refrigerator

Abstract

The present invention relates to a refrigerator, which includes a box body, a door body and an upper hinge mechanism; the upper hinge mechanism includes a mounting base, an upper hinge, a knob and a guide block; the mounting base is fixed to the top of the box body; the upper hinge is detachably arranged above the top surface of the box body; the knob is passed through the upper hinge and the mounting base, and the upper end of the knob is exposed on the upper hinge; the guide block is arranged below the mounting base and is rotatably connected to the lower end of the knob; the knob can rotate relative to the guide block and clamp the upper hinge and the mounting base between the knob and the guide block. The knob and the guide block cooperate to clamp the upper hinge and the mounting base between the knob and the guide block, so that the upper hinge is fixed to the mounting base, which facilitates the disassembly of the upper hinge. During disassembly, the upper hinge can be disassembled by rotating the knob in the opposite direction, without disassembling the mounting base or fixing with screws, which is beneficial for saving disassembly and assembly time during transportation and improving disassembly and assembly efficiency and delivery efficiency.

Description

Technical Field

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

[0002] With the development of technology, refrigerators are becoming more and more popular in daily life. Refrigerators usually have a storage space closed by a door body, and store food at low temperature in the storage space.

[0003] When installing a refrigerator in a home, it's often difficult to access an elevator or the kitchen, requiring the door to be disassembled for entry. However, current refrigerator doors are typically connected to the refrigerator body via hinges. The hinges consist of a hinge plate and a hinge shaft connected to the hinge plate. The hinge plate is typically secured to the refrigerator body with screws, requiring delivery personnel to spend considerable time removing and installing the screws. This makes installation time-consuming and labor-intensive, and reduces delivery efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a refrigerator to optimize the hinge structure of the door body of the refrigerator in the related art, reduce the difficulty of disassembling and assembling the door body, and improve the disassembly and assembly efficiency.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, the present invention provides a refrigerator, which includes: a box body, which is provided with a refrigeration compartment; a door body, which is provided on the front side of the box body and is used to open and close the refrigeration compartment; and an upper hinge mechanism, including: a mounting base, which is fixed to the top of the box body; an upper hinge, which is detachably provided above the top surface of the box body, one end of the upper hinge is located directly above the mounting base, and the other end of the upper hinge is hinged to the top of the door body; a knob, which is rotatably and detachably provided on the upper hinge and the mounting base in sequence, and the upper end of the knob is exposed on the upper hinge; a guide block, which is provided below the mounting base and is rotatably connected to the lower end of the knob; wherein the knob can rotate relative to the guide block and clamp the upper hinge and the mounting base between the knob and the guide block.

[0007] In some embodiments of the present application, the knob includes an integrally formed shaft, a shaft pin and an operating handle; the shaft extends vertically; the shaft pin extends radially outward from the bottom end of the shaft; the operating handle extends radially to both sides from the top end of the shaft; a shaft hole adapted for the shaft and a pin hole adapted for the shaft pin are provided on the top surface of the guide block; the shaft hole and the pin hole both extend vertically downward, the pin hole is located on the circumference of the shaft hole and is connected to the shaft hole; a limiting cavity arranged around the circumference of the shaft hole is provided in the guide block at the bottom end of the pin hole; an adjustment surface spirally arranged around the shaft hole is formed on the top surface of the limiting cavity; one end of the adjustment surface is connected to the pin hole, and the other end of the adjustment surface surrounds the shaft hole and extends spirally downward; the shaft pin can extend into the limiting cavity through the pin hole and rotate circumferentially around the shaft hole along the adjustment surface.

[0008] In some embodiments of the present application, the adjustment surface includes an inclined portion and a flat portion, and the inclined portion and the flat portion are both arranged around the shaft hole; the upper end of the inclined portion is connected to the pin hole, and the lower end of the inclined portion surrounds the shaft hole and extends spirally downward; the flat portion is provided at the bottom end of the inclined portion, and the flat portion is parallel to the top surface of the guide block; when the shaft pin rotates to the flat portion, the bottom surface of the operating handle is abutted against the top surface of the upper hinge, and the upper hinge is pressed tightly against the mounting seat.

[0009] In some embodiments of the present application, a fitting portion is formed at the top end of the guide block, and the top openings of the axial hole and the pin hole are exposed on the top surface of the fitting portion; an assembly hole that is compatible with the fitting portion is provided on the mounting seat; the fitting portion is embedded in the assembly hole to fix the guide block circumferentially on the mounting seat, and to expose the axial hole and the pin hole in the assembly hole.

[0010] In some embodiments of the present application, the upper hinge mechanism further includes a rubber sleeve, which is sleeved on the outer peripheral wall of the guide block; a circumferentially arranged limiting ring is protruded from the peripheral wall of the guide block; when the engaging portion is embedded in the assembly hole, the rubber sleeve is clamped between the limiting ring and the bottom surface of the mounting seat.

[0011] In some embodiments of the present application, the upper hinge is provided with a through hole, which is opposite to the assembly hole; the shaft is rotatably inserted into the through hole, and the operating handle is used to press and fix the top surface of the upper hinge located on the peripheral side of the through hole.

[0012] In some embodiments of the present application, a receiving groove is recessed on the top surface of the box body; the guide block is installed in the receiving groove; the mounting seat is arranged above the top surface of the box body and is located directly above the receiving groove; the lower end of the knob extends into the receiving groove to be rotatably connected to the guide block.

[0013] In some embodiments of the present application, the refrigerator further includes a reinforcing plate, which is attached to the inner top surface of the box body. The reinforcing plate is locked and connected to the mounting seat as a whole, and the mounting seat is fixed to the top surface of the box body.

[0014] In some embodiments of the present application, the rear end of the mounting seat is provided with a protruding engaging wall extending upward, and a slot is provided at the bottom of the engaging wall near the top surface of the mounting seat; the rear end of the upper hinge is provided with a protruding raised portion; the protruding portion is inserted into the slot to limit the upper and lower positions of the rear end of the upper hinge.

[0015] In some embodiments of the present application, one or more positioning posts are protruding from the top surface of the mounting seat, and the positioning posts protrude and are exposed on the top surface of the box; and positioning holes are opened on the upper hinge and are arranged one-to-one with the positioning posts.

[0016] It can be seen from the above technical solutions that the embodiments of the present invention have at least the following advantages and positive effects:

[0017] In the refrigerator of the embodiment of the present invention, an upper hinge mechanism is used to connect the cabinet and the door. At the same time, in the upper hinge mechanism, a mounting seat, an upper hinge, a knob, and a guide block are used in conjunction. The mounting seat is provided at the top of the cabinet to facilitate installation of the upper hinge and to improve the installation strength of the upper hinge. The upper hinge is detachably provided directly above the mounting seat, and is rotated and clamped on the upper and lower sides of the mounting seat and the upper hinge in conjunction with the knob and the guide block, thereby clamping the upper hinge and the mounting seat between the knob and the guide block, so that the upper hinge is fixed to the mounting seat, thereby facilitating the removal of the upper hinge. During the process of disassembling the door, the upper hinge can be disassembled by simply rotating the knob in the opposite direction. There is no need to disassemble the mounting seat or to use screws for disassembly and fixing. This saves disassembly and assembly time during transportation and improves disassembly and assembly efficiency as well as delivery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a refrigerator according to an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 Enlarged schematic diagram of the upper-middle hinge mechanism area.

[0020] Figure 3 yes Figure 2 Schematic diagram of the decomposition structure.

[0021] Figure 4 yes Figure 3 Schematic diagram of the exploded structure of the middle mount, upper hinge, knob, and guide block.

[0022] Figure 5 yes Figure 4 Schematic diagram of the structure of the middle mounting seat.

[0023] Figure 6 yes Figure 4 Schematic diagram of the structure of the upper middle hinge.

[0024] Figure 7 yes Figure 4 Assembly diagram of the middle mounting base and upper hinge.

[0025] Figure 8 yes Figure 4 Schematic diagram of the structure of the middle knob.

[0026] Figure 9 yes Figure 4 Schematic diagram of the structure of the middle guide block.

[0027] Figure 10 yes Figure 9 Schematic diagram of the structure from another perspective.

[0028] Figure 11 yes Figure 9 A cross-sectional view of .

[0029] Figure 12 yes Figure 4 Schematic diagram of the assembly structure of the middle knob and guide block.

[0030] Figure 13 yes Figure 12 Schematic diagram of the structure in another state.

[0031] Figure 14 yes Figure 4 Assembly diagram of the middle knob.

[0032] Figure 15 yes Figure 14 Schematic diagram of the structure of the middle knob after assembly.

[0033] Figure 16 yes Figure 15 Schematic diagram of the structure of the middle knob in the locked state.

[0034] Figure 17 yes Figure 2 Another assembly diagram of the middle and upper hinge mechanism.

[0035] Figure 18 yes Figure 2 Schematic diagram of disassembly and assembly of the upper middle hinge.

[0036] The accompanying drawings are marked as follows: 1. Box body; 11. First fixing hole; 12. Receiving groove; 2. Door body; 30. Upper hinge mechanism; 40. Lower hinge mechanism; 3. Mounting seat; 31. Second fixing hole; 32. Assembly hole; 33. Snap-on wall; 331. Slot; 34. Positioning column; 4. Upper hinge; 41. Hinge plate; 411. Positioning hole; 412. Through hole; 413. Lifting portion; 42. Hinge shaft; 5. Knob; 51. Shaft portion; 52. Shaft pin; 53. Operating handle; 6. Guide block; 601. Fitting portion; 602. Limiting ring; 61. Shaft hole; 62. Pin hole; 63. Limiting cavity; 64. Adjusting surface; 641. Inclined portion; 642. Plane portion; 643. Stop wall; 7. Rubber sleeve; 8. Reinforcing plate; 81. Third fixing hole; 9. Hinge cover. DETAILED DESCRIPTION

[0037] Typical embodiments embodying the features and advantages of the present invention are described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations herein are intended to be illustrative rather than limiting.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0041] Currently, refrigerator doors are usually connected to the refrigerator body through hinges. The hinges include a hinge plate and a hinge shaft connected to the hinge plate. The hinge plate is generally fixed to the refrigerator body by screws. Delivery personnel need to spend a long time to remove and install the screws, which is time-consuming and labor-intensive to install and deliver, and has low delivery efficiency.

[0042] For ease of description, unless otherwise specified, the directions of up, down, left, right, front, and back in this article are all based on the state of the refrigerator when it is in use. The refrigerator door is the front, the opposite direction is the back, and the vertical direction is the up and down direction.

[0043] Figure 1 It is a structural schematic diagram of a refrigerator according to an embodiment of the present invention. Figure 2 yes Figure 1 An enlarged schematic diagram of the middle and upper hinge mechanism 30 area.

[0044] See also Figure 1 and Figure 2 The refrigerator provided by the embodiment of the present invention mainly includes a cabinet 1, a door 2 and a hinge mechanism.

[0045] The box body 1 adopts a rectangular hollow structure. It is understandable that the box body 1 can also adopt a hollow shell structure of other shapes.

[0046] The cabinet 1 can be provided with multiple, mutually separated refrigeration compartments (not shown in the figure). Each of the separated refrigeration compartments can be used as an independent storage space, such as a freezer, refrigerator, and temperature-changing chamber, to meet different refrigeration requirements such as freezing, refrigeration, and temperature-changing according to different food types, and to store them. The multiple refrigeration compartments can be arranged vertically or horizontally.

[0047] A box liner (not shown) is provided in the box body 1, and a refrigeration compartment is formed in the box liner. It is understandable that a plurality of box liner can be provided in the box body 1, and each box liner can form one or more refrigeration compartments.

[0048] See also Figure 1 The door 2 is provided at the front side of the refrigerator body 1 for opening and closing the refrigeration compartment. The door 2 and the refrigerator body 1 may be connected by two or more hinge mechanisms, the hinge axes of which are arranged along the same axis, so that the door 2 of the refrigerator can rotate about the axis to open and close the refrigerator door 2 and open and close the corresponding refrigeration compartment.

[0049] See also Figure 1In some embodiments, the hinge mechanism includes an upper hinge mechanism 30 and a lower hinge mechanism 40. The upper hinge mechanism 30 is provided at one end of the top of the door body 2, and the top end of the door body 2 is detachably hinged to the hinge shaft of the upper hinge mechanism 30. The lower hinge mechanism 40 is provided at one end of the bottom of the door body 2 and corresponds to the upper hinge mechanism 30. The hinge shafts of the upper hinge mechanism 30 and the lower hinge mechanism 40 are arranged along the same axis, and the corresponding end portion of the bottom of the door body 2 is detachably hinged to the hinge shaft of the lower hinge mechanism 40, so that the door body 2 can rotate around the axis to realize the opening and closing of the refrigerator door body 2.

[0050] Figure 3 yes Figure 2 Schematic diagram of the decomposition structure. Figure 4 yes Figure 3 Schematic diagram of the exploded structure of the middle mounting seat 3, upper hinge 4, knob 5 and guide block 6.

[0051] See also Figures 2 to 4 In some embodiments, the upper hinge mechanism 30 includes a mounting base 3, an upper hinge 4, a knob 5, a guide block 6, a rubber sleeve 7, a reinforcing plate 8 and a hinge cover 9.

[0052] The mounting base 3 is fixed to the corner of the top surface of the box body 1 and is used to provide an installation position and installation space for the upper hinge 4, the knob 5, etc.

[0053] Figure 5 yes Figure 4 Schematic diagram of the structure of the middle mounting seat.

[0054] See also Figure 3 and Figure 5 In some embodiments, one or more first fixing holes 11 are defined on the top surface of the housing 1. The plurality of first fixing holes 11 are spaced apart on the top surface of the housing 1. The mounting base 3 is defined with second fixing holes 31 corresponding to the first fixing holes 11. The mounting base 3 is secured to the top surface of the housing 1 using screws inserted through the first fixing holes 11 and the second fixing holes 31.

[0055] In some embodiments, the second fixing hole 31 can be a waist hole or an oblong hole structure, so that the position of the movable mounting base 3 on the top surface of the box body 1 can be adjusted, so that the mounting base 3 can be more accurately installed on the top surface of the box body 1, and the hinge 4 can be installed and connected more accurately.

[0056] See also Figure 3 The reinforcing plate 8 is provided on the inner top surface of the box body 1 and is directly opposite to the bottom of the mounting seat 3. The reinforcing plate 8 is used to increase the structural strength of the top surface of the box body 1, and the reinforcing plate 8 is used to cooperate with the mounting seat 3 to fix the mounting seat 3 on the top surface of the box body 1.

[0057] Specifically, a third fixing hole 81 is formed on the reinforcing plate 8, which is arranged opposite to the first fixing hole 11 and the second fixing hole 31. Screws can be sequentially inserted through the first fixing hole 11, the second fixing hole 31, and the third fixing hole 81, thereby securing the mounting base 3 and the reinforcing plate 8 to the box body 1.

[0058] It should be noted that in some other embodiments, the mounting base 3 can also be fixed directly to the inner top surface of the box body 1 by screws, that is, fixed inside the box body 1. For example, before the box body 1 is foamed, the mounting base 3 can be fixed to the inner top surface of the box body 1 by screws, and then when the box body 1 is foamed, the mounting base 3 can be buried inside the box body 1.

[0059] See also Figures 3 to 5 In some embodiments, the mounting base 3 is provided with an assembly hole 32, which vertically penetrates the mounting base 3. The assembly hole 32 is used for the knob 5 to be movably installed in the assembly hole 32.

[0060] See also Figures 3 to 5 In some embodiments, the rear end of the mounting seat 3 is provided with a snap-in wall 33 that bends and extends upward. The snap-in wall 33 protrudes from the top surface of the box body 1 and is used for detachably snap-in installation of the rear end of the upper hinge 4.

[0061] See also Figure 5 In some embodiments, the engaging wall 33 can be formed by cutting a portion of the plate material of the mounting base 3 and then bending it upward, thereby forming the engaging wall 33 and the mounting base 3 as one piece. It is understood that in other embodiments, the engaging wall 33 can also be integrally formed on the top surface of the mounting base 3 during the casting process.

[0062] Figure 6 yes Figure 4 Schematic diagram of the structure of the middle upper hinge 4.

[0063] See also Figure 5 The upper hinge 4 is located outside the housing 1 and above the top surface of the mounting base 3. The rear end of the upper hinge 4 is fixed to the top of the housing 1, and the front end of the upper hinge 4 is hinged to one end of the top of the door 2, thereby enabling the door 2 to be opened and closed. The rear end of the upper hinge 4 is detachably snap-fitted to the mounting base 3, allowing the upper hinge 4 to be directly removed from the top of the housing 1 without the need for screw removal, saving steps and time.

[0064] In some embodiments, the upper hinge 4 includes a hinge plate 41 and a hinge shaft 42 protruding from the front end of the hinge plate 41. The hinge plate 41 is detachably fixed to the mounting base 3 and the top of the box body 1, and the hinge shaft 42 is used to rotate with the door body 2.

[0065] In some embodiments, the hinge shaft 42 is detachably connected to the door body 2, allowing the upper hinge 4 to be completely removed from the housing 1 and the door body 2 for easy assembly and disassembly and separate transportation. For example, a shaft cavity is recessed at the corresponding end of the top of the door body 2, and the hinge shaft 42 is detachably inserted into the shaft cavity and can rotate relative to the shaft cavity, thereby achieving a rotational and detachable connection between the hinge shaft 42 and the door body 2.

[0066] See also Figures 2 to 6 In some embodiments, an upwardly extending positioning post 34 is protruding from the top surface of the mounting base 3 and exposed on the top surface of the housing 1. A positioning hole 411 is formed on the hinge plate 41, which is arranged opposite to the positioning post 34 on the mounting base 3. The hinge plate 41 of the upper hinge 4 can be accurately and quickly positioned and installed on the mounting base 3 through the positioning hole 411.

[0067] In some embodiments, two positioning posts 34 and two positioning holes 411 are respectively provided, and are arranged at intervals on the left and right. It is understandable that multiple groups of positioning posts 34 and positioning holes 411 can also be provided, and the positioning posts 34 and positioning holes 411 can correspond to each other one by one.

[0068] See also Figures 2 to 5 The hinge plate 41 is provided with a through hole 412 arranged opposite to the assembly hole 32. The through hole 412 is used for the knob 5 to be movably installed in the through hole 412 and the assembly hole 32 in sequence.

[0069] See also Figures 2 to 5 In some embodiments, the hinge plate 41 is provided with a rearwardly extending raised portion 413. A slot 331 is defined at the bottom of the engaging wall 33, near the top surface of the mounting base 3. The raised portion 413 of the hinge plate 41 is removably inserted and fixed into the slot 331, thereby enabling the rear end of the upper hinge 4 to be engaged and fixed to the mounting base 3, thereby limiting the rear end of the upper hinge 4 in the vertical direction.

[0070] Figure 7 yes Figure 4 Schematic diagram of the assembly of the middle mounting seat 3 and the upper hinge 4.

[0071] See also Figures 5 to 7 In some embodiments, the tilting portion 413 gradually extends upward in a tilted manner from front to back and gradually moves away from the bottom surface of the upper hinge 4, thereby enabling the tilting portion 413 to bend upward and tilt relative to the hinge plate 41. When the tilting portion 413 is inserted and fixed in the slot 331 of the clamping wall 33, the front end of the hinge plate 41 can tilt upward, such as Figure 7 As shown, the positioning hole 411 of the hinge plate 41 can be aligned with the positioning column 34 on the mounting base 3 , so that the hinge plate 41 can be smoothly and accurately installed on the mounting base 3 .

[0072] Figure 8 yes Figure 4 Schematic diagram of the structure of the middle knob 5.

[0073] See also Figures 2 to 8 The knob 5 is rotatably and detachably mounted on the upper hinge 4 and the mounting base 3. The upper end of the knob 5 is exposed on the top surface of the upper hinge 4 and is used to engage and clamp the top surface of the upper hinge 4. The lower end of the knob 5 passes through the through hole 412 in the upper hinge 4 and the assembly hole 32 in the mounting base 3 to be rotatably connected to the guide block 6.

[0074] In some embodiments, the knob 5 includes an integrally formed shaft portion 51 , a shaft pin 52 , and a manipulation handle 53 .

[0075] The shaft portion 51 extends vertically and is rotatably inserted into the through hole 412 and the assembly hole 32 in sequence.

[0076] The shaft pin 52 is provided at the bottom end of the shaft portion 51 and is formed by protruding radially outward from the bottom end of the shaft portion 51 . The shaft pin 52 is used to engage with the guide block 6 , thereby clamping the guide block 6 on the bottom surface of the mounting seat 3 .

[0077] In some embodiments, two axle pins 52 are provided, and the two axle pins 52 are symmetrically arranged on the outer periphery of the shaft portion 51. The two axle pins 52 cooperate to evenly distribute the force between the guide block 6 and the knob 5 around the axle pins 52, thereby making the rotation of the knob 5 more stable.

[0078] It is understandable that in some other embodiments, three or more axle pins 52 are also provided and are evenly spaced circumferentially arranged on the outer periphery of the shaft portion 51 .

[0079] The operating handle 53 is provided at the top of the shaft portion 51 and extends radially to both sides from the top of the shaft portion 51. The operating handle 53 is used for manual operation by a staff member to control the rotation of the entire knob 5. It is understood that the operating handle 53 can be a flat plate structure or a cylindrical structure.

[0080] The size of the operating handle 53 is larger than the diameter of the through hole 412. The operating handle 53 is used to press and clamp the upper hinge 4 on the top surface of the through hole 412, and then cooperate with the axle pin 52 to clamp the upper hinge 4 and the mounting seat 3 between the knob 5 and the guide block 6.

[0081] Figure 9 yes Figure 4 Schematic diagram of the structure of the middle guide block 6. Figure 10 yes Figure 9 Schematic diagram of the structure from another perspective. Figure 11 yes Figure 9 A cross-sectional view of .

[0082] See also Figures 2 to 11 The guide block 6 is provided below the mounting base 3 and is rotatably connected to the lower end of the knob 5. When the knob 5 rotates relative to the guide block 6, the distance between the knob 5 and the guide block 6 can be changed, thereby clamping the upper hinge 4 and the mounting base 3 between the knob 5 and the guide block 6.

[0083] See also Figure 2 and Figure 3 In some embodiments, a receiving groove 12 is recessed downwardly on the top surface of the housing 1, and the guide block 6 is mounted within the receiving groove 12. The receiving groove 12 is isolated from the interior of the housing 1, allowing the guide block 6 to be positioned outside the housing 1 without affecting the internal structure of the housing 1. Simultaneously, the mounting base 3 is disposed above the top surface of the housing 1, directly above the receiving groove 12, with the assembly hole 32 aligned with the top of the receiving groove 12. Therefore, the lower end of the knob 5 can pass through the assembly hole 32 and extend into the receiving groove 12, thereby being rotatably connected to the guide block 6.

[0084] Figure 12 yes Figure 4 Schematic diagram of the assembly structure of the middle knob 5 and the guide block 6. Figure 13 yes Figure 12 Schematic diagram of the structure in another state.

[0085] See also Figures 9 to 13 In some embodiments, the top surface of the guide block 6 is provided with an axial hole 61 and a pin hole 62, both extending vertically downward. The pin hole 62 is located around and communicates with the axial hole 61. The axial hole 61 is adapted to fit within the shaft portion 51, which is rotatably disposed within the axial hole 61. The pin hole 62 is adapted to fit within the shaft pin 52, which can extend into the pin hole 62 and move up and down along the pin hole 62.

[0086] A limiting cavity 63 is provided at the bottom end of the pin hole 62 within the guide block 6, surrounding the circumference of the shaft hole 61. The limiting cavity 63 communicates with both the shaft hole 61 and the pin hole 62. Therefore, the bottom end of the shaft portion 51 can extend into the center of the limiting cavity 63, and the shaft pin 52 can enter the limiting cavity 63 through the bottom end of the pin hole 62. Furthermore, the shaft pin 52 can rotate within the limiting cavity 63 as the shaft portion 51 rotates.

[0087] The top surface of the limiting cavity 63 forms an adjustment surface 64 that spirally surrounds the shaft hole 61. One end of the adjustment surface 64 connects to the pin hole 62, while the other end of the adjustment surface 64 spirally extends downward around the shaft hole 61. The shaft pin 52 can extend into the limiting cavity 63 through the pin hole 62 and rotate circumferentially around the shaft hole 61 along the adjustment surface 64. Therefore, as the shaft pin 52 gradually rotates downward along the adjustment surface 64, the shaft portion 51 can gradually extend into the limiting cavity 63 along with the shaft pin 52, thereby driving the operating handle 53 at the top of the shaft portion 51 to gradually approach the guide block 6, gradually reducing the distance between the operating handle 53 and the guide block 6 until the bottom surface of the operating handle 53 abuts the top surface of the upper hinge 4. At the same time, the guide block 6 abuts the bottom surface of the mounting seat 3, gradually clamping the mounting seat 3 and the upper hinge 4, thereby clamping the mounting seat 3 and the upper hinge 4 between the knob 5 and the guide block 6.

[0088] See also Figures 10 to 13 In some embodiments, the adjustment surface 64 includes an inclined portion 641 and a flat portion 642 . The inclined portion 641 and the flat portion 642 are connected to each other, and the inclined portion 641 and the flat portion 642 are both arranged around the shaft hole 61 .

[0089] The upper end of the inclined portion 641 is connected to the pin hole 62, that is, the upper end of the inclined portion 641 extends to the pin hole 62. The lower end of the inclined portion 641 surrounds the shaft hole 61 and spirally extends downward. Therefore, when the shaft pin 52 rotates downward along the inclined portion 641, the distance between the operating handle 53 and the guide block 6 can be gradually reduced.

[0090] The flat surface 642 is located at the bottom end of the inclined surface 641 and is parallel to the top surface of the guide block 6. Therefore, based on the design of the height parameters of the flat surface 642, when the axle pin 52 rotates to the flat surface 642, the bottom surface of the operating handle 53 can exactly contact the top surface of the upper hinge 4, pressing the upper hinge 4 against the mounting base 3. In other words, the upper hinge 4 and the mounting base 3 are precisely clamped and fixed between the operating handle 53 and the guide block 6.

[0091] See also Figures 10 to 13 In some embodiments, a stop wall 643 is provided inside the guide block 6. The stop wall 643 is located at the end of the flat portion 642 away from the pin hole 62. When the shaft pin 52 rotates onto the flat portion 642, the shaft pin 52 can abut against the stop wall 643, thereby limiting the knob 5 and preventing the knob 5 and the guide block 6 from rotating relative to each other.

[0092] See also Figures 3 to 13In some embodiments, a fitting portion 601 is formed at the top of the guide block 6. The fitting portion 601 is flat and matches the assembly hole 32 on the mounting seat 3. The fitting portion 601 is fitted into the assembly hole 32 so that the guide block 6 is circumferentially fixed to the mounting seat 3. The top openings of the shaft hole 61 and the pin hole 62 are exposed to the top surface of the fitting portion 601. Therefore, the top openings of the shaft hole 61 and the pin hole 62 can be exposed to the assembly hole 32, so that the shaft portion 51 and the shaft pin 52 of the knob 5 can be aligned and inserted into the shaft hole 61 and the pin hole 62. When the knob 5 rotates relative to the guide block 6, since the fitting portion 601 is fitted into the assembly hole 32, the guide block 6 will not rotate circumferentially with the knob 5. Therefore, the shaft portion 51 and the shaft pin 52 of the knob 5 can rotate forward or reverse relative to the guide block 6.

[0093] It should be noted that, in some other embodiments, the guide block 6 may also be circumferentially fixed in the receiving groove 12 and can only move up and down along the receiving groove 12, so that when the knob 5 rotates relative to the guide block 6, the guide block 6 is circumferentially limited in the receiving groove 12.

[0094] Figure 14 yes Figure 4 Assembly diagram of middle knob 5. Figure 15 yes Figure 14 Schematic diagram of the structure of the middle knob 5 after assembly. Figure 16 yes Figure 15 Schematic diagram of the structure of the middle knob 5 in the locked state.

[0095] See also Figures 14 to 16 , and combined with Figures 2 to 4 The rubber sleeve 7 is made of a flexible material and is fitted over the outer wall of the guide block 6. A circumferentially extending retaining ring 602 is protruding from the outer wall of the guide block 6 and located below the rubber sleeve 7. Therefore, when the engaging portion 601 is inserted into the assembly hole 32, the rubber sleeve 7 is sandwiched between the retaining ring 602 and the bottom surface of the mounting seat 3.

[0096] In some embodiments, the rubber sleeve 7 is an annular structure, and correspondingly, the portion of the guide block 6 corresponding to the rubber sleeve 7 is a cylindrical structure.

[0097] In some embodiments, the guide block 6 is movably disposed in the receiving groove 12 and can move vertically up and down in the receiving groove 12. Specifically, when the interlocking portion 601 is inserted into the assembly hole 32, the interlocking portion 601 can move axially along the assembly hole 32. Therefore, when the shaft pin 52 of the knob 5 rotates relative to the guide block 6 along the adjustment surface 64, the guide block 6 can gradually approach the knob 5, causing the guide block 6 to move axially upward, and causing the limiting ring 602 to gradually approach the bottom surface of the mounting seat 3, thereby causing the limiting ring 602 to squeeze the rubber sleeve 7, causing the rubber sleeve 7 to deform due to the squeezing, and then gradually causing the guide block 6 and the knob 5 to be relatively squeezed and fixed to the mounting seat 3 and the upper hinge 4 as a whole, ultimately achieving clamping and fixation of the mounting seat 3 and the upper hinge 4.

[0098] It should be noted that, in some other embodiments, the guide block 6 may also be fixedly disposed in the receiving groove 12 .

[0099] See also Figure 1 and Figure 2 The hinge cover 9 is provided on the top of the box body 1 and is used to cover and close the hinge 4, the mounting base 3 and the knob 5, thereby making the top of the box body 1 neat and beautiful in appearance.

[0100] See also Figures 14 to 16 , and combined with Figures 2 to 4 One of the installation methods of the upper hinge mechanism 30 is as follows: first place the guide block 6 in the receiving groove 12; then fix the mounting base 3 on the box body 1 so that the fitting portion 601 is aligned; then snap the upper hinge 4 onto the mounting base 3; align the shaft pin 52 of the knob 5 with the pin hole 62, as shown in FIG. Figure 14 As shown, the knob 5 is then inserted downwards and installed in the guide block 6, as shown in FIG. Figure 15 Finally, the knob 5 is rotated to rotate the shaft pin 52 of the knob 5 along the adjustment surface 64, thereby squeezing the guide block 6, so that the distance between the knob 5 and the guide block 6 is gradually reduced, and the upper hinge 4 is locked on the mounting seat 3 by squeezing the rubber sleeve 7, and the upper hinge 4 and the mounting seat 3 are clamped and fixed between the knob 5 and the guide block 6, as shown. Figure 16 shown.

[0101] During the process of locking the upper hinge 4, after the knob 5 is inserted into the guide block 6 and rotated approximately 90 degrees, the pin 52 of the knob 5 rotates to the flat portion 642 and abuts against the stop wall 643 in the guide block 6, thereby clamping the upper hinge 4 and the mounting base 3 between the knob 5 and the guide block 6. It should be noted that this rotation angle can be adjusted by adjusting the position of the adjustment surface 64 and the stop wall 643.

[0102] To unlock the upper hinge 4, one only needs to rotate the knob 5 in the opposite direction to align the pin 52 of the knob 5 with the pin hole 62, thereby allowing the knob 5 to be pulled out of the guide block 6, and the upper hinge 4 can be removed from the mounting base 3. Furthermore, since the mounting base 3 is fixed to the housing 1 by screws and does not need to be disassembled, the installation position of the upper hinge 4 is unique. When the user reinstalls the door body 2, the door body 2 will not be installed crookedly, and the installation operation is simple and quick.

[0103] Figure 17 yes Figure 2 Another assembly diagram of the middle and upper hinge mechanism 30. Figure 18 yes Figure 2 Schematic diagram of disassembly and assembly of the middle upper hinge 4.

[0104] See also Figure 17 and Figure 18 In some embodiments, another assembly method of the upper hinge mechanism 30 is as follows: the upper hinge 4 can be first mounted on the mounting base 3 by snapping, and then the upper hinge 4 and the mounting base 3 are relatively locked by the knob 5 and the guide block 6, so that the mounting base 3, the upper hinge 4, the knob 5, the guide block 6 and the rubber sleeve 7 are assembled into a whole. Figure 17 Then tighten the mounting base 3 on the top surface of the box body 1 by screws to complete the installation of the upper hinge mechanism 30, as shown Figure 17 When unlocking, the upper hinge 4 can be disassembled by rotating the knob 5 in the opposite direction. Figure 18 shown.

[0105] Based on the above technical solution, the embodiments of the present invention have at least the following advantages and positive effects:

[0106] In the refrigerator of the embodiment of the present invention, an upper hinge mechanism 30 is used to connect the cabinet 1 and the door 2. At the same time, in the upper hinge mechanism 30, a mounting base 3, an upper hinge 4, a knob 5, and a guide block 6 are used in conjunction with each other. The mounting base 3 is provided at the top of the cabinet 1, which facilitates the installation of the upper hinge 4 and can improve the installation strength of the upper hinge 4. The upper hinge 4 is detachably provided directly above the mounting base 3, and is rotated and clamped on the upper and lower sides of the mounting base 3 and the upper hinge 4 in conjunction with the knob 5 and the guide block 6. The upper hinge 4 and the mounting base 3 are then clamped and fixed between the knob 5 and the guide block 6, so that the upper hinge 4 is fixed to the mounting base 3, thereby facilitating the removal of the upper hinge 4. When disassembling the door 2, only the knob 5 needs to be rotated in the opposite direction to disassemble the upper hinge 4. There is no need to disassemble the mounting base 3 or to use screws to disassemble and fix it. This saves disassembly and assembly time during transportation and improves disassembly and assembly efficiency and delivery efficiency.

[0107] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are intended to be illustrative and exemplary rather than 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-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. All changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A refrigerator, characterized in that: include: A box body, which contains a refrigeration compartment; A door body is provided on the front side of the box body and is used to open and close the refrigeration compartment; and Upper hinge mechanism, comprising: A mounting base, fixed to the top of the box; an upper hinge detachably disposed above the top surface of the box body, one end of the upper hinge being located directly above the mounting seat, and the other end of the upper hinge being hinged to the top of the door body; A knob is rotatably and detachably mounted on the upper hinge and the mounting seat in sequence, with the upper end of the knob exposed on the upper hinge; A guide block is provided below the mounting seat and is rotatably connected to the lower end of the knob; wherein the knob is capable of rotating relative to the guide block, and the upper hinge and the mounting seat are clamped and fixed between the knob and the guide block; The knob includes an integrally formed shaft portion, a shaft pin, and a manipulation handle; The shaft portion extends vertically; the shaft pin protrudes radially outward from the bottom end of the shaft portion; the operating handle extends radially to both sides from the top end of the shaft portion; The top surface of the guide block is provided with an axial hole adapted to the axial portion and a pin hole adapted to the axial pin; the axial hole and the pin hole both extend vertically downward, and the pin hole is located on the circumferential side of the axial hole and is connected to the axial hole; A limiting cavity is provided in the guide block at the bottom end of the pin hole and is arranged around the circumference of the shaft hole; an adjustment surface is formed on the top surface of the limiting cavity and is arranged spirally around the shaft hole; one end of the adjustment surface is connected to the pin hole, and the other end of the adjustment surface surrounds the shaft hole and extends spirally downward; The shaft pin can extend into the limiting cavity through the pin hole and rotate circumferentially around the shaft hole along the adjusting surface.

2. The refrigerator according to claim 1, wherein The adjusting surface includes an inclined portion and a flat portion, and both the inclined portion and the flat portion are arranged around the shaft hole; The upper end of the inclined portion is connected to the pin hole, and the lower end of the inclined portion surrounds the shaft hole and spirally extends downward; The flat surface portion is provided at the bottom end of the inclined surface portion, and the flat surface portion is parallel to the top surface of the guide block; When the shaft pin rotates to the plane portion, the bottom surface of the operating handle abuts against the top surface of the upper hinge, and the upper hinge is pressed tightly against the mounting seat.

3. The refrigerator according to claim 1, wherein The top end of the guide block is formed with an engaging portion, and the top openings of the shaft hole and the pin hole are exposed on the top surface of the engaging portion; The mounting seat is provided with an assembly hole adapted to the engaging portion; The engaging portion is embedded in the assembly hole to fix the guide block circumferentially on the mounting seat, and the shaft hole and the pin hole are exposed in the assembly hole.

4. The refrigerator according to claim 3, wherein The upper hinge mechanism further comprises a rubber sleeve, which is sleeved on the outer peripheral wall of the guide block; A circumferentially arranged limiting ring is protruded from the peripheral wall of the guide block; When the engaging portion is embedded in the assembly hole, the rubber sleeve is clamped between the limiting ring and the bottom surface of the mounting seat.

5. The refrigerator according to claim 3, wherein The upper hinge is provided with a through hole, which is opposite to the assembly hole; the shaft portion is rotatably inserted into the through hole, and the operating handle is used to press and fix on the top surface of the upper hinge located on the peripheral side of the through hole.

6. The refrigerator according to claim 1, wherein A receiving groove is concavely provided on the top surface of the box body; the guide block is installed in the receiving groove; The mounting seat is provided above the top surface of the box body and is located directly above the receiving groove; The lower end of the knob extends into the receiving groove to be rotatably connected to the guide block.

7. The refrigerator according to claim 1, wherein The refrigerator further comprises a reinforcing plate, which is attached to the inner top surface of the box body. The reinforcing plate is locked and connected to the mounting seat as a whole, and the mounting seat is fixed to the top surface of the box body.

8. The refrigerator according to claim 1, wherein A clamping wall extending upward is protruded from the rear end of the mounting seat, and a slot is provided at the bottom of the clamping wall near the top surface of the mounting seat; A tilting portion is protruded from the rear end of the upper hinge; the tilting portion is inserted into the slot to limit the rear end of the upper hinge up and down.

9. The refrigerator according to claim 1, wherein One or more positioning posts are protruding from the top surface of the mounting seat, and the positioning posts protrude and are exposed on the top surface of the box body; The upper hinge is provided with positioning holes which are arranged in a one-to-one correspondence with the positioning posts.

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