CN211233537U - Storage device - Google Patents

Abstract

The embodiment of the utility model discloses storage device relates to storage device technical field. Which is used for solving the problem of inconvenient adjustment of the shelf of the storage device in the related art. This storage device, including storeroom, shelf and drive arrangement, the shelf activity is located in the storeroom, drive arrangement includes drive unit, reel and pulling rope, the reel with the inner wall rotatable coupling of storeroom, the one end of pulling rope with the reel is connected, the other end with the shelf is connected, drive unit is used for the drive the reel rotates, and when the reel rotates along the first direction, the pulling rope can to twine on the reel, with the pulling the shelf is relative along the direction of height of storeroom the inner wall of storeroom removes. The utility model discloses can be used to the lift adjustment of storage device middle-layer frame such as refrigerator.

Description

Storage device

Technical Field

The utility model relates to a storage device technical field especially relates to a storage device.

Background

As the living standard of people increases, storage devices such as refrigerators are widely used. At present, most of shelves inside the refrigerator are in fixed positions, the placement positions of the shelves can be adjusted only within a limited range, the adjustment distance is fixed, the utilization rate of the space inside the refrigerator is reduced, and partial space is wasted, particularly on a large-volume refrigerator, which is more common. And when the position of needs adjustment layer frame, need to take out the layer frame from the refrigerator completely, still need take out the layer frame again after taking out the various article of placing on the layer frame usually, then pack into the layer frame again in the position that needs, put various article again on the layer frame again, the position of adjustment layer frame is more loaded down with trivial details, and is inconvenient, has reduced user's use experience like this.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a storage device for solve the inconvenient problem of adjustment of storage device's shelf among the correlation technique.

In order to achieve the above object, an embodiment of the present invention provides a storage device, including storeroom, shelf and drive arrangement, the activity of shelf is located in the storeroom, drive arrangement includes drive unit, reel and pull rope, the reel with the inner wall rotatable coupling of storeroom, the one end of pull rope with the reel is connected, the other end with the shelf is connected, drive unit is used for the drive the reel rotates, and works as when the reel rotates along the first direction, the pull rope can to wind on the reel, with the tractive the shelf is followed the direction of height of storeroom is relative the inner wall of storeroom removes.

The embodiment of the utility model provides a storage device, because the inner wall rotatable coupling of reel and storeroom, the one end and the reel of tractive line are connected, the other end is connected with the layer frame, drive unit is used for driving the reel and rotates, when the position of user's needs adjustment layer frame like this, drive unit can drive the line wheel and rotate along the first direction, the tractive line twines on the reel, move along the inner wall of the relative storeroom of direction of height of storeroom with tractive layer frame, thereby can adjust the layer frame to the best position, not only can convenience of customers place the article of co-altitude in to the storeroom, with the utilization ratio that improves storeroom inner space, and, the user is when the position of adjustment layer frame, just need not to take out the layer frame and article on it, thereby made things convenient for user's use greatly, user's experience has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a perspective view of a storage chamber of a refrigerator in an embodiment of the present invention;

fig. 3 is a schematic view of the connection of the driving device to the shelf (the reel is located above the shelf) in the refrigerator according to some embodiments of the present invention;

FIG. 4 is an exploded view of FIG. 3;

fig. 5 is a schematic structural diagram of a driving unit according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a reducer in a drive unit according to an embodiment of the present invention;

fig. 7 is a schematic view of the connection of the driving device to the shelf (the reel is located below the shelf) in the refrigerator according to some embodiments of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be direct connection or through other intermediate medium, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The embodiment of the utility model provides a storage device can be for freezing cold storage devices such as refrigerator, freezer, show cupboard, still can be for article storage cabinet etc. do not have the storage device of cold-stored freezing function and need adjustment shelf position.

The principle of the storage device of the present invention will be described below by taking a refrigerator as an example, and the structure of other storage devices can be specifically set with reference to the structure in the embodiment of the refrigerator.

Fig. 1 is a perspective view of a specific embodiment of a refrigerator according to the present invention, and as shown in fig. 1, the refrigerator according to the embodiment of the present invention has an approximately rectangular parallelepiped shape. The appearance of the refrigerator is defined by a storage chamber 1 defining a storage space and a plurality of door bodies 2 protruding into the storage chamber 1;

as shown in fig. 1, the storage chamber 1 has an open cabinet, the storage chamber 1 is vertically partitioned into a lower freezing chamber 12 and an upper refrigerating chamber 11, and each of the partitioned spaces may have an independent storage space.

In detail, the freezing chamber 12 is defined at a lower side of the storage chamber 1 to be selectively covered by a drawer type freezing chamber door 21. The refrigerating compartment 11 may be selectively opened or closed by a refrigerating compartment door body 22 pivotably mounted on the refrigerating compartment 11.

As shown in fig. 2 and 3, the refrigerator further comprises a shelf 3 and a driving device 4, wherein the shelf 3 is movably arranged in the storage room 1 (such as the refrigerating room 11), the driving device 4 comprises a driving unit 41, a reel 42 and a pulling rope 43, the reel 42 is rotatably connected with the inner wall of the storage room 1, one end of the pulling rope 43 is connected with the reel 42, the other end of the pulling rope 43 is connected with the shelf 3, the driving unit 41 is used for driving the reel 42 to rotate, and when the reel 42 rotates along the first direction R, the pulling rope 43 can be wound on the reel 42 to pull the shelf 3 to move relative to the inner wall of the storage room 1 along the height direction H of the storage room 1.

In the refrigerator, as shown in fig. 2 and 3, since the reel 42 is rotatably connected with the inner wall of the storage chamber 1, one end of the pulling rope 43 is connected with the reel 42, the other end is connected with the layer rack 3, the driving unit 41 is used for driving the reel 42 to rotate, so that when a user needs to adjust the position of the layer rack 3, the driving unit 41 can drive the reel to rotate along the first direction R, the pulling rope 43 winds on the reel 42 to pull the layer rack 3 to move along the height direction H of the storage chamber 1 relative to the inner wall of the storage chamber 1, thereby adjusting the layer rack 3 to the optimal position, not only facilitating the user to place articles with different heights in the storage chamber 1 to improve the utilization rate of the inner space of the storage chamber 1, but also avoiding taking out the layer rack 3 and the articles thereon when the user adjusts the position of the layer rack 3, thereby greatly facilitating the use of the user, the user experience is improved; meanwhile, in the refrigerator, the shelves 3 move along the height direction H of the storage room 1 in a pulling manner of the pulling rope 43, compared with a driving manner that the nuts and the screws directly drive the shelves 3 to move, the length of the pulling rope 43 can be adjusted according to actual conditions, so that the driving unit 41 can pull the shelves 3 to move at a position far away from the shelves 3 through the pulling rope 43, the arrangement position of the driving unit 41 can be widened, and the driving unit 41 can be conveniently installed.

The structure of the driving unit 41 is not exclusive, for example, as shown in fig. 3 and 4, the driving unit 41 may include a motor 411, a speed reducing mechanism 413, and a driving shaft 412, the driving shaft 412 is horizontally disposed and rotatably connected to the inner wall of the storage compartment 1, the reel 42 is fixedly sleeved on the driving shaft 412, and the speed reducing mechanism 413 is in transmission connection with the output shaft of the motor 411 and the driving shaft 412. In addition, the driving unit 41 may also include a motor 411, a driving shaft 412 and a frequency converter, the driving shaft 412 is horizontally disposed and rotatably connected to the inner wall of the storage room 1, the reel 42 is fixedly sleeved on the driving shaft 412, the motor 411 is directly connected to the driving shaft 412 in a transmission manner, and the frequency converter is used for adjusting the rotation speed of the motor 411. Compared with the embodiment that the driving unit 41 comprises the motor 411, the driving shaft 412 and the frequency converter, in the embodiment that the driving unit 41 comprises the motor 411, the speed reducing mechanism 413 and the driving shaft 412, because the speed regulation is completed by the speed reducing mechanism 413, the frequency converter is not needed, the control of the motor 411 is greatly simplified, and the control cost of the motor 411 is favorably reduced.

In the embodiment where the driving unit 41 includes the motor 411, the speed reducing mechanism 413 and the driving shaft 412, the speed reducing mechanism 413 may adopt various structures, for example, the speed reducing mechanism 413 may adopt a worm gear and a worm for reducing speed, specifically, as shown in fig. 3, the speed reducing mechanism 413 includes a first worm wheel 4131 and a first worm 4132, the first worm 4132 is in transmission connection with the output shaft of the motor 411, the first worm wheel 4131 is engaged with the first worm 4132, and the first worm wheel 4131 is used for driving the driving shaft 412 to rotate.

In addition, the speed reduction mechanism 413 may also adopt a synchronous belt drive to reduce the speed, specifically as follows: the speed reducing mechanism 413 comprises a first belt wheel, a second belt wheel and a synchronous belt, the first belt wheel is in transmission connection with an output shaft of the motor 411, the second belt wheel is in transmission connection with the driving shaft 412, and the first belt wheel is connected with the second belt wheel through the synchronous belt. Compared with synchronous belt transmission, the speed reduction is realized by adopting a worm and gear mechanism, and the synchronous belt transmission has the advantages of compact structure, large transmission ratio, stable transmission, capability of transmitting motion and power between two spatially staggered shafts and the like; the large transmission ratio can accurately control the rotating speed of the driving shaft 412, so as to control the lifting speed of the layer frame 3 and the position of the layer frame 3; and can transmit motion and power between two shafts which are spatially staggered, for example, as shown in fig. 3, the angle between the axis of the first worm wheel 4131 and the axis of the first worm 4132 is 90 degrees, which can optimize the spatial arrangement of the motor 411 and the driving shaft 412.

In the embodiment that the speed reducing mechanism 413 adopts the worm gear to reduce speed, in order to further improve the transmission ratio of the speed reducing mechanism 413, as shown in fig. 5 and 6, the speed reducing mechanism 413 further comprises a first transmission shaft 4133, a second worm wheel 4134 and a second worm 4135, the first transmission shaft 4133 is rotatably arranged on the inner wall of the storage chamber 1, the second worm 4135 and the first worm wheel 4131 are fixedly arranged on the first transmission shaft 4133 and are coaxially arranged with the first transmission shaft 4133, the second worm wheel 4134 is engaged with the second worm 4135, and the second worm wheel 4134 is used for driving the rotation of the driving shaft 412. By providing the two-stage worm gear transmission, the transmission ratio of the speed reduction mechanism 413 is further increased, so that the rotation speed of the driving shaft 412 can be more accurately controlled, and the lifting speed of the shelves 3 and the position of the shelves 3 can be accurately controlled.

In order to optimize the position arrangement between each transmission component of the speed reducing mechanism 413 and the driving shaft 412, as shown in fig. 6, the speed reducing mechanism 413 further includes a second transmission shaft 4136, a first gear 4137 and a second gear 4138, the second transmission shaft 4136 is rotatably disposed on the inner wall of the storage chamber 1, the first gear 4137 and the second worm gear 4134 are both fixedly sleeved on the second transmission shaft 4136, the second gear 4138 is fixedly sleeved on the driving shaft 412, and the first gear 4137 is engaged with the second gear 4138. Compared with the second worm gear 4134 directly fixed on the driving shaft 412, the first gear 4137 and the second gear 4138 are arranged between the second worm gear 4134 and the driving shaft 412, so that the position between the first transmission shaft 4133 and the driving shaft 412 can be adjusted, and the design of the structure of the storage room 1 around the speed reducing mechanism 413 can be adapted, for example, as shown in fig. 2 and 6, the first gear 4137 and the second gear 4138 are arranged, so that the first transmission shaft 4133 can be arranged below the driving shaft 412, the space on the front side and the rear side of the driving shaft 412 is not occupied, and the position arrangement between the first transmission shaft 4133 and the driving shaft 412 can be optimized.

In order to prevent the shelves 3 from sliding down under the action of gravity when the motor 411 stops driving, as shown in fig. 6, a lead angle (also referred to as a spreading helix angle) of the first worm 4132 is smaller than a friction angle (also referred to as an equivalent friction angle between meshing teeth of the first worm 4131 and the first worm 4132) at which the first worm 4131 and the first worm 4132 are in contact, so that self-locking can be formed between the first worm 4132 and the first worm 4131, the first worm 4131 can only be driven by the first worm 4132 to rotate, and the reverse direction cannot be achieved, so that the shelves 3 can be kept at a preset position after the motor 411 stops driving, the shelves 3 are prevented from sliding down under the action of gravity, and the position accuracy of the shelves 3 can be ensured.

In addition to the self-locking between the first worm wheel and the first worm 4132, the self-locking between the second worm 4135 and the second worm wheel 4134 may be formed, that is, the lead angle of the second worm 4135 is smaller than the friction angle of the second worm wheel 4134 in contact with the second worm 4135; in addition, self-locking can be formed between the first worm wheel and the first worm 4132 and between the second worm wheel 4134 and the second worm 4135, and the effect of preventing the shelf 3 from sliding down under the action of gravity when the motor 411 stops driving can also be achieved.

In this refrigerator, the positional layout of the reels 42 and the shelves 3 is also not exclusive, and for example, as shown in fig. 3, the reels 42 may be located on the upper side of the shelves 3. When the user needs to adjust the position of the shelf 3 upward, the driving unit 41 drives the reel 42 to rotate in the first direction R, and the pulling rope 43 winds onto the reel 42 to pull the shelf 3 to move upward; when the user needs to adjust the position of the shelf 3 downward, the driving unit 41 drives the reels 42 to rotate in the second direction M opposite to the first direction R, and the pulling rope 43 is gradually disengaged from the reels 42 by the gravity of the shelf 3 to move the shelf 3 downward.

In addition, as shown in fig. 7, the reel 42 can also be located at the lower side of the shelf 3, the upper side of the shelf 3 is provided with an elastic member 5 (such as a spring), and the elastic member 5 is connected with the inner wall of the storage chamber 1 and the shelf 3; when the user needs to adjust the position of the shelf 3 downwards, the driving unit 41 drives the reel 42 to rotate in one direction, the pulling rope 43 is wound on the reel 42 to pull the shelf 3 to move downwards, and meanwhile, the elastic piece 5 is elastically deformed to provide an upward elastic force to the shelf 3; when the user needs to adjust the position of the shelf 3 upward, the driving unit 41 drives the reel 42 to rotate in the reverse direction, and the pulling rope 43 is gradually separated from the reel 42 by the elastic force of the elastic member 5 to move the shelf 3 upward. Compared with the reel 42 arranged at the lower side of the shelf 3, when the reel 42 is arranged at the upper side of the shelf 3, the structure of the driving unit 41 is simpler, the elastic part 5 is not needed to be arranged, and meanwhile, heavier objects can be placed on the shelf 3 (when the reel 42 is arranged at the lower side of the shelf 3, the elastic force of the elastic part 5 needs to drive the shelf 3 to ascend, and the weight of the objects placed on the shelf 3 is limited due to the limited elastic force of the elastic part 5).

In order to reduce the pressing of the driving shaft 412 to the space for placing the articles in the storage room 1, as shown in fig. 2, the driving shaft 412 extends in the width direction X of the storage room 1 and is disposed at a position close to the rear sidewall 13 of the storage room 1. The driving shaft 412 is disposed at a position close to the rear side wall 13 of the storage room 1, so that the occupation of the driving shaft 412 on the front space of the storage room 1 can be avoided, the interference of the articles placed on the shelves 3 with the driving shaft 412 can be avoided, the space for placing the articles extruded by the driving shaft 412 can be reduced, and the utilization rate of the space of the storage room 1 can be improved.

It should be noted that: the rear side wall 13 of the storage chamber 1 refers to a side wall of the storage chamber 1 opposite to the opening of the storage chamber 1; as shown in fig. 1 and 2, the width direction X of the storage chamber 1 is a direction perpendicular to both the height direction H and the depth direction Y of the storage chamber 1; the depth direction Y of the storage chamber 1 is a direction parallel to the thickness direction of the door of the storage chamber 1 when the door is closed.

In order to make the lifting process of the shelves 3 more stable, as shown in fig. 2 and 3, the driving shaft 412 extends along the width direction X of the storage room 1, the number of the reels 42 is two, the two reels 42 are fixedly sleeved on the driving shaft 412 at intervals, the number of the pulling ropes 43 is two, one end of each of the two pulling ropes 43 is respectively connected with the two end parts of the shelves 3 along the width direction X of the storage room 1 in a one-to-one correspondence manner, and the other end is respectively connected with the corresponding reel 42; when the driving shaft 412 rotates in the first direction R, each pulling rope 43 may be wound on the corresponding reel 42 to pull the shelves 3 to move relative to the inner wall of the storage room 1 in the height direction H of the storage room 1. Through setting up two reels 42, two tractive lines 43 to two tractive lines 43 are connected with layer frame 3 along two tip one-to-one of storeroom 1's width direction X respectively, like this at the in-process that layer frame 3 goes up and down, just can make layer frame 3 keep balance on storeroom 1's width direction X, avoid appearing rocking, thereby make the process that layer frame 3 goes up and down more steady, and then be favorable to guaranteeing that the article on layer frame 3 can not drop or empty.

In which the arrangement positions of the two reels 42 on the drive shaft 412 are also not unique, for example, as shown in fig. 3, the two reels 42 may be provided at both end portions of the drive shaft 412, respectively. In addition, both reels 42 may also be provided at a middle position of the drive shaft 412. When the two reels 42 are provided at both end portions of the drive shaft 412, respectively, the inclination angles of the two pulling ropes 43 are relatively small as compared to those provided at the middle portion of the drive shaft 412, so that the effective component force of the pulling ropes 43 pulling the layer frame 3 is relatively large, and the efficiency of the driving unit 41 driving the layer frame 3 to move through the pulling ropes 43 can be improved.

In order to make the movement of the shelves 3 under the traction of the traction rope 43 more smooth, as shown in fig. 3 and 4, the shelves 3 are connected to the inner wall of the storage room 1 by the guide structure 6, and the guide structure 6 is used to guide the shelves 3 when the shelves 3 move relative to the inner wall of the storage room 1 in the height direction H of the storage room 1. The layer frame 3 is guided by arranging the guide structure 6, so that the layer frame 3 can move more stably, and shaking is avoided, thereby being favorable for ensuring that articles on the layer frame 3 cannot fall or topple.

The guiding structure 6 is not exclusive, for example, the guiding structure 6 may be as follows, as shown in fig. 3 and 4, the guiding structure 6 includes a slide rail 61 and a slider 62 capable of sliding along the slide rail 61, the slide rail 61 is disposed on an inner wall of the storage room 1 and extends along the height direction H of the storage room 1, and the slider 62 is fixedly connected to the layer rack 3. In addition, the guide structure 6 may be as follows: guide structure 6 includes spout and spacing arch, and the spout is seted up on the inner wall of storeroom 1, and extends along storeroom 1's direction of height H, and spacing arch sets up on layer frame 3, and with spout sliding fit.

As shown in fig. 4, one end of the pulling rope 43 is connected to the sliding block 62, and the pulling rope 43 drives the layer frame 3 to move relative to the sliding rail 61 through the pulling sliding block 62; however, the present invention is not limited to this, and one end of the pulling rope 43 may be directly connected to the shelf 3, which may be determined according to the actual situation.

As shown in fig. 2 and 5, the inner wall of the storage chamber 1 includes a wall surface and a fixing seat 14 disposed on the wall surface, and the motor 411 and the speed reducing mechanism 413 are both disposed on the fixing seat 14; the first transmission shaft 4133 and the second transmission shaft 4136 of the speed reducing mechanism 413 are both rotatably disposed on the fixing base 14.

As shown in fig. 2 and 3, an electric button 7 for controlling the forward and reverse rotation of the motor 411 is further disposed on the inner wall of the storage chamber 1, and a user can control the forward and reverse rotation of the motor 411 through the electric button 7, so as to control the lifting of the shelves 3.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A storage device, characterized by, including storeroom, shelf and drive arrangement, the shelf activity is located in the storeroom, drive arrangement includes drive unit, reel and pulling rope, the reel with the inner wall rotatable coupling of storeroom, one end of pulling rope with the reel is connected, the other end with the shelf is connected, drive unit is used for driving the reel rotates, and when the reel rotates along the first direction, the pulling rope can twine on the reel, with the pulling the shelf along the direction of height of storeroom relative the inner wall of storeroom removes.

2. The storage device as claimed in claim 1, wherein the driving unit includes a motor, a speed reducing mechanism and a driving shaft, the driving shaft is horizontally disposed and rotatably connected to an inner wall of the storage compartment, the reel is fixedly sleeved on the driving shaft, and the speed reducing mechanism is in transmission connection with an output shaft of the motor and the driving shaft.

3. The storage device of claim 2, wherein the speed reducing mechanism includes a first worm gear and a first worm, the first worm is in transmission connection with an output shaft of the motor, the first worm gear is engaged with the first worm, and the first worm gear is used for driving the driving shaft to rotate.

4. The storage device as claimed in claim 3, wherein the speed reducing mechanism further comprises a first transmission shaft rotatably provided on an inner wall of the storage chamber, a second worm wheel and a second worm, the second worm and the first worm wheel are both fixedly provided on the first transmission shaft and are both coaxially provided with the first transmission shaft, the second worm wheel is engaged with the second worm, and the second worm wheel is used for driving the driving shaft to rotate.

5. The storage device as claimed in claim 4, wherein the speed reducing mechanism further comprises a second transmission shaft, a first gear and a second gear, the second transmission shaft is rotatably disposed on an inner wall of the storage chamber, the first gear and the second worm gear are both fixedly sleeved on the second transmission shaft, the second gear is fixedly sleeved on the driving shaft, and the first gear is engaged with the second gear.

6. Storage device according to claim 4, characterized in that the lead angle of the first worm is smaller than the friction angle of the first worm wheel in contact with the first worm, and/or the lead angle of the second worm is smaller than the friction angle of the second worm wheel in contact with the second worm.

7. The storage device according to any one of claims 1 to 6, wherein the reel is located on an upper side of the shelf.

8. The storage device according to any one of claims 2 to 6, wherein the driving shaft extends in a width direction of the storage chamber and is provided at a position close to a rear side wall of the storage chamber.

9. The storage device according to any one of claims 2 to 6, wherein the drive shaft extends in a width direction of the storage chamber, the number of the reels is two, the two reels are fixedly sleeved on the drive shaft at intervals, the number of the pulling ropes is two, one end of each of the two pulling ropes is connected with two end portions of the shelf in the width direction of the storage chamber in a one-to-one correspondence manner, and the other end of each of the two pulling ropes is connected with the corresponding reel; when the driving shaft rotates along the first direction, each pulling rope can be wound on the corresponding reel so as to pull the shelf to move along the height direction of the storage room relative to the inner wall of the storage room.

10. The storage device according to claim 9, wherein the two reels are provided at both end portions of the drive shaft, respectively.

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