CN113932532B

CN113932532B - Refrigerator with a refrigerator body

Info

Publication number: CN113932532B
Application number: CN202110700983.XA
Authority: CN
Inventors: 张升刚; 韩丽丽; 张月; 张守杰; 闫宝升; 孙启东; 赵越
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2023-08-04
Anticipated expiration: 2041-06-23
Also published as: CN113932532A

Abstract

The invention relates to a refrigerator, which comprises a refrigerator body, a layer frame, a supporting arm and a driving bracket, wherein a refrigerating compartment is arranged in the refrigerator body; the layer frame is arranged in the refrigerating compartment; the first supporting arm is rotatably connected in the refrigerating compartment and supports the bottom of the layer rack; the driving bracket is movably arranged below the layer frame and can slide along the front-back direction of the box body; the driving support slides along the front and back directions of the box body, can drive the first supporting arm to rotate and can drive the layer rack to lift. The invention utilizes the cooperation of the driving bracket, the first supporting arm and the layer rack, and controls the rotation amplitude of the supporting arm by the forward and backward movement of the driving bracket, so as to support and adjust the height of the layer rack in the refrigerating room, thereby realizing the function of adjusting the lifting of the layer rack. Through the cooperation of drive support and first support arm, the atress to the layer frame is gradually passed to can easily, stably control the layer frame and go up and down, be favorable to improving user's convenience of use, be favorable to reducing the holistic cost of refrigerator.

Description

Refrigerator with a refrigerator body

Technical Field

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

Background

With the improvement of the living standard of people, a refrigerator has become one of indispensable home appliances. In a large-capacity refrigerator, shelves are generally provided to facilitate layering of articles.

In the related art, for most refrigerators, the shelf position is fixed, and only a plurality of fixed positions can adjust the height of the shelf, and when the shelf position needs to be adjusted, the shelf position needs to be changed usually by cleaning up the articles on the shelf, which is very inconvenient. Some layer frame structures adopt a motor to drive the layer frame to move up and down, and the use aspect is that the cost of the whole layer frame structure is higher because the layer frame structure relates to the motor and other structures.

Disclosure of Invention

The invention aims to provide a refrigerator so as to optimize a layer rack structure in the refrigerator in the prior art, and provide a structure for manually adjusting the layer rack to move up and down, so that the use convenience of a user is improved, and the overall cost of the refrigerator is reduced.

In order to solve the technical problems, the invention adopts the following technical scheme:

according to one aspect of the present invention, there is provided a refrigerator including: the box body is internally provided with a refrigeration compartment; the layer rack is arranged in the refrigerating compartment; the first supporting arm is arranged below the layer frame; the first support arm is rotatably connected in the refrigeration compartment, and one end of the first support arm supports the bottom of the layer frame; the driving bracket is movably arranged below the layer frame and can slide along the front-back direction of the box body; the driving bracket is connected with the first supporting arm; when the driving support slides along the front-back direction of the box body, the driving support can drive the first supporting arm to rotate and drive the layer rack to lift.

According to some embodiments of the present application, the refrigerator further includes two mounting boxes, and the two mounting boxes are respectively and fixedly arranged on the left and right side walls of the refrigeration compartment; two ends of the layer rack are respectively erected on one mounting box; the first support arm is arranged in the mounting box, and one end of the first support arm is rotatably connected to the inner wall of the mounting box; the driving support is movably arranged in the mounting box.

According to some embodiments of the present application, the driving bracket includes a driving plate extending in a front-rear direction of the case and a driving arm protruding on the driving plate; the driving plate is movably arranged in the mounting box and can slide in the mounting box along the front-back direction of the box body; the driving arm is in sliding connection with the first supporting arm, and the first supporting arm is hinged to the inner wall of the mounting box; when the driving plate slides along the front-back direction of the box body, the driving arm can drive the first supporting arm to rotate and drive the layer rack to lift.

According to some embodiments of the present application, the first support arms are provided in plurality and are arranged in parallel and spaced front and back; the driving arms are provided with a plurality of driving arms and are arranged in one-to-one correspondence with the first supporting arms.

According to some embodiments of the present application, the first support arm is provided with a guide chute extending along an axial direction thereof; the driving arm is convexly provided with a supporting shaft, and the supporting shaft is connected in the guide chute in a sliding way; when the driving plate slides along the front-back direction of the box body, the supporting shaft slides in the guide sliding groove and drives the first supporting arm to rotate.

According to some embodiments of the present application, the driving bracket further comprises a connecting sleeve, the connecting sleeve is rotatably connected to the driving arm, and the connecting sleeve is slidably sleeved on the first supporting arm; when the driving plate slides along the front-back direction of the box body, the connecting sleeve slides on the first supporting arm and drives the first supporting arm to rotate.

According to some embodiments of the present application, the driving bracket includes a driving plate extending in a front-rear direction of the case; the driving plate is movably arranged in the mounting box and can slide in the mounting box along the front-back direction of the box body; a limiting block is arranged in the mounting box and is rotatably connected to the inner wall of the mounting box; one end of the first supporting arm is hinged to the driving plate, and the first supporting arm is slidably arranged on the limiting block in a penetrating mode; when the driving plate slides along the front-back direction of the box body, the driving plate can drive the first supporting arm to rotate around the hinge shaft of the first supporting arm and slide relative to the limiting block so as to drive the layer rack to lift.

According to some embodiments of the application, the driving plate is provided with a rack extending along the front-rear direction of the case; a gear assembly is arranged in the mounting box, and a handle is rotatably connected to the outer wall of the mounting box; the rotating end of the handle is in transmission connection with the gear assembly and is in meshed transmission connection with the rack through the gear assembly; when the handle rotates forwards or reversely, the handle can drive the driving plate to slide in the front-back direction of the box body in the mounting box.

According to some embodiments of the present application, the refrigerator further comprises a second support arm and a linkage shaft; the second supporting arm is arranged in the other mounting box; the second support arm is opposite to the first support arm and is arranged in parallel, one end of the second support arm is hinged to the inner wall of the mounting box, and the other end of the second support arm supports the bottom of the layer frame; the linkage shaft is arranged between the first support arm and the second support arm, and two ends of the linkage shaft are respectively connected with the hinged ends of the first support arm and the second support arm; the first supporting arm drives the second supporting arm to synchronously rotate through the linkage shaft.

According to some embodiments of the present application, the refrigerator further comprises a third support arm; the third supporting arm is arranged in the mounting box and is arranged in parallel and at intervals with the second supporting arm in front-back direction; one end of the third supporting arm is hinged to the inner wall of the mounting box, and the other end of the third supporting arm supports the bottom of the layer frame; a connecting rod is arranged between the second supporting arm and the third supporting arm, and two ends of the connecting rod are respectively hinged with the second supporting arm and the third supporting arm; the second supporting arm drives the third supporting arm to synchronously rotate through the connecting rod.

As can be seen from the technical scheme, the embodiment of the invention has at least the following advantages and positive effects:

in the refrigerator provided by the embodiment of the invention, the driving support, the first support arm and the layer frame are matched, and the rotation amplitude of the support arm is controlled by the forward and backward movement of the driving support, so that the height of the layer frame in a refrigerating room is supported and adjusted, and the function of adjusting the lifting of the layer frame is realized. Wherein, through drive support and first support arm cooperation, the linear motion with the drive support converts the rotary motion of first support arm into, converts the rotary motion of first support arm into the elevating movement of layer frame at last, is favorable to first support arm and drive support to gradually transmit the atress to the layer frame to can easily, stably control the layer frame and go up and down, be favorable to improving user's convenience of use, be favorable to reducing the holistic cost of refrigerator.

Drawings

Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the shelf and the mounting box in fig. 1.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a cross-sectional view taken along A-A of fig. 2.

Fig. 5 is a schematic view of the mounting box of fig. 4 with the inner wall panel removed.

Fig. 6 is a schematic view of the structure of fig. 5 in another state.

Fig. 7 is a schematic view of the structure of the support mechanism and the driving mechanism in fig. 2.

Fig. 8 is a schematic view of the driving mechanism in fig. 7.

Fig. 9 is a schematic diagram of a connection structure between the driving mechanism and the first support arm in fig. 8.

Fig. 10 is a schematic view of another connection structure between the driving mechanism and the first support arm in fig. 9.

Fig. 11 is a schematic view of still another connection structure between the driving mechanism and the first support arm in fig. 9.

The reference numerals are explained as follows: 1. a case; 11. a refrigeration compartment; 12. a tank liner; 2. a door body; 3. a layer rack; 31. a shelf; 32. a support frame; 321. a clamping groove; 4. a mounting box; 41. an inner wall panel; 42. an outer wall panel; 5. a support mechanism; 51. a first support arm; 511. a guide chute; 52. a second support arm; 53. a third support arm; 54. a linkage shaft; 55. a connecting rod; 6. a driving mechanism; 61. a drive bracket; 611. a driving plate; 6111. a positioning groove; 612. a driving arm; 613. a rack; 614. a support shaft; 615. a vertical plate; 616. a shifting block; 617. connecting sleeves; 618. a limiting block; 62. a handle; 63. a positioning block; 64. a driven gear; 65. an amplifying gear; 651. a first gear; 652. a second gear; 66. a transmission gear.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It will be understood that the invention is capable of various modifications in various embodiments, all without departing from the scope of the invention, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the invention.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

For convenience of description, unless specified otherwise, directions of up, down, left, right, front and rear are all referred to a state of the refrigerator when the refrigerator is in use, and a door body of the refrigerator is in front and a direction opposite to the door body is in rear.

Referring to fig. 1, a refrigerator according to an embodiment of the present invention mainly includes a refrigerator body 1, a door 2, a shelf 3, a mounting box 4, a supporting mechanism 5 and a driving mechanism 6.

The box body 1 adopts a cuboid structure. A plurality of mutually separated refrigerating compartments 11 can be arranged in the box body 1, and each separated refrigerating compartment 11 can be used as an independent storage space, such as a freezing chamber, a refrigerating chamber, a temperature changing chamber and the like, so as to meet different refrigerating demands of freezing, refrigerating, changing temperature and the like according to different food types and store the food. The plurality of refrigeration compartments 11 may be arranged in a vertically spaced apart relationship, or in a laterally spaced apart relationship.

The box body 1 is internally provided with a box liner 12, and a refrigeration compartment 11 is formed in the box liner 12. It should be noted that a plurality of containers 12 may be provided. Only one refrigerating compartment 11 may be provided in the same container 12, or a plurality of refrigerating compartments 11 may be provided.

The door body 2 is provided at the front side of the cabinet 1 for opening and closing the refrigerating compartment 11. It is understood that the door body 2 may be provided in plurality and is provided in one-to-one correspondence with the refrigerating compartments 11. One door body 2 can also open and close a plurality of refrigeration compartments 11 at the same time.

The shelf 3 is movably arranged in the refrigeration compartment 11, i.e. the shelf 3 is movably arranged in the container 12 and can move up and down along the container 12. The shelf 3 is used for layering articles. It will be appreciated that a plurality of shelves 3 may be provided and arranged in a vertically spaced relationship.

The shelf 3 includes a shelf 31 and a support frame 32. The shelf 31 has a plate-like structure and is disposed in the refrigerating compartment 11 in a lateral direction. The support 32 is provided in the refrigerating compartment 11 and extends in the front-rear direction of the cabinet 1. The two support frames 32 are provided and are provided at both lateral ends of the shelf 31. The support frame 32 serves to fix and reinforce the structure of the shelf 31 so as to fix the shelf 31 within the refrigerating compartment 11. In some embodiments, a clamping groove 321 is concavely formed on the side wall of the support frame 32 facing the shelf 31, and the end of the shelf 31 is inserted into the clamping groove 321.

The mounting box 4 is fixedly mounted on the inner wall of the refrigeration compartment 11, namely, the mounting box 4 is fixedly mounted on the inner wall of the tank 12. The two mounting boxes 4 are provided and are fixed on the left and right side walls of the liner 12 in a left and right opposite manner. The mounting boxes 4 are arranged below the layer frames 3 and can be used for respectively supporting two ends of the layer frames 3.

Fig. 2 is a schematic structural view of the layer stand 3 and the mounting box 4 in fig. 1. Fig. 3 is an exploded view of fig. 2.

Referring to fig. 2 and 3, a receiving space (not shown) is provided in the mounting box 4, and the receiving space can be used for mounting the supporting mechanism 5 and the driving mechanism 6.

The mounting box 4 comprises an inner wall panel 41 and an outer wall panel 42. The inner wall plate 41 and the outer wall plate 42 are arranged at a left-right interval, the outer wall plate 42 faces the inner wall of the refrigerating compartment 11, and the inner wall plate 41 faces the center of the refrigerating compartment 11. An accommodating space is formed between the inner wall plate 41 and the outer wall plate 42. The outer wall plate 42 and the inner wall plate 41 may be both fixed to the inner side wall of the refrigerating compartment 11.

Referring to fig. 3, the supporting mechanism 5 is disposed in the mounting box 4 and is used for supporting the shelf 3, and controlling the shelf 3 to lift above the mounting box 4, so as to realize the lifting function of the shelf 3 in the refrigeration compartment 11.

The support mechanism 5 includes a plurality of support arms. One end of the support arm is hinged to the inner wall of the mounting box 4 or directly to the inner wall of the refrigeration compartment 11. The other end of the support arm is supported at the bottom of the shelf 3 to support the shelf 3. The support arm can directly lean against and support the bottom of the shelf 31, and can also lean against the support frame 32. As the support arm rotates, the shelf 3 can move up and down relative to the mounting box 4, thereby moving up and down in the refrigeration compartment 11.

Fig. 4 is a cross-sectional view taken along A-A of fig. 2. Fig. 5 is a schematic view of the mounting box 4 of fig. 4 with the inner wall plate 41 removed. Fig. 6 is a schematic view of the structure of fig. 5 in another state. Fig. 7 is a schematic structural view of the supporting mechanism 5 and the driving mechanism 6 in fig. 2.

Referring to fig. 3-7, in some embodiments, the plurality of support arms includes a first support arm 51, a second support arm 52, and a third support arm 53. The support mechanism 5 further includes a linkage shaft 54 connected between the first support arm 51 and the second support arm 52, and a link 55 connected between the second support arm 52 and the third support arm 53.

The first support arm 51 is disposed within one of the mounting boxes 4 and is adapted to be directly coupled to the drive mechanism 6. The first support arm 51 is rotatably coupled to the inner wall of the mounting box 4. The first supporting arms 51 may be provided in plurality, and the plurality of first supporting arms 51 are located in the same mounting box 4 and are arranged in parallel and spaced front and back. The plurality of first support arms 51 are each directly connected to the drive mechanism 6.

The second supporting arm 52 is disposed in the other mounting box 4, and the second supporting arm 52 is rotatably connected to the inner wall of the mounting box 4 and is parallel to and opposite to the first supporting arm 51.

The linkage shaft 54 is disposed between the two mounting boxes 4, and one end of the linkage shaft 54 extends into one of the mounting boxes 4 to be connected with a first support arm 51. The other end of the linkage shaft 54 extends into the other mounting box 4 and is connected to the second support arm 52. The first support arm 51 can drive the second support arm 52 to rotate synchronously through the linkage shaft 54.

The third supporting arm 53 and the second supporting arm 52 are arranged in the same mounting box 4, and the third supporting arm 53 is rotatably connected to the inner wall of the mounting box 4 and is arranged in a front-back parallel interval with the second supporting arm 52.

The connecting rod 55 is provided in the mounting box 4 where the third support arm 53 and the second support arm 52 are located. One end of the link 55 is hinged with the second support arm 52, and the other end of the link 55 is hinged with the third support arm 53. The second support arm 52 can drive the third support arm 53 to rotate synchronously through the connecting rod 55.

The first support arm 51, the second support arm 52 and the third support arm 53 are matched through the linkage shaft 54 and the connecting rod 55, so that synchronous rotation can be realized. That is, the driving mechanism 6 is only required to be provided with a group and is directly connected with the first supporting arm 51, and the first supporting arm 51 is controlled to rotate, so that the first supporting arm 51, the second supporting arm 52 and the third supporting arm 53 can be simultaneously controlled to synchronously rotate, and the shelf 3 can stably rise and fall in the refrigeration compartment 11.

It will be appreciated that the driving mechanism 6 may be provided in two groups, respectively provided in the two mounting boxes 4, and that the second supporting arm 52 and the third supporting arm 53 are replaced by the first supporting arm 51.

Fig. 8 is a schematic diagram of the driving mechanism 6 in fig. 7.

Referring to fig. 4 to 8, the driving mechanism 6 is used for controlling the first support arm 51 to rotate, so as to control the shelf 3 to manually lift. The driving mechanism 6 mainly comprises a driving bracket 61, a gear assembly, a handle 62 and a positioning block 63.

The drive bracket 61 is provided in the mounting box 4 and is slidable in the front-rear direction of the casing 1. The driving bracket 61 is connected with the first supporting arm 51, and when the driving bracket 61 slides along the front-back direction of the box body 1, the driving bracket 61 can drive the first supporting arm 51 to rotate, so that the height of the end part of the supporting layer frame 3 of the first supporting arm 51 is changed, and the layer frame 3 is controlled to lift in the refrigeration compartment 11.

Referring to fig. 8, the driving bracket 61 includes a driving plate 611, a driving arm 612 protruding from the driving plate 611, and a rack 613 disposed on the driving plate 611.

The driving plate 611 extends in the front-rear direction of the casing 1. The drive plate 611 is movably provided in the mounting case 4, and is slidable in the front-rear direction of the case 1 in the mounting case 4. It should be noted that a sliding groove (not shown) may be provided in the mounting box 4, and the driving plate 611 is limited to slide in the sliding groove, so that the movement of the driving plate 611 is more stable.

The driving plate 611 is provided with a positioning groove 6111, and the positioning groove 6111 is used for being matched with the positioning block 63, so that the driving plate 611 is limited in the mounting box 4, and the driving plate 611 is prevented from moving forwards and backwards. It is understood that a plurality of positioning grooves 6111 may be provided on the driving plate 611 and arranged at intervals in the front-rear direction. The plurality of positioning grooves 6111 can limit the driving plate 611 at different positions in the mounting box 4.

Referring to fig. 7 and 8, a driving arm 612 is integrally formed on the driving plate 611, and the driving arm 612 is used to connect with the first supporting arm 51. When the driving plate 611 slides along the front-back direction of the case 1, the driving arm 612 can drive the first supporting arm 51 to rotate, and further drive the shelf 3 to lift. It should be noted that, in some embodiments, the driving arm 612 may be omitted, and the driving plate 611 is directly connected to the first supporting arm 51 and directly drives the first supporting arm 51 to rotate, so as to drive the shelf 3 to lift.

The driving arms 612 may be provided in plurality and arranged in a front-rear interval. Each driving arm 612 can be connected with a first supporting arm 51, that is, the driving arms 612 can drive the first supporting arms 51 to rotate synchronously, and the first supporting arms 51 support and control the lifting of the shelf 3, so that the shelf 3 is supported and lifted more stably.

Referring to fig. 5 to 8, a rack 613 is integrally formed on the driving plate 611, and the rack 613 extends in a straight line in the front-rear direction of the case 1. The rack 613 is used for meshing transmission with the gear assembly, and thus can move back and forth in the front-rear direction of the case 1 in the mounting case 4 by controlling the driving plate 611 by the gear assembly.

Referring still to fig. 5 to 8, a gear assembly is disposed in the mounting box 4, one end of the gear assembly is engaged with a rack 613 on the driving plate 611, and the other end is in driving connection with the handle 62. The handle 62 rotates to drive the gear assembly to rotate, and then drives the driving plate 611 to slide back and forth along the front-back direction of the case 1 through the rack 613.

The handle 62 is rotatably connected in the refrigerating compartment 11 and rotatably connected to the outer wall of the mounting box 4. The rotating end of the handle 62 is in driving connection with the gear assembly and is in meshed transmission with the rack 613 through the gear assembly. The drive bracket 61 can move back and forth in the extending direction of the rack 613 when the handle 62 rotates, and thus can drive the first support arm 51 to rotate synchronously.

Referring to fig. 8, in some embodiments, the gear assembly includes a driven gear 64, an amplifying gear 65, and a transmission gear 66.

The driven gear 64 is rotatably connected to the inner wall of the mounting case 4 and is coaxially and drivingly connected to the handle 62. When the handle 62 rotates, the driven gear 64 can be driven to rotate synchronously.

The amplification gear 65 is provided between the driven gear 64 and the rack 613, and the amplification gear 65 is used for amplifying the rotation range of the driven gear 64, further enlarging the movement stroke of the driving bracket 61 by matching the rack 613, further enlarging the rotation range of the first support arm 51, and enlarging the lifting range of the shelf 3.

The amplifying gear 65 includes a first gear 651 and a second gear 652 that are integrally formed and coaxially disposed. The outer diameter of the first gear 651 is greater than the outer diameter of the second gear 652. The first gear 651 is for meshing transmission with the rack 613, and the second gear 652 is for meshing transmission with the driven gear 64.

The amplifying gear 65 is provided in plural, plural variable gears are engaged with each other to achieve multi-stage amplification of the rotation range of the driven gear 64. The amplifying gears 65 are meshed with each other through a first gear 651 with a larger outer diameter and a second gear 652 with a smaller outer diameter, and finally meshed with the rack 613 through the first gear 651, and meshed with the driven gear 64 through the second gear 652, so that the rotation range of the driven gear 64 is amplified in multiple stages, and further the linear movement stroke amplification of the rack 613 is realized. The plurality of amplifying gears 65 are engaged with the driven gear 64, so that the handle 62 can be rotated by a small angle, that is, the driving bracket 61 can be controlled to linearly move in a wide range, and the range of the elevation of the shelf 3 can be widened.

It will be appreciated that only one of the amplifying gears 65 may be provided, in which case the first gear 651 of the amplifying gear 65 is in meshed communication with the rack 613 and the second gear 652 is in meshed communication with the driven gear 64.

The transmission gear 66 is provided between the amplification gear 65 and the driven gear 64, or between the amplification gear 65 and the amplification gear 65. The transmission gear 66 may be provided in plurality.

The transmission gear 66 is disposed between the amplifying gear 65 and the driven gear 64, and the transmission gear 66 is respectively meshed with the driven gear 64 and the second gear 652 of the amplifying gear 65, so as to realize meshing transmission between the amplifying gear 65 and the driven gear 64. And a transmission gear 66 disposed between the amplification gear 65 and the amplification gear 65, the transmission gear 66 being meshed with a first gear 651 of the amplification gear 65 adjacent to the driven gear 64 and with a second gear 652 of the amplification gear 65 adjacent to the rack 613 to achieve a meshed transmission between the amplification gear 65 and the amplification gear 65.

Referring to fig. 5 to 7, a positioning block 63 is disposed in the mounting box 4, and the positioning block 63 is configured to be clamped with the positioning slot 6111 to limit the driving bracket 61 and prevent the layer frame 3 from descending. The positioning block 63 is rotatably connected to the inner wall of the mounting box 4. The positioning grooves 6111 on the driving plate 611 are respectively used for being clamped with the positioning blocks 63, so that the driving bracket 61 is clamped at different positions in the mounting box 4, and the shelves 3 are further kept at different height positions.

Referring to fig. 5 and 6, when the positioning groove 6111 moves linearly under the positioning block 63 along with the driving plate 611 during the lifting process of the shelf 3, the positioning block 63 can be partially extended into the positioning groove 6111 by controlling the rotation of the positioning block 63. At this time, when the shelf 3 descends, the driving plate 611 moves reversely, and the end wall of the positioning slot 6111 can be clamped on the positioning block 63, so that the driving plate 611 is prevented from moving, and the height position of the shelf 3 is further fixed.

In some embodiments, the positioning block 63 is provided with one or more bayonets (not labeled in the figures) for being clamped with the end wall of the positioning slot 6111, so that the positioning block 63 is stably clamped on the driving plate 611.

Still referring to fig. 7 and 8, the driving bracket 61 further includes a vertical plate 615 protruding on the driving plate 611, and the vertical plate 615 is located at one side of the positioning slot 6111. The side wall of the vertical plate 615 facing the positioning groove 6111 is provided with a shifting block 616, and the shifting block 616 is positioned above the side of the positioning groove 6111. The height of the shifting block 616 is opposite to the positioning block 63, and during the forward and backward movement of the driving plate 611, the shifting block 616 is used for driving the positioning block 63 to rotate, so that the positioning block 63 rotates and stretches into the positioning groove 6111.

Fig. 9 is a schematic diagram of a connection structure between the driving mechanism 6 and the first support arm 51 in fig. 8.

Referring to fig. 9, in some embodiments, a supporting shaft 614 is protruding from a side wall of the driving arm 612, and a guiding chute 511 extending along an axial direction of the first supporting arm 51 is provided on the first supporting arm 51, where the guiding chute 511 is in a strip shape. The support shaft 614 is slidably connected to the guide chute 511.

When the driving plate 611 slides in the front-rear direction of the case 1, the supporting shaft 614 on the driving arm 612 can slide in the guide chute 511 while driving the first supporting arm 51 to rotate in the forward or reverse direction.

Referring to fig. 9, in combination with fig. 5 and 6, when the driving plate 611 moves backward along the case 1 in the mounting box 4, the driving arm 612 can rotate the first supporting arm 51 and raise the shelf 3. When the driving plate 611 moves forward along the case 1 in the mounting box 4, the driving arm 612 can drive the first supporting arm 51 to rotate reversely and lower the shelf 3.

Fig. 10 is a schematic diagram of another connection structure between the driving mechanism 6 and the first support arm 51 in fig. 9.

Referring to fig. 10, the present embodiment is different from the embodiment of fig. 9 in the structure of the driving bracket 61. In this embodiment, the driving bracket 61 further includes a connecting sleeve 617, the connecting sleeve 617 is rotatably connected to the top end of the driving arm 612, and the connecting sleeve 617 is slidably sleeved on the first supporting arm 51.

When the driving plate 611 slides in the front-rear direction of the case 1, the connection sleeve 617 on the driving arm 612 can slide on the first supporting arm 51, driving the first supporting arm 51 to rotate in the forward or reverse direction. In this process, the connecting sleeve 617 can rotate relative to the driving arm 612 and is stably supported on the first supporting arm 51, so that gravity of the shelf 3 is stably transferred to the driving plate 611 through the connecting sleeve 617, and thus lifting of the shelf 3 can be more stably controlled. Compared with the scheme of forming the guide chute 511 on the first support arm 51, the scheme is beneficial to ensuring the structural strength of the first support arm 51, and further improving the bearing capacity of the layer frame 3.

Fig. 11 is a schematic view of a further connection structure between the driving mechanism 6 and the first support arm 51 in fig. 9.

Referring to fig. 11, the present embodiment is different from the embodiment of fig. 9 in the structure of the driving bracket 61. In the present embodiment, the driving arm 612 is not provided on the driving plate 611 of the driving bracket 61. And one end of the first support arm 51 is directly hinged to the driving plate 611, and the other end of the first support arm 51 is abutted against and supported on the shelf 3. Meanwhile, a limiting block 618 is arranged in the installation box 4, and the limiting block 618 is rotatably connected to the inner wall of the installation box 4. The first support arm 51 is slidably disposed through the limiting block 618, that is, the limiting block 618 is slidably sleeved on the first support arm 51.

When the driving plate 611 slides in the front-rear direction of the case 1, the driving plate 611 can drive the first support arm 51 to rotate in the forward or reverse direction about the hinge shaft thereof. In this process, the first support arm 51 slides in the limiting block 618, and the limiting block 618 can rotate relative to the mounting box 4, so that the height of one end of the first support arm 51 connected with the layer frame 3 changes, and the layer frame 3 is driven to lift.

In the rotation process of the first support arm 51, the gravity of the layer frame 3 can be transferred to the driving plate 611 and the limiting block 618 in a dispersed manner, so that the layer frame 3 can be supported on the first support arm 51 more stably, the lifting of the layer frame 3 can be controlled more stably, and the bearing capacity of the layer frame 3 can be improved further.

Based on the technical scheme, the embodiment of the invention has at least the following advantages and positive effects:

in the refrigerator of the embodiment of the invention, the driving bracket 61, the first supporting arm 51 and the layer frame 3 are matched, and the rotation amplitude of the supporting arm is further controlled by the back-and-forth movement of the driving bracket 61, so that the height of the layer frame 3 in the refrigerating compartment 11 is supported and adjusted, and the function of adjusting the lifting of the layer frame 3 is realized. Wherein, through the cooperation of drive support 61 and first support arm 51, the linear motion with drive support 61 converts the rotary motion of first support arm 51 into, finally converts the rotary motion of first support arm 51 into the elevating movement of layer frame 3, is favorable to first support arm 51 and drive support 61 to gradually disperse the atress to layer frame 3 to can easily, stably control layer frame 3 and go up and down, be favorable to improving user's convenience, be favorable to reducing the holistic cost of refrigerator.

While the invention has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A refrigerator, comprising:

the box body is internally provided with a refrigeration compartment;

the layer rack is arranged in the refrigerating compartment;

the first supporting arm is arranged below the layer frame; the first support arm is rotatably connected in the refrigeration compartment, and one end of the first support arm supports the bottom of the layer frame;

the driving bracket is movably arranged below the layer frame and can slide along the front-back direction of the box body; the driving bracket is connected with the first supporting arm;

when the driving support slides along the front-back direction of the box body, the driving support can drive the first supporting arm to rotate and drive the layer rack to lift;

the refrigerator further comprises two mounting boxes, and the two mounting boxes are respectively and fixedly arranged on the left side wall and the right side wall of the refrigeration compartment;

two ends of the layer rack are respectively erected on one mounting box;

the first support arm is arranged in the mounting box, and one end of the first support arm is rotatably connected to the inner wall of the mounting box;

the driving bracket is movably arranged in the mounting box;

the driving bracket comprises a driving plate extending along the front-back direction of the box body and a driving arm convexly arranged on the driving plate;

the driving plate is movably arranged in the mounting box and can slide in the mounting box along the front-back direction of the box body;

the driving arm is in sliding connection with the first supporting arm, and the first supporting arm is hinged to the inner wall of the mounting box;

when the driving plate slides along the front-back direction of the box body, the driving arm can drive the first supporting arm to rotate and drive the layer rack to lift;

the driving plate is provided with a rack extending along the front-back direction of the box body;

a gear assembly is arranged in the mounting box, and a handle is rotatably connected to the outer wall of the mounting box; the rotating end of the handle is in transmission connection with the gear assembly and is in meshed transmission connection with the rack through the gear assembly;

when the handle rotates forwards or reversely, the handle can drive the driving plate to slide in the front-back direction of the box body in the mounting box.

2. The refrigerator as claimed in claim 1, wherein the first support arm is provided in plurality and is arranged in parallel at intervals in front and rear; the driving arms are provided with a plurality of driving arms and are arranged in one-to-one correspondence with the first supporting arms.

3. The refrigerator as claimed in claim 1, wherein the first support arm is provided with a guide chute extending along an axial direction thereof;

the driving arm is convexly provided with a supporting shaft, and the supporting shaft is connected in the guide chute in a sliding way;

when the driving plate slides along the front-back direction of the box body, the supporting shaft slides in the guide sliding groove and drives the first supporting arm to rotate.

4. The refrigerator of claim 1, wherein the driving bracket further comprises a connecting sleeve rotatably connected to the driving arm, and the connecting sleeve is slidably sleeved on the first supporting arm;

when the driving plate slides along the front-back direction of the box body, the connecting sleeve slides on the first supporting arm and drives the first supporting arm to rotate.

5. The refrigerator of claim 1, further comprising a second support arm and a linkage shaft;

the second supporting arm is arranged in the other mounting box; the second support arm is opposite to the first support arm and is arranged in parallel, one end of the second support arm is hinged to the inner wall of the mounting box, and the other end of the second support arm supports the bottom of the layer frame;

the linkage shaft is arranged between the first support arm and the second support arm, and two ends of the linkage shaft are respectively connected with the hinged ends of the first support arm and the second support arm;

the first supporting arm drives the second supporting arm to synchronously rotate through the linkage shaft.

6. The refrigerator of claim 5, further comprising a third support arm; the third supporting arm is arranged in the mounting box and is arranged in parallel and at intervals with the second supporting arm in front-back direction; one end of the third supporting arm is hinged to the inner wall of the mounting box, and the other end of the third supporting arm supports the bottom of the layer frame;

a connecting rod is arranged between the second supporting arm and the third supporting arm, and two ends of the connecting rod are respectively hinged with the second supporting arm and the third supporting arm;

the second supporting arm drives the third supporting arm to synchronously rotate through the connecting rod.

7. A refrigerator, comprising:

the box body is internally provided with a refrigeration compartment;

the layer rack is arranged in the refrigerating compartment;

the two mounting boxes are arranged and are respectively fixed on the left side wall and the right side wall of the refrigeration compartment;

wherein, two ends of the layer rack are respectively erected on one mounting box;

the driving bracket is movably arranged in the mounting box;

the driving bracket comprises a driving plate extending along the front-back direction of the box body; the driving plate is movably arranged in the mounting box and can slide in the mounting box along the front-back direction of the box body;

a limiting block is arranged in the mounting box and is rotatably connected to the inner wall of the mounting box;

one end of the first supporting arm is hinged to the driving plate, and the first supporting arm is slidably arranged on the limiting block in a penetrating mode;

when the driving plate slides along the front-back direction of the box body, the driving plate can drive the first supporting arm to rotate around the hinge shaft of the first supporting arm and slide relative to the limiting block so as to drive the layer rack to lift;