Door body adjusting device of refrigerator and refrigerator

Abstract

The utility model provides a door body adjusting device of a refrigerator and the refrigerator, a door hinge of the refrigerator is fixedly connected with a refrigerator body, a mounting cavity with an opening and a rotating shaft hole is formed in a door body, a hinge shaft of the door hinge is matched with the rotating shaft hole, the door body adjusting device comprises an adjusting block, a transmission assembly and a shifting rod, and the adjusting block is movably arranged in the mounting cavity; the hinge pin is fixedly connected with the hinge shaft; the transmission assembly is arranged in the mounting cavity and comprises an input end and an output end, and the output end is in transmission connection with the adjusting block; the shifting rod comprises a transmission wheel and a shifting block, the transmission wheel is rotationally connected into the mounting cavity and is in transmission connection with the input end, one end of the shifting block is connected with the circumferential side wall of the transmission wheel, and the other end of the shifting block extends out of the door body through the opening; wherein the shifting block is suitable for being subjected to external force to drive the transmission wheel to rotate, and the transmission wheel is suitable for rotatably driving the adjusting block to move through the transmission assembly so as to drive the hinge shaft to do relative movement in the extending direction of the rotating shaft hole. The door body adjusting device is easy to operate, time-saving and labor-saving.

Description

Technical Field

[0001] This application belongs to the field of refrigerator technology, and particularly relates to a refrigerator door adjustment device and a refrigerator. Background Technology

[0002] As living standards continue to improve, people's demand for multifunctional refrigerators is also gradually increasing. Multi-door refrigerators, with their multiple storage compartments, offer advantages such as large capacity and multiple functions, and have gradually become more common in the market.

[0003] However, the problem of uneven door heights in multi-door refrigerators is becoming increasingly prominent due to the large number of doors. Uneven door heights not only affect the refrigerator's appearance, but more importantly, they cause insufficient overlap between the door seals and the refrigerator body, affecting insulation performance and leading to condensation and frost buildup inside the refrigerator in hot and humid environments. One existing method for adjusting door height involves adding or removing shims to raise or lower the hinge shaft, thereby adjusting the door height. However, this method is difficult to operate and time-consuming. Utility Model Content

[0004] This application provides a refrigerator door adjustment device and a refrigerator, which can solve the technical problem of the difficulty in adjusting the height of the refrigerator.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A door adjustment device for a refrigerator, the refrigerator including a cabinet, a door hinge, and a door, the door hinge being fixedly connected to the cabinet, the door forming a mounting cavity with an opening and a pivot hole, the hinge shaft of the door hinge engaging with the pivot hole, the door adjustment device comprising:

[0007] An adjusting block is movably disposed in the mounting cavity and fixedly connected to the hinge shaft;

[0008] A transmission assembly, disposed in the mounting cavity, includes an input end and an output end, the output end being drively connected to the adjusting block;

[0009] The lever includes a drive wheel and a lever block. The drive wheel is rotatably connected to the mounting cavity and is drively connected to the input end. One end of the lever block is connected to the circumferential sidewall of the drive wheel, and the other end is used to extend outside the door through the opening.

[0010] The lever is adapted to be driven by an external force to rotate the transmission wheel, and the transmission wheel is adapted to drive the adjusting block to move through the transmission assembly, so as to drive the hinge shaft to move relative to the extension direction of the pivot hole.

[0011] In some embodiments, a first limiting rib is provided protruding on the inner wall of the mounting cavity, and a limiting through hole is formed on the first limiting rib. The transmission assembly includes:

[0012] The transmission rod is movably inserted into the limiting hole and is connected to the transmission wheel.

[0013] A transmission block is fixedly connected to one end of the transmission rod and is connected in a transmission manner to the adjusting block;

[0014] The transmission wheel is used to rotatably drive the transmission rod to move along its length, so that the transmission block drives the adjusting block to move.

[0015] In some embodiments, the transmission rod includes a lead screw section, and the transmission wheel includes a threaded portion that engages with the lead screw section to rotatably drive the transmission rod to move along its length.

[0016] In some embodiments, the transmission rod includes a rack segment, and the transmission wheel includes a gear portion that engages with the rack segment to rotatably drive the transmission rod to move along its length.

[0017] In some embodiments, the adjusting block includes a first inclined surface disposed toward the transmission block, the transmission block includes a second inclined surface adapted to the first inclined surface, and the transmission block is adapted to move the first inclined surface relative to the second inclined surface to cause the hinge shaft to move relative to the extension direction of the pivot hole.

[0018] In some embodiments, the adjusting block has a protruding rib, the transmission block has a groove, and the protruding rib is movably inserted into the groove; wherein, the first inclined surface is disposed on the outer wall of the protruding rib, and the second inclined surface is disposed on the inner wall of the groove; or

[0019] The adjusting block has a groove, and the transmission block has a protruding rib, which is movably inserted into the groove; wherein, the first inclined surface is provided on the inner wall of the groove, and the second inclined surface is provided on the outer wall of the rib.

[0020] In some embodiments, the rib conforms to the groove.

[0021] In some embodiments, the mounting cavity includes an inner mounting wall, the transmission block has a first through groove with its opening facing the inner mounting wall, the inner wall of the first through groove also has a fixing groove, the circumferential side wall of the transmission rod is provided with a locking block, the inner wall of the first through groove and the inner mounting wall form a through hole suitable for the transmission rod to pass through, and the locking block is confined in the fixing groove so that the transmission rod is fixedly connected to the transmission block.

[0022] In some embodiments, there are multiple toggle blocks, which are arranged sequentially in the circumferential direction of the transmission wheel, and at least one of the toggle blocks is used to extend outside the door body through the opening.

[0023] A refrigerator, comprising:

[0024] The enclosure includes a housing, a door hinge, and a door, wherein the door hinge is fixedly connected to the housing, the door forms a mounting cavity with an opening and a pivot hole, and the hinge axis of the door hinge mates with the pivot hole.

[0025] The aforementioned door adjustment device is installed in the mounting cavity.

[0026] The refrigerator door adjustment device and refrigerator provided in this application embodiment, by adding a lever, allow the operator to move the lever from the outside of the door to drive the transmission wheel to rotate, thereby causing the hinge shaft to move relative to the extension direction of the pivot hole, so that the refrigerator door moves up and down relative to the refrigerator body, realizing the adjustment of the refrigerator door height. Compared with existing door height adjustment methods, the door adjustment device of this application makes the operation of adjusting the door simple and convenient for the operator, and saves time and effort. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0029] Figure 1 This is a schematic diagram of the door adjustment device provided in an embodiment of this application.

[0030] Figure 2 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application.

[0031] Figure 3 for Figure 2 The diagram shown is an enlarged view of region A.

[0032] Figure 4 for Figure 2 The image shows a cross-sectional view of a portion of the refrigerator's structure.

[0033] Figure 5 for Figure 2 Another cross-sectional view of a portion of the refrigerator's structure is shown.

[0034] Figure 6 This is another structural schematic diagram of the door adjustment device provided in the embodiments of this application.

[0035] Figure 7 for Figure 1 The diagram shows a cross-sectional view of the door adjustment device.

[0036] Figure 8 for Figure 2 Another cross-sectional view of a portion of the refrigerator's structure is shown.

[0037] Figure 9 for Figure 1 The exploded view of the door adjustment device shown.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10. Refrigerator;

[0040] 100. Box body; 200. Door hinge; 300. Door body; 400. Door body adjustment device; 500. Reinforcing plate;

[0041] 210, Hinge shaft; 310, Opening; 320, Rotary shaft hole; 330, Mounting cavity; 340, Door shell; 350, End cap; 410, Adjusting block; 420, Transmission assembly; 430, Lever;

[0042] 331. Inner wall installation; 332. First limiting rib; 333. Second limiting rib; 411. First inclined surface; 412. Protruding rib; 421. Transmission rod; 422. Transmission block; 431. Transmission wheel; 432. Pulley block;

[0043] 4211, Lead screw section; 4212, Rack section; 4213, Locking block; 4311, Threaded part; 4312, Gear part; 4221, Second inclined surface; 4222, Groove; 4223, First through groove; 4224, Fixing groove. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can be fixed connections, integral connections, or detachable connections; they can be mechanical connections or electrical connections, or internal connections between two components; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0047] This application provides a refrigerator door adjustment device. For an example, please refer to [link to example]. Figures 1-5 , Figure 1 This is a schematic diagram of the door adjustment device provided in the embodiments of this application. Figure 2 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application. Figure 3 for Figure 2 The structural diagram shown is an enlarged view of region A. Figure 4 for Figure 2 The diagram shows a partial sectional view of the refrigerator's structure. Figure 5 for Figure 2 The refrigerator 10 is shown in another cross-sectional view of its partial structure. The refrigerator 10 includes a cabinet 100, a door hinge 200, a door, and a door adjustment device 400. The door hinge 200 is fixedly connected to the cabinet 100, and the door forms a mounting cavity 330 with an opening 310 and a pivot hole 320. The hinge shaft 210 of the door hinge 200 engages with the pivot hole 320. The door adjustment device 400 includes an adjustment block 410, a transmission assembly 420, and a lever 430.

[0048] The adjusting block 410 is movably mounted in the mounting cavity 330 and fixedly connected to the hinge shaft 210. The transmission assembly 420 is mounted in the mounting cavity 330 and includes an input end and an output end, with the output end being drive-connected to the adjusting block 410. The lever 430 includes a transmission wheel 431 and a lever 432. The transmission wheel 431 is rotatably connected in the mounting cavity 330 and drive-connected to the input end. One end of the lever 432 is connected to the circumferential sidewall of the transmission wheel 431, and the other end is extended outside the door through the opening 310. The lever 432 is adapted to be driven by an external force to rotate the transmission wheel 431. The transmission wheel 431 is adapted to rotatably drive the adjusting block 410 to move through the transmission assembly 420, thereby causing the hinge shaft 210 to move relative to the extension direction of the pivot hole 320.

[0049] For example, such as Figures 3-4 As shown, the door body includes a door shell 340 and an end cap 350. The end cap 350 is disposed at the end of the door shell 340 and forms a mounting cavity 330 with the door shell 340. An opening 310 and a pivot hole 320 are provided on the end cap 350, for example, and communicate with the internal space of the mounting cavity 330 and the outside of the door body. The door hinge 200 may be the central hinge of the refrigerator 10, including an integrally formed hinge plate (not shown) and a hinge shaft 210. The hinge plate is fixed to the cabinet 100, for example, by screws. The hinge shaft 210 passes through the pivot hole 320 to realize the rotatable connection between the door body of the refrigerator 10 and the cabinet 100. In some embodiments, a reinforcing plate 500 is also provided between the door hinge 200 and the door body. The reinforcing plate 500 is used to strengthen the strength of the mating point between the door body and the hinge shaft 210, thereby improving the quality of the refrigerator 10.

[0050] The drive wheel 431 is rotatably connected in the mounting cavity 330, meaning that the drive wheel 431 rotates about a fixed axis in the mounting cavity 330. For example, a rotating shaft mounting seat is provided on the inner wall of the mounting cavity 330, and the drive wheel 431 is rotatably connected to the rotating mounting seat via a shaft. The rotating shaft mounting seat may protrude from the inner wall of the end cover 350. Preferably, the drive wheel 431 is limited in its axial direction by the rotating shaft mounting seat, reducing the axial movement of the drive wheel 431 and improving the structural stability of the door adjustment device 400. Preferably, the opening 310 may be located on one side of the circumferential direction of the drive wheel 431 and opposite to the circumferential side wall of the drive wheel 431; the first end of the lever 432 is fixedly connected to the drive wheel 431, and the second end of the lever 432, opposite to the first end, extends to the outside of the door through the opening 310. This reduces the complexity of the lever 430 structure. The lever 432 and the drive wheel 431 may be integrally formed. The pusher block 432 and the mounting cavity 330 are spaced apart to form the inner wall of the opening 310.

[0051] In practical applications, when installers or users need to adjust the door height, they can hold the lever 432 and manually move it along the circumference of the transmission wheel 431. Twisting the lever 432 causes the transmission wheel 431 to rotate. When the transmission wheel 431 rotates, it drives the adjusting block 410 through the transmission assembly 420, causing the adjusting block 410 to move relative to the hinge shaft 210 along the extension direction of the pivot hole 320. Understandably, when the hinge shaft 210 moves relative to the pivot hole 320, the door moves up and down relative to the door hinge 200. Since the hinge is fixedly connected to the housing 100, the door also moves up and down relative to the housing 100. Thus, the door height is adjusted. When the installer or user moves the lever 432 in the first direction, the drive wheel 431 rotates clockwise, for example, causing the door to move upward relative to the housing 100; when the installer or user moves the lever 432 in the opposite second direction, the drive wheel 431 rotates counterclockwise, for example, causing the door to move downward relative to the housing 100.

[0052] The door adjustment device 400 of the refrigerator 10 provided in this application embodiment adds a lever 432, allowing the operator to move the lever 432 from outside the door to drive the transmission wheel 431 to rotate. This, in turn, causes the hinge shaft 210 to move relative to the extension direction of the pivot hole 320, thereby allowing the door of the refrigerator 10 to move up and down relative to the cabinet 100, thus adjusting the height of the refrigerator 10 door. Compared with existing door height adjustment methods, the door adjustment device 400 of this application makes the operation of adjusting the door simpler and more convenient for the operator, and saves time and effort.

[0053] Optionally, such as Figure 1 As shown, there are multiple levers 432, which are sequentially arranged circumferentially around the transmission wheel 431. At least one of the levers 432 extends outward through the opening 310. This ensures that, even in embodiments with a large rotational stroke of the transmission wheel 431, at least one lever 432 is available for operation, guaranteeing the usability of the door adjustment device 400. Preferably, the levers 432 are evenly distributed on the circumferential sidewalls of the transmission wheel 431.

[0054] In some embodiments, please refer to Figure 4 As shown, a first limiting rib 332 protrudes from the inner wall of the mounting cavity 330, and a limiting through hole is formed on the first limiting rib 332. The transmission assembly 420 includes a transmission rod 421 and a transmission block 422. The transmission rod 421 is movably inserted into the limiting through hole and is driven by the transmission wheel 431; the transmission block 422 is fixedly connected to one end of the transmission rod 421 and is driven by the adjusting block 410; the transmission wheel 431 is used to rotatably drive the transmission rod 421 to move along the length direction, so that the transmission block 422 drives the adjusting block 410 to move.

[0055] The transmission rod 421 is movably inserted into the limiting hole, indicating that the movement of the transmission rod 421 in its circumferential direction is restricted by the limiting hole. The transmission rod 421 can move along its length direction and can also rotate axially within the limiting hole. The first limiting rib 332 protrudes, for example, from the inner wall of the end cap 350. The transmission block 422 is fixedly connected to the transmission rod 421, so when the transmission rod 421 moves along its length direction, the adjusting block 410 also moves linearly along the length direction of the transmission rod 421.

[0056] Regarding the transmission method between the transmission rod 421 and the transmission wheel 431, this application provides the following embodiment. The transmission rod 421 includes a lead screw section 4211, and the transmission wheel 431 includes a threaded portion 4311 that mates with the lead screw section 4211, thereby rotatably driving the transmission rod 421 to move along its length. Preferably, the transmission wheel 431 has a threaded hole inside, and the lead screw section 4211 passes through the threaded hole and mates with the inner wall of the thread. This improves the stability of the transmission connection between the transmission rod 421 and the transmission wheel 431, ensures the usability of the door adjustment device 400, and enhances product quality. On the other hand, there is no need to provide a separate rotating shaft mounting base and shaft for the transmission wheel 431 to be rotatably connected in the mounting cavity 330; the transmission rod 421 can be directly used as the shaft of the transmission wheel 431.

[0057] Regarding the transmission method between the transmission rod 421 and the transmission wheel 431, this application also provides a parallel embodiment. Please refer to... Figure 6 , Figure 6 This is another schematic diagram of the door adjustment device provided in the embodiment of this application. The transmission rod 421 includes a rack segment 4212, and the transmission wheel 431 includes a gear portion 4312 that meshes with the rack segment 4212 to rotatably drive the transmission rod 421 to move along its length.

[0058] Regarding the transmission method between the transmission block 422 and the adjusting block 410, this application provides the following embodiment. Please refer to... Figure 7 , Figure 7 for Figure 1The diagram shows a cross-sectional view of the door adjustment device. The adjustment block 410 includes a first inclined surface 411 facing the transmission block 422. The transmission block 422 includes a second inclined surface 4221 adapted to the first inclined surface 411. The transmission block 422 is adapted to drive the first inclined surface 411 to slide relative to the second inclined surface 4221, so that the hinge shaft 210 moves relative to the extension direction of the pivot hole 320. It should be noted that, based on the transmission method between the transmission block 422 and the adjustment block 410, the direction of movement of the transmission block 422 is different from the direction of movement of the adjustment block 410. That is, the length direction of the transmission rod 421 is different from the extension direction of the hinge shaft 210. Optionally, the length direction of the transmission rod 421 is the same as the horizontal direction of the refrigerator 10. Preferably, the transmission rod 421 extends along the width direction of the door. For example, the transmission rod 421 is horizontally mounted on the end cover 350, and its extension direction is the same as the length direction of the end cover 350.

[0059] In some embodiments, the adjusting block 410 has a protruding rib 412, and the transmission block 422 has a groove 4222, with the protruding rib 412 movably inserted into the groove 4222; wherein, a first inclined surface 411 is provided on the outer wall of the protruding rib 412, and a second inclined surface 4221 is provided on the inner wall of the groove 4222; or the adjusting block 410 has a groove 4222, and the transmission block 422 has a protruding rib 412, with the protruding rib 412 movably inserted into the groove 4222; wherein, the first inclined surface 411 is provided on the inner wall of the groove 4222, and the second inclined surface 4221 is provided on the outer wall of the protruding rib 412. Thus, the movable insertion of the protruding rib 412 into the groove 4222 improves the stability of the transmission connection between the transmission block 422 and the adjusting block 410, ensuring the usability of the door adjusting device 400 and improving product quality. Preferably, the protruding rib 412 and the groove 4222 are conformally matched.

[0060] Regarding how to efficiently and securely connect the transmission rod 421 and the transmission block 422 using a structure, this application provides the following embodiment. Please refer to... Figures 8-9 , Figure 8 for Figure 2 Another partial cross-sectional view of the refrigerator shown. Figure 9 for Figure 1The exploded view of the door adjustment device is shown. The mounting cavity 330 includes an inner mounting wall 331. A transmission block 422 has a first through groove 4223 with its opening facing the inner mounting wall 331. A fixing groove 4224 is also formed on the inner wall of the first through groove 4223. A locking block 4213 is provided on the circumferential side wall of the transmission rod 421. The inner wall of the first through groove 4223 and the inner mounting wall 331 form a through hole suitable for the transmission rod 421 to pass through. The locking block 4213 is confined in the fixing groove 4224, so that the transmission rod 421 is fixedly connected to the transmission block 422. In actual installation, the end of the transmission rod 421 can be first assembled into the first through groove 4223 of the transmission block 422 through the opening of the first through groove 4223, and the locking block 4213 can be confined in the fixing groove 4224. Then, the transmission block 422 is installed on the inner mounting wall 331 to block the opening of the first through groove 4223. In this way, the end of the transmission rod 421 can no longer exit the first through groove 4223 through the opening of the first through groove 4223, but is limited in the through hole and the fixing groove 4224, thus realizing the fixed connection between the transmission rod 421 and the transmission block 422.

[0061] Optionally, a second limiting rib 333 is also provided on the inner wall 331. The second limiting rib 333 and the inner wall 331 form a guide groove. The guide groove is used to guide the movement of the transmission block 422, so as to improve the stability of the movement of the transmission block 422 and improve the overall structural strength and stability of the device.

[0062] The door adjustment device 400 of the refrigerator 10 provided in this application embodiment adds a lever 432, allowing the operator to move the lever 432 from outside the door to drive the transmission wheel 431 to rotate. This, in turn, causes the hinge shaft 210 to move relative to the extension direction of the pivot hole 320, thereby allowing the door of the refrigerator 10 to move up and down relative to the cabinet 100, thus adjusting the height of the refrigerator 10 door. Compared with existing door height adjustment methods, the door adjustment device 400 of this application makes the operation of adjusting the door simpler and more convenient for the operator, and saves time and effort.

[0063] This application embodiment also provides a refrigerator 10, which can be as follows: Figure 2 The illustrated French door refrigerator 10 can also be a French door refrigerator 10, a side-by-side refrigerator 10, or other types of refrigerator 10. The refrigerator 10 includes a cabinet 100, a door hinge 200, a door, and a door adjustment device 400 as described in any of the above embodiments. The door hinge 200 is fixedly connected to the cabinet 100, and the door forms a mounting cavity 330 with an opening 310 and a pivot hole 320. The hinge shaft 210 of the door hinge 200 engages with the pivot hole 320; the door adjustment device 400 is installed in the mounting cavity 330.

[0064] The refrigerator 10 provided in this application embodiment has a door adjustment device 400 with an added lever 432, which allows the operator to move the lever 432 from the outside of the door to drive the transmission wheel 431 to rotate, thereby driving the hinge shaft 210 to move relative to the extension direction of the pivot hole 320, so that the door of the refrigerator 10 moves up and down relative to the cabinet 100, thereby realizing the adjustment of the height of the refrigerator 10 door. The operation is simple, convenient and time-saving.

[0065] The refrigerator door adjustment device and refrigerator provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A door adjustment device for a refrigerator, characterized in that, The refrigerator includes a cabinet, a door hinge, and a door. The door hinge is fixedly connected to the cabinet. The door forms a mounting cavity with an opening and a pivot hole. The hinge pin of the door hinge mates with the pivot hole. The door adjustment device includes: An adjusting block is movably disposed in the mounting cavity and fixedly connected to the hinge shaft; A transmission assembly, disposed in the mounting cavity, includes an input end and an output end, the output end being drively connected to the adjusting block; The lever includes a drive wheel and a lever block. The drive wheel is rotatably connected to the mounting cavity and is drively connected to the input end. One end of the lever block is connected to the circumferential sidewall of the drive wheel, and the other end is used to extend outside the door through the opening. The lever is adapted to be driven by an external force to rotate the transmission wheel, and the transmission wheel is adapted to drive the adjusting block to move through the transmission assembly, so as to drive the hinge shaft to move relative to the extension direction of the pivot hole.

2. The door adjustment device according to claim 1, characterized in that, The inner wall of the mounting cavity is provided with a first limiting rib, and the first limiting rib has a limiting through hole. The transmission assembly includes: The transmission rod is movably inserted into the limiting hole and is connected to the transmission wheel. A transmission block is fixedly connected to one end of the transmission rod and is connected in a transmission manner to the adjusting block; The transmission wheel is used to rotatably drive the transmission rod to move along its length, so that the transmission block drives the adjusting block to move.

3. The door adjustment device according to claim 2, characterized in that, The transmission rod includes a lead screw section, and the transmission wheel includes a threaded portion that mates with the lead screw section to rotatably drive the transmission rod to move along its length.

4. The door adjustment device according to claim 2, characterized in that, The transmission rod includes a rack segment, and the transmission wheel includes a gear portion that meshes with the rack segment to rotatably drive the transmission rod to move along its length.

5. The door adjustment device according to claim 2, characterized in that, The adjusting block includes a first inclined surface facing the transmission block, and the transmission block includes a second inclined surface adapted to the first inclined surface. The transmission block is adapted to drive the first inclined surface to slide relative to the second inclined surface so that the hinge shaft moves relative to the extension direction of the pivot hole.

6. The door adjustment device according to claim 5, characterized in that, The adjusting block has a protruding rib, and the transmission block has a groove, with the protruding rib movably inserted into the groove; wherein, the first inclined surface is provided on the outer wall of the protruding rib, and the second inclined surface is provided on the inner wall of the groove; or The adjusting block has a groove, and the transmission block has a protruding rib, which is movably inserted into the groove; wherein, the first inclined surface is provided on the inner wall of the groove, and the second inclined surface is provided on the outer wall of the rib.

7. The door adjustment device according to claim 6, characterized in that, The raised rib is conformally matched to the groove.

8. The door adjustment device according to any one of claims 2-7, characterized in that, The mounting cavity includes an inner mounting wall. The transmission block has a first through groove with its opening facing the inner mounting wall. A fixing groove is also provided on the inner wall of the first through groove. A locking block is provided on the circumferential side wall of the transmission rod. The inner wall of the first through groove and the inner mounting wall form a through hole suitable for the transmission rod to pass through. The locking block is located in the fixing groove so that the transmission rod is fixedly connected to the transmission block.

9. The door adjustment device according to any one of claims 1-7, characterized in that, There are multiple toggle blocks, which are arranged sequentially in the circumferential direction of the transmission wheel. At least one of the toggle blocks is used to extend out of the door body through the opening.

10. A refrigerator, characterized in that, include: The enclosure includes a housing, a door hinge, and a door, wherein the door hinge is fixedly connected to the housing, the door forms a mounting cavity with an opening and a pivot hole, and the hinge axis of the door hinge mates with the pivot hole. The door adjustment device as described in any one of claims 1-9, wherein the door adjustment device is installed in the mounting cavity.

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