CN214300873U

CN214300873U - Door hinge assembly, door body structure and washing machine

Info

Publication number: CN214300873U
Application number: CN202022803924.9U
Authority: CN
Inventors: 卢诗雅; 赖毅俊; 潘光辉; 林帆
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-11-28
Filing date: 2020-11-28
Publication date: 2021-09-28
Anticipated expiration: 2030-11-28

Abstract

The utility model provides a door hinge subassembly, door body structure and washing machine. The door hinge assembly is arranged between a door body and a door frame which can rotate relatively and is used for hinging the door body with the door frame. The door hinge assembly includes: the door hinge seat is fixedly arranged on the door frame, and an installation surface for installing a door hinge is formed on the door hinge seat; the door hinge comprises a door hinge, a door hinge shaft and a door hinge base, wherein a door hinge first surface used for being assembled with the installation surface is formed on one side of the door hinge facing the installation surface, a door hinge second surface is formed on one side of the door hinge back to the installation surface, and the door hinge second surface is provided with the door hinge shaft; the door hinge shaft sleeve is sleeved on the door hinge shaft; and the door hinge sleeve is fixedly arranged on the door body, is provided with a door hinge shaft mounting hole and is used for mounting a door hinge shaft sleeved with the door hinge shaft sleeve. The door hinge assembly can meet the requirement of the switch rotation of an integrated door body, so that the door body can be kept flush with a machine body.

Description

Door hinge assembly, door body structure and washing machine

Technical Field

The utility model relates to a washing machine field especially relates to a door hinge subassembly, door body structure and washing machine.

Background

At present, the multi-barrel washing machine can realize the partition washing, and the multi-barrel washing machine is also an important trend of the development of the future washing machine, but in the whole machine design of the multi-barrel washing machine, the structural design of the door body of each washing barrel can directly influence the use of a user, wherein a rotating shaft part on the door body is a design key point in the door body structure. In the prior art, the door body of a multi-barrel washing machine often still continues to use the door body of a single-barrel washing machine, namely, a protruding door body is arranged at the position corresponding to an inner barrel, then the rotating shaft part of the door body is of a single door hinge structure, the door body of the structure can protrude one section of the front side machine body of the washing machine, the appearance is not attractive, and a sharp feeling can be brought to a user on the higher machine body of the multi-barrel washing machine. At present, in a multi-barrel washing machine researched and designed, a front cover and an observation window are combined on a door body, so that a smooth and integrated aesthetic feeling is provided for a user, at the moment, the door body must be installed to ensure the parallelism with a machine body, the span of the door body is longer, the parallel of the door body and the machine body is difficult to ensure by the structure of a traditional single door hinge, and the rotating shaft structure of the single door hinge cannot be used by the design of a rotating shaft part.

To sum up, in the overall design of the multi-tub washing machine, the door body with the integrated front cover and the observation window needs a rotating shaft part which can ensure that the door body is parallel to the machine body, and meanwhile, the part needs to meet the assembling strength with the frame of the machine body and the assembling strength with the door body.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a door hinge subassembly, door body structure and washing machine is used for solving the parallel technical problem of the integral type door body and fuselage that washing machine exists among the prior art at least, specifically:

the utility model discloses a first aspect discloses a door hinge subassembly sets up and can produce between the relative pivoted door body and portal, be used for with the door body with the portal is articulated, include

The hinge seat has the default interval between its both sides face that backs on the back, and forms first installation face and second installation face respectively, wherein: the first mounting surface is used for being connected with the door frame, and the second mounting surface is used for mounting a door hinge;

a door hinge, wherein a door hinge first surface used for being assembled with the second mounting surface is formed on one side of the door hinge facing the second mounting surface, a door hinge second surface is formed on one side of the door hinge opposite to the second mounting surface, and a door hinge shaft is arranged on the door hinge second surface;

the door hinge shaft sleeve is sleeved on the door hinge shaft;

and the door hinge sleeve is fixedly arranged on the door body, is provided with a door hinge shaft mounting hole and is used for mounting a door hinge shaft sleeved with the door hinge shaft sleeve.

In a further alternative,

the hinge seat with the hinge is detachable to be connected, wherein be equipped with a plurality of mounting holes on the second mounting surface, be equipped with a plurality of running through on the hinge the second face of hinge extremely the hinge through-hole of the first face of hinge, the mounting hole with hinge through-hole one-to-one just passes through bolt or screwed connection.

In a further alternative,

and the hinge seat and the hinge are positioned and assembled by adopting a pin, wherein a pin hole is formed on the second mounting surface, a positioning hole is formed on the first surface of the hinge, and the pin hole is connected with the positioning hole through the pin.

In a further alternative,

the door hinge shaft is connected with the second surface of the door hinge through a door hinge shaft arm,

the first end of the door hinge shaft arm is connected with the second surface of the door hinge; the second end of the door hinge shaft arm is bent towards one side of the second surface of the door hinge, and a movable space for the door body to rotate is formed between the second end of the door hinge shaft arm and the second surface of the door hinge; the door hinge shaft is arranged at the second end of the door hinge shaft arm.

In a further alternative,

the central axis of the door hinge shaft is perpendicular to the plane where the second end of the door hinge shaft arm extends in a bending mode.

In a further alternative,

the first end of the door hinge shaft is arranged on the door hinge shaft arm, and the second end of the door hinge shaft forms a conical structure or a hemispherical structure with preset taper.

In a further alternative,

the door hinge shaft sleeve and the door hinge shaft are in interference fit.

In a further alternative,

the side wall of the door hinge shaft sleeve is provided with an open slot which is used as an oil storage tank and/or enables the door hinge shaft sleeve to have radial deformation.

In a further alternative,

the open slot is opened to the top of the door hinge shaft sleeve along the sleeve opening of the door hinge shaft sleeve.

In a further alternative,

the door hinge assembly further includes a door hinge cover,

the door hinge cover is arranged on the door body and used for being matched with the door hinge sleeve to limit the door hinge in the axial direction of the door hinge shaft.

The second aspect of the utility model discloses a door body structure which is arranged on a door frame, the door body structure comprises any one of the door hinge components and a door body connected with one end of the door hinge component,

the door hinge assembly comprises a door body, a door hinge sleeve, a door hinge cover, a door hinge sleeve and a door hinge cover, wherein a first mounting surface of the door hinge seat in the door hinge assembly is connected with the door frame, a second mounting surface of the door hinge seat is connected with the door hinge of the door hinge assembly, the door hinge sleeve and the door hinge cover of the door hinge assembly are arranged on the door body, and the door hinge sleeve is matched with the door hinge cover to enable the door hinge sleeved with the door hinge sleeve to be rotatably arranged on the door body.

In a further alternative,

the door body includes a front-side cover and a rear-side cover and an observation window disposed between the front-side cover and the rear-side cover.

In a further alternative,

the door hinge cover is clamped with the door body,

a plurality of first clamping arms are formed on one side surface of the door hinge cover facing the door body, and a first inner side matching surface and a first outer side guide surface are arranged at the free ends of the first clamping arms; a plurality of second clamping arms matched with the first clamping arms are formed on one side surface of the door body facing the door hinge cover, and a second inner side matching surface and a second outer side guide surface are arranged at the free ends of the second clamping arms;

the first outer side guide surface is matched with the second outer side guide surface, and the first outer side guide surface guides the door hinge cover in the process of being installed to the installation position corresponding to the door body; the first inner side matching surface is matched with the second inner side matching surface, and the door hinge cover is installed to the installation position and then clamped with the door body.

In a further alternative,

and one side of the door hinge cover, which is close to the door hinge, is provided with a door hinge limiting boss for limiting the door hinge shaft of the door hinge to withdraw from the door hinge sleeve.

In a further alternative,

the door body structure comprises two door hinge assemblies which are arranged on a vertical beam of the door frame from top to bottom, and a door hinge seat of each door hinge assembly is transversely arranged on the vertical beam.

The utility model discloses a washing machine is disclosed to the third aspect, washing machine includes any kind of hinge subassembly of above-mentioned, or any kind of door body structure of above-mentioned.

The utility model discloses an among the hinge subassembly, the design has the hinge axle of specific tapering structure and the hinge seat of a take the altitude, and the design has the locating hole between hinge and hinge seat, has adopted the structural design that hinge seat and frame panel beating erect the roof beam and be connected, has added the hinge axle sleeve of wear-resisting plastics material in the installation of hinge and the door body, consequently reaches following beneficial effect:

1. the aesthetic property of the door body is enhanced;

2. the strength between the door body and the door hinge is enhanced;

3. the connection rigidity of the whole door body and the frame is enhanced;

4. thereby the locating hole before hinge AND gate hinge seat can play the effect of preventing staying reduces the assembly degree of difficulty and promotes assembly efficiency.

5. Effectively guaranteeing the smoothness of the rotation of the door body and the service life.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

FIG. 1 is a schematic view of the door hinge and door hinge mount of the present invention after assembly;

FIG. 2 is a schematic view of the door hinge assembly of the present invention;

FIG. 3 shows a schematic view (one) of a door hinge according to an embodiment of the present invention;

fig. 4 shows a schematic view (two) of a door hinge according to an embodiment of the present invention;

fig. 5 shows a schematic view (three) of a door hinge according to an embodiment of the present invention;

fig. 6 shows a schematic view (one) of a door hinge base according to an embodiment of the present invention;

fig. 7 shows a schematic view (two) of a door hinge base according to an embodiment of the present invention;

FIG. 8 is a schematic view of a door hinge bushing according to an embodiment of the present invention;

FIG. 9 is a partial schematic view of an embodiment of the present invention illustrating a door hinge, a door hinge bushing, and a door hinge bushing after installation;

FIG. 10 is a schematic view of a door hinge sleeve according to an embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of a door hinge sleeve according to an embodiment of the present invention;

fig. 12 shows a schematic view (one) of a door hinge cover according to an embodiment of the present invention;

fig. 13 shows a schematic view (two) of a door hinge cover according to an embodiment of the present invention;

fig. 14 shows a schematic view of a buckle structure according to an embodiment of the present invention;

figure 15 shows a schematic view of a snap connection according to an embodiment of the present invention;

fig. 16 shows a schematic view (one) of the installation of the door hinge base and the frame according to the embodiment of the present invention;

fig. 17 shows a schematic view (ii) of the installation of the door hinge base and the frame according to the embodiment of the present invention;

fig. 18 shows an explosion schematic view of the door body structure according to the embodiment of the present invention;

fig. 19 shows a schematic view of the assembly position of the door hinge according to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two, but does not exclude the presence of at least one.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

In order to ensure that the door body of the washing machine integrating the front cover and the observation window can ensure the rotating shaft part of the door body parallel to the machine body, and the part can also meet the assembling strength with the frame of the machine body and the assembling strength with the door body. It is necessary to provide a door body rotating shaft component (door hinge component) which can meet the requirement that a front cover and an observation window are integrated; the door hinge assembly is arranged to ensure the connection strength between the door body and the machine body of the multi-barrel washing machine. In the door hinge assembly, the matching mode of a door hinge shaft, a door hinge shaft sleeve and a door hinge sleeve mounting hole of a door hinge is improved, and the door hinge and a door hinge seat are matched through a positioning structure to facilitate mounting; the door hinge seat is fixed on the vertical beam and the reinforcing plate on the frame, and the integral rigidity of the frame is enhanced.

To further illustrate the solution of the present invention, the following specific examples are provided in conjunction with fig. 1-19.

In the present embodiment, a door hinge assembly is provided, which is disposed between a door body 01 and a door frame, which are relatively rotatable, for hinging the door body 01 with the door frame 021. The door hinge assembly includes:

the door hinge seat 31 has a preset distance between opposite two side surfaces thereof, and forms a first mounting surface and a second mounting surface respectively, wherein: the first mounting surface is used for being connected with a door frame 021, and the second mounting surface is used for mounting a door hinge;

a door hinge 33, a door hinge first surface for assembling with the second mounting surface is formed on one side facing the second mounting surface, a door hinge second surface is formed on one side back to the second mounting surface, and a door hinge shaft 331 is arranged on the door hinge second surface;

the door hinge shaft sleeve 32 is sleeved on the door hinge shaft 331;

and the door hinge sleeve 34 is fixedly arranged on the door body 01, is provided with a door hinge shaft mounting hole and is used for mounting a door hinge shaft 331 sleeved with the door hinge shaft sleeve.

The door hinge seat 31 has a certain height by utilizing the preset distance between the two mounting surfaces, so that the protruding door frame 021 has a certain height after the door hinge 33 is mounted, and the moving range of the door body 01 is increased. By arranging the door hinge sleeve between the door hinge shaft 331 of the door hinge 33 and the matching hole on the door hinge sleeve and by adopting but not limited to using wear-resistant plastics, the rotating life of the door hinge shaft 331 is prolonged, and the noise in the rotating process is reduced.

Optionally, the door hinge seat 31 is detachably connected to the door hinge 33, wherein a plurality of mounting holes 311 are provided on the second mounting surface, a plurality of door hinge through holes penetrating through the second surface of the door hinge to the first surface of the door hinge are provided on the door hinge 33, and the mounting holes 311 are in one-to-one correspondence with the door hinge through holes and are connected through bolts or screws. Further, the mounting holes 311 are symmetrically disposed on the door hinge base 31, and when it is transversely mounted on the door frame 021, two may have been disposed on the left side thereof and two may have been disposed on the right side thereof, so that the door hinge base 31 is transversely disposed on the door frame 021.

And the door hinge seat 31 and the door hinge 33 are positioned and assembled by adopting a pin, so that the assembly of a user is facilitated, and blind assembly is realized. The second mounting surface is provided with a pin hole 312, the first door hinge surface is provided with a positioning hole 333, and the pin hole 312 is connected with the positioning hole 333 through a pin.

In this embodiment, door hinge 331 is coupled to the second face of the door hinge by door hinge arm 332. At this time, the first end of the door hinge shaft arm 332 is connected with the second face of the door hinge; the second end of the door hinge arm 332 is bent towards one side of the second surface of the door hinge, and a movable space for the door body 01 to rotate is formed between the second end of the door hinge arm and the second surface of the door hinge; the door hinge shaft 331 is provided at a second end of the door hinge shaft arm 332.

Further, the central axis of the door hinge 331 is perpendicular to the plane in which the second end of the door hinge arm 332 is bent and extended. A first end of the door hinge shaft 331 is disposed on the door hinge shaft arm 332, and a second end of the door hinge shaft 331 is formed in a tapered structure or a hemispherical structure having a predetermined taper. At this time, the inner side surface of the door hinge sleeve and the outer side surface of the door hinge shaft 331 (the outer side surface of the conical structure or the outer side surface of the hemispherical structure) are installation matching surfaces; the upper spherical surface of the outer side of the door hinge sleeve 32 and the spherical surface in the matching hole 341 of the door hinge sleeve 34 are matching surfaces. The door hinge bush 34 is mounted to the door body 01 through the door hinge bush positioning hole 342.

The door hinge assembly also includes a door hinge cover. And the door hinge cover is arranged on the door body 01 and is used for being matched with the door hinge sleeve to limit the door hinge in the axial direction of the door hinge shaft 331. Correspondingly, a tapered hole (the interior of the tapered hole is correspondingly contacted with the upper spherical surface) is designed on the matching hole 341 on the door hinge sleeve 34, so that the tapered hole not only can play a role of guiding, but also can reduce the friction area between the door hinge sleeve 32 and the matching hole 341.

In this embodiment, the door hinge sleeve 32 is in interference fit with the door hinge shaft 331. Optionally, an open slot 321 is provided in the sidewall of the door hinge bush 32 to act as an oil reservoir and/or to provide the door hinge bush with a radial amount of deformation. The opening groove 321 can improve the radial deformation amount of the door hinge shaft sleeve, and can be used as an oil storage groove to ensure that a certain amount of lubricating oil is reserved in the door hinge shaft sleeve and the matching hole of the door hinge shaft sleeve. Furthermore, the open slot is opened to the top of the door hinge shaft sleeve along the sleeve opening of the door hinge shaft sleeve.

When the fit between the door hinge shaft 331 and the door hinge shaft sleeve 32 is interference fit, and the door hinge shaft sleeve 32 is mounted on the door hinge shaft 331, the door hinge shaft sleeve 32 expands, so that a gap between the door hinge shaft 331 and the door hinge shaft sleeve 32 is zero, and the door hinge shaft 331 and the door hinge shaft sleeve 32 are prevented from moving.

The utility model also provides a door body structure. The door body structure comprises the door hinge assembly and a door body 01 arranged at one end of the door hinge assembly.

The door hinge seat 31 of the door hinge assembly is arranged on the door frame 021 and connected with the door hinge 33 of the door hinge assembly, the door hinge sleeve and the door hinge cover of the door hinge assembly are arranged on the door body 01, and the door hinge sleeve and the door hinge cover are matched to enable the door hinge sleeved with the door hinge sleeve to be rotatably arranged on the door body 01. The door body 01 includes front and rear side covers and an observation window provided between the front and rear side covers.

When the door structure is an integrated door structure for the laundry treating apparatus, the door structure is mainly used for opening and closing the laundry treating apparatus after being assembled to the door frame 021. At this time, the number of the door bodies 01 may be set according to the number of the laundry treatment tubs in the laundry treatment apparatus used, the door body 01 is generally installed in front of the corresponding laundry treatment tub, the door body structure is installed on the edge of the door frame 021 of the laundry treatment apparatus through two or more door hinge assemblies, and the installation position of the door hinge assemblies is generally arranged perpendicular to the horizontal central plane of the door body 01. Preferably, the door hinge assembly used by the same door body 01 is generally fixed to the left vertical beam or the right vertical beam of the door frame 021, so that the door hinge assembly is convenient for users to use.

The door body 01 consists of nine main parts, in order from outside to inside: door glass 1, door body front side cover 2, decorate circle 4, buckle fixing base 5, observation window 6, door internal fixation seat 7, door body rear side cover 8, buffer block 9.

Door hinge seat 31 passes through the fix with screw behind portal 021 on, furtherly, fix a position through the pin between door hinge and the door hinge seat 31, fix the door hinge to door hinge seat 31 through the screw on, door hinge axle sleeve suit is to the door hinge axle 331 of door hinge on, door hinge device cooperation hole alignment door hinge axle 331 on the door body 01 on the door hinge cover (has been equipped with door hinge axle sleeve this moment), place door body 01 on door hinge 32, buckle door hinge lid on door body 01 through the buckle, beat the screw reinforcement at last.

Preferably, the door body structure comprises two door hinge assemblies arranged up and down on the panel 02, in particular on the vertical beams 0211 and the reinforcing plate 0212 of the door shelves 021 of the panel 02. The door hinge seat 31 of each door hinge assembly is transversely installed on the vertical beam 0211, or on the reinforcing plate 0212, or on the joint of the vertical beam 0211 and the reinforcing plate 0212 (in the position A in the figure). The left end and the right end of the door hinge seat 31 are respectively fixed on the vertical beam (support) of the frame and the connecting plate, namely, the door hinge seat is transversely assembled, and the door hinge seat 31 is longer in transverse arrangement, so that the rigidity of the frame can be correspondingly improved, the deformation caused by the weight of the door body 01 is reduced, and the assembly levelness of the door body 01 is ensured.

The main function of the door hinge cover 35 is to restrict the up-and-down movement of the door body 01 on the door hinge, thereby preventing the door body 01 from falling off. Further, the design has spacing boss 351 on the hinge lid, and further, the hinge lid is fixed to the door body 01 through the buckle after the door body 01 is installed to the hinge on, and further, spacing boss 351 on the hinge lid is up, leaves certain clearance with the hinge, and this clearance is the effective stroke that the door body 01 reciprocated on the hinge.

Alternatively, when the door hinge cover is clamped with the door body 01. The buckle on the door hinge cover 35 is a double-guide buckle, the upper side and the lower side of the buckle 352 are guide planes with a certain angle, and further, the upper side and the lower side of the buckle mounting position on the door body 01 are also guide planes with a certain angle.

Specifically, the method comprises the following steps: a plurality of first clamping arms are formed on one side surface of the door hinge cover facing the door body 01, and a first inner side matching surface 353 and a first outer side guide surface 352 are arranged at the free ends of the first clamping arms; a plurality of second clamping arms matched with the first clamping arms are formed on one side surface of the door body 01 facing the door hinge cover, and a second inner side matching surface 012 and a second outer side guide surface 011 are arranged at the free ends of the second clamping arms; the first outer guide surface 352 is matched with the second outer guide surface 011, and guiding is performed in the process that the door hinge cover 35 is installed to the installation position corresponding to the door body 01; the first inner side matching surface 353 is matched with the second inner side matching surface 012, and the door hinge cover is clamped with the door body 01 after being installed to the installation position.

The two first snap arms cooperate to form a snap 352 and the two second snap arms cooperate to form a bayonet.

Preferably, after the two first clamping arms are matched, an included angle between the two first outer side guide surfaces on the two first clamping arms forms an inserting guide angle of the buckle, and an included angle between the two first inner side matching surfaces forms an extracting guide angle of the buckle, wherein the angle of the extracting guide angle is larger than that of the inserting guide angle, so that the assembly fluency of the buckle and the bayonet mounting position is improved; after the two second clamping arms are matched, the included angle of the two outer side guide surfaces of the two second clamping arms forms an open angle of the bayonet, the included angle of the two inner side matching surfaces of the two second clamping arms forms a limiting open angle of the bayonet, the angle of the open angle is smaller than that of the limiting open angle, and the mounting friction force of the buckle and the bayonet mounting position is improved.

It should be noted that any of the door hinge assemblies or door body structures described above can be mounted on the washing machine to achieve the optimized improvement of the washing machine.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A door hinge assembly is arranged between a door body and a door frame which can rotate relatively and is used for hinging the door body with the door frame, and is characterized by comprising

the door hinge shaft sleeve is sleeved on the door hinge shaft;

2. The door hinge assembly according to claim 1, wherein the door hinge base is detachably connected with the door hinge, a plurality of mounting holes are formed in the second mounting surface, a plurality of door hinge through holes penetrating through the second surface of the door hinge to the first surface of the door hinge are formed in the door hinge, and the mounting holes correspond to the door hinge through holes one to one and are connected through bolts or screws.

3. The door hinge assembly according to claim 2, wherein the hinge seat and the door hinge are positioned and assembled by using a pin, a pin hole is formed in the second mounting surface, a positioning hole is formed in the first surface of the door hinge, and the pin hole and the positioning hole are connected by the pin.

4. The door hinge assembly of claim 1, wherein the door hinge shaft is connected to the door hinge second face by a door hinge shaft arm,

5. A door hinge assembly according to claim 4, wherein the central axis of the door hinge shaft is perpendicular to the plane in which the second ends of the door hinge shaft arms extend in a curved manner.

6. The door hinge assembly according to claim 5, wherein a first end of the door hinge shaft is provided on the door hinge shaft arm, and a second end of the door hinge shaft is formed in a tapered structure or a hemispherical structure having a predetermined taper.

7. A door hinge assembly according to any of claims 1 to 6, wherein the door hinge bush is an interference fit with the door hinge shaft.

8. The door hinge assembly of claim 7, wherein the side wall of the door hinge sleeve is provided with an open slot for serving as an oil reservoir and/or providing the door hinge sleeve with a radial deformation amount.

9. The door hinge assembly of claim 8, wherein the open slot is open to a top of the door hinge boss along a pocket of the door hinge boss.

10. The door hinge assembly of claim 1, further comprising a door hinge cover,

11. A door body structure mounted on a door frame, wherein the door body structure comprises a door hinge assembly according to any one of claims 1 to 9, and further comprises a door body connected with one end of the door hinge assembly,

12. The door body structure according to claim 11, wherein the door body includes front and rear side covers and a viewing window disposed between the front and rear side covers.

13. The door body structure according to claim 12, wherein the door hinge cover is snap-fitted to the door body,

14. The door body structure according to claim 13, wherein a side of the door hinge cover adjacent to the door hinge is provided with a door hinge limiting boss for limiting a door hinge shaft of the door hinge to withdraw from the door hinge sleeve.

15. The door body structure according to claim 14, wherein the door body structure comprises two door hinge assemblies arranged one above the other on the vertical beam of the door frame, and a door hinge seat of each door hinge assembly is transversely installed on the vertical beam.

16. A washing machine, characterized in that the washing machine comprises a door hinge assembly as claimed in claims 1 to 10, or a door body structure as claimed in any one of claims 11 to 15.