Environment-adjustable fresh-keeping device

Abstract

The utility model belongs to the technical field of experimental equipment, and provides an environment-adjustable fresh-keeping device, which comprises a control console, a fresh-keeping box, a fresh-keeping box and a fresh-keeping box, the fresh-keeping box is internally provided with at least two layers of storage cavities, the front side of the fresh-keeping box is provided with a transparent window, and the transparent window is provided with a pick-and-place blocking window movably connected with the transparent window; the side box is provided with a refrigerating mechanism and a humidifying mechanism, and the refrigerating mechanism and the humidifying mechanism both communicate with the storage cavity; and an air inlet end is arranged in the storage cavity. The environment-adjustable fresh-keeping device is simple and compact in structure, the fresh-keeping time of fruits and vegetables can be prolonged, the fresh-keeping effect of the fruits and vegetables is improved, meanwhile, the research cost of fresh-keeping experiments of the fruits and vegetables is effectively reduced, experiments of the same experiment environment or different environment conditions can be carried out on different fruits and vegetables, the experiment efficiency is improved, and the experiment cost is reduced. And closed-loop feedback regulation and control is adopted for regulation and control of the fresh-keeping environment, accurate regulation and control of the fresh-keeping environment conditions are guaranteed, and therefore the accuracy and reliability of regulation of the fresh-keeping environment are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fresh-keeping equipment, and particularly relates to an environment-adjustable fresh-keeping device. Background Art

[0002] In recent years, with the higher requirements for the quality of fruits and vegetables, the research on fruit and vegetable preservation technology has also been continuously advancing. The gas-controlled preservation technology of fruits and vegetables is also one of the more advanced preservation methods for transportation and storage in the world today. The principle is that it will adjust and control the changes in some parameters according to the physiological characteristics and quality of different fresh fruits and vegetables, such as the concentration of gases such as oxygen, carbon dioxide, nitrogen, temperature and humidity in the storage environment, so as to reduce the respiration of fruits and vegetables, prolong the metabolism process of fresh fruits and vegetables, and slow down the decomposition rate of nutrients. In this way, the freshness and quality parameters of fruits and vegetables can be better and longer maintained, so that the fruits and vegetables are preserved in the state, luster, taste, flavor and nutrients when they were newly picked, thereby extending the storage life of fruits and vegetables.

[0003] Nowadays, in the food engineering majors of major universities, what is more important is the urgent need for preservation devices for the research of controlled atmosphere preservation technology. However, the current domestic controlled atmosphere storage technology requires the construction of large-scale controlled atmosphere warehouses. Due to its high storage cost and geographical restrictions, it is difficult to popularize and promote large-scale application in production, and it is even less suitable for school scholars to study controlled atmosphere preservation technology.

[0004] Therefore, there is an urgent need to propose an adjustable environment preservation device that can meet the needs of fruit and vegetable preservation, as well as the experimental research of controlled atmosphere preservation technology by enterprises or universities. Summary of the invention

[0005] In order to solve the above technical problems, the utility model proposes an adjustable environment preservation device, which has a simple and compact structure, can prolong the preservation time of fruits and vegetables, improve the preservation effect of fruits and vegetables, and effectively reduce the cost of fruit and vegetable preservation experimental research. Different fruits and vegetables can be experimented with the same experimental environment or different environmental conditions, thereby improving the efficiency of the experiment. The adjustment of the preservation environment adopts closed-loop feedback control to ensure the precise control of the preservation environment conditions, thereby improving the accuracy and reliability of the preservation environment adjustment.

[0006] The technical solution of the utility model is:

[0007] The utility model provides an adjustable environment fresh-keeping device, comprising:

[0008] A control console, wherein a control unit is disposed inside the console, and a plurality of air inlet groups are disposed on a side wall of the console;

[0009] A fresh-keeping box, the fresh-keeping box is fixedly arranged above the console, at least two layers of independent storage cavities are arranged inside the fresh-keeping box, a transparent window is arranged on the front side of the fresh-keeping box, and the transparent window is provided with a take-and-place blocking window movably connected thereto;

[0010] A side box, the side box is fixedly arranged above the console and located on one side of the fresh-keeping box, the side box is provided with a refrigeration mechanism and a humidification mechanism electrically connected to the control unit, and the refrigeration mechanism and the humidification mechanism are both in communication with the storage cavity;

[0011] The storage cavity is provided with a temperature sensing unit, a humidity sensing unit, and a gas concentration sensing unit electrically connected to the control unit, and the storage cavity is also provided with an air inlet terminal;

[0012] The number of the air inlet groups and the number of the access windows correspond to the number of the storage chambers, and the air inlet end is connected to the air inlet groups through a pipeline.

[0013] Preferably, the transparent window is provided with a plurality of access openings distributed corresponding to the storage cavity, the access window is located at the access openings, and is movably hinged to the transparent window.

[0014] Preferably, a sealing groove edge is provided at the access opening, and a sealing barrier edge matched with the sealing groove edge is provided at the access window.

[0015] Preferably, the refrigeration mechanism is provided with a refrigeration end head located inside the storage cavity, and the humidification mechanism is provided with a humidification end head located inside the storage cavity.

[0016] Preferably, the side box is also provided with an air supply mechanism electrically connected to the control unit, and two ends of the air supply mechanism are respectively connected to the air inlet end and the air inlet group.

[0017] Preferably, the air inlet group and / or the air inlet end are provided with a solenoid valve electrically connected to the control unit.

[0018] Preferably, the air inlet group is provided with an oxygen inlet, a carbon dioxide inlet, and a nitrogen inlet.

[0019] Preferably, a touch screen, a stop button, and a power button electrically connected to the control unit are disposed on the upper end surface of the console, and a power socket electrically connected to the control unit is disposed on the rear side of the console.

[0020] Preferably, the adjustable environment preservation device provided by the utility model further comprises a support frame, wherein the support frame comprises a plurality of legs fixedly arranged below the console, and movable pulleys are arranged at the ends of the legs.

[0021] Compared with the prior art, the utility model has the following advantages and effects:

[0022] (1) A fresh-keeping box with at least two layers of independent storage chambers inside can provide the best environment for fresh-keeping storage of multiple different fruits and vegetables at the same time, so as to improve the preservation effect and extend the preservation time of fruits and vegetables. At the same time, control experiments of multiple groups of fruits and vegetables can be carried out. Experiments under the same environmental conditions can be carried out on different fruits and vegetables, or experiments under different environmental conditions can be carried out on the same fruits and vegetables, effectively improving the efficiency of experimental research;

[0023] (2) A temperature sensing unit, a humidity sensing unit, and a gas concentration sensing unit electrically connected to the control unit can be used to detect the temperature, humidity, and gas concentration in the experimental environment in real time. At the same time, the fresh-keeping environment in the storage chamber is adjusted accordingly through the refrigeration mechanism, the humidification mechanism, and the air inlet group. The accuracy of the fresh-keeping environment adjustment is ensured through feedback closed-loop control, which can improve the preservation effect of fruits and vegetables on the one hand, and improve the accuracy of the experiment and the reliability of the experimental results on the other hand;

[0024] (3) A transparent window is provided on the front side of the fresh-keeping box, and a pick-and-place baffle window is movably connected to the transparent window. The transparent window can facilitate observation of the state of fruits and vegetables in the storage chamber. The pick-and-place baffle window can facilitate researchers to take and place experimental fruits and vegetables, and can ensure that the storage chamber is in a sealed experimental state during the experiment;

[0025] (4) The overall structure is simple and compact, easy to use and maintain. Compared with the existing preservation devices and experimental equipment on the market, it is inexpensive, effectively reducing the cost of experimental research. It is suitable for scholars' preliminary research work and is of great significance to scholars studying preservation technology, lowering the threshold for scholars' research experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the adjustable environment preservation device in the embodiment of the utility model;

[0027] Figure 2 Another structural schematic diagram of the adjustable environment preservation device in the embodiment of the utility model;

[0028] Figure 3 It is another structural schematic diagram of the adjustable environment fresh-keeping device in the embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of the circuit principle of the control unit in the adjustable environment preservation device in the embodiment of the utility model;

[0030] Figure 5 It is a schematic diagram of the gas concentration adjustment principle of the adjustable environment preservation device in the embodiment of the utility model.

[0031] Figure numerals: 1. Control console; 11. Air inlet group; 12. Touch screen; 13. Stop button; 14. Power on button; 15. Power plug interface; 2. Fresh-keeping box; 21. Storage cavity; 22. Access window; 221. Sealing edge; 23. Temperature sensor unit; 24. Humidity sensor unit; 25. Gas concentration sensor unit; 26. Air inlet terminal; 27. Access port; 271. Sealing groove edge; 28. Refrigeration terminal; 29. ​​Humidification terminal; 3. Side box; 4. Leg; 5. Moving pulley. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the present invention is now further described in conjunction with specific implementation methods.

[0033] Example:

[0034] like Figure 1~Figure 5 As shown, the utility model provides an adjustable environment preservation device, including a control console 1, a fresh-keeping box 2, a side box 3, and a support frame, wherein the fresh-keeping box 2 and the side box 3 are fixedly arranged above the control console 1, and the side box 3 is arranged on the left side of the fresh-keeping box 2, and the support frame is fixedly arranged below the control console 1.

[0035] The control unit is provided inside the console 1. The control unit may be a controller with a built-in microprocessor or a control chip, which can send and receive corresponding command signals. The upper end surface of the console 1 is provided with a touch screen 12, a stop button 13, and a power-on button 14. The touch screen 12, the stop button 13, and the power-on button 14 are all electrically connected to the control unit. Figure 4 As shown, the touch screen 12 can display the environmental information parameters received by the control unit and feed them back to the researchers. The researchers can also set the environmental parameters in different storage chambers 21 through the touch screen 12. In addition, when a dangerous situation occurs, the stop button 13 can be pressed to turn the power on and off. When the device needs to be awakened and used, the power button 14 can be pressed to wake up the control unit and the touch screen 12 to start working. The side wall of the console 1 is provided with a plug-in interface 15, which is electrically connected to the control unit through a wire, and the external power supply is used to power the entire device.

[0036] like Figure 1 , Figure 2 As shown, the fresh-keeping box 2 is fixedly arranged above the console 1, and two layers of independently sealed storage chambers 21 are arranged inside the fresh-keeping box 2. The storage chamber 21 is provided with a temperature sensor unit 23, a humidity sensor unit 24, and a gas concentration sensor unit 25 which are electrically connected to the control unit, so as to transmit the temperature parameter, humidity parameter, and gas concentration parameter information in the storage chamber 21 to the control unit; an air inlet terminal 26 is also arranged in the storage chamber 21, and the air inlet terminal 26 is connected to the air inlet group 11 through a pipeline.

[0037] like Figure 3 As shown, two groups of air inlet groups 11 are provided on the side wall of the console 1, and the two groups of air inlet groups 11 are respectively connected with the air inlet ends 26 of the two groups of storage chambers 21 through pipes. Specifically, the air inlet group 11 is provided with an oxygen inlet, a carbon dioxide inlet, and a nitrogen inlet. The oxygen inlet is connected to an oxygen cylinder, the carbon dioxide inlet is connected to a carbon dioxide cylinder, and the nitrogen inlet is connected to a nitrogen cylinder to provide corresponding oxygen, carbon dioxide, and nitrogen gas sources. The pipes connected to the oxygen inlet, the carbon dioxide inlet, and the nitrogen inlet are finally converged and connected to the pipe of the air inlet end 26. A multi-way valve with three inlets and one outlet can also be used to realize the connection between the air inlet end 26 and the air inlet group 11.

[0038] The air inlet group 11 and the air inlet end 26 are both provided with a solenoid valve, which is electrically connected to the control unit. Figure 5 As shown, the adjustment of nitrogen concentration is taken as an example for explanation, and other adjustments such as oxygen concentration and carbon dioxide concentration are similar. When the gas concentration sensor unit 25 detects that the nitrogen concentration in the storage chamber 21 is lower than the set value of the researchers, it transmits the corresponding nitrogen concentration value signal to the control unit. After receiving the corresponding signal, the control unit issues an opening command to the solenoid valve at the nitrogen inlet (at this time, the solenoid valves at the oxygen inlet and the carbon dioxide inlet are both in a closed state), and nitrogen is transported to the storage chamber 21 through an external nitrogen source (nitrogen cylinder) and the inlet end 26, thereby achieving the effect of increasing the nitrogen concentration. At the same time, the gas concentration sensor unit 25 still monitors the nitrogen concentration in the storage chamber 21 in real time until it reaches the preset nitrogen concentration value. At this time, the control unit issues a closing command to the solenoid valve at the nitrogen inlet to complete the increase and adjustment of the nitrogen concentration. Since the reduction adjustment of the nitrogen concentration is similar to the above-mentioned principle steps, it will not be described in detail here.

[0039] Combination Figure 1 , Figure 2 As shown, a transparent window is provided at the front side of the fresh-keeping box 2, and the transparent window is provided with two access ports 27 corresponding to the storage cavity 21. A access window 22 movably hinged with the transparent window is provided at the access port 27, and the access window 22 is matched with the access port 27. Optionally, in some embodiments, a return spring is provided at the hinge shaft between the access window 22 and the transparent window, so that the access window 22 can automatically return to close after opening, thereby blocking the access port 27. A sealing groove edge 271 is provided at the access port 27, and a sealing stop edge 221 matched with the sealing groove edge 271 is provided at the access port 27, so that the sealing stop edge 221 of the access window 22 is embedded in the sealing groove edge 271 at the access port 27 to seal the access port 27, thereby forming a closed environment for the storage cavity 21.

[0040] refer to Figure 1 , Figure 2 , Figure 3 As shown, the side box 3 is fixedly arranged above the console 1 and on the left side of the fresh-keeping box 2. A refrigeration mechanism and a humidification mechanism (not shown in the figure) are arranged inside the side box 3. The refrigeration mechanism and the humidification mechanism are both connected to the storage chamber 21 inside the fresh-keeping box 2, and both are electrically connected to the control unit. The refrigeration mechanism is provided with a refrigeration terminal 28 located inside the storage chamber 21, and the refrigeration terminal 28 is connected to the refrigeration mechanism through a pipeline. The humidification mechanism is provided with a humidification terminal 29 located inside the storage chamber 21, and the humidification terminal 29 is connected to the refrigeration mechanism through a pipeline. Specifically, the temperature and humidity adjustment process of the storage chamber 21 can refer to the above-mentioned nitrogen concentration adjustment process, which will not be described in detail here.

[0041] It should be noted that the refrigeration mechanism can be a common refrigeration equipment including a compressor, a condenser, an evaporator, and a throttling component. The refrigeration terminal 28 can exchange heat in the storage chamber 21 to achieve a refrigeration effect. The humidification mechanism can be a common humidifier. They are all mature existing technologies, so their structures and principles will not be described one by one here.

[0042] Optionally, in some embodiments, an air delivery mechanism is further provided inside the side box 3, and both ends of the air delivery mechanism are respectively connected to the air inlet terminal 26 and the air inlet group 11, and the air delivery mechanism is electrically connected to the control unit. The air delivery mechanism can be an air intake pump to deliver the external air source to the storage cavity 21 through the air inlet terminal 26.

[0043] like Figure 2 As shown, the support frame is fixedly arranged below the console 1, and the support frame includes four legs 4 fixedly connected to the console 1. The four legs 4 are spaced apart at the end corners of the lower end surface of the console 1, and movable pulleys 5 are arranged at the ends of the legs 4 to facilitate the movement of the entire device.

[0044] In summary, the adjustable environment preservation device provided by the utility model has a simple and compact structure, can prolong the preservation time of fruits and vegetables, improve the preservation effect of fruits and vegetables, and effectively reduce the cost of fruit and vegetable preservation experimental research. It can conduct experiments on different fruits and vegetables in the same experimental environment or under different environmental conditions, thereby improving the efficiency of the experiment. The adjustment of the preservation environment adopts closed-loop feedback control to ensure the precise control of the preservation environment conditions, thereby improving the accuracy and reliability of the preservation environment adjustment.

[0045] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. An adjustable environment preservation device, characterized in that: include: A control console (1), wherein a control unit is arranged inside the control console (1), and a plurality of air inlet groups (11) are arranged on a side wall of the control console (1); A fresh-keeping box (2), the fresh-keeping box (2) being fixedly arranged above the console (1), having at least two layers of independent storage cavities (21) arranged therein, a transparent window being arranged at the front side of the fresh-keeping box (2), and a retrieval and placement blocking window (22) being movably connected thereto; a side box (3), the side box (3) being fixedly arranged above the console (1) and located on one side of the fresh-keeping box (2), the side box (3) being provided with a refrigeration mechanism and a humidification mechanism electrically connected to the control unit, the refrigeration mechanism and the humidification mechanism both being in communication with the storage chamber (21); The storage cavity (21) is provided with a temperature sensing unit (23), a humidity sensing unit (24), and a gas concentration sensing unit (25) which are electrically connected to the control unit. The storage cavity (21) is also provided with an air intake terminal (26); The number of the air inlet groups (11) and the number of the access windows (22) both correspond to the number of the storage chambers (21), and the air inlet end (26) is connected to the air inlet group (11) via a pipeline.

2. The environment-adjustable fresh-keeping device according to claim 1, characterized in that: The transparent window is provided with a plurality of access openings (27) distributed corresponding to the storage cavity (21); the access window (22) is located at the access openings (27) and is movably hinged to the transparent window.

3. The adjustable environment preservation device according to claim 2, characterized in that: The access opening (27) is provided with a sealing groove edge (271), and the access window (22) is provided with a sealing edge (221) adapted to the sealing groove edge (271).

4. The environment-adjustable fresh-keeping device according to claim 1, characterized in that: The refrigeration mechanism is provided with a refrigeration end head (28) located inside the storage cavity (21), and the humidification mechanism is provided with a humidification end head (29) located inside the storage cavity (21).

5. The environment-adjustable fresh-keeping device according to claim 1, characterized in that: The side box (3) is also provided with an air supply mechanism electrically connected to the control unit, and two ends of the air supply mechanism are respectively connected to the air inlet end (26) and the air inlet group (11).

6. The environment-adjustable fresh-keeping device according to claim 1, characterized in that: The air inlet group (11) and / or the air inlet end (26) are provided with a solenoid valve electrically connected to the control unit.

7. The environment-adjustable fresh-keeping device according to claim 1, characterized in that: The air inlet group (11) is provided with an oxygen air inlet, a carbon dioxide air inlet, and a nitrogen air inlet.

8. The environment-adjustable fresh-keeping device according to claim 1, characterized in that: The upper end surface of the console (1) is provided with a touch screen (12) electrically connected to the control unit, a stop button (13), and a power button (14), and the rear side of the console (1) is provided with a power socket electrically connected to the control unit.

9. The environment-adjustable fresh-keeping device according to claim 1, characterized in that: It also comprises a support frame, the support frame comprising a plurality of legs (4) fixedly arranged below the console (1), and movable pulleys (5) are arranged at the ends of the legs (4).

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