Energy-storage modified atmosphere fresh-keeping box

Abstract

The invention relates to the technical field of fresh-keeping equipment, and discloses an energy storage modified atmosphere fresh-keeping box which comprises a fresh-keeping box body, an air cooling assembly, an air inlet channel and a baffling assembly, the air cooling assembly is arranged on the outer side of a box body on the side, away from a box door, of the fresh-keeping box body, and the air inlet channel and the baffling assembly are arranged at the corresponding positions of the box body on the side. The baffling assembly is arranged on the inner side of a box body on one side, far away from the box door, of the fresh-keeping box main body and comprises a plurality of first baffling plates rotationally arranged on the fresh-keeping box main body, and the plurality of first baffling plates are horizontally arranged in an initial state. The technical means that the moving assembly is matched with the first baffle plate and the photovoltaic panel is adopted, in the morning or afternoon, the moving assembly is used for driving the supporting frame to be close to the corresponding roller, so that the inclination angle of the photovoltaic panel is increased and matched with the angle of solar rays in the time period, the photoelectric conversion efficiency is improved, and the energy consumption is reduced. And meanwhile, the further inclined photovoltaic panel shields the part, exposed to the sun, of the fresh-keeping box body, so that the box body is prevented from being directly irradiated by sunlight.

Description

Technical Field

[0001] This invention relates to the field of food preservation equipment technology, and more specifically, to an energy storage controlled atmosphere preservation box. Background Technology

[0002] With the rapid development of greenhouse cultivation technology, more and more people are choosing to grow vegetables or fruits in large quantities in greenhouses. Since vegetables and fruits are extremely easy to spoil at room temperature, researchers have specially designed a modified atmosphere preservation box suitable for growers to place near greenhouses for the preservation of vegetables and fruits. This device regulates the temperature inside the box by introducing cold air and various inert gases, so that the vegetables enter a dormant state and reduce their spoilage rate.

[0003] While existing modified atmosphere storage boxes can effectively preserve fruits and vegetables, in actual use, the air vents are often located on the upper or lower sides of the box, and farmers typically place these boxes outdoors. This results in the sunlit side of the box often being hotter in the morning or afternoon due to direct sunlight. Furthermore, because cold air sinks and hot air rises, the top of the box is often hotter than the bottom. At midday, the top of the box is also very hot due to direct sunlight. Since many fruits and vegetables are sensitive to temperature fluctuations and the temperature difference within the box should not be too large, existing cooling systems, with their fixed airflow paths, cannot adjust the temperature according to changes in sunlight angle, leading to less than ideal preservation results for vegetables. Summary of the Invention

[0004] This invention discloses an energy storage modified atmosphere preservation box, which solves the technical problem in the existing preservation boxes where the cooling device has a fixed air outlet trajectory and cannot adjust the temperature inside the box according to changes in the angle of light, resulting in less than ideal preservation effect for vegetables.

[0005] This invention discloses an energy storage modified atmosphere preservation box, comprising: a preservation box body; The air-cooling component is located on the outer side of the refrigerator body away from the door, and an air inlet channel is provided at the corresponding position on this side of the refrigerator body. A baffle assembly is disposed inside the body of the fresh food container on the side away from the door. The baffle assembly includes a plurality of first baffle plates rotatably disposed on the body of the fresh food container, and in the initial state, the plurality of first baffle plates are all horizontally disposed. An energy storage unit is installed on the main body of the refrigerator and is used to provide part of the power required for the operation of the air-cooling component. The energy storage unit includes a photovoltaic panel installed on the top of the main body of the refrigerator. A pair of parallel sliding strips are fixedly connected to the bottom of the photovoltaic panel. A pair of rollers are rotatably installed on the main body of the refrigerator. Each roller is in rolling cooperation with the corresponding sliding strip. A support frame is rotatably connected to the end of the sliding strip away from the corresponding roller. A movable component is disposed on the main body of the preservation box. The first baffle plate and the support frame are both driven to cooperate with the movable component. When the movable component drives the multiple first baffle plates to flip towards the top of the preservation box, the movable component simultaneously drives the support frame to move horizontally away from the roller.

[0006] Preferably, the moving component includes a first threaded rod rotatably disposed on the body of the preservation box, the first threaded rod being threadedly connected to a number of first sleeves corresponding to the first baffle plate, a first vertical rod fixedly connected to the body of the preservation box and arranged parallel to the first threaded rod, a number of second sleeves corresponding to the first sleeves being sleeved on the first vertical rod, a first horizontal rod fixedly connected to each first sleeve, the first horizontal rod being fixedly connected to the corresponding second sleeve, a second horizontal rod fixedly connected to each second sleeve and arranged coaxially with the first horizontal rod, a first sliding groove being formed through the first baffle plate for the corresponding second horizontal rod to pass through, and a driving device for driving the first threaded rod to rotate being disposed on the body of the preservation box.

[0007] Preferably, an auxiliary rod is provided on the side of the first baffle away from the second sleeve, and one end of each second crossbar passing through the corresponding first slide groove is rotatably connected to the auxiliary rod.

[0008] Preferably, a pair of parallel second baffles are rotatably connected inside the main body of the preservation box, and a pair of parallel guide rods are fixedly connected to the bottom of the support frame near the second baffles. Each second baffle is provided with a second groove through which the corresponding guide rod passes. The main body of the preservation box is provided with a groove for the guide rod to move.

[0009] Preferably, the driving device includes a mounting bracket fixedly installed at the bottom of the body of the food storage box, a servo motor is fixedly installed on the mounting bracket, and the output shaft of the servo motor is fixedly connected to the first threaded rod.

[0010] Preferably, a first rotating rod is rotatably connected to the top of the main body of the food preservation box. A first bevel gear is fixedly connected to the near end of the first rotating rod and the first threaded rod. The two first bevel gears are meshed with each other. A pair of parallel second threaded rods are rotatably connected to the top of the main body of the food preservation box. A second bevel gear is fixedly installed at the end of the second threaded rod near the first rotating rod and at the corresponding position on the first rotating rod. Multiple second bevel gears are grouped in pairs, and the two second bevel gears in each group are meshed with each other. Each second threaded rod is threadedly connected to the corresponding support frame.

[0011] Preferably, a pair of dustproof strips are fixedly connected to the support frame near the second baffle plate.

[0012] Preferably, the air-cooling assembly includes a plurality of air coolers fixedly installed on the main body of the preservation box, and a pair of dustproof shells are fixedly installed on the main body of the preservation box, with each air cooler located inside the corresponding dustproof shell.

[0013] Preferably, an energy storage power box is installed on the main body of the food storage box, the photovoltaic panel is electrically connected to the energy storage power box, and the energy storage power box is electrically connected to multiple air coolers.

[0014] Preferably, an electrical control box is fixedly installed on the main body of the food preservation box, the energy storage power box is electrically connected to the electrical control box, and the electrical control box is electrically connected to the servo motor.

[0015] The beneficial effects of this invention are as follows: 1. This invention employs a combination of a movable component, a first deflector plate, and a photovoltaic panel. In the morning or afternoon, the movable component moves the support frame closer to the corresponding rollers, increasing the tilt angle of the photovoltaic panel to match the angle of sunlight during that time, thus improving photoelectric conversion efficiency. Simultaneously, the further tilted photovoltaic panel blocks the sun-facing portion of the food storage container, preventing direct sunlight from hitting the container. Conversely, at midday, when the sunlight is directly hitting the top of the food storage container, the movable component moves the support frame away from the rollers, decreasing the tilt angle of the photovoltaic panel and blocking direct sunlight from hitting the top of the container. The movable component also causes the first deflector plate to flip upwards, concentrating the cool air towards the top of the container, thereby further equalizing the temperature inside the container and improving the practicality of the device.

[0016] 2. This invention employs a combination of a moving component and a second deflector plate. In the morning or afternoon, the moving component moves the support frame closer to the corresponding roller, while one of the support frames moves the guide rod on it synchronously. This causes the two second deflectors plate to deflect towards the sunlit side of the housing, changing the direction of the cold air flow and preferentially blowing the cold air towards the sunlit side of the housing. This balances the temperature inside the housing and further improves the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention used to demonstrate the air cooler; Figure 3 This is a three-dimensional structural diagram of the gas pump and the gas nozzle used in this invention; Figure 4 This is a three-dimensional structural schematic diagram of the baffle assembly used in this invention; Figure 5 This is a three-dimensional structural diagram of the energy storage unit used in this invention; Figure 6 This is a three-dimensional structural diagram of the dustproof shell and energy storage power box used by the present invention; Figure 7 This is a three-dimensional structural diagram of the mobile component used in this invention.

[0018] In the diagram: 100, main body of the food storage container; 200, air-cooling component; 300, baffle assembly; 400, energy storage unit; 500, moving component; 201. Air cooler; 202. Dustproof casing; 301. First baffle plate; 302. Second baffle plate; 303. Guide rod; 401. Photovoltaic panel; 402. Sliding bar; 403. Roller; 404. Support frame; 405. Dustproof strip; 406. Energy storage power box; 407. Electrical control box; 501, First threaded rod; 502, First sleeve; 503, First vertical rod; 504, Second sleeve; 505, First horizontal rod; 506, Second horizontal rod; 507, Auxiliary rod; 508, Mounting bracket; 509, Servo motor; 5010, First rotating rod; 5011, First bevel gear; 5012, Second threaded rod; 5013, Second bevel gear. Detailed Implementation

[0019] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, some features described in the examples may be combined in other examples.

[0020] like Figure 1 , Figure 3 , Figure 4 As shown, this embodiment discloses an energy storage modified atmosphere preservation box, including: a preservation box body 100; The air-cooled component 200 is located on the outer side of the main body 100 of the refrigerator, away from the door, and an air inlet channel is provided at the corresponding position on this side of the refrigerator. The baffle assembly 300 is disposed inside the body of the refrigerator body 100 on the side away from the door. The baffle assembly 300 includes a plurality of first baffle plates 301 rotatably disposed on the refrigerator body 100, and in the initial state, the plurality of first baffle plates 301 are all horizontally disposed. An energy storage unit 400 is installed on the main body 100 of the refrigerator and is used to provide part of the power required for the operation of the air-cooled component 200. The energy storage unit 400 includes a photovoltaic panel 401 installed on the top of the main body 100 of the refrigerator. A pair of parallel sliding strips 402 are fixedly connected to the bottom of the photovoltaic panel 401. A pair of rollers 403 are rotatably installed on the main body 100 of the refrigerator. Each roller 403 is in rolling cooperation with the corresponding sliding strip 402. A support frame 404 is rotatably connected to the end of the sliding strip 402 away from the corresponding roller 403. The moving component 500 is installed on the main body 100 of the preservation box. The first baffle plate 301 and the support frame 404 are both driven by the moving component 500. When the moving component 500 drives the multiple first baffle plates 301 to flip towards the top of the preservation box 100, the moving component 500 simultaneously drives the support frame 404 to move horizontally away from the roller 403.

[0021] The working principle and beneficial effects of the above technical solution are as follows: First, when installing this device, the position of the device is adjusted so that the side of the main body 100 of the preservation box with the energy storage unit 400 is located on the back side of the sun-facing side. At this time, the photovoltaic panel 401 on the top of the main body 100 of the preservation box is on the sun-facing side, and can efficiently convert light energy into electrical energy throughout the day to provide power for the operation of the air-cooling component 200. When it is necessary to preserve the vegetables or fruits in the main body 100 of the preservation box, the air-cooling component 200 is activated, and cold air is sent in through the air inlet channel to create a low-temperature environment suitable for the long-term storage of vegetables or fruits in the main body 100 of the preservation box.

[0022] In the morning or afternoon, the moving component 500 drives the support frame 404 to move horizontally closer to the corresponding roller 403, increasing the tilt angle of the photovoltaic panel 401. This matches the angle of the sunlight during that time, improving the photoelectric conversion efficiency. Simultaneously, the further tilted photovoltaic panel 401 blocks part of the sun-facing side of the refrigerator body 100, preventing direct sunlight from hitting the body. Conversely, at noon, when the sunlight is at an angle directly hitting the top of the refrigerator body 100, the moving component 500 drives the support frame 404 to move away from the roller 403, decreasing the tilt angle of the photovoltaic panel 401. This blocks the top of the refrigerator body 100, preventing direct sunlight from hitting the top. The moving component 500 also causes the first deflector 301 to flip upwards, changing the direction of the cold air flow and concentrating the cold air towards the top of the refrigerator body 100, thereby further equalizing the temperature inside the box and improving the practicality of the device.

[0023] It should be noted that the main body 100 of the refrigerator is equipped with multiple gas pumps containing inert gases. The inert gases can be introduced into the gas nozzles and sprayed out through corresponding pipes to further reduce the spoilage rate of vegetables or fruits. Since the gas pump is a common existing technology in refrigerators, it will not be described in detail here.

[0024] It should be noted that the outward-extending photovoltaic panels 401 can also provide shading in the morning or afternoon, and their large tilt angle makes it easy to clean stains or dust from their surface.

[0025] like Figure 7 As shown, in a specific embodiment: the moving component 500 includes a first threaded rod 501 rotatably disposed on the body 100 of the preservation box, the first threaded rod 501 being threadedly connected to a number of first sleeves 502 corresponding to the first baffle 301, the body 100 of the preservation box being fixedly connected to a first vertical rod 503 arranged parallel to the first threaded rod 501, the first vertical rod 503 being sleeved with a number of second sleeves 504 corresponding to the first sleeves 502, each first sleeve 502 being fixedly connected to a first horizontal rod 505, the first horizontal rod 505 being fixedly connected to the corresponding second sleeve 504, each second sleeve 504 being fixedly connected to a second horizontal rod 506 arranged coaxially with the first horizontal rod 505, the first baffle 301 being provided with a first sliding groove through which the corresponding second horizontal rod 506 passes, and the body 100 of the preservation box being provided with a driving device for driving the first threaded rod 501 to rotate.

[0026] The working principle and beneficial effects of the above technical solution are as follows: At noon, the first threaded rod 501 is driven to rotate forward using a driving device. The first threaded rod 501 drives multiple first sleeves 502 to move. The first sleeves 502 drive the second sleeves 504 to move synchronously through the corresponding first vertical rods 503. At the same time, the second sleeves 504 restrict the movement trajectory of the first sleeves 502, so that the first sleeves 502 can only make stable vertical movements. This drives multiple first horizontal rods 505 to move upward synchronously. The first horizontal rods 505 slide in the corresponding first grooves, thereby pushing the corresponding first baffles 301 to flip upward, changing the direction of cold air flow, so that the cold air is concentrated and blown towards the top of the refrigerator body 100. Conversely, in the morning or afternoon, the first threaded rod 501 is driven to rotate in the opposite direction using a driving device. Similarly, multiple first baffles 301 are flipped in the opposite direction to the horizontal position.

[0027] like Figure 7 As shown, in a specific embodiment: an auxiliary rod 507 is provided on the side of the first baffle plate 301 away from the second sleeve 504, and one end of each second crossbar 506 passing through the corresponding first slide groove is rotatably connected to the auxiliary rod 507.

[0028] The working principle and beneficial effects of the above technical solution are as follows: the setting of the auxiliary rod 507 can prevent the second crossbar 507 from shaking during movement, thereby further improving the stability of the device.

[0029] like Figure 4 As shown, in a specific embodiment: a pair of parallel second baffles 302 are rotatably connected inside the main body 100 of the food storage box. A pair of parallel guide rods 303 are fixedly connected to the bottom of the support frame 404 near the second baffles 302. Each second baffle 302 has a second groove through which the corresponding guide rod 303 passes. The main body 100 of the food storage box has a groove for the guide rod 303 to move.

[0030] The working principle and beneficial effects of the above technical solution are as follows: In the morning or afternoon, the support frame 404 moves towards the corresponding roller 403, thereby driving the two guide rods 303 to move synchronously. The guide rods 303 push the corresponding second baffles 302, causing the two second baffles 302 to flip synchronously towards the sun-facing side of the refrigerator body 100, blowing more cold air towards the sun-facing side of the refrigerator body 100, and further balancing the temperature inside the refrigerator body 100.

[0031] like Figure 7 As shown, in a specific embodiment: the driving device includes a mounting bracket 508 fixedly installed at the bottom of the body 100 of the food storage box, a servo motor 509 fixedly installed on the mounting bracket 508, and the output shaft of the servo motor 509 is fixedly connected to the first threaded rod 501.

[0032] The working principle and beneficial effects of the above technical solution are as follows: when the servo motor 509 is started, the output shaft of the servo motor 509 rotates, driving the first threaded rod 501 to rotate synchronously.

[0033] like Figure 7 As shown, in a specific embodiment: a first rotating rod 5010 is rotatably connected to the top of the food storage box body 100. A first bevel gear 5011 is fixedly connected to the near ends of the first rotating rod 5010 and the first threaded rod 501. The two first bevel gears 5011 are meshed together. A pair of parallel second threaded rods 5012 are rotatably connected to the top of the food storage box body 100. A second bevel gear 5013 is fixedly installed at the end of the second threaded rod 5012 near the first rotating rod 5010 and at the corresponding position on the first rotating rod 5010. Multiple second bevel gears 5013 are grouped in pairs, and the two second bevel gears 5013 in each group are meshed together. Each second threaded rod 5012 is threadedly connected to the corresponding support frame 404.

[0034] like Figure 6 As shown, the working principle and beneficial effects of the above technical solution are as follows: When the first threaded rod 501 rotates in the forward direction, the first bevel gear 5011 at its top drives the first bevel gear 5011 meshing with it to rotate, which in turn drives the first rotating rod 5010 to rotate. The two second bevel gears 5013 on the first rotating rod 5010 rotate, which in turn drives the two second threaded rods 5012 to rotate synchronously. The second threaded rods 5012 drive the corresponding support frame 404 to move. The movement trajectory of the support frame 404 is restricted by the upper surface of the main body 100 of the preservation box, causing it to move horizontally away from the corresponding roller 403. Conversely, when the first threaded rod 501 rotates in the reverse direction, it similarly drives the support frame 404 to move closer to the corresponding roller 403, thereby adjusting the position and tilt angle of the photovoltaic panel 401 to achieve the corresponding purpose.

[0035] like Figure 6 As shown, in a specific embodiment, a pair of dustproof strips 405 are fixedly connected to the support frame 404 near the second baffle 302.

[0036] The working principle and beneficial effects of the above technical solution are as follows: the dustproof strip 405 can improve the sealing performance of the device, prevent dust from entering the interior of the refrigerator body 100 through the moving groove, and also prevent cold air leakage inside the refrigerator body 100, thereby further improving the practicality of the device.

[0037] like Figure 2As shown, in a specific embodiment: the air-cooled assembly 200 includes a plurality of air coolers 201 fixedly installed on the body 100 of the food storage box, and a pair of dustproof shells 202 are fixedly installed on the body 100 of the food storage box, with each air cooler 201 located inside the corresponding dustproof shell 202.

[0038] The working principle and beneficial effects of the above technical solution are as follows: multiple air coolers 201 are activated to blow cold air into the interior of the refrigerator body 100 from the air inlet channel, thereby reducing the temperature inside the refrigerator body 100. The dust cover 202 can prevent most impurities from being sucked into the refrigerator body 100 by the air coolers 201, thereby improving the stability of the device.

[0039] like Figure 5 , Figure 6 As shown, in a specific embodiment: an energy storage power box 406 is installed on the main body 100 of the food storage box, the photovoltaic panel 401 is electrically connected to the energy storage power box 406, and the energy storage power box 406 is electrically connected to multiple air coolers 201.

[0040] The working principle and beneficial effects of the above technical solution are as follows: Since greenhouses are mostly built in remote fields with complex terrain, there are often difficulties or insecurity in using electricity. At this time, the energy storage power box 406 can store the electrical energy converted by the photovoltaic panel 401. When needed, it can be used to provide power to the air cooler 201, thereby improving the practicality of the device.

[0041] like Figure 6 As shown, in a specific embodiment: an electrical control box 407 is fixedly installed on the main body 100 of the food storage box, an energy storage power box 406 is electrically connected to the electrical control box 407, and the electrical control box 407 is electrically connected to the servo motor 509.

[0042] The working principle and beneficial effects of the above technical solution are as follows: pressing the corresponding control button on the electrical control box 407 can control the output shaft of the servo motor 509 to rotate forward or backward, providing power for the operation of the entire moving component 500.

[0043] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A modified atmosphere storage box, characterized in that, include: Main body of the food storage box (100); The air-cooled component (200) is located on the outer side of the body of the food storage box (100) away from the door, and an air inlet channel is provided at the corresponding position on this side of the body. A baffle assembly (300) is disposed inside the body of the refrigerator body (100) on the side away from the door. The baffle assembly (300) includes a plurality of first baffle plates (301) rotatably disposed on the refrigerator body (100), and in the initial state, the plurality of first baffle plates (301) are all horizontally disposed. An energy storage unit (400) is disposed on the main body (100) of the food storage box and is used to provide part of the power required for the operation of the air-cooled component (200). The energy storage unit (400) includes a photovoltaic panel (401) disposed on the top of the main body (100) of the food storage box. A pair of parallel sliding strips (402) are fixedly connected to the bottom of the photovoltaic panel (401). A pair of rollers (403) are rotatably mounted on the main body (100) of the food storage box. Each roller (403) is in rolling cooperation with the corresponding sliding strip (402). A support frame (404) is rotatably connected to the end of the sliding strip (402) away from the corresponding roller (403). A moving component (500) is disposed on the main body (100) of the preservation box. The first baffle (301) and the support frame (404) are both driven to cooperate with the moving component (500). When the moving component (500) drives the multiple first baffles (301) to flip towards the top of the preservation box (100), the moving component (500) simultaneously drives the support frame (404) to move horizontally away from the roller (403).

2. The energy storage controlled atmosphere preservation box according to claim 1, characterized in that, The moving component (500) includes a first threaded rod (501) rotatably mounted on the body of the preservation box (100). The first threaded rod (501) is threaded with a number of first sleeves (502) corresponding to the first baffle plate (301). The body of the preservation box (100) is fixedly connected with a first vertical rod (503) parallel to the first threaded rod (501). The first vertical rod (503) is fitted with a number of second sleeves (504) corresponding to the first sleeves (502). Each of the first... Each sleeve (502) is fixedly connected with a first crossbar (505), and the first crossbar (505) is fixedly connected to the corresponding second sleeve (504). Each second sleeve (504) is fixedly connected with a second crossbar (506) coaxially arranged with the first crossbar (505). The first baffle (301) is provided with a first sliding groove through which the corresponding second crossbar (506) passes. The main body (100) of the preservation box is provided with a driving device for driving the first threaded rod (501) to rotate.

3. The energy storage controlled atmosphere preservation box according to claim 2, characterized in that, An auxiliary rod (507) is provided on the side of the first baffle (301) away from the second sleeve (504), and one end of each second crossbar (506) passing through the corresponding first slide groove is rotatably connected to the auxiliary rod (507).

4. The energy storage controlled atmosphere preservation box according to claim 3, characterized in that, The main body (100) of the preservation box is also rotatably connected to a pair of parallel second baffles (302). A pair of parallel guide rods (303) are fixedly connected to the bottom of the support frame (404) near the second baffles (302). Each second baffle (302) has a second groove through which the corresponding guide rod (303) passes. The main body (100) of the preservation box has a groove for the guide rod (303) to move.

5. A modified atmosphere storage food preservation box according to claim 4, characterized in that, The drive device includes a mounting bracket (508) fixedly installed at the bottom of the body (100) of the food storage box. A servo motor (509) is fixedly installed on the mounting bracket (508), and the output shaft of the servo motor (509) is fixedly connected to the first threaded rod (501).

6. A modified atmosphere storage food preservation box according to claim 5, characterized in that, The top of the food preservation box body (100) is rotatably connected to a first rotating rod (5010). The first rotating rod (5010) and the first threaded rod (501) are both fixedly connected to a first bevel gear (5011) at their near ends. The two first bevel gears (5011) are meshed together. The top of the food preservation box body (100) is rotatably connected to a pair of parallel second threaded rods (5012). The end of the second threaded rod (5012) near the first rotating rod (5010) and the corresponding position on the first rotating rod (5010) are both fixedly installed with second bevel gears (5013). Multiple second bevel gears (5013) are grouped in pairs, and the two second bevel gears (5013) in each group are meshed together. Each second threaded rod (5012) is threadedly connected to the corresponding support frame (404).

7. A modified atmosphere storage box according to claim 6, characterized in that, A pair of dustproof strips (405) are fixedly connected to the support frame (404) near the second baffle (302).

8. A modified atmosphere storage food preservation box according to claim 7, characterized in that, The air-cooled assembly (200) includes a plurality of air coolers (201) fixedly installed on the main body (100) of the food preservation box. A pair of dustproof shells (202) are fixedly installed on the main body (100) of the food preservation box, and each air cooler (201) is located inside the corresponding dustproof shell (202).

9. A modified atmosphere storage box according to claim 8, characterized in that, An energy storage power box (406) is installed on the main body (100) of the food storage box. The photovoltaic panel (401) is electrically connected to the energy storage power box (406), and the energy storage power box (406) is electrically connected to multiple air coolers (201).

10. A modified atmosphere storage box according to claim 9, characterized in that, An electrical control box (407) is fixedly installed on the main body (100) of the food storage box. The energy storage power box (406) is electrically connected to the electrical control box (407), and the electrical control box (407) is electrically connected to the servo motor (509).

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