CN117888788A - Lower hinge assembly and embedded refrigerator - Google Patents

Abstract

The invention provides a lower hinge assembly and an embedded refrigerator, wherein the lower hinge assembly comprises a fixed hinge part fixed on a box body and a movable hinge part fixed on a door body and movably connected with the fixed hinge part, a shaft body and a groove body matched with the shaft body are arranged between the fixed hinge part and the movable hinge part, and the shaft body and the groove body are matched to drive the movable hinge part to translate according to a preset track in the process that the movable hinge part rotates and opens in the direction away from the fixed hinge part; the bottom of the groove body is provided with a concave-convex structure, and in the process that the movable hinge piece rotates relative to the fixed hinge piece, the matching end of the shaft body positioned in the groove body is matched with the concave-convex structure, so that the shaft body can be positioned, and the door body can be positioned at a preset position; or under the dead weight of the door body, the shaft body can be guided to realize the power-assisted door closing or the power-assisted door opening, so that the effect of saving power is achieved.

Description

Lower hinge assembly and embedded refrigerator

Technical Field

The invention relates to the field of refrigeration equipment, in particular to a lower hinge assembly for an embedded refrigerator and the embedded refrigerator with the lower hinge assembly.

Background

In general, the refrigerator and the door body are relatively moved by a fixed hinge, and the door body rotates around a fixed axis, so that the opening and closing degrees of freedom of the door body are greatly limited, namely, the movement track of the door body cannot be freely controlled to adapt to different application scenes.

With the improvement of society, the living standard of people is improved, the placing position and the placing mode of the refrigerator in the family are more and more watched by the common user, and aiming at the current family decoration style, part of families pursue style integration, the refrigerator needs to be placed in a cabinet to form a so-called embedded refrigerator, and the refrigerator with a door body rotating around a fixed axis is difficult to adapt to the embedded application scene, namely, interference can be generated between the door body and the cabinet when the door is opened.

The existing part embedded refrigerator is connected between the refrigerator body and the door body by adopting a double-shaft double-groove structure, so that the door body is driven to translate according to a preset track when the door body is rotated and opened, and interference between the door body and a cabinet is avoided. However, the door body cannot realize a hovering function in the opening process; meanwhile, the power-assisted door closing cannot be achieved, rebound of the door body is easy to occur when the door is closed, the problem that the door is closed at a small angle is not tight is solved, and the use experience of a user is affected.

Disclosure of Invention

The invention aims to provide a lower hinge assembly and an embedded refrigerator with the same.

In order to achieve the aim of the invention, the invention adopts the following technical scheme: the lower hinge assembly comprises a fixed hinge piece fixed on a box body and a movable hinge piece fixed on a door body and movably connected with the fixed hinge piece, wherein a shaft body and a groove body matched with the shaft body are arranged between the fixed hinge piece and the movable hinge piece, and in the process that the movable hinge piece rotates and opens in the direction away from the fixed hinge piece, the shaft body and the groove body are matched to drive the movable hinge piece to translate according to a preset track; the bottom of the groove body is provided with a concave-convex structure, and in the process that the movable hinge piece rotates relative to the fixed hinge piece, the matching end of the shaft body positioned in the groove body is matched with the concave-convex structure.

As a further improved technical scheme of the invention, the groove body is provided with a closing section, when the movable hinge piece rotates from a preset closing angle towards the fixed hinge piece to be closed to a closing state, the shaft body moves along the closing section, the matching end of the shaft body is abutted against the groove bottom of the closing section, and the concave-convex structure comprises the groove bottom positioned at the closing section; the closing section comprises a first end and a second end which are opposite, when the movable hinge piece is closed to a preset closing angle, the shaft body is positioned at the second end, when the movable hinge piece is in a closing state, the shaft body is positioned at the first end, the second end faces the direction of the first end, and the bottom of the closing section obliquely extends to the depth direction of the groove body.

As a further improved technical solution of the present invention, the preset closing angle is 15 °.

As a further improved technical scheme of the invention, the shaft body comprises a first shaft body and a second shaft body, and the groove body comprises a first groove body matched with the first shaft body and a second groove body matched with the second shaft body; the fixed hinge piece is provided with a pivoting side, and the direction from the center of the fixed hinge piece to the pivoting side is a first direction; the first groove body comprises an initial position and a first stop position, and the second groove body comprises a third end, a fourth end, a first section and a second section which are oppositely arranged, are positioned between the third end and the fourth end and are connected; when the movable hinge piece is in a closed state, the first shaft body is positioned at an initial position, the second shaft body is positioned at a third end, when the movable hinge piece is opened from the closed state to a first opening angle, the first shaft body is kept at the initial position, the second shaft body takes the first shaft body as a circle center and moves in the first section, and when the movable hinge piece is continuously opened from the first opening angle to a second opening angle, the second shaft body moves in the second section to drive the first shaft body to move from the initial position to the first stopping position and drive the movable hinge piece to translate along a first direction; the closing section is located within the first section.

As a further improved technical scheme of the invention, the concave-convex structure further comprises a guide inclined plane positioned at one side of the initial position towards the first stop position, and the guide inclined plane extends to the initial position in an inclined way towards the depth direction of the groove body from the first stop position towards the initial position; the second shaft body is positioned at the second end when the movable hinge member is turned toward the fixed hinge member to be closed until the first shaft body is positioned at the initial position.

As a further improved technical scheme of the invention, the concave-convex structure comprises a limiting groove, and after the movable hinge part rotates to be opened in a direction away from the fixed hinge part until the shaft body is positioned in the limiting groove, the movable hinge part is limited at a preset opening angle.

As a further improved technical scheme of the invention, the preset opening angle is not smaller than 90 degrees.

As a further improved technical scheme of the invention, the shaft body comprises a first shaft body and a second shaft body, and the groove body comprises a first groove body matched with the first shaft body and a second groove body matched with the second shaft body; the first groove body comprises an initial position, a first stopping position and a pivoting position which is positioned at one side of the initial position far away from the first stopping position, the second groove body comprises a third end and a fourth end which are oppositely arranged, when the movable hinge piece is in a closed state, the first shaft body is positioned at the initial position, the second shaft body is positioned at the third end, and when the movable hinge piece is rotated to be opened to a maximum opening angle, the second shaft body moves from the third end to the fourth end along the second groove body to drive the first shaft body to reciprocate in the first groove body; the limiting groove is arranged in the second groove body.

As a further improved technical scheme of the invention, the matched end is in a convex hemispherical shape.

In order to achieve the above object, the present invention further provides an embedded refrigerator, including a refrigerator body, a door body for opening or closing the refrigerator body; the embedded refrigerator further comprises the lower hinge assembly which is movably connected to the door body on the refrigerator body.

The beneficial effects of the invention are as follows: according to the lower hinge assembly, the concave-convex structure matched with the shaft body is arranged at the bottom of the groove, and under the action of the dead weight of the door body, the matched end of the shaft body can be abutted against the concave-convex structure at the bottom of the groove, so that the shaft body can be positioned, and the door body can be positioned at a preset position, such as limited at a preset opening angle or limited at a closed state; or under the dead weight of the door body, the shaft body can be guided to realize the power-assisted door closing or the power-assisted door opening, so that the effect of saving power is achieved.

Drawings

Fig. 1 is a schematic view of a refrigerator (door body in a closed state) according to an embodiment of the present invention;

FIG. 2 is an exploded view of the lower hinge assembly of FIG. 1;

fig. 3 is a bottom view of the first shaft, first tub, second tub, and second tub of the lower hinge assembly of the refrigerator shown in fig. 1 (door in closed state, not shown with a concave-convex structure);

fig. 4 is a bottom view of the mating first shaft, first slot, second shaft, second slot of the lower hinge assembly of the refrigerator shown in fig. 1 (door at a first opening angle, no relief structure shown);

fig. 5 is a bottom view of the mating first shaft, first slot, second shaft, second slot of the lower hinge assembly of the refrigerator shown in fig. 1 (door at a second opening angle, no relief structure shown);

fig. 6 is a bottom view of the mating first shaft, first tub, second shaft, second tub (door rotated open from second open angle to third open angle, without showing the concavo-convex structure) of the lower hinge assembly of the refrigerator shown in fig. 1;

fig. 7 is a bottom view of the mating first shaft, first tub, second tub of the lower hinge assembly of the refrigerator of fig. 1 (door at maximum opening angle, no relief structure shown);

fig. 8 is a schematic structural view of the refrigerator shown in fig. 1 (door body in a hovering state).

Detailed Description

The present invention will be described in detail below with reference to the embodiments shown in the drawings, and in detail, reference is made to fig. 1-8, which illustrate a preferred embodiment of the present invention, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. It should be understood that these embodiments are not intended to limit the present invention, and that functional, method, or structural equivalents and alternatives falling within the scope of the present invention may be modified by any person skilled in the art to include such embodiments.

In the drawings of the present invention, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for convenience of illustration, and thus serve only to illustrate basic structures of the subject matter of the present invention.

Terms such as "left," "right," "front," "rear," and the like, as used herein, refer to a spatial relative position, and are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terms first, second, third, fourth, etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated; furthermore, unless explicitly stated and limited otherwise, the term "coupled" should be interpreted broadly, as for example, the coupling may be direct or indirect via intermediaries, and may be fixed or movable or removable or an integral connection. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-2, a lower hinge assembly 3 and an embedded refrigerator 10 having the lower hinge assembly 3 according to an embodiment of the present invention are shown. The embedded refrigerator 10 is used for being embedded in the cabinet 20, but not limited to this, and the embedded refrigerator 10 may be embedded in a wall or the like.

The embedded refrigerator 10 comprises a refrigerator body 1, a door body 2 for opening or closing the refrigerator body 1, and a hinge assembly for movably connecting the door body 2 to the refrigerator body 1. During the process of opening the door body 2 in a rotating way in a direction away from the box body 1, the hinge assembly drives the door body 2 to translate along a preset track so as to avoid interference between the door body 2 and the cabinet 20.

Specifically, the hinge assembly includes an upper hinge assembly disposed above the door body 2 and a lower hinge assembly 3 disposed below the door body 2. The invention is not limited to the specific structure of the upper hinge assembly, as long as the upper hinge assembly and the lower hinge assembly 3 cooperate to drive the door body 2 to translate along a preset track in the process of rotating the door body 2.

Referring to fig. 2, the lower hinge assembly 3 includes a fixed hinge member 31 fixed on the case 1, a movable hinge member 32 fixed on the door 2 and movably connected with the fixed hinge member 31, and a shaft 33 and a slot 34 matched with the shaft 33 are disposed between the fixed hinge member 31 and the movable hinge member 32. In the process of rotating the door body 2, the shaft body 33 cooperates with the groove body 34 to drive the door body 2 to translate according to a preset track.

It can be known that, during the rotation of the door body 2, the movable hinge member 32 moves synchronously with the door body 2, and the door body 2 translates along a predetermined track, that is, the movable hinge member 32 translates along the predetermined track.

Further, the groove bottom 341 of the groove 34 has a concave-convex structure, and the mating end 331 of the shaft 33 located in the groove 34 mates with the concave-convex structure during the rotation of the door 2 relative to the case 1. It can be known that, under the action of the gravity of the door body 2, the mating end 331 will abut against the concave-convex structure of the groove bottom 341, so that the shaft body 33 can be positioned, and the door body 2 can be positioned at a preset position, such as limited at a preset opening angle or limited at a closed state; or under the dead weight of the door body 2, the shaft body 33 can be guided to realize the power-assisted door closing or the power-assisted door opening, so as to achieve the effect of saving power.

According to the invention, the concave-convex structure with the limiting/guiding function is arranged on the groove bottom 341, so that the limiting/guiding function of the door body 2 can be realized, and the structure of the lower hinge assembly 3 is simplified.

Further, the slot 34 has a closing section 342, when the movable hinge member 32 rotates from a preset closing angle toward the fixed hinge member 31 to a closed state, the shaft 33 moves along the closing section 342, the mating end 331 of the shaft 33 abuts against the slot bottom 341 of the closing section 342, and the concave-convex structure includes the slot bottom 341 located in the closing section 342. The closing section 342 includes a first end and a second end opposite to each other, the shaft body 33 is located at the second end when the movable hinge member 32 is closed to a preset closing angle, the shaft body 33 is located at the first end when the movable hinge member 32 is in a closed state, and the groove bottom 341 of the closing section 342 extends obliquely to the depth direction of the groove 34 from the second end toward the first end. Under the action of the dead weight of the door body 2, the matching end 331 of the shaft body 33 moves along the groove bottom 341 of the closing section 342, so that the door body 2 rotates to be closed, and the door can be closed in a boosting manner, meanwhile, after the door body 2 is in a closed state, the shaft body 33 abuts against the first end of the closing section 342, and when the door body 2 is limited in the closed state, rebound after the door body 2 is closed can be avoided, and the problem of untight door closing is avoided.

In one embodiment, the preset closing angle is 15 °. That is, when the door body 2 is closed to 15 °, the mating end 331 of the shaft body 33 is located at the second end, and at this time, the user releases his hand, and under the dead weight of the door body 2, the mating end 331 of the shaft body 33 moves along the groove bottom 341 of the closing section 342, so that the door body 2 rotates to be closed, and the door closing assistance function is achieved. Of course, this is not a limitation.

Further, in the present embodiment, the shaft body 33 includes a first shaft body 332 and a second shaft body 333, and the groove 34 includes a first groove 343 matching with the first shaft body 332 and a second groove 344 matching with the second shaft body 333. In the process that the movable hinge 32 rotates and opens in a direction away from the fixed hinge 31, the first shaft 332 is matched with the first slot 343, and the second shaft 333 is matched with the second slot 344 to drive the movable hinge 32 to translate along a preset track, so as to drive the door 2 to translate along the preset track. In the present invention, the door body 2 is driven to move along a preset track in the rotation process by the cooperation of the double shafts (the first shaft body 332 and the second shaft body 333) and the double grooves (the first groove body 343 and the second groove body 344), compared with the single-shaft hinge, the present invention does not need high installation precision, and can greatly reduce the design cost and the installation difficulty.

In the present embodiment, the first shaft body 332 and the second shaft body 333 are both disposed on the fixed hinge member 31, and the first slot 343 and the second slot 344 are both disposed on the movable hinge member 32. Of course, the present invention is not limited to this, and in other embodiments, the first shaft body 332 and the second shaft body 333 may be disposed on the movable hinge 32, and the first groove 343 and the second groove 344 may be disposed on the fixed hinge 31.

Specifically, the fixed hinge member 31 includes a hinge plate fixed to the case 1, and the first shaft body 332 and the second shaft body 333 are both protruded on an upper surface of the hinge plate.

Further, as shown in connection with fig. 1, the stationary hinge member 31 has a pivoting side 311 at the pivoting end of the living hinge member 32. A direction from the center of the fixed hinge member 31 away from the pivoting side 311 is defined as a first direction X, and a direction from the center of the fixed hinge member 31 toward the pivoting side 311 is defined as a second direction Y.

Specifically, when the pivoted side 311 is the right side, the first direction X is the right-to-left direction, and the second direction Y is the left-to-right direction. When the pivoting side 311 is the left side, the first direction X is the left-to-right direction, and the second direction Y is the right-to-left direction.

Specifically, as shown in fig. 3 to 7 in combination, the recess and projection structure is not shown in fig. 3 to 7 for explaining the engagement between the shaft 33 and the groove 34 during the opening/closing of the door.

The first slot 343 includes an initial position A1 and a first stop position A2, and the second slot 344 includes a third end L1, a fourth end L2, a first segment L3 and a second segment L4 disposed between the third end L1 and the fourth end L2 and connected to each other. As shown in fig. 3, when the door 2 is in the closed state, the first shaft 332 is at the initial position A1, and the second shaft 333 is at the first end L1. The first segment L3 is an arc with the initial position A1 as a center. Referring to fig. 4, when the door 2 is opened from the closed state to the first opening angle, the first shaft 332 is maintained at the initial position A1, the second shaft 333 moves in the first section L3, and at this time, the door 2 rotates in place with the first shaft 332 at the initial position A1 as an axis, that is, the door 2 only rotates without displacement in other directions, which can effectively avoid that the door 2 cannot be opened normally due to displacement in a certain direction of the door 2, such as the door 2 with a turnover beam, and the protrusion on the turnover beam can be separated from the groove on the box 1, so that the door 2 can be opened smoothly. Referring to fig. 5, when the door 2 continues to be opened from the first opening angle to the second opening angle, the second shaft 333 moves in the second section L4 toward the second end L2 to drive the first shaft 332 to move from the initial position A1 to the first stop position A2, and at this time, the door 2 moves in the direction away from the pivoting side 311 along the first direction X in the rotating process, so as to avoid interference between the door 2 and the peripheral cabinet 20 or wall during the opening process, and is suitable for a scene with a smaller space for accommodating the embedded refrigerator 10.

Correspondingly, when the door is closed until the door body 2 is at the first opening angle, the first shaft body 332 is switched to the initial position A1, the second shaft body 333 is moved into the first section L3, and during the process that the door body 2 is continuously closed from the first opening angle, the first shaft body 332 is maintained at the initial position A1, and the second shaft body 333 is moved in the first section L3 until the door body 2 is in the closed state. At this time, the closing section 342 is located in the first section of the second groove 344, and the mating end 331 of the shaft 33 that mates with the closing section 342 is the end of the second shaft 333 that is located in the second groove 344. To assist in closing the door by the cooperation between the second shaft 333 and the closing section 342 in the final stage of closing the door.

It is known that the preset closing angle is not greater than the first opening angle.

Specifically, the first end of the closing segment 342 coincides with the third end of the second slot 344. Of course, this is not a limitation.

Further, as shown in fig. 2, the concave-convex structure further includes a guiding inclined surface 4 located at a side of the initial position A1 in the first groove 343 toward the first stop position A2, and the guiding inclined surface 4 extends obliquely from the first stop position A2 toward the initial position A1 to the initial position in the depth direction of the groove 34; the second shaft body 333 is positioned at the second end when the living hinge part 32 is rotated toward the fixed hinge part 31 to be closed until the first shaft body 332 is positioned at the initial position. The angle of the power-assisted door closing can be increased.

That is, after the door body 2 is closed to the second opening angle and the door is continuously closed until the first shaft body 332 moves to the guiding inclined plane 4, the first shaft body 332 moves along the guiding inclined plane 4 under the action of the self weight of the door body 2, so that the door body 2 rotates to be closed, and the function of assisting in closing the door can be achieved. After the door body 2 rotates and closes until the first shaft body 332 is located at the initial position, under the action of the dead weight of the door body 2, the second shaft body 333 abuts against and moves along the groove bottom 341 of the closing section 342, so that the door body 2 is further closed by assistance, and the door is closed in a labor-saving manner.

Further, as shown in fig. 6, when the door body 2 is continuously opened from the second opening angle to the third opening angle, the movable hinge member 32 cooperates with the fixed hinge member 31 to drive the door body 2 to move toward the pivot side 311 along the second direction Y while the door body 2 rotates. Therefore, the door body 2 is kept away from the box body 1 as far as possible, the opening degree of the box body 1 is ensured, and the problem that drawers, racks and the like in the box body 1 cannot be opened due to interference of the door body 2 is avoided.

Specifically, referring to fig. 6, the first slot 343 further includes a pivot position A3 located at a side of the initial position A1 away from the first stop position A2, and the second slot 344 further includes a third section L5 located between the second section L4 and the fourth end L2. When the door 2 is in the process of continuing to open from the second opening angle to the third opening angle, the second shaft 333 moves in the third section L5 to drive the first shaft 332 to move from the first stop position A2 to the pivot position A3. At this time, the door body 2 moves toward the pivoting side 311 along the second direction Y during rotation, so that the door body 2 is kept away from the box body 1 as far as possible, the opening of the box body 1 is ensured, and the problem that drawers, racks and the like in the box body 1 cannot be opened due to interference of the door body 2 is avoided.

It can be seen that, during the process of opening the door 2 by rotating, the second shaft 333 moves unidirectionally from the third end L1 to the fourth end L2 of the second slot 344, so as to drive the first shaft 332 to reciprocate in the first slot 343, for example, the first shaft moves from the initial position A1 to the first stop position A2, then moves from the first stop position A2 toward the initial position A1, and moves to the pivot position A3 through the initial position A1.

Further, as shown in fig. 2 and 8, the concave-convex structure includes a limiting groove 5, and after the movable hinge member 32 rotates in a direction away from the fixed hinge member 31 and is opened until the shaft body 33 is located in the limiting groove 5, the movable hinge member 32 is limited at a preset opening angle. When the door body 2 hovers at a preset opening angle, a user can conveniently take and put articles, and the door is opened by violent force, so that the door body 2 can be opened at a slow speed by the existence of the limiting groove 5 even if the door opening force overcomes the hovering force between the shaft body 33 and the limiting groove 5, and the door is opened by violent force.

Specifically, the limiting groove 5 is disposed in the second groove 344, and the shaft body 33 that is engaged with the limiting groove 5 is the second shaft body 333. Because the second shaft 333 moves in the second slot 344 in one direction during the door opening or closing process, the predetermined opening angle can be controlled more precisely.

Specifically, the preset opening angle is not less than 90 °. Of course, this is not a limitation.

Further, when the door body 2 is in the process of continuing to open from the third opening angle to the maximum opening angle, the movable hinge member 32 cooperates with the fixed hinge member 31 to drive the door body 2 to rotate in place relative to the case body 1, so as to further open the door body 2.

Specifically, as shown in fig. 7, the second groove 344 further includes a fourth segment L6 located between the third segment and the fourth segment L2, where the fourth segment L6 is an arc groove with the pivot position A3 as a center. As shown in fig. 7, when the door body 2 is in the process of continuing to open from the third opening angle to the maximum opening angle, the first shaft body 332 is kept at the pivot position A3, and the second shaft body 333 moves in the fourth section L6, so that the door body 2 rotates in place around the first shaft body 332 at the pivot position A3, so as to further open the door.

It will be appreciated that, during the process of opening the door 2 from the closed state to the first opening angle, the pivoting end of the door 2 protrudes slightly from the housing 1 toward the pivoting side 311 in the second direction Y due to the in-situ rotation of the door 2 relative to the housing 1. When the door body 2 is continuously opened to the second opening angle from the first opening angle, the displacement of the door body 2 along the first direction X can offset all parts of the door body 2 protruding out of the box body 1 along the second direction Y in the whole rotation process, and then when the door body 2 is continuously opened to the third opening angle from the second opening angle, the displacement of the door body 2 along the second direction Y can enable the door body 2 not to protrude out of the box body 1 and ensure the opening of the box body 11 as much as possible.

Specifically, the limiting groove 5 is disposed in the second section L4 and/or the third section L5 and/or the fourth section L6. That is, the position of the limit groove 5 is set according to a specific position corresponding to the preset opening angle.

As shown in fig. 8, after the second shaft 333 cooperates with the limit groove 5 to suspend the door 2 at the preset opening angle, if the opening angle of the door 2 needs to be increased, the door 2 may be further opened to disengage the second shaft 333 from the limit groove 5, so that the opening angle of the door 2 may be further increased to the maximum opening angle.

Further, as shown in connection with fig. 2, the mating end 331 has a convex hemispherical shape. Can strengthen the in-process of opening and closing door body 2, the matched smoothness between the cooperation end 331 and the tank bottom 341 and the concave-convex structure that correspond is convenient for open and close door body 2.

Specifically, when the concave-convex structure is disposed in the second groove 344, the mating end 331 refers to an end of the second shaft 333; when the concave-convex structure is disposed in the first groove 343, the mating end 331 refers to an end of the first shaft 332.

In summary, in the lower hinge assembly 3 of the present invention, by providing the concave-convex structure on the bottom 341 of the groove and matching with the shaft body 33, the matching end 331 of the shaft body 33 will abut against the concave-convex structure on the bottom 341 under the gravity of the door body 2, so as to position the shaft body 33 and position the door body 2 at a predetermined position, such as a predetermined opening angle or a closed state; or under the dead weight of the door body 2, the shaft body 33 can be guided to realize the power-assisted door closing or the power-assisted door opening, so as to achieve the effect of saving power.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims (10)

1. The lower hinge assembly comprises a fixed hinge piece fixed on a box body and a movable hinge piece fixed on a door body and movably connected with the fixed hinge piece, wherein a shaft body and a groove body matched with the shaft body are arranged between the fixed hinge piece and the movable hinge piece, and in the process that the movable hinge piece rotates and opens in the direction away from the fixed hinge piece, the shaft body and the groove body are matched to drive the movable hinge piece to translate according to a preset track; the method is characterized in that: the bottom of the groove body is provided with a concave-convex structure, and in the process that the movable hinge piece rotates relative to the fixed hinge piece, the matching end of the shaft body positioned in the groove body is matched with the concave-convex structure.

2. The lower hinge assembly of claim 1, wherein: the groove body is provided with a closing section, when the movable hinge piece rotates from a preset closing angle towards the fixed hinge piece to be closed to a closing state, the shaft body moves along the closing section, the matching end of the shaft body is abutted against the groove bottom of the closing section, and the concave-convex structure comprises the groove bottom positioned at the closing section; the closing section comprises a first end and a second end which are opposite, when the movable hinge piece is closed to a preset closing angle, the shaft body is positioned at the second end, when the movable hinge piece is in a closing state, the shaft body is positioned at the first end, the second end faces the direction of the first end, and the bottom of the closing section obliquely extends to the depth direction of the groove body.

3. The lower hinge assembly of claim 2, wherein: the preset closing angle is 15 degrees.

4. The lower hinge assembly of claim 2, wherein: the shaft body comprises a first shaft body and a second shaft body, and the groove body comprises a first groove body matched with the first shaft body and a second groove body matched with the second shaft body; the fixed hinge piece is provided with a pivoting side, and the direction from the center of the fixed hinge piece to the pivoting side is a first direction; the first groove body comprises an initial position and a first stop position, and the second groove body comprises a third end, a fourth end, a first section and a second section which are oppositely arranged, are positioned between the third end and the fourth end and are connected; when the movable hinge piece is in a closed state, the first shaft body is positioned at an initial position, the second shaft body is positioned at a third end, when the movable hinge piece is opened from the closed state to a first opening angle, the first shaft body is kept at the initial position, the second shaft body takes the first shaft body as a circle center and moves in the first section, and when the movable hinge piece is continuously opened from the first opening angle to a second opening angle, the second shaft body moves in the second section to drive the first shaft body to move from the initial position to the first stopping position and drive the movable hinge piece to translate along a first direction; the closing section is located within the first section.

5. The lower hinge assembly of claim 4, wherein: the concave-convex structure further comprises a guide inclined surface positioned at one side of the initial position towards the first stop position, and the guide inclined surface obliquely extends to the initial position towards the depth direction of the groove body from the first stop position towards the initial position; the second shaft body is positioned at the second end when the movable hinge member is turned toward the fixed hinge member to be closed until the first shaft body is positioned at the initial position.

6. The lower hinge assembly of claim 1, wherein: the concave-convex structure comprises a limiting groove, and the movable hinge part is limited at a preset opening angle after being rotated and opened in the direction away from the fixed hinge part until the shaft body is positioned in the limiting groove.

7. The lower hinge assembly of claim 6, wherein: the preset opening angle is not smaller than 90 degrees.

8. The lower hinge assembly of claim 6, wherein: the shaft body comprises a first shaft body and a second shaft body, and the groove body comprises a first groove body matched with the first shaft body and a second groove body matched with the second shaft body; the first groove body comprises an initial position, a first stopping position and a pivoting position which is positioned at one side of the initial position far away from the first stopping position, the second groove body comprises a third end and a fourth end which are oppositely arranged, when the movable hinge piece is in a closed state, the first shaft body is positioned at the initial position, the second shaft body is positioned at the third end, and when the movable hinge piece is rotated to be opened to a maximum opening angle, the second shaft body moves from the third end to the fourth end along the second groove body to drive the first shaft body to reciprocate in the first groove body; the limiting groove is arranged in the second groove body.

9. The lower hinge assembly of claim 1, wherein: the matching end is in a convex hemispherical shape.

10. An embedded refrigerator comprises a refrigerator body and a door body for opening or closing the refrigerator body; the method is characterized in that: the embedded refrigerator further comprising a lower hinge assembly as claimed in any one of claims 1 to 9 movably connecting the door to the refrigerator body.