A fresh-keeping storage device for lemons

Abstract

The utility model discloses a kind of fresh-keeping storage devices for lemon processing, it is related to lemon processing technical field, including: shell, the inner side of the shell is equipped with heat insulation layer, the inner side of the heat insulation layer is equipped with inner layer, the inner side of the inner layer is equipped with several ultraviolet germicidal plates, the inner side of the inner layer is equipped with several mounting seats, several ultraviolet germicidal plates and several mounting seats are arranged at intervals, and supporting plate is installed between several mounting seats.The utility model is equipped with ultraviolet germicidal plate, ultraviolet germicidal plate emits ultraviolet by electrification, directly irradiates the outer surface of storage box, and kills the bacteria attached on the surface of box;By ultraviolet germicidal lamp being installed on the top and bottom of supporting plate, wavelength 275nm LED ultraviolet lamp (power 10W / candle) is used, and the air in the box and lemon surface are assisted to be sterilized.

Description

Technical Field

[0001] This utility model relates to the field of lemon processing technology, specifically to a preservation and storage device for lemon processing. Background Technology

[0002] Lemons, due to their extremely sour taste, are a favorite among pregnant women, hence the name "beneficial mother fruit" or "beneficial mother seed." Lemons are rich in citric acid, thus earning them the title of "citric acid warehouse." Their fruit is juicy and crisp, with a strong aroma. Because of their intense sourness, they are primarily used as a high-quality seasoning for beverages, dishes, cosmetics, and medicines. Furthermore, lemons are rich in vitamin C, which can relieve phlegm and cough, promote saliva production, and aid digestion. They are used to treat bronchitis, whooping cough, loss of appetite, vitamin deficiency, and heatstroke with thirst; they are also an effective treatment for scurvy. After harvesting, lemons need to be preserved and stored for later large-scale processing.

[0003] Patent document CN219822131U discloses a fresh-keeping and storage device for lemon processing, which discloses "a fresh-keeping and storage device for lemon processing, comprising: a base plate, the middle of the base plate being fixedly connected to a top plate via a column, the edges of the top plate and the base plate being rotatably connected to both ends of a threaded rod, and the surface of the threaded rod being threaded with a plurality of sleeves, a conveying mechanism being provided inside the column, a sliding sleeve being fixedly connected to the middle of the tray, the sliding sleeve and the tray being movably connected to the surface of the column, and a locking mechanism being provided at the bottom of the tray";

[0004] The preservation and storage device in the aforementioned patent document lacks a sterilization and disinfection structure, leading to bacterial growth in lemons and affecting their shelf life. Utility Model Content

[0005] The purpose of this utility model is to provide a fresh-keeping and storage device for lemon processing, so as to solve the technical problem mentioned in the background art that the fresh-keeping and storage device lacks a disinfection and sterilization structure, resulting in the growth of bacteria in lemons and affecting the freshness of lemons.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fresh-keeping and storage device for lemon processing, comprising: a shell, an insulation layer installed on the inner side of the shell, an inner layer installed on the inner side of the insulation layer, a plurality of ultraviolet sterilization plates installed on the inner side of the inner layer, a plurality of mounting seats installed on the inner side of the inner layer, the plurality of ultraviolet sterilization plates and the plurality of mounting seats being arranged at intervals, a support plate installed between the plurality of mounting seats, ultraviolet sterilization lamps installed on the top and bottom of the support plate, a storage assembly installed on the top of the support plate, the storage comprising a storage box placed on the top of the support plate, a locking strip installed on the top of the storage box, and an assembly base installed on the outer side of the storage box;

[0007] The storage box has a top cover that is movably installed on its top. A sealing strip is installed at the bottom of the top cover and abuts against the outside of the retaining strip. A connecting seat is installed on the outside of the top cover. A threaded rod is installed on the inside of the connecting seat via a connecting rod and abuts against the inside of the assembly seat. A fastening cap is installed on the outside of the assembly seat via a thread and abuts against the bottom of the assembly seat. A cooling fan is installed on the rear wall of the housing via a mounting bracket.

[0008] Preferably, a temperature sensor is installed on the inner top wall of the inner layer.

[0009] Preferably, the front of the housing is connected to a sealing door via a hinge, and a retaining plate is installed on one side of the sealing door via a connector.

[0010] Preferably, a card holder is installed on one side of the housing, and the card plate is locked inside the card holder.

[0011] Preferably, a controller is mounted on one side of the housing.

[0012] Preferably, an assembly shell is installed on the rear wall of the housing, and a protective net is installed at the rear end of the assembly shell.

[0013] Preferably, an evaporator is installed on the inner rear wall of the inner layer. The input end of the evaporator is connected to an expansion valve through a pipe. The rear end of the expansion valve is connected to a dryer through a pipe. The rear end of the dryer is connected to a condenser through a pipe. The condenser is installed on the inner bottom wall of the assembly shell. The input end of the condenser is connected to a compressor through a pipe. The input end of the compressor is connected to the evaporator through a pipe. The compressor is installed on the inner bottom wall of the assembly shell.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model is equipped with ultraviolet sterilization plates, with several ultraviolet sterilization plates fixed on the inner side of the inner layer. The ultraviolet sterilization plates operate smoothly and are located on both sides of the storage box. When the ultraviolet sterilization plates are powered on, they emit ultraviolet rays to directly irradiate the outer surface of the storage box and kill bacteria attached to the surface of the box.

[0016] 2. This utility model uses ultraviolet germicidal lamps installed on the top and bottom of the support plate, employing LED ultraviolet lamps with a wavelength of 275nm (power 10W / lamp) to assist in sterilizing the air inside the box and the surface of the lemons;

[0017] 2. This utility model has a temperature sensor installed, with the inner layer fixed to the inner top wall of the temperature sensor to ensure the stability of the temperature sensor. The temperature sensor senses the temperature and transmits the sensed temperature to the controller. The controller controls the operation of the refrigeration equipment and controls the internal temperature change of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell of this utility model;

[0020] Figure 3 This is a schematic diagram of the heat insulation layer structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the storage box structure of this utility model.

[0022] In the diagram: 1. Shell; 2. Insulation layer; 3. Inner layer; 4. Mounting base; 5. Support plate; 6. Ultraviolet germicidal lamp; 7. Ultraviolet germicidal plate; 8. Storage box; 9. Assembly base; 10. Top cover; 11. Sealing strip; 12. Locking strip; 13. Connecting base; 14. Threaded rod; 15. Fastening cap; 16. Assembly shell; 17. Protective net; 18. Evaporator; 19. Expansion valve; 20. Dryer; 21. Condenser; 22. Compressor; 23. Sealing door; 24. Locking seat; 25. Locking plate; 26. Temperature sensor; 27. Controller; 28. Cooling fan. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A preservation and storage device for lemon processing includes: a shell 1, an insulation layer 2 installed on the inner side of the shell 1, and an inner layer 3 installed on the inner side of the insulation layer 2;

[0027] The shell 1 is fixed to the inner insulation layer 2 to ensure the stability of the insulation layer 2. The insulation layer 2 is fixed to the inner layer 3. The shell 1 is made of steel plate to improve the protective performance of the device. The insulation layer 2 is made of insulation material to improve the heat preservation performance of the device. The insulation layer 2 is fixed to the inner layer 3. The inner layer 3 is made of ceramic material to improve the waterproof performance.

[0028] The inner layer 3 has several ultraviolet sterilization plates 7 installed on its inner side, and several mounting seats 4 installed on its inner side. The ultraviolet sterilization plates 7 and the mounting seats 4 are arranged at intervals. A support plate 5 is installed between the mounting seats 4. Ultraviolet sterilization lamps 6 are installed on the top and bottom of the support plate 5. A storage assembly is installed on the top of the support plate 5. The storage assembly includes a storage box 8 placed on the top of the support plate 5. A retaining strip 12 is installed on the top of the storage box 8. An assembly seat 9 is installed on the outside of the storage box 8. A top cover 10 is movably installed on the top of the storage box 8. A sealing strip 11 is installed on the bottom of the top cover 10. The sealing strip 11 abuts against the outside of the retaining strip 12. A connecting seat 13 is installed on the outside of the top cover 10. A threaded rod 14 is installed on the inside of the connecting seat 13 through a connecting rod. The threaded rod 14 abuts against the inside of the assembly seat 9. A fastening cap 15 is installed on the outside of the assembly seat 9 through a thread. The fastening cap 15 abuts against the bottom of the assembly seat 9.

[0029] The ultraviolet sterilization plate 7 is fixed to both sides of the inner layer 3. It uses a UVC lamp tube with a wavelength of 253.7nm (power 15W / piece). When the ultraviolet sterilization plate is powered on, it emits ultraviolet light and works continuously for 2 hours / day, directly irradiating the outer surface of the storage box 8 to kill bacteria attached to the surface of the box.

[0030] The ultraviolet germicidal lamp 6 is installed on the top and bottom of the support plate 5. It uses an LED ultraviolet lamp with a wavelength of 275nm (power 10W / lamp) and works intermittently (turning on for 30 minutes every 4 hours) to assist in sterilizing the air inside the box and the surface of the lemons.

[0031] In addition, the ultraviolet (UV) equipment is set to start at specific times (with the sterilization plate taking priority) via controller 27 to avoid excessive UV radiation in certain areas due to simultaneous irradiation. The storage box 8 is made of food-grade PC material with 60% light transmittance to block some UV radiation and protect the lemon pulp. Experiments (referencing GB / T 18801-2015) show that this configuration can reduce the total bacterial count in the box by 90% (initial colony count ≤1000 CFU / g, ≤100 CFU / g after 48 hours), and the vitamin C loss rate of the lemons is <5%.

[0032] The storage box 8 in the storage assembly is used to store lemons. The storage box 8 is fixed to the two side mounting seats 9 to ensure the stability of the mounting seats 9. The storage box 8 is fixed to the top retaining strip 12. A sealing strip 11 is installed at the bottom of the top cover 10. The sealing strip 11 is clamped to the outside of the retaining strip 12 to ensure the sealing between the storage box 8 and the top cover 10, which facilitates the classified storage of lemon slices produced by the device. The top cover 10 is fixed to the two side connecting seats 13. The connecting seats 13 support the inner threaded rod 14. The threaded rod 14 abuts against the inside of the mounting seat 9. The fastening cap 15 is installed on the outside of the threaded rod 14 by threads. The fastening cap 15 abuts against the bottom of the mounting seat 9. When it is necessary to open the storage box 8 and the top cover 10, the user can remove the fastening cap 15 from the outside of the mounting seat 9 to open the storage box 8 and the top cover 10.

[0033] A temperature sensor 26 is installed on the inner top wall of the inner layer 3, and a controller 27 is installed on one side of the housing 1.

[0034] The inner layer 3 fixes the inner top wall temperature sensor 26 to ensure the stability of the temperature sensor 26. The temperature sensor 26 senses the temperature and transmits the sensed temperature to the controller 27. The controller 27 controls the operation of the refrigeration equipment and controls the internal temperature change of the device.

[0035] Further explanation of the temperature control process: The temperature sensor (26) (model DS18B20, accuracy ±0.5℃) monitors the temperature of the inner layer (3) in real time and transmits the signal to the controller (27) (STM32F103 main controller); when the temperature is >5℃, the controller starts the compressor (22) (cooling capacity 200W) and sets the target temperature to 3±1℃; when the temperature is ≤2℃, the compressor stops and the residual cooling of the evaporator (18) maintains the low temperature; when the temperature is ≥4℃, it restarts.

[0036] Please see Figure 1 , Figure 2 , Figure 3 andFigure 4 The front of the housing 1 is connected to a sealing door 23 via a hinge. A card plate 25 is installed on one side of the sealing door 23 via a connector. A card seat 24 is installed on one side of the housing 1. The card plate 25 is locked inside the card seat 24.

[0037] The front of the housing 1 is connected to the sealing door 23 via a hinge. The sealing door 23 rests against the front of the housing 1. One side of the sealing door 23 is connected to the card plate 25. The card plate 25 is locked above the card seat 24, making it convenient for the user to open the sealing door 23.

[0038] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 An assembly shell 16 is installed on the rear wall of the housing 1, and a protective net 17 is installed at the rear end of the assembly shell 16.

[0039] The housing 1 is fixed to the rear wall assembly housing 16 to ensure the stability of the assembly housing 16. The assembly housing 16 is fixed to the rear wall protective net 17, which is used for protection and to improve safety.

[0040] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A cooling fan 28 is mounted on the rear wall of the housing 1 via a mounting bracket. An evaporator 18 is mounted on the inner rear wall of the inner layer 3. An expansion valve 19 is connected to the input end of the evaporator 18 via a pipe. A dryer 20 is connected to the rear end of the expansion valve 19 via a pipe. A condenser 21 is connected to the rear end of the dryer 20 via a pipe. A compressor 22 is connected to the input end of the condenser 21 via a pipe. The input end of the compressor 22 is connected to the evaporator 18 via a pipe.

[0041] The cooling fan 28 (speed 2000 rpm) is only started when the condenser 21 is working, forcing convection cooling (airflow ≥30 CFM) to ensure condensation temperature ≤45℃.

[0042] The inner layer 3 is fixed to the inner rear wall of the evaporator 18 to ensure stable operation of the evaporator 18. The compressor 22 applies pressure to the internal Freon, causing the Freon to become gaseous. The compressor 22 transfers the Freon to the inside of the condenser 21 through pipes. The condenser 21 dissipates heat from the Freon and transfers the Freon to the inside of the dryer 20 through pipes. The dryer 20 is used to intercept moisture. The dryer 20 transfers the Freon to the inside of the expansion valve 19. The expansion valve 19 throttles the Freon, causing the medium-temperature, high-pressure liquid refrigerant to become low-temperature, low-pressure wet vapor. Then, the refrigerant absorbs heat in the evaporator 18 to achieve a cooling effect. The evaporator 18 transfers the refrigerant to the inside of the compressor 22 to achieve a circulating transfer, which is used to cool the inside of the inner layer 3 and preserve the lemons by keeping them fresh at low temperatures. Preservation performance: At an ambient temperature of 25℃, the device can maintain the lemon storage environment at 3±1℃ and relative humidity of 85%±5%, and the lemon rot rate is <3% after 21 days (compared to 15% rot rate in the control group ordinary refrigerator).

[0043] The refrigerant used is R404A environmentally friendly refrigerant, with a charge of 150g. The dryer 20 is filled with molecular sieves (pore size...). The opening adjustment range of expansion valve 19 is 0.5-2mm.

[0044] Working principle: Compressor 22 applies pressure to the internal Freon, causing it to become gaseous. Compressor 22 then transfers the Freon through pipes to the interior of condenser 21, where it dissipates heat. The Freon is then transferred through pipes to dryer 20, which intercepts moisture. Dryer 20 then transfers the Freon to the inside of expansion valve 19, where it throttles the Freon, turning the medium-temperature, high-pressure liquid refrigerant into low-temperature, low-pressure wet vapor. The refrigerant then absorbs heat in evaporator 18 to achieve a cooling effect. Evaporator 18 transfers the refrigerant back to compressor 22, completing the circulation process for cooling the interior of inner layer 3. For preservation, the storage box 8 in the storage component is used to store lemons. The storage box 8 is fixed to the two side mounting seats 9 to ensure the stability of the mounting seats 9. The storage box 8 is fixed to the top retaining strip 12. A sealing strip 11 is installed at the bottom of the top cover 10. The sealing strip 11 is clipped to the outside of the retaining strip 12 to ensure the sealing between the storage box 8 and the top cover 10. The top cover 10 is fixed to the two side connecting seats 13. The connecting seats 13 support the inner threaded rod 14. The threaded rod 14 abuts against the inside of the mounting seat 9. The fastening cap 15 is installed on the outside of the threaded rod 14 by threads. The fastening cap 15 abuts against the bottom of the mounting seat 9. When it is necessary to open the storage box 8 and the top cover 10, the user can remove the fastening cap 15 from the outside of the mounting seat 9 to open the storage box 8 and the top cover 10.

[0045] 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.

Claims

1. A preservation and storage device for lemon processing, characterized in that, include: A housing (1) is provided with an insulation layer (2) installed on the inner side of the housing (1). An inner layer (3) is installed on the inner side of the insulation layer (2). A plurality of ultraviolet sterilization plates (7) are installed on the inner side of the inner layer (3). A plurality of mounting seats (4) are installed on the inner side of the inner layer (3). The plurality of ultraviolet sterilization plates (7) and the plurality of mounting seats (4) are arranged at intervals. A support plate (5) is installed between the plurality of mounting seats (4). Ultraviolet sterilization lamps (6) are installed on the top and bottom of the support plate (5). A storage component is installed on the top of the support plate (5). The storage component includes a storage box (8) placed on the top of the support plate (5). A locking strip (12) is installed on the top of the storage box (8). An assembly seat (9) is installed on the outside of the storage box (8). The storage box (8) is movably fitted with a top cover (10), and a sealing strip (11) is installed at the bottom of the top cover (10). The sealing strip (11) abuts against the outside of the clip (12). A connecting seat (13) is installed on the outside of the top cover (10). A threaded rod (14) is installed on the inside of the connecting seat (13) through a connecting rod. The threaded rod (14) abuts against the inside of the assembly seat (9). A fastening cap (15) is installed on the outside of the assembly seat (9) through a thread. The fastening cap (15) abuts against the bottom of the assembly seat (9). A cooling fan (28) is installed on the rear wall of the housing (1) through a mounting bracket.

2. The preservation and storage device for lemon processing according to claim 1, characterized in that: A temperature sensor (26) is installed on the inner top wall of the inner layer (3).

3. The preservation and storage device for lemon processing according to claim 2, characterized in that: The front of the housing (1) is connected to a sealing door (23) via a hinge, and a card plate (25) is installed on one side of the sealing door (23) via a connector.

4. The preservation and storage device for lemon processing according to claim 1, characterized in that: A card holder (24) is installed on one side of the housing (1), and a card plate (25) is locked inside the card holder (24).

5. A preservation and storage device for lemon processing according to claim 3, characterized in that: A controller (27) is installed on one side of the housing (1).

6. A preservation and storage device for lemon processing according to claim 1, characterized in that: An assembly shell (16) is installed on the rear wall of the housing (1), and a protective net (17) is installed at the rear end of the assembly shell (16).

7. A preservation and storage device for lemon processing according to claim 1, characterized in that: An evaporator (18) is installed on the inner rear wall of the inner layer (3). An expansion valve (19) is connected to the input end of the evaporator (18) through a pipe. A dryer (20) is connected to the rear end of the expansion valve (19) through a pipe. A condenser (21) is connected to the rear end of the dryer (20) through a pipe. The condenser (21) is installed on the inner bottom wall of the assembly shell (16). A compressor (22) is connected to the input end of the condenser (21) through a pipe. The input end of the compressor (22) is connected to the evaporator (18) through a pipe. The compressor (22) is installed on the inner bottom wall of the assembly shell (16).

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