 is higher than the bottom of the inner circumference of the residual water drain hole 21, which means that the residual water drain hole 21 and the water inlet hole 12 do not completely overlap.

[0035] It should be noted that in this embodiment, Figure 1 The outer tube 1 in the figure only shows the front half of the outer tube 1, and does not show the back half of the outer tube. The inner side and the outer side described in the following embodiments are respectively relative to the inner part of the outer tube 1. The side close to the inner part of the outer tube 1 is the inner side, and the side away from the inner part of the outer tube 1 is the outer side. The window gasket 2, the outer tube 1, and the outer tube mouth 12 are coaxially arranged;

[0036] The window gasket 2 includes a tubular window gasket 2 body made of a flexible material, and a folded portion protruding toward the outer circumference of the window gasket 2 body is arranged on the circumference of the window gasket 2 body. The deformation of the arranged folded portion can reduce the influence of the shaking of the outer tube 1 on the box body, and can also enhance the tensile strength of the window gasket 2. An annular cavity is formed in the folded portion, and the residual water drain hole 21 is connected to the annular cavity. The residual water drain hole 21 is used to drain the water remaining at the bottom of the annular cavity.

[0037] The outer cylinder 1 comprises a cylinder body with openings at both ends. An outer cylinder end wall 11 is provided at one end of the cylinder body to cover the opening. An outer cylinder opening 12 is provided on the outer cylinder end wall 11 .

[0038] like Figure 2 , Figure 4 and Figure 5As shown, in an embodiment of the present invention, the residual water guiding structure includes a water guide groove 141, which is in the shape of an elongated strip and extends along the outer end of the water inlet hole 13 toward the inner end side. The two ends of the water guide groove 141 in the extension direction are respectively provided with a first opening connected to the residual water discharge hole 21 and a second opening connected to the inside of the outer tube 1, and the groove bottom 1411 of the water guide groove is lower than the bottom of the inner circumference of the residual water discharge hole 21.

[0039] In the embodiment of the present invention, a water guide groove 141 is provided on the inner periphery of the water inlet hole 13, and the groove bottom 1411 of the water guide groove is set lower than the bottom of the inner periphery of the residual water discharge hole 21, so that the washing water discharged from the bottom of the window pad 2 by the residual water discharge hole 21 can enter the groove bottom 1411 of the water guide groove through the water inlet hole 13 by its own gravity, and be guided into the outer drum 1 by the water guide groove 141.

[0040] The water guide groove 141 is provided with a first opening at the outer end side of the water inlet hole 13, rather than a solid groove side wall, to prevent the washing water discharged from the residual water discharge hole 21 from remaining on the solid groove side wall of the water guide groove 141 when entering the water guide groove 141 through the water inlet hole 13 by its own gravity, and the second opening guides the washing water into the water guide groove 141; the second opening is provided to discharge the washing water in the water guide groove 141 into the outer tub 1;

[0041] like Figure 2 and Figure 5 As shown, specifically, the water inlet hole 13 and the residual water discharge hole 21 are respectively long strips, and the bottom wall 131 of the water inlet hole and the bottom wall 211 of the residual water discharge hole extend in a straight line along the circumference of the outer tube 1 respectively. The bottom wall of the water inlet hole 13 is not lower than the bottom wall of the residual water discharge hole 21. The water guide groove 141 is arranged on the bottom wall 131 of the water inlet hole. The first open end of the water guide groove 141 extends to be flush with the outer end of the water inlet hole 13 and communicates with the water inlet hole 13. The window pad 2 below the residual water discharge hole 21 blocks the first open end below the residual water discharge hole 21.

[0042] When the bottom wall of the water inlet hole 13 is higher than the bottom wall of the residual water discharge hole 21, the first opening is higher than the bottom wall of the residual water discharge hole 21, and the window gasket 2 below the residual water discharge hole 21 blocks the portion of the first opening below the residual water discharge hole 21; when the bottom wall of the water inlet hole 13 is aligned with the bottom wall of the residual water discharge hole 21, the first opening is flush with the bottom wall of the residual water discharge hole 21, and the window gasket 2 below the residual water discharge hole 21 blocks the entire first opening;

[0043] The bottom wall of the water inlet hole 13 is not lower than the bottom wall of the residual water hole 21, so that the first opening is not lower than the bottom wall 211 of the residual water hole, especially the first opening is higher than the bottom wall 211 of the residual water hole, so that a diversion area for diverting the washing water is formed between the side walls of the water guide groove 141 located on the left and right sides of the first opening and which are higher than the bottom wall 211 of the residual water hole, so that all the washing water can enter the water guide groove 141, and the washing water is prevented from leaking from the left and right sides of the water guide groove 141. In addition, the side walls of the water guide groove 141 located on the left and right sides of the first opening can block the washing water and guide the washing water from the first opening into the water guide groove 141.

[0044] More specifically, the outer end of the outer tube mouth 12 is provided with a protrusion 14 which is coaxial with the outer tube mouth 12 and extends along the extension direction of the water guide groove 141. The outer end of the protrusion 14 extends to be connected to the wall of the outer tube 1 at the outer periphery of the water inlet hole 13. The second open port is connected to the interior of the outer tube 1 through the outer tube mouth 12. The second open end of the water guide groove 141 extends to the bottom of the inner periphery of the protrusion 14 and extends to between the inner end of the water inlet hole 13 and the inner end of the protrusion 14.

[0045] The water guide groove 141 is not only formed on the bottom wall 131 of the water inlet hole, but also formed on the inner periphery of the protrusion 14, which increases the length of the water guide groove 141 and improves the accuracy of the water guide groove 141 in guiding the washing water; the water guide groove 141 is integrally formed with the inner periphery of the protrusion 14 and the bottom wall 131 of the water inlet hole; the washing water entering the water guide groove 141 enters the outer drum 1 through the second opening and the outer drum mouth 12.

[0046] like Figure 2 , Figure 4 and Figure 5 As shown, in an embodiment of the present invention, the residual water guiding structure also includes a bottom-most auxiliary water guide groove 142 arranged on the inner periphery of the water inlet hole 13, the auxiliary water guide groove 142 extends along the outer end side of the water inlet hole 13 toward the inner end side, and the water guide groove 141 is arranged at the groove bottom 1411 of the auxiliary water guide groove, and the groove bottom 1411 of the auxiliary water guide groove is flush with the bottom wall of the water inlet hole 13.

[0047] In the embodiment of the present invention, part of the residual water discharged from the residual water discharge hole 21 may enter the water guide groove 141, and the other part may enter the auxiliary water guide groove 142. Since the water guide groove 141 is arranged at the groove bottom 1411 of the auxiliary water guide groove, the auxiliary water guide groove 142 can guide the residual water into the water guide groove 141, and then the water guide groove 141 guides the residual water into the inner part of the outer tube 1.

[0048] Furthermore, a third opening and a fourth opening are respectively provided at both ends of the extension direction of the auxiliary water guide groove 142. The third opening end of the auxiliary water guide groove 142 extends to be flush with the first opening end of the water guide groove 141 and is connected to each other. The fourth opening end of the auxiliary water guide groove 142 extends to the bottom of the inner circumference of the protrusion 14, and extends to between the inner end of the water inlet hole 13 and the second opening end of the water guide groove 141 and is connected to the inside of the water guide groove 141.

[0049] The bottom of the inner circumference of the protrusion 14 is concave and cooperates with the bottom of the inner circumference of the water inlet hole 13 to form an auxiliary water guide groove 142, and the groove bottom 1411 of the auxiliary water guide groove is concave to form a water guide groove 141;

[0050] Both ends of the auxiliary water guide groove 142 in the extension direction are open, so that the auxiliary water guide groove 142 is connected with the residual water discharge hole 21 and the inside of the outer tube 1, so that the auxiliary water guide groove 142 can also discharge the residual water discharged from the residual water discharge hole 21 directly into the inside of the outer tube 1;

[0051] Furthermore, the two ends of the auxiliary water guide groove 142 extending along the circumferential direction of the outer tube 1 extend to the two ends of the bottom wall of the water inlet hole 13 respectively, and the water guide groove 141 is arranged in the middle of the auxiliary water guide groove 142. The size of the part of the water guide groove 141 that exceeds the auxiliary water guide groove 142 gradually expands along the direction from the outer end to the inner end of the water inlet hole 13.

[0052] The second open end of the water channel 141 extends to a fourth open end beyond the auxiliary water channel 142, so that the water channel 141 and the auxiliary water channel 142 have an overlapping portion as a first water channel section 1412, and the portion of the water channel 141 beyond the auxiliary water channel 142 is a second water channel section 1413;

[0053] The size of the first water guide section 1412 remains unchanged along the direction from the outer end side to the inner end side of the water inlet hole 13, and the size of the second water guide section 1413 gradually increases along the direction from the outer end side to the inner end side of the water inlet hole 13. The first water guide section 1412 guides the residual water to the second water guide section 1413. The increase in the size of the second water guide section 1413 can slow down the flow rate of water, preventing the residual water from splashing due to excessive flow rate when it flows out of the outer cylinder mouth 12;

[0054] The water guide groove 141 is arranged in the middle of the auxiliary water guide groove 142, so that the auxiliary water guide groove 142 has a left groove bottom and a right groove bottom on the left and right sides of the water guide groove 141, and the left groove bottom and the right groove bottom are respectively connected to the left groove wall and the right groove wall of the auxiliary water guide groove 142 on the left and right sides of the water guide groove 141, and the residual water flowing down from the left groove wall is buffered into the water guide groove 141 through the left groove bottom, and the residual water flowing down from the right groove wall is buffered into the water guide groove 141 through the right groove bottom, so as to prevent water splashing. In the embodiment of the present invention, the free ends of the protrusion 14 are bent toward the inner circumference and the outer circumference of the outer tube 1 to form the first plug-in portion 15 and the second plug-in portion 16, respectively, and the water inlet hole 13 is arranged at the bottom of the first plug-in portion 15, and the window pad 2 is provided with a first plug-in groove 22 for inserting the first plug-in portion 15 and a second plug-in groove 23 for inserting the second plug-in portion 16.

[0055] like Figure 4 As shown, in the embodiment of the present invention, by respectively providing the first plug-in portion 15 and the second plug-in portion 16 on the inner periphery and the outer periphery of the protruding portion 14, the first plug-in portion 15 is inserted into the first plug-in groove 22 on the window gasket 2, and the second plug-in portion 16 is inserted into the second plug-in groove 23 on the window gasket 2, so as to realize the assembly with the window gasket 2 in the inner periphery and the outer periphery direction of the protruding portion 14, and improve the assembly strength between the window gasket 2 and the outer tube 1;

[0056] Specifically, the first plug-in portion 15 includes a first plug-in section 151 and a second plug-in section 152 distributed along the outer circumference to the inner circumference of the outer tube 1. The first plug-in section 151 extends gradually from the outer circumference to the inner circumference of the outer tube 1 and is inclined toward the outside of the outer tube 1. The second plug-in section 152 extends gradually from the outer circumference to the inner circumference of the outer tube 1 and is inclined toward the inside of the outer tube 1. The water inlet hole 13 is arranged at the bottom of the first plug-in section 151.

[0057] The first plug-in portion 15 , the second plug-in portion 16 and the protruding portion 14 are coaxially arranged and are respectively annular. The opening inside the first plug-in portion 15 , the opening inside the second plug-in portion 16 and the opening inside the protruding portion 14 are coaxial with the outer cylinder mouth 12 .

[0058] The bottom of the first plug-in portion 15 is provided with three water inlet holes 13, and the three water inlet holes 13 extend along the circumference of the outer cylinder 1. Among the three water inlet holes 13, the two first water inlet holes 13 are symmetrically arranged with the second water inlet hole 13 as the center. The first plug-in portion 15 is annular, and the second water inlet hole 13 is located at the center of the bottom of the annular first plug-in portion 15. The annular first plug-in portion 15 has a center line located in the middle of the first plug-in portion 15 and extending according to the diameter of the first plug-in portion 15. The center line divides the second water inlet hole 13 into two parts, and the two parts are symmetrically arranged with the center line as the center, mainly the second water inlet hole 13 is provided with a water guide groove 141.

[0059] The first plug-in section 151 and the second plug-in section 152 extend obliquely toward the outside and the inside of the outer tube 1 respectively, and are inserted into the corresponding plug-in grooves on the window gasket 2. The first plug-in section 151 and the second plug-in section 152 can enable the window gasket 2 to maintain its shape and prevent the window gasket 2 from deforming too much in one direction and causing a decrease in sealing strength.

[0060] Furthermore, a plug-in groove 17 is formed between the outer wall of the outer tube 1 at the outer periphery of the outer tube opening 12 , the protruding portion 14 and the second plug-in portion 16 , and a plug-in protrusion 24 inserted into the plug-in groove 17 is provided on the window gasket 2 .

[0061] On the basis of the assembly of the first plug-in portion 15 and the second plug-in portion 16 with the window gasket 2 , the plug-in groove 17 on the outer tube 1 can be inserted into the plug-in protrusion 24 on the window gasket 2 , further enhancing the assembly strength between the outer tube 1 and the window gasket 2 .

[0062] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A drum washing machine, comprising an outer drum and a window pad installed at the outer drum opening, the bottom of the window pad is provided with a residual water hole, and the outer drum wall is provided with a water inlet hole arranged overlapping with the residual water hole, characterized in that: A residual water guiding structure is provided at the bottom of the inner circumference of the water inlet hole, and the residual water guiding structure is respectively connected with the residual water discharge hole and the inside of the outer tube, and is used to guide the residual water at the bottom of the window pad into the outer tube.

2. The drum washing machine according to claim 1, characterized in that: The residual water guiding structure includes a water guide groove, which is in the shape of a long strip and extends along the outer end of the water inlet hole toward the inner end side. The two ends of the water guide groove in the extension direction are respectively provided with a first opening connected to the residual water discharge hole and a second opening connected to the inside of the outer cylinder. The bottom of the water guide groove is lower than the bottom of the inner circumference of the residual water discharge hole.

3. The drum washing machine according to claim 2, characterized in that: The water inlet hole and the residual water discharge hole are respectively long strips, and the bottom wall of the water inlet hole and the bottom wall of the residual water discharge hole extend in a straight line along the circumference of the outer cylinder respectively. The bottom wall of the water inlet hole is not lower than the bottom wall of the residual water discharge hole. The water guide groove is arranged on the bottom wall of the water inlet hole. The first open end of the water guide groove extends to be flush with the outer end of the water inlet hole and communicates with the water inlet hole. The window pad below the residual water discharge hole is blocked below the first open end of the residual water discharge hole.

4. The drum washing machine according to claim 3, characterized in that: A protrusion extending along the extension direction of the water guide groove is coaxially provided at the outer end of the outer tube mouth, and the outer end side of the protrusion extends to be connected to the outer tube wall at the outer periphery of the water inlet hole, and the second opening is connected to the interior of the outer tube through the outer tube mouth, and the second opening end of the water guide groove extends to the bottom of the inner periphery of the protrusion, and extends to between the inner end of the water inlet hole and the inner end of the protrusion.

5. The drum washing machine according to any one of claims 1 to 4, characterized in that: The residual water guiding structure also includes an auxiliary water guide groove arranged at the bottom of the inner circumference of the water inlet hole, the auxiliary water guide groove extends from the outer end side to the inner end side of the water inlet hole, the water guide groove is arranged at the bottom of the auxiliary water guide groove, and the bottom of the auxiliary water guide groove is flush with the bottom wall of the water inlet hole.

6. The drum washing machine according to claim 5, characterized in that: A third opening and a fourth opening are respectively provided at both ends of the auxiliary water guide groove in the extension direction. The third opening end of the auxiliary water guide groove extends to be flush with the first opening end of the water guide groove and is connected to each other. The fourth opening end of the auxiliary water guide groove extends to the bottom of the inner circumference of the protrusion, and extends to between the inner end of the water inlet hole and the second opening end of the water guide groove and is connected to the water guide groove.

7. The drum washing machine according to claim 6, characterized in that: The two ends of the auxiliary water guide groove extending along the circumference of the outer tube extend to the two ends of the bottom wall of the water inlet hole respectively. The water guide groove is arranged in the middle of the auxiliary water guide groove. The size of the part of the water guide groove exceeding the auxiliary water guide groove gradually expands from the outer end to the inner end of the water inlet hole.

8. The drum washing machine according to claim 5, characterized in that: The free ends of the protrusions are bent toward the inner and outer circumferences of the outer tube to form a first plug-in portion and a second plug-in portion, respectively. The water inlet is arranged at the bottom of the first plug-in portion, and the window pad is provided with a first plug-in groove for inserting the first plug-in portion and a second plug-in groove for inserting the second plug-in portion.

9. The drum washing machine according to claim 8, characterized in that: The first plug-in portion includes a first plug-in section and a second plug-in section distributed along the outer circumference of the outer tube to the inner circumference, the first plug-in section gradually extends from the outer circumference of the outer tube to the inner circumference and obliquely toward the outside of the outer tube, and the second plug-in section gradually extends from the outer circumference of the outer tube to the inner circumference and obliquely toward the inside of the outer tube, and the water inlet hole is arranged at the bottom of the first plug-in section.

10. The drum washing machine according to claim 8, characterized in that: An inserting groove is formed between the outer cylinder wall, the protruding part and the second inserting part at the outer periphery of the outer cylinder mouth, and an inserting protrusion inserted into the inserting groove is arranged on the window pad.

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