A turnover type vacuum pre-cooling device

Abstract

The utility model relates to frozen equipment technical field, concretely relates to a turnover vacuum precooling device, including the freezing storehouse, the left side rotation of freezing storehouse is connected with the door plant, the front end fixed connection of freezing storehouse has the control panel, the upper end of freezing storehouse is equipped with the freezing assembly, the inside of freezing storehouse is equipped with the space change mechanism, the space change mechanism includes the hydraulic rod fixed connection in the right side of freezing storehouse, a plurality of the output fixed connection of hydraulic rod has the moving plate, the inside fixed connection of moving plate has the cylinder, the left side of cylinder is equipped with the round hole, through the air pressure reduction of freezing storehouse inside, make piston block drive support rod, and then make rubber block can closely with the inner wall of freezing storehouse and adhere, can improve the friction of moving plate and freezing storehouse, make moving plate be in stable state, can improve the sealing between moving plate and freezing storehouse simultaneously, change the space of freezing storehouse working cavity, and then the refrigeration efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a reusable vacuum precooling device. Background Technology

[0002] After producing ready-to-eat foods, food manufacturers need to package them. To prevent moisture loss that affects the taste and to prevent microorganisms on the food surface from causing spoilage, a vacuum precooling machine is needed for precooling and preservation. The vacuum precooling machine uses vacuum precooling technology, which uses a vacuum pump to extract air and water vapor from the vacuum chamber to reduce the air pressure inside the vacuum chamber. Under low pressure, the boiling point of water decreases and the latent heat of vaporization increases. The free water on the surface of the object being cooled vaporizes, carrying away its own and the heat from the environment, thus achieving a cooling effect.

[0003] The internal space of the existing device is relatively fixed. When freezing a small amount of food, the entire internal space still needs to be cooled, which leads to a certain amount of energy waste. The device still needs to remove all the air from the vacuum chamber to perform vacuum cooling on the fruits and vegetables inside, which invisibly prolongs the working time of the vacuum pump and also causes energy waste. The effect of use is not ideal. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a turnover-type vacuum precooling device to solve the problem that when freezing a small amount of food, it is still necessary to cool the entire internal space. This device still needs to completely remove the air from the vacuum chamber to perform vacuum cooling on the fruits and vegetables inside the chamber, which inadvertently prolongs the working time of the vacuum pump.

[0005] To achieve the above objectives, this utility model provides a rotary vacuum precooling device, including a freezing chamber, a door panel rotatably connected to the left side of the freezing chamber, a control panel fixedly connected to the front end of the freezing chamber, a freezing component provided at the upper end of the freezing chamber, and a space changing mechanism provided inside the freezing chamber.

[0006] The space-changing mechanism includes a hydraulic rod fixedly connected to the right side of the freezer compartment. A movable plate is fixedly connected to the output end of multiple hydraulic rods. A cylinder is fixedly connected inside the movable plate. A circular hole is opened on the left side of the cylinder. A piston block is slidably connected inside the cylinder. A support rod is fixedly connected to the right side of the piston block. A rotating rod is rotatably connected to the right side of the support rod. A movable rod is rotatably connected to the left side of the rotating rod. The movable rod is slidably connected to the inside of the movable plate. A rubber block is fixedly connected to one side of the movable rod.

[0007] Preferably, air holes are evenly distributed on the right side of the cylinder.

[0008] Preferably, a spring is fixedly connected to the left side of the piston block.

[0009] Preferably, a limiting block is fixedly connected to the left side of the inner wall of the cylinder.

[0010] Preferably, the adjacent rubber blocks are staggered left and right and fit together tightly.

[0011] The beneficial effects of this utility model are:

[0012] After the air pressure inside the freezer compartment is reduced, the piston block drives the support rod, which in turn allows the rubber block to fit tightly against the inner wall of the freezer compartment. This increases the friction between the moving plate and the freezer compartment, keeping the moving plate in a stable state. At the same time, it improves the sealing between the moving plate and the freezer compartment, changes the space of the freezer compartment's working chamber, and thus increases the refrigeration efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the movable plate in an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the movable plate in an embodiment of the present utility model.

[0018] The diagram is marked as follows:

[0019] 1. Freezer compartment; 2. Door panel; 3. Control panel; 4. Hydraulic rod; 5. Moving plate; 6. Freezer assembly; 7. Cylinder; 8. Circular hole; 9. Spring; 10. Limiting block; 11. Piston block; 12. Air hole; 13. Moving rod; 14. Rubber block; 15. Support rod; 16. Rotating rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1-4 As shown, this utility model provides a rotary vacuum precooling device, including a freezing chamber 1, a door panel 2 rotatably connected to the left side of the freezing chamber 1, a control panel 3 fixedly connected to the front end of the freezing chamber 1, a freezing component 6 provided at the upper end of the freezing chamber 1, the freezing component 6 including a refrigeration device and a suction device, so that the interior is in a vacuum state, and a space changing mechanism is provided inside the freezing chamber 1.

[0023] The space-changing mechanism includes a hydraulic rod 4 fixedly connected to the right side of the freezer compartment 1. The hydraulic rod 4 is a driving device. In the prior art, the output ends of multiple hydraulic rods 4 are fixedly connected to a movable plate 5. The hydraulic rods 4 can drive the movable plate 5 to move. A cylinder 7 is fixedly connected inside the movable plate 5. A circular hole 8 is opened on the left side of the cylinder 7, which communicates with the left side of the freezer compartment 1. A piston block 11 is slidably connected inside the cylinder 7. The piston block 11 can move left and right inside the cylinder 7. A support rod 15 is fixedly connected to the right side of the piston block 11. The movement of the piston block 11 drives the support rod 15 to move. A rotating rod 16 is uniformly rotatably connected to the right side of the support rod 15. The movement of the support rod 15 drives the rotating rod 16 to move. A moving rod 13 is rotatably connected to the left side of the rotating rod 16. The movement of the rotating rod 16 drives the moving rod 13 to move inside the movable plate 5. The moving rod 13 is slidably connected to the inside of the movable plate 5. A rubber block 14 is fixedly connected to one side of the moving rod 13. The moving rod 13 drives the rubber block 14 to move.

[0024] During operation, the hydraulic rod 4 drives the moving plate 5 to move according to the needs of the work, thereby changing the size of the working chamber on the left side of the freezer compartment 1. Then, the items to be frozen are placed in the front part of the freezer compartment 1, and the door panel 2 is closed. At this time, the air extraction device inside the freezer assembly 6 evacuates the interior of the freezer compartment 1 to a vacuum state. During the air extraction, the air pressure on the left side of the freezer compartment 1 decreases. Since the circular hole 8 is connected to the freezer compartment 1, the piston block 11 moves to the left inside the cylinder 7. When the piston block 11 moves, it drives the support rod 15 to move to the left. When the support rod 15 moves, it drives the rotating rod 16 connected to the right side to move. The initial state of 6 is tilted. When the rotating rod 16 moves, it pushes the moving rod 13 to move inside the moving plate 5. The moving rod 13 drives the rubber block 14 to move. The rubber block 14 moves towards the inner wall of the freezer compartment 1 and fits against it. In this way, when working, after the air pressure inside the freezer compartment 1 decreases, the piston block 11 drives the support rod 15, which in turn allows the rubber block 14 to fit tightly against the inner wall of the freezer compartment 1. This increases the friction between the moving plate 5 and the freezer compartment 1, making the moving plate 5 stable. At the same time, it improves the sealing between the moving plate 5 and the freezer compartment 1, changes the space of the working chamber of the freezer compartment 1, and thus increases the refrigeration efficiency.

[0025] like Figure 3 As shown, air holes 12 are evenly distributed on the right side of the cylinder 7 to prevent the right side of the piston block 11 from being affected by air pressure when it moves, thus ensuring the smooth movement of the piston block 11.

[0026] like Figure 3 As shown, a spring 9 is fixedly connected to the left side of the piston block 11. The spring 9 is used to reset the piston block 11 after it has moved.

[0027] like Figure 3 As shown, a limiting block 10 is fixedly connected to the left side of the inner wall of the cylinder 7. The limiting block 10 is used to restrict the piston block 11 from moving to the left to avoid excessive pressure damaging the spring 9.

[0028] like Figure 4 As shown, the adjacent rubber blocks 14 are staggered left and right and fit tightly together to improve the sealing effect.

[0029] Working principle: During operation, the hydraulic rod 4 drives the moving plate 5 to move according to the work requirements, thereby changing the size of the working chamber on the left side of the freezer compartment 1. Then, the items to be frozen are placed in the front part of the freezer compartment 1, and the door panel 2 is closed. At this time, the air extraction device inside the freezer assembly 6 evacuates the interior of the freezer compartment 1 to a vacuum state. During the air extraction, the air pressure on the left side of the freezer compartment 1 decreases. Since the circular hole 8 is connected to the freezer compartment 1, the piston block 11 moves to the left inside the cylinder 7. When the piston block 11 moves, it drives the support rod 15 to move to the left. When the support rod 15 moves, it drives the rotating rod 16 connected to the right side to move. The rod 16 is initially tilted. When the rod 16 moves, it pushes the moving rod 13 to move inside the moving plate 5. The moving rod 13 drives the rubber block 14 to move. The rubber block 14 moves towards the inner wall of the freezer compartment 1. In this way, when the air pressure inside the freezer compartment 1 decreases during operation, the piston block 11 drives the support rod 15, which in turn allows the rubber block 14 to fit tightly against the inner wall of the freezer compartment 1. This increases the friction between the moving plate 5 and the freezer compartment 1, making the moving plate 5 stable. At the same time, it improves the sealing between the moving plate 5 and the freezer compartment 1, changes the space of the working chamber of the freezer compartment 1, and thus increases the refrigeration efficiency.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0031] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rotary vacuum precooling device, comprising a freezing chamber (1), characterized in that, A door panel (2) is rotatably connected to the left side of the freezer compartment (1), a control panel (3) is fixedly connected to the front end of the freezer compartment (1), a freezer assembly (6) is provided at the upper end of the freezer compartment (1), and a space changing mechanism is provided inside the freezer compartment (1). The space-changing mechanism includes a hydraulic rod (4) fixedly connected to the right side of the freezer compartment (1). The output ends of the multiple hydraulic rods (4) are fixedly connected to a movable plate (5). A cylinder (7) is fixedly connected inside the movable plate (5). A circular hole (8) is opened on the left side of the cylinder (7). A piston block (11) is slidably connected inside the cylinder (7). A support rod (15) is fixedly connected to the right side of the piston block (11). A rotating rod (16) is rotatably connected to the right side of the support rod (15). A moving rod (13) is rotatably connected to the left side of the rotating rod (16). The moving rod (13) is slidably connected to the inside of the movable plate (5). A rubber block (14) is fixedly connected to one side of the moving rod (13).

2. The rotary vacuum precooling device according to claim 1, characterized in that, The cylinder (7) has air holes (12) evenly distributed on its right side.

3. The rotary vacuum precooling device according to claim 1, characterized in that, A spring (9) is fixedly connected to the left side of the piston block (11).

4. A rotary vacuum precooling device according to claim 3, characterized in that, A limiting block (10) is fixedly connected to the left side of the inner wall of the cylinder (7).

5. A rotary vacuum precooling device according to claim 1, characterized in that, The adjacent rubber blocks (14) are staggered to the left and right and fit together tightly.

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