CN108253680A - Refrigerator - Google Patents

Abstract

A kind of refrigerator, including：Main body (1) with storeroom (1a)；The first container (21,21 ', 61) and second container (22,22 ', 62) suitable for stacked are contained in storeroom (1a)；First connecting rod mechanism (31,31 ')；Second connecting rod mechanism (32), when the first container (21,21 ', 61) when being moved outside to storeroom (1a), first connecting rod mechanism (31,31 ') it is promoted with second connecting rod mechanism (32) and pulls out second container (22,22 ', 62)；As the guiding groove or guide hole of guide portion (4,4 ', 40), set on one of the first container (21,21 ', 61) and second container (22,22 ', 62)；First connecting rod mechanism (31,31 ') includes guide pins (310,310 ', 610), guide pins (310,310 ', 610) are suitable for working as the first container (21,21 ', 61) it is moved when moving out along guide portion (4,4 ', 40).The refrigerator of this programme has good user experience.

Description

Refrigerator with a door

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator.

Background

A refrigerator includes: a main body having a storage chamber; a first container and a second container adapted to be received in a stacked relationship within the storage compartment, wherein in the stacked configuration the first container is positioned above the second container; a first linkage mechanism comprising two links pivotally connected, one of the links being rotatably connected to the first container and the other link being rotatably connected to the second container; and a second link mechanism rotatably connecting the second container and the main body. The first container is pulled outwardly and moved outwardly of the storage compartment, and the first and second linkages are adapted to lift and pull the second container from the storage compartment, at which time the second container is able to reach the height of the first container. The second container is lifted, so that a user can conveniently take and place articles from the second container without bending down.

However, since the two links in the first link mechanism are pivotally connected, the pivotal connection is a movable connection. When first container outwards moved, there was the uncertainty in the movement track between two connecting rods, caused the second container to appear can not normally pull out, promote the unstable scheduling problem of process, reduction user experience.

Disclosure of Invention

The invention solves the problem of providing a refrigerator with good user experience for solving at least one technical problem in the prior art.

In order to solve the above problems, the present invention provides a refrigerator. The refrigerator includes: a main body having a storage chamber; a first container and a second container adapted to be received in a stacked arrangement within the storage compartment, wherein in the stacked arrangement the first container is located above the second container; a first link mechanism including a first rod end rotatably connected to the first container and a second rod end rotatably connected to the second container; a second link mechanism rotatably connected to the second container and the main body, the first and second link mechanisms being adapted to lift and pull the second container from the storage chamber when the first container moves out of the storage chamber; further comprising: a guide groove or a guide hole as a guide portion provided in one of the first container and the second container; the first linkage includes a guide pin within the guide portion, the guide pin adapted to move along the guide portion as the first container moves outwardly.

When the first container moves to the outside of the storage chamber, the guide pin moves along the guide portion in the guide portion, and the side wall of the guide portion can limit the play of the guide pin during the movement. This allows the movement trace of the first link mechanism to have good stability and certainty by the guide pin, so that the second container can be normally and stably lifted and pulled out of the storage compartment, enhancing the user experience.

Optionally, the first linkage further comprises: the two ends of the first connecting rod are respectively the first rod end and the second rod end, and the corresponding end of the first rod end and the second rod end is connected with the guide pin.

At this time, the first link mechanism may include only the first link. The guide part can be arranged on the first container, and the corresponding end is a first rod end; or a guide portion may be provided at the second container, the corresponding end being a second rod end. In both cases, when the first container moves out of the storage chamber and the second container is lifted and pulled out, the second rod end of the first connecting rod is restrained by the guide part through the guide pin, the movement track of the first connecting rod is stable and deterministic due to the guide part, the second container is stably lifted and pulled out of the storage chamber, and the user experience is improved.

Optionally, the first linkage further comprises: and a first link and a second link, each of which has one end pivotally connected by the guide pin and the other end serving as the second link end and the other end serving as the first link end.

At this time, the first link mechanism includes a first link and a second link, both ends of the pivotal connection of the first link and the second link are restrained by the guide portion for the guide pin, both ends of the pivotal connection of the first link and the second link are restricted to move only along the guide portion, and a movement locus between the first link and the second link has good certainty.

And, the second connecting rod is installed in the container that guide portion was located, and the second connecting rod has good steadiness. When the first container moves towards the outside of the storage chamber, the second connecting rod can hold the guide pin, so that the pressing force of the guide pin on the side wall of the guide part is reduced, and the guide pin is prevented from jumping out of the guide part.

Optionally, the guide portion extends in an arc shape with the first rod end as a center. The guide part that the arc extends can avoid the motion process of uide pin to fluctuate and cause first container and second container to fluctuate, shakiness in the motion process, ensures that the motion process of uide pin is more level and smooth to outside first container can be pulled out the storage compartment steadily, the second container can be steadily promoted and pull out, obtains good user experience nature.

Optionally, the length of the first link is greater than the length of the second link. This may allow the second container to be raised to an elevated position to facilitate access of items from the second container by a user.

Optionally, the guide portion comprises a first end and a second end; the guide part extends backwards from the first end to the second end at least along the front-back direction of the storage chamber, is gradually far away from the bottom wall of the container from the first end upwards to the top point, and then gradually approaches to the bottom wall of the container from the top point downwards to the second end; the guide portion is provided to the first container, and the guide pin is adapted to: moving in a direction from the first end to a second end along the guide when the first container moves outwardly; alternatively, the guide portion is provided to the second container, and the guide pin is adapted to: when the first container moves outward, the first container moves along the guide portion from the second end to the first end.

The guide portion may be provided in the first container or the second container, and in both cases, the shape of the guide portion is the same, but the position and the movement locus of the guide pin in the stacked state are different. In the layout, the position of the guide portion and the connection relationship with the first link mechanism can be selected according to the purpose of lifting and pulling out the second container.

Optionally, the guide portion is provided on the first container; in the stacked state, the guide pin is located at the first end or at any position between the first end and the apex. This prevents the guide pin from falling from the apex into the second end by its own weight in the stacked condition, thereby ensuring that the first container can be normally pulled out of the stacked condition and the second container can be normally lifted and pulled out of the storage compartment.

Optionally, the guide is rounded at the apex. This may make the guidance slide more smoothly over the apex.

Optionally, the guide portion extends in an arc from the first end to the apex, the first end to apex being spaced apart by 20 ° -30 ° on the arc. This prevents the guide pin from moving downwardly from the apex to the first end by gravity a significant distance in the suspended state, thereby preventing the first container from being pulled out properly.

Optionally, the guide portion is provided on the first container; the guide portion is adapted to guide the guide pin to the second end when the first container is moved out of the storage compartment and the second container begins to rise. This allows the first container to move just outside the storage compartment when the guide pin reaches the second end. At this time, the guide pin is blocked by the second end, so that the first link mechanism starts to drive the second container to be lifted. Therefore, the second container starts to be lifted at the same time as the first container just moves out of the storage chamber. On the one hand, when the second container starts to be lifted, the first container is not pulled out of the storage chamber a long distance to occupy a user space. On the other hand, when the second container is lifted, the first container is not completely pulled out of the storage chamber, so that a user can conveniently take and put articles from the first container without pulling out the second container.

Optionally, the guide portion comprises a first end and a second end; the guide portion extends rearward from the first end to the second end in a front-rear direction of the storage chamber and gradually comes down close to a bottom wall of the container. In one case, the guide portion may extend only from the first end to the second end rearwardly and gradually downwardly adjacent the bottom wall of the container when the frictional force between the side walls of the guide portion and the guide pin is sufficient to resist downward movement of the guide pin due to gravity.

Optionally, the second linkage comprises: a third link including a third rod end rotatably connected to the second container and a fourth rod end rotatably connected to the body; in the stacked state, the third bar end is closer to a rear wall of the storage chamber than the fourth bar end.

When the second container is pulled by the first link mechanism, the second container can drive the third link to rotate upwards around the fourth link end through the third link end, and the third link lifts the second container through the third link end, so that the second container is lifted and pulled out of the storage chamber. This provides an alternative to the second linkage to achieve effective lifting and pulling out of the second container.

Optionally, in the stacked state, the third rod end is above the fourth rod end. In the initial position, the third rod end is in the high position, so that the third rod end can be easily lifted, and the operation of a user is more labor-saving.

Optionally, the third link comprises at least two links arranged in parallel. More third connecting rods can provide stable support for the second container during the process of lifting and pulling the second container out of the storage chamber.

Drawings

Fig. 1 is a perspective view of a refrigerator according to a first embodiment of the present invention when a door is opened;

fig. 2 is a partial perspective view of a refrigerator according to a first embodiment of the present invention, in which a door and one side wall of a refrigerator body are omitted;

fig. 3 is a side view of the refrigerator according to the first embodiment of the present invention, in which a door and one side wall of a refrigerator body are omitted;

fig. 4 is a schematic view illustrating a process in which a second container is lifted and pulled out of a storage compartment in the refrigerator according to the first embodiment of the present invention;

fig. 5 is a side view of a refrigerator according to a second embodiment of the present invention in which a first container and a second container are stacked, with a refrigerator body omitted;

fig. 6 is a schematic view illustrating a process in which a second container is lifted and pulled out of a storage compartment in the refrigerator according to the third embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

First embodiment

Referring to fig. 1 to 3, the refrigerator includes: a main body 1 having a storage chamber 1 a;

a first container 21 and a second container 22 adapted to be accommodated in the storage chamber 1a in a stacked state in which the first container 21 is located above the second container 22 as shown in fig. 2;

a first link mechanism 31 including a first rod end 3a rotatably connected to the first tank 21 and a second rod end 3b (not numbered in fig. 1) rotatably connected to the second tank 22;

and a second link mechanism 32 (not shown in fig. 1) rotatably connected to the second container 21 and the main body 1, the first link mechanism 31 and the second link mechanism 32 being adapted to lift the second container 22 and pull the second container 22 out of the storage chamber 1a when the first container 21 is moved out of the storage chamber 1.

Wherein, the refrigerator still includes: a guide groove or a guide hole as the guide portion 4 may be provided in the first container 21. The first linkage 31 includes a guide pin 310 located within the guide portion 4, the guide pin 310 being adapted to move along the guide portion 4 when the first container 21 moves outwardly.

Wherein, the first link mechanism 31 further includes: the first link 311 and the second link 312 are pivotally connected by one end thereof through the guide pin 310, and the other end of the first link 311 serves as the second lever end 3b and the other end of the second link 312 serves as the first lever end 3 a.

Referring to fig. 2 to 4, a represents a stacked state between the first container 21 and the second container 22, B represents the first container 21 moving horizontally just outside the storage chamber 1a, and position C represents a pulled-out state of the second container 22. The process of lifting and pulling the second container 22 out of the storage chamber 1a may include:

first, from a to B, the first container 21 is moved out of the storage room 1a in the horizontal direction F to be completely pulled out, and at this time, the second container 22 is not moved yet. The first link 311 rotates clockwise around the second rod end 3b, and simultaneously the second link 312 is driven by the guide pin 310 to rotate clockwise around the first rod end 3a, so that the guide pin 310 rotates clockwise along the guide part 4;

then, from B to C, the first container 21 continues to move outward in the horizontal direction F, and the second container 22 is lifted by the first link 311 and pulled out of the storage chamber 1a, so that the first link 311 rises and drives the guide pin 310 to rotate counterclockwise along the guide portion 4, thereby driving the second link 312 to rotate counterclockwise, and the second container 22 is pulled out of the storage chamber 1 a.

As can be seen from the above, the first link 311 and the second link 312 are pivotally connected at one end thereof and are restrained by the guide pin 310 to the guide portion 4. When the first container 21 moves out of the storage chamber 1a, the guide pin 310 moves in the guide 4, one end of each of the first link 311 and the second link 312 is restricted to move only along the guide 4, and the side wall of the guide 4 restricts the play of the guide pin 310. Therefore, the movement traces of the first link 311 and the second link 312 have certainty, and the second container 22 can be normally and stably lifted and pulled out of the storage chamber 1a, thereby enhancing the user experience.

Also, the second link 312 is mounted to the first container 21, and the second link 312 has good stability. When the first container 21 moves out of the storage chamber 1a, the first link 311 applies pressure to the guide pin 310, and the guide pin 310 may further press the side wall of the guide portion 4, thereby risking coming out of the guide portion 4. At this time, the second link 312 may hold the guide pin 310, so as to reduce the pressing force of the guide pin 310 on the side wall of the guide portion 4, and prevent the guide pin 310 from escaping out of the guide portion 4. Therefore, the second link 312 has good restraining and limiting effects on the guide pin 310 and the first link 311.

Referring to fig. 3, the guide portion 4 may include a first end 4a and a second end 4 b; along the front-back direction of the storage chamber 1a, the guide portion 4 extends backward from at least the first end 4a to the second end 4b, and gradually gets away from the bottom wall of the container from the first end 4a to the vertex D, and then gradually gets close to the bottom wall of the container from the vertex D to the second end 4 b. Thus, the guiding portion 4 can be disposed on the first container 21, so that the guiding portion 4 gradually gets away from the bottom wall 210 of the first container 21 from the first end 4a to the vertex D, and then gradually gets close to the bottom wall 210 to the second end 4b from the vertex D. Therefore, referring to fig. 4 in combination, during the process of lifting and pulling the second container 22 out of the storage chamber 1a, the guide pin 310 rotates clockwise from the first end 4a to the second end 4b, and then moves counterclockwise from the second end 4b to the first end 4 a.

The guide portion 4 may extend in an arc shape, and the guide portion 4 may extend in an arc shape with the first rod end 3a as a center. Since the first rod end 3a is fixed, the second link 312 can provide a good hold down for the guide pin 310.

And, as shown in conjunction with position B in fig. 4, the guide part 4 is adapted to guide the guide pin 310 to the second end 4B when the first container 21 moves out of the storage chamber 1a and the second container 22 starts to ascend. This includes: in position B, leader pin 310 may be located just at second end 4B. This limits the extension of the guide portion 4 from the first end 4a to the second end 4b and the position of the second end 4 b.

The guide portion 4 gradually extends downward from the vertex D to the second end 4B, and thus, from the position a to B, the guide pin 310 and both ends of the pivotal connection of the first link 311 and the second link 312 are subjected to their own weight, and the downward movement can be accelerated. In one aspect, in the position B, the first container 21 may be just completely pulled out from the storage chamber 1a, the second container 22 starts to ascend but does not ascend, and the second end 4B of the guide portion 4 may form a block against the guide pin 310, and block the two ends of the first link 311 and the second link 312 pivotally connected to each other from further moving downward. This makes it possible to achieve that the distance by which the first container 21 is pulled out of the storage chamber 1a is limited within a reasonable range. Because, if the guide pin 310 does not reach the second end 4b just when the first container 21 is pulled out of the storage chamber 1a, the first container 21 continues to move outward, resulting in a too long pull-out distance, occupying a large space and affecting the user experience. On the contrary, if the guide pin 310 reaches the second end 4b when the first container 21 is not completely pulled out of the storage chamber 1a, it is inconvenient for the user to take and place the articles from and in the first container 21.

Therefore, when the first container 21 moves out of the storage chamber 1a and the second container 22 starts to ascend, the guiding pin 310 just reaches the second end 4b, so that a reasonable limit can be formed on the distance that the first container 21 is pulled out of the storage chamber 1a, and especially, the user experience is good for only taking and placing articles from the first container 21.

Referring collectively to fig. 2, in the stacked state (a), the guide pin 310 may be located at the vertex D or at any position between the first end 4a and the vertex D. In conjunction with the foregoing, in the stacked state, if guide pin 310 is located between vertex D and second end 4b, the two ends of the pivotal connection of first link 311 and second link 312 and guide pin 310 run the risk of falling by gravity to second end 4 b. Once moved downwardly, this results in the first container 21 being subsequently no longer able to be pulled normally outwardly. Therefore, in the stacked state, the guide pin 310 is located at the vertex D or at any position between the first end 4a and the vertex D, there is no problem of slipping down to the second end 4b, which can ensure that the first container 21 can be normally pulled out from the stacked state and the second container 22 can be normally lifted and pulled out of the storage chamber 1 a.

In the present embodiment, the guiding portion 4 extends in an arc shape, and the guiding portion 4 may be in a smooth transition at the vertex D, which may enable the guiding pin 310 to pass through the vertex D more smoothly.

Further, the guide portion 4 extends in a circular arc at least from the first end 4a to a vertex D, on which the vertex D to the first end 4a may be spaced apart by 20 ° to 30 °. The limitation of the distance from the vertex D to the first end 4a here reduces the risk of: the guide pin 310 moves downward by a large distance due to gravity in the suspended state, thereby causing the first container 21 not to be normally pulled out. Therefore, the limitation of the distance from the vertex D to the first end 4a herein can better avoid the risk of failure of the first link mechanism 31, and ensure that the first container 21 and the second container 22 are both pulled out normally.

In addition to the shape of the guide 4 shown, in some cases, for example, when the friction between the side wall of the guide and the guide pin is enough to prevent the guide pin from moving downward due to gravity, the guide may extend only from the first end to the second end and gradually move downward toward the bottom wall of the container.

Wherein, the length of the first link 311 is greater than the length of the second link 312. This may allow the second container 22 to be raised to an elevated position to facilitate access of items from the second container 22 by a user.

Referring to fig. 2 and 3, the second link mechanism 32 includes: a third link 320, the third link 320 including a third rod end 3c rotatably connected to the second container 22 and a fourth rod end 3d rotatably connected to the main body 1 (hidden from view in fig. 2);

in the stacked state, the third bar end 3c is closer to the rear wall 10 of the storage chamber 1a than the fourth bar end 3 d. Thus, when the first container 21 is pulled out of the storage chamber 1a and the second container 22 is pulled further, the second container 22 drives the third link 320 to rotate counterclockwise and upward around the fourth link end 3d by the third link end 3c, and the third link 320 lifts the second container 22 by the third link end 3c, so that the second container 22 is stably lifted and pulled out of the storage chamber 1 a. This provides an alternative to the second linkage 32 to achieve effective lifting and pulling out of the second container 22.

Further, in the stacked state, the third rod end 3c is located above the fourth rod end 3 d. When the first container 21 is pulled out of the storage chamber 1a and the second container 22 is continuously pulled, the third lever end 3c can be easily raised, and the user's operation is more labor-saving.

The third link 320 includes two links arranged in parallel, so that it can provide stable support to the second container 22 during the process of raising and pulling the second container 22 out of the storage chamber 1 a. In other embodiments, the third link may include more than two links arranged in parallel according to the spatial layout. Thus, the third link may comprise at least two arranged side by side.

Referring to fig. 2, the refrigerator includes two sets of first and second link mechanisms 31 and 32 (one of which is hidden from view) respectively provided at left and right sides of the storage chamber 1a, which can keep the second container 22 stably and balancedly lifted and pulled out. In each first link mechanism 31, the first rod end 3a is connected to the side wall 211 of the first container 21, the second rod end 3b is connected to the side wall 221 of the second container 22, and the guide portion 4 is provided on the side wall 211 of the first container 21, so that the arrangement is feasible. Here, the guide portion 4 may be a guide groove formed through a part of the side wall 211 of the first container 21, or a guide hole formed through the entire side wall 211 of the first container 21. Alternatively, the guide groove may be formed by providing a protrusion on the outer surface of the side wall 211 of the first container 21.

In the second link mechanism 32, the third rod end 3c may be connected to the side wall 221 of the second container 2, and the fourth rod end 3d may be connected to the side wall 11 of the storage chamber 1 a.

Referring to fig. 1, the refrigerator includes a door 5 corresponding to a first container 21 and a second container 22, and the door 5 is connected to the first container 21. In the stacked state, the door 5 is closed and disposed opposite to both the first container 21 and the second container 22 while locking both the containers in the storage chamber 1 a. In addition, the door 5 also provides a grip portion to pull the first and second containers 21 and 22 outward, facilitating and simplifying the refrigerator structure.

Second embodiment

Referring to fig. 5, the first link mechanism 31' further includes:

the first link 311 'has two ends, namely a first rod end 3 a' and a second rod end 3b ', and the corresponding one of the first rod end 3 a' and the second rod end 3b 'is connected with the guide pin 310'. The respective ends refer to the ends of the first and second rod ends 3a ' and 3b ' that are rotatably connected to the container in which the guide portion 4 ' is located. For example, the guide portion 4 ' may be provided at the first container 21 ', and the corresponding end is the first rod end 3a '. The first link 311 ' is rotatably connected to the first container 21 ' by the first lever end 3a ', and the first lever end 3a ' is connected to the guide pin 310 '.

Referring to the motion track of the first link in the first embodiment, the technical solution of this embodiment can also effectively realize that the second container 22 'is lifted to the height of the first container 21' and is pulled out of the storage room. Moreover, the first link mechanism 31 ' may include only the first link 311 ', and compared to the first embodiment, the second link may be omitted, simplifying the structure of the first link mechanism 31 '.

In particular, the first rod end 3a ' of the first link 311 ' is restricted by the guide portion 4 ' by the guide pin 310 ', and a movement locus of the first rod end 3a ' in the first link 311 ' is determined during the outward movement of the first container 21 ' and the lifting of the second container 22 ', and the second container 22 ' can be stably lifted and pulled out of the storage room.

Third embodiment

Referring to fig. 6, the guiding portion 40 may be disposed on the second container 62, extend backward from the first end 40a to the second end 40b, and gradually get away from the bottom wall 620 of the second container 62 from the first end 40a to the vertex d, and then gradually get close to the bottom wall 620 of the second container 62 from the vertex d to the second end 40 b. The shape of the guide portion 40 can refer to the first embodiment.

In the stacked state a, the guide pin 610 is located at the second end 40b of the guide portion 40;

from the stacked state a to the state B, in which the first container 61 is moved outside the storage chamber to be drawn out of the storage chamber, the second container 62 is not moved yet, the guide pin 610 rotates counterclockwise along the guide portion 40, moves from the second end 40B of the guide portion 40 in the direction of the first end 40a, and can be moved to the first end 40a, wherein the first link 611 and the second link 612 at the state B are indicated by dotted lines to distinguish from the stacked state a;

from state B to state C, the first container 61 continues to move horizontally away from the storage compartment, and the guide pin 610 moves clockwise from the first end 40a toward the second end 40B and may reach a position between the first end 40a and the vertex d, at which time the second container 62 is lifted and pulled out of the storage compartment.

Therefore, the present embodiment can achieve the purpose of lifting and pulling out the second container 62 by pulling the first container 61 outward. In particular, the guide pin 610 cooperates with the guide portion 40 to achieve normal and stable lifting and pulling of the second container 62 out of the storage compartment.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (14)

1. A refrigerator, comprising: a main body (1) having a storage chamber (1 a);

a first container (21, 21 ', 61) and a second container (22, 22', 62) adapted to be accommodated in a stack within the storage compartment (1a), wherein in a stacked state the first container (21, 21 ', 61) is located above the second container (22, 22', 62);

a first link mechanism (31, 31 ') comprising a first rod end (3a, 3a ') rotatably connected to the first container (21, 21 ', 61) and a second rod end (3b, 3b ') rotatably connected to the second container (22, 22 ', 62);

a second link mechanism (32) rotatably connected to the second container (22, 22 ', 62) and the main body (1), the first link mechanism (31, 31') and the second link mechanism (32) being adapted to lift and pull out the second container (22, 22 ', 62) when the first container (21, 21', 61) moves out of the storage chamber (1 a);

it is characterized by also comprising: a guide groove or guide hole as a guide portion (4, 4 ', 40) provided in one of the first container (21, 21 ', 61) and the second container (22, 22 ', 62);

the first linkage (31, 31 ') comprises a guide pin (310, 310', 610) located within the guide (4, 4 ', 40), the guide pin (310, 310', 610) being adapted to move along the guide (4, 4 ', 40) when the first container (21, 21', 61) moves outwardly.

2. The refrigerator according to claim 1, wherein the first link mechanism (31') further comprises:

a first link (311 ') having two ends, respectively, the first rod end (3 a') and the second rod end (3b '), and a corresponding one of the first rod end (3 a') and the second rod end (3b ') being connected to the guide pin (310').

3. The refrigerator according to claim 1, wherein the first link mechanism (31) further comprises: a first link (311, 611) and a second link (312, 612), each having one end pivotally connected by the guide pin (310, 610), and the other end of the first link (311, 611) serving as the second rod end (3b), and the other end of the second link (312, 612) serving as the first rod end (3 a).

4. A refrigerator according to claim 3, characterized in that said guide portion (4) extends in an arc shape with said first lever end (3a) as a center.

5. The refrigerator of claim 3 or 4, wherein the first link (311, 311 ', 611) has a length greater than that of the second link (312, 312', 612).

6. A refrigerator according to claim 1, characterized in that said guide (4, 4', 40) comprises a first end (4a, 40a) and a second end (4b, 40 b);

the guide part (4, 4', 40) extends backwards from the first end (4a, 40a) to the second end (4b, 40b) along the front-back direction of the storage chamber (1a), and gradually gets away from the bottom wall (210, 620) of the container (21, 62) from the first end (4a, 40a) to the top point, and then gradually gets close to the bottom wall (210, 620) of the container (21, 62) from the top point to the second end (4b, 40b) from the top point downwards;

the guide portion (4, 4 ') is provided to the first container (21, 21 '), and the guide pin (310, 310 ') is adapted to: moving along the guide (4, 4 ') in a direction from the first end (4a) to the second end (4b) when the first container (21, 21') moves outwardly; or,

the guide portion (40) is provided to the second container (62), the guide pin (610) being adapted to: moves in a direction from the second end (40b) to the first end (40a) along the guide portion (40) when the first container (61) moves outward.

7. The refrigerator according to claim 6, characterized in that the guide (4, 4 ') is provided to the first container (21, 21');

in the stacked state, the guide pin (310, 310') is located at the first end (4a) or at any position between the first end (4a) and the apex.

8. A refrigerator as claimed in claim 6, characterized in that said guide (4, 4', 40) is rounded at said vertex.

9. Household appliance according to claim 6, wherein the guide (4, 4', 40) extends in a circular arc at least from the first end (4a, 40a) to the vertex, the first end (4a, 40a) to the vertex being spaced apart by 20 ° -30 ° on the circular arc.

10. The household appliance of claim 1, wherein the guide includes a first end and a second end; the guide portion extends rearward from the first end to the second end in a front-rear direction of the storage chamber (1a) and gradually comes down close to a bottom wall of the container.

11. The refrigerator according to any one of claims 6 to 10, characterized in that the guide (4, 4 ') is provided to the first container (21, 21');

the guide portion (4, 4 ') is adapted to guide the guide pin (310, 310') to the second end (4b) when the first container (21, 21 ') is moved out of the storage chamber (1a) and the second container (22, 22') starts to ascend.

12. The refrigerator according to claim 1, wherein the second link mechanism (32) comprises: a third link (320), the third link (320) including a third rod end (3c) rotatably connected to the second container (22) and a fourth rod end (3d) rotatably connected to the main body (1);

in the stacked state, the third lever end (3c) is closer to a rear wall (10) of the storage chamber (1a) than the fourth lever end (3 d).

13. The refrigerator according to claim 12, wherein in the stacked state, the third lever end (3c) is located above the fourth lever end (3 d).

14. The refrigerator of claim 12, wherein the third link (320) comprises at least two links arranged in parallel.