CN112303980A

CN112303980A - Air duct system for refrigerated cabinet and refrigerated cabinet

Info

Publication number: CN112303980A
Application number: CN201910707620.1A
Authority: CN
Inventors: 付志明; 朱宝平; 周文通; 叶闽平; 刘志军
Original assignee: Hisense Ronshen Guangdong Freezer Co Ltd
Current assignee: Hisense Ronshen Guangdong Freezer Co Ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2021-02-02

Abstract

The invention discloses an air duct system for a refrigerated cabinet and the refrigerated cabinet, relates to the technical field of refrigeration equipment, and aims to solve the problem that cold air is directly blown to stored articles to influence the storage quality after the position of a shelf in the prior art is changed. The air duct system for the refrigerated cabinet comprises an air duct assembly arranged in the refrigerated cabinet body, the air duct assembly comprises an air duct cover plate, a plurality of groups of air outlets and a plurality of groups of air outlets are arranged on the air duct cover plate from top to bottom, each group of air outlets are provided with air baffles, and the air baffles are movably connected with the air duct cover plate. The air duct system provided by the invention is used for the refrigerated cabinet.

Description

Air duct system for refrigerated cabinet and refrigerated cabinet

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to an air duct system for a refrigerated cabinet and the refrigerated cabinet.

Background

The refrigerated cabinet, mainly used guarantees the freshness of cold-stored food, the shelf of general refrigerated cabinet sets up according to 25 mm's interval, and upper and lower position can be adjusted, however, the air outlet of the air duct system of current refrigerated cabinet is fixed, generally, set up the interval between the shelf according to the predetermined article height of depositing, confirm the position of air outlet again through this interval, thereby make the air outlet be in the shelf downside, ensure that cold wind flows along the clearance between the article of depositing of shelf and lower floor, to storing the article on the shelf of the superiors, it is cold-stored fresh-keeping by the cold wind that the upper air outlet that is located the air duct system upper portion and sets up blows out.

As shown in fig. 1, a refrigerator structure in the prior art includes a cabinet 100, a supporting frame 110 capable of adjusting shelf positions is disposed inside the cabinet 100, a plurality of clamping holes 111 are disposed on the supporting frame 110 at an interval of 25mm along a vertical direction, a supporting plate 120 is clamped in the clamping holes 111, and the supporting plate 120 can adjust a distance of N × 25mm upward or downward, so that the shelf positions can be changed by N × 25mm upward or downward, as shown in fig. 2, an air duct system is disposed in the cabinet 100, and includes an air duct cover plate 130, and an air outlet 131 is disposed on the air duct cover plate.

Because the air outlet position in the air duct system is unchanged, when the height of the stored articles is higher than the preset height of the stored articles, the position of the shelf needs to be adjusted, at the moment, the relative position between the air outlet and the shelf changes, so that cold air blown out from the air outlet does not flow along the gap between the shelf and the stored articles at the lower layer, but part of the cold air directly blows the stored articles, thus the local low temperature and even the local frost damage of the stored articles are caused, and the storage quality is influenced.

For example, in order to ensure that the storage state is kept in a liquid state in the supercooling storage of liquid beverages, the temperature needs to be kept within the range of ice crystal temperature (temperature lower than 0 ℃ and not frozen), bottled pure water can be kept in the liquid state at-4 ℃ to-5 ℃, the temperature difference between cold air blown out from an air outlet and the storage temperature is generally 3-5 ℃, so that the temperature of the cold air directly blown to the bottled pure water is-8 ℃ to-10 ℃, and the temperature exceeds the ice crystal temperature range, so that the pure water is frozen and the drinking is influenced.

Disclosure of Invention

The embodiment of the invention provides an air duct system for a refrigerated cabinet and the refrigerated cabinet, which can open air outlets at corresponding positions according to the change of the positions of shelves, so that the storage quality of the refrigerated cabinet is improved.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

an embodiment of the invention provides an air duct system for a refrigerated cabinet, which comprises an air duct assembly arranged in a refrigerated cabinet body, wherein the air duct assembly comprises an air duct cover plate, a plurality of groups of air outlets are arranged on the air duct cover plate, the air outlets of the air ducts are arranged from top to bottom, air baffles are arranged at the air outlets of each group, and the air baffles are movably connected with the air duct cover plate.

According to the air duct system for the refrigerated cabinet provided by the embodiment of the invention, the air duct cover plate is provided with the plurality of groups of air outlets, the air baffles are arranged at the air outlets, and the corresponding air outlets can be opened by rotating the air baffles, so that the air outlets corresponding to the shelves are opened while the positions of the shelves in the refrigerated cabinet are adjusted, cold air blown out of the air outlets is prevented from being directly blown to stored articles after the positions of the shelves are changed, and the storage quality is improved.

An embodiment of the other aspect of the invention further provides a refrigerated cabinet, which comprises a cabinet body and the air duct system for the refrigerated cabinet, which is arranged in the cabinet body.

According to the refrigerator provided by the embodiment of the invention, as the air duct system for the refrigerator comprises the technical scheme, the same technical problems can be solved, and the same technical effects can be obtained.

Drawings

FIG. 1 is a schematic diagram of a prior art box structure;

FIG. 2 is a schematic structural view of a prior art duct system;

FIG. 3 is a schematic view of a refrigerator according to an embodiment of the present invention;

FIG. 4 is an exploded view of a refrigerated case provided in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cabinet body of a refrigerated cabinet according to an embodiment of the present invention;

FIG. 6 is a front view of the structure of the air duct assembly and the shelf according to the embodiment of the present invention;

FIG. 7 is a side cross-sectional view of an air duct assembly and a shelf according to an embodiment of the present invention;

FIG. 8 is a schematic view of a shelf structure of a refrigerated case according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a front side-facing surface of a duct cover according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of a rear-facing side of a duct cover according to an embodiment of the present invention;

FIG. 11 is a schematic view of a foam structure of an air duct according to an embodiment of the present invention;

fig. 12 is a schematic view of a connection structure of a wind deflector, a push plate, a connection shaft, a pressure plate and a torsion spring according to an embodiment of the present invention (the wind deflector is not rotated);

fig. 13 is a schematic view of a connection structure of a wind deflector, a push plate, a connection shaft, a pressure plate and a torsion spring (after the wind deflector rotates) according to an embodiment of the present invention;

fig. 14 is a schematic structural view of a wind deflector, a push plate and a connecting shaft according to an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a torsion spring according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a pressure plate according to an embodiment of the present invention.

Reference numerals: 1. a cabinet body; 2. an air duct assembly; 21. an air duct cover plate; 211. an air outlet; 212. mounting a column; 213. a groove; 214. a protrusion; 215. an opening; 216. a push rod aperture; 217. an air inlet; 22. a wind deflector; 221. a connecting shaft; 222. pressing a plate; 2221. mounting holes; 223. pushing the plate; 224. a torsion spring; 2241. a body; 2242. a first torque arm; 2243. a second torque arm; 23. air duct foam; 231. a yielding groove; 3. layering; 31. a push rod; 4. an adjusting bracket; 41. an adjustment hole; 42. and a support plate.

Detailed Description

The following describes a duct system for a refrigerator and a refrigerator according to an embodiment of the present invention in detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The refrigerated cabinet provided by the embodiment of the invention comprises a cabinet body 1, and an air duct system and a shelf 3 which are arranged inside the cabinet body 1, as shown in fig. 3 and 5, adjusting frames 4 are arranged on two opposite side walls inside the cabinet body 1, a plurality of adjusting holes 41 are formed in the adjusting frames 4 from top to bottom, the distance between every two adjacent adjusting holes 41 is 20mm-30mm, preferably 25mm, a supporting plate 42 is clamped in each adjusting hole 41, the shelf 3 is arranged in the cabinet body 1 and supported by the supporting plate 42, when the position of the shelf 3 needs to be adjusted, the supporting plate 42 is moved upwards or downwards, and then the shelf 3 is placed on the supporting plate 42.

Above-mentioned air duct system, as shown in fig. 3, fig. 4, including setting up the wind channel subassembly 2 in the freezer cabinet body 1, wind channel subassembly 2 includes wind channel apron 21, as shown in fig. 6, be provided with multiunit air outlet 211 on the wind channel apron 21, the multiunit air outlet 211 is arranged from top to bottom, every group air outlet 211 department all is provided with deep bead 22, deep bead 22 with swing joint between the wind channel apron 21.

According to the air duct system for the refrigerated cabinet provided by the embodiment of the invention, the air duct cover plate 21 is provided with the plurality of groups of air outlets 211, the air baffles 22 are arranged at the air outlets 211, and the corresponding air outlets 211 can be opened by rotating the air baffles 22, so that the air outlets 211 corresponding to the positions of the shelves 3 in the refrigerated cabinet are opened while the positions of the shelves 3 in the refrigerated cabinet are adjusted, cold air blown out from the air outlets 211 is prevented from being directly blown to stored articles after the positions of the shelves are changed, and the storage quality is improved.

The wind shield 22 of the embodiment of the present invention can be manually controlled by a user to open one of the wind outlets 211, and after the wind outlets 211 are opened, the shelf 3 is installed at a corresponding position, but the manual control reduces the convenience of the user, so the air duct system of the embodiment of the present invention further includes the shelf 3, as shown in fig. 5, 6 and 8, the shelf 3 is installed in the cabinet 1, the wind shield 22 is provided with a rotating mechanism, when the shelf 3 is installed, the user first installs the support plate 42 in the adjusting hole 41 with a desired height, then puts the shelf 3 into the cabinet 1 and places the shelf 3 on the support plate 42, and then pushes the shelf 3 to slide toward the rear side of the cabinet 1, so that the shelf 3 contacts with the rotating mechanism on the air duct cover plate 21, and continues to push the shelf 3, and the shelf 3 can push the air duct located below the shelf 3, And the rotating mechanism is close to the shelf 3, so that the rotating mechanism drives the wind shield 22 to open the corresponding air outlet 211. When installing layer frame 3, promote the slewing mechanism that is located layer frame 3 below and corresponds apart from layer frame 3 nearest air outlet 211 through layer frame 3, drive deep bead 22 through slewing mechanism and open this air outlet 211, thereby make layer frame 3 below, and be in the open mode apart from layer frame 3 nearest air outlet 211, thereby ensure that the cold wind that air outlet 211 blew out flows in the clearance between layer frame and the lower floor storage object, compare in the scheme of manual air outlet 211 of opening, in the installation layer frame 3, can open the scheme of the air outlet 211 of corresponding position, can improve the convenient degree that the user used.

The rotating mechanism provided by the embodiment of the present invention includes a connecting shaft 221 rotatably connected to the air duct cover plate 21, as shown in fig. 6 and 12, the connecting shaft 221 is connected to the air baffle 22, a push plate 223 is disposed on the connecting shaft 221, a push rod 31 is disposed on a side surface of the shelf 3 facing the air duct cover plate 21, and the push rod 31 is used for pushing the push plate 223. Connecting shaft 221 through rotating with wind channel cover plate 21 and being connected with deep bead 22 to control deep bead 22 and open or close air outlet 211, and be provided with push pedal 223 on connecting shaft 221, be provided with push rod 31 on layer frame 3, when installation layer frame 3, promote push pedal 223 through push rod 31, can make connecting shaft 221 rotate, and drive deep bead 22 and open air outlet 211.

The wind deflector 22 may be disposed between the air duct cover 21 and the air duct foam 23, or disposed at the front side of the air duct cover 21, and the wind deflector 22 is disposed between the air duct cover 21 and the air duct foam 23, which requires increasing the gap between the air duct cover 21 and the air duct foam 23, the gap does not need to be increased in the front side of the duct cover 21, and specifically, as shown in fig. 9, 10 and 12, the air duct cover plate 21 is provided with a groove 213, the notch of the groove 213 faces the air duct foam 23 at the rear side of the air duct cover plate 21, the groove 213 forms a protrusion 214 on a side of the duct cover 21 remote from the duct foam 23, an opening 215 is formed on the protrusion 214 corresponding to the air outlet 211, the connection shaft 221 is installed in the groove 213, the wind deflector 22 is inserted into the opening 215 and is disposed on the front side of the duct cover 21. The connecting shaft 221 is disposed in the groove 213, and the wind deflector 22 is inserted from the opening 215 of the protrusion 214, so that the wind deflector 22 is located at the front side of the air duct cover 21, and the wind deflector 22 rotates towards the front side of the air duct cover 21 and opens the air outlet 211, without increasing the gap between the air duct cover 21 and the air duct foam 23, i.e. increasing the storage space of the refrigerator.

Since the air outlet 211 is preferably disposed between the shelf and the object placed on the lower layer, so as to ensure that the cold air cannot directly blow to the stored object, as shown in fig. 9 and 10, the air duct cover plate 21 provided in the embodiment of the present invention is provided with a push rod hole 216, the push rod hole 216 is disposed on the upper side of the groove 213, the air outlet 211 is disposed on the lower side of the groove 213, and the push plate 223 corresponds to the push rod hole 216. When the shelves 3 are installed, as shown in fig. 6 and 14, the push rod 31 in the push rod hole 216 on the upper side is pushed by the push rod 31 to rotate the connecting shaft 221 and simultaneously drive the wind shield 22 on the lower side for shielding the wind outlet 211 to rotate, so that the wind outlet 211 is opened and the wind outlet 211 is positioned below the shelves 3, and thus cold wind blown out from the wind outlet 211 flows in a gap between the shelves 3 and the stored articles in the lower layer; when the position of the shelf 3 needs to be changed, the shelf 3 is taken out, the wind shield 22 controlling the original position closes the wind outlet 211, and then the shelf 3 is mounted at other positions.

When shelf 3 position changes, need close the air outlet 211 that the original position corresponds, when closing air outlet 211, the user can manually rotate deep bead 22, also can realize through following scheme, as shown in fig. 12, fig. 13, the both ends of connecting axle 221 all overlap and are equipped with torsional spring 224, as shown in fig. 6, fig. 15, torsional spring 224 includes body 2241, first torque 2242 and second torque 2243 set up respectively in body 2241 both ends, body 2241 set up in the clamp plate 222 with between the wind channel apron 21, first torque 2242 butt in the push pedal 223 orientation on the one side of wind channel foam 23, second torque 2243 set up in the clamp plate 222 with between the wind channel apron 21. Compare in manual rotation deep bead 22, make deep bead 22 often be in the closed condition through torsional spring 224, during the installation layer frame 3, promote push pedal 223 through push rod 31 and make deep bead 22 open the air outlet 211 that corresponds, when needing to change layer frame 3 position, only need take out layer frame 3, under torsional spring 224's elasticity effect, can make deep bead 22 reset to close air outlet 211. And the push rod 31 of the shelf 3 is inserted into the push rod hole 216 to be supported by the side wall of the push rod hole 216, and the bottom surface of the shelf 3 is supported by the support plate 42, thereby completing the installation of the shelf 3.

Preferably, as shown in fig. 14, the push plate 223 forms an angle of 180 ° with the wind deflector 22. After the shelf 3 is installed, as shown in fig. 6 and 7, if the push plate 223 and the wind screen 22 below the shelf 3 cannot be kept horizontal, the shelf 3 may be inclined, which affects the storage of articles, therefore, an included angle of 180 ° is formed between the push plate 223 and the wind screen 22, i.e. the shelf is relatively in a horizontal state, after the shelf 3 is installed, the push plate 223 and the wind screen 22 below the shelf 3 are kept horizontal, so that the shelf 3, the push plate 223 and the wind screen 22 are in a parallel state, i.e. the shelf 3 is also kept horizontal, thereby facilitating the storage of articles.

It should be noted that the adjusting holes 41 of the supporting frame disposed on the inner wall of the cabinet 1 are disposed corresponding to the push rod holes 216, so that the supporting plates 42 are disposed corresponding to the push rod holes 216, and the horizontal installation of the shelves 3 in the cabinet 1 is ensured.

Since the push rod 31 extends into the push rod hole 216 when the layer frame 3 is installed, in order to prevent the push rod 31 from contacting with the air duct foam 23 and causing inconvenience in installation of the layer frame 3, an abdicating groove 231 is provided on one surface of the air duct foam 23 facing the air duct cover plate 21 according to the embodiment of the present invention, as shown in fig. 7 and 11, the abdicating groove 231 is used for accommodating the push rod 31. By arranging the abdicating groove 231 on the air duct foam 23, the push rod 31 extending into the rear side is inserted into the abdicating groove 231, so that the push rod 31 is prevented from contacting the air duct foam 23 to affect the installation of the layer frame 3.

Preferably, as shown in fig. 10 and 16, the pressure plate 222 provided in the embodiment of the present invention is provided with a mounting hole 2221, and the air duct cover 21 is provided with a mounting post 212; the mounting hole 2221 and the mounting post 212 are inserted into each other, and a fastening screw is disposed at one end of the mounting post 212 inserted into the mounting hole 2221. The connection mode of mutually inserting the mounting holes 2221 and the mounting posts 212 can realize convenient and quick disassembly of the mounting holes 2221 and the mounting posts, and is favorable for later maintenance and part replacement. And to further ensure the connection and fastening between the pressure plate 222 and the duct cover 21, a screw hole may be opened on the end surface of the mounting post 212 inserted into the mounting hole 2221, and then a screw may be provided in the screw hole for fastening.

Wherein, every group air outlet 211 that sets up on above-mentioned wind channel apron 21 can set up one and also can set up a plurality ofly to arrange the setting along the horizontal direction, set up an air outlet 211 and compare with a plurality of air outlets 211, a plurality of air outlet 211's scheme is owing to reduced the size of every air outlet 211, so can increase the air-out wind speed of every air outlet 211, thereby makes better circulation of cold wind in the storeroom.

In addition, when every group is provided with a plurality of air outlets 211, deep bead 22 can set up to a whole and shelter from a plurality of air outlets 211 in this group simultaneously, also can set up deep bead 22 respectively corresponding to each air outlet 211, compares in a holistic deep bead 22, and it can save material to set up deep bead 22 respectively corresponding to each air outlet 211, need not the extravagant material of part between two adjacent air outlets 211 to can reduce cost.

Furthermore, each air outlet 211 is provided with a plurality of air deflectors 22, so that the plurality of air deflectors 22 can be respectively rotatably connected with the air duct cover plate 21, thereby respectively controlling the opening and closing of each air outlet 211, or can be connected by the following technical scheme, as shown in fig. 6 and 12, each air outlet 211 is at least provided with two air outlets 211, and the air deflectors 22 arranged at the air outlets are connected by the connecting shaft 221 and rotate together. Compare in the scheme of controlling deep bead 22 respectively, the scheme of connecting a plurality of deep beads 22 through connecting axle 221 can be when installation layer frame 3, through the convenient all air outlets 211 of opening in this group of push rod, after the position of regulation layer frame 3, need not rotate corresponding deep bead 22 respectively, and the operation is simpler, convenient.

Preferably, the distance between the air outlets on two adjacent sides is 20mm-30 mm. And this distance adopts 25mm optimally, and it should be pointed out that, the position of air outlet 211 and the position one-to-one of regulation hole 41 set up to when guaranteeing that layer frame 3 is located each position, all be provided with air outlet 211 on the wind channel apron 21 correspondingly, and air outlet 211 is in layer frame below position.

Preferably, an air inlet 217 is arranged on the air duct cover plate 21, the air inlet 217 is arranged in a region of the air duct cover plate 21 close to the top surface of the cabinet body 1, and the distance between a group of air outlets 211 closest to the top surface of the cabinet body 1 and the air inlet 217 is 50mm-100 mm. The distance is optimally 70 mm.

Preferably, the distance between the group of air outlets 211 close to the bottom surface of the cabinet 1 and the bottom surface of the cabinet 1 is 50mm to 100mm, and the distance is 70mm optimally.

It should be noted that the distance between the upper air inlet 217 and the uppermost air outlet 211, and the distance between the lowermost air outlet 211 and the bottom surface of the cabinet 1 are determined according to the size of the articles to be stored in the refrigerator. If the size of the stored article is larger than the expected size, the adjustment is made by changing the position of the shelves 3.

In addition, the layer frame 3 is installed on the air duct assembly 2, and after the air outlet 211 is opened, the cold air blown out from the upper air inlet 217 arranged on the uppermost layer of the air duct assembly and the air outlet 211 opened below the layer frame 3 flows above the stored articles, and cannot directly blow to the articles, and the cold air flows back from the gap below the air duct assembly 2 to form circulation, as shown in fig. 7, so that the air inside the refrigerated cabinet can fully flow, the stored articles cannot be partially frozen, and the storage quality is improved.

In another aspect, an embodiment of the present invention further provides a refrigerator, which includes a cabinet body 1 and the air duct system for a refrigerator according to any one of the above technical solutions, where the air duct system is disposed in the cabinet body 1.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a ducting system for freezer which characterized in that, is including setting up the internal wind channel subassembly in freezer, the wind channel subassembly includes the wind channel apron, be provided with multiunit air outlet on the wind channel apron, the multiunit the air outlet is arranged from top to bottom, every group air outlet department all is provided with the deep bead, the deep bead with swing joint between the wind channel apron.

2. The ducting system for a refrigerated cabinet of claim 1 further comprising a shelf, wherein the shelf is disposed in the cabinet body, and the wind deflector is provided with a rotation mechanism, and when the shelf is installed, the shelf can push the rotation mechanism located below the shelf and close to the shelf, so that the rotation mechanism drives the wind deflector to open the corresponding air outlet.

3. The air duct system for the refrigerated cabinet as claimed in claim 2, wherein the rotating mechanism comprises a connecting shaft rotatably connected with the air duct cover plate, the connecting shaft is connected with the wind deflector, a push plate is arranged on the connecting shaft, and a push rod is arranged on the side of the shelf facing the air duct cover plate and used for pushing the push plate.

4. The air duct system for the refrigerated cabinet according to claim 3, wherein a groove is formed on the air duct cover plate, a notch of the groove faces the air duct foam on the rear side of the air duct cover plate, a protrusion is formed on one side of the air duct cover plate, which is far away from the air duct foam, an opening is formed on the protrusion, which corresponds to the air outlet, the connecting shaft is installed in the groove, and the wind deflector is inserted into the opening and arranged on the front side of the air duct cover plate.

5. The air duct system for the refrigerator according to claim 4, wherein the air duct cover plate is provided with a push rod hole, the push rod hole is disposed at an upper side of the groove, the air outlet is disposed at a lower side of the groove, and the push plate corresponds to the push rod hole.

6. The air duct system for the refrigerated cabinet as claimed in claim 5, wherein a torsion spring is sleeved on each of two ends of the connecting shaft, a pressing plate is arranged on the surface of the air duct cover plate facing the air duct foam, and the torsion spring is arranged between the pressing plate and the air duct cover plate.

7. The duct system according to claim 6, wherein the torsion spring includes a body, a first torsion arm and a second torsion arm, the first torsion arm and the second torsion arm are respectively disposed at two ends of the body, the body is disposed between the pressing plate and the duct cover plate, the first torsion arm abuts against a surface of the pushing plate facing the duct foam, and the second torsion arm is disposed between the pressing plate and the duct cover plate.

8. A ducting system as claimed at claim 3 wherein the push plate forms an angle of 180 ° with the wind deflector.

9. The duct system for a refrigerated cabinet of claim 3, wherein a relief groove is provided on a face of the duct foam facing the duct cover plate, the relief groove being configured to receive the push rod.

10. The air duct system for the refrigerated cabinet as claimed in claim 6, wherein the pressing plate is provided with a mounting hole, the air duct cover plate is provided with a mounting post, the mounting hole and the mounting post are inserted into each other, and one end of the mounting post inserted into the mounting hole is provided with a fastening screw.

11. A ducting system as claimed at any one of claims 3 to 10 wherein at least two of the outlets are provided in each of the outlets, and the wind deflectors provided at the outlets in the same group are connected by the connecting shaft and rotate together.

12. A ducting system as claimed at any one of claims 1 to 10 wherein the distance between two adjacent sets of outlets is in the range 20mm to 30 mm.

13. The air duct system for refrigerated cabinets of any of claims 1-10, wherein the air duct cover plate is provided with an air inlet, the air inlet is arranged in a region of the air duct cover plate close to the top surface of the cabinet body, and a distance between a group of air outlets closest to the top surface of the cabinet body and the air inlet is 50mm-100 mm.

14. A ducting system as claimed at any one of claims 1 to 10 wherein the distance between the set of outlet vents adjacent the bottom surface of the cabinet and the bottom surface of the cabinet is in the range 50mm to 100 mm.

15. A refrigerated cabinet comprising a cabinet body and a ducting system for a refrigerated cabinet as claimed in any one of claims 1 to 14 provided in the cabinet body.