Shelf device and refrigeration equipment

Abstract

The utility model relates to the technical field of household appliances, and provides a shelf device and refrigeration equipment. The shelf device comprises a rope, a guide mechanism, a shelf and a driving mechanism, the rope comprises a main rope, a first branch rope and a second branch rope, the first branch rope and the second branch rope are connected with the main rope, and the guide mechanism comprises a first guide assembly and a second guide assembly which are arranged side by side. Each of the first guide assembly and the second guide assembly comprises a sliding rail and a sliding piece sliding along the sliding rail, and the ends, away from the main rope, of the first branch rope and the second branch rope are connected to the corresponding sliding pieces; the shelf is installed on the sliding parts corresponding to the guide assemblies, and the end, away from the first branch rope and the second branch rope, of the main rope is connected to the driving mechanism. And under the driving of the driving mechanism, the shelf moves up and down relative to the sliding rails. Therefore, the position of the shelf can be adjusted according to requirements, so that the height of the shelf is changed, and a user can take and place articles conveniently.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a shelf device and a refrigeration equipment. Background Technology

[0002] As living standards continue to improve, multi-door refrigerators, characterized by large capacity, multiple functions, and categorized storage, are becoming increasingly popular, and people are demanding higher levels of intelligence from refrigerator products.

[0003] Most existing refrigerator shelves are fixed in position, typically consisting of ribs formed on opposite sides of the refrigerator's inner liner, upon which the shelves are placed. To facilitate user adjustment, several ribs are usually pre-installed in the refrigerator design to accommodate shelf placement. However, the height of the shelves cannot accommodate items of varying sizes, limiting storage space and resulting in low space utilization. Many larger items cannot fit, negatively impacting the user experience. Furthermore, the increasing demand for large-capacity refrigerators in recent years has led to a trend towards taller refrigerators, making it difficult to access items on the top shelves, also a problem for users. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the related art. To this end, this invention proposes a shelf device that can adjust the position of the shelf according to needs, thereby changing the height of the shelf and making it easier for users to retrieve and place items.

[0005] This utility model also proposes a refrigeration device.

[0006] The shelf device according to a first aspect of the present invention includes:

[0007] The rope includes the main rope and the first and second branch ropes connected to it.

[0008] The guiding mechanism includes a first guiding component and a second guiding component arranged side by side. Each of the first guiding component and the second guiding component includes a slide rail and a sliding member that slides along the slide rail. The ends of the first branch rope and the second branch rope away from the main rope are connected to the corresponding sliding members.

[0009] A shelf and a drive mechanism are provided, wherein the shelf is mounted on a sliding member corresponding to each of the guide components, and one end of the main rope away from the first branch rope and the second branch rope is connected to the drive mechanism; wherein, driven by the drive mechanism, the shelf moves up and down relative to the slide rail.

[0010] According to one embodiment of the present invention, the driving mechanism includes a driving member, a transmission assembly, and a winding reel. The driving member is connected to the winding reel via the transmission assembly, and the main rope is wound on the winding reel.

[0011] According to one embodiment of the present invention, the transmission assembly includes a worm and a worm wheel, the driving member is dynamically coupled to the worm, the worm wheel is meshed with the worm, and the winding reel is coaxially connected to the worm wheel.

[0012] According to one embodiment of the present invention, the outer peripheral surface of the winding reel is provided with a placement groove, and the main rope is stored in the placement groove.

[0013] According to one embodiment of the present invention, it further includes:

[0014] A pulley assembly includes a first pulley group and a second pulley group arranged side by side, wherein a first branch rope is wound around the first pulley group and a second branch rope is wound around the second pulley group;

[0015] The guiding mechanism and the driving mechanism are both located below the pulley assembly.

[0016] According to one embodiment of the present invention, each pulley group in the first pulley group and the second pulley group includes a first pulley and a second pulley arranged at intervals, and the first branch rope and the second branch rope are sequentially wound around the corresponding first pulley and the second pulley.

[0017] According to one embodiment of the present invention, the first pulley and the second pulley of each pulley assembly are arranged at the same height; or...

[0018] The first pulley group and the second pulley group are set at the same height.

[0019] According to one embodiment of the present invention, it further includes:

[0020] The housing has an installation space and a through hole communicating with the installation space. The drive mechanism is installed in the installation space, and the main rope is threaded through the through hole.

[0021] According to one embodiment of the present invention, one of the sliding member and the shelf of each guide assembly is provided with a hook, and the other is provided with a groove that cooperates with the hook.

[0022] A refrigeration device according to a second aspect of the present invention includes a housing and the aforementioned shelf device, wherein the shelf device is installed inside the housing.

[0023] The above-described one or more technical solutions in the embodiments of this utility model have at least one of the following technical effects:

[0024] After the drive mechanism is activated, it generates tension on the main rope. This tension is transmitted to the corresponding sliding member through the first and second branch ropes. Due to the cooperation between the sliding member and the slide rail, the sliding member slides along the slide rail under the tension. The shelf, mounted on the sliding member, can move up and down with it. The drive mechanism can adjust the tension and its duration as needed, thereby controlling the speed and distance of the shelf's movement. Compared to fixed shelves in existing technologies, this design allows for adjustment of the shelf's position, changing its height for easier access to items.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies 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 these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the shelf device provided in an embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the drive mechanism provided in an embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the structure of the first guide component provided in an embodiment of the present utility model.

[0030] Figure 4 This is a partial structural schematic diagram of the shelf device provided in an embodiment of the present utility model.

[0031] Figure label:

[0032] 1. Rope; 11. Main rope; 12. First branch rope; 13. Second branch rope; 2. Guide mechanism; 21. First guide assembly; 211. Slide rail; 2111. Slide groove; 212. Sliding element; 2121. Roller; 2122. Slot; 22. Second guide assembly; 3. Shelf; 31. Hook; 4. Drive mechanism; 41. Drive element; 42. Transmission assembly; 421. Worm gear; 422. Worm wheel; 43. Winding reel; 5. Pulley assembly; 51. First pulley group; 511. First pulley; 512. Second pulley; 52. Second pulley group; 6. Housing. Detailed Implementation

[0033] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0034] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0036] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] like Figure 1 and Figure 3 As shown, the shelf 3 device of this utility model embodiment includes: a rope 1, a guide mechanism 2, a shelf 3, and a drive mechanism 4. The rope 1 includes a main rope 11 and a first branch rope 12 and a second branch rope 13 connected thereto. Specifically, the main rope 11 includes a free end and a forked end. The first branch rope 12 and the second branch rope 13 are formed at the forked end of the main rope 11. In other words, the main rope 11 is divided into two at its forked end. The rope 1 serves as a transmission medium, responsible for transmitting the power of the drive mechanism 4 to the shelf 3.

[0039] The guiding mechanism 2 includes a first guiding component 21 and a second guiding component 22 arranged side by side, spaced apart, and at the same height. Each guiding component includes a slide rail 211 and a sliding member 212 that slides along the slide rail 211. The ends of a first branch rope 12 and a second branch rope 13 away from the main rope 11 are connected to the corresponding sliding member 212. For example, the first branch rope 12 is connected to the sliding member 212 of the first guiding component 21, and the second branch rope 13 is connected to the sliding member 212 of the second guiding component 22. The slide rail 211 provides guidance and support for the sliding member 212, ensuring the stability and straightness of the shelf 3 during vertical movement. The side-by-side arrangement of the first guiding component 21 and the second guiding component 22 further enhances the stability of the shelf 3.

[0040] Shelf 3 is mounted on a slider 212 corresponding to each guide assembly. Shelf 3 is used to place items, and its vertical movement is achieved by a drive mechanism 4 via rope 1 and guide mechanism 2. Exemplarily, the inner surface of shelf 3 is simultaneously mounted on sliders 212 of the first guide assembly 21 and the second guide assembly 22. The end of the main rope 11 away from the first branch rope 12 and the second branch rope 13 is connected to the drive mechanism 4; wherein, driven by the drive mechanism 4, shelf 3 moves vertically relative to slide rail 211. That is, the drive mechanism 4 provides power, causing the main rope 11 to move the first branch rope 12 and the second branch rope 13 under tension, thereby driving shelf 3 to move vertically.

[0041] Specifically, after the drive mechanism 4 is activated, it generates a pulling force on the main rope 11. The pulling force of the main rope 11 is transmitted to the corresponding sliding member 212 through the first branch rope 12 and the second branch rope 13. Due to the cooperation between the sliding member 212 and the slide rail 211, the sliding member 212 slides along the slide rail 211 under the action of the pulling force. The shelf 3 is installed on the sliding member 212, so it can move up and down together with the sliding member 212. The drive mechanism 4 can adjust the magnitude of the pulling force and the duration of action as needed, thereby controlling the up and down movement speed and distance of the shelf 3. Compared with the fixed shelf 3 in the prior art, the shelf 3 device of this utility model embodiment can adjust the position of the shelf 3 as needed, thereby changing the height of the shelf 3, making it easier for users to pick up and put down items.

[0042] Furthermore, such as Figure 1 and Figure 2 As shown, the drive mechanism 4 includes a drive member 41, a transmission assembly 42, and a winding reel 43. The drive member 41 is connected to the winding reel 43 via the transmission assembly 42, and the main rope 11 is wound on the winding reel 43.

[0043] It should be noted that the drive component 41 is the power source of the drive mechanism 4, and can typically be a drive motor or other type of power device. The transmission assembly 42 is responsible for transmitting the power generated by the drive component 41 to the winding reel 43. The winding reel 43 is the component in the drive mechanism 4 used to wind the main rope 11. When the drive component 41 drives the winding reel 43 to rotate through the transmission assembly 42, the main rope 11 will wind or unwind accordingly, thereby realizing the vertical movement of the shelf 3. That is, when the winding reel 43 rotates under the drive of the drive component 41, the main rope 11 will wind onto or unwind from the winding reel 43. The winding or unwinding of the rope 1 causes the sliding component 212 to move up and down along the slide rail 211, thereby realizing the lifting and lowering function of the shelf 3.

[0044] In practical applications, such as Figure 2As shown, the transmission assembly 42 is responsible for efficiently and stably transmitting the power generated by the drive member 41 to the winding reel 43. The transmission assembly 42 includes a worm gear 421 and a worm wheel 422. The drive member 41 is dynamically coupled to the worm gear 421, the worm wheel 422 is meshed with the worm gear 421, and the winding reel 43 is coaxially connected to the worm wheel 422.

[0045] Specifically, the worm gear 421 is dynamically coupled to the drive component 41 and receives power generated by the drive component 41. When the worm gear 421 rotates, the worm wheel 422 rotates accordingly and transmits power to the component coaxially connected to it. That is, when the worm wheel 422 rotates, the winding reel 43 rotates accordingly, thereby realizing the winding or unwinding of the main rope 11.

[0046] In an optional embodiment, in order to ensure that the main rope 11 can be tightly and orderly wound on the winding reel 43 and to prevent the rope 1 from becoming loose or knotted during the winding process, a placement groove is provided on the outer peripheral surface of the winding reel 43, and the main rope 11 is stored in the placement groove.

[0047] The shape and size of the placement groove should be set according to the diameter and winding method of the main rope 11. Typically, the cross-sectional shape of the placement groove can match the cross-sectional shape of the main rope 11, such as being circular or approximately circular, to ensure that the rope 1 can slide smoothly into and fit tightly within the placement groove. Furthermore, the placement groove can be evenly distributed along the outer circumference of the winding reel 43 to ensure that the main rope 11 is evenly stressed during winding. Simultaneously, the depth and width of the placement groove should also be set according to actual needs to accommodate a sufficient length of main rope 11.

[0048] Specifically, when the drive mechanism 4 is activated, the winding reel 43 rotates under the drive of the drive component 41, and the main rope 11 is wound into the placement slot of the winding reel 43. When the shelf 3 needs to be lowered, the drive mechanism 4 rotates in the opposite direction, and the winding reel 43 rotates in the opposite direction as well, so that the main rope 11 is unwound from the placement slot and released. In this way, it is ensured that the main rope 11 can slide out smoothly during the release process, avoiding the rope 1 from getting stuck or tangled.

[0049] Understandably, the placement groove enhances the friction between the winding reel 43 and the main rope 11, ensuring the stability of the main rope 11 during winding and unwinding. Simultaneously, the placement groove also protects the main rope 11, preventing excessive compression or wear during winding. Furthermore, the placement groove on the outer circumference of the winding reel 43 makes its structure more compact, which helps reduce the size and weight of the drive mechanism 4.

[0050] It should be noted that the shelf 3 device of this utility model embodiment only needs to be wound or released with a single main rope 11 to realize the equidistant movement of the two sliding parts 212 on the left and right sides, which is simple in structure; in addition, the front-to-back (thickness direction) dimension of the winding disc 43 is small, the lever arm is small during the movement, and the overall reliability of the drive mechanism 4 is high.

[0051] like Figure 1 and Figure 2 As shown, in order to optimize the direction and stress of rope 1 and improve the stability and efficiency of the entire device, the shelf 3 device of this utility model embodiment also includes a pulley assembly 5. The pulley assembly 5 includes a first pulley group 51 and a second pulley group 52 arranged side by side. A first branch rope 12 is wound around the first pulley group 51, and a second branch rope 13 is wound around the second pulley group 52. The guide mechanism 2 and the drive mechanism 4 are both located below the pulley assembly 5.

[0052] Specifically, after the drive mechanism 4 is activated, it drives the winding reel 43 to rotate via the transmission assembly 42, causing the main rope 11 to wind or unwind. Since the first branch rope 12 and the second branch rope 13 are respectively wound around the first pulley group 51 and the second pulley group 52, the guiding action of the corresponding pulley groups changes the direction of the rope 1, allowing it to be smoothly transmitted to the corresponding sliding member 212 on the guide mechanism 2. Under the tension of the rope 1, the sliding member 212 slides along the slide rail 211, causing the shelf 3 to move up and down.

[0053] Understandably, the use of pulley assembly 5 reduces friction in the rope 1 during power transmission, thus improving transmission efficiency. Furthermore, the pulley system allows for flexible changes in the direction of the rope 1, making the overall structure of the device more compact and rational. In addition, the guiding effect of the pulley system enables the rope 1 to transmit power more stably, reducing the swaying of the shelf 3 caused by loosening or knotting of the rope 1.

[0054] In optional embodiments, such as Figure 1 and Figure 2 As shown, each pulley group in the first pulley group 51 and the second pulley group 52 includes a first pulley 511 and a second pulley 512 arranged at intervals, and the first branch rope 12 and the second branch rope 13 are sequentially wound around the corresponding first pulley 511 and the second pulley 512.

[0055] It should be noted that the first pulley group 51 includes a first pulley 511 and a second pulley 512 arranged at intervals. The first branch rope 12 is sequentially wound around the first pulley 511 and the second pulley 512 of the first pulley group 51. The second pulley group 52 also includes a first pulley 511 and a second pulley 512 arranged at intervals. The second branch rope 13 is sequentially wound around the first pulley 511 and the second pulley 512 of the second pulley group 52. That is, the first branch rope 12 is first wound around the first pulley 511 of the first pulley group 51, then around the second pulley 512, and finally connected to the slider 212 of the first guide assembly 21. The second branch rope 13 is also wound around the first pulley 511 and the second pulley 512 of the second pulley group 52 and finally connected to the slider 212 of the first guide assembly 21.

[0056] Specifically, when the drive mechanism 4 is activated, the winding reel 43 rotates, causing the main rope 11 to wind or unwind. The first branch rope 12 and the second branch rope 13 are pulled, changing the direction of the rope 1 through the guiding action of their respective pulley systems. The tension of the rope 1 is transmitted through the pulley system to the sliding member 212 on the guide mechanism 2, causing the shelf 3 to move up and down.

[0057] Thus, the alternating arrangement of the first pulley 511 and the second pulley 512 within each pulley block allows the rope 1 to distribute the force when transmitting tension, reducing the load on individual pulleys, which helps extend the service life of the pulleys and rope 1 and improves the reliability of the entire device. Furthermore, the pulley block arrangement allows the rope 1 to flexibly change its direction to adapt to different installation and usage requirements, and by adjusting the position and angle of the pulley blocks, the direction and stress of the rope 1 can be optimized. It is particularly noteworthy that the pulley block arrangement makes the entire shelf 3 device more compact in structure, occupying less space, and facilitating the efficient lifting and lowering function of the shelf 3 within a limited space.

[0058] In practical applications, such as Figure 1 and Figure 2 As shown, the first pulley 511 and the second pulley 512 of each pulley group are set at the same height. Specifically, the first pulley group 51 includes a first pulley 511 and a second pulley 512, both set at the same height. The first branch rope 12 is wound around the first pulley 511 and the second pulley 512 in sequence. Because the pulleys are at the same height, the rope 1 remains stable during winding, reducing additional friction and wear caused by height differences. The second pulley group 52 also includes a first pulley 511 and a second pulley 512, both also set at the same height. The second branch rope 13 is wound around these two pulleys in sequence, similar to the first pulley group 51, ensuring the stability of the rope 1 winding.

[0059] Furthermore, the first pulley group 51 and the second pulley group 52 are set at the same height. In other words, the first pulley group 51 and the second pulley group 52 are also set at the same height overall. The consistent height of the entire pulley assembly 5 in the vertical direction helps to ensure the stability and consistency of the rope 1 when transmitting tension.

[0060] For example, the horizontal portion of the first branch rope 12 between the first pulley 511 and the second pulley 512 of the first pulley group 51 and the horizontal portion of the second branch rope 13 between the first pulley 511 and the second pulley 512 of the second pulley group 52 are arranged at the same height. The vertical portion of the first branch rope 12 between the second pulley 512 of the first pulley group 51 and the slider 212 of the first guide assembly 21 and the vertical portion of the second branch rope 13 between the second pulley 512 of the second pulley group 52 and the slider 212 of the second guide assembly 22 are arranged parallel to each other. In addition, the horizontal and vertical portions of the first branch rope 12 are arranged perpendicularly, and the horizontal and vertical portions of the second branch rope 13 are arranged perpendicularly.

[0061] like Figure 1 and Figure 2 As shown, the shelf 3 device of this utility model embodiment also includes a housing 6, which is provided with an installation space and a through hole communicating with the installation space. The drive mechanism 4 is installed in the installation space, and the main rope 11 is threaded through the through hole.

[0062] It should be noted that the housing 6 has an internal installation space to accommodate key components such as the drive mechanism 4. The housing 6 has a through hole communicating with the installation space for threading the main rope 11. The position and size of the through hole should ensure that the main rope 11 can pass through smoothly and avoid friction or wear with the housing 6.

[0063] Furthermore, such as Figure 3 and Figure 4 As shown, each guide assembly has a hook 31 on one of its slider 212 and shelf 3, and a slot 2122 that mates with the hook 31 on the other. For example, the slider 212 has a slot 2122 and the shelf 3 has a hook 31, thus enabling quick installation and removal of the shelf 3 and the slider 212.

[0064] It should be noted that the slide rail 211 is provided with a slide groove 2111, and the sliding member 212 is provided with a roller 2121. In this way, the roller 2121 can slide smoothly in the slide groove 2111, thereby enabling the shelf 3 to be raised and lowered smoothly.

[0065] Furthermore, this embodiment of the invention also provides a refrigeration device, including a cabinet and a shelf 3 device, the shelf 3 device being installed inside the cabinet. The refrigeration device can be a refrigerator, freezer, etc., and is not specifically limited thereto. For example, the refrigeration device is a refrigerator, which has a storage compartment, and the shelf 3 device can be installed inside the storage compartment.

[0066] Specifically, since the refrigeration equipment includes the shelf 3 device as described above, and the specific structure of the shelf 3 device is as described in the above embodiments, the refrigeration equipment shown in this embodiment includes all the technical solutions of the above embodiments, and therefore has at least all the beneficial effects achieved by all the above technical solutions, which will not be described in detail here.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A shelving device, characterized in that, The utility model relates to a rope guiding device, including: a rope (1) comprising a main rope (11) and first and second branch ropes (12, 13) connected to the main rope (11), a guiding mechanism (2) comprising first and second guiding assemblies (21, 22) arranged side by side, each of the first and second guiding assemblies (21, 22) comprising a sliding rail (211) and a sliding member (212) sliding along the sliding rail (211), the first and second branch ropes (12, 13) being connected to the corresponding sliding members (212) at one end away from the main rope (11), a shelf (3) mounted to the sliding member (212) corresponding to each of the guiding assemblies, and a driving mechanism (4) to which the main rope (11) is connected at one end away from the first and second branch ropes (12, 13), wherein the shelf (3) moves up and down relative to the sliding rail (211) under the driving of the driving mechanism (4).

2. The shelving device of claim 1, wherein, The driving mechanism (4) comprises a driving member (41), a transmission assembly (42), and a winding reel (43), the driving member (41) being in transmission connection with the winding reel (43) through the transmission assembly (42), and the main rope (11) being wound around the winding reel (43).

3. The shelving device of claim 2, wherein, The transmission assembly (42) comprises a worm (421) and a worm wheel (422), the driving member (41) being in power coupling connection with the worm (421), the worm wheel (422) being in meshing connection with the worm (421), and the winding reel (43) being in coaxial connection with the worm wheel (422).

4. The shelving device of claim 2, wherein, The winding reel (43) is provided with a placing groove on the outer circumferential surface, and the main rope (11) is accommodated in the placing groove.

5. The shelving device of any one of claims 1 to 4, wherein, Further comprising: a pulley assembly (5) comprising first and second pulley groups (51, 52) arranged side by side, the first branch rope (12) being wound around the first pulley group (51), and the second branch rope (13) being wound around the second pulley group (52), wherein the guiding mechanism (2) and the driving mechanism (4) are both located below the pulley assembly (5).

6. The shelving device of claim 5, wherein, Each of the first and second pulley groups (51, 52) comprises first and second pulleys (511, 512) arranged at intervals, and the first and second branch ropes (12, 13) are wound around the corresponding first and second pulleys (511, 512) in sequence.

7. The shelving device of claim 6, wherein, The first and second pulleys (511, 512) of each of the pulley groups are arranged at the same height; or The first and second pulley groups (51, 52) are arranged at the same height.

8. The shelving device of any one of claims 1 to 4, wherein, Further comprising: a housing (6) provided with a mounting space and a through hole in communication with the mounting space, the driving mechanism (4) being mounted in the mounting space, and the main rope (11) being threaded through the through hole.

9. The shelving device of any one of claims 1 to 4, wherein, One of the sliding member (212) and the shelf (3) of each of the guide assemblies is provided with a hook (31), and the other is provided with a clamping groove (2122) matched with the hook (31).

10. A refrigeration appliance characterized in that, The application relates to a box and a shelf device as claimed in any one of claims 1 to 9, which is installed in the box.

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