Lifting shelf and refrigerator

Abstract

The utility model discloses a lifting shelf and a refrigerator, and relates to the technical field of refrigerators, the lifting shelf comprises a mounting main body, a first shelf and a rotation driving part, the mounting main body is provided with a first rope winding part, a traction rope is wound on the first rope winding part, and the traction rope is provided with a first end and a second end in the extension direction of the traction rope; the first shelf is connected with the first end of the traction rope and movably arranged on the mounting main body in the first direction, the first shelf is provided with a first side and a second side which are located in the first direction, and the first side is arranged towards the first rope winding part and used for placing articles; and the rotary driving part is rotationally arranged relative to the mounting main body, is located on the second side of the first shelf, and is in driving connection with the second end of the traction rope, so that the first shelf is close to or far away from the first rope winding part. According to the technical scheme, the problem that operation is difficult when a user operates a driving knob of a traditional lifting shelf to control the shelf to ascend and descend is solved.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a liftable shelf and a refrigerator. Background Technology

[0002] In the field of refrigerator technology, in order to provide users with more diverse storage solutions, refrigerators usually have lift-up shelves installed in the inner liner. Users control the shelves to rise and fall by operating a drive knob, thereby changing the spatial distribution in the inner liner. However, users generally encounter difficulties in operating the drive knob to control the shelves to rise and fall. Utility Model Content

[0003] The main purpose of this utility model is to propose a lifting shelf and refrigerator, which aims to improve the problem that users often encounter difficulties in operating traditional lifting shelves by using the drive knob to control the lifting of the shelf.

[0004] To achieve the above objectives, the lifting shelf proposed in this utility model includes:

[0005] The mounting body is provided with a first rope winding part, on which a traction rope is wound, and the traction rope has a first end and a second end in its extending direction.

[0006] A first shelf, connected to a first end of the traction rope, and movably disposed on the mounting body along a first direction, the first shelf having a first side and a second side in the first direction, the first side being disposed towards the first rope winding portion, and used to hold an item; and

[0007] A rotary drive unit is rotatably disposed relative to the mounting body and located on the second side of the first shelf. The rotary drive unit is driven to the second end of the traction rope so that the first shelf moves closer to or further away from the first rope winding part.

[0008] In one embodiment, the lifting shelf further includes a second shelf, which is opposite to the first shelf in the first direction and located on the second side of the first shelf, and the second shelf has mounting holes.

[0009] The rotary drive unit has a knob and a drive shaft connected to each other. The knob is located on the side of the second shelf near the first shelf and rotates along the axis of the first direction. The drive shaft extends into the other side of the second shelf through the mounting hole and drives the second end connected to the traction rope.

[0010] In one embodiment, the lifting shelf further includes a second shelf, which is opposite to the first shelf in the first direction and located on the second side of the first shelf, and the second shelf has mounting holes.

[0011] The rotary drive unit has a knob and a drive shaft connected to each other. The knob is located on the side of the second shelf near the first shelf, and the drive shaft extends into the other side of the second shelf through the mounting hole and drives the second end connected to the traction rope.

[0012] In one embodiment, the knob is movable relative to the drive shaft in the first direction to have an operating position protruding from the mounting hole and a hidden position retracted into the mounting hole.

[0013] In one embodiment, in the concealed position, the knob is flush with the surface of the second shelf; and / or,

[0014] The second shelf is provided with a damping part that abuts against the knob radially; and / or,

[0015] The knob is provided with a lifting part.

[0016] In one embodiment, the second shelf is provided with a second rope winding portion, which corresponds to the first rope winding portion in the first direction;

[0017] The traction rope is arranged around the second rope winding section.

[0018] In one embodiment, the second shelf extends along a second direction;

[0019] The second shelf is provided with a connecting part that is movable along the second direction, the connecting part having a travel distance that moves towards and away from the first rope winding part;

[0020] The drive shaft is driven to the adapter, and the adapter is connected to the second end of the traction rope.

[0021] In one embodiment, the first shelf extends along a third direction, wherein the second direction is perpendicular to the third direction.

[0022] The first winding section and the traction rope form a traction group in a one-to-one correspondence. Two traction groups are provided, and they are respectively set at both ends of the first shelf in the third direction. The second ends of the two traction ropes are connected to the adapter.

[0023] In one embodiment, a third rope winding portion is provided on the second shelf corresponding to the traction rope, and the third rope winding portion corresponds to the transition portion in the second direction;

[0024] The traction rope is arranged to wrap around the third rope winding section.

[0025] In one embodiment, the lifting shelf further includes a screw and a sleeve that cooperate with each other. The screw is rotatably mounted on the second shelf along the axis of the second direction, and the sleeve is anti-rotational relative to the second shelf. The sleeve includes the transition portion, and the drive shaft is drivably connected to the screw; and / or,

[0026] The lifting shelf also includes a first bevel gear and a second bevel gear that mesh with each other. The first bevel gear is mounted on the drive shaft, and the second bevel gear is rotatably disposed on the second shelf along the axis of the second direction. The second bevel gear drives the connection to the adapter.

[0027] In one embodiment, the mounting body includes a guide rail corresponding to the first rope winding portion, the guide rail extending along the first direction;

[0028] The first shelf is provided with a slider, which is movably disposed on the guide rail along the first direction.

[0029] The refrigerator proposed in this utility model has an inner liner, in which the aforementioned lifting shelf is provided. The lifting shelf includes:

[0030] The mounting body is provided with a first rope winding part, on which a traction rope is wound, and the traction rope has a first end and a second end in its extending direction.

[0031] A first shelf, connected to a first end of the traction rope, and movably disposed on the mounting body along the first direction, the first shelf having a first side and a second side in the first direction, the first side being disposed towards the first rope winding portion, and used to hold an item; and

[0032] A rotary drive unit is rotatably disposed relative to the mounting body and located on the second side of the first shelf. The rotary drive unit is driven to the second end of the traction rope so that the first shelf moves closer to or further away from the first rope winding part.

[0033] In one embodiment, the inner liner of the box is provided with a front opening, and the inner liner of the box has a first sidewall located at the rear.

[0034] The first direction is set to the up-down direction, and the mounting body is disposed on the first side wall.

[0035] In one embodiment, the inner liner of the box has second sidewalls on the left and right sides, and the first rope winding portion and the traction rope are disposed at the corners corresponding to the first sidewalls and the second sidewalls; and / or,

[0036] The inner liner of the box has a bottom wall on the lower side. The lifting shelf also includes a second shelf, which is disposed on the bottom wall and has mounting holes. The rotary drive unit has a knob and a drive shaft connected to each other. The knob is disposed on the upper side of the second shelf and rotates along the axis of the vertical direction. The drive shaft extends into the lower side of the second shelf through the mounting holes and drives the second end connected to the traction rope.

[0037] The technical solution provided by this utility model allows the user to control the lifting and lowering of the first shelf by rotating the rotary drive unit, which in turn moves the first end of the traction rope closer to or further away from the first rope winding part. Based on this, the rotary drive unit is located on the second side of the first shelf. After the lifting shelf is installed, the rotary drive unit is located below the first shelf. When the user operates the rotary drive unit, their arm only needs to be inserted under the first shelf, which is less likely to interfere with the first shelf. At the same time, the lifting height of the arm is low, which saves the user effort and greatly reduces the difficulty of operation. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0039] Figure 1 A three-dimensional structural diagram of the lifting shelf provided by this utility model;

[0040] Figure 2 for Figure 1 Exploded view of the central lifting shelf;

[0041] Figure 3 for Figure 2 A three-dimensional structural diagram of structure A in the middle;

[0042] Figure 4 for Figure 3 A top view of the structure of the middle section A;

[0043] Figure 5 for Figure 4 Schematic diagram of the structure of the mid-section BB;

[0044] Figure 6 for Figure 5 A magnified structural diagram of part C in the middle.

[0045] Explanation of icon numbers:

[0046] 100. Lifting shelf;

[0047] 1. Mounting body; 11. Guide rail; 2. Rope winding section; 21. First rope winding section; 22. Second rope winding section; 23. Third rope winding section; 3. Traction rope; 31. First end; 32. Second end; 4. First shelf; 41. Slider; 5. Second shelf; 51. Mounting hole; 52. Damping section; 6. Rotary drive section; 61. Knob; 62. Drive shaft; 63. Lifting section; 71. First bevel gear; 72. Second bevel gear; 81. Screw; 82. Screw sleeve; 82a. Adapter section;

[0048] X, first direction; Y, second direction; Z, third direction;

[0049] 200. Inner liner of the box; 210. First side wall; 220. Second side wall; 230. Bottom wall.

[0050] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0052] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0053] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0054] In the field of refrigerator technology, in order to provide users with more diverse storage solutions, refrigerators usually have lift shelves installed in the inner liner. Lift shelves usually include a drive knob and a shelf. By operating the drive knob, users can control the shelf to rise and fall, so that the space layout on the upper and lower sides of the shelf can be adjusted to meet the user's space storage needs.

[0055] However, the drive knobs for current height-adjustable shelves are generally located above the shelf. Given that refrigerators themselves are already quite tall, users (especially shorter users) usually need to raise their arms and reach over the shelf to operate the drive knob, which undoubtedly increases the difficulty of operation. Moreover, the shelf itself has a certain size, and when the shelf is raised to a higher position, it is easy for the shelf to interfere with the user's arm, thus failing to reach the desired lifting height.

[0056] In view of this, the present invention provides a lifting shelf with the knob located below the first shelf. When the lifting shelf is applied to the inner liner of a refrigerator, it can at least improve the problem that users often encounter difficulties in operating the traditional lifting shelf by using the drive knob to control the shelf's lifting and lowering.

[0057] It should be noted that the refrigerator is only one application scenario of the lifting shelf provided by this utility model. The lifting shelf can also be widely used in places such as kitchens and bathrooms where the spatial layout needs to be changed. This utility model will not elaborate on this aspect.

[0058] For a better understanding of the lifting shelf provided by this utility model, please refer to [link / reference]. Figures 1 to 3 ,in, Figure 1 A three-dimensional structural diagram of the lifting shelf provided by this utility model; Figure 2 for Figure 1 Exploded view of the central lifting shelf; Figure 3 for Figure 2 A three-dimensional structural diagram of structure A.

[0059] In one embodiment of this utility model, the lifting shelf 100 includes a mounting body 1, a first shelf 4, and a rotation drive unit 6. The mounting body 1 is provided with a first rope winding part 21, on which a traction rope 3 is wound. The traction rope 3 has a first end 31 and a second end 32 in its extension direction. The first shelf 4 is connected to the first end 31 of the traction rope 3 and is movably disposed on the mounting body 1 along the first direction X. The first shelf 4 has a first side and a second side in the first direction X. The first side is disposed facing the first rope winding part 21 and is used to place items. The rotation drive unit 6 is rotatably disposed relative to the mounting body 1 and is located on the second side of the first shelf 4. The rotation drive unit 6 is driven to connect to the second end 32 of the traction rope 3 so that the first shelf 4 moves closer to or away from the first rope winding part 21.

[0060] The "first shelf 4" is defined as being movable along the first direction X, and has a first side and a second side in the first direction X. The first side of the first shelf 4 is used to place items. It can be understood that after the lifting shelf 100 is installed, the first direction X is the up and down direction, the first side is the upper side of the first shelf 4, and the second side is the lower side of the first shelf 4. Therefore, the first rope winding part 21 is located on the upper side of the first shelf 4, and the rotation drive part 6 is located on the lower side of the first shelf 4. Both the first rope winding part 21 and the rotation drive part 6 should be outside the active stroke of the first shelf 4 to avoid interference with the first shelf 4.

[0061] The rotary drive unit 6 and the first shelf 4 are directly or indirectly connected to each other by a traction rope 3. Since the traction rope 3 is wound around the first rope winding part 21 which is at a high position, when the rotary drive unit 6 is operated to rotate, the second end 32 of the traction rope 3 can drive the first end 31 to move closer to or away from the first rope winding part 21, thereby controlling the lifting and lowering of the first shelf 4.

[0062] "The rotary drive unit 6 is driven to connect to the second end 32 of the traction rope 3". The "drive connection" can include various methods. For example, the second end 32 of the traction rope 3 can be directly connected to the rotary drive unit 6. The rotary drive unit 6 drives the second end 32 of the traction rope 3 to wind or unwind through its own rotation. This embodiment does not limit this. As long as the first end 31 of the guide rope can be moved closer to or away from the first winding part 21 through the drive connection between the rotary drive unit 6 and the second end 32 of the traction rope 3.

[0063] The first rope winding section 21 mentioned in this embodiment, as well as the second rope winding section 22 and the third rope winding section 23 mentioned below, can generally be classified as the same type of rope winding section 2. The three are only set in different positions and have different rope winding orientations, which are intended to change the extension direction of the traction rope 3. There are many structural types of the rope winding section 2. For example, the rope winding section 2 can be set as a fixed pulley and rotate with the extension and retraction of the traction rope 3, thereby achieving the effect of unloading force. Of course, the rope winding section 2 can also be a groove structure with a certain extension direction, so that the traction rope 3 can move smoothly in the groove structure. This embodiment does not limit the specific structure of the first rope winding section 21.

[0064] The technical solution provided by this utility model allows the user to rotate the rotary drive unit 6, which can move the first end 31 of the traction rope 3 closer to or further away from the first winding part 21, thereby controlling the lifting and lowering of the first shelf 4. Based on this, the rotary drive unit 6 is set on the second side of the first shelf 4. After the lifting shelf 100 is installed, the rotary drive unit 6 is located below the first shelf 4. When the user operates the rotary drive unit 6, his / her arm only needs to be inserted under the first shelf 4, which is less likely to interfere with the first shelf 4. At the same time, the lifting height of the arm is low, which saves the user more effort and greatly reduces the difficulty of operation.

[0065] Please see Figures 4 to 6 , Figure 4 for Figure 3 A top view of the structure of the middle section A; Figure 5 for Figure 4 Schematic diagram of the structure of the mid-section BB; Figure 6 for Figure 5 A magnified structural diagram of part C in the middle. In one embodiment, the lifting shelf 100 further includes a second shelf 5, which is opposite to the first shelf 4 in the first direction X and is located on the second side of the first shelf 4. The second shelf 5 has mounting holes 51.

[0066] The rotary drive unit 6 has a knob 61 and a drive shaft 62 connected to each other. The knob 61 is located on the side of the second shelf 5 near the first shelf 4 and rotates along the axis of the first direction X. The drive shaft 62 extends into the other side of the second shelf 5 through the mounting hole 51 and drives the second end 32 of the traction rope 3.

[0067] It should be noted that the rotary drive unit 6 has a knob 61 and a drive shaft 62 connected to each other, and the rotation axes of the knob 61 and the drive shaft 62 are the same; the second shelf 5 is opposite to the first shelf 4 in the first direction X, that is, the second shelf 5 is set facing the first direction X, and the mounting hole 51 formed therein is also provided through the first direction X; in this embodiment, the driving connection method between the drive shaft 62 and the second end 32 of the traction rope 3 is still not limited.

[0068] In the above technical solution, the second shelf 5 can also hold items. Based on this, the knob 61 of the rotary drive unit 6 is set on the side of the first shelf 4 near the second shelf 5 for easy user operation. The drive shaft 62 of the rotary drive unit 6 is set on the side of the first shelf 4 away from the second shelf 5. The drive connection structure between the drive shaft 62 and the second end 32 of the traction rope 3 is set on the side of the second shelf 5 away from the first shelf 4, which can hide the drive connection process and improve the aesthetics of the lifting shelf 100.

[0069] Further, please refer to Figure 5 and Figure 6 In one embodiment, the knob 61 is movable relative to the drive shaft 62 in a first direction X to have an operating position protruding from the mounting hole 51 and a hidden position retracted into the mounting hole 51.

[0070] It should be noted that there are multiple ways to achieve "the knob 61 is movable relative to the drive shaft 62 in the first direction X". For example, the knob 61 is provided with a socket extending in the first direction X, and the drive shaft 62 is formed with a pin that mates with the socket. The cross-section of the socket and the pin is irregular, so that the knob 61 is movable relative to the drive shaft 62 in the first direction X, and the knob 61 and the drive shaft 62 are respectively prevented from rotating.

[0071] In the above technical solution, the knob 61 is set to be movable relative to the drive shaft 62 in the first direction X, so that when the user does not need to operate the first shelf 4 to raise or lower, the knob 61 can be pressed to the hidden position to prevent the knob 61 from interfering with the placement of items on the second shelf 5. When the user needs to operate the first shelf 4 to raise or lower, the knob 61 can be pulled to the operating position for the user to operate.

[0072] Please see Figure 1 In one embodiment, in the concealed position, the knob 61 is flush with the surface of the second shelf 5.

[0073] It should be noted that "the surface of the knob 61 is flush with the surface of the second shelf 5" means that the surface of the knob 61 facing the first shelf 4 is in the same plane as the surface of the second shelf 5 facing the first shelf 4.

[0074] In the above technical solution, when the knob 61 is in the hidden position, it is flush with the surface of the second shelf 5, which not only further improves the aesthetics, but also prevents the knob 61 and the mounting hole 51 from interfering with the placement of items on the second shelf 5.

[0075] Please see Figure 3 and Figure 4 In another embodiment, the second shelf 5 is provided with a damping part 52, which abuts against the knob 61 radially.

[0076] It is understood that the axis of the knob 61 is the first direction X, and the damping part 52 abuts against it along the radial direction of the knob 61, which is intended to apply a certain amount of abutting force to the knob 61. The weight of the knob 61 itself is insufficient to offset the maximum static friction force generated by the abutting force. By controlling the magnitude of the abutting force, the user can easily operate the damping part 52 to move between the operating position and the hidden position.

[0077] In the above technical solution, the damping part 52 and the knob 61 are configured to provide a certain pressure in the radial direction of the knob 61, thereby preventing the knob 61 from moving to the hidden position under its own weight through the generated static friction.

[0078] Please see Figure 3 and Figure 4 In another embodiment, the knob 61 is provided with a lifting part 63.

[0079] The specific type of the lifting part 63 can be varied. For example, the lifting part 63 can be a pull ring, which can be hidden inside the knob 61 when not in use and can be pulled out when needed. Of course, the lifting part 63 can also be an irregular protruding structure, such as a cross-shaped, straight, or elliptical protruding structure, to facilitate the user's operation of the lifting part 63. This utility model embodiment does not limit this.

[0080] In the above technical solution, the lifting part 63 makes it easier for the user to pull the knob 61 out to the operating position when it is in the hidden position.

[0081] It should be noted that the above three parallel technical solutions, namely "in the hidden position, the knob 61 is flush with the surface of the second shelf 5", "the second shelf 5 is provided with a damping part 52, which abuts against the knob 61 radially", and "the knob 61 is provided with a lifting part 63", can be selected as one, two, or all at the same time. Obviously, setting them all at the same time is better.

[0082] Please see Figure 1 and Figure 2 In one embodiment, the second shelf 5 is provided with a second rope winding portion 22, which corresponds to the first rope winding portion 21 in the first direction X; the traction rope 3 is arranged to be wound around the second rope winding portion 22.

[0083] In the above technical solution, the traction rope 3 needs to undergo a change in extension direction to reach the drive shaft 62 of the rotation drive unit 6 from the first winding part 21. By setting the second winding part 22, the traction rope 3 above the second shelf 5 can be smoothly redirected and introduced to the bottom of the second shelf 5, which plays a protective role for the traction rope 3 and helps to reduce the resistance encountered by the drive shaft 62 in driving the traction rope 3.

[0084] Please see Figures 3 to 5 In one embodiment, the second shelf 5 extends along the second direction Y; the second shelf 5 is provided with a transition portion 82a that is movable along the second direction Y, the transition portion 82a having a travel distance to and from the first rope winding portion 21; wherein, the drive shaft 62 is driven to the transition portion 82a, and the transition portion 82a is connected to the second end 32 of the traction rope 3.

[0085] It should be noted that since the orientation of the second shelf 5 is the first direction X, and the extension direction of the second shelf 5 includes the second direction Y, it can be determined that the first direction X and the second direction Y are set at an angle. Under normal circumstances, the first direction X and the second direction Y are perpendicular to each other.

[0086] In the above technical solution, a transition part 82a is provided on the second shelf 5, so that the movable part can move linearly in the extension plane of the second shelf 5. This reduces the space occupied by the lifting shelf 100. Since the transition part 82a has a travel distance to and from the first rope winding part 21, the movable part can drive the first end 31 to move closer to and away from the first rope winding part 21 through the second end 32 of the traction rope 3. The linear drive has high efficiency and is conducive to realizing a larger travel distance of the first shelf 4.

[0087] Please see Figure 1 and Figure 2 In one embodiment, the first shelf 4 extends along the third direction Z, wherein the second direction Y is perpendicular to the third direction Z; the first rope winding part 21 and the traction rope 3 correspond to each other to form a traction group, and two traction groups are provided, which are respectively provided at both ends of the first shelf 4 in the third direction Z; the second ends 32 of the two traction ropes 3 are connected to the adapter part 82a.

[0088] It should be noted that the first shelf 4 extends along the third direction Z, therefore, the first shelf 4 has a larger size at least in the third direction Z.

[0089] In the above technical solution, two traction groups are set at both ends of the first shelf 4 in the third direction Z, and the second ends 32 of the two traction ropes 3 are simultaneously connected to the adapter 82a. Since the direction of movement of the adapter 82a (second direction Y) is perpendicular to the relative direction of the two traction groups (third direction Z), the two traction ropes 3 can be moved synchronously by the drive shaft 62 to drive the adapter 82a to move. This means that the first shelf 4 is simultaneously subjected to force at both ends in the third direction Z and can be raised and lowered synchronously, which improves the load-bearing capacity of the first shelf 4 and allows more items to be placed on the first shelf 4.

[0090] Please see Figure 3 and Figure 4In one embodiment, a third winding part 23 is provided on the second shelf 5 corresponding to the traction rope 3, and the third winding part 23 corresponds to the adapter part 82a in the second direction Y; the traction rope 3 is arranged to be wound around the third winding part 23.

[0091] It should be noted that since there are two traction ropes 3, "the second shelf 5 is provided with a third rope winding part 23 corresponding to the traction rope 3" means that the second shelf 5 is provided with a third rope winding part 23 for each of the two traction ropes 3, that is, two rope winding parts 2; "the third rope winding part 23 corresponds to the transition part 82a in the second direction Y" can be understood as the traction rope 3 that is wound through the third rope winding part 23 extends in the second direction Y.

[0092] In the above technical solution, the traction rope 3 reaches the transition part 82a from the third winding part 23. Since the third winding part 23 corresponds to the transition part 82a in the second direction Y, the extension direction of the traction rope 3 winding around the third winding part 23 coincides with the movement direction of the transition part 82a. The transition part 82a can more efficiently drive the traction rope 3 through its own movement. The connection point between the traction rope 3 and the transition part 82a only bears tensile stress, resulting in high connection reliability. The third winding part 23 also protects the traction rope 3, helping to reduce the resistance encountered by the drive shaft 62 in driving the traction rope 3.

[0093] Please see Figure 3 and Figure 4 In one embodiment, the lifting shelf 100 further includes a screw 81 and a screw sleeve 82 that cooperate with each other. The screw 81 is rotatably disposed on the second shelf 5 along the axis of the second direction Y. The screw sleeve 82 is anti-rotation disposed relative to the second shelf 5. The screw sleeve 82 includes a transition part 82a. The drive shaft 62 drives and connects to the screw 81.

[0094] It should be noted that there are multiple ways in which the drive shaft 62 drives the connecting screw 81. For example, the drive shaft 62 can be connected to the screw 81 through a universal joint or through a bevel gear assembly. This embodiment does not limit this.

[0095] In the above technical solution, the screw 81 and the screw sleeve 82 can both achieve the function of driving shaft 62 and adapter 82a, and achieve self-locking through the threaded engagement of screw 81 and screw sleeve 82 to prevent the first shelf 4 from falling. This allows the first shelf 4 to be automatically maintained at the current lifting height at all times, which is beneficial to improving the user's operating experience.

[0096] Please see Figure 5 and Figure 6In another embodiment, the lifting shelf 100 further includes a first bevel gear 71 and a second bevel gear 72 that mesh with each other. The first bevel gear 71 is mounted on the drive shaft 62, and the second bevel gear 72 is rotatably disposed on the second shelf 5 along the axis of the second direction Y. The second bevel gear 72 drives the connecting adapter 82a.

[0097] It should be noted that there are multiple ways in which the "second bevel gear 72 drives the connecting adapter 82a". For example, the second bevel gear 72 can drive the cylindrical gear to rotate by its own rotation. The cylindrical gear meshes with the rack, thereby driving the rack to move along the second direction Y. This embodiment does not limit this.

[0098] In the above technical solution, the meshing transmission of the first bevel gear 71 and the second bevel gear 72 can achieve the change of driving direction and withstand a high transmission torque. At the same time, the structure of the bevel gear meshing transmission is relatively compact and occupies less space in the lifting shelf 100. Moreover, by designing a suitable transmission ratio between the first bevel gear 71 and the second bevel gear 72, the purpose of labor-saving driving can be achieved, reducing the difficulty for users to operate the knob 61.

[0099] It should be noted that the two parallel technical solutions mentioned above, namely "the lifting shelf 100 further includes a screw 81 and a screw sleeve 82 that cooperate with each other, the screw 81 is rotatably mounted on the second shelf 5 along the axis of the second direction Y, and the screw sleeve 82 is anti-rotating relative to the second shelf 5, wherein the screw sleeve 82 includes a transition part 82a, and the drive shaft 62 drives and connects the screw 81" and "the lifting shelf 100 further includes a first bevel gear 71 and a second bevel gear 72 that mesh with each other, the first bevel gear 71 is mounted on the drive shaft 62, and the second bevel gear 72 is rotatably mounted on the second shelf 5 along the axis of the second direction Y, wherein the second bevel gear 72 drives and connects the transition part 82a", can be selected or simultaneously provided. Obviously, simultaneously providing both solutions is better. Specifically, when the two parallel technical solutions are provided simultaneously, the screw sleeve 82 can include the transition part 82a, the second bevel gear 72 can be mounted on the screw 81, and the first bevel gear 71 can be mounted on the drive shaft 62.

[0100] Please see Figure 1 and Figure 2 In one embodiment, the mounting body 1 includes a guide rail 11 corresponding to the first rope winding part 21, the guide rail 11 extending along the first direction X; the first shelf 4 is provided with a slider 41, the slider 41 being movably disposed on the guide rail 11 along the first direction X.

[0101] It should be noted that the connection between the slider 41 and the first shelf 4 is usually a rigid connection, which is intended to restrict the rotation of the first shelf 4 relative to the slider 41. For example, the slider 41 is fixedly connected to the first shelf 4 through a support arm. Of course, it is also possible that the slider 41 and the first shelf 4 can rotate into contact and achieve a relatively rigid connection with the help of external fasteners.

[0102] In the above technical solution, the cooperation between the guide rail 11 and the slider 41 restricts the lifting direction of the first shelf 4, improves the lifting accuracy of the first shelf 4, and the cooperation between the guide rail 11 and the slider 41 is relatively smooth, which helps to reduce the difficulty of operation for users.

[0103] This utility model also proposes a refrigerator having an inner liner 200, in which a lifting shelf 100 of any of the above embodiments is provided. The lifting shelf 100 includes a mounting body 1, a first shelf 4, and a rotation drive 6. The mounting body 1 is provided with a first rope winding part 21, on which a traction rope 3 is wound. The traction rope 3 has a first end 31 and a second end 32 in its extension direction. The first shelf 4 is connected to the first end 31 of the traction rope 3 and is movably disposed on the mounting body 1 along the first direction X. The first shelf 4 has a first side and a second side in the first direction X. The first side is disposed facing the first rope winding part 21 and is used to place items. The rotation drive 6 is rotatably disposed relative to the mounting body 1 and is located on the second side of the first shelf 4. The rotation drive 6 is driven to connect to the second end 32 of the traction rope 3 so that the first shelf 4 moves closer to or away from the first rope winding part 21. The specific structure of the lifting shelf 100 is as described in the above embodiments. Since this refrigerator adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0104] Further, please refer to Figure 1 and Figure 2 In one embodiment, the inner liner 200 of the box is provided with a front opening, and the inner liner 200 of the box has a first side wall 210 on the rear side; the first direction X is set as the up and down direction, and the mounting body 1 is disposed on the first side wall 210.

[0105] In the above technical solution, the mounting body 1 of the lifting shelf 100 is set on the first side wall 210 of the inner liner 200 of the box. The mounting body 1 occupies the least amount of effective storage space in the inner liner 200 of the box and is easy to install.

[0106] In one embodiment, the inner liner 200 of the box has second sidewalls 220 on the left and right sides, and the first rope winding part 21 and the traction rope 3 are provided at the corners of the first sidewall 210 and the second sidewall 220.

[0107] It should be noted that since there are two second sidewalls 220, there is a corner between each second sidewall 220 and the first sidewall 210. The traction group composed of the first rope winding part 21 and the traction rope 3 in this embodiment can be set to correspond to one corner, or a traction group can be set to correspond to both corners, so that the rotation drive part 6 can drive the relative ends of the first shelf 4 to move simultaneously through the two traction groups.

[0108] In the above technical solution, the first rope winding part 21 and the traction rope 3 are set at the corners of the first side wall 210 and the second side wall 220, which helps to reduce the presence of the first rope winding part 21 and the traction rope 3 in the user's vision and improve the user's sensory experience.

[0109] In another embodiment, the inner liner 200 of the box has a bottom wall 230 on the lower side, and the lifting shelf 100 also includes a second shelf 5, which is disposed on the bottom wall 230. The second shelf 5 has a mounting hole 51. The rotary drive unit 6 has a knob 61 and a drive shaft 62 connected to each other. The knob 61 is disposed on the upper side of the second shelf 5 and rotates along the axis in the vertical direction. The drive shaft 62 extends into the lower side of the second shelf 5 through the mounting hole 51 and drives the second end 32 of the traction rope 3.

[0110] In the above technical solution, the second shelf 5 can also hold items. On this basis, the knob 61 of the rotary drive unit 6 is set on the upper side of the first shelf 4 for easy operation by the user. The drive shaft 62 of the rotary drive unit 6 is set on the lower side of the first shelf 4, so that the drive connection structure between the drive shaft 62 and the second end 32 of the traction rope 3 is set on the lower side of the second shelf 5, which can hide the drive connection process and improve the aesthetics of the lifting shelf 100.

[0111] The two parallel technical solutions mentioned above, namely "the inner liner 200 of the box has second side walls 220 on the left and right sides, and the mounting body 1, the first rope winding part 21, and the traction rope 3 are set at the corners of the second side walls 220" and "the inner liner 200 of the box has a bottom wall 230 on the lower side, the lifting shelf 100 also includes a second shelf 5, the second shelf 5 is set on the bottom wall 230, the second shelf 5 has a mounting hole 51, the rotary drive part 6 has a knob 61 and a drive shaft 62 connected to each other, the knob 61 is set on the upper side of the second shelf 5 and rotates along the axis in the vertical direction, and the drive shaft 62 extends into the lower side of the second shelf 5 through the mounting hole 51 and drives the second end 32 of the traction rope 3", can be set individually or simultaneously. Obviously, setting them simultaneously is better.

[0112] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A lifting shelf, characterized in that, include: The mounting body is provided with a first rope winding part, on which a traction rope is wound, and the traction rope has a first end and a second end in its extending direction. A first shelf, connected to a first end of the traction rope, and movably disposed on the mounting body along a first direction, the first shelf having a first side and a second side in the first direction, the first side being disposed towards the first rope winding portion, and used to hold an item; and A rotary drive unit is rotatably disposed relative to the mounting body and located on the second side of the first shelf. The rotary drive unit is driven to the second end of the traction rope so that the first shelf moves closer to or further away from the first rope winding part.

2. The lifting shelf as described in claim 1, characterized in that, The lifting shelf further includes a second shelf, which is opposite to the first shelf in the first direction and is located on the second side of the first shelf. The second shelf has mounting holes. The rotary drive unit has a knob and a drive shaft connected to each other. The knob is located on the side of the second shelf near the first shelf and rotates along the axis of the first direction. The drive shaft extends into the other side of the second shelf through the mounting hole and drives the second end connected to the traction rope.

3. The lifting shelf as described in claim 2, characterized in that, The knob is movable relative to the drive shaft in the first direction to have an operating position protruding from the mounting hole and a hidden position retracted into the mounting hole.

4. The lifting shelf as described in claim 3, characterized in that, In the concealed position, the knob is flush with the surface of the second shelf; and / or, The second shelf is provided with a damping part that abuts against the knob radially; and / or, The knob is provided with a lifting part.

5. The lifting shelf as described in claim 2, characterized in that, The second shelf is provided with a second rope winding portion, which corresponds to the first rope winding portion in the first direction; The traction rope is arranged around the second rope winding section.

6. The lifting shelf as described in claim 2, characterized in that, The second shelf extends along the second direction; The second shelf is provided with a connecting part that is movable along the second direction, the connecting part having a travel distance that moves towards and away from the first rope winding part; The drive shaft is driven to the adapter, and the adapter is connected to the second end of the traction rope.

7. The lifting shelf as described in claim 6, characterized in that, The first shelf extends along a third direction, wherein the second direction is perpendicular to the third direction. The first winding section and the traction rope form a traction group in a one-to-one correspondence. Two traction groups are provided, and they are respectively set at both ends of the first shelf in the third direction. The second ends of the two traction ropes are connected to the adapter.

8. The lifting shelf as described in claim 7, characterized in that, The second shelf is provided with a third rope winding part corresponding to the traction rope, and the third rope winding part corresponds to the adapter part in the second direction; The traction rope is arranged to wrap around the third rope winding section.

9. The lifting shelf as described in claim 6, characterized in that, The lifting shelf further includes a screw and a sleeve that cooperate with each other. The screw is rotatably mounted on the second shelf along the axis of the second direction, and the sleeve is anti-rotational relative to the second shelf. The sleeve includes the transition portion, and the drive shaft is drively connected to the screw; and / or, The lifting shelf also includes a first bevel gear and a second bevel gear that mesh with each other. The first bevel gear is mounted on the drive shaft, and the second bevel gear is rotatably disposed on the second shelf along the axis of the second direction. The second bevel gear drives the connection to the adapter.

10. The lifting shelf as described in any one of claims 1 to 9, characterized in that, The mounting body includes a guide rail corresponding to the first rope winding portion, and the guide rail extends along the first direction; The first shelf is provided with a slider, which is movably disposed on the guide rail along the first direction.

11. A refrigerator, characterized in that, The refrigerator has an inner liner, and the inner liner is provided with a liftable shelf as described in any one of claims 1 to 10.

12. The refrigerator as described in claim 11, characterized in that, The inner liner of the box has a front opening, and the inner liner of the box has a first side wall on the rear side; The first direction is set to the up-down direction, and the mounting body is disposed on the first side wall.

13. The refrigerator as described in claim 12, characterized in that, The inner liner of the box has second side walls on the left and right sides, and the first rope winding part and the traction rope are provided at the corners corresponding to the first side walls and the second side walls; and / or, The inner liner of the box has a bottom wall on the lower side. The lifting shelf also includes a second shelf, which is disposed on the bottom wall and has mounting holes. The rotary drive unit has a knob and a drive shaft connected to each other. The knob is disposed on the upper side of the second shelf and rotates along the axis of the vertical direction. The drive shaft extends into the lower side of the second shelf through the mounting holes and drives the second end connected to the traction rope.

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