Fresh-keeping device with high penetration electric field

Abstract

The utility model discloses a high-penetration electric field fresh-keeping device, which relates to the field of food fresh-keeping storage equipment and comprises a box body, a support plate, a raw material support plate component, a pole plate component, a screw limiting component, two guide rods, a threaded rod and a distance adjusting hand wheel, the support plate is fixedly connected to the bottom of an inner cavity of the box body, and the two guide rods are symmetrically arranged in the inner cavity of the box body; the two threaded rods are symmetrically arranged on the two sides of the supporting plate, one end of each threaded rod is rotationally connected with the supporting plate through the corresponding screw limiting assembly, the other end of each threaded rod penetrates through the cavity wall of the box body and then is fixedly connected with the distance adjusting hand wheel, and the raw material supporting plate assembly is detachably arranged at the top of the supporting plate in a lap joint mode. The two polar plate assemblies are slidably connected to the guide rods in a sleeving manner and are located on the two sides of the supporting plate correspondingly, and the threaded rods are in threaded connection with the polar plate assemblies. The electric field intensity is effectively adjusted by changing the distance between the two pole plate assemblies, so that the requirements of different food material fresh-keeping environments are met.

Description

Technical Field

[0001] This utility model relates to the field of food preservation and storage equipment, and in particular to a high-penetration electric field preservation device. Background Technology

[0002] Nowadays, consumers are paying more and more attention to the freshness, taste and nutrition of food. Food is severely damaged during storage and transportation. According to statistics, the annual loss rate of food raw materials due to insufficient preservation technology reaches 20% to 30%.

[0003] Although there are many types of food preservation technologies available today, each has its limitations. For example, while chemical preservatives can effectively extend the shelf life of food, their residues may pose a health threat. Long-term consumption of foods containing preservatives may cause allergic reactions, weakened immunity, and even potential harm to organs such as the liver and kidneys. Physical preservation methods also have shortcomings. For instance, while ultraviolet sterilization can effectively kill microorganisms on the surface of food, it cannot penetrate deep into the food, making it difficult to achieve a comprehensive preservation effect. Refrigeration and freezing technologies, although widely used in food preservation, also have many problems. On the one hand, refrigeration and freezing equipment consumes a lot of energy, and frequent opening and closing of the refrigerator accelerates energy consumption. On the other hand, low temperatures can damage food cells, leading to juice loss, poor taste, and affecting food quality. In addition, modified atmosphere packaging requires strict control of gas composition, the equipment is expensive and complex to maintain, and even slight deviations can prevent the achievement of ideal preservation results, making it difficult to adapt to different food characteristics and preservation time requirements.

[0004] Therefore, how to develop a high-penetration electric field preservation device that can effectively adjust the electric field strength by changing the distance between the two electrode components to meet the needs of different food preservation environments has become a technical problem that urgently needs to be solved by people in this field. Utility Model Content

[0005] The purpose of this invention is to provide a high-penetration electric field preservation device that effectively adjusts the electric field strength by changing the distance between the two electrode components to meet the needs of different food preservation environments.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses a high-penetration electric field preservation device, comprising a housing, a support plate, a raw material tray assembly, an electrode plate assembly, a screw limiting assembly, guide rods, threaded rods, and an adjusting handwheel. The housing is configured as a cavity structure with an open top. The support plate is fixedly connected to the bottom of the inner cavity of the housing. Two guide rods are symmetrically arranged within the inner cavity of the housing, perpendicular to the support plate. Two threaded rods are symmetrically arranged on both sides of the support plate, with one end of each threaded rod rotatably connected to the support plate via the screw limiting assembly. The other end of the threaded rod passes through the cavity wall of the box and is fixedly connected to the adjusting handwheel. The raw material pallet assembly is detachably placed on the top of the support plate and is slidably connected to the cavity wall of the box. Both electrode assemblies are slidably sleeved on the guide rod and are located on both sides of the support plate. The threaded rod is threadedly connected to the electrode assembly and is used to drive the electrode assembly to slide back and forth along the axial direction of the guide rod. The electrode assembly has a first clearance hole for the raw material pallet assembly to pass through.

[0008] Preferably, it also includes a lid, which is attached to the top of the box body; the bottom plate and the four side plates of the box body are detachably spliced ​​together and fastened together with bolts.

[0009] Preferably, the middle section of the guide rod passes through the support plate and is fixedly connected to the support plate, and the two ends of the guide rod are respectively fixedly connected to the inner cavity wall of the box.

[0010] Preferably, the screw limiting assembly includes a sleeve, a first limiting block, a second limiting block, a baffle, and end caps. The sleeve is configured as a tubular structure with openings at both ends. The two end caps are respectively installed on the open ends on both sides of the sleeve, and the end caps have openings for the threaded rods to pass through. The baffle is horizontally positioned at the center of the inner cavity of the sleeve, dividing the inner cavity of the sleeve into two independent spaces. The first limiting block and the second limiting block are both cylindrical structures and are rotatably embedded in the two inner cavities of the sleeve. The two threaded rods are fixedly connected at their respective ends to the first limiting block and the second limiting block, and the other ends of the threaded rods pass through the end caps and the cavity wall of the housing in sequence before being fixedly connected to the adjusting handwheel.

[0011] Preferably, the raw material pallet assembly includes a raw material pallet body and two limiting sliders. The two limiting sliders are respectively fixed on both sides of the raw material pallet body. The inner wall of the box is provided with a limiting groove that matches the limiting slider. The raw material pallet body is slidably connected to the inner wall of the box through the cooperation of the limiting slider and the limiting groove. The bottom of the raw material pallet body is in contact with the top of the support plate.

[0012] Preferably, the electrode assembly includes an electrode mounting plate, an electrode body, spikes, sliding sleeves, a nut mounting seat, and a nut. The nut mounting seat and the two sliding sleeves are all bolted side by side to the bottom of the electrode mounting plate, and the nut mounting seat is located in the middle of the two sliding sleeves. The nut is mounted on the nut mounting seat and threadedly connected to the threaded rod. The sliding sleeve is slidably sleeved to the guide rod. The electrode mounting plate is provided with a second clearance hole for the guide rod and the threaded rod to pass through. The two electrode bodies are respectively fixedly connected to the opposite surfaces of the electrode mounting plate. A plurality of spikes are arranged in a matrix on the side of the electrode body away from the electrode mounting plate.

[0013] Preferably, the first clearance hole is located in the lower middle part of the electrode mounting plate, and the electrode body is located above the first clearance hole.

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

[0015] 1) This utility model applies a high-penetration electric field to preserve food raw materials. Combined with the pointed array structure formed by the spikes on the electrode body, it significantly increases the electric field line density and enhances the effect of the electric field. This design can effectively inhibit the growth of microorganisms and delay the oxidation of food, thereby significantly extending the shelf life of food.

[0016] 2) By rotating the pitch adjustment handwheel to adjust the distance between the electrode plates, the user can flexibly adjust the electric field strength according to the type, quantity and preservation requirements of different foods. This design enables the device to be widely used in the preservation of various fresh foods and has high applicability and practicality. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a top view of a high-penetration electric field preservation device according to the present invention;

[0019] Figure 2 This is a front sectional view (AA) of a high-penetration electric field preservation device according to the present invention;

[0020] Figure 3 This is a side sectional view (BB) of a high-penetration electric field preservation device according to the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Box body; 11. Limiting groove; 2. Support plate; 3. Raw material pallet assembly; 31. Raw material pallet body; 32. Limiting slider; 4. Electrode assembly; 41. Electrode mounting plate; 42. Electrode body; 43. Spike; 44. Sliding sleeve; 45. Nut mounting seat; 46. Nut; 47. First clearance hole; 5. Screw limiting assembly; 51. Sleeve; 52. First limiting block; 53. Second limiting block; 6. Guide rod; 7. Threaded rod; 8. Adjusting handwheel. Detailed Implementation

[0022] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] like Figure 1-3 As shown, a high-penetration electric field preservation device includes a housing 1, a support plate 2, a raw material tray assembly 3, an electrode plate assembly 4, a screw limiting assembly 5, guide rods 6, threaded rods 7, and an adjusting handwheel 8. The housing 1 is configured as a cavity structure with an open top. The support plate 2 is fixedly connected to the bottom of the inner cavity of the housing 1. Two guide rods 6 are symmetrically arranged in the inner cavity of the housing 1, and the guide rods 6 are perpendicular to the support plate 2. Two threaded rods 7 are symmetrically arranged on both sides of the support plate 2, and one end of each threaded rod 7 is rotatably connected to the support plate 2 through the screw limiting assembly 5. The other end of the threaded rod 7 passes through the cavity wall of the housing 1 and is fixedly connected to the adjusting handwheel 8. The raw material pallet assembly 3 is detachably placed on the top of the support plate 2, and the raw material pallet assembly 3 is slidably connected to the cavity wall of the housing 1. The two electrode assemblies 4 are slidably sleeved on the guide rod 6 and are located on both sides of the support plate 2. The threaded rod 7 is threadedly connected to the electrode assembly 4 and is used to drive the electrode assembly 4 to slide back and forth along the axial direction of the guide rod 6. The electrode assembly 4 is provided with a first clearance hole 47 for the raw material pallet assembly 3 to pass through.

[0024] Specifically, it also includes a lid, which is attached to the top of the box body 1; the bottom plate and the four side plates of the box body 1 are detachably spliced ​​together and fastened together with bolts.

[0025] Specifically, the enclosure 1 is made of insulating material to ensure that the device has good electrical insulation performance during operation. The outer shell of the enclosure 1 is equipped with a grounding wire, which can effectively conduct away any leakage current that may be generated, avoid injury to the operator due to leakage, and further improve the safety and reliability of the device.

[0026] Specifically, the lid has multiple evenly distributed ventilation holes to ensure adequate gas exchange between the inner cavity of the box 1 and the external environment. This design not only maintains the relative balance of gas composition in the inner cavity of the box 1, but also effectively regulates the internal humidity, preventing the preservation effect from being affected by gas composition imbalance or excessive humidity.

[0027] Specifically, the middle section of the guide rod 6 passes through the support plate 2 and is fixedly connected to the support plate 2, and the two ends of the guide rod 6 are respectively fixedly connected to the inner cavity wall of the box body 1.

[0028] Specifically, the screw limiting assembly 5 includes a sleeve 51, a first limiting block 52, a second limiting block 53, a baffle, and an end cap. The sleeve 51 is a tubular structure with openings at both ends. The two end caps are respectively installed on the open ends on both sides of the sleeve 51, and the end caps have openings for the threaded rod 7 to pass through. The baffle is horizontally positioned at the center of the inner cavity of the sleeve 51 and divides the inner cavity of the sleeve 51 into two independent spaces. The first limiting block 52 and the second limiting block 53 are both cylindrical structures and are rotatably embedded in the two inner cavities of the sleeve 51. The two threaded rods 7 are fixedly connected to the first limiting block 52 and the second limiting block 53 respectively at their close ends. The other ends of the threaded rods 7 pass through the end cap and the cavity wall of the housing 1 in sequence and are fixedly connected to the adjusting handwheel 8.

[0029] Specifically, by rotating the adjustment handwheels 8 on both sides of the housing 1 clockwise or counterclockwise, the threaded rod 7, which is fixedly connected to the adjustment handwheels 8, can be driven to rotate. The rotation of the threaded rod 7 further drives the electrode mounting plate 41, electrode body 42 and spike 43, which are threaded to it, to move along the axial direction of the threaded rod 7, thereby realizing the position adjustment of the electrode assembly 4.

[0030] Specifically, in this utility model, the two threaded rods 7 are independently rotated by the first limiting block 52 and the second limiting block 53 set in the sleeve 51, which facilitates the effective adjustment of the sliding position of the single-sided electrode plate mounting plate 41, the electrode plate body 42 and the spike 43. This design enables the device to flexibly adapt to the placement requirements of fresh food of different sizes and shapes, further improving the applicability of the device.

[0031] Specifically, the raw material pallet assembly 3 includes a raw material pallet body 31 and two limiting sliders 32. The two limiting sliders 32 are respectively fixed on both sides of the raw material pallet body 31. The inner wall of the box 1 is provided with a limiting groove 11 that matches the limiting slider 32. The raw material pallet body 31 is slidably connected to the inner wall of the box 1 through the mutual cooperation of the limiting slider 32 and the limiting groove 11. The bottom of the raw material pallet body 31 is in contact with the top of the support plate 2.

[0032] Specifically, the electrode assembly 4 includes an electrode mounting plate 41, an electrode body 42, spikes 43, sliding sleeves 44, a nut mounting seat 45, and a nut 46. The nut mounting seat 45 and the two sliding sleeves 44 are all bolted side by side to the bottom of the electrode mounting plate 41, and the nut mounting seat 45 is located in the middle of the two sliding sleeves 44. The nut 46 is mounted on the nut mounting seat 45 and threadedly connected to the threaded rod 7. The sliding sleeves 44 are slidably sleeved to the guide rod 6. The electrode mounting plate 41 is provided with a second clearance hole for the guide rod 6 and the threaded rod 7 to pass through. The two electrode bodies 42 are respectively fixedly connected to the opposite surfaces of the electrode mounting plate 41. A plurality of spikes 43 are arranged in a matrix on the side of the electrode body 42 away from the electrode mounting plate 41.

[0033] Specifically, the space formed between the top of the raw material tray body 31 and the two electrode plate bodies 42 is used to place food raw materials. When in use, the area between the two electrode plate bodies 42 constitutes an electric field generation area, and food preservation is achieved by applying an alternating electric field or a constant electric field.

[0034] Specifically, according to Gauss's law, the charge distribution on the surface of a conductor is non-uniform, and the electric field strength is proportional to the surface charge density. For a charged conductor, the greater the surface curvature (such as at the tip), the greater the surface charge density and the denser the electric field lines. Based on this principle, this invention arranges multiple spikes 43 in an array on the opposite surfaces of the two electrode bodies 42 to form a spike array structure where the electric field strength is concentrated at the tips. This design makes the electric field lines at the tips of the spikes 43 more densely distributed, thereby significantly increasing the electric field line density in the electric field generation area, further enhancing the electric field effect on the food and improving the preservation performance.

[0035] Specifically, according to the electric field strength formula E = U / d (where E is the electric field strength, U is the voltage of the electrode body 42, and d is the distance between the two electrode bodies 42), the electric field strength can be effectively adjusted by adjusting the distance d between the two electrode bodies 42 while keeping the voltage U constant. This utility model drives the threaded rod 7 to rotate by rotating the pitch adjustment handwheel 8, thereby driving the electrode assembly 4 to slide along the guide rod 6, thus achieving precise control of the electrode spacing. This design allows operators to flexibly adjust the electric field strength according to actual preservation needs and optimize the preservation effect.

[0036] Specifically, the first clearance hole 47 is formed in the lower middle part of the electrode mounting plate 41, and the electrode body 42 is located above the first clearance hole 47.

[0037] The usage process of this utility model is as follows:

[0038] First, place the food raw materials to be preserved on the top of the raw material tray body 31. According to the type and quantity of the food to be preserved, adjust the position of the electrode assembly 4 by rotating the adjustment handwheels 8 on both sides of the box 1. Rotating the adjustment handwheels 8 clockwise or counterclockwise can drive the threaded rod 7 to rotate, thereby driving the electrode mounting plate 41, electrode body 42 and spikes 43 to slide along the guide rod 6, so as to achieve precise adjustment of the distance between the two electrode bodies 42. According to the electric field strength formula E=U / d, under the condition of constant voltage, the electric field strength can be effectively adjusted by adjusting the electrode spacing d to meet the preservation needs of different foods.

[0039] Secondly, close the lid on the top of the box body 1 to ensure that the inner cavity of the box body 1 is in a relatively sealed state, and the vent holes on the lid can maintain gas exchange between the inner cavity of the box body 1 and the external environment, so as to avoid affecting the preservation effect due to gas composition imbalance.

[0040] Then, the device power is turned on, and an alternating electric field or a constant electric field is applied to the electrode assembly 4. The electric field generation area between the two electrode bodies 42 will generate a high-penetration electric field. At the same time, the tip array structure of the spikes 43 will further concentrate the electric field lines and increase the electric field line density, thereby enhancing the electric field effect on the food raw materials and achieving efficient preservation.

[0041] Finally, during the preservation process, the distance between the two electrode bodies 42 can be finely adjusted at any time by adjusting the distance handwheel 8 as needed to optimize the electric field strength.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A high-penetration electric field freshness keeping device, characterized by: The utility model provides a kind of raw material processing device, including box (1), support plate (2), raw material supporting plate assembly (3), polar plate assembly (4), screw rod limiting assembly (5), guide rod (6), threaded rod (7) and distance adjusting hand wheel (8), the box (1) is set as the cavity structure of top opening, the support plate (2) is fixedly connected in the inner chamber bottom of the box (1), two the guide rod (6) is symmetrically set in the inner chamber of the box (1), and the guide rod (6) is vertically arranged with the support plate (2), two the threaded rod (7) is symmetrically set in the both sides of the support plate (2), and one end of the threaded rod (7) is rotatably connected with the support plate (2) by the screw rod limiting assembly (5), the other end of the threaded rod (7) is fixedly connected with the distance adjusting hand wheel (8) after penetrating the cavity wall of the box (1), the raw material supporting plate assembly (3) is detachably placed on the top of the support plate (2), and the raw material supporting plate assembly (3) is slidably connected with the cavity wall of the box (1), two the polar plate assembly (4) is slidably connected on the guide rod (6), and is respectively located in the both sides of the support plate (2), the threaded rod (7) is threadedly connected with the polar plate assembly (4), and is used to drive the polar plate assembly (4) reciprocating sliding along the axis direction of the guide rod (6), the polar plate assembly (4) is provided with the first avoiding hole (47) for the raw material supporting plate assembly (3) to pass through.

2. A high-penetration electric field fresh-keeping device according to claim 1, characterized in that: It also includes a box cover, which is connected to the top of the box (1). The bottom plate and the surrounding side plate of the box (1) can be detachably connected and fastened by bolts.

3. A high-penetration electric field fresh-keeping device according to claim 2, characterized in that: The middle section of the guide rod (6) penetrates the support plate (2) and is fixedly connected with the support plate (2). The two ends of the guide rod (6) are fixedly connected with the inner cavity wall of the box (1).

4. A high-penetration electric field fresh-keeping device according to claim 3, characterized in that: The screw rod limiting assembly (5) includes a sleeve (51), a first limiting block (52), a second limiting block (53), a baffle, and an end cap. The sleeve (51) is a tubular structure with open ends. Two end caps are placed on the open ends of the sleeve (51). The end caps have openings for the threaded rods (7) to pass through. The baffle is horizontally placed in the center of the inner cavity of the sleeve (51), dividing the inner cavity into two separate spaces. The first limiting block (52) and the second limiting block (53) are cylindrical structures and are rotatably embedded in the two inner cavities of the sleeve (51). The ends of the two threaded rods (7) that are close to each other are fixedly connected with the first limiting block (52) and the second limiting block (53), respectively. The other ends of the threaded rods (7) are fixedly connected with the distance adjusting hand wheel (8) after sequentially penetrating the end caps and the cavity wall of the box (1).

5. A high-penetration electric field fresh-keeping device according to claim 4, characterized in that: The raw material supporting plate assembly (3) comprises a raw material supporting plate body (31) and limiting sliding blocks (32), two limiting sliding blocks (32) are fixed on the two sides of the raw material supporting plate body (31) respectively, limiting grooves (11) matched with the limiting sliding blocks (32) are formed on the inner cavity wall of the box body (1), the raw material supporting plate body (31) is connected with the inner cavity side wall of the box body (1) through the mutual cooperation of the limiting sliding blocks (32) and the limiting grooves (11), and the bottom of the raw material supporting plate body (31) is in contact with the top of the supporting plate (2).

6. A high-penetration electric field fresh-keeping device according to claim 5, characterized in that: The polar plate assembly (4) comprises a polar plate mounting plate (41), a polar plate body (42), spikes (43), sliding sleeves (44), a nut mounting seat (45) and nuts (46), the nut mounting seat (45) and two sliding sleeves (44) are connected side by side on the bottom of the polar plate mounting plate (41) through bolts, the nut mounting seat (45) is located at the middle position of the two sliding sleeves (44), the nuts (46) are mounted on the nut mounting seat (45) and are in threaded connection with the threaded rods (7), the sliding sleeves (44) are in sliding sleeve connection with the guide rods (6), the polar plate mounting plate (41) is provided with second avoiding holes for the guide rods (6) and the threaded rods (7) to pass through, two polar plate bodies (42) are fixedly connected on the opposite surfaces of the polar plate mounting plate (41) respectively, and a plurality of spikes (43) are arranged in a matrix on the side, away from the polar plate mounting plate (41), of the polar plate body (42).

7. A high-penetration electric field fresh-keeping device according to claim 6, characterized in that: The first avoiding hole (47) is formed in the middle lower part of the polar plate mounting plate (41), and the polar plate body (42) is located above the first avoiding hole (47).

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