Refrigerator door body

Abstract

The application discloses a refrigerator door body, which comprises an inner door and an outer door detachably connected to the inner door, and further comprises a positioning structure and a locking structure. The positioning structure comprises a hook and a positioning piece, one of which is arranged on the inner door and the other is arranged on the outer door. The positioning piece has a clamping groove for clamping the hook. The locking structure comprises a lock and a clamping block. The lock is rotatably arranged on one of the inner door and the outer door through a rotating shaft, and the clamping block is fixed on the other of the inner door and the outer door. The lock has a locking state for clamping the clamping block and an unlocking state for separating from the clamping block. The rotating shaft is perpendicular to the inner door or the outer door. In the application, the positioning structure and the locking structure realize the connection between the outer door and the inner door, so that the outer door is reliably fixed on the inner door, and the locking and unlocking of the clamping block can be realized by rotating the lock. The fixing and dismounting of the inner door and the outer door are simple and easy to operate, and the user can quickly replace the outer door.

Description

Technical Field

[0001] This invention relates to the technical field of household appliances, and in particular to a refrigerator door. Background Technology

[0002] Refrigerators are indispensable household appliances. With increasing user demands, refrigerators have evolved beyond their function as appliances to serve as decorative elements in the home environment. Before purchasing a refrigerator, users often have specific requirements regarding its color and pattern, and a single, conventional appearance can significantly influence their purchasing decisions. Furthermore, since refrigerators typically have a lifespan of 8 to 10 years, changes in environment and usage scenarios mean that the refrigerator's appearance may no longer meet users' long-term needs for customization. Additionally, refrigerator doors are usually made of glass, which can crack or be damaged during use. Replacing exterior doors is currently quite complex, making it difficult for users to do it themselves. Summary of the Invention

[0003] The purpose of this invention is to provide a refrigerator door to overcome the shortcomings of related technologies, allowing for convenient and quick replacement of the refrigerator's outer door panel, and facilitating user self-replacement.

[0004] To achieve one of the above objectives, the present invention provides a refrigerator door, comprising an inner door and an outer door detachably connected to the inner door, the refrigerator door further comprising:

[0005] The positioning structure includes a hook and a positioning element, one of which is disposed on the inner door and the other on the outer door. The positioning element has a slot for engaging with the hook to limit the displacement of the outer door in the front-rear direction of the refrigerator door.

[0006] A locking structure includes a locking latch and a locking block. The locking latch is rotatably mounted on one of the inner door and the outer door via a rotating shaft. The locking block is fixed on the other of the inner door and the outer door. The locking latch has a locked state where it engages with the locking block and an unlocked state where it is separated from the locking block. The rotating shaft is perpendicular to the inner door or the outer door.

[0007] In one embodiment of this application, the card block is provided with at least a first tooth groove, and the card lock is provided with at least a first tooth, the first tooth being used to engage with the first tooth groove;

[0008] And / or, the card block is provided with a second tooth groove, and the card lock is provided with a second tooth, the second tooth being used to engage with the second tooth groove.

[0009] In one embodiment of this application, the first locking tooth and the second locking tooth extend in a direction away from the locking mechanism, and the extension length of the second locking tooth is greater than the extension length of the first locking tooth.

[0010] In one embodiment of this application, the locking structure further includes a connecting box fixed to the inner door, the rotating shaft is connected to the connecting box, and the rotating shaft is provided with an elastic rotating member for rotating the latch from the unlocked state to the locked state.

[0011] In one embodiment of this application, the lock has an unlocking arm, and a magnet is provided on the unlocking arm;

[0012] And / or, the lock has an extension arm, and the inner door is provided with an unlocking hole, which is disposed opposite to the extension arm.

[0013] In one embodiment of this application, the connecting box is provided with an installation groove, the installation groove having a first groove wall and a second groove wall; the unlocking arm and the extension arm are not coplanar on the side facing the first groove wall; when the lock is in the locked state, one side of the locking block is in contact with the second groove wall, and the extension arm is in contact with the first groove wall; when the lock is in the unlocked state, the unlocking arm is in contact with the first groove wall.

[0014] In one embodiment of this application, the hook is fixed to the outer door, the hook includes an inclined portion that gradually tilts from top to bottom toward the side away from the outer door, and the slot has an inclined groove wall for engaging with the inclined portion.

[0015] In one embodiment of this application, the positioning member is fixed to the inner door, and the positioning member also has an opening communicating with the slot, the opening being open towards the front side of the refrigerator door.

[0016] In one embodiment of this application, several positioning structures are arranged in a vertical direction, and the locking structure is located on the side of the refrigerator door.

[0017] In one embodiment of this application, the refrigerator door further includes an upper trim strip fixed to the inner door, the outer edge of the upper trim strip protruding from the front side of the inner door, and in the locked state, at least a portion of the upper trim strip engages with the top of the outer door.

[0018] In one embodiment of this application, the inner door is provided with a push block that moves along the front-rear direction of the refrigerator door body, and the push block is disposed opposite to the upper side of the outer door.

[0019] In one embodiment of this application, the inner door includes an inner lining and an upper trim strip, a lower frame strip, and two side frame strips connected to the inner lining, wherein the positioning member and the locking device are connected within the side frame strips.

[0020] In one embodiment of this application, in the locked state, at least a portion of the lower frame strip is located below the outer door; the lower frame strip is provided with an avoidance groove, the avoidance groove is provided through the vertical direction of the refrigerator door, and the outer door covers the avoidance groove.

[0021] Compared with related technologies, the positioning structure in this invention positions the outer door and the locking structure locks it in place. The connection between the outer and inner doors is achieved through these two structures, reliably fixing the outer door to the inner door. Furthermore, the locking and unlocking mechanism engages with the locking block simply by rotating the latch. The method of fixing and disassembling the inner and outer doors is simple and easy to operate, allowing users to quickly replace the outer door. Attached Figure Description

[0022] Figure 1 This is an isometric view of a refrigerator door provided by the present invention;

[0023] Figure 2 This is a front view of a refrigerator door provided by the present invention;

[0024] Figure 3 yes Figure 2 A sectional view along line A-A;

[0025] Figure 4 yes Figure 3 Enlarged structural diagram of section B;

[0026] Figure 5 This is a partial structural diagram of the inner door of a refrigerator door provided by the present invention;

[0027] Figure 6 yes Figure 5 Enlarged structural diagram of section C;

[0028] Figure 7 yes Figure 5 Enlarged structural diagram of section D;

[0029] Figure 8 This is a schematic diagram of the structure of the outer door of a refrigerator door provided by the present invention;

[0030] Figure 9 yes Figure 8 Enlarged structural diagram of section E in the middle;

[0031] Figure 10 This is a partial structural diagram of a locking structure in a refrigerator door provided by the present invention;

[0032] Figure 11 This is a schematic diagram of a refrigerator door in a locked state with a latch and a locking block, provided by the present invention;

[0033] Figure 12 This is a schematic diagram of the unlocked state of the latch and the latch block in a refrigerator door provided by the present invention.

[0034] Figure label:

[0035] 100. Door body; 10. Inner door; 11. Unlocking hole; 12. Upper frame strip; 121. Upper trim strip; 13. Push block; 14. Lower frame strip; 141. Clearance groove; 142. Base; 143. Protrusion; 15. Side frame strip; 20. Outer door; 30. Positioning structure; 31. Hook; 311. Horizontal part; 312. Inclined part; 32. Positioning component; 321. Slot; 322. Opening; 323. Inclined groove wall; 40. Locking structure; 4 1. Lock; 411. First locking tooth; 412. Second locking tooth; 413. Guide groove; 414. Unlocking arm; 415. Magnet; 416. Extension arm; 42. Locking block; 421. First tooth groove; 422. Second tooth groove; 43. Connecting box; 431. Mounting groove; 432. First groove wall; 433. Second groove wall; 44. Rotating shaft; 45. Elastic rotating component; 46. First limiting component; 47. Second limiting component; 200. Unlocking magnet. Detailed Implementation

[0036] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The terms used in this embodiment, such as "upper," "above," "lower," and "below," which indicate spatial relative position, are used for ease of explanation to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms "spatial relative position" may be intended to include different orientations of the device besides those shown in the figures during use or operation. For example, in this embodiment, "upper," "lower," "left," "right," "horizontal," and "vertical" all refer to the spatial relative position of the refrigerator door in its normal operating state.

[0038] The terms "first," "second," "third," "fourth," etc., used in this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Furthermore, it should be noted that, unless otherwise explicitly stated and limited, the term "connection" should be interpreted broadly. For example, a connection can be a direct connection or an indirect connection through an intermediate medium; it can be a fixed connection, a movable connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] To facilitate understanding of the technical solutions in this invention by those skilled in the art, with the direction facing the refrigerator door as a reference, the refrigerator door is defined to have an up-down direction (or vertical direction), a front-back direction, and a left-right direction, with the up-down direction, front-back direction, and left-right direction being mutually perpendicular.

[0040] The following will refer to the appendix in the embodiments of the present invention. Figure 1 -12, The technical solutions in the embodiments of the present invention are clearly and completely described.

[0041] An embodiment of the present invention provides a refrigerator door 100, including an inner door 10 and an outer door 20 detachably connected to the inner door 10. The inner door 10 may be the main body of the refrigerator door 100, and typically includes an inner lining and a frame strip, with foamed insulation material disposed between the inner lining and the frame strip. The outer door 20 may be a decorative panel on the front side of the refrigerator door 100, and may be a metal panel, glass panel, or ceramic panel, etc. Users can replace the outer door 20 according to the usage scenario of the refrigerator.

[0042] The refrigerator door 100 also includes a positioning structure 30 and a locking structure 40 disposed between the inner door 10 and the outer door 20. The positioning structure 30 and the locking structure 40 can fix the outer door 20 to the inner door 10, and the locking structure 40 can be easily removed when it is unlocked, making it convenient for users to replace the outer door 20.

[0043] The positioning structure 30 includes a hook 31 and a positioning element 32. One of the hook 31 and the positioning element 32 is disposed on the inner door 10, and the other is disposed on the outer door 20. The positioning element 32 has a groove 321, which is used to cooperate with the hook 31 to limit the displacement of the outer door 20 in the front-rear direction of the refrigerator door body 100. Through the positioning cooperation of the hook 31 and the groove 321, the outer door 20 is more reliably connected to the inner door 10. The hook 31 and the groove 321 can limit the displacement of the outer door 20 in the front-rear direction.

[0044] In some embodiments, the hook 31 is fixed to the outer door 20, and the positioning member 32 is fixed to the inner door 10.

[0045] In some embodiments, the hook 31 can be fixed to the inner door 10, and the positioning member 32 can be fixed to the outer door 20.

[0046] The positioning element 32 is configured as a pre-embedded box in the inner door 10. The positioning element 32 also has an opening 322 communicating with the slot 321. The opening 322 is located above the slot 321 and faces the front of the refrigerator door 100. The slot 321 extends downwards along the vertical direction of the refrigerator door 100. When the outer door 20 is installed on the inner door 10, the hook 31 extends from the opening 322 into the slot 321 and engages with it. Therefore, the slot 321 can limit the displacement of the hook 31 in the front-back direction, preventing the outer door 20 from detaching from the inner door 10 in the front-back direction.

[0047] The locking structure 40 includes a latch 41 and a latch 42. The latch 41 is rotatably mounted on one of the inner door 10 and the outer door 20, and the latch 42 is fixed on the other of the inner door 10 and the outer door 20. The latch 41 has a locked state when engaged with the latch 42 and an unlocked state when disengaged from the latch 42.

[0048] The locking mechanism 41 is rotatably mounted on the inner door 10 or the outer door 20 via a rotating shaft 44. The rotating shaft 44 is perpendicular to the inner door 10 or the outer door 20, so that the rotation plane of the locking mechanism 41 is parallel to the inner door 10 or the outer door 20. During the rotation of the locking mechanism 41 within the range parallel to the inner door 10 or the outer door 20, it can lock the outer door 20 from the left and right directions.

[0049] In this invention, the connection between the outer door 20 and the inner door 10 is achieved through the positioning structure 30 and the locking structure 40, so that the outer door 20 is reliably fixed to the inner door 10, and the locking and unlocking of the locking block 42 can be achieved by rotating the locking lock 41. The fixing and disassembly of the inner door 10 and the outer door 20 are simple and easy to operate, making it convenient for users to quickly replace the outer door 20.

[0050] In some embodiments, the latch 41 is rotatably connected to the inner door 10, and the latch block 42 is fixedly connected to the outer door 20. When disassembling the outer door 20, it is not necessary to replace the relatively complex latch 41 structure, and the latch 41 can be reused, saving production costs. Furthermore, the outer door 20 has a relatively simple structure, which is convenient for production.

[0051] In some embodiments, the latch 41 can also be rotatably connected to the outer door 20, and the latch block can be fixedly connected to the inner door 10. Of course, the latch 41 can also be detachably installed on the outer door 20.

[0052] As long as the locking structure 40 between the inner door 10 and the outer door 20 can achieve locking and unlocking, this embodiment does not specify the location of the locking structure 40.

[0053] The locking block 42 is provided with at least a first tooth groove 421, and the locking lock 41 is provided with at least a first tooth 411. The first tooth 411 is used to engage with the first tooth groove 421. Through the cooperation of the first tooth groove 421 and the first tooth 411, the locking block 42 and the locking lock 41 can be engaged and locked.

[0054] In some embodiments, the locking block 42 is provided with a first tooth groove 421 and a second tooth groove 422, and the locking lock 41 is provided with a first locking tooth 411 and a second locking tooth 412. The first locking tooth 411 is used to engage with the first tooth groove 421, and the second locking tooth 412 is used to engage with the second tooth groove 422. When the locking block 42 and the locking lock 41 are engaged, the cooperation of the two sets of locking teeth and grooves ensures reliable locking of the locking block 42 and the locking lock 41, and can prevent the locking block 42 from moving around in the refrigerator door 100 in the left-right direction.

[0055] The first groove 421 and the second groove 422 are arranged at intervals along the vertical direction of the locking block 42 (i.e., the vertical direction of the refrigerator door 100), and the inward recess depth of the first groove 421 is less than the inward recess depth of the second groove 422. Correspondingly, the first locking tooth 411 and the second locking tooth 412 are arranged at intervals from the side closer to the rotating shaft 44 to the side farther away from the rotating shaft 44. When the locking lock 41 and the locking block 42 are engaged, the first locking tooth 411 and the second locking tooth 412 are arranged at intervals along the vertical direction of the locking lock 41.

[0056] The first locking tooth 411 and the second locking tooth 412 extend in a direction away from the locking lock 41. The length L2 of the first locking tooth 411 is smaller than the length L1 of the second locking tooth 412. The smaller first locking tooth 411 and the larger second locking tooth 412 have different engagement depths with the locking block 42. Furthermore, in the rotation path of the locking lock 41, the larger second locking tooth 412 engages more tightly with the locking block 42, making the engagement between the locking lock 41 and the locking block 42 more reliable. Under the action of the locking lock 41, the locking block 42 is restricted to move in the vertical and horizontal directions.

[0057] The locking structure 40 also includes a connecting box 43 fixed to the inner door 10. The connecting box 43 can be a rectangular box pre-embedded in the inner door 10. The connecting box 43 is provided with a mounting groove 431, and the latch 41 is connected to the mounting groove 431. The rotating shaft 44 can be fixed to the connecting box 43, and the latch 41 is rotatably connected to the rotating shaft 44, realizing the rotatable connection between the latch 41 and the connecting box 43. The latch 41 can rotate around the rotating shaft 44 in the mounting groove 431.

[0058] A flexible rotating element 45 is provided on the rotating shaft 44. The flexible rotating element 45 is used to rotate the lock 41 from the unlocked state to the locked state. When the lock 41 is not under force, the rotating shaft 44 can always be in the locked state under the action of the flexible rotating element 45, ensuring the reliable locking of the lock 41 and the block 42.

[0059] In some embodiments, the elastic rotating element 45 may be, for example, a torsion spring. A first limiting element 46 is fixedly connected to the rotating shaft 44, and the torsion spring is sleeved on the first limiting element 46. A second limiting element 47 is connected to the locking latch 41. One end of the torsion spring engages with the first limiting element 46, and the other end engages with the second limiting element 47.

[0060] When the lock 41 and the block 42 are locked, the torsion spring is in the first torsion state; when the lock 41 and the block 42 are unlocked, the torsion spring is in the second torsion state.

[0061] When the locking mechanism 41 is under force and the torsion spring is in a torsional state, the locking mechanism 41 rotates counterclockwise under the action of the torsion spring. When the locking mechanism 41 rotates to the locked position, the locking block 42 can engage with the locking mechanism 41, and the vertical displacement of the locking block 42 is restricted. At this time, the locking mechanism 41 cannot continue to rotate counterclockwise under the limiting action of the locking block 42, while the torsion spring always exerts a counterclockwise torsional force on the locking mechanism 41, so the locking mechanism 41 can be tightly engaged with the locking block 42.

[0062] A clockwise rotational driving force is applied to the latch 41, causing it to rotate from the locked state to the unlocked state. The torsion spring also rotates from the first torsion state to the second torsion state. The latch 41 disengages from the locking block 42, allowing the block 42 to exit the connecting box 43, facilitating the replacement of the outer door 20. The torque of the torsion spring in the second torsion state is greater than that in the first torsion state. When the driving force applied to the latch 41 is removed, the latch 41 rotates from the unlocked state to the locked state under the torsional force of the torsion spring.

[0063] In some embodiments, the elastic rotating element 45 may also be other structures that provide elastic rotational force, such as rubber torsion elements or shape memory alloys.

[0064] Any structure or scheme that can provide torsional force to the locking mechanism 41, enabling the locking mechanism 41 to rotate to a position engaging with the locking block 42 when not under stress, is within the scope of protection of this invention. This embodiment does not impose specific limitations. The locking mechanism 41 is provided with a guide groove 413, which is recessed inward from the surface of the locking mechanism 41. In the natural state, the guide groove 413 is located on the upper side of the locking mechanism 41 and is positioned on the upper side of the rotating shaft 44.

[0065] The locking block 42 enters the mounting groove 431. Under the gravity of the outer door 20, the locking block 42 moves downward. The guide groove 413 makes way for the locking block 42. The locking block 42 acts on the groove wall of the guide groove 413, causing the locking lock 41 to rotate clockwise to avoid the locking block 42. The locking block 42 continues to move downward. When the locking block 42 moves to one side of the locking lock 41, the locking lock 41 rotates counterclockwise under the action of the elastic rotating member 45. The first locking tooth 411 on the locking lock 41 engages with the first tooth groove 421, and the second locking tooth 412 engages with the second tooth groove 422.

[0066] The lock 41 has an unlocking arm 414, which is located on the same side as the first locking tooth 411 and the second locking tooth 412, both at the rotation center of the lock 41. A magnet 415 is provided on the unlocking arm 414, and a groove is provided on the side of the unlocking arm 414 away from the locking block 42, in which the magnet 415 is embedded and fixed.

[0067] In some embodiments, in the natural state, locked state, and unlocked state of the latch 41, the unlocking arm 414 and the first latch 411 and the second latch 412 are all located below the rotation center of the latch 41, that is, below the rotating shaft 44. An unlocking magnet 200 can be externally mounted on the inner door 10. When it is necessary to remove the outer door 20, the magnetic poles of the unlocking magnet 200 and the magnet 415 are reversed. The unlocking magnet 200 attracts the magnet 415 on the unlocking arm 414. Under the magnetic attraction, the latch 41 rotates clockwise, so that the latch 41 rotates from the locked state to the unlocked state, and the latch 41 is released from the limiting position of the latch block 42.

[0068] In some embodiments, in the natural state, locked state, and unlocked state of the latch 41, the unlocking arm 414 can be located above the rotation center of the latch 41, that is, the unlocking arm 414, the first locking tooth 411, and the second locking tooth 412 are located on opposite sides of the rotating shaft 44. An unlocking magnet 200 can be externally mounted on the inner door 10. When the outer door 20 needs to be disassembled, the magnetic poles of the unlocking magnet 200 and the magnet 415 are made to be the same. The unlocking magnet 200 repels the magnet 415 on the unlocking arm 414, and the latch 41 rotates clockwise, so that the latch 41 rotates from the locked state to the unlocked state, and the latch 41 is released from the limiting position of the locking block 42.

[0069] To ensure the smooth unlocking of the lock 41 and the block 42, the lock 41 also has an extension arm 416, and the inner door 10 is provided with an unlocking hole 11, which is positioned opposite to the extension arm 416.

[0070] The unlocking hole 11 is a through hole. Users can insert other thin tools, such as steel wire, into the unlocking hole 11 and use the external tool to act on the extension arm 416 to make the lock 41 rotate under force. The lock 41 can also rotate from the locked state to the unlocked state, so that the lock 41 is released from the limit of the block 42.

[0071] In some embodiments, the extension arm 416 and the unlocking arm 414 are located on opposite sides of the rotation center of the lock 41, that is, in the natural state, locked state, and unlocked state of the lock 41, the extension arm 416 is located above the rotation center of the lock 41. The user can use an external tool to rotate the extension arm 416 clockwise.

[0072] In some embodiments, the extension arm 416 may be located below the rotation center of the lock 41, so that the user can use an external tool to pull the extension arm 416 to make the lock 41 rotate clockwise.

[0073] With this configuration, even if the card lock 41 cannot be rotated to the unlocked state due to insufficient magnetic attraction, the card lock 41 can be reliably unlocked using external tools, ensuring that the outer door 20 can be smoothly disassembled from the inner door 10.

[0074] The mounting groove 431 includes a first groove wall 432 and a second groove wall 433, which are arranged opposite to each other and extend in the vertical direction.

[0075] The extension arm 416 and the unlocking arm 414 are not coplanar on the side facing the first groove wall 433. When the lock 41 is in the locked state, the extension arm 416 is close to the first groove wall 432, the unlocking arm 414 is away from the first groove wall 432, and the side of the locking block 42 away from the lock 41 is attached to the second groove wall 433. A small gap may also be left between the locking block 42 and the second groove wall 433.

[0076] When the lock 41 is in the unlocked state, the unlocking arm 414 is close to the first groove wall 432, and the extension arm 416 is away from the first groove wall 432. The side wall of the mounting groove 431 limits the rotation angle of the lock 41, making the locking and unlocking of the lock 41 and the block 42 more precise and reliable.

[0077] More specifically, the hook 31 is fixed to the outer door 20, and a mounting plate is fixedly connected to the outer door 20. The hook 31 is fixed to the mounting plate. The hook 31 includes a horizontal part 311 fixedly connected to the mounting plate and an inclined part 312 integrally connected to the horizontal part 311. The horizontal part 311 is perpendicular to the outer door 20, and the inclined part 312 gradually slopes from top to bottom in a direction away from the outer door 20. Thus, a trapezoidal engagement gap is formed between the hook 31 and the mounting plate.

[0078] The positioning element 32 is fixed to the inner door 10. The slot 321 has an inclined groove wall 323, which gradually slopes from bottom to top away from the inner door 10. The inclined groove wall 323 and the inclined part 312 in the hook 31 fit together to form a mating surface. When the outer door 20 moves downward, the fit of the inclined surface can make the hook 31 and the positioning element 32 fit more tightly, and the outer door 20 is more firmly fixed.

[0079] The inclination angle of the mating surfaces ranges from 0° to 15°. The inclination angle cannot be too large or too small. An excessively large inclination angle will make it difficult to assemble the outer door 20, while an excessively small inclination angle may cause the outer door 20 and inner door 10 to move back and forth at the engagement position. In this embodiment, the inclination angle of the inclined portion 312 and the inclined groove wall 323 is 15°. In an optional embodiment, the inclination angle of the inclined portion 312 and the inclined groove wall 323 can also be 10°.

[0080] In some embodiments, the hook 31 and the slot 321 may also adopt other shapes, such as a U-shaped bend or an arc shape. Any structure that can limit the displacement of the outer door 20 in the front-rear direction of the refrigerator door body 100 is within the protection scope of this embodiment.

[0081] The inner door 10 includes an inner lining and an upper frame strip 12, a lower frame strip 14, and two side frame strips 15 connected to the inner lining. The upper frame strip 12, the lower frame strip 14, and the two side frame strips 15 enclose a rectangular frame structure. The inner door 10 also includes a limiting plate, the shape and size of which match the shape and size of the rectangular frame structure. The limiting plate is disposed opposite to the inner lining, and its four sides are respectively connected to the upper frame strip 12, the lower frame strip 14, and the two side frame strips 15. Thus, the inner lining, the limiting plate, the upper frame strip 12, the lower frame strip 14, and the two side frame strips 15 enclose a space for foaming.

[0082] The positioning structure 30 and the locking structure 40 can be set on the two side frame strips 15, for example, embedded inside the side frame strips 15. The limiting plate has a pre-set clearance groove that matches the positioning structure 30 and the locking structure 40, so that the inner door 10 and the outer door 20 can be smoothly connected and fixed.

[0083] The positioning structure 30 is provided in several sets. As an example, in this embodiment, the positioning structure 30 is provided in four sets, with two sets of the positioning structure 30 arranged vertically at intervals on each of the two side frame strips 15. The locking structure 40 is provided in one set. In an optional embodiment, the locking structure 40 may also be provided in two or more sets.

[0084] The four sets of positioning structures 30 can play a preliminary role in fixing and limiting the outer door 20, and then a set of locking structures 40 is used to lock the outer door 20, so that the outer door 20 can be more reliably assembled onto the inner door 10.

[0085] It should be noted that, in order to facilitate the operation of the locking 41 to rotate and unlock, the locking 41 is located near the edge of the side frame 15, and one side of the mounting groove 431 is open to the side frame 15, that is, the side wall of the side frame 15 is the structure of the first groove wall 432 mentioned above.

[0086] The upper frame strip 12 includes an upper trim strip 121, the outer edge of which protrudes from the front side of the inner door 10, i.e., the outer side of the upper trim strip 121 protrudes from the limiting plate. In the locked state, i.e., after the outer door 20 is installed on the inner door 10, the upper trim strip 121 cooperates with the top of the outer door 20 to limit the upper and lower direction of the outer door 20.

[0087] A push block 13 is movably mounted on the inner door 10 along the front-rear direction of the refrigerator door body 100, and the push block 13 is positioned opposite the upper side of the outer door 20. The upper frame strip 12 can form a recessed handle, and the push block 13 is located inside the handle for easy user operation.

[0088] When it is necessary to disassemble the outer door 20, push the push block 13 in the direction of the outer door 20, so that the push block 13 acts on the outer door 20, and the upper side of the outer door 20 moves away from the inner door 10. The outer door 20 undergoes a certain deformation, so that the upper end of the outer door 20 is freed from the restriction of the upper trim strip 121, making it easier for the user to disassemble the outer door 20 upwards.

[0089] The push block 13 can be made of rubber or silicone with elastic deformation capability to avoid damaging the outer door 20 when disassembling it.

[0090] In the locked state, at least part of the lower frame strip 14 is located on the lower side of the outer door 20. The lower frame strip 14 is provided with a relief groove 141, which is provided through the vertical direction of the refrigerator door 100. The outer door 20 covers the relief groove 141.

[0091] The lower frame strip 14 includes a base 142 and a protrusion 143 connected to the base 142. The protrusion 142 extends horizontally towards the front of the refrigerator door 100. In the locked state, the outer door 20 rests on the upper side of the protrusion 143, which provides limiting support for the bottom of the outer door 20. A portion of the outer door 20 is exposed in the clearance groove 141, facilitating upward lifting of the outer door 20 for easy user disassembly.

[0092] The following is a detailed description of the process of installing and removing the outer door 20:

[0093] When installing the outer door 20, the hook 31 is inserted into the positioning member 32 through the opening 322 along the inclined direction, while the locking block 42 enters the mounting groove 431. The outer door 20 moves downward under the action of gravity. During the downward movement, the hook 31 engages with the locking groove 321. The locking block 42 abuts against the locking lock 41, causing the locking lock 41 to rotate clockwise. When the locking block 42 moves to one side of the locking lock 41, under the action of the elastic rotating member 45, the locking lock 41 rotates counterclockwise to the locked state. The first locking tooth 411 on the locking lock 41 engages with the first tooth groove 421 on the locking block 42, and the second locking tooth 412 engages with the second tooth groove 422, thereby locking the outer door 20.

[0094] When disassembling the outer door 20, the external magnet 415 attracts or repels the magnet 415 on the latch 41. Under the action of magnetic attraction, the latch 41 rotates clockwise, causing it to disengage from the locking block 42. If the magnetic force is unstable, an external tool can be inserted into the unlocking hole 11 to push or pull the extension arm 416, causing the latch 41 to rotate clockwise to the unlocked state. Push the push block 13 towards the outer door 20 to release the upper trim strip 121 from its restriction on the top of the outer door 20. Finally, the push block 13 supports the outer door 20 upwards at the clearance groove 141, causing the hook 31 to separate from the groove 321, thus completing the disassembly of the outer door 20.

[0095] The refrigerator door 100 structure of the present invention enables simple and quick replacement of the outer door 20, and the replacement process does not require the use of professional tools. Even a single person can easily replace the outer door 20. This not only enables efficient replacement of the outer door 20, but also facilitates user operation and improves user experience.

[0096] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A refrigerator door (100), comprising an inner door (10) and an outer door (20) detachably connected to the inner door (10), characterized in that, The refrigerator door (100) also includes: The positioning structure (30) includes a hook (31) and a positioning element (32), one of which is disposed on the inner door (10) and the other is disposed on the outer door (20). The positioning element (32) has a slot (321) for engaging with the hook (31). The locking structure (40) includes a latch (41) and a latch (42). The latch (41) is rotatably mounted on one of the inner door (10) and the outer door (20) via a pivot (44). The latch (42) is fixed on the other of the inner door (10) and the outer door (20). The latch (41) has a locked state that engages with the latch (42) and an unlocked state that is separated from the latch (42). The pivot (44) is perpendicular to the inner door (10) or the outer door (20).

2. The refrigerator door (100) according to claim 1, characterized in that, The card block (42) is provided with at least a first tooth groove (421), and the card lock (41) is provided with at least a first tooth (411), the first tooth (411) being used to engage with the first tooth groove (421); And / or, the card block (42) is provided with a second tooth groove (422), and the card lock (41) is provided with a second tooth (412), the second tooth (412) being used to engage with the second tooth groove (422).

3. The refrigerator door (100) according to claim 2, characterized in that, The first locking tooth (411) and the second locking tooth (412) extend in a direction away from the locking mechanism (41), and the extension length of the second locking tooth (412) is greater than the extension length of the first locking tooth (411).

4. The refrigerator door (100) according to claim 1, characterized in that, The locking structure (40) also includes a connecting box (43) fixed to the inner door (10), the rotating shaft (44) is connected to the connecting box (43), and the rotating shaft (44) is provided with an elastic rotating member (45) for rotating the latch (41) from the unlocked state to the locked state.

5. The refrigerator door (100) according to claim 4, characterized in that, The card lock (41) has an unlocking arm (414), and a magnet (415) is provided on the unlocking arm (414); And / or, the lock (41) has an extension arm (416), and the inner door (10) is provided with an unlocking hole (11), which is disposed opposite to the extension arm (416).

6. The refrigerator door (100) according to claim 5, characterized in that, The connecting box (43) is provided with an installation groove (431), the installation groove (431) has a first groove wall (432) and a second groove wall (433); the unlocking arm (414) and the extension arm (416) are not coplanar on the side facing the first groove wall (432). When the lock (41) is in the locked state, one side of the locking block (42) is in contact with the second groove wall (433), and the extension arm (416) is in contact with the first groove wall (432); when the lock (41) is in the unlocked state, the unlocking arm (414) is in contact with the first groove wall (432).

7. The refrigerator door (100) according to claim 1, characterized in that, The hook (31) is fixed to the outer door (20). The hook (31) includes an inclined portion (312) that gradually tilts from top to bottom away from the outer door (20). The slot (321) has an inclined groove wall (323) for engaging with the inclined portion (312).

8. The refrigerator door (100) according to claim 1, characterized in that, The positioning member (32) is fixed to the inner door (10), and the positioning member (32) also has an opening (322) communicating with the slot (321), and the opening (322) is open to the front side of the refrigerator door (100); And / or, the positioning structure (30) is arranged in a plurality of units along the vertical direction, and the locking structure (40) is located at the side of the refrigerator door (100).

9. The refrigerator door (100) according to claim 1, characterized in that, The refrigerator door (100) also includes an upper trim strip (121) fixed to the inner door (10). The outer edge of the upper trim strip (121) protrudes from the front side of the inner door (10). In the locked state, at least part of the upper trim strip (121) engages with the top of the outer door (20).

10. The refrigerator door (100) according to claim 9, characterized in that, The inner door (10) is provided with a push block (13) that moves along the front and back direction of the refrigerator door (100), and the push block (13) is positioned opposite to the upper side of the outer door (20).

11. The refrigerator door (100) according to claim 1, characterized in that, The inner door (10) includes an inner lining and an upper frame strip (12), a lower frame strip (14) and two side frame strips (15) connected to the inner lining. The positioning member (32) and the locking device (41) are connected to the side frame strips (15).

12. The refrigerator door (100) according to claim 11, characterized in that, In the locked state, at least part of the lower frame strip (14) is located on the underside of the outer door (20); the lower frame strip (14) is provided with a clearance groove (141), the clearance groove (141) is provided through the vertical direction of the refrigerator door (100), and the outer door (20) covers the clearance groove (141).

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