Improved smoothie ice maker

Abstract

The utility model discloses an improved smoothie ice maker which comprises a shell, an upper end cover, a lower end cover, a rotating shaft and a spiral scraping blade, the shell comprises an outer cylinder, a middle cylinder and an inner cylinder which are sequentially arranged in the radial direction, a refrigeration cavity is formed between the middle cylinder and the inner cylinder, an ice making cavity is formed by an inner cavity of the inner cylinder, a spiral guide plate is arranged in the refrigeration cavity, and the spiral guide plate is connected with the rotating shaft. A lug boss is arranged in the refrigeration cavity or the screw pitch space; the screw is characterized in that the section of each protruding part is of a U-shaped structure, and a plurality of protruding parts which are annularly arranged are arranged in each screw pitch space; and in the axial direction of the rotating shaft, from the upstream end to the downstream end of refrigerant flowing, the radial height of the protruding part is gradually reduced in each screw pitch space. According to the utility model, the heat exchange uniformity when the refrigerant flows can be improved, so that the heat exchange efficiency of the refrigerant can be further improved, and the production efficiency of smoothie / ice slurry can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ice making machines, in particular to an improved smoothie ice making machine. Background Art

[0002] Existing ice machines, for example, the prior art CN108332465A discloses a turbulent vortex type fluid ice machine, CN108645085A discloses a scraper assembly and ice making for an ice machine evaporator, CN207831749U discloses a high-efficiency ice smoothie maker, and CN208398444U discloses a scraper assembly and ice machine evaporator for an ice machine evaporator. A plurality of annular protrusions are arranged in sequence along the axial direction on the outer wall of the heat-conducting inner cylinder, and each annular protrusion is arranged in an annular manner along the circumferential direction of the outer wall of the heat-conducting inner cylinder. Therefore, the annular protrusion contacts the refrigerant instead of the outer wall of the heat-conducting inner cylinder, so that the contact area with the refrigerant is greatly increased, thereby improving the heat exchange rate and production efficiency. The cross section of the annular protrusion is arc-shaped. However, the annular protrusion of the existing ice machine still has a poor heat exchange effect on the refrigerant, which needs to be further improved. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide an improved ice smoothie maker, which, through the structural and parameter optimization design of the raised portion, has a "concave"-shaped structure that can divert and cut the refrigerant, and the design of the radial height and axial clearance can improve the uniformity of heat exchange when the refrigerant flows, thereby further increasing the heat exchange efficiency of the refrigerant, thereby improving the production efficiency of ice smoothies / slurry ice and improving the performance of the ice maker.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An improved ice cream maker comprises a housing (1), an upper end cover (2), a lower end cover (3), a rotating shaft (4), and a spiral scraper (5). The two ends of the housing are respectively connected to the upper end cover and the lower end cover. The housing is provided with a rotating shaft and a spiral scraper. The spiral scraper is fixedly connected to the outer peripheral wall of the rotating shaft and spirally extends along the axial direction of the rotating shaft. The two ends of the rotating shaft are respectively rotatably connected to the housing through bearings. One end of the rotating shaft is transmission-connected to a motor (7) through a transmission (6). The housing comprises an outer cylinder (11), a middle cylinder (12), an inner cylinder (13) and a plurality of other cylinders which are arranged in sequence along the radial direction. 3), a heat-insulating cavity is formed between the outer cylinder and the middle cylinder, a refrigeration cavity is formed between the middle cylinder and the inner cylinder, the inner cavity of the inner cylinder forms an ice-making cavity, a spiral guide plate (8) is arranged in the refrigeration cavity, the spiral guide plate extends in an axial spiral, the pitch gap of the spiral guide plate forms a pitch space (Q), a protrusion (9) is arranged in the refrigeration cavity or the pitch space, the protrusion is arranged on the outer peripheral wall of the inner cylinder, and the protrusion is arranged in a ring shape along the circumferential direction; it is characterized in that: the cross section of the protrusion (9) is a "concave"-shaped structure, and a plurality of protrusions arranged in a ring shape are arranged in each pitch space.

[0006] Furthermore, along the axial direction of the rotating shaft (4), from the upstream end to the downstream end where the refrigerant flows, in each pitch space (Q), the radial height of the protrusion (9) gradually decreases.

[0007] Furthermore, the radial height of the protrusion (9) gradually decreases linearly.

[0008] Furthermore, an axial gap (g) is provided between two adjacent protrusions (9); along the axial direction of the rotating shaft (4), from the upstream end to the downstream end where the refrigerant flows, in each pitch space (Q), the axial gap of the protrusions (9) gradually decreases.

[0009] Furthermore, the axial gap (g) of the protrusion (9) gradually decreases linearly.

[0010] Furthermore, in each pitch space (Q), the line connecting the lowest point and the highest point of the top of all the "concave"-shaped structures forms a first straight line, and the angle a between the first straight line and the axis of the rotating shaft (4) is 1-9°.

[0011] Furthermore, the angle a=2-4°.

[0012] Furthermore, the refrigeration cavity has a radial height H, and the protrusion (9) has a maximum radial height h, where h=(0.15-0.5)H.

[0013] Furthermore, the maximum radial height h=(0.25-0.35)H.

[0014] The utility model discloses an improved ice smoothie ice making machine, which optimizes the structure and parameters of the raised part, and the "concave"-shaped structure can play the role of diverting and cutting the refrigerant. The design of the radial height and the axial gap can improve the heat exchange uniformity when the refrigerant flows, thereby further increasing the heat exchange efficiency of the refrigerant, thereby improving the production efficiency of the ice smoothie / slurry ice and improving the performance of the ice making machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the improved ice-smoothie ice-making machine of the utility model;

[0016] Figure 2 It is a partially enlarged structural schematic diagram of the improved smoothie ice maker of the utility model.

[0017] In the figure: shell 1, upper end cover 2, lower end cover 3, rotating shaft 4, spiral scraper 5, transmission 6, motor 7, spiral guide plate 8, protrusion 9, outer cylinder 11, middle cylinder 12, inner cylinder 13, water inlet pipe 14, ice outlet pipe 15, refrigerant inlet pipe 16, refrigerant outlet pipe 17, pitch space Q. DETAILED DESCRIPTION

[0018] In order to make the technical solution and advantages of the utility model clearer, the technical solution of the utility model will be further described in detail in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the utility model, which are only used to explain the utility model, not to limit the utility model. It should be noted that for the convenience of description, only the parts / structures related to the utility model are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments of the utility model and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0019] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the present invention should be the common meanings understood by ordinary technicians in the field to which the present invention belongs.

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1-2As shown, an improved ice cream maker of the utility model comprises a shell 1, an upper end cover 2, a lower end cover 3, a rotating shaft 4, and a spiral scraper 5. The two ends of the shell 1 are respectively connected to the upper end cover 2 and the lower end cover 3. The rotating shaft 4 and the spiral scraper 5 are installed in the shell 1. The spiral scraper 5 is fixedly connected to the outer peripheral wall of the rotating shaft 4 and extends spirally along the axial direction of the rotating shaft 4. The two ends of the rotating shaft 4 are respectively rotatably connected to the shell 1 through bearings, and one end of the rotating shaft 4 is transmission-connected to the motor 7 through a transmission 6; the shell 1 comprises an outer cylinder 11, a middle cylinder 12, and an inner cylinder 13 which are sequentially arranged in a radial direction. A heat-insulating cavity is formed between the outer cylinder 11 and the middle cylinder 12, and a heat-insulating cavity is formed between the middle cylinder 12 and the inner cylinder. A refrigeration cavity is formed between the shell 1 and the inner cylinder 13, and the inner cavity of the inner cylinder 13 forms an ice-making cavity. A spiral guide plate 8 is arranged in the refrigeration cavity, and the spiral guide plate 8 extends spirally along the axial direction. The pitch gap of the spiral guide plate 8 constitutes / forms a pitch space Q. A protrusion 9 is arranged in the refrigeration cavity or the pitch space Q, and the protrusion 9 is arranged on the outer peripheral wall of the inner cylinder 13; the lower end of the shell 1 is connected with a water inlet pipe 14 and a refrigerant inlet pipe 16, the water inlet pipe 14 is connected to the ice-making cavity, and the refrigerant inlet pipe 16 is connected to the refrigeration cavity; the upper end of the shell 1 is connected with an ice outlet pipe 15 and a refrigerant outlet pipe 17, the ice outlet pipe 15 is connected to the ice-making cavity, and the refrigerant outlet pipe 17 is connected to the refrigeration cavity.

[0022] The protrusions 9 are arranged in a ring shape or a spiral ring shape along the circumferential direction.

[0023] like Figure 2 As shown, the cross section of the protrusion 9 is a "concave"-shaped structure, and a plurality of protrusions 9 arranged in a ring shape are provided in each pitch space Q.

[0024] Along the axial direction of the rotating shaft 4, from the upstream end to the downstream end where the refrigerant flows, the radial height of the protrusion 9 gradually decreases in each pitch space Q. Preferably, the radial height of the protrusion 9 gradually decreases linearly.

[0025] There is an axial gap g between two adjacent protrusions 9; along the axial direction of the rotating shaft 4, from the upstream end to the downstream end where the refrigerant flows, the axial gap g of the protrusion 9 gradually decreases in each pitch space Q. Preferably, the axial gap g of the protrusion 9 gradually decreases linearly.

[0026] The utility model optimizes the structure and parameter design of the raised portion 9, and the "concave" structure can play the role of diverting and cutting the refrigerant. The design of the radial height and the axial gap g can improve the uniformity of heat exchange when the refrigerant flows, thereby further increasing the heat exchange efficiency of the refrigerant, thereby improving the production efficiency of smoothies / slurry ice and improving the efficiency of the ice maker.

[0027] Furthermore, in each pitch space Q, the line connecting the lowest point and the highest point of the top of all the "concave" shaped structures forms a first straight line (line segment), and the angle a between the first straight line and the axis of the rotating shaft 4 is 1-7°, preferably 2-4°.

[0028] The refrigeration chamber has a radial height H, and the protrusion 9 has a maximum radial height h, where h=(0.25-0.35)H, preferably 0.3.

[0029] The “concave”-shaped structure is formed integrally with the inner cylinder 13 or assembled separately.

[0030] The utility model optimizes the structure and parameter design of the raised portion 9, and the "concave"-shaped structure can play the role of diverting and cutting the refrigerant. The design of the radial height and the axial gap g can improve the uniformity of heat exchange when the refrigerant flows, thereby further increasing the heat exchange efficiency of the refrigerant, thereby improving the production efficiency of smoothies / slurry ice and improving the efficiency of the ice maker.

[0031] The above-mentioned implementation mode is an illustration of the present utility model, not a limitation of the present utility model. It can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The protection scope of the present utility model is limited by the attached claims and their equivalents.

Claims

1. An improved ice cream maker, comprising a housing (1), an upper end cover (2), a lower end cover (3), a rotating shaft (4), and a spiral scraper (5), wherein the upper end cover and the lower end cover are connected to the two ends of the housing respectively, the rotating shaft and the spiral scraper are installed in the housing, the spiral scraper is fixedly connected to the outer peripheral wall of the rotating shaft and extends spirally along the axial direction of the rotating shaft, the two ends of the rotating shaft are respectively rotatably connected to the housing through bearings, and one end of the rotating shaft is transmission-connected to the motor (7) through a transmission (6); the housing comprises radially arranged An outer cylinder (11), a middle cylinder (12), and an inner cylinder (13); a heat-insulating cavity is formed between the outer cylinder and the middle cylinder; a refrigeration cavity is formed between the middle cylinder and the inner cylinder; an inner cavity of the inner cylinder forms an ice-making cavity; a spiral guide plate (8) is arranged in the refrigeration cavity; the spiral guide plate extends spirally in the axial direction; a pitch gap of the spiral guide plate forms a pitch space (Q); a protrusion (9) is arranged in the refrigeration cavity or the pitch space; the protrusion is arranged on the outer peripheral wall of the inner cylinder; and the protrusion is arranged in a ring shape along the circumferential direction; the characteristics are: The cross section of the raised portion (9) is in a "concave" shape, and a plurality of raised portions arranged in a ring shape are arranged in each pitch space.

2. An improved ice slush machine as claimed in claim 1, characterized in that: Along the axial direction of the rotating shaft (4), from the upstream end to the downstream end where the refrigerant flows, in each pitch space (Q), the radial height of the protrusion (9) gradually decreases.

3. An improved ice slush machine as claimed in claim 2, characterized in that: The radial height of the protrusion (9) gradually decreases linearly.

4. An improved ice slush machine as claimed in claim 3, characterized in that: An axial gap (g) is provided between two adjacent protrusions (9); along the axial direction of the rotating shaft (4), from the upstream end to the downstream end where the refrigerant flows, the axial gap of the protrusions (9) gradually decreases in each pitch space (Q).

5. An improved ice slush machine as claimed in claim 4, characterized in that: The axial gap (g) of the protruding portion (9) gradually decreases linearly.

6. An improved ice slush machine as claimed in claim 5, characterized in that: In each pitch space (Q), the line connecting the lowest point and the highest point of the top of all the "concave"-shaped structures forms a first straight line, and the angle a between the first straight line and the axis of the rotating shaft (4) is 1-9 degrees.

7. An improved ice slush machine as claimed in claim 6, characterized in that: The angle a=2-4°.

8. An improved ice slush machine as claimed in claim 7, characterized in that: The refrigeration cavity has a radial height H, and the protrusion (9) has a maximum radial height h, where h=(0.15-0.5)H.

9. An improved ice slush machine as claimed in claim 8, characterized in that: The maximum radial height h=(0.25-0.35)H.

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