Shelf and refrigerator

Abstract

The invention provides a shelf and a refrigerator, and relates to the technical field of refrigerators, the shelf is applied to the refrigerator, the refrigerator is provided with a refrigerator liner, air duct assemblies are embedded in the inner walls of the two sides of the refrigerator liner, the two sides of the shelf are connected with the two air duct assemblies correspondingly, the shelf comprises a rack and a connecting piece, and the connecting piece is connected with the rack. The shelf fixing structure is integrally arranged in the air duct assembly, occupation of the storage space in the refrigerator is reduced, a back air duct is omitted for the side wall air duct assembly, the thickness of the back of the refrigerator body is reduced, the use depth of the storage space is increased, the thickness of the side wall of the refrigerator body is increased for the side wall air duct assembly, and a check block fixed to the side wall of the refrigerator container is omitted. Therefore, the requirement of drawing the drawer when the door is opened at 90 degrees can be met.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a shelf and a refrigerator. Background Art

[0002] Most of the existing air-cooled refrigerators have the air duct assembly arranged on the back of the box, and the air outlets arranged on the front or both sides of the air duct assembly, which has a high degree of modularization and is easy to assemble.

[0003] At the same time, in order to increase the convenience of storage and realize the layered storage of food, most existing refrigerators are equipped with shelves in the box. The two commonly used shelf structures are side wall shelves and cantilever shelves. The side wall shelves are installed by the raised ribs symmetrically arranged on the side wall of the refrigerator liner, which has a simple structure and is easy to assemble; the cantilever shelves are supported and installed by the cantilever structure of the rear wall of the box liner, and the side wall of the box liner has no ribs, and the appearance is simple.

[0004] In existing air-cooled refrigerators, the shelves occupy a large amount of storage space inside the refrigerator, which affects user use. Summary of the invention

[0005] The embodiment of the present application provides a shelf and a refrigerator, in which the shelf fixing structure is integratedly arranged inside the air duct assembly, reducing the storage space occupied inside the refrigerator, and solving the problem of existing air-cooled refrigerators in which the shelves occupy more storage space inside the refrigerator, affecting user use.

[0006] In a first aspect, an embodiment of the present application provides a shelf, which is applied to a refrigerator, wherein the refrigerator has a box liner, and air duct components are embedded in the inner walls of both sides of the box liner, and the two sides of the shelf are respectively connected to the two air duct components, and the shelf includes a shelf and a connector;

[0007] The shelf is a latch shelf, and a plurality of fulcrum rods are provided on both sides of the shelf;

[0008] The connecting member is arranged in the air duct assembly, and the air duct assembly is provided with a plurality of through holes, and the plurality of through holes correspond to the plurality of fulcrum rods one by one;

[0009] The fulcrum rod of the shelf passes through the corresponding through hole and is connected to the connecting piece.

[0010] In a feasible implementation, the shelf is a fixed shelf, the connecting member is a fixed support member, and the through hole is a square through hole;

[0011] The fixed support member is fixed inside the air duct assembly;

[0012] The fulcrum rod of the fixed shelf passes through the corresponding square through hole and is connected to the fixed support member.

[0013] In a feasible implementation, the shelf is an adjustable shelf, the connecting member is a lifting and lowering adjustment component, and the through hole is an L-shaped through hole;

[0014] The lifting and adjusting assembly is fixed inside the air duct assembly;

[0015] The fulcrum rod of the adjustable shelf passes through the corresponding L-shaped through hole and is connected to the lifting and lowering adjustment component.

[0016] In a feasible implementation, the lifting adjustment component includes a sliding adjustment component;

[0017] The sliding adjustment assembly includes a first sliding member and a first fixing member;

[0018] The first sliding member is slidably connected to the first fixing member, and the first fixing member is fixedly connected to the air duct assembly;

[0019] A flange is provided on the side of the first fixing member, a plurality of shelf adjustment holes are provided on the front of the flange, a second fulcrum hole is provided on the front of the first sliding member, and the shelf fulcrum rod passes through the L-shaped through hole and the second fulcrum hole and is connected with the adjustment hole.

[0020] In a feasible implementation, a roller is provided at the rear of the first sliding member, a first limiting groove is provided around the roller, and limiting buckles are provided on the front and rear sides of the first sliding member;

[0021] A first limiting step is provided on the front and rear sides of the first fixing member;

[0022] The first sliding member is slidably connected to the first limiting step through the first limiting groove of the roller, and the limiting buckle is limit-engaged with the first limiting step.

[0023] In a feasible implementation, the lifting and lowering adjustment component includes a damping adjustment component;

[0024] The damping adjustment assembly includes a second sliding member and a second fixing member;

[0025] The second sliding member is slidably connected to the second fixing member, and the second fixing member is fixedly connected to the air duct assembly;

[0026] An adjusting member is arranged on the side of the second fixing member, a plurality of rack adjusting holes are arranged on the front of the adjusting member, a second fulcrum hole is arranged on the front of the second sliding member, and the rack fulcrum rod can pass through the L-shaped through hole and the second fulcrum hole and overlap the adjusting hole.

[0027] In a feasible implementation, a one-way damper is provided at the rear of the second sliding member, a gear is provided on the one-way damper, and second limiting grooves are provided on two side surfaces of the outer side of the second sliding member;

[0028] A rack is disposed on one side of the second fixing member, and second limiting steps are disposed on both the front and rear side surfaces of the second fixing member;

[0029] The second sliding member is installed inside the second fixing member from the upper and lower ends of the second fixing member through the cooperation of the second limiting groove and the second limiting step, and the gear is rollingly connected with the rack.

[0030] In a feasible implementation, both sides of the shelf are provided with toggle members, and the shelf can be extended and retracted laterally by pushing and pulling the toggle members.

[0031] In a feasible implementation, a limit hook is provided at the front of the fulcrum rod, and a third limit step is provided at the back of the second fulcrum hole;

[0032] When the shelf toggle member is pushed, the fulcrum rod shrinks to the limit hook and abuts against the third limit step, the fulcrum rod is separated from the first fixing member and the second fixing member, and the shelf is lifted or pressed down to drive the first sliding member and the second sliding member to adjust up and down.

[0033] In a second aspect, the present application provides a refrigerator comprising a box liner, wherein a storage compartment is formed inside the box liner, and grooves are symmetrically arranged on the inner side wall of the box liner, and the refrigerator further comprises an air duct assembly, wherein the air duct assembly is installed in the groove, and the outer side surface of the air duct assembly is flush with the side wall of the box liner;

[0034] The air duct assembly includes an air duct lining box and an air duct cover plate;

[0035] An air outlet area is arranged in the middle of the air duct liner box, an air inlet is arranged at the bottom of the air outlet area, a plurality of air outlets are arranged on the front of the air duct cover plate, and the air duct cover plate is fixed on the front of the air outlet area of ​​the air duct liner box to enclose an air circulation channel with air inlet at the bottom and air outlet at the front;

[0036] The air duct assembly further comprises a decorative cover plate, which is fixed to the front of the air duct assembly, and an air outlet avoidance hole is arranged on the front of the decorative cover plate, and the front of the air outlet is flush with the front of the air duct cover plate;

[0037] The refrigerator further comprises the above-mentioned shelf assembly, which is arranged between the left and right side wall air duct assemblies inside the storage compartment.

[0038] A shelf and a refrigerator provided in an embodiment of the present application, the shelf is applied to a refrigerator, the refrigerator has a box, and air duct components are embedded in the inner walls of both sides of the box, and the two sides of the shelf are respectively connected to the two air duct components, and the shelf includes a shelf and a connecting piece; the shelf is a latch shelf, and a plurality of fulcrum rods are provided on both sides of the shelf; the connecting piece is arranged in the air duct assembly, and the air duct assembly is provided with a plurality of through holes, and the plurality of through holes correspond to the plurality of fulcrum rods one by one; the fulcrum rods of the shelf pass through the corresponding through holes and are connected to the connecting piece, and the shelf fixing structure provided in the present application is integratedly arranged inside the air duct assembly, which reduces the occupation of the internal storage space of the refrigerator, and the side wall air duct assembly cancels the back air duct, reduces the thickness of the back of the box body, and increases the use depth of the storage space, and the side wall air duct assembly increases the thickness of the side wall of the box body, cancels the block fixed on the side wall of the box, and can meet the demand of drawing and pulling the drawer when the door is opened at 90°. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a schematic diagram of the structure of the shelf assembly provided by the present application;

[0040] Figure 2 is a schematic diagram of a fixed support member and its connection structure;

[0041] Figure 3 It is a schematic diagram of the structure of the shelf;

[0042] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0043] Figure 5 is a first schematic diagram of a shelf assembly;

[0044] Figure 6 is a second schematic diagram of a shelf assembly;

[0045] Figure 7 is a schematic diagram of the structure of the sliding adjustment assembly;

[0046] Figure 8 is a schematic diagram of the structure of the damping adjustment component;

[0047] Fig. 9 It is a first schematic diagram of the rack;

[0048] Fig.10 is a first schematic diagram of a limit hook and its connection structure;

[0049] Fig.11 is a second schematic diagram of the rack;

[0050] Fig.12 is a second schematic diagram of the limit hook and its connection structure;

[0051] Fig.13 is a third schematic diagram of the rack;

[0052] Fig.14 is a third schematic diagram of the limit hook and its connection structure;

[0053] Fig.15 is a schematic diagram of a damping adjustment component and its connection structure;

[0054] Fig.16 It is a structural schematic diagram of the refrigerator provided by the present application;

[0055] Fig.17 It is a schematic diagram of the structure of the box;

[0056] Fig.18 It is a structural schematic diagram of the air duct lining box;

[0057] Fig.19 It is a structural schematic diagram of the air duct cover.

[0058] Description of reference numerals:

[0059] 100-refrigerator, 1-box, 2-storage compartment, 3-air duct assembly, 4-shelf assembly, 11-groove, 31-air duct lining box, 32-air duct cover, 33-decorative cover, 41-shelf, 42-fixed support, 43-sliding adjustment assembly, 44-damping adjustment assembly, 311-air inlet, 321-air outlet, 322-square through hole, 323-L-shaped through hole, 331-avoidance hole, 411-fulcrum rod, 412-sliding member, 421-first fulcrum hole, 431-first sliding member, 432-first fixing member , 433-roller, 434-shock-absorbing pad, 441-second sliding member, 442-second fixing member, 443-one-way damper, 444-adjusting member, 4111-limiting hook, 4311-limiting buckle, 4312-second fulcrum hole, 4313-third limiting step, 4321-first limiting step, 4322-flange, 4323-adjusting hole, 4324-rack disassembly and assembly hole, 4331-first limiting slot, 4411-second limiting slot, 4421-rack, 4422-second limiting step, 4431-gear. DETAILED DESCRIPTION

[0060] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0061] Most of the existing air-cooled refrigerators have the air duct assembly arranged on the back of the box, and the air outlets arranged on the front or both sides of the air duct assembly, which has a high degree of modularization and is easy to assemble.

[0062] At the same time, in order to increase the convenience of storage and realize the layered storage of food, most existing refrigerators are equipped with shelves in the box. The two commonly used shelf structures are side wall shelves and cantilever shelves. The side wall shelves are installed by the raised ribs symmetrically arranged on the side wall of the refrigerator liner, which has a simple structure and is easy to assemble; the cantilever shelves are supported and installed by the cantilever structure of the rear wall of the box liner, and the side wall of the box liner has no ribs, and the appearance is simple.

[0063] In order to meet the requirement that the front of the built-in refrigerator should be flush with the cabinet, the built-in refrigerator is thinner than the traditional non-built-in refrigerator, resulting in a shallower depth of the refrigerator storage space.

[0064] In order to increase the volume ratio of the refrigerator, the thickness of the foam layer on the side wall of the built-in refrigerator body is generally thinner. At the same time, in order to meet the requirement of 90° door opening, blocks need to be installed on both sides of the drawer of the built-in refrigerator, and the appearance of the front of the drawer is not simple enough.

[0065] With the existing side wall shelves, when placing higher items and adjusting the shelf spacing, due to structural limitations, the food needs to be taken out of the shelves, the shelves are taken out of the assembly structure, and after the adjustment is completed, the food needs to be put back on the shelves, which makes the adjustment inconvenient; when the refrigerator is embedded in the cabinet, the shelf cannot be pulled out of the refrigerator due to the door opening angle limitation, and the shelf height cannot be adjusted; due to the need to fix the shelf, the ribs protrude from the side wall of the box liner at a high height, and there are many steps, which is not only unsightly but also does not make use of the blister of the box liner.

[0066] When the existing cantilever shelf is adjusted in height, although the shelf does not need to be taken out of the refrigerator, it is heavy and inconvenient to assemble and disassemble due to the assembly structure.

[0067] The purpose of the present application is to overcome at least one defect in the prior art, to set the air duct back plate on the side wall of the box, and to cancel the air duct assembly on the back of the box, so as to reduce the thickness of the back of the box and increase the depth of the storage space. A further purpose is to increase the thickness of the side wall of the box to meet the installation requirements of the side wall air duct assembly. A further purpose is to cancel the block fixed on the side wall of the box and increase the thickness of the side wall of the box, so as to meet the requirements of the drawer pulling when the door is opened at 90°. A further purpose is to provide a shelf fixing structure, which is integrated and arranged inside the air duct assembly. A further purpose is to provide a shelf lifting and adjusting mechanism, which is provided with multiple adjustment gears, and the limit is released by pushing the toggle position, so as to realize the multi-level adjustment and wide adjustment of the shelf. A further purpose is to provide a shelf lifting and adjusting mechanism, in which a one-way damper is arranged inside the mechanism, and the downward resistance of the damper offsets the weight of the free fall of the shelf, so that the shelf adjustment is easier. A further purpose is to provide a refrigerator using this side wall air duct assembly or this shelf simultaneously or separately.

[0068] The specific structure of the shelf and refrigerator provided in this application is described in detail below in conjunction with the accompanying drawings.

[0069] Reference Figure 1-Figure 15 As shown, the embodiment of the present application provides a shelf 4, which is applied to a refrigerator 100. The refrigerator 100 has a box 1, and both sides of the inner wall of the box 1 are embedded with air duct components 3. The two sides of the shelf 4 are respectively connected to the two air duct components 3, and the shelf 4 includes a shelf 41 and a connector;

[0070] The shelf 41 is a four-pivot latch shelf with side edges, and a plurality of pivot rods 411 are provided on both sides of the shelf 41;

[0071] The connecting member is disposed in the air duct assembly 3, and the air duct assembly 3 is provided with a plurality of through holes, and the plurality of through holes correspond to the plurality of fulcrum rods 411 one by one;

[0072] The fulcrum rod 411 of the shelf 41 passes through the corresponding through hole and is connected to the connecting member.

[0073] Reference Figure 1-Figure 3 As shown, in some embodiments, the rack 41 is a fixed rack, the connecting member is a fixed support member 42, and the through hole is a square through hole 322;

[0074] The fixed support member 42 is fixed inside the air duct assembly;

[0075] The fulcrum rod 411 of the fixed shelf passes through the corresponding square through hole 322 and is connected to the fixed support member 42 .

[0076] Specifically, a first fulcrum hole 421 is provided on the fixed support member 42 , and the fulcrum rod 411 passes through the corresponding square through hole 322 and overlaps with the first fulcrum hole 421 .

[0077] Reference Figure 3-Figure 15 As shown, in some embodiments, the rack 41 is an adjustable rack, the connecting member is a lifting adjustment component, and the through hole is an L-shaped through hole 323;

[0078] The lifting and adjusting assembly is fixed inside the air duct assembly;

[0079] The fulcrum rod 411 of the adjustable shelf passes through the corresponding L-shaped through hole 323 and is connected to the lifting and lowering adjustment component.

[0080] Specifically, the lifting and lowering adjustment assembly includes a sliding adjustment assembly 43;

[0081] The sliding adjustment assembly 43 includes a first sliding member 431 and a first fixing member 432;

[0082] The first sliding member 431 is slidably connected to the first fixing member 432, and the first fixing member 432 is fixedly connected to the air duct assembly;

[0083] A flange 4322 is provided on the side of the first fixing member 432, and a plurality of shelf adjustment holes 4323 are provided on the front of the flange 4322. A second fulcrum hole 4312 is provided on the front of the first sliding member 431. The shelf fulcrum rod 411 passes through the L-shaped through hole 323 and the second fulcrum hole 4312 and is connected with the adjustment hole 4323.

[0084] In some embodiments, a roller 433 is disposed at the rear of the first sliding member 431 , a first limiting groove 4331 is disposed around the roller 433 , and limiting buckles 4311 are disposed on the front and rear sides of the first sliding member 431 .

[0085] The first limiting steps 4321 are arranged on the front and rear sides of the first fixing member 432 .

[0086] The first sliding member 431 is slidably connected to the first limiting step 4321 through the first limiting groove 4331 of the roller 433 , and at the same time, the limiting buckle 4311 is limitedly engaged with the first limiting step 4321 .

[0087] like Figure 8 As shown, in some embodiments, the lift adjustment assembly includes a damping adjustment assembly 44;

[0088] The damping adjustment assembly 44 includes a second sliding member 441 and a second fixing member 442;

[0089] The second sliding member 441 is slidably connected to the second fixing member 442, and the second fixing member 442 is fixedly connected to the air duct assembly;

[0090] A one-way damper 443 is disposed at the rear of the second sliding member 441 , a gear 4431 is disposed on the one-way damper 443 , and second limiting grooves 4411 are disposed on two side surfaces outside the second sliding member 441 .

[0091] A rack 4421 is disposed on one side of the second fixing member 442 , and second limiting steps 4422 are disposed on both the front and rear side surfaces of the second fixing member 442 .

[0092] The second sliding member 441 is installed into the second fixing member 442 from the upper and lower ends of the second fixing member 442 through the cooperation between the second limiting groove 4411 and the second limiting step 4422 . Meanwhile, the gear 4431 is rollingly connected to the rack 4421 .

[0093] Advantageously, when the shelf is raised or lowered, the damping force of the one-way damper gear 4431 rolling downward offsets the deadweight of the shelf.

[0094] An adjusting member 444 is provided on the side of the second fixing member 442 , a plurality of rack adjusting holes 4323 are provided on the front of the adjusting member 444 , a second fulcrum hole 4312 is provided on the front of the second sliding member 441 , and the rack fulcrum rod 411 can pass through the L-shaped through hole 323 and the second fulcrum hole 4312 and overlap with the adjusting hole 4323 .

[0095] A limiting hook 4111 is disposed at the front of the fulcrum rod 411 , and a third limiting step 4313 is disposed at the back of the second fulcrum hole 4312 .

[0096] When the shelf 41 needs to be adjusted, the shelf toggle member 412 is pushed, and the fulcrum rod 411 shrinks until the limit hook 4111 abuts against the third limit step 4313. At the same time, the fulcrum rod 411 is separated from the first fixing member 432 and the second fixing member 442. At this time, the shelf 41 can be lifted up or pressed down to drive the first sliding member 431 and the second sliding member 441 to be adjusted up and down.

[0097] Furthermore, the front side walls of the first fixing member 432 and the lowest adjustment hole on the adjusting member 444 extend forward and are provided as a rack disassembly hole 4324, the width of which is consistent with the width of the bottom of the L-shaped through hole 323, or slightly smaller than the width of the bottom of the L-shaped through hole 323.

[0098] When the shelf 41 needs to be disassembled, first adjust the shelf 41 to the lowest usage position, pull the shelf 41 forward until the front side wall of the fulcrum rod 411 abuts against the front side wall of the shelf disassembly hole 4324, and push the shelf toggle member 412. At this time, the fulcrum rod 411 is not limited by the third limiting step 4313, and the fulcrum rod 411 can be retracted to disengage from the L-shaped through hole 323, and the shelf 41 can be disassembled and assembled.

[0099] Furthermore, since the other adjustment holes above the lowest use position cannot realize the forward pulling action of the shelf 41, the shelf 4 cannot be disassembled.

[0100] Furthermore, shock-absorbing pads 434 are disposed at upper and lower ends of the first fixing member 432 and the second fixing member 442 .

[0101] Advantageously, when the shelf 41 is removed, the symmetrically arranged first sliding member 431 and the second sliding member 441 are both at the same horizontal position under the support of the shock-absorbing pad 434, so that the shelf 41 can be easily assembled again; when the shelf 41 is adjusted to the highest point or the lowest point, the collision noise is eliminated.

[0102] Furthermore, when the shelf 41 is adjusted between the lowest point and the highest point, the first sliding member 431 and the second sliding member 441 can both cover the L-shaped through hole 323 to prevent the internal structure from being exposed.

[0103] Furthermore, if Fig.16 As shown, during the adjustment process of the lowest point and the highest point of the rack 41 , the rack 41 is always located between the upper and lower air outlets 321 , ensuring that there is an air outlet 321 in each layer of the rack 41 .

[0104] Reference Figure 16-Figure 19 As shown, the present application provides a refrigerator, the refrigerator 100 includes a box 1, a storage compartment 2 is formed inside the box 1, and grooves 11 are symmetrically arranged on the inner side wall of the box 1. The refrigerator 100 also includes an air duct assembly 3, the air duct assembly 3 is installed in the groove 11, and the outer side surface of the air duct assembly 3 is flush with the side wall of the box 1;

[0105] The air duct assembly 3 includes an air duct lining box 31 and an air duct cover plate 32;

[0106] The middle of the air duct liner box 31 is provided with an air outlet area, the bottom of the air outlet area is an air inlet 311, and the front of the air duct cover plate 32 is provided with a plurality of air outlets 321. The air duct cover plate 32 is fixed to the front of the air outlet area of ​​the air duct liner box 31, enclosing an air circulation channel with air inlet at the bottom and air outlet at the front;

[0107] The air duct assembly 3 further includes a decorative cover plate 33, which is fixed on the front of the air duct assembly 3. An air outlet avoidance hole 331 is arranged on the front of the decorative cover plate 33, and the front of the air outlet 321 is flush with the front of the air duct cover plate 32.

[0108] The refrigerator 100 further includes the above-mentioned shelf assembly 4, which is disposed between the left and right side wall air duct assemblies 3 inside the storage compartment 2;

[0109] The square through hole 322 and the L-shaped through hole 323 are both disposed on the air duct cover plate 32 .

[0110] The side wall air duct assembly provided in the present application eliminates the rear air duct, reduces the thickness of the back of the box, and increases the usable depth of the storage space.

[0111] The side wall air duct assembly provided in the present application increases the thickness of the side wall of the box body and eliminates the block fixed on the side wall of the box body, thereby meeting the demand for pulling out the drawer when the door is opened at 90°.

[0112] The shelf fixing structure provided in the present application is integratedly arranged inside the air duct assembly, thereby reducing the occupation of storage space inside the refrigerator.

[0113] The shelf lifting and adjusting mechanism provided in the present application is provided with a plurality of adjusting gears, and the multi-level adjustment and width adjustment of the shelf can be realized by pushing the toggle position to release the limit.

[0114] The shelf lifting and adjusting mechanism provided in the present application has a one-way damper disposed inside the mechanism, and the downward resistance of the damper offsets the deadweight of the shelf falling freely, making the shelf adjustment easier.

[0115] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0116] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A shelf, characterized in that: The shelf is applied to a refrigerator, the refrigerator having a box liner, both inner walls of the box liner being embedded with air duct components, the two sides of the shelf being respectively connected to the two air duct components, and the shelf comprising a shelf (41) and a connecting piece; The shelf (41) is a latch shelf, and a plurality of fulcrum rods (411) are provided on both sides of the shelf (41); The connecting member is arranged in the air duct assembly, and the air duct assembly is provided with a plurality of through holes, and the plurality of through holes correspond one to one with the plurality of fulcrum rods (411); The fulcrum rod (411) of the shelf (41) passes through the corresponding through hole and is connected to the connecting member.

2. The shelf according to claim 1, characterized in that: The shelf (41) is a fixed shelf, the connecting member is a fixed support member (42), and the through hole is a square through hole (322); The fixed support member (42) is fixed inside the air duct assembly; The fulcrum rod (411) of the fixed shelf passes through the corresponding square through hole (322) and is connected to the fixed support member (42).

3. The shelf according to claim 1, characterized in that: The rack (41) is an adjustable rack, the connecting piece is a lifting and lowering adjustment component, and the through hole is an L-shaped through hole (323); The lifting and adjusting assembly is fixed inside the air duct assembly; The fulcrum rod (411) of the adjustable shelf passes through the corresponding L-shaped through hole (323) and is connected to the lifting and lowering adjustment component.

4. The shelf according to claim 3, characterized in that: The lifting and lowering adjustment component comprises a sliding adjustment component (43); The sliding adjustment component (43) comprises a first sliding member (431) and a first fixing member (432); The first sliding member (431) is slidably connected to the first fixing member (432), and the first fixing member (432) is fixedly connected to the air duct assembly; A flange (4322) is arranged on the side of the first fixing member (432), a plurality of shelf adjustment holes (4323) are arranged on the front of the flange (4322), a second fulcrum hole (4312) is arranged on the front of the first sliding member (431), and the shelf fulcrum rod (411) passes through the L-shaped through hole (323) and the second fulcrum hole (4312) and is connected to the adjustment hole (4323).

5. The shelf according to claim 4, characterized in that: A roller (433) is arranged at the rear of the first sliding member (431), a first limiting groove (4331) is arranged around the roller (433), and limiting buckles (4311) are arranged on the front and rear sides of the first sliding member (431); A first limiting step (4321) is provided on the front and rear side surfaces inside the first fixing member (432); The first sliding member (431) is slidably connected to the first limiting step (4321) via the first limiting groove (4331) of the roller, and the limiting buckle (4311) is simultaneously limitedly engaged with the first limiting step (4321).

6. The shelf according to claim 3, characterized in that: The lifting and lowering adjustment component includes a damping adjustment component (44); The damping adjustment component (44) comprises a second sliding member (441) and a second fixing member (442); The second sliding member (441) is slidably connected to the second fixing member (442), and the second fixing member (442) is fixedly connected to the air duct assembly; An adjusting member (444) is arranged on the side of the second fixing member (442), a plurality of rack adjusting holes (4323) are arranged on the front of the adjusting member (444), a second fulcrum hole (4312) is arranged on the front of the second sliding member (441), and the rack fulcrum rod (411) can pass through the L-shaped through hole (323) and the second fulcrum hole (4312) to overlap with the adjusting hole (4323).

7. The shelf according to claim 6, characterized in that: A one-way damper (443) is arranged at the rear of the second sliding member (441), a gear (4431) is arranged on the one-way damper (443), and second limiting grooves (4411) are arranged on two side surfaces outside the second sliding member (441); A rack (4421) is arranged on one side of the second fixing member (442), and second limiting steps (4422) are arranged on both the front and rear side surfaces of the second fixing member (442); The second sliding member (441) is installed inside the second fixing member (442) from the upper and lower ends of the second fixing member (442) through the cooperation between the second limiting groove (4411) and the second limiting step (4422), and the gear (4431) is rollingly connected to the rack (4421).

8. The shelf according to claim 1, characterized in that: Both sides of the shelf (41) are provided with a toggle member (412), and the shelf (41) can be extended and retracted laterally by pushing and pulling the toggle member (412).

9. The shelf according to claim 8, characterized in that: A limiting hook (4111) is arranged at the front of the fulcrum rod (411), and a third limiting step (4313) is arranged at the back of the second fulcrum hole (4312); When the shelf toggle member (412) is pushed, the fulcrum rod (411) contracts to the limit hook (4111) and abuts against the third limit step (4313), and the fulcrum rod (411) is separated from the first fixing member (432) and the second fixing member (442), and the shelf (41) is lifted up or pressed down to drive the first sliding member (431) and the second sliding member (441) to adjust up and down.

10. A refrigerator, characterized in that: The refrigerator (100) comprises a box liner (1), a storage compartment (2) is formed inside the box liner (1), grooves (11) are symmetrically arranged on the inner side wall of the box liner (1), and the refrigerator (100) further comprises an air duct assembly (3), the air duct assembly (3) is installed in the groove (11), and the outer side surface of the air duct assembly (3) is flush with the side wall of the box liner (1); The air duct assembly (3) comprises an air duct lining box (31) and an air duct cover plate (32); An air outlet area is arranged in the middle of the air duct liner box (31), the bottom of the air outlet area is an air inlet (311), a plurality of air outlets (321) are arranged on the front of the air duct cover plate (32), and the air duct cover plate (32) is fixed on the front of the air outlet area of ​​the air duct liner box (31), thereby enclosing an air circulation channel with air inlet at the bottom and air outlet at the front; The air duct assembly (3) further comprises a decorative cover plate (33), wherein the decorative cover plate (33) is fixed on the front of the air duct assembly (3), an air outlet avoidance hole (331) is arranged on the front of the decorative cover plate (33), and the front of the air outlet (321) is flush with the front of the air duct cover plate (32); The refrigerator (100) further comprises a shelf assembly (4) according to any one of claims 1 to 9, wherein the shelf assembly (4) is arranged between left and right side wall air duct assemblies (3) inside the storage compartment (2).

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