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 ascend and descend along the sliding rail; the driving module comprises a motor and a pull rope, and the motor drives the shelf body to ascend and descend through the pull rope; the overweight module comprises a controller and a tension sensor, and the controller is electrically connected to the tension sensor and the motor; the tension sensor is used for detecting loading tension of the pull rope, and the controller is configured to control starting and stopping of the motor according to the loading tension. The utility model further discloses the refrigerator.

Description

Technical Field

[0001] This 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 in a constant low temperature state. The core components of a refrigerator include a refrigeration system and a storage box. Through the refrigeration system, a low temperature environment can be continuously and stably provided for the storage box, so as to meet people's needs for food preservation and storage.

[0003] Related technologies disclose a refrigerator with a liftable shelf inside. The shelf includes a shelf body, and an electric motor is used to drive a wire reel to rotate. The wire reel directly winds two independent pulling ropes to drive the shelf body to lift and lower.

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

[0005] When the shelf lifts and lowers under overweight conditions, it is easy to cause the electric motor to operate overloaded and then damage the motor, so the safety performance is poor.

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

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0008] The embodiments of the present disclosure provide a shelf and a refrigerator, which solve the problem of the shelf lifting and lowering under overload.

[0009] In some embodiments, the shelf includes:

[0010] A shelf body;

[0011] A sliding mechanism, including a slide rail, and the shelf body can lift and lower along the slide rail;

[0012] A driving module, including an electric motor and a pulling rope, and the electric motor drives the shelf body to lift and lower through the pulling rope;

[0013] An overweight module, including a controller and a tension sensor, and the controller is electrically connected to the tension sensor and the electric motor; the tension sensor is used to detect the load-bearing tension of the pulling rope, and the controller is configured to control the start and stop of the electric motor according to the load-bearing tension.

[0014] Optionally, the side of the shelf body is connected to the slide rail through a slider, and a movable pulley is provided on the slider;

[0015] The pulling rope is connected to the shelf body through the movable pulley; and, the motor drives the movable pulley to move through the pulling rope, and then the movable pulley drives the shelf body to lift and lower through the slider.

[0016] Optionally, the driving module further includes:

[0017] A winding wheel, the motor is used to drive the winding wheel to rotate; and, the first end of the pulling rope is connected to the winding wheel, and the second end bypasses the movable pulley from bottom to top and is fixed.

[0018] Optionally, the tension sensor is arranged in the middle of the pulling rope and is located between the winding wheel and the movable pulley.

[0019] Optionally, the tension sensor is arranged at the second end of the pulling rope, and the second end of the pulling rope is fixed through the tension sensor.

[0020] Optionally, the controller is configured to: control the motor to stop when the load pulling force is greater than the preset pulling force; or,

[0021] The controller is configured to: convert the load pulling force into the load weight, and control the motor to stop when the load weight is greater than the preset weight.

[0022] Optionally, the overweight module further includes:

[0023] An alarm, electrically connected to the controller, for giving an alarm when the load pulling force is greater than the preset pulling force or the load weight is greater than the preset weight.

[0024] Optionally, the two slide rails are arranged in parallel, and both sides of the shelf body are respectively connected to the slide rail through a slider, and movable pulleys are provided on both sliders;

[0025] The pulling rope includes a first rope segment and a second rope segment, and the first rope segment and the second rope segment are respectively connected to both sides of the shelf body through the corresponding movable pulleys.

[0026] Optionally, the overweight module includes two tension sensors, which are respectively used to detect the load pulling forces of the first rope segment and the second rope segment;

[0027] And, the controller is configured to: control the motor to stop when the difference between the two load pulling forces is greater than the preset threshold.

[0028] The shelf and the refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0029] The shelf body is lifted by a motor and a pulling rope. The load-bearing tension of the pulling rope is monitored in real time by a tension sensor, and the controller controls the start and stop of the motor according to the load-bearing tension. In this way, it is possible to monitor whether the shelf body is overweight, effectively prevent the motor from overloading, avoid excessive wear and damage of the motor and the transmission components, and ensure the safety and stability of the lifting of the shelf body.

[0030] The above general description and the following description are only exemplary and explanatory, and are not used to limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] One or more embodiments are exemplarily illustrated by the corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and in which:

[0032] Figure 1 is a schematic structural diagram of a storage rack provided by an embodiment of the present disclosure;

[0033] Figure 2 is a schematic diagram of a pulling rope layout provided by an embodiment of the present disclosure;

[0034] Figure 3 is a schematic structural diagram of a storage rack provided by an embodiment of the present disclosure;

[0035] Figure 4 is a schematic diagram of another pulling rope layout provided by an embodiment of the present disclosure;

[0036] Figure 5 is a schematic structural diagram of a movable pulley provided by an embodiment of the present disclosure;

[0037] Figure 6 is a schematic diagram of a tension sensor layout provided by an embodiment of the present disclosure;

[0038] Figure 7 is a schematic diagram of another tension sensor layout provided by an embodiment of the present disclosure;

[0039] Figure 8 is a schematic structural diagram of a tension sensor provided by an embodiment of the present disclosure.

[0040] Reference Signs:

[0041] 100, shelf body; 110, slide rail; 120, slider; 130, movable pulley;

[0042] 200, pulling rope; 210, first rope segment; 220, second rope segment; 230, main rope segment; 240, motor;

[0043] 300, winding wheel; 310, first fixed pulley; 320, second fixed pulley; 330, third fixed pulley; 340, fourth fixed pulley;

[0044] 400, tension sensor. Detailed implementation manner

[0045] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in simplified form to simplify the drawings.

[0046] The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of the present disclosure here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0047] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. 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.

[0048] In addition, the terms "set", "connected", "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 directly connected, or indirectly connected through an intermediate medium, or there is 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.

[0049] Unless otherwise specified, the term "plurality" means two or more.

[0050] In the embodiments of the present disclosure, the character " / " indicates an "or" relationship between the front and rear objects. For example, A / B means: A or B.

[0051] The term "and / or" is an associative relationship describing an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B, these three relationships.

[0052] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0053] The embodiments of the present disclosure provide a refrigerator, including a shelf.

[0054] Combined with Figure 1-8 As shown, the embodiments of the present disclosure provide a shelf, including a shelf body 100, a sliding mechanism, and a driving module. As Figure 1 shown, the sliding mechanism includes a slide rail 110, and the shelf body 100 can be lifted and lowered along the slide rail 110; the driving module includes a winding wheel 300 and a pull rope 200, and the pull rope 200 includes a main rope segment 230, a first rope segment 210, and a second rope segment 220; wherein, the first end of the main rope segment 230 is connected to the winding wheel 300, the first ends of the first rope segment 210 and the second rope segment 220 are both connected to the second end of the main rope segment 230, and the second ends of the first rope segment 210 and the second rope segment 220 are respectively connected to both sides of the shelf body 100; and, when the winding wheel 300 rotates to wind or release the main rope segment 230, the shelf body 100 is synchronously pulled up and down through the first rope segment 210 and the second rope segment 220.

[0055] In this embodiment, when the winding wheel 300 rotates and winds the main rope segment 230, the effective length of the main rope segment 230 is shortened. The effective length refers to the length of the non-wound part of the main rope segment 230. When the main rope segment 230 is shortened, the shelf body 100 is synchronously pulled up along the slide rail 110 through the first rope segment 210 and the second rope segment 220 respectively. When the winding wheel 300 rotates and releases the main rope segment 230, the effective length of the main rope segment 230 is extended. When the main rope segment 230 is extended, the shelf body 100 slides downward along the slide rail 110 under the action of gravity. Here, the pull rope 200 adopts a three-segment structure, with the main rope segment 230 as the core, and the winding wheel 300 can wind multiple turns of the main rope segment 230, thereby increasing the moving distance of the shelf body 100. The first rope segment 210 and the second rope segment 220 are used as two branches to synchronously pull the shelf body 100, thereby improving the stability of the lifting and lowering of the shelf body 100.

[0056] Optionally, as Figure 2As shown, the first rope segment 210 is connected to the first side of the shelf body 100 through the first fixed pulley 310, and the second rope segment 220 is connected to the second side of the shelf body 100 through the second fixed pulley 320; moreover, the installation heights of the first fixed pulley 310 and the second fixed pulley 320 are the same.

[0057] In this embodiment, since the installation heights of the two fixed pulleys are the same, it can ensure that the first rope segment 210 and the second rope segment 220 maintain the same tension when pulling the shelf body 100, which is beneficial to avoiding the inclination or shaking of the shelf body 100 caused by uneven rope segment tension. Moreover, since the fixed pulley can smoothly guide the movement of the rope segment, it reduces the resistance and friction of the first rope segment 210 and the second rope segment 220 during the lifting process, which is beneficial to improving the lifting efficiency of the shelf body 100.

[0058] Optionally, as Figure 1 and Figure 2 shown, the winding wheel 300 is arranged above the middle of the first fixed pulley 310 and the second fixed pulley 320, so that the main rope segment 230, the first rope segment 210 and the second rope segment 220 form an inverted Y shape.

[0059] In this embodiment, the layout of the shelf is, from top to bottom in sequence: the winding wheel 300, the first fixed pulley 310 and the second fixed pulley 320 with the same height, the shelf body 100. Moreover, the winding wheel 300 is arranged above the middle of the first fixed pulley 310 and the second fixed pulley 320, having a certain symmetry, so that the tension of the main rope segment 230 can be evenly transmitted to the first rope segment 210 and the second rope segment 220. Moreover, the inverted Y-shaped layout is relatively reasonable, reducing the bending and crossing of the pulling rope 200.

[0060] Optionally, as Figure 3 and Figure 4 shown, the winding wheel 300 is arranged below the middle of the first fixed pulley 310 and the second fixed pulley 320, so that the main rope segment 230, the first rope segment 210 and the second rope segment 220 form a right-side-up Y shape.

[0061] In this embodiment, the layout of the shelf is, from top to bottom in sequence: the first fixed pulley 310 and the second fixed pulley 320 with the same height, the winding wheel 300, the shelf body 100; or, the first fixed pulley 310 and the second fixed pulley 320 with the same height, the shelf body 100, the winding wheel 300; moreover, the winding wheel 300 is arranged below the middle of the first fixed pulley 310 and the second fixed pulley 320, having a certain symmetry, so that the tension of the main rope segment 230 can be evenly transmitted to the first rope segment 210 and the second rope segment 220. Moreover, the right-side-up Y-shaped layout is relatively reasonable, reducing the bending and crossing of the pulling rope 200.

[0062] Optionally, the lengths of the first rope segment 210 and the second rope segment 220 are the same. Here, the design of the same length ensures the synchronization of the lifting of the shelf body 100 and prevents the shelf body 100 from tilting.

[0063] Optionally, as Figure 2 shown, the angle formed by the first rope segment 210 around the first fixed pulley 310 is α1, and the angle formed by the second rope segment 220 around the second fixed pulley 320 is α2, and α1 = α2.

[0064] In this embodiment, since the two angles are equal, the first rope segment 210 and the second rope segment 220 present a symmetric layout after bypassing the corresponding fixed pulleys, which is beneficial to ensuring that the pulling forces on both sides of the shelf body 100 are balanced during the lifting process. If the angles of the two rope segments are not equal, it may cause the shelf body 100 to be subjected to an eccentric load, that is, the force on one side is greater than the force on the other side. And the equal angles can effectively reduce this eccentric load phenomenon and improve the stability and safety of the shelf.

[0065] Optionally, the angle formed by the first rope segment 210 around the first fixed pulley 310 is α1, and 45° ≤ α1 ≤ 135°.

[0066] Here, the value of α1 can be selected from 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130° or 135°.

[0067] Exemplarily, the winding wheel 300 is arranged below the first fixed pulley 310, and the first rope segment 210 bypasses the first fixed pulley 310 from bottom to top, and α1 = 45°.

[0068] Another exemplarily, the winding wheel 300 is arranged above the first fixed pulley 310, and the first rope segment 210 bypasses the first fixed pulley 310 from top to bottom, and α1 = 135°.

[0069] Optionally, the angle formed by the second rope segment 220 around the second fixed pulley 320 is α2, and 45° ≤ α2 ≤ 135°.

[0070] Here, the value of α2 can be selected from 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130° or 135°.

[0071] Exemplarily, the winding wheel 300 is arranged below the first fixed pulley 310, and the second rope segment 220 bypasses the second fixed pulley 320 from bottom to top, and α2 = 45°.

[0072] Another example is that the winding wheel 300 is arranged above the second fixed pulley 320, and the second rope segment 220 bypasses the second fixed pulley 320 from top to bottom, and α2 = 135°.

[0073] Optionally, as Figure 3 shown, a third fixed pulley 330 is provided between the first end of the first rope segment 210 and the first fixed pulley 310, and a fourth fixed pulley 340 is provided between the first end of the second rope segment 220 and the second fixed pulley 320; and, the installation heights of the third fixed pulley 330 and the fourth fixed pulley 340 are the same.

[0074] In this embodiment, adding the third fixed pulley 330 and the fourth fixed pulley 340 can further disperse the tension on the corresponding rope segments. When the rope segment bypasses the corresponding fixed pulley, the tension will be transmitted between multiple pulleys, which helps to reduce the tension borne by a single pulley or rope segment, thereby improving the stability and safety of the system. And, the main function of the fixed pulley is to change the direction of the force. By adding the third fixed pulley 330 and the fourth fixed pulley 340, the direction of the rope segment can be adjusted more flexibly, which is beneficial to meeting specific layout requirements.

[0075] Exemplarily, as Figure 4 shown, the winding wheel 300 is arranged below the first fixed pulley 310, and the arrangement height of the third fixed pulley 330 is below the first fixed pulley 310 and above the winding wheel 300. In this way, the first rope segment 210 first bypasses the third fixed pulley 330 from bottom to top, and then bypasses the first fixed pulley 310 from bottom to top, and then is connected to the first side of the shelf body 100.

[0076] Another example is that the winding wheel 300 is arranged above the first fixed pulley 310, and the arrangement height of the third fixed pulley 330 is above the first fixed pulley 310 and below the winding wheel 300. In this way, the first rope segment 210 first bypasses the third fixed pulley 330 from top to bottom, and then bypasses the first fixed pulley 310 from top to bottom, and then is connected to the first side of the shelf body 100.

[0077] Optionally, the two slide rails 110 are arranged in parallel, and both sides of the shelf body 100 are respectively connected to the slide rails 110 through a slider 120, and a movable pulley 130 is provided on each of the two sliders 120; and, the first rope segment 210 and the second rope segment 220 are respectively connected to both sides of the shelf body 100 through the corresponding movable pulleys 130.

[0078] In this embodiment, as Figure 5As shown, the first rope segment 210 is connected to the corresponding slider 120 through the corresponding movable pulley 130, and the second rope segment 220 is connected to the corresponding slider 120 through the corresponding movable pulley 130. In this way, when the main rope segment 230 is wound around the rope winding wheel 300, the two movable pulleys 130 move upward along the corresponding rope segments respectively, thereby driving the shelf body 100 to rise. Moreover, due to the force-saving characteristic of the movable pulley 130, the motor 240 can drive the movement of the shelf body 100 with a smaller driving force, which is beneficial to reducing the torque of the motor 240.

[0079] Combined with Figure 1-8 As shown, an embodiment of the present disclosure provides a storage rack, including a shelf body 100, a sliding mechanism, a driving module, and an overweight module. As Figure 5 shown, the sliding mechanism includes a slide rail 110, and the shelf body 100 can be lifted and lowered along the slide rail 110; the driving module includes a motor 240 and a pull rope 200, and the motor 240 drives the shelf body 100 to lift and lower through the pull rope 200; the overweight module includes a controller and a tension sensor 400, and the controller is electrically connected to the tension sensor 400 and the motor 240; the tension sensor 400 is used to detect the load-bearing tension of the pull rope 200, and the controller is configured to control the start and stop of the motor 240 according to the load-bearing tension.

[0080] In this embodiment, the shelf body 100 is lifted and lowered by the motor 240 and the pull rope 200, the load-bearing tension of the pull rope 200 is monitored in real time by the tension sensor 400, and the controller controls the start and stop of the motor 240 according to the load-bearing tension. In this way, it is possible to monitor whether the shelf body 100 is overweight, effectively prevent the motor 240 from overloading, avoid excessive wear and damage of the motor 240 and the transmission components, and ensure the safety and stability of the lifting of the shelf body 100. Here, the layout of the motor 240 and the pull rope 200 is not specifically limited.

[0081] Optionally, as Figure 5 shown, the side of the shelf body 100 is connected to the slide rail 110 through a slider 120, and a movable pulley 130 is provided on the slider 120; the pull rope 200 is connected to the shelf body 100 through the movable pulley 130; moreover, the motor 240 drives the movable pulley 130 to move through the pull rope 200, and then the movable pulley 130 drives the shelf body 100 to lift and lower through the slider 120. In this way, due to the force-saving characteristic of the movable pulley 130, the motor 240 can drive the movement of the shelf body 100 with a smaller driving force, which is beneficial to reducing the torque of the motor 240.

[0082] Optionally, the driving module further includes a rope winding wheel 300, and the motor 240 is used to drive the rope winding wheel 300 to rotate; moreover, the first end of the pull rope 200 is connected to the rope winding wheel 300, and the second end bypasses the movable pulley 130 from bottom to top and is fixed.

[0083] In this embodiment, when the winding wheel 300 winds the pulling rope 200, the effective length of the pulling rope 200 is shortened. When the pulling rope 200 is shortened, it drives the movable pulley 130 to move upward along the pulling rope 200, and then the movable pulley 130 drives the shelf body 100 to rise through the slider 120.

[0084] Optionally, as Figure 6 shown, the tension sensor 400 is arranged in the middle of the pulling rope 200 and is located between the winding wheel 300 and the movable pulley 130.

[0085] In this embodiment, the tension sensor 400 is placed in the middle of the pulling rope 200, and when the length of the pulling rope 200 changes, the tension sensor 400 moves synchronously. The tension sensor 400 measures the load-bearing tension of the pulling rope 200, and then transmits the load-bearing tension to the controller.

[0086] Optionally, as Figure 7 and Figure 8 shown, the tension sensor 400 is arranged at the second end of the pulling rope 200, and the second end of the pulling rope 200 is fixed through the tension sensor 400.

[0087] In this embodiment, the tension sensor 400 is arranged at the second end of the pulling rope 200 and is fixedly arranged. When the length of the pulling rope 200 changes, the tension sensor 400 does not move. In this way, the tension sensor 400 is relatively stable and is not easily affected by vibration and impact, which is beneficial to maintaining the stability and accuracy of the measurement results.

[0088] Optionally, the controller is configured to control the motor 240 to stop when the load-bearing tension is greater than the preset tension.

[0089] In this embodiment, the tension sensor 400 transmits the tension signal to the controller, and the controller compares the received load-bearing tension with the preset tension. When the load-bearing tension is greater than the preset tension, it means that the load on the shelf body 100 is too heavy. At this time, the controller controls the motor 240 to stop, and the shelf body 100 stops lifting and lowering. After removing some items on the shelf body 100 and making the load-bearing tension less than or equal to the preset tension. At this time, the controller controls the motor 240 to start, and the shelf body 100 can continue to lift and lower.

[0090] Optionally, the controller is configured to convert the load-bearing tension into the load-bearing weight, and control the motor 240 to stop when the load-bearing weight is greater than the preset weight.

[0091] In this embodiment, the tension sensor 400 transmits the tension signal to the controller. The controller converts the tension signal into a weight signal based on an internal algorithm and further compares the load weight with the preset weight. When the load weight is greater than the preset weight, it means that the load on the shelf body 100 is overweight. At this time, the controller controls the motor 240 to stop, and the shelf body 100 stops lifting. By removing some items on the shelf body 100 and making the load weight less than or equal to the preset weight. At this time, the controller controls the motor 240 to start, and the shelf body 100 can continue to lift.

[0092] Optionally, as Figure 6 and Figure 7 shown, the two slide rails 110 are arranged in parallel. Both sides of the shelf body 100 are respectively connected to the slide rails 110 through a slider 120, and a movable pulley 130 is provided on each of the two sliders 120; the pulling rope 200 includes a first rope segment 210 and a second rope segment 220, and the first rope segment 210 and the second rope segment 220 are respectively connected to both sides of the shelf body 100 through the corresponding movable pulleys 130. The overweight module includes two tension sensors 400, which are respectively used to detect the load tensions of the first rope segment 210 and the second rope segment 220; and the controller is configured to: control the motor 240 to stop when the difference between the two load tensions is greater than a preset threshold.

[0093] In this embodiment, by using two tension sensors 400 to respectively detect the load tensions of the first rope segment 210 and the second rope segment 220, the balance state of the shelf body 100 during the lifting process can be grasped in real time. The load tension of the first rope segment 210 is denoted as the first tension, and the load tension of the second rope segment 220 is denoted as the second tension. When the difference between the first tension and the second tension is greater than the preset threshold, it means that the shelf body 100 has tilted or there is a risk of tilting. At this time, the controller controls the motor 240 to stop, and the shelf body 100 stops lifting. By removing or adjusting the position of the items on the shelf body 100 and making the difference between the first tension and the second tension less than or equal to the preset threshold. At this time, the controller controls the motor 240 to start, and the shelf body 100 can continue to lift.

[0094] Optionally, the overweight module further includes an alarm. The alarm is electrically connected to the controller and is used to give an alarm.

[0095] In this embodiment, when the load tension is greater than the preset gravity, or when the load weight is greater than the preset weight, or when the difference between the two load tensions is greater than the preset threshold, the controller controls the alarm to give an alarm, thereby reminding the user that the shelf body 100 is overweight or the shelf body 100 is tilted.

[0096] In this embodiment, the refrigerator has a cabinet, and the shelf is arranged inside the cabinet. The upper part of the shelf body 100 is used for placing items. Moreover, once the shelf body 100 is displaced, the anti-tipping mechanism composed of microswitches can promptly inform, so as to further operate on the shelf. In this way, it is beneficial to protect the safety of the items in the refrigerator and reduce unnecessary losses.

[0097] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations can vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited 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 be raised and lowered along the slide rail (110); The driving module comprises a motor (240) and a pull rope (200), and the motor (240) drives the shelf body (100) to rise and fall through the pull rope (200); The super-heavy module comprises a controller and a tension sensor (400), wherein the controller is electrically connected to the tension sensor (400) and the motor (240); the tension sensor (400) is used to detect the load tension of the pull rope (200), and the controller is configured to control the start and stop of the motor (240) according to the load tension.

2. The shelf according to claim 1, characterized in that: The side of the shelf body (100) is connected to the slide rail (110) via a slider (120), and a movable pulley (130) is provided on the slider (120); The pull rope (200) is connected to the shelf body (100) through the movable pulley (130); and the motor (240) drives the movable pulley (130) to move through the pull rope (200), and then the movable pulley (130) drives the shelf body (100) to rise and fall through the slider (120).

3. The shelf according to claim 2, characterized in that: The driver module also includes: The winding wheel (300) is driven by a motor (240) to rotate; and the first end of the pull rope (200) is connected to the winding wheel (300), and the second end of the pull rope (200) is passed through a movable pulley (130) from bottom to top and fixed.

4. The shelf according to claim 3, characterized in that: The tension sensor (400) is arranged in the middle of the pull rope (200) and is located between the winding wheel (300) and the movable pulley (130).

5. The shelf according to claim 3, characterized in that: The tension sensor (400) is arranged at the second end of the pull rope (200), and the second end of the pull rope (200) is fixed by the tension sensor (400).

6. The shelf according to any one of claims 1 to 5, characterized in that: The controller is configured to: when the load pulling force is greater than a preset pulling force, control the motor (240) to stop; or, The controller is configured to convert the load pulling force into the load weight, and control the motor (240) to stop when the load weight is greater than a preset weight.

7. The shelf according to claim 6, characterized in that: The Super Heavy module also includes: The alarm is electrically connected to the controller and is used to sound an alarm when the load pulling force is greater than a preset pulling force or the load weight is greater than a preset weight.

8. The shelf according to any one of claims 2 to 5, characterized in that: The two slide rails (110) are arranged in parallel, and the two sides of the shelf body (100) are connected to the slide rails (110) through a slider (120) respectively, and the two sliders (120) are both provided with a movable pulley (130); The pull rope (200) comprises a first rope segment (210) and a second rope segment (220), and the first rope segment (210) and the second rope segment (220) are respectively connected to two sides of the shelf body (100) through corresponding movable pulleys (130).

9. The shelf according to claim 8, characterized in that: The super-heavy module comprises two tension sensors (400) for respectively detecting the load tension of the first rope segment (210) and the second rope segment (220); Furthermore, the controller is configured to control the motor (240) to stop when the difference between the two load pulling forces is greater than a preset threshold.

10. A refrigerator, characterized in that: The invention comprises a shelf as claimed in any one of claims 1 to 9.

Images