Three-section type folding shelf and refrigerator thereof

Abstract

The invention provides a three-section type folding shelf and a refrigerator thereof, and relates to the field of refrigerators, the three-section type folding shelf comprises a first partition plate, a second partition plate and a third partition plate, and every two adjacent partition plates are rotationally connected; the two connecting pieces are respectively used for hinging the first partition plate with the second partition plate and hinging the second partition plate with the third partition plate; the two supports are located on the two sides of the partition plate correspondingly, the two side walls of the end, away from the second partition plate, of the first partition plate are rotationally connected with the supports on the corresponding sides correspondingly, and supporting plates used for supporting the flattened first partition plate, the flattened second partition plate and the flattened third partition plate are arranged on the supports; the limiting structure comprises a first limiting piece arranged in the middle of the support and a second limiting piece arranged at the rear end of the support, and the three-section type folding shelf can be in a semi-folding state or a full-folding state through the combined action of the first limiting piece and the second limiting piece. The storage device has the effect that the storage requirement of larger articles can be met.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a three-section folding shelf and a refrigerator thereof. Background Art

[0002] With the upgrading of refrigerators, people have put forward higher and higher requirements for the use of the space inside the refrigerator. To increase the convenience of storage and achieve hierarchical storage of food ingredients, most existing refrigerators are provided with shelves inside the cabinet. Different items can be placed on the shelves, and the shelves divide the interior of the refrigerator into different spaces, facilitating users to pick up and place items. However, the integral shelf can only meet a small adjustment in the height direction. To improve the flexibility of storage, some refrigerators are also provided with a two-section folding shelf. After folding, the front space can meet the storage of some tall items, improving the user experience of using the refrigerator shelf.

[0003] The existing two-section folding shelf usually adopts a folding method of moving the front shelf to the lower part of the rear shelf. For example, the Chinese patent with the application number 201220216741.X in the related art proposes a folding shelf for a refrigerator. The folding shelf includes a front shelf board and a rear shelf board detachably connected to the inner wall of the cabinet liner. The rear shelf board is provided with a lapping groove at one end facing the refrigerator door and guiding storage grooves parallel to the two side edges on the left and right at the bottom. The lapping groove is used for lapping the rear end part of the front shelf board when the shelf is in the unfolded state, and the guiding storage groove is used for storing the front shelf board under the rear shelf board when the shelf is in the folded state. When the shelf is in the unfolded state, the rear end part of the front shelf board laps in the lapping groove of the rear shelf board, and the front end part is clamped with a fixing block installed on the cabinet liner wall.

[0004] This kind of stacking folding structure method generally has a folding amplitude less than half of the total depth of the shelf, resulting in limited use scenarios of the folding shelf. At the same time, the stacking structure method will also cause problems such as relatively large sizes of the two side support seats, complex structure, and lack of simplicity in vision. Summary of the Invention

[0005] In order to overcome the above technical problems of the existing technology, the present application provides a three-section folding shelf and a refrigerator thereof.

[0006] In a first aspect, a three-section folding shelf provided by the present application adopts the following technical solutions: A three-section folding shelf includes three partition boards, namely a first partition board, a second partition board, and a third partition board in sequence, and adjacent two of the partition boards are rotatably connected; two connecting pieces, which are respectively used for hingedly connecting the first partition board and the second partition board, and hingedly connecting the second partition board and the third partition board. Through the two connecting pieces, the three-section folding shelf can be folded; There are two brackets, which are respectively located on both sides of the partition board. Both side walls at one end of the first partition board away from the second partition board are respectively rotatably connected to the corresponding bracket on that side. A support plate for supporting the flattened first partition board, second partition board, and third partition board is provided on the bracket; and A limiting structure is provided on the bracket. The limiting structure includes a first limiting member provided in the middle of the bracket and a second limiting member provided at the rear end of the bracket. Through the combined action of the first limiting member and the second limiting member, the three-section folding shelf can be in a semi-folded state or a fully-folded state.

[0007] By adopting the above technical solution, two connecting members sequentially rotatably connect the first partition board, the second partition board, and the third partition board to form a three-section folding shelf. The brackets and the support plate are used to support the three-section folding shelf. When the three-section folding shelf needs to be semi-folded, the ends of the first partition board and the second partition board that are close to each other can be driven to tilt upward between the two brackets. The first partition board and the second partition board rotate relative to each other, and the third partition board moves toward the first partition board. At this time, under the combined action of the first limiting member and the second limiting member, the first partition board and the second partition board are obliquely erected between the two brackets, and the third partition board is horizontally placed on the support plate, thereby realizing the semi-folding treatment of the three-section folding shelf. When the three-section folding shelf needs to be fully folded, the ends of the first partition board and the second partition board that are close to each other can be driven to tilt upward between the two brackets first, and the first partition board and the second partition board rotate relative to each other. Then, the end of the third partition board away from the second partition board is driven to rotate upward, so that the third partition board is folded and obliquely leaned against one side of the second partition board. At this time, under the combined action of the first limiting member and the second limiting member, the first partition board, the second partition board, and the third partition board are all stably folded and erected between the two brackets, thereby realizing the full-folding treatment of the three-section folding shelf.

[0008] Furthermore, the connecting member includes a clamping portion fixedly connected to the edge of the partition board and a connecting portion for connecting two adjacent clamping portions. The connecting portion is soft, so that the partition boards on both sides of the connecting member can rotate relative to each other and fold.

[0009] By adopting the above technical solution, the two clamping portions are respectively fixedly connected to the corresponding partition boards, and the two clamping portions are rotatably connected by a soft connecting portion, so that two adjacent partition boards can not only form a whole under the connection action of the connecting member, but also be driven to rotate relative to each other according to needs, thereby realizing the flipping and folding treatment of two adjacent partition boards.

[0010] Furthermore, the connecting portion is located at the edge of two adjacent clamping portions. Among them, the connecting portion in the connecting member between the first partition and the second partition is located below the partition, and the connecting portion in the connecting member between the second partition and the third partition is located above the partition.

[0011] By adopting the above technical solution, when folding the first partition and the second partition, the ends of the first partition and the second partition that are close to each other can be tilted upward. Since the connecting portion on the connecting member between the first partition and the second partition is located below the partition, it is highly possible to complete the folding process between the first partition and the second partition. When folding the second partition and the third partition, the end of the third partition far from the second partition can be turned upward. Since the connecting portion on the connecting member between the second partition and the third partition is located above the partition, the third partition can be turned over and stably leaned against the second partition.

[0012] Furthermore, the first limiting member is arranged as a limiting hook fixed in the middle of the support plate. The notch formed between the limiting hook and the support plate faces the direction of the first partition. A hook that is engaged and adapted with the limiting hook is arranged at the bottom edge of the third partition.

[0013] By adopting the above technical solution, when the ends of the first partition and the second partition that are close to each other are tilted upward, and the third partition moves toward the first partition and is horizontally supported between the two support plates, at this time, the limiting hook and the hook are engaged with each other, so that the third partition is not easy to slide away from the first partition, ensuring that the semi-folded state formed by the first partition, the second partition, and the third partition is relatively stable.

[0014] Furthermore, sliding blocks are arranged on both sides of the bottoms of the second partition and the third partition. The sliding blocks are slidably abutted against the support plate, and the distance from one end of the sliding block to the partition is not less than the distance from the top end of the limiting hook to the support plate.

[0015] By adopting the above technical solution, the second partition and the third partition are both slidably supported on the support plate by the sliding blocks. Since the distance from one end of the sliding block to the partition is not less than the distance from the top end of the limiting hook to the support plate, the arrangement of the limiting hook on the support plate will not affect the sliding and turning of the second partition and the third partition, ensuring that the three-section folding shelf is folded more smoothly.

[0016] Furthermore, a top plate is fixedly arranged in parallel above the support plate on the bracket. The top plate and the support plate jointly form a sliding groove for the sliding block to slide on the side wall of the bracket. The edge of the top plate is attached to the edge of the partition.

[0017] By adopting the above technical solution, the top plate and the support plate jointly form a chute on the side wall of the bracket for the slider to slide, so that during the semi-folding process of the three-section folding shelf, the third partition can slide smoothly on the support plate. At the same time, the edge of the top plate fits with the edge of the partition, so that when the three-section folding shelf is unfolded and laid flat, it can be combined with the brackets on both sides to form an integral body, preventing items from falling and getting stuck between the partition and the bracket.

[0018] Furthermore, a semi-circular shaft is fixed to the side of the first partition, and a plug-in groove for the shaft to rotate and insert is provided at the end of the bracket. The second limiting member includes a limiting plate fixed to the rear end of the bracket and a bump provided on the lower surface of the top plate. The limiting plate is connected between the support plate and the top plate, and the limiting plate rotatably abuts against the circumferential side of the shaft. When the first partition is turned upwards until the side wall of the opening side of the shaft rotates to abut against the bump, the rotation of the first partition is restricted. The second partition is folded in front of the first partition and is arranged at an acute angle with the first partition. At this time, the hook is clamped with the limiting hook.

[0019] By adopting the above technical solution, the semi-circular shaft drives the first partition to rotate in the plug-in groove jointly formed by the bracket, the support plate and the limiting plate, so that the first partition is turned upwards. When the side wall of the opening side of the shaft rotates to abut against the bump, it means that the first partition has been turned to the maximum angle. At this time, only need to drive the second partition to rotate relative to the first partition until the hook is clamped with the limiting hook. At this time, a stable triangular structure is formed among the first partition, the second partition and the support plate, ensuring that the folding state of the first partition and the second partition is relatively stable.

[0020] Furthermore, a groove is provided on the top plate, and bumps are fixed at the edges of the sides where the first partition and the second partition are close to each other. When the three-section folding shelf is in a flattened state, the two bumps are jointly inserted into the groove and are adapted to the groove.

[0021] By adopting the above technical solution, when the three-section folding shelf is in a flattened state, the two bumps are jointly inserted into the corresponding grooves. Under the clamping action of the bumps and the grooves, the first partition, the second partition and the third partition can all be stably laid flat between the two brackets.

[0022] Furthermore, a limiting groove communicating with the chute is provided at the front end of the bracket, and a stepped portion is formed between the chute and the limiting groove. When the three-section folding shelf is in a flattened state, the hook abuts against the stepped portion.

[0023] By adopting the above technical solution, when the three-section folding shelf is in the flattened state, the hook abuts against the stepped portion. Under the abutting action between the hook and the stepped portion, the first partition board, the second partition board and the third partition board can all be stably laid flat between the two brackets.

[0024] In a second aspect, a refrigerator provided by the present application includes a box body and a three-section folding shelf, and the three-section folding shelf is arranged in the box body.

[0025] By adopting the above technical solution, the three-section folding shelf can realize the functions of unfolding, semi-folding and full-folding of the folding shelf. At the same time, in the semi-folding state, the folding amplitude is greater than half of the total depth of the shelf, so that the refrigerator can meet the storage of larger items.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The three partition boards of the three-section folding shelf are connected by a connecting piece with a soft connecting portion arranged in the middle, so that the partition boards can rotate around the soft connecting piece. The setting of the soft connecting piece simplifies the rotating structure of the single partition board and has a lower cost; 2. The three single partition boards are folded upward around the brackets and the soft connecting piece, which simplifies the structure of the brackets, reduces the size of the brackets, and has a more concise visual effect; 3. The three-section folding shelf can realize the functions of unfolding, semi-folding and full-folding of the folding shelf. At the same time, in the semi-folding state, the folding amplitude is greater than half of the total depth of the shelf, and it can meet the storage of larger items. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 It is a schematic top view of the three-section folding shelf after being flattened in an embodiment of the present application.

[0030] Figure 3 It is a schematic bottom view of the three-section folding shelf after being flattened in an embodiment of the present application.

[0031] Figure 4 It is an exploded view of the first partition board, the second partition board, the third partition board and the bracket in an embodiment of the present application.

[0032] Figure 5It is a schematic structural diagram of the connecting piece in the embodiment of the present application.

[0033] Figure 6 It is a schematic structural diagram of the three-section folding shelf after semi-folding in the embodiment of the present application.

[0034] Figure 7 It is a schematic structural diagram of the three-section folding shelf after full folding in the embodiment of the present application.

[0035] Reference signs: 1, first partition; 2, second partition; 3, third partition; 4, bracket; 5, support plate; 6, connecting piece; 61, clamping part; 62, connecting part; 7, limiting hook; 8, hook; 9, slider; 10, limiting plate; 11, bump; 12, top plate; 13, chute; 14, groove; 15, convex block; 16, box body; 17, stepped part; 18, rotating shaft; 19, insertion slot. Detailed implementation manners

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] The embodiment of the present application discloses a three-section folding shelf and a refrigerator thereof. Refer to Figure 1 , the refrigerator includes a box body 16 and a three-section folding shelf. A storage compartment is formed inside the box body 16, and the three-section folding shelf is detachably installed in the storage compartment inside the box body 16.

[0038] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, The three - stage folding shelf includes three partitions, two connectors 6, two brackets 4 and a limiting structure. The two brackets 4 are respectively horizontally and fixedly installed at equal heights on the two side walls of the box body 16. On the side walls of the two brackets 4 close to each other, there are integrally formed support plates 5. The three partitions are all movably arranged between the two brackets 4. The three partitions are successively the first partition 1, the second partition 2 and the third partition 3. The first partition is located at the innermost side of the box body 16, and the third partition 3 is located at the outermost side of the box body 16. The two connectors 6 are respectively located between the first partition 1 and the second partition, and between the second partition and the third partition 3, and are used to rotatably connect adjacent two partitions, so that when the three partitions are laid flat on the support plates 5 of the brackets 4, the three partitions are in the same plane and form a whole. When folding, the three partitions can rotate on the support plates 5, so that the three partitions can rotate and fold with each other. Considering the convenience of using this refrigerator, the limiting structure includes a first limiting member arranged in the middle of the bracket 4 and a second limiting member arranged at the rear end of the bracket 4. Through the combined action of the first limiting member and the second limiting member, the three - stage folding shelf can present a semi - folded state or a fully - folded state according to the storage needs.

[0039] Considering the convenience of installing the three partitions and the convenience of folding the three - stage folding shelf, referring to Figure 2 、 Figure 3 、 Figure 4 and Figure 6 , on both side walls at the rear end of the first partition 1, there are perpendicularly fixed semi - arc - shaped rotating shafts 18. The tail ends of the brackets 4 are provided with insertion slots 19 for the rotating shafts 18 to rotatably insert. To prevent the rotating shafts 18 from disengaging from the insertion slots 19, on the brackets 4, above the support plates 5, there is a horizontally fixed top plate 12. The edge of the top plate 12 fits with the edge of the partition. The second limiting member includes a limiting plate 10 fixed at the rear end of the bracket 4 and a convex point 11 arranged on the lower surface of the top plate 12. The limiting plate 10 is connected between the support plate 5 and the top plate 12, so that the rotating shafts 18 are stably rotatably connected to the brackets 4 under the combined action of the top plate 12, the limiting plate 10, the support plate 5 and the side walls of the insertion slots 19, and the circumferential side of the rotating shafts 18 is in rotational contact with the limiting plate 10, so that when the rotating shafts 18 drive the first partition 1 to rotate, the first partition 1 is not likely to shake. Since the rotating shafts 18 are semi - arc - shaped and the convex points 11 are arranged on the lower surface of the top plate 12, when the rotating shafts 18 are inserted into the insertion slots 19, part of the convex points 11 extends into the rotating shafts 18. As the first partition 1 rotates upward, the first partition 1 drives the rotating shafts 18 to rotate until the side wall of the opening side of the rotating shafts 18 rotates to abut against the convex points 11, and the upward rotation of the first partition 1 is restricted. At this time, the first partition 1 has rotated upward to the maximum inclination angle between the two brackets 4.

[0040] After the first partition 1 rotates upward to the maximum angle, in order to enable the second partition to be stably folded in front of the first partition 1, referring to Figure 4, Figure 5 and Figure 6 , the connecting member 6 includes a clamping portion 61 fixedly connected to the edge of the partition and a connecting portion 62 for connecting two adjacent clamping portions 61. The clamping portion 61 is arranged to be the same length as the partition, and the cross-section of the clamping portion 61 is C-shaped, capable of stably covering and fixing to the edge of the partition. The connecting portion 62 is made of a soft rubber strip, enabling the partitions on both sides of the connecting member 6 to rotate and fold relative to each other. Considering the integrity after the connection of two adjacent partitions and the convenience during folding, the connecting portion 62 is located at the edge of two adjacent clamping portions 61. Among them, the connecting portion 62 in the connecting member 6 between the first partition 1 and the second partition is located below the partition, and the connecting portion 62 in the connecting member 6 between the second partition and the third partition 3 is located above the partition. When the first partition 1 has been flipped upward to the maximum inclination angle between the two brackets 4, one end of the second partition close to the first partition 1 is lifted upward under the drive of the first partition 1. At this time, under the connection of the two connecting members 6, the second partition can rotate relative to the first partition 1 and the third partition 3. The second partition is folded in front of the first partition 1 and forms an acute angle with the first partition 1, so that the first partition 1, the second partition and the support plate 5 jointly form a stable triangular structure.

[0041] After the second partition is folded in front of the first partition 1, the third partition 3 can be in two states, one is the flipped state and the other is the laid-flat state. Referring to Figure 6 and Figure 7 , when the first partition 1 and the second partition are flipped and folded, and the third partition 3 is horizontally supported between the two brackets 4, the three-section folding shelf is in a semi-folded state at this time. When the first partition 1 and the second partition are flipped and folded, and the third partition 3 is flipped and leans against the side of the second partition away from the first partition 1, the three-section folding shelf is in a fully folded state at this time.

[0042] To enable the three-section folding shelf to stably remain in the semi-folded state, referring to Figure 3 , Figure 4 and Figure 6 , the first limiting member is set as a limiting hook 7 fixed in the middle of the support plate 5. The notch formed between the limiting hook 7 and the support plate 5 faces the direction of the first partition 1. A hook 8 that is engaged and adapted with the limiting hook 7 is provided at the bottom edge of the third partition 3. When the first partition 1 and the second partition are flipped and folded, and the third partition 3 is horizontally supported between the two brackets 4, the hook 8 is engaged with the limiting hook 7, restricting the sliding of the third partition 3 in the direction away from the first partition 1, ensuring that the three-section folding shelf can stably remain in the semi-folded state.

[0043] Considering that the limiting hook 7 is provided on the support plate 5, to avoid the limiting hook 7 affecting the horizontal movement of the third partition 3 on the support plate 5, referring to Figure 3 , Figure 4 andFigure 6 On both sides of the bottom of the second partition and the third partition 3, sliders 9 are provided. The top plate 12 and the support plate 5 together form a chute 13 on the side wall of the bracket 4 for the sliders 9 to slide. The sliders 9 slide and abut on the support plate 5, and the bottom of the sliders 9 is set to be arc-shaped. At the same time, the distance from one end of the slider 9 to the partition is not less than the distance from the top end of the limit hook 7 to the support plate 5, so as to avoid scratching of the partition and the limit hook 7 when the three-section folding shelf is laid flat between the two brackets 4.

[0044] When the three-section folding shelf is in the laid-flat state, since the connecting part 62 of the connecting piece 6 is soft and has a certain deformation ability, in order to avoid the partition being easily displaced along the length direction of the bracket 4 after being laid flat, resulting in damage to the connecting part 62 of the connecting piece 6, referring to Figure 2 、 Figure 4 、 Figure 6 and Figure 7 On the top plate 12, a groove 14 is formed. On the edges of the sides where the first partition 1 and the second partition are close to each other, bumps 15 are fixed. When the three-section folding shelf is in the flattened state, the two bumps 15 are inserted into the groove 14 together and are adapted to the groove 14. Under the joint clamping action of the bump 15 and the groove 14, the second partition is not easily moved away from the first partition 1, effectively avoiding damage to the connecting part 62 on the connecting piece 6 between the first partition 1 and the second partition. At the front end of the bracket 4, a limit groove communicating with the chute 13 is provided, and a stepped portion 17 is formed between the chute 13 and the limit groove. When the three-section folding shelf is in the flattened state, the hook 8 abuts on the stepped portion 17. Under the joint abutting action of the hook 8 and the stepped portion 17, the third partition 3 is not easily moved away from the second partition, effectively avoiding damage to the connecting part 62 on the connecting piece 6 between the second partition and the third partition 3.

[0045] The implementation principle of a three-section folding shelf and its refrigerator in the embodiment of the present application is as follows: During installation, the first partition 1, the second partition, and the third partition 3 can be first connected into a whole through two connecting pieces 6, and then the rotating shafts 18 on both sides of the first partition 1 are respectively connected to the two brackets 4, and finally the two brackets 4 are installed at the same height in the box body 16 of the refrigerator.

[0046] When the three-section folding shelf is in the flattened state, the first partition 1, the second partition, and the third partition 3 are all horizontally placed on the support plate 5, and the upper surfaces of the three partitions are coplanar and fit with the top surface of the top plate 12. At the same time, the bumps 15 on the second partition and the third partition 3 are inserted into the groove 14 on the top plate 12 together, and the hook 8 on the third partition 3 abuts on the stepped portion 17.

[0047] When the three-section folding shelf needs to be semi-folded, the ends of the first partition 1 and the second partition that are close to each other can be driven to tilt upward between the two brackets 4, the first partition 1 rotates relative to the second partition, and the third partition 3 moves toward the first partition 1 until the hook 8 is engaged with the limit hook 7. At this time, the sliding of the third partition 3 in the direction away from the first partition 1 is restricted, and the three-section folding shelf can be stably maintained in the semi-folded state.

[0048] When the three-section folding shelf needs to be fully folded, first, the ends of the first partition 1 and the second partition that are close to each other can be driven to tilt upward between the two brackets 4, and the first partition 1 rotates relative to the second partition. Then, the end of the third partition 3 away from the second partition is driven to rotate upward, so that the third partition 3 is folded and leans against one side of the second partition, thereby realizing the full folding of the three-section folding shelf.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A three-stage folding shelf, characterized in that, Including Three partition boards, namely the first partition board, the second partition board, and the third partition board in sequence, and adjacent two of the partition boards are rotatably connected; Connectors, there are two of them, respectively used to hinge-connect the first partition board and the second partition board, and hinge-connect the second partition board and the third partition board. Through the two connectors, the three-section folding shelf can be folded; Supports, there are two of them, located on both sides of the partition board respectively, and both side walls at one end of the first partition board away from the second partition board are respectively rotatably connected to the corresponding side support. A support plate for supporting the flattened first partition board, second partition board, and third partition board is provided on the support; And A limiting structure, which is provided on the support. The limiting structure includes a first limiting member provided in the middle of the support and a second limiting member provided at the rear end of the support. Through the combined action of the first limiting member and the second limiting member, the three-section folding shelf can be in a semi-folded state or a fully folded state.

2. The three-stage folding shelf according to claim 1, characterized in that, The connector includes a clamping portion fixedly connected to the edge of the partition board and a connecting portion for connecting two adjacent clamping portions. The connecting portion is soft, so that the partition boards on both sides of the connector can rotate relative to each other and fold.

3. The three-stage folding shelf according to claim 2, wherein The connecting portion is located at the edge of two adjacent clamping portions. Among them, the connecting portion in the connector between the first partition board and the second partition board is located below the partition board, and the connecting portion in the connector between the second partition board and the third partition board is located above the partition board.

4. A three-stage folding shelf according to claim 1, characterized in that, The first limiting member is set as a limiting hook fixed in the middle of the support plate. The notch formed between the limiting hook and the support plate faces the direction of the first partition board. A hook that is engaged and adapted with the limiting hook is provided at the bottom edge of the third partition board.

5. The three-stage folding shelf according to claim 4, characterized in that, Sliders are provided on both sides of the bottom of the second partition board and the third partition board. The sliders slide and abut on the support plate, and the distance from one end of the slider to the partition board is not less than the distance from the top end of the limiting hook to the support plate.

6. The three-stage folding shelf according to claim 5, characterized in that, A top plate is fixedly provided in parallel above the support plate on the support. The top plate and the support plate jointly form a chute on the side wall of the support for the slider to slide. The edge of the top plate fits with the edge of the partition board.

7. The one-piece three-stage folding shelf according to claim 6, wherein, A semi-circular shaft is fixed to the side of the first partition board. A plug-in groove for the shaft to rotate and insert is opened at the tail end of the support. The second limiting member includes a limiting plate fixed to the rear end of the support and a convex point provided on the lower surface of the top plate. The limiting plate is connected between the support plate and the top plate. The limiting plate rotates and abuts on the periphery of the shaft. When the first partition board is turned upwards until the side wall of the opening side of the shaft rotates to abut on the convex point, the rotation of the first partition board is restricted. The second partition board is folded in front of the first partition board and forms an acute angle with the first partition board. At this time, the hook is engaged with the limiting hook.

8. A three-stage folding shelf according to claim 6, characterized in that, A groove is formed on the top plate, and bumps are fixed at the edges of the mutually adjacent sides of the first partition plate and the second partition plate. When the three-section folding shelf is in a flattened state, the two bumps are jointly inserted into the groove and are inserted and adapted to the groove.

9. The three-stage folding shelf according to claim 6, characterized in that, A limiting groove communicating with the sliding groove is arranged at the front end of the bracket, and a stepped portion is formed between the sliding groove and the limiting groove. When the three-section folding shelf is in a flattened state, the hook abuts against the stepped portion.

10. A refrigerator, characterized in that, The refrigerator includes a box body and the three-section folding shelf according to any one of claims 1-9, and the three-section folding shelf is arranged in the box body.

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