Upper cover structure and washing machine

Abstract

The invention discloses an upper cover structure and a washing machine. The upper cover structure comprises an upper cover and a damper, a mounting groove is formed in the rotating side of the upper cover, the damper is fixed in the mounting groove through a positioning structure, and the positioning structure comprises a clamping groove allowing the non-rotating end of the damper to be clamped in and a mounting hole fixedly connected with the inner wall of the mounting groove; the non-rotating end of the damper is clamped through the clamping groove of the positioning structure, and the non-rotating end of the damper is fixedly connected to the inner wall of the mounting groove through the mounting hole of the positioning structure, so that the mounting groove can be suitable for mounting dampers of different models, and the dampers can be flexibly mounted; therefore, the assembling efficiency between the damper and the upper cover is improved.

Description

Technical Field

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

[0002] Washing machines are cleaning appliances invented by people in order to save labor. They use electrical energy to produce mechanical action to wash clothes. With the improvement of living standards, washing machines have spread to tens of millions of households, providing convenience to people's lives.

[0003] The pulsator washing machine in the prior art is provided with a clothing inlet for clothing to be put in, and an upper cover is hinged at the clothing inlet, and the upper cover can open or close the clothing inlet. A damper is usually provided on the upper cover, and the damper usually includes two parts, a stator and a rotor that cooperates with the stator damping. When assembling, the damper needs to be placed in a mounting groove provided on the upper cover, and one end of the rotor is fixedly connected to the washing machine body. For example, the damper includes a power-assisted damper and a non-power-assisted damper, and an assembly hole is provided on the mounting groove, and an assembly hole fixedly connected to the assembly hole is provided on the stator of the power-assisted damper. Because the power-assisted damper and the non-power-assisted damper are dampers of different models, the assembly hole of the above-mentioned mounting groove can only be assembled with the power-assisted damper.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an upper cover structure and a washing machine. The non-rotating end of the damper is clamped by utilizing the clamping groove of the positioning structure and the non-rotating end of the damper is fixedly connected to the inner wall of the mounting groove by utilizing the mounting hole of the positioning structure, so that the mounting groove can be suitable for installing dampers of different models and the damper can be flexibly installed, thereby improving the assembly efficiency between the damper and the upper cover.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] The present invention provides an upper cover structure, comprising an upper cover and a damper. A mounting groove is provided on the rotating side of the upper cover, and the damper is fixed in the mounting groove via a positioning structure. The positioning structure comprises a clamping groove for the non-rotating end of the damper to be clamped in and a mounting hole fixedly connected to the inner wall of the mounting groove.

[0008] Furthermore, the positioning structure includes a positioning body, which is a square block structure. One side of the positioning body is recessed to form a clamping groove with a notch facing the non-rotating end of the damper, and the inner wall of the clamping groove abuts against the outer periphery of the non-rotating end of the damper.

[0009] Furthermore, the interior of the positioning body is hollow to form a cavity, and the side walls of the cavity on the left and right sides of the clamping groove are respectively opened, and a plurality of intersecting reinforcing ribs are arranged in the cavity, and the outer wall of the clamping groove is connected to the reinforcing ribs.

[0010] Furthermore, the snap-in groove is square, and a first reinforcing rib and a second reinforcing rib, which are square plate-like structures, are provided in the cavity. The first reinforcing rib extends in the front-to-back direction of the snap-in groove, and the second reinforcing rib extends in the up-and-down direction of the snap-in groove. A square notch is provided on the first reinforcing rib, and the snap-in groove is embedded in the square notch. The bottom wall and left and right side walls of the snap-in groove are respectively fitted and connected with the corresponding side walls of the square notch.

[0011] Furthermore, the middle part of the first reinforcing rib is arranged to intersect with the middle part of the second reinforcing rib, and the first reinforcing rib and the second reinforcing rib divide the interior of the cavity into a number of independent sub-cavities. The snap-in groove is arranged in the middle part of the side wall of the cavity, and the snap-in groove has an upper part and a lower part respectively located at the upper and lower parts of the notch, and the upper part and the lower part respectively extend into two sub-cavities distributed in the upper and lower directions of the snap-in groove, and are symmetrically arranged with the square notch as the center.

[0012] Furthermore, an upper rib is provided on the outer side wall of the cavity at the top of the clamping slot. The upper rib is a square plate-like structure. The upper rib extends in the front-to-back direction of the clamping slot. The mounting hole is provided on the upper rib and passes through the rib in the left-right direction of the clamping slot.

[0013] Furthermore, a first cylindrical rib is provided on the side wall of the mounting groove, and an opening is provided at one end of the first rib facing the damper. The inner periphery of the first rib forms an assembly hole that is screwed to the mounting hole. The outer periphery of the first rib is connected to a plurality of reinforcing ribs distributed along the outer periphery of the first rib. The side wall of the upper rib located on the left side of the clamping groove abuts against the open end of the first rib, and the outer side wall of the cavity located at the top of the clamping groove abuts against the outer periphery of the first rib.

[0014] Furthermore, a lower rib is provided on the outer side wall of the cavity at the bottom of the clamping groove, and the lower rib extends in the front-to-back direction of the clamping groove. The side wall of the installation groove is provided with an insertion groove, and the lower rib is inserted into the insertion groove in the up-down direction of the clamping groove.

[0015] Furthermore, a second convex rib is provided on the side wall of the installation groove, and the second convex rib is recessed to form a plug-in groove with the notch facing the lower convex rib;

[0016] Preferably, the damper is a columnar structure, and the damper is divided into a first damping section and a second damping section located at the non-rotating end of the damper in the front-to-rear direction of the snap-in groove. The radial dimension of the first damping section is larger than the radial dimension of the second damping section. The second damping section is snapped into the snap-in groove, and the end wall of the first damping section is abutted against the positioning body on the outer periphery of the snap-in groove.

[0017] The present invention further provides a washing machine, wherein a clothing loading port is arranged on the top of the washing machine, and an upper cover structure provided by the above technical solution is hingedly connected to the clothing loading port.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0019] By utilizing the clamping groove of the positioning structure to clamp the non-rotating end of the damper and utilizing the mounting hole of the positioning structure to fix the non-rotating end of the damper to the inner wall of the mounting groove, the mounting groove can be used to install dampers of different models and the damper can be flexibly installed, thereby improving the assembly efficiency between the damper and the upper cover.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0022] Figure 1 is a structural schematic diagram of an upper cover structure provided by an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A magnified view at point A;

[0024] Figure 3 It is a partial enlarged view of the exploded view of the upper cover structure provided by an embodiment of the present invention;

[0025] Figure 4 It is a structural schematic diagram of a positioning structure provided by an embodiment of the present invention.

[0026] Icon: 1-upper cover; 11-mounting slot; 111-first rib; 1111-assembly hole; 1121-reinforcement rib; 112-second rib; 1121-plug-in slot; 2-damper; 21-first damping section; 22-second damping section; 3-positioning structure; 31-positioning body; 311-clamping slot; 3111-upper part; 3112-lower part; 312-cavity; 3121-upper sub-cavity; 3122-lower sub-cavity; 3123-opening; 313-first reinforcement rib; 3131-square notch; 314-second reinforcement rib; 315-upper rib; 3151-mounting hole; 316-lower rib.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] 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.

[0029] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1-4 As shown, the present invention provides an upper cover structure, including an upper cover and a damper 2. The rotating side of the upper cover is provided with a mounting groove 11. The damper 2 is fixed in the mounting groove 11 through a positioning structure 3. The positioning structure 3 includes a snap-in groove 311 for the non-rotating end of the damper 2 to be snapped in and a mounting hole 3151 fixedly connected to the inner wall of the mounting groove 11.

[0032] In an embodiment of the present invention, the non-rotating end of the damper 2 is clamped by utilizing the clamping groove 311 of the positioning structure 3 and the non-rotating end of the damper 2 is fixedly connected to the inner wall of the mounting groove 11 by utilizing the mounting hole 3151 of the positioning structure 3, so that the mounting groove 11 can be suitable for installing dampers 2 of different models and the damper 2 can be flexibly installed, thereby improving the assembly efficiency between the damper 2 and the upper cover.

[0033] When in use, first insert the non-rotating end of the damper 2 into the clamping groove 311, and then fix the positioning structure 3 clamped with the non-rotating end of the damper 2 into the mounting groove 11 through the mounting hole 3151 to provide necessary damping for the turning over of the washing machine cover.

[0034] A clothing inlet is provided at the top of the pulsator washing machine, and an upper cover is hinged at the clothing inlet. The upper cover is flipped on the washing machine to open or close the clothing inlet, and the damper 2 is provided on the rotating side of the upper cover. By providing the damper 2 on the upper cover, the upper cover can be prevented from falling rapidly, and the upper cover can be closed smoothly, continuously and evenly. At the same time, by providing a positioning structure 3 in the mounting groove 11 for the installation of the damper 2, the installation of the damper 2 is simple, so that there is no need to manipulate the damper 2 to connect with the mounting groove 11 during installation, thereby making the installation of the damper 2 more flexible and easy to operate.

[0035] The damper 2 is a columnar structure. The damper 2 includes a shell and a damper shaft inserted into the shell. The shell is the stator part of the damper 2, and the damper shaft is the rotor part of the damper 2. The damper shaft rotates relative to the shell. The damper shaft is used to connect with the rotating shaft of the upper cover 1. The damper shaft protrudes outward from one end of the shell. The damper shaft is the rotating end of the damper 2. The non-rotating end is the end of the damper 2 opposite to the rotating end. The extension direction of the damper shaft is parallel to the extension direction of the mounting groove 11 and the rotating side of the upper cover 1. The mounting groove 11 is provided with an axial hole for the damper shaft to pass through the mounting groove 11. Furthermore, a mounting rib perpendicular to the extension direction of the mounting groove 11 is provided in the mounting groove 11, and the mounting rib is provided with an axial hole for the damper shaft to pass through.

[0036] Two mounting grooves 11 are provided on the rotating side of the upper cover, the two mounting grooves 11 are symmetrical about the center of the upper cover, and the openings are both facing the buckling side of the upper cover 1, and a damper 2 is respectively provided in each mounting groove 11, the two dampers 2 are symmetrical about the center of the upper cover 1, the two dampers 2 are respectively the first damper and the second damper, and the damping axis of the first damper and the damping axis of the second damper are respectively facing away from the center of the upper cover 1 and extend in opposite directions.

[0037] It should be noted that the up-down direction, left-right direction, and front-back direction of the snap-in slot 311 described below are all relative to the snap-in slot 311 when the upper cover is in the open state. When the upper cover is in the open state, the upper cover is in a vertical state.

[0038] In an embodiment of the present invention, the positioning structure 3 includes a positioning body 31, which is a square block structure. One side of the positioning body 31 is recessed to form a snap-in groove 311 with a notch facing the non-rotating end of the damper 2, and the inner wall of the snap-in groove 311 is against the outer periphery of the non-rotating end of the damper 2.

[0039] In the embodiment of the present invention, the positioning body 31 is a square block structure. Specifically, the positioning body 31 has a front side wall and a rear side wall located in the front-to-rear direction of the clamping groove 1121, a left side wall and a right side wall located in the left-to-right direction of the clamping groove 1121, and a top wall and a bottom wall located in the up-down direction of the clamping groove 1121. The location of the clamping groove 1121 is the front side wall of the positioning body 31. The wall surface of the front side wall of the positioning body 31 is a plane. The wall surface of the front side wall of the positioning body 31 is concave to form a clamping groove.

[0040] The non-rotating end of the damper 2 is adapted to the shape of the snap-in groove 311, so that the side walls on the outer periphery of the damper 2 are respectively fitted and abutted against the corresponding groove walls in the snap-in groove 311, so that the non-rotating end of the damper 2 is snapped in the snap-in groove 311, and the non-rotating end of the damper 2 is fixed on the positioning body 31.

[0041] Specifically, the damper 2 is a columnar structure, and the damper 2 is divided into a first damping section 21 and a second damping section 22 located at the non-rotating end of the damper 2 in the front-to-rear direction of the snap-in groove 311. The radial dimension of the first damping section 21 is greater than the radial dimension of the second damping section 22. The second damping section 22 is snapped into the snap-in groove 311, and the end wall of the first damping section 21 is abutted against the positioning body 31 on the outer periphery of the snap-in groove 311.

[0042] The damper 2 includes a first damping section 21, a second damping section 22 and a damping shaft portion exposed from the shell. The first damping section 21 is located between the damping shaft portion and the second damping section 22, which is equivalent to the shell being divided into the first damping section 21 and the second damping section 22. The second damping section 22 is in the shape of a square column, and the first damping section 21 is in the shape of a cylinder. The maximum radial dimension of the second damping section 22 is smaller than the maximum radial dimension of the first damping section 21, so that after the second damping section 22 is inserted into the snap-in groove 311, the end wall of the first damping section 21 can be abutted against the positioning body 31 on the outer periphery of the snap-in groove 311, thereby further enhancing the assembly strength between the damper 2 and the positioning body 31.

[0043] In the embodiment of the present invention, the interior of the positioning body 31 is hollow to form a cavity 312, and the side walls of the cavity 312 located on the left and right sides of the clamping groove 311 are respectively provided with openings 3123, and a plurality of intersecting reinforcing ribs are arranged in the cavity 312, and the outer wall of the clamping groove 311 is connected to the reinforcing ribs.

[0044] In the embodiment of the present invention, a plurality of reinforcing ribs are arranged inside the cavity 312, and the plurality of reinforcing ribs make the interior of the cavity 312 hollow. The arrangement of the reinforcing ribs can increase the structural strength of the positioning body 31;

[0045] The outer wall of the clamping groove 311 is connected to the reinforcing ribs, and the reinforcing ribs can provide reinforcing support to the clamping groove 311 and enhance the weighing capacity of the clamping groove 311, so that the clamping groove 311 can be clamped with a damper 2 of larger weight and size.

[0046] Specifically, the snap-in slot 311 is square, and the cavity 312 is provided with a first reinforcing rib 313 and a second reinforcing rib 314, which are respectively square plate-like structures. The first reinforcing rib 313 extends in the front-to-back direction of the snap-in slot 311, and the second reinforcing rib 314 extends in the up-and-down direction of the snap-in slot 311. A square notch 3131 is provided on the first reinforcing rib 313, and the snap-in slot 311 is embedded in the square notch 3131. The bottom wall and left and right side walls of the snap-in slot 311 are respectively fitted and connected with the corresponding side walls of the square notch 3131.

[0047] The square notch 3131 positions the clamping groove 311, increases the assembly strength between the clamping groove 311 and the first reinforcing rib 313, and improves the stability of the clamping groove;

[0048] The bottom wall and left and right side walls of the snap-in slot 311 are respectively connected to the corresponding side walls of the square notch 3131 , so that the snap-in slot 311 can be fully connected to the first reinforcing rib 313 , thereby comprehensively improving the strength of the snap-in slot 313 .

[0049] Preferably, the middle part of the first reinforcing rib 313 and the middle part of the second reinforcing rib 314 are arranged to intersect, and the first reinforcing rib 313 and the second reinforcing rib 314 divide the interior of the cavity 312 into a plurality of independent sub-cavities 312. The snap-in groove 311 is arranged in the middle part of the side wall of the cavity 312. The snap-in groove 311 has an upper part 3111 and a lower part 3112 respectively located at the upper and lower parts of the notch. The upper part 3111 and the lower part 3112 respectively extend into the two sub-cavities 312 distributed in the upper and lower directions of the snap-in groove 311, and are symmetrically arranged with the square notch 3131 as the center.

[0050] The first reinforcing rib 313 and the second reinforcing rib 314 extend in different directions in the cavity 312 , so that the strength of the positioning body 31 is multi-dimensional;

[0051] The first reinforcing rib 313 and the second reinforcing rib 314 are intersected to divide the interior of the cavity 312 into four completely identical sub-cavities. The upper part 3111 of the snap-in groove 311 extends into the upper sub-cavity 3121, and the lower part 3112 of the snap-in groove 311 extends into the lower sub-cavity 3122, so that the first reinforcing rib 313 can evenly distribute the strength in the snap-in groove 313, so that the abutment force of the damper 2 borne by the snap-in groove 313 can be evenly distributed in the snap-in groove 313.

[0052] It should be noted that two clip-on grooves are provided on the positioning body, and the two clip-on grooves are provided on opposite sides of the positioning body, so that one clip-on groove is a main clip-on groove and the other clip-on groove is an auxiliary clip-on groove. When there is a problem with the main clip-on groove, the auxiliary clip-on groove can be used to clip the non-rotating end of the damper.

[0053] In an embodiment of the present invention, an upper rib 315 is provided on the outer wall of the cavity 312 located at the top of the snap-in slot 311. The upper rib 315 is a square plate-like structure. The upper rib 315 extends in the front-to-back direction of the snap-in slot 311. The mounting hole 3151 is provided on the upper rib 315 and passes through the rib in the left-right direction of the snap-in slot 311.

[0054] In the embodiment of the present invention, specifically, a first cylindrical rib 111 is provided on the side wall of the mounting groove 11, and the first rib 111 is provided with an opening toward one end of the damper 2. The inner periphery of the first rib 111 forms an assembly hole 1111 which is screwed and assembled with the mounting hole 3151. The outer periphery of the first rib 111 is connected to a plurality of reinforcing ribs 1121 distributed along the outer periphery of the first rib 111. The side wall of the upper rib 315 located on the left side of the snap-in groove 311 abuts against the open end of the first rib 111, and the outer side wall of the cavity 312 located at the top of the snap-in groove 311 abuts against the outer periphery of the first rib 111.

[0055] There are two mounting holes 3151, which are distributed in the front-to-back direction of the clamping slot, so as to improve the connection strength between the positioning body 31 and the mounting slot 11;

[0056] In order to more conveniently fix the positioning body 31 on the mounting groove 11 and thus conveniently fix it on the washing machine upper cover 1, the above-mentioned mounting hole 3151 is set as a threaded hole; the threaded hole and the assembly hole 1111 are fixedly connected by connecting parts such as screws.

[0057] Furthermore, since the stress required for fixing the damper 2 is concentrated at the mounting hole 3151 after adopting the above structure, this part bears the main force required for opening and closing the washing machine cover 1, and the structural strength of this part determines the effective number of flipping of the washing machine cover. In order to further improve the service life of this part, a reinforcing rib extending in the upper and lower directions of the clamping groove 311 is provided on the upper rib 315 to enhance the structural strength of the mounting hole.

[0058] In an embodiment of the present invention, a lower rib 316 is provided on the outer wall of the cavity 312 located at the bottom of the snap-in slot 311, and the lower rib 316 extends in the front-to-back direction of the snap-in slot 311. The side wall of the mounting slot 11 is provided with an insertion slot 1121, and the lower rib 316 is inserted into the insertion slot 1121 in the up-down direction of the snap-in slot 311.

[0059] In the embodiment of the present invention, the lower rib 316 is inserted into the insertion groove 1121, which further increases the assembly strength between the positioning body and the installation groove, thereby further stabilizing the housing of the damper 2;

[0060] Specifically, a second rib 112 is provided on the side wall of the installation groove 11, and the second rib 112 is recessed to form a plug-in groove 1121 with a notch facing the lower rib 316; the plug-in groove 1121 is opened in the front and rear directions of the clamping groove, which is convenient for the lower rib 316 to be inserted into the plug-in groove 1121.

[0061] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. An upper cover structure, comprising an upper cover and a damper, wherein a mounting groove is provided on the rotating side of the upper cover, and the damper is fixed in the mounting groove via a positioning structure, characterized in that: The positioning structure comprises a clamping groove for the non-rotating end of the damper to be clamped in and a mounting hole fixedly connected to the inner wall of the mounting groove.

2. The upper cover structure according to claim 1, characterized in that: The positioning structure includes a positioning body, which is a square block structure. One side of the positioning body is recessed to form a clamping groove with a notch facing the non-rotating end of the damper. The inner wall of the clamping groove abuts against the outer periphery of the non-rotating end of the damper.

3. The upper cover structure according to claim 2, characterized in that: The interior of the positioning body is hollow to form a cavity, and the side walls of the cavity located on the left and right sides of the clamping groove are respectively opened. A plurality of intersecting reinforcing ribs are arranged in the cavity, and the outer wall of the clamping groove is connected to the reinforcing ribs.

4. The upper cover structure according to claim 3, characterized in that: The snap-in groove is square, and a first reinforcing rib and a second reinforcing rib, which are square plate-like structures, are provided in the cavity. The first reinforcing rib extends in the front-to-back direction of the snap-in groove, and the second reinforcing rib extends in the up-and-down direction of the snap-in groove. A square notch is provided on the first reinforcing rib, and the snap-in groove is embedded in the square notch. The bottom wall and the left and right side walls of the snap-in groove are respectively fitted and connected with the corresponding side walls of the square notch.

5. The upper cover structure according to claim 4, characterized in that: The middle part of the first reinforcing rib is intersected with the middle part of the second reinforcing rib, and the first reinforcing rib and the second reinforcing rib divide the interior of the cavity into a number of independent sub-cavities. The snap-in groove is arranged in the middle part of the side wall of the cavity, and the snap-in groove has an upper part and a lower part respectively located at the upper and lower parts of the notch, and the upper part and the lower part respectively extend into two sub-cavities distributed in the upper and lower directions of the snap-in groove, and are symmetrically arranged with the square notch as the center.

6. The upper cover structure according to claim 3, characterized in that: An upper rib is provided on the outer side wall of the cavity at the top of the clamping slot. The upper rib is a square plate-like structure. The upper rib extends in the front-to-back direction of the clamping slot. The mounting hole is provided on the upper rib and passes through the rib in the left-right direction of the clamping slot.

7. The upper cover structure according to claim 6, characterized in that: A first cylindrical rib is provided on the side wall of the mounting groove, and an opening is provided at one end of the first rib facing the damper. The inner periphery of the first rib forms an assembly hole that is screwed and assembled with the mounting hole. The outer periphery of the first rib is connected to a plurality of reinforcing ribs distributed along the outer periphery of the first rib. The side wall of the upper rib located on the left side of the clamping groove abuts against the open end of the first rib, and the outer side wall of the cavity located at the top of the clamping groove abuts against the outer periphery of the first rib.

8. The upper cover structure according to claim 3, characterized in that: A lower rib is provided on the outer side wall of the cavity at the bottom of the clamping slot, and the lower rib extends in the front-rear direction of the clamping slot. The side wall of the installation slot is provided with an insertion slot, and the lower rib is inserted into the insertion slot in the up-down direction of the clamping slot.

9. The upper cover structure according to claim 8, characterized in that: A second convex rib is provided on the side wall of the installation groove, and the second convex rib is recessed to form a plug-in groove with the notch facing the lower convex rib; Preferably, the damper is a columnar structure, and the damper is divided into a first damping section and a second damping section located at the non-rotating end of the damper in the front-to-rear direction of the snap-in groove. The radial dimension of the first damping section is larger than the radial dimension of the second damping section. The second damping section is snapped into the snap-in groove, and the end wall of the first damping section is abutted against the positioning body on the outer periphery of the snap-in groove.

10. A washing machine, wherein a clothes loading port is provided on the top of the washing machine, characterized in that: The clothing loading port is hinged with an upper cover structure according to any one of claims 1 to 9.

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