Refrigerator

Abstract

The invention relates to a refrigerator, which belongs to the technical field of household equipment and comprises a refrigerator body, a refrigerator liner, an air duct cover plate and an overturning buckle assembly. The refrigerator container is arranged in the refrigerator body, the air duct cover plate is arranged on the rear side wall of the refrigerator container, a clamping part extending backwards is arranged on the edge of the back side of the air duct cover plate in a protruding mode, and a clamping groove is formed in the outer side wall of the clamping part in a concave mode. The overturning buckle assembly comprises a fixing piece and an overturning piece, the fixing piece is arranged on the inner side wall of the refrigerator container, the overturning piece comprises a body and a buckling part, the body is rotationally connected to the fixing piece, and the buckling part is arranged on one side of the body in a protruding mode; a limiting block is convexly arranged on the side wall, facing the body, of the fixing piece; when the air duct cover plate is installed on the rear side wall of the refrigerator container, the clamping part can abut against the body so as to drive the body to rotate relative to the fixing piece in the first direction, and the buckling part can rotate in the first direction to stretch into the clamping groove. The body is connected with the limiting block in a clamped mode, and the air duct cover plate is locked on the rear side wall of the refrigerator container. The technical problem that connection between an existing air duct cover plate and a refrigerator container is not stable enough is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a refrigerator. Background Art

[0002] Refrigerators have become an indispensable household appliance in people's daily lives, as they can refrigerate and freeze items.

[0003] A conventional refrigerator comprises a box body, a box liner arranged in the box body, and an air duct cover plate arranged on the rear side wall of the box liner. A buckle is arranged on the rear side wall of the air duct cover plate, and the buckle is engaged with a slot on the box liner to fix the air duct cover plate on the box liner.

[0004] However, currently, the air duct cover and the refrigerator are assembled with ordinary elastic buckles, and the strength of such elastic buckles is difficult to meet the assembly requirements of the air duct cover and the refrigerator in a strict drop test. The buckles often loosen during the transportation and testing of the refrigerator, causing the air duct cover to separate from the refrigerator. Summary of the invention

[0005] The object of the present invention is to provide a refrigerator to solve the technical problem that the connection between the existing air duct cover and the refrigerator is not stable enough.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, there is provided a refrigerator, comprising: a box body, which forms an outer shell of the refrigerator; a box liner, which is arranged in the box body, and the box liner encloses a refrigeration compartment with a front opening; an air duct cover plate, which is arranged in the refrigeration compartment and is arranged on the rear side wall of the box liner; a clamping portion extending backward is convexly provided at the back edge of the air duct cover plate, and a clamping groove is concavely provided on the outer side wall of the clamping portion; a flip buckle assembly, comprising a fixing member and a flip member, the fixing member is arranged on the inner side wall of the box liner, the flip member is arranged on the fixing member, and is movably arranged on one side of the clamping portion; wherein the flip member comprises a main body and a clamping portion, and the main body rotates Connected to the fixing piece, the buckle portion is protruding from one side of the main body and is arranged at an angle to the main body; a limit block is protruding from the side wall of the fixing piece facing the main body; when the air duct cover is installed on the rear side wall of the box, the clamping portion can abut against the main body to drive the main body to rotate relative to the fixing piece in a first direction, so that the buckle portion rotates in the first direction and extends into the clamping groove; when the air duct cover moves to a first preset position in a direction close to the rear side wall of the box, the main body is clamped with the limit block, so that the buckle portion can be fixed in the clamping groove and the air duct cover is locked on the rear side wall of the box.

[0008] In some embodiments of the present application, the main body includes an abutment portion and a limiting portion that are interconnected, and the abutment portion and the limiting portion are arranged on opposite sides of the snap portion; when the air duct cover is installed on the rear side wall of the box, the end surface of the snap portion facing the rear side wall of the box can squeeze the abutment portion to drive the flip member to rotate in a first direction; after the air duct cover moves to the first preset position, the snap portion is inserted into the slot and abuts against the inner side wall of the slot, and the limiting portion abuts against the limiting block to lock the snap portion in the slot.

[0009] In some embodiments of the present application, a positioning plate is protruded from the fixing member, and the positioning plate extends toward the opening direction of the refrigeration chamber; two positioning plates are provided, and the two positioning plates are arranged opposite to each other at a distance, and the flip member is rotatably connected between the two positioning plates.

[0010] In some embodiments of the present application, the limit block is protruded on the side wall of the positioning plate facing the main body, and a clamping surface is formed on the side of the limit block facing the clamping portion; after the air duct cover plate moves to the first preset position, the clamping surface abuts against a side surface of the limit portion away from the clamping portion.

[0011] In some embodiments of the present application, two limit blocks are provided, and the two limit blocks are symmetrically arranged on opposite side walls of the two positioning plates.

[0012] In some embodiments of the present application, an extrusion slope is formed on the side of the limit block facing away from the clamping surface; when the buckle portion rotates and extends into the clamping slot, the limit portion can abut against the extrusion slope to make the positioning plate bend and deform toward the side away from the limit portion; when the limit portion passes over the limit block, the positioning plate can deform and return to its original position, and make the clamping surface abut against the side of the limit portion away from the clamping portion.

[0013] In some embodiments of the present application, the distance between the two limit blocks is greater than the length of the buckle portion in the direction of the rotation axis of the flip member, and the distance between the two limit blocks is less than the length of the limit portion in the direction of the rotation axis of the flip member; when the flip member rotates, the buckle portion can pass between the two limit blocks; after the buckle portion rotates and extends into the slot, the limit portion can abut against the buckling surface of the limit block.

[0014] In some embodiments of the present application, a rearwardly extending abutment plate is protruded from the back edge of the air duct cover plate, and the abutment plate is arranged opposite to the positioning plate; when the air duct cover plate moves to a second preset position in a direction close to the rear side wall of the box, the abutment plate can abut against the positioning plate, so that the positioning plate is bent and deformed to the side away from the limiting portion, the limiting block is separated from the limiting portion, and the pressure of the limiting block's clamping surface on the limiting portion is released.

[0015] In some embodiments of the present application, the flip buckle assembly also includes a reset member, which is arranged between the flip member and the fixing member, and is used to drive the flip member to rotate in a second direction opposite to the first direction; when the pressure of the clamping surface of the limit block on the limit portion is released, the reset member drives the flip member to rotate in the second direction, and the limit portion of the flip member withdraws from the clamping surface of the limit block; the flip member is switched to a rotatable state; the air duct cover is pulled to move in a direction away from the rear side wall of the box, driving the buckle portion of the flip member to rotate and disengage from the clamping slot.

[0016] In some embodiments of the present application, the flip buckle assembly also includes a connecting shaft, and a connecting portion is protruding from the side of the body away from the buckle portion; the connecting shaft is passed through the connecting portion and the positioning plate, so that the flip member can rotate along the axis of the connecting shaft.

[0017] In some embodiments of the present application, the reset member is a retaining spring, which is arranged on the connecting shaft; a boss is provided on the fixing member, and the boss protrudes toward the connecting shaft; one end of the retaining spring abuts against the boss, and the other end of the retaining spring abuts against the flip member.

[0018] In some embodiments of the present application, a duct mounting groove is recessed on the rear side wall of the box, and the duct cover plate is covered on the duct mounting groove; the flip buckle assembly is arranged on the surrounding side wall of the duct mounting groove.

[0019] It can be seen from the above technical solutions that the embodiments of the present invention have at least the following advantages and positive effects:

[0020] The refrigerator box and the air duct cover of the present embodiment are fixed by a flip buckle assembly, which includes a fixing member and a flip member. The fixing member is arranged on the inner side wall of the box, and the flip member is rotatably connected to the fixing member and movably arranged on one side of the clamping part. The flip member includes a body and a clamping part. The body is rotatably connected to the fixing member. The clamping part is convexly arranged on one side of the body and arranged at an angle with the body. A limit block is convexly arranged on the side wall of the fixing member facing the body.

[0021] When the air duct cover moves to the first preset position in the direction close to the rear side wall of the box, the main body is engaged with the limit block so that the buckle part can be fixed in the slot and the air duct cover is locked on the rear side wall of the box. Compared with the traditional buckle that is engaged by elastic deformation, the flip part in the present application enters the slot by rotation, and the engagement amount between the flip part and the slot is larger, and the engagement is more secure. The limit block set on the fixing part can abut the flip part so that the flip part remains engaged with the slot, and the air duct cover is not easy to fall off, which can meet the assembly requirements of the strict drop test. The flip part will not be damaged due to elastic deformation, which greatly improves the assembly reliability of the box and the air duct cover and the service life of the flip part. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the refrigerator box and the air duct cover after installation.

[0023] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the refrigerator box and air duct cover.

[0024] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the middle box.

[0025] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0026] Figure 5 for Figure 2 Schematic diagram of the three-dimensional structure of the middle air duct cover.

[0027] Figure 6 for Figure 5 Schematic diagram of the rear view of the central air duct cover.

[0028] Figure 7 for Figure 5 Enlarged schematic diagram of point B of the middle air duct cover.

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure when the flip buckle assembly is not engaged with the air duct cover.

[0030] Fig. 9 for Figure 8 Schematic diagram of the three-dimensional structure of the fixing part of the middle flip buckle assembly.

[0031] Fig.10 for Figure 8 Schematic diagram of the three-dimensional structure of the middle flip part.

[0032] Fig.11 It is a schematic diagram of the structure after the flip buckle assembly is snapped into place with the air duct cover.

[0033] Fig.12 for Fig.11 Schematic diagram of the cross section of CC.

[0034] Fig.13 for Figure 1 Front view of the middle box and air duct cover after installation.

[0035] Fig.14 for Fig.13 Schematic cross-section of the middle DD.

[0036] Fig.15 for Fig.14 Schematic diagram of the enlarged structure of E.

[0037] The following are the descriptions of the reference numerals:

[0038] 1. Box liner; 11. Refrigeration compartment; 12. Air duct mounting groove; 121. Mounting position; 2. Air duct cover; 21. Clamping part; 22. Clamping groove; 23. Abutment plate; 24. Protruding rib; 3. Flip buckle assembly; 31. Fixing piece; 311. Positioning plate; 312. Limiting block; 3121. Clamping surface; 3122. Extrusion slope; 313. Boss; 32. Flip piece; 321. Clamping part; 322. Body; 3221. Abutment part; 3222. Limiting part; 323. Connecting part; 33. Connecting shaft; 34. Retaining spring. DETAILED DESCRIPTION

[0039] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the description of this application, 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected 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 this application can be understood according to specific circumstances.

[0043] At present, the air duct cover and the refrigerator are assembled with ordinary elastic buckles, which are difficult to meet the assembly requirements of the air duct cover and the refrigerator in a strict drop test. The buckles often loosen during the transportation and testing of the refrigerator, causing the air duct cover to separate from the refrigerator.

[0044] Based on the above technical problems, the inventor provides a refrigerator, which fixes the air duct cover 2 on the box 1 through a flip buckle assembly 3, so that the connection between the box 1 and the air duct cover 2 is more stable and it is also easier to disassemble the air duct cover 2 and the box 1.

[0045] It should be understood that in this embodiment, the working state of the refrigerator placed on the ground is used as a reference, the opening direction of the refrigeration chamber 11 of the box 1 is the front, and the opening direction of the refrigeration chamber 11 away from the box 1 is the back. The side of the refrigerator facing the ground is the bottom, and the side away from the ground is the top.

[0046] Figure 1 It is a schematic diagram of the three-dimensional structure of the refrigerator box 1 and the air duct cover plate 2 after installation; Figure 2 for Figure 1 Schematic diagram of the exploded structure of the refrigerator box 1 and the air duct cover 2.

[0047] See also Figure 1 and Figure 2 The refrigerator of this embodiment includes a box body (not shown in the figure), a box 1, an air duct cover plate 2 and a flip buckle assembly 3. The flip buckle assembly 3 is arranged on the inner side wall of the box 1 and is used to fix the air duct cover on the rear side wall of the box 1.

[0048] In some embodiments, the box body forms the outer shell of the refrigerator, and the interior thereof forms a receiving cavity to receive other components. The box body is generally in the shape of a rectangular cylinder, and a rotating door is provided on the front side thereof, and the door can open or close the receiving cavity in the box body.

[0049] See also Figure 1 and Figure 2 In this embodiment, the box liner 1 is arranged in the accommodating cavity of the box body, and the box liner 1 encloses a refrigerating chamber 11 with a front opening. The opening of the refrigerating chamber 11 is directly opposite to the door of the box body, so that the door can close or open the refrigerating chamber 11. When the door of the box body is closed, it just covers the opening of the refrigerating chamber 11, so that the refrigerating chamber 11 can form a closed storage space to store various items.

[0050] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the middle box 1; Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0051] See also Figure 3 In this embodiment, a duct installation groove 12 is recessed on the rear side wall of the box 1 for installing the duct cover plate 2. The duct cover plate 2 is covered on the duct installation groove 12 to close the opening of the duct installation groove 12, so that a cooling duct is formed between the rear side wall of the duct cover plate 2 and the duct installation groove 12. The cooling duct can transport the cooling airflow to the refrigeration compartment 11, so that the refrigeration compartment 11 is kept in a low temperature environment.

[0052] Please continue reading Figure 3 In this embodiment, a mounting position 121 is recessed on the peripheral side wall of the air duct mounting groove 12 for fixing the flip buckle assembly 3 so that the flip buckle assembly 3 can be fixed on the peripheral side wall of the air duct mounting groove 12 of the box 1.

[0053] In this embodiment, a plurality of flip buckle components 3 are evenly spaced on the peripheral side walls of the air duct installation groove 12, so that the installation and rotation of the air duct cover plate 2 and the box 1 are more stable.

[0054] See also Figure 4 In this embodiment, the flip buckle assembly 3 includes a fixing member 31 and a flip member 32. The fixing member 31 is fixedly arranged on the mounting position 121 of the air duct mounting groove 12, and the flip member 32 is rotatably connected to the fixing member 31 and can rotate relative to the fixing member 31.

[0055] The fixing member 31 and the air duct groove installation position 121 of the box 1 can be fixed by bonding or clamping. The flip buckle assembly 3 is fixed to the box 1 by fixing the fixing member 31 and the air duct installation groove 12. The fixing method is simple and does not require a major change in the structure of the box 1.

[0056] It is conceivable that the fixing member 31 can be integrally formed with the box 1 , that is, the flip member 32 can be directly rotatably connected to the inner wall of the box 1 to achieve fixation of the flip member 32 and the box 1 .

[0057] Please continue reading Figure 4 In this embodiment, the flip member 32 includes a body 322 and a buckle portion 321. The body 322 is rotatably connected to the fixing member 31. The buckle portion 321 is convexly arranged on one side of the body 322 and is arranged at an angle with the body 322. A limit block 312 is convexly arranged on the side wall of the fixing member 31 facing the body 322. The limit block 312 is located on one side of the axial direction of the body 322 and is used to abut against the body 322 of the flip member 32.

[0058] It is important to understand that Figure 4 The position of the flip member 32 shown is the initial position when it is not connected to the air duct cover plate 2.

[0059] Figure 5 for Figure 2 A schematic diagram of the three-dimensional structure of the middle air duct cover plate 2; Figure 6 for Figure 5 A schematic rear view of the middle air duct cover plate 2; Figure 7 for Figure 5 An enlarged schematic diagram of point B of the middle air duct cover plate 2.

[0060] See also Figures 5 to 7 In this embodiment, a clamping portion 21 extending backward is convexly provided at the back edge of the air duct cover plate 2, and a clamping groove 22 is concavely provided on the outer side wall of the clamping portion 21.

[0061] Specifically, Figure 7 As shown, the air duct cover plate 2 includes a plate body and a convex rib 24 arranged around the outer edge of the back side of the plate body. When the air duct cover plate 2 is installed in the air duct mounting groove 12 of the box 1, the convex rib 24 of the air duct cover plate 2 abuts against the side wall of the air duct mounting groove 12. A plurality of clamping parts 21 are arranged on the convex rib 24 at intervals and correspond to the position of the flip buckle assembly 3 fixed on the box 1. A clamping groove 22 is concavely provided on the outer side wall of the clamping part 21 facing the flip buckle assembly 3. The clamping groove 22 is used to cooperate with the flip member 32 of the flip buckle assembly 3 to fix the air duct cover plate 2 on the rear side wall of the box 1.

[0062] When the air duct cover plate 2 moves toward the rear side wall of the box 1 to be installed on the rear side wall of the box 1, the rear end surface of the clamping portion 21 of the air duct cover plate 2 can squeeze the body 322 of the flip member 32 to drive the body 322 to rotate in the first direction, and make the buckle portion 321 on the body 322 rotate in the first direction and extend into the slot 22. When the air duct cover plate 2 moves to the first preset position in the direction close to the rear side wall of the box 1, the body 322 of the flip member 32 is clamped with the limit block 312 on the fixing member 31, and the buckle portion 321 is fixed in the slot 22, locking the air duct cover plate 2 on the rear side wall of the box 1.

[0063] It should be understood that the first preset position referred to in this embodiment refers to the position of the air duct cover plate 2 in the refrigeration compartment 11 when the air duct cover plate 2 and the cabinet 1 are fixed to each other. The first direction referred to in this embodiment is the rotation direction of the buckle portion 321 of the flip member 32 from a state perpendicular to the rear side wall of the cabinet 1 to a state parallel to the rear side wall of the cabinet 1.

[0064] In this embodiment, the flip member 32 rotates into the slot 22, so that the flip member 32 and the slot 22 can be engaged with each other more and the engagement is more secure. In addition, the limit block 312 provided on the fixing member 31 abuts against the flip member 32, so that the flip member 32 is kept engaged with the slot 22, and the air duct cover plate 2 is not easy to fall off, which can meet the assembly requirements of the strict drop test. The flip member 32 will not be damaged due to elastic deformation, which greatly improves the assembly reliability of the box 1 and the air duct cover plate 2 and the service life of the flip member 32.

[0065] Figure 8 It is a schematic diagram of the three-dimensional structure when the flip buckle assembly 3 is not engaged with the air duct cover plate 2; Fig. 9 for Figure 8 A schematic diagram of the three-dimensional structure of the fixing member 31 of the middle flip buckle assembly 3; Fig.10 for Figure 8 A schematic diagram of the three-dimensional structure of the middle flip member 32; Fig.11 It is a schematic diagram of the structure after the flip buckle assembly 3 is clamped with the air duct cover plate 2; Fig.12 for Fig.11 Schematic diagram of the cross section of CC.

[0066] See also Figure 8 and Fig.10 In this embodiment, the main body 322 includes an abutting portion 3221 and a limiting portion 3222 that are connected to each other, and the abutting portion 3221 and the limiting portion 3222 are respectively arranged on two opposite sides of the buckle portion 321.

[0067] Specifically, the buckle portion 321 is vertically connected to one end of the body 322, and the abutment portion 3221 and the limit portion 3222 are respectively arranged on both sides of the buckle portion 21 to form a T-shaped structure. In this embodiment, a stiffening plate is further arranged between the buckle portion 321 and the body 322, and the stiffening plate is located at the connection between the body 322 and the buckle portion 321. The stiffening plate makes the connection between the buckle portion 321 and the body 322 more stable, and can further improve the bearing capacity of the buckle portion 321.

[0068] When the air duct cover plate 2 is not installed with the box 1, the flip buckle assembly 3 is as follows Figure 8 shown.

[0069] When the air duct cover plate 2 moves toward the rear side wall of the box 1, the end surface of the clamping portion 21 of the air duct cover plate 2 facing the rear side wall of the box 1 can press the abutment portion 3221 of the flip member 32 to drive the flip member 32 to rotate in the first direction. Fig.11 and Fig.12 At this time, the buckle portion 321 of the flip member 32 is inserted into the slot 22 and abuts against the inner wall of the slot 22, and the limiting portion 3222 of the flip member 32 abuts against the limiting block 312 on the fixing member 31, locking the buckle portion 321 in the slot 22, thereby locking the air duct cover plate 2 to the rear wall of the box 1.

[0070] See also Figure 8 and Fig. 9 In this embodiment, a positioning plate 311 is protruding from the fixing member 31, and the positioning plate 311 extends toward the opening direction of the refrigeration compartment 11. Two positioning plates 311 are provided on each fixing member 31, and the two positioning plates 311 are arranged opposite to each other at an interval, so that the flip member 32 can be rotatably connected between the two positioning plates 311.

[0071] Specifically, the fixing member 31 is L-shaped, and its outer side is connected and fixed to the mounting position 121 of the air duct mounting groove 12 of the box 1, so that the fixing member 31 is fixed to the inner wall of the box 1. Two positioning plates 311 are convexly provided on the inner side of the fixing member 31, and a gap is formed between the two positioning plates 311. The flip member 32 is rotatably connected in the gap between the two positioning plates 311.

[0072] See also Fig. 9 and Fig.11 A limiting block 312 is provided on the side wall of the positioning plate 311 facing the body 322 of the flip member 32, and the limiting block 312 protrudes toward the flip member 32 to form a clamping surface 3121 facing the clamping portion 21 on the air duct cover plate 2. The clamping surface 3121 can be used to abut against the body 322 of the flip member 32 to fix the flip member 32 in the clamping slot 22.

[0073] like Fig.12 As shown, when the air duct cover plate 2 moves to the first preset position, the engaging surface 3121 on the limiting block 312 can abut against a side surface of the limiting portion 3222 away from the engaging portion 21 to fix the buckle portion 321 of the flip member 32 in the engaging slot 22 .

[0074] See also Fig. 9 and Fig.11 The limiting block 312 forms an extrusion slope 3122 on the side away from the clamping surface 3121 , and the extrusion slope 3122 is used to be extruded with the limiting portion 3222 of the flip member 32 so that the limiting portion 3222 of the flip member 32 can pass over the limiting block 312 .

[0075] like Fig.11 and Fig.12 As shown, when the buckle portion 321 of the flip member 32 rotates and extends into the card slot 22, the limit portion 3222 of the flip member 32 can abut against the extrusion inclined surface 3122, so that the two positioning plates 311 are bent and deformed toward the side away from the limit portion 3222. After the limit portion 3222 passes over the limit block 312, the positioning plate 311 can be deformed and reset, and the clamping surface 3121 of the limit block 312 abuts against the side of the limit portion 3222 away from the clamping portion 21.

[0076] The clamping surface 3121 and the inner side wall of the positioning plate 311 are perpendicular to each other, and the extrusion inclined surface 3122 gradually inclines toward the clamping surface 3121 along a direction away from the inner side wall of the positioning plate 311 to form an inclined surface with a slope.

[0077] Furthermore, the distance between the two limit blocks 312 is greater than the length of the buckle portion 321 in the direction of the rotation axis of the flip member 32; when the flip member 32 rotates, the buckle portion 321 can pass between the two limit blocks 312. The distance between the two limit blocks 312 is less than the length of the limit portion 3222 in the direction of the rotation axis of the flip member 32; when the buckle portion 321 rotates and extends into the slot 22, the limit portion 3222 can abut against the clamping surface 3121 of the limit block 312.

[0078] In this embodiment, two limit blocks 312 are provided, and the two limit blocks 312 are symmetrically arranged on opposite side walls of the two positioning plates 311 , so that the limit blocks 312 can better abut against the limit portions 3222 of the flip member 32 .

[0079] It should be noted that the limiting block 312 may also be disposed only on the inner wall of one positioning plate 311 , and also completes the abutment against the flip member 32 .

[0080] It should be noted that, instead of providing the positioning plate 311, a groove may be directly provided on the fixing member 31, and the flip member 32 may be provided on the opposite surface of the groove of the fixing member 31, so as to fix the flip member 32 to the fixing member 31. In this case, the limit block 312 on the fixing member 31 is provided on the side wall of the groove, and the limit block 312 is formed of a deformable material such as rubber.

[0081] Fig.13 for Figure 1 Front view of the middle box 1 and the air duct cover 2 after installation; Fig.14 for Fig.13 Schematic cross section of the middle DD; Fig.15 for Fig.14 Schematic diagram of the enlarged structure at E in the middle.

[0082] See also Figures 11 to 15 In this embodiment, the flip buckle assembly 3 also includes a reset member, one end of which abuts against the flip member 32, and the other end abuts against the fixing member 31 to provide a reset force for the flip member 32, so that the flip buckle assembly 3 is kept in the state as shown in the figure without being subjected to external force. Figure 8 Status shown.

[0083] For details, please refer to Fig.10 and Fig.11 A connecting portion 323 is convexly provided on one side of the body 322 of the flip member 32 away from the buckle portion 321. The connecting portions 323 are respectively arranged on both sides of the body 322 to form a receiving groove for receiving part of the reset member.

[0084] The connecting portion 323 is provided with a through hole, which corresponds to the through hole on the positioning plate 311 . The connecting shaft 33 passes through the through hole of the connecting portion 323 and the through hole of the positioning plate 311 , so that the flip member 32 is rotatably connected between the two positioning plates 311 .

[0085] In this embodiment, the reset member is a clip 34 , which is passed through the connecting shaft 33 and is located between the two connecting parts 323 of the body 322 .

[0086] like Fig. 9 As shown, a boss 313 is further provided between the two positioning plates 311 of the fixing member 31 of this embodiment, and the boss 313 protrudes toward the direction of the connecting shaft 33. One end of the clamping spring 34 inserted on the connecting shaft 33 can abut against the boss 313 of the fixing member 31, and the other end of the clamping spring 34 abuts against the body 322 of the flip member 32. The clamping spring 34 uses its own elasticity to rotate and reset the flip member 32.

[0087] It is conceivable that the reset member may also be a spring, as long as it can be connected between the fixing member 31 and the flip member 32 to keep the flip member 32 in the initial state without being subjected to external force.

[0088] See also Figure 7 and Fig.15 A rearwardly extending abutment plate 23 is protruding from the back edge of the air duct cover plate 2 , and the abutment plate 23 is arranged opposite to the positioning plate 311 .

[0089] Specifically, Figure 7 and Figure 8 As shown, there are two abutment plates 23, which correspond to the two positioning plates 311 on the fixing member 31. The opposite ends of the abutment plates 23 and the positioning plates 311 are both provided with chamfered surfaces. When the abutment plates 23 follow the air duct cover plate 2 to move to the second preset position in the direction close to the rear side wall of the box 1, the abutment plates 23 abut against the positioning plates 311, and the chamfered surfaces on the abutment plates 23 squeeze the two positioning plates 311 from the inside, so that the two positioning plates 311 bend and deform toward the side away from the limiting portion 3222; driving the distance between the two limiting blocks 312 to become farther. At this time, the clamping surface 3121 of the limiting block 312 releases the abutment against the limiting portion 3222 of the flip member 32.

[0090] In this state, the reset member can drive the flip member 32 to rotate a small angle in the second direction, so that the limit portion 3222 of the flip member 32 withdraws from the locking surface 3121 of the limit block 312, and the flip member 32 switches to a rotatable state. Then, the air duct cover 2 is pulled away from the rear side wall of the box 1, and the buckle portion 321 of the flip member 32 can be driven to disengage from the locking slot 22, thereby realizing the disassembly of the air duct cover 2.

[0091] The abutment plate 23 is used to press the positioning plate 311 to release the abutment of the clamping surface 3121 on the flip member 32, and then the restoring force of the clamping spring 34 is used to make the limit portion 3222 of the flip member 32 withdraw from the clamping surface 3121 to release the locking state of the flip member 32. The air duct cover plate 2 is disassembled by this structure, and its disassembly method is simple and convenient. It only needs to push the air duct cover plate 2 toward the rear side to the second preset position to release the lock of the air duct cover plate 2. Compared with the traditional hard pulling disassembly of the air duct cover plate 2, the cooperation of the abutment plate 23, the positioning plate 311 and the clamping spring 34 will not scratch the inner side wall of the box 1, making the disassembly of the air duct cover plate 2 of the refrigerator more convenient and also convenient for maintenance personnel.

[0092] See also Figure 4 , Figure 7 and Fig.15 This embodiment also provides a method for installing and removing the air duct cover plate 2, and the steps are as follows:

[0093] S10, when installing the air duct cover plate 2: push the air duct cover plate 2 to move toward the air duct installation groove 12 on the rear side wall of the box 1. At this time, the rear end surface of the clamping portion 21 on the air duct cover plate 2 abuts against the abutting portion 3221 of the flip member 32, so as to drive the flip member 32 to rotate in the first direction (in the first direction). Fig.15 , the first direction is counterclockwise).

[0094] During this process, the limit portion 3222 of the flip member 32 abuts against the extrusion slope 3122 of the limit block 312 and moves along the extrusion slope 3122, causing the two positioning plates 311 to deform and move away from each other. When the air duct cover 2 moves to the first preset position, the limit portion 3222 of the flip member 32 passes over the limit block 312, and the positioning plate 311 recovers its deformation. At this time, the buckle portion 321 of the flip member 32 extends into the card slot 22, and the limit portion 3222 abuts against the card surface 3121 of the limit block 312. Fig.15 As shown, the air duct cover plate 2 is fixed to the box 1.

[0095] S20, when the air duct cover plate 2 is disassembled: push the air duct cover plate 2 to continue to move toward the rear side wall of the box 1. At this time, the abutting plate 23 on the air duct cover plate 2 will press the positioning plate 311, so that the two positioning plates 311 are deformed, and drive the limiting blocks 312 thereon to move away from each other, so that the clamping surface 3121 of the limiting block 312 and the limiting portion 3222 of the flip member 32 are out of contact.

[0096] At this time, a restoring force is generated on the clamping spring 34, causing the flip member 32 to move toward the second direction ( Fig.15 The flip member 32 is rotated by a small angle (in the clockwise direction) to make the limiting portion 3222 of the flip member 32 withdraw from the clamping surface 3121 of the limiting block 312. The flip member 32 is in a state of not being locked by the limiting block 312.

[0097] Finally, pull the air duct cover 2 to move it from the second preset position toward the direction away from the rear side wall of the box 1. The inner side surface of the slot 22 of the air duct cover 2 presses the buckle part 321 of the flip member 32 to make the flip member 32 rotate in the second direction. The buckle part 321 gradually withdraws from the slot 22 to complete the disassembly of the air duct cover 2.

[0098] In summary, the refrigerator box 1 and the air duct cover plate 2 of the present embodiment are fixed by the flip buckle assembly 3. Compared with the traditional buckle that is connected by elastic deformation, the flip member 32 in the present embodiment enters the card slot 22 by rotation, and the engagement amount between the flip member 32 and the card slot 22 is larger, and the card connection is more secure. The limit block 312 set on the fixing member 31 can abut the flip member 32, so that the flip member 32 maintains the card connection with the card slot 22, and the air duct cover plate 2 is not easy to fall off, which can meet the assembly requirements of the strict drop test. The flip member 32 will not be damaged due to elastic deformation, which greatly improves the assembly reliability of the box 1 and the air duct cover plate 2 and the service life of the flip member 32.

[0099] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A refrigerator, characterized in that: include: a cabinet, which forms the outer shell of the refrigerator; A box liner is arranged in the box body, and the box liner encloses a refrigeration chamber with an opening at the front end; The air duct cover is arranged in the refrigeration room and on the rear side wall of the box; a clamping portion extending backward is convexly provided on the back edge of the air duct cover, and a clamping groove is concavely provided on the outer side wall of the clamping portion; The flip buckle assembly comprises a fixing part and a flip part, wherein the fixing part is arranged on the inner side wall of the box liner, and the flip part is arranged on the fixing part and movably arranged on one side of the clamping part; Wherein, the flip member comprises a body and a buckle portion, the body is rotatably connected to the fixing member, the buckle portion is convexly arranged on one side of the body and arranged at an angle with the body; a limit block is convexly arranged on the side wall of the fixing member facing the body; When the air duct cover is installed on the rear side wall of the box, the clamping portion can abut against the body to drive the body to rotate relative to the fixing member along the first direction, so that the buckle portion rotates along the first direction and extends into the clamping groove; When the air duct cover moves to a first preset position in a direction close to the rear side wall of the box, the body is engaged with the limit block so that the buckle portion can be fixed in the slot and the air duct cover is locked on the rear side wall of the box.

2. The refrigerator according to claim 1, characterized in that: The body comprises an abutment portion and a limiting portion connected to each other, wherein the abutment portion and the limiting portion are arranged on opposite sides of the buckle portion; When the air duct cover is installed on the rear side wall of the box, the end surface of the clamping portion facing the rear side wall of the box can press the abutting portion to drive the flip member to rotate in the first direction; After the air duct cover moves to the first preset position, the buckle portion is inserted into the slot and abuts against the inner wall of the slot, and the limiting portion abuts against the limiting block to lock the buckle portion in the slot.

3. The refrigerator according to claim 2, characterized in that: A positioning plate is protruded from the fixing member, and the positioning plate extends toward the opening direction of the refrigeration compartment; two positioning plates are provided, and the two positioning plates are arranged opposite to each other at an interval, and the flip member is rotatably connected between the two positioning plates.

4. The refrigerator according to claim 3, characterized in that: The limiting block is convexly arranged on the side wall of the positioning plate facing the main body, and a side of the limiting block facing the clamping portion forms a clamping surface; After the air duct cover plate moves to the first preset position, the clamping surface abuts against a side surface of the limiting portion away from the clamping portion.

5. The refrigerator according to claim 4, characterized in that: There are two limit blocks, and the two limit blocks are symmetrically arranged on the opposite side walls of the two positioning plates.

6. The refrigerator according to claim 5, characterized in that: A side of the limit block facing away from the clamping surface forms an extrusion slope; When the buckle portion rotates and extends into the slot, the limiting portion can abut against the extrusion slope, so that the positioning plate is bent and deformed toward a side away from the limiting portion; When the limiting portion passes over the limiting block, the positioning plate can be deformed and reset, and the clamping surface abuts against a side of the limiting portion away from the clamping portion.

7. The refrigerator according to claim 6, characterized in that: The distance between the two limit blocks is greater than the length of the buckle portion in the rotation axis direction of the flip member, and the distance between the two limit blocks is less than the length of the limit portion in the rotation axis direction of the flip member; When the flip member rotates, the buckle portion can pass between the two limit blocks; after the buckle portion rotates and extends into the slot, the limit portion can abut against the clamping surface of the limit block.

8. The refrigerator according to claim 7, characterized in that: A rearwardly extending abutment plate is protruding from the back edge of the air duct cover plate, and the abutment plate is arranged opposite to the positioning plate; When the air duct cover moves to a second preset position toward the rear side wall of the box, the abutment plate can abut against the positioning plate, causing the positioning plate to bend and deform toward the side away from the limiting portion, and the limiting block is separated from the limiting portion, and the pressure of the limiting block's clamping surface on the limiting portion is released.

9. The refrigerator according to claim 8, characterized in that: The flip buckle assembly further includes a reset member, which is disposed between the flip member and the fixing member, and is used to drive the flip member to rotate in a second direction opposite to the first direction; When the pressure of the locking surface of the limit block on the limit portion is released, the reset member drives the flip member to rotate in the second direction, and the limit portion of the flip member withdraws from the locking surface of the limit block; the flip member is switched to a rotatable state; the air duct cover is pulled to move in the direction away from the rear side wall of the box, driving the buckle portion of the flip member to rotate and disengage from the slot.

10. The refrigerator according to claim 9, characterized in that: The flip buckle assembly also includes a connecting shaft, and a connecting portion is protruding from the side of the body away from the buckle portion; the connecting shaft passes through the connecting portion and the positioning plate, so that the flip member can rotate along the axis of the connecting shaft.

11. The refrigerator according to claim 10, characterized in that: The reset member is a retaining spring, which is arranged on the connecting shaft; a boss is arranged on the fixing member, which protrudes toward the connecting shaft; one end of the retaining spring abuts against the boss, and the other end of the retaining spring abuts against the flip member.

12. The refrigerator according to claim 1, characterized in that: An air duct installation groove is recessed on the rear side wall of the box, and the air duct cover plate is covered on the air duct installation groove; the flip buckle assembly is arranged on the peripheral side wall of the air duct installation groove.

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