Micro-freezing fresh-keeping processing equipment and use method thereof

Abstract

The invention relates to the technical field of freezing equipment, and discloses micro-freezing fresh-keeping processing equipment and a using method thereof.The processing equipment comprises a fresh-keeping bin, a circulating pipeline is arranged on the inner wall of the fresh-keeping bin, a bin door is rotationally connected with the outer wall of the fresh-keeping bin through a main shaft fixedly connected to the side edge, and an I-shaped wheel is fixedly connected to the top end of the main shaft; a linkage piece is arranged outside the spool, and the bearing piece is located in an inner cavity of the fresh-keeping bin. The linkage part is arranged, when the bin door is rotationally opened, the linkage part is driven to move by rotating power of the bin door, the linkage part drives the bearing part to move towards the interior of the fresh-keeping bin, food is transferred to a relatively stable low-temperature area in time, it is avoided that the food is exposed in an environment with severe temperature fluctuation for a long time, and the influence of external heat on the food is effectively reduced; due to the linkage design of the flow guide plate and the circulating pipeline, a dynamic air curtain barrier can be formed when the bin door is opened, and invasion of hot air is further effectively blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and particularly relates to a micro-freezing fresh-keeping processing equipment and a using method thereof. Background Art

[0002] With the increasing attention of consumers to the freshness and nutritional value of food, the application demand of micro-freezing equipment in the fields of food processing, biomedicine, etc. continues to grow. Micro-freezing fresh-keeping technology, also known as ice-temperature fresh-keeping, controls the food temperature in the range of -2°C to 2°C, which is between 0-4°C of refrigeration and -18°C of freezing. By inhibiting the activity of microorganisms and enzyme reactions, the fresh-keeping period is extended, and at the same time, the destruction of cell structure by ice crystals is avoided, and the taste, nutrition and color of food are retained to the greatest extent.

[0003] However, in the daily use of micro-freezing fresh-keeping equipment, when users perform operations such as taking or viewing food, the internal environment of the equipment will inevitably interact with the external environment. Since the inside of the equipment is in a low-temperature and relatively high-humidity micro-freezing environment, while the external environment usually has a higher temperature and larger humidity fluctuations, once the equipment is turned on, heat and moisture exchange will occur immediately. This heat and moisture exchange is extremely likely to break the original stable temperature and humidity balance inside the equipment, causing the internal environment temperature to rise rapidly and the humidity distribution to change significantly. In this case, local condensation of food is very likely to occur, especially for those foods that are temperature-sensitive and have moisture on the surface or are prone to adsorb water vapor.

[0004] The appearance of condensed water creates extremely favorable conditions for the growth and reproduction of microorganisms. Microorganisms grow and reproduce rapidly in a suitable moisture environment, accelerating the process of food spoilage and deterioration, thereby greatly shortening the fresh-keeping period of food. In addition, the presence of moisture will also promote various chemical reactions in food, such as oxidation reactions, resulting in the destruction of food nutrients, loss of flavor substances, and then the deterioration of the flavor and taste of food, and the color gradually loses its original freshness, seriously affecting the quality and edible value of food and reducing the acceptance of consumers. Summary of the Invention

[0005] Technical Problems to be Solved

[0006] Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a micro-freezing fresh-keeping processing equipment and a using method thereof, which can effectively solve the problem of local condensation of food caused by the interaction between the internal environment and the external environment of the existing equipment.

[0007] To achieve the above object, the present invention is realized through the following technical solutions:

[0008] The present invention provides a micro-freezing fresh-keeping processing equipment and a using method thereof, including:

[0009] A fresh-keeping bin, wherein a circulation pipeline is arranged on the inner wall of the fresh-keeping bin;

[0010] A bin door, the bin door is rotatably connected to the outer wall of the fresh-keeping bin through a main shaft fixedly connected to the side, a winding pulley is fixedly connected to the top of the main shaft, and a linkage is arranged outside the winding pulley;

[0011] A bearing member, the bearing member is located in the inner cavity of the fresh-keeping bin, the outer wall of the bearing member is connected to the side of the linkage, when the bin door drives the main shaft to move to close and open the device, the linkage drives the bearing member to slide smoothly in the inner cavity of the fresh-keeping bin, avoiding the situation that the items carried in the bearing member are locally condensed due to the interaction of cold and hot air;

[0012] Wherein, a flow guiding plate for guiding and blocking cold and hot air is fixedly connected to the side of the main shaft.

[0013] Further, grooves are arranged on the outer wall of the flow guiding plate, there is an included angle between the flow guiding plate and the bin door, when the bin door is closed, the flow guiding plate inclines towards the inner wall of the fresh-keeping bin, and when the bin door is opened, the flow guiding plate inclines towards the outer wall of the fresh-keeping bin.

[0014] Further, the linkage includes a toothed chain sleeved on the outer wall of the winding pulley, a gear is meshed with the outer wall of the toothed chain, a toothed plate is meshed with the outer wall of the gear, and the toothed plate is slidably connected to the bottom end of the inner wall of the fresh-keeping bin.

[0015] Further, the bearing member includes bearing frames arranged side by side up and down, the bearing frames arranged side by side up and down are fixedly connected through a support frame, an activity groove is opened on the side of the bearing frame, a bearing plate is embedded in the inner wall of the activity groove, a rotating shaft is rotatably connected to the middle of the bearing plate, both ends of the rotating shaft are fixed on the inner wall of the bearing frame, and a rubber layer for limiting the side of the bearing plate is movably connected inside the activity groove, and the outer wall of the bearing frame is fixedly connected to the outside of the toothed plate.

[0016] Further, an elastic member is arranged on the inner wall of the fresh-keeping bin, the position height of the elastic member is flush with the bearing frame, the elastic member includes a positioning plate fixedly connected to the inner wall of the fresh-keeping bin, the positioning plate adopts a concave-shaped design, a wedge plate is fixedly connected to the sunken position in the middle of the positioning plate, two wedge plates are symmetrically arranged with the middle line of the positioning plate as the center, a fixing rod is arranged at the protruding position on the side of the positioning plate, an elastic sheet is sleeved on the fixing rod, and the other end of the elastic sheet is attached to a contact plate.

[0017] Further, a channel is opened inside the contact plate, the size of the channel is equal to the size of the wedge plate, and there is a gap between the wedge plate and the contact plate under the initial condition.

[0018] Furthermore, a circular groove is provided on the side of the channel to facilitate the movement of one end of the fixing rod, and a magnetic plate is provided at the outer end of the fixing rod to be magnetically connected to the magnetic block at the bottom end of the rubber layer.

[0019] A method for using a micro-freezing fresh-keeping processing device comprises the following steps:

[0020] S1: The door rotates to open the device. When the door rotates, the guide plate is driven to rotate through the main shaft. The guide plate rotates toward the outside of the fresh-keeping bin to block the entry of outside air.

[0021] S2: The main shaft rotates while driving the I-shaped wheel to rotate. The rotation of the I-shaped wheel drives the linkage to move. The linkage pushes the carrier deep into the inner wall of the fresh-keeping bin, so that the items carried on the carrier are away from the bin door, reducing the impact of the interaction between cold and hot air on its condensation effect.

[0022] S3: The carrier moves toward the interior of the fresh-keeping bin until it contacts the elastic member. The elastic member elastically deforms to provide buffering protection for the carrier. In the second half of the elastic deformation, the wedge in the elastic member extends to exert an upward force on the carrier plate, causing the carrier plate to tilt downward, and the items automatically move down to a position that is easy to pick up.

[0023] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0024] The present invention is provided with a linkage part. When the warehouse door is rotated and opened, its rotating power drives the linkage part to move, and the linkage part drives the bearing part to move into the interior of the fresh-keeping warehouse, so as to transfer the food to a relatively stable low-temperature area in time, avoid the food from being exposed to an environment with drastic temperature fluctuations for a long time, effectively reduce the influence of external heat on the food, and reduce the risk of local condensation of the food.

[0025] The present invention is provided with a bearing member. After the compartment door is opened, the bearing member moves toward the inside of the equipment and contacts with the elastic member. The elastic member gradually accumulates elastic potential energy in the process of force compression. As the elastic deformation increases, the force exerted by the wedge plate in the elastic member on the bearing plate gradually increases, and the bearing plate begins to rotate around the rotating shaft. The rotation of the bearing plate breaks the fixed state of the food placement, so that cold air can flow around the food more fully, thereby enhancing the convective heat transfer effect. After the bearing plate rotates, the position and angle of the food are optimized, and the staff can take the food more easily, reducing the time waste and possible risk of items falling due to difficulty in taking, thereby improving work efficiency and operation safety.

[0026] The present invention is provided with a deflector. When the fresh-keeping chamber is closed, the deflector inclined towards the chamber door can change the flow path of the cold air. During the circulation of the cold air in the equipment, when it encounters the deflector, its flow direction changes, forming a certain turbulence effect, thereby enhancing the mixing degree of the cold air in different regions. When the fresh-keeping chamber is opened, the deflector inclined towards the outside of the chamber can block the influx of external hot air, change the flow path of the external hot air, making it difficult to directly enter the low-temperature area inside the equipment in large quantities. The blocking effect of the inclined deflector on the hot and cold air significantly reduces the temperature fluctuation inside the equipment when the chamber door is opened, which helps to maintain a stable micro-freezing fresh-keeping environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a flowchart of the usage method of the micro-freezing fresh-keeping processing equipment of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall structure in the closed state of an embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the overall structure in the opened state of an embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the folding member of an embodiment of the present invention;

[0032] Figure 5 It is a schematic diagram of the internal structure of the fresh-keeping chamber of an embodiment of the present invention;

[0033] Figure 6 It is a schematic diagram of the structural state change of the deflector of an embodiment of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the elastic member of an embodiment of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the linkage member of an embodiment of the present invention;

[0036] Figure 9 It is a schematic diagram of the split structure of the carrier rack and the carrier plate of an embodiment of the present invention.

[0037] The reference numerals in the figure respectively represent: 1, fresh-keeping bin; 2, bin door; 3, deflector; 31, groove; 4, main shaft; 41, spool; 5, carrier; 51, carrier frame; 52, carrier plate; 53, rotating shaft; 55, support frame; 56, movable groove; 57, rubber layer; 6, elastic member; 61, contact plate; 62, elastic sheet; 63, wedge plate; 65, channel; 66, positioning plate; 67, fixing rod; 68, circular groove; 7, linkage member; 71, gear; 72, rack; 73, toothed chain; 8, circulation pipeline. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] The present invention will be further described below with reference to the embodiments.

[0040] Embodiment:

[0041] Please refer to Figures 1-9 , the present invention provides a technical solution for a micro-freezing fresh-keeping processing device and its usage method: Refer to Figure 2 , Figure 3 and Figure 5, The processing equipment includes a fresh-keeping warehouse 1. A warehouse door 2 is rotatably connected to the side of the fresh-keeping warehouse 1. A circulation pipeline 8 is arranged on the inner wall of the fresh-keeping warehouse 1. The circulation pipeline 8 realizes a uniform freezing cycle in the warehouse at uniform intervals. The circulation pipeline 8 near the position of the warehouse door 2 adopts an intelligent variable flow rate design. When the warehouse door 2 is opened instantaneously, the air flow rate in the pipeline rapidly increases and can reach a relatively high rate in a short time. This high-speed air flow can quickly counteract the influx of external hot air. By enhancing the convective heat transfer method, it can effectively reduce the temperature rise amplitude caused by the opening of the warehouse door 2 and maintain the stability of the low-temperature environment inside the equipment to the greatest extent. After the warehouse door 2 is closed, the air flow rate in the circulation pipeline 8 gradually drops back to the stable flow rate during normal operation to continuously ensure the uniform circulation of cold air inside the equipment and ensure the balanced distribution of temperatures in each area, providing a stable cold environment for food preservation. Such a design that dynamically adjusts the air flow rate according to the opening and closing state of the warehouse door 2 accurately matches the air flow requirements of the equipment under different working conditions, significantly improves the ability of the micro-freezing fresh-keeping equipment to cope with environmental changes, and effectively guarantees the fresh-keeping effect of food; Although it is easy to cause cold air loss near the warehouse door 2, by enhancing the freezing effect of the circulation pipeline 8 when the door is opened, it can accurately control the air flow, quickly compensate for the temperature loss, maintain the low-temperature environment inside the equipment to a certain extent, and ensure the fresh-keeping effect of food. The good air flow organization maintained by the circulation pipeline 8 can effectively balance the humidity distribution inside the equipment, reduce the local condensation phenomenon of food caused by uneven humidity, ensure the preservation of food in a stable temperature and humidity environment, reduce the risk of microbial growth, and extend the food preservation period.

[0042] Reference Figure 3 and Figure 6 , Grooves 31 are arranged on the outer wall of the guide plate 3. There is an included angle between the guide plate 3 and the warehouse door 2. When the warehouse door 2 is closed, the guide plate 3 inclines towards the inner wall of the fresh-keeping warehouse 1. When the warehouse door 2 is opened, the guide plate 3 inclines towards the outer wall of the fresh-keeping warehouse 1. The linkage design of the guide plate 3 and the circulation pipeline 8 can form a dynamic air curtain barrier when the warehouse door 2 is opened, further effectively blocking the intrusion of hot air and maintaining the stability of the low-temperature environment inside the equipment;

[0043] The grooves 31 arranged in parallel arrays on the surface of the guide plate 3 can use the capillary effect to guide the condensed water to drain along the grooves 31, avoiding the phenomenon of water accumulation. This not only reduces the possibility of microbial growth, ensures the sanitary environment inside the equipment, but also avoids the pollution of food by condensed water, helping to extend the food preservation period;

[0044] The groove 31 on the side close to the door 2 has a larger inclination angle. Such an angle can utilize the flow trend of hot air to make it easier for condensed water to be discharged along the groove 31 under the blowing of hot air. When the door 2 is opened, hot air rushes in quickly. After contacting the inclined surface of the groove 31, it will generate a component force on the condensed water along the direction of the groove 31, accelerating the discharge process of the condensed water, and effectively reducing the accumulation of condensed water near the warehouse opening due to the impact of hot air; and the depth of the groove 31 on this side is relatively deep, which can accommodate more large amounts of condensed water generated at the moment the warehouse opening is opened. When the warehouse opening is opened, the cold and hot air are exchanged violently, and the amount of condensed water will increase significantly. The deeper groove 31 can avoid overflowing the groove 31 due to excessive water, ensuring that the condensed water can be discharged in an orderly manner along the groove 31, maintaining a dry environment inside the equipment, and reducing the risk of microbial growth; the direction of the groove 31 is consistent with the inclination direction of the guide plate 3, and forms a certain angle with the main direction of the cold air circulation inside the equipment, which not only helps to guide the discharge of condensed water, but also can enhance the mixing effect of cold air and hot air in the groove 31 area to a certain extent. When the cold air flows through the groove 31 , due to the guidance of the groove 31 , it will produce more complex convection movement with the hot air, thereby strengthening the cooling effect on the hot air and further improving the regulating ability of the guide plate 3 on the exchange of cold and hot air.

[0045] The inclination angle of the groove 31 on the side away from the door 2 is relatively small, and the influence of hot air in this area is relatively weak. The smaller angle can meet the demand for the natural discharge of condensed water under the capillary action, and at the same time will not cause significant interference to the relatively stable cold air circulation inside the equipment. When the cold air flows inside the equipment, the groove 31 with a smaller angle can make the flow state of the cold air change less when passing through, ensuring the stability of the overall airflow inside the equipment, which is conducive to maintaining the uniform distribution of the temperature field inside the equipment. The depth of the groove 31 on this side is relatively shallow. Since the amount of condensed water in the area away from the warehouse is relatively small, the shallower groove 31 can effectively use the capillary effect to guide the discharge of condensed water and reduce the impact on the structural strength of the guide plate 3. The shallower groove 31 is relatively easy to process, and it can also reduce the increase in air flow resistance caused by the groove 31 being too deep, ensuring the smooth circulation of cold air inside the equipment and improving the cooling efficiency.

[0046] When the fresh-keeping chamber 1 is closed, the deflector 3 with an inward inclination at the position of the chamber door 2 can change the flow path of the cold air. During the process of the cold air circulating and flowing inside the device, when it encounters the deflector 3, its flow direction changes, forming a certain turbulence effect. According to Bernoulli's principle, this turbulence increases the non-uniformity of the air flow velocity, thereby enhancing the mixing degree between the cold air in different regions; there is a specific angle between the deflector 3 and the circulating air flow, which can drive the cold air at the bottom of the device to participate in the circulation by entrainment, promoting the overall circulation and renewal of the air inside the device, helping to maintain the uniformity of the temperature inside the device, reducing the temperature stratification phenomenon, enabling foods at different positions to be in a relatively consistent low-temperature environment, and being beneficial to extending the fresh-keeping period of the foods; the inwardly inclined deflector 3 makes the cold air form a more complex flow boundary layer when flowing through, and according to the boundary layer theory, the complex boundary layer structure can increase the heat transfer coefficient between the fluid and the solid surface, improving the convective heat transfer efficiency between the cold air and the food surface, which means that the food can release heat more quickly and uniformly, reaching the temperature required for micro-freezing fresh-keeping, and at the same time also helps to maintain the temperature stability of the food during the fresh-keeping process, reducing the adverse effects on the food quality caused by temperature fluctuations.

[0047] When the chamber door 2 is opened, the deflector 3 rotates outward towards the outside of the chamber door 2. The deflector 3 is fixedly connected to the side of the main shaft 4, and the main shaft 4 is fixedly connected to the chamber door 2. The deflector 3 can stably change the angle while the chamber door 2 moves. During the process of the deflector 3 rotating outward towards the outside of the chamber door 2, the inclined deflector 3 quickly occupies part of the space of the chamber door 2, using its inclined surface to block the outflow of the internal cold air flow. According to the momentum theorem in fluid mechanics, after the cold air flow collides with the surface of the deflector 3, its flow direction changes, and part of the air flow is reflected back into the device, thus reducing the loss amount of the cold air flow. At the same time, for the influx of external hot air, the deflector 3 also plays a blocking role, changing the flow path of the external hot air, making it difficult to directly enter the low-temperature area inside the device in large quantities. The blocking effect of the inclined deflector 3 on the cold and hot air flows significantly reduces the temperature fluctuation inside the device when the chamber door 2 is opened, helping to maintain a stable micro-freezing fresh-keeping environment. The stable low-temperature environment can better inhibit the growth of microorganisms and the chemical reactions of the food itself, thereby extending the fresh-keeping period of the food and improving the fresh-keeping quality of the food.

[0048] Reference Figure 4 、 Figure 5 、 Figure 8The bearing member 5 is located in the inner cavity of the fresh-keeping bin 1, and the outer wall of the bearing member 5 is connected to the side of the linkage member 7. The linkage member 7 includes a toothed chain 73 sleeved on the outer wall of the I-shaped wheel 41. The outer wall of the toothed chain 73 is meshedly connected with a gear 71, and the outer wall of the gear 71 is meshedly connected with a toothed plate 72. The toothed plate 72 is slidably connected to the bottom end of the inner wall of the fresh-keeping bin 1, and the outer wall of the bearing frame 51 is fixedly connected to the outer side of the toothed plate 72;

[0049] The main shaft 4 rotates and drives the I-shaped wheel 41 to rotate. The rotation of the I-shaped wheel 41 drives the toothed chain 73 sleeved on the outside thereof to rotate. The rotation of the toothed chain 73 drives the gear 71 meshing therewith to rotate. The rotation of the gear 71 drives the toothed plate 72 meshing therewith to move to the side away from the warehouse door 2.

[0050] The supporting member 5 automatically extends inward as the door 2 opens. The temperature of the area near the door 2 changes dramatically when the door is opened. The structure can transfer the food to a relatively stable low-temperature area in time to avoid long-term exposure of the food to an environment with drastic temperature fluctuations, effectively reduce the impact of external heat on the food, and reduce the risk of local condensation of the food; effectively reduce the internal moisture migration and ice crystal formation caused by large temperature fluctuations in the food. For some temperature-sensitive foods, such as fresh meat, high-end seafood, etc., it can maintain the integrity of the cell structure to the greatest extent, prevent quality deterioration due to temperature changes, and significantly improve the food preservation effect and shelf life.

[0051] refer to Figure 3 , Figure 4 and Figure 9 The bearing member 5 includes a bearing frame 51 placed side by side up and down, and the bearing frames 51 placed side by side up and down are fixedly connected through a support frame 55. A movable groove 56 is opened on the side of the bearing frame 51, and a bearing plate 52 is embedded in the inner wall of the movable groove 56. A rotating shaft 53 is rotatably connected to the middle of the bearing plate 52, and both ends of the rotating shaft 53 are fixed to the inner wall of the bearing frame 51. A rubber layer 57 for limiting the side of the bearing plate 52 is movably connected inside the movable groove 56, and the outer wall of the bearing frame 51 is fixedly connected to the outer side of the tooth plate 72.

[0052] The carrier 5 in the present invention adopts a two-layer suspended structure design that does not contact the bottom of the equipment. This mechanism increases the contact area between the food and the frozen air. According to the principle of heat transfer, a larger contact area means a more efficient heat exchange efficiency. During the micro-freezing preservation process, the frozen air can surround the food more fully, speeding up the speed of heat transfer from the food to the air, thereby achieving a faster and more uniform cooling effect. For various types of food, a uniform low-temperature environment helps to maintain its overall quality consistency, reduce the situation of over-freezing or insufficient preservation of some foods due to local temperature differences, and comprehensively improve the preservation performance of the equipment;

[0053] The two-layer suspended structure creates good channel conditions for the internal air circulation of the device. The suspended design avoids the obstruction of the air flow by the bottom dead corners, enabling the cold air to form a smooth up-and-down circulation path inside the device. From the perspective of fluid mechanics, this circulation method helps to improve the air flow velocity and uniformity, enhancing the convective heat transfer effect; at the same time, the good air circulation can timely remove the water vapor generated by the evaporation of moisture on the food surface, further maintaining the internal humidity stability of the device and reducing the problem of local condensation of food caused by the accumulation of water vapor; in addition, this structure provides sufficient space for the angular deformation of the bearing plate 52, ensuring the normal realization of the function of the deformable structure, enabling the various parts of the device to work together and jointly improving the fresh-keeping effect and space utilization efficiency of the device.

[0054] The position of the two-layer suspended bearing member 5 in the fresh-keeping bin 1 has an important impact on the food fresh-keeping effect. The guide plate 3 of the inwardly inclined door 2 can guide the cold air to evenly flow through each layer of the double-layer bearing member 5. Due to the inclined angle design of the guide plate 3, the cold air does not concentrate on impacting a certain layer of the bearing member 5, but is distributed between the upper and lower layers of the double-layer bearing member 5 with a relatively uniform flow velocity and flow rate. This ensures that the food placed on the bearing member 5 can fully contact the cold air, avoiding the situation where the fresh-keeping effect of some foods is poor due to uneven air flow around the bearing member 5, and enabling foods in different positions to obtain good and consistent fresh-keeping conditions; in the micro-freezing environment, the uneven temperature is likely to cause condensation on the surface of the bearing member 5. The guide plate 3 optimizes the flow path of the cold air, making the temperature distribution around the bearing member 5 more uniform and reducing the risk of excessive local temperature. From the thermodynamic principle, the improvement of temperature uniformity helps to reduce the temperature difference between the surface of the bearing member 5 and the surrounding cold air, thereby reducing the water vapor condensation caused by the temperature difference. This not only keeps the bearing member 5 dry and extends its service life, but also avoids the pollution of food by condensed water, further ensuring the fresh-keeping quality of food.

[0055] Reference Figure 5 、 Figure 7 and Figure 9, an elastic member 6 is provided on the inner wall of the fresh-keeping bin 1. The position height of the elastic member 6 is flush with the carrier 51. The elastic member 6 includes a positioning plate 66 fixedly connected to the inner wall of the fresh-keeping bin 1. The positioning plate 66 is designed in a concave shape. A wedge plate 63 is fixedly connected to the recessed position in the middle of the positioning plate 66. There are two wedge plates 63 symmetrically arranged with the center line of the positioning plate 66 as the center. Fixed rods 67 are provided at the protruding positions on the sides of the positioning plate 66. Elastic sheets 62 are sleeved outside the fixed rods 67. The other end of the elastic sheet 62 is attached to a contact plate 61. A groove 65 is opened inside the contact plate 61. The size of the groove 65 is equal to the size of the wedge plate 63. And there is a gap between the wedge plate 63 and the contact plate 61 under the initial condition. A circular groove 68 for facilitating the movement of one end of the fixed rod 67 is provided on the side of the groove 65. A magnetic plate for magnetically connecting the magnetic block at the bottom end of the rubber layer 57 is provided at the outer end of the fixed rod 67.

[0056] The carrier 51 first contacts the contact plate 61. The contact plate 61 and the flexible layer provided on its surface provide all-round protection for the side of the carrier 51. The contact plate 61 exerts a force on the elastic sheet 62 under the action of the carrier 51. The elastic sheet 62 undergoes elastic deformation to buffer the carrier 51. At the same time, the elastic deformation of the elastic sheet 62 reduces the distance between the port of the fixed rod 67 and the contact plate 61. The fixed rod 67 is inserted into the circular groove 68 and penetrates through the circular groove 68 along with the movement of the contact plate 61. One end of the fixed rod 67 after penetrating through the circular groove 68 enters the magnetic field of the magnetic member at the bottom end of the rubber layer 57. The rubber layer 57 relatively arranged on the inner wall of the movable groove 56 moves in one direction under the action of the magnetic force, increasing the movable space of the carrier plate 52 inside the movable groove 56. While the fixed rod 67 penetrates through the circular groove 68, the wedge plate 63 also inserts into the groove 65 provided inside the contact plate 61. The lower wedge plate 63 inserts into the inclined surface on the side of the elastic sheet 62. As the wedge plate 63 moves, an upward force is exerted on the side of the carrier plate 52, enabling the carrier plate 52 to rotate downward. The upper wedge plate 63 blocks the upper part of the rotated carrier plate 52 to prevent it from rotating excessively;

[0057] When the fresh-keeping bin 1 is in a closed state, there is a certain space reserved between the carrier 51 and the inside of the device. An inclined guide plate 3 is provided on one side of the carrier 51, and an elastic member 6 is assembled on the other side. When the bin door 2 is opened, the carrier 51 starts to move towards the inside of the device. As the carrier 51 moves, it gradually contacts the elastic member 6. During the contact process, the elastic member 6 undergoes elastic deformation according to Hooke's law, providing a buffering effect for the movement of the carrier 51, effectively slowing down the movement speed of the carrier 51 and avoiding collision damage caused by too fast movement; the buffering effect of the elastic member 6 effectively protects the carrier 51 and the internal structure of the device, reduces mechanical wear and damage caused by frequent opening and closing of the bin door 2, extends the service life of the device, and reduces the maintenance cost of the device.

[0058] When the carrier 51 continuously contacts the elastic member 6 inside the device and compresses the elastic member 6 to a certain extent, under the combined action of the acting force of the elastic member 6 and its own gravity, the carrier 51 starts to rotate by a certain angle around the rotating shaft 53 from its original horizontal state and finally reaches a new stable inclined state. At this time, the items placed on the carrier 51, due to the inclination of the carrier plate 52, move downward along the surface of the carrier 51 under the action of gravity, and thus move to a position more convenient for the staff to pick up.

[0059] By inclining the carrier plate 52, the items automatically move downward to a position closer to the door 2 of the bin under the action of gravity, reducing the distance that the staff needs to reach into the device when picking up the items, lowering the operation difficulty, improving the convenience and efficiency of the operation, and conforming to the operation habits and needs of users during actual use; the inclined design of the carrier plate 52 enables the items to automatically move downward to a convenient position for picking up, greatly improving the convenience for the staff to pick up the items. This not only saves operation time but also reduces the risks such as item dropping that may be caused by inconvenient operation, improving the work efficiency and operation safety.

[0060] Please refer to Figure 1 , on the other hand, the present invention provides a method for using a micro-freezing fresh-keeping processing device, including the following steps:

[0061] S1: The door 2 rotates to open the device. While the door 2 rotates, the diversion plate 3 is driven to rotate by the main shaft 4, and the diversion plate 3 rotates outward to the outside of the fresh-keeping bin 1 to block the entry of external air.

[0062] S2: While the main shaft 4 rotates, it drives the spool 41 to rotate. The rotation of the spool 41 drives the linkage member 7 to move. The movement of the linkage member 7 pushes the carrier member 5 deep into the inner wall of the fresh-keeping bin 1, so that the items carried on the carrier member 5 are far away from the door 2, reducing the influence of the interaction of cold and hot air on its condensation effect.

[0063] S3: The carrier member 5 moves inward into the fresh-keeping bin 1 until it contacts the elastic member 6. While the elastic member 6 elastically deforms to buffer and protect the carrier member 5, in the second half of the elastic deformation, the wedge plate 63 in the elastic member 6 extends to apply an upward acting force on the carrier plate 52, causing the carrier plate 52 to tilt downward, and the items automatically move downward to a convenient position for picking up.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A micro-freezing and fresh-keeping processing equipment, characterized in that: include: A fresh-keeping bin, the inner wall of which is provided with a circulation pipeline; The door is rotatably connected to the outer wall of the fresh-keeping bin through a main shaft fixedly connected to the side, an I-shaped wheel is fixedly connected to the top of the main shaft, and a linkage member is arranged outside the I-shaped wheel; The bearing member is located in the inner cavity of the fresh-keeping bin, and the outer wall of the bearing member is connected to the side of the linkage member. When the bin door drives the main shaft to move to close and open the device, the linkage member drives the bearing member to slide smoothly in the inner cavity of the fresh-keeping bin, so as to avoid local condensation of the items carried in the bearing member due to the interaction of cold and hot air; Wherein, a guide plate for guiding and blocking cold and hot air is fixedly connected to the side of the main shaft.

2. A micro-freezing and fresh-keeping processing equipment according to claim 1, characterized in that: The outer wall of the guide plate is provided with a groove, and there is an angle between the guide plate and the warehouse door. When the warehouse door is closed, the guide plate is inclined toward the inner wall of the fresh-keeping warehouse, and when the warehouse door is opened, the guide plate is inclined toward the outer wall of the fresh-keeping warehouse.

3. The micro-freezing and fresh-keeping processing equipment according to claim 1, characterized in that: The linkage member comprises a toothed chain sleeved on the outer wall of the I-shaped wheel, the outer wall of the toothed chain is meshedly connected with a gear, the outer wall of the gear is meshedly connected with a toothed plate, and the toothed plate is slidably connected to the bottom end of the inner wall of the fresh-keeping bin.

4. A micro-freezing and fresh-keeping processing equipment according to claim 3, characterized in that: The bearing member includes bearing frames placed side by side up and down, the bearing frames placed side by side up and down are fixedly connected by a supporting frame, a movable groove is opened on the side of the bearing frame, a bearing plate is embedded in the inner wall of the movable groove, a rotating shaft is rotatably connected to the middle of the bearing plate, both ends of the rotating shaft are fixed to the inner wall of the bearing frame, a rubber layer for limiting the side of the bearing plate is movably connected inside the movable groove, and the outer wall of the bearing frame is fixedly connected to the outer side of the tooth plate.

5. A micro-freezing and fresh-keeping processing equipment according to claim 4, characterized in that: The inner wall of the fresh-keeping bin is provided with an elastic member, the height of which is flush with the supporting frame, the elastic member includes a positioning plate fixedly connected to the inner wall of the fresh-keeping bin, the positioning plate adopts a concave design, a wedge plate is fixedly connected to the recessed position in the middle of the positioning plate, two wedge plates are symmetrically arranged around the center line of the positioning plate, a fixing rod is provided at the protruding position on the side of the positioning plate, an elastic sheet is sleeved on the outside of the fixing rod, and a contact plate is attached to the other end of the elastic sheet.

6. The micro-freezing and fresh-keeping processing equipment according to claim 5, characterized in that: A groove is provided inside the contact plate, the size of the groove is equal to the size of the wedge plate, and there is a gap between the wedge plate and the contact plate under initial conditions.

7. A micro-freezing and fresh-keeping processing equipment according to claim 6, characterized in that: The side of the channel is provided with a circular groove for facilitating the movement of one end of the fixing rod, and the outer end of the fixing rod is provided with a magnetic plate magnetically connected to the magnetic block at the bottom end of the rubber layer.

8. A method for using the micro-freezing fresh-keeping processing equipment according to any one of claims 1 to 7, characterized in that: The steps include: S1: The door rotates to open the device. When the door rotates, the guide plate is driven to rotate through the main shaft. The guide plate rotates toward the outside of the fresh-keeping bin to block the entry of outside air. S2: The main shaft rotates while driving the I-shaped wheel to rotate. The rotation of the I-shaped wheel drives the linkage to move. The linkage pushes the carrier deep into the inner wall of the fresh-keeping bin, so that the items carried on the carrier are away from the bin door, reducing the impact of the interaction between cold and hot air on its condensation effect. S3: The carrier moves toward the interior of the fresh-keeping bin until it contacts the elastic member. The elastic member elastically deforms to provide buffering protection for the carrier. In the second half of the elastic deformation, the wedge in the elastic member extends to exert an upward force on the carrier plate, causing the carrier plate to tilt downward, and the items automatically move down to a position that is easy to pick up.

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