Washing machine upper cover structure and washing machine

By using a detachable rotating shaft to connect the front and rear parts in the upper cover structure of the pulsator washing machine, quick assembly and convenient disassembly are achieved, solving the problems of time-consuming, labor-intensive and poor appearance in the existing technology, and improving user experience and aesthetics.

CN120719508APending Publication Date: 2025-09-30QINGDAO HAIER WASHING MASCH CO LTD +1
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Patent Information

Application Number
CN202410373505.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-03-29
Publication Date
2025-09-30

AI Technical Summary

Technical Problem

The foldable upper cover structure of the existing pulsator washing machine is time-consuming and labor-intensive to assemble and repair, and the joints have large seams, which affects the user experience and appearance.

Method used

A detachable hinge is used to connect the front and rear parts of the upper cover. The upper cover can be quickly assembled and conveniently disassembled through the screw connection of the horizontally extending hinge part and the fixed part. The hinge is hidden under the upper cover to improve the aesthetics.

Benefits of technology

The quick assembly and convenient disassembly of the upper cover are realized, which improves the user experience and aesthetics. At the same time, the opening height of the upper cover is reduced, and the stability and maintenance convenience after assembly are enhanced.

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Abstract

The invention provides an upper cover structure of a washing machine. The upper cover structure comprises an upper cover front part and an upper cover rear part which are arranged front and back; a rotating shaft piece is detachably installed on the upper cover rear portion, and the rotating shaft piece and the upper cover front portion can be connected in an inserted mode in a relative rotating mode around a shaft and used for rotary connection between the upper cover front portion and the upper cover rear portion in a foldable and unfolded mode. By means of the arrangement, the upper cover structure of the washing machine is formed by splicing the front part and the rear part which can be folded and rotate around the shaft, and the dual use effects that the upper cover structure of the washing machine can be folded and stored to reduce the opening height and buckled after being unfolded to correspondingly seal a clothes putting opening in the top of clothes of the washing machine are achieved; meanwhile, the two parts are in transfer connection through the rotating shaft piece, and the assembling convenience of the folding upper cover structure of the washing machine is greatly improved. Meanwhile, the device is simple in structure, remarkable in effect and capable of being popularized and used.
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Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and in particular relates to a foldable upper cover structure of a washing machine. The present invention also introduces a washing machine equipped with the upper cover structure. Background Art

[0002] Existing pulsator washing machines typically consist of a main body, an outer tub suspended within the main body, and a rotatable inner tub enclosed within the outer tub. Driven by a motor, the inner tub rotates about a vertical axis, creating a water flow within the tub to wash the clothes. An annular control panel is located above the top of the main body, above the opening of the outer tub. The inner circumference of the annular control panel forms the clothing loading port, allowing the user to load and unload clothes from the tub. The annular control panel is hollow, providing space for the washing machine's electrical components and waterway, enabling the electrical control of the washing machine's internal components.

[0003] A washing machine cover is generally installed above the control panel of the washing machine. The existing pulsator washing machine cover structures include integral cover type, folding cover type, etc. In order to facilitate user use or save the upper space occupied by the washing machine door, most of the cover structures are set to be folding.

[0004] For example, the applicant's previous application disclosed a washing machine comprising a housing, a washing tub mounted within the housing, a tray forming an opening for placing and removing clothing, and a foldable upper cover assembly consisting of an upper cover A and an upper cover B. The inner surfaces of the two upper covers are connected on one side, each having a shaft seat A and a shaft seat B for inserting a pin, which are aligned after assembly. The pin is inserted into shaft seats A and B, connecting the upper covers A and B to form the upper cover assembly. A barb is provided on the outer edge of shaft seat A at one end of one of the upper covers, and the aperture at the outer edge of shaft seat A at the opposite end is smaller than the diameter of the pin, ensuring that the pin is well positioned after insertion and prevented from falling out.

[0005] However, the foldable upper cover structure of the above-mentioned existing pulsator washing machines uses a through shaft to hinge the two upper cover parts together, so that the two upper cover parts need to be accurately positioned during assembly so that the longer through shaft can pass through the axial holes of the two parts in sequence. The installation process is not only time-consuming and labor-intensive; moreover, when the upper cover structure is repaired or the folding hinge structure is replaced in the later stage, the through shaft needs to be disassembled, and the disassembly process is more cumbersome, which greatly affects the user experience; in addition, the joints of the two upper cover structures using the above structure have large seams, which affects the user's perception.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a washing machine upper cover structure to achieve the purpose of folding, storing and unfolding the upper cover; at the same time, the present invention also provides a washing machine upper cover structure to achieve the purpose of quick assembly and convenient assembly of the washing machine upper cover structure.

[0008] In order to achieve the above-mentioned purpose, the basic concept of the technical solution adopted by the present invention is:

[0009] A washing machine cover structure includes: a front cover portion 1 and a rear cover portion 2 arranged front and back; a rotating shaft 3 is detachably mounted on the rear cover portion 1, and the rotating shaft 3 is plug-connected to the front cover portion 1 so as to be rotatable relative to the axis, and is used for the foldable and unfoldable rotating connection between the front cover portion 1 and the rear cover portion 2.

[0010] Furthermore, the rotating shaft member 3 is provided with a horizontally extending rotating shaft portion 31, the front side of the upper cover front portion 1 is provided with an axial hole portion 11, the axial hole portion 11 is provided with an axial hole extending horizontally in the axial left and right directions, and the rotating shaft portion 31 is coaxially inserted into the axial hole 11; the rotating shaft member 3 is also provided with a fixing portion 32, which is detachably fixed to the front side of the upper cover rear portion 2.

[0011] Furthermore, the fixing portion 32 is semi-cylindrical with a vertical section arranged toward the rear side and an axis extending horizontally to the left and right; a mating assembly portion 21 is provided on the front side of the rear portion 2 of the upper cover, and the mating assembly portion 21 is semi-cylindrical with a vertical section arranged toward the front side and an axis extending horizontally to the left and right; the semi-cylindrical vertical section of the fixing portion 32 is in relative fit contact with the semi-cylindrical vertical section of the mating assembly portion 21, and is detachably connected via screws 34.

[0012] Furthermore, a screw column 33 protruding outward is provided on the vertical cross-section of the semi-cylindrical fixing portion 32, and a matching mounting through-hole 13 is provided on the semi-cylindrical vertical cross-section of the mating assembly portion 21; when the fixing portion 32 and the mating assembly portion 21 are relatively fitted together, the screw column 33 is correspondingly inserted into the mounting through-hole 13, and the screw 34 is screwed into the mounting through-hole 13 from back to front, and is threadedly engaged with the screw hole on the screw column 33 for fixing.

[0013] Furthermore, the front portion 1 of the upper cover and the rear portion 2 of the upper cover are connected via a plurality of rotating shafts 3; the rotating shaft portions 31 of some rotating shafts 3 are inserted into the corresponding shaft holes 11 from left to right, and the rotating shaft portions 31 of some rotating shafts 3 are inserted into the corresponding shaft holes 11 from right to left.

[0014] Furthermore, the shaft portion 31 of the leftmost shaft member 3 is inserted into the corresponding shaft hole portion 11 from left to right, and the shaft portion 31 of the rightmost shaft member 3 is inserted into the corresponding shaft hole 11 from right to left.

[0015] Furthermore, the rotating shaft 3, the shaft hole portion 11, and the mating assembly portion 21 are all arranged at the junction of the upper cover front portion 1 and the upper cover rear portion 2, and are all arranged below the upper cover structure, so that when the upper cover structure is opened, the upper cover front portion 1 and the upper cover rear portion 2 are in contact to form a flat upper surface of the upper cover.

[0016] Furthermore, a reinforcement structure 13 is provided at the lower rear side of the upper cover front portion 1 . The reinforcement structure 13 is provided between adjacent shaft holes 31 . The reinforcement structure 13 is composed of grid ribs protruding downward from the upper cover front portion 1 .

[0017] Furthermore, the rear part 2 of the upper cover and the front part 1 of the upper cover respectively include a frame 5 arranged on the outer periphery, and the two frames 5 are assembled to form a ring shape; the frames 5 of the rear part 2 of the upper cover and the front part 1 of the upper cover are respectively covered with a cover plate 6, and the cover plate 6 is provided with a decorative coating of the same color and texture as the frame 5.

[0018] Furthermore, a downwardly recessed groove is provided on the front portion 1 of the upper cover, and a shielding portion for partially shielding the opening of the groove is provided at the opening of the groove, so as to form a handle 4 for the user to open and close the upper cover structure.

[0019] The present invention also introduces a washing machine equipped with any of the above-mentioned upper cover structures of the washing machine.

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

[0021] Through the above-mentioned arrangement, the present invention makes the upper cover structure of the washing machine consist of two front and rear parts that can be folded and rotated around an axis, realizing the dual use effect of the upper cover structure of the washing machine being foldable for storage to lower the opening height and buckled after unfolding to close the clothing loading port on the top of the washing machine; at the same time, the two parts are connected via a rotating shaft, which greatly improves the assembly convenience of the foldable upper cover structure of the washing machine, and makes it possible to quickly disassemble and replace the front and rear parts of the foldable upper cover, which is a significant technical progress that greatly improves the convenience of maintenance and use.

[0022] At the same time, the present invention has a simple structure and significant effects, and is suitable for popularization and application.

[0023] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0025] Figure 1 Schematic diagram of the structure of the upper cover of the washing machine according to an embodiment of the present invention;

[0026] Figure 2 Schematic diagram of the top view of the upper cover structure of the washing machine according to an embodiment of the present invention;

[0027] Figure 3 In the embodiment of the present invention Figure 2 AA cross-sectional structural diagram of the washing machine upper cover structure;

[0028] Figure 4 In the embodiment of the present invention Figure 2 BB cross-sectional structural diagram of the washing machine upper cover structure;

[0029] Figure 5 In the embodiment of the present invention Figure 3 Schematic diagram of the CC cross-section structure of the washing machine upper cover structure;

[0030] Figure 6 and Figure 7 Schematic diagram of the exploded structure of the washing machine upper cover structure from different perspectives according to an embodiment of the present invention.

[0031] Description of the main components in the figure:

[0032] 1. Front of upper cover; 2. Rear of upper cover; 3. Rotating shaft; 4. Handle; 5. Frame; 6. Cover plate; 11. Axis hole; 12. Mounting groove; 13. Reinforcement component; 21. Fitting assembly part; 22. Stop rib; 23. Mounting through hole; 31. Rotating shaft; 32. Fixing part; 33. Screw column; 34. Screw.

[0033] 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 rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] 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.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] like Figures 1 to 7 As shown, an embodiment of the present invention discloses an upper cover structure of a washing machine, including an upper cover front portion 1 and an upper cover rear portion 2 arranged front and back; a rotating shaft 3 is detachably mounted on the upper cover rear portion 2, and the rotating shaft 3 is plug-connected to the upper cover front portion 2 so as to be rotatable relative to the axis, so as to connect the upper cover front portion 1 and the upper cover rear portion 2 so as to be foldable and unfoldable.

[0038] Through the above arrangement, the upper cover structure of the washing machine is composed of two front and rear parts that can be folded and rotated around the axis, achieving the dual use effect of the upper cover structure of the washing machine being foldable for storage to lower the opening height and buckled after unfolding to close the clothing loading port on the top of the washing machine; at the same time, the two parts are connected via the rotating shaft 3, which greatly improves the assembly convenience of the foldable upper cover structure of the washing machine, and makes it possible to quickly disassemble and replace the front and rear parts of the foldable upper cover, greatly improving the convenience of maintenance and use.

[0039] In an embodiment of the present invention, a horizontally extending shaft portion 31 is provided on the shaft member 3, and an axial hole portion 11 is provided on the rear side of the upper cover front portion 1. The axial hole portion 11 is provided with an axial hole extending horizontally in the axial left and right directions, and the shaft portion 31 is coaxially inserted into the axial hole; the shaft member 3 is also provided with a fixing portion 32, which is detachably fixed to the front side of the upper cover rear portion 2.

[0040] In this embodiment of the present invention, the fixing portion 32 is semi-cylindrical, and the front side of the upper cover rear portion 2 is provided with a mating assembly portion 21. The mating assembly portion 21 is semi-cylindrical with a vertical section facing the front, and its axis extending horizontally to the left and right. The semi-cylindrical vertical section of the fixing portion 32 and the semi-cylindrical vertical section of the mating assembly portion 21 are relatively in contact with each other and are removably connected via screws 34. The planar sidewalls formed by the vertical sections of the two semi-cylindrical shapes are in corresponding contact with each other, and the arcuate sidewalls of the two semi-cylindrical shapes are connected end to end to form a complete cylinder extending horizontally to the left and right of the axis. The axis of the enclosed cylinder is coaxial with the rotation shaft portion 31, and the radial dimension of the enclosed cylinder is larger than the radial dimension of the rotation shaft portion 31.

[0041] In an embodiment of the present invention, in order to conceal the installation of the rotating shaft 3, an axial hole portion 11 is provided at the lower rear portion of the upper cover front portion 1; and a quarter-cylindrical mounting groove 12 that is recessed upward is provided on the lower side wall of the upper cover front portion 1 on the left or right side of the axial hole portion 11. The semi-cylindrical fixing portion 32 is provided in the above-mentioned quarter-cylindrical mounting groove 12, and the outer peripheral side wall of the semi-cylindrical fixing portion 32 is spaced apart from the groove wall of the mounting groove 12 in the same shape, so as to utilize the groove wall to provide a limit for the relative rotational movement of the fixing portion 32.

[0042] like Figures 1 to 7 As shown, in the embodiment of the present invention, a screw column 33 protruding outward is provided on the semi-cylindrical vertical section of the fixing portion 32, and a matching mounting through hole 23 is provided on the semi-cylindrical vertical section of the mating assembly portion 21. When the fixing portion 32 and the mating assembly portion 21 are relatively fitted together, the screw column 33 is correspondingly inserted into the mounting through hole 23, and the screw 34 is screwed into the mounting through hole 23 from front to back and is threadedly engaged with the screw hole on the screw column 33 for fixing.

[0043] In the embodiment of the present invention, the mating assembly portion 21 is arranged on the lower side wall of the front side of the upper cover rear portion 2, and the upper side of the semi-cylindrical mating assembly portion 21 is arranged flush with the top surface of the upper cover rear portion 2, so that the top surface of the upper cover front portion 1 and the upper cover rear portion 2 forms a complete flat surface after the upper cover front portion 1 and the upper cover rear portion 2 are opened; at the same time, the middle part of the mating assembly portion 21 is provided with a mounting through hole 23 that is opened through the front and back. The mounting through hole 23 is arranged horizontally and is located on the lower side of the upper cover rear portion 2, so that the screw 34 can be inserted horizontally into the mounting through hole 23 from back to front and be threadedly engaged with the internal thread in the screw hole coaxially arranged on the screw column 33 to be fixed.

[0044] Preferably, in order to further facilitate the assembly of the fixing portion 32 of the rotating shaft member 3 and the mating assembly portion 21 of the upper cover rear portion 2, a forward-protruding shielding rib 22 is provided on the upper cover rear portion 2 at one end of the fixing portion 32 relatively away from the corresponding axial hole portion 11. The shielding rib 22 is a semicircular convex rib plate that is parallel to the end face of the semi-cylindrical fixing portion 32, so that the shielding rib 22 can position and stop the rotating shaft member 3 in the axial direction when the two are assembled, thereby facilitating the installation of the rotating shaft member 3 and the upper cover rear portion 2.

[0045] like Figures 1 to 7 As shown, in this embodiment of the present invention, the front portion 1 and the rear portion 2 of the upper cover are connected via multiple rotating shafts 3. The rotating shafts 31 of some rotating shafts 3 are inserted into corresponding axial holes from left to right, while the rotating shafts 31 of some rotating shafts 3 are inserted into corresponding axial holes from right to left. This arrangement allows the rotating shafts inserted in opposite directions to position the hinged front and rear portions of the upper cover in the left-right direction, thereby preventing the front and rear portions from axially falling off.

[0046] In this embodiment of the present invention, the shaft portion 31 of the leftmost shaft member 3 is inserted from left to right into the corresponding shaft hole, and the shaft portion 31 of the rightmost shaft member 3 is inserted from right to left into the corresponding shaft hole. Simultaneously, a third shaft member 3 is provided at the center, and the shaft portion 31 of the third shaft member 3 can be inserted into the corresponding shaft hole from right to left or from left to right. By inserting the shaft portions 31 of the left and right shaft members 3 into the corresponding shaft holes toward the center, the left-right sway between the hinged upper cover front portion 1 and upper cover rear portion 2 can be reduced, greatly improving the pivoting stability of the assembled upper cover.

[0047] In the embodiment of the present invention, the rotating shaft 3, the shaft hole 11, the fixing portion 32, and the fitting portion 21 are all disposed at the junction of the upper cover front portion 1 and the upper cover rear portion 2, and are all disposed below the upper cover. When the upper cover is opened, the upper cover front portion 1 and the upper cover rear portion 2 come into contact to form a flat upper cover surface, and the hinge assembly is therefore disposed on the underside of the upper cover. Through this arrangement, the hinge assembly of the two parts of the upper cover is concealed downward, thereby achieving the effect of concealing and storing the hinge assembly after the upper cover structure is opened and closed, effectively improving the aesthetics and reliability of the upper cover structure.

[0048] In this embodiment of the present invention, a reinforcement structure 13 is provided at the lower rear side of the upper cover front portion 1. The reinforcement structure 13 is located between adjacent shaft holes 11 and is formed by a grid of ribs protruding downward from the upper cover front portion 1. By providing the reinforcement structure 13, which is composed of more than just ribs on the rear side of the upper cover front portion 1, the ribs are utilized to reinforce the side portion between adjacent shaft holes 11, effectively improving the structural strength of the connection between the rotating shaft portion 31 and the shaft hole portion 11 and preventing damage to the shaft hole caused by excessive torsional force during relative rotation between the upper cover front portion 1 and the upper cover rear portion 2.

[0049] like Figures 1 to 7 As shown, in this embodiment of the present invention, the rear portion 2 of the upper cover includes an annular frame 5, with a cover plate 6 installed in the hollow portion of the annular frame 5. The cover plate 6 is provided with a decorative coating of the same color and texture as the annular frame 5. Preferably, the upper surface of the front portion 1 of the upper cover is made of the same material and color as the annular frame 5, so that when opened, the upper surfaces of the front portion 1 and the rear portion 2 of the upper cover form a complete outer surface with the same texture and color, thereby greatly enhancing the aesthetic appearance of the upper cover structure. Further preferably, the outer periphery of the front portion 1 of the upper cover is also provided with an annular frame 5, with the cover plate 6 installed on the annular frame 5. Furthermore, the outer periphery frames 5 of the front and rear portions of the upper cover are respectively semi-annular with opposite openings and equal widths, so that when the upper cover structure is opened, the two portions are spliced ​​together to form a single annular shape. Furthermore, the frames 5 of the front and rear portions 1 and 2 of the upper cover are all made of the same material and color, and the upper side of the cover plate 6 is also coated with the same material and color, further enhancing the aesthetic appearance of the upper cover structure.

[0050] In an embodiment of the present invention, a downwardly recessed groove is provided on the front portion 1 of the upper cover, and a shielding portion for partially blocking the opening is provided at the opening of the groove, so that the groove constitutes a handle 4 for the user to open and close the upper cover; preferably, the rear side of the opening of the groove constituting the handle 4 is covered by the shielding portion, so that the user can smoothly extend his hand from front to back to open and close the upper cover.

[0051] The present invention also discloses a washing machine comprising a housing with an annular control panel mounted on top; an inner tub mounted within the housing, with an open upper end and a closed lower end, and a vertically arranged axis. The inner tub is typically mounted within a coaxially arranged outer tub. The inner tub is provided with dewatering holes extending through the tub wall to allow water to cross-flow between the inner and outer tubs. Furthermore, a drive motor is mounted at the lower portion of the outer tub. The drive motor is connected directly or via a reduction clutch to a rotating shaft extending through the bottom of the outer tub. The rotating shaft extends into the outer tub and is connected to the inner tub and / or a stirring element within the inner tub. The stirring element may be a pulsator, a stirring column, or other conventional structure. Rotation of the inner tub and / or the stirring element stirs the water in the outer tub, forming a wash water flow, thereby agitating and washing the clothes in the inner tub. Furthermore, the outer tub may be suspended from the housing via a suspension rod or other vibration-damping member to reduce vibration and noise during the washing process.

[0052] The above-mentioned upper cover structure is installed on the upper side of the annular control disk seat, and the rear side of the upper cover rear part of the upper cover structure is hinged to the rear side of the control disk seat so as to be rotatable around a horizontal axis; the upper cover rear part 2 and the upper cover front part 1 of the upper cover structure can be flipped upward to open the clothing loading port of the control disk seat, and the upper cover rear part 2 and the upper cover front part 1 opened to a vertical position can be folded forward and backward for storage using a rotating shaft member to reduce the height of the upper cover structure after opening to about half of the height when opened, thereby significantly reducing the height of the upper cover structure after opening.

[0053] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A washing machine cover structure, comprising: A front cover portion (1) and a rear cover portion (2) are arranged front and back; It is characterized by: A rotating shaft (3) is detachably mounted on the upper cover rear portion (1), and the rotating shaft (3) is plug-connected to the upper cover front portion (1) so as to be relatively rotatable about an axis, and is used for folding and unfolding the upper cover front portion (1) and the upper cover rear portion (2) so as to be rotatably connected.

2. The upper cover structure of the washing machine according to claim 1, characterized in that: The rotating shaft member (3) is provided with a horizontally extending rotating shaft portion (31), the front side of the upper cover front portion (1) is provided with an axial hole portion (11), the axial hole portion (11) is provided with an axial hole extending horizontally in the axial left and right directions, and the rotating shaft portion (31) is coaxially inserted into the axial hole (11); The rotating shaft (3) is further provided with a fixing portion (32), and the fixing portion (32) is detachably fixedly connected to the front side of the upper cover rear portion (2).

3. The upper cover structure of the washing machine according to claim 2, characterized in that: The fixing portion (32) is in the shape of a semi-cylinder with a vertical section arranged toward the rear and an axis extending horizontally in left and right directions; A matching assembly portion (21) is provided on the front side of the upper cover rear portion (2), and the matching assembly portion (21) is in the shape of a semi-cylinder with a vertical section arranged toward the front and an axis extending horizontally in left and right directions; The semi-cylindrical vertical section of the fixing portion (32) is in relative contact with the semi-cylindrical vertical section of the matching assembly portion (21) and is detachably connected via screws (34).

4. The upper cover structure of the washing machine according to claim 3, characterized in that: A screw column (33) protruding outward is provided on the vertical cross section of the semi-cylindrical fixing portion (32), and a matching mounting through hole (13) is provided on the semi-cylindrical vertical cross section of the matching assembly portion (21); when the fixing portion (32) and the matching assembly portion (21) are relatively fitted, the screw column (33) is correspondingly inserted into the mounting through hole (13), and the screw (34) is screwed into the mounting through hole (13) from back to front and is threadedly engaged with the screw hole on the screw column (33) for fixing.

5. The upper cover structure of the washing machine according to any one of claims 1 to 4, characterized in that: The upper cover front portion (1) and the upper cover rear portion (2) are connected via a plurality of rotating shafts (3); The rotating shaft portion (31) of a part of the rotating shaft member (3) is inserted into the corresponding shaft hole portion (11) from left to right, and the rotating shaft portion (31) of a part of the rotating shaft member (3) is inserted into the corresponding shaft hole portion (11) from right to left.

6. The upper cover structure of the washing machine according to claim 5, characterized in that: The shaft portion (31) of the leftmost shaft member (3) is inserted into the corresponding shaft hole portion (11) from left to right, and the shaft portion (31) of the rightmost shaft member (3) is inserted into the corresponding shaft hole (11) from right to left.

7. The upper cover structure of the washing machine according to any one of claims 1 to 6, characterized in that: The rotating shaft (3), the shaft hole (11), and the matching assembly (21) are all arranged at the junction of the upper cover front portion (1) and the upper cover rear portion (2), and are all arranged below the upper cover structure, so that when the upper cover structure is opened, the upper cover front portion (1) and the upper cover rear portion (2) are in contact with each other to form a flat upper cover surface.

8. The upper cover structure of a washing machine according to any one of claims 1 to 7, characterized in that: A reinforcement structure (13) is provided below the rear side of the upper cover front portion (1). The reinforcement structure (13) is provided between adjacent shaft hole portions (31). The reinforcement structure (13) is formed by grid ribs protruding downward from the upper cover front portion (1).

9. The upper cover structure of a washing machine according to any one of claims 1 to 8, characterized in that: The upper cover rear portion (2) and the upper cover front portion (1) respectively include a frame (5) arranged on the outer periphery, and the two frames (5) are assembled to form a ring shape; the frames (5) of the upper cover rear portion (2) and the upper cover front portion (1) are respectively covered with a cover plate (6), and the cover plate (6) is provided with a decorative coating with the same color and texture as the frame (5).

10. A washing machine, characterized in that: An upper cover structure of a washing machine is installed with any one of claims 1 to 9.