Rack and refrigerator

Abstract

The utility model relates to the technical field of refrigerators, and discloses a rack which comprises a rack body, a rack body, a lifting device and a lifting device. The driving mechanism comprises a motor which is used for driving the shelf body to ascend and descend; the anti-toppling mechanism comprises a ray assembly and a controller, the ray assembly is arranged on the shelf body, and the ray assembly and the motor are electrically connected to the controller; the ray assembly comprises a transmitting end and a receiving end, the transmitting end is located below the shelf body and used for transmitting detection light, and the receiving end is used for receiving the detection light; moreover, in the descending process of the shelf body, under the condition that the receiving end does not receive signals due to the fact that the detection light is blocked by the articles, the controller controls the motor to stop. Thus, in the descending process of the shelf body, the shelf body can be prevented from colliding with the blocking objects below the shelf body, the shelf body is prevented from inclining, and then the placed objects are effectively prevented from toppling over. 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] The related art discloses a refrigerator, in which a storage box is provided with a shelf, and the shelf is arranged to be liftable.

[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] When the shelf is descending, if there is an obstructing object below, the shelf will collide with the obstructing object below and then tilt.

[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 the shelf tilting due to collision with blocking objects when the shelf is lowered.

[0009] In some embodiments, the rack comprises:

[0010] The shelf body can be raised or lowered;

[0011] The driving mechanism includes a motor, and the motor is used to drive the shelf body to rise and fall;

[0012] The anti-dumping mechanism comprises a ray assembly and a controller, wherein the ray assembly is arranged on the shelf body, and the ray assembly and the motor are electrically connected to the controller; the ray assembly comprises a transmitting end and a receiving end, wherein the transmitting end is located below the shelf body and is used to emit detection light, and the receiving end is used to receive the detection light;

[0013] Furthermore, when the shelf body is in the process of descending and the detection light is blocked by an object so that the receiving end does not receive a signal, the controller controls the motor to stop.

[0014] Optionally, a plurality of shelf bodies are arranged in sequence from top to bottom, and each shelf body is provided with a ray assembly;

[0015] Furthermore, when a shelf body is rising and the receiving end of the adjacent shelf body above it does not receive a signal, the controller controls the corresponding motor to stop.

[0016] Optionally, the anti-dumping mechanism further comprises:

[0017] A reflective component is disposed on the shelf body and includes a first mirror surface and a second mirror surface; the first mirror surface and the second mirror surface are both located below the shelf body and arranged opposite to each other;

[0018] The transmitting end transmits the detection light toward any mirror surface at an inclined angle so that the detection light is reflected between the two mirror surfaces; and the receiving end is located at any reflection point.

[0019] Optionally, the first mirror surface and the second mirror surface are parallel to each other.

[0020] Optionally, along the length direction of the first mirror, the transmitting end is arranged at one end of the first mirror, and the receiving end is arranged at the other end of the first mirror.

[0021] Optionally, opposite cantilevers are provided on both sides of the shelf body, and the opposite plate surfaces of the two cantilevers serve as the first mirror surface and the second mirror surface respectively.

[0022] Optionally, the detection light includes infrared light.

[0023] Optionally, the rack further comprises a mounting assembly, the mounting assembly comprising:

[0024] A slide rail is arranged along the lifting direction of the shelf body;

[0025] A slider, the shelf body is connected to the slide rail through the slider, and a movable pulley is provided on the slider;

[0026] The drive mechanism also includes:

[0027] The pull rope has a first end connected to the motor and a second end connected to the movable pulley; the motor drives the movable pulley to move through the pull rope, and then the movable pulley drives the shelf body to move up and down through the slider.

[0028] In some embodiments, the refrigerator includes the shelf.

[0029] Optionally, the refrigerator further comprises:

[0030] A fixed shelf is arranged above the shelf body, and a ray assembly is also arranged below the fixed shelf;

[0031] Furthermore, when the shelf body is rising and the receiving end of the fixed shelf does not receive a signal, the controller controls the motor to stop.

[0032] The rack and refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0033] The upper part of the shelf body is used to place items, and a ray assembly is arranged at the lower part of the shelf body. When the receiving end has a receiving signal, it means that the detection light is not blocked, that is, there is no blocking object below the shelf body, and the condition for descending is met. When the receiving end does not receive a signal, it means that the detection light is blocked, that is, there is a blocking object below the shelf body, and the condition for descending is not met. If the shelf is descending at this time, the controller controls the motor to stop. In this way, the shelf body can avoid colliding with the blocking objects below it during the descent process, prevent the shelf body from tilting, and effectively prevent the placed objects from tipping over.

[0034] 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

[0035] 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:

[0036] Figure 1 is a schematic diagram of a winding wheel of a rack according to a first embodiment of the present disclosure;

[0037] Figure 2 is a schematic diagram of a gear and a rack of a first embodiment of a shelf provided by an embodiment of the present disclosure;

[0038] Figure 3 is a schematic structural diagram of a movable pulley provided in an embodiment of the present disclosure;

[0039] Figure 4 is a schematic diagram of a driving structure of a rack according to a second embodiment of the present disclosure;

[0040] Figure 5 is a schematic diagram of a driving structure of a shelf according to a third embodiment of the present disclosure;

[0041] Figure 6 is a schematic diagram of a ray assembly of a fourth embodiment provided by an embodiment of the present disclosure;

[0042] Figure 7 is a schematic diagram of the layout of the detection light provided by an embodiment of the present disclosure;

[0043] Figure 8 is a schematic diagram of the layout of multiple shelf bodies provided in an embodiment of the present disclosure;

[0044] Fig. 9 is a schematic diagram of a magnet of a shelf according to a fifth embodiment of the present disclosure;

[0045] Fig.10 is a schematic diagram of a rack tilted downward provided by an embodiment of the present disclosure;

[0046] Fig.11 is a schematic diagram of a micro switch of a shelf according to a sixth embodiment of the present disclosure;

[0047] Fig.12 is a schematic diagram of a shelf provided by an embodiment of the present disclosure tilting upward;

[0048] Fig.13 It is a schematic diagram of the layout of two groups of micro switches provided in an embodiment of the present disclosure.

[0049] Reference numerals:

[0050] 100: shelf body; 110: cantilever; 111: positive hook; 112: reverse hook; 113: first clamping shaft; 114: second clamping shaft; 120: mounting assembly; 121: slide rail; 122: slider; 130: movable pulley; 140: motor; 141: first motor; 142: second motor; 150: pull rope; 151: first pull rope; 152: second pull rope; 160: winding wheel; 161: first winding wheel; 162: second winding wheel; 170: gear; 171: first gear; 172: second gear; 180: rack; 181: first rack; 182: second rack;

[0051] 200: ray assembly; 210: transmitting end; 220: receiving end; 230: reflecting assembly; 231: first mirror; 232: second mirror;

[0052] 300: magnet; 310: detection sensor;

[0053] 400: micro switch; 410: contact piece; 420: trigger piece. 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 1-3 As shown, the first embodiment of the present application provides a shelf, including a shelf body 100, an installation assembly 120, a first driving structure and a second driving structure. The installation assembly 120 includes a slide rail 121, and the shelf body 100 can slide up and down along the slide rail 121; the first driving mechanism includes a first motor 141 and a first pull rope 151; the first motor 141 is connected to the first side of the shelf body 100 through the first pull rope 151, and the first motor 141 is used to drive the first pull rope 151 to move; the second driving mechanism includes a second motor 142 and a second pull rope 152; the second motor 142 is connected to the second side of the shelf body 100 through the second pull rope 152, and the second motor 142 is used to drive the second pull rope 152 to move; and the first pull rope 151 and the second pull rope 152 move synchronously to drive the shelf body 100 to rise and fall.

[0063] In this embodiment, two driving structures are used to drive the shelf body 100 to rise and fall, wherein the first motor 141 pulls the first side of the shelf body 100 through the first pull rope 151, and the second motor 142 pulls the second side of the shelf body 100 through the second pull rope 152. In this way, when the first pull rope 151 and the second pull rope 152 move upward synchronously, the shelf body 100 is pulled up along the slide rail 121; when the first pull rope 151 and the second pull rope 152 move downward synchronously, the shelf body 100 is lowered along the slide rail 121 under the action of gravity. In this way, the user can automatically adjust the height of the shelf body 100 through the two driving mechanisms according to the actual height requirements to meet the storage requirements of different items.

[0064] Alternatively, if Figure 1 As shown, the first driving mechanism further includes a first winding wheel 161. The first end of the first pull rope 151 is connected to the first winding wheel 161, and the second end of the first pull rope 151 is connected to the shelf body 100; the first motor 141 can drive the first winding wheel 161 to rotate to wind or release the first pull rope 151.

[0065] In this embodiment, the driving shaft of the first motor 141 is connected to the first wire reel 161 through the transmission gear 170 group, thereby driving the wire reel 160 to rotate. When the first wire reel 161 rotates, it winds or releases the first pull rope 151. When the first wire reel 161 winds the first pull rope 151, the first pull rope 151 pulls the shelf body 100 to slide upward along the slide rail 121; when the first wire reel 161 releases the first pull rope 151, the shelf body 100 slides downward along the slide rail 121 under the action of gravity, thereby realizing the rise and fall of the shelf body 100.

[0066] Alternatively, if Figure 2 As shown, the first driving mechanism further includes a first gear 171 and a first rack 181. The first motor 141 is used to drive the first gear 171 to rotate; the first rack 181 is meshed with the first gear 171, and the first end of the first pull rope 151 is connected to the first rack 181, and the second end of the first pull rope 151 is connected to the shelf body 100; and when the first gear 171 rotates, the position of the first pull rope 151 is adjusted through the first rack 181.

[0067] In this embodiment, the driving shaft of the first motor 141 is connected to the first gear 171 through the transmission gear 170 group, thereby driving the first gear 171 to rotate. In addition, when the first gear 171 rotates, it drives the first rack 181 to move, and when the first rack 181 moves, the position of the first pull rope 151 is adjusted. When the first rack 181 drives the first pull rope 151 to move upward, the first pull rope 151 pulls the shelf body 100 to slide upward along the slide rail 121; when the first rack 181 drives the first pull rope 151 to move downward, the shelf body 100 slides downward along the slide rail 121 under the action of gravity, thereby realizing the rise and fall of the shelf body 100.

[0068] Optionally, the first rack 181 is located above the shelf body 100 , and the first rack 181 is arranged parallel to the slide rail 121 .

[0069] In this embodiment, the upper end of the first rack 181 is meshed with the first gear 171, and the lower end of the first rack 181 is connected to the upper end of the first pull rope 151. When the first rack 181 moves toward its upper end, the shelf body 100 rises; when the first rack 181 moves toward its lower end, the shelf body 100 falls.

[0070] Alternatively, if Figure 1 As shown, the second driving mechanism further includes a second winding wheel 162. The first end of the second pull rope 152 is connected to the second winding wheel 162, and the second end of the second pull rope 152 is connected to the shelf body 100; the second motor 142 can drive the second winding wheel 162 to rotate to wind or release the second pull rope 152.

[0071] In this embodiment, the driving shaft of the second motor 142 is connected to the second wire reel 162 through the transmission gear 170 group, thereby driving the wire reel 160 to rotate. When the second wire reel 162 rotates, it winds or releases the second pull rope 152. When the second wire reel 162 winds the second pull rope 152, the pull rope 150 pulls the shelf body 100 to slide upward along the slide rail 121; when the second wire reel 162 releases the second pull rope 152, the shelf body 100 slides downward along the slide rail 121 under the action of gravity, thereby realizing the rise and fall of the shelf body 100.

[0072] Alternatively, if Figure 2 As shown, the second driving mechanism further includes a second gear 172 and a second rack 180. The second motor 142 is used to drive the second gear 172 to rotate; the second rack 180 is engaged with the second gear 172, and the first end of the second pull rope 152 is connected to the second rack 180, and the second end of the second pull rope 152 is connected to the shelf body 100; and when the second gear 172 rotates, the position of the second pull rope 152 is adjusted by the second rack 180.

[0073] In this embodiment, the driving shaft of the second motor 142 is connected to the second gear 172 through the transmission gear 170 group, thereby driving the second gear 172 to rotate. When the second gear 172 rotates, it drives the second rack 180 to move, and when the second rack 180 moves, the position of the second pull rope 152 is adjusted. When the second rack 180 drives the second pull rope 152 to move upward, the second pull rope 152 pulls the shelf body 100 to slide upward along the slide rail 121; when the second rack 180 drives the second pull rope 152 to move downward, the shelf body 100 slides downward along the slide rail 121 under the action of gravity, thereby realizing the rise and fall of the shelf body 100.

[0074] Optionally, the second rack 180 is located above the shelf body 100 , and the second rack 180 is arranged parallel to the slide rail 121 .

[0075] In this embodiment, the upper end of the second rack 180 is meshed with the second gear 172, and the lower end of the second rack 180 is connected to the upper end of the second pull rope 152. When the second rack 180 moves toward its upper end, the shelf body 100 rises; when the second rack 180 moves toward its lower end, the shelf body 100 falls.

[0076] Alternatively, if Figure 3 As shown, the installation assembly 120 also includes a slider 122 , which can form a sliding fit connection with the slide rail 121 ; and the two slide rails 121 are arranged in parallel, and both sides of the shelf are lifted and lowered along the corresponding slide rails 121 through the slider 122 .

[0077] In this embodiment, the parallel slide rails 121 ensure the stability of the rack during the lifting process, avoiding safety problems caused by excessive tilting or shaking. In addition, both sides of the rack are lifted and lowered along the slide rails 121 through the sliders 122, forming a double-sided support structure, so that the rack can remain stable even when carrying heavy objects.

[0078] Optionally, movable pulleys 130 are provided on both sliders 122, wherein the first pull rope 151 is connected to the first side of the shelf body 100 through a movable pulley 130, and the second pull rope 152 is connected to the second side of the shelf body 100 through another movable pulley 130; and, the first motor 141 drives the corresponding movable pulley 130 to move through the first pull rope 151, and the second motor 142 drives the corresponding movable pulley 130 to move through the second pull rope 152, and then the two movable pulleys 130 drive the shelf body 100 to rise and fall through the corresponding sliders 122.

[0079] In this embodiment, the first pull rope 151 and the second pull rope 152 are both connected to the shelf body 100 through a movable pulley 130. When the first motor 141 adjusts the position of the first pull rope 151, the corresponding movable pulley 130 moves along the first pull rope 151; when the second motor 142 adjusts the position of the second pull rope 152, the corresponding movable pulley 130 moves along the second pull rope 152. When the two movable pulleys 130 move synchronously, the corresponding sliders 122 drive the shelf body 100 to rise and fall. In this way, under the labor-saving characteristics of the movable pulley 130, the two motors can drive the movement of the shelf body 100 with a smaller driving force, which is conducive to reducing the torque of the two motors.

[0080] It should be noted that the first drive structure and the second drive structure can both adopt the winding wheel structure or the gear rack structure, or one can adopt the winding wheel structure and the other can adopt the gear rack structure. The above situations should be covered within the protection scope of the present utility model.

[0081] An embodiment of the present disclosure also provides a refrigerator, comprising the shelf described in any of the above embodiments.

[0082] In this embodiment, the refrigerator has a box body, and the shelf is arranged in the box body; and the slide rail 121 is vertically arranged on the inner wall of the box body. The automatic lifting and lowering adjustment of the shelf is realized through the cooperation of the two driving structures, and the user can adjust the height of the shelf according to the storage needs. 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.

[0083] The second embodiment of the present application provides a shelf, such as Figure 4As shown, a motor 140 and a winding wheel 160 are used to drive the shelf body 100 to rise and fall through the pull rope 150. The motor 140 drives the winding wheel 160 to rotate, and the winding wheel 160 is connected to both sides of the shelf body 100 through two pull ropes 150. When the winding wheel 160 winds the pull rope 150, the two pull ropes 150 pull the two sides of the shelf body 100 to slide upward along the slide rail 121; when the winding wheel 160 releases the pull rope 150, the shelf body 100 slides downward along the slide rail 121 under the action of gravity, thereby realizing the rise and fall of the shelf body 100.

[0084] The third embodiment of the present application provides a shelf, such as Figure 5 As shown, a motor 140 and a gear 170 are used to drive the shelf body 100 to rise and fall through the pull rope 150. Among them, two racks 180 are respectively meshed with the two sides of the gear 170; and the first ends of the two pull ropes 150 are respectively connected to the two racks 180, and the second ends of the two pull ropes 150 are respectively connected to the two sides of the shelf body 100. When the two racks 180 drive the corresponding pull ropes 150 to move upward, the two pull ropes 150 pull the two sides of the shelf body 100 to slide upward along the slide rail 121; when the two racks 180 drive the corresponding pull ropes 150 to move downward, the shelf body 100 slides downward along the slide rail 121 under the action of gravity, thereby realizing the rise and fall of the shelf body 100.

[0085] Combination Figure 6-8 As shown, the fourth embodiment of the present application provides a shelf, including a shelf body 100, a driving mechanism and an anti-dumping mechanism. The shelf body 100 can be raised and lowered; the driving mechanism includes a motor 140, and the motor 140 is used to drive the shelf body 100 to rise and fall; the anti-dumping mechanism includes a ray assembly 200 and a controller, the ray assembly 200 is arranged on the shelf body 100, and the ray assembly 200 and the motor 140 are both electrically connected to the controller; the ray assembly 200 includes a transmitting end 210 and a receiving end 220, wherein the transmitting end 210 is located below the shelf body 100 and is used to emit detection light, and the receiving end 220 is used to receive the detection light; and, in the process of the shelf body 100 descending, and the detection light is blocked by an object so that the receiving end 220 does not receive a signal, the controller controls the motor 140 to stop.

[0086] In the present embodiment, the upper part of the shelf body 100 is used to place items, and the ray assembly 200 is arranged below the shelf body 100. When the receiving end 220 has a receiving signal, it means that the detection light is not blocked, that is, there is no blocking object below the shelf body 100, and the condition for descending is met. When the receiving end 220 does not receive a signal, it means that the detection light is blocked, that is, there is a blocking object below the shelf body 100, and the condition for descending is not met. If the shelf is descending at this time, the controller controls the motor 140 to stop. In this way, the shelf body 100 can avoid colliding with the blocking objects below it during the descent process, prevent the shelf body 100 from tilting, and effectively prevent the placed objects from tipping over.

[0087] Alternatively, if Figure 8 As shown, a plurality of shelf bodies 100 are arranged in sequence from top to bottom, and each shelf body 100 is provided with a radiation assembly 200; and, when a shelf body 100 is rising, and the receiving end 220 of the adjacent shelf body 100 above it does not receive a signal, the controller controls the motor 140 to stop.

[0088] In the present embodiment, it is understandable that as long as each shelf body 100 is driven by a group of driving mechanisms alone, independent lifting can be achieved. In the case of placing items on a certain shelf body 100, if the shelf body 100 rises a long distance, it is possible that the items placed thereon collide with the shelf body 100 above it. During the rising process, if the receiving end 220 of the shelf body 100 above does not receive a signal, it means that the detection light is blocked by the placed items, and the controller controls the corresponding motor 140 to stop. In this way, it is possible to avoid the collision between the rising shelf body 100 and the adjacent shelf body 100 above it, thereby effectively preventing the placed items from tipping over.

[0089] Optionally, the anti-dumping mechanism further includes a reflection assembly 230. The reflection assembly 230 is disposed on the shelf body 100, and includes a first mirror 231 and a second mirror 232; the first mirror 231 and the second mirror 232 are both located below the shelf body 100 and arranged oppositely; the transmitting end 210 emits the detection light toward any mirror at an inclined angle so that the detection light is reflected between the two mirrors; and the receiving end 220 is located at any reflection point.

[0090] In this embodiment, the emitting end 210 emits the detection light toward any mirror surface and reflects between the two mirror surfaces, so that the detection light can form a relatively stable detection area (such as Figure 7The receiving end 220 is arranged at any reflection point, which can ensure that the receiving end 220 can stably receive the detection light. In this way, it is helpful to more accurately detect whether there is an obstructing object under the shelf body 100, thereby improving the detection accuracy.

[0091] Optionally, the first mirror surface 231 and the second mirror surface 232 are parallel to each other. In this way, the reflection between the parallel mirror surfaces can reduce the scattering and loss of the detection light, ensuring that the receiving end 220 can receive enough detection light.

[0092] Alternatively, if Figure 7 As shown, along the length direction of the first mirror 231 , the transmitting end 210 is disposed at one end of the first mirror 231 , and the receiving end 220 is disposed at the other end of the first mirror 231 .

[0093] In this embodiment, since the transmitting end 210 and the receiving end 220 are respectively located at two ends of the mirror, the distance of the detection light reflected between the two mirrors is longer, so that the detection light can cover a larger range, thereby expanding the detection range and improving the detection sensitivity.

[0094] Alternatively, if Figure 6 As shown, opposite cantilevers 110 are provided on both sides of the shelf body 100, and the opposite plate surfaces of the two cantilevers 110 are respectively used as the first mirror surface 231 and the second mirror surface 232. In this way, the plate surface of the cantilever 110 is directly used as the mirror surface of the reflective component 230, which not only saves additional materials but also simplifies the structure of the entire shelf.

[0095] Optionally, the detection light includes infrared light.

[0096] In this embodiment, the transmitting end 210 is an infrared generator, and the receiving end 220 is an infrared receiver. Infrared detection technology is relatively mature, and because the wavelength of infrared light is relatively long, it is not easily interfered by visible light or other electromagnetic waves. In this way, infrared light as a detection light can maintain high stability and accuracy in complex environments.

[0097] Optionally, the shelf further includes a mounting assembly 120, and the mounting assembly 120 includes a slide rail 121 and a slider 122. The slide rail 121 is arranged along the lifting direction of the shelf body 100, and the shelf body 100 is connected to the slide rail 121 through the slider 122, and a movable pulley 130 is provided on the slider 122. The driving mechanism further includes a pull rope 150, a first end of the pull rope 150 is connected to the motor 140, and a second end thereof is connected to the movable pulley 130; and the motor 140 drives the movable pulley 130 to move through the pull rope 150, and then the movable pulley 130 drives the shelf body 100 to lift and lower through the slider 122.

[0098] In this embodiment, the motor 140 can be connected to the first end of the pull rope 150 through a winding wheel structure, and can also be connected to the first end of the pull rope 150 through a gear rack structure. The implementation methods of the winding wheel structure and the gear rack structure are detailed in the first to third embodiments, and are not repeated here. In this way, when the motor 140 adjusts the position of the pull rope 150, the movable pulley 130 moves along the pull rope 150, thereby driving the shelf body 100 to rise and fall. In addition, under the labor-saving characteristics of the movable pulley 130, the motor 140 can drive the movement of the shelf body 100 with a smaller driving force, which is beneficial to reducing the torque of the motor 140.

[0099] An embodiment of the present disclosure also provides a refrigerator, comprising the shelf described in any of the above embodiments.

[0100] In this embodiment, the refrigerator has a box body, and the shelf is arranged in the box body; and the slide rail 121 is vertically arranged on the inner wall of the box body. The user can adjust the height of the shelf according to the storage needs, and under the action of the ray assembly 200, the shelf body 100 can be prevented from tilting during the lifting process, thereby effectively preventing the placed items from falling. 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.

[0101] Combination Fig. 9 and Fig.10 As shown, the fifth embodiment of the present application provides a shelf, including a shelf body 100 and an anti-dumping mechanism. The shelf body 100 is arranged on the mounting assembly 120; the anti-dumping mechanism includes a magnet 300, a detection sensor 310 and a controller; the magnet 300 is arranged on the shelf body 100, and the magnet 300 has a first magnetic field when the shelf body 100 is in place, and has a second magnetic field when the shelf body 100 is out of place; the detection sensor 310 is used to detect the change of the magnetic field of the magnet 300, and is electrically connected to the controller; and when the detection sensor 310 detects that the magnet 300 forms the second magnetic field, the controller determines that the shelf body 100 is out of place.

[0102] In the present embodiment, the shelf body 100 is installed on the mounting assembly 120, and being in position refers to the state that the shelf body 100 maintains a normal installation state, and being out of position refers to the state that the shelf body 100 becomes an abnormal installation state, such as tilting, overturning or falling relative to the normal installation position. Since the magnet 300 is arranged on the shelf body 100, if the shelf body 100 is out of position during use, the magnet 300 moves with the shelf body 100. At this time, the magnetic field of the magnet 300 changes synchronously, that is, from the first magnetic field to the second magnetic field. In addition, the detection sensor 310 transmits the magnetic field change signal to the controller, and the controller determines that the shelf body 100 is out of position. In this way, it can be timely learned when the shelf body 100 is out of position, so as to further operate the shelf.

[0103] Optionally, the mounting assembly 120 includes a slide rail 121 and a slider 122. The slide rail 121 is arranged vertically, and the slider 122 can be slidably connected with the slide rail 121; a cantilever 110 is provided on the side of the shelf body 100, and the cantilever 110 is connected to the slider 122, so that the shelf body 100 is lifted and lowered along the slide rail 121 through the slider 122; and being in position corresponds to the shelf body 100 remaining horizontal, and being out of position corresponds to the shelf body 100 becoming tilted.

[0104] In this embodiment, if Fig. 9 As shown, the shelf body 100 is normally installed on the slide rail 121 and remains horizontal to facilitate the placement of items. At this time, the shelf body 100 is in place. The shelf body 100 can be raised and lowered along the slide rail 121. If it tilts during the lifting process, the shelf body 100 will be out of position. Fig.10 As shown, in some possible situations, such as the first card shaft 113 is broken, or the assembly of the positive hook 111 and the first card shaft 113 is loose, the shelf body 100 is subjected to a downward force to cause it to tilt downward or even fall.

[0105] Optionally, the rack further includes a motor 140. The motor 140 is electrically connected to the controller and is used to drive the shelf body 100 to rise and fall; when the shelf body 100 is rising and falling and the controller determines that the shelf body 100 is tilted, the controller controls the motor 140 to stop.

[0106] In this embodiment, if the shelf body 100 continues to be raised or lowered when it is out of position, the placed items will topple over or even roll down. Therefore, when the controller determines that the shelf body 100 is tilted, the controller controls the motor 140 to stop. In this way, the placed items can be effectively prevented from toppling over or rolling down, and the stability of the lifting and lowering of the shelf body 100 can be ensured.

[0107] Optionally, the magnet 300 is disposed on the cantilever 110 ; the detection sensor 310 is disposed on the slider 122 , and the detection sensor 310 corresponds to the magnet 300 .

[0108] In this embodiment, since the shelf body 100 is connected to the slider 122 through the cantilever 110, the detection sensor 310 moves synchronously with the slider 122 during the lifting process of the shelf body 100. In addition, the cantilever 110 tilts synchronously when the shelf body 100 tilts. In this way, when the magnetic field of the magnet 300 changes, it will be quickly captured by the detection sensor 310, thereby instantly triggering the response of the controller.

[0109] Optionally, the magnet 300 includes a permanent magnet 300. The permanent magnet 300 can continuously generate a magnetic field without the need for an external power supply. In addition, the magnetic field strength of the permanent magnet 300 is relatively stable and will not change significantly due to slight changes in external factors (such as temperature, humidity, etc.). In this way, it is ensured that the detection sensor 310 can stably detect the magnetic field changes of the permanent magnet 300.

[0110] Optionally, the detection sensor 310 includes a Hall sensor. The Hall sensor has a high measurement accuracy, especially when measuring changes in magnetic fields. In this way, when the shelf body 100 is slightly tilted or misaligned, the Hall sensor can accurately detect the change in the magnetic field, thereby triggering the response of the controller in a timely manner.

[0111] Optionally, a movable pulley 130 is provided on the slider 122; the driving mechanism also includes a pull rope 150, a first end of which is connected to the motor 140, and a second end of which is connected to the movable pulley 130; and the motor 140 drives the movable pulley 130 to move through the pull rope 150, and then the movable pulley 130 drives the shelf body 100 to rise and fall through the slider 122.

[0112] In this embodiment, the motor 140 can be connected to the first end of the pull rope 150 through a winding wheel structure, and can also be connected to the first end of the pull rope 150 through a gear rack structure. The implementation methods of the winding wheel structure and the gear rack structure are detailed in the first to third embodiments, and are not repeated here. In this way, when the motor 140 adjusts the position of the pull rope 150, the movable pulley 130 moves along the pull rope 150, thereby driving the shelf body 100 to rise and fall. In addition, under the labor-saving characteristics of the movable pulley 130, the motor 140 can drive the movement of the shelf body 100 with a smaller driving force, which is beneficial to reducing the torque of the motor 140.

[0113] Optionally, the mounting assembly 120 includes a bracket, and the shelf body 100 is fixed on the bracket; and the shelf body 100 is kept horizontal when in position, and the shelf body 100 is tilted when out of position. The magnet 300 is arranged on the shelf body 100; the detection sensor 310 is arranged on the bracket, and the detection sensor 310 corresponds to the magnet 300.

[0114] In the present embodiment, the shelf body 100 is fixedly connected to the bracket and does not have a lifting function. When the shelf is used for a long time or the items carried are heavy, the connection between the shelf body 100 and the bracket may become loose. Under the action of the anti-dumping mechanism, once the shelf body 100 becomes loose and tilts, the magnetic field of the magnet 300 changes synchronously. The detection sensor 310 transmits the magnetic field change signal to the controller, and the controller determines that the shelf body 100 is out of position. In this way, it is timely known when the shelf body 100 is out of position, so as to fasten the shelf body 100 to the bracket. It can be seen that the anti-dumping mechanism of the present embodiment is applicable to shelves with and without lifting functions.

[0115] An embodiment of the present disclosure also provides a refrigerator, comprising the shelf described in any of the above embodiments.

[0116] In this embodiment, the refrigerator has a box body, the shelf is arranged in the box body, and the upper part of the shelf body 100 is used to place items. Moreover, once the shelf body 100 is out of position, the anti-dumping mechanism composed of the magnet 300 and the detection sensor 310 can be promptly informed, so as to further operate the shelf. In this way, it is beneficial to protect the safety of the items in the refrigerator and reduce unnecessary losses.

[0117] Combination Fig.11 and 12 As shown, the sixth embodiment of the present application provides a shelf, including a shelf body 100 and an anti-dumping mechanism. The shelf body 100 is arranged on the mounting assembly 120; the anti-dumping mechanism includes an electrically connected micro switch 400 and a controller; the micro switch 400 includes a contact member 410 and a trigger member 420, the contact member 410 is arranged on the shelf body 100, and the trigger member 420 is arranged on one side of the contact member 410; when the shelf body 100 is in place, the contact member 410 and the trigger member 420 are in conflict with each other to close the micro switch 400, and when the shelf body 100 is out of place, the contact member 410 and the trigger member 420 are separated to disconnect the micro switch 400; and when the micro switch 400 is disconnected, the controller determines that the shelf body 100 is out of place.

[0118] In this embodiment, the shelf body 100 is installed on the mounting assembly 120, and being in position means that the shelf body 100 maintains a normal installation state, and being out of position means that the shelf body 100 becomes an abnormal installation state, such as tilting, tipping over or falling relative to the normal installation position. Since the contact member 410 is arranged on the shelf body 100, if the shelf body 100 is out of position during use, the contact member 410 moves with the shelf body 100 and is separated from the trigger member 420. In addition, the micro switch 400 transmits the disconnection signal to the controller, and the controller determines that the shelf body 100 is out of position. In this way, it can be timely learned when the shelf body 100 is out of position, so as to further operate the shelf.

[0119] Optionally, the mounting assembly 120 includes a slide rail 121 and a slider 122. The slide rail 121 is arranged vertically, and the slider 122 can be slidably connected with the slide rail 121; a cantilever 110 is provided on the side of the shelf body 100, and the cantilever 110 is connected to the slider 122, so that the shelf body 100 is lifted and lowered along the slide rail 121 through the slider 122; and being in position corresponds to the shelf body 100 remaining horizontal, and being out of position corresponds to the shelf body 100 becoming tilted.

[0120] In this embodiment, if Fig.11 As shown, the shelf body 100 is normally installed on the slide rail 121 and remains horizontal to facilitate the placement of items. At this time, the shelf body 100 is in place. The shelf body 100 can be raised and lowered along the slide rail 121. If it tilts during the lifting process, the shelf body 100 will be out of position. Fig.11 As shown, the shelf body 100 is subjected to an upward force and is thus tilted upward.

[0121] Optionally, the rack further includes a motor 140. The motor 140 is electrically connected to the controller and is used to drive the shelf body 100 to rise and fall; when the shelf body 100 is rising and falling and the controller determines that the shelf body 100 is tilted, the controller controls the motor 140 to stop.

[0122] In this embodiment, if the shelf body 100 continues to be raised or lowered when it is out of position, the placed items will topple over or even roll down. Therefore, when the controller determines that the shelf body 100 is tilted, the controller controls the motor 140 to stop. In this way, the placed items can be effectively prevented from toppling over or rolling down, and the stability of the lifting and lowering of the shelf body 100 can be ensured.

[0123] Optionally, the contact member 410 is disposed on the cantilever 110 ; the trigger member 420 is disposed on the slider 122 , and the trigger member 420 corresponds to the contact member 410 .

[0124] In this embodiment, since the shelf body 100 is connected to the slider 122 through the cantilever 110, when the shelf body 100 is in place and during the lifting process, the trigger member 420 moves synchronously with the slider 122 and always contacts the contact member 410 on the cantilever 110. When the shelf body 100 tilts, the cantilever 110 tilts synchronously, and the contact member 410 moves synchronously with the cantilever 110 and separates from the trigger member 420. At this time, the micro switch 400 is disconnected, thereby immediately triggering the response of the controller. Here, the trigger member 420 can be set on any cantilever 110 on both sides of the shelf body 100.

[0125] Alternatively, if Fig.11 As shown, a first clamping shaft 113 is provided on the slider 122 , and a positive hook 111 with an opening facing downward is provided at the end of the cantilever 110 ; the cantilever 110 is clamped to the first clamping shaft 113 through the positive hook 111 , and the positive hook 111 serves as a contact member 410 .

[0126] In this embodiment, the positive hook 111 and the first hook shaft 113 are designed to be connected by a clip, so that the shelf body 100 can be quickly and easily installed on the slider 122 through the cantilever 110, and can also be easily removed from the slider 122. In addition, the positive hook 111 also serves as the contact member 410, which has a high sensitivity. When the shelf body 100 is tilted, the positive hook 111 moves synchronously and is separated from the trigger member 420.

[0127] Optionally, a second clamping shaft 114 is provided on the slider 122 , and an upwardly opening undercut hook 112 is provided at the end of the cantilever 110 ; the cantilever 110 is clamped to the second clamping shaft 114 via the undercut hook 112 , and the undercut hook 112 serves as a contact member 410 .

[0128] In this embodiment, the undercut hook 112 and the second clamping shaft 114 are designed to be clamped, so that the shelf body 100 can be quickly and easily installed on the slider 122 through the cantilever 110, and can also be easily removed from the slider 122. In addition, the undercut hook 112 also serves as the contact member 410, which has a high sensitivity. When the shelf body 100 is tilted, the undercut hook 112 moves synchronously and separates from the trigger member 420. Here, the opening of the positive hook 111 faces downward, and the opening of the undercut hook 112 faces upward. When installing, the undercut hook 112 is clamped from top to bottom, and the first clamping shaft 113 forms an upward force on the positive hook 111, thereby supporting the shelf body 100; the second clamping shaft 114 forms a downward force on the undercut hook 112, thereby preventing the shelf body 100 from turning over.

[0129] Alternatively, if Fig.13As shown, the positive hook 111 and the reverse hook 112 are both used as a contact member 410, and two corresponding trigger members 420 are respectively provided on the slider 122. In this way, two sets of micro switches are formed, and any micro switch transmits a disconnection signal to the controller, and the controller determines that the shelf body 100 is out of position.

[0130] Optionally, a movable pulley 130 is provided on the slider 122; the driving mechanism also includes a pull rope 150, a first end of the pull rope 150 is connected to the motor 140, and a second end of the pull rope 150 is connected to the movable pulley 130; and the motor 140 drives the movable pulley 130 to move through the pull rope 150, and then the movable pulley 130 drives the shelf body 100 to rise and fall through the slider 122.

[0131] In this embodiment, the motor 140 can be connected to the first end of the pull rope 150 through a winding wheel structure, and can also be connected to the first end of the pull rope 150 through a gear rack structure. The implementation methods of the winding wheel structure and the gear rack structure are detailed in the first to third embodiments, and are not repeated here. In this way, when the motor 140 adjusts the position of the pull rope 150, the movable pulley 130 moves along the pull rope 150, thereby driving the shelf body 100 to rise and fall. In addition, under the labor-saving characteristics of the movable pulley 130, the motor 140 can drive the movement of the shelf body 100 with a smaller driving force, which is beneficial to reducing the torque of the motor 140.

[0132] Optionally, the mounting assembly 120 includes a bracket, and the shelf body 100 is fixed on the bracket; and the shelf body 100 is kept horizontal when in position, and the shelf body 100 is tilted when out of position. The contact member 410 is arranged on the shelf body 100; the trigger member 420 is arranged on the bracket, and the trigger member 420 corresponds to the contact member 410.

[0133] In the present embodiment, the shelf body 100 is fixedly connected to the bracket and does not have a lifting function. When the shelf is used for a long time or carries heavy items, the connection between the shelf body 100 and the bracket may become loose. Under the action of the anti-dumping mechanism, once the shelf body 100 becomes loose and tilts, the contact member 410 is separated from the trigger member 420. The micro switch 400 transmits a disconnection signal to the controller, and the controller determines that the shelf body 100 is out of position. In this way, it is timely known when the shelf body 100 is out of position, so as to facilitate the fastening connection between the shelf body 100 and the bracket. It can be seen that the anti-dumping mechanism of the present embodiment is applicable to shelves with and without lifting functions.

[0134] An embodiment of the present disclosure also provides a refrigerator, comprising the shelf described in any of the above embodiments.

[0135] In this embodiment, the refrigerator has a box body, the shelf is arranged in the box body, and the upper part of the shelf body 100 is used to place items. Moreover, once the shelf body 100 is out of position, the anti-dumping mechanism composed of the micro switch can be promptly informed, so as to further operate the shelf. In this way, it is beneficial to protect the safety of the items in the refrigerator and reduce unnecessary losses.

[0136] 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: The shelf body (100) can be raised and lowered; The driving mechanism comprises a motor (140), wherein the motor (140) is used to drive the shelf body (100) to rise and fall; The anti-dumping mechanism comprises a radiation component (200) and a controller, wherein the radiation component (200) is arranged on a shelf body (100), and the radiation component (200) and a motor (140) are both electrically connected to the controller; the radiation component (200) comprises a transmitting end (210) and a receiving end (220), wherein the transmitting end (210) is located below the shelf body (100) and is used to transmit detection light, and the receiving end (220) is used to receive the detection light; Furthermore, when the shelf body (100) is descending and the detection light is blocked by an object so that the receiving end (220) does not receive a signal, the controller controls the motor (140) to stop.

2. The shelf according to claim 1, characterized in that: A plurality of shelf bodies (100) are arranged in sequence from top to bottom, and each shelf body (100) is provided with a ray assembly (200); Furthermore, when a shelf body (100) is rising and the receiving end (220) of the adjacent shelf body (100) above it does not receive a signal, the controller controls the corresponding motor (140) to stop.

3. The shelf according to claim 1 or 2, characterized in that: The anti-tipping mechanism also includes: A reflective assembly (230) is disposed on the shelf body (100), and comprises a first mirror surface (231) and a second mirror surface (232); the first mirror surface (231) and the second mirror surface (232) are both located below the shelf body (100) and are arranged opposite to each other; The transmitting end (210) transmits the detection light at an inclined angle toward any mirror surface, so that the detection light is reflected between the two mirror surfaces; and the receiving end (220) is located at any reflection point.

4. The shelf according to claim 3, characterized in that: The first mirror surface (231) and the second mirror surface (232) are parallel to each other.

5. The shelf according to claim 3, characterized in that: Along the length direction of the first mirror surface (231), the transmitting end (210) is arranged at one end of the first mirror surface (231), and the receiving end (220) is arranged at the other end of the first mirror surface (231).

6. The shelf according to claim 3, characterized in that: Opposite cantilevers (110) are arranged on both sides of the shelf body (100), and the opposite plate surfaces of the two cantilevers (110) serve as a first mirror surface (231) and a second mirror surface (232), respectively.

7. The shelf according to claim 1 or 2, characterized in that: The detection light includes infrared light.

8. The shelf according to claim 1 or 2, characterized in that: Also included is an installation component (120), the installation component (120) comprising: A slide rail (121) is arranged along the lifting direction of the shelf body (100); A slider (122), the shelf body (100) is connected to the slide rail (121) via the slider (122), and a movable pulley (130) is provided on the slider (122); The drive mechanism also includes: The pull rope (150) has a first end connected to the motor (140) and a second end connected to the movable pulley (130); and the motor (140) drives the movable pulley (130) to move through the pull rope (150), and then the movable pulley (130) drives the shelf body (100) to rise and fall through the slider (122).

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: A fixed shelf is arranged above the shelf body (100), and a radiation assembly (200) is also arranged below the fixed shelf; Furthermore, when the shelf body (100) is rising and the receiving end (220) of the fixed shelf does not receive a signal, the controller controls the motor (140) to stop.

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