Reliably sealed refrigerant connecting structure and snowflake ice maker

Abstract

The utility model relates to the field of ice makers, in particular to a reliably sealed refrigerant connecting structure and a snowflake ice maker using the same, which comprises an evaporator, a driving shaft, a mounting seat, a driven shaft and a refrigerant pipeline, one end of the refrigerant pipeline is sleeved in the mounting seat, one end of the mounting seat is mounted on one side of the evaporator, and the other end of the mounting seat is mounted on the other side of the evaporator. The refrigerant pipeline is communicated with the evaporator, the other end of the installation base is sleeved with the driven shaft, the outer surface of the driven shaft is sleeved with a bearing and a first sealing base, and a hollow nut is installed on the outer surface of the refrigerant pipeline on the other side, away from the evaporator, of the driven shaft. And a second sealing seat is sleeved on the outer surfaces of the driven shaft, the bearing, the first sealing seat and the hollow nut. According to the utility model, the connection sealing performance of a refrigerant running between the evaporator and the refrigeration unit is greatly improved, and the snow making effect is ensured.

Description

Technical Field

[0001] The utility model relates to the field of ice making machines, in particular to a reliably sealed refrigerant connection structure and a flake ice machine using the connection structure. Background Art

[0002] A flake ice machine is a device that rapidly freezes the liquid on the evaporator into ice and then scrapes it with a blade to create fine flake ice. Common flake ice machines consist of two main units: a refrigeration unit and a snowmaking unit. The snowmaking unit typically includes a liquid bottle, a liquid feed device, a drive motor, an evaporator, and a scraper. The evaporator is driven by a drive motor to rotate, freezing any liquid dripping onto the outer wall into ice. The refrigeration unit inputs high-temperature, high-pressure refrigerant into the evaporator via the refrigerant inlet line, which is then transported back to the refrigeration compressor via the refrigerant return line. The drastic change in the evaporator's internal thermodynamic conditions causes the outer surface temperature of the evaporator cylinder to rapidly drop to below -30°C, causing the liquid to quickly freeze on the surface of the cylindrical evaporator.

[0003] Since the refrigerant runs between the cylindrical evaporator and the refrigeration unit, in order to ensure the snow-making effect, the sealing of the refrigerant connection structure must be ensured, but the refrigerant connection structure of the snow flake ice machine in the prior art is not sufficiently sealed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a refrigerant connection structure and a snowflake ice machine using the connection structure, so as to improve the sealing performance of the refrigerant connection structure and ensure the snow-making effect.

[0005] To achieve the above objectives, the present invention can be implemented through the following technical solutions:

[0006] A reliably sealed refrigerant connection structure includes an evaporator, a driving shaft, a mounting seat, a driven shaft and a refrigerant pipeline, one end of the refrigerant pipeline is sleeved into the mounting seat, one end of the mounting seat is installed on one side of the evaporator, the refrigerant pipeline is connected to the evaporator, the other end of the mounting seat is sleeved into the driven shaft, the outer surface of the driven shaft is sleeved with a bearing and a first sealing seat, a hollow nut is installed on the outer surface of the refrigerant pipeline on the other side of the driven shaft away from the evaporator, and a second sealing seat is sleeved on the outer surfaces of the driven shaft, the bearing, the first sealing seat and the hollow nut.

[0007] Furthermore, a sealing member is nested between the outer surface of the mounting seat and the driven shaft.

[0008] Furthermore, retaining springs are respectively installed at the front and rear ends of the bearing in the axial direction.

[0009] Further, the second sealing seat comprises a sealing seat A, a sealing seat B and a sealing seat C, the sealing seat A is sleeved on the outer surface of one side of the driven shaft, the bearing and the first sealing seat, the sealing seat B is sleeved on the outer surface of the other side of the first sealing seat, and the sealing seat C is sleeved on the outer surface of the hollow nut.

[0010] Further, the sealing seat A, the sealing seat B and the sealing seat C are embedded with sealing pieces between each other.

[0011] Further, the sealing seat A, the sealing seat B and the sealing seat C are embedded with sealing pieces between each other.

[0012] Further, the refrigerant pipeline comprises a refrigerant gas inlet pipeline and a refrigerant gas return pipeline, the pipe diameter of the refrigerant gas inlet pipeline is smaller than that of the refrigerant gas return pipeline, the refrigerant gas inlet pipeline penetrates into the inside of the refrigerant gas return pipeline, and the end of the refrigerant gas inlet pipeline entering the evaporator is bent by 90 degrees.

[0013] Further, the evaporator comprises a drum pipe and sealing plates arranged on the left and right sides of the drum pipe, a tool groove is processed on the outer periphery of the drum pipe, the inside of the left and right sides of the drum pipe is respectively provided with a first step, the left and right sides of the sealing plate are matched and sealed with the first steps, and the driving shaft and the mounting seat are respectively mounted on the left and right sealing plates.

[0014] Further, the mounting seat is provided with a second step at the connection position of the mounting seat and the driven shaft, the driven shaft is connected with the mounting seat through the second step, and the end, where the driven shaft is connected with the mounting seat, is provided with a smooth chamfer.

[0015] A snow ice machine comprises the refrigerant connection structure, the driving shaft is fixedly connected with the driving shaft of the driving motor, and the other end of the refrigerant pipeline is connected with a refrigeration compressor.

[0016] Compared with the prior art, the refrigerant connection structure and the snow ice machine have the following beneficial effects:

[0017] The refrigerant connection structure and the snow ice machine have the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1It is the structure schematic view of the refrigerant connecting structure of the utility model;

[0019] Figure 2 It is Figure 1 It is the enlarged structure schematic view of A in the middle;

[0020] Figure 3 It is the refrigerant connecting structure schematic view of the utility model;

[0021] Figure 4 It is the structure schematic view of the snowflake ice machine of the utility model;

[0022] In the drawing: 1, evaporator; 101, drum round pipe; 102, sealing plate; 103, first step; 2, driving shaft; 3, mounting seat; 4, driven shaft; 5, refrigerant pipeline; 51, refrigerant air inlet pipeline; 52, refrigerant air return pipeline; 6, bearing; 7, first sealing seat; 8, hollow nut; 9, second sealing seat; 91, sealing seat A; 92, sealing seat B; 93, sealing seat C; 10, sealing element; 11, circlip; 12, second step; 13, smooth chamfer; 14, driving motor; 15, refrigeration compressor. DETAILED DESCRIPTION

[0023] The utility model will be further explained in combination with the drawings and specific embodiment. The terms such as "upper", "inner", "middle", "left", "right" and "one" cited in this specification are only for the convenience of clear understanding of the description, and not for limiting the scope of the utility model that can be implemented, and the change or adjustment of relative relationship is also regarded as the scope of the utility model that can be implemented without substantial change of technical content.

[0024] As Figures 1-3 The utility model discloses a reliable sealing's refrigerant connecting structure, including evaporator 1, driving shaft 2, mounting seat 3, driven shaft 4 and refrigerant pipeline 5, one end of refrigerant pipeline 5 is sleeved in mounting seat 3, one end of mounting seat 3 is installed on one side of evaporator 1, makes refrigerant pipeline 5 and evaporator 1 communicate, the other end of mounting seat 3 is sleeved in driven shaft 4, the outer surface of driven shaft 4 is sleeved with bearing 6 and first sealing seat 7, and hollow nut 8 is installed on the outer surface of refrigerant pipeline 5 on the other side of driven shaft 4 away from evaporator 1 and is welded sealing, and second sealing seat 9 is sleeved on the outer surface of driven shaft 4, bearing 6, first sealing seat 7 and hollow nut 8. The sealing seat adopts double-layer U type sealing ring or skeleton oil seal, and the oil seal size is not less than φ26* φ18* t5, preferably U type sealing ring, so that the sealing effect is better, and the sealing service life is longer.

[0025] To further strengthen the sealing effect, the outer surface of mounting seat 3 and driven shaft 4 are nested with sealing element 10, and sealing element 10 uses two O type sealing rings, and adopts double-layer sealing structure to reliably guarantee the sealing effect.

[0026] Further, the bearing 6 is axially positioned by clamping springs 11 installed at the front and back ends of the bearing 6, to prevent the bearing 6 from moving in the axial direction.

[0027] Further, the second sealing seat 9 includes a sealing seat A 91, a sealing seat B 92 and a sealing seat C 93. The sealing seat A 91 is sleeved on the outer surface of one side of the driven shaft 4, the bearing 6 and the first sealing seat 7. The sealing seat B 92 is sleeved on the outer surface of the other side of the first sealing seat 7. The sealing seat C 93 is sleeved on the outer surface of the hollow nut 8. In order to ensure the sealing effect, the sealing seat A 91, the sealing seat B 92 and the sealing seat C 93 are embedded with sealing members 10 between each other. The sealing seat A 91, the sealing seat B 92 and the sealing seat C 93 are fixed on the frame by bolts.

[0028] In order to ensure the sealing effect, the outer surface of the hollow nut 8 and the sealing seat C 93 are embedded with sealing members 10.

[0029] In the embodiment, the refrigerant pipeline 5 includes a refrigerant inlet pipeline 51 and a refrigerant return pipeline 52. The refrigerant inlet pipeline 51 is used for inputting high-temperature and high-pressure refrigerant into the cylindrical evaporator 1, and is preferably a capillary copper pipe. The refrigerant return pipeline 52 is used for returning the gas that has been expanded and absorbed heat, and is preferably a copper pipe. The pipe diameter of the refrigerant inlet pipeline 51 is smaller than that of the refrigerant return pipeline 52. The refrigerant inlet pipeline 51 penetrates into the inside of the refrigerant return pipeline 52. The end of the refrigerant inlet pipeline 51 entering the evaporator 1 is bent by 90 degrees, so that the compressed refrigerant can be better diffused to achieve the effect of absorbing heat to form ice.

[0030] In the embodiment, the evaporator 1 includes a cylindrical pipe 101 and sealing plates 102 arranged on the left and right sides of the cylindrical pipe 101. The outer periphery of the cylindrical pipe 101 is processed with a turning groove. The turning groove can increase the refrigeration contact area and friction, so that the ice on the cylindrical evaporator 1 is not easy to slide, and the snowflake effect is better. The inside of the left and right sides of the cylindrical pipe 101 is respectively provided with a first step 103. The left and right sides of the sealing plates 102 are sealed with the first steps 103, so that the left and right sealing plates 102 are embedded on the first steps 103, to ensure the initial concentricity and the welding sealing effect. The driving shaft 2 and the mounting seat 3 are respectively installed on the left and right sealing plates 102, so that the welding position does not need to be turned, to prevent the cylindrical evaporator 1 from leaking in the turning process.

[0031] Further, the mounting seat 3 is provided with a second step 12 at the connection position with the driven shaft 4. The one end of the driven shaft 4 connected with the mounting seat 3 is provided with a smooth chamfer 13, to prevent the sealing member 10 from being damaged during installation.

[0032] A snowflake ice machine includes any of the above refrigerant connection structures, such as Figures 3-4As shown, the main shaft 2 is fixedly connected with a driving shaft of the driving motor 14, and the other end of the refrigerant pipeline 5 is connected with the refrigeration compressor 15. Other structures of the snowflake ice machine, such as a liquid bottle, a liquid feeding device, a scraper, a transmission assembly and the like, are prior art and will not be described here.

[0033] The embodiments of the utility model are not limited to this, according to the above content of the utility model, using the ordinary technical knowledge and usual means in the art, under the premise of not departing from the above basic technical thought of the utility model, the utility model can also make other various forms of modification, replacement or combination, all fall within the scope of protection of the utility model.

Claims

1. A reliable sealed refrigerant connection structure comprising an evaporator, a driving shaft, a mounting seat, a driven shaft and a refrigerant line, characterized in that: One end of the refrigerant pipeline is sleeved in the mounting seat, one end of the mounting seat is mounted on one side of the evaporator, the refrigerant pipeline communicates with the evaporator, the other end of the mounting seat is sleeved in the driven shaft, the outer surface of the driven shaft is sleeved with a bearing and a first sealing seat, a hollow nut is mounted on the outer surface of the driven shaft away from the other side of the evaporator, a second sealing seat is sleeved on the outer surfaces of the driven shaft, the bearing, the first sealing seat and the hollow nut, the evaporator comprises a drum pipe and sealing plates arranged on the left and right sides of the drum pipe, a turning tool groove is formed on the outer circumferential surface of the drum pipe, the left and right sides of the drum pipe are each provided with a first step, the two sides of the sealing plate are sealed in cooperation with the first steps, and the driving shaft and the mounting seat are respectively mounted on the left and right sealing plates.

2. The reliably sealed refrigerant connection structure of claim 1, wherein: A sealing element is nested between the outer surface of the mounting seat and the driven shaft.

3. The reliably sealed refrigerant connection structure of claim 1, wherein: The bearing is respectively provided with a snap spring at the front and rear ends in the axial direction.

4. The reliably sealed refrigerant connection structure of claim 1, wherein: The second sealing seat comprises a sealing seat A, a sealing seat B and a sealing seat C, the sealing seat A is sleeved on the outer surface of one side of the driven shaft, the bearing and the first sealing seat, the sealing seat B is sleeved on the outer surface of the other side of the first sealing seat, and the sealing seat C is sleeved on the outer surface of the hollow nut.

5. The reliably sealed refrigerant connection structure of claim 4, wherein: Sealing elements are embedded between the sealing seat A, the sealing seat B and the sealing seat C.

6. The reliably sealed refrigerant connection structure of claim 4, wherein: A sealing element is embedded between the outer surface of the hollow nut and the sealing seat C.

7. The reliably sealed refrigerant connection structure of claim 1, wherein: The refrigerant pipeline comprises a refrigerant gas inlet pipeline and a refrigerant gas return pipeline, the pipe diameter of the refrigerant gas inlet pipeline is smaller than that of the refrigerant gas return pipeline, the refrigerant gas inlet pipeline penetrates into the inside of the refrigerant gas return pipeline, and the end of the refrigerant gas inlet pipeline entering the evaporator is bent by 90 degrees.

8. The reliably sealed refrigerant connection structure of claim 1, wherein: A second step is arranged at the connection between the mounting seat and the driven shaft, the driven shaft and the mounting seat are connected through the second step, and one end of the driven shaft connected with the mounting seat is provided with a smooth chamfer.

9. A snow cone machine characterized by: The refrigerant connection structure comprises the refrigerant connection structure according to any one of claims 1-8, the driving shaft of the driving motor is fixedly connected with the driving shaft, and the other end of the refrigerant pipeline is connected with a refrigeration compressor.

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