A frozen food anti-oxidation thawing cabinet

Abstract

The application discloses a frozen food anti-oxidation thawing cabinet and relates to the technical field of thawing cabinets. The thawing cabinet comprises a thawing cabinet body, a loading base is fixedly installed at the lower side of the thawing cabinet body, an evaporator and an air pump are arranged in the loading base, fixed mesh plates are fixedly and arrayed installed in the thawing cabinet body, a pressing frame is movably arranged at the upper side of each fixed mesh plate, a center partition plate is fixedly installed in the thawing cabinet body, and the pressing frame is movably installed on the center partition plate. The thawing cabinet body can be divided into multiple independent areas through the combination with the plastic film. The shape of each area can be adapted to the shape of food. The independent areas can be selectively evacuated, so that the areas form a structure similar to a vacuum package. The food is not oxidized and dried in the thawing process, the thawing of the food is more stable, and the quality of the food after thawing is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thawing cabinets, in particular to a frozen food material anti-oxidation thawing cabinet. BACKGROUND

[0002] Thawing is a key link before frozen food processing and cooking, and the process quality directly determines the final flavor, nutrition and commercial value of the food material. At present, the widely used air convection type thawing cabinet mainly realizes thawing by circulating low-temperature air driven by a fan, but this technical path still has defects.

[0003] Firstly, it is insufficient in terms of anti-oxidation. The internal environment of the conventional thawing cabinet is a normal pressure air environment, rich in oxygen. During the thawing process of several hours, the surface fat and myoglobin of the food material are in continuous contact with oxygen, which easily causes oxidation reaction, resulting in rancidity of fatty acids, off-flavor of red meat, discoloration and other adverse changes.

[0004] Secondly, it is relatively extensive in terms of temperature controllability. The existing equipment mostly adopts the strategy of constant temperature control of the whole space in the cabinet, which is difficult to accurately control according to the type, size and thawing stage of the food material. The lack of heat driving force at the initial stage of thawing leads to slow speed, and different sizes and types of food are thawed at the same temperature, which not only has low thawing efficiency, but also easily causes odor mixing.

[0005] Finally, there is an inherent contradiction in preventing air drying. The forced air flow designed to enhance heat exchange continuously removes the moisture on the surface of the food material, resulting in water loss and dry consumption, causing surface hardening and taste change. Although some high-end equipment alleviates this problem through a humidification system, the humidity control accuracy is limited in a low-temperature environment, and the effect is not ideal. SUMMARY

[0006] The purpose of the present application is to provide a frozen food material anti-oxidation thawing cabinet to solve the problems of food oxidation during long-time thawing and low efficiency of the whole cabinet body temperature control method in the background art.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a frozen food material anti-oxidation thawing cabinet, comprising a thawing cabinet body, a loading base is fixedly installed on the lower side of the thawing cabinet body, an evaporator and an air pump are arranged in the loading base, fixed mesh plates are fixedly arranged in the thawing cabinet body, a pressure frame is movably arranged on the upper side of each fixed mesh plate, a center partition plate is fixedly arranged in the thawing cabinet body, and the pressure frame is movably arranged on the center partition plate.

[0008] The pressure edge assembly comprises movable blocks, a bearing frame, a first air pipe and a second air pipe, the movable blocks are movably installed on the center partition plate, the pressure edge frame is fixedly installed on the movable blocks, the bearing frame is fixedly installed on the upper side of the fixed net plate, the shape of the bearing frame is matched with the shape of the pressure edge frame, the first air pipe and the second air pipe are movably installed on the bearing frame;

[0009] The air extraction assembly comprises installation boxes, gas storage grooves and a first piston, the installation boxes are fixedly installed on the front side of the fixed net plate, the gas storage grooves are arranged in the installation boxes, the first piston is movably arranged in the gas storage groove, and the gas storage groove is communicated with the first air pipe;

[0010] The gas injection mechanism comprises a gas injection main pipe and gas injection branch pipes, the gas injection main pipe is fixedly installed on the front side of the center partition plate, the gas injection main pipe is connected with the exhaust port of the air pump in the loading base, the gas injection branch pipes are fixedly installed on the gas injection main pipe in an array mode, and the gas injection branch pipes are connected with the first piston.

[0011] Preferably, the pressure edge assembly further comprises telescopic motors, first movable grooves and connecting rods, the telescopic motors are fixedly installed on the upper side of the thawing cabinet body, the first movable grooves are arranged on the center partition plate in an array mode, the connecting rods are fixedly installed on the output shafts of the telescopic motors, and the movable blocks are fixedly installed on the connecting rods and movably arranged in the first movable grooves.

[0012] Preferably, the pressure edge assembly further comprises sealing grooves, sealing blocks, loading grooves and sealing rubber pads, the sealing blocks are fixedly installed on the lower side of the pressure edge frame, the sealing grooves are arranged on the upper side of the bearing frame, the shape and position of the sealing grooves are matched with the shape and position of the sealing blocks, two groups of loading grooves are arranged at the front ends of the bearing frame and the pressure edge frame, the sealing rubber pads are fixedly installed in the loading grooves, and the first air pipe and the second air pipe are inserted into the loading grooves.

[0013] Preferably, the pressure edge assembly further comprises second movable grooves, guide rods, sliding blocks and guide holes, the second movable grooves are arranged on the left and right sides of the front end of the bearing frame in two groups, the guide rods are fixedly installed in the second movable grooves, the sliding blocks are fixedly installed on the lower side of the first air pipe and the second air pipe, the sliding blocks are movably inserted into the second movable grooves, the guide holes are arranged on the sliding blocks, and the guide rods are inserted into the guide holes.

[0014] Preferably, the air extraction assembly further comprises a first flower section pipe, a columnar valve, an L-shaped air passage, a rotating handle and a corrugated pipe, the end of the first air pipe is fixedly provided with the first flower section pipe, the first air pipe is rotatably provided with the columnar valve, the columnar valve is provided with the L-shaped air passage, the upper side of the columnar valve is fixedly provided with the rotating handle, the rotating handle is rotatably arranged on the first air pipe, the lower end of the first air pipe is fixedly provided with the corrugated pipe, one end of the corrugated pipe is fixedly arranged on the mounting box, and the air storage groove is communicated with the corrugated pipe.

[0015] Preferably, the air extraction assembly further comprises a second flower section pipe, a second piston, a first return spring, a first air passage, a limiting disc and an air outlet groove, the second air pipe is movably provided with the second piston, the second piston is sleeved with the first return spring, the first return spring is in abutment with the inner side of the second air pipe, the second piston is provided with the first air passage, the end of the second piston is fixedly provided with the limiting disc, and the end of the second piston is provided with the air outlet groove.

[0016] Preferably, the air injection mechanism further comprises an air inlet pipe, a threaded connector, a threaded ring and a second air passage, the air inlet of the air pump in the loading base is fixedly provided with the air inlet pipe, the air inlet pipe is fixedly arranged on the center partition plate, the air inlet pipe is provided with an activated carbon adsorption layer, the end of the air injection branch pipe is rotatably provided with the threaded connector, the end of the first piston is fixedly provided with the threaded ring, the first piston is provided with the second air passage, and the threaded connector is threadedly arranged on the threaded ring.

[0017] Preferably, the air injection mechanism further comprises a first fixed block, an abutting column, an arc-shaped block, a cross-shaped air closing block, a second fixed block, a mounting cylinder, a movable rod and a second return spring, the end of the air storage groove is fixedly provided with the first fixed block, the first fixed block is fixedly provided with the abutting column, four groups of arc-shaped blocks are fixedly arranged in the second air passage, the abutting column is inserted between the four groups of arc-shaped blocks, the cross-shaped air closing block is movably arranged in the second air passage, the second air passage is fixedly provided with the second fixed block, the second fixed block is fixedly provided with the mounting cylinder, the mounting cylinder is movably inserted with the movable rod, the mounting cylinder is provided with the second return spring, the movable rod and the second return spring are in abutment, the cross-shaped air closing block is fixedly connected with the movable rod, and the shape of the cross-shaped air closing block is matched with the shape of the four groups of arc-shaped blocks.

[0018] Preferably, the air injection mechanism further comprises a limiting ring, a through groove and a limiting block, the end of the first piston is rotatably provided with the limiting ring, the limiting ring is provided with the through groove, the limiting block is fixedly arranged on the bearing frame, and the shape of the limiting block is matched with the through groove.

[0019] Preferably, the gas injection mechanism further comprises a mounting ring, a heating ring and an electric wire, the mounting ring is fixedly installed on the front side of the center partition plate, the heating ring is fixedly installed in the mounting ring in an array, the heating ring is sleeved on the gas injection branch pipe, and the electric wire is fixedly installed on the mounting ring.

[0020] Compared with the prior art, the application has the following beneficial effects: 1. The thawing cabinet body can be divided into multiple independent areas by the combination with the plastic film, the shape of each area can be adapted to the shape of food, and the independent areas can be selected to be evacuated, so that the area forms a structure similar to vacuum packaging, so that the food has no possibility of oxidation and air drying during thawing, the thawing of the food is more stable, and the quality after thawing is higher;

[0021] 2. The independent area formed by the plastic film can also be ventilated, and the airflow temperature during ventilation can be controlled to form multiple independent temperature zones, which is suitable for thawing of food of different types and sizes, so that the overall thawing efficiency of the equipment is higher, and since each temperature zone is independent, the food in each area will not be intermixed, thereby increasing the functionality of the equipment during use. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The overall structure schematic diagram provided for the embodiment of the application;

[0023] Figure 2 The internal structure schematic diagram of the thawing cabinet body provided for the embodiment of the application;

[0024] Figure 3 The internal structure schematic diagram of the thawing cabinet body provided for the embodiment of the application;

[0025] Figure 4 The structure schematic diagram of the fixed mesh plate and the edge frame provided for the embodiment of the application;

[0026] Figure 5 The structure schematic diagram of the fixed mesh plate provided for the embodiment of the application;

[0027] Figure 6 The structure schematic diagram of the second air pipe provided for the embodiment of the application;

[0028] Figure 7 The structure schematic diagram of the first air pipe provided for the embodiment of the application;

[0029] Figure 8 The structure schematic diagram of the mounting box provided for the embodiment of the application;

[0030] Figure 9 The structure schematic diagram of the gas injection branch pipe provided for the embodiment of the application;

[0031] Figure 10 A partial enlarged view of A in Figure 5 ;

[0032] Figure 11 A partial enlarged view of B in Figure 8 .

[0033] In the figure: 1, thawing cabinet body; 2, loading base; 3, fixed net plate; 4, edge pressing frame; 5, center partition plate; 6, edge pressing assembly; 601, telescopic motor; 602, first movable slot; 603, connecting rod; 604, movable block; 605, bearing frame; 606, sealing slot; 607, sealing block; 608, loading slot; 609, sealing rubber pad; 610, first air pipe; 611, second air pipe; 612, second movable slot; 613, guide rod; 614, sliding block; 615, guide hole; 7, air extraction assembly; 701, first flower section pipe; 702, columnar valve; 703, L-shaped air vent slot; 704, rotating handle; 705, corrugated pipe; 706, mounting box; 707, gas storage slot; 708, first piston; 709, second flower section pipe; 710, second piston; 711, first return spring; 712, first air vent slot; 713, limiting disc; 714, air outlet slot; 8, gas injection mechanism; 801, gas injection main pipe; 802, air inlet pipe; 803, gas injection branch pipe; 804, threaded connecting head; 805, threaded ring; 806, second air vent slot; 807, first fixed block; 808, abutting column; 809, arc-shaped block; 810, cross-shaped air blocking block; 811, second fixed block; 812, mounting cylinder; 813, movable rod; 814, second return spring; 815, limiting ring; 816, through slot; 817, limiting block; 818, mounting ring; 819, heating ring; 820, electric wire. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0035] Please refer to Figures 1-11The application provides a technical scheme: a frozen food anti-oxidation thawing cabinet, which comprises a thawing cabinet body 1, a loading base 2 is fixedly installed on the lower side of the thawing cabinet body 1, an evaporator and an air pump are arranged in the loading base 2, a fixed mesh plate 3 is fixedly and arrayed installed in the thawing cabinet body 1, a pressing frame 4 is movably arranged on the upper side of the fixed mesh plate 3, a center partition plate 5 is fixedly installed in the thawing cabinet body 1, and the pressing frame 4 is movably installed on the center partition plate 5;

[0036] A pressing assembly 6, the pressing assembly 6 comprises a movable block 604, a bearing frame 605, a first air pipe 610 and a second air pipe 611, the movable block 604 is movably installed on the center partition plate 5, the pressing frame 4 is fixedly installed on the movable block 604, the bearing frame 605 is fixedly installed on the upper side of the fixed mesh plate 3, the shape of the bearing frame 605 is matched with the shape of the pressing frame 4, and the first air pipe 610 and the second air pipe 611 are movably installed on the bearing frame 605;

[0037] An air extraction assembly 7, the air extraction assembly 7 comprises a mounting box 706, a gas storage groove 707 and a first piston 708, the mounting box 706 is fixedly installed on the front side of the fixed mesh plate 3, the gas storage groove 707 is arranged in the mounting box 706, and the first piston 708 is movably arranged in the gas storage groove 707; and the gas storage groove 707 and the first air pipe 610 are communicated.

[0038] An air injection mechanism 8, the air injection mechanism 8 comprises an air injection main pipe 801 and air injection branch pipes 803, the air injection main pipe 801 is fixedly installed on the front side of the center partition plate 5, the air injection main pipe 801 is connected with the exhaust port of the air pump in the loading base 2, the air injection branch pipes 803 are fixedly and arrayed installed on the air injection main pipe 801, and the air injection branch pipes 803 are connected with the first piston 708.

[0039] The equipment is provided with two groups of plastic films between the fixed mesh plate 3 and the pressing frame 4, the plastic films are composite materials commonly used for vacuum packaging, the shape of the plastic films is matched with the shape of the fixed mesh plate 3 and the pressing frame 4, the area of the plastic films is larger, and the plastic films are used for wrapping food, when working, a layer of plastic film is placed on the fixed mesh plate 3, the edge of the plastic film is arranged on the edge of the fixed mesh plate 3, then food is placed on the plastic film, then another layer of plastic film is placed on the food, the plastic film is as close to the food as possible, and the edge of the plastic film is arranged on the upper side of the fixed mesh plate 3, the pressing frame 4 is moved downward to press the plastic film, so that the edge of the plastic film is sealed, then slow thawing is selected through air extraction, or dynamic temperature control thawing through air injection.

[0040] Further, the edge pressing assembly 6 further comprises a telescopic motor 601, a first movable slot 602 and a connecting rod 603, the telescopic motor 601 is fixedly installed on the upper side of the thawing cabinet cabinet body 1, the first movable slot 602 is arrayed and opened on the center partition plate 5, the connecting rod 603 is fixedly installed on the output shaft of the telescopic motor 601, and the movable block 604 is fixedly installed on the connecting rod 603 and moves in the first movable slot 602. The structure is the movable structure of the edge pressing frame 4, which is synchronously movable and pressed by the control of the telescopic motor 601, and the movement process of the edge pressing frame 4 does not need to be greater than the height of the food, as long as the edge of the plastic film can be inserted between the fixed mesh plate 3 and the edge pressing frame 4. If it is necessary to thaw some food that is not easy to be dried and oxidized, plastic film does not need to be used, and the food can be directly placed on the fixed mesh plate 3 for regular thawing. Compared with the conventional thawing cabinet, in terms of structure, the device only adds the movable edge pressing frame 4 and the air pump, and the device also has the basic functions of the conventional thawing cabinet, and the conventional functions such as humidification and fan temperature will not adversely affect the core function of the device;

[0041] Further, the edge pressing assembly 6 further comprises a sealing groove 606, a sealing block 607, a loading groove 608 and a sealing rubber pad 609, the sealing block 607 is fixedly installed on the lower side of the edge pressing frame 4, the sealing groove 606 is opened on the upper side of the bearing frame 605, the shape and position of the sealing groove 606 are matched with the shape and position of the sealing block 607, two groups of opposite loading grooves 608 are opened at the front ends of the bearing frame 605 and the edge pressing frame 4, the sealing rubber pad 609 is fixedly installed in the loading groove 608, and the first air pipe 610 and the second air pipe 611 are inserted in the loading groove 608. The structure is the sealing structure of the edge pressing frame 4, the edge of the plastic film is pressed in the sealing groove 606, which can effectively form a seal to provide conditions for subsequent air extraction and air injection. Under the action of the structure, a space for wrapping food is formed between the two groups of films, the edge of the space is closed, the first air pipe 610 and the second air pipe 611 are inserted between the two groups of films, and the first air pipe 610 and the second air pipe 611 can be used to provide conditions for the formation of a vacuum area and an independent temperature area;

[0042] Further, the edge pressing assembly 6 further comprises a second movable slot 612, a guide rod 613, a sliding block 614 and a guide hole 615. Two groups of second movable slots 612 are arranged on the left and right sides of the front end of the bearing frame 605. The guide rods 613 are fixedly installed in the second movable slots 612. Two groups of sliding blocks 614 are fixedly installed on the lower sides of the first air pipe 610 and the second air pipe 611. The sliding blocks 614 are movably inserted into the second movable slots 612. The guide holes 615 are arranged on the sliding blocks 614, and the guide rods 613 are inserted into the guide holes 615. The structure is the movable structure of the first air pipe 610 and the second air pipe 611, so that the first air pipe 610 and the second air pipe 611 can move up and down within a certain range without being separated from the bearing frame 605. The purpose is to place the first layer of plastic film on the lower side of the first air pipe 610 and the second air pipe 611, so that the first air pipe 610 and the second air pipe 611 can be inserted between the two groups of plastic films and sealed, providing conditions for subsequent air extraction and ventilation.

[0043] Further, the air extraction assembly 7 further comprises a first flower section pipe 701, a cylindrical valve 702, an L-shaped ventilation slot 703, a rotating handle 704 and a corrugated pipe 705. The first flower section pipe 701 is fixedly installed on the end of the first air pipe 610. The cylindrical valve 702 is rotatably installed in the first air pipe 610. The L-shaped ventilation slot 703 is arranged in the cylindrical valve 702. The rotating handle 704 is fixedly installed on the upper side of the cylindrical valve 702 and is rotatably installed on the first air pipe 610. The corrugated pipe 705 is fixedly installed on the lower end of the first air pipe 610. One end of the corrugated pipe 705 is fixedly installed on the installation box 706, and the gas storage groove 707 is in communication with the corrugated pipe 705. The structure is a closed structure of the first air pipe 610. After air extraction is performed, the first air pipe 610 can be closed by rotating the cylindrical valve 702, so that negative pressure is formed in the two groups of plastic films, thereby reducing the oxygen content between the films. In combination with the structure on the first piston 708, the air between the films can be continuously extracted, increasing the functionality of the device during use. The corrugated pipe 705 can adapt to the lifting of the first air pipe 610, increasing the stability of the device during use.

[0044] Further, the air extraction assembly 7 further comprises a second flower section pipe 709, a second piston 710, a first return spring 711, a first air passage 712, a limiting disc 713 and an air outlet groove 714. The second piston 710 is movably arranged in the second air pipe 611. The first return spring 711 is sleeved on the second piston 710 and abuts against the inner side of the second air pipe 611. The first air passage 712 is arranged in the second piston 710. The limiting disc 713 is fixedly arranged on the end of the second piston 710. The air outlet groove 714 is arranged at the end of the second piston 710. The structure is an air exhaust structure between the films. When the air injection function is used, the structure can exhaust air. The air outlet groove 714 can increase the exposed part with the increase of air pressure, so as to realize the effect that the opening degree of the second air pipe 611 increases with the increase of air pressure. The over-expansion of the plastic film can be effectively avoided. The structure can form a seal when air is extracted, so as to not affect the normal air extraction;

[0045] Further, the air injection mechanism 8 further comprises an air inlet pipe 802, a threaded connector 804, a threaded ring 805 and a second air passage 806. The air inlet pipe 802 is fixedly arranged on the air inlet of the air pump in the loading base 2. The air inlet pipe 802 is fixedly arranged on the center partition plate 5. The air inlet pipe 802 is provided with an activated carbon adsorption layer. The threaded connector 804 is rotatably arranged on the end of the air injection branch pipe 803. The threaded ring 805 is fixedly arranged on the end of the first piston 708. The second air passage 806 is arranged in the first piston 708. The threaded connector 804 is threadedly arranged on the threaded ring 805. The structure is a connection structure of the air injection function. The user can inject air through the threaded connection. The injected air is mainly the air in the thawing cabinet body 1 and is filtered. The basic temperature is the condition for subsequent temperature control. After connection, air can be injected between the films. The films will expand to a certain extent. The air will quickly flow from the surface of the food, and then be discharged from the second air pipe 611. Since a certain pressure is required to discharge the air from the second air pipe 611, the air has time to flow between the films, thereby increasing the thawing efficiency;

[0046] Further, the air injection mechanism 8 further comprises a first fixed block 807, an abutting column 808, an arc-shaped block 809, a cross-shaped air closing block 810, a second fixed block 811, a mounting cylinder 812, a movable rod 813 and a second reset spring 814. The first fixed block 807 is fixedly installed in the end of the air storage groove 707. The abutting column 808 is fixedly installed on the first fixed block 807. Four groups of arc-shaped blocks 809 are fixedly installed in the second air passage 806. The abutting column 808 is inserted between the four groups of arc-shaped blocks 809. The cross-shaped air closing block 810 is movably arranged in the second air passage 806. The second fixed block 811 is fixedly installed in the second air passage 806. The mounting cylinder 812 is fixedly installed on the second fixed block 811. The movable rod 813 is movably inserted in the mounting cylinder 812. The second reset spring 814 is arranged in the mounting cylinder 812 and abuts against the movable rod 813. The cross-shaped air closing block 810 is fixedly connected with the movable rod 813. The shape of the cross-shaped air closing block 810 is matched with the shape of the four groups of arc-shaped blocks 809. The structure is a one-way valve structure of the second air passage 806. When the first piston 708 moves to the position where the abutting column 808 and the cross-shaped air closing block 810 are in contact, the air passage of the second air passage 806 is opened. On the one hand, continuous air injection can be realized when the second air passage 806 is in communication with the air injection branch pipe 803. On the other hand, repeated air exhaust can be realized by cooperation with the rotation of the columnar valve 702, thereby increasing the functionality of the equipment in use.

[0047] Further, the air injection mechanism 8 further comprises a first fixed block 807, an abutting column 808, an arc-shaped block 809, a cross-shaped air closing block 810, a second fixed block 811, a mounting cylinder 812, a movable rod 813 and a second reset spring 814. The first fixed block 807 is fixedly installed in the end of the air storage groove 707. The abutting column 808 is fixedly installed on the first fixed block 807. Four groups of arc-shaped blocks 809 are fixedly installed in the second air passage 806. The abutting column 808 is inserted between the four groups of arc-shaped blocks 809. The cross-shaped air closing block 810 is movably arranged in the second air passage 806. The second fixed block 811 is fixedly installed in the second air passage 806. The mounting cylinder 812 is fixedly installed on the second fixed block 811. The movable rod 813 is movably inserted in the mounting cylinder 812. The second reset spring 814 is arranged in the mounting cylinder 812 and abuts against the movable rod 813. The cross-shaped air closing block 810 is fixedly connected with the movable rod 813. The shape of the cross-shaped air closing block 810 is matched with the shape of the four groups of arc-shaped blocks 809. The structure is a one-way valve structure of the second air passage 806. When the first piston 708 moves to the position where the abutting column 808 and the cross-shaped air closing block 810 are in contact, the air passage of the second air passage 806 is opened. On the one hand, continuous air injection can be realized when the second air passage 806 is in communication with the air injection branch pipe 803. On the other hand, repeated air exhaust can be realized by cooperation with the rotation of the columnar valve 702, thereby increasing the functionality of the equipment in use.

[0048] Further, the air injection mechanism 8 further comprises a mounting ring 818, a heating ring 819 and an electric wire 820, the mounting ring 818 is fixedly installed on the front side of the center partition plate 5 in array, the heating ring 819 is fixedly installed in the mounting ring 818 in array, the heating ring 819 is sleeved on the air injection branch pipe 803, and the electric wire 820 is fixedly installed on the mounting ring 818. The structure is a heating structure for air injection. The part of the air injection branch pipe 803, on which the heating ring 819 is fixed, is a heat-conducting steel pipe, and the remaining part is a hose. Since the injected air flow is the air in the thawing cabinet body 1, only slight heating is needed to form a temperature differentiation thawing. The heating structure of the heating ring 819 is simple, the energy consumption is low, and the efficiency is also low, but it is suitable for the case of the present equipment. Since the independent area formed by the present equipment is formed according to the shape of the food, the space of the independent area is very small, and the heating mode of the heating ring 819 can also support the temperature control of the area, thereby increasing the energy saving and the accuracy of temperature control when the equipment is used.

[0049] Working principle: when the present application is used, the first layer of film is laid on the fixed mesh plate 3, the edge is laid on the bearing frame 605, the first air pipe 610 and the second air pipe 611 are pulled up, the film is pressed on the lower side of the first air pipe 610 and the second air pipe 611, then the food is placed on the film, the second layer of film is laid, the edge of the second film is laid on the edge of the first layer of film, and the first air pipe 610 and the second air pipe 611 are covered, then the telescopic motor 601 is started, the pressing frame 4 is lowered to press the bearing frame 605, the sealing block 607 is inserted into the sealing groove 606, and the sealing of the edge of the film is completed.

[0050] When vacuum thawing is selected, the first piston 708 is pulled to make the gas between the films be sucked into the gas storage groove 707, then the rotating handle 704 is rotated to make the cylindrical valve 702 rotate, the first air pipe 610 is closed, then the first piston 708 is moved to reset the first piston 708, the cross-shaped gas closing block 810 is opened under the action of gas pressure, the gas is discharged, the cylindrical valve 702 is rotated again to make the first air pipe 610 open, and the above operation is repeated to continuously suck the gas between the films, finally the cylindrical valve 702 is rotated to make the first air pipe 610 be closed.

[0051] When the temperature control gas injection is selected, the threaded connector 804 and the threaded ring 805 are connected, so that the first piston 708 moves to contact the cross-shaped gas closing block 810 with the stop post 808, so that the cross-shaped gas closing block 810 is opened, and then the limiting ring 815 is rotated, so that the limiting ring 815 is in contact with the limiting block 817, so that the position of the first piston 708 is fixed, and the gas injection can be performed. At this time, the heating ring 819 can heat the air in the gas injection branch pipe 803, and the temperature of different groups of heating rings 819 can be independently controlled to realize the formation of independent temperature zones. Independent control of different groups of heating rings 819 is a mature technology, and will not be repeated here. The gas enters between the membranes from the first gas pipe 610, and under a certain pressure, the limiting disc 713 is pushed to be discharged from the gas outlet groove 714.

[0052] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0053] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A frozen food anti-oxidation thawing cabinet, comprising a thawing cabinet body (1), a loading base (2) is fixedly installed on the lower side of the thawing cabinet body (1), and an evaporator and an air pump are arranged in the loading base (2), characterized in that: The thawing cabinet body (1) is provided with a fixed net plate (3) fixedly arranged in the cabinet body, an edge pressing frame (4) movably arranged on the upper side of the fixed net plate (3), and a center partition plate (5) fixedly arranged in the thawing cabinet body (1); The edge pressing assembly (6) comprises a movable block (604), a bearing frame (605), a first air pipe (610) and a second air pipe (611), the movable block (604) is movably arranged on the center partition plate (5), the edge pressing frame (4) is fixedly arranged on the movable block (604), the bearing frame (605) is fixedly arranged on the upper side of the fixed net plate (3), the shape of the bearing frame (605) is matched with the shape of the edge pressing frame (4), and the first air pipe (610) and the second air pipe (611) are movably arranged on the bearing frame (605); The air extraction assembly (7) comprises a mounting box (706), a gas storage groove (707) and a first piston (708), the mounting box (706) is fixedly arranged on the front side of the fixed net plate (3), the gas storage groove (707) is arranged in the mounting box (706), and the first piston (708) is movably arranged in the gas storage groove (707); The gas injection mechanism (8) comprises a gas injection main pipe (801) and a gas injection branch pipe (803), the gas injection main pipe (801) is fixedly arranged on the front side of the center partition plate (5), the gas injection main pipe (801) is connected with an exhaust port of a gas pump arranged in the loading base (2), the gas injection branch pipe (803) is fixedly arranged on the gas injection main pipe (801), and the gas injection branch pipe (803) is connected with the first piston (708).

2. The anti-oxidation thawing cabinet for frozen food according to claim 1, characterized in that: The edge pressing assembly (6) further comprises a telescopic motor (601), a first movable groove (602) and a connecting rod (603), the telescopic motor (601) is fixedly arranged on the upper side of the thawing cabinet body (1), the first movable groove (602) is arranged in the center partition plate (5) in an array mode, the connecting rod (603) is fixedly arranged on the output shaft of the telescopic motor (601), and the movable block (604) is fixedly arranged on the connecting rod (603) and movably arranged in the first movable groove (602).

3. The anti-oxidation thawing cabinet for frozen food according to claim 1, characterized in that: The edge pressing assembly (6) further comprises a sealing groove (606), a sealing block (607), a loading groove (608) and a sealing rubber pad (609), the sealing block (607) is fixedly arranged on the lower side of the edge pressing frame (4), the sealing groove (606) is arranged on the upper side of the bearing frame (605), the shape and position of the sealing groove (606) are matched with the shape and position of the sealing block (607), two groups of opposite loading grooves (608) are arranged at the front ends of the bearing frame (605) and the edge pressing frame (4), and the sealing rubber pad (609) is fixedly arranged in the loading groove (608).

4. The anti-oxidation thawing cabinet for frozen food according to claim 3, characterized in that: The edge pressing assembly (6) further comprises a second movable slot (612), a guide rod (613), a sliding block (614) and a guide hole (615), two groups of second movable slots (612) are formed on the left and right sides of the front end of the bearing frame (605), the guide rod (613) is fixedly installed in the second movable slot (612), two groups of sliding blocks (614) are fixedly installed on the lower side of the first air pipe (610) and the second air pipe (611), the sliding block (614) is movably inserted into the second movable slot (612), the guide hole (615) is formed in the sliding block (614), and the guide rod (613) is inserted into the guide hole (615).

5. The anti-oxidation thawing cabinet for frozen food according to claim 1, characterized in that: The air extraction assembly (7) further comprises a first flower section pipe (701), a columnar valve (702), an L-shaped air vent groove (703), a rotating handle (704) and a corrugated pipe (705), the first flower section pipe (701) is fixedly installed on the end of the first air pipe (610), the columnar valve (702) is rotatably installed in the first air pipe (610), the L-shaped air vent groove (703) is formed in the columnar valve (702), the rotating handle (704) is fixedly installed on the upper side of the columnar valve (702), the rotating handle (704) is rotatably installed on the first air pipe (610), the corrugated pipe (705) is fixedly installed at the lower end of the first air pipe (610), one end of the corrugated pipe (705) is fixedly installed on the mounting box (706), and the air storage groove (707) is in communication with the corrugated pipe (705).

6. The anti-oxidation thawing cabinet for frozen food according to claim 1, characterized in that: The air extraction assembly (7) further comprises a second flower section pipe (709), a second piston (710), a first return spring (711), a first air vent groove (712), a limiting disc (713) and an air outlet groove (714), the second piston (710) is movably inserted into the second air pipe (611), the first return spring (711) is sleeved on the second piston (710), the first return spring (711) abuts against the inner side of the second air pipe (611), the first air vent groove (712) is formed in the second piston (710), the limiting disc (713) is fixedly installed at the end of the second piston (710), and the air outlet groove (714) is formed at the end of the second piston (710).

7. The anti-oxidation thawing cabinet for frozen food according to claim 1, characterized in that: The air injection mechanism (8) further comprises an air inlet pipe (802), a threaded connecting head (804), a threaded ring (805) and a second air vent groove (806), the air inlet pipe (802) is fixedly installed on the air pump air inlet in the loading base (2), the air inlet pipe (802) is fixedly installed on the center partition plate (5), the air inlet pipe (802) is provided with an activated carbon adsorption layer, the threaded connecting head (804) is rotatably installed at the end of the injection branch pipe (803), the threaded ring (805) is fixedly installed at the end of the first piston (708), the second air vent groove (806) is formed in the first piston (708), and the threaded connecting head (804) is installed on the threaded ring (805) in a threaded manner.

8. A cabinet for defrosting frozen food products according to claim 7, characterized in that: The air injection mechanism (8) further comprises a first fixed block (807), an abutting column (808), an arc-shaped block (809), a cross-shaped air closing block (810), a second fixed block (811), a mounting cylinder (812), a movable rod (813) and a second reset spring (814), the end of the air storage groove (707) is fixedly installed with the first fixed block (807), the first fixed block (807) is fixedly installed with the abutting column (808), four groups of arc-shaped blocks (809) are fixedly installed in the second air groove (806), the abutting column (808) is inserted between the four groups of arc-shaped blocks (809), the cross-shaped air closing block (810) is movably arranged in the second air groove (806), the second air groove (806) is fixedly installed with the second fixed block (811), the second fixed block (811) is fixedly installed with the mounting cylinder (812), the mounting cylinder (812) movably inserts the movable rod (813), the mounting cylinder (812) is provided with the second reset spring (814), the movable rod (813) and the second reset spring (814) are in abutment, the cross-shaped air closing block (810) and the movable rod (813) are fixedly connected, and the shape of the cross-shaped air closing block (810) is matched with that of the four groups of arc-shaped blocks (809).

9. The anti-oxidation thawing cabinet for frozen food according to claim 1, characterized in that: The air injection mechanism (8) further comprises a limiting ring (815), a through groove (816) and a limiting block (817), the end of the first piston (708) is rotatably installed with the limiting ring (815), the limiting ring (815) is provided with the through groove (816), and the bearing frame (605) is fixedly installed with the limiting block (817), and the shape of the limiting block (817) is matched with that of the through groove (816).

10. The anti-oxidation thawing cabinet for frozen food according to claim 1, characterized in that: The air injection mechanism (8) further comprises a mounting ring (818), a heating ring (819) and an electric wire (820), the front side of the center partition plate (5) is fixedly installed with the mounting ring (818) in array, the mounting ring (818) is fixedly installed with the heating ring (819) in array, the heating ring (819) is sleeved on the air injection branch pipe (803), and the electric wire (820) is fixedly installed on the mounting ring (818).

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