Drum structure and drum washing machine

Abstract

The drum structure comprises a water containing drum and a sealing ring, the water containing drum is provided with a drum opening and a drum cover for opening and closing the drum opening, the sealing ring comprises a sealing body arranged on the inner side face of the drum cover and a sealing convex part arranged on the periphery of the sealing body, and supporting convex ribs are arranged on the inner side face of the drum cover. The sealing convex part is extruded between the supporting convex rib and the end part of the barrel opening along the axial direction of the water containing barrel; the supporting convex ribs are arranged on the inner side face of the barrel cover, so that the sealing ring can be extruded by the end of the barrel opening towards the outer portion of the water containing barrel and can also be extruded by the supporting convex ribs towards the inner portion of the water containing barrel, the problem that the sealing ring collapses due to the fact that the sealing ring is only extruded by the end of the barrel opening in one direction for a long time is solved, and the sealing performance of the sealing ring can be improved.

Description

Technical Field

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

[0002] The existing drum washing machine includes a casing, an outer drum arranged on the casing, and an inner drum rotatably arranged in the outer drum. The casing has a front panel, and a door for closing the outer drum opening is arranged on the front panel. A sealing ring, called a door seal, is arranged between the outer drum opening and the front panel. The sealing ring is sealed with the door through the sealing ring lip to prevent the washing water in the outer drum from leaking out.

[0003] When the inner drum is a non-porous inner drum, an inner drum door is provided at the inner drum opening, so that the inner drum forms a sealed container after the inner drum door is correspondingly buckled to close the inner drum opening, so that the inner drum can be in a sealed state during the washing process, so that the washing water only exists in the inner drum, and a sealing ring is provided between the inner drum door and the inner drum opening to prevent the washing water in the inner drum from leaking out;

[0004] The above-mentioned sealing ring includes a sealing body arranged on the inner side surface of the inner cylinder door or the inner side surface of the machine door and a sealing convex portion arranged on the outer periphery of the sealing body. The end of the inner cylinder mouth squeezes the sealing ring toward the outside of the inner cylinder along the axial direction of the inner cylinder, or the end of the outer cylinder mouth squeezes the sealing ring toward the outside of the outer cylinder along the axial direction of the outer cylinder. When the sealing ring is only subjected to unidirectional squeezing by the end of the inner cylinder mouth or the end of the outer cylinder mouth for a long time, the sealing ring will collapse and cannot return to its original state, thereby reducing the sealing performance of the sealing ring.

[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 structure and a drum washing machine. By arranging supporting convex ribs on the inner side of the drum cover, the sealing ring can be squeezed by the end of the drum mouth toward the outside of the water holding drum, and can also be squeezed by the supporting convex ribs toward the inside of the water holding drum, thereby preventing the sealing ring from collapsing due to being squeezed in one direction by the end of the drum mouth for a long time, thereby achieving the purpose of improving the sealing performance of the sealing ring.

[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 cylinder structure, comprising a water cylinder and a sealing ring, wherein the water cylinder has a cylinder mouth and a cylinder cover for opening and closing the cylinder mouth, the sealing ring comprises a sealing body arranged on the inner side surface of the cylinder cover and a sealing convex portion arranged on the outer periphery of the sealing body, the inner side surface of the cylinder cover is provided with a supporting convex rib, and the sealing convex portion is squeezed between the supporting convex rib and the end of the cylinder mouth along the axial direction of the water cylinder.

[0009] Furthermore, the supporting rib is cylindrical and extends axially along the water cylinder, one end of the supporting rib is an open end, and the other end is a closed end closed by the cylinder cover, and the sealing convex portion has a sealing section extending radially along the water cylinder, the end face of the open end of the supporting rib abuts against the outer side face of the sealing section, and the end of the cylinder mouth abuts against the inner side face of the sealing section.

[0010] Furthermore, a support rib protruding toward the sealing section is provided at the end of the barrel mouth. The support rib is cylindrical and coaxially arranged with the barrel mouth. Both ends of the support rib are open ends respectively. The first open end of the support rib is connected to the barrel mouth, and the end face of the second open end of the support rib is against the inner side face of the sealing section.

[0011] Furthermore, the support ribs gradually narrow from the inside to the outside of the water tank, the radial dimension of the support ribs is larger than the maximum radial dimension of the support ribs, and the abutment between the sealing section and the end face of the support ribs is located at the periphery of the abutment between the sealing section and the end face of the support ribs.

[0012] Furthermore, the end portion of the outer peripheral side of the sealing section is bent toward the inner side surface of the cylinder cover to form an outer peripheral sealing section, and the outer peripheral sealing section gradually expands from the inside of the water storage cylinder to the outside, and a corner portion is formed between the inner peripheral surface of the outer peripheral sealing section and the outer side surface of the sealing section, and the open end of the supporting rib is inserted into the corner portion, and the outer peripheral surface of the supporting rib abuts against the inner peripheral surface of the outer peripheral sealing section in the corner portion.

[0013] Furthermore, the end of the inner peripheral side of the sealing section is bent toward the inner side of the cylinder cover to form an inner peripheral sealing section, and the inner peripheral sealing section includes a first part connected to the outer peripheral sealing section and a second part connected to the sealing body, the first part gradually expands from the inside to the outside of the water cylinder, and the second part extends along the radial direction of the water cylinder.

[0014] Furthermore, the barrel cover includes an inner frame and a groove-shaped blocking member, the bottom end of the blocking member groove extends into the barrel mouth, the groove end of the blocking member is connected to the inner frame, the sealing body is sleeved on the outer peripheral groove wall of the blocking member, and an insertion groove is opened on the outer periphery of the sealing body, and the inner frame supporting the inner periphery of the convex rib is inserted into the insertion groove.

[0015] Furthermore, the outer periphery of the sealing body is provided with an inner sealing convex portion and an outer sealing convex portion respectively extending in the radial direction of the water container, the sealing convex portion is arranged on the inner side of the inner sealing convex portion, and the inner sealing convex portion, the outer sealing convex portion and the sealing body form a plug-in groove;

[0016] Preferably, an auxiliary sealing protrusion is provided on the inner periphery of the sealing body, and a free end of the auxiliary sealing protrusion is pressed and abutted against the outer peripheral groove wall of the blocking member.

[0017] Furthermore, the inner frame is annular, the blocking member is an observation window, the end of the observation window slot is bent along the radial direction of the water storage cylinder to form a flange, the observation window passes through the inner frame through the inner frame opening, the bottom end of the observation window slot and the flange are respectively located on the inner side and the outer side of the inner frame, the inner frame has an inner frame straight wall extending along the radial direction of the water storage cylinder and the inner periphery forming the inner frame opening, the supporting convex rib is arranged on the inner frame straight wall and is coaxial with the inner frame opening, the inner periphery of the inner frame straight wall is inserted into the plug-in groove, and the outer sealing convex part is squeezed between the inner frame straight wall and the flange;

[0018] Preferably, the outer peripheral sealing section, the sealing section, the inner peripheral sealing section and the sealing body form an extrusion deformation cavity, and a gap is provided between the outer side surface of the outer peripheral sealing section and the inner side surface of the inner frame straight wall to allow the extrusion deformation cavity to communicate with the outside atmosphere.

[0019] The present invention also provides a drum washing machine, comprising the drum structure provided by the above technical solution.

[0020] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0021] By providing supporting convex ribs on the inner side of the cylinder cover, the sealing ring can be squeezed by the end of the cylinder mouth toward the outside of the water cylinder, and can also be squeezed by the supporting convex ribs toward the inside of the water cylinder, thereby preventing the sealing ring from collapsing due to unidirectional squeezing by the end of the cylinder mouth for a long time, thereby improving the sealing performance of the sealing ring.

[0022] 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

[0023] 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:

[0024] Figure 1 is a structural schematic diagram of a cylinder structure provided by an embodiment of the present invention;

[0025] Figure 2 yes Figure 1 AA cross-section;

[0026] Figure 3 yes Figure 2 Enlarged view at B;

[0027] Figure 4 It is an exploded view of the cylinder structure provided by an embodiment of the present invention.

[0028] Icons: 1-cylinder cover; 11-inner frame; 111-inner frame straight wall; 12-support rib; 2-cylinder mouth; 21-support rib; 3-sealing ring; 31-sealing body; 32-sealing convex part; 321-sealing section; 322-peripheral sealing section; 323-inner peripheral sealing section; 3231-first part; 3232-second part; 33-corner part; 34-plug-in groove; 35-inner sealing convex part; 36-outer sealing convex part; 37-auxiliary sealing convex part; 4-blocking member; 41-observation window; 42-flange; 5-extrusion deformation cavity; 51-gap.

[0029] 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

[0030] 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.

[0031] 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.

[0032] 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.

[0033] like Figure 1-4 As shown, the present invention provides a cylinder structure, including a water cylinder and a sealing ring 3, the water cylinder having a cylinder mouth 2 and a cylinder cover 1 for opening and closing the cylinder mouth 2, the sealing ring 3 including a sealing body 31 arranged on the inner side surface of the cylinder cover 1 and a sealing protrusion 32 arranged on the outer periphery of the sealing body 31, the inner side surface of the cylinder cover 1 is provided with a supporting rib 12, and the sealing protrusion 32 is squeezed between the supporting rib 12 and the end of the cylinder mouth 2 along the axial direction of the water cylinder.

[0034] In the embodiment of the present invention, by providing a supporting rib 12 on the inner side of the cylinder cover 1, the sealing ring 3 can be squeezed by the end of the cylinder mouth 2 toward the outside of the water cylinder, and can also be squeezed by the supporting rib 12 toward the inside of the water cylinder, thereby preventing the sealing ring 3 from collapsing due to being squeezed in one direction by the end of the cylinder mouth 2 for a long time, and improving the sealing performance of the sealing ring 3.

[0035] In addition, by adding support convex ribs 12 on the inner side of the cylinder cover 1, the support convex ribs 12 squeeze the sealing convex portion 32, which can increase the sealing performance between the sealing ring 3 and the cylinder cover 1, and further increase the sealing performance between the cylinder cover 1 and the cylinder mouth 2. It should be noted that the sealing convex portion 32 is arranged in a circle on the sealing body 31, the sealing ring 3 and the sealing convex portion 32 are arranged coaxially, the water cylinder has a cylinder mouth 2 and a cylinder cover 1 for opening and closing the cylinder mouth 2, the cylinder mouth 2 and the cylinder cover 1 are arranged coaxially, and the support convex ribs 12 on the inner side of the cylinder cover 1 can be square with a solid interior, cylindrical with a hollow interior, etc.

[0036] The drum structure is used in a drum washing machine, which includes an outer drum and an inner drum, the inner drum is a water drum or the outer drum is a water drum, and the drum cover 1 can be an inner drum door for opening and closing the inner drum opening or a washing machine door for opening and closing the outer drum opening.

[0037] The inner side surface of each component described in the present application is the surface of each component facing the interior of the inner tube, and the outer side surface of each component is the surface of each component facing away from the interior of the inner tube.

[0038] Specifically, the barrel cover 1 includes an inner frame 11 and an outer frame which are buckled with each other. The inner side surface of the barrel cover 1 is provided with the inner frame 11 , and the supporting ribs 12 are provided on the inner side surface of the inner frame 11 .

[0039] like Figure 3 and Figure 4 As shown, in the embodiment of the present invention, the supporting rib 12 is cylindrical and extends along the axial direction of the water storage cylinder. One end of the supporting rib 12 is an open end, and the other end is a closed end closed by the cylinder cover 1. The sealing protrusion 32 has a sealing section 321 extending along the radial direction of the water storage cylinder. The end face of the open end of the supporting rib 12 abuts against the outer side face of the sealing section 321, and the end of the cylinder mouth 2 abuts against the inner side face of the sealing section 321.

[0040] In the embodiment of the present invention, the interior of the supporting rib 12 is hollow, and the end surface of the open end of the supporting rib 12 is coaxially arranged with the supporting rib 12;

[0041] The supporting convex rib 12 abuts against the outer side surface of the sealing section 321, and the end of the barrel mouth 2 abuts against the inner side surface of the sealing section 321, so that a sealing area is formed between the outer side surface of the sealing section 321 and the supporting convex rib 12, and a sealing area is formed between the inner side surface of the sealing section 321 and the end of the barrel mouth 2, thereby increasing the sealing area of ​​the sealing ring 3 between the barrel cover 1 and the barrel mouth 2;

[0042] The support convex rib 12 uses its end surface to abut against the outer side surface of the sealing section 321, which can improve the extrusion strength of the support convex rib 12 on the sealing section 321 and improve the sealing performance;

[0043] Furthermore, a support rib 21 protruding toward the sealing section 321 is provided at the end of the barrel mouth 2. The support rib 21 is cylindrical and coaxially arranged with the barrel mouth. Both ends of the support rib 21 are open ends respectively. The first open end of the support rib 21 is connected to the barrel mouth, and the end face of the second open end of the support rib 21 is against the inner side face of the sealing section 321.

[0044] Specifically, an annular front flange is provided at the front end of the water storage cylinder, and the inner circumference of the annular front flange forms a cylinder mouth 2, and the support rib 21 is coaxially arranged with the cylinder mouth 2; the end face of the support rib 21 is coaxially arranged with the support rib 21, and the support rib 21 uses its own end face to abut against the inner side surface of the sealing section 321, thereby improving the extrusion strength of the support rib 21 on the sealing section 321 and improving the sealing performance; the support rib 21 and the supporting convex rib 12 squeeze the sealing ring 3 in opposite directions to prevent the sealing ring 3 from collapsing due to unidirectional extrusion.

[0045] Furthermore, the support rib 21 gradually narrows from the inside to the outside of the water tank, the radial dimension of the support rib 12 is larger than the maximum radial dimension of the support rib 21, and the abutment between the sealing section 321 and the end face of the support rib 12 is located at the periphery of the abutment between the sealing section 321 and the end face of the support rib 21.

[0046] The support rib 21 gradually narrows from the inside to the outside of the water storage cylinder, that is, the inner wall of the support rib 21 gradually narrows from the inside to the outside of the water storage cylinder, so that the residual water can easily slide down from the inner wall of the support rib 21;

[0047] The abutment between the sealing section 321 and the end face of the supporting rib 12 is located at the periphery of the abutment between the sealing section 321 and the end face of the supporting rib 21, so that the position where the supporting rib 12 squeezes the sealing section 321 is different from the position where the supporting rib 21 squeezes the sealing section 321, so that the sealing section 321 can produce a larger deformation after squeezing, thereby increasing the sealing performance between the sealing section 321 and the supporting rib 12 and the supporting rib 21.

[0048] like Figure 3 As shown, further, the end of the outer peripheral side of the sealing section 321 is bent toward the inner side of the cylinder cover 1 to form an outer peripheral sealing section 322, and the outer peripheral sealing section 322 gradually expands from the inside of the water storage cylinder to the outside, and a corner portion 33 is formed between the inner peripheral surface of the outer peripheral sealing section 322 and the outer side surface of the sealing section 321, and the open end of the supporting convex rib 12 is inserted into the corner portion 33, and the outer peripheral surface of the supporting convex rib 12 abuts against the inner peripheral surface of the outer peripheral sealing section 322 in the corner portion 33;

[0049] The above-mentioned arrangement enables the supporting rib 12 to support the peripheral sealing section 322, increases the assembly strength between the sealing section 321 and the supporting rib 12, thereby enhancing the stability of the sealing section 321, and enables the inner circumference of the peripheral sealing section 322 and the outer circumference of the supporting rib 12 to form a sealing area at the corner.

[0050] The inner wall of the corner portion 33 is an arc surface, and the arc surface protrudes outward from the corner portion 33. The open end of the supporting rib 12 is specifically a transition portion formed by the end face of the open end of the supporting rib 12 and the outer peripheral surface of the open end of the supporting rib 12. The transition portion is embedded in the corner portion 33 and is arc-shaped.

[0051] Furthermore, the end of the inner peripheral side of the sealing section 321 is bent toward the inner side of the cylinder cover 1 to form an inner peripheral sealing section 323, and the inner peripheral sealing section 323 includes a first part 3231 connected to the outer peripheral sealing section 322 and a second part 3232 connected to the sealing body 31, the first part 3231 gradually expands from the inside to the outside of the water cylinder, and the second part 3232 extends along the radial direction of the water cylinder.

[0052] A first transition portion is formed between the first part 3231 and the sealing section 321, and the first transition portion is in an arc shape and protrudes into the water holding cylinder. A second transition portion is formed between the first part 3231 and the second part 3232, and the second transition portion is in an arc shape and protrudes out of the water holding cylinder. The arrangement of the first part 3231, the second part 3232, the first transition portion and the second transition portion can avoid the stress concentration at the first transition portion and the second transition portion when the sealing section 321 is squeezed, thereby avoiding the situation where the sealing ring 3 is prone to breakage.

[0053] like Figure 2-4 As shown, in the embodiment of the present invention, the barrel cover 1 includes an inner frame 11 and a groove-shaped blocking member 4, the bottom end of the blocking member 4 extends into the barrel mouth 2, the groove end of the blocking member 4 is connected to the inner frame 11, the sealing body 31 is sleeved on the outer peripheral groove wall of the blocking member 4, and an insertion groove 34 is opened on the outer periphery of the sealing body 31, and the inner frame 11 supporting the inner periphery of the convex rib 12 is inserted into the insertion groove 34.

[0054] In the embodiment of the present invention, the blocking member 4 is embedded in the barrel opening 2 when the barrel cover 1 is closed, and can prevent water from splashing outward through the barrel opening 2 and block the clothes, so that the clothes are always in the barrel, especially when the barrel cover 1 is an inner barrel cover and the barrel opening 2 is an inner barrel opening;

[0055] By sleeve-arranging the sealing body 31 on the outer peripheral groove wall of the blocking member 4, the inner frame 11 supporting the inner periphery of the convex rib 12 is inserted into the plug-in groove 34 on the outer periphery of the sealing body 31, the assembly strength between the sealing ring 3, the blocking member 4 and the inner frame 11 is enhanced, and the stability of the sealing ring 3 can be increased;

[0056] Specifically, the outer periphery of the sealing body 31 is provided with an inner sealing protrusion 35 and an outer sealing protrusion 36 respectively extending along the radial direction of the water container, the sealing protrusion 32 is arranged on the inner side of the inner sealing protrusion 35, and the inner sealing protrusion 35, the outer sealing protrusion 36 and the sealing body 31 form a plug-in groove 34;

[0057] The inner sealing protrusion 35 is closer to the inside of the water storage cylinder than the outer sealing protrusion 36. The inner sealing protrusion 35 and the outer sealing protrusion 36 are arranged in a circle on the sealing body 31. More specifically, the outer side surface of the inner sealing protrusion 35, the inner side surface of the outer sealing protrusion 36 and the outer peripheral surface of the sealing body 31 form a plug-in groove 34 with an opening toward the outer peripheral side of the outer cylinder.

[0058] Furthermore, the inner frame 11 is annular, the blocking member 4 is an observation window 41, the notch end of the observation window 41 is bent along the radial direction of the water storage cylinder to form a flange 42, the observation window 41 passes through the inner frame 11 through the opening of the inner frame 11, the bottom end of the groove of the observation window 41 and the flange 42 are respectively located on the inner and outer sides of the inner frame 11, the inner frame 11 has an inner frame straight wall 111 extending along the radial direction of the water storage cylinder and the inner periphery forming the opening of the inner frame 11, the supporting rib 12 is arranged on the inner frame straight wall 111 and is coaxially arranged with the opening of the inner frame 11, the inner periphery of the inner frame straight wall 111 is inserted into the plug-in groove 34, and the outer sealing protrusion 36 is squeezed between the inner frame straight wall 111 and the flange 42.

[0059] The inner frame 11 is annular, and an inner frame 11 opening is provided on the inner frame 11 and penetrates the inner frame 11; the blocking member 4 can not only block water and clothes, but also serve as an observation window 41, which is made of transparent materials such as glass, and is used to check the washing status of clothes inside the water tank through the observation window 41;

[0060] The observation window 41 passes through the inner frame 11 from the outer side to the inner side through the opening of the inner frame 11, so that the bottom end of the groove of the observation window 41 and the flange 42 are respectively located on the inner side and the outer side of the inner frame 11, so that the bottom end of the groove of the observation window 41 can extend into the barrel mouth 2, and the flange 42 can extend to the outer periphery of the opening of the inner frame 11, so that the flange 42 can cover the gap between the observation window 41 and the opening of the inner frame 11 to prevent water from flowing out of the gap;

[0061] The observation window 41 is coaxially arranged with the opening of the inner frame 11, and the flange 42 is arranged in a circle on the observation window 41. In order to increase the sealing between the observation window 41 and the inner frame 11, the outer sealing protrusion 36 is squeezed between the inner frame straight wall 111 and the flange 42. More specifically, the outer sealing protrusion 36 is squeezed between the outer side surface of the inner frame straight wall 111 and the inner side surface of the flange 42 along the axial direction of the water tank. The inner frame straight wall 111 and the flange 42 cooperate to squeeze the outer sealing protrusion 36, which will increase the stability of the outer sealing protrusion 36.

[0062] Specifically, the observation window 41 narrows from the outside to the inside of the water storage barrel, which can prevent clothes from being hung on the observation window 41 and allow the clothes to fall into the barrel along the narrowing direction of the outer peripheral groove wall of the observation window 41. Therefore, in order to adapt to the outer peripheral groove wall of the observation window 41, the sealing body 31 is also narrowed from the outside to the inside of the water storage barrel.

[0063] An auxiliary sealing protrusion 37 is provided on the inner periphery of the sealing body 31 , and a free end of the auxiliary sealing protrusion 37 is pressed against the outer peripheral groove wall of the blocking member.

[0064] Furthermore, a gap 51 is provided between the outer end surface of the outer peripheral sealing section 322 and the inner side surface of the inner frame straight wall 111 .

[0065] The cylinder cover 1 is a push-open door. When the cylinder cover 1 is pushed, it has a certain travel toward the water cylinder. When the sealing ring 3 is squeezed, the gas in the squeeze deformation cavity 5 is easily discharged due to the existence of the above-mentioned gap 51, preventing the door from being pushed with a large force.

[0066] 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 cylinder structure, comprising a water cylinder and a sealing ring, wherein the water cylinder has a cylinder mouth and a cylinder cover for opening and closing the cylinder mouth, and the sealing ring comprises a sealing body arranged on the inner side of the cylinder cover and a sealing convex portion arranged on the outer periphery of the sealing body, characterized in that: The inner side surface of the cylinder cover is provided with a supporting convex rib, and the sealing convex part is pressed between the supporting convex rib and the end of the cylinder mouth along the axial direction of the water storage cylinder.

2. The barrel structure according to claim 1, characterized in that: The supporting rib is cylindrical and extends axially along the water storage cylinder. One end of the supporting rib is an open end and the other end is a closed end closed by the cylinder cover. The sealing convex portion has a sealing section extending radially along the water storage cylinder. The end face of the open end of the supporting rib abuts against the outer side face of the sealing section, and the end of the cylinder mouth abuts against the inner side face of the sealing section.

3. The barrel structure according to claim 2, characterized in that: A support rib protruding toward the sealing section is provided at the end of the barrel mouth. The support rib is cylindrical and coaxially arranged with the barrel mouth. Both ends of the support rib are open ends. The first open end of the support rib is connected to the barrel mouth, and the end face of the second open end of the support rib is against the inner side face of the sealing section.

4. The barrel structure according to claim 3, characterized in that: The support ribs gradually narrow from the inside to the outside of the water tank, the radial dimension of the support convex ribs is larger than the maximum radial dimension of the support ribs, and the abutment between the sealing section and the end face of the support convex rib is located at the periphery of the abutment between the sealing section and the end face of the support rib.

5. The barrel structure according to claim 4, characterized in that: The end portion of the outer peripheral side of the sealing section is bent toward the inner side surface of the cylinder cover to form an outer peripheral sealing section, and the outer peripheral sealing section gradually expands from the inside of the water storage cylinder to the outside, and a corner portion is formed between the inner peripheral surface of the outer peripheral sealing section and the outer side surface of the sealing section, and the open end of the supporting rib is inserted into the corner portion, and the outer peripheral surface of the supporting rib abuts against the inner peripheral surface of the outer peripheral sealing section in the corner portion.

6. The barrel structure according to claim 5, characterized in that: The end of the inner peripheral side of the sealing section is bent toward the inner side of the cylinder cover to form an inner peripheral sealing section. The inner peripheral sealing section includes a first part connected to the outer peripheral sealing section and a second part connected to the sealing body. The first part gradually expands from the inside to the outside of the water cylinder, and the second part extends along the radial direction of the water cylinder.

7. The barrel structure according to any one of claims 1 to 6, characterized in that: The cylinder cover includes an inner frame and a groove-shaped blocking member, the bottom end of the blocking member groove extends into the cylinder mouth, the groove end of the blocking member is connected to the inner frame, the sealing body is sleeved on the outer peripheral groove wall of the blocking member, and an insertion groove is opened on the outer periphery of the sealing body, and the inner frame supporting the inner periphery of the convex rib is inserted into the insertion groove.

8. The barrel structure according to claim 7, characterized in that: The outer periphery of the sealing body is provided with an inner sealing convex part and an outer sealing convex part respectively extending along the radial direction of the water container, the sealing convex part is arranged on the inner side of the inner sealing convex part, and the inner sealing convex part, the outer sealing convex part and the sealing body form a plug-in groove; Preferably, an auxiliary sealing protrusion is provided on the inner periphery of the sealing body, and a free end of the auxiliary sealing protrusion is pressed and abutted against the outer peripheral groove wall of the blocking member.

9. The barrel structure according to claim 8, characterized in that: The inner frame is annular, the blocking member is an observation window, the end of the observation window slot is bent along the radial direction of the water container to form a flange, the observation window passes through the inner frame through the inner frame opening, the bottom end of the observation window slot and the flange are respectively located on the inner side and the outer side of the inner frame, the inner frame has an inner frame straight wall extending along the radial direction of the water container and the inner periphery forming the inner frame opening, the supporting convex rib is arranged on the inner frame straight wall and is coaxial with the inner frame opening, the inner periphery of the inner frame straight wall is inserted into the plug-in groove, and the outer sealing convex part is squeezed between the inner frame straight wall and the flange; Preferably, the outer peripheral sealing section, the sealing section, the inner peripheral sealing section and the sealing body form an extrusion deformation cavity, and a gap is provided between the outer side surface of the outer peripheral sealing section and the inner side surface of the inner frame straight wall to allow the extrusion deformation cavity to communicate with the outside atmosphere.

10. A drum washing machine, characterized in that: The invention comprises the barrel structure as described in any one of claims 1 to 9.

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