Roller washing machine

Abstract

The utility model discloses a roller washing machine. The roller washing machine comprises a box body; the outer cylinder is arranged in the box body; the inner barrel is rotationally arranged in the outer barrel, a water containing cavity for containing washing water is formed between the outer bottom of the inner barrel and the inner bottom of the outer barrel, and the water containing cavity is communicated with the interior of the inner barrel; the annular shell is arranged in the water containing cavity and fixedly connected with the outer bottom of the inner barrel, the annular shell extends along the edge of the outer bottom of the inner barrel, an annular cavity is formed in the annular shell, a plurality of water leakage holes are formed in the annular shell at intervals in the circumferential direction of the annular shell, and the annular cavity communicates with the water containing cavity through the water leakage holes; and a movable improvement object is accommodated in the annular cavity. The roller washing machine can prolong the contact time of the improved object and the washing water and improve the washing effect.

Description

Technical Field

[0001] The present application relates to the technical field of laundry equipment, and in particular to a drum washing machine. Background Art

[0002] With the advancement of living technology, washing machines have entered more and more households as a helper for people to wash clothes.

[0003] Washing machines are usually divided into pulsator washing machines and drum washing machines according to different washing principles. Among them, the drum body of the drum washing machine includes an inner drum and an outer drum, and the inner drum is rotatably arranged in the outer drum, and a washing cavity is formed in the inner drum, and the clothes are placed in the washing cavity for washing. At present, in addition to the conventional washing function, some high-end models of drum washing machines also have the function of using improvement materials to improve the washing water effect and enhance the washing effect. For example, the improvement materials can include scale inhibitors and bactericides. The scale inhibitors inhibit the formation of scale, and the bactericides disinfect and sterilize the washing water.

[0004] In the related art, the improvement material is placed in the lifting ribs. When the lifting ribs rotate downward with the inner drum, the improvement material contacts the washing water. As a result, when the lifting ribs rotate upward with the inner drum, the improvement material cannot contact the washing water. The contact time between the improvement material and the washing water is short, the concentration dissolved in the washing water is effective, and the improvement effect is not good. Utility Model Content

[0005] The purpose of this application is to solve the above-mentioned problems and other problems.

[0006] The purpose of the present application is also to increase the contact time between the improved substance and the washing water.

[0007] The purpose of this application is also to enhance the effect of the improved product.

[0008] The purpose of the present application is also to reduce the impact on the structure of the inner tube itself.

[0009] The purpose of the present application is also to reduce the vibration of the washing machine during dehydration.

[0010] The purpose of the present application is not limited to the above-mentioned purpose, and those skilled in the art can clearly understand other purposes not mentioned through the following description.

[0011] The drum washing machine of the present application for achieving the above-mentioned purpose comprises a box body having an internal space.

[0012] The drum washing machine comprises an outer drum, which is arranged in a casing.

[0013] The drum washing machine comprises an inner drum which is rotatably arranged in an outer drum.

[0014] The drum washing machine includes an annular housing.

[0015] A water containing cavity for containing washing water is provided between the outer bottom of the inner drum and the inner bottom of the outer drum, and the water containing cavity is communicated with the interior of the inner drum.

[0016] The annular shell can be arranged in the water containing cavity.

[0017] The annular shell can be fixedly connected to the outer bottom of the inner cylinder.

[0018] The annular shell may extend along the edge of the outer bottom of the inner cylinder, and an annular cavity is formed inside the annular shell.

[0019] The annular shell may be provided with a plurality of water leakage holes spaced apart along its circumference.

[0020] The annular cavity can be communicated with the water containing cavity through the water leakage hole.

[0021] A movable improvement is accommodated in the annular cavity.

[0022] The drum washing machine includes a tripod arranged in the water containing cavity.

[0023] The tripod may include a swivel axis.

[0024] The tripod may include at least three support arms.

[0025] The at least three support arms may be distributed at intervals along the circumference of the rotating shaft.

[0026] One end of the support arm may be fixedly connected to the rotating shaft.

[0027] One end of the support arm away from the rotating shaft can be fixedly connected to the outer bottom of the inner cylinder.

[0028] The annular shell may be sandwiched between the support arm and the outer bottom of the inner cylinder.

[0029] The outer bottom edge of the inner cylinder may extend toward the outer cylinder to form a cylinder edge.

[0030] The outer peripheral surface of the annular shell may abut against the tube edge.

[0031] One end of the support arm away from the rotating shaft can be fixedly connected to the barrel edge.

[0032] One end of the support arm away from the rotating shaft can press the annular shell tightly against the outer bottom of the inner cylinder.

[0033] The outer bottom of the inner cylinder may protrude toward the outer cylinder to form a plurality of protrusions.

[0034] The plurality of protrusions may be arranged at intervals along the circumferential direction of the outer bottom portion of the inner tube.

[0035] An area between the plurality of protrusions may be formed with a receiving groove matching the shape of the tripod, and the tripod is received in the receiving groove.

[0036] The annular shell can be clamped between the tube edge and the plurality of protrusions.

[0037] The convex portion may be provided with a plurality of water holes, and the water containing cavity may be connected with the interior of the inner cylinder through the water holes.

[0038] The support arm may include a bottom wall, side walls extending from opposite ends of the bottom wall toward a direction away from the inner cylinder, and end walls connecting the bottom wall and the side walls.

[0039] The end wall may be located at an end of the bottom wall away from the rotating shaft.

[0040] A fixing hole may be provided on the end wall.

[0041] The support arm can be fixedly connected to the cylinder edge through a fixing piece passing through the fixing hole.

[0042] An end of the bottom wall away from the rotating shaft may be formed with a step portion toward the inner bottom of the outer cylinder.

[0043] The annular shell can be tightly pressed between the step portion and the tube edge.

[0044] The annular housing may include a first shell portion.

[0045] The annular housing may include a second shell portion.

[0046] One end of the first shell portion and the second shell portion may be open, and the open ends of the first shell portion and the second shell portion are butted against each other to enclose and form the annular cavity.

[0047] The first shell portion may be connected to the outer bottom portion of the inner cylinder.

[0048] The second shell portion may face the inner bottom of the outer cylinder.

[0049] The water leakage hole may be provided on a side of the second shell portion facing the inner bottom of the outer cylinder.

[0050] The open ends of the first shell portion and the second shell portion can be fixedly connected by cladding welding to form the annular shell.

[0051] Mounting holes corresponding in position may be provided on one side of the first shell portion that is opposite to the second shell portion.

[0052] The first shell portion and the second shell portion can be fixedly connected by screws passing through the mounting holes to form the annular shell.

[0053] Details of other embodiments are included in the detailed description and drawings.

[0054] According to at least one of the embodiments of the present application, an annular shell can be provided to accommodate the improved object in the annular shell, and the annular shell is connected to the outer bottom of the inner drum. The annular shell rotates with the inner drum, so that the improved object can always be in a lower position due to its own gravity, thereby increasing the contact time between the improved object and the washing water.

[0055] According to at least one of the embodiments of the present application, by allowing the improved substance to contact with the washing water for a long time, the concentration of the improved substance dissolved in the washing water is increased, thereby enhancing the effect of the improved substance.

[0056] According to at least one of the embodiments of the present application, by fixing the annular shell to the outer bottom of the inner cylinder and placing it in the water containing cavity, the structure inside the inner cylinder is avoided from being changed, the internal structure of the inner cylinder is not affected, and the existing installation method of the inner cylinder is not affected.

[0057] According to at least one of the embodiments of the present application, the annular shell is rotated with the inner drum, and the improvement object is movably accommodated in the annular shell. During dehydration, the improvement object can be evenly distributed in the annular cavity under the action of centrifugal force, thereby reducing the vibration of the washing machine.

[0058] The effects of the present invention are not limited to the effects mentioned above, and those skilled in the art can clearly understand other effects not mentioned from the description of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 A schematic diagram of the drum structure of a drum washing machine according to some embodiments is shown;

[0060] Figure 2 A schematic back side view of an inner drum of a drum washing machine according to some embodiments is shown;

[0061] Figure 3 A schematic structural diagram of an annular housing of a drum washing machine according to some embodiments is shown;

[0062] Figure 4 Shows Figure 3 Sectional view in the AA direction;

[0063] Figure 5 Shows Figure 4 A partial enlarged view of point B in the middle;

[0064] Figure 6The structure diagram of the tripod of the drum washing machine according to some embodiments is shown as an example Figure 1 ;

[0065] Figure 7 The structure diagram of the tripod of the drum washing machine according to some embodiments is shown as an example Figure 2 ;

[0066] Figure 8 An example is shown Figure 7 A partial enlarged view of C in the middle.

[0067] Description of reference numerals:

[0068] Cylinder body 1, outer cylinder 2, inner cylinder 3, cylinder edge 31, convex portion 32, water hole 321, accommodating groove 33, annular shell 4, annular cavity 41, water leakage hole 42, first shell portion 43, second shell portion 44, improvement 45, tripod 5, rotating shaft 51, support arm 52, bottom wall 521, side wall 522, end wall 523, fixing hole 524, step portion 525. DETAILED DESCRIPTION

[0069] In order to make the purpose and implementation method of the present application clearer, the exemplary implementation method of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0070] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0071] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0072] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0073] In the related art, the improvement is placed in the lifting ribs. When the lifting ribs rotate downward with the inner drum, the improvement contacts the washing water. This results in the improvement not being able to contact the washing water when the lifting ribs rotate upward with the inner drum. The contact time between the improvement and the washing water is short, and the concentration of the improvement dissolved in the washing water is limited, resulting in poor improvement effect. To solve this problem, the present application proposes a drum washing machine.

[0074] For ease of understanding, the side of the drum washing machine facing the user for operation is the front side of the drum washing machine, and the side of the drum washing machine facing away from the user is the rear side of the drum washing machine.

[0075] See also Figure 1 to Figure 2 A drum washing machine may include a housing (not shown in the figure). The housing is the external integral structure of the drum washing machine. The housing may be a hollow structure with an internal space, in which other component structures of the drum washing machine may be arranged, such as a circuit structure, an air duct structure, a driving mechanism, and a drainage structure.

[0076] In some embodiments, the box body may be provided in a rectangular parallelepiped shape or in a cylindrical shape, but is of course not limited to the above shapes.

[0077] In some embodiments, a clothing loading port may be opened on the housing, and the user may put clothing into the drum washing machine for washing through the clothing loading port.

[0078] In some embodiments, the box body may include a front panel. The front panel is formed with the clothing loading port, which can be selectively opened or closed, and is convenient for loading the laundry into it when opened, and convenient for taking out the washed laundry when closed, so as to prevent dust and other impurities from entering the washing machine.

[0079] In some embodiments, the drum washing machine may include a drum body 1. The drum body 1 may be disposed in a cabinet and used for washing clothes.

[0080] In some embodiments, the drum 1 as a whole can be a cylindrical structure with an opening at one end and a washing chamber formed inside. The opening of the drum 1 and the clothing loading port can be arranged opposite to each other to facilitate the loading of clothing into the drum 1 through the clothing loading port.

[0081] In some embodiments, the drum body 1 may include an outer drum 2. The outer drum 2 may be disposed in the box body, and the outer drum 2, as a container for holding washing water, may be a cylindrical structure with one end open. A drain port may be provided at the bottom of the outer drum 2, through which the washing water after washing is discharged out of the box body.

[0082] In some embodiments, the drum body 1 may include an inner drum 3. The inner drum 3 is rotatably disposed in the outer drum 2, and the clothes finally enter the inner drum 3. The inner drum 3 may be a cylindrical structure with one end open. The clothes in the inner drum 3 are repeatedly raised and lowered by the rotation of the inner drum 3, so that the clothes are beaten to remove the stains in the clothes, thereby achieving the washing function.

[0083] In some embodiments, a plurality of water holes 321 may be formed on the peripheral wall of the inner drum 3 , and washing water can enter the inner drum 3 from the outer drum 2 , or enter the outer drum 2 from the inner drum 3 , through the plurality of water holes 321 .

[0084] In some embodiments, the opening of the inner drum 3 may also be formed on the front surface thereof, and the opening may be directly opposite to the clothing loading port.

[0085] In some embodiments, there may be a certain gap between the outer drum 2 and the inner drum 3, and the gap forms a cavity. The cavity can be connected to the inside of the inner drum 3 through the water hole 321. After washing is completed, the washing water can be discharged into the cavity and discharged through the drain port of the outer drum 2.

[0086] In some embodiments, a water containing cavity for containing washing water may be provided between the inner bottom of the outer tub 2 and the outer bottom of the inner tub 3. The water containing cavity is a part of the cavity, which is communicated with the interior of the inner tub 3.

[0087] In some embodiments, the outer bottom of the inner cylinder 3 and the inner bottom of the outer cylinder 2 may be located at the rear ends of the inner cylinder 3 and the outer cylinder 2 , which are opposite to the open ends of the inner cylinder 3 and the outer cylinder 2 .

[0088] In some embodiments, the outer bottom edge of the inner cylinder 3 may extend toward the outer cylinder 2 to form a cylinder edge 31. The cylinder edge 31 may protrude from the outer bottom of the inner cylinder 3, so as to form a water-containing cavity together with the outer bottom of the inner cylinder 3 and the interior of the outer cylinder 2.

[0089] In some embodiments, the inner cylinder 3 may be connected to a rotary motor, and the rotary motor may be used to drive the inner cylinder 3 to rotate, wherein the rotary motor may be disposed at the rear of the outer cylinder 2 .

[0090] Continue to see Figures 3 to 5 In some embodiments, the drum washing machine may include an annular shell 4. The annular shell 4 may be annular as a whole, and the annular shell 4 may extend along the edge of the outer bottom of the inner drum 3 and may match the shape of the inner drum 3.

[0091] In some embodiments, the annular shell 4 can be disposed in the water containing cavity. The annular shell 4 is fixedly connected to the outer bottom of the inner cylinder 3 and can rotate with the rotation of the inner cylinder 3.

[0092] In some embodiments, an annular cavity 41 is formed inside the annular shell 4 , and the annular cavity 41 may also extend along the outer bottom edge of the inner cylinder 3 .

[0093] In some embodiments, the annular housing 4 may be provided with a plurality of water leakage holes 42 spaced apart along its circumference, and the annular cavity 41 may be connected to the water containing cavity through the water leakage holes 42. Washing water in the inner drum 3 may enter the annular cavity 41 through the water leakage holes 42.

[0094] In some embodiments, the annular cavity 41 may contain a movable improvement 45. The improvement 45 may include an antiscalant to improve the quality of the washing water. The improvement 45 may also include a bactericide to sterilize the washing water.

[0095] In some embodiments, the antiscalant or bactericide may be in granular form and placed directly in the annular cavity 41 .

[0096] In some embodiments, the antiscalant or bactericide may also be placed in a hollow container and then placed in the annular cavity 41. The hollow container is permeable to water and blocks the improvement material 45 from passing through the container.

[0097] In some embodiments, after the washing water enters the annular cavity 41, it reacts with the improvement material 45, so as to facilitate the chelation reaction between the scale inhibitor and the washing water, thereby preventing the calcium and magnesium ions in the washing water from being converted into insoluble substances during the subsequent heating process, thereby preventing the formation of scale and improving the anti-scaling performance of the drum washing machine, or facilitating the bactericide to dissolve in water, releasing bactericidal factors to kill bacteria, and improving the function of the drum washing machine.

[0098] In some embodiments, during the washing process, as the inner drum 3 rotates, the annular shell 4 will rotate accordingly. When the inner drum 3 rotates at a low speed, the improvement 45 is always located at the bottom of the annular shell 4 and in contact with the washing water due to its gravity, thereby increasing the contact time with the washing water. During dehydration, under the action of the centrifugal force of the inner drum 3, the improvement 45 can be evenly distributed around the annular cavity 41 to reduce vibration.

[0099] In some embodiments, the annular shell 4 can be disposed in the water containing cavity without affecting the internal and external structures of the inner cylinder 3 or the assembly method thereof with the outer cylinder 2, thereby avoiding affecting the appearance of the inner cylinder 3.

[0100] In some embodiments, the drum washing machine may include a tripod 5 disposed in the water containing chamber. The inner drum 3 may be connected to a driving mechanism via the tripod 5 to drive the inner drum 3 to rotate, thereby washing clothes.

[0101] In some embodiments, the tripod 5 may include a rotating shaft 51. The rotating shaft 51 may be located at the center of the tripod 5, that is, at the center of the outer bottom of the inner cylinder 3. The rotating shaft 51 may pass through the bottom of the outer cylinder 2 and be connected to the driving mechanism. As for how the driving mechanism drives the rotating shaft 51 and the inner cylinder 3 to rotate, it belongs to the prior art and will not be described in detail here.

[0102] Continue to see Figures 6 to 8In some embodiments, the tripod 5 may include a support arm 52. At least three support arms 52 are provided. At least three support arms 52 are distributed at intervals along the circumference of the rotating shaft 51, one end of the support arm 52 is fixedly connected to the rotating shaft 51, and one end of the support arm 52 away from the rotating shaft 51 is fixedly connected to the outer bottom of the inner tube 3, so that the tripod 5 and the inner tube 3 are fixedly connected.

[0103] In some embodiments, providing a plurality of support arms 52 can improve the connection strength between the tripod 5 and the inner tube 3. The number of the support arms 52 can be three, four or more. In the present embodiment, there are three support arms 52. The three support arms 52 are evenly distributed along the circumference of the rotating shaft 51, and the angle between adjacent support arms 52 is 120°.

[0104] In some embodiments, each support arm 52 can be manufactured independently, and after manufacturing, it is assembled and fixed with the rotating shaft 51 to form a complete tripod 5. During manufacturing, the support arm 52 can be obtained by using a cold-rolled steel plate as a base material and forming by sheet metal stamping and stretching.

[0105] In some embodiments, the support arm 52 can be fixed to the rotating shaft 51 by welding. By welding, the connection problem during the assembly of the split structure can be solved, the connection strength can be increased, and the process is relatively simple.

[0106] In some embodiments, the support arm 52 may include a bottom wall 521, which extends in the radial direction of the rotating shaft 51. The support arm 52 may include a side wall 522, which is formed by extending from opposite ends of the bottom wall 521 in a direction away from the inner cylinder 3, and plays a role in strengthening the structural strength of the support arm 52. The support arm 52 may include an end wall 523, which is located at one end of the bottom wall 521 away from the rotating shaft 51, and the end wall 523 connects the bottom wall 521 and the two side walls 522, and plays a connecting role.

[0107] In some embodiments, a fixing hole 524 may be provided on the end wall 523. The support arm 52 may be fixedly connected to the tube edge 31 through a fixing piece passing through the fixing hole 524, so that the support arm 52 and the tube edge 31 of the inner tube 3 are fixedly connected.

[0108] In some embodiments, a mounting hole may be provided on the edge 31 of the inner cylinder 3 at a position corresponding to the support arm 52, and the specific position of the mounting hole corresponds to the fixing hole 524, so that when the support arm 52 and the inner cylinder 3 are fixedly connected, the fixing part passes through the mounting hole and the fixing hole 524 to firmly connect the support arm 52 and the inner cylinder 3 together.

[0109] In some embodiments, the fixing member can be a screw fastener, and the fixing hole 524 can be a screw hole. The head of the screw fastener is located outside the mounting hole, and the rod thereof extends into the mounting hole and the fixing hole 524, thereby fixing and connecting the support arm 52 and the inner cylinder 3.

[0110] In some embodiments, a step portion 525 may be formed at one end of the bottom wall 521 away from the rotating shaft 51 toward the inner bottom of the outer cylinder 2. The step portion 525 may match the annular shell 4, so that when the annular shell 4 is fixed, the annular shell 4 is pressed tightly between the step portion 525 and the cylinder edge 31, and the annular shell 4 is clamped by the step portion 525, the cylinder edge 31 and the outer bottom of the inner cylinder 3, so as to prevent the annular shell 4 from shaking when the inner cylinder 3 rotates, causing customer complaints.

[0111] In some embodiments, the outer bottom of the inner tube 3 may protrude toward the outer tube 2 to form a plurality of protrusions 32. The plurality of protrusions 32 may be arranged at intervals along the circumference of the outer bottom of the inner tube 3. The shape of the protrusions 32 may be elliptical.

[0112] In some embodiments, a region between the plurality of protrusions 32 may be formed with a receiving groove 33 that matches the shape of the tripod 5 , and the tripod 5 is received in the receiving groove 33 , which may play a positioning role in the installation of the tripod 5 .

[0113] In some embodiments, the portion of the bottom of the inner drum 3 corresponding to the accommodating groove 33 can protrude toward the outside of the inner drum 3 relative to the convex portion 32 to form a friction portion. When washing clothes, the friction portion generates a friction effect to wash away dirt.

[0114] In some embodiments, a water hole 321 may be provided on the convex portion 32 , and the washing water in the inner drum 3 directly enters the water containing cavity through the water hole 321 on the convex portion 32 .

[0115] In some embodiments, the number of protrusions 32 corresponds to the number of support arms 52. For example, if three support arms 52 are provided, three protrusions 32 are provided, and the three protrusions 32 can be evenly spaced along the circumferential direction of the bottom of the inner tube 3. There can be a certain gap between the protrusion 32 and the tube edge 31 to facilitate molding.

[0116] In some embodiments, the annular shell 4 can be clamped between the support arm 52 and the outer bottom of the inner tube 3, so that the annular shell 4 is limited by the tripod 5, and no other limiting structure is required.

[0117] In some embodiments, the outer peripheral surface of the annular shell 4 can abut against the tube edge 31 of the inner drum 3, so that when the inner drum 3 rotates, a part of the annular shell 4 is always located at the lower side of the inner drum 3, and the improved material 45 in the annular cavity 41 is always in contact with the washing water under the action of gravity.

[0118] In some embodiments, one end of the support arm 52 away from the rotating shaft 51 can be fixedly connected to the tube edge 31 , thereby being fixedly connected to the inner tube 3 to avoid being fixedly connected to the bottom surface of the inner tube 3 .

[0119] In some embodiments, the end of the support arm 52 away from the rotating shaft 51 can press the annular shell 4 against the outer bottom of the inner tube 3, and the tripod 5 can be reasonably used to press and limit the annular shell 4, avoiding the need to open other structures on the inner tube 3 to fix the annular shell 4.

[0120] In some embodiments, the annular shell 4 can be clamped between the tube edge 31 and a plurality of protrusions 32 , and the protrusions 32 are used to limit and support the inner circumference of the annular shell 4 , so as to facilitate the installation of the annular shell 4 .

[0121] In some embodiments, the annular shell 4 may also be directly fixedly connected to the bottom surface of the inner cylinder 3 or the cylinder edge 31 by screws.

[0122] In some embodiments, the annular shell 4 may include a first shell portion 43 , one end of which is open to form a semi-enclosed annular structure.

[0123] In some embodiments, the annular housing 4 may include a second shell portion 44 , one end of which is open to form a semi-enclosed annular structure.

[0124] In some embodiments, when the annular shell 4 is assembled, the open end of the first shell portion 43 and the open end of the second shell portion 44 are butted together to enclose an annular cavity 41. By such a configuration, the first shell portion 43 and the second shell portion 44 can be formed separately, making it convenient to place the improvement 45 into the annular cavity 41 before closing, thereby simplifying the molding process of the annular shell 4.

[0125] In some embodiments, the first shell portion 43 may be connected to the outer bottom of the inner tube 3 , and the second shell portion 44 may face the inner bottom of the outer tube 2 .

[0126] In some embodiments, the leakage hole 42 can be opened on the side of the second shell portion 44 facing the inner bottom of the outer drum 2, so that the leakage hole 42 is in direct contact with the washing water in the water containing cavity without obstruction, thereby facilitating the convection flow of the washing water through the leakage hole 42.

[0127] In some embodiments, the open ends of the first shell 43 and the second shell 44 can be fixedly connected by cladding welding to form the annular shell 4. By cladding welding, the first shell 43 and the second shell 44 are stably connected and the joint has good sealing performance.

[0128] In some embodiments, mounting holes with corresponding positions may be provided on one side opposite to the first shell portion 43 and the second shell portion 44 , and the mounting holes may be in the form of screw holes.

[0129] In some embodiments, the first shell 43 and the second shell 44 can be fixedly connected by screws through mounting holes to form an annular housing 4. The first shell 43 and the second shell 44 are easily installed and disassembled by screws, and the improvement 45 can be conveniently placed.

[0130] In some embodiments, a plurality of mounting holes may be provided at intervals along the circumference of the first shell portion 43 and the second shell portion 44 . Providing a plurality of mounting holes may improve connection stability.

[0131] In some embodiments, multiple leakage holes 42 can be radially spaced along the annular shell 4 to form multiple groups of leakage holes. Each group of leakage holes can include multiple leakage holes 42 evenly spaced along the circumferential direction of the annular shell 4, so that the leakage holes 42 are evenly distributed around the second shell portion 44 of the annular shell 4, making it easier for washing water to enter the annular cavity 41 from the water containing cavity, and the improvement 45 is in contact with the washing water for a longer time.

[0132] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0133] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In the description of this specification, the description of the reference terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, in the absence of contradiction, technicians in this field can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples.

[0134] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A drum washing machine, characterized in that: include: Box; An outer cylinder is arranged in the box body; An inner drum is rotatably disposed in the outer drum, a water containing cavity for containing washing water is provided between the outer bottom of the inner drum and the inner bottom of the outer drum, and the water containing cavity is communicated with the interior of the inner drum; An annular shell is arranged in the water containing cavity and fixedly connected to the outer bottom of the inner cylinder. The annular shell extends along the edge of the outer bottom of the inner cylinder. An annular cavity is formed inside the annular shell. The annular shell is provided with a plurality of leakage holes spaced apart along its circumference. The annular cavity is connected to the water containing cavity through the leakage holes. A movable improvement is accommodated in the annular cavity.

2. The drum washing machine according to claim 1, characterized in that: It also includes a tripod arranged in the water containing chamber, the tripod includes a rotating shaft and at least three support arms, the at least three support arms are distributed at intervals along the circumference of the rotating shaft, one end of the support arm is fixedly connected to the rotating shaft, one end of the support arm away from the rotating shaft is fixedly connected to the outer bottom of the inner tube, and the annular shell is clamped between the support arm and the outer bottom of the inner tube.

3. The drum washing machine according to claim 2, characterized in that: The outer bottom edge of the inner cylinder extends toward the outer cylinder to form a cylinder edge, the outer peripheral surface of the annular shell abuts against the cylinder edge, and the end of the support arm away from the rotating shaft is fixedly connected to the cylinder edge and presses the annular shell against the outer bottom of the inner cylinder.

4. The drum washing machine according to claim 3, characterized in that: The outer bottom of the inner tube protrudes toward the outer tube to form a plurality of convex portions, and the plurality of convex portions are arranged at intervals along the circumference of the outer bottom of the inner tube. An area between the plurality of convex portions is formed with a receiving groove matching the shape of the tripod, and the tripod is received in the receiving groove, and the annular shell is clamped between the tube edge and the plurality of convex portions.

5. The drum washing machine according to claim 4, characterized in that: The convex portion is provided with a plurality of water holes, and the water containing cavity is communicated with the interior of the inner cylinder through the water holes.

6. The drum washing machine according to claim 3, characterized in that: The support arm includes a bottom wall, side walls extending from opposite ends of the bottom wall in a direction away from the inner cylinder, and an end wall connecting the bottom wall and the two side walls. The end wall is located at the end of the bottom wall away from the rotating shaft. A fixing hole is provided on the end wall. The support arm is fixedly connected to the edge of the cylinder through a fixing piece passing through the fixing hole.

7. The drum washing machine according to claim 6, characterized in that: A step portion is formed on one end of the bottom wall away from the rotating shaft toward the inner bottom of the outer cylinder, and the annular shell is tightly pressed between the step portion and the cylinder edge.

8. The drum washing machine according to claim 2, characterized in that: The annular shell includes a first shell portion and a second shell portion, one end of the first shell portion and the second shell portion is open, the open ends of the first shell portion and the second shell portion are butted together to enclose the annular cavity, the first shell portion is connected to the outer bottom of the inner cylinder, the second shell portion faces the inner bottom of the outer cylinder, and the water leakage hole is opened on the side of the second shell portion facing the inner bottom of the outer cylinder.

9. The drum washing machine according to claim 8, characterized in that: The open ends of the first shell portion and the second shell portion are fixedly connected by cladding welding to form the annular shell.

10. The drum washing machine according to claim 8, characterized in that: Mounting holes corresponding to the positions are arranged on one side of the first shell part and the second shell part opposite to each other, and the first shell part and the second shell part are fixedly connected by screws passing through the mounting holes to form the annular shell.

Images