Food fresh-keeping box device

Abstract

The invention relates to a food fresh-keeping box device which is used for keeping food fresh under the action of ozone gas circulation generation and gas convection. The invention provides a food fresh-keeping box device. The food fresh-keeping box device comprises a fresh-keeping box main body, an ozone generation circulating device and two check valve sections, through the design of the check valve section with a special structure, the sealing performance of the air inlet and the air outlet when the air inlet and the air outlet are closed can be ensured, so that the food fresh-keeping box device provided by the invention is simple in structure, convenient to operate and good in sealing performance, and the working efficiency of ozone gas in the fresh-keeping box main body is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of disinfection equipment, and in particular to a food preservation box device for preserving food by circulating ozone gas and gas convection. Background Art

[0002] As people's demand for the quality and safety of meat, fruits and vegetables increases, higher requirements are placed on the preservation of these foods, especially during the transportation of ingredients. In the case of no freezing, they can still maintain their freshness for a certain period of time to achieve ideal sensory appearance and quality.

[0003] Ozone has a broad-spectrum bactericidal effect. It can sterilize and disinfect fruits, vegetables, and meat, preserve and remove odors. It also has the function of degrading phosphorus-containing pesticides remaining on the surface of fruits and vegetables. During the sterilization process, its products are mainly oxygen and gaseous water, with no residual disinfectant medium. It is green and environmentally friendly, so it is considered as a sterilization gas for food preservation devices.

[0004] The existing devices for food sterilization mainly include the following:

[0005] 1. Install a vacuum pump, air compressor, solenoid valve, nitrogen storage tank, oxygen storage tank, and negative pressure tank in the disinfection cabinet, and use vacuum to draw a vacuum in the cabinet and flush nitrogen to suffocate the microorganisms. This device is suitable for preserving vegetables and fruits, and this device needs to be used in a fixed position indoors, and is not suitable for the transportation and turnover of food.

[0006] Second, install vacuum pumps, evaporators, humidifiers, refrigeration units, refrigeration compressors, drawers, storage boards, and ozone generators in the fresh-keeping cabinet to inhibit microbial growth and sterilize through freezing, refrigeration, and ozone. This device is suitable for fresh food preservation, and this device needs to be used in a fixed position indoors, and is not suitable for food transportation and turnover.

[0007] 3. An ozone generator, vacuum device, and gas release device are installed in the fresh-keeping smart cabinet. This device uses ozone to sterilize and preserve food, and the gas does not circulate. This device is suitable for preserving vegetables and fruits, and this device needs to be used in a fixed position indoors, and is not suitable for the transportation and turnover of food.

[0008] Therefore, there is a need to improve and innovate such products to suit the transportation turnover of food. Summary of the invention

[0009] The purpose of the present invention is to provide a convenient, effective and versatile food preservation box device, which can be suitable for food transportation turnover, can improve the utilization efficiency of ozone gas, so that the food placed in the food preservation box can be kept fresh for a longer time, and the food preservation box device has the characteristics of simple structure, easy operation, no residual disinfection medium, and green environmental protection.

[0010] The object of the present invention is achieved in that:

[0011] A food preservation box device comprises a preservation box body, an ozone generating circulation device and two check valve sections.

[0012] The fresh-keeping box main body comprises: a box body and a box cover which cooperate with each other to achieve sealing, and the box body is respectively provided with an air inlet and an air outlet.

[0013] The check valve section includes: an air inlet check valve section and an air outlet check valve section, which are respectively arranged at the air inlet and the air outlet; each check valve section includes: a pipe section body, the pipe section body has a through hole, so that when the check valve section is installed at the air inlet or the air outlet, the through hole realizes the connection between the inside and the outside of the fresh-keeping box body, and a hinge frame is provided on the outside of the pipe section body, and the hinge frame includes a vertical part and a horizontal part, one end of the vertical part is vertically fixed to the outer surface of the pipe section body, one end of the horizontal part is fixed to the other end of the vertical part, and the other end of the horizontal part extends horizontally toward the inner direction of the fresh-keeping box body and is connected to a valve plate through a rotating shaft, and the vertical part and the valve plate are connected by a tension spring.

[0014] The ozone generating circulation device comprises: an ozone generator device, a circulating air pump and a plurality of connecting pipes, wherein the air outlet end of the ozone generating device is connected to the air inlet end of the circulating air pump via a connecting pipe, the air inlet end of the ozone generating device is movably connected to the air outlet check valve section via an air outlet connecting pipe, and the air outlet end of the circulating air pump is movably connected to the air inlet check valve section via an air inlet connecting pipe.

[0015] Wherein: under normal conditions, the valve plate completely covers the inner port of the through hole located inside the fresh-keeping box body and closes the inner port of the through hole under the action of the tension spring, thereby realizing the closure of the air inlet or the air outlet; when the air inlet connecting pipe moves in the air inlet check valve section toward the inside of the fresh-keeping box body until the corresponding valve plate is pushed open, the valve plate will rotate around its corresponding rotating axis, and the air inlet is opened at this time; when the air outlet connecting pipe moves in the air outlet check valve section toward the inside of the fresh-keeping box body until the corresponding valve plate is pushed open, the valve plate will rotate around its corresponding rotating axis, and the air outlet is opened at this time; when both the air inlet and the air outlet are opened, a gas circulation convection structure is formed.

[0016] During operation, first put the food to be preserved into the box body and close the box cover. At this time, the two valve plates located at the air inlet and the air outlet respectively completely cover the inner ports of the corresponding through holes located inside the main body of the fresh-keeping box and seal the inner ports of the through holes under the action of the corresponding tension springs to form a sealed environment; then insert the air inlet connecting pipe into the air inlet check valve section and push open the corresponding valve, and insert the air outlet connecting pipe into the air outlet check valve section and push open the corresponding valve, at this time a gas circulation convection structure is formed; then start the power supply and the switches of each device, start the ozone generating device, and start the circulating air pump. At this time, the ozone gas passes through the check valve section at the air inlet. After entering the fresh-keeping box body, the ozone gas diffuses along the inner wall of the fresh-keeping box body toward the food surface. At the same time, due to the negative pressure near the air outlet, the original gas in the fresh-keeping box body and the mixed gas mixed with some newly entered ozone gas are sucked out of the fresh-keeping box body through the check valve section set at the air outlet and enter the ozone generator through the air outlet connecting pipe. The cycle continues until the ozone gas reaches the required concentration and stops working. The air inlet connecting pipe and the air outlet connecting pipe are removed or moved so that the valve plates corresponding to the air inlet and the air outlet respectively re-close the air inlet and the air outlet, and the ozone gas in the fresh-keeping box will not overflow. Afterwards, the ozone gas in the fresh-keeping box body is automatically reduced to oxygen to achieve the effect of preserving food.

[0017] The food preservation box device proposed in the present invention has a working principle of utilizing ozone gas to carry out gas circulation convection in the preservation box to achieve full contact between the ozone gas and the surface of the article, so as to improve the adequacy and effectiveness of preservation, which is significantly different from other preservation methods of nitrogen filling and freezing plus ozone; the food preservation box device proposed in the present invention has a main component which is a food preservation box, and an ozone circulation device which is a tool, which can achieve the sealing of the preservation box during the ozone gas circulation process and the subsequent ozone preservation operation, and can be used indoors and outdoors, so it can be used for the preservation of food during transportation and turnover, especially suitable for the preservation of fruits, vegetables, chickens, ducks, fish, meat and other foods; the food preservation box device proposed in the present invention can ensure the sealing of the air inlet and the air outlet when they are closed through the design of a special structure of the check valve section, so that the food preservation box device proposed in the present invention has a simple structure, convenient operation and good sealing, thereby ensuring the working efficiency of the ozone gas in the main body of the preservation box.

[0018] Among them, the concentration of ozone gas that needs to be reached can generally achieve a good preservation effect within the range of 60mg-2000mg per cubic meter. The selection and implementation of the specific concentration can be based on the category of food to be preserved in the fresh-keeping box body according to the standard or experience, and the working time can also be set according to the working efficiency of the ozone generator. In addition, it can also be accurately measured by arranging a concentration detection device in the fresh-keeping box body. In addition, in actual use, especially the implementation of some small-volume food fresh-keeping box devices, it can also be adjusted according to the operator's experience or taking into account the economic situation. The selection and monitoring of specific ozone concentrations can be achieved using existing technologies. They are not the innovations created by the present invention and will not be repeated here.

[0019] Preferably, the air inlet is arranged at the lower part of one side of the box body, and the air outlet is arranged at the upper part of the other side of the box body, so that the ozone gas can fully contact the food in the fresh-keeping box body after entering the interior of the fresh-keeping box body from the air inlet.

[0020] The box body is a rigid box with an opening at the top and capable of effectively carrying food, and the box cover cooperates with the upper opening of the box body to achieve sealing of the box body.

[0021] Furthermore, the inner surface of the fresh-keeping box body is provided with a plurality of mutually parallel grooves, which can guide ozone to diffuse inward along the four walls to the surface of the food when ozone enters the fresh-keeping box body, and can also improve the strength of the fresh-keeping box body.

[0022] Wherein, the air outlet connecting pipe is sleeved or screwed to the check valve section; the air inlet connecting pipe is sleeved or screwed to the check valve section. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other advantages and features of the present invention are shown by the following description of the embodiments of the present invention in conjunction with the accompanying drawings, which are given in the form of examples but are not limited thereto, in which:

[0024] Figure 1 The figure is a schematic diagram of the structural connection of a preferred embodiment of the food preservation box device of the present invention.

[0025] Figure 2 Shows Figure 1 The structure diagram of the air inlet connecting pipe of the embodiment shown in the figure is inserted into the air inlet check valve section, and the left part in the figure is the interior of the fresh-keeping box body.

[0026] Figure 3 Shows Figure 1 The structure diagram of the air outlet connecting pipe of the embodiment shown in the figure is inserted into the air outlet check valve section, and the right part in the figure is the interior of the fresh-keeping box body. DETAILED DESCRIPTION

[0027] like Figure 1 The food preservation box device shown comprises: a preservation box body 10 , an ozone generating circulation device 20 , an air inlet check valve section 30 and an air outlet check valve section 40 .

[0028] The fresh-keeping box body 10 is composed of a box body 11 and a box cover 12 that cooperate with each other to achieve sealing. The box body 11 is a rigid box with an opening at the top and can effectively carry food. The box cover 12 cooperates with the upper opening of the box body 11 to achieve sealing of the box body 11. The inner surface of the entire fresh-keeping box body 10 is provided with a plurality of rib grooves parallel to each other. An air inlet 13 is provided at the lower part of one side of the box body 11, and an air outlet 14 is provided at the upper part of the other side of the box body 11. An air inlet check valve section 30 is arranged at the air inlet 13, and an air outlet check valve section 40 is arranged at the air outlet 14. The check valve section 30 and the check valve section 40 can ensure the sealing of the air inlet 13 and the air outlet 14 when they are closed, thereby ensuring the working efficiency of the ozone gas in the fresh-keeping box body 10. The air inlet check valve section 30 and the air outlet check valve section 40 have the same structure, and the specific structure will be combined later. Figure 2 Describe in detail.

[0029] The ozone generating circulation device 20 includes: an ozone generator device 21, a circulating air pump 22 and a plurality of connecting pipes. The air outlet of the ozone generating device 21 is connected to the air inlet of the circulating air pump 22 via a connecting pipe 230, the air inlet of the ozone generating device 21 is movably connected to the air outlet check valve section 40 via an air outlet connecting pipe 234, and the air outlet of the circulating air pump 22 is movably connected to the air inlet check valve section 30 via an air inlet connecting pipe 233. The movable connection here can be detachable, or can be moved from the inside to the outside or from the outside to the inside along the central axis of the air inlet / air outlet. For example: a sleeve insertion method or a spiral method.

[0030] Combination Figure 2 As shown, the air inlet check valve segment 30 includes: a pipe segment body 31, the pipe segment body 31 has a through hole 310, so that when the check valve segment 30 is installed at the air inlet 13, the through hole 310 realizes the connection between the inside and outside of the fresh-keeping box body 10, a hinge frame 32 in a right angle shape is arranged on the outside of the pipe segment body 31, and the hinge frame 32 includes a vertical part 321 and a horizontal part 322, one end of the vertical part 321 is vertically fixed to the outer surface of the pipe segment body 31, one end of the horizontal part 322 is fixed to the other end of the vertical part 321, and the other end of the horizontal part 322 extends horizontally toward the inner direction of the fresh-keeping box body 10 and is connected to a valve plate 33 through a rotating shaft 323, and the vertical part 321 and the valve plate 33 are connected by a tension spring 34. Under normal conditions, the valve plate 33 completely covers the inner end of the through hole 310 located inside the fresh-keeping box body 10 and closes the inner end of the through hole 310 under the action of the tension spring 34, that is, the air inlet 13 is closed. When the air inlet connecting pipe 233 moves inside the air inlet check valve section 30 toward the inside of the fresh-keeping box body 10 to push the valve plate 33 open, the valve plate 33 can rotate around the rotating shaft 323, and the air inlet 13 is opened.

[0031] Since the air inlet 13 and the air outlet 14 are respectively arranged on two opposite sides (refer to Figure 1 As shown in FIG. 1 , the structure of the air outlet check valve 40 is symmetrical to that of the air inlet check valve 30. Figure 3As shown, the air outlet check valve segment 40 includes: a pipe segment body 41, the pipe segment body 41 has a through hole 410, so that when the air outlet check valve segment 40 is installed at the air outlet 14, the through hole 410 realizes the connection between the inside and outside of the fresh-keeping box body 10, a hinge frame 42 in a right angle shape is arranged on the outside of the pipe segment body 41, the hinge frame 42 includes a vertical part 421 and a horizontal part 422, one end of the vertical part 421 is vertically fixed to the outer surface of the pipe segment body 41, one end of the horizontal part 422 is fixed to the other end of the vertical part 421, and the other end of the horizontal part 322 extends horizontally toward the inner direction of the fresh-keeping box body 10 and is connected to a valve plate 43 through a rotating shaft 423, and the vertical part 421 and the valve plate 43 are connected by a tension spring 44. Under normal conditions, the valve plate 43 completely covers the inner end of the through hole 410 located inside the fresh-keeping box body 10 and closes the inner end of the through hole 410 under the action of the tension spring 44, that is, the air outlet 14 is closed. When the air outlet connecting pipe 234 moves inside the air outlet check valve section 40 toward the inside of the fresh-keeping box body 10 to push the valve plate 43 open, the valve plate 43 can rotate around the rotating shaft 423, and the air outlet 14 is opened.

[0032] When the air inlet 13 and the air outlet 14 are both opened, a circulating convection structure of the gas is formed.

[0033] During operation, the food 50 to be preserved is placed in the box body 11, the box cover 12 is closed, and then the air inlet connecting pipe 233 is inserted into the air inlet check valve section 30, and the air outlet connecting pipe 234 is inserted into the air outlet check valve section 40, the ozone generating device 21 is started, and the circulating air pump 22 starts to work. At this time, the ozone gas enters the fresh-keeping box body 10 through the air inlet check valve section 30 at the air inlet 13, and the ozone gas diffuses toward the surface of the food 50 along the four walls and the rib grooves at the bottom and top. Due to the negative pressure near the air outlet 14, the original air in the fresh-keeping box body 10 is The mixed gas mixed with some newly entered ozone gas is sucked out of the fresh-keeping box body 10 from the outlet check valve section 40 and enters the ozone generator 21 through the outlet connecting pipe 234, and continues to circulate until the ozone gas reaches the required concentration and stops working. The air inlet connecting pipe 233 and the air outlet connecting pipe 234 are removed or moved so that the valve plates 33 and 43 at the air inlet 13 and the air outlet 14 respectively close the air inlet 13 and the air outlet 14, so that the ozone gas in the fresh-keeping box body is automatically reduced to oxygen, achieving the effect of preserving food. Among them, the concentration of ozone gas required to be reached can generally achieve a good preservation effect within the range of 60mg-2000mg per cubic meter.

[0034] Although the present invention has been described above based on the preferred embodiments, this does not mean that the scope of the present invention is limited to the above-mentioned structure. As long as technicians in this technical field can easily develop equivalent alternative structures after reading the above description, all equivalent changes and modifications made without departing from the spirit and scope of the present invention should be included in the patent scope of the present invention.

Claims

1. A food preservation box device, characterized in that: include: Fresh-keeping box body, ozone generating circulation device and two check valve sections; The fresh-keeping box body comprises: a box body and a box cover which cooperate with each other to achieve sealing, and the box body is respectively provided with an air inlet and an air outlet; The check valve section comprises: an air inlet check valve section and an air outlet check valve section, which are respectively arranged at the air inlet and the air outlet; each check valve section comprises: a pipe section body, the pipe section body has a through hole, so that when the check valve section is installed at the air inlet or the air outlet, the through hole realizes the communication between the inside and outside of the fresh-keeping box body, a hinge frame is arranged on the outside of the pipe section body, the hinge frame comprises a vertical part and a horizontal part, one end of the vertical part is vertically fixed to the outer surface of the pipe section body, one end of the horizontal part is fixed to the other end of the vertical part, the other end of the horizontal part extends horizontally toward the inner direction of the fresh-keeping box body and is connected to a valve plate through a rotating shaft, and the vertical part and the valve plate are connected by a tension spring; The ozone generating circulation device comprises: an ozone generator device, a circulating air pump and a plurality of connecting pipes, wherein the air outlet end of the ozone generating device is connected to the air inlet end of the circulating air pump via a connecting pipe, the air inlet end of the ozone generating device is movably connected to the air outlet check valve section via an air outlet connecting pipe, and the air outlet end of the circulating air pump is movably connected to the air inlet check valve section via an air inlet connecting pipe; in: Under normal conditions, the valve sheet completely covers the inner port of the through hole located inside the fresh-keeping box body and closes the inner port of the through hole under the action of the tension spring; When the air inlet connecting pipe moves in the air inlet check valve section toward the interior of the fresh-keeping box body until the corresponding valve plate is pushed open, the valve plate will rotate around its corresponding rotation axis, and the air inlet is opened at this time; When the air outlet connecting pipe moves in the air outlet check valve section toward the interior of the fresh-keeping box body until the corresponding valve plate is pushed open, the valve plate rotates around the corresponding rotation axis, and the air outlet is opened at this time; When the air inlet and the air outlet are both opened, a gas circulation convection structure is formed.

2. The food preservation box device according to claim 1, characterized in that: The air inlet is arranged at a lower portion of one side surface of the box body, and the air outlet is arranged at an upper portion of another side surface of the box body.

3. The food preservation box device according to claim 1, characterized in that: The box body is a rigid box with an opening at the top and capable of effectively carrying food, and the box cover cooperates with the upper opening of the box body to achieve sealing of the box body.

4. The food preservation box device according to claim 1, characterized in that: The inner surface of the fresh-keeping box body is provided with a plurality of rib grooves parallel to each other.

5. The food preservation box device according to claim 1, characterized in that: The air outlet connecting pipe is sleeve-inserted or screw-connected to the check valve section.

6. The food preservation box device according to claim 1, characterized in that: The air inlet connecting pipe is sleeve-inserted or screw-connected to the check valve section.

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