Refrigeration device

Abstract

The utility model provides a refrigerating device. The refrigerating device comprises a box body, a roller assembly, a base, a connecting rod mechanism and a lifting adjusting assembly. The connecting rod mechanism is movably connected between the bottom of the box body and the base and can drive the base to lift relative to the box body; the connecting rod mechanism comprises a connecting rod assembly and a hinge rod assembly, the connecting rod assembly is slidably connected to the bottom of the box body, and the two ends of the hinge rod assembly are hinged to the connecting rod assembly and the base. The lifting adjusting assembly is in transmission connection with the connecting rod assembly; when the lifting adjusting assembly drives the connecting rod assembly to slide in the first direction, the hinge rod assembly is driven to rotate, and the base is driven to descend relative to the box body through the hinge rod assembly so that the base can make contact with the ground. When the lifting adjusting assembly drives the connecting rod assembly to slide in the second direction so as to drive the hinge rod assembly to reversely rotate in the horizontal direction, the hinge rod assembly drives the base to ascend relative to the box body, the base is made to be away from the ground, and the roller assembly can extend out of the base and make contact with the ground.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a refrigeration device. Background Art

[0002] A refrigerator is a device that maintains a constant low temperature to store items and is widely used in contemporary life or industrial production.

[0003] At present, a refrigerator generally comprises a refrigeration box body, and support feet are arranged at the bottom of the refrigeration box body, and the support feet can be used to support the refrigerator stably on the ground.

[0004] As the volume and weight of refrigerators become larger and larger, larger refrigerators are often heavier overall. During production, manufacturing, sales, and home use, it is more difficult to carry them, and often requires multiple adults to move them together, making them very inconvenient and difficult to move. Utility Model Content

[0005] The main purpose of the embodiments of the present application is to provide a refrigeration device.

[0006] To achieve the above purpose, the present application embodiment proposes a method:

[0007] One aspect of the present application provides a refrigeration device, comprising:

[0008] A housing forming an outer shell of the refrigeration device;

[0009] A roller assembly is fixed to the bottom of the box;

[0010] A base is liftably disposed below the bottom of the box, at least part of the roller assembly is located in a cavity of the base, an opening is provided at the bottom of the base, the opening is communicated with the cavity of the base, and the opening can allow the roller assembly to pass through;

[0011] A connecting rod mechanism is movably connected between the bottom of the box and the base, and the connecting rod mechanism can drive the base to rise and fall relative to the box; the connecting rod mechanism includes a connecting rod assembly and a hinged rod assembly, the connecting rod assembly is slidably connected to the bottom of the box, one end of the hinged rod assembly is hinged to the connecting rod assembly, and the other end of the hinged rod assembly is hinged to the base;

[0012] A lifting and lowering adjustment assembly, drivingly connected to the connecting rod assembly;

[0013] Wherein, when the lifting and adjusting assembly drives the connecting rod assembly to slide in the first direction, so as to drive the hinge rod assembly to rotate, and drive the base to descend relative to the box body through the hinge rod assembly, so that the base can contact the ground to support the box body;

[0014] When the lifting and adjusting assembly drives the connecting rod assembly to slide toward the second direction, thereby driving the hinged rod assembly to rotate in the opposite direction toward the horizontal direction, and drives the base to rise relative to the box body through the hinged rod assembly, so that the base is away from the ground, the roller assembly can extend to the outside of the base through the opening and contact the ground; the first direction is opposite to the second direction.

[0015] In some embodiments of the present application, the connecting rod assembly includes a first connecting rod and a second connecting rod, the first connecting rod is transmission-connected to the lifting and lowering adjustment assembly, the first connecting rod is connected to the second connecting rod, the second connecting rod is slidably connected to the bottom of the box, and both ends of the hinged rod assembly are hinged between the second connecting rod and the base;

[0016] The lifting adjustment assembly can drive the second connecting rod to slide toward the first direction through the first connecting rod, so that the second connecting rod can drive the hinge rod assembly to rotate and drive the base to descend relative to the box body;

[0017] The lifting and lowering adjustment assembly can drive the second connecting rod to slide toward the second direction through the first connecting rod, so that the second connecting rod can drive the hinge rod assembly to rotate in the opposite direction and drive the base to rise relative to the box.

[0018] In some embodiments of the present application, the lifting and adjusting assembly includes a screw rod, the extension direction of the screw rod is arranged parallel to the sliding direction of the second connecting rod, and the screw rod is rotatably arranged at the bottom of the box body;

[0019] The first connecting rod is provided with a threaded hole, the threaded hole extends horizontally, and the screw rod is rotatably connected in the threaded hole;

[0020] When the screw is rotated in one direction, the first connecting rod can move in the direction of one axial end of the screw, so that the first connecting rod can drive the second connecting rod to slide in the first direction;

[0021] When the screw rod rotates in another direction, the first connecting rod can move in the direction of the other axial end of the screw rod, so that the first connecting rod can drive the second connecting rod to slide toward the second direction.

[0022] In some embodiments of the present application, the lifting and adjusting assembly includes a fixing portion, the fixing portion is arranged at the bottom of the box body, the fixing portion is provided with a through hole, and one end of the screw rod is rotatably inserted into the through hole.

[0023] In some embodiments of the present application, the lifting and adjusting assembly includes a limiting portion and a limiting member, wherein the limiting portion and the limiting member are axially spaced apart and arranged on the screw rod, and the limiting portion and the limiting member are respectively located on opposite sides of the fixing portion, and the limiting portion and the limiting member can axially limit the screw rod on the fixing portion.

[0024] In some embodiments of the present application, a slide groove is provided at the bottom of the box body, and the slide groove is extended in the horizontal direction;

[0025] The second connecting rod is slidably arranged in the sliding groove, so that when the lifting and adjusting assembly drives the first connecting rod to move, the second connecting rod can slide along the sliding groove at the bottom of the box.

[0026] In some embodiments of the present application, the second connecting rod comprises two, and the two second connecting rods are arranged in parallel and spaced apart;

[0027] The bottom of the box body is respectively provided with two sliding grooves, and the two sliding grooves correspond to the second connecting rods one by one.

[0028] In some embodiments of the present application, the articulated rod assembly includes a first articulated rod and a rotating shaft, and two rotating shafts are provided, one of which is arranged at the hinge between the upper end of the first articulated rod and the second connecting rod, and the other rotating shaft is arranged at the hinge between the lower end of the first articulated rod and the base.

[0029] In some embodiments of the present application, the articulated rod assembly also includes a second articulated rod, the first articulated rod and the second articulated rod are arranged relative to each other, the first articulated rod and the second articulated rod are arranged on both sides of the second connecting rod, and the rotating shaft passes through part of the first articulated rod and the second connecting rod and is rotatably connected to the second articulated rod.

[0030] In some embodiments of the present application, the articulated rod assembly includes two groups, the two groups of articulated rod assemblies are arranged at intervals, and the two groups of articulated rod assemblies are rotatably connected to both ends of the second connecting rod respectively.

[0031] In some embodiments of the present application, a baffle is further included, wherein the baffle is connected to the outer side wall of the bottom of the box body;

[0032] The base includes a side plate and a bottom plate, the bottom plate is connected to one end of the side plate close to the ground, the bottom plate is provided with the opening, the side plate is liftably arranged on the inner side of the baffle, the baffle is provided with a connecting hole, and the screw rod is rotatably inserted into the connecting hole.

[0033] In some embodiments of the present application, the lifting and adjusting assembly also includes a knob, which is arranged on the screw rod. The knob is located on the outer side of the side wall of the screw rod protruding out of the baffle plate where the connecting hole is provided. The knob can drive the screw rod to rotate to move the connecting rod assembly.

[0034] In some embodiments of the present application, the base is provided with a guide cylinder, which is arranged at the bottom of the box body. The base is provided with a guide column, and the guide column can be raised and lowered into the interior of the guide cylinder. The guide cylinder can guide the lifting and lowering of the base through the guide column.

[0035] In some embodiments of the present application, a spring is further included, which is arranged inside the guide cylinder. The spring is nested on the outside of the guide column, and both ends of the spring are respectively abutted between the base and the bottom of the box body. The rising of the base can cause the spring to deform, wherein the elastic force of the spring is used to drive the base to reset downward.

[0036] In some embodiments of the present application, support feet are further included, and the support feet are arranged on the outer side of the bottom of the base. When the base is lowered, the support feet can be used to contact the ground to support the box; wherein the support feet include at least two.

[0037] In some embodiments of the present application, a mounting cover is further included, which is arranged at the bottom of the box body, the mounting cover is located above the base, the connecting rod assembly is slidably connected to a side wall of the mounting cover facing the ground, the mounting cover and the base are combined to form a mounting cavity, and the roller assembly is installed in the mounting cavity.

[0038] In some embodiments of the present application, a mounting seat and a mounting column are further included, the mounting cover is provided with a connecting port, one end of the mounting column is connected to the bottom of the box body through the connecting port, and the other end of the mounting column is connected to the mounting seat to form a spacing space between the mounting seat and the bottom of the box body, the sliding connection between the connecting rod assembly and the mounting cover is located in the spacing space, and the lifting and lowering adjustment assembly is located in the spacing space.

[0039] Beneficial effects:

[0040] The present application discloses a refrigeration device, including a box, a roller assembly, a base, a connecting rod mechanism and a lifting and adjusting assembly. A connecting rod mechanism is movably arranged between the base and the bottom of the box, and a lifting and adjusting assembly is arranged to be transmission-connected with the connecting rod mechanism, so that the base can be lifted relative to the bottom of the box by adjusting the lifting and adjusting assembly to drive the connecting rod mechanism to move. Furthermore, a base is arranged at the bottom of the box, and an opening connected to the cavity is provided at the bottom of the base, so that the roller assembly can be extended or retracted to the outside of the base as needed. When the refrigerator needs to be moved, the connecting rod mechanism is driven by the lifting and adjusting assembly to raise the base, and the roller assembly is extended to contact the ground, so as to facilitate rolling movement. After the refrigerator is moved or the refrigerator is used normally, the base is lowered by driving the connecting rod mechanism by the lifting and adjusting assembly, and the base is supported on the ground. Among them, the connecting rod mechanism is composed of a connecting rod assembly and a hinged rod assembly, and the effective transmission and conversion of force are realized through the hinged and sliding connection between the two. When the lifting and adjusting assembly is in action, it can drive the connecting rod assembly to slide at the bottom of the box body, thereby driving the hinged rod assembly to rotate in different directions, which not only ensures the stability and reliability of the lifting process, but also makes the lifting and lowering operation of the base simple and easy. The refrigeration device disclosed in the present application drives the connecting rod mechanism to drive the base to lift and lower through the lifting and adjusting assembly, so that the refrigerator can be quickly and stably supported on the ground when it needs to be fixed, and can be quickly converted to a rolling mode when it needs to be moved, so that the movement and transportation of the refrigeration device can be easily realized, and the manpower and material costs required for moving the refrigeration device are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a three-dimensional schematic diagram of a refrigeration device according to an embodiment of the present application;

[0042] Figure 2 for Figure 1 A three-dimensional schematic diagram of a base;

[0043] Figure 3 for Figure 2 One of the partial exploded views;

[0044] Figure 4 for Figure 2 This is the second partial explosion diagram;

[0045] Figure 5 It is a transmission connection diagram of the connecting rod mechanism and the lifting and lowering adjustment component;

[0046] Figure 6 for Figure 1 A schematic cross-sectional view of the middle base descending to the ground;

[0047] Figure 7 for Figure 6 A partial enlarged view of the bottom of

[0048] Figure 8 for Figure 1 A schematic cross-sectional view of the middle base rising;

[0049] Fig. 9 for Figure 8 A partial enlarged view of the bottom of

[0050] Fig.10 for Figure 1 A schematic diagram of a lifting and lowering adjustment component;

[0051] Fig.11 for Fig.10 An exploded view of

[0052] Fig.12 for Figure 7 A local enlarged view of point A;

[0053] Fig.13 for Fig. 9 A partial enlarged view of point B;

[0054] Fig.14 for Figure 1 A cross-sectional view of

[0055] Fig.15 for Fig.14 A partial enlarged view of point C.

[0056] The corresponding relationship between the reference numerals and the component names is as follows:

[0057] 1 box body, 101 refrigeration compartment, 102 slide, 11 box door, 12 supporting foot, 13 slide part, 131 limiting rib, 132 connecting rib;

[0058] 2 roller assembly, 21 roller, 22 rubber pad;

[0059] 3 base, 301 opening, 302 avoidance hole, 31 side plate, 32 bottom plate;

[0060] 4 connecting rod mechanism, 401 threaded hole, 41 connecting rod assembly, 411 first connecting rod, 412 second connecting rod, 42 hinged rod assembly, 421 first hinged rod, 422 rotating shaft, 423 second hinged rod;

[0061] 5 lifting adjustment assembly, 51 screw rod, 52 limiting part, 53 limiting member, 54 knob;

[0062] 6 fixing part, 601 perforation;

[0063] 71 baffle, 72 mounting cover, 701 connecting hole, 702 communication port;

[0064] 81 guide cylinder, 82 guide column, 83 spring;

[0065] 91 mounting seat, 92 mounting column, 901 groove. DETAILED DESCRIPTION

[0066] The present application provides a refrigeration device. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0067] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0068] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0069] As the volume and weight of refrigerators become larger and larger, larger refrigerators are often heavier overall. During production, manufacturing, sales, and home use, it is more difficult to carry them, and often requires multiple adults to move them together, making them very inconvenient and difficult to move.

[0070] The refrigeration device of the embodiment of the utility model can be a refrigeration cabinet such as a freezer or a refrigerator. The following takes a refrigerator as an example to describe in detail the improved technical solution of the refrigeration device of the embodiment of the utility model.

[0071] Figure 1 It is a three-dimensional schematic diagram of a refrigeration device according to an embodiment of the present application.

[0072] See also Figure 1 As shown, the refrigerator provided by the embodiment of the utility model may include a box body 1. The box body 1 may adopt a hollow structure such as a rectangular parallelepiped. The box body 1 forms an outer shell of the refrigerator. It should be noted that the box body 1 may also adopt a hollow shell structure of other shapes.

[0073] In some embodiments, a refrigeration compartment 101 may be provided inside the box body 1. The refrigeration compartment 101 may be provided as a plurality of refrigeration compartments 101.

[0074] In some embodiments, the multiple refrigeration compartments 101 can be used as independent storage spaces, such as a freezer, a refrigerator, and a temperature-changing chamber, etc., to meet different refrigeration requirements such as freezing, refrigeration, and temperature-changing according to different types of food, and store items that need to be refrigerated or frozen. The multiple refrigeration compartments 101 can be arranged in upper and lower partitions, or in left and right partitions.

[0075] See also Figure 1 As shown, in some embodiments, the refrigerator may include a door 11. The door 11 may be hinged to the front side of the cabinet 1 to open and close the refrigeration compartment 101.

[0076] It should be noted that a plurality of cabinet doors 11 can be provided. The cabinet doors 11 can be provided one-to-one with the refrigeration compartments 101. Multiple cabinet doors 11 can open and close a refrigeration compartment 101 at the same time. One cabinet door 11 can also open and close multiple refrigeration compartments 101 at the same time.

[0077] In some embodiments, the refrigerator may include a refrigeration system. The refrigeration system may be arranged inside the box body 1. The refrigeration system may be used to provide cold air inside the refrigerator to maintain a low temperature environment in each storage chamber.

[0078] In some embodiments, the refrigeration system may include a compressor (not shown). The compressor may serve as a power source for the refrigeration cycle, sucking in low-temperature, low-pressure refrigerant gas and compressing it into high-temperature, high-pressure gas. The compressor may deliver high-temperature, high-pressure refrigerant to the condenser.

[0079] In some embodiments, the refrigeration system may include a condenser (not shown). The compressor may deliver the compressed refrigerant to the condenser. The condenser may condense high-temperature and high-pressure refrigerant vapor.

[0080] In some embodiments, the refrigeration system may include a throttling device (not shown). The condenser may deliver the condensed refrigerant to the throttling device. The throttling device may be a capillary tube. The throttling device may be used to throttle and reduce the pressure of the refrigerant.

[0081] In some embodiments, the refrigeration system may include an evaporator (not shown). The throttling device may deliver the throttled and depressurized refrigerant to the evaporator. The evaporator may be used to evaporate and boil the refrigerant vapor so as to absorb the heat of the surrounding medium.

[0082] In some embodiments, the compressor, the condenser, the throttling device, and the evaporator may be sequentially connected to form a refrigeration circuit. The refrigerant may circulate in the refrigeration circuit to achieve refrigeration of the interior of the box 1.

[0083] In some embodiments, a press chamber (not shown) may be provided in the box body 1. The press chamber may be provided in the bottom area of ​​the box body 1. The press chamber may be located at the rear lower side of the storage compartment. A compressor, a condenser, a throttling device, etc. may be provided in the press chamber.

[0084] In some embodiments, an evaporator bin (not shown) may be provided in the housing 1. An evaporator may be provided in the evaporator bin. The evaporator may be used to absorb heat in the evaporator bin, so that a large amount of cold air is formed in the evaporator bin. The cold air is transported to the storage room, so that a low-temperature storage function can be achieved in the storage room.

[0085] In some embodiments, an air duct assembly may be provided in the housing 1. An air supply duct (not shown) may be formed in the air duct assembly. The air supply duct may connect the evaporator and the refrigeration compartment 101 to deliver cold air to the refrigeration compartment 101, thereby realizing the low-temperature storage function in the refrigeration compartment 101.

[0086] Please see attached Figure 1 In some embodiments, the refrigerator may include a roller assembly 2. The roller assembly 2 may be fixed to the bottom of the box. The provision of the roller assembly 2 enables the refrigeration device to be easily moved when needed.

[0087] Figure 2 for Figure 1 A three-dimensional schematic diagram of a base; Figure 3 for Figure 2 One of the partial exploded views; Figure 4 for Figure 2 This is the second partial explosion diagram.

[0088] Please see attached Figure 2 and attached Figure 3 In some embodiments, the refrigerator may include a base 3. The base 3 is arranged below the bottom of the box body in a liftable manner. At least part of the roller assembly 2 may be located in the cavity of the base 3. In this way, when the roller assembly 2 is needed to conveniently move the refrigerator, the user can lift the base 3 so that the roller assembly 2 contacts the ground; when the refrigerator does not need to be moved, the user can lift the base 3 so that the base 3 contacts the ground to support the ground.

[0089] like Figure 1As shown, in some embodiments, the bottom of the base 3 may be provided with an opening 301. The opening 301 is connected to the cavity of the base 3, and the opening 301 can allow the roller assembly 2 to pass through. By arranging the roller assembly 2 in the cavity of the base 3, the space occupied by the refrigerator when the roller assembly 2 is not in use can be reduced, and in the process of the base 3 being raised and lowered relative to the bottom of the box body, the roller assembly 2 can extend out of the cavity of the base 3 through the opening 301 and then contact the ground, so that the refrigerator as a whole can be pushed conveniently by the roller assembly 2.

[0090] Figure 5 It is a schematic diagram of the transmission connection between the connecting rod mechanism and the lifting and lowering adjustment component.

[0091] like Figure 4 As shown, in some embodiments, the refrigerator may include a connecting rod mechanism 4. The connecting rod mechanism 4 may be movably connected between the bottom of the box and the base 3. The connecting rod mechanism 4 can drive the base 3 to rise and fall relative to the box. By setting the connecting rod mechanism 4, the base 3 can be effectively driven to rise and fall relative to the box, wherein the connecting rod mechanism 4 can be retracted and stored at the bottom of the refrigerator when the base 3 is not in use, thereby reducing the overall space occupied by the refrigerator.

[0092] like Figure 3 and Figure 4 As shown, in some embodiments, the connecting rod mechanism 4 may include a connecting rod assembly 41. The connecting rod assembly 41 may be slidably connected to the bottom of the box. The connecting rod assembly can slide along a preset track at the bottom of the box, and the connecting rod assembly 41 can move along a fixed path when driven, thereby achieving lifting motion.

[0093] like Figure 5 As shown, in some embodiments, the connecting rod mechanism 4 may include an articulated rod assembly 42. The connecting rod assembly 41 may be slidably connected to the bottom of the box. One end of the articulated rod assembly 42 is hinged to the connecting rod assembly 41, and the other end of the articulated rod assembly 42 is hinged to the base 3. The articulated rod assembly 42 is a bridge connecting the connecting rod assembly 41 and the base 3. One end of the articulated rod assembly 42 is connected to the connecting rod assembly 41 by an articulated manner, so that the two can rotate relative to each other; the other end of the articulated rod assembly 42 is also connected to the base 3 by an articulated manner to achieve connection with the base 3 and angle adjustment.

[0094] like Figure 4 As shown, in some embodiments, the refrigerator may include a lifting and adjusting assembly 5. The lifting and adjusting assembly 5 is transmission-connected to the connecting rod assembly 41. The lifting and adjusting assembly 5 may be used to drive the connecting rod assembly 41 to move, and the user may operate the lifting and adjusting assembly 5 to convert the connecting rod assembly 41 into a lifting and lowering movement of the base 3.

[0095] In some embodiments, the transmission connection structure between the lifting adjustment assembly 5 and the connecting rod assembly 41 can be a gear, a belt, a chain or a screw 51, etc.

[0096] Figure 6 for Figure 1 A schematic cross-sectional view of the middle base descending to the ground; Figure 7 for Figure 6 A partial enlarged view of the bottom of Figure 8 for Figure 1 A schematic cross-sectional view of the middle base rising; Fig. 9 for Figure 8 A partial enlarged view of the bottom of

[0097] Please see attached Figure 6 and Figure 7 As shown, in some embodiments, the lifting and adjusting assembly 5 can drive the connecting rod assembly 41 to slide in the first direction to drive the hinged rod assembly 42 to rotate, and drive the base 3 to descend relative to the box through the hinged rod assembly 42, so that the base 3 can contact the ground to support the box.

[0098] Specifically, when the lifting and lowering adjustment assembly 5 drives the connecting rod assembly 41 to slide in the first direction, the hinged rod assembly 42 hinged thereto rotates as the connecting rod assembly 41 slides, thereby causing the other end of the hinged rod assembly 42 connected to the base 3 to move downward, thereby driving the base 3 to descend relative to the cabinet. The base 3 descends until its bottom contacts the ground and firmly supports the cabinet. At this time, the refrigerator is in a stable state and can perform normal refrigeration, freezing or other functions.

[0099] Please see attached Figure 8 and Fig. 9 As shown, in some embodiments, the lifting and adjusting assembly 5 can drive the connecting rod assembly 41 to slide toward the second direction to drive the hinged rod assembly 42 to rotate in the opposite direction toward the horizontal direction, and drive the base 3 to rise relative to the box through the hinged rod assembly 42, so that the base 3 is away from the ground, and the roller assembly 2 can extend to the outside of the base 3 through the opening 301 and contact the ground; the first direction is opposite to the second direction.

[0100] Specifically, when the lifting and adjusting assembly 5 drives the connecting rod assembly 41 to slide in the second direction, as the connecting rod assembly 41 slides, the hinge rod assembly 42 is subjected to the pulling force or pushing force of the connecting rod assembly 41 and rotates in the opposite direction, so that the base 3 rises relative to the box body and gradually moves away from the ground. At the same time, as the base 3 rises, the roller assembly 2 originally located inside the base 3 extends to the outside of the base 3 through the opening 301 and contacts the ground. The existence of the roller assembly 2 allows the refrigerator to slide easily on the ground and is easy to move.

[0101] like Figure 7As shown, in some embodiments, when the base 3 contacts the ground and supports the box, the roller assembly can be in a state of not contacting the ground. At this time, the base 3 can make the entire box stably set on the ground.

[0102] It should be noted that, in some other embodiments, when the base 3 contacts the ground and supports the box, the roller assembly may be in contact with the ground. At this time, due to the supporting effect of the base 3, the entire box may be stably set on the ground.

[0103] like Figure 7 As shown, in some embodiments, the refrigerator may include support legs 12. The support legs 12 may be provided on the outside of the bottom of the base 3, and when the base 3 is lowered, the support legs 12 may be used to contact the ground to support the box. By providing the support legs 12 on the outside of the bottom of the base 3, when the base 3 is lowered and contacts the ground to support the box, the support legs 12 serve as additional support points, which can further increase the stability and balance of the refrigerator as a whole. In this way, even when the refrigerator is placed on an uneven ground, it can remain stable and not shake.

[0104] In some embodiments, the support legs 12 can be configured to be height-adjustable. By adjusting the height of the support legs 12, the refrigerator can better adapt to floors of different heights, ensuring that the cabinet remains horizontal, which is beneficial to the normal operation of the internal refrigeration system and the long-term preservation of food.

[0105] In some embodiments, the supporting legs 12 may include at least two.

[0106] like Figure 1 As shown, in some embodiments, there may be four supporting legs 12. The four supporting legs 12 are respectively arranged at the four corners of the base 3 to ensure that the refrigerator has stable supporting points at the four corners, thereby maximizing the stability of the refrigerator and preventing it from tilting.

[0107] like Figure 3 and Figure 4 As shown, in some embodiments, the connecting rod assembly 41 may include a first connecting rod 411. The first connecting rod 411 may be transmission-connected with the lifting and adjusting assembly 5, and the lifting and adjusting assembly 5 may drive the first connecting rod 411 to move.

[0108] like Figure 5 As shown, in some embodiments, the articulated rod assembly 42 can be hinged between the first connecting rod 411 and the base 3. Driven by the lifting and lowering adjustment assembly 5, the first connecting rod 411 can slide along the bottom of the box, thereby driving the articulated rod assembly 42 to rotate, so that the base 3 hinged to the articulated rod assembly 42 can be raised and lowered.

[0109] like Figure 4As shown, in some embodiments, the connecting rod assembly 41 may include a second connecting rod 412. The first connecting rod 411 may be connected to the second connecting rod 412. The second connecting rod 412 may be slidably connected to the bottom of the box. Both ends of the hinged rod assembly 42 may be hinged between the second connecting rod 412 and the base 3. Since the second connecting rod 412 is connected to the first connecting rod 411 and slidably connected to the bottom of the box, the force of the lifting adjustment assembly 5 acting on the first connecting rod 411 can be transmitted to the second connecting rod 412, so that when the second connecting rod 412 slides along the bottom of the box, the hinged rod assembly 42 hinged between the second connecting rod 412 and the base 3 can drive the base 3 to rise and fall.

[0110] Specifically, the lifting and lowering adjustment component 5 can drive the second link 412 to slide in the first direction through the first link 411, so that the second link 412 can drive the hinged rod component 42 to rotate and drive the base 3 to descend relative to the box. The lifting and lowering adjustment component 5 can drive the second link 412 to slide in the second direction through the first link 411, so that the second link 412 can drive the hinged rod component 42 to rotate in the opposite direction and drive the base 3 to rise relative to the box.

[0111] Please see attached Figure 5 , the first direction may refer to the right direction, and the second direction may refer to the left direction.

[0112] In some embodiments, the second connecting rod 412 may include two. The two second connecting rods 412 are arranged in parallel and spaced apart. The two second connecting rods 412 can be connected to the two ends of the first connecting rod 411 respectively, and the two second connecting rods 412 arranged in parallel and spaced apart can further enhance the stability and carrying capacity of the connecting rod assembly. When the second connecting rod 412 is simultaneously subjected to the driving force of the first connecting rod 411, the force can be dispersed more evenly, reducing the risk of single-point force, making the lifting process of the base 3 smoother, reducing the vibration or shaking caused by uneven force, thereby enhancing the stability of the refrigerator during the lifting process. Moreover, the two second connecting rods 412 are arranged in parallel and spaced apart, which is conducive to the second connecting rod 412 being able to slide along a common direction, and then it is conducive to driving the hinged rod assembly 42 to drive the base 3 to perform efficient and stable lifting and lowering movements.

[0113] like Figure 4As shown, in some embodiments, a slide groove 102 may be provided at the bottom of the box. The slide groove 102 may be arranged to extend in the horizontal direction. The second connecting rod 412 may be slidably arranged in the slide groove 102, so that when the lifting and adjusting assembly 5 drives the first connecting rod 411 to move, the second connecting rod 412 can slide along the slide groove 102 at the bottom of the box. By providing the slide groove 102 at the bottom of the box, a stable and precise sliding track can be provided for the second connecting rod 412. The slide groove 102 can not only limit the movement direction of the second connecting rod 412, but also facilitate the stability and non-deflection of the second connecting rod 412 during the sliding process. Further, as Figure 7 and Figure 8 As shown, the movement direction of the second connecting rod 412 is horizontal movement.

[0114] like Figure 4 and Figure 5 As shown, in some embodiments, two slide grooves 102 may be provided at the bottom of the box. The two slide grooves 102 correspond to the second connecting rods 412 one by one. Among them, the two slide grooves 102 provided at the bottom of the box correspond to the two second connecting rods 412 respectively, and an independent sliding track may be provided for each second connecting rod 412. The two second connecting rods 412 may slide along their respective slide grooves 102 respectively, thereby driving the hinge rod assembly 42 to rotate, which is beneficial to improving the accuracy and stability of the lifting process of the base 3.

[0115] It should be noted that the number of the slide grooves 102 can be designed according to the number of the second connecting rods 412 .

[0116] like Figure 5 As shown, in some embodiments, a slide groove portion 13 may be provided at the bottom of the box body. The slide groove portion 13 may include two relatively arranged limiting ribs 131, the limiting ribs 131 are connected to the outer side wall of the bottom of the box body, and the two limiting ribs 131 are arranged at intervals to form a slide groove 102. By relatively arranging the two limiting ribs 131 and arranging them at intervals, the space between the limiting ribs 131 is the slide groove 102, wherein the setting of the limiting ribs 131 can support and guide the sliding of the second connecting rod 412 in the slide groove 102.

[0117] like Figure 4As shown, in some embodiments, the slide groove 102 may include a connecting rib 132. The connecting rib 132 may be connected between two limiting ribs 131, and the connecting rib 132 is located on one end of the outer side wall of the limiting rib 131 away from the bottom of the box body. The connecting rib 132, the limiting rib 131 and the outer side wall of the bottom of the box body are surrounded to form the slide groove 102. The connecting rib 132 can be used as a structural reinforcement, which not only enhances the connection strength between the limiting ribs 131, but also the slide groove 102 is formed by the connecting rib 132, the limiting rib 131 and the outer side wall of the bottom of the box body. In this way, the slide groove 102 has a clear boundary and depth, which can provide more accurate positioning and guidance for the sliding of the second connecting rod 412.

[0118] like Figure 5 As shown, in some embodiments, one end of the second connecting rod 412 is connected to the first connecting rod 411, and the other end of the second connecting rod 412 is spaced from the outer side wall of the bottom of the box body so as to extend into the slide groove 102. The connecting rib 132 is located below the second connecting rod 412, and during the lifting and lowering process of the base 3, the connecting rib 132 can also play a certain supporting and supporting role for the second connecting rod 412.

[0119] In some embodiments, the articulated rod assembly 42 may include two groups. The two groups of articulated rod assemblies 42 may be arranged at intervals. The two groups of articulated rod assemblies 42 may be arranged at intervals in the horizontal direction, further making the lifting mechanism structurally stable and enabling it to withstand a larger load.

[0120] In some embodiments, the two sets of hinged rod assemblies 42 are rotatably connected to the two ends of the second connecting rod 412. The spacing arrangement of the two sets of hinged rod assemblies 42 can make the structure of the connecting rod mechanism 4 more stable and reduce the risk of vibration and shaking.

[0121] In some embodiments, one set of the articulated rod assemblies 42 may be disposed near the left end of the second link 412 , and the other set of the articulated rod assemblies 42 may be disposed near the right end of the second link 412 .

[0122] In some embodiments, multiple groups of hinge rod assemblies 42 can be provided according to the requirements of structural design.

[0123] like Figure 4 and Figure 5 As shown, in some embodiments, the hinge rod assembly 42 may include a first hinge rod 421. The first hinge rod 421 may serve as a main force-bearing component in the hinge rod assembly 42, and the first hinge rod 421 may convert the sliding motion of the second connecting rod 412 into the lifting motion of the base 3.

[0124] In some embodiments, the hinge rod assembly 42 may include a rotating shaft 422. Two rotating shafts 422 may be provided. One rotating shaft 422 may be provided at the hinge between the upper end of the first hinge rod 421 and the second connecting rod 412, and the other rotating shaft 422 may be provided at the hinge between the lower end of the first hinge rod 421 and the base 3.

[0125] Specifically, one of the rotating shafts 422 is located at the upper end of the first hinge rod 421 and is connected to the hinge of the second connecting rod 412. When the second connecting rod 412 slides in the slide slot 102, it can drive the first hinge rod 421 to rotate around the rotating shaft 422 through the rotating shaft 422. The other rotating shaft 422 is located at the lower end of the first hinge rod 421 and is connected to the hinge of the base 3. With the rotation of the first hinge rod 421, the base 3 will move up and down around the second rotating shaft 422, thereby realizing the movement conversion from the sliding of the connecting rod mechanism 4 to driving the base 3 to move up and down.

[0126] In some embodiments, the hinge rod assembly 42 may include a second hinge rod 423. The first hinge rod 421 and the second hinge rod 423 are arranged at a relative interval. The first hinge rod 421 and the second hinge rod 423 are arranged on both sides of the second connecting rod 412. The rotating shaft 422 passes through the first hinge rod 421 and the second connecting rod 412 and is rotatably connected to the second hinge rod 423. By arranging the second hinge rod 423 that is relatively spaced from the first hinge rod 421, the structure and size of the second hinge rod 423 can be the same as those of the first hinge rod 421. Moreover, the first hinge rod 421 and the second hinge rod 423 are respectively located on both sides of the second connecting rod 412, which is conducive to balancing the force distribution of the hinge rod assembly 42 and reducing the risk of single-point force. In this way, the second connecting rod 412 can be supported and guided by the two hinge rods at the same time during the sliding process, thereby improving the stability and reliability of the lifting process.

[0127] like Figure 4 and Figure 5 As shown, in some embodiments, the connecting rod assembly 41 may include a first connecting rod 411 and a second connecting rod 412. The first connecting rod 411 is transmission-connected to the lifting and adjusting assembly 5, the first connecting rod 411 is connected to the second connecting rod 412, the second connecting rod 412 is slidably connected to the bottom of the box, and both ends of the articulated rod assembly 42 are hinged between the second connecting rod 412 and the base 3.

[0128] In some embodiments, the lifting adjustment assembly 5 can drive the second connecting rod 412 to slide toward the first direction through the first connecting rod 411, so that the second connecting rod 412 can drive the hinge rod assembly 42 to rotate and drive the base 3 to descend relative to the box.

[0129] In some embodiments, the lifting adjustment assembly 5 can drive the second connecting rod 412 to slide in the second direction through the first connecting rod 411, so that the second connecting rod 412 can drive the hinge rod assembly 42 to rotate in the opposite direction and drive the base 3 to rise relative to the box.

[0130] Fig.10 for Figure 1 A schematic diagram of a lifting and lowering adjustment component; Fig.11 for Fig.10 An exploded view of Fig.12 for Figure 7 A partial enlarged view of point A.

[0131] See also Fig.10 and Fig.11 In some embodiments, the lifting and adjusting assembly 5 may include a screw 51. The extending direction of the screw 51 is arranged in parallel with the sliding direction of the second connecting rod 412, and the screw 51 is rotatably arranged at the bottom of the box. Among them, the extending direction of the screw 51 is arranged in parallel with the sliding direction of the second connecting rod 412, which is conducive to directly and efficiently converting the rotational motion of the screw 51 into the linear sliding motion of the second connecting rod 412. When the screw 51 rotates, a pushing force or pulling force can be generated along its axial direction, and this force will be transmitted along the same path as the sliding direction of the second connecting rod 412, thereby driving the second connecting rod 412 to slide.

[0132] like Figure 4 As shown, in some embodiments, the first connecting rod 411 may be provided with a threaded hole 401. The threaded hole 401 may extend horizontally, and the screw 51 is rotatably connected in the threaded hole 401. Among them, by extending the threaded hole 401 in the horizontal direction, when the screw 51 rotates, a force can be applied to the first connecting rod 411 in the horizontal direction. Furthermore, the external thread of the screw 51 matches the internal thread of the threaded hole 401, and the relative movement between the two is achieved by rotating the screw 51, and the threaded fit has high transmission efficiency and stability, which is conducive to the smooth transmission of power during the lifting and adjusting process. At the same time, since the contact area between the screw 51 and the threaded hole 401 is large and evenly distributed, it can withstand large loads and impacts.

[0133] Specifically, during the rotation of the driving screw 51, due to the interaction between the screw 51 and the first connecting rod 411, the screw 51 generates a thrust or pull along the axial direction of the first connecting rod 411. Under the action of the thrust or pull, the first connecting rod 411 moves along the axial direction of the screw 51. Since the first connecting rod 411 is connected to the second connecting rod 412, the second connecting rod 412 drives the hinge rod assembly 42 to drive the base 3 to rise or fall.

[0134] like Figure 4 and Fig.10 As shown, in some embodiments, when the screw rod 51 rotates in one direction, the first connecting rod 411 can move in the direction of one axial end of the screw rod 51, so that the first connecting rod 411 can drive the second connecting rod 412 to slide in the first direction. Specifically, when the screw rod 51 rotates in one direction, due to the interaction of the threads, the first connecting rod 411 will move along the axial end of the screw rod 51, and this movement will be transmitted to the base 3 through the connecting rod assembly 41, thereby driving the base 3 to descend relative to the box.

[0135] In some embodiments, when the screw rod 51 rotates in the other direction, the first connecting rod 411 can move in the direction of the other axial end of the screw rod 51, so that the first connecting rod 411 can drive the second connecting rod 412 to slide in the second direction. Specifically, in the opposite direction of the above-mentioned rotation direction, when the screw rod 51 rotates in the other direction, the first connecting rod 411 will move along the other axial end of the screw rod 51, and this reverse movement will drive the second connecting rod 412 to slide in the second direction, and drive the base 3 to rise relative to the box body through the hinge rod assembly 42.

[0136] It should be noted that the rotation direction of the screw rod 51 includes forward rotation and reverse rotation, that is, clockwise rotation and counterclockwise rotation.

[0137] like Fig.10 and Fig.11 As shown, in some embodiments, the lifting and adjusting assembly 5 can include a fixing portion 6. The fixing portion 6 can be arranged at the bottom of the box. The screw 51 is rotatably arranged on the fixing portion 6. By arranging the fixing portion 6 at the bottom of the box, the fixing portion 6 can stably support the screw 51 and prevent the screw 51 from deflecting or shaking during rotation. The main function of the fixing portion 6 is to provide a stable mounting base for the screw 51 so that the screw 51 can be fixed to the box, and can be rotatably arranged by the fixing portion 6.

[0138] like Fig.11 As shown, in some embodiments, the fixing portion 6 may be provided with a through hole 601, and one end of the screw rod 51 may be rotatably inserted into the through hole 601. By providing the through hole 601 on the fixing portion 6, one end of the screw rod 51 may be allowed to pass through and cooperate with it. Among them, the diameter of the through hole 601 may be slightly larger than the outer diameter of the screw rod 51 to ensure that the screw rod 51 can pass through smoothly and rotate freely in the through hole 601. In this way, the through hole 601 not only provides a channel for the screw rod 51, but also provides a certain support to the screw rod 51 through its inner wall, thereby reducing the vibration and noise of the screw rod 51 during the rotation process and improving its working stability.

[0139] like Fig.11As shown, in some embodiments, the lifting and lowering adjustment assembly 5 may include a limiting portion 52. The limiting portion 52 may be disposed on the screw rod 51, and the limiting portion 52 may limit the movement of one axial end of the screw rod 51.

[0140] In some embodiments, the limiting portion 52 may be fixed on the screw rod 51 , and the limiting portion 52 may be integrally formed with the screw rod 51 .

[0141] like Fig.11 and Fig.12 As shown, in some embodiments, the lifting and adjusting assembly 5 may include a limiter 53. The limiter 52 and the limiter 53 may be arranged on the screw 51 at intervals in the axial direction. The limiter 52 and the limiter 53 are respectively located on opposite sides of the fixing portion 6, and the limiter 52 and the limiter 53 can limit the screw 51 axially on the fixing portion 6. When the screw 51 is subjected to external force during rotation, the screw 51 will move axially without being limited. By axially arranging the limiter 52 and the limiter 53 on the screw 51, and they are respectively located on opposite sides of the fixing portion 6, under the joint action of the limiter 52 and the limiter 53, the movement of the screw 51 to both ends of the axial direction can be limited, ensuring that the screw 51 remains within a predetermined position range, and preventing the screw 51 from falling off.

[0142] In some embodiments, the limiting member 53 may be a nut, a screw nut, etc.

[0143] like Figure 2 and Figure 3 As shown, in some embodiments, the refrigerator may include a baffle 71. The baffle 71 may be connected to the outer side wall of the bottom of the box body. The base 3 may be arranged on the inner side of the baffle 71. In this way, the side plate 31 can move up and down along the inner side wall of the baffle 71, thereby driving the entire base 3 to move up and down. The arrangement of the side plate 31 can provide a stable support and guide for the lifting movement of the base 3, and the baffle 71 can also provide an installation space for the base 3 and the connecting rod mechanism 4 installed inside the base 3.

[0144] like Figure 3 and Figure 7 As shown, in some embodiments, the base 3 may include a side plate 31. The side plate 31 is arranged on the inner side of the baffle 71 in a liftable manner. In this way, when the lifting adjustment component 5 drives the connecting rod mechanism 4 and then drives the base 3 to lift relative to the bottom of the box, the side plate 31 can move along the baffle 71, thereby limiting the circumferential movement of the base 3 as a whole, which is conducive to improving the stability and accuracy of the lifting movement of the base 3.

[0145] like Figure 3 and Figure 7As shown, in some embodiments, the base 3 may include a bottom plate 32. The bottom plate 32 may be connected to one end of the side plate 31 close to the ground. The bottom plate 32 may be provided with an opening 301, and the baffle 71 may be provided with a connecting hole 701, and the screw 51 may be rotatably inserted into the connecting hole 701. In this way, the connecting hole 701 provided on the baffle 71 may allow one end of the screw 51 to extend out of the baffle 71, so that the user can directly drive the screw 51 to rotate by rotating the portion extending out of the baffle 71.

[0146] like Figure 3 and Figure 4 As shown, in some embodiments, a side plate 31 may be provided with an avoidance hole 302 at a position corresponding to the connection hole 701. The screw rod 51 may sequentially pass through the connection hole 701 and the avoidance hole 302 and extend into the cavity formed between the side plate 31 and the bottom plate 32. By providing the avoidance hole 302 on the side plate 31, the screw rod 51 may pass through the side plate 31 and extend into the cavity of the base 3, and then be transmission-connected with the connecting rod mechanism 4 in the cavity.

[0147] In some embodiments, the avoidance hole 302 can be opened along the lifting direction of the base 3. The extending direction of the avoidance hole 302 is consistent with the lifting direction of the base 3, so that the screw rod 51 will not be blocked or deviate from the predetermined trajectory when passing through the avoidance hole 302, which is beneficial to the reliability of the transmission connection between the lifting adjustment component 5 and the connecting rod mechanism 4.

[0148] In some embodiments, the avoidance hole 302 may be in the shape of an elongated strip, and the length direction of the elongated strip may be extended along the lifting direction of the base 3 .

[0149] like Figure 2 and Figure 3 As shown, in some embodiments, the lifting adjustment assembly 5 may include a knob 54. The knob 54 may be arranged on the screw rod 51. The knob 54 may be located on the outer side of the side wall of the screw rod 51 protruding out of the baffle 71 and provided with the connecting hole 701, and the knob 54 may drive the screw rod 51 to rotate so as to move the connecting rod assembly 41. The knob 54 may be used as an operating end operated by the user, and the user may directly rotate the knob 54 to accurately control the lifting height of the base 3. Moreover, the knob 54 is arranged on the outer side of the screw rod 51 protruding out of the baffle 71, which greatly improves the convenience and efficiency of the operation.

[0150] In some embodiments, a locking mechanism or an anti-loosening device may be provided between the knob 54 and the screw rod 51, which is helpful to prevent the screw rod 51 from being accidentally rotated due to external force when adjustment is not required.

[0151] In some embodiments, the knob 54 may be integrally formed on the end of the screw rod 51 .

[0152] In some other embodiments, the knob 54 is detachably disposed on the screw rod 51 .

[0153] Fig.13 for Fig. 9 A partial enlarged view of point B; Fig.14 for Figure 1 A cross-sectional view of Fig.15 for Fig.14 A partial enlarged view of point C.

[0154] like Fig.14 and Fig.15 As shown, in some embodiments, the base 3 may be provided with a guide cylinder 81. The guide cylinder 81 may be arranged at the bottom of the box body, and the base 3 may be provided with a guide column 82, which can be lifted and extended into the inside of the guide cylinder 81, and the guide cylinder 81 can guide the lifting of the base 3 through the guide column 82. Among them, by arranging the guide column 82 on the base 3, and the guide column 82 can correspond to the guide cylinder 81, the guide column 82 can be lifted and lowered along the internal space of the guide cylinder 81, so as to achieve the guidance and support of the base 3, which is conducive to further preventing the base 3 from deflecting, shaking or rotating during the lifting process, so that the base 3 can be lifted and lowered smoothly along the predetermined trajectory.

[0155] On the other hand, the combination of the guide cylinder 81 and the guide column 82 also enhances the stability of the base 3. During the lifting process, since the guide column 82 is always supported and constrained by the guide cylinder 81, the base 3 can maintain a relatively stable posture and is not easy to lose balance even when subjected to external impact or vibration.

[0156] like Fig.15 As shown, in some embodiments, the cross-sectional shape and size of the guide column 82 can match those of the guide cylinder 81 .

[0157] like Figure 5 and Fig.15 As shown, in some embodiments, the refrigerator may include an elastic member. The elastic member may be nested and arranged on the outside of the guide column 82, and the elastic member may be arranged inside the guide cylinder 81. In this way, the guide cylinder 81 and the guide column 82 may guide the elastic movement of the elastic member.

[0158] In some embodiments, the two ends of the elastic member can be respectively abutted between the base 3 and the bottom of the box body, and the base 3 can be deformed when it rises. In this way, by providing an elastic member with its two ends respectively abutted between the base 3 and the bottom of the box body, during the descent of the base 3, the elastic member can be elastically deformed, thereby slowing down the descent speed of the base 3, playing a certain buffering role, and being conducive to reducing the impact and vibration during the lifting and lowering of the base 3, and protecting the internal components of the refrigerator from damage.

[0159] like Fig.15 As shown, in some embodiments, the elastic force of the elastic member can be used to drive the base 3 to reset downward. Specifically, when the base 3 rises, the guide column 82 will rise accordingly and compress the elastic member, causing the elastic member to deform. At this time, the elastic member stores elastic potential energy. When the base 3 is no longer subjected to the upward force or the upward force is reduced to a level that is insufficient to overcome the elastic force of the elastic member, the elastic member will release its stored elastic potential energy and drive the base 3 to reset downward.

[0160] It should be noted that, in some other embodiments, the guide cylinder 81 may be disposed on the base 3. The guide column 82 may be disposed on the base 3. The elastic member may be nested on the guide column 82, and both ends of the elastic member may abut between the base 3 and the bottom of the box body, respectively.

[0161] In some other embodiments, the guide cylinder 81 may be disposed on the base 3. The guide column 82 may be disposed on the bottom of the box.

[0162] In some embodiments, the elastic member may be a spring 83. The spring 83 has a simple structure and can buffer and reset the lifting movement of the base 3.

[0163] like Figure 3 and Fig.15 As shown, in some embodiments, the refrigerator may include a mounting cover 72. The mounting cover 72 is disposed at the bottom of the box. The mounting cover 72 may be located above the base 3, and the connecting rod assembly 41 may be slidably connected to a side wall of the mounting cover 72 facing the ground. The mounting cover 72 and the base 3 are enclosed to form a mounting cavity, and the roller assembly 2 is installed in the mounting cavity. By providing the mounting cover 72, the connecting rod assembly 41 may be slidably connected to a side wall of the mounting cover 72 facing the ground. In this way, by providing the mounting cover 72 at the bottom of the refrigerator, other components may be installed, which is conducive to improving the connection stability between the box and the connecting rod assembly.

[0164] like Figure 8 and Fig.13 As shown, in some embodiments, the installation cover plate 72 may be provided with a groove 901 opening toward the ground. At least a portion of the side plate 31 of the base 3 may be inserted into the groove 901, so that when the base 3 is lifted or lowered relative to the bottom of the box body, it may be inserted into the installation cover plate 72 along the groove 901, so that the structure of the installation cover plate 72 and the base 3 may be more compact.

[0165] like Figure 2 and Figure 3As shown, in some embodiments, the baffle 71 can be arranged on a side wall of the mounting cover plate 72 facing the ground. The baffle 71 can be located on the outside of the base 3. In this way, the baffle 71 and the mounting cover plate 72 can enclose a cover structure facing the ground opening 301, and the base 3 is arranged inside the baffle 71 and the mounting cover plate 72, so that the base 3 and the connecting rod mechanism 4 arranged on the base 3 can be protected.

[0166] In some embodiments, the baffle plate 71 and the mounting cover plate 72 may be integrally formed.

[0167] like Figure 2 and Figure 7 As shown, in some embodiments, the refrigerator may include a mounting seat 91. The mounting seat 91 may be connected to the bottom of the box body, and the mounting seat 91 may be used to mount the roller assembly 2. Since the roller assembly 2 needs to bear the overall weight of the refrigerator and various forces generated during movement, the mounting seat 91 is provided to provide a stable support platform for the roller assembly 2.

[0168] like Figure 1 and Figure 7 As shown, in some embodiments, a plurality of mounting positions may be provided on the mounting seat 91. The plurality of mounting positions may provide mounting interfaces and fixing positions for the roller assembly 2.

[0169] like Figure 1 As shown, in some embodiments, the roller assembly 2 may include a plurality of rollers 21. The plurality of rollers 21 is beneficial to improving the efficiency of the movement of the refrigerator.

[0170] In some embodiments, the roller 21 may be a universal wheel, a fixed wheel or other types of wheels, which may be selected according to the movement requirements and design requirements of the refrigerator.

[0171] like Figure 7 As shown, in some embodiments, the outer surface of the roller 21 may be wrapped with a rubber pad 22. The rubber pad 22 is in direct contact with the ground, which can reduce the wear of the roller 21 on the ground during the rolling process.

[0172] like Figure 5 As shown, in some embodiments, the refrigerator may include a mounting column 92. One end of the mounting column 92 may be connected to the bottom of the box, and the other end of the mounting column 92 may be connected to the mounting seat 91, so that a spacing space is formed between the mounting seat 91 and the bottom of the box, the sliding connection between the connecting rod assembly 41 and the mounting cover 72 is located in the spacing space, and the lifting and lowering adjustment assembly 5 is located in the spacing space. By providing the mounting column 92 between the mounting seat 91 and the bottom of the box, a spacing space can be formed between the bottom of the box and the mounting seat 91, thereby providing necessary space for the installation and operation of the connecting rod assembly 41 and the lifting and lowering adjustment assembly 5, and also providing convenience for the installation and operation of the lifting and lowering adjustment assembly 5.

[0173] like Figure 3 As shown, in some embodiments, the mounting cover 72 may be provided with a communication port 702. One end of the mounting column 92 is connected to the bottom of the box through the communication port 702, and the other end of the mounting column 92 is connected to the mounting seat 91. By providing the communication port 702 on the mounting cover 72, the mounting column 92 can be easily passed through and connected to the bottom of the box.

[0174] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. A refrigeration device, characterized in that: include: A housing forming an outer shell of the refrigeration device; A roller assembly is fixed to the bottom of the box; A base is liftably disposed below the bottom of the box, at least part of the roller assembly is located in a cavity of the base, an opening is provided at the bottom of the base, the opening is communicated with the cavity of the base, and the opening can allow the roller assembly to pass through; A connecting rod mechanism is movably connected between the bottom of the box and the base, and the connecting rod mechanism can drive the base to rise and fall relative to the box; the connecting rod mechanism includes a connecting rod assembly and a hinged rod assembly, the connecting rod assembly is slidably connected to the bottom of the box, one end of the hinged rod assembly is hinged to the connecting rod assembly, and the other end of the hinged rod assembly is hinged to the base; A lifting and lowering adjustment assembly is transmission-connected to the connecting rod assembly; Wherein, when the lifting and adjusting assembly drives the connecting rod assembly to slide in the first direction, so as to drive the hinge rod assembly to rotate, and drive the base to descend relative to the box body through the hinge rod assembly, so that the base can contact the ground to support the box body; When the lifting and adjusting assembly drives the connecting rod assembly to slide toward the second direction, thereby driving the hinged rod assembly to rotate in the opposite direction toward the horizontal direction, and drives the base to rise relative to the box body through the hinged rod assembly, so that the base is away from the ground, the roller assembly can extend to the outside of the base through the opening and contact the ground; the first direction is opposite to the second direction.

2. The refrigeration device according to claim 1, characterized in that: The connecting rod assembly includes a first connecting rod and a second connecting rod, the first connecting rod is transmission-connected to the lifting and lowering adjustment assembly, the first connecting rod is connected to the second connecting rod, the second connecting rod is slidably connected to the bottom of the box, and both ends of the hinged rod assembly are hinged between the second connecting rod and the base; The lifting adjustment assembly can drive the second connecting rod to slide toward the first direction through the first connecting rod, so that the second connecting rod can drive the hinge rod assembly to rotate and drive the base to descend relative to the box body; The lifting and lowering adjustment assembly can drive the second connecting rod to slide toward the second direction through the first connecting rod, so that the second connecting rod can drive the hinge rod assembly to rotate in the opposite direction and drive the base to rise relative to the box.

3. The refrigeration device according to claim 2, characterized in that: The lifting and lowering adjustment assembly comprises a screw rod, the extension direction of the screw rod is arranged parallel to the sliding direction of the second connecting rod, and the screw rod is rotatably arranged at the bottom of the box body; The first connecting rod is provided with a threaded hole, the threaded hole extends horizontally, and the screw rod is rotatably connected in the threaded hole; When the screw is rotated in one direction, the first connecting rod can move in the direction of one axial end of the screw, so that the first connecting rod can drive the second connecting rod to slide in the first direction; When the screw rod rotates in another direction, the first connecting rod can move in the direction of the other axial end of the screw rod, so that the first connecting rod can drive the second connecting rod to slide toward the second direction.

4. The refrigeration device according to claim 3, characterized in that: The lifting and lowering adjustment component comprises a fixing part, which is arranged at the bottom of the box body. The fixing part is provided with a through hole, and one end of the screw rod is rotatably inserted into the through hole.

5. The refrigeration device according to claim 4, characterized in that: The lifting and lowering adjustment assembly includes a limiting portion and a limiting member, wherein the limiting portion and the limiting member are axially spaced apart and arranged on the screw rod, and the limiting portion and the limiting member are respectively located on opposite sides of the fixing portion, and the limiting portion and the limiting member can axially limit the screw rod on the fixing portion.

6. The refrigeration device according to claim 2, characterized in that: The bottom of the box body is provided with a slide groove, and the slide groove is extended in the horizontal direction; The second connecting rod is slidably arranged in the sliding groove, so that when the lifting and adjusting assembly drives the first connecting rod to move, the second connecting rod can slide along the sliding groove at the bottom of the box.

7. The refrigeration device according to claim 6, characterized in that: The second connecting rods include two, and the two second connecting rods are arranged in parallel and spaced apart; The bottom of the box body is respectively provided with two sliding grooves, and the two sliding grooves correspond to the second connecting rods one by one.

8. The refrigeration device according to claim 2, characterized in that: The hinge rod assembly includes a first hinge rod and a rotating shaft, wherein two rotating shafts are provided, one of which is arranged at the hinge between the upper end of the first hinge rod and the second connecting rod, and the other rotating shaft is arranged at the hinge between the lower end of the first hinge rod and the base.

9. The refrigeration device according to claim 8, characterized in that: The articulated rod assembly also includes a second articulated rod, the first articulated rod and the second articulated rod are arranged relative to each other, the first articulated rod and the second articulated rod are arranged on both sides of the second connecting rod, and the rotating shaft passes through part of the first articulated rod and the second connecting rod and is rotatably connected to the second articulated rod.

10. The refrigeration device according to claim 2, characterized in that: The articulated rod assembly includes two groups, the two groups of articulated rod assemblies are arranged at intervals, and the two groups of articulated rod assemblies are rotatably connected to the two ends of the second connecting rod respectively.

11. The refrigeration device according to claim 3, characterized in that: It also includes a baffle, which is connected to the outer side wall of the bottom of the box; The base includes a side plate and a bottom plate, the bottom plate is connected to one end of the side plate close to the ground, the bottom plate is provided with the opening, the side plate is liftably arranged on the inner side of the baffle, the baffle is provided with a connecting hole, and the screw rod is rotatably inserted into the connecting hole.

12. The refrigeration device according to claim 11, characterized in that: The lifting and lowering adjustment assembly also includes a knob, which is arranged on the screw rod. The knob is located on the outer side of the side wall of the screw rod protruding from the baffle plate and having the connecting hole. The knob can drive the screw rod to rotate to move the connecting rod assembly.

13. The refrigeration device according to claim 1, characterized in that: The base is provided with a guide cylinder, which is arranged at the bottom of the box body. The base is provided with a guide column, and the guide column can be lifted and extended into the interior of the guide cylinder. The guide cylinder can guide the lifting of the base through the guide column.

14. The refrigeration device according to claim 13, characterized in that: It also includes a spring, which is arranged inside the guide cylinder. The spring is nested on the outside of the guide column. The two ends of the spring are respectively abutted between the base and the bottom of the box body. The rising of the base can cause the spring to deform, wherein the elastic force of the spring is used to drive the base to reset downward.

15. The refrigeration device according to claim 1, characterized in that: It also includes support feet, which are arranged on the outer side of the bottom of the base. When the base is lowered, the support feet can be used to contact the ground to support the box; wherein the support feet include at least two.

16. The refrigeration device according to claim 1, characterized in that: It also includes a mounting cover plate, which is arranged at the bottom of the box body, the mounting cover plate is located above the base, the connecting rod assembly is slidably connected to a side wall of the mounting cover plate facing the ground, the mounting cover plate and the base are enclosed to form a mounting cavity, and the roller assembly is installed in the mounting cavity.

17. The refrigeration device according to claim 16, characterized in that: It also includes a mounting seat and a mounting column, the mounting cover is provided with a connecting port, the roller assembly is arranged on the mounting seat, one end of the mounting column is connected to the bottom of the box body through the connecting port, and the other end of the mounting column is connected to the mounting seat to form a spacing space between the mounting seat and the bottom of the box body, the sliding connection between the connecting rod assembly and the mounting cover is located in the spacing space, and the lifting and lowering adjustment assembly is located in the spacing space.

Images