Washing machine roller mounting structure convenient to clean and washing machine

Abstract

The utility model discloses a washing machine drum installation structure convenient to clean and a washing machine, and the washing machine drum installation structure comprises a drum which comprises a drum bottom plate; the fixing assembly comprises an inner fixing plate, an outer fixing plate, a connecting bolt and a knob cover; the inner fixing plate is provided with a first through hole, the roller bottom plate is provided with a second through hole, the outer fixing plate is provided with a threaded hole, and the connecting bolt penetrates through the first through hole and the second through hole and is in threaded connection with the threaded hole so that the inner fixing plate and the outer fixing plate can be fixed to the inner side and the outer side of the roller bottom plate respectively. The knob cover is movably connected with the inner fixing plate, and rotation of the knob cover can drive the connecting bolt to rotate to achieve loosening and tightening operation. The two ends of the driving shaft are a connecting end and an output end respectively, the connecting end is used for connecting a motor, and the output end is connected with the fixing assembly to drive the roller to rotate. According to the detachable roller structure based on the scheme, a user can conveniently clean the roller, and the problem that dirt is accumulated on the outer wall of the roller and the inner wall of the outer roller is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of washing machines, and in particular to a washing machine drum mounting structure and a washing machine that are easy to clean. Background Art

[0002] Current washing machines consist of a fixed outer drum and a rotatable drum connected to the output shaft of a motor. The motor drives the drum to rotate, which in turn pushes the clothes to perform a dynamic washing process. After prolonged use, dirt accumulates on the outer and inner walls of the drum. This dirt thickens with increased use, and the accumulated dirt can breed microorganisms such as bacteria and mold, causing secondary contamination of clothing and affecting the wearer's health. The small gap between the drum and the outer drum prevents hands and cleaning tools from reaching between them, making existing washing machines difficult to clean. Utility Model Content

[0003] The purpose of the embodiments of the present utility model is to provide a washing machine drum mounting structure and a washing machine that are easy to clean, which can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] In one aspect, a washing machine drum mounting structure that is easy to clean is provided, comprising:

[0006] A roller, including a roller bottom plate;

[0007] and a second screw threaded hole extending from the first end of the guide rail and threadedly connected to the second end of the guide rail, so that the guide rail is fixed to the inner and outer sides of the roller bottom plate, respectively.

[0008] The driving shaft has a connecting end and an output end at both ends, wherein the connecting end is used to connect to the motor, and the output end is connected to the fixing assembly to drive the drum to rotate.

[0009] Optionally, the output end portion is a non-rotating structure, and the side wall of the output end portion is further provided with a clamping groove; the inner fixed plate is provided with a first mounting hole corresponding to the output end portion, the drum bottom plate is provided with a second mounting hole, and the outer fixed plate is provided with a third mounting hole corresponding to the output end portion, and the output end portion passes through the third mounting hole, the second mounting hole and the first mounting hole in sequence, and the rotation of the inner fixed plate relative to the output end portion can make the material around the first mounting hole engage with the clamping groove to limit the output end portion from being separated from the first mounting hole.

[0010] Optionally, a plurality of first through-holes are arranged on the inner fixing plate around the central circumference of the first mounting hole, the second through-holes and the threaded holes are respectively arranged corresponding to the first through-holes, and each of the first through-holes is correspondingly installed with a connecting bolt.

[0011] Optionally, the second engaging portion is an external gear tooth arranged on the outer circumference of the nut; the knob cover includes a gear ring, and the first engaging portion is an internal gear tooth arranged on the inner circumference of the gear ring. All the nuts are arranged around the inner circumference of the gear ring, and when the external gear teeth are engaged with the internal gear teeth, the gear ring can drive all the connecting bolts to rotate synchronously.

[0012] Optionally, the knob cover includes an annular surrounding wall plate and a top plate connected to one end of the surrounding wall plate, and the gear ring is arranged on the inner periphery of the surrounding wall plate.

[0013] Optionally, an ejection spring is provided between the ejector plate and the inner fixed plate, and the ejection spring is used to eject the knob cover to separate the outer gear teeth from the inner gear teeth.

[0014] Optionally, an inwardly extending inner buckle is provided at one end of the surrounding wall plate away from the top plate, and the inner buckle is buckled with a side of the inner fixing plate away from the top plate, thereby limiting the knob cover from being separated from the inner fixing plate.

[0015] Optionally, the outer wall of the surrounding wall plate is provided with an anti-slip groove.

[0016] Optionally, the surrounding wall plate and the top plate are an integral structure that is secondary injection molded outside the gear ring.

[0017] On the other hand, a washing machine is provided, comprising the above-mentioned washing machine drum mounting structure that is easy to clean.

[0018] The beneficial effects of the present application are as follows: the present invention provides a washing machine drum installation structure that is easy to clean, and a fixing assembly is provided to connect and fix the drive shaft and the drum. The fixing assembly includes an inner fixing plate, an outer fixing plate, connecting bolts and a knob cover. The connecting bolts can be twisted through the knob cover to realize disassembly of the fixing assembly, thereby making it convenient for the user to disassemble the drum for cleaning. Therefore, the structure of the detachable drum based on this scheme facilitates the user's cleaning operation of the drum, and effectively avoids the accumulation of dirt on the outer wall of the drum and the inner wall of the outer drum to breed bacteria, mold and other microorganisms, causing secondary contamination of clothes.

[0019] Importantly, this solution provides a knob cover for twisting the connecting bolt. During assembly and disassembly, the user can simply rotate the knob cover by hand without the aid of other tools, thus simplifying the assembly and disassembly process and reducing the difficulty of assembly and disassembly. Furthermore, the knob cover is axially movable, with a first engaging portion provided on the knob cover and a second engaging portion provided on the connecting bolt. When twisting the connecting bolt, the user needs to press the knob cover to engage the first and second engaging portions before the rotating knob cover can rotate the connecting bolt. In a natural state, the first and second engaging portions are separated, and rotating the knob cover cannot rotate the connecting bolt. This prevents the problem of the connecting bolt loosening due to the clothes pushing the knob cover to rotate during washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application is further described in detail below with reference to the accompanying drawings and examples.

[0021] Figure 1 This is a schematic diagram of the structure of the easy-to-clean washing machine drum installation structure according to an embodiment of the present application from an outside perspective;

[0022] Figure 2 This is a schematic diagram of the structure of the washing machine drum installation structure that is easy to clean according to an embodiment of the present application and the inner side perspective of the washing machine;

[0023] Figure 3 Schematic diagram of the washing machine drum installation structure and the explosion of the washing machine according to the embodiment of the present application;

[0024] Figure 4 A partial cross-sectional view of a washing machine drum mounting structure and a washing machine that are easy to clean according to an embodiment of the present application;

[0025] Figure 5 This is a schematic structural diagram of the connection between the fixing assembly and the drive shaft according to an embodiment of the present application;

[0026] Figure 6 for Figure 5 One of the exploded schematic diagrams of the structure shown;

[0027] Figure 7 for Figure 5 The second exploded diagram of the structure shown;

[0028] Figure 8 This is a schematic structural diagram of the knob cover described in an embodiment of the present application.

[0029] In the picture:

[0030] 1. Drum; 11. Drum bottom plate; 111. Second mounting hole; 112. Second through-hole; 2. Drive shaft; 21. Output end; 211. Mounting slot; 3. Fixing assembly; 31. Inner fixing plate; 311. First mounting hole; 32. Outer fixing plate; 321. Third mounting hole; 33. Connecting bolt; 331. Outer gear; 34. Knob cover; 341. Gear ring; 3411. Inner gear; 342. Top plate; 343. Surrounding plate; 3431. Inner buckle; 35. Ejection spring. DETAILED DESCRIPTION

[0031] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0032] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0033] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] Current washing machines consist of a fixed outer drum and a rotatable drum connected to the output shaft of a motor. The motor drives the drum to rotate, which in turn pushes the clothes to perform a dynamic washing process. After prolonged use, dirt accumulates on the outer and inner walls of the drum. This dirt thickens with increased use, and the accumulated dirt can breed microorganisms such as bacteria and mold, causing secondary contamination of clothing and affecting the wearer's health. The small gap between the drum and the outer drum prevents hands and cleaning tools from reaching between them, making existing washing machines difficult to clean.

[0035] In order to overcome the above technical problems, refer to Figure 1-8 , this embodiment provides a washing machine drum installation structure that is easy to clean, including a drum 1, a fixing assembly 3 and a drive shaft 2; wherein the drum 1 includes a drum bottom plate 11; the fixing assembly 3 includes an inner fixing plate 31, an outer fixing plate 32, a connecting bolt 33 and a knob cover 34; the inner fixing plate 31 is provided with a first through-hole, the drum bottom plate 11 is provided with a second through-hole 112, the outer fixing plate 32 is provided with a threaded hole, the connecting bolt 33 passes through the first through-hole and the second through-hole 112 and is threadedly connected to the threaded holes to fix the inner fixing plate 31 and the outer fixing plate 32 to the inner and outer sides of the drum bottom plate 11 respectively; the knob cover 34 is movably connected to the inner fixing plate 31, and the knob cover 34 can be rotated relative to the inner fixing plate The plate 31 moves axially and rotationally; the knob cover 34 is provided with a first clamping portion, and the nut of the connecting bolt 33 is provided with a second clamping portion. The knob cover 34 is axially close to the inner fixed plate 31 to enable the first clamping portion to be engaged with the second clamping portion. At this time, the rotation of the knob cover 34 can drive the connecting bolt 33 to rotate to achieve a loosening or tightening operation; the knob cover 34 is axially away from the inner fixed plate 31 to separate the first clamping portion from the second clamping portion. At this time, the knob cover 34 can rotate freely relative to the connecting bolt 33; the two ends of the drive shaft 2 are respectively a connecting end and an output end 21, the connecting end is used to connect to the motor, and the output end 21 is connected to the fixing assembly to drive the drum 1 to rotate.

[0036] The easy-to-clean washing machine drum mounting structure of this embodiment can be used in a washing machine that includes at least a fixed outer drum and a motor. A drum 1 is disposed within the fixed outer drum and is rotatable relative to the fixed outer drum. The motor is connected to a drive shaft 2, which drives the drum 1 to rotate. In this embodiment, the drum 1 is secured by a fixing assembly, allowing the user to easily disassemble the fixing assembly and separate the drum 1 from the drive shaft 2, thereby removing the drum 1 from the fixed outer drum. The drum 1 and the fixed outer drum can then be cleaned separately.

[0037] When removing or installing the drum 1, the user can manually press the knob cover 34 so that the first engaging portion on the knob cover 34 engages with the second engaging portion on the connecting bolt 33. The user can then rotate the knob cover 34 to rotate the connecting bolt 33, thereby loosening or tightening the connecting bolt 33. After loosening the connecting bolt 33, the inner fixing plate 31, the drum 1, and the outer fixing plate 32 can be separated, allowing the drum 1 to be removed. After tightening the connecting bolt 33, the inner fixing plate 31 and the outer fixing plate 32 clamp the drum 1 from the inside and outside, respectively, thereby securing the drum 1.

[0038] In summary, based on the easy-to-clean washing machine drum installation structure of this embodiment, a fixing assembly is provided to connect and fix the drive shaft 2 and the drum 1. The fixing assembly 3 includes an inner fixing plate 31, an outer fixing plate 32, a connecting bolt 33 and a knob cover 34. The connecting bolt 33 can be twisted through the knob cover 34 to achieve disassembly of the fixing assembly, thereby making it convenient for the user to remove the drum 1 for cleaning. Therefore, the structure of the detachable drum 1 based on this solution facilitates the user's cleaning operation of the drum 1, and effectively avoids the accumulation of dirt on the outer wall of the drum 1 and the inner wall of the outer drum, which breeds bacteria, mold and other microorganisms, causing secondary contamination of clothes.

[0039] Importantly, this solution provides a knob cover 34 for twisting the connecting bolt 33. During assembly and disassembly, the user can simply rotate the knob cover 34 by hand without the aid of other tools, thereby simplifying the assembly and disassembly process and reducing the difficulty of assembly and disassembly. Furthermore, the knob cover 34 is axially movable, with a first engaging portion provided on the knob cover 34 and a second engaging portion provided on the connecting bolt 33. When twisting the connecting bolt 33, the user needs to press the knob cover 34 to engage the first and second engaging portions before the rotating knob cover 34 can rotate the connecting bolt 33. In a natural state, the first and second engaging portions are separated, and rotating the knob cover 34 cannot rotate the connecting bolt 33. This prevents the problem of the connecting bolt 33 loosening due to the clothes pushing the knob cover 34 to rotate during washing.

[0040] In one embodiment, the output end portion 21 is a non-rotating structure, and the side wall of the output end portion 21 is further provided with a snap-in groove 211; the inner fixing plate 31 is provided with a first mounting hole 311 corresponding to the output end portion 21, the drum bottom plate 11 is provided with a second mounting hole 111, and the outer fixing plate 32 is provided with a third mounting hole 321 corresponding to the output end portion 21. The output end portion 21 passes through the third mounting hole 321, the second mounting hole 111 and the first mounting hole 311 in sequence. By rotating the inner fixing plate 31 relative to the output end portion 21, the material around the first mounting hole 311 can be engaged with the snap-in groove 211 to prevent the output end portion 21 from being separated from the first mounting hole 311.

[0041] On the drive shaft 2, a shoulder is formed at the base of the output end 21 to support the outer fixing plate 32. During assembly, the inner and outer fixing plates 31 and 32 are respectively positioned on the inner and outer sides of the drum base plate 11, with the first mounting hole 311, the second mounting hole 111, and the third mounting hole 321 aligned. The output end 21 is then passed through the third mounting hole 321, the second mounting hole 111, and the first mounting hole 311, in sequence, so that the outer fixing plate 32 abuts the shoulder and the inner fixing plate 31 aligns with the mounting slot 211 on the output end 21. The inner fixing plate 31 is then rotated to offset the first mounting hole 311 from the output end 21, partially engaging the inner fixing plate 31 with the mounting slot 211. The first through-hole, the second through-hole 112, and the threaded hole are aligned. Finally, the connecting bolt 33 is tightened by pressing and rotating the knob cover 34.

[0042] The output end 21 utilizes a non-rotating structure. When engaged with the third mounting hole 321 of the outer fixing plate 32, it can stably drive the outer fixing plate 32 to rotate, thereby driving the rotation of the drum 1. The output end 21 is provided with a mounting groove 211 that engages with the material surrounding the first mounting hole 311 of the inner fixing plate 31. This design effectively prevents the output end 21 from dislodging from the first mounting hole 311 when subjected to force, thereby enhancing the stability of the connection between the drum 1 and the drive shaft 2.

[0043] In one embodiment, a plurality of first through-holes are arranged on the inner fixing plate 31 around the central circumference of the first mounting hole 311 , the second through-hole 112 and the threaded holes are respectively arranged corresponding to the first through-holes, and each of the first through-holes is correspondingly installed with a connecting bolt 33 .

[0044] By evenly distributing multiple first through-holes around the first mounting hole 311 and installing connecting bolts 33 respectively, a multi-point fixing structure can be formed. Compared with a single point or a small number of fixing points, this multi-point fixing method can more effectively disperse the stress and vibration generated by the drum 1 during the rotation process, thereby enhancing the connection strength and stability between the drum 1 and the drive shaft 2.

[0045] In one embodiment, referring to Figure 4 The second engaging portion is an outer gear 331 arranged on the outer circumference of the nut; the knob cover 34 includes a gear ring 341, and the first engaging portion is an inner gear 3411 arranged on the inner circumference of the gear ring 341. All the nuts are arranged around the inner circumference of the gear ring 341. When the outer gear 331 is engaged with the inner gear 3411, the gear ring 341 can drive all the connecting bolts 33 to rotate synchronously.

[0046] When the outer gear teeth 331 mesh with the inner gear teeth 3411, the rotation of the gear ring 341 directly drives the synchronous rotation of all connecting bolts 33. This design ensures that all connecting bolts 33 are evenly stressed during tightening and loosening, preventing loosening or damage caused by uneven stress on individual bolts. The user simply rotates the gear ring 341 of the knob cover 34 to synchronize tightening and loosening all connecting bolts 33. This design simplifies the operation process and reduces operational difficulty, making it easier for users to complete assembly and disassembly of the drum 1.

[0047] Through the meshing of the gear teeth, a stable mechanical transmission connection is established between the knob cover 34 and the connecting bolt 33. Compared with the traditional toothless design, this connection method is more resistant to external vibration and impact, thereby enhancing the connection reliability between the drum 1 and the drive shaft 2.

[0048] In one embodiment, referring to Figure 8 The knob cover 34 includes an annular surrounding wall plate 343 and a top plate 342 connected to one end of the surrounding wall plate 343 , and the gear ring 341 is arranged on the inner periphery of the surrounding wall plate 343 .

[0049] The annular surrounding wall 343 provides a stable support structure for the knob cover 34, ensuring that the knob cover 34 maintains good rigidity and stability when subjected to force. The design of the top plate 342 allows the user to more comfortably grip the knob cover 34 and easily rotate it. Furthermore, the top plate 342 also serves as a decorative feature of the knob cover 34, enhancing the overall aesthetics of the washing machine.

[0050] In one embodiment, an ejection spring 35 is provided between the ejection plate 342 and the inner fixing plate 31 . The ejection spring 35 is used to eject the knob cover 34 so as to separate the outer gear teeth 331 from the inner gear teeth 3411 .

[0051] The ejection spring 35 is provided so that the outer gear teeth 331 and the inner gear teeth 3411 can remain separated in a natural state, thereby preventing the knob cover 34 from rotating and causing the connecting bolt 33 to be accidentally loosened.

[0052] In one embodiment, an inwardly extending inner buckle 3431 is provided at one end of the surrounding wall plate 343 away from the top plate 342 , and the inner buckle 3431 is engaged with a side of the inner fixing plate 31 away from the top plate 342 , thereby limiting the knob cover 34 from separating from the inner fixing plate 31 .

[0053] The design of the inner buckle 3431 forms a stable buckle connection between the knob cover 34 and the inner fixing plate 31. This connection method not only enhances the stability of the knob cover 34 during rotation, but also avoids the problem of the knob cover 34 falling off due to vibration or impact.

[0054] In one embodiment, an outer wall of the surrounding wall plate 343 is provided with an anti-slip groove.

[0055] The design of the anti-slip groove enables the user to hold the surrounding wall plate 343 more firmly when holding the knob cover 34, thereby preventing the knob cover 34 from falling off or being misoperated due to hand slippage.

[0056] In one embodiment, the surrounding wall plate 343 and the top plate 342 are an integral structure that is secondary injection molded outside the gear ring 341 .

[0057] The secondary injection molding technology allows parts of different materials or different thicknesses such as the wall plate 343, the top plate 342 and the gear ring 341 to be combined together to form a solid integrated structure. This design significantly enhances the overall structural strength of the knob cover 34, making it more durable and reliable.

[0058] Through overmolding, appropriate materials can be selected based on the function and stress conditions of different components. For example, the gear ring 341 can be constructed from a material with high hardness and good wear resistance, while the surrounding wall plate 343 and top plate 342 can be constructed from a material with high toughness and ease of processing. This design optimizes material utilization and reduces manufacturing costs. Overmolding technology integrates multiple components into a single structure, simplifying the production process. This not only reduces the number of assembly steps and labor hours during the production process, but also reduces quality issues caused by improper assembly.

[0059] On the other hand, a washing machine is provided, comprising the above-mentioned washing machine drum mounting structure that is easy to clean.

[0060] Based on the easy-to-clean washing machine drum mounting structure of this embodiment, the washing machine of this embodiment has the advantage of being easy to disassemble and clean.

[0061] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other positions or relationships are used solely for ease of description and simplified operation, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0062] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0063] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0064] The technical principles of the present application have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the present application and are not to be construed in any way as limiting the scope of protection of the present application. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present application without inventive effort, and such implementations will fall within the scope of protection of the present application.

Claims

1. A washing machine drum installation structure that is easy to clean, characterized in that: include: A drum (1) comprising a drum bottom plate (11); A fixing assembly (3) comprises an inner fixing plate (31), an outer fixing plate (32), a connecting bolt (33) and a knob cover (34); the inner fixing plate (31) is provided with a first through-hole, the roller bottom plate (11) is provided with a second through-hole (112), the outer fixing plate (32) is provided with a threaded hole, the connecting bolt (33) passes through the first through-hole and the second through-hole (112) and is threadedly connected to the threaded hole to fix the inner fixing plate (31) and the outer fixing plate (32) to the inner and outer sides of the roller bottom plate (11) respectively; the knob cover (34) is movably connected to the inner fixing plate (31), and the knob cover (34) is movably connected to the inner fixing plate (31). 4) can move axially and rotate relative to the inner fixing plate (31); the knob cover (34) is provided with a first engaging portion, and the nut of the connecting bolt (33) is provided with a second engaging portion. When the knob cover (34) is axially close to the inner fixing plate (31), the first engaging portion and the second engaging portion can be engaged. At this time, the rotation of the knob cover (34) can drive the connecting bolt (33) to rotate to achieve a loosening or tightening operation; when the knob cover (34) is axially away from the inner fixing plate (31), the first engaging portion and the second engaging portion can be separated. At this time, the knob cover (34) can rotate freely relative to the connecting bolt (33); The driving shaft (2) has a connecting end and an output end (21) at both ends, wherein the connecting end is used to connect to the motor, and the output end (21) is connected to the fixing assembly (3) to drive the drum (1) to rotate.

2. The easy-to-clean washing machine drum mounting structure according to claim 1, characterized in that: The output end portion (21) is a non-rotating structure, and a side wall of the output end portion (21) is further provided with a clamping groove (211); the inner fixing plate (31) is provided with a first mounting hole (311) corresponding to the output end portion (21), the drum bottom plate (11) is provided with a second mounting hole (111), and the outer fixing plate (32) is provided with a third mounting hole (321) corresponding to the output end portion (21); the output end portion (21) passes through the third mounting hole (321), the second mounting hole (111) and the first mounting hole (311) in sequence; and the inner fixing plate (31) is rotated relative to the output end portion (21) so that the material around the first mounting hole (311) is engaged with the clamping groove (211) to prevent the output end portion (21) from being separated from the first mounting hole (311).

3. The easy-to-clean washing machine drum mounting structure according to claim 2, characterized in that: The inner fixing plate (31) is provided with a plurality of first through-holes arranged around the central circumference of the first mounting hole (311), the second through-hole (112) and the threaded hole are respectively provided corresponding to the first through-holes, and each of the first through-holes is provided with a corresponding connecting bolt (33).

4. The easy-to-clean washing machine drum mounting structure according to claim 3, characterized in that: The second engaging portion is an outer gear (331) arranged on the outer circumference of the nut; the knob cover (34) includes a gear ring (341); the first engaging portion is an inner gear (3411) arranged on the inner circumference of the gear ring (341); all the nuts are arranged around the inner circumference of the gear ring (341); when the outer gear (331) is engaged with the inner gear (3411), the gear ring (341) can drive all the connecting bolts (33) to rotate synchronously.

5. The easy-to-clean washing machine drum mounting structure according to claim 4, characterized in that: The knob cover (34) comprises an annular surrounding wall plate (343) and a top plate (342) connected to one end of the surrounding wall plate (343), and the gear ring (341) is arranged on the inner periphery of the surrounding wall plate (343).

6. The easy-to-clean washing machine drum mounting structure according to claim 5, characterized in that: An ejection spring (35) is provided between the top plate (342) and the inner fixed plate (31), and the ejection spring (35) is used to eject the knob cover (34) so ​​as to separate the outer gear teeth (331) from the inner gear teeth (3411).

7. The easy-to-clean washing machine drum mounting structure according to claim 6, characterized in that: An inwardly extending inner buckle (3431) is provided at one end of the surrounding wall plate (343) away from the top plate (342), and the inner buckle (3431) is buckled with a side of the inner fixing plate (31) away from the top plate (342), thereby limiting the knob cover (34) from being separated from the inner fixing plate (31).

8. The easy-to-clean washing machine drum mounting structure according to claim 5, characterized in that: The outer wall of the surrounding wall plate (343) is provided with an anti-slip groove.

9. The easy-to-clean washing machine drum mounting structure according to claim 5, characterized in that: The surrounding wall plate (343) and the top plate (342) are an integral structure formed by secondary injection molding outside the gear ring (341).

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

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