CN115788194A - Hinge assembly with multiple groove bodies and household appliance with hinge assembly - Google Patents

Abstract

The invention discloses a hinge assembly with a plurality of groove bodies and household appliance equipment with the hinge assembly, wherein the hinge assembly comprises two shaft bodies positioned on a first hinge part, two groove bodies positioned on a sliding sheet, a limiting bulge positioned on a second hinge part and a rotating assembly positioned between the sliding sheet and the second hinge part, one of the shaft bodies comprises a sliding groove, the limiting bulge is limited on the sliding groove, a central shaft of the shaft body during rotation does not coincide with a central shaft of the rotating assembly during rotation, the other shaft body extends into the other groove body, the other shaft body is positioned on one side, close to the sliding sheet, of the second hinge part, when the hinge assembly is in an opening process, the second hinge part and the sliding sheet move relative to the first hinge part until the shaft bodies are limited on the groove bodies, and then the rotating assembly drives the second hinge part to move relative to the sliding sheet. The hinge assembly of the invention has the change of the position of the rotating shaft in the two rotating processes, and can improve the degree of freedom of the opening and closing processes of the door body of the household appliance.

Description

Hinge assembly with multiple groove bodies and household appliance with hinge assembly

Technical Field

The invention relates to the technical field of household appliances, in particular to a hinge assembly with a plurality of groove bodies and household appliance equipment with the hinge assembly.

Background

In general, home appliances are freely placed in a free space in a home. In recent years, with the progress of society and the improvement of living standard of people, the placement position and the placement mode of household appliances in a family are more and more emphasized by common users; especially, the placing mode of the embedded refrigerator is more and more concerned. The embedded refrigerator is generally arranged in a groove space reserved in a household kitchen in advance, or is made into a cabinet integrated type with a household cabinet, so that the embedded refrigerator is attractive, elegant and high-grade.

For embedded intelligent household appliances similar to an embedded refrigerator, when a single-shaft hinge assembly is used, in order to avoid interference between a door body of the household appliance and a cabinet body or a wall body, a large gap needs to be reserved between the household appliance and the cabinet body or the wall body, and garbage, dirt and the like can be hidden in the gap.

In view of the above, there is a need for an improved household electrical appliance to solve the above problems.

Disclosure of Invention

The invention aims to provide a hinge assembly with a plurality of groove bodies and household electrical appliance with the hinge assembly.

In order to achieve one of the above objects, an embodiment of the present invention provides a hinge assembly having a plurality of slots, including a first hinge member connected to a box, a second hinge member connected to a door, and a sliding piece connected to the first hinge member and the second hinge member, the hinge assembly further including two shafts located at the first hinge member, two slots located at the sliding piece, a limiting protrusion located at the second hinge member, and a rotating assembly located between the sliding piece and the second hinge member, wherein one shaft includes a sliding slot, the shaft passes through one of the slots and extends to the second hinge member, the limiting protrusion is limited at the sliding slot, a central axis of the shaft when the shaft rotates does not coincide with a central axis of the rotating assembly when the shaft rotates, and the other shaft extends into the other slot, and the other shaft is located at a side of the second hinge member close to the sliding piece, when the hinge assembly is in an opening process, one of the shafts moves relative to the one of the slots and the limiting protrusion, and the other shaft moves relative to the first hinge member and drives the second hinge member to move relative to the sliding piece, and then the second slot moves relative to the limiting protrusion.

As a further improvement of an embodiment of the present invention, an extending direction of the limiting protrusion is consistent with an extending direction of the corresponding groove body.

As a further improvement of the embodiment of the present invention, the shaft body includes two protruding columns, and the two protruding columns cooperate to form the sliding slot.

As a further improvement of the embodiment of the present invention, the shaft further includes a shaft body connected to the first hinge member, and the protruding pillar is located on a side of the shaft body away from the first hinge member.

As a further improvement of an embodiment of the present invention, when the hinge assembly is in the process of opening from the closed state to the first opening angle, the second hinge member and the slide piece rotate relative to the first hinge member about the first rotation axis, and when the hinge assembly is in the process of continuing to open from the first opening angle to the second opening angle, the second hinge member rotates relative to the slide piece about the second rotation axis.

As a further improvement of an embodiment of the present invention, the hinge assembly includes a first shaft and a second shaft disposed on the first hinge element, and a first slot and a second slot disposed on the sliding sheet, wherein the first slot and the first shaft are matched with each other, and the second slot and the second shaft are matched with each other.

As a further improvement of the embodiment of the present invention, the first shaft body rotates in situ in the first tank body as the first rotating shaft, and the second shaft body moves in the second tank body with the first rotating shaft as a central shaft.

As a further improvement of an embodiment of the present invention, the first slot and the second slot are both long, when the hinge assembly is opened from the closed state to the first opening angle, the second shaft moves in the second slot to drive the first shaft to move in the first slot, and the door body generates a translation amount relative to the box body.

As a further improvement of an embodiment of the present invention, the box body includes an accommodating chamber and a pivoting side connected to the hinge assembly, and when the hinge assembly is in a process of being opened from a closed state to a first opening angle, the door body moves from the pivoting side toward the accommodating chamber.

As a further improvement of an embodiment of the present invention, the first slot includes an initial position and a first stop position, when the hinge assembly is in the closed state, the first shaft is located at the initial position, the second shaft is located at one end of the second slot, when the hinge assembly is in the process of opening from the closed state to the first opening angle, the second shaft moves in the second slot to drive the first shaft to move from the initial position to the first stop position, and the door moves from the pivot side toward the accommodating chamber.

As a further improvement of an embodiment of the present invention, the door body includes a front wall far from the accommodating chamber and a side wall always sandwiched between the front wall and the accommodating chamber, and the initial position is far from the front wall and the side wall compared to the first stop position.

As a further improvement of an embodiment of the present invention, the first slot includes an initial position and a first stop position, the second slot includes a first section and a second section connected to each other, when the hinge assembly is in a process of opening from a closed state to a first intermediate opening angle, the first shaft is kept at the initial position, the second shaft moves in the first section with the first shaft as a central axis, when the hinge assembly is in a process of continuing to open from the first intermediate opening angle to the first opening angle, the second shaft moves in the second section to drive the first shaft to move from the initial position to the first stop position, and the door moves from the pivot side to the accommodating chamber.

As a further improvement of an embodiment of the present invention, the first slot includes a first stop position, a second stop position and an initial position located between the first stop position and the second stop position, the second slot includes a first section, a second section and a third section, which are connected in sequence, when the hinge assembly is opened from a closed state to a first intermediate opening angle, the first shaft is kept at the initial position, the second shaft moves in the first section with the first shaft as a central axis, when the hinge assembly is continuously opened from the first intermediate opening angle to a second intermediate opening angle, the second shaft moves in the second section to drive the first shaft to move from the initial position to the first stop position, the door body moves from the pivoting side to the accommodating chamber, when the hinge assembly is continuously opened from the second intermediate opening angle to the first opening angle, the second shaft moves in the third section to drive the first shaft to move from the first stop position to the second stop position, and the door body moves from the pivoting side to the accommodating chamber.

In a further improvement of an embodiment of the present invention, the second rotating shaft is a fixed shaft, and the second hinge member rotates in situ with respect to the slide plate with the second rotating shaft as a center axis.

As a further improvement of the embodiment of the present invention, the second hinge element is further provided with an extending portion connected to the limiting protrusion, and when the second hinge element moves relative to the sliding piece, the shaft body moves at the extending portion.

As a further improvement of an embodiment of the present invention, the extension portion is a circular arc protrusion, and a central axis of the circular arc protrusion is the second rotation axis.

As a further improvement of an embodiment of the present invention, the second rotation axis is a virtual axis.

As a further improvement of the embodiment of the present invention, the rotating assembly includes a third shaft body and a circular hole, the third shaft body is located between the sliding piece and the second hinge piece, and the third shaft body serves as the second rotating shaft and rotates in the circular hole.

As a further improvement of an embodiment of the present invention, the rotating assembly includes a protrusion and a slide rail located between the slide plate and the second hinge member, and the protrusion slides in the slide rail around the second rotating shaft as a central axis.

As a further improvement of an embodiment of the present invention, the protrusion is provided on the second hinge member, the protrusion is a rib, and the slide is located on the shaft body.

As a further improvement of the embodiment of the present invention, the protrusion is disposed on the second hinge, the protrusion is a rib, the sliding piece is provided with the slide way, the slide way penetrates through the groove body, and when the second hinge rotates relative to the sliding piece, the rib moves to the groove body to limit the shaft body.

As a further improvement of an embodiment of the present invention, the protruding ridge cooperates with an end of the groove body to limit the shaft body.

As a further improvement of an embodiment of the present invention, the protrusion is a convex pillar, and the convex pillar slides in the slide way.

As a further improvement of an embodiment of the present invention, the hinge assembly is configured to: when the first rotating shaft actuates, a first distance is reserved between the first rotating shaft and the front end face of the box body, when the second rotating shaft actuates, a second distance is reserved between the second rotating shaft and the front end face of the box body, and the second distance is larger than the first distance.

As a further improvement of an embodiment of the present invention, the hinge assembly is configured to: when the first rotating shaft actuates, a third distance is reserved between the first rotating shaft and the outer side face of the box body, when the second rotating shaft actuates, a fourth distance is reserved between the second rotating shaft and the outer side face of the box body, and the fourth distance is smaller than the third distance.

In order to achieve one of the above objects, an embodiment of the present invention provides a household electrical appliance, including a box body, a door body, and a hinge assembly connecting the box body and the door body, wherein the hinge assembly is the hinge assembly according to any one of the above technical solutions.

Compared with the prior art, the beneficial effects of the embodiment of the invention are as follows: according to the hinge assembly, the sequence of the two rotations can be effectively controlled, the position of the rotating shaft is changed in the two rotation processes, the motion trail of the door body can be effectively controlled, the degree of freedom of the opening and closing processes of the refrigerator door body is further improved, and particularly in the field of embedded refrigerators, the door body can be prevented from interfering with peripheral cabinets or walls in the opening and closing processes through the switching of the rotating shaft.

Drawings

Fig. 1 is a perspective view of a home appliance according to an embodiment of the present invention;

FIG. 2 is a perspective view of a hinge assembly according to one embodiment of the present invention;

FIG. 3 is an exploded view of a portion of the hinge assembly from a first perspective in accordance with one embodiment of the present invention;

FIG. 4 is an exploded view of a portion of the hinge assembly from a second perspective in accordance with one embodiment of the present invention;

fig. 5 is a schematic view of a home appliance and a cabinet according to an embodiment of the present invention;

FIG. 6 is an exploded view of a hinge assembly according to other embodiments of the present invention;

FIG. 7 is a cross-sectional view of a protrusion in cooperation with a ramp in accordance with an embodiment of the present invention;

FIG. 8 is an exploded view of a projection and chute according to other embodiments of the invention;

FIG. 9 is a schematic view of a protrusion and a slide according to other embodiments of the present invention;

FIG. 10 is a cross-sectional view of the fit between the first hinge element and the slider of the first specific example of an embodiment of the present invention;

FIG. 11 is a cross-sectional view of the fit between the first hinge element and the slider of a second specific example of an embodiment of the present invention;

FIG. 12 is a cross-sectional view of the fit between the first hinge element and the slider of a third specific example of an embodiment of the present invention;

FIG. 13 is a cross-sectional view of the fit between the first hinge element and the slider of a fourth specific example of an embodiment of the present invention;

FIG. 14 is an exploded view of a portion of the hinge assembly from a first perspective in accordance with other embodiments of the present invention;

fig. 15 is an exploded view of a second perspective portion of a hinge assembly in accordance with other embodiments of the present invention.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

In the various drawings of the present invention, some dimensions of structures or portions are exaggerated relative to other structures or portions for convenience of illustration, and thus, are used only to illustrate the basic structure of the subject matter of the present invention.

Fig. 1 is a schematic diagram of a home appliance 100 according to an embodiment of the present invention.

The household appliance 100 includes a cabinet 10, a door 20, and a hinge assembly 30 connecting the cabinet 10 and the door 20.

The home appliance 100 may be a refrigerator, a freezer, a wine cabinet, or the like, and here, the home appliance 100 is taken as an example of the refrigerator.

In addition, the hinge assembly 30 is not only applicable to the household electrical appliance 100, but also applicable to other occasions, such as a cabinet, a wardrobe, etc., and the hinge assembly 30 is applied to the refrigerator 100 as an example of the present invention, but not limited thereto.

Referring to fig. 2 to 4, a hinge assembly 30 having a plurality of slots according to an embodiment of the present invention is shown.

The hinge assembly 30 includes a first hinge 31 connected to the cabinet 10, a second hinge 32 connected to the door 20, and a sliding piece 40 connecting the first hinge 31 and the second hinge 32.

Here, the "first hinge 31 connected to the case 10" means that the first hinge 31 is connected to the case 10, and the first hinge 31 may be a separate member attached to the case 10 or a member directly integrally formed on the case 10.

Similarly, the "second hinge 32 connected to the door 20" means that the second hinge 32 is connected to the door 20, and the second hinge 32 may be a separate component attached to the door 20 or a component directly integrally formed on the door 20.

The hinge assembly 30 further includes two shafts 311 and 312 located on the first hinge member 31, two slots 401 and 402 located on the sliding piece 40, a limiting protrusion 322 located on the second hinge member 32, and the rotating assembly 50 located between the sliding piece 40 and the second hinge member 32.

Here, "two shafts 311, 312 located on the first hinge member 31" means that the two shafts 311, 312 are disposed on the first hinge member 31, and the two shafts 311, 312 and the first hinge member 31 may be integrally formed or may be assembled together, and for the explanation of "located" in other parts of the present invention, reference may be made to this description, and details will not be described later.

One of the shaft bodies 312 includes a sliding slot 314, the shaft body 312 passes through one of the slots 402 and extends to the second hinge element 32, the limiting protrusion 322 is limited in the sliding slot 314, and a central axis of the shaft body 312 when rotating does not coincide with a central axis of the rotating assembly 50 when rotating, wherein another shaft body 311 extends into another slot 401, and the another shaft body 311 is located at a side of the second hinge element 32 close to the sliding piece 40.

Here, the limiting protrusion 322 is an elongated structure, and the limiting protrusion 322 can slide in the sliding slot 314 to drive the second hinge element 32 and the shaft 312 to move relatively.

The phrase "the other shaft body 311 is located on the side of the second hinge element 32 close to the sliding piece 40" means that the shaft body 311 does not extend into the second hinge element 32, that is, the end of the shaft body 311 close to the second hinge element 32 is located above the second hinge element 32 (that is, the side of the second hinge element 32 close to the sliding piece 40), and the shaft body 311 is not connected to the second hinge element 32 itself, but the connection between the shaft body 311 and the second hinge element 32 may be achieved by other structures, for example, the protrusion 326 and the slide 404 described later.

When the hinge assembly 30 is in an opening process, one of the shaft bodies 312 moves relative to one of the slot bodies 402 and the limiting protrusion 322, and the other shaft body 311 moves relative to the other slot body 401 to drive the second hinge member 32 and the sliding sheet 40 to move relative to the first hinge member 31 together until the shaft bodies 311 and 312 are limited in the slot bodies 401 and 402, and then the rotating assembly 50 drives the second hinge member 32 to move relative to the sliding sheet 40.

Here, the extending direction of the limiting protrusion 322 is the same as the extending direction of the slot 402, that is, the extending direction of the limiting protrusion 322 is substantially the extending direction of the central line of the slot 402, and when the hinge assembly 30 is in the closed state, the limiting protrusion 322 is substantially overlapped with the central line of the slot 402 in the overlapping direction of the first hinge element 31, the sliding piece 40 and the second hinge element 32, so that when the shaft 312 slides in the slot 402, the shaft 312 can slide relative to the limiting protrusion 322, and no relative movement occurs between the limiting protrusion 322 and the slot 402 during the sliding process, that is, the second hinge element 32 and the sliding piece 40 can be kept relatively still.

It can be seen that the shaft 312 is simultaneously limited by the slot 402 and the limiting protrusion 322, and the central axis of the shaft 312 when rotating does not coincide with the central axis of the rotating assembly 50 when rotating, so that when the shaft 312 moves in the slot 402, the second hinge element 32 and the sliding piece 40 can be kept relatively still, and the second hinge element 32 and the sliding piece 40 can be controlled to move together relative to the first hinge element 31.

It should be noted that "the hinge assembly 30 is in the opening process" means that the second hinge member 32 is opened in a direction away from the first hinge member 31, that is, the second hinge member 32 is acted in one direction to drive the second hinge member 32 to move in a direction away from the first hinge member 31, and when the hinge assembly 30 is mounted on the refrigerator 100, the opening process of the hinge assembly 30 corresponds to the opening process of the door 20.

In this embodiment, the second hinge member 32 and the sliding piece 40 move together relative to the first hinge member 31, and then the rotating assembly 50 drives the second hinge member 32 to move relative to the sliding piece 40, so that it can be seen that two movements are realized in the whole opening process of the hinge assembly 30, the position change of the rotating shaft can be realized in the two movement processes, the movement track of the door body can be effectively controlled, and further the degree of freedom of the opening and closing process of the door body 20 of the refrigerator 100 is improved, especially in the field of embedded refrigerators, and the mutual interference between the door body 20 and the surrounding cabinets or walls in the opening and closing process can be avoided by switching the rotating shaft.

In the present embodiment, the hinge assembly 30 includes a first shaft 311 and a second shaft 312 disposed on the first hinge member 31, and a first slot 401 and a second slot 402 disposed on the sliding piece 40, wherein the first slot 401 is matched with the first shaft 311, and the second slot 402 is matched with the second shaft 312.

Here, the example that the second shaft 312 extends to the mutually overlapped limiting protrusion 322 and the second groove 402, and the first shaft 311 extends only to the first groove 401 will be described.

In the present embodiment, when the hinge assembly 30 is in the process of being opened from the closed state to the first opening angle α 1, the second hinge 32 and the sliding piece 40 rotate relative to the first hinge 31 around the first rotation axis P1, and when the hinge assembly 30 is in the process of being continuously opened from the first opening angle α 1 to the second opening angle α 2, the second hinge 32 rotates relative to the sliding piece 40 around the second rotation axis P2, and the second rotation axis P2 and the first rotation axis P1 are offset from each other, that is, the position of the second rotation axis P2 does not coincide with the position of the first rotation axis P1.

Here, the first rotation axis P1 may be a virtual axis or a physical axis.

The virtual axis refers to an axis body that is not substantially present in the hinge assembly 30, and the physical axis refers to a component actually included in the hinge assembly 30.

In addition, the first rotation axis P1 may be a non-fixed axis or a fixed axis.

The non-fixed shaft means that the position of the first rotating shaft P1 is always in a changing process, that is, the relative position between the first rotating shaft P1 and the cabinet 10 or the door 20 is changed, and the fixed shaft means that the position of the first rotating shaft P1 is fixed, that is, the relative position between the first rotating shaft P1 and the cabinet 10 or the door 20 is fixed.

Similarly, the second rotation axis P2 may be a virtual axis or a solid axis, and the second rotation axis P2 may be a non-fixed axis or a fixed axis, and the second rotation axis P2 and the first rotation axis P1 are offset from each other, that is, the position of the second rotation axis P2 is not consistent with the position of the first rotation axis P1.

It can be seen that the hinge assembly 30 of the present embodiment can effectively control the sequence of the two rotations, and the change of the position of the rotation axis exists in the two rotation processes, so as to effectively control the movement track of the door 20, and further improve the degree of freedom of the opening and closing processes of the door 20 of the refrigerator 100, especially in the field of embedded refrigerators, and the mutual interference between the door 20 and the surrounding cabinets or walls in the opening and closing processes can be avoided by switching the rotation axis.

To further explain the motion trace of the hinge assembly 30, referring to fig. 5, a simple schematic diagram of the hinge assembly 30 assembled to the refrigerator 100 and the refrigerator 100 embedded in the cabinet 200 is taken as an example for explanation.

The box 10 includes an opening 102 and a front end surface 103 surrounding the opening 102, the box 10 further includes an accommodating chamber D and an outer side surface 13 adjacent to the hinge assembly 30 and on an extension section of a rotation path of the door 20, the door 20 includes a front wall 21 far away from the accommodating chamber D and a side wall 22 always sandwiched between the front wall 21 and the accommodating chamber D, and a side edge 23 is provided between the front wall 21 and the side wall 22.

The hinge assembly 30 is configured to: when the first rotating shaft P1 is actuated, a first distance is formed between the first rotating shaft P1 and the front end surface 103 of the case 10, and when the second rotating shaft P2 is actuated, a second distance is formed between the second rotating shaft P2 and the front end surface 103 of the case 10, and the second distance is greater than the first distance.

In addition, when the first rotation axis P1 is operated, a third distance is formed between the first rotation axis P1 and the outer side surface 13 of the casing 10, and when the second rotation axis P2 is operated, a fourth distance is formed between the second rotation axis P2 and the outer side surface 13 of the casing 10, and the fourth distance is smaller than the third distance.

Here, the "first rotation axis P1 is actuated" means that the first rotation axis P1 is in an operating state, that is, the second hinge member 32 rotates together with the slide piece 40 with respect to the first hinge member 31, and similarly, the "second rotation axis P2 is actuated" means that the second rotation axis P2 is in an operating state, that is, the second hinge member 32 rotates with respect to the slide piece 40.

Note that, the distance is a distance between the first and second rotation axes P1 and P2 and the front end surface 103 and the outer side surface 13 of the box 10 when the hinge assembly 30 moves to a certain position, and is not a distance in the closed state.

The concrete description is as follows:

in practice, in order to improve the insertion effect, it is preferable that the refrigerator 100 is completely inserted into the cabinet 200, and the refrigerator 100 is a free-insertion type refrigerator, that is, the front end 201 of the cabinet 200 is located on the same plane with the front wall 21 of the door 20 on the side away from the cabinet 10, or the front wall 21 of the door 20 does not protrude out of the front end 201 of the cabinet 200 at all.

In the prior art, all refrigerators are single-shaft refrigerators, and a certain distance needs to be kept between a rotating shaft of the refrigerator and a side wall and a front wall of the refrigerator, so that a sufficient space can be provided to satisfy foaming or other processes, that is, the rotating shaft of the existing refrigerator is approximately located at a position of a single-shaft P3 in fig. 5, in this case, after the single-shaft refrigerator is embedded into a cabinet 200, since an edge 203 of the cabinet 200, which is clamped between a front end 201 and an inner wall 202, is arranged corresponding to a side edge 23 of a door 20, when the door 20 is opened, the side edge 23 interferes with the door 20 to limit a maximum opening angle of the door 20, and in order to ensure normal opening of the door 20, a common method in the prior art is to increase a distance between the inner wall 202 of the cabinet 200 and the refrigerator 100, the distance needs to be approximately 10cm, and the embedding effect is seriously affected, and the limited space is not beneficial to reasonable utilization of the space.

With reference to fig. 5, the shaded area represents the door 20 in a closed state, when the door 20 is in an opening process, if the door 20 always rotates around the single-axis shaft P3 as a central axis (i.e. the prior art), referring to the dotted-line door 20 'in fig. 5, since the single-axis shaft P3 is close to the front end surface 103, that is, the single-axis shaft P3 is far away from the front end 201 of the cabinet 200, after the door 20' is opened to a certain angle, the corner 203 of the cabinet 200 interferes with the door 20 'to limit the maximum opening angle of the door 20'.

In the present embodiment, the door body 20 rotates about the first rotation axis P1, specifically, the second hinge 32 and the sliding sheet 40 rotate together with the first hinge 31 by a certain angle, and along with the change of the positions of the second hinge 32 and the sliding sheet 40, the relative position of the second rotation axis P2 to the box 10 also changes, the second rotation axis P2 gradually moves away from the front end surface 103, that is, the second rotation axis P2 gradually moves toward the front end 201 of the cabinet 200, at this time, the door body 20 rotates about the second rotation axis P2 at the current position as the central axis, because the second rotation axis P2 at this time is farther away from the front end surface 103 of the box 10 than the first rotation axis P1, referring to the solid line door body 20 in fig. 5, the interference effect of the edges 203 of the cabinet 200 on the door body 20 is greatly reduced, and the edges 203 of the cabinet 200 interfere with each other before the door body 20 opens to a larger angle, so that the maximum opening angle of the door body 20 is greatly increased.

That is to say, in the embodiment, the door body 20 is switched to rotate around the second rotation axis P2 after being opened to a certain angle, so that the maximum opening angle of the door body 20 can be effectively increased on the premise that the refrigerator 100 is freely embedded into the cabinet 200, the user can operate the refrigerator 100 conveniently, and the user experience can be greatly improved.

In addition, in the embodiment, the distance between the inner wall 202 of the cabinet 200 and the refrigerator 100 does not need to be increased, the refrigerator 100 can be connected with the cabinet 200 in a seamless manner, and the embedding effect is greatly improved.

In addition, while the second rotation axis P2 of the present embodiment gradually moves toward the direction close to the front end 201 of the cabinet 200, the second rotation axis P2 also gradually moves close to the inner wall 202 of the cabinet 200, that is, when the door 20 rotates around the second rotation axis P2 as the central axis, the second rotation axis P2 is closer to the front end 201 and the inner wall 202 of the cabinet 200 than the first rotation axis P1, so that the maximum opening angle of the door 20 can be increased, the door 20 can be away from the box 10 to increase the opening degree of the box 10, and the opening and closing of the racks, drawers, and the like in the box 10, or the taking and placing of the articles can be facilitated.

Of course, the second rotation axis P2, which is finally used as the central axis, may be located at other positions, for example, when the door 20 rotates around the second rotation axis P2, the second rotation axis P2 is closer to the front end 201 of the cabinet 200 than the first rotation axis P1, and the second rotation axis P2 is farther away from the inner wall 202 of the cabinet 200 than the first rotation axis P1.

It can be understood that the slide sheet 40 controls the switching sequence of the first hinge member 31 and the second hinge member 32 during the opening and closing processes of the door 20, so as to effectively prevent the door 20 from interfering with the cabinet 200 during the opening and closing processes.

In this embodiment, with reference to fig. 2 to 5, the second shaft 312 includes two second protruding columns 3121, and the two second protruding columns 3121 cooperate to form the second sliding slot 314.

Here, the second boss 3121 is a cylindrical boss.

Thus, when the second sliding slot 314 moves relative to the second protrusion 322, the two second protruding posts 3121 are substantially located at two sides of the second protrusion 322 and slide relative to the second protrusion 322, so that the friction between the second sliding slot 314 and the second protrusion 322 can be reduced, and the problem that the second sliding slot 314 and the second protrusion 322 are jammed and cannot move continuously during the sliding process is avoided.

In this embodiment, the second shaft 312 further includes a second shaft body 3122 connected to the first hinge member 31, and two second protruding columns 3121 are located on a side of the second shaft body 3122 away from the first hinge member 31.

Here, the second shaft body 3122 and the second groove 402 are engaged with each other, and the diameter of the second shaft body 3122 and the opening width of the second groove 402 are matched with each other, so that the second shaft body 312 and the second groove 402 can be prevented from shaking with each other.

Of course, in other embodiments, in conjunction with fig. 6, the two second posts 3121 may be directly connected to the first hinge member 31.

In this embodiment, the hinge assembly 30 further includes an extension 324 connected to the limiting protrusion 322, and when the second hinge member 32 moves relative to the sliding piece 40, the second sliding slot 314 slides relative to the extension 324.

The extension 324 is a circular arc protrusion, and a central axis of the circular arc protrusion is a second rotation axis P2.

Here, the second hinge 32 and the sliding piece 40 are substantially matched through two parts, one part is the connection of the rotating assembly 50, and the other part is the second slot 402 and the limiting protrusion 322 which are matched with each other, wherein, since the central axis of the second shaft 312 when rotating relative to the limiting protrusion 322 is the first rotating axis P1 and the central axis of the rotating assembly 50 when rotating is the second rotating axis P2, the second hinge 32 cannot rotate simultaneously with the first rotating axis P1 and the second rotating axis P2 which are not in accordance with each other, that is, when the second shaft 312 slides at the limiting protrusion 322, the rotating assembly 50 cannot drive the second hinge 32 to rotate relative to the sliding piece 40, that is, the second hinge 32 and the sliding piece 40 are stationary at this time.

Specifically, when the hinge assembly 30 is in a process of being opened from a closed state to the first opening angle α 1, the second shaft 312 passes through the second sliding slot 314 and is limited at the limiting protrusion 322, due to the limiting effect of the second shaft 312 on the limiting protrusion 322, the second hinge 32 cannot rotate relative to the sliding piece 40 with the second rotating shaft P2 as a central axis, that is, the second hinge 32 and the sliding piece 40 are relatively stationary, at this time, through the movement of the second shaft 312 at the second slot 402 and the limiting protrusion 322, the second hinge 32 and the sliding piece 40 can rotate together relative to the first hinge 31 until the first shaft 311 is limited at the first slot 401 and/or the second shaft 312 is limited at the second slot 402, at this time, the sliding piece 40 cannot rotate relative to the first hinge 31 any more, and the first hinge 31 and the sliding piece 40 are locked with each other.

Then, when the hinge assembly 30 is in the process of continuously opening from the first opening angle α 1 to the second opening angle α 2, since the hinge assembly 30 further has the extending portion 324 connected to the limiting protrusion 322, the second shaft 312 moves at the extending portion 324 around the second rotation axis P2, so as to drive the second hinge 32 to rotate relative to the sliding piece 40, and meanwhile, since the first shaft 311 and the second hinge 32 are spaced apart from each other, the first shaft 311 does not hinder the second hinge 32 from rotating relative to the sliding piece 40.

It is understood that in other embodiments, other structures may be added to keep the second hinge element 32 and the slide 40 relatively stationary during the opening process from the closed state to the first opening angle α 1.

In addition, in the present embodiment, the second hinge member 32 and the sliding piece can be locked to each other by the cooperation of the second shaft 312 and the rotating assembly 50, and at this time, the structure of the second hinge member 32 can be simplified, thereby achieving the miniaturization of the overall structure of the hinge assembly 30.

In the present embodiment, the second rotation axis P2 is a fixed axis, and the second hinge member 32 is pivoted relative to the slide plate 40 about the second rotation axis P2.

The second rotation axis P2 may be a virtual axis or a physical axis, which may be determined according to actual conditions.

In the present embodiment, with reference to fig. 2 to fig. 5, the rotating assembly 50 includes a third shaft 403 and a circular hole 325 between the sliding piece 40 and the second hinge element 32, and the third shaft 403 rotates in the circular hole 325 as the second rotating shaft P2.

Here, the second rotation axis P2 is a solid axis, the third axis 403 is located on a side of the sliding piece 40 close to the second hinge element 32, the circular hole 325 is located on the second hinge element 32, when the second hinge element 32 rotates relative to the sliding piece 40, the third axis 403 rotates in the circular hole 325, and the second axis 312 slides in the extending portion 324.

The rotating assembly 50 further includes a protrusion 326 and a slide 404 located between the slide 40 and the second hinge 32, and the protrusion 326 slides in the slide 404 around the second rotating axis P2.

At this time, when the second hinge element 32 rotates relative to the sliding piece 40, the third shaft 403 rotates in the circular hole 325, and the protrusion 326 slides in the sliding track 404 around the second rotation axis P2, so as to improve the stability of the second hinge element 32 rotating relative to the sliding piece 40.

In addition, when the protrusion 326 slides in the slide 404 to the end of the slide 404 (i.e. when the protrusion 326 slides to the limit position), the first hinge 32 cannot rotate with respect to the slide 40, i.e. the maximum opening angle of the door 20 can be controlled by the length of the slide 404, but not limited thereto.

In the present embodiment, since the extending portion 324 has a poor limiting effect on the second shaft 312, when the rotating assembly 50 only includes the third shaft 403 and the circular hole 325, there may be a mutual shaking phenomenon between the second hinge 32 and the sliding piece 40, and in order to avoid such a shaking phenomenon, the rotating assembly 50 further includes a protrusion 326 and a slide 404, which can assist the second hinge 32 to stably rotate relative to the sliding piece 40.

In the present embodiment, the protrusion 326 is located on the second hinge 32, the protrusion 326 is a rib 326, the slide 404 is located on the slide 40, and the slide 404 penetrates through the first slot 401 and/or the second slot 402.

Here, the rib 326 is an arc-shaped rib having a certain length, the slide 404 is an arc groove having the second rotation axis P2 as a central axis, and the "slide 404 penetrates the first slot 401 and/or the second slot 402" means that an extending track of the slide 404 is communicated with the first slot 401 and/or the second slot 402, and the rib 326 can slide in the slide 404 and enter the first slot 401 and/or the second slot 402.

When the sliding channel 404 penetrates through the first slot 401, the protruding rib 326 moves in the sliding channel 404 and penetrates through the first slot 401, the protruding rib 326 is matched with the first slot 401 to limit the first shaft 311, specifically, the protruding rib 326 is matched with the end of the first slot 401 to limit the first shaft 311, and the protruding rib 326 is tangent to the outer contour of the first shaft 311.

In other embodiments, the slide 404 may also be directly located on the first shaft 311 and/or the second shaft 312, and the limit of the first shaft 311 and/or the second shaft 312 is directly achieved through the cooperation of the rib 326 and the slide 404.

It can be understood that, when the door 20 is closed from the maximum opening angle, if the first shaft 311 and the second shaft 312 are not limited at this time, the first shaft 311 may move back in the first slot 401 and the second shaft 312 may move back in the second slot 402, that is, the reset movement of the sliding piece 40 may be earlier than the reset movement of the second hinge piece 32, so that there is a risk that the movement track of the door 20 when closed is not controlled.

In this embodiment, the first shaft 311 and/or the second shaft 312 are/is limited by the cooperation of the protruding rib 326 and the sliding track 404, so that when the door 20 is closed at the maximum opening angle, only when the first shaft 311 and the second shaft 312 are/is separated from the limitation of the protruding rib 326, the sliding sheet 40 can rotate, that is, when the door 20 is closed at the maximum opening angle, the second hinge 32 is driven to reset by the movement of the protruding rib 326 in the sliding track 404 until the protruding rib 326 is separated from the first slot 401 and/or the second slot 402, and the limitation protrusion 322 and the second slot 402 are reset, and then the second hinge 32 and the sliding sheet 40 are driven to reset together by the movement of the first shaft 311 in the first slot 401, and the movement of the second shaft 312 in the second slot 402 and the limitation protrusion 322.

In this embodiment, referring to fig. 7, the protruding rib 326 is located on a side surface of the second hinge 32 close to the sliding piece 40, the sliding channel 404 only penetrates through the second slot 402, the sliding channel 404 extends to two sides of the second slot 402, the protruding rib 326 moves in the sliding channel 404 and penetrates through the second slot 402, the protruding rib 326 is matched with an end of the second slot 402 to limit the second shaft 312, that is, a part of the second shaft 312 abuts against an end of the second slot 402, and another part of the second shaft 312 is tangent to the protruding rib 326.

It should be noted that when the rib 326 slides to the end of the slide 404, a portion of the rib 326 remains within the second slot 402 to restrain the second shaft 312.

In other embodiments, the rib 326 may only pass through the first slot 401 to limit the position of the first shaft 311.

Or the protruding ribs 326 simultaneously penetrate through the first slot 401 and the second slot 402 to simultaneously limit the first shaft 311 and the second shaft 312, and at this time, the protruding ribs 326 may be two protruding ribs separately arranged.

Alternatively, the ribs 326 may extend only directly through the second shaft 312.

Specifically, referring to fig. 8, a limiting column 3123 is further disposed on a side of the second shaft body 3122 away from the first hinge element 31, the limiting column 3123 cooperates with the second protruding column 3121 to form a gap, and the protruding rib 326 may pass through the gap (i.e., the protruding rib 326 passes through the second shaft body 312) to limit the second shaft body 312.

Alternatively, the rib 326 may pass directly through only the first shaft body 311.

Here, a notch or a structure similar to the second shaft 312 may be formed on a side of the first shaft 311 away from the first hinge member 31.

Alternatively, the rib 326 passes through the first shaft 311 and the second shaft 312 directly.

Alternatively, the slide 404 only penetrates the first slot 401, and the rib 326 penetrates both the slide 404 and the first shaft 311.

Alternatively, the slide 404 extends through only the second slot 402, and the rib 326 extends through both the slide 404 and the second shaft 312.

Alternatively, the slide 404 penetrates through the first slot 401 and the second slot 402, and the rib 326 penetrates through the slide 404, the first shaft 311 and the second shaft 312.

In other embodiments, the protrusion 326 and the slide 404 may have other configurations.

For example, referring to fig. 9, the protrusion 326 is located on the second hinge 32, the protrusion 326 is a protruding pillar 326, the slide 404 is located on the sliding piece 40, the slide 404 and the first slot 401 are staggered, and the slide 404 and the second slot 402 are staggered.

At this time, when the second hinge element 32 rotates relative to the slide 40, the protruding pillar 326 slides in the sliding channel 404 until the protruding pillar 326 abuts against the end of the sliding channel 404, and the positions of the sliding channel 404 and the protruding pillar 326 can be interchanged.

Of course, the rotating assembly 50 can be other than the protrusion 326 and the sliding track 404, for example, the second hinge member 32 has an elastic member, and the sliding piece has a limiting hole, so that when the second hinge member 32 rotates relative to the sliding piece 40, the elastic member slides on the bottom of the sliding piece until the elastic member is limited in the limiting hole.

In the present embodiment, when the hinge assembly 30 is in the process of being opened from the closed state to the first opening angle α 1, that is, when the second hinge part 32 moves together with the slide piece 40 with respect to the first hinge part 31, the door body 20 includes a plurality of movement traces.

Referring to fig. 10, in a first motion trajectory, the first shaft 311 rotates in situ in the first slot 401 as a first rotation axis P1, and the second shaft 312 moves in the second slot 402 around the first rotation axis P1.

That is, in the whole opening process of the door 20, the motion trajectory of the door 20 is: the door 20 rotates in situ around the first rotation axis P1, and then the door 20 is switched to rotate in situ around the second rotation axis P2.

In the first movement path, the second shaft 312 and the second slot 402 may be omitted, and the door 20 is driven to rotate in situ around the first rotation axis P1 only by the rotation in situ of the first shaft 311 in the first slot 401.

Referring to fig. 11, in the second motion trajectory, the first slot 401 and the second slot 402 are both long, and when the hinge assembly 30 is opened from the closed state to the first opening angle α 1, the second shaft 312 moves in the second slot 402 to drive the first shaft 311 to move in the first slot 401, and the door 20 generates a translation amount relative to the box 10.

Here, the "door 20 makes a translation with respect to the refrigerator body 10" means that the door 20 makes a translation during the rotation with respect to the refrigerator body 10, and when corresponding to a refrigerator, the translation means a horizontal movement, that is, the door 20 makes a horizontal movement with respect to the refrigerator body 10 in addition to the rotation with respect to the refrigerator body 10.

That is, in the whole opening process of the door 20, the motion trajectory of the door 20 is: the door body 20 rotates and translates about the first rotation axis P1, and then the door body 20 is switched to rotate about the second rotation axis P2.

Next, various specific examples of the translation of the door body 20 will be described.

In a first specific example, referring to fig. 11, the cabinet 10 includes a receiving chamber D and a pivoting side P to which the hinge assembly is connected, and the door body 20 moves from the pivoting side P toward the receiving chamber D when the hinge assembly 30 is in the process of being opened from the closed state to the first opening angle α 1.

Specifically, the first slot 401 includes an initial position A1 and a first stop position A2, when the hinge assembly 30 is in the closed state, the first shaft 311 is located at the initial position A1, the second shaft 312 is located at one end of the second slot 402, when the hinge assembly 30 is in the process of opening from the closed state to the first opening angle α 1, the second shaft 312 moves in the second slot 402 to drive the first shaft 311 to move from the initial position A1 to the first stop position A2, and the door 20 moves from the pivot side P toward the accommodating chamber D.

That is, the door 20 moves a certain distance in a direction away from the cabinet 200, so as to prevent the door 20 from interfering with the cabinet 200 during the initial opening process.

Here, the door 20 includes a front wall 21 distant from the housing chamber D and a side wall 22 interposed between the front wall 21 and the housing chamber D all the time, and the initial position A1 is distant from the front wall 21 and the side wall 22 as compared to the first stop position A2.

In a second specific example, referring to fig. 12, the first slot 401 includes an initial position A1 and a first stop position A2, the second slot 402 includes a first section L1 and a second section L2 connected to each other, when the hinge assembly 30 is in the process of opening from the closed state to the first intermediate opening angle α 11, the first shaft 311 is kept at the initial position A1, the second shaft 312 moves in the first section L1 with the first shaft 311 as the center axis, when the hinge assembly 30 is in the process of continuing to open from the first intermediate opening angle α 11 to the first opening angle α 1, the second shaft 312 moves in the second section L2 to drive the first shaft 311 to move from the initial position A1 to the first stop position A2, and the door 20 moves from the pivot side P toward the accommodating chamber D.

That is, the door 20 rotates in situ by a certain angle and then moves a certain distance in the direction away from the cabinet 200, so as to prevent the door 20 from interfering with the cabinet 200 during the initial opening process.

Here, in the side-by-side refrigerator or the multi-door refrigerator having the vertical beam, having the left door and the right door arranged side by side, the door body 20 is rotated in situ at a certain angle to prevent the left door and the right door from interfering with each other.

In a third specific example, referring to fig. 13, the first slot 401 includes a first stop position A2, a second stop position A3 and an initial position A1 located between the first stop position A2 and the second stop position A3, the first slot 402 includes a first section L1, a second section L2 and a third section L3 connected in sequence, when the hinge assembly 30 is opened from the closed state to the first intermediate opening angle α 11, the first shaft 311 is kept at the initial position A1, the second shaft 312 moves around the first shaft 311 as a central axis in the first section L1, when the hinge assembly 30 is opened from the first intermediate opening angle α 11 to the second intermediate opening angle α 12, the second shaft 312 moves around the second section L2 to drive the first shaft 311 to move from the initial position A1 to the first stop position A2, the door 20 moves from the pivot side P toward the accommodating chamber D, when the hinge assembly 30 is opened from the second intermediate opening angle α 12 to the first opening angle α 1, and the door 20 moves around the second section P toward the accommodating chamber D when the hinge assembly 30 is opened from the second intermediate opening angle α 12 to the first opening angle α 1, and the door 20 moves from the second section P to the accommodating chamber P to the second intermediate opening angle P.

Here, when the door 20 moves from the receiving chamber D to the pivoting side P, the opening degree of the cabinet 10 can be increased as much as possible while preventing the door 20 and the cabinet 200 from interfering with each other, so that the door 20 can be prevented from obstructing the normal drawing of the drawer, the rack, and other components in the cabinet 10.

The initial position A1, the first stop position A2, and the second stop position A3 are located on the same straight line, and the initial position A1 is a position between the first stop position A2 and the second stop position A3, that is, a gap is provided between the initial position A1 and each of the first stop position A2 and the third stop position A3, but not limited thereto, the initial position A1 may overlap the second stop position A3, or the initial position A1, the first stop position A2, and the second stop position A3 may be located on different straight lines.

In another embodiment, with reference to fig. 14 and 15, the limiting protrusion 321 is matched with the first slot 401, the first shaft 311 extends to the first slot 401 and the limiting protrusion 321, the second shaft 312 extends to the second slot 402, and the second shaft 312 and the second hinge 32 are spaced apart from each other.

That is, the other embodiments are different from the foregoing embodiments in that: the limiting protrusion 321 and the first groove 401 in other embodiments are matched, and the limiting protrusion 322 and the second groove 402 in the previous embodiments are matched.

Other descriptions of the hinge assembly 30 in other embodiments may refer to the previous embodiments and are not repeated herein.

Although the present invention has been described in detail with reference to the preferred embodiments, for example, if technologies in different embodiments can be used in a superimposed manner to achieve corresponding effects, the technical solutions are also within the scope of the present invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.

Claims (26)

1. A hinge assembly with a plurality of grooves is characterized by comprising a first hinge part connected with a box body, a second hinge part connected with a door body, a sliding piece connected with the first hinge part and the second hinge part, two shaft bodies located on the first hinge part, two groove bodies located on the sliding piece, a limiting protrusion located on the second hinge part and a rotating assembly located between the sliding piece and the second hinge part, wherein one shaft body comprises a sliding groove, the shaft body penetrates through one of the groove bodies and extends to the second hinge part, the limiting protrusion is limited in the sliding groove, a central shaft when the shaft body rotates does not coincide with a central shaft when the rotating assembly rotates, the other shaft body extends into the other groove body, the other shaft body is located on one side, close to the sliding piece, when the hinge assembly is in an opening process, one of the shaft bodies moves relative to one of the groove bodies, the limiting protrusion moves relative to the other groove body, the other shaft body drives the second hinge part and the sliding piece to move relative to the first hinge part until the shaft body moves relative to the second hinge part, and then the second hinge part drives the sliding piece to move relative to the sliding piece.

2. The hinge assembly of claim 1, wherein the direction of extension of the limiting protrusion coincides with the direction of extension of the corresponding slot.

3. The hinge assembly of claim 1, wherein the shaft body includes two posts that cooperate to form the slot.

4. The hinge assembly of claim 3, wherein the shaft further comprises a shaft body coupled to the first hinge member, the boss being located on a side of the shaft body remote from the first hinge member.

5. The hinge assembly of claim 1, wherein the second hinge member and the slider rotate relative to the first hinge member about the first rotational axis when the hinge assembly is opened from the closed position to the first opening angle, and wherein the second hinge member rotates relative to the slider about the second rotational axis when the hinge assembly is opened from the first opening angle to the second opening angle.

6. The hinge assembly of claim 5, wherein the hinge assembly comprises a first shaft and a second shaft disposed on the first hinge member, and a first slot and a second slot disposed on the sliding piece, wherein the first slot and the first shaft are engaged with each other, and the second slot and the second shaft are engaged with each other.

7. The hinge assembly of claim 6, wherein the first shaft is rotated in situ within the first slot as the first rotation shaft, and the second shaft is moved within the second slot about the first rotation shaft.

8. The hinge assembly of claim 6, wherein the first slot and the second slot are elongated, and when the hinge assembly is opened from the closed position to the first opening angle, the second shaft moves within the second slot to drive the first shaft to move within the first slot, and the door translates relative to the housing.

9. The hinge assembly of claim 8, wherein the cabinet includes a receiving chamber and a pivoting side connected to the hinge assembly, and the door body is moved from the pivoting side toward the receiving chamber when the hinge assembly is in the process of being opened from the closed state to the first opening angle.

10. The hinge assembly of claim 9, wherein the first slot includes an initial position and a first stop position, and when the hinge assembly is in the closed state, the first shaft is located at the initial position, and the second shaft is located at one end of the second slot, and when the hinge assembly is opened from the closed state to a first opening angle, the second shaft moves in the second slot to drive the first shaft to move from the initial position to the first stop position, and the door moves from the pivot side toward the accommodating chamber.

11. The hinge assembly of claim 10, wherein the door body includes a front wall remote from the receiving chamber and a side wall interposed between the front wall and the receiving chamber, and wherein the initial position is remote from the front wall and the side wall compared to the first stop position.

12. The hinge assembly of claim 9, wherein the first slot includes an initial position and a first stop position, the second slot includes a first section and a second section that are connected, when the hinge assembly is in a process of opening from a closed state to a first intermediate opening angle, the first shaft is maintained at the initial position, the second shaft moves in the first section with the first shaft as a center axis, when the hinge assembly is in a process of continuing to open from the first intermediate opening angle to the first opening angle, the second shaft moves in the second section to drive the first shaft to move from the initial position to the first stop position, and the door moves from the pivot side toward the receiving chamber.

13. The hinge assembly of claim 9, wherein the first slot includes a first stop position, a second stop position, and an initial position between the first stop position and the second stop position, the second slot includes a first section, a second section, and a third section that are sequentially connected, when the hinge assembly is opened from a closed state to a first intermediate opening angle, the first shaft is maintained at the initial position, the second shaft moves within the first section about the first shaft, when the hinge assembly is continuously opened from the first intermediate opening angle to a second intermediate opening angle, the second shaft moves within the second section to drive the first shaft to move from the initial position to the first stop position, the door moves from the pivot side toward the receiving chamber, when the hinge assembly is continuously opened from the second intermediate opening angle to the first opening angle, the second shaft moves within the third section to drive the first shaft to move from the first stop position to the second stop position, and the door moves from the pivot side toward the receiving chamber.

14. The hinge assembly as claimed in claim 5, wherein the second rotation shaft is a fixed shaft, and the second hinge member is rotated in place with respect to the slide plate with the second rotation shaft as a central axis.

15. The hinge assembly of claim 14, wherein the second hinge member further comprises an extension portion coupled to the retention protrusion, wherein the shaft moves at the extension portion when the second hinge member moves relative to the slider.

16. The hinge assembly of claim 15, wherein the extension is a circular arc protrusion, and a central axis of the circular arc protrusion is the second rotation axis.

17. The hinge assembly of claim 14, wherein the second rotational axis is a virtual axis.

18. The hinge assembly of claim 14, wherein the rotation assembly comprises a third shaft between the slider and the second hinge element and a circular hole, the third shaft serving as the second rotation shaft to rotate in the circular hole.

19. The hinge assembly of claim 14, wherein the rotation assembly comprises a protrusion and a slide between the slide and the second hinge member, the protrusion sliding within the slide about the second rotational axis.

20. The hinge assembly of claim 19, wherein the protrusion is disposed on the second hinge member, the protrusion is a rib, and the slideway is disposed on the shaft.

21. The hinge assembly of claim 19, wherein the protrusion is disposed on the second hinge member, the protrusion is a rib, the sliding piece is provided with the slide rail, the slide rail penetrates through the slot, and when the second hinge member rotates relative to the sliding piece, the rib moves to the slot to limit the shaft.

22. The hinge assembly of claim 21, wherein the rib engages an end of the slot to retain the shaft.

23. The hinge assembly of claim 19, wherein the protrusion is a boss that slides within the slide.

24. The hinge assembly of claim 5, wherein the hinge assembly is configured to: when the first rotating shaft actuates, a first distance is reserved between the first rotating shaft and the front end face of the box body, when the second rotating shaft actuates, a second distance is reserved between the second rotating shaft and the front end face of the box body, and the second distance is larger than the first distance.

25. The hinge assembly of claim 5, wherein the hinge assembly is configured to: when the first rotating shaft actuates, a third distance is reserved between the first rotating shaft and the outer side face of the box body, when the second rotating shaft actuates, a fourth distance is reserved between the second rotating shaft and the outer side face of the box body, and the fourth distance is smaller than the third distance.

26. A household appliance comprising a cabinet, a door, and a hinge assembly connecting the cabinet and the door, wherein the hinge assembly is as defined in any one of claims 1 to 25.

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