Refrigeration equipment

Abstract

This utility model provides a refrigeration device, including: a cabinet; a cabinet liner; a shelf; a first connecting rod, the upper end of which is rotatably mounted on the shelf, and the lower end of which is rotatably mounted on the side wall of the cabinet liner; two first connecting rods, each with an upwardly extending first extension arm at their upper ends; a second connecting rod, the upper end of which is rotatably mounted on the shelf, and the lower end of which is rotatably mounted on the side wall of the cabinet liner; a pull rod, one horizontal end of which is connected to one first extension arm, and the other horizontal end of which is connected to another first extension arm; the shelf is configured to have a first state located within the refrigeration space and a second state extending outside the refrigeration space. According to the refrigeration device provided by this utility model, when the shelf is in the first state, the pull rod can be pulled downwards, thereby allowing the shelf to move down, making it easier for users to place items on the higher shelf, thus improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a refrigeration device. Background Technology

[0002] Refrigerators, freezers, wine cabinets, beverage coolers, and other refrigeration equipment are containers that use the phase change of refrigerants to create a low-temperature environment for storing food and other items. They are indispensable household appliances. As people's living standards improve, the requirements for refrigeration equipment are also increasing.

[0003] Traditional refrigeration equipment typically consists of a cabinet and a liner inside the cabinet, forming a refrigerated space. The cabinet has a door on the front for opening and closing the refrigerated space. The refrigerated space usually has shelves for storing items.

[0004] To increase the volume of refrigeration equipment, it is often extended upwards, resulting in a taller existing refrigeration unit. This leads to higher shelves on top of the refrigeration unit, making it very inconvenient for users to place items on the top shelves, hindering their operation and affecting their user experience. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problem in the prior art that it is inconvenient for users to take and put away items on the top shelf.

[0006] To solve the above-mentioned technical problems, this utility model provides a refrigeration device, which includes: a housing, which is configured as the outer shell of the refrigeration device; a liner, which is disposed in the housing and has a refrigeration space with a front opening; a shelf, which is movably disposed in the refrigeration space; two first connecting rods, which are disposed on the left and right sides of the shelf, with the upper end of the first connecting rod rotatably disposed on the shelf and the lower end of the first connecting rod rotatably disposed on the side wall of the liner; the upper ends of the two first connecting rods each have a first extension arm extending upwards; two second connecting rods, which are disposed on the left and right sides of the shelf; the second connecting rod is disposed behind the first connecting rod, with the upper end of the second connecting rod rotatably disposed on the shelf and the lower end of the second connecting rod rotatably disposed on the side wall of the liner; the second connecting rod and The first connecting rods are parallel, and the upper end of the second connecting rod is higher than the upper end of the first connecting rod; a pull rod is provided on the front side of the shelf, the pull rod is arranged laterally, one end of the pull rod is connected to one of the first extension arms, and the other end of the pull rod is connected to another of the first extension arms; the shelf is configured to have a first state located within the refrigeration space and a second state extending outside the refrigeration space; when the shelf is in the first state, the pull rod can be pulled downward to drive the first connecting rod and the second connecting rod to rotate forward relative to the inner box, so that the shelf extends outside the refrigeration space, changing from the first state to the second state; when the shelf is in the second state, the pull rod can be pushed upward to drive the first connecting rod and the second connecting rod to rotate in the opposite direction relative to the inner box, so that the shelf retracts into the refrigeration space, changing from the second state to the first state.

[0007] One of the above technical solutions has the following advantages or beneficial effects: When the shelf is in the first state, the pull rod can be pulled downwards, allowing the shelf to move down, making it easier for users to place items on the higher shelves, thus improving the user experience. When the shelf is in the second state, the pull rod can be pushed upwards, allowing the shelf to return to the higher position inside the box, thereby improving the space utilization within the box.

[0008] In some embodiments, the shelf has an upwardly extending front flange at its front edge; the shelf has a receiving area, and the front flange is located on the front side of the receiving area; when the shelf is in the first state, the pull rods are spaced apart on the upper side of the front flange and cover the front side of the receiving area.

[0009] One of the above technical solutions has the following advantages or beneficial effects: thereby, the pull rod can block the front of the shelf, thus blocking the items in the shelf and preventing the items in the shelf from leaking out from the front of the shelf, thereby improving the stability of the items stored in the shelf.

[0010] In some embodiments, the shelf further includes a first side plate and a second side plate arranged opposite to each other, the front ends of the first side plate and the second side plate being connected to the front flange respectively; the front end of the first side plate is provided with a first inclined edge, the first inclined edge being arranged inclined downward toward the front flange; a first clearance area is provided above the first inclined edge; the front end of the second side plate is provided with a second inclined edge, the second inclined edge being arranged inclined downward toward the front flange; a second clearance area is provided above the second inclined edge; when the shelf is in the first state, one end of the pull rod is located in the first clearance area, and the other end of the pull rod is located in the second clearance area.

[0011] One of the above technical solutions has the following advantages or beneficial effects: The pull rod can be positioned within the first and second clearance zones, allowing it to be accommodated within these zones. This enables the pull rod to be installed inside the shelving unit without occupying internal storage space, thus improving the utilization rate of the internal storage space. Simultaneously, by positioning the pull rod within the first and second clearance zones, it can act as the front sidewall of the shelving unit, preventing items from sliding out from the front, thereby improving the stability of the stored items.

[0012] In some embodiments, the shelf has an upwardly extending rear flange at its rear edge, the height of which is higher than the height of the front flange.

[0013] One of the above technical solutions has the following advantages or beneficial effects: As a result, when users place items on the shelves, because the front folding edge is low, users can easily place items on the shelves, thus making it easier for users to place items on the shelves and improving the user experience.

[0014] In some embodiments, the pull rod has a handle portion facing downward in the middle, and the handle portion has a handle groove with an upper opening inside, and the handle portion is spaced apart on the upper side of the front flange.

[0015] One of the above technical solutions has the following advantages or beneficial effects: users can insert their hands into the handle groove through the opening, thereby enabling them to pull down the handle, which facilitates the operation of the handle, improves the convenience of handle operation, and allows even shorter people to pull down the shelf.

[0016] In some embodiments, the refrigeration device further includes: two fixed seats, each disposed within the housing and on the left and right outer walls of the housing liner; a first protrusion and a second protrusion are spaced apart on the side wall of each fixed seat near the refrigeration space, the first protrusion being located in front of the second protrusion; a first mounting hole is provided on the side wall of the housing liner opposite to the first protrusion, and a second mounting hole is provided on the side wall of the housing liner opposite to the second protrusion; the first protrusion can extend into the refrigeration space through the first mounting hole; the second protrusion can extend into the refrigeration space through the second mounting hole; the lower end of the first connecting rod is rotatably connected to the first protrusion, and the lower end of the second connecting rod is rotatably connected to the second protrusion.

[0017] One of the above technical solutions has the following advantages or beneficial effects: the upper end of the first connecting rod is rotatably connected to one of the layers of the frame, and the lower end of the first connecting rod is rotatably connected to the fixed seat; the upper end of the second connecting rod is rotatably connected to another layer of the frame, and the lower end of the second connecting rod is rotatably connected to the fixed seat, thereby avoiding direct connection between the first and second connecting rods and the box liner, thus facilitating the installation and disassembly of the first and second connecting rods.

[0018] In some embodiments, a first stop is provided on the side wall of the fixed base near the cooling space, and the first stop can extend into the cooling space; the first stop is located on the back side of the second connecting rod; when the pull rod is in the first state, the rear side wall of the second connecting rod abuts against the first stop.

[0019] One of the above technical solutions has the following advantages or beneficial effects: the first stop can prevent the second link from continuing to rotate backward, thereby improving the installation stability of the shelf in the first state.

[0020] In some embodiments, a second stop is provided on the side wall of the fixed base near the cooling space, and the second stop can extend into the cooling space; the second stop is located on the front side of the first connecting rod; when the pull rod is in the second state, the front side wall of the first connecting rod abuts against the second stop.

[0021] One of the above technical solutions has the following advantages or beneficial effects: the second stop can prevent the first link from continuing to rotate forward, thereby improving the installation stability of the shelf in the second state.

[0022] In some embodiments, the lower end of the second connecting rod extends forward and downward with a second extension arm; the refrigeration device further includes: an air spring for providing elastic force to the second connecting rod, the air spring including: a sleeve having a compression chamber inside, one end of the compression chamber being open; the end of the sleeve away from the opening of the compression chamber being rotatably connected to the side wall of the box liner; a compression rod, one end of the compression rod being movably inserted into the compression chamber through the opening of the compression chamber, the compression rod being capable of compressing or expanding the compression chamber; the other end of the compression rod being rotatably connected to the second extension arm.

[0023] One of the above technical solutions has the following advantages or beneficial effects: When the shelf moves from the first state to the second state, the compression chamber can provide a reverse buffering force to the compression rod, thereby enabling the second extension arm to obtain a reverse buffering force, which in turn provides buffering for the rotation of the second link, preventing the shelf from rotating too quickly and causing instability of the items on the shelf. When the shelf moves from the second state to the first state, the air spring can provide elastic force to the second extension arm, thereby providing thrust for the rotation of the second link, making the second link less effort to rotate in the reverse direction, and thus making it easier to push the shelf upwards.

[0024] In some embodiments, when the pull rod is in the first state, the length direction of the compression rod is parallel to the length direction of the second extension arm.

[0025] One of the above technical solutions has the following advantages or beneficial effects: In the first state, the force direction of the compression rod can be the same as the length direction of the second extension arm, thereby providing stability for the shelf in the first state. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a refrigeration device provided in an embodiment of the present invention.

[0027] Figure 2 yes Figure 1 A schematic diagram of the middle section.

[0028] Figure 3 yes Figure 2 The exploded diagram.

[0029] Figure 4 yes Figure 3 A schematic diagram of the middle section.

[0030] Figure 5 yes Figure 4 A schematic diagram of the structure of the fixed base.

[0031] Figure 6 yes Figure 4 A sectional view.

[0032] Figure 7 yes Figure 2 A schematic diagram of the structure in another state.

[0033] Figure 8 yes Figure 7 The exploded diagram.

[0034] Figure 9 yes Figure 8 A schematic diagram of the middle section.

[0035] Figure 10 yes Figure 9 A sectional view.

[0036] Figure 11 This is a schematic diagram of the shelf structure.

[0037] The reference numerals in the attached drawings are explained as follows: 1. Cabinet body; 11. Door; 2. Inner cabinet; 20. Refrigeration space; 201. Refrigerator compartment; 202. Freezer compartment; 21. First mounting hole; 22. Second mounting hole; 3. Shelf; 30. Storage area; 31. Bottom plate; 32. Front flange; 33. Rear flange; 34. First side panel; 341. First beveled edge; 342. First clearance area; 35. Second side panel; 351. Second beveled edge; 352. Second clearance area; 4. First connecting rod; 41. 1. Extension arm; 42. First countersunk hole; 5. Second connecting rod; 51. Second extension arm; 511. Third mounting groove; 52. Second countersunk hole; 6. Pull rod; 61. Handle part; 62. Handle groove; 7. Fixing seat; 71. First boss; 711. First mounting groove; 72. Second boss; 721. Second mounting groove; 73. First stop block; 74. Second stop block; 8. Air spring; 81. Sleeve; 811. Compression chamber; 82. Compression rod; 821. Third countersunk hole. Detailed Implementation

[0038] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0039] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] Traditional refrigeration equipment typically consists of a cabinet and a liner inside the cabinet, forming a refrigeration space. The cabinet has a door on the front for opening and closing the refrigeration space. Shelves are usually installed inside the refrigeration space for placing items. To increase the volume of the refrigeration equipment, it is often extended upwards, resulting in a taller unit and consequently, taller shelves on top. This makes placing items on the top shelves inconvenient and hinders user operation, negatively impacting the user experience.

[0042] For ease of description, unless otherwise specified, the directions of up, down, left, right, front, and back in this article are based on the state of the refrigeration equipment when it is in use. The direction in which the refrigeration equipment faces the user is the front direction, and the direction in which it faces away from the user is the back direction. The vertical direction is up and down, and the horizontal direction is left and right.

[0043] Please see Figure 1 and Figure 2 As shown, in some embodiments, the refrigeration device provided by the present invention may include a housing 1. The housing 1 may have a rectangular hollow structure. The internal space of the housing 1 may be used to provide installation space. The housing 1 may be constructed as the outer shell of the refrigeration device.

[0044] It should be noted that in some other embodiments, the box 1 may also be a hollow structure of other shapes.

[0045] Please see Figure 2 As shown, in some embodiments, a refrigeration space 20 may be provided inside the housing 1. The refrigeration space 20 can store food.

[0046] In some embodiments, the refrigeration space 20 may be provided in multiple sections. The multiple refrigeration spaces 20 may be arranged vertically or horizontally. Each refrigeration space 20 that is separated from the others may serve as an independent storage space, such as a freezer 202, a refrigerator 201, and a variable temperature compartment, to meet different refrigeration needs such as freezing, refrigeration, and variable temperature storage according to different types of food.

[0047] Please see Figure 1As shown, in some embodiments, a door 11 may be provided on the front side of the housing 1. The door 11 can be used to open and close the cooling space 20. The door 11 and the housing 1 can be connected by a hinge, so that the door 11 can rotate around the axis of the hinge to realize the opening and closing of the door 11, thereby opening and closing the corresponding cooling space 20.

[0048] It is understandable that multiple doors 11 can be set, each corresponding to a cooling space 20. Alternatively, multiple doors 11 can be opened and closed simultaneously in a single cooling space 20.

[0049] In some embodiments, a cabinet liner 2 may be provided inside the housing 1. A cooling space 20 may be formed inside the cabinet liner 2.

[0050] It should be noted that multiple cooling chambers 2 can be installed. Within the same cooling chamber 2, there can be only one cooling space 20, or multiple cooling spaces 20 can be installed.

[0051] In some embodiments, the refrigeration device may include a refrigeration assembly (not shown). The refrigeration assembly may be disposed inside the housing 1. The refrigeration assembly is used to provide cooling to the interior of the refrigeration device to maintain a low-temperature environment within each refrigerated space 20.

[0052] In some embodiments, the refrigeration assembly may include a compressor (not shown). The compressor can compress the refrigerant, turning it into a high-temperature, high-pressure refrigerant vapor.

[0053] In some embodiments, the refrigeration assembly may include a condenser (not shown). The condenser can condense high-temperature, high-pressure refrigerant vapor into medium-temperature, medium-pressure liquid refrigerant.

[0054] In some embodiments, the condenser assembly may include a throttling device (not shown in the figures). The throttling device can be used to reduce the pressure of a medium-temperature, medium-pressure liquid refrigerant, thereby converting the medium-temperature, medium-pressure liquid refrigerant into a low-temperature, low-pressure refrigerant vapor.

[0055] In some embodiments, the refrigerant assembly may include an evaporator (not shown). The evaporator can evaporate and boil low-temperature, low-pressure refrigerant vapor to absorb heat from the surrounding medium.

[0056] In some embodiments, the refrigerant assembly may include refrigeration components such as a compressor, condenser, throttling device, and evaporator. After being compressed by the compressor, the refrigerant forms high-temperature, high-pressure refrigerant vapor. This high-temperature, high-pressure refrigerant flows into the condenser and is condensed into medium-temperature, high-pressure liquid refrigerant. After exiting the condenser, the medium-temperature, high-pressure liquid refrigerant can flow into the evaporator through the throttling device. The throttling device can reduce the pressure of the medium-temperature, high-pressure liquid refrigerant, transforming it into low-temperature, low-pressure refrigerant vapor. When the low-temperature, low-pressure refrigerant vapor enters the evaporator, it evaporates and boils, absorbing heat from the surrounding medium, thereby cooling the refrigeration space 20.

[0057] Please see Figure 3 , Figure 4 and Figure 11 As shown, in some embodiments, the refrigeration equipment may include a shelf 3. The shelf 3 may be arranged horizontally within the refrigeration space 20. The shelf 3 may be horizontally installed within the cabinet liner 2. The shelf 3 is movably disposed within the cabinet body 1, and a receiving area 30 may be formed on the shelf 3 for receiving refrigerated items. Thus, the shelf 3 allows food or beverages to be stably placed within the refrigeration space 20 for refrigeration.

[0058] It should be noted that in some other embodiments, the shelf 3 may also be arranged at an angle within the cooling space 20. Users can also adjust the angle of the shelf 3 according to actual needs.

[0059] In some embodiments, multiple shelves 3 may be provided. These shelves 3 may be arranged at intervals within the refrigeration space 20. The multiple shelves 3 may be arranged vertically with spacing. Therefore, different ingredients and beverages can be placed on the multiple shelves 3 separately, thus avoiding cross-contamination between different types of food. At the same time, using multiple shelves 3 can optimize the space utilization of the refrigeration space 20 and avoid space waste.

[0060] In some embodiments, the refrigeration space 20 is divided into a refrigerator compartment 201 located at the top of the cabinet 1 and a freezer compartment 202 located at the bottom of the cabinet 1. The refrigerator compartment 201 and the freezer compartment 202 are spaced apart. The refrigerator compartment 201 has a refrigerator door at its opening to seal it, and the freezer compartment 202 has a freezer door at its opening to seal it. The temperature inside the refrigerator compartment 201 is higher than the temperature inside the freezer compartment 202, so that the stored items are kept fresh in the refrigerator compartment 201 and frozen in the freezer compartment 202.

[0061] It should be noted that in some other embodiments, the refrigerator compartment 201 may be located at the lower part of the cabinet 1, and the freezer compartment 202 may be located at the upper part of the cabinet 1.

[0062] In some embodiments, the shelf 3 can be disposed within the refrigerator compartment 201. When disposed within the refrigerator compartment 201 and with the refrigerator door closed, the shelf 3 can be located at the top of the refrigerator compartment 201, with a small gap or close contact between the top of the shelf 3 and the top of the refrigerator compartment 201. When items need to be placed on the shelf 3, the refrigerator door is opened and the shelf 3 is pulled down.

[0063] It should be noted that shelf 3 can also be set in the freezer compartment 202. When it is necessary to place items on shelf 3, the freezer door can be opened and shelf 3 can be pushed up.

[0064] It should also be noted that when the freezer compartment 202 is located on the upper part of the cabinet 1, the shelf 3 can be located in the freezer compartment 202 on the upper part of the cabinet 1.

[0065] Please see Figure 4 and Figure 11 As shown, in some embodiments, the layer may include a base plate 31. The base plate 31 may be plate-shaped. The base plate 31 may be horizontally arranged. A receiving area 30 may be provided on the upper side of the base plate 31 so that an item can be placed on the upper side of the base plate 31.

[0066] Please see Figure 4 and Figure 10 As shown, in some embodiments, the shelf 3 may include a front flange 32. The front flange 32 may be located on the front side of the base plate 31. The front flange 32 may serve as the front sidewall of the receiving area 30. The front flange 32 may extend upward from the front edge of the shelf 3. The front flange 32 may be formed by extending upward from the front edge of the base plate 31. The front flange 32 can prevent items in the receiving area 30 from sliding out from the front, thereby improving the stability of the items placed in the receiving area 30.

[0067] Please see Figure 4 and Figure 11 As shown, in some embodiments, the shelf 3 may include a rear flange 33. The rear flange 33 may be located on the rear side of the base plate 31. The rear flange 33 may serve as the rear sidewall of the receiving area 30. The rear flange 33 may extend upward from the rear edge of the shelf 3. The rear flange 33 may be formed by extending upward from the rear edge of the base plate 31. The rear flange 33 can prevent items in the receiving area 30 from sliding out from the rear, thereby improving the stability of the items placed in the receiving area 30.

[0068] Please see Figure 4 and Figure 11 As shown, in some embodiments, the height of the front flange 32 is lower than the height of the rear flange 33. Therefore, when a user places items on the shelf 3, the lower height of the front flange 32 allows for easier placement, reducing effort and improving the user experience.

[0069] Please see Figure 4 and Figure 11 As shown, in some embodiments, the shelf 3 further includes a first side panel 34. The first side panel 34 may be located on the left side of the shelf 3. The first side panel 34 may serve as the left side wall of the accommodating area 30. The first side panel 34 may extend upward from the left edge of the shelf 3. The first side panel 34 may be formed by extending upward from the left edge of the base plate 31. The first side panel 34 can prevent items in the accommodating area 30 from sliding out from the left side, thereby improving the stability of the items placed in the accommodating area 30.

[0070] Please see Figure 4 and Figure 11 As shown, in some embodiments, the shelf 3 further includes a second side panel 35. The second side panel 35 may be located on the right side of the shelf 3. The second side panel 35 may serve as the right side wall of the receiving area 30. The second side panel 35 may extend upward from the right side edge of the shelf 3. The second side panel 35 may be formed by extending upward from the right side edge of the base plate 31. The second side panel 35 can prevent items in the receiving area 30 from sliding out from the right side, thereby improving the stability of the items placed in the receiving area 30.

[0071] In some embodiments, the first side panel 34 and the second side panel 35 can be arranged opposite each other. The front end of the first side panel 34 can be connected to the front flange 32. The front end of the second side panel 35 can be connected to the front flange 32. The rear end of the first side panel 34 can be connected to the rear flange 33. The rear end of the second flange can be connected to the rear flange 33. Thus, the front flange 32, the first side panel 34, the rear flange 33, and the second side panel 35 can be enclosed to form a frame structure, which can be enclosed with the base plate 31 to form a receiving area 30, thereby enabling the storage of items.

[0072] Please see Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, the shelf 3 can be configured in a first state. When the shelf 3 is in the first state, the shelf 3 can be located within the cooling space 20. At this time, the shelf 3 can be closed within the cooling space 20 by the door 11, thereby achieving the preservation of the items inside the shelf 3.

[0073] Please see Figure 8 , Figure 9 and Figure 10 As shown, in some embodiments, the shelf 3 can be configured in a second state. When the shelf 3 is in the second state, the shelf 3 can extend out of the cooling space 20, at which time the front side of the shelf 3 protrudes out of the cooling space 20, thereby allowing the user to take items off and put them on the shelf 3.

[0074] In some embodiments, the refrigeration device may include a linkage mechanism. One end of the linkage mechanism may be rotatably connected to the shelf 3, and the other end may be rotatably connected to the side wall of the liner 2. The shelf 3 can be supported inside the liner 2 by the linkage mechanism. When the shelf 3 is in the first state, the user can push the shelf 3 downward to drive the linkage mechanism to rotate forward, causing the shelf 3 to extend outside the refrigeration space 20, changing from the first state to the second state; when the shelf 3 is in the second state, the user can push the shelf 3 upward to drive the linkage mechanism to rotate in the opposite direction, causing the shelf 3 to retract into the refrigeration space 20, changing from the second state to the first state.

[0075] Please see Figure 4 , Figure 6 , Figure 9 and Figure 10 As shown, in some embodiments, the linkage mechanism may include a first link 4. The first link 4 may be rod-shaped. There may be two first links 4. The two first links 4 may be respectively located on the left and right sides of the shelf 3. The two first links 4 may be arranged symmetrically from left to right. The upper end of the first link 4 is rotatably mounted on the shelf 3, and the lower end of the first link 4 is rotatably mounted on the side wall of the box liner 2.

[0076] Specifically, the upper end of one first connecting rod 4 is rotatably mounted on the left side wall of the shelf 3, and the lower end of one first connecting rod 4 is rotatably mounted on the left side wall of the inner box 2. The upper end of the other first connecting rod 4 is rotatably mounted on the right side wall of the shelf 3, and the lower end of the other first connecting rod 4 is rotatably mounted on the right side wall of the inner box 2. Thus, the two first connecting rods 4 can be used to support the shelf 3, so that the shelf 3 is supported within the refrigeration space 20.

[0077] Please see Figure 4 , Figure 6 , Figure 9 and Figure 10 As shown, in some embodiments, the linkage mechanism may include a second link 5. The second link 5 may be rod-shaped. There may be two second links 5. The two second links 5 are respectively located on the left and right sides of the shelf 3. The two second links 5 may be arranged symmetrically from left to right. The upper end of the second link 5 is rotatably mounted on the shelf 3, and the lower end of the second link 5 is rotatably mounted on the side wall of the inner box 2.

[0078] Specifically, the upper end of one second connecting rod 5 is rotatably mounted on the left side wall of the shelf 3, and the lower end of one second connecting rod 5 is rotatably mounted on the left side wall of the inner box 2. The upper end of the other second connecting rod 5 is rotatably mounted on the right side wall of the shelf 3, and the lower end of the other second connecting rod 5 is rotatably mounted on the right side wall of the inner box 2. Thus, the two second connecting rods 5 further provide support for the shelf 3, allowing the shelf 3 to be more stably supported within the refrigeration space 20.

[0079] In some embodiments, the line connecting the upper end of the first link 4, the lower end of the first link 4, the lower end of the second link 5, and the upper end of the second link 5 can be a parallelogram, thereby improving the stability of the first link 4 and the second link 5 in supporting the shelf 3.

[0080] In some embodiments, the upper end of the second link 5 is higher than the upper end of the first link 4. The lower end of the second link 5 is higher than the lower end of the first link 4. Thus, when the shelf 3 changes from the first state to the second state, the shelf 3 can extend forward into the cooling space 20, and the height of the shelf 3 is reduced, thereby allowing the shelf 3 located at the higher position to move down, making it convenient for the user to place items on the higher shelf 3.

[0081] Please see Figure 4 , Figure 6 , Figure 9 and Figure 10 As shown, in some embodiments, the upper ends of the two first connecting rods 4 each extend upwards with a first extension arm 41. The two first extension arms 41 are arranged symmetrically from left to right. The first extension arms 41 are arranged at an angle to the first connecting rods 4. The angle between the first extension arms 41 and the first connecting rods 4 can be greater than 90 degrees. The first extension arm 41 can be formed by extending upwards and forwards from the upper end of the first connecting rods 4. The end of the first extension arm 41 away from the first connecting rods 4 can be formed with a driving end, which can be located on the front side of the shelf 3. The user can drive the first extension arm 41 to rotate through the driving end, thereby causing the first connecting rods 4 to rotate, thereby adjusting the position of the shelf 3 so that the shelf 3 located at a high position can be lowered, thus making it convenient for the user to place items on the high shelf 3.

[0082] It should be noted that in some other embodiments, the first extension arm 41 may be formed by extending the upper end of the first link 4 toward directly upward.

[0083] Please see Figure 4 , Figure 6 , Figure 9 and Figure 10 As shown, in some embodiments, the linkage mechanism may further include a pull rod 6. The pull rod 6 may be rod-shaped. The pull rod 6 may be located on the front side of the shelf 3. The pull rod 6 may be arranged in a laterally extending manner. One lateral end of the pull rod 6 may be connected to one of the first extension arms 41, and the other lateral end of the pull rod 6 may be connected to another first extension arm 41. Specifically, one lateral end of the pull rod 6 may be connected to the drive end of one of the first extension arms 41, and the other lateral end of the pull rod 6 may be connected to the drive end of another first extension arm 41.

[0084] Therefore, when the shelf 3 is in the first state, the pull rod 6 can be pulled down to drive the first connecting rod 4 and the second connecting rod 5 to rotate in the forward direction relative to the inner box 2, so that the shelf 3 extends out of the refrigeration space 20, thereby changing the shelf 3 from the first state to the second state. This allows the shelf 3 to move down from the first state located inside the refrigeration space 20 to the second state extending out of the refrigeration space 20, making it easier for users to place items on the shelf 3 located at a higher position, thus improving the user experience.

[0085] When the shelf 3 is in the second state, that is, when the shelf 3 is extended out of the refrigeration space 20, the pull rod 6 can be pushed upward to drive the first connecting rod 4 and the second connecting rod 5 to rotate in opposite directions relative to the inner box 2, so that the shelf 3 retracts into the refrigeration space 20, thereby changing the shelf 3 from the second state to the first state, so that the shelf 3 can rise, and then the shelf 3 can return to the high position of the inner box 2, thereby improving the space utilization rate inside the box 1.

[0086] Please see Figure 4 and Figure 9 As shown, in some embodiments, the pull rod 6 has a handle portion 61 facing downwards in the middle. A handle groove 62 can be formed inside the handle portion 61. An opening can be provided on the upper side of the handle groove 62. The user can insert his / her hand into the handle groove 62 through the opening, thereby enabling the user to pull down the pull rod 6, making it convenient for the user to operate the pull rod 6, improving the ease of operation of the pull rod 6, and allowing even shorter people to pull down the shelf 3.

[0087] In some embodiments, the pull rods 6 can be spaced out on the upper side of the front flange 32, thereby blocking the front of the shelf 3 and preventing items in the shelf 3 from leaking out from the front of the shelf 3, thus improving the stability of the items stored in the shelf 3.

[0088] Please see Figure 4 , Figure 6 , Figure 9 and Figure 10As shown, in some embodiments, the front end of the first side plate 34 may be provided with a first inclined edge 341. The first inclined edge 341 may be arranged inclined downwards toward the front flange 32. A first clearance area 342 may be provided above the first inclined edge 341. The front end of the second side plate 35 may be provided with a second inclined edge 351. The second inclined edge 351 may be arranged inclined upwards toward the front flange 32. A second clearance area 352 may be provided above the second inclined edge 351. Thus, when the shelf 3 is in the first state, that is, when the shelf 3 is located in the refrigeration space 20, one end of the pull rod 6 may be located in the first clearance area 342, and the second end of the pull rod 6 may be located in the second clearance area 352. Therefore, by utilizing the fact that the pull rod 6 can be positioned within the first and second clearance areas 342 and 352, it can be accommodated within these areas. This allows the pull rod 6 to be installed inside the cabinet liner 2 without occupying the internal storage space of the shelf 3, thereby improving the utilization rate of the internal storage space of the cabinet liner 2. Simultaneously, by positioning the pull rod 6 within the first and second clearance areas 342 and 352, it can also act as the front sidewall of the shelf 3's accommodating cavity, preventing items from sliding out from the front and thus improving the stability of the items stored within the shelf 3.

[0089] Please see Figure 4 , Figure 6 , Figure 9 and Figure 10 As shown, in some embodiments, the refrigeration equipment further includes a mounting base 7. Two mounting bases 7 may be provided. The two mounting bases 7 may be respectively located inside the housing 1. The two mounting bases 7 may be respectively located on the outer walls of the left and right sides of the inner chamber 2. The lower end of the first connecting rod 4 may be rotatably connected to one of the mounting bases 7. The lower end of the second connecting rod 5 may be rotatably connected to the other mounting base 7. Thus, by using the upper end of the first connecting rod 4 to be rotatably connected to one of the layer shelves 3, and the lower end of the first connecting rod 4 to be rotatably connected to the mounting base 7; and by using the upper end of the second connecting rod 5 to be rotatably connected to the other layer shelf 3, and the lower end of the second connecting rod 5 to be rotatably connected to the mounting base 7, the direct connection between the first connecting rod 4 and the second connecting rod 5 and the inner chamber 2 is avoided, thereby facilitating the installation and disassembly of the first connecting rod 4 and the second connecting rod 5.

[0090] Please see Figure 3 and Figure 5As shown, in some embodiments, the mounting base 7 may be provided with a first protrusion 71. The first protrusion 71 may be provided on the side wall of the mounting base 7 near the cooling space 20. A first mounting hole 21 may be provided on the side wall of the liner 2. The first mounting hole 21 may be arranged opposite to the first protrusion 71. The first protrusion 71 on the mounting base 7 can extend into the cooling space 20 through the first mounting hole 21. Thus, the lower end of the first connecting rod 4 can be rotatably connected to the first protrusion 71 extending into the cooling space 20, thereby enabling the first connecting rod 4 to be stably rotatably connected to the mounting base.

[0091] Please see Figure 3 and Figure 5 As shown, in some embodiments, the mounting base 7 may be provided with a second protrusion 72. The second protrusion 72 may be provided on the side wall of the mounting base 7 near the cooling space 20. The second protrusion 72 may be provided on the rear side of the first protrusion 71. A second mounting hole 22 may be provided on the side wall of the box liner 2. The second mounting hole 22 may be arranged opposite to the second protrusion 72. The second protrusion 72 on the mounting base 7 can extend into the cooling space 20 through the second mounting hole 22. Thus, the lower end of the second connecting rod 5 can be rotatably connected to the second protrusion 72 extending into the cooling space 20, thereby enabling the second connecting rod 5 to be stably rotatably connected to the mounting base.

[0092] Please see Figure 4 and Figure 5 As shown, in some embodiments, the first connecting rod 4 has first countersunk holes 42 at both ends. The first boss 71 may have a first mounting groove 711 arranged opposite to the first countersunk holes 42. The bolt can pass through the first countersunk holes 42 and extend into the first mounting groove 711. The first connecting rod 4 can rotate relative to the bolt through the first countersunk holes 42. The end of the bolt away from the first mounting groove 711 can be accommodated in the first countersunk hole 42, thereby preventing the bolt from being exposed and thus avoiding the bolt occupying space in the cooling space 20.

[0093] Please see Figure 4 and Figure 5 As shown, in some embodiments, the second connecting rod 5 has second countersunk holes 52 at both ends. The second boss 72 may have a second mounting groove 721 arranged opposite to the second countersunk holes 52. The bolt can pass through the second countersunk holes 52 and extend into the second mounting groove 721. The second connecting rod 5 can rotate relative to the bolt through the second countersunk holes 52. The end of the bolt away from the second mounting groove 721 can be accommodated in the second countersunk hole 52, thereby preventing the bolt from being exposed, thus avoiding the bolt occupying space in the cooling space 20, and preventing the bolt from obstructing other components inside the housing 1 when the second connecting rod 5 rotates.

[0094] Please see Figure 5 , Figure 6 and Figure 10 As shown, in some embodiments, a first stop 73 may be provided on the fixed base 7. The first stop 73 may be provided on the side wall of the fixed base 7 near the cooling space 20. The first stop 73 can extend into the cooling space 20. The first stop 73 may be provided on the back side of the second connecting rod 5. When the pull rod 6 is in the first state, the rear side wall of the second connecting rod 5 can abut against the first stop 73. The second connecting rod 5 can be supported on the first stop 73 under the action of the weight of the shelf, thereby preventing the second connecting rod 5 from continuing to rotate backward. The weight of the shelf 3 can be balanced with the supporting force of the first stop 73, so that the shelf 3 can maintain torque balance in the first state, thereby improving the stability of the shelf 3 in the first state.

[0095] Please see Figure 5 , Figure 6 and Figure 10 As shown, in some embodiments, a second stop 74 may be provided on the fixed base 7. The second stop 74 may be provided on the side wall of the fixed base 7 near the cooling space 20. The second stop 74 can extend into the cooling space 20. The second stop 74 may be provided on the front side of the first connecting rod 4. When the pull rod 6 is in the second state, the front side wall of the first connecting rod 4 can abut against the second stop 74. The first connecting rod 4 can be supported above the second stop 74 under the action of the weight of the shelf 3, and provide an upward support force for the shelf 3. The weight of the shelf 3 can be balanced with the support force. The second stop 74 can prevent the first connecting rod 4 from continuing to rotate forward, so that the shelf 3 can maintain torque balance in the first state, thereby improving the stability of the shelf 3 in the second state.

[0096] In some embodiments, the second stop 74 can be horizontally positioned. Thus, when the shelf 3 is in the second state and the front sidewall of the first link 4 abuts against the second stop 74, the first link 4 is in a horizontal state, thereby further improving the installation stability of the shelf 3 in the second state.

[0097] In some embodiments, the angle between the first stop 73 and the second stop 74 can be greater than 90 degrees. Therefore, when the shelf 3 is in the first state and the rear sidewall of the second connecting rod 5 abuts against the first stop 73, the angle between the second connecting rod 5 and the horizontal is greater than 90 degrees. That is, when the shelf 3 is in the first state, the second connecting rod 5 is vertically tilted backward, thereby enabling the second connecting rod 5 to abut against the first stop 73, further improving the stability of the shelf 3 in the first state.

[0098] Please see Figure 4 , Figure 6 , Figure 9 and Figure 10As shown, in some embodiments, the lower end of the second link 5 extends downward and forward with a second extension arm 51; the second extension arm 51 may be rod-shaped. The refrigeration device also includes an air spring 8. The air spring 8 may be located on the rear side of the second link 5. The air spring 8 can be used to provide elastic force to the second link 5. Thus, when the shelf 3 moves from the first state to the second state, the second link 5 can rotate forward relative to the inner box 2, thereby driving the second extension arm 51 to rotate forward. The second extension arm 51 can compress the air spring 8, thereby enabling the air spring 8 to provide a reverse buffering force to the second extension arm 51, thus providing buffering for the rotation of the second link 5 and preventing the shelf 3 from rotating too fast, which would cause the items on the shelf 3 to become unstable.

[0099] In some embodiments, when the shelf 3 moves from the second state to the first state, the second link 5 can rotate in the opposite direction relative to the inner box 2, thereby driving the second extension arm 51 to rotate in the opposite direction. The second extension arm 51 can stretch the air spring 8, thereby enabling the air spring 8 to provide elastic force to the second extension arm 51, thereby providing thrust for the rotation of the second link 5, thereby making the second link 5 less effort during the reverse rotation, and thus making it easier to push the shelf 3 upward.

[0100] In some embodiments, the air spring 8 may include a sleeve 81. A compression chamber 811 may be provided within the sleeve 81. One end of the compression chamber 811 may have an opening. The end of the sleeve 81 away from the opening of the compression chamber 811 may be rotatably connected to the side wall of the housing liner 2. The sleeve 81 may also include a compression rod 82. One end of the compression rod 82 may extend movably into the compression chamber 811 through the opening. The compression rod 82 is capable of compressing and expanding the compression chamber 811. The other end of the compression chamber 811 may be rotatably connected to the second extension arm 51.

[0101] Therefore, when the shelf 3 moves from the first state to the second state, the second connecting rod 5 can rotate forward relative to the inner box 2, thereby driving the second extension arm 51 to rotate forward. The second extension arm 51 can squeeze the compression rod 82, causing the compression rod 82 to squeeze the compression chamber 811, thereby enabling the compression chamber 811 to provide a reverse buffering force for the compression rod 82, thereby enabling the second extension arm 51 to obtain a reverse buffering force, thus providing a buffer for the rotation of the second connecting rod 5, preventing the shelf 3 from rotating too fast and causing the items on the shelf 3 to become unstable.

[0102] When the shelf 3 moves from the second state to the first state, the second link 5 can rotate in the opposite direction relative to the inner box 2, thereby driving the second extension arm 51 to rotate in the opposite direction. The second extension arm 51 can stretch the compression rod 82, thereby enabling the compression chamber 811 to provide elastic force to the compression rod 82, thereby providing elastic force to the second extension arm 51, thereby providing thrust for the rotation of the second link 5, thereby making the second link 5 more effortless during the reverse rotation, and thus making it easier to push the shelf 3 upward.

[0103] In some embodiments, when the pull rod 6 is in the first state, the length direction of the compression rod 82 is parallel to the length of the second extension arm 51 in the opposite direction. Thus, in the first state, the force direction of the compression rod 82 can be the same as the length direction of the second extension arm 51, thereby providing stability for the shelf 3 in the first state.

[0104] In some embodiments, the second extension arm 51 has a third mounting groove 511 at the end away from the second connecting rod 5. The compression rod 82 has a third countersunk hole 821 at the end away from the sleeve 81. The bolt can extend into the third mounting groove 511 through the third countersunk hole 821. The third connecting rod can rotate relative to the bolt through the third countersunk hole 821. The end of the bolt away from the third mounting groove 511 can be accommodated in the third countersunk hole 821, thereby preventing the bolt from being exposed, thus preventing the bolt from occupying the space of the cooling space 20, and preventing the bolt from obstructing other components when the compression rod 82 rotates.

[0105] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A refrigeration device, characterized in that, include: The housing is configured as the outer casing of the refrigeration equipment; A cooling liner is located inside the box, and the cooling liner has a front-opening cooling space. Shelves, which are movably disposed within the refrigeration space; The first link, there are two first links, the two first links are located on the left and right sides of the shelf, the upper end of the first link is rotatably located on the shelf, and the lower end of the first link is rotatably located on the side wall of the box; the upper ends of the two first links each extend upward with a first extension arm. The second link has two parts, which are located on the left and right sides of the shelf. The second link is located behind the first link, with its upper end rotatably mounted on the shelf and its lower end rotatably mounted on the side wall of the box. The second link is parallel to the first link, and its upper end is higher than that of the first link. A pull rod is provided on the front side of the shelf. The pull rod is arranged laterally. One end of the pull rod is connected to a first extension arm, and the other end of the pull rod is connected to another first extension arm. The shelf is configured to have a first state located within the refrigeration space and a second state extending outside the refrigeration space; When the shelf is in the first state, the pull rod can be pulled down to drive the first connecting rod and the second connecting rod to rotate in the forward direction relative to the cabinet, so that the shelf extends out of the refrigeration space and changes from the first state to the second state; When the shelf is in the second state, the pull rod can be pushed upward to drive the first connecting rod and the second connecting rod to rotate in the opposite direction relative to the inner box, so that the shelf retracts into the refrigeration space and changes from the second state to the first state.

2. The refrigeration equipment according to claim 1, characterized in that, The shelf has an upwardly extending front flange at its front edge; the shelf has a receiving area inside, and the front flange is located on the front side of the receiving area; When the shelf is in the first state, the pull rods are spaced apart on the upper side of the front flange and cover the front side of the accommodating area.

3. The refrigeration equipment according to claim 2, characterized in that, The shelf also includes a first side plate and a second side plate arranged opposite to each other, and the front ends of the first side plate and the second side plate are respectively connected to the front flange; The front end of the first side plate is provided with a first inclined edge, which is arranged downwards and inclined toward the front flange; a first clearance area is provided above the first inclined edge; the front end of the second side plate is provided with a second inclined edge, which is arranged downwards and inclined toward the front flange; a second clearance area is provided above the second inclined edge; When the shelf is in the first state, one end of the pull rod is located in the first clearance area, and the other end of the pull rod is located in the second clearance area.

4. The refrigeration equipment according to claim 2, characterized in that, The shelf has an upwardly extending rear flange at its rear edge, and the height of the rear flange is higher than the height of the front flange.

5. The refrigeration equipment according to claim 2, characterized in that, The pull rod has a handle portion facing downward in the middle, and the handle portion has a handle groove with an upper opening inside. The handle portion is spaced apart on the upper side of the front flange.

6. The refrigeration equipment according to claim 1, characterized in that, The refrigeration equipment also includes: The enclosure includes two mounting bases, each located inside the housing and on the left and right outer walls of the inner chamber. Each mounting base has a first protrusion and a second protrusion spaced apart on its side wall near the refrigeration space, with the first protrusion positioned in front of the second protrusion. The inner chamber has a first mounting hole opposite to the first protrusion and a second mounting hole opposite to the second protrusion on its side wall. Both the first and second protrusions can extend into the refrigeration space through the first mounting hole. The lower end of the first connecting rod is rotatably connected to the first boss, and the lower end of the second connecting rod is rotatably connected to the second boss.

7. The refrigeration equipment according to claim 6, characterized in that, The fixed base has a first stop on its side wall near the cooling space, and the first stop can extend into the cooling space; the first stop is located on the back side of the second connecting rod. When the pull rod is in the first state, the rear side wall of the second connecting rod abuts against the first stop.

8. The refrigeration equipment according to claim 6, characterized in that, The fixed base has a second stop on its side wall near the cooling space, and the second stop can extend into the cooling space; the second stop is located on the front side of the first connecting rod. When the pull rod is in the second state, the front side wall of the first connecting rod abuts against the second stop.

9. The refrigeration equipment according to claim 1, characterized in that, The lower end of the second link extends forward and downward with a second extension arm; The refrigeration equipment also includes: An air spring, used to provide an elastic force to the second link, the air spring comprising: A sleeve, wherein a compression chamber is provided inside the sleeve, and one end of the compression chamber is open; the end of the sleeve away from the opening of the compression chamber is rotatably connected to the side wall of the box liner; A compression rod, one end of which extends movably into the compression chamber through the opening of the compression chamber, the compression rod being capable of compressing or expanding the compression chamber; the other end of the compression rod is rotatably connected to the second extension arm.

10. The refrigeration equipment according to claim 9, characterized in that, When the pull rod is in the first state, the length direction of the compression rod is parallel to the length direction of the second extension arm.

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