Rack and refrigerator

Abstract

The utility model relates to the technical field of refrigerators, and discloses a rack which comprises a rack body. The sliding mechanism comprises a sliding rail, and the shelf body can slide up and down along the sliding rail; the shelf body is provided with an upper limit position and a lower limit position; the driving mechanism comprises a motor and a pull rope, and the motor drives the shelf body to ascend and descend through the pull rope; a first limiting block and a second limiting block are arranged on the pull rope in a spaced mode, and a first stopping piece and a second stopping piece are arranged along the moving track of the pull rope. The first limiting block corresponds to an upper limit position, and the second limiting block corresponds to a lower limit position; the first limiting block can abut against the first stopping piece so as to prevent the shelf body from rising. The second limiting block can abut against the second stopping piece so as to prevent the shelf body from descending. In this way, a user can automatically adjust the height of the shelf body through the motor according to the actual height requirement so as to meet the storage requirements of different articles. The utility model further discloses the refrigerator.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, for example, to a shelf and a refrigerator. Background Art

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature, used to keep food or other items at a constant low temperature. The core components of a refrigerator include a refrigeration system and a storage box. The refrigeration system can continuously and stably provide a low-temperature environment for the storage box, thereby meeting people's needs for food preservation and storage.

[0003] In the related art, a multi-layer shelf is usually provided in a storage box of a refrigerator, and ribs are formed on opposite sides of the inner tank of the refrigerator, and the shelf is placed on the ribs. In order to facilitate user adjustment, several ribs of different heights are reserved on the inner tank to adjust the position of the shelf.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The user needs to manually disassemble and assemble the shelf on the ribs of different heights to adjust the height of the shelf. The operation is very inconvenient and the adjustable height is limited.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a shelf and a refrigerator, which solve the problem of inconvenient height adjustment of the shelf.

[0009] In some embodiments, the rack comprises:

[0010] Shelf body;

[0011] The sliding mechanism comprises a slide rail, and the shelf body can slide up and down along the slide rail; and the shelf body has an upper limit position and a lower limit position;

[0012] The driving mechanism includes a motor and a pull rope, and the motor drives the shelf body to rise and fall through the pull rope; a first limit block and a second limit block are provided on the pull rope at intervals, and a first stopper and a second stopper are provided along the moving track of the pull rope;

[0013] Furthermore, the first limit block corresponds to the upper limit position, and the second limit block corresponds to the lower limit position; the first limit block can conflict with the first stopper to prevent the shelf body from rising; the second limit block can conflict with the second stopper to prevent the shelf body from descending.

[0014] Optionally, the slide rail is arranged vertically, and a roller assembly is provided above the slide rail;

[0015] The first end of the pull rope is connected to the motor, and the second end of the pull rope extends downward around the roller assembly and is connected to the shelf body.

[0016] Optionally, the first limit block and the second limit block are arranged at a portion of the pull rope located between the roller assembly and the slide rail, and the first limit block is located above the second limit block.

[0017] Optionally, the roller assembly includes:

[0018] Roller body;

[0019] The mounting bracket is used for mounting the roller body, and the mounting bracket serves as a first stopper; when the shelf body moves to the upper limit position, the first limit block conflicts with the mounting bracket.

[0020] Optionally, the upper end of the slide rail serves as a second stopper, and when the shelf body moves to the lower limit position, the second limit block abuts against the upper end of the slide rail.

[0021] Optionally, a sliding block is provided on the side of the shelf body, and the sliding block can form a sliding fit connection with the slide rail so that the shelf body slides along the slide rail.

[0022] Optionally, a movable pulley is provided on the slider, and the movable pulley is connected to the second end of the pull rope; the motor drives the movable pulley to move through the pull rope, and the movable pulley drives the shelf body to rise and fall through the slider.

[0023] Optionally, the two slide rails are arranged in parallel, and the shelf body is respectively connected to the two slide rails through two sliding blocks.

[0024] In some embodiments, the refrigerator includes the shelf.

[0025] Optionally, the refrigerator further comprises:

[0026] The box body has a shelf arranged inside the box body; and the slide rail is vertically arranged on the inner wall of the box body.

[0027] The rack and refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0028] The motor drives the shelf body to rise and fall through the pull rope, so that the user can automatically adjust the height of the shelf body through the motor according to the actual height requirements to meet the storage needs of different items. The highest position of the shelf body rising is called the upper limit position, and the lowest position of the shelf body falling is called the lower limit position. By setting two limit blocks on the pull rope, the lifting and lowering position of the shelf body is limited. Among them, when the shelf moves to the upper limit position, the first limit block conflicts with the first stopper, thereby preventing the shelf body from continuing to rise; when the shelf moves to the lower limit position, the second limit block conflicts with the second stopper, thereby preventing the shelf body from continuing to descend. In this way, the shelf body can be prevented from excessive lifting and lowering, which is beneficial to protecting the safety of the shelf and the items placed thereon.

[0029] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0031] Figure 1 is a schematic structural diagram of a first embodiment of a shelf provided by an embodiment of the present disclosure;

[0032] Figure 2 is a schematic diagram of the assembly of a winding wheel and a pull rope provided in an embodiment of the present disclosure;

[0033] Figure 3 is a schematic structural diagram of a winding wheel provided in an embodiment of the present disclosure;

[0034] Figure 4 is a schematic diagram of the structure of a pull rope provided in an embodiment of the present disclosure;

[0035] Figure 5 is a schematic structural diagram of a second embodiment of a shelf provided by an embodiment of the present disclosure;

[0036] Figure 6 It is a schematic diagram of the pull wire rack provided in the embodiment of the present disclosure driving the shelf body to rise;

[0037] Figure 7 is a schematic diagram of a rack body driven to descend by a pull-wire rack provided in an embodiment of the present disclosure;

[0038] Figure 8 It is a schematic diagram of the assembly of the wire pulling gear and the wire pulling rack provided in the embodiment of the present disclosure;

[0039] Fig. 9 is a schematic structural diagram of a third embodiment of a shelf provided by an embodiment of the present disclosure;

[0040] Fig.10 is a schematic diagram of the interference between the first limiting block and the first stopping block provided in an embodiment of the present disclosure;

[0041] Fig.11 is a schematic diagram of the interference between the second limiting block and the second stopping block provided in an embodiment of the present disclosure;

[0042] Fig.12 is a schematic structural diagram of a middle gear in a fourth embodiment provided by an embodiment of the present disclosure;

[0043] Fig.13 is a schematic diagram of the structure of an incomplete tooth provided in an embodiment of the present disclosure;

[0044] Fig.14 is a schematic structural diagram of a micro switch according to a fifth embodiment of the present disclosure;

[0045] Fig.15 is a schematic diagram of the structure of a position limiting member provided in an embodiment of the present disclosure;

[0046] Fig.16 is a schematic diagram of the structure of the limit groove provided in an embodiment of the present disclosure;

[0047] Fig.17 is a schematic diagram of a micro switch in an untriggered state provided by an embodiment of the present disclosure;

[0048] Fig.18 It is a schematic diagram of the triggering state of the micro switch provided in the embodiment of the present disclosure.

[0049] Reference numerals:

[0050] 100: shelf body; 110: slide rail; 120: slider; 130: roller body; 140: mounting bracket; 150: movable pulley;

[0051] 200: motor; 210: winding wheel; 211: fixing groove; 212: wire guide groove; 213: first side wall; 214: fillet; 220: pull rope; 221: first limit block; 222: second limit block; 223: first stop member; 224: second stop member; 225: fixing block; 230: wire pulling gear; 231: wire pulling rack; 232: first resistance block; 233: second resistance block;

[0052] 300: intermediate gear; 301: first gear; 302: second gear; 303: third gear; 310: output gear; 311: incomplete teeth; 312: output shaft; 313: web; 314: limiting groove; 320: worm;

[0053] 400: micro switch; 410: first arm; 411: limit member; 412: trigger member; 413: receiving member; 420: second arm; 430: rotating shaft; 440: spring member. DETAILED DESCRIPTION

[0054] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0055] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0056] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0057] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0058] Unless otherwise stated, the term "plurality" means two or more.

[0059] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0060] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0061] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0062] Combination Figure 1-4 As shown, the first embodiment of the present application provides a shelf, including a shelf body 100, a sliding mechanism and a driving mechanism. Figure 1 As shown, the sliding mechanism includes a slide rail 110, and the shelf body 100 can slide up and down along the slide rail 110; the driving mechanism includes a motor 200, a winding wheel 210 and a pull rope 220; Figure 3 As shown, the end surface of the winding wheel 210 is provided with a fixing groove 211, and the two sides of the fixing groove 211 are respectively provided with a lead groove 212; the first end of the lead groove 212 is connected to the fixing groove 211, and the second end thereof passes through the edge of the winding wheel 210; Figure 4 As shown, a fixing block 225 is provided in the middle of the pull rope 220, and the fixing block 225 is installed in the fixing groove 211; Figure 2 As shown, the two ends of the pull rope 220 extend out of the winding wheel 210 in opposite directions along the two guide grooves 212, and are respectively connected to the two sides of the shelf body 100; wherein the motor 200 is used to drive the winding wheel 210 to rotate to wind or release the pull rope 220, thereby driving the shelf body 100 to rise and fall.

[0063] In this embodiment, in order to realize the assembly of the pull rope 220 and the winding wheel 210, a fixing groove 211 and a wire guide groove 212 are provided on the end surface of the winding wheel 210, and a fixing block 225 is provided in the middle of the pull rope 220. During assembly, the fixing block 225 is installed in the fixing groove 211, and the two ends of the pull rope 220 are respectively extended out of the winding wheel 210 in opposite directions along the two wire guide grooves 212. At this time, the pull rope 220 is fixed to the winding wheel 210, and when the winding wheel 210 rotates, its side surface can simultaneously wind or release the two ends of the pull rope 220. In this way, the assembly of the pull rope 220 is simple and the winding wheel 210 can achieve a better winding effect. When the wire reel 210 winds the pull rope 220, the pull rope 220 pulls the shelf body 100 to slide upward along the slide rail 110; when the wire reel 210 releases the pull rope 220, the shelf body 100 slides downward along the slide rail 110 under the action of gravity, thereby achieving the rise and fall of the shelf body 100. In this way, the user can automatically adjust the height of the shelf body 100 through the motor 200 according to the actual height requirement to meet the storage requirements of different items.

[0064] Alternatively, if Figure 3 As shown, the extension direction of the lead groove 212 is a straight line, and the extension directions of the two lead grooves 212 coincide with each other.

[0065] In this embodiment, when assembling the pull rope 220, the straight wire guide groove 212 can prevent the pull rope 220 from being easily deviated due to the bending of the path. In addition, the extension directions of the two wire guide grooves 212 coincide with each other, so that the initial winding points at both ends of the pull rope 220 are located on the same diameter of the winding wheel 210, which is conducive to evenly winding the pull rope 220.

[0066] For example, Figure 2 As shown, the winding wheel 210 is in the initial position, and the extension direction of the two wire guide grooves 212 is vertical. During assembly, one end of the pull rope 220 extends leftward from the winding wheel 210 along one wire guide groove 212 and connects to the left side of the shelf body 100; the other end of the pull rope 220 extends rightward from the winding wheel 210 along the other wire guide groove 212 and connects to the right side of the pull rope 220. Such a layout is conducive to improving the winding effect of the winding wheel 210.

[0067] Optionally, the widths of the two guide grooves 212 are the same and are both adapted to the diameter of the pull rope 220. In this way, the problem of the pull rope 220 being stuck due to the guide groove 212 being too narrow is avoided, and the problem of the pull rope 220 being excessively shaken due to the guide groove 212 being too wide is avoided, so that the movement of the pull rope 220 is smoother.

[0068] Optionally, the fixing groove 211 is arranged at the center of the end surface of the winding wheel 210. In this way, when the pull rope 220 is wound onto the winding wheel 210, its tension can be evenly distributed on the entire winding wheel 210.

[0069] Alternatively, if Figure 3 As shown, the side wall of the fixing groove 211 connected to the lead groove 212 is called the first side wall 213, and the width of the lead groove 212 is smaller than the width of the first side wall 213. In this way, the fixing block 225 can be prevented from moving along the lead groove 212, making the fixing block 225 more stable after installation.

[0070] Optionally, the extension direction of the wire guide groove 212 is perpendicular to the first side wall 213. In this way, the arrangement path of the pull rope 220 in the wire guide groove 212 is optimized.

[0071] Alternatively, if Figure 2 As shown, the top of the fixing block 225 extends out of the notch of the fixing groove 211 .

[0072] In this embodiment, since the top of the fixing block 225 extends out of the notch, the user can visually check whether the fixing block 225 is firmly installed in the fixing slot 211 and whether it is worn or loose. In addition, when the fixing block 225 needs to be removed or replaced, it can also be conveniently operated from the notch.

[0073] Alternatively, if Figure 3 As shown, a fillet 214 is provided at the junction of the second end of the wire guide groove 212 and the side of the winding wheel 210. The fillet 214 is helpful to reduce the wear between the pull rope 220 and the wire guide groove 212.

[0074] An embodiment of the present disclosure also provides a refrigerator, comprising the shelf described in any of the above embodiments.

[0075] Optionally, the refrigerator further includes a box body, in which the shelf is disposed; and the slide rail 110 is vertically arranged on the inner wall of the box body; when the winding wheel 210 winds the pull rope 220, it drives the shelf body 100 to rise, and when the winding wheel 210 releases the pull rope 220, it drives the shelf body 100 to descend.

[0076] In this embodiment, the automatic lifting and lowering adjustment of the shelf is realized through the cooperation of the motor 200, the winding wheel 210 and the pull rope 220, and the user can adjust the height of the shelf according to the storage requirements. In this way, the space inside the refrigerator is effectively utilized, and the use of the refrigerator is more intelligent, which improves the convenience of use.

[0077] Combination Figure 5-8 As shown, the second embodiment of the present application provides a shelf, including a shelf body 100, a sliding structure and a driving mechanism. Figure 5 As shown, the sliding mechanism includes a slide rail 110, and the shelf body 100 can slide up and down along the slide rail 110; the driving mechanism includes a motor 200, a wire pull gear 230, a wire pull rack 231 and a pull rope 220; wherein the motor 200 drives the wire pull gear 230 to rotate, and the two wire pull racks 231 are respectively engaged with the two sides of the wire pull gear 230; and the first ends of the two pull ropes 220 are respectively connected to the two wire pull racks 231, and the second ends of the two pull ropes 220 are respectively connected to the two sides of the shelf body 100; as shown Figure 6 and Figure 7 As shown, the wire pulling gear 230 drives the two wire pulling racks 231 to move synchronously to adjust the positions of the two pulling ropes 220, thereby driving the shelf body 100 to rise and fall.

[0078] In this embodiment, the motor 200 drives the wire rack 231 to move through the wire gear 230, and when the wire rack 231 moves, it drives the pull rope 220 to move, and when the pull rope 220 moves, it drives the shelf body 100 to rise or fall. In addition, based on the position layout of the two wire racks 231 and the two pull ropes 220, when the wire gear 230 rotates, the two wire racks 231 move synchronously, and then the two pull ropes 220 can pull the two sides of the shelf body 100 to move stably. When the wire rack 231 drives the pull rope 220 to move upward, the pull rope 220 pulls the shelf body 100 to slide upward along the slide rail 110; when the wire rack 231 drives the pull rope 220 to move downward, the shelf body 100 slides downward along the slide rail 110 under the action of gravity, thereby realizing the rise and fall of the shelf body 100. In this way, the user can automatically adjust the height of the shelf body 100 through the motor 200 according to actual height requirements to meet the storage requirements of different items.

[0079] Optionally, the first end of the wire pull rack 231 is meshed with the wire pull gear 230, and the second end of the wire pull rack 231 is connected to the first end of the pull rope 220; when the wire pull rack 231 moves toward its first end, the shelf body 100 rises; when the wire pull rack 231 moves toward its second end, the shelf body 100 descends.

[0080] In this embodiment, if Figure 8 As shown in FIG. 2 , the position where the first end of the wire pulling rack 231 is meshed with the wire pulling gear 230 can be regarded as the initial position of the pull rope 220. Figure 6 As shown, the wire pull gear 230 drives the wire pull rack 231 to move, and when the wire pull rack 231 moves toward its first end, the pull rope 220 moves away from the initial position and pulls the shelf up; Figure 7 As shown, when the wire-pulling rack 231 moves toward the second end thereof, the pull rope 220 moves toward the direction close to the initial position, and the shelf body 100 descends under the action of gravity.

[0081] Optionally, a first abutment block 232 is disposed at the first end of the wire pulling rack 231 , and the first abutment block 232 may abut against the wire pulling gear 230 to prevent the wire pulling rack 231 from moving toward the second end thereof.

[0082] In this embodiment, the lowest position of the shelf body 100 is called the lower limit position. Under the interference between the first abutment block 232 and the wire pulling gear 230, the wire pulling rack 231 is effectively restricted from excessively moving toward the second end thereof. In this way, the shelf body 100 can be prevented from moving beyond the lower limit position when the driving mechanism is working.

[0083] Optionally, a second abutment block 233 is disposed at the second end of the wire pulling rack 231 , and the second abutment block 233 may abut against the wire pulling gear 230 to prevent the wire pulling rack 231 from moving toward the first end thereof.

[0084] In this embodiment, the highest position of the shelf body 100 is called the upper limit position. Under the interference between the second abutment block 233 and the wire pulling gear 230, the wire pulling rack 231 is effectively restricted from excessively moving toward the first end thereof. In this way, the shelf body 100 can be prevented from moving beyond the upper limit position when the driving mechanism is working.

[0085] Optionally, the first end of the pull rope 220 is connected to the second abutment block 233. In this way, the second abutment block 233 provides a connection position for the pull rope 220.

[0086] Optionally, the two wire drawing racks 231 are parallel to each other. In this way, the parallel design enables the two wire drawing racks 231 to maintain a relatively stable spacing during movement, thereby reducing malfunctions caused by friction or collision.

[0087] Exemplarily, the two wire pulling racks 231 are arranged horizontally, and one wire pulling rack 231 is located above the other wire pulling rack 231. In addition, a guide structure is provided on one side of each rack, and the guide structure is used to guide the corresponding wire pulling rack 231 to move and prevent the wire pulling rack 231 from shaking.

[0088] Optionally, the two wire pulling racks 231 have the same length.

[0089] In this embodiment, since the two wire drawing racks 231 have the same length, their meshing relationship and force conditions with the wire drawing gear 230 are consistent. In this way, when the driving mechanism is working, the two wire drawing racks 231 can move synchronously, which helps to maintain the stability of the shelf body 100 during the lifting process.

[0090] An embodiment of the present disclosure also provides a refrigerator, comprising the shelf described in any of the above embodiments.

[0091] Optionally, the refrigerator further includes a box body, and the shelf is disposed in the box body; and the slide rail 110 is vertically arranged on the inner wall of the box body.

[0092] In this embodiment, the automatic lifting and lowering adjustment of the shelf is realized through the cooperation of the motor 200, the wire rack 231, the wire gear 230 and the pull rope 220, and the user can adjust the height of the shelf according to the storage requirements. In this way, the space inside the refrigerator is effectively utilized, and the use of the refrigerator is more intelligent, which improves the convenience of use.

[0093] Combination Figure 9-11As shown, the third embodiment of the present application provides a shelf, including a shelf body 100, a sliding mechanism and a driving mechanism. Fig. 9 As shown, the sliding mechanism includes a slide rail 110, and the shelf body 100 can slide up and down along the slide rail 110; and the shelf body 100 has an upper limit position and a lower limit position; the driving mechanism includes a motor 200 and a pull rope 220, and the motor 200 drives the shelf body 100 to rise and fall through the pull rope 220; the pull rope 220 is provided with a first limit block 221 and a second limit block 222 at intervals, and a first stopper 223 and a second stopper 224 are provided along the moving track of the pull rope 220; and the first limit block 221 corresponds to the upper limit position, and the second limit block 222 corresponds to the lower limit position; as shown in FIG. Fig.10 As shown, the first limit block 221 can conflict with the first stopper 223 to prevent the shelf body 100 from rising; Fig.11 As shown, the second limiting block 222 can conflict with the second stopping member 224 to prevent the shelf body 100 from descending.

[0094] In this embodiment, the motor 200 drives the shelf body 100 to rise and fall through the pull rope 220, so that the user can automatically adjust the height of the shelf body 100 through the motor 200 according to the actual height requirements to meet the storage requirements of different items. The highest position of the shelf body 100 rising is called the upper limit position, and the lowest position of the falling is called the lower limit position. By setting two limit blocks on the pull rope 220, the lifting and lowering position of the shelf body 100 is limited. Among them, when the shelf moves to the upper limit position, the first limit block 221 conflicts with the first stopper 223, thereby preventing the shelf body 100 from continuing to rise; when the shelf moves to the lower limit position, the second limit block 222 conflicts with the second stopper 224, thereby preventing the shelf body 100 from continuing to fall. In this way, the shelf body 100 can be prevented from excessively rising and falling, which is conducive to protecting the safety of the shelf and the items placed thereon.

[0095] Optionally, the slide rail 110 is arranged vertically, and a roller assembly is provided above the slide rail 110 ; the first end of the pull rope 220 is connected to the motor 200 , and the second end of the pull rope 220 extends downward around the roller assembly and is connected to the shelf body 100 .

[0096] In this embodiment, the moving trajectory of the pull rope 220 is optimized by providing a roller assembly, and the friction can be reduced by the roller assembly, so that the pull rope 220 is smoother when pulling the shelf body 100 up and down, and the stability of the lifting is further improved.

[0097] Optionally, the first limit block 221 and the second limit block 222 are disposed at the portion of the pull rope 220 between the roller assembly and the slide rail 110, and the first limit block 221 is located above the second limit block 222. In this way, the position layout of the two limit blocks is conducive to making the structure of the entire drive mechanism more compact and reducing the volume of the shelf.

[0098] Optionally, the roller assembly includes a roller body 130 and a mounting bracket 140. The mounting bracket 140 is used to mount the roller body 130, and the mounting bracket 140 serves as a first stopper 223; Fig.10 As shown, when the shelf body 100 moves to the upper limit position, the first limit block 221 conflicts with the mounting bracket 140 .

[0099] In this embodiment, the mounting bracket 140 is not only used to mount the roller body 130, but also serves as the first stopper 223. In this way, the mounting bracket 140 is fully utilized, which can not only make the roller body 130 roll smoothly, but also form a limit function. In this way, there is no need to set an additional structural member as the first stopper 223, which reduces the manufacturing and assembly costs.

[0100] Optionally, the upper end of the slide rail 110 serves as the second stopper 224. Fig.11 As shown, when the shelf body 100 moves to the lower limit position, the second limit block 222 abuts against the upper end of the slide rail 110 .

[0101] In this embodiment, the slide rail 110 is not only used as a sliding rail for the shelf body 100, but also used as a second stopper 224. In this way, the slide rail 110 is fully utilized, which can not only make the shelf body 100 roll smoothly, but also form a limit function. In this way, there is no need to set an additional structural member as the second stopper 224, which reduces the manufacturing and assembly costs.

[0102] Optionally, a slider 120 is provided on the side of the shelf body 100, and the slider 120 can form a sliding fit connection with the slide rail 110, so that the shelf body 100 slides along the slide rail 110. In this way, the sliding fit connection between the slider 120 and the slide rail 110 ensures the stability of the shelf body 100 during the lifting process.

[0103] Optionally, the two slide rails 110 are arranged in parallel, and the shelf body 100 is respectively connected to the two slide rails 110 through two sliders 120. In this way, the shelf body 100 is lifted and lowered along the two slide rails 110 more stably.

[0104] Exemplarily, the shelf body 100 is constructed as a rectangular plate, the front of the shelf body 100 faces the door of the refrigerator, and a slider 120 is respectively provided on the left and right sides of the rear of the shelf body 100. The two sliders 120 are respectively connected to the two slide rails 110, so that the shelf body 100 can be lifted and lowered along the two slide rails 110.

[0105] Optionally, the second end of the pull rope 220 is fixedly connected to the slider 120. In this way, when the motor 200 adjusts the position of the pull rope 220, the pull rope 220 directly drives the shelf body 100 to rise and fall through the slider 120.

[0106] Alternatively, if Fig. 9 As shown, a movable pulley 150 is provided on the slider 120, and the movable pulley 150 is connected to the second end of the pull rope 220; the motor 200 drives the movable pulley 150 to move through the pull rope 220, and the movable pulley 150 drives the shelf body 100 to rise and fall through the slider 120.

[0107] In this embodiment, the second end of the pull rope 220 is connected to the slider 120 through the movable pulley 150. In this way, when the motor 200 adjusts the position of the pull rope 220, the movable pulley 150 moves along the pull rope 220, thereby driving the shelf body 100 to rise and fall. In addition, under the labor-saving characteristic of the movable pulley 150, the motor 200 can drive the movement of the shelf body 100 with a smaller driving force, which is conducive to reducing the torque of the motor 200.

[0108] An embodiment of the present disclosure also provides a refrigerator, comprising the shelf described in any of the above embodiments.

[0109] Optionally, the refrigerator further includes a box body, and the shelf is disposed in the box body; and the slide rail 110 is vertically arranged on the inner wall of the box body.

[0110] In this embodiment, the automatic lifting and lowering adjustment of the shelf is realized by the cooperation of the motor 200 and the pull rope 220, and the user can adjust the height of the shelf according to the storage requirements. In addition, by setting two limit blocks on the pull rope 220, the shelf body 100 can be prevented from being excessively lifted or lowered. In this way, the space inside the refrigerator is effectively utilized, and the use of the refrigerator is more intelligent, which improves the convenience of use.

[0111] Combination Figure 1-18 As shown, the fourth embodiment of the present application provides a shelf, including a shelf body 100, a sliding mechanism and a driving mechanism. The sliding mechanism includes a slide rail 110, along which the shelf body 100 can slide; the driving mechanism includes a motor 200, a gear assembly and a pull rope assembly; Fig.12As shown, the gear set includes an intermediate gear 300 and an output gear 310 that are meshed with each other. The motor 200 drives the output gear 310 to rotate through the intermediate gear 300. An output shaft 312 is provided at the center of the output gear 310. The output shaft 312 drives the shelf body 100 to slide through the pull rope assembly. Fig.13 As shown, the gear teeth of the output gear 310 include incomplete teeth 311 , and when the intermediate gear 300 rotates forward or reversely until it contacts the incomplete teeth 311 , the output gear 310 cannot rotate, thereby limiting the sliding position of the shelf body 100 .

[0112] In this embodiment, the motor 200 drives the output gear 310 to rotate through the intermediate gear 300, and when the output gear 310 rotates, it drives the output shaft 312 to rotate synchronously, and when the output shaft 312 rotates, it drives the shelf body 100 to slide through the pull rope assembly. In this way, the user can automatically adjust the position of the shelf body 100 through the motor 200 according to the actual position requirements to meet the storage requirements of different items. In addition, under the action of the incomplete teeth 311, when the intermediate gear 300 rotates forward or reverses to contact the incomplete teeth 311, the two cannot continue to mesh, so that the power transmission is interrupted. At this time, the output gear 310 cannot rotate, thereby effectively limiting the sliding position of the shelf body 100 and preventing the shelf body 100 from excessive movement.

[0113] Optionally, the shelf body 100 slides up and down along the slide rail 110, and the shelf body 100 has an upper limit position and a lower limit position; and when the intermediate gear 300 rotates forward and contacts with the incomplete teeth 311, the shelf body 100 moves upward to the upper limit position; when the intermediate gear 300 rotates reversely and contacts with the incomplete teeth 311, the shelf body 100 moves downward to the lower limit position.

[0114] In this embodiment, the highest position of the shelf body 100 when it rises is called the upper limit position, and the lowest position when it falls is called the lower limit position. If the forward rotation is clockwise, the reverse rotation is counterclockwise, and if the forward rotation is counterclockwise, the reverse rotation is clockwise. In this way, by preventing the shelf body 100 from being excessively raised or lowered, it is beneficial to protect the safety of the shelf and the items placed thereon.

[0115] For example, when the intermediate gear 300 rotates forward, the shelf body 100 moves upward, and when the intermediate gear 300 rotates forward to contact the incomplete teeth 311, the power transmission is interrupted, and the shelf body 100 cannot move upward further and reaches the upper limit position. At this time, the motor 200 can only drive the intermediate gear 300 to rotate reversely.

[0116] In another example, when the intermediate gear 300 rotates in reverse, the rack body 100 moves downward, and when the intermediate gear 300 rotates in reverse until it contacts the incomplete teeth 311, the power transmission is interrupted, and the rack body 100 cannot move downward further and reaches the lower limit position. At this time, the motor 200 can only drive the intermediate gear 300 to rotate forward.

[0117] Optionally, the gear set further includes a worm 320. The worm 320 is disposed on the drive shaft of the motor 200, and the worm 320 is meshed with the intermediate gear 300. In this way, the power of the motor 200 is transmitted to the intermediate gear 300 through the worm 320. The transmission of the worm 320 usually has a larger transmission ratio and better stability.

[0118] Optionally, the intermediate gear 300 includes a first gear 301 and a second gear 302 , wherein a first side of the first gear 301 is meshed with the worm 320 ; a first side of the second gear 302 is meshed with the first gear 301 , and a second side thereof is meshed with the output gear 310 .

[0119] In this embodiment, since the intermediate gear 300 is composed of two gears, the number of teeth of the two gears can be adjusted respectively to change the transmission ratio. In this way, the transmission system can adjust the speed and torque of the output gear 310 as needed to meet different application requirements.

[0120] Optionally, the intermediate gear 300 further includes a third gear 303. The second side of the second gear 302 is meshed with the first side of the third gear 303, and the second side of the third gear 303 is meshed with the output gear 310. Fig.12 and Fig.14 As shown, the intermediate gear 300 is composed of three gears, which is conducive to dispersing the load during the transmission process and reducing the force on a single gear. In addition, it is conducive to reducing the impact and vibration during the transmission process and making the transmission more stable. Here, Fig.12 The front side of the intermediate gear 300 is shown. Fig.13 The reverse side of the intermediate gear 300 is shown.

[0121] Optionally, the number of the incomplete teeth 311 is one. Here, only one incomplete tooth 311 is provided to meet the position limiting requirement, and compared with providing a plurality of incomplete teeth 311, it is beneficial to ensure the travel of the shelf body 100.

[0122] Alternatively, if Figure 1 As shown, the pull rope assembly includes a wire reel 210 and a pull rope 220. The wire reel 210 is disposed on an output shaft 312, and the output shaft 312 can drive the wire reel 210 to rotate; the wire reel 210 is connected to the shelf body 100 through the pull rope 220, and the wire reel 210 can wind the pull rope 220 when rotating, thereby driving the shelf body 100 to slide along the slide rail 110. Here, the detailed structure of the pull rope assembly is detailed in the first embodiment above, and will not be repeated here.

[0123] Alternatively, if Figure 5As shown, the pull rope assembly includes a pull rope gear 230 and a pull rope rack 231. The pull rope gear 230 is arranged on the output shaft 312, and the output shaft 312 can drive the pull rope gear 230 to rotate; the pull rope rack 231 is meshed and connected to the pull rope gear 230; the pull rope rack 231 is connected to the shelf body 100 through the pull rope 220, and the pull rope rack 231 adjusts the position of the pull rope 220 when it moves, thereby driving the shelf body 100 to slide along the slide rail 110. Here, the detailed structure of the pull rope assembly is detailed in the second embodiment above, and will not be repeated.

[0124] An embodiment of the present disclosure also provides a refrigerator, comprising the shelf described in any of the above embodiments.

[0125] Optionally, the refrigerator further includes a box body, and the shelf is disposed in the box body; and the slide rail 110 is vertically arranged on the inner wall of the box body.

[0126] In this embodiment, the automatic lifting and lowering adjustment of the shelf is realized by the cooperation of the motor 200 and the pull rope assembly, and the user can adjust the height of the shelf according to the storage requirements. In addition, by providing the incomplete teeth 311 on the output gear 310, the shelf body 100 can be prevented from excessive movement. In this way, the space inside the refrigerator is effectively utilized, and the use of the refrigerator is more intelligent, which improves the convenience of use.

[0127] Combination Figure 1-18 As shown, the fifth embodiment of the present application provides a shelf, including a shelf body 100, a sliding mechanism, a driving mechanism and a limiting mechanism. The sliding mechanism includes a slide rail 110, along which the shelf body 100 can slide; the driving mechanism includes a motor 200, a gear assembly and a pull rope assembly; the gear assembly includes an output gear 310, and the motor 200 is used to drive the output gear 310 to rotate, and the output gear 310 has a trigger position; Fig.16 As shown, an output shaft 312 is provided at the center of the output gear 310, and the output shaft 312 drives the shelf body 100 to slide through a pull rope assembly; the limiting mechanism includes a micro switch 400 and a controller, and the micro switch 400 and the motor 200 are both electrically connected to the controller; the micro switch 400 is linked with the output gear 310, and the micro switch 400 is triggered when the output gear 310 rotates forward or reverses to a trigger position; when the controller receives a trigger signal from the micro switch 400, the motor 200 is controlled to stop.

[0128] In this embodiment, the motor 200 drives the output gear 310 to rotate, and when the output gear 310 rotates, the output shaft 312 is driven to rotate synchronously, and when the output shaft 312 rotates, the shelf body 100 is driven to slide through the pull rope assembly. In this way, the user can automatically adjust the position of the shelf body 100 through the motor 200 according to the actual position requirements to meet the storage requirements of different items. In addition, under the action of the micro switch 400, when the output gear 310 rotates to the trigger position, the micro switch 400 is triggered, and the controller controls the motor 200 to stop when receiving the trigger signal of the micro switch 400. At this time, the output gear 310 cannot rotate, thereby effectively limiting the sliding position of the shelf body 100 and preventing the shelf body 100 from excessive movement.

[0129] Optionally, the motor 200 drives the output gear 310 to rotate via the intermediate gear 300. Here, the detailed structure of the intermediate gear 300 is described in the fourth embodiment above, and will not be described in detail.

[0130] Optionally, the number of the micro switch 400 is one.

[0131] In this embodiment, the use of a single micro switch 400 can simplify the design of the overall circuit. There is no need to consider the signal synchronization and coordination issues between multiple micro switches 400, which reduces the complexity of the circuit and potential failure points. In addition, the use of a single micro switch 400 helps to reduce the production cost of the rack.

[0132] Optionally, the shelf body 100 slides up and down along the slide rail 110, and the shelf body 100 has an upper limit position and a lower limit position; and when the intermediate gear 300 rotates forward to the trigger position, the shelf body 100 moves upward to the upper limit position; when the intermediate gear 300 reverses to the trigger position, the shelf body 100 moves downward to the lower limit position.

[0133] In this embodiment, the highest position of the shelf body 100 when it rises is called the upper limit position, and the lowest position when it falls is called the lower limit position. If the forward rotation is clockwise, the reverse rotation is counterclockwise, and if the forward rotation is counterclockwise, the reverse rotation is clockwise. In this way, by preventing the shelf body 100 from being excessively raised or lowered, it is beneficial to protect the safety of the shelf and the items placed thereon.

[0134] For example, when the output gear 310 rotates forward, the shelf body 100 moves upward, and when the output gear 310 rotates forward to the trigger position, the micro switch 400 is triggered, and then the controller controls the motor 200 to stop, and the shelf body 100 cannot continue to move upward and reaches the upper limit position. At this time, the motor 200 can only drive the output gear 310 to rotate reversely.

[0135] In another example, when the output gear 310 is reversed, the shelf body 100 moves downward, and when it is reversed to the trigger position, the micro switch 400 is triggered, and then the controller controls the motor 200 to stop, and the shelf body 100 cannot move downward further and reaches the lower limit position. At this time, the motor 200 can only drive the output gear 310 to rotate forward.

[0136] Alternatively, if Fig.16 As shown, the end surface of the output gear 310 is concave to form a web 313, and the limiting mechanism also includes a limiting groove 314, which is opened on the side wall of the web 313; the micro switch 400 includes a limiting member 411, and the trigger position corresponds to the limiting member 411 moving into the limiting groove 314.

[0137] In this embodiment, the cooperation between the limit groove 314 and the limit member 411 has stable mechanical characteristics, ensuring that when the output gear 310 rotates to the trigger position, the limit member 411 can accurately move into the limit groove 314, thereby triggering the micro switch 400.

[0138] Optionally, the micro switch 400 further includes a switch body. The switch body includes a first arm 410, which is located on one side of the web 313; a stopper 411 is provided on the side of the first arm 410 facing the web 313, and the stopper 411 is always in contact with the side wall of the web 313 when the output gear 310 rotates.

[0139] In this embodiment, as the output gear 310 rotates, the side wall of the web 313 is in continuous contact with the stopper 411. In addition, since the side wall of the web 313 is provided with a stopper groove 314, when the output gear 310 rotates to the trigger position, the stopper 411 moves into the stopper groove 314, thereby triggering the action of the micro switch 400. This stable triggering mechanism is conducive to avoiding the problem of false triggering caused by poor contact or shaking of the transmission system.

[0140] Optionally, the switch body further includes a rotating shaft 430 and a second arm 420. Fig.15 As shown, the first arm 410 is arranged on the side of the rotating shaft 430; the second arm 420 is arranged on the side of the rotating shaft 430, and a spring member 440 is provided at the end of the second arm 420; the spring member 440 provides elastic force to the rotating shaft 430 through the second arm 420, and the elastic force drives the limiting member 411 to contact the side wall of the web 313 through the first arm 410.

[0141] In this embodiment, the spring member 440 sequentially provides elastic force to the stopper 411 through the second arm 420, the rotating shaft 430, and the first arm 410. This elastic force ensures that the stopper 411 can always maintain contact with the side wall of the web 313. Fig.17As shown in the partial cross-sectional view of , when the limiting member 411 does not enter the limiting groove 314, the limiting member 411 contacts the side wall of the web 313, and the micro switch 400 is not triggered. And under the action of elastic force, when the output gear 310 shakes or is disturbed by the outside, the spring member 440 can quickly restore the limiting member 411 to the position in contact with the side wall of the web 313, thereby achieving stable and continuous contact.

[0142] For example, when the output gear 310 rotates forward, the shelf body 100 moves upward. Moreover, after the shelf body 100 moves to the upper limit position, if the motor 200 drives the output gear 310 to rotate reversely, the limiter 411 moves out of the limiter slot 314, and the limiter 411 continues to contact the side wall of the web 313 due to the elastic force.

[0143] In another exemplary embodiment, the shelf body 100 moves downward when the output gear 310 rotates reversely. Moreover, after the shelf body 100 moves to the lower limit position, if the motor 200 drives the output gear 310 to rotate forward, the limit member 411 moves out of the limit slot 314, and the limit member 411 continues to contact the side wall of the web 313 due to the elastic force.

[0144] Alternatively, if Fig.15 As shown, the first support arm 410 and the second support arm 420 are arranged in a "7" shape. In this way, the layout of the two support arms is relatively compact, and it is beneficial to the elastic force transmission of the spring member 440.

[0145] Optionally, the micro switch 400 further includes a trigger member 412 and a receiving member 413. The trigger member 412 is disposed at the end of the first arm 410; the receiving member 413 is disposed at one side of the trigger member 412, and the micro switch 400 is triggered when the receiving member 413 is abutted; and when the limiting member 411 moves into the limiting groove 314, the trigger member 412 moves synchronously and abuts against the receiving member 413.

[0146] In this embodiment, the limiting member 411 is disposed at the middle of the first arm 410, the triggering member 412 is disposed at the end of the first arm 410, and the triggering member 412 corresponds to the receiving member 413. Fig.18 As shown in the partial cross-sectional view of , when the limiting member 411 enters the limiting groove 314, the triggering member 412 will move synchronously and conflict with the receiving member 413, thereby triggering the micro switch 400. Then, the micro switch 400 can quickly transmit the trigger signal to the controller.

[0147] An embodiment of the present disclosure also provides a refrigerator, comprising the shelf described in any of the above embodiments.

[0148] Optionally, the refrigerator further includes a box body, and the shelf is disposed in the box body; and the slide rail 110 is vertically arranged on the inner wall of the box body.

[0149] In this embodiment, the automatic lifting and lowering adjustment of the shelf is realized by the cooperation of the motor 200 and the pull rope assembly, and the user can adjust the height of the shelf according to the storage requirements. In addition, by setting the micro switch 400, the shelf body 100 can be prevented from excessive movement. In this way, the space inside the refrigerator is effectively utilized, and the use of the refrigerator is more intelligent, which improves the convenience of use.

[0150] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A shelf, characterized in that: include: Shelf body (100); The sliding mechanism comprises a slide rail (110), and the shelf body (100) can slide up and down along the slide rail (110); and the shelf body (100) has an upper limit position and a lower limit position; The driving mechanism comprises a motor (200) and a pull rope (220), wherein the motor (200) drives the shelf body (100) to rise and fall via the pull rope (220); a first limit block (221) and a second limit block (222) are arranged on the pull rope (220) at intervals, and a first stopper (223) and a second stopper (224) are arranged along the moving track of the pull rope (220); Furthermore, the first limit block (221) corresponds to the upper limit position, and the second limit block (222) corresponds to the lower limit position; the first limit block (221) can conflict with the first stopper (223) to prevent the shelf body (100) from rising; the second limit block (222) can conflict with the second stopper (224) to prevent the shelf body (100) from falling.

2. The shelf according to claim 1, characterized in that: The slide rail (110) is arranged vertically, and a roller assembly is provided above the slide rail (110); The first end of the pull rope (220) is connected to the motor (200), and the second end of the pull rope (220) extends downward around the roller assembly and is connected to the shelf body (100).

3. The shelf according to claim 2, characterized in that: The first limit block (221) and the second limit block (222) are arranged at a portion of the pull rope (220) located between the roller assembly and the slide rail (110), and the first limit block (221) is located above the second limit block (222).

4. The shelf according to claim 3, characterized in that: Roller assembly package: Roller body (130); The mounting bracket (140) is used to mount the roller body (130), and the mounting bracket (140) serves as a first stopper (223); when the shelf body (100) moves to the upper limit position, the first limit block (221) contacts the mounting bracket (140).

5. The shelf according to claim 3, characterized in that: The upper end of the slide rail (110) serves as a second stopper (224); when the shelf body (100) moves to the lower limit position, the second limit block (222) contacts the upper end of the slide rail (110).

6. The shelf according to any one of claims 2 to 5, characterized in that: A sliding block (120) is provided on the side of the shelf body (100), and the sliding block (120) can form a sliding fit connection with the slide rail (110) so that the shelf body (100) slides along the slide rail (110).

7. The shelf according to claim 6, characterized in that: A movable pulley (150) is provided on the slider (120), and the movable pulley (150) is connected to the second end of the pull rope (220); the motor (200) drives the movable pulley (150) to move through the pull rope (220), and then the movable pulley (150) drives the shelf body (100) to rise and fall through the slider (120).

8. The rack according to claim 6, characterized in that: The two slide rails (110) are arranged in parallel, and the shelf body (100) is respectively connected to the two slide rails (110) via two sliding blocks (120).

9. A refrigerator, characterized in that: Comprising the rack according to any one of claims 1 to 8.

10. The refrigerator according to claim 9, characterized in that: Also includes: The box body has a shelf arranged inside the box body; and the slide rail (110) is vertically arranged on the inner wall of the box body.

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