Open-close type large ice-shaped spraying type ice maker

Abstract

The invention relates to the technical field of ice-making devices, and discloses an open-close type large ice-shaped spray-type ice maker, an ice-making assembly comprises an ice-making rack, an open-close mechanism and an evaporator, and a mold with a downward opening is mounted in the ice-making rack; an opening and closing mechanism is connected to the outer surface of the ice making frame, a water injection opening is formed in the outer surface of the opening and closing mechanism, the opening and closing mechanism is connected with the ice making frame through a rotating structure, and when the ice maker is in an ice making state, the water injection opening corresponds to the mold in position to form a complete and sealed ice making cavity; a water injection pipe is arranged in the opening and closing mechanism, one end of the water injection pipe extends to the outer surface of the opening and closing mechanism, and the other end of the water injection pipe is connected with the water injection opening; the ice-making and de-icing machine has the advantages of high ice-making and de-icing efficiency and high ice block integrity, and solves the problems of low ice block making efficiency and easy fragmentation during de-icing when large ice blocks are made in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of ice making devices, in particular to an openable and closable large ice-shaped spraying ice making machine. Background Art

[0002] Large ice makers have significant application value in commercial cold chains, food processing, medical refrigeration, and other fields. Their core requirement is the ability to efficiently produce large, transparent ice cubes with high integrity. Currently, large ice makers on the market primarily utilize integrated molds with either electric melting or mechanical push-to-free ice removal. While these devices can meet basic ice-making needs, they still have significant limitations in terms of production efficiency and ice quality.

[0003] Existing large-scale ice-making machines generally have problems such as high energy consumption for ice defrosting, complex mold structures, and easy breakage of ice cubes. Specifically, the electric defrosting method consumes a large amount of electricity to melt the ice layer on the contact surface of the mold, which not only increases operating costs, but may also cause the surface of the ice cubes to melt and affect the quality of the finished product; mechanical push-type defrosting is prone to mechanical damage to the mold, and long-term use will lead to a decrease in sealing performance. More importantly, traditional defrosting methods often cause large ice cubes to fall directly, which can easily cause cracking or breakage due to excessive impact force, seriously affecting their commercial value. In addition, the fixed mold structure is prone to poor sealing when water is injected, resulting in water waste and reduced ice-making efficiency. These defects have seriously restricted the market application and technological development of large-scale ice-making machines. Summary of the Invention

[0004] (1) Technical Problems Solved: In response to the shortcomings of the existing technology, the present invention provides an open-and-close large ice-shaped spray-type ice maker, which has the advantages of high ice making and ice-removing efficiency and high ice integrity. It solves the problems of low efficiency in making large ice cubes and easy breakage during ice removal in the existing technology.

[0005] (II) Technical solution: In order to achieve the above-mentioned purpose of high ice making and ice-removing efficiency and high ice integrity, the present invention provides the following technical solution: an openable and closeable large ice-shaped spray ice maker, comprising an ice-making assembly, an ice basket and a water tank, wherein the water tank is arranged at the lower end of the ice basket, and the ice-making assembly is arranged at the upper end of the ice basket, the ice-making assembly comprises an ice-making rack, an opening and closing mechanism and an evaporator, and a mold with an opening placed downward is installed inside the ice-making rack; the outer surface of the ice-making rack is connected to the opening and closing mechanism, the upper surface of the opening and closing mechanism is provided with a water injection port, and a water injection pipe is provided inside, one end of the water injection pipe extends to the outer surface of the opening and closing mechanism, and the other end is connected to the water injection port; the opening and closing mechanism is connected to the ice-making rack via a rotating structure, and the rotating structure includes a rotating shaft, and the opening and closing mechanism is rotatably connected to the ice-making rack via the rotating shaft; When the ice maker is in the ice-making state, the upper surface of the opening and closing mechanism is sealed and engaged with the lower surface of the ice-making rack, and the water injection port corresponds to the position of the mold to form a complete and sealed ice-making cavity; the water injection pipe is connected to the water tank through the water supply pipe; fastening mechanisms are provided at both ends of the opening and closing mechanism, and the fastening mechanisms connect the opening and closing mechanism and the ice-making rack. When the opening and closing mechanism and the ice-making rack are merged, the fastening mechanisms press the two together, and the connection between the two is sealed.

[0006] Preferably, the evaporator includes a refrigerant pipeline, and the refrigerant pipeline is coiled on the upper surface of the mold to form a cooling liquid pipe.

[0007] Preferably, the rotating structure includes a motor, which is connected to the ice maker control system signal, and controls the rotating shaft to rotate. The motor controls the opening and closing action of the opening and closing mechanism according to the ice making cycle.

[0008] Preferably, the fastening mechanism includes a torsion spring provided at a connection between the ice-making shelf and the opening and closing mechanism, and the torsion direction of the torsion spring enables the opening and closing mechanism to maintain a tight state against the ice-making shelf.

[0009] Preferably, the fastening structure on one side includes two movable connecting parts and one fixed connecting part, and the movable connecting part and the fixed connecting part are connected through the two ends of the movable connecting part. The connection between the movable connecting part and the fixed connecting part is provided with an axial hole for the installation of the torsion spring, and the torsion spring is installed inside the axial hole. The torsion spring exerts a torsional force on the ice-making rack and the opening and closing mechanism; the other end of the fixed connecting part is connected to the ice-making rack, and the other end of the movable connecting part is fixedly connected to the outer surface of the opening and closing mechanism.

[0010] Preferably, the fastening mechanism includes a tension spring; one end of the tension spring is connected to the ice-making rack, and the other end is connected to the opening and closing mechanism. The tension spring is tilted on a vertical plane to form an oblique pulling force on the ice-making rack and the opening and closing mechanism.

[0011] Preferably, the inclination angle of the tension spring to the horizontal plane is in the range of 30-60°; the ice-making rack is connected to the tension spring through a movable connecting piece; the movable connecting piece is arranged on the side of the ice-making rack through a rotating shaft, and the rotating shaft is controlled by a motor; the movable connecting piece is connected to one end of the tension spring through a connecting shaft, and the tension spring also has a degree of freedom of rotation with the connecting shaft as the axis at the connecting end.

[0012] Preferably, the opening and closing mechanism is installed on the side surface of the ice making rack, and an ice shedding guide structure is installed on the other side surface of the ice making rack. The upper surface of the ice shedding guide structure corresponds to the mold position, and the upper surface of the ice shedding guide structure is a curved surface.

[0013] Preferably, the ice-shedding guide structure is connected to the ice-making rack via a rotating shaft, and the motor synchronously controls the linkage action of the opening and closing mechanism and the ice-shedding guide structure.

[0014] Preferably, a sealing strip is provided at the connection between the opening and closing mechanism and the ice making rack.

[0015] (III) Beneficial effects: Compared with the prior art, the present invention provides an open-close large ice-shaped spray ice maker, which has the following beneficial effects: 1. This open-and-close large ice-shaped spray ice maker, through the cooperation of the opening and closing mechanism and the ice-making rack, allows the ice-making mold to be placed parallel to the horizontal plane, fundamentally solving the problem of uneven water injection caused by traditional inclined molds. The opening and closing mechanism is connected to the ice-making rack through a precise rotating shaft to form a stable kinematic pair, ensuring the accuracy and reliability of the opening and closing action. In the ice-making state, the joint surface of the two is completely sealed by a specially designed sealing structure, effectively preventing water leakage during the ice-making process. This coordination method also greatly simplifies the equipment structure and makes the overall layout more compact and reasonable. The linkage design of the opening and closing mechanism and the ice-making rack not only improves the ice-making efficiency, but also facilitates daily maintenance and cleaning, significantly extending the service life of the equipment. The water inlet on the upper surface of the opening and closing structure is connected to a water injection pipe, which is connected downward to the water tank. The position of the water inlet corresponds to the position of the mold, which can realize rapid water injection from the water tank. The ice-removing guide structure on the other side of the ice-making rack can provide a smooth buffer surface for large ice cubes when ice-removing is required, so that the ice cubes slowly enter the ice basket below to ensure the integrity of the ice cubes.

[0016] 2. This retractable, large-ice-shaped spray ice maker utilizes a tension spring structure for fastening. The angled mounting design of the tension spring creatively achieves automatic adjustment of the sealing pressure, ensuring both sufficient sealing force during ice making and smooth movement during ice removal. This structure avoids the uneven pressure experienced by traditional fixed sealing devices, ensuring consistent sealing across the mold. The elastic properties of the tension spring automatically compensate for dimensional changes caused by temperature fluctuations or mechanical wear, maintaining an optimal seal at all times. Compared to rigid connections, the tension spring structure offers improved impact resistance, effectively absorbing vibrations during operation, and improving overall stability. This design also features a simple structure and easy maintenance, significantly reducing operating costs.

[0017] 3. This open-and-close large ice-shaped spray ice maker utilizes a torsion spring structure for fastening. The torsion spring's unique torque characteristics provide uniform and stable closing pressure for the opening and closing mechanism, ensuring a reliable seal within the ice-making chamber. This structure cleverly utilizes the nonlinear force characteristics of the torsion spring, resulting in low resistance at the beginning of the opening and closing motion and gradually increasing pressure as the closed position is approached, perfectly matching the sealing requirements of the ice-making process. Compared to linear springs, torsion springs take up less space, making the device more compact. The torsion spring's carefully designed mounting method facilitates adjustment and maintenance, allowing for flexible adjustment of the preload according to actual usage. This structure also offers exceptional durability, maintaining stable performance over time and significantly reducing maintenance requirements. The torsion spring's automatic reset feature also simplifies the control system and improves device reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall installation of the structure of the present invention; Figure 2 This is a schematic diagram of the front view of the structure of the ice making assembly of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the ice-making assembly of the present invention; Figure 4 This is a schematic diagram of the internal structure of the opening and closing mechanism of the present invention; Figure 5 It is a schematic top view of the internal structure of the ice making assembly of the present invention; Figure 6 It is a partial structural diagram of the fastening mechanism of the present invention; Figure 7 A schematic diagram of the structure of a fastening mechanism in another embodiment of the present invention; Figure 8 It is a schematic diagram of the upper surface structure of the opening and closing mechanism of the present invention.

[0019] In the figure: 1. Ice-making assembly; 2. Ice basket; 3. Water tank; 4. Ice-making rack; 41. Mold; 5. Opening and closing mechanism; 51. Water inlet; 52. Water inlet pipe; 6. Evaporator; 61. Coolant pipe; 7. Rotating structure; 71. Rotating shaft; 72. Motor; 8. Fastening mechanism; 81. Torsion spring; 82. Fixed connector; 83. Movable connector; 84. Tension spring; 85. Connecting shaft; 9. Ice-shedding guide structure; 10. Sealing strip. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-5 , an open and close large ice-shaped spray ice maker, comprising an ice-making assembly 1, an ice basket 2 and a water tank 3. The water tank 3 is arranged at the lower end of the ice basket 2, and the ice-making assembly 1 is arranged at the upper end of the ice basket 2. The ice-making assembly 1 comprises an ice-making rack 4, an opening and closing mechanism 5 and an evaporator 6. A mold 41 with an opening placed downward is installed inside the ice-making rack 4. In actual use, an air hole should be opened on the bottom surface of the mold 41 for adjusting the balance of air pressure when water is injected into the mold 41. The outer surface of the ice-making rack 4 is connected with an opening and closing mechanism 5. The upper surface of the closing mechanism 5 is provided with a water inlet 51, and a water inlet pipe 52 is provided inside. One end of the water inlet pipe 52 extends to the outer surface of the opening and closing mechanism 5, and the other end is connected to the water inlet 51. The opening and closing mechanism 5 is connected to the ice-making rack 4 via a rotating structure 7. The rotating structure 7 includes a rotating shaft 71. The opening and closing mechanism 5 is rotatably connected to the ice-making rack 4 via the rotating shaft 71. The cooperation between the opening and closing mechanism 5 and the ice-making rack 4 fundamentally solves the problem of uneven water injection caused by the traditional tilting mold 41. The opening and closing mechanism 5 is connected to the ice-making rack 4 via the precise rotating shaft 71 to form a stable kinematic pair, ensuring the accuracy and reliability of the opening and closing action. In the ice-making state, the joint surface between the two is completely sealed by a specially designed sealing structure, effectively preventing water leakage during the ice-making process. When the ice maker is in the ice making state, the opening and closing mechanism 5 is sealed and engaged with the lower surface of the ice making rack 4, and the water injection port 51 corresponds to the position of the mold 41 to form a complete and sealed ice making cavity; the water injection pipe 52 is connected to the water tank 3 through the water supply pipe; fastening mechanisms 8 are provided at both ends of the opening and closing mechanism 5, and the fastening mechanisms 8 connect the opening and closing mechanism 5 and the ice making rack 4. When the opening and closing mechanism 5 and the ice making rack 4 are combined, the fastening mechanisms 8 press the two together, and the connection between the two is sealed. This cooperation method also greatly simplifies the equipment structure and makes the overall layout more compact and reasonable. The linkage design of the opening and closing mechanism 5 and the ice making rack 4 not only improves the ice making efficiency, but also facilitates daily maintenance and cleaning, and significantly extends the service life of the equipment; and the water injection port 51 on the upper surface of the opening and closing structure is connected to the water injection pipe 52, and the water injection pipe 52 is downwardly connected to the water tank 3. The position of the water injection port 51 corresponds to the position of the mold 41, which can realize rapid water injection from the water tank 3.

[0022] See also Figure 5 The evaporator 6 includes a refrigerant pipeline, which is coiled on the upper surface of the mold 41 to form a coolant pipe 61. The connection lines between the two ends of the coolant pipe 61 and the evaporator 6 are not drawn in the accompanying drawings. In actual use, the connecting pipes can be allocated according to the specific line connection conditions.

[0023] See also Figure 4The rotating structure 7 includes a motor 72, which is connected to the ice maker control system signal. The ice maker control system converts the working status of the ice maker at this time into an electrical signal and transmits it to the motor 72. The motor 72 controls the rotating shaft 71 to rotate. The motor 72 controls the opening and closing action of the opening and closing mechanism 5 according to the ice making cycle.

[0024] In one embodiment of the present invention, see Figure 6 The fastening mechanism 8 includes a tension spring 84. One end of the tension spring 84 is connected to the ice-making rack 4, and the other end is connected to the opening and closing mechanism 5. The tension spring 84 is tilted in a vertical plane, exerting a diagonal tension on the ice-making rack 4 and the opening and closing mechanism 5. During ice making, the diagonal force of the tension spring 84 is split into a horizontal force that compresses the mold 41 and a vertical force that provides auxiliary support. During ice removal, the tension spring 84 extends as the opening and closing side swings outward, and automatically retracts when the ice is released. The tilted mounting design of the tension spring 84 creatively achieves automatic adjustment of the sealing pressure, ensuring both sufficient sealing force for ice making and smooth operation of the mechanism during ice removal. This structure avoids the uneven pressure problem of traditional fixed sealing devices, ensuring consistent sealing across the mold 41. The elastic properties of the tension spring 84 automatically compensate for dimensional changes caused by temperature fluctuations or mechanical wear, maintaining an optimal seal at all times. Compared to rigid connection methods, the tension spring 84 structure offers improved shock resistance, effectively absorbing vibrations during operation, and improving overall stability. This design also has the characteristics of simple structure and easy maintenance, which greatly reduces the cost of use.

[0025] See also Figure 2 and Figure 6 The inclination angle of the tension spring 84 to the horizontal plane ranges from 30° to 60°; the ice making rack 4 is connected to the tension spring 84 through a movable connecting member 83; the movable connecting member 83 is set on the side of the ice making rack 4 through the rotating shaft 71, and the rotating shaft 71 is controlled by the motor 72; the movable connecting member 83 is connected to one end of the tension spring 84 through the connecting shaft 85, and the tension spring 84 also has a degree of rotational freedom with the connecting shaft 85 as the axis at the connection end with the movable connecting member 83.

[0026] In another embodiment of the present invention, see Figure 7 The fastening mechanism 8 includes a torsion spring 81 provided at the connection between the ice making shelf 4 and the opening and closing mechanism 5. The torsion direction of the torsion spring 81 keeps the opening and closing mechanism 5 pressed against the ice making shelf 4. When making ice, the rotational torque of the torsion spring 81 forces the opening and closing side to be pressed against the fixed side to form a seal; when removing ice, an external mechanism such as a motor 72 or a manual lever overcomes the force of the torsion spring 81 and pulls the opening and closing side open, and the torsion spring 81 stores energy for easy reset.

[0027] See also Figure 7The single-sided fastening structure includes two movable connectors 83 and a fixed connector 82. The movable connector 83 and the fixed connector 82 are connected by a single movable connector 83 at both ends. A axial hole is defined at the junction of the movable connector 83 and the fixed connector 82, where a torsion spring 81 is installed. The torsion spring 81 exerts a torsional force on the ice-making rack 4 and the opening and closing mechanism 5. The other end of the fixed connector 82 is connected to the ice-making rack 4, while the other end of the movable connector 83 is fixedly connected to the outer surface of the opening and closing mechanism 5. The torsion spring 81, through its unique torque characteristics, provides uniform and stable closing pressure for the opening and closing mechanism 5, ensuring a reliable seal within the ice-making chamber. This structure cleverly utilizes the nonlinear force characteristics of the torsion spring 81, resulting in low resistance at the initial stage of the opening and closing motion and gradually increasing pressure as the closed position is approached, perfectly matching the sealing requirements of the ice-making process. Compared to linear springs, the torsion spring 81 structure occupies less space, making the device more compact. The carefully designed mounting arrangement for torsion spring 81 facilitates adjustment and maintenance, allowing for flexible adjustment of the preload force based on actual usage. This structure also offers exceptional durability, ensuring consistent performance over time and significantly reducing maintenance requirements. The automatic reset feature of torsion spring 81 also simplifies the control system and improves equipment reliability.

[0028] In both embodiments, the tension spring 84 has a strong adjustable tension force and is more suitable for a large-sized mold 41, and the torsion spring 81 is more suitable for the interior of an ice maker that opens and closes frequently.

[0029] See also Figure 2 The opening and closing mechanism 5 is installed on the side surface of the ice making rack 4, and an ice shedding guide structure 9 is installed on the other side surface of the ice making rack 4. The upper surface of the ice shedding guide structure 9 corresponds to the position of the mold 41. The upper surface of the ice shedding guide structure 9 is a curved surface, which can achieve a buffering effect on the falling ice cubes; the ice shedding guide structure 9 is connected to the ice making rack 4 through the rotating shaft 71, and the motor 72 synchronously controls the linkage action of the opening and closing mechanism 5 and the ice shedding guide structure 9. In the ice shedding step, the upper surface of the ice shedding guide structure 9 is first located below the ice making rack 4. After the ice cubes fall on its upper surface, the rotating shaft 71 rotates to make the ice cubes slide along the curved surface into the ice basket 2 below to ensure the integrity of the ice cubes.

[0030] See also Figure 8 A sealing strip 10 is provided at the connection between the opening and closing mechanism 5 and the ice making rack 4 to ensure that the water inside the mold 41 does not overflow when making ice; in actual use, the shape of the sealing strip 10 can be changed according to the different ice cube molds 41 to be made.

[0031] In summary, the opening and closing type large ice-shaped spray type ice maker, through the cooperation of the opening and closing mechanism 5 and the ice making frame 4, the ice making mold 41 can be placed parallel to the horizontal plane, which fundamentally solves the problem of uneven water injection caused by the traditional inclined mold 41; and the water injection port 51 on the upper surface of the opening and closing structure is connected with the water injection pipe 52, the water injection pipe 52 is connected downward to the water tank 3, the position of the water injection port 51 corresponds to the position of the mold 41, and the rapid water injection from the water tank 3 can be realized; the ice removal guide structure 9 on the other side of the ice making frame 4 can provide a smooth buffer plane for large ice blocks when ice removal is needed, so that the ice blocks slowly enter the lower ice basket 2, ensuring the integrity of the ice blocks; the two embodiments in the application respectively adopt the tension spring 84 and the torsion spring 81, which can respectively adapt to the large ice making with large opening and closing and the ice maker internal structure with high frequency opening and closing.

[0032] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0033] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these 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. An openable large ice-shaped spray ice maker, comprising an ice-making assembly (1), an ice basket (2) and a water tank (3), wherein the water tank (3) is arranged at the lower end of the ice basket (2), and the ice-making assembly (1) is arranged at the upper end of the ice basket (2), characterized in that: The ice-making assembly (1) comprises an ice-making rack (4), an opening and closing mechanism (5) and an evaporator (6); a mold (41) with an opening placed downward is installed inside the ice-making rack (4); the outer surface of the ice-making rack (4) is connected to the opening and closing mechanism (5); a water injection port (51) is provided on the upper surface of the opening and closing mechanism (5); a water injection pipe (52) is provided inside the opening and closing mechanism; one end of the water injection pipe (52) extends to the outer surface of the opening and closing mechanism (5), and the other end is connected to the water injection port (51); the opening and closing mechanism (5) is connected to the ice-making rack (4) via a rotating structure (7); the rotating structure (7) comprises a rotating shaft (71); the opening and closing mechanism (5) is rotatably connected to the ice-making rack (4) via the rotating shaft (71); When the ice maker is in an ice-making state, the upper surface of the opening and closing mechanism (5) is sealed and engaged with the lower surface of the ice-making rack (4), and the water injection port (51) corresponds to the position of the mold (41), thereby forming a complete and sealed ice-making cavity; the water injection pipe (52) is connected to the water tank (3) through a water supply pipeline; fastening mechanisms (8) are provided at both ends of the opening and closing mechanism (5), and the fastening mechanisms (8) connect the opening and closing mechanism (5) and the ice-making rack (4); when the opening and closing mechanism (5) and the ice-making rack (4) are combined, the fastening mechanisms (8) press the two together, and the connection between the two is sealed.

2. The retractable large ice-shaped spray ice maker according to claim 1, characterized in that: The evaporator (6) includes a refrigerant pipeline, which is coiled on the upper surface of the mold (41) to form a cooling liquid pipe (61).

3. The retractable large ice-shaped spray ice maker according to claim 1, characterized in that: The rotating structure (7) includes a motor (72), the motor (72) is connected to the ice making machine control system signal, the motor (72) controls the rotating shaft (71) to achieve rotation, and the motor (72) controls the opening and closing action of the opening and closing mechanism (5) according to the ice making cycle.

4. The retractable large ice-shaped spray ice maker according to claim 1, characterized in that: The fastening mechanism (8) comprises a torsion spring (81) provided at the connection between the ice-making rack (4) and the opening and closing mechanism (5), and the torsion direction of the torsion spring (81) enables the opening and closing mechanism (5) to maintain a compressed state against the ice-making rack (4).

5. The retractable large ice-shaped spray ice maker according to claim 4, characterized in that: The single-sided fastening structure includes two movable connecting members (83) and a fixed connecting member (82), wherein the movable connecting member (83) and the fixed connecting member (82) are connected via two ends of the movable connecting member (83), and a shaft hole for installing the torsion spring (81) is provided at the connection between the movable connecting member (83) and the fixed connecting member (82), and the torsion spring (81) is installed inside the shaft hole. The torsion spring (81) exerts a torsion force on the ice-making rack (4) and the opening and closing mechanism (5); the other end of the fixed connecting member (82) is connected to the ice-making rack (4), and the other end of the movable connecting member (83) is fixedly connected to the outer surface of the opening and closing mechanism (5).

6. The retractable large ice-shaped spray ice maker according to claim 1, characterized in that: The fastening mechanism (8) includes a tension spring (84); one end of the tension spring (84) is connected to the ice-making rack (4), and the other end is connected to the opening and closing mechanism (5); the tension spring (84) is tilted on a vertical plane to form an oblique pulling force on the ice-making rack (4) and the opening and closing mechanism (5).

7. The retractable large ice-shaped spray ice maker according to claim 6, characterized in that: The inclination angle of the tension spring (84) relative to the horizontal plane ranges from 30° to 60°; the ice-making rack (4) is connected to the tension spring (84) via a movable connecting member (83); the movable connecting member (83) is arranged on the side of the ice-making rack (4) via a rotating shaft (71), and the rotating shaft (71) is controlled by a motor (72); the movable connecting member (83) is connected to one end of the tension spring (84) via a connecting shaft (85), and the tension spring (84) also has a degree of freedom of rotation with the connecting shaft (85) as the axis at the connecting end.

8. The retractable large ice-shaped spray ice maker according to any one of claims 1 to 7, characterized in that: The opening and closing mechanism (5) is installed on the side surface of the ice making rack (4), and an ice shedding guide structure (9) is installed on the other side surface of the ice making rack (4). The upper surface of the ice shedding guide structure (9) corresponds to the position of the mold (41), and the upper surface of the ice shedding guide structure (9) is a curved surface.

9. The retractable large ice-shaped spray ice maker according to claim 8, characterized in that: The ice-shedding guide structure (9) is connected to the ice-making rack (4) via a rotating shaft (71), and the motor (72) synchronously controls the linkage action of the opening and closing mechanism (5) and the ice-shedding guide structure (9).

10. The retractable large ice-shaped spray ice maker according to any one of claims 1 to 7, characterized in that: A sealing strip (10) is provided at the connection between the opening and closing mechanism (5) and the ice making rack (4).

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