A refrigerated container air regulating duct

Abstract

The utility model relates to cold storage box technical field, concretely relates to a cold storage box regulation air duct, including through the vertical installation purline horizontal installation in the horizontal shelf of cold storage box, and the inboard side of horizontal shelf is equipped with the embedded groove, still include: the motion shelf, inboard side end rotation is installed in the embedded groove department of horizontal shelf, air duct subassembly, including the air duct backplate of installation in the inboard side cold storage box case wall department of motion shelf, and the fan and the flow vane of installation on the air duct backplate, and the transmission unit is inserted in the air duct backplate and is located flow vane both sides department, and the motion shelf is through drive transmission unit and realizes the overturning adjustment of flow vane and lifts, be equipped with the motion shelf in the place near the air outlet, can when the article on the motion shelf is placed and initiatively adjust the air -out wind direction of flow vane, can let the cold air of smooth completion case air circulation, be favorable to through the cold air and inside circulation and guarantee the evenness of temperature in the case, can avoid the problem that local temperature is too low and influences other area temperature because of the air direction obstruction.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, specifically to a refrigerator air conditioning duct. Background Technology

[0002] Refrigerated boxes are widely used in hospitals, research institutes, laboratories, and other institutions where all stored items need to be refrigerated. During use, it has been found that if reagents and medicines are stored near the air outlet of a medical refrigerator, it will affect the airflow from the air duct, interfere with the circulation of cold air inside the box, and affect the stability of the internal temperature.

[0003] In existing refrigerators, the shelf structure and air duct back panel are often adjacent to each other. The refrigerator shelves are often crammed with items, and users cannot follow the product usage rules, inadvertently blocking the direct airflow from the vents, affecting the direction of air circulation. Users cannot perceive short-term temperature fluctuations in the refrigerator, and increased temperature fluctuations can affect the safety of stored items. This can lead to rapid temperature drops in some areas, even freezing of items in some places, while other areas remain warm, which is detrimental to the temperature uniformity of the entire refrigerator.

[0004] Therefore, considering the need to address the issue of stacked storage items affecting the airflow from the direct-output vent during daily use, we propose a system that allows for active adjustment of the airflow direction when items are stacked. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings mentioned in the background art and provide a refrigerated box air conditioning duct.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A refrigerator air conditioning duct includes a horizontal shelf installed horizontally inside the refrigerator via vertically mounted purlins, the horizontal shelf having an insert groove on its inner side, and further includes: The movable shelf is rotatably mounted at the mounting slot of the horizontal shelf at its inner end. The air duct assembly includes an air duct back plate installed on the inner side of the refrigerator wall of the moving shelf, and a fan and a guide vane installed on the air duct back plate. A transmission unit is inserted in the air duct back plate and located on both sides of the guide vane. The moving shelf drives the transmission unit to raise and lower, thereby adjusting the rotation of the guide vanes.

[0007] Preferably, the air duct back plate includes a mounting base with a cover that can be detachably installed, and the mounting base has an inner convex plate and an outer convex plate on the inner and outer sides of the air outlet, respectively; The inner convex plate is provided with a vertically arranged vertical guide groove; The outer convex plate is provided with multiple vertically distributed rotating holes.

[0008] Preferably, the guide vane is provided with a shaft for rotatably mounting at the rotating hole, and the guide vane is provided with an off-axis protrusion at the inner end of the shaft.

[0009] Preferably, the transmission unit includes a mounting plate with a horizontal moving groove at one end, and the off-axis protrusion is inserted into the horizontal moving groove via the vertical guide groove; The horizontal moving groove and the vertical guide groove have horizontal groove diameters that are greater than the diameter of the off-axis protrusion.

[0010] Preferably, a side insert plate is fixedly connected to the other end of the mounting plate, and the mounting cover is provided with a vertical slot for slidingly inserting the side insert plate; A vertical connecting plate is fixedly connected to the bottom of the mounting plate, and two blocks are provided at the lower end of the vertical connecting plate; The moving shelf is provided with a flip groove for locking between the two stops.

[0011] Preferably, a torsion spring or spring is installed between the horizontal shelf and the movable shelf, the torsion spring or spring being used to flip and lift the movable shelf upward.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The refrigerator features an adjustable air duct with a movable shelf near the air outlet. When items are placed on the movable shelf, the airflow direction of the guide fan can be actively adjusted, allowing the cold air to circulate smoothly within the refrigerator. This helps ensure the uniformity of the temperature inside the refrigerator through internal cold air circulation, and avoids the problem of localized low temperatures caused by obstructed airflow, which could affect the temperature of other areas. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is one of the schematic diagrams of the overall structure of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the installation of the horizontal shelf and the movable shelf of this utility model; Figure 4 This is one of the schematic diagrams of the air duct assembly of this utility model; Figure 5 This is the second schematic diagram of the air duct assembly of this utility model; Figure 6 This is a schematic diagram of the installation of the guide vane and transmission unit of this utility model.

[0014] The meanings of the labels in the diagram are as follows: 1. Horizontal shelf; 2. Vertical purlin; 3. Moving shelf; 31. Tilting groove; 4. Air duct back plate; 41. Mounting cover; 401. Vertical slot; 411. Inner convex plate; 4111. Vertical guide groove; 412. Outer convex plate; 4121. Rotating hole; 42. Cover; 5. Guide fan blade; 51. Offset axial protrusion; 52. Shaft; 6. Fan; 7. Transmission unit; 71. Mounting plate; 72. Side insert plate; 73. Vertical connecting plate; 731. Stop block; 701. Horizontal moving slot. Detailed Implementation

[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Please see Figures 1-6 The present invention will describe the above technical solution in detail through the following embodiments: In this embodiment, the air duct of the refrigerator is adjusted, such as... Figure 1 and Figure 2 The positional relationship includes a horizontal shelf 1 installed horizontally inside the refrigerator by purlins 2 installed vertically around the perimeter. The existing horizontal shelf 1 is a single horizontal plate, while the horizontal shelf 1 of this application is equipped with a movable shelf 3 near the air duct assembly.

[0017] It should be noted that both the horizontal shelf 1 and the movable shelf 3 can be used to support refrigerated storage items. In this embodiment, a spring is installed between the horizontal shelf 1 and the movable shelf 3. The movable shelf 3, as... Figures 1-3 The structure shown involves a spring that causes the movable shelf 3 to flip upwards and tilt outwards, with a hinge connecting the angled sections. When refrigerated items such as reagents or medicines are placed on the movable shelf 3, the spring compresses the shelf 3, causing it to... Figures 1 to 2 The transformation ensures that the moving shelf 3 and the horizontal shelf 1 remain on the same plane.

[0018] like Figures 4-6The structure shown includes an air duct assembly comprising an air duct back plate 4 installed on the inner wall of the refrigerator compartment of the moving shelf 3. Fans 6 and guide vanes 5 are installed at both ends of the air duct on the air duct back plate 4. It is necessary to consider changing the direction of the air duct when refrigerated storage items are placed near the guide vanes 5. Therefore, a transmission unit 7 is inserted in the air duct back plate 4 and located on both sides of the guide vanes 5. In this embodiment, the front end of the guide vanes 5 adopts a corrugated design, which can reduce the contact area or friction force with the items during movement, and at the same time, the flow of cold air can be improved through the corrugation gaps.

[0019] Specifically, in this embodiment, the duct back plate 4 includes a mounting base 41 on which a cover 42 is detachably installed, which facilitates the replacement of internal components. The mounting base 41 has an inner convex plate 411 and an outer convex plate 412 on its inner and outer sides at the air outlet. In order to realize the rotation of the guide vane 5, the guide vane 5 in this embodiment is provided with a shaft 52 for rotating and installed at the rotation hole 4121. The guide vane 5 is provided with an off-axis convex rod 51 at the inner end of the shaft 52. The inner convex plate 411 is provided with a vertically arranged vertical guide groove 4111.

[0020] In this embodiment, the transmission unit 7 includes a mounting plate 71 with horizontal moving grooves 701 and side insert plates 72 at both ends. An off-axis protruding rod 51 is inserted into the horizontal moving groove 701 via a vertical guide groove 4111. It should be noted that because the guide vane 5 rotates, the off-axis protruding rod 51 will shift horizontally. Therefore, if... Figure 4 The structure shown has a horizontal moving groove 701 and a vertical guide groove 4111 with a horizontal groove diameter larger than the diameter of the off-axis protrusion 51, which can satisfy the flipping action of the guide vane 5.

[0021] To achieve the function of automatically adjusting the airflow direction of the guide fan 5 upward when items are placed inside to avoid straight airflow, and resetting to straight airflow when items are removed, a vertical connecting plate 73 is fixedly connected below the mounting plate 71. Two blocks 731 are provided at the lower end of the vertical connecting plate 73. At the same time, the moving shelf 3 is provided with a flip groove 31 for locking between the two blocks 731. That is, when the moving shelf 3 is flattened or flipped up along the hinge, it can drive the transmission unit 7 to rise and fall through the blocks 731, thereby realizing the airflow direction adjustment of the guide fan 5.

[0022] The working principle of the adjustable air duct of the refrigerator in this embodiment is as follows: The power source of the air duct adjustable air duct is the downward force generated by the gravity of the moving shelf 3, which generates a downward force through the transmission unit 7 and moves downward, driving the air guide fan 5 to rotate and flip upward along the shaft 52, thereby adjusting the direction of the air and ensuring the uniformity of cold air circulation in the refrigerator. When the moving shelf 3 moves downward, the arc trajectory generated will not cause the vertical lifting and lowering trajectory of the transmission unit 7 to deviate. When the stored items in the area of ​​the moving shelf 3 are removed, it does not affect the air supply of the air outlet, and the air guide fan 5 returns to its original straight blowing state.

[0023] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A refrigerator air conditioning duct, comprising a horizontal shelf (1) installed horizontally inside the refrigerator via vertically mounted purlins (2), wherein the horizontal shelf (1) has an insert groove on its inner side, characterized in that: Also includes: The moving shelf (3) is rotatably installed at the mounting slot of the horizontal shelf (1) at its inner end; The air duct assembly includes an air duct back plate (4) installed on the inner side of the refrigerator box wall of the moving shelf (3), and a fan (6) and a guide vane (5) installed on the air duct back plate (4). A transmission unit (7) is inserted in the air duct back plate (4) and located on both sides of the guide vane (5). The moving shelf (3) drives the transmission unit (7) to lift and lower, thereby enabling the guide vane (5) to rotate and adjust.

2. The adjustable air duct of the refrigerator as described in claim 1, characterized in that: The back panel (4) of the air duct includes a mounting base (41) on which a cover (42) is detachably installed. The mounting base (41) has an inner convex plate (411) and an outer convex plate (412) on the inner and outer sides of the air outlet. The inner convex plate (411) is provided with a vertically arranged vertical guide groove (4111). The outer convex plate (412) is provided with a plurality of vertically distributed rotating holes (4121).

3. The adjustable air duct of the refrigerator as described in claim 2, characterized in that: The guide vane (5) is provided with a shaft (52) for rotating and installed at the rotating hole (4121), and the guide vane (5) is provided with an off-axis protrusion (51) at the inner end of the shaft (52).

4. The adjustable air duct of the refrigerator as described in claim 3, characterized in that: The transmission unit (7) includes a mounting plate (71) with a horizontal moving groove (701) at one end, and the off-axis protrusion (51) is inserted into the horizontal moving groove (701) via the vertical guide groove (4111). The horizontal moving groove (701) and the vertical guide groove (4111) have a horizontal groove diameter that is larger than the diameter of the off-axis protrusion (51).

5. The adjustable air duct of the refrigerator as described in claim 4, characterized in that: The other end of the mounting plate (71) is fixedly connected to a side insert plate (72), and the mounting cover (41) is provided with a vertical slot (401) for slidingly inserting the side insert plate (72). A vertical connecting plate (73) is fixedly connected below the mounting plate (71), and two blocks (731) are provided at the lower end of the vertical connecting plate (73). The moving shelf (3) is provided with a flip groove (31) for locking between the two stops (731).

6. The adjustable air duct of the refrigerator as described in claim 1, characterized in that: A torsion spring or spring is installed between the horizontal shelf (1) and the moving shelf (3), the torsion spring or spring being used to flip the moving shelf (3) upward and lift it up.

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