Front-back push-pull three-door refrigerator door body and refrigerator opening assembly structure

Abstract

The utility model provides a door body and cabinet opening assembling structure of a front-back push-pull three-door refrigerator, which comprises an opening frame, a door body and a door body, the slideway structure is arranged on the middle beam and the bearing frame; the door body comprises a front door, a middle door and a rear door, the front door is located below the middle door, the middle door is located below the rear door, and the front door and the middle door are slidably connected to the slideway structure; the accommodating cavity and the mounting part are respectively formed on the bearing frame and the middle beam and are used for mounting a rear door; the limiting piece is movably connected to the middle beam, and when the limiting piece is located at the first position, an overlapping area exists between the limiting piece and the rear door in the thickness direction of the rear door; wherein the limiting piece is located above the slide way structure, and the slide way structure protrudes towards the middle of the cabinet opening relative to the installation part. The cabinet opening is opened and closed through the three-door body, friction force is reduced, a user can open the cabinet conveniently, the door body is convenient to assemble by arranging the detachable stopping piece, and the cabinet is easy and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration equipment, and particularly relates to a front-back push-pull three-door refrigerator door body and a cabinet opening assembly structure. Background Art

[0002] Commercial refrigerators refer to refrigerated or frozen freezers that are used exclusively for storing ice cream, beverages, dairy products, quick-frozen foods, food materials, etc. in commercial channels such as supermarkets, cold drink shops, frozen food stores, hotels and restaurants.

[0003] In the related art, the top of the commercial refrigerator has a cabinet opening, and a door body is arranged at the cabinet opening. The structure of the door body of the commercial refrigerator is mostly a left and right sliding door. For refrigerators with a length greater than 2m, the door body is too large and heavy, resulting in too much friction. Customers report that it is difficult to push and pull during use, which affects consumer shopping. The left and right sliding door structure has a single style, which seriously restricts the development of product diversification, cannot meet the needs of market customers, and has low competitiveness among market peers. In addition, there are front and back sliding door appearances in the related art, but most of them are relatively rigid in design and uncoordinated in proportion. The assembly process of the door body and the cabinet opening is relatively cumbersome and complicated, affecting assembly efficiency. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end,

[0005] According to an embodiment of the present disclosure, a front and rear sliding three-door refrigerator door body and cabinet opening assembly structure is provided, which includes:

[0006] The opening frame comprises a frame body and a middle beam, wherein the middle beam is arranged on the frame body so that a cabinet opening is formed on both sides of the middle beam, and the frame body comprises two load-bearing frames arranged opposite to each other;

[0007] A slide structure is provided on the middle beam and the load-bearing frame on both sides of the cabinet opening;

[0008] A door body, used to open or close the cabinet opening, the door body comprising a front door, a middle door and a rear door arranged in sequence from front to rear, the front door is located below the middle door, the middle door is located below the rear door, and the front door and the middle door are slidably connected to the slideway structure;

[0009] An accommodating cavity, formed on the bearing frame, for accommodating the first end of the rear door;

[0010] The center beam includes a mounting portion, and the mounting portion is used to support the second end of the rear door;

[0011] A limiting member, disposed on the middle beam and movable between a first position and a second position;

[0012] When the limiting member is in the first position, there is an overlapping area between the limiting member and the rear door in the thickness direction of the rear door, so as to limit the movement of the rear door in the thickness direction of the rear door;

[0013] When the limiting member is in the second position, there is no overlapping area between the rear door and the limiting member;

[0014] Wherein, the limiting member is located above the slide structure, and the slide structure on the middle beam protrudes toward the middle of the cabinet opening relative to the mounting portion.

[0015] The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure provided by the technical solution adopts a three-door door body to open and close the cabinet opening, which reduces friction and is convenient for users to open. The slide structure protrudes toward the middle of the cabinet opening relative to the mounting portion, and the limiter can be movably arranged, so that when assembling the door body, it is only necessary to adjust the limiter to the second position, and then install the front door and the middle door on the slide structure in turn, and then install the rear door on the accommodating cavity and the mounting portion. The assembly process is simple and convenient, and the assembly efficiency is improved. The limiter can be movably arranged, not easy to lose, and improves the user experience.

[0016] According to an embodiment of the present disclosure, the second ends of the rear doors on both sides of the center beam are self-reset on the mounting portion, and when the limiting member is in the first position, there is an overlapping area between the limiting member and the two rear doors in the thickness direction of the rear doors.

[0017] In this technical solution, a limiting member is provided to limit the two rear doors, which is simple and convenient.

[0018] According to an embodiment of the present disclosure, the center beam includes an appearance part, which is located on the front side of the mounting portion and protrudes upward relative to the mounting portion. The mounting portion is located between the appearance part and the frame body, and the appearance part and the frame body are used to limit the movement of the rear door in the front and rear directions.

[0019] In this technical solution, the appearance member and the frame limit the movement of the rear door in the front-to-back direction, and the limit member and the installation portion limit the stop member in the up-and-down direction, thereby ensuring the installation stability of the rear door.

[0020] According to an embodiment of the present disclosure, the rear door includes a stopper located at the second end, the appearance part and one end of the stopper close to each other cooperate to form a downwardly recessed rotating portion, and the limiter is bow-shaped and rotatably arranged in the rotating portion; when the limiter is in the second position, the limiter is located in the portion of the rotating portion on the appearance part.

[0021] In the technical solution, the limiting member is arranged in an arch shape and is rotatably arranged in the rotating part, so that the user can rotate it to adjust its position, thereby controlling the disassembly and assembly of the two door bodies.

[0022] According to an embodiment of the present disclosure, the slide structure includes a front door slide for the front door to slide and a middle door slide for the middle door to slide. The middle door slide on the middle beam protrudes toward the middle of the cabinet opening relative to the mounting portion, and at least part of the front door slide protrudes toward the middle of the cabinet opening relative to the middle door slide.

[0023] In the present technical solution, the middle door slide protrudes toward the middle of the cabinet opening relative to the mounting portion. After adjusting the limit piece to the second position, the mounting portion will not interfere with the assembly of the middle door; at least part of the front door slide protrudes toward the middle of the cabinet opening relative to the middle door slide, thereby avoiding interference of the middle door slide with the assembly of the front door.

[0024] According to an embodiment of the present disclosure, the front door slide includes a first slide and a second slide, the first slide is located below the second slide and protrudes toward the middle of the cabinet opening relative to the second slide, rollers are provided on both sides of the rear of the front door, the first slide is for the front of the front door to slide, and the second slide is for the rollers to roll.

[0025] In this technical solution, rollers are arranged on the front door to convert the sliding friction during the pushing and pulling of the front door into rolling friction, thereby reducing the force required to push the front door and making it easier for users to open or close the cabinet opening.

[0026] According to an embodiment of the present disclosure, the second slide is a sliding step, the middle door slide is in the shape of a straight plate, and the middle door slide and the second slide in the same slide structure overlap in the thickness direction of the middle door.

[0027] This technical solution reduces the width of the load-bearing frame and the middle beam without affecting the assembly of the door body, thereby further increasing the display area by setting the middle door slide to overlap with the second slide in the thickness direction of the middle door.

[0028] According to an embodiment of the present disclosure, a notch is provided at the rear end of the middle door slideway, and the notch is used for the roller to pass through in a vertical direction.

[0029] In the technical solution, a gap is provided for the roller to penetrate in the vertical direction, thereby preventing the middle door slide from interfering with the installation of the front door, which is simple and convenient.

[0030] According to an embodiment of the present disclosure, the middle door and the rear door are of straight plate structure, the front door includes a horizontal section and a curved section, the horizontal section is connected to the rear end of the curved section, the curved section extends downwardly obliquely from back to front, the horizontal section is rollingly connected to the second slide through the roller, and the curved section is slidably connected to the first slide.

[0031] In the technical solution, by providing a curved section, it is convenient for the user to observe the items inside the refrigerator from the front side of the door body.

[0032] According to an embodiment of the present disclosure, the bearing frame includes a top frame located at the top and a supporting portion located below the top frame, and the accommodating cavity is formed between the top frame and the supporting portion; in the direction from top to bottom, the top frame covers the supporting portion.

[0033] The technical solution is that the top frame blocks the support portion to limit the first end of the rear door from moving in the accommodating cavity along the thickness direction of the rear door. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0035] Figure 1 This is a schematic diagram of the assembly structure of the door body and the cabinet opening according to the embodiment of the present disclosure;

[0036] Figure 2 is a schematic diagram of the structure of the mouth frame according to an embodiment of the present disclosure;

[0037] Figure 3 is a schematic diagram of a cabinet opening in an open state according to an embodiment of the present disclosure;

[0038] Figure 4 is a cross-sectional view of the door body and cabinet opening assembly structure according to an embodiment of the present disclosure;

[0039] Figure 5 is a schematic diagram of the structure of the mouth frame at another viewing angle according to an embodiment of the present disclosure;

[0040] Figure 6 is a schematic diagram of the connection between the middle beam and the rear frame according to an embodiment of the present disclosure;

[0041] Figure 7 is a top view of a mouth frame according to an embodiment of the present disclosure;

[0042] Figure 8 is a schematic diagram of the structure of a bearing frame according to an embodiment of the present disclosure;

[0043] Fig. 9 is a schematic structural diagram of a front door according to an embodiment of the present disclosure;

[0044] Fig.10 is a schematic diagram of a partial structure of a mouth frame according to an embodiment of the present disclosure;

[0045] Fig.11 for Fig.10 A partial enlarged view of the middle A;

[0046] Fig.12 for Fig.10 A partial enlarged view of point B in the middle;

[0047] Fig.13 is a cross-sectional view of a cabinet opening in an open state according to an embodiment of the present disclosure;

[0048] Fig.14 is a partial enlarged view of the mouth frame according to the embodiment of the present disclosure;

[0049] Fig.15 is a schematic diagram of the structure of a bearing frame according to an embodiment of the present disclosure;

[0050] Fig.16 It is a partial exploded view of the middle beam and the rear frame according to the embodiment of the present disclosure;

[0051] Fig.17 is a schematic diagram of a state in which the limiting member is in the second position according to an embodiment of the present disclosure;

[0052] Fig.18 is a schematic diagram of a state in which the limiting member is in the first position according to an embodiment of the present disclosure;

[0053] Fig.19 It is a partial exploded view of the door body and the cabinet opening assembly structure according to the embodiment of the present disclosure;

[0054] Fig. 20 is a schematic structural diagram of a sealing member according to an embodiment of the present disclosure;

[0055] Fig.21 is a cross-sectional view of the door body and cabinet opening assembly structure according to an embodiment of the present disclosure;

[0056] Fig. 22 for Fig.21 A partial enlarged view of point C in the middle;

[0057] Fig.23 for Fig.21 A partial enlarged view of point D in the middle;

[0058] Fig.24 It is a cross-sectional view of a cabinet opening in an open state according to an embodiment of the present disclosure.

[0059] In the above figures: the mouth frame 1; the bearing frame 11; the top frame 111; the second clamping portion 112; the supporting portion 113; the middle beam 12; the appearance part 121; the sealing portion 122; the front frame 13; the water guide groove 131; the rear frame 14; the installation portion 15; the sealing airbag 16; the cabinet opening 17; the door body 2; the front door 21; the horizontal section 211; the curved section 212; the first rolling portion 213; the second rolling portion 214; the third sealing strip 215; the sealing rib 216; the universal wheel 217; middle door 22; second sealing strip 221; rear door 23; first sealing strip 231; accommodating chamber 3; fourth sealing strip 31; stopper 4; sliding structure 5; middle door slide 51; notch 511; first slide 52; front slide 521; middle slide 522; rear slide 523; second slide 53; first limiting portion 54; second limiting portion 55; limiting member 6; rotating portion 7; sealing member 8; sealing strip 81; connecting portion 9; first clamping portion 91. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0061] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] The utility model provides a front and rear push-pull three-door refrigerator door body and cabinet opening assembly structure, which relates to the technical field of refrigeration equipment. Figures 1 to 24 The door body and cabinet opening assembly structure of a front-to-back sliding three-door refrigerator are described.

[0065] Please refer to Figure 1 In an illustrative embodiment of the front-to-back sliding three-door refrigerator door body and cabinet opening assembly structure of the present invention, the front-to-back sliding three-door refrigerator door body and cabinet opening assembly structure includes a door frame 1 and a door body 2.

[0066] The mouth frame 1 may include a frame body. The frame body is the main part of the mouth frame 1, and the frame body is connected to the cabinet body of the refrigerator.

[0067] refer to Figure 2 The frame includes two supporting frames 11 arranged opposite to each other, a front frame 13 and a rear frame 14 connected to both ends of the two supporting frames 11. The two supporting frames 11 include a left frame and a right frame, and the front frame 13, the left frame, the rear frame 14 and the right frame are sequentially connected end to end to form the frame.

[0068] In this embodiment, the top of the cabinet of the refrigerator is open, and the opening frame 1 is connected to the opening at the top of the cabinet.

[0069] The opening frame 1 may include a middle beam 12. The middle beam 12 is arranged on the frame body so that a cabinet opening 17 is formed on both sides of the middle beam 12.

[0070] Specifically, two ends of the middle beam 12 are connected to the front frame 13 and the rear frame 14 respectively, and the two bearing frames 11 are located on both sides of the middle beam 12 .

[0071] The door body 2 is used to open or close the cabinet opening 17 .

[0072] refer to Figure 3 , Figure 4 The door body 2 includes a front door 21, a middle door 22 and a rear door 23 arranged in sequence from front to rear. In this embodiment, the front door 21 is located below the middle door 22, and the middle door 22 is located below the rear door 23.

[0073] The lengths of the front door 21, the middle door 22 and the rear door 23 are successively larger. That is, the length of the front door 21 is smaller than the length of the middle door 22, and the length of the middle door 22 is smaller than the length of the rear door 23.

[0074] In this embodiment, the length direction of the door body is the left-right direction in this application. For example, the length dimension of the front door 21 is the dimension between the two ends of the front door 21 in the left-right direction.

[0075] refer to Figure 5 , Figure 6 The assembly structure may include a receiving cavity 3. The receiving cavity 3 is formed on the bearing frame 11 and the middle beam 12, and is used to receive the end of the rear door 23.

[0076] refer to Figure 5 , Figure 6 The assembly structure may include a receiving cavity 3. The receiving cavity 3 is formed on the bearing frame 11 and is used to receive the first end of the rear door 23.

[0077] refer to Figure 6 , Fig.15 The middle beam 12 includes a mounting portion 15 corresponding to the rear door 23. The mounting portion 15 is used to support and carry the second end of the rear door 23.

[0078] In this embodiment, two ends of the rear door 23 in the length direction are respectively fixed in the accommodating cavity 3 of the bearing frame 11 and the mounting portion of the middle beam 12 to close part of the cabinet opening 17 .

[0079] refer to Figure 3 to Figure 16 The assembly structure may include a slide structure 5 , which is disposed on both sides of the cabinet opening 17 for sliding connection with the front door 21 and the middle door 22 .

[0080] Specifically, the slideway structure 5 includes a middle door slideway 51. The middle door slideway 51 is arranged on the bearing frame 11 and the middle beam 12. The middle door slideway 51 on the bearing frame 11 is located below the accommodating cavity 3, and the middle door slideway 51 on the middle beam is located below the mounting portion, so that the middle door 22 can slide.

[0081] In this embodiment, the middle door 22 is in a straight plate shape, and the middle door slide 51 is a straight slide corresponding to the middle door 22 .

[0082] Specifically, the slideway structure 5 may include a middle front door slideway. The front door slideway is disposed on the bearing frame 11 and the middle beam 12, and the front door slideway is located below the middle door slideway 51 for the front door 21 to slide.

[0083] In this embodiment, the middle beam 12 and the bearing frame 11 are extended along the front-to-back direction, and the middle door slide 51 and the front door slide are extended along the front-to-back direction.

[0084] By configuring the door body 2 to include the front door 21, the middle door 22, and the rear door 23, when the door body 2 opens and closes the cabinet opening 17, the contact area between the front door 21 and the middle door 22 and the slide structure is small, thereby reducing the friction distance between the front door 21 and the middle door 22 and the slide structure, thereby reducing the friction force, making it convenient for the user to push and pull the door body 2 to open and close the cabinet opening 17. When opening and closing the cabinet opening 17, it is only necessary to push and pull the front door 21, which is convenient for the user to exert force and improves the user experience.

[0085] In addition, in this embodiment, the three-door door body 2 for opening and closing the cabinet opening 17 is lighter than the single door body 2 for opening and closing the cabinet opening 17 in the related art, further reducing the friction between the door body 2 and the slide, making it easier for users to open or close the cabinet opening 17.

[0086] In this embodiment, the front door slide may include a first slide 52 and a second slide 53 . The first slide 52 is located below the second slide 53 for the front portion of the front door 21 to slide, and the second slide 53 is for the rear portion of the front door 21 to slide.

[0087] In a direction from top to bottom, the first slideway 52 on the carrying frame 11 protrudes relative to the inner side wall of the carrying frame 11 toward the middle of the cabinet opening 17 .

[0088] Specifically, the first slide 52 on the load-bearing frame 11 protrudes toward the middle of the cabinet opening 17 relative to the inner wall of the load-bearing frame 11, so that the top of the load-bearing frame 11 blocks the accommodating cavity 3, the middle door slide 51 and the second slide 53 on the load-bearing frame 11.

[0089] That is to say, the accommodating cavity 3, the middle door slide 51 and the second slide 53 are embedded in the bearing frame 11, referring to Figure 7 , Figure 8 This arrangement allows the user to only observe the first slide 52 from top to bottom, reducing the width of multiple slides, that is, reducing the overall width of the carrying frame 11, increasing the display area, and thus avoiding the carrying frame 11 from obstructing the user or customer's line of sight, thereby improving the user or customer's experience.

[0090] refer to Figure 7 In some embodiments of the present application, the assembly structure may include a limiter 6. The limiter 6 is disposed on the middle beam 12, and the limiter 6 can move between a first position and a second position.

[0091] Specifically, when the stopper 6 is in the first position, there is an overlapping area between the stopper 4 and the rear door 23 in the thickness direction of the rear door 23, thereby limiting the movement of the stopper 4 in the thickness direction of the rear door 23. The rear door 23 can be automatically reset to the mounting portion 15 when installed, and the stopper 6 in the first position can prevent the rear door from being thrown out during transportation.

[0092] The limiting member 6 is in the second position, and there is no overlapping area between the limiting member 6 and the rear door 23 .

[0093] Specifically, when the second end of the rear door 23 is placed on the mounting portion 15 , if the limiting member 6 is in the second position, the limiting member 6 will not restrict the movement of the rear door 23 , so that the rear door 23 can move upward along the thickness direction of the rear door 23 .

[0094] By setting the limiting member 6, the second end of the rear door 23 is limited at the first position and the limiting member 6 is released at the second position. The door body can be disassembled and assembled simply by adjusting the position of the limiting member 6, which is simple and convenient.

[0095] The limit member 6 that can move between the first position and the second position has a simpler structure than the snap connection or screw connection of the limit member in the prior art, and will not cause damage to the mounting portion 15 or the center beam 12. At the same time, the limit member 6 is not easy to be lost, thereby improving the user experience.

[0096] refer to Figure 8 The first slideway 52 protrudes toward the middle of the cabinet opening 17 relative to the second slideway 53 .

[0097] In this embodiment, the first slideway 52 and the second slideway 53 are in a step shape. The middle door 22 is in a straight plate shape, and the middle door slideway 51 is a straight slideway corresponding to the middle door 22.

[0098] The first slide track 52 protrudes relative to the second slide track 53 toward the middle of the cabinet opening 17 , so that the first slide track 52 and the second slide track 53 do not overlap in the thickness direction of the middle door 22 .

[0099] In order to facilitate pushing the front door 21 , a first rolling portion 213 is provided at the front end side of the front door 21 , and the first rolling portion 213 contacts the first slideway 52 .

[0100] A second rolling portion 214 is provided on the rear end side of the front door 21 , and the second rolling portion 214 contacts the second slide rail 53 .

[0101] In some embodiments of the present application, in order to further reduce the width of the bearing frame 11 and the middle beam 12 , the middle door slide 51 is formed into a middle plate shape. The middle door slide 51 and the second slide 53 overlap in the thickness direction of the middle door 22 .

[0102] refer to Figure 8 In this embodiment, the sliding surface of the middle door slide 51 and the sliding surface of the second slide 53 completely overlap in the thickness direction of the middle door 22.

[0103] In some embodiments of the present application, the carrying frame 11 includes a top frame 111 at the top and a support portion 113 below the top frame 111. The accommodating cavity 3 on the carrying frame 11 is formed between the top frame 111 and the support portion 113.

[0104] In the direction from top to bottom, the top frame blocks the support portion 113 to limit the first end of the rear door from moving in the accommodating cavity along the thickness direction of the rear door.

[0105] Continue to refer Figure 8 The second slideway 53 on the load-bearing frame 11 protrudes toward the middle of the cabinet opening 17 relative to the support portion 113 on the load-bearing frame 11 , which can effectively prevent the support portion 113 from interfering with the installation of the middle door 22 .

[0106] In the direction from top to bottom, the top frame 111 blocks the support part 113, the middle door slide 51 and the second slide 53 on the load-bearing frame 11. This setting allows the user to only observe the first slide 52 in this direction, reducing the overall width of the load-bearing frame 11 and increasing the display area.

[0107] Among them, reference Fig. 9 The first rolling part 213 and the second rolling part 214 can be rollers.

[0108] By providing a roller, the front door 21 can roll in the front door slideway through the roller, so that sliding friction is converted into rolling friction, thereby reducing the force required to push the front door 21 and making it convenient for users to open or close the cabinet opening 17.

[0109] In some embodiments of this application, reference Fig. 9 The front door 21 includes a horizontal section 211 and a curved section 212. The horizontal section 211 is connected to the rear end of the curved section 212, and the curved section 212 extends downwardly from the rear to the front.

[0110] Second rolling parts 214 (rollers) are provided on both sides of one end of the horizontal section 211 away from the curved section 212 , and the second slideway 53 is used for the second rolling parts 214 (rollers) to roll.

[0111] Furthermore, first rolling parts 213 (rollers) contacting the first slideway 52 are provided on both sides of one end of the curved end away from the horizontal section 211 .

[0112] The curved section 212 of the front door 21 facilitates the user to observe the items inside the refrigerator from the front side.

[0113] It is understandable that the opening of the curved section 212 faces the interior of the cabinet. In order to improve the aesthetics of the door frame 1 , the front end of the door frame 1 corresponding to the curved portion of the front door 21 is set to be curved.

[0114] In some embodiments of this application, reference Figure 10 to Figure 12 The first slideway 52 is provided with a first limiting portion 54. When the door body 2 closes the cabinet opening 17, the first rolling portion 213 of the front door 21 is clamped on the front side of the first limiting portion 54 to limit the closing position of the front door 21, ensuring that the front door 21 is fully closed. This avoids the problem that the door body 2 is not completely closed when the door body 2 closes the cabinet opening 17 due to the lack of limiting of the front door 21, resulting in air leakage and poor sealing.

[0115] refer to Fig.12 In this embodiment, the first limiting portion 54 is a protrusion. When the door body 2 is completely closed, the first protrusion abuts against the rear side of the first rolling portion 213. The height of the protrusion does not exceed 2 mm. Preferably, the height of the protrusion is 1 mm.

[0116] In some embodiments of the present application, a second limiting portion 55 is provided on the second slide 53. When the door body 2 is in a state of a full cabinet opening 17, the second rolling portion 214 of the front door 21 and the second limiting portion 55 are engaged to limit the opening limit position of the front door 21.

[0117] Among them, reference Fig.11 The second limiting portion 55 is a groove. When the door body 2 opens the cabinet opening 17, the second rolling portion 214 of the front door 21 rolls along the second slideway 53. By providing the groove, the second rolling portion 214 of the front door 21 falls into the groove, and the door body 2 is limited when the cabinet opening 17 is fully opened, so as to prevent the door body 2 from closing due to shaking or uneven ground after the cabinet opening 17 is opened.

[0118] In this embodiment, the depth of the groove is 1.2 mm. The radius of the arc surface of the groove can be 10 mm.

[0119] In order to facilitate the assembly of the door body 2, refer to Fig.14 A notch 511 is provided at the rear end of the middle door slideway 51 on the middle beam 12 , and the notch 511 allows the second rolling portion 214 to penetrate along the thickness direction of the middle door 22 .

[0120] Specifically, in this embodiment, the middle door slide 51 and the second slide 53 completely overlap in the thickness direction of the middle door 22, reducing the width of one slide. When assembling the door body 2, in order to prevent the middle door slide 51 from interfering with the installation of the front door 21, a notch 511 is provided at its rear end so that the second rolling portion 214 can pass through the notch 511 to achieve the installation of the front door 21.

[0121] The thickness direction of the middle door 22 and the thickness direction of the rear door 23 described herein are both the up-and-down directions of the refrigerator, that is, the vertical directions.

[0122] Of course, in some other embodiments, the middle door slide 51 may be stepped, and the first slide 52 may protrude relative to the middle door slide 51 toward the middle of the cabinet opening 17 to prevent the middle door slide 51 from interfering with the installation of the front door 21 .

[0123] refer to Fig.15 In some embodiments of the present application, the first slide 52 is a lifting slide. The lifting slide is provided so that when the curved section 212 of the front door 21 slides on the first slide 52 to open the cabinet opening 17, the front end of the curved section 212 is tilted and lifted upward.

[0124] That is to say, the front end of the front door 21 when the cabinet opening 17 is open is tilted upward and raised to a certain height relative to the front door 21 when the cabinet opening 17 is closed, so as to reduce the obstruction and blocking of the cabinet opening 17 by the front door 21, facilitate viewing of items in the cabinet, and avoid the front end of the front door 21 affecting the retrieval of items; at the same time, the volume inside the cabinet is increased to increase the storage capacity of the refrigerator.

[0125] Continue to refer Fig.15 The first slide 52 includes a front slide 521, a middle slide 522 and a rear slide 523 which are connected in sequence from front to rear. The rear slide 523 is higher than the front slide 521, and the middle slide 522 includes two smoothly transitioned arc segments R1 and R2, wherein the arc segment R1 is connected to the rear slide 523, and the arc segment R2 is connected to the front slide 521.

[0126] In this embodiment, the slideway structure 5 includes a middle door slideway 51, a second slideway 53 and a first slideway 52 which are arranged in sequence from top to bottom. The middle door 22 is slidably connected in the middle door slideway 51, the rear side end of the horizontal section 211 is slidably connected in the second slideway 53, and the front side end of the curved section 212 is slidably connected in the first slideway 52.

[0127] When the door body 2 opens the cabinet opening 17, the user pushes the front door 21 backward, so that the first rolling portion 213 (roller) of the front door 21 rolls along the first slide 52. The first rolling portion 213 of the front door 21 rolls along the front slide 521 to the middle slide 522, and passes through the arc segment R2 and the arc segment R1 in sequence, so that the first rolling portion 213 of the front door 21 is smoothly lifted to a certain height and then rolls to the rear slide 523, and continues to move backward along the rear slide 523.

[0128] In this embodiment, the central angle of the arc segment R1 opens downward, and the central angle of the arc segment R2 opens upward. The central angle of the arc segment R1 and the central angle of the arc segment R2 may be the same.

[0129] In some embodiments of the present application, the ratio of the radius of the arc segment R1 to the radius of the arc segment R2 is approximately 1:2.

[0130] In some embodiments of the present application, the ratio of the lifting height of the first slide 52 to the front-to-back depth of the inner container of the cabinet is approximately 1:65.

[0131] It is understandable that the center of gravity of the front door 21 is located between the first rolling portion 213 and the second rolling portion 214. In order to ensure that the downward force of the user when pushing the door causes the front end of the front door 21 to tilt, the center of gravity of the front door 21 should be as close as possible to the center of the distance between the first rolling portion 213 and the second rolling portion 214.

[0132] In some embodiments of the present application, a first blocking block is disposed at one end of the horizontal section 211 away from the curved end, and a second blocking block and a third blocking block are disposed at both ends of the middle door 22 facing the front door 21. The first blocking block is located between the second blocking block and the third blocking block.

[0133] When the front door 21 is pushed to open the cabinet opening 17, the first blocking block contacts the second blocking block, and the first blocking block pushes the second blocking block, so that the middle door 22 moves with the front door 21 to open the cabinet opening 17. When the front door 21 is pulled to close the cabinet opening 17, the first blocking block contacts and pushes the third blocking block, so that the middle door 22 moves with the front door 21 to close the cabinet opening 17.

[0134] In this embodiment, by providing the first blocking block, the second blocking block and the third blocking block, the user can drive the movement of the middle door 22 only by pushing or pulling the front door 21, so that the user can open or close the cabinet opening 17 conveniently.

[0135] Further, the second blocking block is arranged at one end of the lower surface of the middle door 22 close to the rear side of the cabinet. The third blocking block is arranged at one end of the lower surface of the middle door 22 close to the front side of the cabinet.

[0136] In some embodiments of the present application, the carrying frame 11 includes a top frame 111 at the top and a mounting portion 15 below the top frame 111. The accommodating cavity 3 on the carrying frame 11 is formed between the top frame 111 and the supporting portion 113.

[0137] In this embodiment, the second slideway 53 on the bearing frame 11 protrudes toward the middle of the cabinet opening 17 relative to the supporting portion 113 above the second slideway 53 .

[0138] In some embodiments of this application, reference Fig.16 The middle beam 12 includes an appearance member 121 . The appearance member 121 is located at the front side of the mounting portion 15 and protrudes upward relative to the mounting portion 15 .

[0139] The mounting portion 15 is located between the appearance member 121 and the frame. The appearance member 121 cooperates with the frame to restrict the rear door 23 on the mounting portion 15 from moving in the front-rear direction.

[0140] In this embodiment, the appearance member 121 cooperates with the frame to limit the movement of the rear door 23 in the front-to-back direction, the limit member 6 cooperates with the mounting portion 15, and the top frame 111 cooperates with the support portion 113 to limit the movement of the rear door in the thickness direction of the rear door 23.

[0141] In some embodiments of the present application, the second ends of the rear doors 63 on both sides of the middle beam 12 are self-reset on the mounting portion 15. When the stopper 6 is in the first position, the stopper 6 and the two rear doors 23 have overlapping areas in the thickness direction of the rear doors 23.

[0142] In this embodiment, a limiting member 6 is provided to limit the two rear doors 23, so as to facilitate the assembly of the cabinet openings 17 on both sides of the middle beam 12 and the door bodies 2, which is simple and convenient.

[0143] In some embodiments of the present application, the rear door 23 includes a stopper 4 located at the second end.

[0144] Specifically, the rear door includes a rear door panel and a stopper 4, wherein a first end of the rear door panel is disposed in the accommodating cavity 3, and the stopper 4 is disposed at a second end of the rear door panel. When the rear door 23 is assembled, the upper surface of the stopper 4 is substantially flush with the upper surface of the appearance component, and the width of the two stoppers 4 is substantially the same as the width of the appearance component, thereby improving the appearance.

[0145] In this embodiment, there is an overlapping area between the stop member 4 and the rear door plate in the thickness direction of the rear door 23. The limit member 6 limits the stop member 4, thereby limiting the displacement of the rear door 23 in the direction of the rear door 23, thereby ensuring that the rear door 23 will not be flipped upward during the transportation and movement of the refrigerator.

[0146] In this embodiment, the stopper 4 includes a top plate and a side plate. The top plate is opposite to the mounting portion 15 and is spaced apart, and the side plate is connected to one side of the top plate to form an L-shaped structure. The stopper 4 is attached to the rear door panel by 3M adhesive.

[0147] Furthermore, the stopper 4 may include an end side plate connected to a side of the top plate away from the rear frame 14 .

[0148] In this embodiment, the first slideway 52 on the middle beam 12 protrudes toward the middle of the cabinet opening 17 relative to the stopper 4 .

[0149] The first slideway 52 on the middle beam 12 protrudes relative to the stopper 4 toward the middle of the cabinet opening 17 , so that the stopper 4 blocks the accommodating cavity 3 , the middle door slideway 51 and the second slideway 53 on the middle beam 12 .

[0150] In some embodiments of this application, reference Fig.17 , Fig.18The appearance member 121 and one end of the stop member 4 that are close to each other cooperate to form a rotating portion 7 that is recessed downward, and the limiting member 6 is arched and rotatably disposed in the rotating portion 7.

[0151] Specifically, refer to Fig.17 When the stopper 6 is in the second position, the stopper 6 is located in the partially rotating portion 7 on the appearance member 121. This arrangement ensures that the stopper 6 rotated to the second position does not overlap with the partially rotating portion 7 on the stopper 4, thereby allowing the rear door 23 to be directly taken out.

[0152] refer to Fig.18 When the limiting member 6 is in the first position, the limiting member 6 is simultaneously located in the partially rotating portion 7 on the appearance member 121 and the partially rotating portions 7 on the two stoppers 4. This arrangement allows the limiting member 6 rotated to the first position to not overlap with the partially rotating portion 7 on the stoppers 4, thereby limiting the rear door 23.

[0153] In this embodiment, the limiting member 6 may be a bow-shaped knob, which is convenient for the user to rotate to adjust its position.

[0154] In the utility model, the assembly method of the front and rear sliding three-door refrigerator door body and the cabinet opening includes:

[0155] Move the limiting member 6 to the second position;

[0156] Place one end of the front door 21 on the first slide 52 and the second slide 53 on the bearing frame 11, and the other end of the front door 21 rests on the first slide 52 and the second slide 53 on the middle beam 12;

[0157] Place one end of the middle door 22 on the middle door slide 51 on the bearing frame 11, and the other end of the middle door 22 is self-reset on the middle door slide 51 on the middle beam 12;

[0158] The first end of the rear door 23 is placed in the accommodating cavity 3 on the bearing frame 11, and the second end thereof is supported by the mounting portion 15 which is self-reset on the middle beam 12;

[0159] The limiting member 6 is moved to the first position to limit the movement of the rear door 23 in the thickness direction thereof, thereby completing the assembly of the door body 2 .

[0160] In this embodiment, the position of the stopper 6 is adjusted to avoid interference with the assembly of the door body 2. After the stopper 6 is moved to the second position, the front door 21, the middle door 22 and the rear door 23 are assembled in sequence, and then the stopper 6 is moved to the first position to limit and fix the rear door 23. The front door 21, the middle door 22 and the rear door 23 can be assembled by their own weight, which is simple and convenient.

[0161] In some embodiments of the present application, when a notch 511 is provided at the rear end of the middle door slide 51 on the middle beam 12, when the front door 21 is installed in the assembly method, one end of the front door 21 is placed on the first slide 52 and the second slide 53 on the load-bearing frame 11, and the second rolling portion 214 on the other end thereof passes through the notch 511 from top to bottom, and relies on self-reset on the first slide 52 and the second slide 53 on the middle beam 12.

[0162] In this embodiment, the middle door slide 51 and the second slide 53 completely overlap in the thickness direction of the middle door 22, reducing the width of one slide and increasing the display area. When assembling the front door 21, the second rolling portion 214 is directly passed through the notch 511 from top to bottom and placed in the second slide 53 and the first slide 52 of the middle beam 12, so as to avoid interference of the middle door slide 51 with the installation of the front door 21.

[0163] In some embodiments of the present application, a sealing member 8 is connected to the bearing frame 11. The sealing member 8 is used to cover the gap between the front door 21 and the bearing frame 11.

[0164] refer to Fig.19 , Fig. 20 A sealing strip 81 is connected to the side of the sealing member 8 facing the front door 21, and the sealing member 8 is adapted to the shape of the front door 21. In the thickness direction of the front door 21, there is an overlapping area between the sealing member 8 and the end of the front door 21.

[0165] When the door body 2 closes the cabinet opening 17 , the sealing member 8 is located above the front door 21 , and the front door 21 abuts against the sealing strip 81 to seal the gap between the front door 21 and the sealing member 8 .

[0166] In this embodiment, reference Fig. 22 The seal 8 cooperates with the sealing strip 81 to cover the gap between the front door 21 and the bearing frame 11 and the gap between the front door 21 and the seal 8 in the thickness direction of the front door 21, thereby improving the sealing performance between the front door 21 and the bearing frame 11 and reducing the loss of cooling. At the same time, the seal 8 is adapted to the shape of the front door 21, thereby improving the appearance.

[0167] In some embodiments of the present application, a sealing rib 216 is provided at the end of the front door 21 that is slidably connected to the front door slide, and the sealing rib 216 extends downward along the thickness direction of the front door 21 .

[0168] In this embodiment, by providing a downwardly extending sealing rib 216, the sealing rib 216 can intercept the cold energy between the inner side of the front door 21 and the load-bearing frame 11, thereby preventing cold energy leakage and improving the sealing performance.

[0169] In some embodiments of the present application, a sealing air bag 16 is provided on the side of the front frame 13 facing the rear frame 14; when the door body 2 closes the cabinet opening 17, the front door 21 abuts against the sealing air bag 16 to seal the gap between the front door 21 and the front frame 13, thereby improving the sealing effect, reducing the leakage of cold in the cabinet, and improving the refrigeration effect.

[0170] In some embodiments of this application, reference Fig. 20 A connecting portion 9 is provided on the side of the sealing member 8 facing the load-bearing frame 11, a first clamping portion 91 is provided on the connecting portion 9, and a second clamping portion 112 is provided on the load-bearing frame 11. The first clamping portion 91 is adaptively connected to the second clamping portion 112 so that the sealing member 8 can be detachably connected to the load-bearing frame 11, which facilitates the disassembly and replacement of the sealing member 8.

[0171] In this embodiment, the connection part 9 is tightly connected to the bearing frame 11. The bearing frame 11 may be provided with a groove adapted to the connection part 9 to achieve a tight fit between the connection part and the bearing frame. The second clamping part 112 is provided in the groove.

[0172] In this embodiment, the first clamping portion 91 is a buckle, and the second clamping portion 112 is a clamping slot.

[0173] In some embodiments of the present application, at least one center beam 12 is configured. The at least one center beam 12 extends in the front-rear direction so that at least two cabinet openings 17 are formed on the opening frame 1, and at least two door bodies 2 are configured corresponding to the cabinet openings 17.

[0174] At least two door bodies 2 are provided corresponding to the cabinet openings 17, and sliding structures are provided on both sides of the cabinet openings 17. Users can open and close the cabinet openings 17 through multiple door bodies 2. The multiple door bodies 2 can reduce the weight of the front door 21 and the middle door 22 in a single door body 2, thereby reducing the pressure between them and the corresponding slide structure 5, thereby reducing friction, and further facilitating users to push and pull the door body 2 to open and close the cabinet opening 17.

[0175] In this embodiment, the length direction of the middle beam 12 is arranged along the front-to-back direction, and one end of the middle beam 12 connected to the front frame 13 is bent and extended downward, so as to ensure that when the door body 2 closes the cabinet opening 17, the curvature of the middle beam 12 is adapted to the curved section 212 of the front door 21, thereby improving the aesthetics.

[0176] In some embodiments of the present application, when the door body 2 completely closes the cabinet opening 17 , the curvature of the central beam 12 is the same as the curvature of the curved section 212 of the front door 21 .

[0177] In some embodiments of the present application, the slideway structure 5 is provided on both sides of the middle beam 12 facing the two cabinet openings 17. Fig.23A sealing portion 122 is integrally formed on the center beam 12 , and in the thickness direction of the front door 21 , there is an overlapping area between the sealing portion 122 and the end of the front door 21 .

[0178] When the door body 2 closes the cabinet opening 17, the sealing portion 122 is located above the front door 21. In the thickness direction of the front door 21, there is an overlapping area between the sealing portion 122 and the end of the front door 21, so that the sealing portion 122 covers the gap between the front door 21 and the center beam 12, further improving the sealing performance.

[0179] In some embodiments of the present application, a sealing strip 81 is provided on the side of the sealing portion 122 facing the front door 21. When the door body 2 closes the cabinet opening 17, the front door 21 abuts against the sealing strip 81 to seal the gap between the front door 21 and the sealing portion 122 to prevent cold leakage.

[0180] In some embodiments of this application, reference Fig.24 The side wall of the rear door 23 facing the middle door 22 is provided with a first sealing strip 231. Specifically, the first sealing strip 231 is extended along the length direction (left-right direction) of the rear door 23, that is, the length direction of the first sealing strip 231 is perpendicular to the front-rear direction.

[0181] The first sealing strip 231 can be attached to the upper surface of the middle door 22, and the first sealing strip 231 is arranged close to the front end of the middle door 22. When the middle door 22 and the rear door 23 slide relative to each other, the first sealing strip 231 closes the gap between the middle door 22 and the rear door 23, and the first sealing strip 231 can clean the upper surface of the middle door 22.

[0182] In some embodiments of the present application, a second sealing strip 221 is provided on the side wall of the middle door 22 facing the front door 21 , and the second sealing strip 221 is provided close to the front end of the middle door 22 .

[0183] In this embodiment, the second sealing strip 221 is parallel to the first sealing strip 231 and is attached to the lower surface of the middle door 22. When the door body 2 closes the cabinet opening 17, the second sealing strip 221 can seal the gap between the middle door 22 and the front door 21.

[0184] In some embodiments of the present application, a third sealing strip 215 is provided on the side wall of the front door 21 facing the middle door 22 , and the third sealing strip 215 is provided close to the rear end of the front door 21 .

[0185] In this embodiment, the third sealing strip 215 is parallel to the second sealing strip 221, and the third sealing strip 215 is attached to the upper surface of the front door 21. When the door body 2 closes the cabinet opening 17, the third sealing strip 215 can seal the gap between the middle door 22 and the front door 21, or the third sealing strip 215 can cooperate with the second sealing strip 221 to seal the gap between the middle door 22 and the front door 21.

[0186] In some embodiments of the present application, a fourth sealing strip 31 is provided between the rear door 23 and the opening frame 1, and the fourth sealing strip 31 is pressed by the deadweight of the rear door 23. That is, the sealing performance is increased by the deadweight of the rear door 23 to ensure that the sealing performance will not decrease after the sealing strip ages.

[0187] In this embodiment, a fourth sealing strip 31 is disposed between the rear door 23 and the mounting portion 15 , the supporting portion 113 , and the rear frame 14 .

[0188] The rear door 23 is pressed on the fourth sealing strip 31 by its own gravity, and the sealing effect is provided by the gravity squeezing of the rear door 23 and the fourth sealing strip 31. The sealing failure will not be caused by material problems, and the sealing performance is good.

[0189] In some embodiments of the present application, the first slide 52 and the second slide 53 are step-shaped, and universal wheels 217 are provided at both ends of the front door 21. When the front door 21 slides off course, the universal wheels 217 are suitable for contacting the sides between the first slide 52 and the second slide 53 to avoid the door clamping problem, thereby improving the smoothness of pushing the front door 21.

[0190] In some embodiments of the present application, a wear-resistant layer may be provided at the end of the middle door 22 that is slidably connected to the middle door slideway 51. The provision of the wear-resistant layer can significantly reduce friction resistance and improve the smoothness of the middle door 22 when the door is pushed.

[0191] It is understandable that the middle door 22 does not need to be provided with rollers and universal wheels 217, so as to avoid repeated bouncing of the middle door 22 due to too good smoothness, thereby improving the stability of the door body 2. The wear-resistant layer can be made of a polymer wear-resistant material.

[0192] In some embodiments, the specific structures of the first sealing strip 231, the second sealing strip 221, and the third sealing strip 215 include but are not limited to brushes, wool strips, rubber strips, airbag sealing strips, and foam rubber.

[0193] In some embodiments of the present application, the rear door 23 includes a first frame and a first door panel. The first door panel is arranged inside the first frame, and the first sealing strip 231 is arranged on the first frame.

[0194] In some embodiments, the middle door 22 includes a second frame and a second door panel, the second door panel is arranged inside the second frame, and the second sealing strip 221 is arranged on the second frame. The wear-resistant layer can be arranged on the second frame. The second blocking block and the third blocking block can be arranged on the second frame.

[0195] In some embodiments, the front door 21 includes a third frame and a third door panel. The third door panel is disposed inside the third frame, and the third sealing strip 215 is disposed on the third frame.

[0196] The first rolling part 213 and the second rolling part 214 are both rotatably connected to the third frame. The first blocking block can be arranged on the third frame. The sealing rib 216 and the universal wheel 217 can be arranged on the third frame.

[0197] It is understandable that the materials of the first door panel, the second door panel and the third door panel are all light-transmitting materials, so that users can easily observe the goods inside the cabinet. The materials of the first door panel, the second door panel and the third door panel include but are not limited to glass, transparent plastic and transparent resin.

[0198] In some embodiments of this application, continue to refer to Fig.24 A water guide groove 131 is provided on the front frame 13, and the water guide groove 131 is located below the sealed cavity. When the door body 2 closes the cabinet opening 17, the condensed water on the door body 2 will flow from the back to the front, into the water collection groove on the front frame 13, and avoid flowing into the cabinet. A drain port is provided at one end of the water guide groove 131, so that the condensed water in the water guide groove 131 can be discharged to the water receiving box in the compressor room through the drain port, and evaporated by the heat of the compressor, thereby improving the discharge efficiency of the condensed water.

[0199] In some embodiments, the front edge of the cabinet opening 17 is lower than the rear edge of the cabinet opening 17 , so as to facilitate the user to observe the goods inside the cabinet.

[0200] In some embodiments, a handle is provided on the front door 21. The handle facilitates pushing and pulling by the user.

[0201] Through the description of multiple embodiments of the front-to-back sliding three-door refrigerator door body and cabinet opening assembly structure of the utility model, it can be seen that the front-to-back sliding three-door refrigerator door body and cabinet opening assembly structure embodiment of the utility model has at least one or more of the following advantages:

[0202] 1. The cabinet opening 17 is closed by the front door 21, the middle door 22 and the rear door 23, so that the contact area between the front door 21, the middle door 22 and the slide structure 5 is small, reducing friction and making it convenient for users to open. When the user opens or closes the cabinet opening 17, the user can push the front door 21 forward or pull it backward on the front side of the cabinet, which is convenient for the user to exert force, thereby making it convenient for the user to open or close the opening of the cabinet 100, improving the user experience.

[0203] 2. The first slide 52 protrudes relative to the load-bearing frame 11 and the middle beam 12 toward the middle of the cabinet opening 17, so that the user can only observe the first slide 52 from top to bottom, thereby reducing the width of multiple slides, reducing the overall width of the load-bearing frame 11 and the width of the middle beam 12, and increasing the display area, thereby avoiding the middle beam 12 and the load-bearing frame 11 from obstructing the user or customer's line of sight, thereby improving the user or customer's experience.

[0204] 3. By setting a limit member 6 that can move between a first position and a second position, the rear door 23 can be limited or contacted to limit the rear door 23, which facilitates the assembly of the door body 2. The limit member 6 can be movably installed on the central beam 12, is not easy to lose, and improves the user experience.

[0205] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0206] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A front and rear push-pull three-door refrigerator door body and cabinet opening assembly structure, characterized in that: include: The opening frame comprises a frame body and a middle beam, wherein the middle beam is arranged on the frame body so that a cabinet opening is formed on both sides of the middle beam, and the frame body comprises two load-bearing frames arranged opposite to each other; A slide structure is provided on the middle beam and the load-bearing frame on both sides of the cabinet opening; A door body, used to open or close the cabinet opening, the door body comprising a front door, a middle door and a rear door arranged in sequence from front to rear, the front door is located below the middle door, the middle door is located below the rear door, and the front door and the middle door are slidably connected to the slideway structure; An accommodating cavity, formed on the bearing frame, for accommodating the first end of the rear door; The center beam includes a mounting portion, and the mounting portion is used to support the second end of the rear door; A limiting member, disposed on the middle beam and movable between a first position and a second position; When the limiting member is in the first position, there is an overlapping area between the limiting member and the rear door in the thickness direction of the rear door, so as to limit the movement of the rear door in the thickness direction of the rear door; When the limiting member is in the second position, there is no overlapping area between the rear door and the limiting member; Wherein, the limiting member is located above the slide structure, and the slide structure on the middle beam protrudes toward the middle of the cabinet opening relative to the mounting portion.

2. The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure according to claim 1 is characterized in that: The second ends of the rear doors on both sides of the center beam are self-reset on the mounting portion, and when the limiting member is in the first position, there are overlapping areas between the limiting member and the two rear doors in the thickness direction of the rear doors.

3. The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure according to claim 1 is characterized in that: The center beam includes an appearance member, which is located at the front side of the mounting portion and protrudes upward relative to the mounting portion. The mounting portion is located between the appearance member and the frame. The appearance member and the frame are used to limit the movement of the rear door in the front-rear direction.

4. The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure according to claim 3 is characterized in that: The rear door includes a stopper located at the second end, and the appearance member and one end of the stopper that are close to each other cooperate to form a downwardly recessed rotating portion, and the limit member is bow-shaped and rotatably arranged in the rotating portion; when the limit member is in the second position, the limit member is located in the rotating portion on the appearance member.

5. The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure according to claim 1, characterized in that: The slide structure includes a front door slide for the front door to slide and a middle door slide for the middle door to slide. The middle door slide on the middle beam protrudes toward the middle of the cabinet opening relative to the mounting portion, and at least part of the front door slide protrudes toward the middle of the cabinet opening relative to the middle door slide.

6. The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure according to claim 5, characterized in that: The front door slide includes a first slide and a second slide, the first slide is located below the second slide and protrudes toward the middle of the cabinet opening relative to the second slide, rollers are arranged on both sides of the rear of the front door, the first slide is for the front of the front door to slide, and the second slide is for the rollers to roll.

7. The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure according to claim 6, characterized in that: The second slide is a sliding step, the middle door slide is in the shape of a straight plate, and the middle door slide and the second slide in the same slide structure overlap in the thickness direction of the middle door.

8. The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure according to claim 7, characterized in that: A notch is arranged at the rear end of the middle door slideway on the middle beam, and the roller passes through the notch in a vertical direction.

9. The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure according to any one of claims 6 to 8, characterized in that: The middle door and the rear door are of straight plate structure, the front door includes a horizontal section and a curved section, the horizontal section is connected to the rear end of the curved section, the curved section extends downwardly from the back to the front, the horizontal section is rollingly connected to the second slide through the roller, and the curved section is slidably connected to the first slide.

10. The front and rear sliding three-door refrigerator door body and cabinet opening assembly structure according to claim 1, characterized in that: The bearing frame includes a top frame at the top and a support portion below the top frame, and the accommodating cavity is formed between the top frame and the support portion; in a direction from top to bottom, the top frame covers the support portion.

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