A drum washing machine

Abstract

The application discloses a drum washing machine, which comprises an outer drum with an outer drum body and an outer drum flange arranged at the front end of the outer drum body; an inner drum with an inner drum body and an inner drum flange arranged at the front end of the inner drum body; a middle part of the outer drum flange is provided with an outer drum turnup which surrounds an outer drum opening and extends outward and backward; a middle part of the inner drum flange is provided with an inner drum turnup which surrounds an inner drum opening and extends forward and bends outward; the rear part of the outer drum turnup is located outside the inner drum turnup. The plane where the rear end of the outer drum turnup is located is located behind the front end of the inner drum turnup, the outer drum turnup and the inner drum turnup are partially overlapped in the front-rear direction and form a labyrinth structure; during the dehydration process, the water flow which moves inward between the outer drum flange and the inner drum flange is blocked by the outer drum turnup and the inner drum turnup, so that the water flow is prevented from being thrown on the observation window and the water stringing phenomenon of the observation window is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of washing machines, and particularly relates to a drum washing machine. BACKGROUND

[0002] The drum washing machine comprises a box body, a sleeve set outer drum and an inner drum arranged in the box body, a driving motor for driving the inner drum to rotate; an outer drum opening is formed in the front side of the outer drum, and an inner drum opening matched with the outer drum opening is arranged in the front side of the inner drum, and the outer drum opening is located in front of the inner drum opening; the drum washing machine further comprises an openable and closable door body, and the door body is provided with an observation window which extends into the outer drum opening. The working mode of the drum washing machine is similar to the principle of a rod hammer hitting clothes. During working, the inner drum rotates under the driving of the driving motor. With the rotation of the inner drum, the clothes are repeatedly lifted and dropped in the drum, and finally are washed clean under the joint action of washing powder and water.

[0003] When the existing drum washing machine is dehydrated at high speed, a large amount of water and a small amount of foam splashed out by the soaked clothes will first flow into the outer drum from the inner drum, but the flow of the water and the small amount of foam to the outer drum drain port will be hindered by the rotating air flow, forming a vortex. Due to the inability to be discharged in time, the water and the small amount of foam will be rotated out along the tangent direction between the inner and outer flanges of the drum opening under the action of rotational inertia, splashed onto the observation window, and flowed down along the observation window, causing water splashing phenomenon. On the one hand, it will lead to a decrease in the spin-drying rate, and on the other hand, the water stains and foam left on the observation window will be difficult to clean, and long-term use will cause user complaints. In addition, the gap between the inner and outer flanges of the drum opening is easy to drop long strip tools during installation or use, and it is difficult to take out, which is a difficult-to-ignore hidden danger.

[0004] The current solutions to the water splashing phenomenon to the observation window are as follows: 1. A small amount of rubber pad is filled between the inner and outer drums along the outer drum flange to reduce the gap between the inner and outer drum flanges, thereby reducing the water splashing phenomenon. The increase of the rubber pad will increase the cost, and the rubber has a large deformation amount, poor stability, and is not suitable for larger drum washing machines, such as industrial machines, and has insufficient service life, load bearing weight and stability; 2. The smooth transition radius of the outer drum front flange drum opening in the radial direction is changed, which has little effect on changing the smooth transition radius, and increases the dehydration time, which leads to an increase in the overall washing time, easily causes user complaints, and increases the energy consumption.

[0005] The above information disclosed in the background of the application is only used to increase the understanding of the background of the application, and therefore, it can include prior art known by those skilled in the art. SUMMARY

[0006] The present application aims at the above-mentioned problems in the prior art, and provides a drum washing machine, wherein the outer drum flange is outwardly and rearwardly extended, so as to avoid the water leakage phenomenon of the observation window.

[0007] To achieve the above-mentioned object, the present application adopts the following technical solutions:

[0008] A drum washing machine comprises:

[0009] An outer drum has an outer drum body and an outer drum flange arranged at the front end of the outer drum body;

[0010] An inner drum has an inner drum body and an inner drum flange arranged at the front end of the inner drum body;

[0011] The middle part of the outer drum flange is provided with an outer drum flange which surrounds the outer drum opening and is outwardly and rearwardly extended;

[0012] The middle part of the inner drum flange is provided with an inner drum flange which surrounds the inner drum opening and is forwardly extended and outwardly bent;

[0013] The rear part of the outer drum flange is located outside the inner drum flange.

[0014] Further, the plane where the rear end of the outer drum flange is located is located behind the front end of the inner drum flange.

[0015] Further, the outer drum flange has an outer edge part connected with the outer drum flange and outwardly extended, the first return cavity is formed between the outer drum flange and the outer edge part, and the first outlet is formed between the rear end of the outer drum flange and the inner drum flange.

[0016] Further, the size of the outer drum flange in the front-rear direction is greater than the size of the first opening.

[0017] Further, the ratio of the size of the outer drum flange in the front-rear direction to the size of the first opening is 3-7.

[0018] Further, the inner drum flange has an inner edge part connected with the inner drum flange and radially outwardly extended, the second return cavity is formed between the inner drum flange and the inner edge part, the second opening is formed between the end part of the inner drum flange and the inner edge part, and the plane where the rear end of the outer drum flange is located is located behind the end part of the inner drum flange.

[0019] Further, the inner drum flange has an inner edge part connected with the inner drum flange and radially outwardly extended, the first inner inclined part is outwardly and rearwardly inclined along the outer side of the inner edge part, and the parallel plane of the rear end of the outer drum flange and the first inner inclined part is intersected with the inner drum flange.

[0020] Further, the rear end of the outer cylinder flange is located at the front side of the first inner inclined part.

[0021] Further, the inner cylinder flange further has a second inner inclined part which is outwardly and forwardly inclined along the outer side of the first inner inclined part, and an inner extension which extends radially outwardly along the outer side of the second inner inclined part.

[0022] Further, the inner cylinder flange further has a third inner inclined part which extends outwardly and rearwardly from the inner extension, and a plurality of grooves which are circumferentially spaced between the inner extension and the third inner inclined part, and the groove bottom of the grooves connects the rear end of the third inner inclined part and the inner side of the inner extension.

[0023] Further, the outer cylinder flange has an outer edge part which is connected to the outer cylinder flange, and a first outer inclined part which is outwardly and rearwardly inclined along the outer side of the outer edge part, and the first outer inclined part is parallel to the first inner inclined part.

[0024] Further, the outer cylinder flange has a second outer inclined part which extends outwardly and rearwardly from the outer side of the first outer inclined part, and the included angle between the second outer inclined part and the radial plane is smaller than the included angle between the first outer inclined part and the radial plane.

[0025] Further, the outer cylinder flange further has a reinforcing ring which is located at the outer side of the connection between the first outer inclined part and the second outer inclined part.

[0026] Further, the outer cylinder flange has a first outer flange part which extends rearwardly, a second outer flange part which extends outwardly and rearwardly and is connected to the rear end of the first outer flange part, and an outer extension part of the flange which extends rearwardly and is connected to the second outer flange part.

[0027] Further, the outer extension part of the flange is located at the outer side of the inner cylinder flange.

[0028] Further, the inner cylinder flange has a front edge part which extends forwardly, and an inner flange part which extends outwardly and rearwardly and is provided at the front end of the front edge part.

[0029] Further, the drum washing machine further comprises a door body which can open and close the outer cylinder opening, and a sealing strip which is provided on the door body and is used to seal with the outer cylinder flange.

[0030] Further, the door body has an observation window, the sealing strip has a first sealing groove which covers the edge of the observation window, and a sealing edge which extends outwardly and rearwardly and is bent inwardly at the inner end of the rear groove wall of the first sealing groove; in the closed state of the door body, the sealing edge seals with the outer cylinder flange.

[0031] Further, the sealing strip further has a door shell located outside the observation window, the sealing strip has a second sealing groove connected and arranged with the inner end of the outer groove wall of the first sealing groove, and the second sealing groove is located at the front side of the first sealing groove and covers the inner edge of the door shell.

[0032] Compared with the prior art, the advantages and positive effects of the present application are that the plane where the rear end of the outer cylinder flange is located is behind the front end of the inner cylinder flange, the outer cylinder flange and the inner cylinder flange are partially overlapped in the front-rear direction, and a labyrinth structure is formed; during the dehydration process, the water flow that moves inward between the outer cylinder flange and the inner cylinder flange is blocked by the outer cylinder flange and the inner cylinder flange, so as to avoid splashing the water flow on the observation window and to avoid the phenomenon of water stringing on the observation window.

[0033] Other features and advantages of the present application will become more apparent after reading the specific embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0035] Figure 1 Structure schematic diagram of an embodiment of the drum washing machine proposed in the present application;

[0036] Figure 2 Structure schematic diagram of another angle in the present application; Figure 1

[0037] Structure schematic diagram of another angle in the present application; Figure 3 Figure 2 Structure schematic diagram of another angle in the present application;

[0038] Figure 4 Structure schematic diagram of another angle in the present application; Figure 3

[0039] Structure schematic diagram of another angle in the present application; Figure 5 Figure 2 Structure schematic diagram of another angle in the present application;

[0040] Figure 6 Structure schematic diagram of another angle in the present application; Figure 5

[0041] Structure schematic diagram of another angle in the present application; Figure 7 Figure 6 Structure schematic diagram of another angle in the present application;

[0042] Figure 8 Structure schematic diagram of another angle in the present application; Figure 1 ​​​Structure schematic diagram of the inner cylinder after removing the door body from the vertical front and back section;

[0043] Figure 9 For Figure 8 Structure schematic diagram of the D area;

[0044] Figure 10 For Figure 9 Structure schematic diagram of the outer cylinder flange section;

[0045] Figure 11 For Figure 9 Structure schematic diagram of the inner cylinder flange section;

[0046] Figure 12 For Figure 9 Structure schematic diagram of the sealing strip section;

[0047] Figure 13 For Figure 8 Structure schematic diagram of the E area;

[0048] Figure 14 For Figure 8 Structure schematic diagram of the other angle after removing the door body. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0050] In the description of the present application, it should be noted that the terms “upper”, “lower”, “left”, “right” and the like indicate the position or location relationship based on the position relationship shown in the drawings, and in the normal use state of the drum washing machine, the side close to the user is “front”, and vice versa is “rear”; the direction close to the inner cylinder axis is “inner”, and vice versa is “outer”. The terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, structure and operation, so it cannot be understood as a limitation on the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the features with “first”, “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.

[0051] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] Referring to Figures 1-14 It is an embodiment of the drum washing machine provided by the present application, a drum washing machine 100 comprising: an outer drum 10, an inner drum 20 and a door body 30, the outer drum 10 and the inner drum 20 are arranged in a sleeve, the outer drum 10 has an outer drum body 11 and an outer drum flange 12 arranged at the front end of the outer drum body 11, the inner drum 20 has an inner drum body 21 and an inner drum flange 22 arranged at the front end of the inner drum body 21; the outer drum flange 12 is located in front of the inner drum flange 22, and the outer drum port 121 and the inner drum port 221 are arranged in front and back. The outer drum flange 12 is annular structure, the middle part of the outer drum flange 12 is provided with an outer drum turn-up 122 surrounding the outer drum port 121, the outer drum turn-up 122 extends outward and rearward; the inner drum flange 22 is annular structure, the middle part of the inner drum flange 22 is provided with an inner drum turn-up 222 surrounding the inner drum port 221, the inner drum turn-up 222 extends forward and bends outward. The rear part of the outer drum turn-up 122 is located outside the inner drum turn-up 222, that is, the plane where the rear end of the outer drum turn-up 122 is located is located behind the front end of the inner drum turn-up 222, the outer drum turn-up 122 and the inner drum turn-up 222 have part of overlap in front and back direction, and form a labyrinth structure, so that the water flow moving inward between the outer drum flange 12 and the inner drum flange 22 is blocked by the outer drum turn-up 122 and the inner drum turn-up 222 in the dehydration process, avoiding the water flow from being thrown on the observation window, avoiding the phenomenon of water stringing on the observation window.

[0053] Referring to Figure 9 and Figure 10As shown, the outer cylinder flange 12 has an outer edge 123 connected with the outer cylinder flange 122 and extending outwardly, the first return cavity 126 is formed between the outer cylinder flange 122 and the outer edge 123, and the first outlet 127 is formed between the rear end of the outer cylinder flange 122 and the inner cylinder flange 22. During the dehydration process, the water flowing inwardly between the outer cylinder flange 12 and the inner cylinder flange 22 is first blocked by the outer cylinder flange 12, most of which flows into the first return cavity 126, and then flows back between the outer cylinder flange 12 and the inner cylinder flange 22. A part of the water flow can flow inwardly from the first outlet 127, and then be blocked by the inner cylinder flange 222 and fall to the inner side of the outer cylinder flange 122 and the first outlet 127. Since the outer cylinder flange 122 extends outwardly and rearwardly, the water flowing to the inner side of the outer cylinder flange 122 will flow back between the outer cylinder flange 12 and the inner cylinder flange 22 through the first outlet 127, avoiding the water flow from between the outer cylinder flange 122 and the inner cylinder flange 222.

[0054] Specifically, the size of the outer cylinder flange 122 in the front-rear direction is much larger than the size of the first opening 127, and preferably the ratio of the size of the outer cylinder flange 122 in the front-rear direction to the size of the first opening 127 is 3-7.

[0055] Referring to Figure 9 , Figure 11 and Figure 13 , the inner cylinder flange 22 has an inner edge 223 connected with the inner cylinder flange 222, the inner edge 223 extends radially outwardly along the rear end of the inner cylinder flange 222, and the second return cavity 228 is formed between the inner cylinder flange 222 and the inner edge 223. The second opening 229 is formed between the end of the inner cylinder flange 222 and the inner edge 223, and the plane where the rear end of the outer cylinder flange 122 is located is located on the rear side of the end of the inner cylinder flange 222, or in other words, the plane where the rear end of the outer cylinder flange 122 is located passes through the second opening 229. The water flow radially thrown inwardly from the first opening 127 can all flow into the second return cavity 228; the water flow flowing back from the second return cavity 228 falls to the inner side of the outer cylinder flange 122, and then flows into the first outlet 127; a part of the water flow directly flows into the first outlet 127 and flows back between the outer cylinder flange 12 and the inner cylinder flange 22.

[0056] The inner cylinder flange 22 has an inner edge 223 connected with the inner cylinder flange 222, a first inner inclined portion 224 inclined outwardly and rearwardly along the outer side of the inner edge 223, and a parallel surface of the rear end of the outer cylinder flange 122 and parallel to the first inner inclined portion 224 intersecting with the inner cylinder flange 222. The first inner inclined portion 224 is arranged to increase the structural strength of the inner cylinder flange 22, and the rearward extension of the first inner inclined portion 224 increases the distance between the outer cylinder flange 12 and the inner cylinder flange 22, reduces the speed of the water flow, and reduces the impact force of the water flow reaching the first outlet 127. The water flow between the outer cylinder flange 12 and the inner cylinder flange 22 moves toward the middle, flows outwardly in the radial direction, that is, flows in the tangential direction, and part of the water flow impacts the first inner inclined portion 224 and flows inwardly along the inclined direction of the first inner inclined portion 224. The water flow in the radial direction flows out of the first outlet 127 and into the second return cavity 228, and the water flow flowing inwardly along the inclined direction of the first inner inclined portion 224 impacts the outer side of the inner cylinder flange 222, falls back to the inner side of the outer cylinder flange 122, and then flows into the first outlet 127 without flowing inwardly between the outer cylinder flange 122 and the inner cylinder flange 222. The rear end of the outer cylinder flange 122 is located on the front side of the first inner inclined portion 224.

[0057] The inner cylinder flange 22 further has a second inner inclined portion 225 inclined outwardly and forwardly along the outer side of the first inner inclined portion 224, and an inner extension 226 extending outwardly along the outer side of the second inner inclined portion 225. The second inner inclined portion 225 is arranged to further increase the structural strength of the inner cylinder flange 22, and the volume between the outer cylinder flange 12 and the inner cylinder flange 22 is increased, the area inwardly along the second inner inclined portion 225 is increased in the outward-inward direction between the outer cylinder flange 12 and the inner cylinder flange 22, the speed of the water flow is reduced, and part of the water flow impacts the first inner inclined portion 224 to further consume energy and then flows inwardly along the second inner inclined portion 225.

[0058] The inner cylinder flange 22 further has a third inner inclined portion 227 extending outwardly and rearwardly from the inner extension 226, and a plurality of grooves 220 are arranged at the circumferential interval between the inner extension 226 and the third inner inclined portion 227. The groove bottom of the groove 220 connects the rear end of the third inner inclined portion 227 and the inner side of the inner extension 226, which is arranged to increase the structural strength of the inner cylinder flange 22. The distance from the outer side of the groove 220 to the outer cylinder flange 12 is greater than the distance from the third inner inclined portion 227 to the outer cylinder flange 12, which is arranged to return the water flow between the outer cylinder flange 12 and the inner cylinder flange 22 to the bottom of the outer cylinder 10.

[0059] Referring to Figure 9 , Figure 10 and Figure 13As shown, the outer drum flange 12 has an outer edge 123 connected with the outer drum flange 122, a first outer inclined portion 124 inclined outwardly and rearwardly along the outer side of the outer edge 123, and the first outer inclined portion 124 is arranged in parallel with the first inner inclined portion 224. By arranging the first outer inclined portion 124, the structural strength of the outer drum flange 12 is improved, and the water flow flowing inwardly between the outer drum flange 12 and the inner drum flange 22 is made to flow along the direction of the first outer inclined portion 124, so as to reduce the water flow speed and make most of the water flow impact into the first return cavity 126.

[0060] The outer drum flange 12 has a second outer inclined portion 125 extending outwardly and rearwardly from the outer side of the first outer inclined portion 124, the second outer inclined portion 125 is a slightly inclined inclined surface, and the included angle between the second outer inclined portion 125 and the radial plane is smaller than the included angle between the first outer inclined portion 124 and the radial plane. The included angle between the first outer inclined portion 124 and the radial plane is 40°-50°, and the included angle between the second outer inclined portion 125 and the radial plane is 3°-10°. By arranging the second outer inclined portion 125, the structural strength of the outer drum flange 12 is improved, and the water flow speed flowing inwardly between the outer drum flange 12 and the inner drum flange 22 is reduced. The outer drum flange 12 further has a reinforcing ring 128 located outwardly of the connection between the first outer inclined portion 124 and the second outer inclined portion 125, which is beneficial to increase the structural strength of the outer drum flange 12.

[0061] Referring to Figure 13 As shown, the outer drum flange 122 has a first outer folding portion 1221 rearwardly, a second outer folding portion 1222 connected with the rear end of the first outer folding portion 1221, and an outer extension portion 1223 connected with the second outer folding portion 1223 and extending rearwardly. The second outer folding portion 1222 extends outwardly and rearwardly, the outer extension portion 1223 is located outwardly of the inner drum flange 222, and the arc surface on the inner side of the outer drum flange 122 is located inwardly of the outer side of the inner drum flange 222, that is, the inner drum flange 222 is located in the slot formed by the outer drum flange 122. The inner drum flange 222 has a front edge 2221 extending forwardly, and an inner folding portion 2222 outwardly and rearwardly arranged along the front end of the front edge 2221.

[0062] Referring to Figure 8 and Figure 9 As shown, the drum washing machine 100 further comprises a door body 30 which can open and close the outer drum opening 121, and a sealing strip 33 for sealing with the outer drum flange 12 is arranged on the door body 30. By arranging the sealing strip 33 on the door body 30, and in the closed state of the door body 30, the sealing strip 33 directly seals and contacts with the outer drum flange 12, so as to realize the sealing between the door body 30 and the outer drum 10, which is beneficial to simplify the sealing structure and improve the sealing effect.

[0063] The door body 30 has an observation window 31 and a door shell 32, the sealing strip 33 has a first sealing groove 331 covering the edge of the observation window 31, a sealing edge 332 is arranged to bend outwardly and extend rearwardly along the inner end of the rear groove wall of the first sealing groove 331; in the closed state of the door body 30, the sealing edge 332 is sealed with the outer cylinder flange 12. By arranging the first sealing groove 331, the sealing installation of the observation window 31 is realized, and the sealing between the door body 30 and the outer cylinder flange 12 is realized by arranging the sealing edge 332. The door body 30 also has a door inner shell (not shown in the figure), which is located at the rear side of the edge of the observation window 31, and the door inner shell and the door shell 32 clamp the sealing strip 33 on the edge of the observation window 31.

[0064] Referring to Figure 12 As shown, the sealing strip 33 also has a door shell 32 located outside the observation window 31, and the sealing strip 33 has a second sealing groove 333 arranged in connection with the inner end of the outer groove wall of the first sealing groove 331, the second sealing groove 333 has an outer opening, the second sealing groove 333 is located at the front side of the first sealing groove 331, and the second sealing groove 333 covers the inner edge of the door shell 32.

[0065] The door body 30 is hingedly arranged on the outer cylinder flange 12, and a first reinforcing protrusion 129 protruding forward is arranged on the outer cylinder flange 12, and the door body 30 is arranged on the first reinforcing protrusion 129; a sealing strip 33 for sealing is arranged between the door body 30 and the outer cylinder flange 12. By arranging the door body 30 on the outer cylinder flange 12, the door body 30 and the outer cylinder 10 are relatively stationary, avoiding relative movement between the two, even if the outer cylinder has a large amplitude of shaking, the door body 30 shakes together with the outer cylinder 10, which is conducive to ensuring the sealing performance; and the sealing strip 33 can be arranged between the door body 30 and the outer cylinder flange 12 to realize the sealing between the two, which is conducive to increasing the sealing effect; the first reinforcing protrusion 129 is arranged, which is conducive to increasing the structural strength and can bear the door body 30.

[0066] Referring to Figure 6 As shown, the first reinforcing protrusion 129 has a first bottom 1291 and a first side 1292 arranged to extend rearwardly and obliquely along the edge of the first bottom 1291, the first bottom 1291 is a planar structure, and the rear end of the first side 1292 is connected with the outer cylinder flange 12. The area enclosed by the rear end of the first side 1291 is greater than the area of the first bottom 1291, that is, the first side 1292 approaches the first bottom 1291 in the forward direction; by arranging the first side 1292 to be oblique, the structural strength is improved, and the stress-bearing capacity of the first reinforcing protrusion 129 is increased. The first bottom 1291 is arranged to be planar, which is conducive to the installation and connection of the door body 30. The size of the first side 1292 in the direction from outside to inside is shortened. The included angle between the first side 1292 and the outer cylinder flange 12 is 130°-140°; preferably, the included angle between the first side 1292 and the outer cylinder flange 12 is 145°.

[0067] Referring to Figure 4 As shown, in order to ensure the structural strength of the first reinforcing convex 129, the size of the first reinforcing convex 129 cannot be too small, but also not too large. The outer cylinder flange 12 is annular structure, the radial size of the outer cylinder flange 12 is the difference between the outer diameter and the inner diameter of the outer cylinder flange 12; the size of the first reinforcing convex 129 in the left-right direction is as large as possible, the ratio of the size of the first reinforcing convex 129 in the left-right direction to the radial size of the outer cylinder flange 12 is 0.8-0.95. The size of the first reinforcing convex 129 in the left-right direction is larger than the size of the first reinforcing convex 129 in the up-down direction, the ratio of the size of the first reinforcing convex 129 in the up-down direction to the size of the first reinforcing convex 129 in the left-right direction is 0.25-0.35.

[0068] Referring to Figure 3 As shown, the door hinge 40 is arranged between the door body 30 and the first reinforcing convex 129, the door hinge 40 has a first branch chain 41 fixedly arranged on the first bottom 1291; the first branch chain 41 has a first fixed plate 411 fixedly arranged on the first bottom 1291, and a first hinge part 412 arranged and extending forwardly along the first fixed plate 411. The area of the first bottom 1291 is equal to or slightly larger than the area of the first fixed plate 411.

[0069] For the fixation between the first fixed plate 411 and the first reinforcing convex 129, in the embodiment, the first bottom 1291 and the first fixed plate 411 are fixed by the fastener 415, the first fastening hole is arranged on the first bottom 1291, the second fastening hole matched with the first fastening hole is arranged on the first fixed plate 411, and the fastener 1291 passes through the first fastening hole and the second fastening hole. The first bottom 1291 and the first fixed plate 411 are fixed by the fastener 415, which is beneficial to ensure the firmness of the fixation. In order to facilitate the installation and positioning of the first fixed plate 411, the positioning convex 12911 is arranged on the first bottom 1291, and the positioning hole 4111 matched with the positioning convex 12911 is arranged on the first fixed plate 411.

[0070] The door hinge 40 has a second branch chain 42 fixedly arranged on the door body 30, the second branch chain 42 has a second fixed plate 421 fixedly arranged on the door body 30, and a second hinge part 422 arranged and extending outwardly along the second fixed plate 421, the second hinge part 422 is hinged with the first hinge part 412. The limiting plate 413 is arranged and extends forwardly on the first fixed plate 411, and the limiting plate 413 is used for limiting the opening of the door body 30 to the position; after the door body 30 is opened to the position that the door body 30 contacts with the limiting plate 413, the door body 30 cannot be continuously opened.

[0071] Referring to Figure 2As shown, the second reinforcing protrusion 120 protruding forward is arranged on the outer cylinder flange 12, and the door lock 50 matched with the door body 30 is fixed on the second reinforcing protrusion 120; by arranging the second reinforcing protrusion 120, the structural strength is increased.

[0072] The above examples are only used to illustrate the technical solutions of the present application, but not to limit the present application; although the present application has been described in detail with reference to the foregoing examples, the technical solutions recorded in the foregoing examples can be modified by those skilled in the art, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions claimed by the present application.

Claims

1. A drum-type washing machine, characterized by, The utility model relates to a double-layered cylinder, comprising: an outer cylinder having an outer cylinder body and an outer cylinder flange arranged at the front end of the outer cylinder body; an inner cylinder having an inner cylinder body and an inner cylinder flange arranged at the front end of the inner cylinder body; a middle portion of the outer cylinder flange is provided with an outer cylinder turnup around an outer cylinder opening, which extends outwardly and rearwardly; a middle portion of the inner cylinder flange is provided with an inner cylinder turnup around an inner cylinder opening, which extends forwardly and outwardly; a rear portion of the outer cylinder turnup is located outside the inner cylinder turnup; the inner cylinder flange has an inner edge portion extending radially and connected with the inner cylinder turnup, a first inner inclined portion inclined outwardly and rearwardly along the outer side of the inner edge portion, and a parallel surface arranged at the rear end of the outer cylinder turnup and parallel to the first inner inclined portion, which intersects with the inner cylinder turnup.

2. The drum-type washing machine according to claim 1, characterized in that, a plane where the rear end of the outer cylinder turnup is located is located rearward of the front end of the inner cylinder turnup.

3. The drum-type washing machine according to claim 1, characterized in that, the outer cylinder flange has an outer edge portion extending outwardly and connected with the outer cylinder turnup, a first return cavity is formed between the outer cylinder turnup and the outer edge portion, and a first outlet is formed between the rear end of the outer cylinder turnup and the inner cylinder flange.

4. The drum-type washing machine according to claim 1, characterized in that, the inner cylinder flange has an inner edge portion extending radially and outwardly and connected with the inner cylinder turnup, a second return cavity is formed between the inner cylinder turnup and the inner edge portion, a second opening is formed between the end portion of the inner cylinder turnup and the inner edge portion, and a plane where the rear end of the outer cylinder turnup is located is located rearward of the end portion of the inner cylinder turnup.

5. The drum-type washing machine according to any one of claims 1 to 4, characterized in that, the inner cylinder flange further has a second inner inclined portion inclined outwardly and forwardly along the outer side of the first inner inclined portion, and an inner extension portion extending radially outwardly along the outer side of the second inner inclined portion.

6. The drum-type washing machine according to claim 5, characterized in that, the inner cylinder flange further has a third inner inclined portion extending outwardly and rearwardly from the outer extension portion, a plurality of grooves are arranged between the inner extension portion and the third inner inclined portion in the circumferential direction, and the groove bottoms of the grooves are connected with the inner side of the inner extension portion and the rear end of the third inner inclined portion.

7. The drum-type washing machine according to any one of claims 1 to 4, characterized in that, the outer cylinder flange has an outer edge portion connected with the outer cylinder turnup, a first outer inclined portion inclined outwardly and rearwardly along the outer side of the outer edge portion, and the first outer inclined portion is arranged parallel to the first inner inclined portion.

8. The drum-type washing machine according to any one of claims 1 to 4, characterized in that, the outer cylinder turnup has a first outer turnup portion rearwardly, a second outer turnup portion extending outwardly and rearwardly connected with the rear end of the first outer turnup portion, and a turnup outer extension portion extending rearwardly connected with the second outer turnup portion.

9. The drum-type washing machine according to any one of claims 1 to 4, characterized in that, the inner cylinder turnup has a front edge portion extending forwardly, and an inner turnup portion inclined outwardly and rearwardly arranged at the front end of the front edge portion.

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