A refrigerator

Abstract

This application relates to the field of refrigeration equipment technology and discloses a refrigerator, including: a cabinet having a storage compartment and a front opening communicating with the storage compartment; a door disposed at the front opening of the cabinet and configured to open or close the front opening of the cabinet; a cooling device for cooling the storage compartment; shelves for placing items; a lifting mechanism disposed in the storage compartment for adjusting the height of the shelves, the lifting mechanism including: a first support rod disposed vertically in the storage compartment; a shelf connecting seat slidably connected to the first support rod, the shelf being disposed on the shelf connecting seat; a driving assembly including: a winding rod rotatably disposed on the shelf connecting seat, the winding rod being rotatable about its axis; a first pull rope, the first end of the first pull rope being fixed to the first support rod and located above the shelf connecting seat, the second end of the first pull rope being wound around the winding rod.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and more particularly to a refrigerator. Background Technology

[0002] Refrigerators are a common household appliance, and as people's living standards improve, the demand for large-capacity refrigerators is increasing. To accommodate items of different sizes and to improve the utilization of internal space, refrigerators are equipped with multiple shelves for storing food.

[0003] In related technologies, a lifting structure for adjusting the height of a shelf requires that one end of its guide wheel, pulley, and rope be individually fixed to the inner wall of the refrigerator body before the lifting structure is installed with the shelf. This results in low assembly efficiency and low product production efficiency. Summary of the Invention

[0004] This application discloses a refrigerator that optimizes the structure of existing refrigerators and solves the problems of low assembly efficiency and low product production efficiency.

[0005] To achieve the above objectives, some embodiments of this application provide a refrigerator, including:

[0006] A housing having a storage compartment and a front opening communicating with the storage compartment;

[0007] A door is disposed at the front opening of the housing and is configured to open or close the front opening of the housing;

[0008] A cooling device for cooling the storage compartment;

[0009] Shelves, used for holding items;

[0010] A lifting mechanism, disposed in the storage room, is used to adjust the height of the shelves. The lifting mechanism includes:

[0011] A first support rod is vertically disposed in the storage chamber;

[0012] A shelf connecting seat, wherein the shelf connecting seat is slidably connected to the first support rod, and the shelf is disposed on the shelf connecting seat;

[0013] The driver component includes:

[0014] A winding rod is rotatably mounted on the shelf connecting seat, and the winding rod is capable of rotating about its axis.

[0015] A first pull rope, the first end of which is fixed to the first support rod and located above the shelf connecting seat, and the second end of which is wound around the winding rod.

[0016] In this way, the first support rod, shelf connecting seat, winding rod, first pull rope and shelf form a whole and are installed together in the refrigerator's storage compartment. The installation process is simple and helps to improve the assembly efficiency of the refrigerator and increase the production efficiency of the refrigerator.

[0017] In some embodiments of this application, the lifting mechanism further includes:

[0018] A first guide member is disposed on the shelf connecting seat, and a first pull rope is disposed around the first guide member. The first guide member is used to change the extension direction of the first pull rope so that the first pull rope between the first guide member and the first support rod extends in a vertical direction.

[0019] Thus, by extending the first pull rope between the first guide and the first support rod vertically through the first guide, the layout path of the first pull rope is optimized, so that the driving force of the first pull rope on the shelf connecting seat is in the vertical direction, reducing the resistance when the shelf connecting seat rises under the drive of the first pull rope, and making the lifting and lowering of the shelf smoother.

[0020] Furthermore, the first guide component is set on the shelf connecting seat, avoiding the need to set it separately on the side wall of the storage compartment, which improves the integration of the lifting mechanism, simplifies the installation process, and further improves the assembly efficiency of the refrigerator.

[0021] In some embodiments of this application, the lifting mechanism further includes:

[0022] The second guide is disposed on the shelf connecting seat. The first pull rope is disposed to pass around the first guide and the second guide in sequence. The second guide is used to change the extension direction of the first pull rope so that the first pull rope between the first guide and the second guide extends along a first horizontal direction, and the first pull rope between the second guide and the winding rod extends along a second horizontal direction, the second horizontal direction being perpendicular to the first horizontal direction.

[0023] In this way, the second guide further changes the extension direction of the first pull rope, thereby optimizing the force transmission path of the first pull rope. After passing through the first guide and the second guide in sequence, the first pull rope forms a stable horizontal and vertical extension, which helps to ensure the stability and accuracy of the shelf during the lifting process.

[0024] Furthermore, the second guide not only changes the extension direction of the first pull rope, but also further reduces friction and resistance. Since the extension of the first pull rope in both the horizontal and vertical directions is guided by the guide, it can reduce direct contact with the surrounding environment, thereby reducing friction and resistance and making the lifting and lowering of the shelf smoother.

[0025] In some embodiments of this application, the winding rod is disposed on the side of the shelf connecting seat near the front opening of the housing, and the lifting mechanism further includes:

[0026] The second support rod is arranged at intervals with the first support rod along the second horizontal direction, and both the first support rod and the second support rod are slidably connected to the shelf connecting seat;

[0027] The second pull rope has its first end fixed to the second support rod and located above the shelf connecting seat. The second end of the second pull rope is wound around the winding rod. When the winding rod rotates in the first rotation direction, the first pull rope and the second pull rope can be wound together simultaneously. When the winding rod rotates in the second rotation direction, the first pull rope and the second pull rope can be unwound simultaneously. The second rotation direction is opposite to the first rotation direction.

[0028] The third guide is disposed on the shelf connecting seat, and the second pull rope is disposed around the third guide. The third guide is used to change the extension direction of the second pull rope so that the second pull rope between the third guide and the second support rod extends in the vertical direction.

[0029] A fourth guide is provided on the shelf connecting seat. The second pull rope is arranged to pass around the third guide and the fourth guide in sequence. The fourth guide is used to change the extension direction of the second pull rope so that the second pull rope between the third guide and the fourth guide extends in a first horizontal direction, and the second pull rope between the fourth guide and the winding rod extends in a second horizontal direction.

[0030] Thus, the first and second support rods provide a stable foundation for the shelf connector, enhancing its stability during lifting and lowering. To ensure the shelf connector, carrying the shelf, does not tilt during lifting and lowering, a second pull rope is connected between the second support rod and the winding rod. When the winding rod rotates, the first and second pull ropes move simultaneously, causing the shelf connector, carrying the shelf, to rise or fall simultaneously, preventing the shelf from tilting during lifting and lowering and thus avoiding the risk of items falling off the shelf.

[0031] In some embodiments of this application, the winding rod is disposed on the side of the shelf connecting seat near the front opening of the box, and is located at the center of the shelf connecting seat along the second horizontal direction;

[0032] The second guide and the fourth guide are disposed on the side of the shelf connecting seat near the front opening of the box body, and are located at both ends of the shelf connecting seat along the second horizontal direction.

[0033] This allows the first and second pull ropes to maintain a balanced tension distribution during winding and unwinding, which helps reduce shelf swaying or tilting caused by uneven tension. It also allows the shelf to rise and fall simultaneously on both sides of the second horizontal direction, improving the stability of the lifting mechanism.

[0034] Furthermore, the second and fourth guide members are located at both ends of the shelf connection seat, providing additional support for the shelf connection seat and further enhancing the stability of the lifting mechanism, enabling it to withstand greater loads.

[0035] In some embodiments of this application, the first guide member, the second guide member, the third guide member, and the fourth guide member are all fixed pulleys, and the rotation axes of the first guide member and the third guide member are arranged along the second horizontal direction, while the rotation axes of the second guide member and the fourth guide member are arranged along the vertical direction.

[0036] In this way, by changing the extension direction of the first and second pull ropes through the fixed pulley, the pull ropes can smoothly bypass the guide members during the lifting process, reducing friction and resistance during winding and unwinding. This helps improve the operating efficiency of the lifting mechanism, allowing the shelves to rise and fall more quickly. Furthermore, the pull ropes maintain a low coefficient of friction when bypassing the guide members, thereby reducing frictional wear and helping to extend the service life of the pull ropes and guide members, reducing maintenance costs.

[0037] In some embodiments of this application, the shelf connection seat includes:

[0038] A support frame, wherein the shelf is disposed on the support frame;

[0039] A first connecting sleeve is sleeved on the first support rod and connected to the bracket; the first guide member is disposed on the first connecting sleeve.

[0040] The second connecting sleeve is sleeved on the second support rod and connected to the bracket, and the third guide member is disposed on the second connecting sleeve.

[0041] Thus, the bracket, acting as the direct support for the shelf, can withstand the weight of the shelf and the items on it. The first and second connecting sleeves are respectively fitted onto the first and second support rods, forming a stable triangular support structure and enhancing the stability of the entire lifting mechanism. By distributing the weight of the shelf and its items onto the first and second support rods through the first and second connecting sleeves, the stress on individual support points is reduced, improving the load-bearing capacity of the lifting mechanism.

[0042] Furthermore, the first and second connecting sleeves can be installed simply by fitting them onto the support rod. This installation method is not only simple and quick but also ensures a tight fit between the shelf connector and the support rod. Since the first and second connecting sleeves are independent components, they can be easily disassembled and replaced, facilitating easy disassembly and replacement during maintenance and inspection.

[0043] In some embodiments of this application, the second guide and the fourth guide are both disposed on the bracket, and the first guide, the second guide, the third guide and the fourth guide are all shielded by the bracket.

[0044] In this way, on the one hand, the bracket provides a sheltered environment for all guide components, effectively preventing them from being damaged by the external environment, such as physical impacts and corrosion, thereby extending their service life. On the other hand, the guide components are concealed within the bracket, reducing their footprint on the refrigerator's interior space and improving its utilization. Furthermore, the bracket conceals all guide components, ensuring that when the lifting mechanism is installed in the storage compartment, details such as the guide components are not visible, resulting in a cleaner and more aesthetically pleasing overall appearance.

[0045] In some embodiments of this application, the winding rod is provided with a first through hole and a second through hole, the first through hole and the second through hole penetrate the winding rod radially, the first through hole and the second through hole are spaced apart along the axial direction of the winding rod, the second end of the first pull rope extends into the first through hole and is fixedly connected to the first through hole, and the second end of the second pull rope extends into the second through hole and is fixedly connected to the second through hole;

[0046] The winding rod has a partition portion disposed on the outer periphery of the winding rod and located between the first through hole and the second through hole along the axial direction of the winding rod.

[0047] Thus, by setting a separator between the first through hole and the second through hole along the axial direction of the winding rod, the first pull rope and the second pull rope can be separated, preventing them from getting tangled together during the winding process, ensuring that the shelf can be raised and lowered normally, and also ensuring the service life of the pull rope.

[0048] In some embodiments of this application, the winding rod further includes a limiting portion disposed on the outer periphery of the winding rod, and the limiting portion is located at both ends of the winding rod along the axial direction of the winding rod.

[0049] Thus, the presence of the limiting part ensures that the pull rope always remains in the predetermined position of the winding rod, thereby preventing the pull rope from slipping off both ends of the winding rod during the winding process.

[0050] Compared with the prior art, the beneficial effects of this application are at least as follows:

[0051] This application provides a refrigerator comprising a cabinet, a door, a cooling device, shelves, and a lifting mechanism. The cabinet has a storage compartment and a front opening communicating with the storage compartment. The door is disposed at the front opening of the cabinet and is configured to open or close the front opening of the cabinet. The cooling device is used to cool the storage compartment. The shelves are used to hold items. The lifting mechanism is disposed in the storage compartment and is used to adjust the height of the shelves. The lifting mechanism includes a first support rod, a shelf connecting seat, and a drive assembly. The first support rod is disposed vertically in the storage compartment. The shelf connecting seat is slidably connected to the first support rod and the shelves are disposed on the shelf connecting seat. The drive assembly includes a winding rod and a first pull rope. The winding rod is rotatably disposed on the shelf connecting seat and can rotate around the axis of the winding rod. The first end of the first pull rope is fixed to the first support rod and is located above the shelf connecting seat. The second end of the first pull rope is wound around the winding rod. In this way, the first support rod, shelf connecting seat, winding rod, first pull rope and shelf form a whole and are installed together inside the refrigerator body, which helps to improve assembly efficiency and increase product production efficiency. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 This is a schematic diagram of the structure of the refrigerator disclosed in the embodiments of this application;

[0054] Figure 2 This is a schematic diagram of the lifting mechanism disclosed in the embodiments of this application from a first-view perspective;

[0055] Figure 3 This is a schematic diagram of the lifting mechanism disclosed in an embodiment of this application from a second-view perspective.

[0056] Figure 4 This is a front view of the lifting mechanism disclosed in the embodiments of this application;

[0057] Figure 5 for Figure 4 Sectional view of AA;

[0058] Figure 6 This is a structural schematic diagram of the lifting mechanism disclosed in an embodiment of this application from a third-person perspective;

[0059] Figure 7 This is an exploded view of the lifting mechanism disclosed in the embodiments of this application;

[0060] Figure 8 for Figure 4 Sectional view of BB;

[0061] Figure 9 This is a schematic diagram of the winding rod disclosed in the embodiments of this application;

[0062] Figure 10 This is a top view of the winding rod disclosed in the embodiments of this application.

[0063] Explanation of reference numerals in the attached figures:

[0064] 100 - Refrigerator;

[0065] 1-Box body; 11-Storage compartment; 12-Front opening; 13-Door;

[0066] 2-tier shelf;

[0067] 3-Lifting mechanism; 31-First support rod; 32-Shelf connecting seat; 321-Bracket; 322-First connecting sleeve; 323-Second connecting sleeve; 33-Drive assembly; 331-Winding rod; 3311-First through hole; 3312-Second through hole; 3313-Divider; 3314-Limiting part; 332-First pull rope; 333-Second pull rope; 34-First guide; 35-Second guide; 36-Second support rod; 37-Third guide; 38-Fourth guide;

[0068] X - First horizontal direction; Y - Second horizontal direction. Detailed Implementation

[0069] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0070] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0071] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0072] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0073] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0074] A refrigerator is a refrigeration device that maintains a constant low temperature to keep food or other items at a constant low temperature. Nowadays, with the continuous improvement of people's living standards, the demand for large-capacity refrigerators is increasing. In order to accommodate items of different sizes and to improve the utilization of the internal space of the refrigerator, multiple shelves are set up inside the refrigerator for storing items. By adjusting the height between adjacent shelves, different sizes of items can be accommodated.

[0075] In related technologies, the lifting mechanism used to adjust the shelves involves fixing the guide wheels and pulleys separately to the inner wall of the refrigerator body, and one end of the rope is also fixed to the inner wall of the refrigerator body. During assembly, the shelves need to be installed on the lifting mechanism and then connected to the guide wheels, pulleys and ropes on the inner wall of the refrigerator body. This installation process is complicated, has low assembly efficiency, and results in low refrigerator production efficiency.

[0076] Based on this, the present application discloses a refrigerator whose installation process is simple, which helps to improve assembly efficiency and increase refrigerator production efficiency.

[0077] The present technical solution will be further described below with reference to the embodiments and accompanying drawings.

[0078] Please see Figure 1 This application provides a refrigerator 100, which includes a cabinet 1 having a storage compartment 11 and a front opening 12 communicating with the storage compartment 11. Food is placed into the storage compartment 11 through the open front opening, or food is taken out of the storage compartment 11 through the open front opening 12.

[0079] like Figure 1 As shown, the refrigerator 100 also includes a door 13, which is disposed at the front opening 12 of the cabinet 1 and is used to open or close the front opening 12 of the cabinet 1. In this embodiment, the door 13 is rotatably connected to the front opening 12 of the cabinet 1.

[0080] The refrigerator 100 also includes a cooling unit (not shown) for supplying cold air to the storage compartment 11 to cool it. The cooling unit generates cold air using a cooling cycle for compressing, condensing, and evaporating the refrigerant, and supplies this cold air to the storage compartment 11. The cooling unit includes a compressor for compressing the refrigerant, a condenser for condensing the compressed refrigerant, an expansion valve for expanding the condensed refrigerant, and an evaporator for evaporating the expanded refrigerant to remove heat. The compressor, condenser, expansion valve, and evaporator form a cold cycle in which cooling air is supplied to the storage compartment 11. As a common component, a fan can be installed adjacent to the evaporator to force air circulation, blowing the cold air generated at the evaporator into the storage compartment 11. The temperature of the storage compartment 11 can be controlled by adjusting the fan's airflow and direction, adjusting the amount of refrigerant circulating, or adjusting the compressor's compression frequency to control the refrigeration load.

[0081] like Figure 1 As shown, the refrigerator 100 also includes shelves 2, which are used to hold items. The shelves 2 allow users to place items in the storage compartment 11 in layers. The items include food or other items that need to be refrigerated at low temperatures.

[0082] In most refrigerators, the side wall of the storage compartment 11 has several pairs of vertically arranged adjustable positions, and the shelves 2 are supported on the adjustable positions. The height of the shelves 2 in this structure is fixed. Only some shelves 2 can be removed to increase the height between the remaining shelves 2, but it is not possible to suspend the shelves 2 in any position.

[0083] Therefore, as Figure 1 and Figure 2 As shown, the refrigerator 100 of this application also includes a lifting mechanism 3, which is disposed in the storage compartment 11 and is used to adjust the height of the shelf 2.

[0084] like Figure 1 and Figure 2 As shown, the lifting mechanism 3 includes a first support rod 31, which is vertically positioned in the storage chamber 11.

[0085] The lifting mechanism 3 also includes a shelf connecting seat 32, which is slidably connected to the first support rod 31, and the shelf 2 is disposed on the shelf connecting seat 32. When the shelf connecting seat 32 slides relative to the first support rod 31, it can lift and lower the shelf 2.

[0086] The lifting mechanism 3 also includes a drive assembly 33, which includes a winding rod 331. The winding rod 331 is rotatably mounted on the shelf connecting seat 32, and the winding rod 331 can rotate around its axis.

[0087] The drive assembly 33 also includes a first pull rope 332, the first end of which is fixed to the first support rod 31 and located above the shelf connecting seat 32, and the second end of which is wound around the winding rod 331.

[0088] When the shelf 2 needs to be raised, the winding rod 331 is rotated, causing the first pull rope 332 to tighten. The second end of the first pull rope 332 is wrapped around the winding rod 331. During this process, the shelf connecting seat 32 is driven by the first pull rope 332 to raise the shelf 2.

[0089] When the shelf 2 needs to be lowered, the winding rod 331 is rotated in the opposite direction to the rotation of the winding rod 331 during the ascent, so that the first pull rope 332 is loosened and the second end of the first pull rope 332 is unwound from the winding rod 331. During this process, the shelf 2 and the shelf connecting seat 32 are lowered under the action of gravity.

[0090] Because some components of the existing refrigerator's lifting mechanism 3 are individually fixed to the inner wall of the storage compartment 11, this occupies part of the space inside the storage compartment 11. Furthermore, when assembling the refrigerator, it is necessary to first fix some components of the lifting mechanism 3 to the inner wall of the storage compartment 11, then install the other components of the lifting mechanism 3, and finally install the shelf 2 on the lifting mechanism 3. This installation process is complicated, resulting in low assembly efficiency of the refrigerator and reducing the production efficiency of the refrigerator.

[0091] Therefore, in this embodiment, the first support rod 31, shelf connecting seat 32, winding rod 331, first pull rope 332 and shelf 2 form a whole and are installed together in the storage compartment 11 of the refrigerator 100. The installation process is simple and helps to improve the assembly efficiency of the refrigerator 100 and increase the production efficiency of the refrigerator 100.

[0092] In some embodiments, such as Figure 2 and Figure 3 As shown, the lifting mechanism 3 also includes a first guide member 34, which is disposed on the shelf connecting seat 32. A first pull rope 332 is disposed around the first guide member 34. The first guide member 34 is used to change the extension direction of the first pull rope 332 so that the first pull rope 332 between the first guide member 34 and the first support rod 31 extends in the vertical direction.

[0093] Since the layout path of the first pull rope 332 is related to the movement trajectory of the shelf connecting seat 32, if the first end and the second end of the first pull rope 332 are arranged in an oblique line, the tension of the first pull rope 332 will be decomposed in the vertical and horizontal directions. This will cause the shelf connecting seat 32 to have excessive resistance during the process of rising under the drive of the first pull rope 332, resulting in the shelf 2 not rising and falling smoothly. Users will need to exert more force to complete the raising and lowering of the shelf 2.

[0094] Therefore, by extending the first pull rope 332 between the first guide 34 and the first support rod 31 in the vertical direction through the first guide 34, the layout path of the first pull rope 332 is optimized, so that the driving force of the first pull rope 332 on the shelf connecting seat 32 is in the vertical direction, which reduces the resistance when the shelf connecting seat 32 rises under the drive of the first pull rope 332, making the lifting and lowering of the shelf 2 smoother.

[0095] Furthermore, the first guide member 34 is set on the shelf connecting seat 32, avoiding the need to set it separately on the side wall of the storage compartment 11, improving the integration of the lifting mechanism 3, simplifying the installation steps during installation, and further improving the assembly efficiency of the refrigerator 100.

[0096] In some embodiments, such as Figure 2 and Figure 5 As shown, the lifting mechanism 3 also includes a second guide member 35, which is disposed on the shelf connecting seat 32. The first pull rope 332 is disposed by passing around the first guide member 34 and the second guide member 35 in sequence. The second guide member 35 is used to change the extension direction of the first pull rope 332 so that the first pull rope 332 between the first guide member 34 and the second guide member 35 extends along the first horizontal direction X, and the first pull rope 332 between the second guide member 35 and the winding rod 331 extends along the second horizontal direction Y.

[0097] Wherein, the second horizontal direction Y is perpendicular to the first horizontal direction X, the first horizontal direction X is the width direction of the box 1, and the second horizontal direction Y is the length direction of the box 1.

[0098] The second guide 35 further changes the extension direction of the first pull rope 332, thereby further optimizing the force transmission path of the first pull rope 332. After passing through the first guide 34 and the second guide 35 in sequence, the first pull rope 332 forms a stable horizontal and vertical extension, which helps to ensure the stability and accuracy of the shelf 2 during the lifting process.

[0099] The second guide member 35 not only changes the extension direction of the first pull rope 332, but also further reduces friction and resistance. Since the extension of the first pull rope 332 in both the horizontal and vertical directions is guided by the guide member, it can reduce direct contact with the surrounding environment, thereby reducing friction and resistance, and making the lifting and lowering of the shelf 2 smoother.

[0100] In some embodiments, combined with Figure 1 and Figure 2 The winding rod 331 is located on the side of the shelf connecting seat 32 near the front opening 12 of the box 1, so that the user can operate the winding rod 331 intuitively from the front opening 12 of the box 1.

[0101] It should be noted that this embodiment does not limit the rotation method of the winding rod 331. The winding rod 331 can be rotated manually or electrically.

[0102] For example, when the winding rod 331 is manually rotated, a handle is connected to the winding rod 331, and the user can drive the winding rod 331 to rotate by turning the handle. Alternatively, a knob is installed on the winding rod 331, and the winding rod 331 can be driven to rotate by turning the knob. When the winding rod 331 is electrically rotated, the winding rod 331 is connected to the drive end of the motor, and the rotation of the winding rod 331 is controlled by controlling the start and stop of the motor.

[0103] Combination Figure 2 and Figure 6 The lifting mechanism 3 also includes a second support rod 36, which is arranged at intervals with the first support rod 31 along the second horizontal direction Y. Both the first support rod 31 and the second support rod 36 are slidably connected to the shelf connecting seat 32. The first support rod 31 and the second support rod 36 provide a stable foundation for the shelf connecting seat 32, enhancing the stability of the shelf connecting seat 32 during the lifting process.

[0104] like Figure 6As shown, the lifting mechanism 3 also includes a second pull rope 333. The first end of the second pull rope 333 is fixed to the second support rod 36 and is located above the shelf connecting seat 32. The second end of the second pull rope 333 is wound around the winding rod 331. When the winding rod 331 rotates in the first rotation direction, the first pull rope 332 and the second pull rope 333 can be wound simultaneously. When the winding rod 331 rotates in the second rotation direction, the first pull rope 332 and the second pull rope 333 can be unwound simultaneously.

[0105] The second rotation direction is opposite to the first rotation direction, and one of the first rotation direction and the second rotation direction is clockwise, while the other is counterclockwise.

[0106] Since only the first pull rope 332 drives the shelf connecting seat 32 to raise and lower the shelf 2, the shelf 2 may tilt during the raising and lowering process. To ensure that the shelf connecting seat 32 and the shelf 2 do not tilt during the raising and lowering process, a second pull rope 333 is connected between the second support rod 36 and the winding rod 331. When the winding rod 331 rotates, the first pull rope 332 and the second pull rope 333 can move simultaneously, so that the shelf connecting seat 32 and the shelf 2 rise or fall simultaneously, avoiding the risk of the shelf 2 tilting during the raising and lowering process and causing the items on the shelf 2 to fall.

[0107] like Figure 7 and Figure 8 As shown, the lifting mechanism 3 also includes a third guide 37, which is disposed on the shelf connecting seat 32. The second pull rope 333 is disposed around the third guide 37. The third guide 37 is used to change the extension direction of the second pull rope 333 so that the second pull rope 333 between the third guide 37 and the second support rod 36 extends in the vertical direction.

[0108] The lifting mechanism 3 also includes a fourth guide member 38, which is disposed on the shelf connecting seat 32. The second pull rope 333 is disposed to pass around the third guide member 37 and the fourth guide member 38 in sequence. The fourth guide member 38 is used to change the extension direction of the second pull rope 333 so that the second pull rope 333 between the third guide member 37 and the fourth guide member 38 extends along the first horizontal direction X, and the second pull rope 333 between the fourth guide member 38 and the winding rod 331 extends along the second horizontal direction Y.

[0109] In this embodiment, the third guide member 37 has the same structure as the first guide member 34 in the above embodiment. The third guide member 37 acts on the second pull rope 333, while the first guide member 34 acts on the first pull rope 332. The first pull rope 332 and the second pull rope 333 have the same structure. Therefore, the third guide member 37 and the first guide member 34 have the same effect. This embodiment will not be described in detail here.

[0110] Similarly, in this embodiment, the fourth guide member 38 has the same structure as the second guide member 35 in the above embodiment. The fourth guide member 38 acts on the second pull rope 333, while the second guide member 35 acts on the first pull rope 332. The first pull rope 332 and the second pull rope 333 have the same structure. Therefore, the fourth guide member 38 and the second guide member 35 have the same effect. This embodiment will not be described in detail here.

[0111] In some embodiments, combined with Figure 1 and Figure 8 The winding rod 331 is disposed on the side of the shelf connecting seat 32 near the front opening 12 of the housing 1, and is located at the center of the shelf connecting seat 32 along the second horizontal direction Y. The second guide 35 and the fourth guide 38 are disposed on the side of the shelf connecting seat 32 near the front opening of the housing 1, and are located at both ends of the shelf connecting seat 32 along the second horizontal direction Y.

[0112] Since the position of the winding rod 331 on the shelf connecting seat 32 is related to the tension distribution of the first pull rope 332 and the second pull rope 333, if the position of the winding rod 331 is close to either the first pull rope 332 or the second pull rope 333, the tension on both sides of the shelf connecting seat 32 along the second horizontal direction Y will be uneven, which will cause the shelf 2 to be unable to rise and fall simultaneously along the second horizontal direction Y. During the rising and falling process, it will tilt, causing the items placed on the shelf 2 to fall off.

[0113] Therefore, in this embodiment, the winding rod 331 is located at the center of the shelf connecting seat 32, so that the first pull rope 332 and the second pull rope 333 can maintain a balanced tension distribution when winding and unwinding, which helps to reduce the swaying or tilting of the shelf 2 caused by uneven tension, and allows the shelf 2 to rise and fall simultaneously on both sides of the second horizontal direction Y, thereby improving the stability of the lifting mechanism 3.

[0114] Furthermore, the second guide member 35 and the fourth guide member 38 are located at both ends of the shelf connecting seat 32, respectively, which provide additional support for the shelf connecting seat 32, further enhancing the stability of the lifting mechanism 3 and enabling it to withstand greater loads.

[0115] In some embodiments, such as Figure 7 and Figure 8 As shown, the first guide member 34, the second guide member 35, the third guide member 37 and the fourth guide member 38 are all fixed pulleys, and the rotation axes of the first guide member 34 and the third guide member 37 are set along the second horizontal direction Y, while the rotation axes of the second guide member 35 and the fourth guide member 38 are set along the vertical direction.

[0116] By changing the extension direction of the first pull rope 332 and the second pull rope 333 through the fixed pulley, the pull ropes can smoothly bypass the guide members during the lifting process, reducing friction and resistance during the winding and unwinding process. This helps improve the operating efficiency of the lifting mechanism 3, allowing the shelf 2 to rise and fall more quickly. Furthermore, the pull ropes maintain a low coefficient of friction when bypassing the guide members, thereby reducing frictional wear and helping to extend the service life of the pull ropes and guide members, reducing maintenance costs.

[0117] In addition, the fixed pulley, as a guide component, not only changes the path of the pull rope but also provides additional support. The first guide component 34, the second guide component 35, the third guide component 37, and the fourth guide component 38 are located at different positions on the shelf connecting seat 32, forming a stable support structure that helps improve the load-bearing capacity of the lifting mechanism 3, enabling it to safely carry more and heavier items.

[0118] It should be noted that, in addition to the fixed pulley in the above embodiment, the first guide member 34, the second guide member 35, the third guide member 37 and the fourth guide member 38 can also be a movable pulley, a non-rotating guide wheel, a rolling bearing or other components that can change the extension direction of the pull rope. This embodiment does not specifically limit them.

[0119] In some embodiments, such as Figure 7 and Figure 8 As shown, the shelf connecting seat 32 includes a bracket 321, and the shelf 2 is mounted on the bracket 321.

[0120] The shelf connecting seat 32 also includes a first connecting sleeve 322, which is sleeved on the first support rod 31 and connected to the bracket 321. The first guide member 34 is disposed on the first connecting sleeve 322.

[0121] The shelf connecting seat 32 also includes a second connecting sleeve 323, which is sleeved on the second support rod 36 and connected to the bracket 321. A third guide member 37 is disposed on the second connecting sleeve 323.

[0122] The bracket 321 serves as the direct support for the shelf 2, capable of bearing the weight of the shelf 2 and the items on it. The first connecting sleeve 322 and the second connecting sleeve 323 are respectively fitted onto the first support rod 31 and the second support rod 36, forming a stable triangular support structure and enhancing the stability of the entire lifting mechanism 3. Through the first connecting sleeve 322 and the second connecting sleeve 323, the weight of the shelf 2 and the items on it is distributed to the first support rod 31 and the second support rod 36, helping to reduce the stress on individual support points and improve the load-bearing capacity of the lifting mechanism 3.

[0123] Furthermore, the first connecting sleeve 322 and the second connecting sleeve 323 can be installed simply by fitting them onto the support rod. This installation method is not only simple and quick, but also ensures a tight fit between the shelf connecting seat 32 and the support rod. The first connecting sleeve 322 and the second connecting sleeve 323 are independent components, so they can be easily disassembled and replaced, which helps users to easily disassemble and replace them during maintenance and inspection.

[0124] It should be noted that the sliding connection between the shelf connecting seat 32 and the first support rod 31 and the second support rod 36 can be achieved not only by the connecting sleeve being fitted onto the support rod in the above embodiment, but also by the cooperation of a slider and a slide rail, or by the cooperation of a gear and a rack. This embodiment does not make specific limitations on this.

[0125] For example, when the sliding connection between the shelf connecting seat 32 and the support rod is achieved through the sliding cooperation of the slider and the slide rail, a slide rail is set on the support rod, and a slider is set on the shelf connecting seat 32. The sliding connection between the shelf connecting seat 32 and the support rod is achieved by the slider sliding on the slide rail. The cooperation between the slider and the slide rail enables high-precision linear motion. Since the slide rail provides a stable motion trajectory, the slider can maintain a stable posture when sliding on it, reducing errors caused by shaking or tilting, and ensuring that the shelf 2 always remains horizontal during the lifting process, avoiding damage or falling of items due to shaking. Furthermore, the slider and slide rail cooperation scheme can significantly reduce frictional resistance and energy consumption. This not only improves the operating efficiency of the lifting mechanism 3, but also extends its service life.

[0126] In some embodiments, combined with Figure 4 and Figure 8 The second guide 35 and the fourth guide 38 are both mounted on the bracket 321, while the first guide 34, the second guide 35, the third guide 37, and the fourth guide 38 are all concealed by the bracket 321. That is to say, the guides are all hidden inside the bracket 321 and cannot be seen from the front opening 12 of the housing 1.

[0127] In this way, on the one hand, the bracket 321 provides a sheltered environment for all guide components, effectively preventing them from being damaged by the external environment, such as physical impacts and corrosion, thereby extending their service life. On the other hand, the guide components are concealed within the bracket 321, reducing their impact on the internal space of the refrigerator 100 and improving the utilization rate of the internal space. Furthermore, the bracket 321 conceals all guide components, ensuring that when the lifting mechanism 3 is installed in the storage compartment 11, details such as the guide components are not visible, resulting in a cleaner and more aesthetically pleasing overall appearance.

[0128] In some embodiments, such as Figure 9 and Figure 10 As shown, the winding rod 331 has a first through hole 3311 and a second through hole 3312. The first through hole 3311 and the second through hole 3312 penetrate the winding rod 331 radially. The first through hole 3311 and the second through hole 3312 are spaced apart axially along the winding rod 331. The second end of the first pull rope 332 extends into the first through hole 3311 and is fixedly connected to it. The second end of the second pull rope 333 extends into the second through hole 3312 and is fixedly connected to it. The first through hole 3311 and the second through hole 3312 penetrate the winding rod 331 radially, allowing the first pull rope 332 and the second pull rope 333 to extend into and be fixedly connected to these two through holes respectively. This increases the connection area between the pull rope and the winding rod 331, thereby improving the stability of the connection.

[0129] It is worth noting that there are multiple ways to fix the pull rope to the through hole. One method is to tie a knot at the second end of the pull rope and fix it in the through hole. Another method is to fix the second end of the pull rope in the through hole with a clip or glue. Yet another method can be used to ensure that the pull rope will not slip out of the through hole when it is under tension. This embodiment does not make any specific limitations on this method.

[0130] The winding rod 331 has a partition 3313, which is disposed on the outer periphery of the winding rod 331 and located between the first through hole 3311 and the second through hole 3312 along the axial direction of the winding rod 331.

[0131] During the rotation of the winding rod 331, the first pull rope 332 and the second pull rope 333 will become entangled on the winding rod 331. Since the first through hole 3311 and the second through hole 3312 do not separate the first pull rope 332 and the second pull rope 333, they will become entangled together during the winding process, which may result in knots. This makes it impossible to untangle them properly, which in turn prevents the shelf 2 from descending normally. If the winding rod 331 is forcibly rotated, the first pull rope 332 and the second pull rope 333 may break.

[0132] Therefore, a partition 3313 is provided between the first through hole 3311 and the second through hole 3312 along the axial direction of the winding rod 331 to separate the first pull rope 332 and the second pull rope 333, preventing them from getting tangled together during the winding process, ensuring that the shelf 2 can be raised and lowered normally, and also ensuring the service life of the pull rope.

[0133] It should be noted that the partition portion 3313 of the winding rod 331 can be an annular flange, a radial rib, or a partition plate, and this embodiment does not specifically limit it.

[0134] In some embodiments, such as Figure 10As shown, the winding rod 331 also includes a limiting part 3314, which is disposed on the outer periphery of the winding rod 331 and located at both ends of the winding rod 331 along the axial direction of the winding rod 331.

[0135] The limiting part 3314 prevents the pull rope from slipping or falling off the winding rod 331. During the winding process, the pull rope is tightly wound around the winding rod 331. Without the limiting part 3314, the pull rope may slip off the winding rod 331 due to excessive tension or external interference, causing the shelf 2 to suddenly fall. Therefore, the presence of the limiting part 3314 ensures that the pull rope is always kept in the predetermined position on the winding rod 331, thereby preventing the pull rope from slipping off both ends of the winding rod 331 during the winding process.

[0136] Furthermore, the limiting part 3314 can optimize the winding effect. By adjusting the position and shape of the limiting part 3314, the winding method and density of the pull rope on the winding rod 331 can be controlled. This helps ensure that the pull rope remains evenly distributed during the winding process, avoiding local over-winding or sparse winding. The optimized winding effect can improve the operating efficiency and reliability of the lifting mechanism 3.

[0137] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A refrigerator, characterized in that, include: A housing having a storage compartment and a front opening communicating with the storage compartment; A door is disposed at the front opening of the housing and is configured to open or close the front opening of the housing; A cooling device for cooling the storage compartment; Shelves, used for holding items; A lifting mechanism, disposed in the storage room, is used to adjust the height of the shelves. The lifting mechanism includes: A first support rod is vertically disposed in the storage chamber; A shelf connecting seat, wherein the shelf connecting seat is slidably connected to the first support rod, and the shelf is disposed on the shelf connecting seat; The driver component includes: A winding rod is rotatably mounted on the shelf connecting seat, and the winding rod is capable of rotating about its axis. A first pull rope, the first end of which is fixed to the first support rod and located above the shelf connecting seat, and the second end of which is wound around the winding rod.

2. The refrigerator according to claim 1, characterized in that, The lifting mechanism also includes: A first guide member is disposed on the shelf connecting seat, and a first pull rope is disposed around the first guide member. The first guide member is used to change the extension direction of the first pull rope so that the first pull rope between the first guide member and the first support rod extends in the vertical direction.

3. The refrigerator according to claim 2, characterized in that, The lifting mechanism also includes: The second guide is disposed on the shelf connecting seat. The first pull rope is disposed to pass around the first guide and the second guide in sequence. The second guide is used to change the extension direction of the first pull rope so that the first pull rope between the first guide and the second guide extends along a first horizontal direction, and the first pull rope between the second guide and the winding rod extends along a second horizontal direction, the second horizontal direction being perpendicular to the first horizontal direction.

4. The refrigerator according to claim 3, characterized in that, The winding rod is disposed on the side of the shelf connecting seat near the front opening of the housing, and the lifting mechanism further includes: The second support rod is arranged at intervals with the first support rod along the second horizontal direction, and both the first support rod and the second support rod are slidably connected to the shelf connecting seat; The second pull rope has its first end fixed to the second support rod and located above the shelf connecting seat. The second end of the second pull rope is wound around the winding rod. When the winding rod rotates in the first rotation direction, the first pull rope and the second pull rope can be wound together simultaneously. When the winding rod rotates in the second rotation direction, the first pull rope and the second pull rope can be unwound simultaneously. The second rotation direction is opposite to the first rotation direction. A third guide member is disposed on the shelf connecting seat, and the second pull rope is disposed around the third guide member. The third guide member is used to change the extension direction of the second pull rope so that the second pull rope between the third guide member and the second support rod extends in the vertical direction. A fourth guide is provided on the shelf connecting seat. The second pull rope is arranged to pass around the third guide and the fourth guide in sequence. The fourth guide is used to change the extension direction of the second pull rope so that the second pull rope between the third guide and the fourth guide extends in a first horizontal direction, and the second pull rope between the fourth guide and the winding rod extends in a second horizontal direction.

5. The refrigerator according to claim 4, characterized in that, The winding rod is located on the side of the shelf connecting seat near the front opening of the box, and is located at the center of the shelf connecting seat along the second horizontal direction; The second guide and the fourth guide are disposed on the side of the shelf connecting seat near the front opening of the box body, and are located at both ends of the shelf connecting seat along the second horizontal direction.

6. The refrigerator according to claim 4, characterized in that, The first guide, the second guide, the third guide, and the fourth guide are all fixed pulleys, and the rotation axes of the first guide and the third guide are arranged along the second horizontal direction, while the rotation axes of the second guide and the fourth guide are arranged along the vertical direction.

7. The refrigerator according to claim 6, characterized in that, The shelf connection seat includes: A support frame, wherein the shelf is disposed on the support frame; A first connecting sleeve is sleeved on the first support rod and connected to the bracket, and a first guide member is disposed on the first connecting sleeve; The second connecting sleeve is sleeved on the second support rod and connected to the bracket, and the third guide is disposed on the second connecting sleeve.

8. The refrigerator according to claim 7, characterized in that, The second guide and the fourth guide are both disposed on the bracket, and the first guide, the second guide, the third guide and the fourth guide are all shielded by the bracket.

9. The refrigerator according to claim 4, characterized in that, The winding rod is provided with a first through hole and a second through hole. The first through hole and the second through hole penetrate the winding rod radially. The first through hole and the second through hole are spaced apart along the axial direction of the winding rod. The second end of the first pull rope extends into the first through hole and is fixedly connected to the first through hole. The second end of the second pull rope extends into the second through hole and is fixedly connected to the second through hole. The winding rod has a partition portion disposed on the outer periphery of the winding rod and located between the first through hole and the second through hole along the axial direction of the winding rod.

10. The refrigerator according to claim 9, characterized in that, The winding rod also includes: A limiting part is provided on the outer periphery of the winding rod, and the limiting part is located at both ends of the winding rod along the axial direction of the winding rod.

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