Frozen beverage maker

Abstract

The utility model provides a frozen beverage making machine which comprises a mixing container, an evaporator, a stirrer and a power device, the evaporator comprises an ice making barrel and a refrigeration pipe, the refrigeration pipe is provided with a fitting pipe face, the fitting pipe face is tightly fitted with the inner side wall of the ice making barrel, and the inner side wall of the ice making barrel is provided with a plurality of blades in the axis direction of the ice making barrel. The cross section of the refrigerating pipe is a refrigerating cross section, the cross section of the attaching pipe surface is an attaching cross section, the ratio of the length of the attaching cross section to the maximum length of the refrigerating cross section is larger than or equal to 3 / 4, and the stirrer is rotationally arranged on the ice making barrel so as to scrape solid bodies formed by condensation on the outer side wall of the ice making barrel; the power device is pivotally arranged on the stirrer. According to the invention, high-efficiency refrigeration of the ice-making cylinder can be ensured, the refrigeration effect can be kept consistent at any position as far as possible, the refrigeration characteristics of uniformity and continuity are output, and the refrigeration efficiency is optimized.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of household appliances, in particular to a frozen beverage manufacturing machine. BACKGROUND

[0002] The frozen beverage manufacturing machine has a mixing container for storing liquid, and the liquid in the mixing container is changed into solid body, such as slush, ice cream, etc., after being processed by the refrigeration of the ice-making cylinder, and then the processed solid body is distributed to the user. The refrigeration performance of the ice-making cylinder is one of the important parameters of the frozen beverage manufacturing machine. The refrigeration efficiency of the ice-making cylinder on the market cannot meet the ideal demand, mainly because the ice-making cylinder cannot efficiently receive the conduction of the refrigerant. Therefore, improving the conduction efficiency of the refrigerant to the ice-making cylinder is a technical problem that needs to be solved urgently. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies of the prior art, the present utility model provides a frozen beverage manufacturing machine, which realizes high refrigeration conduction efficiency and high ice-making cylinder refrigeration performance.

[0004] The present utility model realizes the following technical scheme:

[0005] A frozen beverage manufacturing machine comprises:

[0006] a mixing container;

[0007] an evaporator configured in the mixing container, comprising an ice-making cylinder and a refrigeration pipe, the refrigeration pipe is arranged in the interior of the ice-making cylinder, the refrigeration pipe has a close-fitting pipe surface, the close-fitting pipe surface is closely fitted with the inner side wall of the ice-making cylinder, in the axial direction of the ice-making cylinder, the cross section of the refrigeration pipe is a refrigeration cross section, the cross section of the close-fitting pipe surface is a close-fitting cross section, the length ratio of the close-fitting cross section to the maximum length of the refrigeration cross section is greater than or equal to 3 / 4;

[0008] a stirrer rotatably arranged on the ice-making cylinder to scrape off the solid body condensed on the outer side wall of the ice-making cylinder;

[0009] a power device pivotally arranged on the stirrer.

[0010] Further, the length of the refrigeration cross section extends along the axial direction of the ice-making cylinder.

[0011] Further, in the axial direction of the ice-making cylinder, the refrigeration cross section is in the shape of a rectangle, and the connecting part of the adjacent two sides of the refrigeration cross section is formed with a rounded corner.

[0012] Further, in the axial direction of the ice-making cylinder, the refrigeration cross section is in the shape of a runway, and the straight line segment of the refrigeration cross section is closely fitted with the inner side wall of the ice-making cylinder.

[0013] Further, the refrigeration section is in D-shaped in the axial direction of the ice making cylinder, and a straight line segment of the refrigeration section is closely fitted to the inner side wall of the ice making cylinder.

[0014] Further, a capillary tube and a transmission tube are further included, and the capillary tube, the refrigeration tube and the transmission tube sequentially flow with cooling medium which absorbs heat of the ice making cylinder to form the solid body.

[0015] Further, the transmission tube is integrally formed with the refrigeration tube, and a bending segment is twisted at the joint of the transmission tube and the refrigeration tube.

[0016] Further, in the direction perpendicular to the flow direction of the cooling medium, the cross section of the transmission tube is a transmission section, the circumference of the transmission section is equal to the circumference of the refrigeration section, the maximum width of the transmission section is D1, the maximum length of the transmission section is L1, the maximum width of the refrigeration section is D2, the maximum length of the refrigeration section is L2, D1>D2, and L1

[0017] Further, in the direction perpendicular to the flow direction of the cooling medium, the cross section of the transmission tube is in hollow circular ring type.

[0018] Further, the capillary tube is arranged in the cavity formed by the bending of the refrigeration tube, and the capillary tube and the transmission tube are led out at the same side of the ice making cylinder.

[0019] Further, the bending shape of the corresponding part of the capillary tube and the transmission tube is adaptively arranged with the bending shape of the transmission tube.

[0020] Further, part of the structure of the capillary tube is arranged in the transmission tube.

[0021] Further, at least one buckle is included, and the capillary tube is fixed to the transmission tube through the buckle.

[0022] Further, an expansion member is further included, the refrigeration tube is arranged between the expansion member and the ice making cylinder, and the refrigeration tube is closely fitted to the ice making cylinder and the expansion member after the expansion of the refrigeration tube along the radial direction of the ice making cylinder.

[0023] Further, the expansion member extends along the axial direction of the ice making cylinder and is coaxially arranged with the ice making cylinder.

[0024] Further, a pressing member is further included, the pressing member is arranged at the opposite ends of the expansion member along the axial direction of the ice making cylinder, and the pressing member abuts against the expansion member and limits the displacement of the expansion member along the radial direction of the ice making cylinder.

[0025] Further, the end of the pressing member towards the expanding member has a pressing slope, and the expanding member has a corresponding expanding slope, and the area of the pressing slope in contact with the expanding slope gradually increases during the movement of the pressing member towards the expanding member.

[0026] Further, the expanding member is a circular ring cylinder, and a notch is formed on the expanding member, and the notch extends from the first end of the expanding member to the second end of the expanding member along the axial direction of the ice making cylinder.

[0027] Further, the power device includes a motor, and a transmission shaft pivotally connected with the motor, and the free end of the transmission shaft is connected with the stirrer.

[0028] Further, a bearing member is further included, and the bearing member is arranged on the side close to the free end of the transmission shaft and located in the cavity of the ice making cylinder.

[0029] Further, the ice making cylinder has an end face on one side in the mixing container, and the bearing member is arranged on the end face.

[0030] Further, the end face is snap-connected with the ice making cylinder, or the end face is integrally formed with the ice making cylinder.

[0031] Further, a through hole is formed on the end face, and the free end of the transmission shaft passes through the through hole and is located in the mixing container.

[0032] Further, a sealing member is further included, and the sealing member is arranged at the through hole and seals against the transmission shaft.

[0033] Further, the stirrer includes a scraping part and a pushing part, the scraping part is in contact with the outer side wall of the ice making cylinder to scrape the solid body condensed, and the pushing part pushes the scraped solid body forward during rotation.

[0034] Further, the scraping part is linear and extends along the axial direction of the ice making cylinder, and the pushing part is helically arranged along the axial direction of the ice making cylinder and extends to the outside of the ice making cylinder.

[0035] Further, a rubber strip is arranged on the scraping part, and the rubber strip abuts against the outer side wall of the ice making cylinder.

[0036] Further, the rubber strip is shaped to fit the scraping part, and the rubber strip is in interference fit with the outer side wall of the ice making cylinder.

[0037] Compared with the prior art, the refrigeration pipe has a fitting pipe surface, the fitting pipe surface is closely fitted with the inner side wall of the ice making cylinder, in the axial direction of the ice making cylinder, the fitting pipe surface can be maximally fitted with the ice making cylinder, first, the high efficiency refrigeration of the ice making cylinder can be ensured, second, the refrigeration effect can be kept consistent as far as possible at any position, the refrigeration characteristics of uniformity and continuity are output, and the refrigeration efficiency is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 A structure schematic view of the frozen beverage manufacturing machine is provided for an embodiment of the utility model;

[0039] Figure 2 A sectional view of Figure 1

[0040] Figure 3 A structure schematic view of the ice making cylinder in the evaporator;

[0041] Figure 4 A structure sectional view of the evaporator;

[0042] Figure 5 A structure sectional view of the refrigeration pipe in the evaporator;

[0043] Figure 6 A structure schematic view of the refrigeration pipe in the evaporator;

[0044] Figure 7 A structure schematic view of the refrigeration pipe in the evaporator;

[0045] Figure 8 A structure schematic view in the evaporator;

[0046] Figure 9 A structure sectional view of the transmission pipe in the evaporator;

[0047] Figure 10 A structure schematic view of the stirrer;

[0048] Figure 11 A local sectional view at the bearing piece of the power device;

[0049] Figure 12 A structure schematic view at the expansion piece;

[0050] Figure 13 A structure schematic view at the expansion piece;

[0051] Figure 14 A structure schematic view of the expansion piece.

[0052] Reference signs:

[0053] 100, mixing container; 1001, feeding opening; 1002, discharging opening;​

[0054] 200, evaporator; 201, ice making cylinder; 202, refrigeration pipe; 2021, pipe surface; 2022, cross section; 203, capillary tube; 204, transmission pipe; 205, bending section;

[0055] 300, stirrer; 3001, scraping part; 3002, pushing part;

[0056] 400, power device; 401, speed reducer; 402, transmission shaft; 403, bearing part;

[0057] 500, cold making circulation system;

[0058] 600, machine base;

[0059] 700, expansion part; 701, pressing part; 702, pressing inclined surface; 703, expansion inclined surface; 704, notch. DETAILED DESCRIPTION

[0060] The technical solutions of the utility model are further described in detail below in combination with preferred embodiments and the drawings. In the description of the utility model, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientations or positional relationships shown in the drawings. In addition, the terms "first" and "second" are used for the purpose of description only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0061] As Figures 1 to 14The utility model discloses an embodiment of freezing beverage manufacturing machine, including mixing container 100, evaporimeter 200, agitator 300, power ware 400, cold preparation circulating system 500 and base 600. Wherein mixing container 100, evaporimeter 200, agitator 300 and power ware 400 are mainly concentrated arrangement in the upper half of base 600, cold preparation circulating system 500 is arranged in the lower half of base 600, so that the internal space of base 600 forms the upper and lower layered structure, each component distribution is more compact, is fully utilized to realize the volume of freezing beverage manufacturing machine of assembled completion, the characteristics of small space occupation, on the one hand can satisfy customer in multiple life scenes can install the freezing beverage manufacturing machine of the application, and the installation position is based on the above characteristics and is basically not limited, on the other hand is favorable to packing and shipping, reduces the transportation cost of enterprise, and also convenient for the carrying of customer.

[0062] Specifically, mixing container 100 is configured on base 600, evaporimeter 200 is configured in mixing container 100, for all accommodating solid body produced by the refrigeration of evaporimeter 200 in mixing container 100.Evaporimeter 200 includes ice making cylinder 201 and refrigeration pipe 202, agitator 300 is rotationally configured on ice making cylinder 201, and power ware 400 is pivotally configured on agitator 300.Evaporimeter 202 is used to connect cold preparation circulating system 500, so that ice making cylinder 201 can be refrigerated, solid body is condensed on the outer side wall of ice making cylinder 201 in the refrigeration working state, power ware 400 drives agitator 300 to continuously rotate in one direction, the solid body is scraped off, and the scraped solid body is collected and pushed forward, so that the solid body is continuously transported to the discharge port 1002 of mixing container 100 for consumption.

[0063] With reference to Figure 1 And Figure 2 Mixing container 100 is used to store the solution poured therein, and can also be used to store the solid body obtained by condensation of the solution.Mixing container 100 is configured on base 600, the left end of the mixing container extends to the outside of base 600, the discharge port 1002 is arranged at the left end and located outside base 600, and the opening of the discharge port 1002 is arranged downward to facilitate the user to receive the material;The right end of mixing container 100 is provided with a fixing part to be fixed on base 600.It is worth noting that the upper side of mixing container 100 is flush or approximately flush with the upper side of base 600, and the width of the front and rear sides is equal to or slightly smaller than base 600, so that the streamline of the overall shape of mixing container 100 is more smooth, has better aesthetic appearance, and the overall structure is compact.

[0064] The mixing container 100 can include a fully transparent wall or a partially transparent wall to facilitate the user to observe the storage state in the mixing container 100 in real time. Specifically, the mixing container 100 includes a filling port 1001, and preferably, the filling port 1002 is arranged on the upper side wall of the mixing container 100 or adjacent to the upper side wall to ensure that the solution passing through the filling port 1002 can flow into the cavity of the mixing container 100 completely and smoothly. The upper side wall of the mixing container 100 is recessed to form the filling port 1002, wherein the through opening of the filling port 1002 is located at the lowest part of the filling port 1002, and the rest forms a guide part. During the filling process, the solution is guided to the through opening through the guide part and then flows into the mixing container 100. The guide part has a larger receiving area than the through opening, which can sufficiently receive the pouring of the liquid and avoid the direct pouring into the mixing container 100, thereby preventing the generation of phenomena such as splashing and bubbles. The through opening is adaptively arranged according to the requirements, and to ensure safety, the operator cannot reach into the mixing container 100 through the through opening.

[0065] With reference to Figure 3 and Figure 4 The ice making cylinder 201 extends in the left-right direction and can be made of stainless steel, has good heat conduction performance, and can quickly condense solid bodies on the outer side wall thereof during the refrigeration process. The right end of the ice making cylinder 201 is arranged on the base 600 to maintain the stability thereof. The ice making cylinder 201 is hollow, and the refrigeration pipe 202 is arranged in the interior of the ice making cylinder 201. The refrigeration pipe 202 is used to connect the refrigeration cycle system 500, thereby enabling the refrigeration of the ice making cylinder 201.

[0066] With reference to Figure 5 The refrigeration pipe 202 has a close-fitting pipe surface 2021 that closely fits the inner side wall of the ice making cylinder 201. It is worth noting that, in the axial direction of the ice making cylinder 201, the close-fitting pipe surface 2021 can closely fit the ice making cylinder 201 to the greatest extent, which can first ensure the high-efficiency refrigeration of the ice making cylinder 201 and secondly enable the refrigeration effect to be as consistent as possible at any position, thereby optimizing the refrigeration efficiency.

[0067] In the present application, in the axial direction of the ice making cylinder 201, the cross section of the refrigeration pipe 202 is a refrigeration cross section, the cross section of the close-fitting pipe surface 2021 is a close-fitting cross section 2022, the ratio of the length of the close-fitting cross section 2022 to the maximum length of the refrigeration pipe cross section is greater than or equal to 3 / 4, the refrigeration pipe is usually a hollow circular pipe or a flat pipe, and is arranged in a coiled manner, and the outer edge thereof has a chamfer structure, so that the refrigeration pipe can only be adaptively squeezed to adjust the flat pipe to a suitable size, thereby improving the length ratio value and achieving the high-efficiency, uniform and continuous refrigeration characteristics.

[0068] With reference to Figure 6, the length of the refrigeration section extends along the axis direction of the ice-making cylinder, saves material cost, and has small radial space occupation and compact structure. Specifically, the length of the refrigeration section is greater than that of the fitting section 2022, the fitting section 2022 is directly conducted as a structure in the refrigeration process, and the length of the single fitting section 2022 is in a positive proportional relationship with the length of the refrigeration section, that is, the length ratio of the fitting section 2022 to the maximum length of the refrigeration section is greater than or equal to 3 / 4 and less than 1. Therefore, in the present application, the length of the refrigeration section extends along the axis direction of the ice-making cylinder. In the same circumference design, the above design can not only ensure high efficiency of refrigeration, but also save material cost, have small radial space occupation, and have good comprehensive performance.

[0069] The shape of the refrigeration section is affected by the processing technology, and various shapes can be selected, but it is worth noting that the length of the refrigeration section is always greater than that of the fitting section 2022.

[0070] With reference to Figure 7 , in the embodiments adopted in the present application, referring to Figure 7 a, in the axis direction of the ice-making cylinder 201, the refrigeration section is approximately rectangular, and the connection between the adjacent two sides of the refrigeration section forms a rounded corner. Referring to Figure 7 b, in the axis direction of the ice-making cylinder 201, the refrigeration section is in a runway shape, the straight line section of the refrigeration section is closely fitted with the inner side wall of the ice-making cylinder 201, and the connection between the adjacent two sides of the refrigeration section forms a gap. Referring to Figure 7 c, in the axis direction of the ice-making cylinder 201, the refrigeration section is in a D shape, the straight line section of the refrigeration section is closely fitted with the inner side wall of the ice-making cylinder, and the connection between the adjacent two sides of the refrigeration section still forms a gap.

[0071] In the above structure, there is a gap between the fitting pipe surfaces 2021 formed on the adjacent two refrigeration sections, and the size of the gap directly affects the ratio between the length of the fitting section 2022 and the length of the refrigeration section, and affects the refrigeration efficiency of the evaporator.

[0072] Since the refrigeration pipe 202 is installed in the cavity of the ice-making cylinder 201, the stress mode is limited, and it is difficult to apply force to the refrigeration pipe 202. The refrigeration pipe 202 is arranged in the cavity of the ice-making cylinder 201, has a certain elasticity, and has a risk of slight deformation during installation. The above will affect the refrigeration efficiency of the evaporator.

[0073] In the present application, a diameter expansion process is added to meet the demand of high-efficiency refrigeration of the evaporator. Specifically, taking the refrigeration section in the shape of an approximate rectangle as an example, the refrigeration pipe 202 is first installed into the cavity of the ice-making cylinder 201, and then an appropriate diameter expansion tool is arranged in the inner space of the refrigeration pipe 202. The diameter expansion tool is in circumferential abutment with the inner side wall of the refrigeration pipe 202 and applies an outward radial force to the inner side wall of the refrigeration pipe 202, so that the outer side wall of the refrigeration pipe 202 is tightly fitted with the inner side wall of the ice-making cylinder 201. The refrigeration pipe 202 can be slightly deformed, on the one hand, to make the chamfered structure smaller, expand the contact area between the fitting section and the ice-making cylinder 201 on the axis, and on the other hand, to compensate for the concave part on the surface of the fitting pipe surface 2021 in the process of processing and installation, so that the contact area between the fitting pipe surface 2021 and the ice-making cylinder 201 is uniform and continuous.

[0074] With reference to Figure 7 b. In the axial direction of the ice-making cylinder 201, the refrigeration section is in the shape of a racetrack, and the straight line section of the refrigeration section is tightly fitted with the inner side wall of the ice-making cylinder 201. Specifically, the racetrack-shaped refrigeration section has a straight line section and a curved section, and the straight line section on one side forms the fitting section 2021. The curved sections of two adjacent refrigeration sections correspondingly contact, the bending curvature of the curved section is greater than that of the chamfered corner, and the gap length between the two adjacent fitting sections 2022 is greater, so that the refrigeration efficiency obtained by the racetrack-shaped structure design of this embodiment is improved to a certain extent while meeting the requirements.

[0075] With reference to Figure 7 c. In the axial direction of the ice-making cylinder 201, the refrigeration section is in the shape of a D, and the straight line section of the refrigeration section is tightly fitted with the inner side wall of the ice-making cylinder 201. In this way, the initial shape of the refrigeration pipe 202 can be a circular pipe, and then a pressing process is performed to form a D shape. This pressing process needs to use external equipment, so it needs to be completed before the refrigeration pipe 202 is arranged in the ice-making cylinder. This way not only involves a pressing process, but also an arrangement process, so the steps are more complex, and deformation will occur when it is arranged in the ice-making cylinder 201. Because it will cause the gap between the two adjacent fitting sections 2022 to be relatively large, the refrigeration efficiency obtained by the D-shaped structure design of this embodiment is improved to a certain extent while meeting the requirements.

[0076] With reference to Figure 2 and Figure 8 The evaporator 200 further includes a capillary tube 203 and a transmission pipe 204 connected to the opposite ends of the refrigeration pipe 202, and the cooling medium for absorbing heat from the ice-making cylinder 201 to form a solid body flows in the capillary tube 203, the refrigeration pipe 202 and the transmission pipe 204 in sequence.

[0077] The transmission pipe 204 is integrally formed with the refrigeration pipe 202, and a bending section 205 is twisted at the joint of the transmission pipe 204 and the refrigeration pipe 202. The bending section 205 is the starting point of the transmission pipe 204, which can extend to the lower half of the base 600 to connect the cold-making circulation system 500 arranged in the cavity of the base 600, thereby reasonably allocating the installation space and making the structure compact. Similarly, the capillary tube 203 is arranged in the cavity formed by the refrigeration pipe 202 after being bent, and the capillary tube 203 and the transmission pipe 204 are led out on the same side of the ice-making cylinder 201. The bent capillary tube 203 can also extend to the lower half of the base 600 to connect the cold-making circulation system 500 arranged in the cavity of the base 600, thereby reasonably allocating the installation space and making the structure compact.

[0078] It is worth noting that the radial dimension of the capillary tube 203 is smaller than that of the transmission pipe 204 based on the high and low pressure transmission of the cold-making circulation system 500, so the capillary tube 203 is arranged away from the fixed end of the ice-making cylinder 201. On the one hand, the smaller size is easier to bend in the process, and the process operation is simple. On the other hand, since the capillary tube 203 needs to cross the refrigeration pipe 202 in the axial direction, the required design length is longer, and the selection of small size can also save the cost of material investment.

[0079] Referring to Figure 9 It is worth noting that the cross section of the transmission pipe 204 in the direction perpendicular to the flow direction of the cooling medium is a transmission cross section, and the circumference of the transmission cross section is equal to the circumference of the refrigeration cross section. The maximum width of the transmission cross section is D1, and the maximum length of the transmission cross section is L1. The maximum width of the refrigeration cross section is D2, and the maximum length of the refrigeration cross section is L2. D1>D2, and L1

[0080] The structure of the capillary tube 203 outside the cavity of the refrigeration pipe 202 is correspondingly arranged with the transmission pipe 204. It is worth noting that the bending shape of the capillary tube 203 is adaptively arranged with the bending shape of the transmission pipe 204, so that the capillary tube 203 can better fit the transmission pipe 204, and the capillary tube 203 is fixed on the transmission pipe 204 by the buckle. Due to the length or other factors, part of the structure of the capillary tube 203 is in the form of a thread and is arranged on the outer side wall of the transmission pipe 204.

[0081] Referring to Figure 2 and Figure 10, the stirrer 300 is rotatably arranged on the ice making cylinder 201, and is used to push the condensed solid bodies from right to left to the discharge port 1002. An installation space is formed between the lower side of the ice making cylinder 201 and the lower side wall of the mixing container 100, so as to facilitate the sleeving of the stirrer 300 on the ice making cylinder 201. The stirrer 300 has a straight scraping part 3001 and a spiral pushing part 3002, the scraping part 3001 is used to scrape off the solid bodies condensed on the outside of the ice making cylinder 201, and the pushing part 3002 is used to collect and push the scraped-off solid bodies from right to left.

[0082] With reference to Figure 2 , the power device 400 is arranged inside the base 600, and the output end of the power device 400 is pivotally arranged on the stirrer 300 to drive the stirrer 300 to continuously rotate. The power device is selected as an electric machine, and the output end of the electric machine is provided with a speed reducer 401. The speed reducer 401 reduces the output rotation speed through the rotation speed ratio, and needs a large installation space. By arranging the speed reducer 401 at the side wall of the base 600, the speed reducer 401 with a large rotation speed ratio can be arranged by using the upper and lower structure, and the space of the base 600 can be effectively utilized.

[0083] The power device 400 further comprises a transmission shaft 402, which is used to transmit the output power of the electric machine to the stirrer 300 to drive the stirrer 300 to rotate. The transmission shaft 402 extends along the axis direction of the ice making cylinder 201, the input end of the transmission shaft 402 is pivotally connected with the speed reducer 401, the free end of the transmission shaft 402 penetrates the cavity of the ice making cylinder 201 and extends into the mixing container 100, and the free end of the transmission shaft 402 is connected with the stirrer 300.

[0084] With reference to Figure 2 and Figure 11 , the power device 400 further comprises a bearing 403, which is used to rotatably support the free end of the transmission shaft 402. The bearing 403 is arranged in the cavity of the ice making cylinder 201 and is fixed relative to the ice making cylinder 201. It is worth noting that the transmission shaft 402 is coaxially arranged with the ice making cylinder 201. After penetrating the bearing 403, the free end of the transmission shaft 402 continues to extend to the left into the mixing container 100. Since part of the transmission shaft 402 is located outside the inner cavity of the ice making cylinder 201, it needs to be sealed to prevent liquid from flowing into the cavity of the ice making cylinder 201 and affecting the components such as the refrigeration pipe 202. In the present application, a sealing member is arranged at the bearing 403.

[0085] With reference to Figure 2 and Figure 11The end face is integrally formed with the ice making cylinder 201, and the advantage is that the process is simpler, and the connection between the end face and the ice making cylinder 201 does not need to be sealed.

[0086] A through hole is formed in the end face of the ice making cylinder 201, and the bearing member 403 is coaxially arranged with the through hole, so that the transmission shaft 402 can stably pass through the through hole after being supported by the bearing member 403. A sealing member is arranged between the bearing member 402 and the through hole, to ensure the sealing between the inner cavity of the ice making cylinder 201 and the mixing container 100 during the installation of the transmission shaft 402.

[0087] The bearing member includes a bearing and a bearing mounting block having a bearing cavity. The bearing mounting block is located in the inner cavity of the ice making cylinder 201 and surrounds the through hole, and a locking screw outside the ice making cylinder 201 passes through the end face to fix and lock the bearing mounting block on the end face. The bearing is mounted in the bearing cavity, and a tapered roller bearing can be used.

[0088] Specifically referring to Figure 2 and Figure 10 The scraping part 3001 is used to effectively scrape off the solid body on the outer wall of the ice making cylinder 201, the pushing part 3002 is spiral-shaped, can push the solid body away from the ice making cylinder 201, and can push the solid body outside the ice making cylinder 201 to the discharge port 1002.

[0089] The pushing part 3002 includes a first pushing unit 3003 and a second pushing unit 3004, the first pushing unit 3003 is sleeved on the ice making cylinder 201, and the second pushing unit 3004 is located outside the ice making cylinder 201. The second pushing unit 3004 is spiral-shaped, and a connecting part is formed in the middle of the end face close to the ice making cylinder 201, and the connecting part is used to fixedly connect the free end of the transmission shaft 402.

[0090] Referring to Figure 10, the scraping part 3001 is in a linear shape and extends along the axis direction of the ice making cylinder 201. During rotation, the linear working part of the scraping part 3001 can tightly adhere to the outer side wall of the ice making cylinder 201 to scrape off the solid body. The scraping part 3001 is usually made by injection molding process, and the ice making cylinder 201 is made of stainless steel. Due to the influence of process parameters such as processing process and installation process, the scraping part 3001 cannot guarantee to effectively adhere to the surface of the ice making cylinder 201; if it is excessively adhered, it will cause excessive friction, which will affect the transmission of the transmission shaft 402, motor parts and other parts. Usually after installation, there is a gap between the adhesion part of the scraping part 3001 and the surface of the ice making cylinder 201. In view of this defect, the scraping part 3001 of the present application is also provided with a rubber strip which is matched with the shape of the scraping part 3001 and is installed in an interference fit with the ice making cylinder 201 to completely adhere to the surface of the ice making cylinder 201. On the one hand, it can effectively scrape off the solid body on the ice making cylinder 201; on the other hand, the use of soft material can reduce friction and also will not produce harsh sound during friction.

[0091] With reference to Figure 2 and Figure 10 , the pushing part 3002 rotates around the axis of the ice making cylinder 201 in a predetermined direction to push the scraped solid body forward during rotation. Specifically, the pushing part 3002 is spirally arranged along the axis of the ice making cylinder 201 and part of the structure extends to the outside of the ice making cylinder 201. In the present application, the number of pushing parts 3002 is two, and the relative starting point and the relative ending point of the two pushing parts 3002 are arranged at an interval of 180°. Among them, the number of scraping parts 3001 is also two, and the scraping part 3001 and the pushing part 3002 are arranged at an interval around the circumference of the ice making cylinder 201, and the relative starting point and the relative ending point of the adjacent scraping part 3001 and the pushing part 3002 are arranged at an interval of 90°.

[0092] With reference to Figure 12 , the frozen beverage maker of the present application also comprises an expanding part 700 for expanding the diameter of the refrigeration pipe 202 so that the refrigeration pipe 202 can tightly adhere to the ice making cylinder 201. It is worth noting that the above-mentioned expansion process is also used in the present application, but the present application is not limited to this kind of expansion process using the expanding part 700 structure.

[0093] The refrigeration pipe 202 mentioned above adopts a spiral disc structure and has a certain elasticity. After the expansion jig is withdrawn, slight rebound phenomenon will inevitably occur. In addition, under the influence of factors such as long-term scraping action of the stirrer 300 on the ice making cylinder 201, and the vibration of the power device, the refrigeration pipe 202 will also loosen without structural limiting. In the presence of the above-mentioned drawbacks, it will inevitably affect the bonding area of the refrigeration pipe 202 and the ice making cylinder 201. However, the expansion piece 700 described above can effectively solve the above-mentioned drawbacks.

[0094] Specifically, the refrigeration pipe 202 is arranged between the expansion piece 700 and the ice making cylinder 201. The expansion piece 700 extends in the axial direction of the ice making cylinder 201 and is coaxially arranged with the ice making cylinder 201. The extension length is approximately equal to or equal to the length of the refrigeration pipe 202, so that the refrigeration pipe 201 can be optimally radially expanded. The expanded refrigeration pipe 202 can be closely bonded with the ice making cylinder 201 to increase the bonding area between the refrigeration pipe 202 and the ice making cylinder 201, so as to ensure the high efficiency of the ice making cylinder 201, and to ensure the consistency of the refrigeration effect at any position as much as possible, to ensure the uniformity and continuity of the refrigeration, and to optimize the refrigeration efficiency.

[0095] Referring to Figures 12 to 14 The refrigerated beverage maker of the present application further comprises a pressing piece 701 for limiting the displacement of the expansion piece 700 in the radial direction. Specifically, the pressing piece 701 is arranged at the opposite ends of the expansion piece 700 in the axial direction of the ice making cylinder 201, and is used to press the expansion piece 700. Specifically, the end of the pressing piece 701 towards the expansion piece 700 has a pressing slope 702. In one way, the expansion piece 700 correspondingly has an expansion slope 703. In actual operation, during or after the expansion piece 700 expands the refrigeration pipe 202, the pressing piece 701 can move towards the expansion piece 700, so that the bonding area of the pressing slope 702 and the expansion slope 703 gradually increases, until the pressing piece 701 can tightly press the expansion piece 700 in the radial direction, and the two are relatively fixed in the form of interference fit, so that the outer side wall of the expansion piece 700 can tightly press the refrigeration pipe 202, and under the action of external factors, it always ensures that the bonded pipe surface 2021 of the refrigeration pipe 202 is tightly bonded with the inner side wall of the ice making cylinder 201.

[0096] Referring to Figure 12 and Figure 14In an implementation manner, the expanding member 700 is a circular ring cylinder, and the expanding member 700 is provided with a notch 704 extending from the first end of the expanding member 700 to the second end of the expanding member 700 along the axial direction of the ice making cylinder 201. In the process of expanding the diameter, the diameter of the expanding member gradually increases, and the opening amount of the notch gradually increases by using the design of the notch, so as to compensate the change of the diameter and ensure the effective completion of the expanding process.

[0097] With reference to Figure 12 The expanding member 700 and the pressing member 701 are arranged in the cavity of the ice making cylinder 201 from one end of the ice making cylinder 201. The left pressing member 701 is first arranged in the cavity of the ice making cylinder 201, and preferably, the end of the pressing member 701 is provided with a cavity matched with the bearing seat, and the positioning of the step part can ensure the accuracy of the installation position, especially can ensure that the axis of the pressing member 701 coincides with the axis of the ice making cylinder 201 after installation. Then, the expanding member 700 is arranged in the cavity of the ice making cylinder 201, and it is worth noting that the expanding member 700 is arranged in a clearance fit manner, and the outer side wall of the expanding member 700 does not contact the refrigeration pipe 202. Finally, the right pressing member 701 is arranged in the ice making cylinder 201. In the process of arranging the right pressing member 701, the two axial ends of the expanding member 700 are guided to move obliquely upward by the pressing inclined surface 701, and the diameter of the expanding member 700 is gradually expanded, so as to press and tightly fit the inner side wall of the refrigeration pipe 202, until the expanding action of the refrigeration pipe 202 is completed, and the pipe surface 2021 of the refrigeration pipe 202 is tightly fitted with the inner side wall of the ice making cylinder 201.

[0098] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations are described, and it is understood that any combination of the technical features is within the scope of the present disclosure, as long as the combination does not result in contradictions.

Claims

1. A frozen beverage maker characterized by, The application relates to an ice maker, which comprises a mixing container, an evaporator arranged in the mixing container, a stirrer arranged on the evaporator, and a power device. The evaporator comprises an ice making cylinder and a refrigeration pipe, the refrigeration pipe is arranged in the ice making cylinder, the refrigeration pipe has a close-fitting pipe surface, the close-fitting pipe surface is closely fitted to the inner wall of the ice making cylinder, the cross section of the refrigeration pipe is a refrigeration cross section in the axial direction of the ice making cylinder, the cross section of the close-fitting pipe surface is a close-fitting cross section, and the ratio of the length of the close-fitting cross section to the maximum length of the refrigeration cross section is greater than or equal to 3 / 4. The stirrer is arranged on the ice making cylinder and is used to scrape off solid bodies condensed on the outer wall of the ice making cylinder. The power device is pivotally arranged on the stirrer. The length of the refrigeration cross section extends along the axial direction of the ice making cylinder.

2. The frozen beverage manufacturing machine of claim 1, wherein, In the axial direction of the ice making cylinder, the refrigeration cross section is in a rectangular shape, and the connecting position of two adjacent sides of the refrigeration cross section is formed with a rounded corner. In the axial direction of the ice making cylinder, the refrigeration cross section is in a runway shape, and the straight line segment of the refrigeration cross section is closely fitted to the inner wall of the ice making cylinder. In the axial direction of the ice making cylinder, the refrigeration cross section is in a D shape, and the straight line segment of the refrigeration cross section is closely fitted to the inner wall of the ice making cylinder. The evaporator further comprises a capillary pipe and a transmission pipe connected to the opposite ends of the refrigeration pipe, and the capillary pipe, the refrigeration pipe and the transmission pipe sequentially flow with cooling medium which absorbs heat of the ice making cylinder to form the solid bodies.

3. The frozen beverage manufacturing machine of claim 1, wherein, The transmission pipe is integrally formed with the refrigeration pipe, and the connecting position of the transmission pipe and the refrigeration pipe is twisted to form a bending segment. In the direction perpendicular to the flow direction of the cooling medium, the cross section of the transmission pipe is a transmission cross section, the circumference of the transmission cross section is equal to the circumference of the refrigeration cross section, the maximum width of the transmission cross section is D1, the maximum length of the transmission cross section is L1, the maximum width of the refrigeration cross section is D2, the maximum length of the refrigeration cross section is L2, D1>D2, and L1 In the direction perpendicular to the flow direction of the cooling medium, the cross section of the transmission pipe is in a hollow circular ring shape. The capillary pipe is arranged in the cavity formed by the bending of the refrigeration pipe, and the capillary pipe and the transmission pipe are led out on the same side of the ice making cylinder. The bending shape of the corresponding part of the capillary pipe and the transmission pipe is matched with the bending shape of the transmission pipe. Part of the structure of the capillary pipe is arranged in the transmission pipe. The capillary pipe is fixed on the transmission pipe through at least one buckle. The evaporator further comprises an expansion device, the refrigeration pipe is arranged between the expansion device and the ice making cylinder, and the refrigeration pipe is closely fitted to the ice making cylinder and the expansion device after the expansion device expands the refrigeration pipe in the radial direction of the ice making cylinder.

4. The frozen beverage manufacturing machine of claim 1, wherein, The expansion device extends along the axial direction of the ice making cylinder and is coaxially arranged with the ice making cylinder. The evaporator further comprises a pressing device, the pressing device is arranged at the opposite ends of the expansion device in the axial direction of the ice making cylinder, and the pressing device abuts against the expansion device and limits the displacement of the expansion device in the radial direction of the ice making cylinder. ​ The end of the pressing part towards the expanding part has a pressing slope, the expanding part has a corresponding expanding slope, and the fitting area of the pressing slope and the expanding slope gradually increases during the movement of the pressing part towards the expanding part; The expanding part is a circular ring cylinder, and a notch is arranged on the expanding part and extends from the first end of the expanding part to the second end of the expanding part along the axial direction of the ice making cylinder.

5. The frozen beverage manufacturing machine of claim 1, wherein, The power device comprises a motor, a transmission shaft pivotally connected with the motor, and the free end of the transmission shaft is connected with the stirrer; Further comprising a bearing part, which is arranged on one side close to the free end of the transmission shaft and located in the cavity of the ice making cylinder; The ice making cylinder has an end face on one side in the mixing container, and the bearing part is arranged on the end face; The end face is snap-connected with the ice making cylinder, or the end face is integrally formed with the ice making cylinder.

6. The frozen beverage manufacturing machine of claim 5, wherein, A through hole is arranged on the end face, and the free end of the transmission shaft passes through the through hole and is located in the mixing container; Further comprising a sealing part, which is arranged at the through hole and seals against the transmission shaft.

7. The frozen beverage manufacturing machine of claim 1, wherein, The stirrer comprises a scraping part and a pushing part, the scraping part is attached to the outer side wall of the ice making cylinder to scrape the solid body condensed, and the pushing part pushes the scraped solid body forward during rotation.

8. The frozen beverage manufacturing machine of claim 7, wherein, The scraping part is linear and extends along the axial direction of the ice making cylinder; the pushing part is helically arranged along the axial direction of the ice making cylinder and extends to the outside of the ice making cylinder.

9. The frozen beverage manufacturing machine of claim 7, wherein, A rubber strip is arranged on the scraping part, and the rubber strip abuts against the outer side wall of the ice making cylinder.

10. The frozen beverage manufacturing machine of claim 9, wherein, The rubber strip is shaped to fit the scraping part, and the rubber strip and the outer side wall of the ice making cylinder are in interference fit.

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