A fresh-keeping freezer
By installing a foldable ramp and connector between the cold storage room and the storage door, the problems of ramp offset and door self-closing are solved, realizing convenient operation of automatic ramp and door operation, and improving transportation efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAISE FUKENG FOOD CO LTD
- Filing Date
- 2025-09-17
- Publication Date
- 2026-08-04
AI Technical Summary
The existing slopes of cold storage facilities are prone to misalignment with the entrances and exits, requiring frequent adjustments and requiring workers to manually hold the doors closed, which affects transportation efficiency and safety.
A foldable ramp and folding connector are installed between the cold storage room and the storage door. The ramp unfolds or folds automatically when the storage door is rotated, preventing the storage door from closing by itself.
It improves the convenience and safety of cargo transportation, reduces the frequency of manual ramp adjustments, and enhances transportation efficiency and warehouse door functionality.
Smart Images

Figure CN224593527U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of cold storage technology, and more specifically to a cold storage facility for fresh food preservation. Background Technology
[0002] Fruit cold storage is a type of cold storage used for preserving and storing fresh fruit. By lowering the temperature, regulating humidity, and controlling gas composition, it inhibits the respiration of fruit and the growth of microorganisms, thus extending the shelf life of the fruit. The refrigeration system lowers the temperature inside the storage room, inhibits the respiration of the fruit, slows down its metabolic process, and controls the humidity and gas composition inside the storage room to reduce water evaporation, thereby reducing the incidence of pathogens and the rate of fruit rot, and thus achieving the purpose of preventing decay and extending the storage period.
[0003] However, in practice, it has been noted that because cold storage facilities are generally composed of multiple layers of materials, such as load-bearing layers, insulation layers, and moisture-proof layers, a height difference is created between the entrance / exit of the cold storage facility and the ground. When handling goods, transfer vehicles are usually used for transportation. This requires workers to open the storage door and use the ramp to facilitate the entry and exit of the transfer vehicle. As the number of transports increases, the ramp will shift from the entrance / exit of the cold storage facility, so the position of the ramp needs to be adjusted frequently. In addition, workers need to hold the storage door to prevent it from closing by itself. These problems affect transportation efficiency, and ramps placed haphazardly are prone to being lost during use, which in turn affects the normal transfer of goods. Utility Model Content
[0004] The purpose of this invention is to provide a cold storage facility that incorporates a folding ramp and a folding connector between the cold storage room and the door. When the door is opened, the folding ramp and connector are tilted at the exit position, facilitating the entry and exit of transport vehicles. Simultaneously, it prevents the door from automatically closing during cargo handling. This addresses the technical problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A cold storage facility includes a cold storage room, a door is rotatably connected to the side of the cold storage room via a pin, and an entrance and exit corresponding to the door are opened at the end of the cold storage room, with a folding ramp at the bottom of the entrance and exit.
[0007] The folding ramp includes an inclined main board, and a folding connector is inclinedly provided at one corner of the inclined main board near the warehouse door. A dovetail-shaped slide groove is provided at the bottom of the warehouse door, and an adjustable slider that cooperates with the folding connector is also slidably fitted in the dovetail-shaped slide groove.
[0008] As a further technical solution of this utility model, the bottom of the inclined main board is provided with triangular supports in a rectangular array, and the bottom of the triangular supports is flush with the bottom of the cold storage room. Moreover, each of the triangular supports is rotatably connected to the inclined main board via a hinge.
[0009] As a further technical solution of this utility model, the folding connector includes a triangular auxiliary inclined plate that rotates with the inclined main board, and a connecting ball head bracket is rotated and engaged on the side of the triangular auxiliary inclined plate near the warehouse door.
[0010] As a further technical solution of this utility model, the adjustable slider includes a slider body that slides in cooperation with the inner side of the dovetail groove, and the two ends of the slider body are respectively provided with a rotating ball head holder and a locking bolt.
[0011] As a further technical solution of this utility model, the locking bolt is threadedly connected to the slider body, and the end of the locking bolt passes through the slider body and fits against the end of the dovetail groove, while the rotating ball head holder is rotated with the other end of the slider body.
[0012] As a further technical solution of this utility model, a double-ended ball joint is provided between the triangular auxiliary inclined plate and the warehouse door, and the two ends of the double-ended ball joint are respectively engaged with the connecting ball joint seat and the rotating ball joint seat.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, after the warehouse door is opened, the inclined main board will be inclinedly installed at the bottom of the warehouse door to facilitate the transport of goods. The inclined main board provides a ramp, which facilitates the transfer vehicle for transporting goods to enter and exit the cold storage. In addition, the lower part of the inclined main board is also provided with triangular brackets in a rectangular array, which can strengthen the structural strength of the inclined main board and prevent the inclined main board from bending after long-term use.
[0015] 2. In this utility model, when the warehouse door is closed, the triangular auxiliary ramp at one end of the inclined main board will fold through the hinge at the connection point, so that the triangular auxiliary ramp will fold to the bottom of the inclined main board. Since the end of the triangular auxiliary ramp is connected to the warehouse door through a double-ended ball joint connecting rod, when the warehouse door is opened, the folding connector will drive the folding ramp to unfold. When the warehouse door is closed, the folding connector and the folding ramp can be folded together, thereby realizing the automatic unfolding and retraction of the ramp and increasing the functionality.
[0016] 3. In this utility model, when the folding ramp and folding connector are folded or unfolded, the position of the end of the double-ended ball joint rod on the side of the warehouse door can be adjusted by the cooperation of the slider body and the rotating ball joint seat. Furthermore, after tightening the locking bolt, the position of the slider body inside the dovetail groove can be fixed. Moreover, after unfolding, the folding ramp and folding connector can use the double-ended ball joint rod to hold the top post of the warehouse door, preventing the warehouse door from closing automatically during the handling of goods. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model in use.
[0018] Figure 2 This utility model Figure 1 Another perspective view.
[0019] Figure 3 This utility model Figure 2 Enlarged schematic diagram of part A.
[0020] Figure 4 This utility model Figure 2 A partial structural diagram.
[0021] Figure 5 This utility model Figure 4 Enlarged schematic diagram of part B.
[0022] Figure 6 This is a schematic diagram of the bottom structure of the folding ramp and folding connector in this utility model.
[0023] Figure 7 This utility model Figure 6 Enlarged schematic diagram of part C.
[0024] In the picture:
[0025] 1-Cold storage room, 2-Refrigeration outdoor unit, 3-Storage door, 4-Folding ramp, 41-Inclined main board, 42-Triangular bracket, 5-Insulation layer, 6-Dovetail slide, 7-Adjustable slider, 71-Slider body, 72-Rotating ball head holder, 73-Locking bolt, 8-Folding connector, 81-Triangular auxiliary ramp, 82-Connecting ball head holder, 83-Double-end ball head connecting rod. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-7 This utility model embodiment provides a cold storage for fresh food, including a cold storage room 1. The side of the cold storage room 1 is rotatably connected to a storage door 3 by a pin, and the end of the cold storage room 1 is provided with an entrance and exit corresponding to the storage door 3. The bottom of the entrance and exit is provided with a folding ramp 4.
[0028] The folding ramp 4 includes an inclined main board 41. A folding connector 8 is inclinedly arranged at the corner of the inclined main board 41 near the warehouse door 3. A dovetail-shaped slide groove 6 is provided at the bottom of the warehouse door 3, and an adjustable slider 7 that cooperates with the folding connector 8 is also slidably engaged in the dovetail-shaped slide groove 6.
[0029] Furthermore, the bottom of the inclined main board 41 is provided with triangular supports 42 in a rectangular array, and the bottom of the triangular supports 42 is flush with the bottom of the cold storage room 1. Moreover, each of the triangular supports 42 is rotatably connected to the inclined main board 41 by a hinge.
[0030] By adopting the above technical solution, after the warehouse door 3 is opened, the inclined main board 4-1 will be inclinedly set at the bottom of the warehouse door 3 for the quasi-transport of goods. The inclined main board 41 provides a ramp for the convenience of the transfer vehicle for transporting goods to enter and exit the cold storage 1. Moreover, the inclined main board 41 is also provided with a rectangular array of triangular brackets 42 below it, which can strengthen the structural strength of the inclined main board 41 and prevent the inclined main board 41 from bending after long-term use.
[0031] Furthermore, the folding connector 8 includes a triangular auxiliary inclined plate 81 that rotates with the inclined main board 41, and a connecting ball head bracket 82 is rotated with the side of the triangular auxiliary inclined plate 81 near the warehouse door 3.
[0032] By adopting the above technical solution, when the warehouse door 3 is closed, the triangular auxiliary ramp 81 at one end of the inclined main board 41 will fold through the hinge at the connection point, so that the triangular auxiliary ramp 81 is folded to the bottom of the inclined main board 41. Since the end of the triangular auxiliary ramp 81 is connected to the warehouse door 3 through the double-ended ball joint 83, when the warehouse door 3 is opened, the folding connector 8 will drive the folding ramp 4 to unfold. When the warehouse door 3 is closed, the folding connector 8 and the folding ramp 4 can be folded together, thereby realizing the automatic opening and closing of the ramp and increasing the functionality.
[0033] More specifically, the adjustable slider 7 includes a slider body 71 that slides in cooperation with the inner side of the dovetail groove 6, and the two ends of the slider body 71 are respectively provided with a rotating ball head seat 72 and a locking bolt 73.
[0034] The locking bolt 73 is threadedly connected to the slider body 71, and the end of the locking bolt 73 passes through the slider body 71 and fits against the end of the dovetail groove 6, while the rotating ball head holder 72 is rotated to engage with the other end of the slider body 71.
[0035] Furthermore, a double-ended ball joint rod 83 is provided between the triangular auxiliary inclined plate 81 and the warehouse door 3, and the two ends of the double-ended ball joint rod 83 are respectively engaged with the connecting ball joint seat 82 and the rotating ball joint seat 72.
[0036] By adopting the above technical solution, when the folding ramp 4 and the folding connector 8 are folded or unfolded, the position of the end of the double-ended ball joint 83 on the side of the warehouse door 3 can be adjusted by the cooperation of the slider body 71 and the rotating ball joint seat 72. After tightening the locking bolt 73, the position of the slider body 71 inside the dovetail groove 6 can be fixed. After unfolding, the folding ramp 4 and the folding connector 8 can use the double-ended ball joint 83 to push the warehouse door 3 against the wall, preventing the warehouse door 3 from closing automatically when the goods are being transported.
[0037] Furthermore, the inner side of the cold storage room 1 is also covered with an insulation layer 5, and an evaporator is installed on the inner side of the insulation layer 5. The evaporator is connected to the outdoor refrigeration unit 2 on the outside of the cold storage room 1 through a pipe, and the outdoor refrigeration unit 2 is located at the end of the cold storage room 1 away from the door 3.
[0038] The working principle of this utility model is as follows: When in use, the warehouse door 3 is first opened. When the warehouse door 3 rotates, it will drive the folding connector 8 to move outward through the double-end ball joint connecting rod 83. Since the triangular auxiliary inclined plate 81 and the inclined main plate 41 are connected by a hinge, and the inclined main plate 41 and the cold storage 1 are engaged by a pin, after the warehouse door 3 is opened, it will drive the triangular auxiliary inclined plate 81 to rotate forward and drive the inclined main plate 41 to rotate outward, thereby unfolding the inclined main plate 41 and the triangular auxiliary inclined plate 81. The triangular bracket 42 under the inclined main plate 41 will also flip downward until the inclined main plate 41 and the slider 71 are tilted and set at the end of the cold storage 1. The triangular bracket 42 will provide support at the bottom of the inclined main plate 41, which facilitates the entry and exit of the transfer vehicle during transportation. The structure is simple, the operation is very convenient, and it effectively reduces the intensity of manual labor.
[0039] 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 illustrative 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. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A fresh-keeping cold storage, characterized in that: It includes a cold storage room (1), the side of the cold storage room (1) is rotatably connected to a storage door (3) by a pin, and the end of the cold storage room (1) is provided with an entrance and exit corresponding to the storage door (3), and the bottom of the entrance and exit is provided with a folding ramp (4). The folding ramp (4) includes an inclined main board (41), and a folding connector (8) is inclinedly provided at one corner of the inclined main board (41) near the warehouse door (3). A dovetail-shaped slide groove (6) is provided at the bottom of the warehouse door (3), and an adjustable slider (7) that cooperates with the folding connector (8) is also slidably fitted in the dovetail-shaped slide groove (6).
2. The fresh-keeping cold store according to claim 1, characterized in that: The bottom of the inclined main board (41) is provided with triangular supports (42) in a rectangular array, and the bottom of the triangular supports (42) is flush with the bottom of the cold storage room (1). Moreover, each of the triangular supports (42) is rotatably connected to the inclined main board (41) by a hinge.
3. The fresh-keeping freezer according to claim 2, characterized in that: The folding connector (8) includes a triangular auxiliary ramp (81) that rotates with the inclined main board (41), and the side of the triangular auxiliary ramp (81) near the warehouse door (3) is rotated with a connecting ball head bracket (82).
4. The fresh-keeping freezer according to claim 3, characterized in that: The adjustable slider (7) includes a slider body (71) that slides in cooperation with the inside of the dovetail groove (6). The two ends of the slider body (71) are respectively provided with a rotating ball head seat (72) and a locking bolt (73). Among them, the locking bolt (73) is threadedly connected to the slider body (71), and the end of the locking bolt (73) passes through the slider body (71) and fits against the end of the dovetail groove (6), while the rotating ball head holder (72) is rotated with the other end of the slider body (71).
5. The fresh-keeping freezer according to claim 4, characterized in that: The triangular auxiliary inclined plate (81) and the warehouse door (3) are also provided with a double-ended ball joint (83), and the two ends of the double-ended ball joint (83) are respectively engaged with the connecting ball joint seat (82) and the rotating ball joint seat (72).
6. The fresh-keeping freezer according to claim 1, characterized in that: The inner side of the cold storage room (1) is also covered with an insulation layer (5), and an evaporator is installed on the inner side of the insulation layer (5). The evaporator is connected to the refrigeration outdoor unit (2) on the outside of the cold storage room (1) through a pipe, and the refrigeration outdoor unit (2) is located at the end of the cold storage room (1) away from the door (3).