refrigerator

Abstract

The present invention relates to a refrigerator, which includes a housing, a door, and an upper hinge mechanism. The upper hinge mechanism includes a mounting seat, an upper hinge, and a pressure rod. The mounting seat is fixed to the top of the housing; the upper hinge is detachably arranged above the top surface of the housing; one end of the pressure rod is rotatably connected to the mounting seat, and its rotation center is located on the outer peripheral side of the upper hinge; the other end is detachably clamped on the mounting seat and distributed above the top surface of the upper hinge to clamp the upper hinge between the mounting seat and the pressure rod. The upper hinge is detachably arranged on the top surface of the housing, and the pressure rod is rotated to clamp the upper hinge between the mounting seat and the pressure rod, making it easy to disassemble the upper hinge from the housing. During the process of disassembling the door, the upper hinge can be disassembled by simply rotating the pressure rod to the outer peripheral side of the upper hinge. There is no need to disassemble the mounting seat and the pressure rod, and there is no need to use screws for disassembly and fixing. This 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 pressure rod, one end of which is rotatably connected to the mounting base, and the rotation center of which is located on the outer peripheral side of the upper hinge; the other end of which is detachably clamped on the mounting base and distributed above the top surface of the upper hinge, so as to clamp and fix the upper hinge between the mounting base and the pressure rod.

[0007] In some embodiments of the present application, the mounting seat is provided with a mounting wall and a first clamping wall which protrude from the top surface of the box body and are arranged at intervals; the mounting wall is located on the outer peripheral side of the upper hinge; one end of the pressure rod is rotatably connected to the mounting wall; the pressure rod is detachably clamped to the first clamping wall, and the upper hinge is clamped and fixed between the mounting seat and the pressure rod.

[0008] In some embodiments of the present application, the mounting wall includes a rotating shaft portion protruding from the top surface of the box body and extending upward, and a first limiting portion protruding laterally from one side or both sides of the top of the rotating shaft portion; the end of the pressure rod connected to the mounting wall is provided with an axial hole, and the end of the pressure rod is rotatably sleeved on the rotating shaft portion through the axial hole, and is limited to the lower side of the first limiting portion.

[0009] In some embodiments of the present application, the pressure rod is provided with an assembly opening on the peripheral side of the axial hole, and the assembly opening enables the axial hole to form a hole structure with a circumferential opening; a protrusion is protruded from the top surface of the box body or the top surface of the mounting seat; when the end of the pressure rod is engaged with the first engaging wall, the protrusion is opposite to the assembly opening and can be extended into and engaged in the assembly opening; and when the protrusion is pressed by external force, the protrusion can withdraw from the assembly opening.

[0010] In some embodiments of the present application, the upper hinge is provided with a through hole arranged opposite to the first clamping wall; the first clamping wall passes through the through hole and protrudes from the top surface of the upper hinge to extend upward.

[0011] In some embodiments of the present application, the first clamping wall includes a clamping portion protruding from the top surface of the upper hinge and extending upward, and a second limiting portion protruding laterally from one or both sides of the top of the clamping portion; the end of the pressure rod is provided with a bayonet arranged opposite to the clamping portion; the end of the pressure rod is clamped to the clamping portion through the bayonet, and is clamped and limited by the second limiting portion to the lower side of the second limiting portion.

[0012] In some embodiments of the present application, the mounting seat is embedded in the inner side of the top of the box, and the first clamping wall and the mounting wall are respectively passed through the top surface of the box and extend upward; or, the mounting seat is fixed above the top surface of the box, and the first clamping wall and the mounting wall are respectively extended upward.

[0013] In some embodiments of the present application, the rear end of the mounting seat is provided with a second clamping wall protruding from the top surface of the box and extending upward; a slot is provided at the bottom of the second clamping wall near the top surface of the mounting seat; a raised portion is protruding from the rear end of the upper hinge; the raised portion is inserted into the slot to limit the upper and lower positions of the rear end of the upper hinge.

[0014] In some embodiments of the present application, a laterally extending limiting rib is protruded from one side wall of the second clamping wall in the left and right directions, and the slot is formed on the lower side of the limiting rib; the raised portion is clamped and limited on the lower side of the limiting rib.

[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, and a pressure rod are used in combination. 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. At the same time, one end of the pressure rod is rotatably connected to the mounting seat, and the other end is detachably clamped to the mounting seat. The upper hinge is clamped and fixed between the mounting seat and the pressure rod, facilitating disassembly of the upper hinge from the cabinet. During disassembly of the door, the upper hinge can be disassembled by simply rotating the pressure rod to the outer peripheral side of the upper hinge. There is no need to disassemble the mounting seat and the pressure rod, and there is no need to use screws to disassemble and fix it. This helps save disassembly and assembly time during transportation and improves disassembly and assembly efficiency and 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 structure of the middle mounting seat.

[0022] Figure 5 yes Figure 3 Schematic diagram of the structure of the upper middle hinge.

[0023] Figure 6 yes Figure 3 Schematic diagram of the structure of the intermediate pressure rod.

[0024] Figure 7 yes Figure 3 Assembly diagram of the middle mounting seat.

[0025] Figure 8 yes Figure 3 Assembly diagram of the upper middle hinge.

[0026] Figure 9 yes Figure 3 Schematic diagram of the assembly status of the intermediate pressure rod.

[0027] Figure 10 yes Figure 9 Schematic diagram of the structure in another state.

[0028] Figure 11 yes Figure 10 Schematic diagram of the structure after the upper middle hinge is disassembled.

[0029] Figure 12 yes Figure 3 Another assembly diagram of the middle mounting seat.

[0030] Figure 13 is Figure 12 Assembly diagram of the hinge and pressure rod installed on the basis.

[0031] Figure 14 yes Figure 13 Schematic diagram of the structure after assembly.

[0032] The accompanying drawings are marked as follows: 1. box body; 11. through hole; 12. first fixing hole; 13. protrusion; 2. door body; 30. upper hinge mechanism; 40. lower hinge mechanism; 3. mounting seat; 31. mounting wall; 311. rotating shaft portion; 312. first limiting portion; 32. first clamping wall; 321. clamping portion; 322. second limiting portion; 33. second clamping wall; 331. slot; 332. limiting rib; 34. second fixing hole; 35. positioning column; 4. upper hinge; 41. hinge plate; 411. positioning hole; 412. through hole; 413. tilting portion; 42. hinge shaft; 5. pressure rod; 51. shaft hole; 511. assembly port; 52. clamping port; 53. first limiting arm; 54. second limiting arm; 6. hinge cover; 7. reinforcement plate; 71. third fixing hole. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] The cabinet 1 can be provided with multiple, mutually separated refrigeration compartments (not shown). Each of these compartments can function as an independent storage space, such as a freezer, refrigerator, or temperature-controlled room. This allows for storage of food in various formats, including freezing, refrigeration, and temperature-controlled. The multiple refrigeration compartments can be arranged vertically or horizontally.

[0043] 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.

[0044] 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.

[0045] See also Figure 1 In 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.

[0046] Figure 3 yes Figure 2 Schematic diagram of the decomposition structure.

[0047] See also Figure 2 and Figure 3 In some embodiments, the upper hinge mechanism 30 includes a mounting base 3, an upper hinge 4, a pressure rod 5 and a hinge cover 6.

[0048] The mounting seat 3 is fixed to the corner of the top of the box body 1 to provide an installation position and installation space for the upper hinge 4 and the pressure rod 5.

[0049] Figure 4 yes Figure 3 Schematic diagram of the structure of the middle mounting seat 3.

[0050] See also Figure 3 and Figure 4 In some embodiments, a mounting wall 31 extending upwardly and bending is provided on one side edge of the mounting seat 3. The mounting wall 31 protrudes from the top surface of the box body 1, and the mounting wall 31 is used for hinged installation of one end of the pressure rod 5.

[0051] The mounting seat 3 is further provided with a first clamping wall 32 extending upward. The first clamping wall 32 protrudes from the top surface of the box body 1 and is spaced apart from the mounting wall 31. The mounting wall 31 is used for detachably clamping the other end of the pressure rod 5.

[0052] See also Figure 2 and Figure 4 In some embodiments, the rear end of the mounting seat 3 is provided with a second clamping wall 33 that bends and extends upward. The second clamping wall 33 protrudes from the top surface of the box body 1 and is used for the rear end of the upper hinge 4 to be detachably clamped and installed.

[0053] See also Figure 2 and Figure 3 In some embodiments, the mounting base 3 is fixed on the inner top surface of the box body 1, such as by screw fixation, and is fixed to the inner top surface of the box body 1 as a whole. The mounting base 3 is buried in the foam layer, that is, the mounting base 3 can be buried inside the box body 1. At the same time, the top surface of the box body 1 is provided with through holes 11 that are respectively arranged opposite to the mounting wall 31, the first clamping wall 32 and the second clamping wall 33. The mounting wall 31, the first clamping wall 32 and the second clamping wall 33 can respectively pass through the top surface of the box body 1 through the corresponding through holes 11 and extend upward. This solution can hide the mounting base 3 inside the box body 1, making the appearance of the refrigerator neat and beautiful, and can also improve the installation strength of the upper hinge 4.

[0054] In some embodiments, a first fixing hole 12 is provided on the top surface of the box body 1, and a second fixing hole 34 is provided on the mounting base 3, which is arranged corresponding to the first fixing hole 12. The mounting base 3 is fixed to the inner top surface of the box body 1 by screws inserted through the first fixing hole 12 and the second fixing hole 34.

[0055] It should be noted that, in some other embodiments, the mounting base 3 can also be fixed directly to the top surface of the box body 1 by screws, that is, fixed to the outside of the box body 1. For example, the mounting base 3 is fixed above the top surface of the box body 1 by screws inserted into the fixing holes.

[0056] Figure 5 yes Figure 3 Schematic diagram of the structure of the middle upper hinge 4.

[0057] See also Figure 5The upper hinge 4 is located above the top surface of the box body 1, that is, the upper hinge 4 is located on the outside of the box body 1. The rear end of the upper hinge 4 is fixed to the top of the box body 1, and the front end of the upper hinge 4 is hinged to one end of the top of the door body 2, thereby realizing the opening and closing of the door body 2. At the same time, the rear end of the upper hinge 4 is detachably mounted on the mounting base 3, allowing the upper hinge 4 to be directly removed from the top of the box body 1 without the need for screw removal, saving operation steps and time.

[0058] 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.

[0059] 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.

[0060] See also Figures 2 to 5 In some embodiments, the top surface of the mounting base 3 is provided with an upwardly extending positioning post 35. The positioning post 35 passes through the top of the housing 1 and is exposed on the top surface of the housing 1. In other words, the positioning post 35 protrudes from the top surface of the housing 1 and extends upward. The hinge plate 41 is provided with a positioning hole 411 that is arranged opposite the positioning post 35 on the mounting base 3. The positioning hole 411 allows the hinge plate 41 of the upper hinge 4 to be accurately and quickly positioned and installed on the mounting base 3.

[0061] In some embodiments, two positioning posts 35 and two positioning holes 411 are provided, spaced apart from each other. It is understood that multiple groups of positioning posts 35 and positioning holes 411 may be provided, with one-to-one correspondence between the positioning posts 35 and the positioning holes 411.

[0062] See also Figure 2 、 Figure 4 and Figure 5 The hinge plate 41 is provided with a through-hole 412 arranged opposite the first engaging wall 32. The hinge plate 41 is removably mounted on the first engaging wall 32 of the mounting base 3 via the through-hole 412, thereby securing the upper hinge 4 above the mounting base 3 and allowing the upper hinge 4 to be easily removed from the first engaging wall 32. Furthermore, the first engaging wall 32 extends upward through the through-hole 412, protruding from the top surface of the upper hinge 4, and provides a compatible engaging structure and engaging position for one end of the pressure rod 5.

[0063] See also Figure 2 、 Figure 4and Figure 5 The rear end of the hinge plate 41 is provided with a rearwardly extending raised portion 413. A slot 331 is defined at the bottom of the second 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 secured within the slot 331, thereby securing the rear end of the upper hinge 4 to the mounting base 3 and limiting the rear end of the upper hinge 4 in the vertical direction.

[0064] In some embodiments, the tilting portion 413 gradually extends upward in a tilted manner from front to back, gradually moving 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 second engaging wall 33, the front end of the hinge plate 41 can tilt upward, thereby enabling the through hole 412 of the hinge plate 41 to face the first engaging wall 32, thereby allowing the hinge plate 41 to be smoothly and detachably mounted on the first engaging wall 32.

[0065] In some embodiments, a laterally extending retaining rib 332 is protruded from one side of the second engaging wall 33. A slot 331 is formed below the retaining rib 332, that is, between the retaining rib 332 and the top surface of the housing 1. The slot 331 is a laterally open structure. When the raised portion 413 at the rear end of the hinge plate 41 is inserted into the slot 331, the rear end of the hinge plate 41 is relatively fixed to the top surface of the housing 1, thereby achieving vertical positional restraint of the rear end of the hinge plate 41.

[0066] Figure 6 yes Figure 3 Schematic diagram of the structure of the intermediate pressure rod 5.

[0067] See also Figure 6 , and combined with Figure 2 and Figure 3 The pressure rod 5 is provided on the mounting base 3 and is located above the upper hinge 4. One end of the pressure rod 5 is hinged to a mounting wall 31. The mounting wall 31 is located on the outer periphery of the upper hinge 4, that is, the mounting wall 31 is located outside the contour of the upper hinge 4 and does not contact the upper hinge 4. Therefore, when the pressure rod 5 rotates horizontally about the mounting wall 31, the end of the pressure rod 5 away from the mounting wall 31 can be located above the upper hinge 4 and detachably engaged with the first engaging wall 32, thereby clamping and fixing the upper hinge 4 between the mounting base 3 and the pressure rod 5, so that the upper hinge 4 is stably mounted and fixed to the top of the box body 1.

[0068] To remove the upper hinge 4, one only needs to separate the pressure rod 5 from the first engaging wall 32 and control the pressure rod 5 to rotate relative to the mounting wall 31. Since the rotation center of the pressure rod 5 is located on the outer periphery of the upper hinge 4, the pressure rod 5 can be rotated as a whole to the outside of the contour of the upper hinge 4, thereby making it easy to remove the upper hinge 4 from the mounting base 3.

[0069] It should be noted that, in some embodiments, the first clamping wall 32 may also be provided on one side of the upper hinge 4, and the first clamping wall 32 and the mounting wall 31 are provided on opposite sides of the upper hinge 4. That is, in this structure, the through hole 412 may not be provided on the upper hinge 4, and the first clamping wall 32 does not penetrate the upper hinge 4. When one end of the pressure rod 5 is hinged to the mounting wall 31 and the other end of the pressure rod 5 is clamped to the first clamping wall 32, the pressure rod 5 can span above the upper hinge 4, thereby also clamping the upper hinge 4 between the mounting base 3 and the pressure rod 5, so that the upper hinge 4 is stably mounted and fixed to the top of the box body 1.

[0070] See also Figure 2 、 Figure 4 and Figure 6 One end of the pressure rod 5 is provided with an axial hole 51 , and the pressure rod 5 can be rotatably connected to the mounting wall 31 through the axial hole 51 .

[0071] In some embodiments, the mounting wall 31 includes a rotating shaft portion 311 protruding from the top surface of the box body 1 and extending upward, and a first limiting portion 312 protruding laterally from both sides of the top of the rotating shaft portion 311, so that the end of the pressure rod 5 can be rotatably connected to the rotating shaft portion 311 through the shaft hole 51.

[0072] The rotating shaft portion 311 and the first limiting portions 312 on both sides are T-shaped structures, and the lateral dimension of the first limiting portion 312 is larger than the shaft hole 51. Therefore, when one end of the pressure rod 5 is sleeved on the rotating shaft portion 311, the first limiting portion 312 can be clamped on the top surface of the pressure rod 5 located on the side of the shaft hole 51, thereby limiting the pressure rod 5 to the lower side of the first limiting portion 312, and performing an upper limit on the hinged end of the pressure rod 5.

[0073] It is understood that in other embodiments, only one first stopper 312 may be provided, that is, only protruding laterally from one side of the top of the shaft portion 311. In this case, the shaft portion 311 and the first stopper 312 on one side form an inverted L-shaped structure, which can also limit the pressure rod 5 to the lower side of the first stopper 312, thereby limiting the upper limit of the hinged end of the pressure rod 5.

[0074] See also Figure 2 、 Figure 4 and Figure 6 In some embodiments, the compression rod 5 is provided with an assembly opening 511 around the axial hole 51. This assembly opening 511 forms a circumferentially open hole structure on the axial hole 51. Therefore, when installing the compression rod 5, the assembly opening 511 can be aligned with the rotating shaft portion 311, and the rotating shaft portion 311 can be relatively snapped into the axial hole 51 through the assembly opening 511, thereby achieving a detachable connection between the compression rod 5 and the mounting wall 31. This allows the compression rod 5 to be removed from the mounting base 3, facilitating disassembly and maintenance of the compression rod 5.

[0075] See also Figure 4 and Figure 6 In some embodiments, the width of the assembly opening 511 can be adapted to the thickness of the shaft portion 311 and smaller than the width of the shaft portion 311, so that the assembly opening 511 can only enable the shaft hole 51 to be snap-fitted onto the shaft portion 311 at a specific assembly angle, which is conducive to relatively confining the shaft portion 311 within the shaft hole 51 for rotation.

[0076] It should be noted that, in some other embodiments, the shaft hole 51 may also be a closed hole structure, and the pressure rod 5 and the mounting seat 3 may be hingedly connected as one before leaving the factory.

[0077] See also Figures 2 to 6 In some embodiments, a protrusion 13 is provided on the top surface of the housing 1. The protrusion 13 is integrally formed on the top surface of the housing 1. The protrusion 13 can be formed by bending a portion of the top wall of the housing 1 upward, or it can be fixed to the top surface of the housing 1 by welding. The protrusion 13 is located on one side of the mounting wall 31. One end of the protrusion 13 is fixedly connected to the top surface of the housing 1, and the other end of the protrusion 13 is configured to extend into the assembly opening 511 and engage with the assembly opening 511.

[0078] Specifically, when the end of the compression rod 5 is engaged with the first engaging wall 32, the protrusion 13 coincides with the assembly opening 511. Therefore, the protrusion 13 can extend into and engage with the assembly opening 511, preventing the compression rod 5 from rotating relative to the protrusion 13 and allowing the compression rod 5 to remain stably engaged with the mounting wall 31 and the first engaging wall 32. Furthermore, when the upper hinge 4 needs to be removed, external pressure on the protrusion 13 allows the protrusion 13 to exit the assembly opening 511, allowing the compression rod 5 to rotate normally relative to the mounting wall 31 and engage with the first engaging wall 32.

[0079] In some embodiments, the protrusion 13 is also made of an elastic metal material. For example, the protrusion 13 is formed by bending a portion of the top wall of the box 1 upward. In the absence of external pressure, the metal elastic arm can remain protruding from the top surface of the box 1. When external pressure is applied, it can be flush with the top surface of the box 1. This allows the protrusion 13 to be inserted into the assembly opening 511 or to be removed from the assembly opening 511.

[0080] It should be noted that, in some other embodiments, the protrusion 13 may also realize elastic expansion and contraction performance of the protrusion 13 through a spring structure, thereby realizing mutual engagement or disengagement between the protrusion 13 and the assembly opening 511 .

[0081] It should also be noted that in some embodiments, the protrusion 13 may also be provided on the top surface of the mounting base 3 and protrude from one side of the mounting wall 31. The protrusion 13 may extend upward through the top surface of the housing 1. In other embodiments, when the mounting base 3 is fixed above the top surface of the housing 1, the protrusion 13 may be directly exposed on the top surface of the mounting base 3 and protrude upward from the housing 1.

[0082] Still see Figure 2 、 Figure 4 and Figure 6 In some embodiments, a bayonet 52 is provided at the end of the pressure rod 5 that is engaged with the first engaging wall 32 , and the end of the pressure rod 5 can be engaged with the first engaging wall 32 through the bayonet 52 .

[0083] In some embodiments, the end of the pressure rod 5 is provided with a first limiting arm 53 and a second limiting arm 54 extending toward the first engaging wall 32. The first limiting arm 53 and the second limiting arm 54 are spaced apart, and a bayonet 52 is formed between the first limiting arm 53 and the second limiting arm 54. The first limiting arm 53 and the second limiting arm 54 can be U-shaped or C-shaped as a whole, thereby facilitating the securing of the first engaging wall 32 within the bayonet 52, i.e., between the first limiting arm 53 and the second limiting arm 54.

[0084] In some embodiments, the first engaging wall 32 includes an engaging portion 321 that protrudes from the top surface of the upper hinge 4 and extends upward, and second limiting portions 322 that protrude laterally from both sides of the top of the engaging portion 321. It should be noted that both the engaging portion 321 and the second limiting portions 322 can extend upward through the through hole 412 and protrude from the top surface of the upper hinge 4.

[0085] The end of the pressure rod 5 can be clamped to the clamping portion 321 of the first clamping wall 32 through the clamping slot 52. Since the clamping portion 321 and the second limiting portions 322 on both sides are in a T-shaped structure, and the lateral dimension of the second limiting portions 322 is larger than the clamping slot 52, when one end of the pressure rod 5 is clamped to the clamping portion 321, the second limiting portions 322 can be clamped to the top surface of the pressure rod 5 located around the clamping slot 52, thereby limiting the pressure rod 5 to the lower side of the second limiting portion 322, and performing an upper limit on the clamping end of the pressure rod 5, thereby firmly clamping the pressure rod 5 to the first clamping wall 32, and firmly clamping the upper hinge 4 between the top surface of the box body 1 and the pressure rod 5.

[0086] It is understood that in other embodiments, only one second limiting portion 322 may be provided, that is, only protruding laterally from one side of the top of the clamping portion 321. In this case, the rotating shaft portion 311 and the second limiting portion 322 on one side form an inverted L-shaped structure, which can also limit the pressure rod 5 to the lower side of the second limiting portion 322, thereby limiting the upper limit of the clamping end of the pressure rod 5.

[0087] See also Figure 1 and Figure 2 The hinge cover 6 is provided at the top of the box body 1 and is used to cover and close the hinge 4, the mounting base 3 and the pressure rod 5, thereby making the top of the box body 1 neat and beautiful in appearance.

[0088] Figure 7 yes Figure 3 Schematic diagram of the assembly of the mounting seat 3. Figure 8 yes Figure 3 Assembly diagram of the middle upper hinge 4. Figure 9 yes Figure 3 Schematic diagram of the assembly state of the intermediate pressure rod 5. Figure 10 yes Figure 9 Schematic diagram of the structure in another state.

[0089] See also Figures 7 to 10 The assembly process of the upper hinge mechanism 30 is as follows: first, fix the mounting base 3 on the box body 1, as shown in FIG. Figure 7 Then the upper hinge 4 is mounted on the mounting base 3, as shown Figure 8 Then hinge the pressure rod 5 on the mounting base 3, as shown Figure 9 Finally, rotate the lever 5 so that the lever 5 engages with the first engaging wall 32, and the upper hinge 4 is locked on the mounting base 3, as shown. Figure 10 shown.

[0090] See also Figure 7 , the mounting base 3 needs to be pre-installed and fixed on the box body 1. Specifically, before the box body 1 is foamed, the mounting base 3 can be fixed to the inside of the box body 1 with screws, and the mounting wall 31, the first clamping wall 32 and the second clamping wall 33 of the mounting base 3 are all protruded from the top surface of the box body 1. Then, when the box body 1 is foamed, the mounting base 3 can be buried inside the box body 1.

[0091] See also Figure 8 When installing the upper hinge 4, the front end of the upper hinge 4 tilts upward, allowing the raised portion 413 at the rear end of the upper hinge 4 to be inserted and fixed into the slot 331 on the second engaging wall 33. The through hole 412 of the upper hinge 4 is then aligned with the first engaging wall 32, allowing the front end of the upper hinge 4 to be installed downward, so that the upper hinge 4 is sleeved on the first engaging wall 32. That is, the first engaging wall 32 extends upward through the upper hinge 4. At this point, the positioning hole 411 on the upper hinge 4 is aligned with the positioning post 35 on the mounting base 3, so that the positioning post 35 is inserted and fixed into the positioning hole 411, thereby limiting the upper hinge 4's two degrees of freedom in the horizontal direction: the front-to-back limit and the left-to-right limit.

[0092] See also Figure 9 and Figure 10When installing the pressure rod 5, first align the assembly opening 511 of the hinged end of the pressure rod 5 with the shaft portion 311, and then hinge the pressure rod 5 on the installation wall 31. Figure 9 Then rotate the pressure rod 5 so that the bayonet 52 of the clamping end of the pressure rod 5 is clamped with the first clamping wall 32, so that the upper hinge 4 is locked between the top surface of the box body 1 and the pressure rod 5, as shown. Figure 10 At this time, the protrusion 13 can extend into and be engaged in the assembly opening 511, preventing the pressure rod 5 from rotating, thereby maintaining the locking state of the pressure rod 5 and the upper hinge 4, as shown. Figure 10 shown.

[0093] Figure 11 yes Figure 10 Schematic diagram of the structure after the middle upper hinge 4 is disassembled.

[0094] See also Figure 9 and Figure 11 When removing the upper hinge 4, it is only necessary to rotate the pressure rod 5 in the opposite direction to disengage the pressure rod 5 from the first engaging wall 32 and place the pressure rod 5 outside the upper hinge 4. Therefore, during the disassembly process, there is no need to remove the mounting base 3 and the pressure rod 5, and no need to remove or fix screws. This reduces the difficulty of disassembly and assembly, saves disassembly and assembly time, and improves disassembly and assembly efficiency and delivery efficiency.

[0095] Figure 12 yes Figure 3 Another assembly diagram of the middle mounting seat 3. Figure 13 is Figure 12 Schematic diagram of the assembly of the hinge 4 and the pressure rod 5 installed on the basis. Figure 14 yes Figure 13 Schematic diagram of the structure after assembly.

[0096] See also Figures 12 to 14 , the refrigerator of this embodiment and Figures 2 to 11 The structure of the refrigerator in FIG is similar, except that the installation position of the mounting base 3 is different.

[0097] In this embodiment, mounting base 3 is fixed to the top surface of housing 1, that is, it is fixed to the outside of housing 1. For example, mounting base 3 is fixed to the top surface of housing 1 using screws inserted through fixing holes. In this case, mounting base 3 has mounting wall 31, first engaging wall 32, and second engaging wall 33 protruding from the top surface of housing 1 and extending upward.

[0098] In some embodiments, the housing 1 is provided with a first fixing hole 12, and the mounting base 3 is provided with a second fixing hole 34, which is arranged opposite the first fixing hole 12. The second fixing hole 34 is configured as a waist hole. Due to the waist hole structure, when the mounting base 3 is fixed to the housing 1 via screws, the position of the mounting base 3 can be adjusted, such as left and right or front and back, to more precisely position the mounting base 3 and its positioning post 35, thereby enabling more accurate installation and connection of the hinge 4.

[0099] In some embodiments, the upper hinge mechanism 30 further includes a reinforcement plate 7, which is disposed on the inner top surface of the housing 1, directly below the mounting base 3. The reinforcement plate 7 serves to increase the structural strength of the top surface of the housing 1 and cooperates with the mounting base 3 to secure the mounting base 3 to the top surface of the housing 1. Specifically, the reinforcement plate 7 is provided with a third fixing hole 71, which is arranged opposite the first fixing hole 12 and the second fixing hole 34. Screws can be sequentially inserted through the first fixing hole 12, the second fixing hole 34, and the third fixing hole 71, thereby securing the mounting base 3 and the reinforcement plate 7 to the housing 1.

[0100] During the refrigerator assembly process, the position of the reinforcing plate 7 is prone to offset due to processing techniques such as foaming, which can lead to inaccurate positioning of the third fixing hole 71 and ultimately inaccurate installation of the upper hinge 4. The second fixing hole 34 of the waist-hole structure allows the position of the mounting base 3 to be adjusted, thereby ensuring a more accurate installation position for the upper hinge 4 and, consequently, for the door body 2, effectively preventing defects such as skewed door body 2 or improper closing.

[0101] It should be noted that in this embodiment, the mounting base 3 can be adjusted and fixed by a professional before shipment. When the door body 2 needs to be disassembled or assembled, the operator or user only needs to unlock or lock the upper hinge 4 using the pressure lever 5, without having to remove or assemble the screws of the mounting base 3. This facilitates operation and improves assembly and disassembly efficiency. Furthermore, the upper hinge 4 can be accurately positioned at all times, allowing even non-professionals to ensure that the door body 2 is properly installed.

[0102] Based on the above technical solution, the embodiments of the present invention have at least the following advantages and positive effects:

[0103] 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 and a pressure rod 5 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 just above the mounting base 3. At the same time, one end of the pressure rod 5 is rotatably connected to the mounting base 3, and the other end is detachably clamped to the mounting base 3. The upper hinge 4 is clamped and fixed between the mounting base 3 and the pressure rod 5, which facilitates the disassembly of the upper hinge 4 from the cabinet 1. During the disassembly of the door 2, the upper hinge 4 can be disassembled by simply rotating the pressure rod 5 to the outer peripheral side of the upper hinge 4. There is no need to disassemble the mounting base 3 and the pressure rod 5, and there is no need to use screws to disassemble and fix it. This is beneficial for saving disassembly and assembly time during transportation and improving disassembly and assembly efficiency and delivery efficiency.

[0104] 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 pressure rod, one end of which is rotatably connected to the mounting base, with its rotation center located on the outer peripheral side of the upper hinge; the other end of which is detachably clamped to the mounting base and distributed above the top surface of the upper hinge, so as to clamp and fix the upper hinge between the mounting base and the pressure rod; The mounting seat is provided with a mounting wall and a first clamping wall protruding from the top surface of the box body and arranged at intervals; the mounting wall is located on the outer peripheral side of the upper hinge; One end of the pressure rod is rotatably connected to the mounting wall; the pressure rod is detachably clamped to the first clamping wall, and the upper hinge is clamped and fixed between the mounting seat and the pressure rod; The first clamping wall includes a clamping portion protruding from the top surface of the upper hinge and extending upward, and a second limiting portion protruding laterally from one side or both sides of the top of the clamping portion; The end of the pressure rod is provided with a bayonet facing the clamping portion; The end of the pressure rod is clamped to the clamping portion through the bayonet, and is clamped by the second limiting portion and limited to the lower side of the second limiting portion.

2. The refrigerator according to claim 1, wherein The mounting wall includes a shaft portion protruding from the top surface of the box body and extending upward, and a first limiting portion protruding laterally from one side or both sides of the top of the shaft portion; An end portion of the pressure rod connected to the mounting wall is provided with an axial hole, and the end portion of the pressure rod is rotatably sleeved on the rotating shaft portion through the axial hole and is limited to the lower side of the first limiting portion.

3. The refrigerator according to claim 2, wherein: The pressure rod is provided with an assembly opening on the circumferential side of the shaft hole, and the assembly opening enables the shaft hole to form a hole structure with a circumferential opening; A protruding piece is provided on the top surface of the box body or the top surface of the mounting seat; When the end of the pressure rod is engaged with the first engaging wall, the protruding member is opposite to the assembly opening and can extend into and be engaged with the assembly opening; Furthermore, when the protruding piece is pressed by an external force, the protruding piece can withdraw from the assembly opening.

4. The refrigerator according to claim 1, wherein The upper hinge is provided with a through hole arranged opposite to the first clamping wall; the first clamping wall passes through the through hole and protrudes from the top surface of the upper hinge to extend upward.

5. The refrigerator according to claim 1, wherein The mounting seat is embedded in the top inner side of the box body, and the first clamping wall and the mounting wall are respectively provided through the top surface of the box body and extend upward; Alternatively, the mounting seat is fixed above the top surface of the box body, and the first clamping wall and the mounting wall are respectively extended upward.

6. The refrigerator according to claim 1, wherein The rear end of the mounting seat is provided with a second clamping wall protruding from the top surface of the box body and extending upward; a slot is provided at the bottom of the second 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.

7. The refrigerator according to claim 6, wherein A laterally extending limiting rib is protruded from one side wall of the second clamping wall in the left and right directions, and the slot is formed on the lower side of the limiting rib; The tilting portion is clamped and limited at the lower side of the limiting rib.

8. 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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