Refrigerator and its air duct structure

Abstract

The present application relates to a refrigerator and its air duct structure. An air duct structure includes: a main body; a telescopic mechanism, which includes a first connecting member, a second connecting member and a telescopic unit. Both the first connecting member and the second connecting member are connected to the main body, and the telescopic unit is rotatably arranged between the first connecting member and the second connecting member. Wherein, the telescopic unit has a folded state and an unfolded state. Driving the telescopic unit to rotate can make the telescopic unit switch between the folded state and the unfolded state, thereby changing the length of the telescopic unit. A refrigerator includes: a box body; the above-mentioned air duct structure, and the air duct structure is accommodated in the box body. For the above-mentioned refrigerator and its air duct structure, the change in the size of the air duct structure can be adapted to different types or different sizes of refrigerators, and the adaptation range is relatively wide; rotating the telescopic unit can make the telescopic unit switch between the folded state and the unfolded state, the operation is simple and the structural design is reasonable, which is beneficial to reducing costs.

Description

Technical Field

[0001] This application relates to the technical field of refrigerators, and particularly to a refrigerator and its air duct structure. Background Art

[0002] With the development of social economy and the improvement of people's living standards, refrigerators have also become indispensable household appliances in people's daily lives. Refrigerators of different types and sizes have boxes of different sizes, and air duct structures of different sizes need to be adapted. If the size of the air duct structure cannot be changed, an air duct structure needs to be configured for each size of the box, and the applicable range of the air duct structure is narrow and the production cost is high. Summary of the Invention

[0003] Based on this, in view of the problems of narrow applicable range and high production cost of the air duct structure, it is necessary to provide a refrigerator and its air duct structure.

[0004] An air duct structure includes:

[0005] A main body;

[0006] A telescopic mechanism, including a first connecting member, a second connecting member and a telescopic unit. The first connecting member and the second connecting member are both connected to the main body, and the telescopic unit is rotatably arranged between the first connecting member and the second connecting member;

[0007] Wherein, the telescopic unit has a folded state and an unfolded state; driving the telescopic unit to rotate can make the telescopic unit switch between the folded state and the unfolded state, thereby changing the length of the telescopic unit.

[0008] For the above air duct structure, the length of the telescopic unit is changed by folding or unfolding, so as to realize the change of the size of the air duct structure, which can be adapted to refrigerators of different types or different sizes, and has a wide adaptation range; rotating the telescopic unit can make the telescopic unit switch between the folded state and the unfolded state, with simple operation and reasonable structural design, which is beneficial to reducing costs.

[0009] In one embodiment, the telescopic unit includes a plurality of movable members, and the movable members are rotatably connected into one body. Rotating the movable members can change the relative positions of the movable members.

[0010] In one embodiment, each movable member includes a fixed seat and two movable columns. The two movable columns are spaced apart on the fixed seat, and the movable columns in each two adjacent movable members are rotatably connected.

[0011] In one embodiment, a through groove is provided on the movable column of one movable member, and the movable column of another adjacent movable member is rotatably arranged in the through groove.

[0012] In one embodiment, the cross-section of the through groove is a 270-degree sector cross-section, and the movable column in another adjacent movable member is semi-cylindrical, so that the movable column in another adjacent movable member can rotate 90 degrees each time in the through groove.

[0013] In one embodiment, through grooves are provided on both movable columns of one movable member, and both movable columns of another adjacent movable member are semi-cylindrical.

[0014] In one embodiment, one of the two movable columns of the same movable member is provided with a through groove, and the other of the two movable columns of the same movable member is semi-cylindrical.

[0015] In one embodiment, a magnetic member is provided in each fixed seat, and the polarities of the magnetic members in two adjacent fixed seats are opposite.

[0016] In one embodiment, the air duct structure further includes a locking mechanism, which is arranged between the telescopic unit, the first connecting member and the second connecting member, and is used for locking the telescopic unit in the folded state or the unfolded state.

[0017] In one embodiment, the locking mechanism includes a locking seat and a locking member. The connecting end of the locking seat is rotatably connected to the first connecting member, the free end of the locking seat is movably buckled to the second connecting member, and the locking member passes through the locking seat and is rotatably connected to the movable column. By rotating the locking member, the locking member can be clamped to the locking seat and the telescopic unit can be locked.

[0018] In one embodiment, the locking seat is provided with a slot. The locking member includes a clamping portion and a locking portion. The locking portion passes through the slot and is rotatably connected to the movable column, and the clamping portion can be clamped outside the slot.

[0019] In one embodiment, the locking mechanism further includes a buckle plate and an elastic member. One end of the elastic member is fixed to the first connecting member, the other end of the elastic member is fixed to the buckle plate, and the second connecting member is provided with a convex block buckled to the buckle plate.

[0020] In one embodiment, the movable member located at the head is rotatably connected to the first connecting member, and the movable member located at the tail is rotatably connected to the second connecting member.

[0021] In one embodiment, the number of the telescopic units is multiple, and each telescopic unit is arranged in series between the first connecting member and the second connecting member, and / or each telescopic unit is arranged at intervals between the first connecting member and the second connecting member.

[0022] In one embodiment, the first connecting member and the second connecting member are both provided with positioning posts, the main body is provided with positioning grooves, and the positioning posts are passed through and fixed in the positioning grooves.

[0023] In one embodiment, the positioning column is a cubic column, and the cross-section of the positioning groove is rectangular.

[0024] In one embodiment, the main body includes a panel, a cover plate and a side panel, the side panel is respectively provided on the first side and the second side of the panel, the telescopic mechanism is provided between the panel and the side panel, a vent is provided on the third side of the panel, and the cover plate is provided on the fourth side of the panel away from the vent.

[0025] A refrigerator, comprising:

[0026] Box;

[0027] The above-mentioned air duct structure is accommodated in the box body.

[0028] The above-mentioned refrigerator can be adapted to refrigerators of different types or sizes by changing the size of the air duct structure, and has a wide range of adaptability; the telescopic unit can be switched between the folded state and the unfolded state by rotating the telescopic unit, which is easy to operate and has a reasonable structural design, which is conducive to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of a refrigerator body and air duct structure in one embodiment;

[0030] Figure 2 It is a schematic diagram of the combination of a refrigerator body and an air duct structure in one embodiment;

[0031] Figure 3 for Figure 2 An exploded view of the duct structure shown;

[0032] Figure 4 for Figure 3 A schematic diagram of the telescopic mechanism in the air duct structure shown;

[0033] Figure 5 for Figure 4 A schematic diagram of a first embodiment of a movable column in a telescopic mechanism shown;

[0034] Figure 6 for Figure 4 A schematic diagram of a second embodiment of a movable column in the telescopic mechanism shown;

[0035] Figure 7 for Figure 4 An exploded view of the telescopic mechanism shown;

[0036] Figure 8 is Figure 4 a partial sectional view of the telescopic mechanism shown;

[0037] Figure 9 is Figure 3 the first schematic diagram of the locking mechanism in the air duct structure shown;

[0038] Figure 10 is Figure 3 the second schematic diagram of the locking mechanism in the air duct structure shown.

[0039] Reference numerals:

[0040] 10, box body; 20, air duct structure; 21, ventilation opening; 100, main body; 110, panel; 120, cover plate; 130, side plate; 200, telescopic mechanism; 210, first connecting member; 211, first connecting column; 212, first positioning column; 220, second connecting member; 221, second connecting column; 222, convex block; 223, second positioning column; 230, telescopic unit; 240, moving member; 241, fixed seat; 241a, body; 241b, fixing plate; 241c, accommodating groove; 242, moving column; 243, through groove; 244, magnetic member; 250, first moving member; 251, first fixed seat; 252, first moving column; 253, second moving column; 254, first through groove; 255, second through groove; 260, second moving member; 261, second fixed seat; 262, third moving column; 263, fourth moving column; 270, third moving member; 271, third fixed seat; 272, fifth moving column; 273, sixth moving column; 274, third through groove; 275, fourth through groove; 280, locking mechanism; 281, locking seat; 282, locking member; 282a, clamping portion; 282b, locking portion; 283, slot; 284, clamping plate; 285, elastic member. Detailed implementation manners

[0041] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation on the present application.

[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0044] In the present application, unless otherwise clearly specified and limited, the terms "initial", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0046] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0047] Please refer to Figure 1 , the refrigerator in one embodiment includes a box body 10 and an air duct structure 20, and the air duct structure 20 is accommodated in the box body 10.

[0048] In this embodiment, in combination with Figure 2 shown, the air duct structure 20 has a ventilation opening 21, and a freezing chamber or a refrigerating chamber is provided in the box body 10, and air is led and sent into the freezing chamber or the refrigerating chamber in the box body 10 through the ventilation opening 21.

[0049] It can be understood that refrigerators of different types and sizes have box bodies 10 of different sizes, and different-sized air duct structures 20 need to be adapted. If the size of the air duct structure 20 cannot be changed, each size of the box body 10 needs to be equipped with an air duct structure 20, and the applicable range of the air duct structure 20 is narrow and the production cost is high.

[0050] Based on the above considerations, an air duct structure 20 with a wide applicable range and capable of effectively reducing costs is designed.

[0051] Please refer to Figure 3 and Figure 4 , the air duct structure 20 in one embodiment includes a main body 100 and a telescopic mechanism 200. The telescopic mechanism 200 includes a first connecting member 210, a second connecting member 220 and a telescopic unit 230. Both the first connecting member 210 and the second connecting member 220 are connected to the main body 100, and the telescopic unit 230 is rotatably provided between the first connecting member 210 and the second connecting member 220.

[0052] Among them, as Figure 4 shown, the telescopic unit 230 has a folded state and an unfolded state; driving the telescopic unit 230 to rotate can make the telescopic unit 230 switch between the folded state and the unfolded state, thereby changing the length of the telescopic unit 230.

[0053] Through the above settings, the length of the telescopic unit 230 is changed by folding or unfolding the telescopic unit 230, thereby realizing the change of the size of the air duct structure 20, which can be adapted to different types or different sizes of refrigerators, and has a wide adaptation range; rotating the telescopic unit 230 can make the telescopic unit 230 switch between the folded state and the unfolded state, with simple operation and reasonable structural design, which is beneficial to reducing costs.

[0054] In Figure 4 the embodiment shown, the telescopic unit 230 includes a plurality of movable members 240. Each movable member 240 is rotatably connected as a whole. By rotating each movable member 240, the relative positions of the movable members 240 can be changed, and the length of the telescopic unit 230 can be changed.

[0055] It can be understood that when the telescopic unit 230 is in the folded state, each movable member 240 is in the first position. At this time, by rotating each movable member 240, each movable member 240 can be moved to the second position, and the telescopic unit 230 is switched from the folded state to the unfolded state; by rotating each movable member 240 again, each movable member 240 can be returned from the second position to the first position, and the telescopic unit 230 is switched from the unfolded state to the folded state.

[0056] In this embodiment, as Figure 4 and Figure 3 shown, the movable member 240 located at the head is rotatably connected to the first connecting member 210, and the movable member 240 located at the tail is rotatably connected to the second connecting member 220.

[0057] Specifically, as combined with Figure 8 shown, the first connecting member 210 is provided with a first connecting column 211, and the movable member 240 located at the head is rotatably connected to the first connecting column 211. The second connecting member 220 is provided with a second connecting column 221, and the movable member 240 located at the tail is rotatably connected to the second connecting column 221.

[0058] In Figure 5 the embodiment shown, each movable member 240 includes a fixed seat 241 and two movable columns 242. The two movable columns 242 are spaced apart on the fixed seat 241, and the movable columns 242 in each two adjacent movable members 240 are rotatably connected.

[0059] It should be noted that one movable column 242 in one movable member 240 is rotatably connected to one movable column 242 in another movable member 240, so that each movable member 240 is spliced together by a rotational connection method. Through this setting, each movable member 240 can be quickly disassembled and assembled, which is beneficial to improving the disassembly and assembly efficiency.

[0060] In this embodiment, as Figure 5 and Figure 6 shown, the two movable columns 242 of each movable member 240 are located on opposite sides of the fixed seat 241. Through this setting, the interference between the two movable columns 242 during rotation can be effectively avoided.

[0061] Specifically, as Figure 5 and Figure 6As shown, the fixed seat 241 includes a main body 241a and fixing plates 241b extending outward from both sides of the main body 241a. A receiving groove 241c is provided on each of the opposite sides of the main body 241a. The receiving groove 241c is open on one side and communicates with the outside. The end of the movable column 242 is fixed to the fixing plate 241b and is received in the receiving groove 241c. A part of the circumferential side of the movable column 242 is exposed from the opening of the receiving groove 241c.

[0062] In this embodiment, the main body 241a and the fixing plates 241b are of an integrally formed structure, and the movable column 242 and the fixing plate 241b are of an integrally formed structure, which has good integrity and high mechanical strength. In other embodiments, the movable column 242 and the fixing plate 241b can also be of a split structure and are fixed to the fixing plate 241b by a detachable connection method.

[0063] As Figure 5 shown in the embodiment, a through groove 243 is provided in the movable column 242 of one movable member 240, and the movable column 242 of another adjacent movable member 240 is rotatably disposed in the through groove 243.

[0064] In this embodiment, as Figure 1 shown, the cross-section of the through groove 243 is a 270-degree sector cross-section, and the movable column 242 of another adjacent movable member 240 is semi-cylindrical, so that the movable column 242 of another adjacent movable member 240 can rotate 90 degrees each time in the through groove 243. Through this setting, when the movable column 242 of another adjacent movable member 240 rotates in the through groove 243 of one movable member 240, the rotation angle of the movable column 242 can be limited to prevent the skew of each movable member 240 from affecting the flatness of the air duct structure 20.

[0065] In other embodiments, the cross-section of the through groove 243 can also be other sector cross-sections, and the movable column 242 of another adjacent movable member 240 can be 1 / 4 cylindrical.

[0066] In Figure 6 shown in an embodiment, through grooves 243 are provided in both movable columns 242 of one movable member 240, and both movable columns 242 of another adjacent movable member 240 are semi-cylindrical.

[0067] For example, as combined with Figure 7 and Figure 8 shown, the telescopic unit 230 includes a first movable member 250, a second movable member 260, and a third movable member 270. The second movable member 260 is rotatably connected to the first movable member 250 and the third movable member 270 respectively. The first movable member 250 is rotatably connected to the first connecting member 210, and the third movable member 270 is rotatably connected to the second connecting member 220.

[0068] Combined withFigure 7 and Figure 8 As shown in Figure 8 , the first movable member 250240 includes a first fixed seat 251, a first movable column 252 and a second movable column 253. The first movable column 252 and the second movable column 253 are spaced apart on the first fixed seat 251; the second movable member 260 includes a second fixed seat 261, a third movable column 262 and a fourth movable column 263. The third movable column 262 and the fourth movable column 263 are spaced apart on the second fixed seat 261; the third movable member 270 includes a third fixed seat 271, a fifth movable column 272 and a sixth movable column 273. The fifth movable column 272 and the sixth movable column 273 are spaced apart on the third fixed seat 271. The first movable column 252 is rotatably connected to the first connecting member 210, the sixth movable column 273 is rotatably connected to the second connecting member 220, the second movable column 253 is rotatably connected to the third movable column 262, and the fourth movable column 263 is rotatably connected to the fifth movable column 272.

[0069] Wherein, a first through groove 254 is provided in the first movable column 252, a second through groove 255 is provided in the second movable column 253. The third movable column 262 and the fourth movable column 263 are both semi-cylindrical. A third through groove 274 is provided in the fifth movable column 272, and a fourth through groove 275 is provided in the sixth movable column 273. The cross-sections of the first through groove 254, the second through groove 255, the third through groove 274, and the fourth through groove 275 are all 270-degree fan-shaped cross-sections. The first connecting column 211 is rotatably arranged in the first through groove 254, the second connecting column 221 is rotatably arranged in the fourth through groove 275, the third movable column 262 is rotatably arranged in the second through groove 255, and the fourth movable column 263 is rotatably arranged in the third through groove 274.

[0070] When the telescopic unit 230 is in the folded state, the first movable member 250, the second movable member 260 and the third movable member 270 are in the first position. Rotate the first movable member 250 clockwise by 90 degrees around the first connecting column 211, rotate the second movable member 260 counterclockwise by 90 degrees around the first connecting column 211, and rotate the third movable member 270 counterclockwise by 90 degrees around the first connecting column 211. At this time, the telescopic unit 230 is switched from the folded state to the unfolded state; rotate the first movable member 250 counterclockwise by 90 degrees around the first connecting column 211 again, rotate the second movable member 260 clockwise by 90 degrees around the first connecting column 211, and rotate the third movable member 270 clockwise by 90 degrees around the first connecting column 211. At this time, the telescopic unit 230 is switched from the unfolded state to the folded state.

[0071] In Figure 6 In another embodiment not shown, one of the two movable columns 242 of the same movable member 240 is provided with a through groove 243, and the other movable column 242 of the same movable member 240 is semi-cylindrical.

[0072] For example, in combination with Figure 7 and Figure 8 As shown, the first movable member 250 includes a first fixed seat 251, a first movable column 252 and a second movable column 253. The first movable column 252 and the second movable column 253 are spaced apart on the first fixed seat 251; the second movable member 260 includes a second fixed seat 261, a third movable column 262 and a fourth movable column 263. The third movable column 262 and the fourth movable column 263 are spaced apart on the second fixed seat 261; the third movable member 270 includes a third fixed seat 271, a fifth movable column 272 and a sixth movable column 273. The fifth movable column 272 and the sixth movable column 273 are spaced apart on the third fixed seat 271. The first movable column 252 is rotatably connected to the first connecting member 210, the sixth movable column 273 is rotatably connected to the second connecting member 220, the second movable column 253 is rotatably connected to the third movable column 262, and the fourth movable column 263 is rotatably connected to the fifth movable column 272.

[0073] Among them, the first movable column 252, the third movable column 262 and the fifth movable column 272 are all provided with through grooves 243, and the second movable column 253, the fourth movable column 263 and the sixth movable column 273 are all semi-cylindrical. The first connecting column 211 is rotatably arranged in the through groove 243 of the first movable column 252, the second connecting column 221 is rotatably connected to the sixth movable column 273, the second movable column 253 is rotatably arranged in the through groove 243 of the third movable column 262, and the fourth movable column 263 is rotatably arranged in the through groove 243 of the fifth movable column 272.

[0074] Since each movable member 240 needs to be positioned after rotation and the movable members 240 are made to be close to each other to prevent the movable members 240 from being unable to be positioned, which affects the structural stability of the telescopic unit 230 in each state. Based on the above considerations, as Figure 8 shown, a magnetic member 244 is provided in each fixed seat 241, and the polarities of the magnetic members 244 in two adjacent fixed seats 241 are opposite.

[0075] Through this setting, when the telescopic unit 230 is in the folded state, the magnetic members 244 in adjacent fixed seats 241 can attract each other, reducing the gap between adjacent movable members 240 and improving the sealing performance and assembly structural strength of the telescopic unit 230.

[0076] In a specific embodiment, the magnetic member 244 is a permanent magnet. At least two magnetic members 244 can be provided in each fixed seat 241 to enhance the adsorption force of the magnetic member 244.

[0077] In this embodiment, the magnetic member 244 is built into the fixed seat 241. In other embodiments, the magnetic member 244 can also be attached to the outer wall of the fixed seat 241.

[0078] Since each movable part 240 needs to be locked after rotation to lock the telescopic unit 230 in the folded state or the unfolded state, otherwise the structural stability of the telescopic unit 230 in each state cannot be ensured. Based on the above considerations, as Figure 9 shown, the air duct structure 20 further includes a locking mechanism 280, and the locking mechanism 280 is disposed between the telescopic unit 230, the first connecting member 210 and the second connecting member 220, and is used to lock the telescopic unit 230 in the folded state or the unfolded state.

[0079] Specifically, as shown in Figure 10 shown, the locking mechanism 280 includes a locking seat 281 and a locking member 282. The connecting end of the locking seat 281 is rotatably connected to the first connecting member 210, the free end of the locking seat 281 is movably buckled to the second connecting member 220, and the locking member 282 passes through the locking seat 281 and is rotatably connected to the movable column 242. By rotating the locking member 282, the locking member 282 can be clamped to the locking seat 281, and the telescopic unit 230 can be locked.

[0080] It can be understood that when the free end of the locking seat 281 is buckled to the second connecting member 220 and the locking member 282 rotates to be clamped to the locking seat 281, there is no movable space between the locking member 282 and the locking seat 281. At this time, the movable column 242 is locked and cannot rotate, and the telescopic unit 230 can be locked in the folded state or the unfolded state; when the locking member 282 rotates again and is not clamped to the locking seat 281, the locking member 282 lifts up some space relative to the locking seat 281. At this time, the movable column 242 is unlocked and can rotate, and the telescopic unit 230 can be switched between the folded state and the unfolded state.

[0081] In a specific embodiment, as shown in Figure 9 shown, the locking seat 281 is provided with a slot 283, the locking member 282 includes a clamping portion 282a and a locking portion 282b, the locking portion 282b passes through the slot 283 and is rotatably connected to the movable column 242, and the clamping portion 282a can be clamped outside the slot 283.

[0082] In this embodiment, the clamping portion 282a is rectangular and has a long side and a short side. As shown in Figure 9 shown, when the movable column 242 is unlocked, the long side of the clamping portion 282a is parallel to the extending direction of the slot 283; as shown in Figure 10 shown, when the movable column 242 is locked, the long side of the clamping portion 282a is perpendicular to the extending direction of the slot 283.

[0083] In this embodiment, the clamping portion 282a and the locking portion 282b are integrally formed structures, which have good integrity and high mechanical strength. In other embodiments, the clamping portion 282a and the locking portion 282b can also be detachable structures, which are convenient for replacing different locking portions 282b to adapt to different movable columns 242.

[0084] In this embodiment, a locking member 282 is correspondingly provided on each movable column 242. In other embodiments, a locking member 282 may be provided every other movable column 242.

[0085] As Figure 10 shown in the embodiment, the locking mechanism 280 further includes a buckle plate 284 and an elastic member 285. One end of the elastic member 285 is fixed to the first connecting member 210, and the other end of the elastic member 285 is fixed to the buckle plate 284. The second connecting member 220 is provided with a convex block 222 that is buckled with the buckle plate 284.

[0086] In this embodiment, in combination with Figure 9 as shown, when the buckle plate 284 is not buckled with the convex block 222, the buckle plate 284 is connected to the first connecting member 210 through the elastic member 285; when the buckle plate 284 is buckled with the convex block 222, the elastic member 285 is pulled and the buckle plate 284 is buckled to the convex block 222. Through this setting, it is beneficial to the storage of the buckle plate 284 and convenient for quickly using the buckle plate 284 each time.

[0087] In a specific embodiment, the elastic member 285 is a spring or an elastic cord.

[0088] As Figure 8 shown in the embodiment, both the first connecting member 210 and the second connecting member 220 are connected to the main body 100.

[0089] Specifically, in combination with Figure 7 as shown, the first connecting member 210 is provided with a first positioning post 212, the second connecting member 220 is provided with a second positioning post 223, and the main body 100 is provided with corresponding positioning grooves. The positioning posts are inserted and fixed in the positioning grooves.

[0090] In this embodiment, the positioning posts are cubic columns, and the cross-section of the positioning grooves is rectangular. In other embodiments, the positioning posts may be elliptical columns, the positioning grooves may be elliptical, and the positioning posts are fixed in the positioning grooves and cannot rotate.

[0091] As Figure 8 shown in the embodiment, the main body 100 includes a panel 110, a cover plate 120, and side plates 130. Side plates 130 are respectively provided on the first side and the second side of the panel 110, and the telescopic mechanism 200 is provided between the panel 110 and the side plates 130.

[0092] In this embodiment, as Figure 8 shown, the side plates 130 are provided with positioning grooves, the third side of the panel 110 is provided with ventilation openings 21, and the cover plate 120 covers the fourth side of the panel 110 facing away from the ventilation openings 21.

[0093] In this embodiment, the panel 110, the cover plate 120, and the side plate 130 are all detachably connected for easy disassembly and assembly. In other embodiments, the panel 110, the cover plate 120, and the side plate 130 may also be integrally formed structures.

[0094] In this embodiment, the number of the telescopic units 230 is multiple, and the telescopic units 230 are arranged in series and / or the telescopic units 230 are arranged at intervals. Through this arrangement, the length adjustment range of the telescopic units 230 can be wider, and the applicable range can be larger.

[0095] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0096] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An air duct structure (20), characterized in that, Comprising: A main body (100); A telescopic mechanism (200), including a first connecting member (210), a second connecting member (220) and a telescopic unit (230). The first connecting member (210) and the second connecting member (220) are both connected to the main body (100), and the telescopic unit (230) is rotatably arranged between the first connecting member (210) and the second connecting member (220); Wherein, the telescopic unit (230) has a folded state and an unfolded state; driving the telescopic unit (230) to rotate can switch the telescopic unit (230) between the folded state and the unfolded state, thereby changing the length of the telescopic unit (230); The telescopic unit (230) includes a plurality of movable members (240), and each of the movable members (240) is rotatably connected into one body. Rotating each of the movable members (240) can change the relative positions of the movable members (240); each of the movable members (240) includes a fixed seat (241) and two movable columns (242), and the two movable columns (242) are spaced apart on the fixed seat (241), and the movable columns (242) in each two adjacent movable members (240) are rotatably connected.

2. The air duct structure (20) according to claim 1, characterized in that, A through groove (243) is provided on the movable column (242) of one of the movable members (240), and the movable column (242) of another adjacent movable member (240) is rotatably arranged in the through groove (243).

3. The air duct structure (20) according to claim 2, wherein The cross-section of the through groove (243) is a 270-degree sector cross-section, and the movable column (242) of another adjacent movable member (240) is semi-cylindrical, so that the movable column (242) of another adjacent movable member (240) can rotate 90 degrees each time in the through groove (243).

4. The air duct structure (20) according to claim 2, wherein, Through grooves (243) are provided on both of the movable columns (242) of one of the movable members (240), and both of the movable columns (242) of another adjacent movable member (240) are semi-cylindrical.

5. The air duct structure (20) according to claim 2, wherein A through groove (243) is provided on one of the movable columns (242) of the two movable columns (242) of the same movable member (240), and the other movable column (242) of the two movable columns (242) of the same movable member (240) is semi-cylindrical.

6. The air duct structure (20) according to claim 1, characterized in that A magnetic member (244) is provided in each of the fixed seats (241), and the polarities of the magnetic members (244) in two adjacent fixed seats (241) are opposite.

7. The air duct structure (20) according to claim 1, wherein, The air duct structure (20) further includes a locking mechanism (280), and the locking mechanism (280) is arranged between the telescopic unit (230), the first connecting member (210) and the second connecting member (220), and is used to lock the telescopic unit (230) in the folded state or the unfolded state.

8. The air duct structure (20) according to claim 7, characterized in that, The locking mechanism (280) includes a locking seat (281) and a locking member (282); the connecting end of the locking seat (281) is rotatably connected to the first connecting member (210); the free end of the locking seat (281) can be movably buckled to the second connecting member (220); the locking member (282) passes through the locking seat (281) and is rotatably connected to the movable column (242); by rotating the locking member (282), the locking member (282) can be clamped on the locking seat (281) and the telescopic unit (230) can be locked.

9. The air duct structure (20) according to claim 8, wherein, The locking seat (281) is provided with a slot (283), and the locking member (282) comprises a clamping portion (282a) and a locking portion (282b), wherein the locking portion (282b) passes through the slot (283) and is rotatably connected to the movable column (242), and the clamping portion (282a) can be clamped outside the slot (283).

10. The air duct structure (20) according to claim 8, characterized in that, The locking mechanism (280) further comprises a buckle plate (284) and an elastic member (285), one end of the elastic member (285) being fixed to the first connecting member (210), the other end of the elastic member (285) being fixed to the buckle plate (284), and the second connecting member (220) being provided with a protrusion (222) buckled with the buckle plate (284).

11. The air duct structure (20) according to claim 1, characterized in that, The movable member (240) located at the head is rotatably connected to the first connecting member (210), and the movable member (240) located at the tail is rotatably connected to the second connecting member (220).

12. The air duct structure (20) according to claim 1, characterized in that, The number of the telescopic units (230) is plural, and each of the telescopic units (230) is arranged in series between the first connecting member (210) and the second connecting member (220), and / or each of the telescopic units (230) is arranged at intervals between the first connecting member (210) and the second connecting member (220).

13. The air duct structure (20) according to claim 1, wherein, The first connecting member (210) and the second connecting member (220) are both provided with positioning columns, the main body (100) is provided with positioning grooves, and the positioning columns are passed through and fixed in the positioning grooves.

14. The air duct structure (20) according to claim 13, characterized in that, The positioning column is a cubic column, and the cross section of the positioning groove is a rectangle.

15. The air duct structure (20) according to claim 1, characterized in that, The main body (100) comprises a panel (110), a cover plate (120) and a side plate (130); a side plate (130) is respectively provided on a first side and a second side of the panel (110); the telescopic mechanism (200) is provided between the panel (110) and the side plate (130); a vent (21) is provided on a third side of the panel (110); and the cover plate (120) is covered on a fourth side of the panel (110) away from the vent (21).

16. A refrigerator, characterized in that, include: Box body (10); The air duct structure (20) according to any one of claims 1 to 15, wherein the air duct structure (20) is accommodated in the box body (10).

Images