Adjustable cold storage heat preservation door

By installing a rotating mechanism and a cleaning plate on the cold storage insulated door, the problem of gaps caused by impurities when the roller shutter door is closed is solved, achieving effective sealing of cold air and improving the insulation effect of the cold storage.

CN224188838UActive Publication Date: 2026-05-01JINAN YUEGONG REFRIGERATING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINAN YUEGONG REFRIGERATING EQUIP CO LTD
Filing Date
2025-05-08
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

When the roller shutter door is closed, impurities may remain in the area where it contacts the ground, creating gaps that allow cold air to escape and reduce its heat retention.

Method used

An adjustable cold storage insulation door was designed. By setting a rotating mechanism on the roller shutter door, the cleaning plate is driven to tilt and contact the ground. As the roller shutter door moves down, the cleaning plate transfers impurities from the ground and forms a seal with the arc groove to prevent cold air from escaping.

Benefits of technology

It effectively prevents cold air leakage, improves the insulation effect of cold storage, reduces cold air loss, and enhances the insulation performance of cold storage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224188838U_ABST
    Figure CN224188838U_ABST
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Abstract

The utility model relates to the technical field of cold storage heat preservation doors, and discloses an adjustable cold storage heat preservation door which comprises a door frame, a roller shutter door is arranged on the door frame, extension rods which are correspondingly arranged on the two sides are arranged on one side of the roller shutter door, a cleaning plate is rotationally arranged on the extension rods, and a rotating mechanism for driving the cleaning plate to rotate is arranged on the door frame. Compared with the prior art, the roller shutter door cleaning device has the advantages that when the roller shutter door is closed, the ground under the roller shutter door can be automatically cleaned, so that gaps are prevented when the roller shutter door is closed, and the roller shutter door cleaning device is convenient to use. Therefore, the heat-insulating effect is ensured.
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Description

An adjustable cold storage insulated door Technical Field

[0001] This utility model relates to the field of cold storage insulation door technology, specifically to an adjustable cold storage insulation door. Background Technology

[0002] Cold storage doors are doors installed in cold storage equipment, frozen warehouses, and other refrigerated environments to provide insulation and airtightness.

[0003] Traditionally, cold storage facilities mostly use steel insulated sliding doors, which open slowly, resulting in long waiting times for passage. This leads to a continuous loss of cold air from the warehouse, affecting the insulation effect and reducing the preservation efficiency of the cold storage.

[0004] To improve opening speed, existing cold storage insulated doors typically use a roller shutter structure paired with an automatic control system. This system can sense pedestrians and vehicles to quickly open and close the doors, thereby reducing cold air loss and improving the insulation effect of the cold storage. However, roller shutter structures usually open and close by moving up and down. When closed, one end contacts the ground. If there are debris in the area where it contacts the ground, gaps will be created, causing cold air to slowly leak out. It is necessary to remove the debris from the closing area in a timely manner. Summary of the Invention

[0005] The technical problem this invention aims to solve is that when the roller shutter door is closed, impurities exist at the point of contact with the ground, creating gaps that cause cold air to leak out and reduce the heat preservation effect.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an adjustable cold storage insulation door, including a door frame, a roller shutter door on the door frame, an extension rod arranged on both sides on one side of the roller shutter door, a cleaning plate rotatably mounted on the extension rod, a rotating mechanism for driving the cleaning plate to rotate on the door frame, both the roller shutter door and the cleaning plate having an arc-shaped structure at one end, and an arc-shaped groove on one side of the cleaning plate that cooperates with the end of the roller shutter door. When the roller shutter door moves down, the cleaning plate is tilted by the rotating mechanism, and the cleaning plate tilts and contacts the ground. As the roller shutter door continues to move down, the cleaning plate rotates and transfers impurities from the ground.

[0007] As an improvement, the cleaning plate includes a rotating shaft rotatably mounted on an extension rod, a connecting plate on the rotating shaft, and a push plate on the connecting plate.

[0008] As an improvement, the rotating mechanism includes a gear at one end of the rotating shaft, a fixed rod on one side of the gantry, and a drive gear on the fixed rod to rotate the rack. The roller shutter door drives the gear to move down and mesh with the rack.

[0009] As an improvement, the gantry is provided with a connecting rod, and the connecting rod is provided with a cleaning roller for cleaning one side of the push plate.

[0010] As an improvement, a groove is provided on one side of the push plate. When the roller shutter door moves down, it drives the push plate to rotate. When the push plate is parallel to and in contact with the ground, the impurities below the groove do not affect the contact between the push plate and the ground.

[0011] As an improvement, the gantry is equipped with a motor that drives the roller shutter door to retract, and the gantry is also equipped with a control unit that controls the rotation of the motor.

[0012] The advantages of this utility model compared with the prior art are as follows: when the roller shutter door is closed, the cleaning plate is driven to rotate by a rotating mechanism. The cleaning plate tilts and contacts the ground. As the roller shutter door moves down, the cleaning plate sweeps away the impurities on the ground near the roller shutter door. At the same time, an arc-shaped groove is set on the cleaning plate to cooperate with the roller shutter door to form a seal and improve the heat preservation effect. Attached Figure Description

[0013] Figure 1 is a perspective view of an adjustable cold storage insulated door according to this utility model.

[0014] Figure 2 is a perspective view of an adjustable cold storage insulated door according to this utility model.

[0015] Figure 3 is a schematic diagram of the operation of an adjustable rotating mechanism for a cold storage insulation door according to this utility model.

[0016] Figure 4 is an enlarged view of part A of an adjustable cold storage insulation door according to this utility model.

[0017] Figure 5 is a schematic diagram of the closing of an adjustable cold storage insulated roller shutter door according to this utility model.

[0018] As shown in the figure: 1. Door frame; 2. Roller shutter door; 3. Extension rod; 4. Cleaning plate; 5. Rotating mechanism; 6. Arc groove; 8. Connecting plate; 9. Push plate; 10. Groove; 11. Gear; 12. Fixing rod; 13. Rack; 14. Connecting rod; 15. Cleaning roller; 16. Motor; 17. Control unit. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] As shown in Figures 1 to 3, an adjustable cold storage insulation door includes a door frame 1, a roller shutter door 2 mounted on the door frame 1, a motor 16 for driving the roller shutter door 2 to retract, and a control unit 17 for controlling the rotation of the motor 16. One side of the roller shutter door 2 has extension rods 3 arranged on both sides, and a cleaning plate 4 is rotatably mounted on the extension rods 3. The door frame 1 has a rotating mechanism 5 for driving the cleaning plate 4 to rotate. Both the roller shutter door 2 and the cleaning plate 4 have an arc-shaped structure at one end. One side of the cleaning plate 4 has an arc-shaped groove 6 that mates with the end of the roller shutter door 2. When the roller shutter door 2 moves downward, the rotating mechanism 5 tilts the cleaning plate 4, causing it to tilt and contact the ground. As the roller shutter door 2 continues to move downward, the cleaning plate 4 rotates, transferring impurities from the ground. The control unit 17 controls the rotation of the cleaning plate 4. The motor 16 starts and stops, and controls the opening and closing of the roller shutter door 2. When the roller shutter door 2 is open, goods are transported into the cold storage, usually by transport vehicles or other means. Inevitably, there will be impurities on the ground. When the roller shutter door 2 is closed, gaps will be created due to the presence of impurities. By setting up a cleaning plate 4, when the roller shutter door 2 descends, it drives the rotating mechanism 5. The rotating mechanism 5 drives the cleaning plate 4 to tilt, so that the cleaning plate 4 tilts when it contacts the ground. When the cleaning plate 4 contacts the ground, one end of the cleaning plate 4 tilts towards the roller shutter door 2. The roller shutter door 2 continues to move down, driving the cleaning plate 4 to rotate. While the cleaning plate 4 rotates, one end slides on the ground, pushing away the impurities below the roller shutter door 2. When the cleaning plate 4 is parallel to the ground, one end of the roller shutter door 2 enters the arc groove 6, and the roller shutter door 2 is closed.

[0021] As shown in Figures 2 to 5, the cleaning plate 4 includes a rotating shaft rotatably mounted on the extension rod 3. A connecting plate 8 is mounted on the rotating shaft, and a push plate 9 is mounted on the connecting plate 8. A connecting rod 14 is mounted on the door frame 1, and a cleaning roller 15 for cleaning one side of the push plate 9 is mounted on the connecting rod 14. A groove 10 is provided on one side of the push plate 9. When the roller shutter 2 moves downward, it drives the push plate 9 to rotate. When the push plate 9 is parallel to and in contact with the ground, impurities below the groove 10 do not affect the contact between the push plate 9 and the ground. When the roller shutter 2 is not closed, the cleaning plate 4 is in a vertical state under gravity. In order to enable the cleaning plate 4 to rotate when the roller shutter 2 moves downward... The cleaning plate 4 is able to rotate, so that when the cleaning plate 4 is about to contact the ground, the rotating mechanism 5 is set to tilt the cleaning plate 4. Thus, when the cleaning plate 4 contacts the ground, the cleaning plate 4 is in an inclined state. Since the cleaning plate 4 can only clean a limited area on one side, in order to prevent impurities from causing gaps when the cleaning plate 4 is in contact with the ground, a groove 10 is set so that the uncleaned area is hollow, thus not affecting the contact between the cleaning plate 4 and the ground. By setting a cleaning roller 15, when the roller shutter door 2 rises, the side of the cleaning plate 4 that is in contact with the ground will pass through the cleaning roller 15, and the cleaning roller 15 will sweep off the impurities, keeping the cleaning plate 4 clean.

[0022] As shown in Figures 2, 3, and 4, the rotating mechanism 5 includes a gear 11 disposed at one end of the rotating shaft. A fixed rod 12 is provided on one side of the gantry 1, and a rack 13 driving the gear 11 to rotate is provided on the fixed rod 12. The roller shutter door 2 drives the gear 11 to move down and mesh with the rack 13. When the cleaning plate 4 is about to contact the ground, the rack 13 meshes with the gear 11, and the roller shutter door 2 moves down. Since the rack 13 does not move, it forces the gear 11 to rotate. The rotation of the gear 11 drives the rotating shaft, and the rotating shaft drives the push plate 9 to rotate. The push plate 9 tilts. When the end of the push plate 9 contacts the ground, the rack 13 and the gear 11 no longer mesh.

[0023] In practical use, the roller shutter 2 moves upward, and the end of the roller shutter 2 separates from the arc groove 6. The cleaning plate 4 gradually becomes vertical under the action of gravity. When the object is transported, impurities are generated below the roller shutter 2. The roller shutter 2 moves downward. When the cleaning plate 4 is about to contact the ground, the rotating mechanism 5 drives the cleaning plate 4 to rotate. The cleaning plate 4 tilts and then contacts the ground. The roller shutter 2 continues to move downward, driving the cleaning plate 4 to rotate. One end of the cleaning plate 4 slides on the ground, pushing the impurities from below the roller shutter 2 to one side. When the cleaning plate 4 is in contact with the ground, one end of the roller shutter 2 enters the arc groove 6. Since the cleaning plate 4 is rotating, the arc groove 6 is set to be relatively wide. When the cleaning plate 4 is in contact with the ground, the end of the roller shutter 2 is in contact with one side of the arc groove 6.

[0024] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An adjustable cold storage insulated door, comprising a door frame (1), wherein a roller shutter door (2) is provided on the door frame (1), characterized in that: The roller shutter door (2) has extension rods (3) arranged on both sides on one side. A cleaning plate (4) is rotatably mounted on the extension rods (3). A rotating mechanism (5) for driving the cleaning plate (4) to rotate is provided on the door frame (1). One end of the roller shutter door (2) and the cleaning plate (4) are both arc-shaped structures. An arc-shaped groove (6) that matches the end of the roller shutter door (2) is provided on one side of the cleaning plate (4). The roller shutter door (2) moves down, and the cleaning plate (4) is tilted by the rotating mechanism (5). The cleaning plate (4) tilts and contacts the ground. The roller shutter door (2) continues to move down, and the cleaning plate (4) rotates while transferring the impurities on the ground.

2. The adjustable cold storage insulation door according to claim 1, characterized in that: The cleaning plate (4) includes a rotating shaft rotatably mounted on the extension rod (3), a connecting plate (8) is provided on the rotating shaft, and a push plate (9) is provided on the connecting plate (8).

3. An adjustable cold storage insulation door according to claim 2, characterized in that: The rotating mechanism (5) includes a gear (11) at one end of the rotating shaft. A fixed rod (12) is provided on one side of the gantry (1). The fixed rod (12) is provided with a drive gear (11) to rotate a rack (13). The roller shutter door (2) drives the gear (11) to move down and mesh with the rack (13).

4. An adjustable cold storage insulation door according to claim 2, characterized in that: The gantry (1) is provided with a connecting rod (14), and the connecting rod (14) is provided with a cleaning roller (15) for cleaning one side of the push plate (9).

5. An adjustable cold storage insulation door according to claim 2, characterized in that: The push plate (9) has a groove (10) on one side. When the roller shutter door (2) moves down, it drives the push plate (9) to rotate. When the push plate (9) is parallel to and in contact with the ground, the impurities below the groove (10) do not affect the contact between the push plate (9) and the ground.

6. An adjustable cold storage insulation door according to claim 1, characterized in that: The gantry (1) is equipped with a motor (16) for driving the roller shutter door (2) to retract, and the gantry (1) is equipped with a control unit (17) for controlling the rotation of the motor (16).