CN221099117U - Refrigerator and shelf device - Google Patents

Abstract

The application relates to the field of refrigerators, in particular to a refrigerator and a shelving device. The shelf device comprises a first shelf, a second shelf, a supporting component and a fixing component, wherein the first shelf is connected with a first rotating shaft, the second shelf is connected with a second rotating shaft, and the same ends of the first rotating shaft and the second rotating shaft are movably connected with the same supporting component, so that the first shelf and the second shelf can rotate between a horizontal state and a vertical state relative to the supporting component through the first rotating shaft and the second rotating shaft; when the first shelf and the second shelf rotate to a horizontal state, the first shelf and the second shelf are spliced to form a shelf body for placing objects; when the first shelf and the second shelf rotate to a vertical state and the first rotating shaft and the second rotating shaft are arranged at one end close to the length direction of the supporting component, the fixing component is used for fixing or unlocking the first shelf and the second shelf. The shelf device does not need to be taken out, is convenient to fold and can meet the storage requirement of a user on articles with higher height in the refrigerator.

Description

Refrigerator and shelf device

Technical Field

The application relates to the field of refrigerators, in particular to a refrigerator and a shelving device.

Background

Along with the continuous improvement of living standard, people have higher requirements on the refrigerator, and because the existing refrigerator shelves are placed on ribs of the refrigerator container, the heights among the refrigerator shelves are limited, so that when a user needs to store articles with higher heights, the shelves on a certain layer may need to be taken out, certain inconvenience exists, and the taken-out shelves are not stored properly and are easy to fall and damage. The prior art discloses a shelf structure of front and back shelf concatenation, and the lift dislocation through front and back shelf is with front shelf and back shelf range upon range of setting from top to bottom, but the shelf after range upon range of setting still occupies half at least horizontal space, can't satisfy user's user demand.

Disclosure of utility model

The application provides a refrigerator and a shelving device, which are used for solving the problem of inconvenient storage of articles with larger height in the refrigerator.

In a first aspect, the present application provides a shelving unit comprising:

the first shelf and the second shelf are fixedly connected with the first rotating shaft, the second shelf is fixedly connected with the second rotating shaft, the first shelf and the second shelf are configured to be rotated and switched between a horizontal state and a vertical state, and when the first shelf and the second shelf are both rotated to the horizontal state, the first shelf and the second shelf are spliced to form a shelf body for placing objects;

The support assembly is arranged on at least one side of the width direction of the first shelf and the second shelf, and the same ends of the first rotating shaft and the second rotating shaft are movably connected with the same support assembly;

The fixing assembly is used for fixing or unlocking the first shelf and the second shelf in a vertical state when the first rotating shaft and the second rotating shaft are arranged at one end of the supporting assembly in the length direction; the vertical state refers to a state that an included angle of the first shelf and the second shelf relative to the vertical direction is smaller than a preset included angle.

In some embodiments, the support assembly is a rail assembly, and the same ends of the first and second shafts are slidably connected to the same rail assembly;

The fixing component is a telescopic component, the first rotating shaft and the second rotating shaft penetrate through the telescopic component and are rotationally connected with the telescopic component, and the telescopic component is used for driving the first rotating shaft and the second rotating shaft to slide along the guide rail component and is configured to be capable of being fixed and unlocked in a contracted state;

When the telescopic component is fixed in a contracted state, the first shelf and the second shelf are rotated to be vertical, and the first rotating shaft and the second rotating shaft slide to one end close to the length direction of the guide rail component.

In some embodiments, the telescopic assembly is connected to a telescopic driving assembly, and the telescopic driving assembly is used for driving the telescopic assembly to extend or retract.

In some embodiments, the first end of the telescopic component is provided with a sliding block, the second end of the telescopic component is fixed on the guide rail component, and the sliding block is in sliding connection with the guide rail component; the device also comprises a position detection assembly for detecting the position of the sliding block.

In some embodiments, the first shaft and the second shaft are connected to a rotation driving assembly, and the rotation driving assembly is used for driving the first shaft and the second shaft to rotate, so that the first shelf and the second shelf are switched between a horizontal state and a vertical state.

In some embodiments, the first shaft is vertically connected to the first link, and an end of the first link facing away from the first shaft is vertically connected to the first roller; the second rotating shaft is vertically connected with a second connecting rod, and one end of the second connecting rod, which is away from the second rotating shaft, is vertically connected with a second roller;

The rotary driving assembly comprises a first driving motor and a connecting rod mechanism rotationally connected with the first driving motor, the connecting rod mechanism comprises a lifting connecting rod which is horizontally arranged, the lifting connecting rod is provided with a driving groove, and the first roller and the second roller are in sliding connection with the driving groove;

the lifting connecting rod is driven by the first driving motor to lift between a first position and a second position, and when moving to the first position, the lifting connecting rod drives the first shelf and the second shelf to rotate to a vertical state; when the lifting connecting rod moves to the second position, the first shelf and the second shelf are driven to rotate to a horizontal state.

In some embodiments, the lifting link defines a support aperture and further includes a support bar that engages the support aperture and fixedly supports the lifting link in the first position.

In some embodiments, the support bar is provided with a rack, the rack is in meshed connection with a drive gear, the drive gear is connected with a second drive motor, and the second drive motor is used for driving the support bar to extend into or withdraw from the support hole.

In some embodiments, the telescoping assembly is a scissor jack.

In some embodiments, the guide rail assembly comprises a guide rail body and fixing pieces arranged at two ends of the guide rail body, the guide rail body is provided with a rotating shaft slideway and a sliding block slideway, the first rotating shaft and the second rotating shaft are slidably arranged on the rotating shaft slideway, and the sliding block is slidably arranged on the sliding block slideway.

In some embodiments, the telescoping drive assembly includes a third drive motor and a drive assembly coupled to the third drive motor for driving the slider to reciprocate along the slider slide.

In some embodiments, the first shelf and/or the second shelf are provided with a gravity sensor electrically connected with a control mechanism of the rotary drive assembly.

In some embodiments, the splice mating surface of the first shelf and the second shelf is a stepped surface.

In a second aspect, the present application provides a refrigerator, including a refrigerator body, a liner, and a shelving unit according to any one of the above, wherein the first shelf is disposed at an end of the liner, which is close to an opening side of the refrigerator body, and the second shelf is disposed at an end of the liner, which is far from the opening side of the refrigerator body.

In some embodiments, and when the fixed component is a telescoping component, the support component is a rail component; the inner container is provided with a first mounting groove for accommodating the telescopic component and a second mounting groove for accommodating the guide rail component on the side wall adjacent to the opening side of the box body, and the first mounting groove is close to the surface of the inner container compared with the second mounting groove and is communicated with the second mounting groove.

In some embodiments, when the shelving unit is provided with a rotary drive assembly, the liner is provided with a third mounting groove for accommodating the rotary drive assembly, and the second mounting groove is closer to the surface of the liner than the third mounting groove and is communicated with the third mounting groove.

In some embodiments, the liner is provided with a support rib on a rear wall of the liner opposite to the opening side of the box body; and/or the inner container is provided with a supporting block at the opening side close to the box body.

In some embodiments, the support ribs and/or support blocks are provided with in-place sensors for detecting the position of the shelf body, the in-place sensors being electrically connected with a control mechanism of the rotary drive assembly.

In some embodiments, when the shelving unit is provided with a telescoping drive assembly and a rotary drive assembly, the box or liner is provided with a control button;

The control button is electrically connected with the telescopic driving assembly and the rotary driving assembly and is used for controlling the first shelf and the second shelf to be switched to a horizontal state or a vertical state by one key.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: when the shelving device is applied to at least one layer of shelves of a refrigerator, the first shelf and the second shelf are respectively rotated to a horizontal state through the first rotating shaft and the second rotating shaft, and the first shelf and the second shelf are horizontally spliced to form a shelf body, so that the storage requirement of articles with the height smaller than that of normal layers is met.

When the articles with higher height are required to be stored, the first shelf and the second shelf are only required to be rotated to the vertical state through the first rotating shaft and the second rotating shaft respectively, then the first rotating shaft and the second rotating shaft are moved to one end of the supporting component (usually one end of the rear wall of the refrigerator), and finally the first shelf and the second shelf are fixed to the vertical state by the fixing component, so that the shelf device is folded. A storage space with a larger height is formed between the upper layer of shelves and the lower layer of shelves adjacent to the shelf device, so that the storage requirement of articles with higher height is met, and a certain layer of shelves are not required to be taken out.

And when the rack is unfolded, the fixing assembly releases the fixing of the first rack and the second rack in the vertical state, and then the first rack and the second rack are rotated to be spliced in the horizontal state. The shelf device provided by the application is convenient to fold and unfold, and the use experience of a user is greatly improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic view of a shelving unit in a horizontal position according to an embodiment of the present application;

FIG. 2 is a schematic view of the shelving unit of FIG. 1 rotated to a vertical position;

FIG. 3 is a schematic view of the shelving unit of FIG. 2 in a fully collapsed condition after movement along the rail assembly;

FIG. 4 is an internal structural view of a refrigerator for assembly with a shelving unit according to an embodiment of the present application;

FIG. 5 is a longitudinal cross-sectional view of the shelving unit of FIG. 1;

FIG. 6 is a schematic view of an assembly of a track assembly, a telescoping assembly and a rotary drive assembly of the shelving unit of the application;

FIG. 7 is a front view of FIG. 6;

FIG. 8 is a rear view of FIG. 6;

FIG. 9 is a block diagram of the track assembly of FIG. 6;

FIG. 10 is a block diagram of a lift link of the rotary drive assembly of FIG. 6;

FIG. 11 is a block diagram of a first shelf according to one embodiment of the present application;

FIG. 12 is a block diagram of a telescoping drive assembly provided in accordance with one embodiment of the present application;

FIG. 13 is a driving structure diagram of a support bar according to an embodiment of the present application;

FIG. 14 is a schematic view of a rotational drive assembly of a shelving unit provided with one embodiment of the application;

FIG. 15 is a simplified operational logic diagram of a shelving unit provided in accordance with one embodiment of the application;

FIG. 16 is a schematic diagram of the operational logic of a shelving unit provided with another embodiment of the application;

fig. 17 is a simplified operational logic diagram of a shelving unit provided in another embodiment of the application.

Reference numerals illustrate:

1-a box body; 11-a fixed groove; 12-a first mounting groove; 13-a second mounting groove; 14-a third mounting groove; 2-a first shelf; 21-a first spindle; 22-a first link; 23-a first roller; 3-a second shelf; 31-a second rotating shaft; 4-telescoping assembly; 5-supporting ribs; 6-supporting blocks; 7-a guide rail assembly; 71-a slider; 72-a slide block slideway; 73-a spindle slideway; 74-fixing piece; 8-a telescopic drive assembly; 81-a driving wheel; 82-driven wheel; 83-conveyor belt; 9-a rotary drive assembly; 91-a driving shaft; 92-a third link; 93-lifting connecting rod; 931-a supporting hole; 932—drive slot; 94-fourth link; 10-supporting rods; 101-drive gear.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," "above," "front," "rear," and the like, may be used herein to describe one element's or feature's relative positional relationship or movement to another element's or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure experiences a position flip or a change in attitude or a change in state of motion, then the indications of these directivities correspondingly change, for example: an element described as "under" or "beneath" another element or feature would then be oriented "over" or "above" the other element or feature. Accordingly, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

In order to solve the technical problem that high-height articles are inconvenient to store in a refrigerator shelf in the prior art, the refrigerator and the shelf device are provided, folding and unfolding are realized through rotation and movement of the shelf device, diversified storage requirements of users can be met on the premise that the shelf device is not taken out, and use experience of the users is greatly improved.

The application uses the vertical arrangement of the refrigerator and the horizontal unfolding state of the shelf device as the reference, the extending direction from the bottom of the refrigerator to the top of the refrigerator is the upper direction, the extending direction from the top of the refrigerator to the bottom of the refrigerator is the lower direction, one side close to the refrigerator door, namely the opening side of the refrigerator body 1 is the front side of the refrigerator, and the wall opposite to the refrigerator door is the rear side of the refrigerator; the left side and the right side are respectively connected with two sides between the box door and the rear box wall. The first end of the support assembly or rail assembly 7 refers to the end thereof adjacent to the refrigerator door, the second end of the support assembly or rail assembly 7 refers to the end thereof adjacent to the rear wall of the refrigerator, and the width direction of the shelving unit refers to the dimension of the shelving unit in the direction of the left and right side walls of the refrigerator.

The vertical state of the first shelf 2 and the second shelf 3 referred to by the present application is not a state in an absolute vertical and horizontal direction, but a state in which a certain deviation is allowed, that is, a state in which the first shelf 2 and the second shelf 3 have a preset included angle (for example, ±15°, 20 ° or 30 °) with an absolute vertical direction, the smaller the preset included angle, the smaller the horizontal storage space occupied after rotating to the vertical state, belongs to the vertical state defined by the present application.

The embodiment of the application provides a shelving unit as shown in fig. 1 to 3, wherein the shelving unit mainly comprises a first shelf 2, a second shelf 3, a supporting component and a fixing component. Wherein, the first rack 2 is fixedly connected to the first rotating shaft 21, the second rack 3 is fixedly connected to the second rotating shaft 31, and the first rotating shaft 21 and the second rotating shaft 31 are generally disposed at bottoms of the first rack 2 and the second rack 3, respectively. The bottom here refers to the side of the first shelf 2 and the second shelf 3 facing away from the top of the refrigerator when in a horizontally unfolded state; the first rotation shaft 21 and the second rotation shaft 31 are each provided to extend in the width direction of the first shelf 2 and the second shelf 3. The supporting components are arranged on one side or two sides of the first shelf 2 and the second shelf 3 in the width direction, and the same ends of the first rotating shaft 21 and the second rotating shaft 31 are movably connected with the same supporting components; for example, the left ends of the first rotating shaft 21 and the second rotating shaft 31 are movably connected with the support components on the left sides of the first shelf 2 and the second shelf 3.

When the first shelf 2 and the second shelf 3 rotate to a horizontal state and are placed at corresponding positions of the supporting component to realize horizontal splicing, the first shelf and the second shelf form a shelf body for placing objects. When articles with larger height need to be placed in the refrigerator, the first shelf 2 and the second shelf 3 are respectively rotated to a vertical state through the first rotating shaft 21 and the second rotating shaft 31 and placed at a position close to one end of the supporting component in the length direction (such as close to the rear wall of the refrigerator), and the first shelf 2 and the second shelf 3 are kept fixed in the vertical state through the fixing component. When the shelving device needs to be unfolded, the fixing assembly releases the fixing of the first shelf 2 and the second shelf 3 in the vertical state, and then the first shelf 2 and the second shelf 3 are rotated to the horizontal state and placed on the supporting assembly for splicing.

In some embodiments, the support assembly employs a rail assembly 7 and the securing assembly may employ a telescoping assembly 4. The same ends of the first rotating shaft 21 and the second rotating shaft 31 are slidably connected to the same rail assembly 7. The telescopic assembly 4 extends along the length direction of the guide rail assembly 7, can be extended or shortened along the length direction of the guide rail assembly 7, and the shortened telescopic assembly 4 can be kept fixed in a contracted state. The first rotating shaft 21 and the second rotating shaft 31 are respectively connected with the telescopic assembly 4 in a rotating way, namely, the first rotating shaft 21 and the second rotating shaft 31 not only can rotate relative to the telescopic assembly 4, but also can slide along the length direction of the guide rail assembly 7. By driving the telescopic member 4 to extend or shorten, the distance between the first rotation shaft 21 and the second rotation shaft 31 and the positions of the first rotation shaft 21 and the second rotation shaft 31 in the longitudinal direction of the rail member 7 can be adjusted.

When the first shelf 2 and the second shelf 3 are respectively rotated to a horizontal state through the first rotating shaft 21 and the second rotating shaft 31, the first shelf 2 and the second shelf 3 are horizontally spliced to form a shelf body, and the shelf body formed by splicing is equivalent to the shelf of other layers in size and can be used for normally placing objects. When articles with larger height are required to be stored on the shelves, the first shelf 2 and the second shelf 3 are driven to rotate around the first rotating shaft 21 and the second rotating shaft 31 respectively, so that the first shelf 2 and the second shelf 3 rotate to a substantially vertical state, then the telescopic component 4 is driven to shrink, the first rotating shaft 21 and the second rotating shaft 31 are driven to approach and slide along the guide rail component 7 towards one end, such as a second end, in the length direction of the guide rail component 7, and then the first shelf 2 and the second shelf 3 in a vertical state are driven to move to a position close to the rear box wall of the refrigerator; the telescopic component 4 is contracted to a contracted state and then is fixedly maintained in the contracted state, so that the first shelf 2 and the second shelf 3 are vertically fixed at the position, close to the rear wall, of the refrigerator, and a higher article storage space is formed between the shelves of the upper and lower adjacent layers of the shelving device on the premise that the shelving device does not need to be taken out, and the diversified storage requirements of users are met.

After the articles with larger height are taken out, the telescopic assembly 4 is unlocked from the contracted state, then the telescopic assembly 4 is stretched and reset, the first rotating shaft 21 and the second rotating shaft 31 are driven to move to proper positions and keep proper distances, and finally the first shelf 2 and the second shelf 3 are rotated to the horizontal state and are horizontally spliced. In order to ensure the integrity of the two horizontally spliced shelves, the splicing matching surfaces of the first shelf 2 and the second shelf 3 are preferably inclined surfaces or stepped surfaces.

In the above embodiment, the first rotating shaft 21 and the second rotating shaft 31 need to be driven by the manual driving telescopic assembly 4 to slide along the guide rail assembly 7, and the first rack 2 and the second rack 3 need to be driven by the manual rotation of the first rotating shaft 21 and the second rotating shaft 31 to rotate and switch between the horizontal state and the vertical state, so that certain inconvenience exists.

In view of this, some preferred embodiments of the present application provide shelving units with telescoping drive assemblies 8, and also with rotary drive assemblies 9 as desired. The telescopic driving assembly 8 is used for driving the telescopic assembly 4 to extend or shorten along the length direction of the guide rail assembly 7, and the rotary driving assembly 9 is used for driving the first rotary shaft 21 and the second rotary shaft 31 to rotate, so as to drive the first shelf 2 and the second shelf 3 to rotate.

It should be understood that the manner in which the rotation driving assembly 9 drives the first rotation shaft 21 and the second rotation shaft 31 to rotate may be to synchronously drive the first rotation shaft 21 and the second rotation shaft 31, or to separately drive the first rotation shaft 21 and the second rotation shaft 31 to rotate, which is not particularly limited herein.

By means of the cooperation of the telescopic driving assembly 8 and the rotary driving assembly 9, the first shelf 2 and the second shelf 3 are automatically driven to rotate to a folded state or move to an unfolded and placed state according to the set steps. The convenience of use is remarkably improved, and a user can conveniently release both hands to pick and place articles.

In some embodiments, the telescopic driving assembly 8 drives the telescopic assembly 4 to extend or retract according to the structure and the operation principle, and reference can be made to fig. 5, 7, 9 and 12. Taking the telescopic component 4 as an example, the first rotating shaft 21 and the second rotating shaft 31 are rotatably connected to the hinge holes of the scissor type telescopic frame, the first end of the scissor type telescopic frame is fixedly connected with the sliding block 71, and the second end of the scissor type telescopic frame is fixedly connected with the second end of the guide rail component 7. The guide rail assembly 7 includes a guide rail body and fixing members 74 provided at both ends of the guide rail body, and the fixing members 74 are used to fix the guide rail body. The guide rail body is provided with a rotating shaft slideway 73 and a sliding block slideway 72 along the length direction thereof, the dimension of the sliding block slideway 72 perpendicular to the length direction of the guide rail component 7, namely the height or the width of the sliding block slideway 72 is larger than the dimension of the rotating shaft slideway 73 along the direction, and the sliding block slideway 72 is closer to the first shelf 2 and the second shelf 3 than the rotating shaft slideway 73. The telescopic driving assembly 8 drives the scissor type telescopic frame to extend or retract through the reciprocating motion of the driving sliding block 71 along the sliding block slideway 72.

The telescopic drive assembly 8 comprises a third drive motor and a transmission assembly connected to the third drive motor. For example, the transmission assembly may be a conveyor belt 83, that is, the telescopic driving assembly 8 is in a form of a third driving motor matched with the conveyor belt 83, an output shaft of the third driving motor is connected with the driving wheel 81, the conveyor belt 83 is rotatably connected with the driving wheel 81 and the driven wheel 82, the sliding block 71 is disposed on the upper surface of the conveyor belt 83, and the sliding block 71 is driven to reciprocate by friction between the surface of the conveyor belt 83 and the sliding block 71. And when the sliding block 71 drives the telescopic assembly 4 to shrink to the shrinking state, the third driving motor stops rotating, and the telescopic assembly 4 is fixed to the shrinking state by means of static friction force between the conveying belt 83 and the sliding block 71. That is, when the telescopic driving assembly 8 adopts a structure that the third driving motor is matched with the conveyor belt 83, the conveyor belt 83 is arranged in the slide block slideway 72. In addition, the telescopic driving assembly 8 can not only adopt a structure that a third driving motor is matched with the conveyor belt 83, but also adopt an electric push rod or a miniature hydraulic rod which is arranged in the slide block slideway 72, and the application is not described in a one-to-one unfolding way.

Further, in order to facilitate the third driving motor to drive the slider 71 to drive the telescopic assembly 4 to shorten to a contracted state or to lengthen to an extended state and then stop rotating, the shelving device provided by the embodiment of the application further includes a position detection assembly for detecting the position of the slider 71, and the position of the slider 71 detected by the position detection assembly reflects the state of the telescopic assembly 4 so as to control the third driving motor to rotate positively, reversely or stop rotating.

For example, the position detecting assembly may include a first detecting assembly disposed at a first end of the slide 72 and a second detecting assembly disposed at a second end of the slide 72, where the first detecting assembly may be a hall type, electromagnetic type or resistive type position sensor, and the material of the corresponding slide 71 may be adaptively adjusted according to the requirement.

In some embodiments, the structure and operation principle of the rotary driving assembly 9 can be referred to fig. 6 to 8, 10 and 11. The first rotating shaft 21 is vertically connected with the first connecting rod 22, and one end of the first connecting rod 22, which is far away from the first rotating shaft 21, is vertically connected with the first roller 23, so that the axial direction of the first roller 23 is parallel to the axial direction of the first rotating shaft 21. The arm of force of the first rotating shaft 21 is increased by the first connecting rod 22, so that the first rotating shaft 21 and the first shelf 2 are driven to rotate by driving the first roller 23 to rotate around the axis of the first rotating shaft 21. The second rotating shaft 31 is vertically connected with a second connecting rod, one end of the second connecting rod, which is far away from the second rotating shaft 31, is vertically connected with a second roller, and the axial direction of the second roller and the axial direction of the second rotating shaft 31 are arranged in parallel. The arm of force of the second rotating shaft 31 is increased by the second connecting rod, so that the second rotating shaft 31 and the second shelf 3 are driven to rotate by driving the second roller to rotate around the axis of the second rotating shaft 31.

The rotary driving assembly 9 adopts a form of a first driving motor matched with a link mechanism, the link mechanism comprises a lifting link 93 which is horizontally arranged, the lifting link 93 is provided with a driving groove 932 which extends along the horizontal direction, and the first roller 23 and the second roller are both arranged in the driving groove 932 in a sliding manner. Wherein, first driving motor drives link mechanism and rotates at rotatory in-process, and link mechanism's setting guarantees that lifting link 93 can remain in the horizontality and go on lifting movement all the time, realizes lifting link 93 elevating movement between first position and second position. The driving groove 932 is matched with the first roller 23 and the second roller, so that the lifting motion of the lifting connecting rod 93 and the driving groove 932 is converted into rotation of the first roller 23 and the second roller around the axis of the first rotating shaft 21 and the axis of the second rotating shaft 31 respectively, and the first rotating shaft 21, the first shelf 2, the second rotating shaft 31 and the second shelf 3 are driven to rotate.

The first position of the lifting link 93 refers to a position of the lifting link 93 when the first shelf 2 and the second shelf 3 rotate to a vertical state, and the second position refers to a position of the lifting link 93 when the first shelf 2 and the second shelf 3 rotate to a horizontal state.

In some embodiments, the linkage specifically includes a third link 92, a lift link 93, and a fourth link 94. The third connecting rod 92 and the fourth connecting rod 94 are equal in length and are arranged in parallel, the first driving motor is fixed to the guide rail assembly 7, the first end of the third connecting rod 92 is fixedly connected with a rotating shaft of the first driving motor, namely the driving shaft 91 in the drawing, the second end of the third connecting rod 92 is rotatably connected with the first end of the lifting connecting rod 93, the second end of the lifting connecting rod 93 is rotatably connected with the second end of the fourth connecting rod 94, and the first end of the fourth connecting rod 94 is rotatably connected with the guide rail assembly 7. As shown in fig. 14, the third link 92, the lifting link 93 and the fourth link 94 cooperate with the guide rail assembly 7 to form a link mechanism with a parallelogram structure, and the first driving motor drives the third link 92 to rotate, so as to drive the lifting link 93 to complete lifting movement in a rotating state, and then act on the first roller 23 and the second roller to drive the first shelf 2 and the second shelf 3 to rotate.

The arrangement of the link mechanism is not limited to the above-described structure, and is applicable to the present application as long as it can drive the lifting link 93 to lift. The rotating shafts of the first driving motors can be fixedly connected with the third connecting rod 92 and the fourth connecting rod 94, or two groups of the first driving motors are arranged, and the rotating shafts of the two groups of the first driving motors are respectively and fixedly connected with one ends of the third connecting rod 92 and the fourth connecting rod 94.

Considering that the lifting link 93 acts on the first roller 23 and the second roller through the driving slot 932, and thus drives the first rack 2 and the second rack 3 to rotate and keep in a vertical state, that is, when the lifting link 93 is in the first position, the lifting link 93 bears a downward component force of the first roller 23 and the second roller acting on the rod body thereof, so as to prevent the lifting link 93 from bending and settling downwards, the rack device provided by the embodiment of the present application further includes a support rod 10.

As shown in fig. 10 and 11, the lifting link 93 is provided with a support hole 931, and the support bar 10 can enter or exit the support hole 931 to support the support bar 10 in an auxiliary manner. That is, by the arrangement of the support rod 10 and the support hole 931, the support of the lifting link 93 at the first position is changed into the three-point support of the third link 92, the fourth link 94 and the support rod 10 at the support hole 931 only by means of the two-point support of the third link 92 and the fourth link 94, so that the rigidity of the lifting link 93 is remarkably improved, and the downward bending deformation of the lifting link 93 is avoided. In addition, the support bar 10 also plays a certain locking role for the lifting link 93. After the supporting rod 10 exits the supporting hole 931 of the lifting connecting rod 93, the supporting and locking of the lifting connecting rod 93 is released, so that the lifting connecting rod 93 is reset to the second position, and the first shelf 2 and the second shelf 3 are driven to rotate to the horizontal state.

The support rod 10 may be manually inserted or may be driven by a motor to enter or exit the support hole 931. As shown in fig. 13, the support rod 10 is driven by a second driving motor and a driving gear 101, and illustratively, the support rod 10 is provided with a rack along the length direction thereof, the driving gear 101 is fixedly connected with a rotating shaft of the second driving motor, and the driving gear 101 is meshed with the rack on the support rod 10. By the forward rotation and the reverse rotation of the second driving motor, the driving gear 101 is driven to rotate forward and reverse, and the supporting rod 10 is driven to enter or exit the supporting hole 931 of the lifting link 93. A reduction gear set may be further provided between the driving gear 101 and the rack as needed, and the present application will not be described in detail.

In some embodiments, in order to avoid that the first rack 2 and the second rack 3 rotate when the articles are stored above the first rack 2 and the second rack 3 due to a false touch operation, the rack device provided by the embodiment of the application further comprises gravity sensors arranged on the first rack 2 and the second rack 3. The gravity sensor is electrically connected with a control mechanism of the power part of the rotary driving assembly 9, when articles are placed on the first shelf 2 or the second shelf 3, the gravity value detected by the gravity sensor in real time is larger than the gravity value when no articles are placed above the first shelf 2 and the second shelf 3, and the control mechanism automatically cuts off a circuit of the power part of the rotary driving assembly 9, namely controls the first driving motor to cut off power, so that the rotary driving assembly 9 can not drive the first shelf 2 and the second shelf 3 to rotate and fold in the article placing state.

It can be understood that the above-mentioned shelf device may be provided not only as a structure for unfolding, splicing and rotating and folding the first shelf 2 and the second shelf 3, but also as a third shelf and a third rotating shaft, etc. as required, and the arrangement of the third shelf and the third rotating shaft may refer to the above-mentioned first shelf 2, the second shelf 3, the first rotating shaft 21 and the second rotating shaft 31.

The embodiment of the application also provides a refrigerator, which comprises the refrigerator body 1, the liner and the shelving device provided by the embodiment, wherein the first shelf 2 is arranged at the opening side of the liner close to the refrigerator body 1, namely one end of a refrigerator door, and the second shelf 3 is arranged at the opening side of the liner far away from the refrigerator body 1, namely the second shelf 3 is arranged at the rear wall of the refrigerator.

The assembly structure of the shelving unit and the inner container will be described taking the example in which the shelving unit is provided with the rail assembly 7, the telescopic assembly 4, the telescopic driving assembly 8 and the rotary driving assembly 9, and the rail assembly 7 includes the rail body and the fixing member 74. Referring to fig. 3 and 4, the inner container is provided with a first mounting groove 12 at a sidewall thereof, which is a sidewall of the inner container adjacent to a refrigerator door. The first mounting groove 12 is used for installing the telescopic component 4, such as the scissor type telescopic frame provided in the above-mentioned application embodiment, when the telescopic component 4 adopts the scissor type telescopic frame, the width of the first mounting groove 12, that is, the size of the first mounting groove along the height direction of the refrigerator is generally set larger, so as to meet the shrinkage requirement of the scissor type telescopic frame. The liner is further provided with a second mounting groove 13, the second mounting groove 13 is used for mounting a guide rail body of the guide rail assembly 7, and the second mounting groove 13 and the first mounting groove 12 extend in the same direction and are communicated with each other, so that the first rotating shaft 21 and the second rotating shaft 31 penetrate through the telescopic assembly 4 to be in sliding connection with the guide rail body fixed in the second mounting groove 13. Wherein the first mounting groove 12 is arranged close to the surface of the inner container relative to the second mounting groove 13.

The two ends of the second mounting groove 13 of the inner container are provided with fixing grooves 11 which are vertically communicated with the second mounting groove 13, the fixing grooves 11 are used for mounting fixing pieces 74, and the guide rail body is fixed relative to the inner container by the aid of the fixing pieces 74. The inner container is provided with a third mounting groove 14 at one side of the second mounting groove 13 facing away from the first mounting groove 12, in other words, the second mounting groove 13 is closer to the surface of the inner container than the third mounting groove 14, the third mounting groove 14 is used for placing the rotary driving assembly 9, and the third mounting groove 14 is communicated with the second mounting groove 13, so that the first rotating shaft 21 and the second rotating shaft 31 penetrate through the guide rail body fixed at the second mounting groove 13 to be connected with the rotary driving assembly 9.

When the shelving unit further comprises a support rod 10 and a second driving motor, the liner can be further provided with a fourth mounting groove, and the fourth mounting groove is used for mounting and fixing the second driving motor. When the lifting link 93 is at the first position, the second driving motor is used to drive the supporting rod 10 to move through the driving gear 101, so that the supporting rod 10 extends into or retreats from the supporting hole 931 of the lifting link 93. The fourth mounting groove is located on the side of the third mounting groove 14 facing away from the second mounting groove 13, i.e. the third mounting groove 14 is located closer to the surface of the inner container than the fourth mounting groove.

Further, the refrigerator provided by the embodiment of the application is also provided with the supporting ribs 5 on the rear wall of the inner container close to the rear wall of the rear box, when the second shelf 3 rotates to be in a horizontal state, the supporting ribs 5 play a role in supporting the rear end of the second shelf 3, and the supporting capacity of the second shelf 3 and the spliced shelf body is improved by being matched with the second rotating shaft 31 for supporting. In addition, the two side walls of the inner container, which are close to the box door, are provided with supporting blocks 6 respectively, the pair of supporting blocks 6 are oppositely protruded, and the upper end surfaces of the supporting blocks 6 are horizontal planes. When the first shelf 2 rotates to a horizontal state, the front end of the first shelf 2 is just arranged on the upper end face of the supporting block 6, the supporting block 6 plays a role in supporting the first shelf 2 in an auxiliary mode, the supporting block 6 is matched with the first rotating shaft 21 to support, and the bearing capacity of the first shelf 2 and the shelf body formed by splicing is improved. The support rib 5 at the rear wall of the inner container can be replaced by a support block 6 according to the requirement.

Due to the arrangement of the supporting ribs 5 and the supporting blocks 6, when the first shelf 2 and the second shelf 3 are horizontally spliced to form a shelf body for placing objects, the supporting blocks 6 and the supporting ribs 5 play a certain role in rotating and limiting the first shelf 2 and the second shelf 3, and the first shelf 2 and the second shelf 3 can only rotate in the direction shown in fig. 14, namely, the first shelf 2 and the second shelf 3 in a horizontal state are respectively rotated downwards by the connecting ends of the first shelf 2 and the second shelf 3. The resetting process is opposite, and the first shelf 2 and the second shelf 3 in the folded state (vertical state) are respectively rotated to the horizontal state from the connection ends of the two opposite directions so as to finish the splicing of the two. When the mating surfaces of the connection ends of the two are inclined surfaces or stepped surfaces, the rotary driving assembly 9 should be arranged to ensure that the shelf with the downward splicing surface rotates to the horizontal state.

The support ribs 5 and the support blocks 6 may also be provided with in-place sensors as required, which are electrically connected to the control mechanism of the rotary drive assembly 9. The position of the first shelf 2 or the second shelf 3 is detected with the aid of an in-place sensor in order to assist in controlling the operation of the power part of the rotary drive assembly 9, such as the second drive motor. The in-place sensor is disposed at the front end of the supporting rib 5, the first shelf 2 and the second shelf 3 rotate to a vertical state and slide towards the second end of the guide rail assembly 7, that is, the rear wall of the refrigerator under the driving of the telescopic assembly 4 and the telescopic driving assembly 8, when the second shelf 3 touches the in-place sensor at the front end of the supporting rib 5, the in-place sensor indicates that the second shelf 3 moves in place, and the position detecting assembly matched with the position of the detecting slider 71 controls the second driving motor to stop running, so as to complete the folding of the first shelf 2 and the second shelf 3. In addition, the in-place sensor can be further provided with upper end surfaces of the supporting ribs 5 and the supporting blocks 6 respectively, and when the first shelf 2 and the second shelf 3 are rotated and reset to a horizontal object placing state, the first shelf 2 and the second shelf 3 respectively touch the in-place sensor, and the control mechanism of the rotary driving assembly 9 controls the second driving motor to stop running.

It should be noted that, the first driving motor, the second driving motor and the third driving motor not only can control the start and stop and the rotation angle according to the position or state information of the first shelf 2, the second shelf 3 and the like detected by the sensor in real time, but also can store the operation sequence and the operation time of each driving motor in the control mechanism according to the set steps according to the folding and unfolding object placing requirements of the first shelf 2 and the second shelf 3, and the folding and unfolding object placing of the first shelf 2 and the second shelf 3 is completed under the control of the control mechanism by sending an instruction to the control mechanism.

Referring to fig. 15, this embodiment shows a control logic of a refrigerator to which the above-described shelving unit is applied: the box body 1 or the liner is provided with a control button, the control button is connected with a control mechanism, the control mechanism is electrically connected with power parts such as a first driving motor, a second driving motor and a third driving motor of the telescopic driving assembly 8, the rotary driving assembly 9 and the supporting rod 10, the control button is used for controlling the expansion or folding of the shelf body, the control button is used for switching different states to send out an expansion or folding instruction of the shelf body to the control mechanism, and the control mechanism is used for controlling the first driving motor, the second driving motor and the third driving motor to operate according to set steps according to the control instruction.

Referring to fig. 16, another set of control logic for a refrigerator employing the shelving unit described above is shown in this embodiment: the control buttons are provided with two groups, namely a first control button and a second control button, the first control button is electrically connected with the power parts of the telescopic driving assembly 8 and the rotary driving assembly 9, namely a first driving motor and a third driving motor through a control mechanism, the control mechanism sends out an unfolding or folding instruction of the shelf body to the control mechanism by means of different states of the first control button, and the control mechanism controls the first driving motor and the third driving motor to operate according to set steps according to the control instruction. The second control button is directly electrically connected with the power part of the support rod 10, namely the second driving motor, and the second control button at least comprises three states which are respectively used for controlling the second driving motor to rotate positively, reversely and cut off power.

When the first control button controls the first shelf 2 and the second shelf 3 to be folded in place, the lifting connecting rod 93 is at the first position, and the second control button is manually operated to control the second driving motor to drive the supporting rod 10 to enter the supporting hole 931 and switch the second driving motor to the power-off state. When the first shelf 2 and the second shelf 3 need to be unfolded, the second control button is operated to control the second driving motor to drive the supporting rod 10 to exit the supporting hole 931 and unlock the first shelf 2 and the second shelf 3, then the first control button is operated to send out unfolding instructions of the first shelf 2 and the second shelf 3 to the control mechanism, and the control mechanism controls the first driving motor and the third driving motor to operate according to set steps.

In addition, three groups of control buttons may be provided as in fig. 17, namely, a first control button, a second control button, and a third control button. At this time, the first control button may be electrically connected to the first driving motor, the second control button may be electrically connected to the second driving motor, and the third control button may be electrically connected to the driving motor. The first control button, the second control button and the third control button at least comprise three states for controlling the corresponding driving motor to rotate forwards, reversely and cut off power. At this time, the first control button, the second control button and the third control button are manually operated according to a certain sequence when the shelf device is unfolded and folded.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (19)

1. A shelving unit, comprising:

The first shelf and the second shelf are fixedly connected with a first rotating shaft, the second shelf is fixedly connected with a second rotating shaft, the first shelf and the second shelf are configured to be switched between a horizontal state and a vertical state in a rotating mode, and when the first shelf and the second shelf are rotated to the horizontal state, the first shelf and the second shelf are spliced to form a shelf body for placing objects;

The support assembly is arranged on at least one side of the width direction of the first shelf and the second shelf, and the same ends of the first rotating shaft and the second rotating shaft are movably connected with the same support assembly;

The fixing assembly is used for fixing or unlocking the first shelf and the second shelf in a vertical state when the first rotating shaft and the second rotating shaft are arranged at one end of the supporting assembly in the length direction; the vertical state is a state that an included angle of the first shelf and the second shelf relative to the vertical direction is smaller than a preset included angle.

2. The shelving unit of claim 1, wherein the support assembly is a rail assembly, the same ends of the first rotation shaft and the second rotation shaft being slidably connected to the same rail assembly;

The fixing component is a telescopic component, the first rotating shaft and the second rotating shaft penetrate through the telescopic component and are rotationally connected with the telescopic component, and the telescopic component is used for driving the first rotating shaft and the second rotating shaft to slide along the guide rail component and is configured to be capable of being fixed and unlocked in a contracted state;

When the telescopic component is fixed in a contracted state, the first shelf and the second shelf are rotated to be vertical, and the first rotating shaft and the second rotating shaft slide to be close to one end of the guide rail component in the length direction.

3. A shelving unit according to claim 2, wherein the telescopic assembly is connected to a telescopic drive assembly for driving the telescopic assembly to extend or retract.

4. A shelving unit according to claim 3, wherein the telescoping assembly has a slider at a first end and a second end secured to the rail assembly, the slider being slidably connected to the rail assembly; the device also comprises a position detection assembly for detecting the position of the sliding block.

5. The shelving unit of any one of claims 2-4, wherein the first shaft and the second shaft are coupled to a rotary drive assembly, the rotary drive assembly configured to rotate the first shaft and the second shaft to switch the first shelf and the second shelf between a horizontal state and a vertical state.

6. The shelving unit of claim 5, wherein the first shaft is vertically connected to a first link, an end of the first link facing away from the first shaft being vertically connected to a first roller; the second rotating shaft is vertically connected with a second connecting rod, and one end of the second connecting rod, which is away from the second rotating shaft, is vertically connected with a second roller;

The rotary driving assembly comprises a first driving motor and a connecting rod mechanism rotationally connected with the first driving motor, the connecting rod mechanism comprises a lifting connecting rod which is horizontally arranged, the lifting connecting rod is provided with a driving groove, and the first roller and the second roller are slidingly connected with the driving groove;

The lifting connecting rod is driven by the first driving motor to lift between a first position and a second position, and when the lifting connecting rod moves to the first position, the first shelf and the second shelf are driven to rotate to a vertical state; when the lifting connecting rod moves to the second position, the first shelf and the second shelf are driven to rotate to a horizontal state.

7. The shelving unit of claim 6, wherein the lifting link defines a support aperture, further comprising a support bar that mates with the support aperture and fixedly supports the lifting link in the first position.

8. The shelving unit of claim 7, wherein the support bar is provided with a rack, the rack being in meshed connection with a drive gear, the drive gear being connected to a second drive motor for driving the support bar into or out of the support hole.

9. The shelving unit of claim 2, wherein the telescoping assembly is a scissor jack.

10. The shelving unit of claim 4, wherein the rail assembly includes a rail body and fixing members disposed at both ends of the rail body, the rail body is provided with a rotating shaft slide and a slider slide, the first rotating shaft and the second rotating shaft are slidably disposed on the rotating shaft slide, and the slider is slidably disposed on the slider slide.

11. The shelving unit of claim 10, wherein the telescoping drive assembly includes a third drive motor and a transmission assembly coupled to the third drive motor, the transmission assembly for driving the slider to reciprocate along the slider slide.

12. A shelving unit according to claim 5, wherein the first shelf and/or the second shelf is provided with a gravity sensor, the gravity sensor being electrically connected to a control mechanism of the rotary drive assembly.

13. The shelving unit of claim 1, wherein the mating surfaces of the first shelf and the second shelf are stepped surfaces.

14. A refrigerator characterized by comprising a refrigerator body, a liner and the shelving device as defined in any one of claims 1 to 13, wherein the first shelf is arranged at one end of the liner, which is close to the opening side of the refrigerator body, and the second shelf is arranged at one end of the liner, which is far away from the opening side of the refrigerator body.

15. The refrigerator of claim 14, wherein and when the fixed assembly is a telescoping assembly, the support assembly is a rail assembly; the inner container is provided with a first mounting groove for accommodating the telescopic assembly and a second mounting groove for accommodating the guide rail assembly on the side wall adjacent to the opening side of the box body, and the first mounting groove is close to the surface of the inner container than the second mounting groove and is communicated with the second mounting groove.

16. The refrigerator of claim 15, wherein when the shelving unit is provided with a rotation driving assembly, the inner container is provided with a third mounting groove for accommodating the rotation driving assembly, and the second mounting groove is closer to the surface of the inner container than the third mounting groove and penetrates the third mounting groove.

17. The refrigerator of claim 16, wherein the inner container is provided with a support rib at a rear wall thereof on a side opposite to an opening side of the cabinet; and/or the inner container is provided with a supporting block at the position, close to the opening side of the box body, of the inner container.

18. The refrigerator of claim 17, wherein the support ribs and/or the support blocks are provided with in-place sensors for detecting the position of the shelf body, the in-place sensors being electrically connected with a control mechanism of the rotary drive assembly.

19. The refrigerator of claim 14, wherein when the shelving unit is provided with a telescopic drive assembly and a rotary drive assembly, the cabinet or the liner is provided with a control button;

The control button is electrically connected with the telescopic driving assembly and the rotary driving assembly and is used for controlling the first shelf and the second shelf to be switched to a horizontal state or a vertical state by one key.