Washing machine with inner drum convenient installation structure

Abstract

The utility model relates to a washing machine with inner tube convenient installation structure, the washing machine includes inner tube subassembly, outer tube subassembly and power transmission piece, the power transmission piece includes the mount pad fixed in the outer tube subassembly and the shaft sleeve rotatablely arranged in the mount pad, the outer wall of shaft sleeve is equipped with annular shaft shoulder in circumference, the inner tube subassembly is set up on the shaft sleeve and abuts at the annular shaft shoulder, the fixed nut is fastened in the shaft sleeve from the inside of the inner tube subassembly, and the inner tube subassembly is axially compressed and fixed on the annular shaft shoulder, the utility model embodiment passes through the structure of fixed nut and the matched wrench structure of optimization, so that the user can carry out convenient dismounting to the inner tube subassembly, and the easy use and security of maintenance operation are improved.

Description

Technical Field

[0001] This utility model relates to electrical appliances, specifically to a washing machine with a convenient inner drum installation structure. Background Technology

[0002] Existing top-loading washing machines generally include an outer drum assembly, an inner drum assembly, a power transmission mechanism, and a pulsator assembly. The inner drum assembly is located inside the outer drum assembly and is used to hold clothes and work with the power transmission mechanism to achieve washing and spin-drying functions. To ensure the stability and safety of the inner drum assembly during high-speed operation, it needs to be reliably installed.

[0003] The common practice is to fix the inner cylinder with ordinary nuts or locking components, which makes the inner cylinder inconvenient to disassemble and requires the use of a large mechanical socket wrench. The operating space inside the inner cylinder is small, and the disassembly and assembly sequence of the inner cylinder assembly and impeller assembly is also relatively complicated. After long-term use, structural aging may even lead to the inability to disassemble.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model discloses a washing machine with a convenient inner drum installation structure.

[0006] The technical solution adopted in this embodiment of the utility model is as follows: A washing machine with a convenient inner drum installation structure includes an inner drum assembly, an outer drum assembly, and a power transmission component. The power transmission component includes a mounting base fixed to the outer drum assembly and a bushing rotatably disposed within the mounting base. The outer wall of the bushing is provided with an annular shoulder. The inner drum assembly is sleeved on the bushing and abuts against the annular shoulder. A fixing nut is fastened to the bushing from the inside of the inner drum assembly, axially pressing and fixing the inner drum assembly to the annular shoulder.

[0007] A further technical solution is that an axial elastic abutment component is provided on the mounting end face of the fixing nut; when the fixing nut is tightened, the axial elastic abutment component protrudes axially and elastically abuts against the surface of the inner cylinder assembly, so as to form an elastic compression fit between the fixing nut and the inner cylinder assembly.

[0008] A further technical solution is that the mounting end face of the fixing nut is provided with a mounting groove, and the sealing ring is embedded in the mounting groove; when the fixing nut is tightened, the sealing ring abuts against and presses against the inner cylinder assembly and undergoes elastic deformation.

[0009] A further technical solution is that the mounting end face of the fixing nut is provided with a plurality of accommodating blind holes, and the opening of the accommodating blind holes has an inwardly narrowing limiting edge; a compression spring and a ball are installed in the accommodating blind holes, and the ball protrudes out of the limiting edge under the elastic force of the compression spring; when the fixing nut is tightened, the ball abuts against and presses against the inner cylinder assembly, while the compression spring undergoes elastic deformation.

[0010] A further technical solution is that the power transmission component further includes a power output shaft that is rotatably disposed within the bushing, for driving the impeller assembly of the washing machine to rotate; the upper end of the power output shaft extends out of the bushing.

[0011] A further technical solution is that the washing machine is equipped with a wrench for removing and installing the fixing nut; the wrench includes a sleeve portion for sleeved on the outside of the fixing nut and a handle fixed to the sleeve portion; an avoidance channel is provided between the top wall of the sleeve portion and the handle; when the wrench drives the fixing nut to rotate, the power output shaft passes through the avoidance channel.

[0012] A further technical solution is that the impeller assembly includes an impeller sleeved on the power output shaft and a handle located above the impeller; the inner hole of the impeller is splined with the power output shaft so that the impeller rotates synchronously with the power output shaft; the handle and the impeller are axially fastened together by a fixing member.

[0013] A further technical solution is that the handle is mounted on the end of the power output shaft, and the spring plunger screw passes through the side wall of the handle and abuts against the power output shaft radially.

[0014] The beneficial effects of this utility model embodiment are as follows: 1. Improve the reliability and stability of the inner cylinder fastening. In this embodiment of the utility model, by setting an axial elastic abutment group on the mounting end face of the fixing nut, when the fixing nut is tightened, the elastic element generates elastic deformation after being axially compressed, forming a continuous and compensable axial clamping force, which can maintain the reliable clamping of the inner cylinder assembly, significantly reduce the risk of loosening, and improve the overall machine operation stability and service life.

[0015] 2. In the embodiment of the present invention, when the fixing nut uses a sealing ring structure, the sealing ring undergoes elastic compression deformation during the tightening process by the fixing nut. This ensures the required axial preload while effectively preventing liquid infiltration and reducing the probability of rust and corrosion. When the fixing nut employs a ball bearing and compression spring embodiment, it can elastically absorb and buffer the minor vibrations and impacts generated by the inner cylinder, reducing rigid collisions and knocks, thereby reducing operating noise and abnormal sounds.

[0016] 3. Facilitates assembly. This embodiment of the invention optimizes the structure of the fixing nut and the matching wrench, allowing users or maintenance personnel to easily assemble and disassemble the fixing nut of the inner cylinder assembly without removing the power output shaft, significantly improving the ease of use and safety of maintenance operations. Furthermore, by combining the assembly method of the impeller and impeller handle, a modular, quick-assembly and disassembly structural design can be formed, facilitating the coordinated maintenance of the inner cylinder, impeller, and power transmission components, thus improving the convenience of assembly and subsequent maintenance. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the washing machine in an embodiment of the present utility model.

[0018] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle.

[0019] Figure 3 This is one embodiment of the fixing nut in the present utility model.

[0020] Figure 4 This is another embodiment of the fixing nut in the present utility model.

[0021] Figure 5 This is a schematic diagram of the wrench in an embodiment of the present utility model.

[0022] Figure 6 This is an exploded view showing the impeller assembly in an embodiment of the present invention.

[0023] Figure 7 This is an exploded view of the impeller assembly in an embodiment of this utility model.

[0024] In the diagram: 1. Inner cylinder assembly; 2. Outer cylinder assembly; 3. Power transmission component; 301. Mounting base; 302. Bushing; 303. Annular shoulder; 304. Power output shaft; 4. Fixing nut; 401. Mounting end face; 402. Sealing ring; 403. Ball bearing; 5. Impeller assembly; 501. Impeller; 502. Handle; 503. Positioning hole; 6. Wrench; 601. Sleeve part; 602. Handle; 603. Clearance passage. Detailed Implementation

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0027] The washing machine with a convenient inner drum installation structure disclosed in this utility model can be used for single-drum washing machines, twin-drum washing machines, or multi-drum washing machines. This embodiment shows a twin-drum washing machine, and only the structure of one of the inner drums is shown in the outer drum for illustration.

[0028] Figure 1 This is a cross-sectional view of the washing machine in an embodiment of the present utility model. Figure 2 for Figure 1 An enlarged diagram of part A in the diagram. (See attached image.) Figure 1 , Figure 2 As shown, the washing machine includes an outer drum assembly 2, an inner drum assembly 1, a power transmission component 3, a fixing nut 4 for fastening the inner drum assembly 1, and a pulsator assembly 5.

[0029] The outer drum assembly 2 is fixed inside the washing machine casing and is used to accommodate water and the inner drum assembly 1. The inner drum assembly 1 is a washing tub located inside the outer drum assembly 2, used to hold clothes, and can rotate with the power transmission component 3 to perform washing operations when needed. The power transmission component 3 is installed in the central area of ​​the bottom of the outer drum assembly 2 and transmits the motor's power to the impeller assembly 5. A mounting hole is provided at the center of the bottom of the inner drum assembly 1. The diameter of the mounting hole matches the outer diameter of the bushing 302 of the power transmission component 3, so that the inner drum assembly 1 can be axially fitted onto the bushing 302 from above, and axially pressed and fixed with the annular shoulder 303 of the power transmission component 3 by the fixing nut 4, so as to achieve reliable installation and convenient disassembly of the inner drum assembly 1.

[0030] Specifically, the power transmission component 3 includes a mounting base 301 fixed to the outer cylinder assembly 2. The mounting base 301 is an integral or separate structure, preferably made of aluminum alloy, cast iron, or engineering plastic, and is fixed to the bottom of the outer cylinder assembly 2 by screws, welding, or clips. The mounting base 301 is used to support the bushing 302 and the power output shaft 304. The mounting base 301 also has bearing mounting positions and seal mounting positions inside, and bearings, oil seals, sealing rings, and other structures can be arranged as needed to ensure that each component can rotate relatively freely and to prevent liquid leakage between the inner cylinder assembly 1 and the power transmission component 3.

[0031] A bushing 302 is disposed within a mounting base 301. The outer circumferential surface of the bushing 302 is rotatably mounted relative to the mounting base 301 via bearings, allowing the bushing 302 and the inner cylinder assembly 1 fixed to the bushing 302 to rotate relative to the mounting base 301. An annular shoulder 303 is integrally formed on the outer wall of the bushing 302, with its surface facing upwards, to provide an axial support surface for the inner cylinder assembly 1. When the inner cylinder assembly 1 is fitted onto the bushing 302, its bottom or corresponding bottom structure abuts against the annular shoulder 303. Through the axial clamping action of the fixing nut 4, the inner cylinder assembly 1 is axially positioned and reliably fixed.

[0032] The outer diameter of the annular shoulder 303 is slightly larger than the outer diameter of the mating part between the inner cylinder assembly 1 and the bushing 302 to prevent the inner cylinder assembly 1 from falling off under axial load. The end face of the annular shoulder 303 can be machined into a flat surface, a micro-conical surface, or an end face with a sealing mating structure as needed to achieve good positioning and sealing performance with the inner cylinder assembly 1.

[0033] After the inner cylinder assembly 1 is installed in place, the fixing nut 4 is inserted from inside the inner cylinder assembly 1, and its thread engages with the external thread of the bushing 302. By tightening the fixing nut 4, the mounting end face 401 applies an axial clamping force to the inner cylinder assembly 1, thereby achieving a stable connection between the inner cylinder assembly 1 and the annular shoulder 303. The fixing nut 4 is preferably a metal part, and its outer circumferential surface can be machined with a polygonal shape, such as a hexagonal shape, to facilitate disassembly and assembly operations with a wrench 6.

[0034] To improve the reliability of the fit between the inner cylinder assembly 1 and the fixing nut 4 and reduce the gap caused by manufacturing errors and thermal expansion, this embodiment provides an axial elastic abutment component on the mounting end face 401 of the fixing nut 4. When the fixing nut 4 is tightened, the axial elastic abutment component protrudes axially and elastically abuts against the surface of the inner cylinder assembly 1 to form an elastic pressing fit between the fixing nut 4 and the inner cylinder assembly 1.

[0035] According to different embodiments, the axial elastic abutment assembly can adopt one of the following two specific structures, or a combination of the two, or other similar structures with the same principle commonly used in the mechanical field.

[0036] Figure 3 This is one embodiment of the fixing nut in this utility model. For example... Figure 3 As shown, the mounting end face 401 of the fixing nut 4 has a mounting groove, and the sealing ring 402 is embedded in the mounting groove. When the fixing nut 4 is tightened, the sealing ring 402 abuts against and presses against the inner cylinder assembly 1 and undergoes elastic deformation. The sealing ring 402 can be made of rubber, silicone, fluororubber, or other elastic materials with good elasticity and water resistance. The axial height of the sealing ring 402 is slightly higher than the depth of the mounting groove, so that when the sealing ring 402 is not under pressure, part of its thickness protrudes moderately from the mounting end face 401.

[0037] Specifically, during the axial tightening of the fixing nut 4, the mounting end face 401 gradually approaches the inner surface of the inner cylinder assembly 1. When the sealing ring 402 contacts the inner cylinder assembly 1 and is continuously compressed, the sealing ring 402 undergoes elastic compression deformation, forming an axial elastic abutment. Through the elastic deformation of the sealing ring 402, a reliable axial clamping force is formed between the fixing nut 4 and the inner cylinder assembly 1. On the other hand, an annular sealing ring is formed in the contact area, which helps to prevent washing liquid and dirt from entering the mating area of ​​the fixing nut 4 and the bushing 302, thereby improving the overall waterproof and corrosion-resistant performance of the machine.

[0038] The structure is simple, low-cost, and easy to process and assemble. Those skilled in the art can adjust the hardness, cross-sectional shape, and size of the sealing ring 402 according to actual needs to obtain suitable clamping force and sealing performance.

[0039] Figure 4 This is another embodiment of the fixing nut in this utility model. For example... Figure 4 As shown, in another embodiment, a plurality of accommodating blind holes are formed on the mounting end face 401 of the fixing nut 4. The bottom of the accommodating blind holes is closed, and an inwardly recessed limiting edge is formed at the opening of the hole. The inner diameter of the limiting edge is smaller than the diameter of the ball 403 inside the accommodating blind hole. Preferably, the accommodating blind holes are evenly arranged. Figure 4 There are 4 in the middle.

[0040] A compression spring and a ball bearing 403 are sequentially assembled in each accommodating blind hole. One end of the compression spring abuts against the bottom of the blind hole, and the other end abuts against the ball bearing 403. After assembly, under the elastic force of the compression spring, part of the ball bearing 403 protrudes outward beyond the limiting edge, but due to the limiting effect of the limiting edge, the ball bearing 403 will not fall out of the accommodating blind hole.

[0041] When the fixing nut 4 is tightened, the mounting end face 401 gradually approaches the inner cylinder assembly 1, and the balls 403 contact the inner surface of the inner cylinder assembly 1. As the fixing nut 4 continues to tighten, each ball 403 is pressed back into the receiving blind hole under the reaction force of the inner cylinder assembly 1, and the compression spring is compressed and elastically deformed, thereby forming multiple elastic contact points distributed in the circumferential direction. Through these elastic contact points, a uniformly distributed elastic clamping force is formed between the fixing nut 4 and the inner cylinder assembly 1, which can effectively compensate for manufacturing and assembly errors, improve the stability of the connection, and reduce abnormal noise caused by vibration.

[0042] In this embodiment, the multi-point elastic contact provides reliable clamping force and also buffers and dampes the minor vibrations of the inner drum assembly 1 during the washing machine's operation. Those skilled in the art can adjust parameters such as the number of blind holes, their distribution angle, the diameter of the ball bearing 403, and the stiffness of the compression spring according to the inner drum size and load requirements to obtain the best clamping and vibration damping effect.

[0043] In practical applications, the aforementioned sealing ring structure and ball and spring structure can be used individually or in combination depending on the specific working conditions. For example, an annular sealing ring 402 can be provided on the mounting end face 401 of the fixing nut 4, and several balls 403 and compression springs can be evenly distributed around it to take into account both sealing and vibration damping functions.

[0044] The power transmission component 3 also includes a power output shaft 304 rotatably disposed within the bushing 302 for driving the impeller assembly 5 of the washing machine to rotate. The upper end of the power output shaft 304 extends out of the bushing 302. Figure 5 This is a schematic diagram of the wrench in an embodiment of this utility model. (As shown...) Figure 5 As shown, the washing machine is equipped with a wrench 6 for removing and installing the fixing nut 4. The wrench 6 includes a sleeve portion 601 for fitting onto the outside of the fixing nut 4 and a handle 602 fixed to the sleeve portion 601.

[0045] The sleeve portion 601 is used to be sleeved on the outside of the fixing nut 4. Its inner surface can be machined into a polygonal hole, such as a hexagonal hole, that matches the outer contour of the fixing nut 4, or an inner protrusion can be provided to achieve reliable torque transmission between the wrench 6 and the fixing nut 4.

[0046] The handle 602 is fixedly connected to the sleeve 601 and is used for manual rotation. The handle 602 can be a straight rod, a "T" shape, or other convenient operation structures, and can be made of metal or reinforced plastic.

[0047] To address the issue of interference between the wrench 6 and the power output shaft 304 during fitting and rotation, a clearance channel 603 is provided between the top wall of the sleeve portion 601 and the handle 602. The clearance channel 603 is a through structure, forming an axially extending opening or passage. When the wrench 6 is fitted onto the fixing nut 4 and rotated, the power output shaft 304, extending above the bushing 302, can pass outward through the clearance channel 603 without colliding with the wrench 6. Figure 6 This is a schematic diagram of the installation position of the fixing nut in an embodiment of this utility model, combined with... Figure 2 , Figure 6 The necessity of setting up an obstacle avoidance channel 603 on the wrench 6 is understandable.

[0048] The cross-sectional dimensions of the clearance channel 603 should be greater than or equal to the outer diameter of the power output shaft 304 to ensure sufficient clearance. The clearance channel 603 can be slot-shaped, hole-shaped, or irregular in shape, and its specific shape can be optimized according to the overall structure of the wrench 6 and the position of the power output shaft 304.

[0049] Figure 7 This is an exploded view of the impeller assembly in an embodiment of this utility model. For ease of structural illustration, Figure 7 The outer cylinder assembly and other components are not shown. Figure 7 As shown, the impeller assembly 5 includes an impeller 501 sleeved on the power output shaft 304 and a handle 502 located above the impeller 501.

[0050] An inner hole is formed at the center of the impeller 501. This inner hole engages with the power output shaft 304 via a spline, allowing the impeller 501 to rotate synchronously with the power output shaft 304. It can be pulled out axially when disassembly is required. The upper surface of the impeller 501 has multiple blades, ribs, or flow guide structures to agitate water and clothes, depending on washing performance requirements. A handle 502 is located above the impeller 501, allowing users or maintenance personnel to easily disassemble the impeller 501. The handle 502 is axially fastened to the impeller 501 using fasteners such as screws, bolts, clips, or rivets, ensuring that the handle 502 remains integrated with the impeller 501 during use and does not separate when lifted.

[0051] The handle 502 is sleeved on the end of the power output shaft 304. The spring plunger screw (not shown) is radially pressed against the positioning surface or positioning groove of the outer wall of the power output shaft 304 along the positioning hole 503 on the outer side wall of the handle 502, which further ensures the stability of the impeller 501 during rotation. Moreover, when maintenance is required, the handle 502 and the impeller 501 can be disassembled simply by loosening the spring plunger screw, which meets the design purpose of convenient disassembly and assembly.

[0052] In this embodiment, since the fixing nut 4 is located in the bottom area inside the inner cylinder assembly 1, and the power output shaft 304 passes through the inner cylinder assembly 1 axially and connects to the impeller assembly 5, the disassembly and assembly steps of the impeller assembly 5 need to be considered simultaneously when disassembling and assembling the inner cylinder assembly 1. The following description uses the installation process as an example; the disassembly process is the reverse of the installation process.

[0053] Power transmission component 3 pre-installation: Assemble and fix the mounting base 301 to the bottom of the outer cylinder assembly 2.

[0054] Installation and initial positioning of inner cylinder assembly 1: Insert inner cylinder assembly 1 axially from the upper opening of outer cylinder assembly 2, align the mounting hole at the bottom of inner cylinder assembly 1 with the bushing 302 and move it down, so that the mounting hole of inner cylinder assembly 1 fits around the outer circumference of bushing 302, until the bottom of inner cylinder assembly 1 axially abuts against the annular shoulder 303, thus achieving the initial positioning of inner cylinder assembly 1.

[0055] Installation and axial tightening of the fixing nut 4: Insert the fixing nut 4 axially into the central area of ​​the bottom of the inner cylinder assembly 1 from inside the inner cylinder assembly 1, aligning its threaded section with the external thread of the bushing 302. Use the sleeve portion 601 of the wrench 6 to fit around the outer periphery of the fixing nut 4, ensuring that the polygonal inner hole of the sleeve portion 601 mates with the outer contour of the fixing nut 4. Ensure that the power output shaft 304 passes through the clearance channel 603 of the wrench 6, preventing interference between the wrench 6 and the power output shaft 304 during rotation. Rotate the wrench 6 in the tightening direction of the fixing nut 4, gradually pushing the fixing nut 4 downwards axially. When the axial elastic abutment component on the mounting end face 401 of the fixing nut 4 contacts the inner surface of the inner cylinder assembly 1 and undergoes elastic compression deformation, the fixing nut 4 begins to apply a stable axial tightening force to the inner cylinder assembly 1. Continue tightening to the predetermined tightening torque, firmly pressing the inner cylinder assembly 1 onto the annular shoulder 303, while the elastic abutment component is within its effective elastic working range to compensate for assembly errors and improve tightening reliability.

[0056] Installation of the impeller assembly 5: Align the central inner hole of the impeller 501 with the splined section on the upper part of the power output shaft 304, and axially insert the impeller 501 into the power output shaft 304 from top to bottom, so that it is synchronized with the power output shaft 304 in the circumferential direction through spline engagement. Install the handle 502 above the impeller 501 and fix it to the impeller 501, so that the handle 502 and the impeller 501 form an integral structure. Then, pass the spring plunger screw through the outer side of the handle 502, align it with the positioning surface or positioning groove of the power output shaft 304, and tighten it so that its end radially presses against the power output shaft 304, thereby reliably positioning the handle 502 on the power output shaft 304 and further securing the impeller 501.

[0057] Once installed, when the washing machine is running, the power output shaft 304 can drive the impeller 501 to rotate. The impeller 501 can rotate independently or drive the inner drum assembly 1 to rotate. The installation structure between the impeller 501 and the inner drum assembly 1 is not an innovation of this application and will not be described in detail here. It can be implemented with reference to existing technologies.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A washing machine with a convenient inner drum installation structure, characterized in that, The washing machine includes an inner drum assembly (1), an outer drum assembly (2), and a power transmission component (3). The power transmission component (3) includes a mounting base (301) fixed to the outer drum assembly (2) and a bushing (302) rotatably disposed in the mounting base (301). The outer wall of the bushing (302) is provided with an annular shoulder (303). The inner drum assembly (1) is sleeved on the bushing (302) and abuts against the annular shoulder (303). A fixing nut (4) is fastened from the inside of the inner drum assembly (1) to the bushing (302), thereby axially pressing and fixing the inner drum assembly (1) onto the annular shoulder (303).

2. The washing machine with a convenient inner drum installation structure according to claim 1, characterized in that, An axial elastic abutment component is provided on the mounting end face (401) of the fixing nut (4); when the fixing nut (4) is tightened, the axial elastic abutment component protrudes axially and elastically abuts against the surface of the inner cylinder assembly (1) to form an elastic pressing fit between the fixing nut (4) and the inner cylinder assembly (1).

3. The washing machine with a convenient inner drum installation structure according to claim 2, characterized in that, The mounting end face (401) of the fixing nut (4) is provided with a mounting groove, and the sealing ring (402) is embedded in the mounting groove; when the fixing nut (4) is tightened, the sealing ring (402) abuts against and presses against the inner cylinder assembly (1) and undergoes elastic deformation.

4. The washing machine with a convenient inner drum installation structure according to claim 2, characterized in that, The mounting end face (401) of the fixing nut (4) is provided with a plurality of accommodating blind holes, the opening of the accommodating blind holes having an inwardly narrowing limiting edge; a compression spring and a ball (403) are installed in the accommodating blind holes, the ball (403) protruding from the limiting edge under the elastic force of the compression spring; when the fixing nut (4) is tightened, the ball (403) abuts against and presses against the inner cylinder assembly (1), and the compression spring undergoes elastic deformation.

5. The washing machine with a convenient inner drum installation structure according to claim 1, characterized in that, The power transmission component (3) also includes a power output shaft (304) that is rotatably disposed in the bushing (302) for driving the impeller assembly (5) of the washing machine to rotate; the upper end of the power output shaft (304) extends out of the bushing (302).

6. The washing machine with a convenient inner drum installation structure according to claim 5, characterized in that, The washing machine is equipped with a wrench (6) for removing and installing the fixing nut (4); the wrench (6) includes a sleeve (601) for sleeved on the outside of the fixing nut (4) and a handle (602) fixed to the sleeve (601); a clearance channel (603) is provided between the top wall of the sleeve (601) and the handle (602); when the wrench (6) drives the fixing nut (4) to rotate, the power output shaft (304) passes through the clearance channel (603).

7. The washing machine with a convenient inner drum installation structure according to claim 5, characterized in that, The impeller assembly (5) includes an impeller (501) sleeved on the power output shaft (304) and a handle (502) located above the impeller (501); the inner hole of the impeller (501) is splined with the power output shaft (304) so ​​that the impeller (501) rotates synchronously with the power output shaft (304); the handle (502) and the impeller (501) are axially fastened together by a fastener.

8. The washing machine with a convenient inner drum installation structure according to claim 7, characterized in that, The handle (502) is sleeved on the shaft end of the power output shaft (304), and the spring plunger screw passes through the side wall of the handle (502) and abuts against the power output shaft (304) radially.

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