A movable multi-layered shelf for electric field preservation
By designing a telescopic holding mechanism and a windproof mechanism for a movable multi-layer shelf, the problems of food adhesion and drying loss during frozen storage were solved, achieving high efficiency and energy saving of electric field preservation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN JINSHIWAN LABORATORY
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
AI Technical Summary
Existing electric field preservation equipment has problems such as food adhesion and difficulty in removal, air drying loss, and high energy consumption of the electric field during food freezing.
A movable multi-layer shelf was designed, which adopts a telescopic holding mechanism and a windproof mechanism, combined with slide rails, slides and electrode plates to achieve convenient food removal, windproof sealing and uniform electric field distribution.
It enables convenient food removal, prevents drying loss, reduces electric field energy consumption, and improves the electric field preservation effect.
Smart Images

Figure CN120466905B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of food preservation equipment technology, and in particular to a movable multi-layer shelf for electric field preservation. Background Technology
[0002] Food is prone to significant losses during storage; vegetable losses can reach as high as 20%, while meat and seafood undergo oxidation and degradation, leading to quality deterioration. Traditional refrigeration and freezing methods have limitations. For example, ice crystals formed during freezing can damage the meat's structure, resulting in thawing losses and loss of sensory qualities such as color and texture. Therefore, existing technologies employ combined refrigeration and freezing preservation techniques, such as using electrostatic fields, ozone, and ultraviolet lamps in conjunction with freezing, which greatly improves preservation efficiency. A patent with publication number CN119226666B discloses a mobile, modular, non-crystalline, intelligent meat freezing and preservation rack, which combines an electric field with freezing preservation, but it still has the following problems:
[0003] (1) The structure is relatively fixed. When food is placed in it, it is in an unfrozen state. When it is taken out, it is easy to stick to the placement frame and is not easy to take out.
[0004] (2) During freezing, food is prone to drying out without protective measures.
[0005] (3) The integral porous composite electrode plate is prone to high energy consumption. Summary of the Invention
[0006] The purpose of this invention is to provide a movable multi-layer shelf for electric field preservation, thereby solving the above-mentioned technical problems.
[0007] To achieve the above objectives, the present invention provides a movable multi-layer shelf for electric field preservation, comprising a movable telescopic frame and a plurality of telescopic holding mechanisms disposed on the movable telescopic frame; the telescopic holding mechanism includes a first fixed plate and a second fixed plate, a plurality of first telescopic plates are arranged side by side on the first fixed plate, and a plurality of second telescopic plates are arranged side by side on the second fixed plate, the first telescopic plates and the second telescopic plates are staggered, electrode plates are disposed within the first fixed plate and the second fixed plate, and slide rails are disposed on both sides of the first fixed plate and the second fixed plate, the slide rails are disposed on slide rails on the movable telescopic frame, and windproof mechanisms are disposed on the slide rails.
[0008] Preferably, the first telescopic plate has joint grooves on both sides, and the joint grooves on both sides are staggered. The second telescopic plate has joint ribs on both sides, and the joint ribs are set in the joint grooves. The top of both the first and second telescopic plates has protrusions.
[0009] Preferably, a folding water curtain is provided between the first fixing plate and the second fixing plate.
[0010] Preferably, baffles are inserted into the outermost first telescopic plate and the second telescopic plate.
[0011] Preferably, the mobile telescopic frame includes two sets of opposing columns, each set including two columns. The columns in the same set are fixedly connected by slide rails, and the columns in different sets are connected by telescopic drive cylinders.
[0012] Preferably, a pulley is provided at the bottom of the column, and the pulley is set in a strip-shaped limiting groove at the top of the water tank. A limiting pin is provided at one end of the strip-shaped limiting groove, and the limiting pin is set opposite to the pulley. A telescopic guide plate is hinged to the water tank at the other end of the strip-shaped limiting groove. A movable wheel is provided at the bottom of the water tank, and water guide plates are provided on both sides of the water tank.
[0013] Preferably, the windproof mechanism includes a windproof membrane, the fixed end of which is fixed to one end of a slide rail. A windproof drive assembly is provided inside the slide rail. A height adjustment rod is provided on the moving block in the windproof drive assembly. The telescopic end of the height adjustment rod is fixed with a clamp for holding the moving end of the windproof membrane.
[0014] Preferably, the windproof mechanism includes a windproof membrane, the fixed end of which is fixed to one end of the slide rail, and the movable end of which is mounted on a height adjusting rod via a fixing clip. The height adjusting rod is mounted on a movable rack, which is slidably mounted on the slide rail. The movable rack meshes with a first transmission gear, which is mounted on a second transmission gear. The second transmission gear is rotatably connected to the side of the slide rail and meshes with a trigger rack on the side of the slide rail.
[0015] Preferably, a connecting switch and a positioning pin are provided in the slide groove of the slide rail. The connecting switch is used to connect the electrode plate and the electric field generating device.
[0016] Preferably, several monitoring components are linearly distributed on the column, including temperature and humidity sensors and electric field sensors.
[0017] Therefore, the present invention employs the above-mentioned movable multi-layer shelf for electric field preservation, which has the following beneficial effects:
[0018] (1) The telescopic container mechanism uses repeated telescopic movements to detach the food that is frozen and stuck in the telescopic container mechanism, making it easier to remove it later.
[0019] (2) It is equipped with a windproof mechanism to seal and protect fresh food and prevent it from drying out.
[0020] (3) The telescopic holding mechanism uses a single electrode plate to form multiple electric fields, which makes the electric field distribution uniform and there is no electric field coverage in the area where there is no food, thus reducing the energy consumption of the electric field.
[0021] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of a movable multi-layer shelf structure for electric field preservation according to the present invention.
[0023] Figure 2 This is a schematic diagram of the telescopic container mechanism of the present invention;
[0024] Figure 3 This is a schematic diagram of the cooperation between the first telescopic plate and the second telescopic plate of the present invention;
[0025] Figure 4 This is a schematic diagram of the bottom structure of the column;
[0026] Figure 5 This is a schematic diagram of the windproof mechanism structure in Example 1;
[0027] Figure 6 This is a schematic diagram of the windproof mechanism in Example 2.
[0028] Figure Labels
[0029] 1. Mobile telescopic frame; 11. Column; 12. Slide rail; 13. Telescopic drive cylinder; 14. Pulley; 15. Water tank; 151. Strip-shaped limiting groove; 152. Telescopic guide plate; 153. Moving wheel; 154. Water guide plate; 2. Telescopic holding mechanism; 21. First fixed plate; 22. Second fixed plate; 23. First telescopic plate; 24. Second telescopic plate; 25. Slide rail; 251. Trigger rack; 26. Connecting groove; 27. Connecting rib; 28. Folding water curtain; 29. Baffle; 3. Windproof mechanism; 31. Windproof membrane; 32. Windproof drive assembly; 33. Moving block; 34. Height adjustment rod; 35. Fixing clamp; 36. Moving rack; 37. First transmission gear; 38. Second transmission gear; 4. Monitoring assembly. Detailed Implementation
[0030] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention 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 the invention. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0032] Example 1
[0033] like Figure 1 As shown, a movable multi-layer shelf for electric field preservation includes a movable telescopic frame 1 and several telescopic holding mechanisms 2 set on the movable telescopic frame 1. The multi-layer structure design improves storage capacity.
[0034] like Figure 2 As shown, the telescopic container mechanism 2 includes a first fixed plate 21 and a second fixed plate 22. A plurality of first telescopic plates 23 are arranged side-by-side on the first fixed plate 21, and a plurality of second telescopic plates 24 are arranged side-by-side on the second fixed plate 22. The first telescopic plates 23 and second telescopic plates 24 are staggered, as shown below. Figure 3As shown, the first telescopic plate 23 has connecting grooves 26 on both sides, and the connecting grooves 26 on both sides are staggered. The second telescopic plate 24 has connecting ribs 27 on both sides, and the connecting ribs 27 are set in the connecting grooves 26. The top of the first telescopic plate 23 and the second telescopic plate 24 are both provided with protrusions, which increase the roughness and make it easier to remove food that is frozen and stuck to the first telescopic plate 23 and the second telescopic plate 24. Electrode plates are provided in the first fixed plate 21 and the second fixed plate 22. The first fixed plate 21, the second fixed plate 22, the first telescopic plate 23 and the second telescopic plate 24 are all made of insulating material (such as polytetrafluoroethylene). The electrode plates are set inside, which is safer. The first fixed plate 21 and the second fixed plate 22 have slide rails 25 on both sides, and the slide rails 25 are set on the slide rails 12 on the movable telescopic frame 1 to realize the pull-out of the telescopic holding mechanism 2. Baffles 29 are inserted into the outermost first telescopic plate 23 and second telescopic plate 24, so that the food to be preserved is placed more securely in the storage space formed by the first telescopic plate 23, the second telescopic plate 24, the first fixed plate 21, the second fixed plate 22 and the baffles 29.
[0035] A folding water curtain 28 is provided between the first fixed plate 21 and the second fixed plate 22, so that excess water flows out from both sides along the folding grooves of the folding water curtain 28, preventing it from flowing to the lower telescopic container mechanism 2.
[0036] The mobile telescopic frame 1 includes two sets of opposing columns 11, each set including two columns 11. The columns 11 in the same set are fixedly connected by a slide rail 12, and the columns 11 in different sets are connected by a telescopic drive cylinder 13. By controlling the extension and retraction of the telescopic drive cylinder 13, the two sets of columns 11 can move closer and further apart, so that multiple telescopic holding mechanisms 2 can extend and retract simultaneously. On the one hand, the size of the telescopic holding mechanism 2 can be adjusted for foods with low humidity requirements or foods with their own packaging bags, making it easy to accommodate foods of different sizes and increase storage capacity. On the other hand, for foods with high humidity requirements, such as raw meat or seafood, excess moisture can be filtered out when the telescopic holding mechanism 2 is in the extended state. At the same time, when taking it out, the repeated extension and retraction action can detach the food frozen and stuck in the telescopic holding mechanism 2, making it easier to take out later.
[0037] A pulley 14 is provided at the bottom of the column 11. The pulley 14 is located in the strip-shaped limiting groove 151 at the top of the water tank 15. A limiting pin (spring pin) is provided at one end of the strip-shaped limiting groove 151. Figure 4As shown, the limiting pin is positioned opposite to the pulley 14. A telescopic guide plate 152 is hinged to the water tank 15 at the other end of the strip-shaped limiting groove 151. The bottom of the water tank 15 is equipped with a moving wheel 153, and water guide plates 154 are located on both sides of the water tank 15. During transport, the telescopic holding mechanism 2 is in the extended state. Excess water flows through the gap between the first telescopic plate 23 and the second telescopic plate 24 to the folding water curtain 28. The water in the folding water curtain 28 flows out from both sides and is guided into the water tank 15 through the water guide plates 154. After moving to the cold storage, the telescopic guide plate 152 is pulled out, the limiting pin no longer limits the pulley 14, and the telescopic frame 1 slides out along the strip-shaped limiting groove 151 and moves along the telescopic guide plate 152 to the ground, detaching from the water tank 15, and then is pushed into the cold storage. The telescopic holding mechanism 2 can be adjusted according to actual cleaning needs.
[0038] A connecting switch and a positioning pin are installed in the slide groove of the slide rail 12. The connecting switch is used to connect the electrode plate and the electric field generating device. The positioning pin is used to position the first fixed plate 21 and the second fixed plate 22 when the telescopic container 2 is in the slide rail 12, so as to prevent the telescopic container 2 from shaking during transportation. The connecting switch is a limit switch, which is used to make the electrode plate and the electric field generating device electrically connected after the position is reached. Activating the electric field generating device can cover the area with the telescopic container 2, so that the electric field is uniform. There is no electric field in the area without the telescopic container 2, thus reducing energy consumption.
[0039] Several monitoring components 4 are linearly distributed on the column 11. The monitoring components 4 include temperature and humidity sensors and electric field sensors. The type and number of sensors can be increased according to monitoring needs to monitor the temperature, humidity and electric field strength near the telescopic container mechanism 2.
[0040] To prevent fresh food from drying out, the slide rail 12 is equipped with a windproof mechanism 3, such as... Figure 5 As shown, the windproof mechanism 3 includes a windproof membrane 31. The fixed end of the windproof membrane 31 is fixed to one end of the slide rail 12. The movable end of the windproof membrane 31 is mounted on the height adjustment rod 34 through a fixing clip 35. The height adjustment rod 34 is mounted on a movable rack 36. The movable rack 36 is slidably mounted on the slide rail 12. The movable rack 36 meshes with a first transmission gear 37. The first transmission gear 37 is mounted on a second transmission gear 38. The second transmission gear 38 is rotatably connected to the side of the slide rail 12. The second transmission gear 38 meshes with a trigger rack 251 on the side of the slide rail 25.
[0041] When the telescopic container mechanism 2 is pushed along the slide rail 12, the rack 251 is triggered to drive the second transmission gear 38 to rotate. The second transmission gear 38 rotates synchronously with the first transmission gear 37. The first transmission gear 37 drives the moving rack 36 to move, so that the windproof membrane 31 covers the telescopic container mechanism 2. The height adjustment rod 34 (either an electric push rod or an existing telescopic rod) retracts downward, so that the windproof membrane 31 seals the top of the telescopic container mechanism 2.
[0042] Example 2
[0043] The difference between this embodiment and Embodiment 1 is that the windproof mechanism 3 is different. The windproof mechanism 3 includes a windproof membrane 31, and the fixed end of the windproof membrane 31 is fixed to one end of the slide rail 12, such as... Figure 6 As shown, a windproof drive assembly 32 (motor screw mechanism) is provided inside the slide rail 12. A height adjustment rod 34 is provided on the moving block 33 in the windproof drive assembly 32. The telescopic end of the height adjustment rod 34 is fixed with a fixing clamp 35 for clamping the moving end of the windproof film 31, so as to realize the independent control of the windproof mechanism 3.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.
Claims
1. A movable multi-layer shelf for electric field preservation, characterized in that: The device includes a mobile telescopic frame and several telescopic holding mechanisms mounted on the mobile telescopic frame. Each telescopic holding mechanism includes a first fixed plate and a second fixed plate. Several first telescopic plates are arranged side-by-side on the first fixed plate, and several second telescopic plates are arranged side-by-side on the second fixed plate. The first and second telescopic plates are staggered. The first telescopic plates have connecting grooves on both sides, which are staggered. The second telescopic plates have connecting ribs on both sides, which are located within the connecting grooves. Both the first and second telescopic plates have protrusions on their tops. Electrode plates are installed within the first and second fixed plates. Slides are provided on both sides of the first and second fixed plates, and these slides are mounted on slide rails on the mobile telescopic frame. The mobile telescopic frame includes two sets of opposing columns, each set consisting of two columns. Columns in the same set are fixedly connected by slide rails, while columns in different sets are connected by telescopic drive cylinders. A windproof mechanism is provided on the slide rails.
2. The movable multi-layer shelf for electric field preservation according to claim 1, characterized in that: A folding water curtain is installed between the first fixed plate and the second fixed plate.
3. A movable multi-layer shelf for electric field preservation according to claim 2, characterized in that: Baffles are inserted into the outermost first and second telescopic plates.
4. A movable multi-layer shelf for electric field preservation according to claim 3, characterized in that: The column is equipped with a pulley at the bottom, which is located in a strip-shaped limiting groove at the top of the water tank. A limiting pin is provided at one end of the strip-shaped limiting groove, and the limiting pin is positioned opposite to the pulley. A telescopic guide plate is hinged to the water tank at the other end of the strip-shaped limiting groove. The bottom of the water tank is equipped with a movable wheel, and water guide plates are provided on both sides of the water tank.
5. A movable multi-layer shelf for electric field preservation according to claim 4, characterized in that: The windproof mechanism includes a windproof membrane, the fixed end of which is fixed to one end of a slide rail. A windproof drive assembly is installed inside the slide rail. A height adjustment rod is installed on the moving block in the windproof drive assembly. The telescopic end of the height adjustment rod is fixed with a clamp for holding the moving end of the windproof membrane.
6. A movable multi-layer shelf for electric field preservation according to claim 4, characterized in that: The windproof mechanism includes a windproof membrane. The fixed end of the windproof membrane is fixed to one end of the slide rail. The movable end of the windproof membrane is set on the height adjustment rod by a fixing clip. The height adjustment rod is installed on the movable rack. The movable rack is slidably set on the slide rail and meshes with the first transmission gear. The first transmission gear is installed on the second transmission gear. The second transmission gear is rotatably connected to the side of the slide rail and meshes with the trigger rack on the side of the slide rail.
7. A movable multi-layer shelf for electric field preservation according to claim 5 or 6, characterized in that: The slide rail is equipped with a connecting switch and a positioning pin. The connecting switch is used to connect the electrode plate and the electric field generating device.
8. A movable multi-layer shelf for electric field preservation according to claim 7, characterized in that: Several monitoring components are linearly distributed on the column, including temperature and humidity sensors and electric field sensors.