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 locking structure, wherein the locking structure comprises a clamping block and a push-pull lock; the clamping block is fixed on one of the inner door and the outer door; the push-pull lock is detachably connected to the other one of the inner door and the outer door; the clamping block is provided with a locking groove matched with the push-pull lock; when the push-pull lock is installed on the refrigerator door body, the push-pull lock is engaged with the locking groove to lock the clamping block; when the push-pull lock is separated from the refrigerator door body, the push-pull lock is separated from the locking groove to unlock the clamping block. When the outer door needs to be detached, the push-pull lock is only needed to be detached, so that the inner door and the outer door can be conveniently detached. During installation of the outer door, the locking structure can be used to position and lock the outer door. Therefore, the refrigerator door body provided by the application can quickly and conveniently realize installation and detachment of the outer door, and facilitates replacement of the outer door by a user.

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 body that overcomes the shortcomings of related technologies, enabling simple and convenient disassembly and installation of the refrigerator door panel, allowing users to replace the panel themselves.

[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 locking structure includes a locking block and a push-pull lock. The locking block is fixed to one of the inner door and the outer door, and the push-pull lock is detachably connected to the other of the inner door and the outer door. The locking block is provided with a lock groove that cooperates with the push-pull lock. When the push-pull lock is installed on the refrigerator door, the push-pull lock engages with the lock groove to lock the locking block. When the push-pull lock is separated from the refrigerator door, the push-pull lock separates from the lock groove to unlock the locking block.

[0006] In one embodiment of this application, the locking structure further includes a locking member, the push-pull lock is detachably connected to the locking member, the locking member is provided with a slot and a through slot, the slot and the through slot are interconnected, the slot extends along a first direction, the slot is used to cooperate with the locking block, when the push-pull lock is installed on the locking member, the push-pull lock passes through the through slot and extends into the locking slot, the installation and / or separation path of the push-pull lock relative to the locking member is defined as a first preset path, the first preset path is perpendicular to the first direction.

[0007] In one embodiment of this application, the push-pull lock includes a latch and a locking block movably disposed on the latch along a second preset path, the second preset path being perpendicular to the first preset path, and the locking block being provided with locking teeth;

[0008] The locking member is provided with an engaging groove recessed from the side wall of the through groove toward the side away from the through groove, and the locking block has a locking position in which the locking teeth engage with the engaging groove and an unlocking position in which the locking teeth are separated from the engaging groove.

[0009] In one embodiment of this application, the locking member is further provided with a guide portion, which is disposed on the side of the engaging groove away from the engaging groove. The guide portion has a guide wall, which gradually slopes toward the engaging groove towards the groove.

[0010] In one embodiment of this application, the locking block is provided with a first limiting hook, and the locking tongue is provided with a second limiting hook. The first limiting hook is displaced along the second preset path to engage or disengage with the second limiting hook.

[0011] In one embodiment of this application, a buffer groove is provided on the side of the second limiting hook opposite to the first limiting hook.

[0012] In one embodiment of this application, the locking tongue is provided with a mounting groove, the locking block is slidably disposed in the mounting groove, and an elastic element is connected between the locking block and the side wall of the mounting groove. The axial direction of the elastic element extends along the second preset path. When the elastic element is in its natural state, at least a portion of the locking teeth protrude from the outside of the mounting groove.

[0013] In one embodiment of this application, the locking block is provided with an elastic piece for engaging with the sidewall of the slot.

[0014] In one embodiment of this application, the card slot is provided with a receiving groove on the side wall opposite to the through slot for the elastic sheet to extend into.

[0015] In one embodiment of this application, the card slot has a first bottom wall, the through slot has a second bottom wall, the first bottom wall is lower than the second bottom wall, the first bottom wall has a positioning protrusion, the positioning protrusion protrudes toward the center of the card slot, and the maximum height of the positioning protrusion is not higher than the second bottom wall.

[0016] In one embodiment of this application, the locking block is fixed to the outer door, and the push-pull lock is detachably connected to the inner door.

[0017] In one embodiment of this application, the refrigerator door further includes a positioning structure, which includes a positioning block and a positioning element. One of the positioning block and the positioning element is disposed on the inner door, and the other is disposed on the outer door. The positioning element is provided with a positioning groove for engaging with the positioning block, and the positioning groove extends along a first direction.

[0018] In one embodiment of this application, in the first positioning structure, the positioning structure is provided in two sets, and each set of positioning structures has a plurality of units arranged along the vertical direction of the refrigerator door. The two sets of positioning structures are respectively referred to as the first positioning structure and the second positioning structure. Along the vertical direction of the refrigerator door, the locking structure overlaps with the second positioning structure.

[0019] In the first positioning structure, a positioning post is provided on the bottom wall of the positioning groove, and a connecting groove that cooperates with the positioning post is provided on the positioning block. In the vertical direction of the refrigerator door, the distance between the positioning post and the side wall of the positioning groove is greater than the height of the positioning block.

[0020] Compared with related technologies, this invention allows for a simpler disassembly of the inner and outer doors when the outer door needs to be removed, by simply removing the push-pull lock. During the installation of the outer door, the push-pull lock is installed on the inner door to lock it. Therefore, the refrigerator door provided by this invention allows for quick and convenient installation and removal of the outer door, making it easy for users to replace the outer door. Attached Figure Description

[0021] Figure 1 This is an exploded structural diagram of a refrigerator door provided by the present invention;

[0022] Figure 2 yes Figure 1 Enlarged structural diagram of section A;

[0023] Figure 3 This is a schematic diagram of the structure of the outer door of a refrigerator door provided by the present invention;

[0024] Figure 4 yes Figure 3 Enlarged structural diagram of section B;

[0025] Figure 5 yes Figure 3 Enlarged structural diagram of section C;

[0026] Figure 6 This is an exploded structural diagram of a push-pull lock in a refrigerator door provided by the present invention;

[0027] Figure 7This is a partial structural diagram of a push-pull lock in a refrigerator door provided by the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the inner door of a refrigerator door provided by the present invention;

[0029] Figure 9 yes Figure 8 Enlarged structural diagram of section D.

[0030] Figure label:

[0031] 100. Refrigerator door body; 10. Inner door; 20. Outer door; 31. First positioning structure; 32. Second positioning structure; 311. Positioning block; 312. Positioning component; 313. Positioning groove; 314. Positioning post; 315. Wire groove; 40. Locking structure; 41. Locking block; 411. Lock groove; 42. Push-pull lock; 421. Lock tongue; 422. Locking block; 423. Locking tooth; 424. First limiting hook; 4241. First vertical part; 4242. First horizontal part; 425. Second limiting hook Hook; 4251, Second vertical part; 4252, Second horizontal part; 426, Buffer groove; 427, Mounting groove; 428, Elastic element; 429, Connecting rod; 431, Elastic piece; 4311, Connecting part; 4312, Bending part; 4313, Supporting part; 432, Operating piece; 44, Locking element; 441, Slot; 4411, Positioning protrusion; 4412, First bottom wall; 442, Through groove; 4421, Second bottom wall; 443, Engaging groove; 444, Guide part; 445, Receiving groove. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] The following will refer to the appendix in the embodiments of the present invention. Figure 1 -9. The technical solutions in the embodiments of the present invention are clearly and completely described.

[0037] 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.

[0038] The refrigerator door 100 includes a locking structure 40, which is located between the inner door 10 and the outer door 20. The locking structure 40 is used to position and fix the inner door 10 and the outer door 20, making the installation and removal of the inner door 10 and the outer door 20 simple and quick.

[0039] The locking structure 40 includes a locking block 41 and a push-pull lock 42. The locking block 41 is fixed to one of the inner door 10 and the outer door 20, and the push-pull lock 42 is detachably connected to the other of the inner door 10 and the outer door 20. The locking block 41 is provided with a lock groove 411 that cooperates with the push-pull lock 42.

[0040] When the push-pull lock 42 is installed on the refrigerator door 100, the push-pull lock 42 engages with the lock groove 411 to lock the locking block 41. When the push-pull lock 42 is separated from the refrigerator door 100, the push-pull lock 42 separates from the lock groove 411 to unlock the locking block 41.

[0041] When it is necessary to disassemble the outer door 20, simply removing the push-pull lock 42 allows for easy separation between the inner door 10 and the outer door 20. During the installation of the outer door 20, the push-pull lock 42 is installed on the inner door 10 to lock the outer door 20. Therefore, the refrigerator door 100 provided by this invention enables quick and convenient installation and removal of the outer door 20, facilitating user replacement of the outer door 20.

[0042] In some embodiments, the latch 41 is fixed to the outer door 20, and the push-pull lock 42 is detachably connected to the inner door 10. This configuration reduces the thickness of the outer door 20 (the dimension of the outer door 20 in the front-to-back direction of the refrigerator door body 100), and the outer door 20, as a consumable, does not need to have a structure that cooperates with the push-pull lock 42. The structure of the outer door 20 is simpler, reducing the cost required to replace the outer door 20.

[0043] In some implementations, the latch 41 may also be fixed to the inner door 10, and the push-pull lock 42 may be detachably connected to the outer door 20.

[0044] 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.

[0045] The locking structure 40 also includes a locking element 44. The push-pull lock 42 is detachably connected to the locking element 44. The locking element 44 is provided with a slot 441 and a through slot 442. The slot 441 and the through slot 442 are arranged along the width direction of the refrigerator door 100 (refer to the left and right direction of the refrigerator door 100 in the actual closed state, the same below), and the slot 441 and the through slot 442 are interconnected.

[0046] The slot 441 extends along a first direction, which is the front-to-back direction of the refrigerator door. In this embodiment, the slot 441 is open on the side facing the outer door 20, and the slot 441 is used to cooperate with the locking block 41. The outer door 20 is installed onto the inner door 10 from front to back.

[0047] In some embodiments, the slot 441 can extend in other directions, such as vertically. A hook structure can be provided on the outer door 20, which engages with the slot 441. The outer door 20 can be installed from top to bottom onto the inner door 10, and then the hook structure can be locked by the push-pull lock 42.

[0048] The shape and size of the slot 441 are roughly matched with the shape and size of the block 41. When the outer door 20 is installed on the inner door 10, the block 41 and the slot 441 cooperate to achieve initial positioning and fixation.

[0049] The through groove 442 is used to cooperate with the push-pull lock 42. The through groove 442 is located near the edge of the inner door 10 and is open to the outside of the refrigerator door 100. The push-pull lock 42 extends into the through groove 442 from the opening, passes through the through groove 442 and extends into the slot 441. When the locking block 41 is located in the slot 441, the push-pull lock 42 can extend into the locking groove 411 in the locking block 41, thereby locking the locking block 41 with the push-pull lock 42, and thus fixing the outer door 20 to the inner door 10. The assembly of the outer door 20 and the inner door 10 is simpler and faster.

[0050] The path for the installation and / or separation of the push-pull lock 42 relative to the locking member 44 is defined as a first preset path F, which is perpendicular to a first direction, that is, the first preset path F is perpendicular to the front and back direction of the refrigerator door 100.

[0051] In some implementations, the first preset path F may also be oblique but not perpendicular to the front-back direction of the refrigerator door 100, as long as it can limit the position of the locking block 41.

[0052] The locking block 41 and the locking groove 441 cooperate in the front-to-back direction. By limiting the shape and size of the locking groove 441 and the locking block 41, the displacement of the outer door 20 in the vertical and horizontal directions can be restricted. The push-pull lock 42 and the lock groove 411 cooperate in the width direction, which can also restrict the displacement of the outer door 20 in the vertical and front-to-back directions.

[0053] Therefore, by setting a locking structure 40, the present invention fixes the directions of the outer door 20's upward, downward, left, right, forward, and backward displacement after it is installed on the inner door 10, making the fixation between the outer door 20 and the inner door 10 more reliable. After the outer door 20 is installed on the inner door 10, there will be no situation where the outer door 20 becomes loose or falls off, ensuring the safety of the user when replacing the outer door 20.

[0054] The push-pull lock 42 includes a latch 421 and a locking block 422 movably disposed on the latch 421 along a second preset path Q. The second preset path Q is perpendicular to the first preset path F. The locking block 422 is provided with a locking tooth 423.

[0055] In an optional implementation, the second preset path Q may also be oblique but not perpendicular to the first preset path F, as long as the locking teeth 423 on the locking block 422 can limit the movement of the locking tongue 421 during the movement of the second preset path Q.

[0056] The first preset path F can be the movement trajectory of the push-pull lock 42 relative to the inner door 10, and the second preset path Q can be the movement trajectory of the locking block 422 relative to the latch 421. The shape and / or direction of the movement trajectory are defined to form the first preset path F and the second preset path Q respectively. The first preset path F and the second preset path Q are defined as straight or approximately straight paths.

[0057] The locking member 44 is provided with an engaging groove 443 located on one side of the through groove 442. The engaging groove 443 is recessed from the side wall of the through groove 442 toward the side away from the through groove 422. The engaging groove 443 is used to engage with the locking tooth 423. The locking block 422 has a locking position where the locking tooth 423 engages with the engaging groove 443, and an unlocking position where the locking tooth 423 is separated from the engaging groove 443.

[0058] During the movement of the locking block 422 along the second preset path Q, the locking block 422 causes the locking tooth 423 to move along the second preset path Q. The locking tooth 423 can engage with the engaging groove 443. When the locking tooth 423 engages with the engaging groove 443, it can limit the push-pull lock 42 and prevent the push-pull lock 42 from coming out of the locking member 44 along the left and right direction of the refrigerator door 100.

[0059] The locking member 44 also includes a guide portion 444, which is located on the side of the engaging groove 443 opposite to the engaging groove 441, and is recessed inward from the side wall of the through groove 442. The guide portion 444 has a guide wall 4441, which gradually slopes towards the through groove 442 from the side of the engaging groove 443.

[0060] With this configuration, the mating surfaces of the guide part 444 and the locking tooth 423 are set as guide slopes. When the locking tongue 421 moves along the first preset path F, the slope of the guide part 444 can guide the locking tooth 423, so that the locking tooth 423 can smoothly engage with the locking groove 443.

[0061] When the locking tongue 421 engages with the locking member 44, the side of the locking tooth 423 facing the slot 441 is an inclined surface, which matches the guide wall 4441. The side of the locking tooth 423 away from the slot 441 is a vertical surface. The guide part 444 and the engaging groove 443 are arranged sequentially along the first preset path F. The guide part 444 is located at the opening position of the through groove 442 on the side away from the slot 441. The groove wall of the engaging groove 443 closer to the slot 441 is also set as an inclined surface that matches the locking tooth 423, and the inclined surface of the engaging groove 443 is in contact with the bottom wall of the through groove 442. Both the guide part 444 and the engaging groove 443 guide the locking tooth 423.

[0062] A first limiting hook 424 is provided on the locking block 422, and the first limiting hook 424 is fixed on the locking block 422. A second limiting hook 425 is provided on the locking tongue 421, and the second limiting hook 425 is fixed on the locking tongue 421. The first limiting hook 424 is displaced along a second preset path Q to engage or disengage with the second limiting hook 425.

[0063] It should be noted that the highest point of the guide part 444 is set lower than the highest point of the engaging groove 443. So that when the push-pull lock 42 moves along the first preset path F, when the locking tooth 423 is located at the guide part 444, the first limiting hook 424 will not engage with the second limiting hook 425, ensuring that the locking tooth 423 engages smoothly with the engaging groove 443.

[0064] The first limiting hook 424 includes a first vertical portion 4241 and a first horizontal portion 4242, the first horizontal portion 4242 extending vertically outward from the vertical sidewall of the first vertical portion 4241. The second limiting hook 425 includes a second vertical portion 4251 and a second horizontal portion 4252, the second horizontal portion 4252 extending vertically outward from the vertical sidewall of the second vertical portion 4251.

[0065] The first horizontal portion 4242 and the second horizontal portion 4252 are arranged facing each other, and the second horizontal portion 4252 extends onto the movement path of the first horizontal portion 4242.

[0066] During the displacement of the locking block 422 along the second preset path Q, the first limiting hook 424 moves synchronously with the locking block 422. When the first horizontal part 4242 in the first limiting hook 424 moves to cooperate with the second horizontal part 4252 in the second limiting hook 425, the first limiting hook 424 is restricted to move on the second preset path Q under the limiting action of the second limiting hook 425, thereby locking the locking block 422.

[0067] The position where the first horizontal part 4242 and the second horizontal part 4252 cooperate is set as an inclined guide structure. When the first limiting hook 424 and the second limiting hook 425 cooperate, the first horizontal part 4242 and the second horizontal part 4252 can be smoothly engaged under the action of the inclined surface.

[0068] The second limiting hook 425 is provided with a buffer groove 426 on the side opposite to the first limiting hook 424, that is, the second limiting hook 425 is spaced apart from the side wall of the locking tongue 421.

[0069] The second limiting hook 425 is made of plastic, and the second vertical part 4251 is a slender structure. When a certain pressure is applied to the second limiting hook 425, the second limiting hook 425 can deform. The buffer groove 426 provides space for the deformation of the second limiting hook 425, so that the first limiting hook 424 can be smoothly separated from the second limiting hook 425.

[0070] More specifically, the locking tongue 421 is provided with a mounting groove 427, and the locking block 422 is slidably disposed within the mounting groove 427. An elastic element 428 is connected between the locking block 422 and the side wall of the mounting groove 427, and the elastic element 428 is configured as a spring. The axial direction of the elastic element 428 extends along the second preset path Q.

[0071] A connecting rod 429 is fixed on the locking block 422, and the locking tongue 421 is provided with a sliding groove (not shown) for the connecting rod 429 to slide through. Both the connecting rod 429 and the sliding groove extend along the second moving path Q.

[0072] The spring is sleeved on the connecting rod 429, with one end of the spring abutting against the locking tongue 421 and the other end abutting against the locking block 422.

[0073] When the elastic element 428 is in its natural state, at least a portion of the locking teeth 423 protrude from the outside of the mounting groove 427. When the locking teeth 423 on the locking block 422 engage with the engaging groove 443, the elastic element 428 is in a first compressed state. When the first limiting hook 424 engages with the second limiting hook 425, the elastic element 428 is in a second compressed state, and the locking teeth 423 are completely retracted into the mounting groove 427. The elastic potential energy of the elastic element 428 in the second compressed state is greater than that in the first compressed state.

[0074] The elastic element 428 provides a driving force for the locking block 422 to protrude outward into the mounting groove 427. When the locking tongue 421 engages with the through groove 442, the locking tooth 423 engages with the guide part 444 and the engaging groove 443, so that the engaging groove 443 can limit and fix the locking tooth 423, thereby locking the push-pull lock 42 and the locking block 41.

[0075] As the latch 421 continues to move along the first moving path F toward the slot 441, under the guiding action of the engaging slot 443 on the locking teeth 423, the locking block 422 retracts into the mounting slot 427, causing the first limiting hook 424 and the second limiting hook 425 to engage, thereby unlocking the latch 421. The latch 421 can then be easily disassembled, thus unlocking the push-pull lock 42 and the locking block 41.

[0076] The locking block 422 is provided with an elastic piece 431. In the pre-installed state where the push-pull lock 42 faces the inner door 10, the elastic piece 431 is fixed to the side of the locking block 422 facing the inner door 10. The elastic piece 431 is used to cooperate with the side of the card slot 441 opposite to the through slot 442.

[0077] The elastic sheet 431 includes a connecting portion 4311, a bending portion 4312, and a supporting portion 4313, which are integrally connected. The connecting portion 4311 can be fixed to the locking block 422 by fasteners. The bending portion 4312 extends obliquely away from the locking block 422. The supporting portion 4313 is parallel or substantially parallel to the connecting portion 4311, and both the supporting portion 4313 and the connecting portion 4311 extend substantially in a vertical direction. The elastic sheet 431 is made of spring steel and has certain elastic deformation characteristics.

[0078] The side wall of the slot 441 opposite to the through slot 442 is provided with a receiving groove 445 for the elastic piece 431 to extend into. The receiving groove 445 is formed by recessing inward from the side wall of the slot 441. When the push-pull lock 42 and the locking block 41 are engaged, the elastic piece 431 can engage with the receiving groove 445.

[0079] When the push-pull lock 42 is locked in place with the latch 41, the elastic piece 431 extends into the receiving groove 445, and the supporting part 4313 abuts against the side wall of the receiving groove 445. When it is necessary to unlock the latch 41, the push-pull lock 42 is pushed towards the latch groove 441, causing the push-pull lock 42 to move along the first preset path F. The elastic piece 431 is in a compressed state, at which time the first limiting hook 424 and the second limiting hook 425 engage, and the lock tongue 421 is in an unlockable state. Under the action of the elastic potential energy of the elastic piece 431, the push-pull lock 42 pops outward toward the outside of the refrigerator door 100, making it easy to disassemble the push-pull lock 42.

[0080] More specifically, the push-pull lock 42 also includes an operating piece 432, which is fixed to the side of the latch 421 opposite to the elastic piece 431. In the front-back direction and the up-down direction of the refrigerator door 100, the size of the operating piece 432 is larger than the size of the latch 421, and the larger size of the operating piece 432 makes it easier to push and pull the push-pull lock 42.

[0081] The slot 441 has a first bottom wall 4412, and the through slot 442 has a second bottom wall 4421. The first bottom wall 4412 is lower than the second bottom wall 4421. The slot 441 forms a stepped groove between the first bottom wall 4412 and the second bottom wall 4421, which can provide a certain error space for the connection of the card block 41, so that the card block 41 can smoothly cooperate with the slot 441.

[0082] The first bottom wall 4412 has a positioning protrusion 4411, which protrudes towards the center of the slot 441. The positioning protrusion 4411 gradually slopes upward from both sides towards the middle, and the maximum height of the positioning protrusion 4411 is not higher than the second bottom wall 4421, ensuring that the locking block 41 smoothly enters the slot 441. The positioning protrusion 4411 positions the locking block 41, so that after the locking block 41 enters the slot 441, the position of the locking groove 411 matches the position of the through groove 442, ensuring that the push-pull lock 42 smoothly engages with the locking groove 411.

[0083] The refrigerator door 100 also includes a positioning structure, which includes a positioning block 311 and a positioning member 312. One of the positioning block 311 and the positioning member 312 is disposed on the inner door 10 and the other is disposed on the outer door 20. The positioning member 312 is provided with a positioning groove 313 for engaging with the positioning block 311. The positioning groove 313 extends along a first direction and is open to the side away from the inner door 10 or the outer door 20.

[0084] In some embodiments, the positioning block 311 is fixed to the outer door 20, and the positioning member 312 is fixed to the inner door 10. The positioning groove 313 in the positioning member 312 extends along the front-back direction of the refrigerator door 100. That is, the positioning groove 313 in the positioning member 312 is open to the outer door 20.

[0085] In some embodiments, the positioning block 311 is fixed to the inner door 10, and the positioning member 312 is fixed to the outer door 20. The positioning groove 313 in the positioning member 312 is open to the inner door 10.

[0086] During the installation and removal of the outer door 20, the positioning block 311 extends into the positioning groove 313 and engages with the positioning groove 313, thereby achieving the fixed positioning of the inner door 10 and the outer door 20 and ensuring the reliability of the installation and removal of the inner door 10 and the outer door 20.

[0087] The positioning structure consists of two sets, each with several units arranged vertically. These two sets are referred to as the first positioning structure 31 and the second positioning structure 32, respectively. These two sets of positioning structures ensure more reliable positioning and connection between the outer door 20 and the inner door 10.

[0088] Along the vertical direction of the refrigerator door 100, the locking structure 40 overlaps with the second positioning structure 32. The overlap of the locking structure 40 and the second positioning structure 32 means that the locking structure 40 and the second positioning structure 32 are arranged vertically and have an overlapping area. This can be understood as the locking structure 40 being located above or below one of the second positioning structures 32.

[0089] The locking structure 40 can play the same positioning role as the second positioning structure 32, so that the outer door 20 and the inner door 10 are initially positioned and connected. In addition, the locking structure 40 and the second positioning structure 32 are arranged in the same vertical direction, which reduces the error of the inner door 10 and the outer door 20 during production and assembly.

[0090] In the first positioning structure 31, the bottom wall of the positioning groove 313 is provided with a positioning post 314, and the positioning block 311 is provided with a winding groove 315 that cooperates with the positioning post 314. The winding groove 315 is configured as a through groove extending in the vertical direction.

[0091] In the vertical direction, the distance L1 between the positioning post 314 and the side wall of the positioning groove 313 is greater than the height L2 of the positioning block 311. When installing the outer door 20, the positioning post 314 in the positioning groove 313 will not interfere with the positioning block 311, ensuring that the positioning block 311 can smoothly enter the positioning groove 313.

[0092] In this embodiment, the positioning block 311 is fixed to the inner door 10, and the positioning element 312 is fixed to the outer door 20. When installing the outer door 20, the positioning block 311 in the first positioning structure 31 extends from above the positioning post 314 into the positioning groove 313. Under the influence of gravity, the outer door 20 moves downwards, engaging with the positioning post 314 via the connecting groove 315. When installing the outer door 20, it can be connected to the inner door 10 first on one side of the first positioning structure 31, and then rotated to connect to the inner door 10 on one side of the second positioning structure 32. This eliminates the need for precise alignment of both the first and second positioning structures 31 and 32 simultaneously, making the installation of the outer door 20 simpler and faster.

[0093] The inner door 10 may be provided with a frame around its perimeter. The first positioning structure 31, the second positioning structure 32 and the locking structure 40 may be provided near the frame. The through groove 442 in the locking member 44 of the locking structure 40 is open to the outside of the inner door 10, so as to facilitate the installation of the push-pull lock 42 onto the inner door 10.

[0094] The following is a detailed description of the process of installing and removing the outer door 20:

[0095] When installing the outer door 20, tilt the outer door 20 left and right, so that the outer door 20 is closer to the inner door 10 on the side of the first positioning structure 31 and further away from the inner door 10 on the side of the second positioning structure 32. First, install the positioning block 311 in the first positioning structure 31 into the positioning groove 313. The outer door 20 moves downward under the action of gravity, and the positioning post 314 engages with the wrapping groove 315 in the positioning block 311. Then rotate the outer door 20 so that the positioning block 311 of the outer door 20 at the second positioning structure 32 is installed into the positioning groove 313, and the outer door 20 is fitted against the inner door 10.

[0096] The push-pull lock 42 is installed into the locking member 44 from the opening position of the side door frame of the inner door 10 along the first preset path F, so that the lock tongue 421 engages with the lock groove 411. Under the action of the elastic member 428, the locking teeth 423 on the locking block 422 cooperate with the engaging groove 443 on the side of the through groove 442 to lock the push-pull lock 42, so that the outer door 20 is reliably fixed on the inner door 10.

[0097] When disassembling the outer door 20, push the push-pull lock 42 along the first preset path F towards the slot 441. Under the guidance of the engaging slot 443, the locking block 422 drives the first limiting hook 424 to move upward, compressing the elastic element 428. The first limiting hook 424 engages with the second limiting hook 425, and the locking tooth 423 disengages from the limiting position of the engaging slot 443. Under the elastic potential energy of the elastic piece 431, the push-pull lock 42 pops outward towards the outside of the refrigerator door 100. Pulling out the push-pull lock 42 unlocks the outer door 20. Finally, rotate the outer door 20 outward and lift it upward, allowing the outer door 20 to easily separate from the inner door 10.

[0098] 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 locking structure (40) includes a locking block (41) and a push-pull lock (42). The locking block (41) is fixed to one of the inner door (10) and the outer door (20). The push-pull lock (42) is detachably connected to the other of the inner door (10) and the outer door (20). The locking block (41) is provided with a lock groove (411) that cooperates with the push-pull lock (42). When the push-pull lock (42) is installed on the refrigerator door (100), the push-pull lock (42) engages with the lock groove (411) to lock the locking block (41). When the push-pull lock (42) is separated from the refrigerator door (100), the push-pull lock (42) separates from the lock groove (411) to unlock the locking block (41).

2. The refrigerator door (100) according to claim 1, characterized in that, The locking structure (40) further includes a locking member (44). The push-pull lock (42) is detachably connected to the locking member (44). The locking member (44) is provided with a slot (441) and a through slot (442). The slot (441) and the through slot (442) are interconnected. The slot (441) extends along a first direction and is used to cooperate with the locking block (41). When the push-pull lock (42) is installed on the locking member (44), the push-pull lock (42) passes through the through slot (442) and extends into the locking groove (411). The path of installation and / or separation of the push-pull lock (42) relative to the locking member (44) is defined as a first preset path. The first preset path is perpendicular to the first direction.

3. The refrigerator door (100) according to claim 2, characterized in that, The push-pull lock (42) includes a latch (421) and a locking block (422) movably disposed on the latch (421) along a second preset path, the second preset path being perpendicular to the first preset path, and the locking block (422) being provided with a locking tooth (423). The locking member (44) is provided with an engaging groove (443) recessed from the side wall of the through groove (442) toward the side away from the through groove (442), and the locking block (422) has a locking position in which the locking tooth (423) engages with the engaging groove (443) and an unlocking position in which the locking tooth (423) is separated from the engaging groove (443).

4. The refrigerator door (100) according to claim 3, characterized in that, The locking member (44) is also provided with a guide part (444), which is located on the side of the engaging groove (443) away from the engaging groove (441). The guide part (444) has a guide wall (4441), which gradually slopes towards the through groove (442) on the side of the engaging groove (443).

5. The refrigerator door (100) according to claim 3, characterized in that, The locking block (422) is provided with a first limiting hook (424), and the locking tongue (421) is provided with a second limiting hook (425). The first limiting hook (424) is displaced along the second preset path to engage or disengage with the second limiting hook (425).

6. The refrigerator door (100) according to claim 5, characterized in that, The second limiting hook (425) has a buffer groove (426) on the side opposite to the first limiting hook (424).

7. The refrigerator door (100) according to claim 5, characterized in that, The locking tongue (421) is provided with a mounting groove (427), and the locking block (422) is slidably disposed in the mounting groove (427). An elastic element (428) is connected between the locking block (422) and the side wall of the mounting groove (427). The axial direction of the elastic element (428) extends along the second preset path. When the elastic element (428) is in its natural state, at least a portion of the locking teeth (423) protrude from the outside of the mounting groove (427).

8. The refrigerator door (100) according to claim 5, characterized in that, The locking block (422) is provided with an elastic piece (431) for engaging with the side of the slot (441) opposite to the through slot (442).

9. The refrigerator door (100) according to claim 8, characterized in that, The slot (441) has a receiving groove (445) on its side wall opposite to the through groove (442) for the elastic piece (431) to extend into.

10. The refrigerator door (100) according to claim 2, characterized in that, The slot (441) has a first bottom wall (4412), and the through slot (442) has a second bottom wall (4421). The first bottom wall (4412) is lower than the second bottom wall (4421). The first bottom wall (4412) has a positioning protrusion (4411). The positioning protrusion (4411) protrudes toward the center of the slot (441), and the maximum height of the positioning protrusion (4411) is not higher than the second bottom wall (4421).

11. The refrigerator door (100) according to claim 1, characterized in that, The locking block (41) is fixed to the outer door (20), and the push-pull lock (42) is detachably connected to the inner door (10).

12. The refrigerator door (100) according to any one of claims 1-11, characterized in that, The refrigerator door (100) also includes a positioning structure, which includes a positioning block (311) and a positioning element (312). One of the positioning block (311) and the positioning element (312) is disposed on the inner door (10) and the other is disposed on the outer door (20). The positioning element (312) is provided with a positioning groove (313) for engaging with the positioning block (311). The positioning groove (313) extends along a first direction.

13. The refrigerator door (100) according to claim 12, characterized in that, The positioning structure is provided in two sets. Each set of positioning structures has several units arranged along the vertical direction of the refrigerator door (100). The two sets of positioning structures are respectively called the first positioning structure (31) and the second positioning structure (32). Along the vertical direction of the refrigerator door (100), the locking structure (40) overlaps with the second positioning structure (32). In the first positioning structure (31), the bottom wall of the positioning groove (313) is provided with a positioning post (314), and the positioning block (311) is provided with a wrapping groove (315) that cooperates with the positioning post (314). In the vertical direction of the refrigerator door (100), the distance between the positioning post (314) and the side wall of the positioning groove (313) is greater than the height of the positioning block (311).

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