Evaporator sealing structure and snowflake ice maker

Abstract

The evaporator sealing structure comprises an evaporator shell, the evaporator shell is arranged in an evaporator installation cavity of a machine body, and the two ends of the evaporator shell are connected with the inner side walls of the two sides of the evaporator installation cavity in a sealed mode through multiple sealing rings respectively. The rotating shaft parts at the two ends of the evaporator shell respectively penetrate through the multiple sealing rings and the inner side wall of the evaporator mounting cavity in sequence to be connected with the connecting device; the multiple sealing rings comprise first sealing rings, at least one second sealing ring is arranged on each first sealing ring, the first sealing rings are fixedly installed at the two ends of the evaporator shell respectively, and the first sealing rings and the second sealing rings are both connected with the inner side wall of the evaporator installation cavity in a sealed mode. The contact area of the evaporator shell and water can be increased to the maximum extent or the occupied volume of the evaporator can be reduced under the same condition, so that the ice making efficiency is improved or the volume of a machine body is reduced; and the arranged evaporator sealing structure can achieve multiple rotary sealing performance, and the sealing effect is good.

Description

Technical Field

[0001] This utility model relates to the field of cold drink machine technology, and in particular to an evaporator sealing structure and a snow ice machine. Background Technology

[0002] A shaved ice machine is a device used to rapidly freeze liquid into ice and scrape the ice into shaved ice that can be eaten immediately. When the machine is working, its evaporator rotates while its surface remains at a low temperature. When the evaporator comes into contact with water, a thin layer of ice forms on its outer surface, which is then scraped out by an ice scraper at the front of the evaporator. Currently, the evaporator shell has outwardly extending shafts at both ends, which are sealed to the corresponding inner walls of the machine body. However, this leaves a large gap between the evaporator and the inner walls. This evaporator structure reduces the contact area between the outer shell and water under the same conditions, or increases the overall volume of the evaporator, thus reducing ice-making efficiency or increasing the machine's size and production costs. Simultaneously, an O-ring seal is used to seal the shafts to the inner walls to prevent external water, ice fragments, or impurities from entering the machine. However, under the continuous operation of the evaporator, the sealing performance achieved solely by the O-ring seal is weak and inadequate. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an evaporator sealing structure and a snow ice machine, which can maximize the contact area between the evaporator shell and water or reduce the volume occupied by the evaporator under the same conditions, thereby improving ice-making efficiency or reducing the size of the machine body; moreover, the evaporator sealing structure can achieve multiple rotational sealing performance and has a good sealing effect.

[0004] To solve the above-mentioned technical problems, this utility model provides an evaporator sealing structure, including an evaporator shell, which is disposed in the evaporator mounting cavity of the machine body. The two ends of the evaporator shell are respectively sealed to the inner sidewalls of the two sides of the evaporator mounting cavity through multiple sealing rings. The rotating shafts at both ends of the evaporator shell pass through the multiple sealing rings and the inner sidewalls of the evaporator mounting cavity in sequence and are connected to connecting devices. The multiple sealing rings include a first sealing ring and at least one second sealing ring. The first sealing ring is fixedly installed on both ends of the evaporator shell, and both the first sealing ring and the second sealing ring are sealed to the inner sidewalls of the evaporator mounting cavity.

[0005] As an improvement to the above solution, the first sealing ring is snapped onto the evaporator housing, and the first sealing ring and the second sealing ring are an integrated structure.

[0006] As an improvement to the above solution, the inner walls on both sides of the evaporator mounting cavity are respectively provided with rotating grooves, and the rotating grooves are provided with through holes communicating with them. The rotating shaft of the evaporator shell passes through the multiple sealing rings, the rotating grooves and the through holes in sequence and is connected to the connecting device. The middle part of the first sealing ring is provided with a second sealing ring extending towards the rotating groove. The first sealing ring is sealed and connected to the inner wall of the evaporator mounting cavity, and the second sealing ring is embedded in the rotating groove and sealed and connected to the rotating groove.

[0007] As an improvement to the above solution, a first annular snap-fit ​​portion is provided on the outer circumference of the first sealing ring, and an annular snap block is provided on the inner circumference of the first sealing ring; a second annular snap-fit ​​portion adapted to the first annular snap-fit ​​portion is provided at both ends of the evaporator shell, and the second annular snap-fit ​​portion is engaged with the first annular snap-fit ​​portion; an annular groove adapted to the annular snap block is provided on the rotating shaft portion, and the annular snap block is engaged with the annular groove.

[0008] As an improvement to the above solution, the first sealing ring is provided with an annular groove, and the inner wall of the evaporator mounting cavity is provided with an annular protrusion that matches the annular groove. The annular protrusion is embedded in the annular groove and the two are sealed and abutted together.

[0009] As an improvement to the above solution, the second sealing ring is provided with an outwardly extending annular abutment portion, which abuts against the inner wall of the rotating groove.

[0010] As an improvement to the above solution, the cross-sections of both the first annular buckle portion and the second annular buckle portion are L-shaped or hook-shaped.

[0011] As an improvement to the above solution, the first sealing ring is provided with a clearance groove between the annular groove and the second sealing ring, and the opening of the clearance groove faces the inner wall of the evaporator mounting cavity.

[0012] As an improvement to the above solution, the cross-section of the end of the annular abutment near the inner wall of the rotating groove is arc-shaped.

[0013] This utility model also provides a shaved ice machine, including a body, wherein the body is provided with an evaporator mounting cavity, and the evaporator mounting cavity is provided with the above-mentioned evaporator sealing structure.

[0014] The beneficial effects of implementing this utility model are as follows:

[0015] The evaporator shell of this invention has multiple sealing rings sealingly connected to the inner wall of the evaporator mounting cavity at both ends. There are no gaps between the evaporator shell and the corresponding inner wall. Under the same conditions, this maximizes the contact area between the evaporator shell and water or reduces the volume occupied by the evaporator, thereby improving ice-making efficiency or reducing the overall size and production costs. Simultaneously, the multiple sealing rings that rotate with the evaporator shell provide multiple rotary sealing effects, improving rotary sealing performance and resulting in excellent sealing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the evaporator sealing structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the evaporator shell and multiple sealing rings of this utility model;

[0018] Figure 3 This is an exploded structural diagram of the evaporator shell and multiple sealing rings of this utility model;

[0019] Figure 4 yes Figure 1 A magnified structural diagram of part A;

[0020] Figure 5 This is a structural schematic diagram of the snow ice machine of this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 2 As shown in the figure, a specific embodiment of this utility model provides an evaporator sealing structure, including an evaporator housing 1. The evaporator housing 1 is disposed in the evaporator mounting cavity 3 of the body 2. Both ends of the evaporator housing 1 are sealed to the inner sidewalls of the evaporator mounting cavity 3 on both sides by multiple sealing rings 4. The rotating shafts 5 at both ends of the evaporator housing 1 pass through the multiple sealing rings 4 and the inner sidewalls of the evaporator mounting cavity 3 in sequence and are connected to connecting devices 6. For example, one rotating shaft 5 is connected to a bearing, and the other rotating shaft 5 is connected to the transmission component of a drive device. The drive device can drive the evaporator housing 1 to rotate. There is no gap between the evaporator housing 1 and the corresponding inner sidewall. Under the same conditions, it can maximize the contact area between the evaporator housing 1 and water or reduce the volume occupied by the evaporator, thereby improving ice-making efficiency or reducing the volume of the body 2 and reducing production costs.

[0023] The multiple sealing rings 4 include a first sealing ring 41, on which a second sealing ring 42 is provided. The first sealing ring 41 is fixedly installed on both ends of the evaporator housing 1, that is, the first sealing ring 41 or the multiple sealing rings 4 are fixedly connected to the evaporator housing 1, and the evaporator housing 1 and the sealing structure can rotate together. The first sealing ring 41 and the second sealing ring 42 are both sealed to the inner wall of the evaporator mounting cavity 3. When the evaporator housing 1 rotates, the synchronously rotating multiple sealing rings 4 can play a multiple rotational sealing role, improve the rotational sealing performance, and have a good sealing effect. This can effectively prevent external substances from entering the gaps in the body 2 and avoid bacterial accumulation.

[0024] Furthermore, the first sealing ring 41 is snap-fitted onto the evaporator housing 1, allowing for easy disassembly and installation of the first sealing ring 41 onto the evaporator housing 1, resulting in high disassembly and installation efficiency. The first sealing ring 41 and the second sealing ring 42 are an integrated structure, which improves the sealing effect, simplifies the sealing installation structure, and increases disassembly and installation efficiency.

[0025] Specifically, such as Figures 1 to 4 As shown, the outer circumference of the first sealing ring 41 is provided with a first annular snap-fit ​​portion 411, and the inner circumference of the first sealing ring 41 is provided with an annular snap-fit ​​block 412; the two end faces of the evaporator shell 1 are respectively provided with second annular snap-fit ​​portions 11 that are adapted to the first annular snap-fit ​​portion 411, and the second annular snap-fit ​​portion 11 is engaged with the first annular snap-fit ​​portion 411 and a sealing connection is formed between the two. The rotating shaft portion 5 is provided with an annular groove 51 that is adapted to the annular snap-fit ​​block 412, and the annular snap-fit ​​block 412 is engaged with the annular groove 51. When the first sealing ring 41 needs to be installed, it can be first put on the rotating shaft 5 and positioned and engaged with the annular groove 51 by the annular locking block 412, which plays an initial positioning and fixing role and an internal sealing role. Then, it is fixed by the first annular buckle part 411 and the second annular buckle part 11, which plays an external sealing role. Thus, the first sealing ring 41 is fixed on the evaporator shell 1 and a sealed connection is formed between the two. The sealing effect is better and can effectively prevent external substances from entering between the first sealing ring 41 and the evaporator shell 1, avoid bacterial accumulation, and maintain a safe and hygienic operating environment.

[0026] The cross-sections of the first annular snap-fit ​​part 411 and the second annular snap-fit ​​part 11 are preferably L-shaped or hook-shaped, but not limited thereto; the mating connection between the first annular snap-fit ​​part 411 and the second annular snap-fit ​​part 11 can significantly improve the sealing connection effect between the two and prevent external impurities from seeping in.

[0027] To achieve a multi-layered sealing effect between the evaporator shell 1 and its corresponding inner wall, such as Figure 1 , Figure 3 and Figure 4 As shown, the inner walls on both sides of the evaporator mounting cavity 3 are respectively provided with rotating grooves 31, and the rotating grooves 31 are provided with through holes 32 communicating with them. The rotating shaft 5 of the evaporator shell 1 passes through the multiple sealing rings 4, the rotating grooves 31 and the through holes 32 in sequence and is connected to the connecting device. The middle of the first sealing ring 41 is provided with a second sealing ring 42 extending towards the rotating groove 31. The first sealing ring 41 is sealed to the inner wall of the evaporator mounting cavity 3 to achieve a first-level rotating sealing effect. The second sealing ring 42 is embedded in the rotating groove 31 and sealed to the rotating groove 31 to achieve a second-level rotating sealing effect, thereby realizing a multiple sealing effect between the evaporator shell 1 and the corresponding inner wall and improving the sealing performance between them.

[0028] Furthermore, the first sealing ring 41 is provided with an annular groove 413, and the inner wall of the evaporator mounting cavity 3 is provided with an annular protrusion 33 that is adapted to the annular groove 413. The annular protrusion 33 is embedded in the annular groove 413 and the two are sealed and abutted together. On the one hand, it can enhance the sealing effect, and on the other hand, it can facilitate the relative rotation of the first sealing ring 41 on the inner wall of the evaporator mounting cavity 3, thereby improving the rotation effect.

[0029] Meanwhile, the second sealing ring 42 is provided with an outwardly extending annular abutment portion 421, which abuts against the inner wall of the rotating groove 31. This reduces the contact area between the second sealing ring 42 and the inner wall of the rotating groove 31 while maintaining a sealed connection, thereby reducing rotational friction. Preferably, the cross-section of the end of the annular abutment portion 421 closest to the inner wall of the rotating groove 31 is arc-shaped, but this is not a limitation. This annular abutment portion 421 further reduces the contact area between the two, lowers rotational friction, and improves the rotational performance of the sealing structure.

[0030] Preferably, the first sealing ring 41 is provided with a relief groove 43 between the annular groove 413 and the second sealing ring 42. The groove opening of the relief groove 43 faces the inner wall of the evaporator mounting cavity 3. The relief groove 43 is provided to reduce the contact area between the sealing structure and the inner wall, reduce wear and rotational friction, thereby facilitating the rotation of the evaporator shell 1 and the sealing structure.

[0031] like Figure 5As shown in the figure, a specific embodiment of this utility model also provides a shaved ice machine, including a body 2, wherein an evaporator mounting cavity 3 is provided in the body 2, and the evaporator mounting cavity 3 is provided with the aforementioned evaporator sealing structure 7. Since the aforementioned evaporator sealing structure has the above-mentioned technical effects, the shaved ice machine including the evaporator sealing structure should also have the above-mentioned technical effects, and will not be described in detail here.

[0032] In summary, the two ends of the evaporator shell of this invention are sealed to the inner wall of the evaporator mounting cavity via multiple sealing rings, resulting in no gaps between the evaporator shell and the corresponding inner wall. Under the same conditions, this maximizes the contact area between the evaporator shell and water or reduces the volume occupied by the evaporator, thereby improving ice-making efficiency or reducing the overall size and production costs. Furthermore, the multiple sealing rings that rotate with the evaporator shell provide multiple rotary sealing effects, improving rotary sealing performance and resulting in excellent sealing.

[0033] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. An evaporator sealing structure, characterized in that, The device includes an evaporator housing, which is disposed in the evaporator mounting cavity of the machine body. Both ends of the evaporator housing are respectively sealed to the inner sidewalls on both sides of the evaporator mounting cavity through multiple sealing rings. The rotating shafts at both ends of the evaporator housing pass through the multiple sealing rings and the inner sidewalls of the evaporator mounting cavity in sequence and are connected to the connecting device. The multiple sealing rings include a first sealing ring, and at least one second sealing ring is provided on the first sealing ring. The first sealing ring is fixedly installed on both ends of the evaporator shell, and both the first sealing ring and the second sealing ring are sealed to the inner wall of the evaporator mounting cavity.

2. The evaporator sealing structure as described in claim 1, characterized in that, The first sealing ring is snapped onto the evaporator housing, and the first sealing ring and the second sealing ring are an integrated structure.

3. The evaporator sealing structure as described in claim 1, characterized in that, The inner walls on both sides of the evaporator mounting cavity are respectively provided with rotating grooves, and the rotating grooves are provided with through holes communicating with them. The rotating shaft of the evaporator shell passes through the multiple sealing rings, the rotating grooves and the through holes in sequence and is connected to the connecting device. The first sealing ring has a second sealing ring extending toward the rotating groove at its center. The first sealing ring is sealed to the inner wall of the evaporator mounting cavity, and the second sealing ring is embedded in the rotating groove and sealed to the rotating groove.

4. The evaporator sealing structure as described in claim 2, characterized in that, The first sealing ring has a first annular snap-fit ​​part on its outer circumference and an annular snap-fit ​​block on its inner circumference. The evaporator housing is provided with a second annular snap-fit ​​part at each end, which is adapted to the first annular snap-fit ​​part. The second annular snap-fit ​​part is engaged with the first annular snap-fit ​​part. The rotating shaft is provided with an annular groove that is adapted to the annular locking block, and the annular locking block is engaged with the annular locking groove.

5. The evaporator sealing structure as described in claim 3, characterized in that, The first sealing ring is provided with an annular groove, and the inner wall of the evaporator mounting cavity is provided with an annular protrusion that matches the annular groove. The annular protrusion is embedded in the annular groove and the two are sealed and abutted together.

6. The evaporator sealing structure as described in claim 3, characterized in that, The second sealing ring is provided with an outwardly extending annular abutment portion, which abuts against the inner wall of the rotating groove.

7. The evaporator sealing structure as described in claim 4, characterized in that, Both the first annular buckle portion and the second annular buckle portion have an L-shaped or hook-shaped cross-section.

8. The evaporator sealing structure as described in claim 5, characterized in that, The first sealing ring has a clearance groove between the annular groove and the second sealing ring, and the opening of the clearance groove faces the inner wall of the evaporator mounting cavity.

9. The evaporator sealing structure as described in claim 6, characterized in that, The cross-section of the annular abutment portion near the inner wall of the rotating groove is arc-shaped.

10. A shaved ice machine, characterized in that, The device includes a body, wherein an evaporator mounting cavity is provided in the body, and the evaporator mounting cavity is provided with an evaporator sealing structure as described in any one of claims 1 to 9.

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