Refrigerator

Abstract

The application discloses a refrigerator, which comprises a cabinet, a cabinet door and a lubricating oil filling device. The cabinet is connected with the cabinet door through a hinge shaft. The lubricating oil filling device is arranged on the cabinet door and above the hinge shaft, and is used for adding lubricating oil to the hinge shaft, so that noise generated by the cabinet door during opening and closing of the cabinet door due to dry lubricating oil around the hinge shaft after long-term use of the refrigerator is effectively avoided. The lubricating oil filling device comprises an oil storage box and a linkage structure. The bottom of the oil storage box is provided with an oil guide hole. One end of the linkage structure protrudes from the oil storage box, and the other end extends into the oil storage box and covers the oil guide hole. The oil guide hole is opened by pressing the linkage structure, so that the lubricating oil is added. The structure is simple, the structure of the hinge shaft does not need to be changed, and the machining difficulty of the hinge shaft is reduced.

Description

Technical Field

[0001] This application relates to the field of low-temperature storage equipment technology, and in particular to a refrigerator. Background Technology

[0002] A refrigerator is an electrical device that can maintain a constant low temperature, providing appropriate temperature and humidity conditions for fresh vegetables, fruits, meats, and other food items, thereby improving the food's preservation effect.

[0003] A refrigerator consists of a cabinet and a door, which are typically connected by a hinge. Over time, the lubricating oil between the hinge pin and the pin hole in the refrigerator door can dry out, causing noise during opening and closing. Adding a structure to the door that allows lubricant to be added to the hinge pin would solve this noise problem. However, current door structures generally incorporate a lubricant storage structure within the hinge pin, making the hinge pin structure more complex and increasing its machining strength.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a refrigerator that reduces the complexity of the door hinge shaft structure.

[0006] Another purpose of this application is to avoid noise generated by the cabinet and door after long-term use.

[0007] The problems addressed in this application are not limited to those mentioned above, and other unmentioned problems can be clearly understood by those skilled in the art from the following description.

[0008] To achieve the above objectives, this application adopts the following technical solution: This application discloses a refrigerator, which includes a cabinet, a door, and a lubricating oil filling device. The cabinet has a liner with a vent. The door is located on the side of the cabinet where the vent is located and is used to close the liner. The cabinet and the door are connected by a hinge. The lubricating oil filling device is located on the door and above the hinge, and is used to add lubricating oil to the hinge. The lubricating oil filling device includes an oil storage box and a linkage structure. The bottom of the oil storage box has an oil guide hole, which is correspondingly arranged with the hinge. The linkage structure passes through the oil storage box and includes a first end and a second end. The first end protrudes from the oil storage box, and the second end extends into the oil storage box and covers the oil guide hole. Pressing the first end separates the second end from the oil guide hole to open it. Releasing the first end resets the linkage structure to close the oil guide hole.

[0009] As described above, by installing a lubricating oil filling device above the door hinge shaft, lubricating oil can be added to the hinge shaft, preventing noise during door opening and closing caused by the lubricating oil drying out around the hinge shaft after long-term use. The lubricating oil filling device includes an oil reservoir for holding the lubricating oil. An oil guide hole is located at the bottom of the reservoir, and a linkage mechanism passes through the reservoir to open or close the guide hole, controlling the addition of lubricating oil. The lubricating oil filling device has a simple structure, is easy to operate, and does not require changes to the hinge shaft structure, thus avoiding increasing the machining difficulty of the hinge shaft.

[0010] In some embodiments of this application, the linkage structure includes a button plate, an elastic element, a pressure rod, and a mounting base. The upper part of the oil reservoir has an opening facing the outside of the reservoir door. The button plate passes through the opening, with one end extending to the outside of the oil reservoir, and a first gap is formed between the button plate and the lower end of the opening. The upper end of the elastic element abuts against the button plate inside the oil reservoir. The pressure rod is located at the lower end of the elastic element, with one end abutting against the lower end of the elastic element and the other end abutting against the oil guide hole. The mounting base is located inside the oil reservoir and is rotatably connected to the pressure rod. The first gap between the button plate and the lower end of the opening provides space for downward pressing of the button plate. The upper end of the elastic element abuts against the press plate, and the lower end of the elastic element abuts against the pressure rod. When the press plate is pressed, the elastic element can be compressed, thereby driving the pressure rod to rotate. This causes the pressure rod to separate from the oil guide hole, allowing the lubricating oil in the oil reservoir to flow from the oil guide hole to the hinge shaft, thus achieving lubrication between the hinge shaft and the mounting hole.

[0011] In some embodiments of this application, the pressure rod includes a first end, a connecting portion, and a second end. The first end and the second end are arranged parallel to the bottom of the oil reservoir, and a second gap is provided between the first end and the bottom of the oil reservoir. The first end abuts against the elastic element, and the second end abuts against the oil guide hole. The connecting portion is obliquely connected between the first end and the second end and rotatably connected to the mounting base. In this configuration, the first end abuts against the elastic element, the second end abuts against the oil guide hole, and the second gap is provided between the first end and the bottom of the oil reservoir. Thus, when the press plate is pressed, the elastic element is compressed, causing the first end to press down, thereby causing the second end to move upward and separate from the oil guide hole, allowing the lubricating oil in the oil reservoir to flow out from the oil guide hole. When the press plate is released, the elastic element returns to its original position, causing the first end to move upward, causing the second end to abut downward against the oil guide hole, sealing the oil guide hole, preventing lubricating oil from flowing out of the oil guide hole, and achieving effective control of the lubricating oil addition amount.

[0012] In some embodiments of this application, the elastic element includes a compression spring. Compression springs have a simple structure, low cost, and reduce product costs.

[0013] In some embodiments of this application, the oil guide hole and the hinge shaft are coaxially arranged. The coaxial arrangement of the oil guide hole and the hinge shaft allows the lubricating oil flowing out of the oil guide hole to be evenly distributed on the hinge shaft in the circumferential direction.

[0014] In some embodiments of this application, the diameter of the oil guide hole is smaller than the outer diameter of the hinge shaft, ensuring that the lubricating oil flowing downward from the oil guide hole can be effectively dispersed to the outer wall of the hinge shaft without wasting too much lubricating oil.

[0015] In some embodiments of this application, the wall of the oil guide hole is configured as a guide surface, which is inclined downwards, such that the upper diameter of the oil guide hole is larger than the lower diameter. By configuring the wall of the oil guide hole as a downward-inclined guide surface and having an upper diameter larger than a lower diameter, lubricating oil can flow more smoothly along the guide surface, preventing lubricating oil from accumulating or clogging in the oil guide hole, and ensuring that lubricating oil can be accurately and efficiently added to the hinge shaft.

[0016] In some embodiments of this application, the door is provided with a mounting groove, and the oil storage box is fitted into the mounting groove and detachably connected to the mounting groove. The detachable connection of the oil storage box to the mounting groove allows the oil storage box to be removed from the door when the lubricating oil is used up, enabling the addition of lubricating oil to the storage box and extending the service life of the lubricating oil filling device.

[0017] Beneficial effects: According to at least one embodiment of this application, this application provides a lubrication and oil filling device above the hinge shaft of the refrigerator door, which can add lubricating oil to the hinge shaft, thereby avoiding noise problems during the opening and closing of the refrigerator door after long-term use.

[0018] According to at least one embodiment of this application, the lubricating oil filling device is located above the hinge shaft, which does not require changing the structure of the hinge shaft, has a simple structure, and avoids increasing the processing difficulty of the hinge shaft.

[0019] According to at least one embodiment of this application, the lubricating oil filling device includes an oil reservoir and a linkage structure. The lubricating oil is loaded into the oil reservoir, and the oil guide hole at the bottom of the oil reservoir is opened or closed by the linkage structure to control the addition of lubricating oil. The operation is simple.

[0020] The effects of this application are not limited to those mentioned above, and those skilled in the art can clearly understand other effects not mentioned from the description in the claims. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of a refrigerator from a first-view perspective, provided as an embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the structure of the box provided in one embodiment of this application.

[0023] Figure 3 This is a structural schematic diagram of a refrigerator provided in one embodiment of this application from a second perspective.

[0024] Figure 4 for Figure 3 Enlarged view of region B in the image.

[0025] Figure 5 for Figure 3 A cross-sectional view along the AA direction.

[0026] Figure 6 for Figure 5 A magnified view of region C in the middle.

[0027] Figure 7 This is a schematic diagram of the structure of a refrigerator without lubricating oil filling device provided in one embodiment of this application.

[0028] Figure 8 This is a schematic diagram of the structure of a lubricating oil filling device provided in one embodiment of this application.

[0029] Figure 9 This is a schematic diagram of the structure of an oil storage box provided in one embodiment of this application.

[0030] Explanation of key component symbols: 1. Box body; 11. Box shell; 12. Box liner; 121. Storage compartment; 122. Access opening; 2. Box door; 21. Hinge shaft; 22. Mounting hole; 23. Mounting slot; 3. Lubricating oil filling device; 31. Oil reservoir; 311. Oil guide hole; 312. Opening; 32. Linkage structure; 321. Press plate; 322. Elastic element; 323. Pressure rod; 3231. First end; 3232. Connecting part; 3233. Second end; 324. Mounting base; 3241. Support plate; 3242. Shaft; 325. First gap; 326. Second gap. Detailed Implementation

[0031] This application provides a refrigerator. To make the purpose, technical solution, and effects of this application clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0032] In the description of this application, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this application. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] Figure 1 This is a first-view structural diagram of the refrigerator provided in this application. Figure 2 This is a structural schematic diagram of the box provided in this application.

[0035] Please see Figure 1 and Figure 2 This application provides a refrigerator, including a cabinet 1. The cabinet 1 may include a shell 11. The shell 11 is configured as the external structure of the cabinet 1. The shell 11 may be generally cuboid in shape. It is understood that in other embodiments, the shell 11 may also adopt a hollow structure of other shapes.

[0036] In some embodiments of this application, a storage compartment 121 may be provided inside the housing 1. The storage compartment 121 can be used for low-temperature storage of items to improve the preservation effect of the items.

[0037] In some embodiments of this application, the housing 1 may be provided with multiple mutually separated storage compartments 121. Each separated storage compartment 121 can serve as an independent low-temperature storage space. Storage compartment 121 can be a freezer compartment or a refrigerator compartment. Storage compartment 121 can meet different refrigeration needs, such as freezing and refrigeration, according to the different types of food, and can be used for storage. For example, the refrigerator compartment is suitable for storing vegetables, fruits, and beverages. The freezer compartment is suitable for storing meat and frozen foods.

[0038] In some embodiments of this application, to meet more user needs, the storage room 121 may also include a food preservation drawer and a variable temperature compartment.

[0039] In some embodiments of this application, multiple storage rooms 121 can be arranged vertically.

[0040] In some embodiments of this application, multiple storage rooms 121 can be arranged in a left-right partition.

[0041] In some embodiments of this application, the box body 1 may be provided with a box liner 12. The box liner 12 is disposed inside the box shell 11. The interior of the box liner 12 is hollow. A storage compartment 121 is formed inside the box liner 12. A loading / unloading opening 122 is formed on the front side of the box liner 12. Items can be placed into the corresponding storage compartment 121 through the loading / unloading opening 122. It is understood that multiple box liners 12 may be provided inside the box body 1. Each box liner 12 may form one or more storage compartments 121.

[0042] In some embodiments of this application, an installation space is formed between the outer shell 11 and the inner shell 12. This installation space can be used to form an insulation layer. The insulation layer can insulate the storage space inside the shell 1 from the outside.

[0043] In some embodiments of this application, an air duct assembly (not shown in the figure) may be formed in the installation space.

[0044] The air duct assembly is connected to the inner box 12. A refrigeration system (not shown in the figure) may be installed in the air duct assembly. The cold air generated by the refrigeration system enters the inner box 12 through the air duct assembly to cool the food inside the inner box 12.

[0045] In some embodiments of this application, the air duct assembly may include a fan (not shown in the figures). The fan can accelerate the airflow velocity between the entire air duct assembly and the housing 12, thereby accelerating heat exchange and improving cooling efficiency.

[0046] In some embodiments of this application, a shelf assembly (not shown in the figure) may be provided in the inner box 12 to form a shelf space for storing items.

[0047] The shelf assembly can be detachably installed in the inner box 12, so that the shelf assembly can be removed from the inner box 12 for cleaning or changing the shelf space, etc.

[0048] In some embodiments of this application, the shelf assembly may include shelves. Shelves are used to store items. Shelves may be configured as a single, integral board structure. In other embodiments, shelves may also be configured as board structures that fold forward and backward or side to side. Alternatively, shelves may be composed of multiple retractable or expandable shelf rods. By changing the distance between the shelf rods, different loading planes and different shelf spaces can be formed to adapt to the storage needs of different items.

[0049] like Figure 1 and Figure 2 As shown, in some embodiments of this application, the housing 1 may include a door 2. The door 2 is movably disposed on the front side of the housing 1. The door 2 is configured to close the inner liner 12, thereby insulating the interior of the inner liner 12 from the exterior.

[0050] In some embodiments of this application, the door 2 can be a rotating door structure. The door 2 is rotatably connected to the side of the box body 1 where the access port 122 is provided. In this case, the door 2 can be used as a regular door structure, such as a refrigerator door or a freezer door.

[0051] Specifically, the refrigerator door 2 and the refrigerator body 1 can be connected by a hinge shaft 21, so that the refrigerator door 2 can rotate around the axis of the hinge to open and close the refrigerator door 2, thereby opening and closing the corresponding storage compartment 121.

[0052] Figure 3 A structural schematic diagram of the refrigerator provided in this application from a second-view perspective; Figure 4 for Figure 3 Enlarged view of region B in the image; Figure 5 for Figure 3 A cross-sectional view along the AA direction; Figure 6 for Figure 5 Enlarged view of region C in the image.

[0053] like Figure 1 , Figures 3 to 6 As shown, in some embodiments, the refrigerator may include a lubricating oil filling device 3. This lubricating oil filling device 3 is located on one side of the hinge shaft 21 connecting the door 2. The lubricating oil filling device 3 is positioned above the hinge shaft 21 and is used to add lubricating oil to the hinge shaft 21. By providing this lubricating oil filling device 3, lubricating oil can be added to the hinge shaft 21 connecting the door 2 and the refrigerator body 1 without disassembling the door 2, effectively avoiding the noise problem generated during the opening and closing of the door 2 after long-term use of the refrigerator.

[0054] Figure 7 This is a schematic diagram of the structure of the refrigerator without a lubricating oil filling device provided in this application.

[0055] like Figure 7As shown, in some embodiments, a mounting groove 23 is provided on one side of the door 2 connected to the hinge shaft 21. The lubricating oil filling device 3 is fitted into the mounting groove 23 and is detachably connected to the mounting groove 23. The oil storage box 31 is detachably connected to the mounting groove 23, so that after the lubricating oil in the lubricating oil filling device 3 is used up, the lubricating oil filling device 3 can be removed from the door 2, and lubricating oil can be added to the lubricating oil filling device 3, so that the lubricating oil filling device 3 can be recycled and its service life extended.

[0056] Furthermore, the mounting groove 23 may be provided with snap-fit ​​parts (not shown in the figure) on opposite sides. The snap-fit ​​parts abut against the outer side of the lubricating oil filling device 3 to snap the lubricating oil filling device 3 into the mounting groove 23, thereby improving the installation stability of the lubricating oil filling device 3.

[0057] Figure 8 A schematic diagram of the lubricating oil filling device provided in this application; Figure 9 A schematic diagram of the oil storage box provided in this application.

[0058] like Figure 6 , Figure 8 and Figure 9 As shown, in some embodiments, the lubricating oil filling device 3 may include an oil reservoir 31. The oil reservoir 31 can be used to store lubricating oil for adding lubricating oil to the hinge shaft 21 when needed.

[0059] The bottom of the oil reservoir 31 is provided with an oil guide hole 311. The oil guide hole 311 is correspondingly provided with the hinge shaft 21 so as to add lubricating oil to the hinge shaft 21 through the oil guide hole 311.

[0060] In some embodiments, the wall of the oil guide hole 311 is configured as a guide surface. The guide surface is inclined from top to bottom, such that the upper diameter of the oil guide hole 311 is larger than the lower diameter. By configuring the wall of the oil guide hole 311 as a guide surface that is inclined from top to bottom, and the upper diameter of the oil guide hole 311 being larger than the lower diameter, the above configuration allows the lubricating oil to flow more smoothly along the guide surface, preventing the lubricating oil from accumulating or clogging in the oil guide hole 311, and ensuring that the lubricating oil can be accurately and efficiently added to the hinge shaft 21.

[0061] like Figure 6 As shown, in some embodiments, the oil guide hole 311 is coaxially arranged with the hinge shaft 21. The coaxial arrangement of the oil guide hole 311 and the hinge shaft 21 allows the lubricating oil flowing out of the oil guide hole 311 to be more evenly distributed on the hinge shaft 21 in the circumferential direction.

[0062] In some embodiments, the diameter of the oil guide hole 311 is smaller than the outer diameter of the hinge shaft 21. The upper end of the hinge shaft 21 is inverted conical, and the diameter of the oil guide hole 311 is smaller than the maximum outer diameter of the hinge shaft 21. In this way, the lubricating oil flowing downward from the oil guide hole 311 can be dispersed downward along the inverted conical surface at the upper end of the hinge shaft 21 to the outer circumferential surface of the hinge shaft 21, improving the uniformity of lubricating oil dispersion on the hinge shaft 21 and enabling control of the amount of lubricating oil added.

[0063] like Figure 6 and Figure 8 As shown, in some embodiments, the lubricating oil filling device 3 includes a linkage structure 32. The linkage structure 32 passes through the oil reservoir 31 and is used to control the flow of lubricating oil from the oil reservoir 31 or to seal the lubricating oil inside the oil reservoir 31.

[0064] Specifically, the linkage structure 32 includes a first end and a second end. The first end protrudes from the oil reservoir 31, and the second end extends into the oil reservoir 31 and covers the oil guide hole 311. Pressing the first end separates the second end from the oil guide hole 311, thereby opening the oil guide hole 311. Releasing the first end resets the linkage structure 32, thereby closing the oil guide hole 311.

[0065] The first and second ends of the linkage structure 32 are linked. When the first end is pressed, the second end moves upward, separating it from the oil guide hole 311. At this time, the oil guide hole 311 is opened, allowing lubricating oil to flow out smoothly. When the first end is released, the linkage structure 32 automatically resets, and the second end covers the oil guide hole 311 again, sealing it and preventing lubricating oil leakage. This structure makes the lubricating oil filling process more convenient and controllable.

[0066] like Figure 6 , Figure 8 and Figure 9 As shown, in some embodiments, the linkage structure 32 includes a push plate 321, an elastic element 322, a pressure rod 323, and a mounting base 324.

[0067] An opening 312 facing the outside of the door 2 is provided on the upper part of the oil storage box 31, and a pressing plate 321 is inserted through the opening 312. One end of the pressing plate 321 extends to the outside of the oil storage box 31, and a first gap 325 is formed between the pressing plate 321 and the lower end of the opening 312. The upper end of the elastic member 322 abuts against the pressing plate 321 inside the oil storage box 31. A pressure rod 323 is provided at the lower end of the elastic member 322, and one end of the pressure rod 323 abuts against the lower end of the elastic member 322, while the other end of the pressure rod 323 abuts against the oil guide hole 311. A mounting base 324 is provided inside the oil storage box 31 and is rotatably connected to the pressure rod 323. The first gap 325 formed between the pressing plate 321 and the lower end of the opening 312 ensures that the pressing plate 321 has space to be pressed downward. When downward pressure is applied to the button plate 321, the button plate 321 moves downward within the opening 312. Due to the first gap 325 between the button plate 321 and the lower end of the opening 312, the button plate 321 can move downward smoothly. During the downward movement of the button plate 321, the elastic element 322 is compressed. The elastic element 322 undergoes elastic deformation under pressure, transmitting the pressure to the pressure rod 323. Under the pressure of the elastic element 322, the pressure rod 323 rotates with its rotational connection point with the mounting base 324 as the fulcrum, causing the other end of the pressure rod 323 to move upward, thereby separating from the oil guide hole 311. The oil guide hole 311 is opened, and lubricating oil can flow out from the oil guide hole 311. When the button 321 is released, the elastic element 322 returns to its original shape, generating an upward elastic force that pushes the button 321 upward to reset. Simultaneously, it causes the pressure rod 323 to rotate in the opposite direction, with the other end of the pressure rod 323 re-engaging with the oil guide hole 311, sealing the oil guide hole and preventing lubricating oil leakage. This structure allows for convenient control of lubricating oil flow and sealing through a simple pressing operation of the button 321, offering easy operation and a stable and reliable structure.

[0068] like Figure 6 and Figure 8As shown, in some embodiments, the pressure rod 323 includes a first end 3231, a connecting portion 3232, and a second end 3233. The first end 3231 and the second end 3233 are arranged parallel to the bottom of the oil reservoir 31, and a second gap 326 is provided between the first end 3231 and the bottom of the oil reservoir 31. The first end 3231 abuts against the elastic member 322, and the second end 3233 abuts against the oil guide hole 311. The connecting portion 3232 is obliquely connected between the first end 3231 and the second end 3233, and is rotatably connected to the mounting base 324. When subjected to force, the pressure rod 323 can rotate flexibly with the rotatable connection point between the connecting portion 3232 and the mounting base 324 as the fulcrum. When the press plate 321 is pressed, the elastic element 322 is pressed and pushes the first end 3231. The connecting part 3232 transmits this pressure to the second end 3233, allowing the second end 3233 to quickly separate from the oil guide hole 311, thereby opening the oil guide hole 311. When the press plate 321 is released, the elastic force of the elastic element 322 pushes the first end 3231 back to its original position, thereby causing the second end 3233 to re-abut against the oil guide hole 311, thus closing the oil guide hole 311. The above structure not only ensures the smooth rotation of the pressure rod 323, but also improves the stability and reliability of the entire linkage structure 32.

[0069] In some embodiments, the elastic element 322 includes a compression spring. The upper end of the compression spring abuts against the lower surface of the press plate 321, and the lower end of the compression spring abuts against the upper surface of the first end 3231. This allows the compression spring to function stably; when the press plate 321 is pressed, the compression spring is uniformly compressed, providing a stable pushing force to the first end 3231; when the press plate 321 is released, the compression spring, through its own elasticity, reliably pushes the first end 3231 back to its original position, ensuring the normal operation of the linkage structure 32.

[0070] In other embodiments, the elastic element 322 can be an elastic sheet. One end of the elastic sheet is in contact with the lower surface of the press plate 321, and the other end of the elastic sheet is in contact with the upper surface of the first end 3231. The elastic sheet has good elastic deformation capability. When the press plate 321 is pressed, the elastic sheet can quickly generate elastic deformation, providing a stable and continuous pushing force to the first end 3231, so that the first end 3231 can effectively drive the connecting part 3232 and the second end 3233 to move, realizing the smooth opening of the oil guide hole 311. When the press plate 321 is released, the elastic sheet, with its own elastic force to restore its original shape, reliably pushes the first end 3231 back to its original position, allowing the second end 3233 to tightly abut against the oil guide hole 311 again, ensuring the sealing effect of the oil guide hole 311, and ensuring that the linkage structure 32 can operate stably and reliably under different usage conditions.

[0071] like Figure 8As shown, in some embodiments, the mounting base 324 includes two spaced-apart support plates 3241 and a shaft 3242 connected between the two support plates 3241. The connecting portion 3232 of the pressure rod 323 is rotatably connected to the shaft 3242.

[0072] Two support plates 3241 are arranged parallel to each other, providing a stable support base for the shaft 3242 and ensuring that the shaft 3242 remains stable during the rotation of the pressure rod 323 without shifting or shaking. The shaft 3242 passes through the connecting part 3232, allowing the pressure rod 323 to rotate flexibly around the shaft 3242 as the rotation center. When the press plate 321 is pressed or released by external force, the connecting part 3232 of the pressure rod 323 can rotate smoothly around the shaft 3242, thereby driving the first end 3231 and the second end 3233 to move accordingly, realizing the opening and closing of the oil guide hole 311, and ensuring that the linkage structure 32 can operate efficiently and stably.

[0073] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this application, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A refrigerator, characterized in that, include: The box body is equipped with a liner that has an opening for taking out and putting in contents; A door is provided on the side of the box body where the opening is provided, and is used to close the box liner. The box body and the door are connected by a hinge. A lubricating oil filling device is disposed on the door and located above the hinge shaft, for adding lubricating oil to the hinge shaft; wherein, the lubricating oil filling device includes: An oil reservoir is provided with an oil guide hole at the bottom, and the oil guide hole is correspondingly provided with the hinge shaft; A linkage structure is provided in the oil storage box. The linkage structure includes a first end and a second end. The first end protrudes from the oil storage box, and the second end extends into the oil storage box and covers the oil guide hole. When the first end is pressed, the second end can separate from the oil guide hole to open the oil guide hole. When the first end is released, the linkage structure resets to close the oil guide hole.

2. The refrigerator according to claim 1, characterized in that, The linkage structure includes: The button plate has an opening at the top of the oil storage box facing the outside of the box door. The button plate passes through the opening, one end of the button plate extends to the outside of the oil storage box, and a first gap is formed between the button plate and the lower end of the opening. An elastic element, the upper end of which abuts against the button plate inside the oil storage box; A pressure rod is provided at the lower end of the elastic element, with one end of the pressure rod abutting against the lower end of the elastic element and the other end of the pressure rod abutting against the oil guide hole; The mounting base is located inside the oil reservoir and is rotatably connected to the pressure rod.

3. The refrigerator according to claim 2, characterized in that, The pressure rod includes a first end, a connecting part, and a second end. The first end and the second end are arranged parallel to the bottom of the oil storage box, and a second gap is provided between the first end and the bottom of the oil storage box. The first end abuts against the elastic element, and the second end abuts against the oil guide hole. The connecting part is inclinedly connected between the first end and the second end and is rotatably connected to the mounting base.

4. The refrigerator according to claim 2, characterized in that, The elastic element includes a compression spring.

5. The refrigerator according to claim 1, characterized in that, The oil guide hole is coaxially arranged with the hinge shaft.

6. The refrigerator according to claim 1, characterized in that, The diameter of the oil guide hole is smaller than the outer diameter of the hinge shaft.

7. The refrigerator according to claim 1, characterized in that, The wall of the oil guide hole is configured as a guide surface, which is inclined from top to bottom so that the upper diameter of the oil guide hole is larger than the lower diameter of the oil guide hole.

8. The refrigerator according to claim 1, characterized in that, The door is provided with a mounting groove, the oil storage box is fitted into the mounting groove, and is detachably connected to the mounting groove.

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