Apple fresh-keeping equipment
By using a circulating cooling system and plate-type nitrogen molecular sieves to reduce temperature and oxygen concentration, the problem of rotting caused by oxygen and high temperature in apple preservation equipment is solved, thus achieving effective preservation of apples.
Patent Information
- Application Number
- CN202520337955.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In existing apple preservation equipment, oxygen in the air and high temperatures can cause apples to rot, and current technology is unable to effectively solve this problem.
The system employs a circulating cooling system combined with a semiconductor cooler to reduce temperature, and uses a plate-type nitrogen molecular sieve to reduce oxygen concentration. Limiting components facilitate the replacement of filter elements, ensuring the equipment's airtightness.
It effectively reduces the temperature and oxygen concentration inside the equipment, extending the shelf life of apples and preventing them from rotting.
Smart Images

Figure CN223795554U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of apple storage device technology, specifically an apple preservation device. Background Technology
[0002] Apples are plants belonging to the genus *Malus* of the subfamily Maloideae in the family Rosaceae. The tree is a deciduous tree. Apples are highly nutritious, rich in minerals and vitamins, and contain abundant calcium, which helps metabolize excess salt in the body. Malic acid in apples can also help metabolize calories. Apples require preservation and storage equipment during storage.
[0003] In actual use, existing apple preservation and storage equipment can cause apples to rot faster due to the presence of a lot of oxygen in the air and prolonged contact with oxygen. Additionally, high internal temperatures within the equipment can also accelerate the rotting process.
[0004] To address the aforementioned issues, an apple preservation device is proposed. Utility Model Content
[0005] The purpose of this invention is to provide an apple preservation device that solves the problems in the background technology where the presence of a large amount of oxygen in the air leads to prolonged contact between apples and oxygen, causing the apples to rot faster, and where the internal temperature of the device is high, also causing the apples to rot faster.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an apple preservation device, including a preservation box, with two placement plates fixedly connected to the upper part of the preservation box. The top of each placement plate has evenly distributed grooves, and a cooling pipe is installed within each placement plate. Two support plates are fixedly connected to the right side of the preservation box, and a water tank is fixedly connected to the top of each support plate. A water pump is installed in front of the water tank, and water pipes are fixedly connected to both the front and rear ends of the water pump. An installation plate is fixedly connected to the lower part of the preservation box, and a semiconductor cooler is passed through and fixedly connected within the installation plate. An oxygen concentration detection sensor is fixedly connected to the top right side of the preservation box, and a filter box is installed on the left side of the preservation box. The filter box has gas supply pipes that are connected through and fixed to both the top and bottom. The ends of the two gas supply pipes are connected through and fixed to the preservation box. Limiting frames are fixedly connected to both sides of the upper part of the filter box. Plate-type nitrogen molecular sieves are provided on the top of the two limiting frames. A fan is fixedly connected to the lower part of the filter box. An installation groove is provided on the front side of the filter box. A uniformly distributed spring is fixedly connected in the installation groove. A sealing ring is fixedly connected to the outer end of the spring. A sealing cover is provided on the front side of the filter box. A tough elastic sheet is fixedly connected to the top and bottom of the sealing cover. A pressing block is fixedly connected to the outer end of the tough elastic sheet. Limiting components are provided on the top and bottom of the filter box.
[0007] By adopting the above technical solution, the water tank, through the water pump and water pipes, forms a circulating cooling system with the cooling pipes in the placement plate. This system can absorb heat from the placement plate and its surroundings, cooling the apples placed in the grooves of the placement plate. In conjunction with the semiconductor refrigerator, it can further reduce the temperature inside the preservation box.
[0008] As a further description of the above technical solution: the limiting component includes a mounting block, the mounting block is fixedly connected to the outer wall of the filter box, the front end of the mounting block has a slot, the outer side of the mounting block has a groove, the flexible spring is disposed in the slot, and the pressing block is disposed in the groove.
[0009] By adopting the above technical solution, the limiting component can limit the two flexible spring pieces on the sealing cover, thereby facilitating the quick installation and removal of the sealing cover.
[0010] As a further description of the above technical solution: the rear end of the cooling pipe passes through the placement plate and the preservation box and is fixedly connected to the water tank.
[0011] By adopting the above technical solution, it is convenient for the water in the cooling pipe to flow back into the water tank.
[0012] As a further description of the above technical solution: the end of the water pipe at the front end passes through the preservation box and the placement plate and is fixedly connected to the cooling pipe, and the end of the water pipe at the rear end is fixedly connected to the water tank.
[0013] By adopting the above technical solution, the water pipes serve to transport water.
[0014] As a further description of the above technical solution: the sealing ring is disposed in the mounting groove, and the outer side of the sealing ring is slidably connected to the inner wall of the mounting groove.
[0015] By adopting the above technical solution, the sealing ring can easily expand and contract within the mounting groove.
[0016] As a further description of the above technical solution: a temperature sensor is fixedly connected to the top left side of the inside of the food storage box.
[0017] By adopting the above technical solution, the temperature inside the food storage box can be detected in real time using a temperature sensor.
[0018] As a further description of the above technical solution: the slot is connected to the groove.
[0019] By adopting the above technical solution, the pressing block can be inserted into the slot when the flexible spring is inserted into the slot.
[0020] As a further description of the above technical solution: two limiting blocks are fixedly connected inside the slot, and the limiting blocks are arranged on both sides of the slot.
[0021] By adopting the above technical solution, the limiting block plays the role of limiting the outer end of the tough elastic piece.
[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0023] 1. The apple preservation device provided by this utility model firstly uses a temperature sensor, a placement plate, a groove, a cooling pipe, a water tank, a water pump, water pipes, a support plate, a mounting plate, and a semiconductor cooler to work together. The water tank, through the water pump and water pipes, forms a circulating cooling system with the cooling pipes in the placement plate, which can absorb heat from the placement plate and the surrounding area to cool down the apples placed in the groove of the placement plate. In conjunction with the semiconductor cooler, the temperature inside the preservation box can be further reduced to prevent the apples from rotting due to excessively high temperatures.
[0024] 2. This utility model provides an apple preservation device that uses a fan to draw gas from the preservation box into a filter box through a bottom gas inlet pipe. Inside the filter box, the gas passes through a plate-type nitrogen molecular sieve, which separates the gas. Nitrogen from the air is then returned to the preservation box, while oxygen is blocked. This reduces the oxygen concentration inside the preservation box, extending the shelf life. Furthermore, a limiting component restricts the two flexible springs on the sealing cap, facilitating quick installation and removal of the sealing cap and easy replacement of the plate-type nitrogen molecular sieve. The sealing cap, in conjunction with a sealing ring, ensures a tight seal after installation. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the internal structure of the placement plate of this utility model;
[0027] Figure 3 This is a side view of the present invention;
[0028] Figure 4 This is a schematic diagram of the internal structure of the filter box of this utility model;
[0029] Figure 5 This is an exploded view of the filter box of this utility model.
[0030] In the diagram: 1. Fresh-keeping box; 2. Placement plate; 3. Groove; 4. Cooling pipe; 5. Water tank; 6. Water pump; 7. Water pipe; 8. Support plate; 9. Mounting plate; 10. Semiconductor refrigerator; 11. Oxygen concentration sensor; 12. Filter box; 13. Gas supply pipe; 14. Limiting frame; 15. Plate-type nitrogen molecular sieve; 16. Fan; 17. Mounting groove; 18. Spring; 19. Sealing ring; 20. Sealing cover; 21. Tough spring; 22. Pressing block; 23. Mounting block; 24. Slot; 25. Groove; 26. Limiting block; 27. Temperature sensor. Detailed Implementation
[0031] 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.
[0032] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.
[0033] Reference Figure 1-5This utility model discloses an apple preservation device, comprising a preservation box 1, a door on the front side of the preservation box 1, ventilation holes on both sides of the lower part of the preservation box 1, two placement plates 2 fixedly connected to the upper part of the preservation box 1, the top of the placement plates 2 having evenly distributed grooves 3 for limiting the apples, and cooling pipes 4 installed inside the placement plates 2, two support plates 8 fixedly connected to the right side of the preservation box 1 to support a water tank 5 and a water pump 6, the top of the support plates 8 fixedly connected to the water tank 5, and the water pump 6 installed in front of the water tank 5 to pump water out of the water tank 5, with water pipes 7 fixedly connected to both the front and rear ends of the water pump 6, an mounting plate 9 fixedly connected to the lower part of the preservation box 1, a semiconductor cooler 10 passing through and fixedly connected to the mounting plate 9 to cool the inside of the preservation box 1, and an oxygen concentration detection sensor fixedly connected to the top right side of the preservation box 1. 11. A filter box 12 is provided on the left side of the preservation box 1 for filtering oxygen. Gas supply pipes 13 are connected through and fixedly to the top and bottom of the filter box 12. Solenoid valves are provided on the outside of the gas supply pipes 13. The ends of the two gas supply pipes 13 are connected through and fixedly to the preservation box 1. Limiting frames 14 are fixedly connected to the upper two sides inside the filter box 12. The limiting frames 14 can limit the plate nitrogen molecular sieve 15. The plate nitrogen molecular sieve 15 is provided on the top of the two limiting frames 14, which can sieve the air. A fan 16 is fixedly connected to the lower part of the filter box 12, which can extract the air inside the preservation box 1. An installation groove 17 is opened on the front side of the filter box 12. Evenly distributed springs 18 are fixedly connected in the installation groove 17. A sealing ring 19 is fixedly connected to the outward end of the spring 18. The sealing ring 19 can be contracted by the compression of the spring 18. A sealing cover 20 is provided on the front side of the filter box 12. A sealing ring is provided on the inner side of the sealing cover 20, which can be inserted into the mounting groove 17. A flexible spring sheet 21 is fixedly connected to the top and bottom of the sealing cover 20. The flexible spring sheet 21 is U-shaped. A pressing block 22 is fixedly connected to the outer end of the flexible spring sheet 21. Limiting components are provided on the top and bottom of the filter box 12.
[0034] Reference Figure 5 The limiting component includes a mounting block 23, which is fixedly connected to the outer wall of the filter box 12. The mounting block 23 has a slot 24 at its front end and a groove 25 on its outer side. A flexible spring piece 21 is disposed in the slot 24, and a pressing block 22 is disposed in the groove 25. The groove 25 communicates with the slot 24. Two limiting blocks 26 are fixedly connected in the slot 24 and are disposed on both sides of the groove 25. The limiting component can limit the two flexible spring pieces 21 on the sealing cover 20, thereby facilitating the quick installation and removal of the sealing cover 20.
[0035] Reference Figure 2 , Figure 3 and Figure 4The rear end of the cooling pipe 4 passes through the placement plate 2 and the preservation box 1 and is fixedly connected to the water tank 5, so that the water in the cooling pipe 4 can flow back into the water tank 5. The end of the front water pipe 7 passes through the preservation box 1 and the placement plate 2 and is fixedly connected to the cooling pipe 4. The end of the rear water pipe 7 is fixedly connected to the water tank 5. The sealing ring 19 is set in the mounting groove 17, and the outside of the sealing ring 19 is slidably connected to the inner wall of the mounting groove 17, so that the sealing ring 19 can expand and contract within the mounting groove 17. A temperature sensor 27 is fixedly connected to the top left side of the preservation box 1, and the temperature inside the preservation box 1 can be detected in real time through the temperature sensor 27.
[0036] Working principle: In use, apples are placed sequentially into the groove 3 at the top of the placement plate 2. The water tank 5, through the water pump 6 and water pipe 7, forms a circulating cooling system with the cooling pipe 4 inside the placement plate 2. The water pump 6 is activated, pumping water from the water tank 5 into the cooling pipe 4 through the front water pipe 7. The rear end of the cooling pipe 4 passes through the placement plate 2 and the preservation box 1 and is fixedly connected to the water tank 5. The water circulates in the cooling pipe 4, absorbing heat from the placement plate 2 and the area around the groove 3, thus cooling the apples placed in the groove 3 of the placement plate 2. The semiconductor cooler 10 inside the mounting plate 9 at the bottom of the preservation box 1 also participates in the cooling process. After the semiconductor cooler 10 is powered on, its cold side absorbs heat from the bottom of the preservation box 1, while its hot side dissipates the heat to the outside of the preservation box 1 through the vent (not shown in the figure), further reducing the temperature inside the preservation box 1. Temperature sensor 27 on the top left side of the inside of the preservation box 1 monitors the temperature inside the preservation box 1 in real time and feeds the data back to the controller (not shown in the figure) at the bottom of the preservation box 1 so as to adjust the working status of water pump 6 and semiconductor refrigerator 10 in time to maintain a suitable low temperature environment inside the preservation box 1. Oxygen concentration sensor 11 inside the preservation box 1 monitors the oxygen concentration inside the preservation box 1 in real time. When the oxygen concentration is too high, the controller at the bottom of the mounting plate 9 controls the solenoid valve (not shown in the figure) outside the gas supply pipe 13 to open and start the fan 16. The fan 16 draws air from inside the preservation box 1 into the filter box 12, where the plate nitrogen molecular sieve 15 filters the air. Nitrogen in the air is then transported back into the preservation box 1, while oxygen in the air is blocked, thereby effectively reducing the oxygen concentration inside the preservation box 1 and extending the preservation period. When it is necessary to replace or maintain the plate nitrogen molecular sieve 15 inside the filter box 12, press the pressing block 22 on the front sealing cover 20 of the filter box 12. The pressing block 22 is connected to the flexible spring sheet 21. The flexible spring sheet 21 is located in the slot 24 of the mounting block 23, and the pressing block 22 is located in the slot 25, and the slot 25 communicates with the slot 24. When the pressing block 22 is pressed, the flexible spring 21 undergoes elastic deformation, causing the outer end of the flexible spring 21 to disengage from the limiting block 26 and detach from the slot 24, allowing for quick disassembly of the sealing cover 20 and replacement of the plate-type nitrogen molecular sieve 15 in the filter box 12. When installing the sealing cover 20, place the sealing cover 20 on the outside of the filter box 12, insert the sealing ring (not shown in the figure) on the inner side of the sealing cover 20 into the mounting groove 17, and compress the sealing ring 19. The elastic force of the spring 18 enhances the sealing effect of the sealing cover 20. Align the flexible spring 21 with the slot 24 of the limiting component and insert it. During the insertion process, the flexible spring 21 undergoes elastic deformation due to the compression of the limiting block 26. When the flexible spring 21 is fully inserted into the slot 24, the outer end of the flexible spring 21 returns to its original position, completing the installation.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An apple preservation device, comprising a preservation box (1), characterized in that: Two placement plates (2) are fixedly connected to the upper part of the food preservation box (1). The top of the placement plate (2) is provided with evenly distributed grooves (3). Cooling pipes (4) are provided inside the placement plate (2). Two support plates (8) are fixedly connected to the right side of the food preservation box (1). A water tank (5) is fixedly connected to the top of the support plate (8). A water pump (6) is provided in front of the water tank (5). Water pipes (7) are fixedly connected to the front and rear ends of the water pump (6). An installation plate (9) is fixedly connected to the lower part of the food preservation box (1). A semiconductor cooler (10) is fixedly connected through the installation plate (9). An oxygen concentration detection sensor (11) is fixedly connected to the top right side of the food preservation box (1). A filter box (12) is provided on the left side of the food preservation box (1). Gas supply pipes (13) are fixedly connected through the top and bottom of the filter box (12). The two gas pipes (13) are connected to the preservation box (1) through and fixedly connected at their ends. Limiting frames (14) are fixedly connected to the upper sides of the filter box (12). Plate-type nitrogen molecular sieves (15) are provided on the top of the two limiting frames (14). A fan (16) is fixedly connected to the lower part of the filter box (12). An installation groove (17) is opened on the front side of the filter box (12). A uniformly distributed spring (18) is fixedly connected in the installation groove (17). A sealing ring (19) is fixedly connected to the outer end of the spring (18). A sealing cover (20) is provided on the front side of the filter box (12). A tough elastic piece (21) is fixedly connected to the top and bottom of the sealing cover (20). A pressing block (22) is fixedly connected to the outer end of the tough elastic piece (21). Limiting components are provided on the top and bottom of the filter box (12).
2. The apple preservation device according to claim 1, characterized in that: The limiting component includes a mounting block (23), which is fixedly connected to the outer wall of the filter box (12). The mounting block (23) has a slot (24) at its front end and a groove (25) on its outer side. The flexible spring sheet (21) is disposed in the slot (24) and the pressing block (22) is disposed in the groove (25).
3. The apple preservation device according to claim 1, characterized in that: The rear end of the cooling pipe (4) passes through the placement plate (2) and the fresh food box (1) and is fixedly connected to the water tank (5).
4. The apple preservation device according to claim 1, characterized in that: The end of the water pipe (7) at the front end passes through the preservation box (1) and the placement plate (2) and is fixedly connected to the cooling pipe (4), and the end of the water pipe (7) at the rear end is fixedly connected to the water tank (5).
5. The apple preservation device according to claim 1, characterized in that: The sealing ring (19) is disposed in the mounting groove (17), and the outside of the sealing ring (19) is slidably connected to the inner wall of the mounting groove (17).
6. The apple preservation device according to claim 1, characterized in that: A temperature sensor (27) is fixedly connected to the top left side of the inside of the food storage box (1).
7. An apple preservation device according to claim 2, characterized in that: The slot (25) is connected to the slot (24).
8. An apple preservation device according to claim 2, characterized in that: Two limiting blocks (26) are fixedly connected inside the slot (24), and the limiting blocks (26) are located on both sides of the slot (25).