An ice-making cooling circulation tank

Abstract

This utility model relates to the field of ice-making equipment technology, specifically to an ice-making cooling circulation tank, including an ice-making box. The top of the ice-making box has multiple water inlets, and ice cube trays are fixedly connected to the bottom of each water inlet. An extension box is slidably engaged inside the bottom of the ice cube tray. The ice-making box contains a de-blocking component for removing ice cubes from the ice cube tray. The de-blocking component includes a pressing plate slidably engaged inside the bottom of the extension box. An L-shaped plate is fixedly connected to the bottom of the extension box. This utility model, through its de-blocking component, uses the pressing plate slidably engaged at the bottom of the extension box, and utilizes a top bolt and spring mechanism to generate an upward pressing force on the bottom of the ice cube tray when triggered, causing the ice cubes to quickly separate from the inner wall of the ice tray, thus achieving smooth demolding of the ice cubes. This effectively avoids the operational hassle of bending or striking the box body required by traditional ice-making boxes, improving ease of use and durability.

Description

Technical Field

[0001] This utility model relates to the field of ice-making equipment technology, and in particular to an ice-making cooling circulation tank. Background Technology

[0002] In daily life, home ice making usually relies on simple ice makers. Water is poured into multiple ice compartments and placed in the freezer to freeze the water into small ice cubes for cooling drinks or preserving food. Common ice makers are mostly made of plastic. The ice cubes are released by flipping or manually squeezing the bottom, and then water is refilled and frozen again to achieve the effect of circulating ice making.

[0003] In existing technologies, these traditional household ice makers have some prominent structural problems in actual use: First, since the ice cubes often stick tightly to the inner wall of the ice tray after molding, users usually need to bend the box or tap the table to force them out. This method is not only inconvenient to operate, but also easily causes deformation or even damage to the plastic box, thus affecting its service life. Second, traditional ice makers generally do not have an effective auxiliary demolding structure, making it impossible to release the ice cubes one by one. When users only need to take out a portion of the ice cubes, the entire box of ice cubes often falls out at the same time. This is wasteful and requires the extra ice cubes to be put back in, making the operation cumbersome and not conducive to high-frequency, continuous daily use. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose an ice-making cooling circulation tank to solve the problems of existing ice boxes having trouble removing ice and not being able to remove ice one by one.

[0005] To achieve the above objectives, this utility model provides an ice-making cooling circulation tank, including an ice-making box. The top of the ice-making box has multiple water inlets, and the bottom of each of the multiple water inlets is fixedly connected to an ice cube box. An extension box is slidably engaged inside the bottom of the ice cube box, and the top of the extension box is connected to the bottom of the ice cube box. The ice-making box contains a de-blocking component for de-blocking the ice cubes inside the ice cube boxes. The de-blocking component includes a pressing plate slidably engaged inside the bottom of the extension box. An L-shaped plate is fixedly connected to the bottom of the extension box. A top bolt is slidably engaged inside the L-shaped plate at the end furthest from the extension box. A spring is fixedly connected to the outside of the bottom of the top bolt, and the spring is sleeved on the outside of the top bolt. The end of the spring furthest from the top bolt is fixedly connected to the bottom of one end of the L-shaped plate. The top of the top bolt contacts the bottom of the pressing plate. The ice-making box contains a triggering component for triggering multiple top bolts to de-block the ice cubes inside the multiple ice cube boxes one by one.

[0006] Preferably, the inner wall of the bottom of the expansion box is provided with alignment grooves on both sides, and sliders are fixedly connected to both sides of the extrusion plate. The end of the slider away from the extrusion plate is slidably engaged with the inside of the alignment groove. The thickness of the slider is adapted to the depth of the alignment groove, and a sealing gasket is fixedly connected to the bottom of the slider.

[0007] Preferably, an annular bottom pad is fixedly connected to the bottom of the expansion box, a sealing gasket is fixedly connected to the top of the bottom pad, and the top of the bottom pad is in contact with the bottom of the extrusion plate.

[0008] Preferably, the top of the ice maker has multiple connection holes, and multiple adjacent water inlets are connected through the connection holes. The top of one end of the ice maker has an overflow hole, the bottom of which is connected to an overflow pipe, and the output end of the overflow pipe passes through the side wall of the ice maker.

[0009] Preferably, a connecting plate is fixedly connected to the bottom of each pair of opposite sides of the expansion boxes, and a connecting block is fixedly connected to the side wall of one of the expansion boxes located in the middle of the ice maker. The side wall of the ice maker has a sliding hole, and the end of the connecting block away from the expansion box passes through the interior of the sliding hole.

[0010] Preferably, a limiting block is fixedly connected to one side of the ice maker, and a plurality of limiting grooves are provided on one side of the limiting block. A baffle plate is rotatably connected to the top of one end of the connecting block via a shaft, and the end of the baffle plate away from the connecting block contacts the inside of the limiting groove.

[0011] Preferably, a positioning block is fixedly connected to one side of one end of the baffle, a positioning rod is slidably engaged inside one end of the positioning block, a positioning hole is opened at the top of the connecting block, and the bottom of the positioning rod passes through the interior of the positioning block and connects with the interior of the positioning hole.

[0012] Preferably, the ice cube trays are arranged in two rows. The triggering component includes an arc block that is slidably connected to the bottom of the ice cube tray. There are two arc blocks, each corresponding to the bottom of one of the two rows of ice cube trays. A placement box is fixedly connected to the bottom of one end of the ice cube tray. When the arc block is inside the ice cube tray, its position is inside the placement box.

[0013] Preferably, the top of the ice maker has two slidably connected covers, the covers being made of transparent plastic, and the dimensions of the covers being larger than the dimensions of the top of the ice maker.

[0014] Preferably, the ice maker has two sliding grooves inside, the positions of which correspond to the positions of the two rows of ice cube boxes. Sliding rods are slidably connected inside the sliding grooves. One end of each sliding rod is fixedly connected to the bottom of two arc-shaped blocks. A connecting cylinder is slidably engaged at the top of the sliding rod at the end away from the arc-shaped blocks. The tops of the two connecting cylinders are fixedly connected to the bottom of one end of each of the two cover plates. A moving groove is formed at the top of one end of each sliding rod. Connecting plates are fixedly connected to one side wall of each of the two expansion boxes at one end of the ice maker. The ends of each connecting plate away from the expansion boxes are slidably engaged inside the moving grooves at the top of the two sliding rods.

[0015] The beneficial effects of this utility model are:

[0016] 1. By using the designed ice block removal component, the ice block is quickly separated from the inner wall of the ice tray by sliding and snapping the extrusion plate at the bottom of the expansion box. The combination of the top bolt and the spring generates an upward extrusion force on the bottom of the ice block box when triggered, thus achieving smooth demolding of the ice block. This effectively avoids the inconvenience of bending or hitting the box body required by traditional ice boxes, improving the convenience and durability of use.

[0017] By using a set triggering component, along with linked arc blocks, slide bars, and connecting mechanisms, users can sequentially trigger multiple top bolts when operating the outer cover, thereby pushing multiple extrusion plates to release ice blocks one by one. This structure enables the release of ice blocks one by one, avoiding the situation of pouring out all the ice blocks at once, meeting the user's need to take ice as needed, and effectively improving the flexibility and practicality of ice-making operations. It is especially suitable for frequent daily use and cooling cycle scenarios. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 3 This utility model Figure 1 Side view sectional structural schematic diagram;

[0022] Figure 4 This is a schematic diagram of the bottom structure of the extension box and extrusion plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the ice cube box and expansion box structure of this utility model;

[0024] Figure 6 This utility model Figure 5 Schematic diagram of the side cross-section structure.

[0025] The diagram is marked as follows:

[0026] 1. Ice container; 2. Lid; 3. Overflow hole; 4. Overflow pipe; 5. Ice cube container; 6. Extension box; 7. Placement box; 8. Alignment groove; 9. L-shaped plate; 10. Slider; 11. Top bolt; 12. Spring; 13. Bottom pad; 14. Extrusion plate; 15. Connecting plate; 16. Slide groove; 17. Arc block; 18. Linking plate; 19. Slide rod; 20. Connecting cylinder; 21. Water inlet; 22. Connecting hole; 23. Limiting block; 24. Limiting groove; 25. Connecting block; 26. Baffle plate; 27. Positioning block; 28. Positioning rod; 29. ​​Slide hole. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] Such as this utility model Figures 1 to 6The diagram shows an ice-making cooling circulation tank, including an ice-making box 1. The top of the ice-making box 1 has multiple water inlet holes 21, and the bottom of each water inlet hole 21 is fixedly connected to an ice cube box 5. An extension box 6 is slidably engaged inside the bottom of the ice cube box 5, and the top of the extension box 6 is connected to the bottom of the ice cube box 5. The ice-making box 1 has a de-crushing component inside for de-crushing the ice cubes inside the ice cube box 5. The de-crushing component includes a pressing plate 14 slidably engaged inside the bottom of the extension box 6. An L-shaped plate 9 is fixedly connected. A top bolt 11 is slidably engaged inside the end of the L-shaped plate 9 away from the expansion box 6. A spring 12 is fixedly connected to the outside of the bottom of the top bolt 11. The spring 12 is sleeved on the outside of the top bolt 11. The end of the spring 12 away from the top bolt 11 is fixedly connected to the bottom of one end of the L-shaped plate 9. The top of the top bolt 11 is in contact with the bottom of the extrusion plate 14. A triggering component is provided inside the ice box 1. The triggering component is used to trigger multiple top bolts 11 to complete the removal of ice blocks one by one inside multiple ice cube boxes 5.

[0030] By using the de-blocking component, the extrusion plate 14 slides and engages at the bottom of the expansion box 6, and the top bolt 11 and spring 12 work together to generate an upward extrusion force on the bottom of the ice cube box 5 when triggered, causing the ice cubes to quickly separate from the inner wall of the ice tray, thus achieving smooth demolding of the ice cubes. This effectively avoids the operational hassle of bending or knocking the box body required by the traditional ice box 1, improving the convenience and durability of use.

[0031] like Figures 1 to 6 As shown, alignment grooves 8 are provided on both sides of the bottom inner wall of the expansion box 6. Slider 10 is fixedly connected to both sides of the extrusion plate 14. The end of the slider 10 away from the extrusion plate 14 is slidably engaged with the inside of the alignment groove 8. The thickness of the slider 10 is adapted to the depth of the alignment groove 8. A sealing gasket is fixedly connected to the bottom of the slider 10. An annular bottom pad 13 is fixedly connected to the bottom of the expansion box 6. A sealing gasket is fixedly connected to the top of the bottom pad 13. The top of the bottom pad 13 is in contact with the bottom of the extrusion plate 14.

[0032] The alignment groove 8 and slider 10 facilitate the movement of the extrusion plate 14. The dimensions of the slider 10 and the sealing gaskets at the bottom of the slider 10 and the top of the bottom pad 13 ensure a tight seal inside the expansion box 6, preventing water leakage when water is poured into the expansion box 6. Later, during de-icing, pressing the bottom of the top bolt 11 causes the top of the top bolt 11 to move the extrusion plate 14 upwards. The extrusion plate 14 then slides along the bottom of the expansion box 6 via the slider 10, pushing the ice blocks inside the expansion box 6 upwards a certain distance, thus detaching the ice blocks from the inner wall of the expansion box 6 and facilitating their removal.

[0033] like Figure 1As shown, the top of the ice maker 1 has multiple connection holes 22, and multiple adjacent water inlets 21 are connected through the connection holes 22. The top of one end of the ice maker 1 has an overflow hole 3, and the bottom of the overflow hole 3 is connected to an overflow pipe 4. The output end of the overflow pipe 4 passes through the side wall of the ice maker 1.

[0034] With the overflow hole 3, overflow pipe 4, and connecting hole 22, when making ice, water is first poured into the top of the ice box 1. The water will then fill the interior of multiple ice cube boxes 5 through the connecting hole 22, which facilitates subsequent ice making. At the same time, excess water will be discharged from the interior of the ice box 1 through the overflow hole 3 and overflow pipe 4, thus preventing excess water from remaining inside the ice box 1 and causing ice to form inside the ice box 1, making it inconvenient to use.

[0035] like Figures 1 to 4 As shown, connecting plates 15 are fixedly connected to the bottom of each pair of expansion boxes 6 on opposite sides. A connecting block 25 is fixedly connected to the side wall of one expansion box 6 located in the middle of the ice box 1. A sliding hole 29 is opened on the side wall of the ice box 1. The end of the connecting block 25 away from the expansion box 6 passes through the interior of the sliding hole 29.

[0036] The expansion box 6 and connecting block 25 allow for easy adjustment of the internal space of the ice cube box 5, enabling the production of ice cubes of different sizes as needed. During use, by moving the connecting block 25, it slides inside the sliding hole 29, while simultaneously moving the expansion box 6 upwards. At this point, the connecting plate 15 connects multiple expansion boxes 6 to each other, causing them to move upwards and thus reducing the ice-making space inside the ice cube box 5, making it easier to produce small ice cubes for use.

[0037] like Figure 1 and Figure 2 As shown, a limiting block 23 is fixedly connected to one side of the ice box 1. Multiple limiting grooves 24 are provided on one side of the limiting block 23. A baffle plate 26 is rotatably connected to the top of one end of the connecting block 25 via a shaft. The end of the baffle plate 26 away from the connecting block 25 contacts the inside of the limiting groove 24. A positioning block 27 is fixedly connected to one side of one end of the baffle plate 26. A positioning rod 28 is slidably engaged inside one end of the positioning block 27. A positioning hole is provided on the top of the connecting block 25. The bottom of the positioning rod 28 passes through the inside of the positioning block 27 and connects to the inside of the positioning hole.

[0038] With the baffle plate 26 and positioning block 27 in place, when multiple expansion boxes 6 are adjusted to the appropriate position, the baffle plate 26 is rotated into the corresponding limiting groove 24. At this time, the positioning block 27 will be parallel to the connecting block 25. Then, by inserting the bottom of the positioning rod 28 through the inside of the positioning block 27 into the positioning hole inside the connecting block 25, the position of the expansion box 6 is fixed, thereby preventing the expansion box 6 from moving when filling with water.

[0039] like Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, multiple ice cube trays 5 are arranged in two rows. The triggering component includes an arc block 17 that is slidably connected to the bottom of the ice cube tray 1. There are two arc blocks 17, which correspond to the bottom of the two rows of ice cube trays 5 respectively. A placement box 7 is fixedly connected to the bottom of one end of the ice cube tray 1. When the arc block 17 is inside the ice cube tray 1, its position is inside the placement box 7. Two cover plates 2 are slidably connected to the top of the ice cube tray 1. The cover plates 2 are made of transparent plastic and their dimensions are larger than the dimensions of the top of the ice cube tray 1.

[0040] Through the set trigger components, and via the linked arc block 17, slide bar 19, and connecting mechanism, the user can sequentially trigger multiple top bolts 11 when operating the outer cover 2, thereby pushing multiple extrusion plates 14 to release ice blocks one by one. This structure enables the ice blocks to be released one by one, avoiding the situation where all the ice blocks are poured out at once, meeting the user's need to take ice as needed, effectively improving the flexibility and practicality of ice-making operations, and is especially suitable for frequent daily use and cooling cycle scenarios. When removing ice blocks, first pull one end of the cover 2... At this point, the arc block 17 is moved by the connecting cylinder 20 and the sliding rod 19. The placement box 7 increases the initial distance between the arc block 17 and the nearest expansion box 6, causing one end of the cover plate 2 to move further away from the top of the first water inlet 21 as the arc block 17 moves. When one end of the cover plate 2 is completely away from the top of the first water inlet 21, the top of the arc block 17 will contact the bottom of the top bolt 11, causing the top of the top bolt 11 to push against the pressing plate 14 and move upwards, thus... The extrusion plate 14 removes ice cubes from the expansion box 6, thus preventing the cover plate 2 from obstructing the removal of ice cubes from the ice cube box 5. Simultaneously, a spring 12 automatically returns to its initial position when the top of the arc-shaped block 17 moves away from the bottom of the top bolt 11, facilitating future use. Furthermore, by arranging two arc-shaped blocks 17 and multiple ice cube boxes 5 in two rows, the two arc-shaped blocks 17, driven by the two cover plates 2, can sequentially remove ice cubes one by one from the multiple ice cube boxes 5. This design facilitates user operation. Later, simply inverting the ice container 1 causes the ice cubes to fall out automatically, making operation simple. Additionally, the L-shaped plate 9 allows the expansion box 6 to rise via the spring 12 when adjusting its height. Simultaneously, the spring 12 pushes the top bolt 11 upwards, causing the top of the top bolt 11 to press firmly against the bottom of the pressing plate 14, facilitating ice removal. Furthermore, the transparent plastic material of the cover plate 2 allows for easy observation of the ice formation inside the ice container 1.

[0041] like Figure 1 , Figure 3 and Figure 4As shown, the ice maker 1 has two sliding grooves 16 inside, and the positions of the two sliding grooves 16 correspond to the positions of the two rows of ice cube boxes 5. The sliding grooves 16 are slidably connected to the sliding rods 19. One end of the two sliding rods 19 is fixedly connected to the bottom of the two arc blocks 17 respectively. The top of the sliding rod 19 away from the arc block 17 is slidably engaged with the connecting cylinder 20. The top of the two connecting cylinders 20 is fixedly connected to the bottom of one end of the two cover plates 2 respectively. The top of one end of the sliding rod 19 has a moving groove. The side walls of the two expansion boxes 6 at one end of the ice maker 1 are fixedly connected with the connecting plates 18 respectively. The ends of the two connecting plates 18 away from the expansion boxes 6 are slidably engaged with the inside of the moving groove at the top of the two sliding rods 19.

[0042] By setting up the connecting plate 18 and the connecting cylinder 20, when adjusting the height of the expansion box 6 later, the connecting plate 18 will move one end of the slide rod 19 upward, and at the same time, the top of one end of the slide rod 19 will retract into the bottom of the connecting cylinder 20, thereby causing the other end of the slide rod 19 to move the arc block 17 upward. This ensures that the distance between the arc block 17 and the top bolt 11 is not affected by the adjustment of the expansion box 6, thus facilitating the use of the detached block. At the same time, by opening a moving groove at the top of one end of the slide rod 19, it is also convenient for the bottom of the connecting plate 18 to slide on the top of the slide rod 19, avoiding the problem of the connecting plate 18 moving when the slide rod 19 moves.

[0043] 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.

[0044] 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. An ice-making cooling circulation tank, characterized by, The device includes an ice maker (1), which has multiple water inlets (21) on its top. An ice cube tray (5) is fixedly connected to the bottom of each of the multiple water inlets (21). An extension box (6) is slidably engaged with the bottom of the ice cube tray (5), and the top of the extension box (6) is connected to the bottom of the ice cube tray (5). The ice maker (1) has a de-crushing component inside for de-crushing the ice cubes inside the ice cube tray (5). The de-crushing component includes a component that is slidably engaged with the bottom of the extension box (6). The extrusion plate (14) is fixedly connected to the bottom of the expansion box (6). An L-shaped plate (9) is fixedly connected to the inside of the L-shaped plate (9) away from the expansion box (6). A top bolt (11) is fixedly connected to the outside of the bottom of the top bolt (11). The spring (12) is sleeved on the outside of the top bolt (11). The end of the spring (12) away from the top bolt (11) is fixedly connected to the bottom of one end of the L-shaped plate (9). The top of the top bolt (11) is in contact with the bottom of the extrusion plate (14). The ice box (1) is equipped with a triggering component inside, which is used to trigger multiple top bolts (11) to remove ice blocks one by one from the ice blocks inside multiple ice cube boxes (5).

2. The ice-making cooling tub of claim 1, wherein, Alignment grooves (8) are provided on both sides of the bottom inner wall of the expansion box (6). Slider (10) is fixedly connected to both sides of the extrusion plate (14). The end of the slider (10) away from the extrusion plate (14) is slidably engaged with the inside of the alignment groove (8). The thickness of the slider (10) is adapted to the depth of the alignment groove (8). A sealing gasket is fixedly connected to the bottom of the slider (10).

3. An ice-making cooling tub as defined in claim 2, wherein The bottom of the expansion box (6) is fixedly connected to an annular bottom pad (13), and the top of the bottom pad (13) is fixedly connected to a sealing pad. The top of the bottom pad (13) is in contact with the bottom of the extrusion plate (14).

4. The ice-making cooling tub of claim 1, wherein, The top of the ice maker (1) is provided with multiple connection holes (22), and multiple adjacent water inlets (21) are connected through the connection holes (22). The top of one end of the ice maker (1) is provided with an overflow hole (3), and the bottom of the overflow hole (3) is connected to an overflow pipe (4). The output end of the overflow pipe (4) penetrates the side wall of the ice maker (1).

5. The ice-making cooling tub of claim 1, wherein, Each of the multiple expansion boxes (6) has a connecting plate (15) fixedly connected to the bottom of each pair of opposite sides. A connecting block (25) is fixedly connected to the side wall of one of the expansion boxes (6) located in the middle of the ice box (1). A sliding hole (29) is opened on the side wall of the ice box (1). The end of the connecting block (25) away from the expansion box (6) passes through the interior of the sliding hole (29).

6. An ice-making cooling tub as defined in claim 5, wherein A limiting block (23) is fixedly connected to one side of the ice box (1). A plurality of limiting grooves (24) are provided on one side of the limiting block (23). A baffle plate (26) is rotatably connected to the top of one end of the connecting block (25) via a shaft. The end of the baffle plate (26) away from the connecting block (25) is in contact with the inside of the limiting groove (24).

7. An ice-making cooling tub as defined in claim 6, wherein A positioning block (27) is fixedly connected to one side of one end of the baffle (26). A positioning rod (28) is slidably engaged inside one end of the positioning block (27). A positioning hole is opened at the top of the connecting block (25). The bottom of the positioning rod (28) passes through the interior of the positioning block (27) and connects to the interior of the positioning hole.

8. The ice-making cooling tub of claim 1, wherein, Multiple ice cube boxes (5) are arranged in two rows. The triggering component includes an arc block (17) that is slidably connected to the bottom of the ice cube box (1). There are two arc blocks (17) and they correspond to the bottom of the two rows of ice cube boxes (5). A placement box (7) is fixedly connected to the bottom of one end of the ice cube box (1). When the arc block (17) is inside the ice cube box (1), its position is inside the placement box (7).

9. An ice-making cooling tub as defined in claim 8, wherein The top of the ice maker (1) has two sliding covers (2), which are made of transparent plastic and are larger than the top of the ice maker (1).

10. The ice-making cooling tub of claim 9, wherein, The ice box (1) has two sliding grooves (16) inside, and the positions of the two sliding grooves (16) correspond to the positions of the two rows of ice cube boxes (5). The sliding grooves (16) are slidably connected to the sliding rods (19). One end of the two sliding rods (19) is fixedly connected to the bottom of the two arc blocks (17). The top of the sliding rod (19) away from the arc block (17) is slidably engaged with the connecting cylinder (20). The top of the two connecting cylinders (20) is fixedly connected to the bottom of one end of the two cover plates (2). The top of one end of the sliding rod (19) is provided with a moving groove. The side walls of the two expansion boxes (6) at one end of the ice box (1) are fixedly connected with the connecting plates (18). The ends of the two connecting plates (18) away from the expansion boxes (6) are slidably engaged with the inside of the moving groove at the top of the two sliding rods (19).

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